CN210615875U - Hydraulic clamp for milling shaft parts - Google Patents
Hydraulic clamp for milling shaft parts Download PDFInfo
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- CN210615875U CN210615875U CN201921168407.XU CN201921168407U CN210615875U CN 210615875 U CN210615875 U CN 210615875U CN 201921168407 U CN201921168407 U CN 201921168407U CN 210615875 U CN210615875 U CN 210615875U
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Abstract
The utility model provides a hydraulically operated fixture for axle type part milling process, include: the clamp bottom plate is connected with the clamp and the positioning key of the machine tool workbench, the clamp bottom plate is used for connecting the clamp side plate, and the clamp hydraulic cylinder is connected with the clamp bottom plate; an oil cylinder cavity is arranged inside the clamp hydraulic cylinder. The fixture hydraulic cylinder is used for installing a fixture hydraulic cylinder base plug; the upper plate of the clamp is in threaded connection with the side plate of the clamp; the clamp cartridge clip body is in threaded connection with the clamp upper plate; the clamp elastic sleeve is arranged in the clamp clip body; the limiting screw of the elastic clamp sleeve of the clamp is arranged in the elastic clamp body of the clamp and extends into the limiting groove at the lower end of the elastic clamp sleeve; the fixture and a machine tool workbench positioning key are arranged on a fixture bottom plate; the elbow oil pipe joint is respectively connected with the clamp hydraulic cylinder, the oil pipe and the nut; the three-way oil pipe joint is respectively connected with the clamp hydraulic cylinder, the oil pipe and the nut; and two ends of the oil pipe and the nut are respectively in threaded connection with the elbow oil pipe joint and the three-way oil pipe joint. The utility model discloses can press from both sides tight corresponding work piece.
Description
Technical Field
The embodiment of the utility model provides a relate to metal cutting technical field, especially relate to a hydraulically operated fixture for axle type part milling process.
Background
At present, in milling of a spline shaft driving key of an Electric Power Steering (EPS) of an automobile, bench vice clamping or chuck clamping is adopted for milling. Firstly, the clamping processing modes are inaccurate in positioning; secondly, the efficiency is low; thirdly, the labor intensity of operators is high; fourthly, the method is not suitable for mass production. In order to improve the production efficiency, the product quality, reduce the labor intensity of operators and adapt to numerical control and mass production, the fixture mechanism for milling the spline shaft driving key of the electric automobile (EPS) steering gear, which is high in precision, practical and efficient, and is controlled by a numerical control system and clamped by a hydraulic system, meets the performance requirements of compact structure, reliable performance, strong clamping force, accurate positioning, convenient production change, high processing efficiency and the like, and becomes a technical problem to be solved urgently in the industry.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a hydraulically operated fixture and method for axle type part milling process to the above-mentioned problem that prior art exists.
In a first aspect, the embodiment of the utility model provides a hydraulically operated fixture for axle type part milling process, include: the clamp comprises a clamp bottom plate, clamp side plates, a clamp hydraulic cylinder, a clamp hydraulic piston rod, a clamp oil cylinder seat plug, a clamp upper plate, a clamp spring clip body, a clamp elastic sleeve, a clamp elastic clip sleeve limiting screw, a clamp and machine tool workbench positioning key, an elbow oil pipe joint, a three-way oil pipe joint, an oil pipe and a nut; the clamp bottom plate is connected with the clamp and the positioning key of the machine tool workbench; the clamp bottom plate is provided with a plurality of screw holes for connecting the clamp side plates; the clamp hydraulic cylinder is connected with the clamp bottom plate; an oil cylinder cavity is formed inside the clamp hydraulic cylinder and used for accommodating the clamp hydraulic piston rod and installing the clamp hydraulic piston rod in the oil cylinder cavity; the clamp hydraulic cylinder is provided with a circumferential inner threaded hole for mounting the clamp hydraulic cylinder seat plug; the clamp upper plate is in threaded connection with the clamp side plates; the clamp cartridge clip body is in threaded connection with the clamp upper plate; the clamp elastic sleeve is arranged in the clamp elastic clip body; the clamp elastic jacket limiting screw is arranged in the clamp elastic jacket body and extends into a limiting groove at the lower end of the clamp elastic jacket; the fixture and the machine tool workbench positioning key are arranged on the fixture bottom plate; the elbow oil pipe joint is respectively connected with the clamp hydraulic cylinder, the oil pipe and the nut; the three-way oil pipe joint is respectively connected with the clamp hydraulic cylinder, the oil pipe and the nut; and two ends of the oil pipe and the nut are respectively in threaded connection with the elbow oil pipe joint and the three-way oil pipe joint.
