WO2013102391A1 - 用于定位和组装轴套的泵车底架工装夹具 - Google Patents

用于定位和组装轴套的泵车底架工装夹具 Download PDF

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Publication number
WO2013102391A1
WO2013102391A1 PCT/CN2012/086111 CN2012086111W WO2013102391A1 WO 2013102391 A1 WO2013102391 A1 WO 2013102391A1 CN 2012086111 W CN2012086111 W CN 2012086111W WO 2013102391 A1 WO2013102391 A1 WO 2013102391A1
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WO
WIPO (PCT)
Prior art keywords
positioning
bushing
platform
sleeve
mandrel
Prior art date
Application number
PCT/CN2012/086111
Other languages
English (en)
French (fr)
Inventor
廖孟安
余彪
张海涛
王丽霞
Original Assignee
中联重科股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中联重科股份有限公司 filed Critical 中联重科股份有限公司
Publication of WO2013102391A1 publication Critical patent/WO2013102391A1/zh

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60PVEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00Vehicles adapted to transport, to carry or to comprise special loads or objects

Definitions

  • the present invention relates to a pump undercarriage fixture, and more particularly to a pump undercarriage fixture for positioning and assembling a bushing. Background technique
  • the pump truck chassis (the “concrete pump truck chassis”) is installed on the concrete pump truck chassis frame. It is the main force-receiving member of the concrete pump truck. It is generally designed as a box structure, and the fuel tank and water tank are usually provided inside. Wait.
  • the main body portion of the chassis serves as a swivel base of the box-shaped frame structure and is used for mounting components such as legs, hydraulic cylinders and the like.
  • FIGS. 1 and 2 show a front view and a top plan view of a model of a pump chassis as an example, from which it can be seen for mounting the front legs.
  • Upper and lower leg bushings 102, hydraulic cylinder bushings 104 for mounting hydraulic cylinders, and upper and lower leg bushings 103 for mounting rear legs are respectively mounted on respective axles of the pump chassis 101
  • these sleeves have strict positional accuracy requirements, such as the coaxiality requirements of the upper and lower leg bushings 102. If the corresponding positional accuracy requirements are not met, the legs and other components may not be installed or use.
  • the assembly of the bushing on the chassis of the pump truck often does not have a special fixture, and the positioning of the sleeve is often completed by means of manual scribing, and then the sleeve is welded to the corresponding bushing.
  • this not only makes the positional accuracy of the sleeve difficult to guarantee, but also affects the installation of subsequent legs, hydraulic cylinders, etc., and the positioning and assembly work of the sleeve is extremely inconvenient, the operation is difficult, and the assembly efficiency is low.
  • the shape of the box structure of the pump chassis 101 is substantially similar, the pump chassis has many types of products, especially the length dimension, which also makes it difficult to design the pump chassis fixture.
  • the disadvantage of the prior art is that the bushing welding assembly work of the pump chassis has no special fixtures, and relies entirely on the worker's skill to assemble, and it is difficult to meet the requirements of the drawings for the sleeve positioning size, workers The level of operation will affect the positional accuracy of the bushing, especially the coaxiality of the shaft hole of the relevant bushing, which will result in the subsequent legs and hydraulic cylinders being unable to be installed or used.
  • the technical problem to be solved by the present invention is to provide a pumping undercarriage fixture for positioning and assembling a bushing, which can not only accurately and accurately realize the positioning and assembly work of the pump chassis underframe bushing. Moreover, it can be applied to the bushing assembly work of various types of pump chassis under its adjustment range.
  • the present invention provides a pump chassis fixture for positioning and assembling a bushing, wherein the pump chassis fixture includes a platform, and the top surface of the platform is symmetrically mounted in the longitudinal direction. Two front front leg bushing positioning devices and two side rear leg bushing positioning devices, and the top surface of the platform is further provided with support adjustment for supporting the pump truck chassis and adjusting the height position of the pump truck chassis.
  • the device, the spacing between each of the front leg bushing positioning devices and the rear leg bushing positioning device on the same side can be adjusted along the longitudinal direction of the platform, and the positioning of each of the front and rear leg bushings
  • the device includes a positioning mandrel for inserting into a leg bushing mounting hole of the pumping vehicle undercarriage, and a positioning sleeve for inserting on the positioning mandrel and engaging with an outer circumferential surface of the positioning mandrel a component, and a bottom locating disc assembly for supporting the locating mandrel at a lower end portion of the locating mand
  • the support adjustment device includes a plurality of contour support seats symmetrically disposed on a top surface of the platform along a longitudinal direction of the platform, and a top portion of the platform disposed adjacent to each of the contour support seats Several jacks on the face.
  • the pump chassis fixture fixture fixture further includes a hydraulic cylinder sleeve positioning device symmetrically mounted on a top surface of the platform along a longitudinal direction of the platform, the hydraulic cylinder sleeve positioning device being along the platform The longitudinal direction is between the front leg bushing positioning device and the rear leg bushing positioning device.
  • each of the hydraulic cylinder sleeve positioning devices includes a support base, a positioning pin for engaging with a sleeve through hole of the hydraulic cylinder sleeve to position the hydraulic cylinder sleeve, a positioning top sleeve, and a positioning spacer.
  • the support base includes a base plate mounted on a top surface of the platform and a support plate above the base plate, the support plate having a positioning pin hole that cooperates with the positioning pin, the positioning top cover and The positioning spacer can be sleeved on the positioning pin and cooperate with the outer circumferential surface of the positioning pin.
  • the support plate of the support base protrudes above the base plate relative to the base plate.
  • each of the front and rear leg sleeve positioning devices further includes a positioning device base, the positioning device base has a mounting bottom plate, and the top of the positioning device base is mounted with a positioning hole with a mandrel. board.
  • the positioning plate is fixed to the top of the positioning device base by bolts and positioned by the positioning pin.
  • the positioning member in the positioning sleeve assembly includes three sleeve positioning cams and a positioning sleeve, each of the sleeve positioning flanges has a protruding portion and the protruding portion can protrude into the leg In the sleeve through hole of the sleeve, an outer peripheral surface of the protruding portion can cooperate with an inner circumferential surface of the sleeve through hole of the leg sleeve to position the corresponding leg sleeve.
  • the positioning disc assembly includes a positioning disc base, a bottom positioning disc, and a positioning spacer sleeve.
  • the positioning disc base is mounted on a mounting bottom plate of the positioning device base, and the positioning disc base has a Positioning a disc placement hole of the bottom positioning disc, the bottom positioning disc having an upper boss, a positioning disc body and a lower boss, and forming a mandrel penetrating the upper boss, the positioning disc body and the lower boss Inserting a hole
  • the positioning spacer sleeve can be inserted over the upper boss and engaged with the outer peripheral surface of the upper boss, and the outer peripheral surface of the positioning spacer sleeve can be through the sleeve through hole of the leg sleeve
  • the lower boss can be inserted into the positioning plate placement hole of the positioning plate base, and the diameter of the lower end portion of the positioning mandrel is smaller than the main body portion of the positioning mandrel, so that the The positioning mandrel is formed
  • a flat key is mounted or formed on an outer peripheral surface of the lower boss of the bottom positioning plate, and a keyway that matches the flat key is formed on an inner circumferential surface of the positioning plate placement hole of the positioning disk base.
  • the lower boss is positioned by the cooperation of the flat key and the key groove in a state of being inserted into the positioning hole of the positioning disk.
  • a center axis of the mandrel fitting hole on the positioning plate has an offset value with respect to a symmetry center line of the positioning plate, and a center axis of the mandrel insertion hole on the bottom positioning plate is positioned relative to the bottom
  • the center axis of the disk has the offset value, and the key groove is symmetrically formed on the inner circumferential surface of the positioning plate placement hole of the positioning disk base.
  • the front and rear leg sleeve positioning devices further comprise an aperture detecting sleeve for detecting the mounting hole of the leg sleeve, the aperture detecting sleeve being capable of being threaded on the positioning mandrel and being positioned The outer peripheral surface of the mandrel is fitted.
  • a sliding rail is symmetrically mounted on a top surface of the platform along a longitudinal direction of the platform, and each of the front leg bushing positioning devices is respectively mounted on a corresponding sliding table, and the bottom of each of the sliding platforms has a Corresponding sliding joints of the sliding rails.
  • a plurality of latch mechanisms are symmetrically mounted on the longitudinal edges of the top surfaces of the platform, each of which is
  • Each of the latch mechanisms includes a fixed latch, and each of the slides has a latch hole for inserting the fixed latch.
  • the top surface of the platform is further provided with a bead corresponding to each of the sliding tables, each of the beadings is formed with a T-shaped groove, and each of the T-shaped grooves is provided with a pressing bolt, and each of the sliding tables Forming a sliding table opening groove, the bolt head of the pressing bolt is located in the T-shaped groove, and the screw portion of the pressing bolt passes through the sliding slot opening groove on the corresponding sliding table and is screwed There are nuts.
  • each of the slide tables is further formed with a threaded hole in which a support screw is mounted.
  • a support screw is mounted on each of the slide tables, and the support screws are symmetrically arranged with respect to the respective open slots of the slide table.
  • the pumping undercarriage fixture for positioning and assembling the bushing of the present invention can be used for assembling the bushing welding sleeve of various types of pumping vehicle underframes, which can improve the welding quality and reduce the deformation over tolerance.
  • the spacing between each of the front leg bushing positioning devices and the rear leg bushing positioning device on the same side thereof can be adjusted along the longitudinal direction of the platform (for example, through a sliding rail), which increases
  • the adjustable length of the tooling in the length direction realizes that the pump chassis of different lengths is welded on the same pumping platform fixture, which makes the whole tooling simple and convenient, and the position is fixed accurately.
  • the top end of the positioning mandrel is designed with a eye bolt, so that the mandrel can be easily inserted and removed by the spreader;
  • the longitudinal center lines of the left and right front leg bushing positioning devices are relatively
  • the offset value of the longitudinal center line of the platform, the mandrel insertion hole on the bottom positioning plate, and the offset value of the mandrel matching hole on the positioning plate are all calculated according to the actual production model of the pump chassis, so that This makes the whole set of tools more widely applicable, and the workers can easily adjust the installation direction, and can be applied to the assembly of the pump chassis of the corresponding size, which increases the versatility.
  • 1 and 2 are respectively a front view and a top plan view of a model of a pump chassis as an example.
  • 3 is a front elevational view showing a pumping undercarriage fixture for positioning and assembling a bushing according to an embodiment of the present invention.
  • a cross-sectional display form is partially used in the drawing. .
  • FIG 4 is a top plan view of the pumping undercarriage fixture for positioning and assembling the bushing shown in Figure 3, The structure of the pumping frame fixture is clearly shown, and the cross-sectional display form is partially used in the drawing, and the contour support seat and the jack are omitted.