Further, based on the hydraulic clamp for milling of the shaft parts provided by the above embodiments, the clamp bottom plate is provided with a plurality of screw holes for connecting the clamp side plates, and the hydraulic clamp comprises: two rows of screw holes are oppositely formed on two sides of the clamp bottom plate and used for connecting the clamp side plates.
Further, based on the hydraulic clamp for milling the shaft parts provided by the above embodiment, the upper side and the lower side of the clamp side plate are respectively provided with a row of screw holes.
Further, based on the hydraulic clamp for milling the shaft parts provided by the above embodiment, the hydraulic cylinder of the clamp and the upper and lower oil chambers are respectively provided with an oil inlet and outlet internal thread for connecting with the elbow oil pipe joint or the three-way oil pipe joint.
Further, based on the hydraulic clamp for milling the shaft parts provided by the embodiment, the clamp cylinder seat plug is a through hole multi-step cylinder.
Further, based on the hydraulic clamp for milling the shaft parts provided by the above embodiment, the clamp cartridge clip body is provided with a multi-step cylinder on the outside and a combination of the multi-step cylinder and an inner cone on the inside.
Further, based on the hydraulic clamp for milling the shaft parts provided by the embodiment, the clamp elastic sleeve is a combination of a multi-step cylinder and a slotted cone on the outside, and a multi-step inner cylindrical inner hole on the inside.
The embodiment of the utility model provides a hydraulically operated fixture for axle type part milling process is through placing oil pipe and nut in the location clamping hole of anchor clamps elastic sleeve to axial to oil pipe and nut and radially advance line location, then pour into each hydro-cylinder with hydraulic oil and will move anchor clamps elastic sleeve downstream, tighten up after the outer cone of anchor clamps elastic sleeve contacts with the interior centrum of anchor clamps cartridge clip body, thereby press from both sides tight oil pipe and nut.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description will be given below to the drawings required to be used in the description of the embodiments or the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a hydraulic clamp for milling shaft parts according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a bottom plate of the clamp according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a side plate of a clamp according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a clamp hydraulic cylinder provided in an embodiment of the present invention;
fig. 5 is a schematic structural view of a hydraulic piston rod of a clamp according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a clamp oil cylinder seat plug provided in an embodiment of the present invention;
fig. 7 is a schematic diagram of an upper plate structure of a clamp according to an embodiment of the present invention;
fig. 8 is a schematic structural view of a clip cartridge clip body according to an embodiment of the present invention;
fig. 9 is a schematic structural view of an elastic sleeve of a clamp according to an embodiment of the present invention;
fig. 10 is a schematic structural view of a limiting screw of an elastic clamping sleeve of a clamp according to an embodiment of the present invention;
fig. 11 is a schematic structural view of a positioning key of a fixture and a machine tool workbench according to an embodiment of the present invention;
fig. 12 is a schematic view of an elbow oil pipe joint structure provided in an embodiment of the present invention;
fig. 13 is a schematic view of a three-way oil pipe joint structure provided in an embodiment of the present invention;
fig. 14 is a schematic structural view of an oil pipe and a nut provided in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. In addition, the technical features of the embodiments or individual embodiments provided in the present invention can be arbitrarily combined with each other to form a feasible technical solution, but it must be based on the realization of those skilled in the art, and when the technical solution combination is contradictory or cannot be realized, the technical solution combination should be considered to be absent, and is not within the protection scope of the present invention.
The embodiment of the utility model provides a hydraulically operated fixture for axle type part milling process, see figure 1, this hydraulically operated fixture includes: the clamp comprises a clamp bottom plate 1, clamp side plates 2, a clamp hydraulic cylinder 3, a clamp hydraulic piston rod 4, a clamp cylinder seat plug 5, a clamp upper plate 6, a clamp elastic clamp body 7, a clamp elastic sleeve 8, a clamp elastic clamp sleeve limiting screw 9, a clamp and machine tool workbench positioning key 10, an elbow oil pipe joint 11, a three-way oil pipe joint 12, an oil pipe and a nut 13; wherein, an oil port 14 is arranged on the oil pipe and the nut 13, and an oil port 15 is arranged on the oil pipe and the nut which are not marked below.
The clamp bottom plate 1 is connected with the clamp and a machine tool workbench positioning key 10; the clamp bottom plate 1 is provided with a plurality of screw holes for connecting the clamp side plates 2; the clamp hydraulic cylinder 3 is connected with the clamp bottom plate 1; an oil cylinder cavity is formed inside the clamp hydraulic cylinder 3 and used for accommodating the clamp hydraulic piston rod 4 and installing the clamp hydraulic piston rod 4 in the oil cylinder cavity; the clamp hydraulic cylinder 3 is provided with a circumferential inner threaded hole for mounting the clamp hydraulic cylinder seat plug 5; the clamp upper plate 6 is in threaded connection with the clamp side plate 2; the clamp clip body 7 is in threaded connection with the clamp upper plate 6; the clamp elastic sleeve 8 is arranged in the clamp clip body 7; the clamp elastic jacket limiting screw 9 is installed in the clamp elastic jacket body 7 and extends into a limiting groove at the lower end of the clamp elastic jacket 8; the fixture and machine tool workbench positioning key 10 is arranged on the fixture bottom plate 1; the elbow oil pipe joint 11 is respectively connected with the clamp hydraulic cylinder 3, the oil pipe and the nut 13; the three-way oil pipe joint 12 is respectively connected with the clamp hydraulic cylinder 3, the oil pipe and the nut 13; two ends of the oil pipe and nut 13 are respectively in threaded connection with the elbow oil pipe joint 11 and the three-way oil pipe joint 12;
wherein, place oil pipe and nut 13 in the location clamping hole of anchor clamps elastic sleeve 8, oil pipe and nut 13 axial is realized the location by the contact of the big excircle lower extreme that has processed with the clamping hole lower extreme of anchor clamps elastic sleeve 8, radial is realized the location by the contact of the big excircle that has processed with the installation hole of anchor clamps elastic sleeve 8, the tight button of numerical control system's clamp operation, hydraulic oil gets into each hydro-cylinder through the hydraulic fluid port and moves anchor clamps hydraulic piston rod 4 to the hydro-cylinder below, drive anchor clamps elastic sleeve 8 and remove downwards, thereby the outer cone of anchor clamps elastic sleeve 8 tightens up and presss from both sides oil pipe and nut 13 after contacting with the interior centrum of anchor clamps clip body 7.
On the basis of the above-mentioned embodiment, the embodiment of the utility model provides a hydraulic fixture for axle type part milling process, it has a plurality of screw holes to open on the anchor clamps bottom plate, is used for connecting the anchor clamps curb plate includes: two rows of screw holes are oppositely formed on two sides of the clamp bottom plate and used for connecting the clamp side plates. In particular, see fig. 2. Fig. 2 shows the clamp base plate 1 from three perspectives. The upper left is a top view angle, and 4 screw holes are respectively arranged on the left side and the right side of the clamp bottom plate 1, the screw holes on the left side and the right side correspond to each other one by one, and three screw hole groups which are arranged in a circular ring shape are arranged in the middle; the upper right part is a broadside side view angle, and two exposed screw holes and three screw holes with sectional view angles can be seen; the side view of the long side is shown below, and a plurality of screw holes with sectional views are shown.
On the basis of the above-mentioned embodiment, the embodiment of the utility model provides a hydraulic fixture for axle type part milling process, the upside and the downside of anchor clamps curb plate respectively open and have one row of screw hole. Reference is made in particular to fig. 3, which is a view of the clamp side plate 2 from two viewing angles in fig. 3. The left side is a top view angle, 4 screw holes are respectively arranged at the upper side and the lower side of the clamp side plate 2, and the screw holes at the upper side and the lower side are in one-to-one correspondence; the right side is a side view angle, and a cross-sectional view angle screw hole is visible from the top and the bottom.