  • FIG. 5 and FIG. 6 are respectively a front view and a top reference schematic view of the pumping undercarriage fixture in the working state shown in FIG. 3, wherein the pumping undercarriage fixture is positioned with a pump chassis, Two different types of pump chassis are shown to illustrate that the pump chassis fixture of the present invention can be used for assembly of different types of pump chassis, in order to clearly show the structure of the pump chassis fixture In the figure, a partial cross-sectional display form is adopted.
  • Fig. 7 is a partial schematic view, taken along line A of Fig. 6, showing a partial cross-sectional display form.
  • 8 is a schematic structural view of a front leg bushing positioning device of a pumping undercarriage fixture according to an embodiment of the present invention, wherein a partial cross-sectional display form is adopted, and the positioning mandrel is positioned in a double-dotted line form. The front leg bushing is shown.
  • Figure 9 is a top plan view of the positioning plate in the front leg bushing positioning device shown in Figure 8.
  • Figure 10 is a top plan view of the positioning plate base in the front leg bushing positioning device shown in Figure 8.
  • Figure 11 is a cross-sectional structural view showing the bottom positioning plate of the front leg bushing positioning device shown in Figure 8.
  • Figure 12 is a schematic view of the structure taken along the direction B in Figure 11 .
  • FIG. 13 is a partially enlarged installation view of the bottom positioning plate assembly of the front leg bushing positioning device of FIG. 8.
  • FIG. 13 is a supporting base of a hydraulic cylinder bushing positioning device of a pumping vehicle underframe fixture according to an embodiment of the present invention. Schematic diagram of the seat.
  • Figure 15 is a structural view showing the structure of a hydraulic cylinder sleeve positioning device of a pumping vehicle underframe fixture according to an embodiment of the present invention
  • the length direction of the platform of the pumping undercarriage fixture (hereinafter referred to as “pump chassis fixture") for positioning and assembling the bushing of the present invention is “longitudinal”.
  • Direction the left end of the platform shown in Figures 3 to 6 is “front end”, and the right end is “rear end”.
  • the front part of the pump chassis 101 is located.
  • the front portion of the upper surface of the platform 1 and the rear portion are located at the rear portion of the upper surface of the platform 1.
  • FIGS. 1 and 2 show a front view and a top plan view of a model of a pump chassis as an example. It should be noted that although the pump chassis 103 of this type is shown in FIGS.
  • Hydraulic cylinder bushing mounting holes but for other pumping truck chassis, for example, pumping truck chassis with oscillating legs is not required It is necessary to mount the hydraulic cylinder on the pump chassis, so that it is not necessary to assemble the hydraulic cylinder sleeve 104 on these pump chassis. At the same time, in the production practice, the pump chassis of different models produced by the same manufacturer, if the hydraulic cylinder bushing 104 needs to be installed, the position of the mounting hole of the hydraulic cylinder shaft hole on the pump chassis is generally fixed, that is, relative to The position of the rear leg bushing mounting hole on the pump chassis 101 is fixed.
  • the main change of the different types of pump chassis of the same manufacturer is the change of the length dimension of the pump chassis, and the position of the mounting hole of the rear leg bushing of the pump chassis is generally fixed as The reference hole, when the length of the pump chassis is changed, the distance between the rear leg bushing mounting hole and the front leg bushing mounting hole will vary, but the left and right front leg bushing mounting holes The spacing between the left and right rear leg bushing mounting holes remains the same for the same series of pumping truck chassis. Of course, different series of pumping truck chassis will change, but the changes are compared. small.
  • the conditions in the above production practice enable the design of a pump chassis fixture that can be applied to a variety of models.
  • the pumping undercarriage fixture of the basic embodiment of the present invention comprises a platform 1.
  • the top surface of the platform 1 is symmetrically mounted with two side front leg bushing positioning devices 2 and two in the longitudinal direction.
  • a side rear leg bushing positioning device 4 and a top surface of the platform 1 is further provided with support adjusting means for supporting the pumping vehicle chassis 101 and adjusting the height position of the pumping vehicle chassis 101, each of the front branches
  • the spacing between the leg bushing positioning device 2 and the rear leg bushing positioning device 4 on the same side thereof can be adjusted along the longitudinal direction of the platform 1, and the structure of the front and rear leg bushing positioning devices 2
  • each of the front and rear leg bushing positioning devices 2, 4 respectively includes a positioning mandrel 25 for inserting into a leg bushing mounting hole of the pump truck chassis 101, for wearing the sleeve a positioning sleeve assembly on the positioning mandrel 25 and engaging the outer circumferential surface of the positioning mandrel 25, and a bottom positioning disk assembly
  • the pumping undercarriage fixture includes the platform 1, the front and rear leg bushing positioning devices 2, 4 and the supporting adjustment device, and each of the front and rear leg shafts
  • the sleeve positioning devices 2, 4 each include a positioning mandrel 25 for positioning the sleeve, a positioning sleeve assembly, and a positioning disc assembly, thereby effectively positioning and assembling the pump chassis 101.
  • the pumping undercarriage fixture of the basic embodiment can be used for at least different types of assembly length and dimensional changes. Pump truck chassis 101, 105. It will be apparent to those skilled in the art that a variety of more specific preferred embodiments or simple modifications can be made within the technical concept of the pump undercarriage fixture of the above-described basic embodiment, which will be described below.
  • the platform 1 is the carrier of the pumping frame fixture of the present invention, and the top surface thereof can ensure a certain degree of flatness.
  • the structure of the present invention is not specifically limited.
  • the platform 1 can be manufactured from a variety of suitable materials, as long as the support strength is ensured, and the platform 1 can be a cast iron platform in terms of manufacturing and cost.
  • the above-mentioned support adjusting device is mainly used for supporting and adjusting the height position of the pump chassis 101 or 105 so that the pump chassis is supported substantially horizontally above the top surface of the platform 1, for those skilled in the art, This can be achieved by a variety of well known techniques.
  • the support adjustment device includes a plurality of contour support seats 6 symmetrically disposed on a top surface of the platform along a longitudinal direction of the platform, and four contour support seats are shown in FIG. 6.
  • the heights of the respective height support seats 6 are the same for supporting the pump chassis 101. Since the shape of the pump chassis 101 has a certain irregularity, the pump chassis 101 is at the same height support.
  • the seat 6 often has a tilting phenomenon.
  • the support adjusting device further includes a plurality of jacks 5 disposed on the top surface of the platform 1 adjacent to the respective contour support seats 6, that is, the jacks 5 respectively correspond to Corresponding to the contour support seat 68, the jack is a self-made piece, which is adjustable by a T-thread. Thus, when a certain portion of the pump chassis 1 is tilted, it can be adjusted by the jack 5.
  • the pump chassis 103 of these models has a hydraulic cylinder sleeve mounting hole, so that it is required to be installed in the left and right cylinder bushing mounting holes.
  • the pump chassis fixture of the present invention further includes a hydraulic cylinder sleeve positioning device 3 symmetrically mounted on a top surface of the platform 1 in a longitudinal direction of the platform 1, the hydraulic cylinder shaft
  • the sleeve positioning device 3 is located between the front leg bushing positioning device 2 and the rear leg bushing positioning device 4 in the longitudinal direction of the platform.
  • the hydraulic cylinder sleeve positioning device 3 is mainly used for positioning and assembling the hydraulic cylinder sleeve 104, which may have various specific structures, for example, as shown in FIG. 3, FIG. 14 and FIG.
  • the hydraulic cylinder sleeve positioning device 3 includes a support base 12, a positioning pin 13 for engaging the sleeve through hole of the hydraulic cylinder sleeve 104 to position the hydraulic cylinder sleeve 104, a positioning sleeve 14 and a positioning spacer
  • the support base 12 includes a base plate detachably mounted on a top surface of the platform 1 and a support plate above the base plate, the support plate having a positioning coordinate with the positioning pin 13.
  • the pin hole, the positioning sleeve 14 and the positioning spacer 15 can be sleeved on the positioning pin 13 and engaged with the outer circumferential surface of the positioning pin 13.
  • the positioning top sleeve 14 is supported on the support plate of the support base 12, and then the lower hydraulic cylinder bushing 104 is mounted in sequence (the lower hydraulic cylinder bushing mounting hole mounted to the pump chassis 103) Inner), the positioning spacer 15 and the upper cylinder bushing 104 (installed in the upper cylinder bushing mounting hole of the pump chassis 103), and then the positioning pin 13 is inserted into the upper cylinder bushing 104 from the top to the bottom.
  • the spacer sleeve 15, the lower cylinder bushing 104, the positioning jack 14 and the positioning pin hole of the support plate of the support base 13 serve to position.
  • the support base 12 is fixed to the platform 1 by bolts, for example, and the lower hydraulic cylinder sleeve 104 is supported by the positioning top sleeve 14 so that the height of the lower hydraulic cylinder sleeve 104 is determined, and the positioning spacer 15 is mounted on the upper and lower sides. Between the hydraulic cylinder bushings; the positions of the upper and lower hydraulic cylinder bushings are all positioned by the positioning pin 13. Referring to Fig.
  • the structure of the support base 12 is formed as An offset structure, that is, a support plate of the support base 12 protrudes relative to the base plate so that the base plate can avoid other components (such as slide rails) on the platform 1 and simultaneously It can ensure the position of the positioning pin hole.
  • the spacing between each of the front leg bushing positioning devices 2 and the rear leg bushing positioning device 4 on the same side thereof can be adjusted along the longitudinal direction of the platform 1, that is, The spacing between the front leg bushing positioning device 2 and the rear leg bushing positioning device 4 can be varied, because in the production practice, the rear leg bushing mounting holes on the pump chassis 103 are generally fixed.
  • the rear leg bushing positioning device 4 is fixed (for example by bolts or the like) on the top surface of the platform 1, and the front leg bushing positioning device 2 is mounted on The top surface of the platform 1 is capable of changing the positioning position along the longitudinal direction of the platform 1 to adjust the spacing between the front leg bushing positioning device 2 and the rear leg bushing positioning device 4.
  • the present invention is not limited thereto, and it is also within the scope of the present invention to be able to change the mounting position of the rear leg bushing positioning device 4.
  • each of the front and rear leg bushing positioning devices 2, 4 includes a positioning mandrel 25, a positioning sleeve assembly and a positioning plate assembly, respectively, and each of the positioning sleeve assemblies can be mounted on the leg.
  • the sleeve through holes of the respective leg bushings 102, 103 in the bushing mounting holes cooperate to position the leg bushings 102, 103.
  • each of the front and rear leg bushing positioning devices 2, 4 respectively includes a positioning device base 21 having a mounting bottom plate and the positioning device base The top of the 21 is mounted with a positioning plate 22 having a mandrel fitting hole.
  • the positioning member in the positioning sleeve assembly includes three bushing positioning flanges 26 and a positioning sleeve 27, and each of the sleeve positioning flanges 26 and the positioning sleeve 27 can be sleeved on the positioning mandrel 25 and cooperate with the outer circumferential surface of the positioning mandrel 25, each of the bushing positioning flanges 26 has a convex portion and the protruding portion can protrude into the leg In the sleeve through hole of the sleeve 102, the outer peripheral surface of the protruding portion can be coupled to the leg The inner circumferential surface of the sleeve through hole of the sleeve 102 cooperates to position the corresponding upper and lower leg bushings 102; the positioning disk assembly includes a positioning plate base 28, a bottom positioning plate 29, and a positioning spacer 30.