On the basis of the above-mentioned embodiment, the embodiment of the utility model provides a hydraulic fixture for axle type part milling process, the anchor clamps pneumatic cylinder, upper and lower oil pocket respectively have an oil internal thread of advancing, be used for with elbow oil pipe connects or tee bend oil pipe articulate. See in particular fig. 4. As can be seen in fig. 4, the internal threads for oil inlet and outlet of the upper and lower oil chambers in the clamp hydraulic cylinder 3 are clearly visible.
The aforementioned clamp hydraulic piston rod 4 can be seen in fig. 5. As can be seen from fig. 5, the clamp hydraulic piston rod 4 has a through hole inside and a multi-step cylinder outside, and the through hole of the clamp hydraulic piston rod 4 is used for allowing the workpiece to pass through.
On the basis of the above-mentioned embodiment, the embodiment of the utility model provides a hydraulic fixture for axle type part milling process, anchor clamps hydro-cylinder seat stopper is through-hole multi-step cylinder. The clamp cylinder base plug 5 can be seen in fig. 6, and the clamp cylinder base plug 5 is a through-hole multi-step cylinder. A group of sealing grooves are used for filling sealing elements in the through holes, a group of sealing grooves are formed in the small cylinder and used for filling the sealing elements, a group of circumferential screw holes are formed in the large cylinder and fixedly connected with the clamp hydraulic oil cylinder through standard screw holes, and a group of circumferential standard internal threads are further formed in the large cylinder and fixedly connected with the clamp base plate through screws.
The aforementioned jig upper plate 6 can be seen in fig. 7. As can be seen in fig. 7, the jig upper plate 6 is a parallel rectangular parallelepiped. And a group of standard countersunk head screw mounting holes are respectively arranged at the two long ends of the parallel cuboid, and are fixedly connected with the side plates of the clamp by standard screws. A group of round holes are formed in the rectangular long central line of the upper clamp plate 6, and a hydraulic piston rod of the clamp can pass through the round holes. And a set of standard internal threads are provided around the circumference of each of the set of holes, and standard screws are used to fasten the clamp cartridge body to the upper plate of the clamp.
On the basis of the embodiment, the embodiment of the utility model provides a hydraulic fixture for axle type part milling process, the anchor clamps cartridge clip body, the outside is the multi-step cylinder, and inside is the combination of multi-step cylinder and inner cone. The clip cartridge body 7 can be seen in fig. 8. As can be seen from fig. 8, the clip cartridge body 7 is a multi-step cylinder on the outside and a multi-step cylinder and inner cone combination on the inside. A group of standard screws for the screw holes of the peripheral counter bores are arranged on the large cylinder of the clamp clip body 7 and are fixedly connected with the upper plate of the clamp, a plurality of step bores and the inner cone of the clamp clip body 7 are used for installing the clamp elastic sleeve, and a group of symmetrical standard countersunk head internal threads are arranged at the lower end of the small cylinder of the clamp clip body 7 and are used for installing the standard screws to limit the vertical position of the clamp elastic sleeve. A group of through holes are uniformly distributed in the middle of a small cylinder of the clamp clip body 7, and the functions of chip removal and cutting fluid discharge are mainly achieved.
On the basis of the embodiment, the utility model provides a hydraulic fixture for axle type part milling process, anchor clamps elastic sleeve, the outside assembly that is multi-step cylinder and fluting cone, inside is multi-step inner cylindrical hole. The clamp elastic sleeve 8 can be seen in fig. 9. A group of symmetrical limiting grooves are formed in the outer cylinder at the lower end of the elastic clamp sleeve 8, and the upper and lower distances of the elastic clamp sleeve are limited through limiting screws of the elastic clamp sleeve. An inner hole at the lower end of the clamp elastic sleeve 8 is provided with an inner fine thread which is connected with the upper end of the clamp hydraulic piston rod through a thread.
The clamp collet setscrew 9 can be seen in fig. 10. The limiting screw 9 of the clamp elastic sleeve is arranged in a group of symmetrical standard countersunk head internal threads of the clamp cartridge clip body and extends into a group of symmetrical limiting grooves on an outer cylinder at the lower end of the clamp elastic sleeve to limit the upper and lower positions of the clamp elastic sleeve.
The fixture and machine table alignment key 10 can be seen in fig. 11. Anchor clamps and lathe workstation navigation key 10 are T shape right angle cuboid, have a counter bore screw hole on the cuboid, through the rectangle keyway cooperation at both ends on cuboid tip and the anchor clamps bottom plate, with standard screw and anchor clamps bottom plate fastening connection, the accurate cooperation in T-slot on the main aspects of key and the lathe workstation to reduce the time of calibration anchor clamps.
The elbow tubing joint 11 can be seen in figure 12. The elbow oil pipe joint 11 is a 7-shaped double-end external thread and is internally provided with a cylinder with a through hole, one end of the elbow oil pipe joint is connected with an oil inlet and an oil outlet of the clamp hydraulic cylinder 3 in the figure 1, and the other end of the elbow oil pipe joint is in threaded connection with an oil pipe and a nut 13.
The three-way tubing joint 12 can be seen in figure 13. The three-way oil pipe joint 12 is externally provided with T-shaped three-head external threads and internally provided with a cylinder with three through holes. The middle external thread of the three-way oil pipe joint 12 is in threaded connection with the oil inlet and outlet of the upper and lower oil cavities of the clamp hydraulic cylinder 3 in the figure 1, and the other two ends are in threaded connection with the oil pipe and the nut 13.
The tubing and nut 13 can be seen in figure 14. The two ends of the oil pipe and the nut 13 are hexagonal nuts, the middle is a cylindrical hollow oil pipe, and the nuts at the two ends are respectively in threaded connection with an elbow oil pipe joint, a three-way oil pipe joint and an oil pipe of a hydraulic station of a numerical control machining center to form a hydraulic loop.
The embodiment of the utility model provides a hydraulically operated fixture for axle type part milling process is through placing oil pipe and nut in the location clamping hole of anchor clamps elastic sleeve to axial to oil pipe and nut and radially advance line location, then pour into each hydro-cylinder with hydraulic oil and will move anchor clamps elastic sleeve downstream, tighten up after the outer cone of anchor clamps elastic sleeve contacts with the interior centrum of anchor clamps cartridge clip body, thereby press from both sides tight oil pipe and nut.
In order to explain the essence of the technical solution of the present invention more clearly, on the basis of the above-mentioned embodiments, a whole embodiment is proposed, and the whole appearance of the technical solution of the present invention is shown on the whole. It should be noted that this whole embodiment is only for showing the technical essence of the utility model, and is not right the utility model discloses protection scope's restriction, the technical staff in the field is in the utility model discloses on the basis of each embodiment, through the combination technical feature, any that obtains satisfies the combined technical scheme of technical scheme essence of the utility model, as long as can actually carry out, all within the protection scope of this patent. Mainly refer to fig. 1, the utility model discloses a hydraulic fixture for axle type part milling that whole embodiment provided, include: the clamp comprises a clamp bottom plate 1, a clamp side plate 2, a clamp hydraulic cylinder 3, a clamp hydraulic piston rod 4, a clamp cylinder seat plug 5, a clamp upper plate 6, a clamp elastic clamp body 7, a clamp elastic sleeve 8, a clamp elastic clamp sleeve limiting screw 9, a clamp and machine tool workbench positioning key 10, an elbow oil pipe joint 11, a three-way oil pipe joint 12, an oil pipe and nut 13, an oil port 14 and an oil port 15.