  • the positioning disk base 28 is mounted on a mounting base of the positioning device base 21, and the positioning disk base 28 has a positioning disk placement hole for placing the bottom positioning disk 29, and the bottom positioning disk 29 has a boss, a positioning plate body and a lower boss, and a mandrel insertion hole 37 penetrating through the upper boss, the positioning plate body and the lower boss, the positioning spacer 30 being insertable on the upper boss Up and engaging with the outer peripheral surface of the upper boss, and the outer peripheral surface of the positioning spacer 30 can be engaged with the inner peripheral surface of the sleeve through hole of the leg bushing 102, and the lower boss can be inserted into the
  • the positioning plate is placed in the positioning hole of the positioning plate base 28, and the diameter of the lower end portion of the positioning mandrel 25 is smaller than the main body portion of the positioning mandrel 25, so that the positioning mandrel 25 is formed as a stepped shaft.
  • the lower end portion of the shaft 25 can be inserted into the mandrel
  • the hole 37 is inserted into the hole 37 and cooperates with the mandrel insertion hole 37 to support the stepped surface of the positioning mandrel 25 through the top surface of the upper boss.
  • the outer peripheral surface of the lower boss of the bottom positioning plate 29 is mounted or formed with a flat key 32, and the inner peripheral surface of the positioning disk seating hole of the positioning disk base 28 is formed with The flat key 32 cooperates with the keyway 35, and the lower boss is positioned by the cooperation of the flat key 32 and the keyway 35 in a state of being inserted into the positioning disk placement hole.
  • the distance of the longitudinal centerline 11 of the front leg bushing positioning device relative to the longitudinal centerline 9 of the platform can be determined based on the actual production of the pump chassis.
  • the center axis 34 of the mandrel fitting hole on the positioning plate 22 has an offset value m with respect to the symmetrical center line 33 of the positioning plate 22, and the bottom positioning is performed.
  • the central axis of the mandrel insertion hole 37 on the disk 29 has the offset value m with respect to the central axis of the bottom positioning disk 29, and the inner circumferential surface of the positioning disk seating hole of the positioning disk base 28 is symmetrically formed.
  • the keyway 35, the offset value m described above may be selected according to the situation for different manufacturers.
  • the pump chassis fixture of the present invention can be adapted to at least two different series of pump chassis. Specifically, for example, if the offset value m is 8 mm, when the spacing between the mounting holes of the left and right front leg bushings of the pump chassis 101 is 90 mm, the positioning plate 2 can be mounted such that its mandrel fits the hole.
  • the spacing between the positioning mandrels 25 is, for example, 96 mm, which can be applied to the pump chassis of the left and right front leg bushing mounting holes of the pump chassis 101 with a spacing of 96 mm; and when the pump chassis When the distance between the mounting holes of the left and right front leg bushings of 101 is 112 mm, that is, when the pump chassis 103 is another series of pump chassis, the positioning plate 2 is flipped over so that the mandrel fits the hole.
  • the spacing between the positioning mandrels 25 on the front leg bushing positioning devices 2 on both sides can be increased to 112 mm, so that it can be applied to, for example, a pump having a spacing of 112 mm between the mounting holes of the left and right front leg bushings.
  • Car chassis
  • the specific mounting sequence during assembly is to insert the bottom positioning plate 29 into the positioning plate base. 28, then stacking the positioning spacer sleeve 30, the front lower leg sleeve 102 (mounted in the front lower leg bushing mounting hole of the pump chassis 103), the first sleeve positioning flange 26, positioning The sleeve 27, the second sleeve positioning flange 26, the front upper leg bushing 102 (installed in the front upper leg bushing mounting hole of the pump chassis 103), and the third sleeve positioning flange 26, the positioning mandrel 25 is inserted into the mandrel fitting hole of the positioning plate 22 from the top to the bottom, the third bushing positioning flange 26, the front upper leg bushing 102, the second bushing positioning flange 26, The positioning sleeve 27, the first sleeve positioning flange 26, the front lower leg bushing 102, and the
  • the positioning device base 21 may be welded into a box structure by a plurality of plates, wherein for the mounting bottom plate of the positioning device base 21 of the front leg bushing positioning device 2, Since the front leg bushing positioning device 2 needs to be able to change position, the mounting bottom plate of the positioning device base 21 can be bolted to the sliding table with the sliding seat (described in detail below) for the rear leg.
  • the mounting base of the positioning device base 21 of the sleeve positioning device 4 it can be directly fixed to the top surface of the platform 1 by bolts.
  • the positioning plate 22 can be fixed to the top of the positioning device base 21 by bolts, and can be secondarily positioned by the positioning pin 23.
  • the top of the positioning device base 21 needs to be formed correspondingly. Pin hole.
  • the top end of the positioning mandrel 25 may be provided with a eye bolt 24, so that the lifting or insertion of the positioning mandrel is more convenient.
  • the front and rear leg sleeve positioning devices 2, 4 may further include an aperture detecting sleeve 31 for detecting the mounting hole of the leg sleeve, and the aperture detecting sleeve 31 can pass the positioning mandrel. 25 is fitted to the outer peripheral surface of the positioning mandrel 25. The aperture of the leg bushing mounting hole on the pump chassis 103 is tested prior to assembly of the bushing to determine if the leg bushing mounting hole needs to be trimmed.
  • each of the front leg bushing positioning devices 2 and the rear leg bushing positioning device 4 on the same side thereof can be adjusted along the longitudinal direction of the platform 1, which is Those skilled in the art can have a variety of technical means for implementation.
  • the top surface of the platform 1 is symmetrically mounted with slide rails 7 along the longitudinal direction of the platform 1, and each of the front leg bushing positioning devices 2 is respectively mounted on the corresponding
  • the bottom of each of the slide tables 20 has a slide seat that is slidably engaged with the corresponding slide rail 7.
  • the slide rails on each side may include two slide rails 7 that are symmetrical with respect to the longitudinal centerline 11 of the front leg bushing positioning device on the side, and the bottom of the corresponding MiG slide table 20 is provided with two slide seats.
  • the installation manner of the front leg bushing positioning device 2 is not limited to the above-mentioned way of the slide rail, and the simplest, according to the length of the pump type chassis 101 of different models to be assembled, A threaded mounting hole corresponding to the length of the pump platform chassis 101 of different models is formed on the top surface of the platform 1, so that the front leg bushing positioning device 2 is mounted on the corresponding threaded mounting when assembling a specific model of the pump chassis. In the hole, this simple modification can also achieve the purpose of adjusting the front leg bushing positioning device 2.
  • other embodiments can be conceived by those skilled in the art as long as the position adjustment of the front leg bushing positioning device 2 can be realized. Just fine.
  • a plurality of latch mechanisms 8 are symmetrically mounted on the longitudinal edges of the top surfaces of the platform 1, and each of the latch mechanisms 8 includes a fixed latch 16 respectively.
  • the slide table 20 has a pin hole for inserting the fixing pin 16.
  • the top surface of the platform 1 is further provided with a bead 17 corresponding to each of the sliding tables 20, and each of the bead 17 is formed with a T-shaped groove, each of which is The T-shaped groove is provided with a pressing bolt 19, and each of the sliding table 20 is formed with a sliding table opening groove 10, the bolt head of the pressing bolt 19 is located in the T-shaped groove, and the pressing bolt 19 is The screw portion passes through the slide opening groove 10 on the corresponding slide table 20 and is threadedly fitted with a nut.
  • the slide table 20 is required to be slid, the nut can be loosened from the slide table 20.
  • the slide block can be further reliably fixed by tightening the nut after the fixed pin 16 is locked. 20.
  • each of the slide tables 20 is further formed with a threaded hole in which a support screw 18 is mounted.
  • a support screw 18 is mounted.
  • the support screws 18 are arranged symmetrically with respect to each of the slide opening slots 10.
  • the above describes a preferred embodiment of the specific structure of the pump chassis fixture of the present invention and a simple modification. To help those skilled in the art to understand the technical solution of the present invention more deeply, the following is shown in conjunction with FIG. 3 to FIG.
  • the pumping undercarriage fixture of the preferred construction of the present invention is intended to illustrate the functions to be achieved by the various components and to briefly describe its operation.
  • a jack 5 is also disposed in the same direction.
  • the handle of the corresponding position of the jack 5 is rotated to adjust the height of the pump chassis to place the pump chassis in the optimal assembly position; the rear leg sleeve positioning The device 4 is fixed on the platform 1 and the position is not adjustable.
  • the rear leg bushing positioning device 4 is used as a reference, and the front leg bushing positioning device is adjusted.
  • the position of the latch mechanism 8 is designed, according to the corresponding model of the pump chassis, the fixed pin 16 of the corresponding position of the latch mechanism 8 is used to position the front leg bushing positioning device 2 performing position determination, inserting the latch 16 into the pin hole of the slide table 20; after the position of the front leg bushing positioning device 2 is determined, the bolt head of the pressing bolt 19 is placed in the T-shaped groove of the bead 17, and Slide the screw portion of the compression bolt 19 into the slide opening groove 10 of the slide table 20, and tighten the nut on the compression bolt to completely fix the position; the slide table 20 is fixed at a single point while preventing a single point. Forced deformation At a position about two bolts 10, the screw 18 is supported by the support, the lower support supporting action of the screw 19, the slide table 20 is always holding the horizontal position of the platform.
  • the function of the front leg bushing positioning device 2 is specifically as follows:
  • the longitudinal centerline 11 of the front leg bushing positioning device is the longitudinal centerline of the corresponding slide table 20.
  • the longitudinal centerline 11 of the front leg bushing positioning device 2 on both longitudinal sides of the platform 1 is symmetrical with respect to the longitudinal centerline of the platform;
  • the positioning plate base is bolted to the base on the center line of the front end bushing positioning device.
  • the offset value of the shaft matching hole can be determined according to the product model to be produced; when the center of the left and right side leg bushing mounting holes of the pump chassis 101 is opposite to the front side of the front leg bushing positioning device When the center line is offset from the longitudinal centerline 9 of the platform, the mandrel fitting holes of the side positioning plates 22 and the mandrel insertion holes of the bottom positioning plate 29 are relatively close to the longitudinal centerline 9 of the platform, and are respectively mounted on the positioning device base.
  • the top of the 21 is placed in the positioning plate placement hole of the positioning plate base 28; otherwise, the mandrel insertion hole of the positioning plates of the two side plates and the mandrel insertion hole of the bottom positioning plate are relatively far from the longitudinal center line of the platform, respectively, and are respectively positioned
  • the top of the device base 21 and the positioning plate placement hole of the positioning plate base 28 are disposed; the positioning disk of the positioning disk base 28 is symmetrically opened with a keyhole, and the bottom positioning plate 29 can be installed in the above two forms. As long as the chassis positioning plate 29 is rotated by 180 degrees, the positioning plate 22 can be flipped and mounted because it is symmetrical.