The clamp bottom plate 1 is a rectangular parallel cuboid. Two ends of the bottom plate parallel cuboid are respectively provided with two R arc-shaped openings and a key groove, the clamp bottom plate 1 and the clamp are fixedly connected with a machine tool workbench positioning key 10 through standard screws, and the two ends of the clamp bottom plate 1 are respectively provided with a group of standard screw holes which are connected with the clamp side plate 2. 3 groups of circumferential standard screw holes are formed in the central line of the clamp bottom plate 1 and are used for being connected with a clamp oil cylinder base (as shown in figure 2); the clamp side plate 2 is a parallel cuboid. The upper end and the lower end of the clamp side plate 2 are respectively provided with a group of standard threaded holes, the lower end of the clamp side plate is fixedly connected with the clamp bottom plate 1 through standard screws, and the upper end of the clamp side plate is fixedly connected with the clamp upper plate 6 through standard screws; the inside of the clamp hydraulic cylinder 3 is a multi-step cylinder, and the outside is a cylinder. The clamp hydraulic cylinder 3 has a set of oil seal grooves in the cylinder for filling standard seals. The hydraulic piston rod 4 of the clamp is arranged in the hydraulic cylinder 3 of the clamp, the hydraulic cylinder cavity is divided into an upper oil cavity and a lower oil cavity of the hydraulic cylinder of the clamp, and the upper oil cavity and the lower oil cavity of the hydraulic cylinder of the clamp are respectively provided with an oil inlet internal thread and an oil outlet internal thread which are used for being connected with an elbow oil pipe joint 11 or a three-way oil pipe joint 12. A group of circumferential standard internal threads are arranged below the clamp hydraulic cylinder 3 and used for installing a clamp hydraulic cylinder base plug 5; the inside of the hydraulic piston rod 4 of the clamp is a through hole, and the outside is a multi-step cylinder. The upper end of the hydraulic piston rod 4 of the clamp is in threaded connection with the elastic sleeve 8 of the clamp through fine threads. The through hole of the clamp hydraulic piston rod 4 is used for enabling a workpiece to pass through; the clamp oil cylinder base plug 5 is a through hole multi-step cylinder. A group of sealing grooves are used for filling sealing elements in the through holes, a group of sealing grooves are arranged on the small cylinder and used for filling the sealing elements, a group of circumferential screw holes are arranged on the large cylinder and fixedly connected with the clamp hydraulic cylinder through standard screw holes, and a group of circumferential standard internal threads are also arranged on the large cylinder and fixedly connected with the clamp bottom plate 1 through standard screws; the jig upper plate 6 is a parallel rectangular parallelepiped (as shown in fig. 7). And a group of standard countersunk head screw mounting holes are respectively arranged at the two long ends of the parallel cuboid, and are fixedly connected with the clamp side plate 2 by standard screws. A group of round holes are formed in the rectangular long central line of the upper clamp plate 6, and a hydraulic piston rod 4 of the clamp can pass through the round holes. And a set of standard internal threads are arranged on the circumference of each hole of the set of holes, and the clamp cartridge clip body 7 is fastened on the clamp upper plate 6 by using standard screws; the clamp clip body 7 is externally provided with a multi-step cylinder, and internally provided with a multi-step cylinder and inner cone assembly. A group of standard screws for the screw holes of the peripheral counter bores are arranged on the large cylinder of the clamp clip body 7 and fixedly connected with the clamp upper plate 6, a plurality of step inner holes and the inner cone of the clamp clip body 7 are used for installing the clamp elastic sleeve 8, and a group of symmetrical standard countersunk head internal threads are arranged at the lower end of the small cylinder of the clamp clip body 7 and used for installing the standard screws and limiting the up-and-down position of the clamp elastic sleeve 8. A group of through holes are uniformly distributed in the middle of a small cylinder of the clamp clip body 7, and the functions of chip removal and cutting fluid discharge are mainly achieved; the outside of the clamp elastic sleeve 8 is a combination of a multi-step cylinder and a slotted cone, the inside of the clamp elastic sleeve is a multi-step inner cylindrical inner hole, one inner hole is used for clamping the oil pipe and the nut 13, and the oil pipe and the