  • the center of the positioning mandrel 25 is the center of the upper and lower leg bushings of the pump chassis, and the position of the positioning mandrel is fixed, so that the position of the leg bushing can be fixed.
  • the aperture of the mounting hole of the upper and lower leg bushings on the pump chassis 103 is detected, and the outer diameter of the aperture detecting sleeve 31 is equal to the diameter of the mounting hole of the leg bushing.
  • Offset need to be ground, after the grinding is completed, take out the outer diameter measuring sleeve; lift the positioning mandrel 25-part, and insert the front lower leg bushing 102, in order from bottom to top.
  • the outer diameter is equal to the inner diameter of the lower leg bushing of the front portion, and the bottom of the lower leg bushing of the front portion is placed on the bottom positioning plate 29, one end is fixed by the positioning spacer sleeve 30, and the other end is positioned by the first bushing.
  • the boss 26 is fixed; it is known that the leg sleeves on one side of the pump chassis are of upper and lower distribution structure (the front leg bushing, the rear leg bushing and the hydraulic cylinder bushing are the same), currently After the lower leg bushing is fixed, the positioning sleeve 27 is used to position the front upper leg bushing; one end of the second upper bushing positioning cam is respectively inserted into the front upper leg bushing In the sleeve through hole, the mandrel fitting hole of the positioning plate 22, the third bushing positioning flange 26, the front upper leg bushing 102, and the second shaft are sequentially inserted from the top to the bottom by the positioning mandrel 25.
  • the cylinder sleeve positioning device 3 also determines the center position of the cylinder sleeve by means of a locating pin. Positioning the top sleeve 14 determines the height of the lower hydraulic cylinder sleeve, the positioning spacer 15 determines the distance between the two hydraulic cylinder sleeves and the height of the upper hydraulic cylinder sleeve, and inserts the upper hydraulic cylinder sleeve 104 from the top to the bottom, The positioning spacer 15, the lower cylinder bushing 104, the positioning top sleeve 14, and the positioning pin hole of the supporting plate of the supporting base 13 serve to position.
  • the present invention provides a pumping undercarriage fixture for positioning and assembling a bushing, which has the advantages of being able to be used for bushing welding sleeves of various types of swing leg pump chassis.
  • Assembling and assembling the hydraulic cylinder bushings of the corresponding type of telescopic leg pump chassis which can improve the welding quality, reduce the deformation tolerance and improve the work efficiency, and each of the front leg bushing positioning devices 2 is the same
  • the spacing between the rear leg bushing positioning devices 4 on the side can be adjusted along the longitudinal direction of the platform 1 (for example, through the slide rails), the adjustability of the tool length in the longitudinal direction is increased, and pumps of different lengths are realized.
  • the underframe is welded on the same pumping platform fixture, which makes the whole tooling simple and convenient, and the position is fixed accurately.
  • the top end of the positioning mandrel is designed with a lifting eye bolt, so that the insertion and extraction function of the mandrel can be conveniently realized by the spreader;
  • the longitudinal center line of the left and right front leg bushing positioning device is opposite to the longitudinal direction of the platform.

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Abstract

用于定位和组装轴套的泵车底架工装夹具,包括平台(1)、安装在该平台上的两侧前支腿轴套定位装置(2)和两侧后支腿轴套定位装置(4)以及支撑调节装置,各个前支腿轴套定位装置(2)的位置能够调节,各个前、后支腿轴套定位装置分别包括定位芯轴(25)、用于穿套在所述定位芯轴上的定位套组件、以及用于支撑该定位芯轴(25)的底部定位盘组件,所述定位套组件中用于定位支腿轴套(102;103)。本发明能够用于多种型号的泵车底架的轴套焊套组装,其能够提高焊接质量、降低变形超差、提高工作效率,其实现不同长度尺寸的泵车底架在同一泵车底架工装夹具上焊接组套,使得整个工装可调性简单、便捷,位置固定精确。

Description

用于定位和组装轴套的泵车底架工装夹具
技术领域
本发明涉及一种泵车底架工装夹具, 具体地, 涉及一种用于定位和组装轴套的泵 车底架工装夹具。 背景技术
泵车底架 (即 "混凝土泵车底架") 安装在混凝土泵车底盘车架上, 其作为混凝土 泵车的主要受力构件, 一般设计为箱体结构, 同时内部通常设有油箱和水箱等。 所述底 架的主体部分作为箱形框架结构的回转底座, 并用于安装支腿、 液压缸等部件。 在加工 完成箱形结构的泵车底架后, 需要在泵车底架上的轴套安装孔安装轴套, 这些轴套中的 相应的轴套之间的位置具有严格要求, 如果不能满足一定的位置精度, 将导致安装在这 些轴套内的支腿、 液压缸等部件无法使用、 甚至无法安装。
具体地, 参见图 1和图 2所示, 图 1和图 2显示作为示例的一种型号的泵车底架 的主视示意图和俯视示意图,从图中可以看到用于安装前部支腿的上、下支腿轴套 102、 用于安装液压缸的液压缸轴套 104、 以及用于安装后部支腿的上、 下支腿轴套 103分别 安装在泵车底架 101的相应轴套安装孔内,这些轴套具有严格的位置精度要求,例如上、 下支腿轴套 102的同轴度要求等, 如果不能满足相应的位置精度要求, 则可能导致支腿 等部件无法安装或使用。 但是, 在现有技术中, 泵车底架上轴套的组装往往并无专门的 工装夹具, 常常依靠人工划线等定位方式完成轴套的定位, 然后将轴套焊接在相应的轴 套安装孔内, 这不但使得轴套的位置精度很难保证, 影响到后续支腿、 液压缸等部件的 安装, 而且轴套的定位组装作业极不方便, 作业难度较大, 组装效率低下。 此外, 尽管 泵车底架 101的箱形结构形状基本类似, 但是由于泵车底架的产品型号较多, 尤其是长 度尺寸变化较大, 这也给设计泵车底架工装夹具带来困难。
由上描述可以看出, 现有技术的缺点在于, 泵车底架的轴套焊接组装作业无专门 的工装夹具, 完全依赖工人的工人技能进行组装, 难以满足图纸要求的轴套定位尺寸, 工人操作水平的高低, 将会影响到轴套的位置精度, 尤其是相关轴套的轴孔同轴度, 导 致后续的支腿、 液压缸等部件无法安装或无法使用。
有鉴于此现有技术的上述缺陷, 需要设计一种专门的泵车底架工装夹具, 以用于 相对精确地定位组装轴套。 发明内容
本发明所要解决的技术问题是提供一种用于定位和组装轴套的泵车底架工装夹 具, 该泵车底架工装夹具不仅能够相对精确地实现泵车底架轴套的定位组装作业, 而且 在其调节范围内能够适用于多种型号的泵车底架的轴套组装作业。
为了解决上述技术问题, 本发明提供一种用于定位和组装轴套的泵车底架工装夹 具, 其中, 该泵车底架工装夹具包括平台, 该平台的顶面上沿纵向方向对称安装有两侧 前支腿轴套定位装置和两侧后支腿轴套定位装置, 并且该平台的顶面上还设置有用于支 撑所述泵车底架并调节该泵车底架高度位置的支撑调节装置,各个所述前支腿轴套定位 装置与同侧的所述后支腿轴套定位装置之间的间距能够沿所述平台的纵向方向调节,各 个所述前、后支腿轴套定位装置分别包括用于***到所述泵车底架的支腿轴套安装孔内 的定位芯轴、 用于穿套在所述定位芯轴上并与该定位芯轴的外周面配合的定位套组件、 以及用于在所述定位芯轴下端部分支撑该定位芯轴的底部定位盘组件,所述定位套组件 中的各个定位件能够与安装在所述支腿轴套安装孔内的相应支腿轴套的轴套通孔配合 以定位该支腿轴套。
具体选择地, 所述支撑调节装置包括沿所述平台的纵向方向对称设置在所述平台 顶面上的数个等高支撑座以及邻近于各个所述等高支承座设置在所述平台的顶面上的 数个千斤顶。
进一步地, 所述泵车底架工装夹具还包括沿所述平台的纵向方向对称安装在所述 平台顶面上的液压缸轴套定位装置,所述液压缸轴套定位装置在沿所述平台的纵向方向 上位于所述前支腿轴套定位装置和后支腿轴套定位装置之间。
具体地, 各个所述液压缸轴套定位装置包括支承基座、 用于与液压缸轴套的轴套 通孔配合以定位该液压缸轴套的定位销、 定位顶套以及定位隔套, 所述支承基座包括安 装在所述平台顶面上的基座底板以及位于该基座底板上方的支承板,该支承板上具有与 所述定位销配合的定位销孔,所述定位顶套和定位隔套能够穿套在所述定位销上并与该 定位销的外周面配合。
优选地, 所述支承基座的支承板在所述基座底板的上方相对于该基座底板凸出延 伸。
优选地, 所述后支腿轴套定位装置固定在所述平台的顶面上, 所述前支腿轴套定 位装置安装在所述平台的顶面上并能够沿着该平台的纵向方向改变定位位置以调节所 述前支腿轴套定位装置与后支腿轴套定位装置之间的间距。 具体选择地, 各个所述前、 后支腿轴套定位装置分别还包括定位装置基座, 该定 位装置基座具有安装底板, 并且该定位装置基座的顶部安装有具有芯轴配合孔的定位 板。
优选地, 所述定位板通过螺栓固定在所述定位装置基座的顶部, 并通过定位插销 定位。
具体选择地, 所述定位套组件中的定位件包括三个轴套定位凸盘和定位套, 各个 所述轴套定位凸盘具有凸出部分并且该凸出部分能够伸入到所述支腿轴套的轴套通孔 内, 所述凸出部分的外周面能够与所述支腿轴套的轴套通孔的内周面配合, 以定位相应 的所述支腿轴套。
具体选择地, 所述定位盘组件包括定位盘基座、 底部定位盘以及定位间隔套, 所 述定位盘基座安装在所述定位装置基座的安装底板上,该定位盘基座具有用于放置所述 底部定位盘的定位盘放置孔, 所述底部定位盘具有上凸台、 定位盘主体以及下凸台, 并 形成有贯穿所述上凸台、 定位盘主体以及下凸台的芯轴***孔, 所述定位间隔套能够插 套在所述上凸台上并与该上凸台的外周面配合, 并且该定位间隔套的外周面能够与所述 支腿轴套的轴套通孔的内周面配合,所述下凸台能够***配合到所述定位盘基座的定位 盘放置孔内, 所述定位芯轴的下端部分的直径小于该定位芯轴的主体部分, 以使得该定 位芯轴形成为阶梯轴,该定位芯轴的下端部分能够***到所述芯轴***孔内并与该芯轴 ***孔配合, 以通过所述上凸台的顶面支撑所述定位芯轴的阶梯台阶面。
更具体地, 所述底部定位盘的下凸台的外周面上安装有或形成有平键, 所述定位 盘基座的定位盘放置孔的内周面上形成有与该平键配合的键槽,所述下凸台在***配合 到所述定位盘放置孔内的状态下通过该平键和键槽的配合而定位。
优选地, 所述定位板上的芯轴配合孔的圆心轴线相对于所述定位板的对称中心线 具有偏移值,所述底部定位盘上的芯轴***孔的圆心轴线相对于该底部定位盘的圆心轴 线具有所述偏移值, 所述定位盘基座的定位盘放置孔的内周面上对称形成有所述键槽。
优选地, 所述前、 后支腿轴套定位装置还分别包括用于检测所述支腿轴套安装孔 的孔径检测套, 该孔径检测套能够穿套所述定位芯轴上并与该定位芯轴的外周面配合。
优选地, 所述平台的顶面上沿该平台的纵向方向对称安装有滑轨, 各个所述前支 腿轴套定位装置分别安装在相应的滑台上,各个所述滑台的底部具有与对应的所述滑轨 滑动配合的滑座。
进一步优选地, 所述平台的顶面两侧纵向边缘上还对称安装有多个插销机构, 各 个所述插销机构分别包括固定插销,各个所述滑台上具有用于***所述固定插销的插销 孔。
更优选地, 所述平台的顶面上还对应于各个所述滑台安装有压条, 各个所述压条 形成有 T形槽, 各个所述 T形槽安装有压紧螺栓, 各个所述滑台上形成有滑台开口槽, 所述压紧螺栓的螺栓头位于所述 T形槽内,并且所述压紧螺栓的螺杆部分穿过相应的所 述滑台上的滑台开口槽并螺纹配合有螺母。
进一步优选地, 各个所述滑台上还形成有螺纹孔, 该螺纹孔内安装有支撑螺杆。 具体选择地, 各个所述滑台上安装有两个所述支撑螺杆, 该支撑螺杆相对于各个 所述滑台开口槽对称布置。
通过上述技术方案, 本发明的用于定位和组装轴套的泵车底架工装夹具能够用于 多种型号的泵车底架的轴套焊套组装, 其能够提高焊接质量、 降低变形超差、 提高工作 效率,各个所述前支腿轴套定位装置与其同侧的所述后支腿轴套定位装置之间的间距能 够沿所述平台的纵向方向调节 (例如通过滑轨), 其增加了工装在长度方向的可调性, 实现不同长度尺寸的泵车底架在同一泵车底架工装夹具上焊接组套,使得整个工装可调 性简单、 便捷, 位置固定精确。 此外, 在其它优选实施方式下, 例如定位芯轴的顶端设 计有吊环螺栓, 从而通过吊具就能方便的实现芯轴的插拔功能; 左右两侧前支腿轴套定 位装置纵向中心线相对于平台纵向中心线的偏移值、底部定位盘上的芯轴***孔和定位 板上的芯轴配合孔的偏移值, 都是根据实际生产型号的泵车底架整体计算得来, 这样就 使得整套工装具有更加广泛的适用性, 工人只需进行轻松调整安装方向, 就能运用到相 应外形尺寸的泵车底架的组套焊接上, 增加了通用性。
本发明的其他特征和优点将在随后的具体实施方式部分予以详细说明。 附图说明
下列附图用来提供对本发明的进一步理解, 并且构成说明书的一部分, 其与下述 的具体实施方式一起用于解释本发明,但本发明的保护范围并不局限于下述附图及具体 实施方式。 在附图中:
图 1和图 2分别为作为示例的一种型号的泵车底架的主视示意图和俯视示意图。 图 3 为本发明具体实施方式的用于定位和组装轴套的泵车底架工装夹具的主视示 意图, 为了清楚显示该泵车底架工装夹具的结构, 图中局部采用了剖视显示形式。
图 4为图 3所示的用于定位和组装轴套的泵车底架工装夹具的俯视示意图, 为了 清楚显示该泵车底架工装夹具的结构, 图中局部采用了剖视显示形式, 并且其中省略了 等高支撑座和千斤顶。
图 5和图 6分别为图 3所示的处于作业状态的泵车底架工装夹具的主视参考示意 图和俯视参考示意图, 其中所述泵车底架工装夹具上定位有泵车底架, 图中显示了两种 不同型号的泵车底架, 以说明本发明的泵车底架工装夹具能够用于不同型号的泵车底架 的组装作业,为了清楚显示该泵车底架工装夹具的结构,图中局部采用了剖视显示形式。
图 7为沿图 6中 A方向观察的局部示意图, 图中采取了局部剖视的显示形式。 图 8 为本发明具体实施方式的泵车底架工装夹具的前支腿轴套定位装置的结构示 意图, 其中采取了局部剖视的显示形式, 并且定位芯轴上定位有以双点划线形式显示的 前支腿轴套。
图 9为图 8所示的前支腿轴套定位装置中的定位板的俯视示意图。
图 10为图 8所示的前支腿轴套定位装置中的定位盘基座的俯视示意图。
图 11为图 8所示的前支腿轴套定位装置中的底部定位盘的剖视结构示意图。
图 12为沿图 11中的 B方向观察的结构示意图。
图 13 为图 8 中所述前支腿轴套定位装置的底部定位盘组件的局部放大安装示意 图 14为本发明具体实施方式的泵车底架工装夹具的液压缸轴套定位装置中的支承 基座的结构示意图。
图 15为本发明具体实施方式的泵车底架工装夹具的液压缸轴套定位装置的结构示 附图标记说明:
1平台; 2前支腿轴套定位装置;
3液压缸轴套定位装置; 4后支腿轴套定位装置;
5千斤顶; 6等高支撑座;
7滑轨; 8插销机构;
9平台纵向中心线; 10 滑台开口槽;
11前支腿轴套定位装置纵向中心线;
12支承基座 13定位销;
14定位顶套 15定位隔套;
16固定插销 17压条; 18支撑螺杆; 19压紧螺栓;
20滑台;
21定位装置基座; 22定位板;
23定位插销; 24吊环螺栓;
25定位芯轴; 26轴套定位凸盘;
27定位套; 28定位盘基座;
29底部定位盘; 30定位间隔套;
31孔径检测套; 32平键;
33定位板对称中心线; 34芯轴孔中心;
35键槽; 36连接键安装螺纹孔;
37芯轴***孔; 101泵车底架;
102支腿轴套; 103支腿轴套;
104液压缸轴套; 105泵车底架;
M偏移值。 具体实施方式
以下结合附图对本发明的具体实施方式进行详细说明, 应当理解的是, 此处所描 述的具体实施方式仅用于说明和解释本发明,本发明的保护范围并不局限于下述的具体 实施方式。
首先需要说明的是, 在以下的说明中, 本发明的用于定位和组装轴套的泵车底架 工装夹具 (以下简称为 "泵车底架工装夹具") 的平台的长度方向为 "纵向方向", 在图 3至图 6中所述平台的左端为 "前端", 右端为 "后端", 相应地泵车底架在所述平台上 定位时, 泵车底架 101的前部位于平台 1上表面的前部部分, 后部位于平台 1上表面的 后部部分。