nut 13 can be accurately positioned in the axial direction and the radial direction. The outer assembly of the clamp elastic sleeve 8 is arranged in the inner assembly of the clamp clip body 7 and is in clearance fit with the inner assembly. A group of symmetrical limiting grooves are formed in the outer cylinder at the lower end of the elastic clamp sleeve 8, and the upper and lower distances of the elastic clamp sleeve are limited through limiting screws 9 of the elastic clamp sleeve. An inner hole at the lower end of the clamp elastic sleeve 8 is provided with an inner fine thread which is connected with the upper end thread of the clamp hydraulic piston rod 4; the limiting screw 9 of the clamp elastic sleeve is a standard socket head cap screw. The limiting screw 9 of the elastic clamp sleeve is arranged in a group of symmetrical standard countersunk head internal threads of the elastic clamp clip body 7 of the clamp and extends into a group of symmetrical limiting grooves on an external cylinder at the lower end of the elastic clamp sleeve 8 to limit the upper and lower positions of the elastic clamp sleeve 8; the positioning key 10 of the fixture and the machine tool workbench is a T-shaped right-angled cuboid, a counter bore screw hole is formed in the cuboid, the small end of the cuboid is matched with rectangular key grooves in two ends of the fixture bottom plate 1 and is fixedly connected with the fixture bottom plate 1 through a standard screw, and the large end of the key is accurately matched with a T-shaped groove in the machine tool workbench so as to reduce the time for calibrating the fixture; the elbow oil pipe joint 11 is a 7-shaped double-end external thread and is internally provided with a cylinder with a through hole, one end of the elbow oil pipe joint is connected with an oil inlet and an oil outlet of the clamp hydraulic cylinder 3, and the other end of the elbow oil pipe joint is in threaded connection with an oil pipe and a nut 13; the three-way oil pipe joint 12 is externally provided with T-shaped three-head external threads and internally provided with a cylinder with three through holes. The middle external thread of the three-way oil pipe joint 12 is in threaded connection with the oil inlet and outlet of the upper and lower oil cavities of the clamp hydraulic cylinder 3, and the other two ends are in threaded connection with the oil pipe and the nut 13; the two ends of the oil pipe and the nut 13 are hexagonal nuts, the middle is a cylindrical hollow oil pipe, and the nuts at the two ends are respectively in threaded connection with the elbow oil pipe joint 11, the three-way oil pipe joint 12 and the oil pipe of the hydraulic station of the numerical control machining center to form a hydraulic loop.
Placing oil pipe and nut 13 in the 8 location clamping holes of anchor clamps elastic sleeve, oil pipe and nut 13 axial is by the contact realization accurate location of the big excircle lower extreme that the work piece has been processed and 8 clamping hole lower extremes of anchor clamps elastic sleeve, radial is by the contact realization accurate location of the big excircle that the work piece has been finely processed and 8 mounting holes of anchor clamps elastic sleeve, operation control system presss from both sides tight button, hydraulic oil gets into each hydro-cylinder through hydraulic fluid port 14 and makes anchor clamps hydraulic piston rod 4 remove to the hydro-cylinder below, drive anchor clamps elastic sleeve 8 and remove downwards, thereby it tightens up and presss from both sides tight oil pipe and nut 13 to tighten up after 8 outer cones of anchor clamps elastic sleeve contact with the interior centrum of anchor clamps. After the machining is finished, a numerical control system release key is pressed, hydraulic oil of a hydraulic system enters the clamp oil cylinder through the oil port 15, the clamp hydraulic piston rod 4 is pushed upwards, the clamp elastic sleeve 8 is driven to move upwards, the workpiece mounting hole of the clamp elastic sleeve 8 is bounced open, and the oil pipe and the nut 13 are loosened. The fast and accurate positioning is realized through the matching of the fixture and the positioning key 10 of the machine tool workbench and the positioning groove of the machine tool workbench.
The embodiment of the utility model provides a hydraulically operated fixture for axle type part milling process, compact structure, the dependable performance, the clamping-force is strong, fixes a position accurately, and it is convenient to trade and produce. The fixture has high efficiency, can meet the high-precision requirement of processing the rack tooth part, and can be widely popularized to precision milling of various shaft parts.