另外, 本发明的泵车底架工装夹具在其调节范围内可以适用于多种型号的泵车底 架的轴套组装作业, 这主要是根据生产实践中泵车底架的具体生产实际而言的, 而并非 是说本发明的泵车底架工装夹具能够普遍地适用于任何设计形式的泵车底架的轴套组 装定位作业。 具体地, 图 1和图 2显示作为示例的一种型号的泵车底架的主视示意图和 俯视示意图, 需要注意的是, 尽管图 1和图 2中显示该型号的泵车底架 101包括液压缸 轴套安装孔, 但是对于其它一些泵车底架而言, 例如采用摆动式支腿的泵车底架是不需 要在泵车底架上安装该液压缸的, 因此也就不需要在这些泵车底架上组装液压缸轴套 104。 同时, 在生产实践中, 同一厂家生产的不同型号的泵车底架, 如果需要安装液压 缸轴套 104, 泵车底架上的液压缸轴孔安装孔的位置一般也是固定的, 即相对于泵车底 架 101上的后支腿轴套安装孔的位置是固定的。 另外, 在生产实践中, 同一厂家生产的 不同型号的泵车底架的主要变化在于泵车底架的长度尺寸的变化,泵车底架的后支腿轴 套安装孔的位置一般固定以作为基准孔, 当泵车底架的长度尺寸变化时, 后支腿轴套安 装孔与前支腿轴套安装孔之间的距离会具有变化, 但左、 右侧的前支腿轴套安装孔之间 以及左、右侧的后支腿轴套安装孔之间的间距对于同一系列型号的泵车底架是保持不变 的, 当然不同系列型号的泵车底架会有变化, 但变化比较小。 上述生产实践中的状况使 得能够设计出一种可以适用于多种型号的泵车底架工装夹具。
以下参照图 3至图 15描述本发明泵车底架工装夹具的具体实施方式, 首先说明本 发明的泵车底架工装夹具的基本实施方式,在此基础上进一步描述本发明泵车底架工装 夹具的更优选结构的优选实施方式以及一些简单变型方式。
参见图 3和图 4所示, 本发明基本实施方式的泵车底架工装夹具包括平台 1, 该平 台 1的顶面上沿纵向方向对称安装有两侧前支腿轴套定位装置 2和两侧后支腿轴套定位 装置 4, 并且该平台 1的顶面上还设置有用于支撑所述泵车底架 101并调节该泵车底架 101高度位置的支撑调节装置, 各个所述前支腿轴套定位装置 2与其同侧的所述后支腿 轴套定位装置 4之间的间距能够沿所述平台 1的纵向方向调节, 并且所述前、 后支腿轴 套定位装置 2的结构相同, 各个所述前、 后支腿轴套定位装置 2, 4分别包括用于*** 到所述泵车底架 101的支腿轴套安装孔内的定位芯轴 25、 用于穿套在所述定位芯轴 25 上并与该定位芯轴 25的外周面配合的定位套组件、 以及用于在所述定位芯轴 25下端部 分支撑该定位芯轴 25 的底部定位盘组件, 所述定位套组件中的各个定位件能够与安装 在所述支腿轴套安装孔内的相应支腿轴套 102, 103 的轴套通孔配合以定位该支腿轴套 102, 103。
通过本发明上述基本实施方式的泵车底架工装夹具, 由于该泵车底架工装夹具包 括平台 1、前后支腿轴套定位装置 2, 4以及支撑调节装置, 并且各个前、后支腿轴套定 位装置 2, 4均包括用于定位轴套的定位芯轴 25、 定位套组件以及定位盘组件, 因此能 够有效地对泵车底架 101进行定位组装。 同时, 由于前支腿轴套定位装置 2与后支腿轴 套定位装置 4之间的间距能够调节, 因此该基本实施方式的泵车底架工装夹具至少能够 用于组装长度尺寸变化的不同型号的泵车底架 101, 105。 对于本领域技术人员而言, 在上述基本实施方式的泵车底架工装夹具的技术构思 范围内, 可以具有多种更加具体的优选实施方式或简单变型方式, 以下予以说明。
其一, 在上述基本实施方式中, 平台 1是本发明泵车底架工装夹具的载体, 其顶面 保证一定的平面度即可, 本发明对其结构不作具体限定。 平台 1可以采用各种适合的材 料制造, 只要保证支撑强度即可, 从制造和成本角度而言, 平台 1可以为铸铁平台。
其二, 上述的支撑调节装置主要用于支撑并调节泵车底架 101或 105的高度位置, 以使得泵车底架基本水平地支承在平台 1的顶面的上方, 对于本领域技术人员, 这可以 通过多种公知技术手段实现。 例如, 参见图 3所示, 所述支撑调节装置包括沿所述平台 的纵向方向对称设置在所述平台顶面上的数个等高支撑座 6, 图 3中显示有四个等高支 承座 6, 显然地, 各个等高支撑座 6的高度相同, 以用于支撑泵车底架 101, 由于泵车 底架 101的形状具有一定的不规则性, 因此泵车底架 101在等高支撑座 6上常常具有倾 斜现象, 因此, 所述支撑调节装置还包括邻近于各个所述等高支承座 6设置在所述平台 1的顶面上的数个千斤顶 5, 即这些千斤顶 5分别对应于相应的所述等高支承座 68, 千 斤顶为自制件, 通过 T型螺纹实现可调。 这样, 当泵车底架 1的某一部分出现倾斜不平 时, 可以通过千斤顶 5进行调节。
其三, 由于一些型号的泵车底架 101需要安装液压缸, 即这些型号的泵车底架 101 上具有液压缸轴套安装孔, 从而需要在左、 右侧液压缸轴套安装孔内安装液压缸轴套
104, 因此, 优选地, 本发明的泵车底架工装夹具还包括沿所述平台 1 的纵向方向对称 安装在所述平台 1顶面上的液压缸轴套定位装置 3, 所述液压缸轴套定位装置 3在沿所 述平台的纵向方向上位于所述前支腿轴套定位装置 2和后支腿轴套定位装置 4之间。对 于本领域技术人员而言, 液压缸轴套定位装置 3主要用于定位并组装液压缸轴套 104, 其可以具有多种具体结构, 例如, 参见图 3、 图 14和图 15所示, 各个所述液压缸轴套 定位装置 3包括支承基座 12、用于与液压缸轴套 104的轴套通孔配合以定位该液压缸轴 套 104的定位销 13、 定位顶套 14以及定位隔套 15, 所述支承基座 12包括可拆卸地安 装在所述平台 1顶面上的基座底板以及位于该基座底板上方的支承板,该支承板上具有 与所述定位销 13配合的定位销孔, 所述定位顶套 14和定位隔套 15能够穿套在所述定 位销 13上并与该定位销 13的外周面配合。 在使用状态下, 定位顶套 14用于支撑在所 述支承基座 12的支承板上, 然后依次层叠安装下液压缸轴套 104 (安装于泵车底架 101 的下液压缸轴套安装孔内)、 定位隔套 15以及上液压缸轴套 104 (安装于泵车底架 101 的上液压缸轴套安装孔内), 然后将定位销 13从上向下依次***上液压缸轴套 104、 定 位隔套 15、 下液压缸轴套 104、 定位顶套 14以及支承基座 13的支承板的定位销孔内, 从而起到定位作用。 也就是说, 支承基座 12例如通过螺栓固定在平台 1上, 采用定位 顶套 14支撑下液压缸轴套 104以使得该下液压缸轴套 104的高度确定,定位隔套 15装 在上下两个液压缸轴套之间; 上下两个液压缸轴套的位置均通过定位销 13定位。 参见 图 14所示, 由于在实际安装过程中, 支承基座 12的基座底板往往与平台 1上的其它部 件(例如下述的滑轨), 因此优选地, 支承基座 12的结构形成为偏移式结构, 即所述支 承基座 12的支承板相对于所述基座底板凸出延伸, 以使得基座底板能够避开平台 1上 相干涉的其它部件 (例如滑轨), 同时又能保证定位销孔的位置。
其四, 如上所述, 各个所述前支腿轴套定位装置 2与其同侧的所述后支腿轴套定位 装置 4之间的间距能够沿所述平台 1的纵向方向调节, 也就是说, 前支腿轴套定位装置 2与后支腿轴套定位装置 4之间的间距是可以变化的,由于在生产实践中,泵车底架 101 上的后支腿轴套安装孔一般位置固定, 通常作为基准孔, 因此, 优选地, 所述后支腿轴 套定位装置 4固定(例如通过螺栓等)在所述平台 1的顶面上, 所述前支腿轴套定位装 置 2安装在所述平台 1的顶面上并能够沿着所述平台 1的纵向方向改变定位位置以调节 所述前支腿轴套定位装置 2与后支腿轴套定位装置 4之间的间距。 当然, 本发明并不局 限于此, 后支腿轴套定位装置 4能够改变安装位置也属于本发明的保护范围。
其五, 在本发明的技术构思范围内, 由于前支腿轴套定位装置 2与后支腿轴套定 位装置 4均用于定位相应的支腿轴套,例如前部的支腿轴套 102和后部的支腿轴套 104, 因此前支腿轴套定位装置 2与后支腿轴套定位装置 4的结构是相同的。 如上所述, 各个 前、 后支腿轴套定位装置 2, 4分别包括定位芯轴 25、 定位套组件以及定位盘组件, 所 述定位套组件中的各个定位件能够与安装在所述支腿轴套安装孔内的相应支腿轴套 102, 103的轴套通孔配合以定位该支腿轴套 102, 103。
对于本领域技术人员而言, 在上述基本实施方式的技术构思范围内, 其能够想到 通过定位芯轴 25、定位套组件以及定位盘组件对上、下支腿轴套进行定位的多种具体结 构。 例如, 参见图 8至图 13所示, 各个所述前、 后支腿轴套定位装置 2, 4分别包括定 位装置基座 21,该定位装置基座 21具有安装底板,并且该定位装置基座 21的顶部安装 有具有芯轴配合孔的定位板 22, 所述定位套组件中的定位件包括三个轴套定位凸盘 26 和定位套 27, 各个所述轴套定位凸盘 26和定位套 27能够穿套在所述定位芯轴 25上并 与该定位芯轴 25的外周面配合,各个所述轴套定位凸盘 26具有凸出部分并且该凸出部 分能够伸入到所述支腿轴套 102的轴套通孔内,所述凸出部分的外周面能够与所述支腿 轴套 102的轴套通孔的内周面配合, 以定位相应的上、 下支腿轴套 102; 所述定位盘组 件包括定位盘基座 28、 底部定位盘 29以及定位间隔套 30, 所述定位盘基座 28安装在 所述定位装置基座 21的安装底板上,该定位盘基座 28具有用于放置所述底部定位盘 29 的定位盘放置孔, 所述底部定位盘 29具有上凸台、 定位盘主体以及下凸台, 并形成有 贯穿所述上凸台、 定位盘主体以及下凸台的芯轴***孔 37, 所述定位间隔套 30能够插 套在所述上凸台上并与该上凸台的外周面配合, 并且该定位间隔套 30的外周面能够与 所述支腿轴套 102的轴套通孔的内周面配合,所述下凸台能够***配合到所述定位盘基 座 28的定位盘放置孔内, 所述定位芯轴 25的下端部分的直径小于该定位芯轴 25的主 体部分, 以使得该定位芯轴 25形成为阶梯轴, 该定位芯轴 25的下端部分能够***到所 述芯轴***孔 37内并与该芯轴***孔 37配合, 以通过所述上凸台的顶面支撑所述定位 芯轴 25的阶梯台阶面。 在上述结构中, 更具体地, 底部定位盘 29的下凸台的外周面上 安装有或形成有平键 32, 所述定位盘基座 28的定位盘放置孔的内周面上形成有与该平 键 32配合的键槽 35, 所述下凸台在***配合到所述定位盘放置孔内的状态下通过该平 键 32和键槽 35的配合定位。
在本发明中, 前支腿轴套定位装置纵向中心线 11相对于平台纵向中心线 9的距离 可以根据实际生产的泵车底架进行确定。 在此基础上, 参见图 9、 图 10以及图 12, 上 述定位板 22上的芯轴配合孔的圆心轴线 34相对于所述定位板 22的对称中心线 33具有 偏移值 m, 上述底部定位盘 29上的芯轴***孔 37的圆心轴线相对于该底部定位盘 29 的圆心轴线具有所述偏移值 m, 所述定位盘基座 28的定位盘放置孔的内周面上对称形 成有所述键槽 35, 对于不同的生产厂家上述偏移值 m可以根据情形选择。 这样, 通过 翻转安装所述定位板 22并旋转所述底部定位盘 29, 可以使得本发明的泵车底架工装夹 具能够适用于至少两种不同系列型号的泵车底架。 具体地, 例如, 如果偏移值 m取为 8mm, 当泵车底架 101的左、 右前支腿轴套安装孔之间的间距为 90mm时, 定位板 2可 以安装为使得其芯轴配合孔更加靠***台 1 的平台纵向中心线 9, 同时底部定位盘 29 也安装为使得芯轴***孔 37更加靠***台 1的平台纵向中心线 9,此时两侧的前支腿轴 套定位装置 2上的定位芯轴 25之间的间距例如为 96mm, 则可以适用于泵车底架 101 的左、 右前支腿轴套安装孔之间的间距为 96mm的泵车底架; 而当泵车底架 101的左、 右前支腿轴套安装孔之间的间距为 112mm时, 即泵车底架 101为另一系列型号的泵车 底架时,将定位板 2翻转安装为使得其芯轴配合孔更加远离平台 1的平台纵向中心线 9, 同时底部定位盘 29旋转安装为使得芯轴***孔 37更加远离平台 1的平台纵向中心线 9, 这样两侧的前支腿轴套定位装置 2上的定位芯轴 25之间的间距可以增大为 112mm, 从 而可以适用于例如左、 右前支腿轴套安装孔之间的间距为 112mm的泵车底架。
在上述具体结构的前、 后支腿轴套定位装置的情形下, 例如对前支腿轴套定位装 置 2而言, 在组装过程中具体的安装顺序为将底部定位盘 29***定位盘基座 28内, 然 后依次叠置定位间隔套 30、 前部下支腿轴套 102 (安装于泵车底架 101的前部下支腿轴 套安装孔内)、第一个轴套定位凸盘 26、 定位套 27、第二个轴套定位凸盘 26、前部上支 腿轴套 102 (安装于泵车底架 101 的前部上支腿轴套安装孔内)、 第三个轴套定位凸盘 26, 定位芯轴 25从上向下依次***定位板 22的芯轴配合孔、 第三个轴套定位凸盘 26、 前部上支腿轴套 102、 第二个轴套定位凸盘 26、 定位套 27、 第一个轴套定位凸盘 26、 前部下支腿轴套 102以及底部定位盘 29内, 并通过其下端部分的阶梯台阶面支撑在底 部定位盘 29的顶面上。
此外, 就更具体地结构而言, 例如, 定位装置基座 21可以由多块板焊接成箱型结 构, 其中对于前支腿轴套定位装置 2的定位装置基座 21的安装底板而言, 由于前支腿 轴套定位装置 2需要能够改变位置, 因此其定位装置基座 21的安装底板可以用螺栓固 定在带有滑座的滑台上 (将在下面详细描述), 对于于后支腿轴套定位装置 4的定位装 置基座 21的安装底板而言, 则可以直接通过螺栓固定到平台 1的顶面上。 再如, 定位 板 22—般可以通过螺栓固定在定位装置基座 21的顶部, 并可以通过定位插销 23进行 二次定位, 显然地在此情形下定位装置基座 21的顶部需要形成有相应的插销孔。 又如, 定位芯轴 25的顶端可以设有吊环螺栓 24, 这样定位芯轴的起吊或***更方便。 此外, 所述前、 后支腿轴套定位装置 2, 4还可以分别包括用于检测所述支腿轴套安装孔的孔 径检测套 31, 该孔径检测套 31能够穿套所述定位芯轴 25上并与该定位芯轴 25的外周 面配合。 以在组装轴套之前对泵车底架 101上的支腿轴套安装孔的孔径进行检测, 以确 定是否需要对支腿轴套安装孔进行修整。
其六, 如上所述, 各个所述前支腿轴套定位装置 2与其同侧的所述后支腿轴套定 位装置 4之间的间距能够沿所述平台 1的纵向方向调节,这对于本领域技术人员而言可 以具有多种具体实现的技术手段。 参见图 3、 图 4和图 7所示, 所述平台 1的顶面上沿 该平台 1的纵向方向对称安装有滑轨 7, 各个所述前支腿轴套定位装置 2分别安装在相 应的滑台 20上, 各个所述滑台 20的底部具有与对应的所述滑轨 7滑动配合的滑座。 显 然地, 每侧的滑轨可以包括相对于该侧的前支腿轴套定位装置纵向中心线 11对称的两 根滑轨 7, 相应的米格滑台 20的底部设置有两个滑座。 通过使得滑台 20在滑轨 7上滑 动, 从而使得前支腿轴套定位装置 2的位置改变, 因此各个所述前支腿轴套定位装置 2 与其同侧的所述后支腿轴套定位装置 4之间的间距能够沿所述平台 1的纵向方向调节。 当然, 对于本领域技术人员, 前支腿轴套定位装置 2的安装方式并不限于上述滑轨的方 式, 最简单地, 还可以根据所需组装的不同型号的泵车底架 101的长度, 在平台 1的顶 面上形成对应于不同型号泵车底架 101长度的螺纹安装孔,这样在组装特定型号的泵车 底架时, 将前支腿轴套定位装置 2安装在对应的螺纹安装孔内, 这种简单变型方式也能 够实现调节前支腿轴套定位装置 2的目的, 当然, 本领域技术人员还能够想到其它实施 方式, 只要能够实现前支腿轴套定位装置 2的位置调节即可。
在上述采用滑轨 7的优选实施方式中, 优选地, 所述平台 1 的顶面两侧纵向边缘 上还对称安装有多个插销机构 8, 各个所述插销机构 8分别包括固定插销 16, 各个所述 滑台 20上具有用于***所述固定插销 16的插销孔。 这样, 当滑台 20带动前支腿轴套 定位装置 2滑动到对应于相应型号的泵车底架的组装位置时, 可以通过相应插销机构 8 的固定插销 16将滑台 20锁定。
为了防止仅通过固定插销 16锁定不可靠, 优选地, 所述平台 1的顶面上还对应于 各个所述滑台 20安装有压条 17, 各个所述压条 17形成有 T形槽, 各个所述 T形槽安 装有压紧螺栓 19, 各个所述滑台 20上形成有滑台开口槽 10, 所述压紧螺栓 19的螺栓 头位于所述 T形槽内,并且所述压紧螺栓 19的螺杆部分穿过相应的所述滑台 20上的滑 台开口槽 10并螺纹配合有螺母。 这样, 当需要滑动滑台 20时, 可以将螺母松开滑动滑 台 20, 当滑台 20滑动到要求的位置时, 在固定插销 16锁定后, 通过紧固螺母, 可以进 一步可靠地固定滑台 20。
此外, 为了增强滑台 20的稳定性, 各个所述滑台 20上还形成有螺纹孔, 该螺纹 孔内安装有支撑螺杆 18, 优选地, 各个所述滑台 20上安装有两个所述支撑螺杆 18, 该 支撑螺杆 18相对于各个所述滑台开口槽 10对称布置。当滑台 20滑动到要求的位置时, 通过拧旋支撑螺杆 18, 而使得支撑螺杆 18支撑在平台 1 的顶面上, 从而增加滑动 20 的支撑刚度, 增强其稳定性。
以上描述了本发明的泵车底架工装夹具的一些具体结构的优选实施方式以及简单 变型方式, 为帮助本领域技术人员更加深刻地理解本发明的技术方案, 以下结合图 3至 图 15所示的本发明优选结构的泵车底架工装夹具来说明各个部件所要实现的功能, 并 附带性地简略描述其操作过程。
具体地, 四个等高支撑座 6设置在平台 1的四个方向, 同方向还设置有千斤顶 5, 当发现泵车底架 101或 105有任何一角倾斜时, 转动相应方位的千斤顶 5的手柄, 调整 泵车底架的高度, 使泵车底架放置在最佳组装位置; 后支腿轴套定位装置 4固定在平台 1上, 位置为不可调, 当不同型号的泵车底架放在平台上需要进行组套时, 以后支腿轴 套定位装置 4为基准, 调整前支腿轴套定位装置 2, 即使得上述滑台 20滑动; 通过设计 好的插销机构 8的位置, 根据相应型号的泵车底架, 采用对应位置的插销机构 8的固定 插销 16,以对前支腿轴套定位装置 2进行位置确定,将插销 16***滑台 20的插销孔内; 前支腿轴套定位装置 2的位置确定好后,将压紧螺栓 19的螺栓头放置在压条 17的 T形 槽内, 并将压紧螺栓 19的螺杆部分滑入滑台 20的滑台开口槽 10内, 拧紧压紧螺栓上 的螺母, 使其位置完全固定; 滑台 20在进行单点固定的同时, 为防止单点受力产生变 形, 在压紧螺栓 10的左右两位置处, 通过支撑螺杆 18进行支撑, 在支撑螺杆 19支撑 作用下, 始终使滑台 20与平台 1保持水平位置。
前支腿轴套定位装置 2的功能具体为: 前支腿轴套定位装置纵向中心线 11即为相 应的滑台 20的纵向中心线。 显然地, 平台 1纵向两侧的前支腿轴套定位装置 2的纵向 中心线 11相对于平台纵向中心线对称; 定位盘基座用螺栓装在前端轴套定位装置中心 线上的基座上;两侧的前支腿轴套定位装置 2的纵向中心线 11相对于平台纵向中心线 9 的偏移量、底部定位盘 29上的芯轴***孔的偏移值、 定位板 22上的芯轴配合孔的偏移 值, 可以根据所需生产的产品型号进行确定; 当泵车底架 101的左右两侧支腿轴套安装 孔的中心相对于同侧的前支腿轴套定位装置纵向中心线向平台纵向中心线 9偏移时,使 得两侧定位板 22的芯轴配合孔和底部定位盘 29的芯轴***孔相对靠近于平台纵向中心 线 9, 而分别装于定位装置基座 21的顶部和放置在定位盘基座 28的定位盘放置孔内; 反之将两侧定位板的芯轴配合孔和底部定位盘的芯轴***孔相对远离平台纵向中线线, 分别装于定位装置基座 21的顶部和放置在定位盘基座 28的定位盘放置孔内; 定位盘基 座 28的定位盘放置孔内对称开有键槽孔, 可实现底部定位盘 29上述两种形式的安装, 只要将底盘定位盘 29旋转 180度即可, 定位板 22由于是对称的, 翻转安装即可。
通过***定位芯轴 25, 定位芯轴 25的中心为泵车底架的上、 下支腿轴套的中心, 定位芯轴位置的固定,可实现支腿轴套位置的固定。具体地,装套前,先对泵车底架 101 上的上下支腿轴套安装孔的孔径进行检测, 孔径检测套 31 的外径等于支腿轴套安装孔 的孔径, 当发现孔径外形有偏移, 需对此进行修磨, 修磨完成后取出外径测量套; 吊出 定位芯轴 25—部分,按从下到上的顺序分别装入前部的下支腿轴套 102、第一个轴套定 位凸盘 26、 定位套 27、 第二个轴套定位凸盘 26、 前部的上底架轴套 102、 第三个轴套 定位凸盘 26; 进而***定位芯轴 26, 将前部的上下支腿轴套的中心位置固定好, 参见 图 13所示, 底部定位盘 29的上凸台上套设的定位间隔套 30的外径等于前部的下支腿 轴套的内径, 前部的下支腿轴套的底部放置在底部定位盘 29上, 通过定位间隔套 30将 一端固定, 另一端用上述第一轴套定位凸盘 26固定; 公知地, 泵车底架的一侧的支腿 轴套均为上下分布结构 (前部支腿轴套、 后部支腿轴套以及液压缸轴套均是如此), 当 前部的下支腿轴套位置固定好后, 定位套 27用来定位前部的上支腿轴套; 上述第二个 上端轴套定位凸盘的一端分别***前部的上支腿轴套的轴套通孔内,进而通过定位芯轴 25从上向下依次***定位板 22的芯轴配合孔、 第三个轴套定位凸盘 26、 前部上支腿轴 套 102、 第二个轴套定位凸盘 26、 定位套 27、 第一个轴套定位凸盘 26、 前部下支腿轴 套 102以及底部定位盘 29内, 对前部的上下支腿轴套进行定位; 相关轴孔定位的公差 等级一般为 IT7~9级, 这种高精度的轴孔配合, 可防止中心位置偏移量过大, 很好地保 证了上下支腿轴套的同心度在允许范围内, 并使得一侧的支腿轴套的中心相对于整体底 架的位置偏差在允许范围内。