The above-described embodiments of the clip are merely illustrative, wherein the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
In this patent, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (7)
1. The utility model provides a hydraulically operated fixture for axle type part milling process which characterized in that includes:
the clamp comprises a clamp bottom plate, clamp side plates, a clamp hydraulic cylinder, a clamp hydraulic piston rod, a clamp oil cylinder seat plug, a clamp upper plate, a clamp spring clip body, a clamp elastic sleeve, a clamp elastic clip sleeve limiting screw, a clamp and machine tool workbench positioning key, an elbow oil pipe joint, a three-way oil pipe joint, an oil pipe and a nut;
the clamp bottom plate is connected with the clamp and the positioning key of the machine tool workbench; the clamp bottom plate is provided with a plurality of screw holes for connecting the clamp side plates; the clamp hydraulic cylinder is connected with the clamp bottom plate; an oil cylinder cavity is formed inside the clamp hydraulic cylinder and used for accommodating the clamp hydraulic piston rod and installing the clamp hydraulic piston rod in the oil cylinder cavity; the clamp hydraulic cylinder is provided with a circumferential inner threaded hole for mounting the clamp hydraulic cylinder seat plug; the clamp upper plate is in threaded connection with the clamp side plates; the clamp cartridge clip body is in threaded connection with the clamp upper plate; the clamp elastic sleeve is arranged in the clamp elastic clip body; the clamp elastic jacket limiting screw is arranged in the clamp elastic jacket body and extends into a limiting groove at the lower end of the clamp elastic jacket; the fixture and the machine tool workbench positioning key are arranged on the fixture bottom plate; the elbow oil pipe joint is respectively connected with the clamp hydraulic cylinder, the oil pipe and the nut; the three-way oil pipe joint is respectively connected with the clamp hydraulic cylinder, the oil pipe and the nut; two ends of the oil pipe and the nut are respectively in threaded connection with the elbow oil pipe joint and the three-way oil pipe joint;
wherein, place oil pipe and nut in the location clamping hole of anchor clamps elastic sleeve, oil pipe and nut axial are realized the location by the contact of big excircle lower extreme that has processed and anchor clamps elastic sleeve clamping hole lower extreme, radially realize the location by the contact of big excircle that has processed and anchor clamps elastic sleeve mounting hole, the tight button of operation control system clamp, hydraulic oil gets into each hydro-cylinder through the hydraulic fluid port and moves anchor clamps hydraulic piston rod to the hydro-cylinder below, drive anchor clamps elastic sleeve downstream, thereby tighten up and press from both sides tight oil pipe and nut after the outer cone of anchor clamps elastic sleeve contacts with the interior centrum of anchor clamps clip body.
2. The hydraulic clamp for milling shaft parts according to claim 1, wherein the clamp bottom plate is provided with a plurality of screw holes for connecting the clamp side plates, and the hydraulic clamp comprises:
two rows of screw holes are oppositely formed on two sides of the clamp bottom plate and used for connecting the clamp side plates.
3. The hydraulic clamp for milling of shaft parts according to claim 1, wherein the clamp side plates are provided with a row of screw holes on the upper side and the lower side respectively.
4. The hydraulic clamp for milling of shaft parts according to claim 1, wherein the hydraulic cylinder, the upper oil chamber and the lower oil chamber of the clamp each have an internal thread for oil inlet and outlet for connection with the elbow pipe joint or the tee pipe joint.
5. The hydraulic clamp for milling of shaft parts according to claim 1, wherein the clamp cylinder block plug is a through hole multi-step cylinder.
6. The hydraulic clamp for milling of shaft parts as claimed in claim 1, wherein the clamp body is a multi-step cylinder on the outside and a combination of the multi-step cylinder and an inner cone on the inside.
7. The hydraulic clamp for milling shaft parts according to claim 1, wherein the clamp elastic sleeve is a combination of a multi-step cylinder and a slotted cone on the outer part and a multi-step inner cylindrical inner hole on the inner part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201921168407.XU CN210615875U (en) | 2019-07-24 | 2019-07-24 | Hydraulic clamp for milling shaft parts |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921168407.XU CN210615875U (en) | 2019-07-24 | 2019-07-24 | Hydraulic clamp for milling shaft parts |
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| CN210615875U true CN210615875U (en) | 2020-05-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110227957A (en) * | 2019-07-24 | 2019-09-13 | 湖北三环汽车方向机有限公司 | Hydraulically operated fixture for axial workpiece milling processing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110227957A (en) * | 2019-07-24 | 2019-09-13 | 湖北三环汽车方向机有限公司 | Hydraulically operated fixture for axial workpiece milling processing |
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Granted publication date: 20200526 Termination date: 20210724 |