后支腿轴套定位装置 4的操作原理以及过程与前支腿轴套定位装置 2除了无需移 动外基本相似, 不再赘述;
同样, 液压缸轴套定位装置 3 也是通过定位销来确定液压缸轴套的中心位置。 定 位顶套 14确定下部液压缸轴套的高度,定位隔套 15确定两液压缸轴套之间的距离和上 液压缸轴套的高度, 并从上向下依次***上液压缸轴套 104、 定位隔套 15、 下液压缸轴 套 104、 定位顶套 14以及支承基座 13的支承板的定位销孔内, 从而起到定位作用。
由上描述可以看出, 本发明了提供一种用于定位和组装轴套的泵车底架工装夹具, 其优点在于能够用于多种型号的摆腿式泵车底架的轴套焊套组装以及相应型号的伸縮 支腿式泵车底架的液压缸轴套的焊接组装, 其能够提高焊接质量、 降低变形超差、 提高 工作效率,各个所述前支腿轴套定位装置 2与其同侧的所述后支腿轴套定位装置 4之间 的间距能够沿所述平台 1 的纵向方向调节 (例如通过滑轨), 增加了工装在长度方向的 可调性, 实现不同长度尺寸的泵车底架在同一泵车底架工装夹具上焊接组套, 使得整个 工装可调性简单、 便捷, 位置固定精确。 此外, 在优选方式下, 定位芯轴的顶端设计有 吊环螺栓, 从而通过吊具就能方便的实现芯轴的插拔功能; 左右两侧前支腿轴套定位装 置纵向中心线相对于平台纵向中心线的偏移值、底部定位盘上的芯轴***孔和定位板上 的芯轴配合孔的偏移值, 都是根据实际生产型号的泵车底架整体计算得来, 这样就使得 整套工装具有更加广泛的适用性, 工人只需进行轻松调整安装方向, 就能运用到相应外 形尺寸的泵车底架的组套焊接上, 增加了通用性。
以上结合附图详细描述了本发明的优选实施方式, 但是, 本发明并不限于上述实 施方式中的具体细节, 在本发明的技术构思范围内, 可以对本发明的技术方案进行多种 简单变型, 这些简单变型均属于本发明的保护范围。
另外需要说明的是, 在上述具体实施方式中所描述的各个具体技术特征, 在不矛 盾的情况下, 可以通过任何合适的方式进行组合。 为了避免不必要的重复, 本发明对各 种可能的组合方式不再另行说明。
此外, 本发明的各种不同的实施方式之间也可以进行任意组合, 只要其不违背本 发明的思想, 其同样应当视为本发明所公开的内容。

Claims

权利要求
1、 用于定位和组装轴套的泵车底架工装夹具, 其中, 该泵车底架工装夹具包括平 台 (1 ), 该平台的顶面上沿纵向方向对称安装有两侧前支腿轴套定位装置 (2)和两侧后 支腿轴套定位装置(4),并且该平台(1 )的顶面上还设置有用于支撑所述泵车底架(101 ; 105) 并调节该泵车底架 (101 ; 105) 高度位置的支撑调节装置,
各个所述前支腿轴套定位装置 (2) 与同侧的所述后支腿轴套定位装置 (4) 之间的 间距能够沿所述平台 (1 ) 的纵向方向调节, 各个所述前、 后支腿轴套定位装置 (2, 4) 分别包括用于***到所述泵车底架 (101 ; 105) 的支腿轴套安装孔内的定位芯轴 (25)、 用于穿套在所述定位芯轴 (25) 上并与该定位芯轴 (25) 的外周面配合的定位套组件、 以及用于在所述定位芯轴 (25) 下端部分支撑该定位芯轴 (25) 的底部定位盘组件, 所 述定位套组件中的各个定位件能够与安装在所述支腿轴套安装孔内的相应支腿轴套 ( 102; 103) 的轴套通孔配合以定位该支腿轴套 (102; 103)。
2、 根据权利要求 1 所述的泵车底架工装夹具, 其中, 所述支撑调节装置包括沿所 述平台 (1 ) 的纵向方向对称设置在所述平台顶面上的数个等高支撑座 (6) 以及邻近于 各个所述等高支承座 (6) 设置在所述平台 (1 ) 的顶面上的数个千斤顶 (5)。
3、 根据权利要求 1 所述的泵车底架工装夹具, 其中, 所述泵车底架工装夹具还包 括沿所述平台 (1 ) 的纵向方向对称安装在所述平台 (1 ) 顶面上的液压缸轴套定位装置 (3), 所述液压缸轴套定位装置(3)在沿所述平台的纵向方向上位于所述前支腿轴套定 位装置 (2) 和后支腿轴套定位装置 (4) 之间。
4、 根据权利要求 3所述的泵车底架工装夹具, 其中, 各个所述液压缸轴套定位装 置 (3)包括支承基座 (12)、 用于与液压缸轴套 (104) 的轴套通孔配合以定位该液压缸 轴套 (104) 的定位销 (13)、 定位顶套 (14) 以及定位隔套 (15), 所述支承基座 (12) 包括安装在所述平台 (1 )顶面上的基座底板以及位于该基座底板上方的支承板, 该支承 板上具有与所述定位销 (13) 配合的定位销孔, 所述定位顶套 (14) 和定位隔套 (15 ) 能够穿套在所述定位销 (13) 上并与该定位销 (13) 的外周面配合。
5、 根据权利要求 4所述的泵车底架工装夹具, 其中, 所述支承基座 (12) 的支承 板在所述基座底板的上方相对于该基座底板凸出延伸。
6、根据权利要求 1所述的泵车底架工装夹具, 其中, 所述后支腿轴套定位装置(4) 固定在所述平台 (1 ) 的顶面上, 所述前支腿轴套定位装置 (2) 安装在所述平台 (1 ) 的 顶面上并能够沿着该平台 (1 )的纵向方向改变定位位置以调节所述前支腿轴套定位装置 (2) 与后支腿轴套定位装置 (4) 之间的间距。
7、 根据权利要求 6所述的泵车底架工装夹具, 其中, 各个所述前、 后支腿轴套定 位装置 (2, 4) 分别还包括定位装置基座 (21 ), 该定位装置基座 (21 ) 具有安装底板, 并且该定位装置基座 (21 ) 的顶部安装有具有芯轴配合孔的定位板 (22)。
8、 根据权利要求 7所述的泵车底架工装夹具, 其中, 所述定位板 (22) 通过螺栓 固定在所述定位装置基座 (21 ) 的顶部, 并通过定位插销 (23) 定位。
9、 根据权利要求 7所述的泵车底架工装夹具, 其中, 所述定位套组件中的定位件 包括三个轴套定位凸盘 (26)和定位套 (27), 各个所述轴套定位凸盘 (26) 具有凸出部 分并且该凸出部分能够伸入到所述支腿轴套 (102; 103 ) 的轴套通孔内, 所述凸出部分 的外周面能够与所述支腿轴套 (102; 103 ) 的轴套通孔的内周面配合, 以定位相应的所 述支腿轴套。
10、 根据权利要求 9所述的泵车底架工装夹具, 其中, 所述定位盘组件包括定位盘 基座 (28)、 底部定位盘 (29) 以及定位间隔套 (30), 所述定位盘基座 (28) 安装在所 述定位装置基座 (21 ) 的安装底板上, 该定位盘基座 (28 ) 具有用于放置所述底部定位 盘 (29) 的定位盘放置孔, 所述底部定位盘 (29) 具有上凸台、 定位盘主体以及下凸台, 并形成有贯穿所述上凸台、 定位盘主体以及下凸台的芯轴***孔(37), 所述定位间隔套 (30) 能够插套在所述上凸台上并与该上凸台的外周面配合, 并且该定位间隔套 (30) 的外周面能够与所述支腿轴套 (102; 103 ) 的轴套通孔的内周面配合, 所述下凸台能够 ***配合到所述定位盘基座 (28) 的定位盘放置孔内, 所述定位芯轴 (25) 的下端部分 的直径小于该定位芯轴 (25) 的主体部分, 以使得该定位芯轴 (25 ) 形成为阶梯轴, 该 定位芯轴 (25) 的下端部分能够***到所述芯轴***孔 (37) 内并与该芯轴***孔 (27) 配合, 以通过所述上凸台的顶面支撑所述定位芯轴 (25) 的阶梯台阶面。
11、 根据权利要求 10所述的泵车底架工装夹具, 其中, 所述底部定位盘 (29) 的 下凸台的外周面上安装有或形成有平键(32), 所述定位盘基座 (28) 的定位盘放置孔的 内周面上形成有与该平键(32)配合的键槽(35), 所述下凸台在***配合到所述定位盘 放置孔内的状态下通过该平键 (32) 和键槽 (35) 的配合而定位。
12、 根据权利要求 11 所述的泵车底架工装夹具, 其中, 所述定位板 (22) 上的芯 轴配合孔的圆心轴线(34)相对于所述定位板(22)的对称中心线(33)具有偏移值(m), 所述底部定位盘 (29) 上的芯轴***孔 (37) 的圆心轴线相对于该底部定位盘 (29) 的 圆心轴线具有所述偏移值 (m), 所述定位盘基座 (28) 的定位盘放置孔的内周面上对称 形成有所述键槽 (35)。
13、 根据权利要求 1所述的泵车底架工装夹具, 其中, 所述前、 后支腿轴套定位装 置 (2, 4)还分别包括用于检测所述支腿轴套安装孔的孔径检测套 (31 ), 该孔径检测套 (31 ) 能够穿套所述定位芯轴 (25) 上并与该定位芯轴 (25) 的外周面配合。
14、根据权利要求 1至 13中任一项所述的泵车底架工装夹具, 其中, 所述平台(1 ) 的顶面上沿该平台 (1 ) 的纵向方向对称安装有滑轨 (7), 各个所述前支腿轴套定位装置
(2) 分别安装在相应的滑台 (20) 上, 各个所述滑台 (20) 的底部具有与对应的所述滑 轨 (7) 滑动配合的滑座。
15、 根据权利要求 14所述的泵车底架工装夹具, 其中, 所述平台 (1 ) 的顶面两侧 纵向边缘上还对称安装有多个插销机构 (8), 各个所述插销机构 (8)分别包括固定插销
( 16), 各个所述滑台 (20) 上具有用于***所述固定插销 (16) 的插销孔。
16、 根据权利要求 15所述的泵车底架工装夹具, 其中, 所述平台 (1 ) 的顶面上还 对应于各个所述滑台 (20) 安装有压条(17), 各个所述压条(17) 形成有 T形槽, 各个 所述 T形槽安装有压紧螺栓 (19), 各个所述滑台 (20) 上形成有滑台开口槽 (10), 所 述压紧螺栓 (19) 的螺栓头位于所述 T形槽内, 并且所述压紧螺栓 (19) 的螺杆部分穿 过相应的所述滑台 (20) 上的滑台开口槽 (10) 并螺纹配合有螺母。
17、 根据权利要求 15所述的泵车底架工装夹具, 其中, 各个所述滑台 (20) 上还 形成有螺纹孔, 该螺纹孔内安装有支撑螺杆 (18)。
18、 根据权利要求 17所述的泵车底架工装夹具, 其中, 各个所述滑台 (20) 上安 装有两个所述支撑螺杆 (18), 该支撑螺杆 (18)相对于各个所述滑台开口槽 (10)对称 布置。
PCT/CN2012/086111 2012-01-06 2012-12-07 用于定位和组装轴套的泵车底架工装夹具 WO2013102391A1 (zh)

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