CN206966694U - A kind of bent axle puncher - Google Patents

Abstract

The utility model provides a kind of bent axle puncher, belongs to field of mechanical technique.It solves the problems, such as that existing drilling machine processing stability is low.This bent axle puncher includes frame and the clamping bench being arranged in frame, clamping bench is provided with fixture, the drill bit assembly that can be moved up and down relative to clamping bench is provided with the top of clamping bench, clamping bench is provided with backer, backer includes backer's block and the stop part being connected on backer's block, backer's block is connected on clamping bench, and the adjustment structure that stop part is moved up and down relative to backer's block and is held in position after movement can be made by being provided between backer's block and stop part.It has the advantages that various angular hole-borings, processing stability can be carried out high.

Description

A kind of bent axle puncher

Technical field

The utility model belongs to field of mechanical technique, is related to a kind of puncher, more particularly to a kind of bent axle puncher.

Background technology

Bent axle is most important part in engine, and it bears the power that connecting rod transmits, and is transformed into torque and passes through song Axle exports and drives other annexes on engine to work, and the life-span of bent axle decides the service life of complete machine, to ensure bent axle work Make reliably, some straight holes or inclined hole can be processed on bent axle as needed.At present, all it is using punching for bent axle punching Machine is punched, or but puncher can only beat straight hole on bent axle, or inclined hole can only be beaten on bent axle, can not be by same One puncher, which is not only realized to beat straight hole but also realize, beats inclined hole.

Chinese patent is it is proposed that excessively a kind of has the [application of the drilling machine of a movable head and a tilting table Number：94107745.4], it has a pedestal that can be arranged on a workbench, an installation on the base vertical vertical Post and one have a drilling machine power head component of a motor and an auger spindle, and the drilling machine power head component is connected on column and can be Move thereon；One be arranged at the top of column and can be rotatable about rack and can be by one installed in drilling machine power head component Gear crank mechanism on support connects and drilling machine power head component is rotated and can be vertically moved thereon around column；One Tilt table is attached on the pedestal of drilling machine；One has through the transverse direction on the cannelure and pedestal on supporting substrate The retaining mechanism of one bolt of groove is locked at the supporting substrate of tilt table with an eccentrically mounted cam axis connection On retaining mechanism on drilling machine pedestal；One rotary support is pivotally attached in supporting substrate and including a workbench Plate；One coaming plate may be mounted on the face of rotary support, have one to be easy to workpiece being locked on tilt table on coaming plate Stopping element.It serves the effect in the hole that all angles can be bored on workpiece by setting tilting table.

Although can bore the hole of all angles on workpiece using above-mentioned drilling machine, there is also certain deficiency for it Place：The drilling machine is not specially to be designed for bent axle punching, therefore there is the orientation problem of bent axle in boring procedure.And Although being also provided with the stopping element that can be locked at workpiece on tilt table on the drilling machine, due to bent axle structure compared with To be special, and external form is not conventional, therefore is difficult really to position bent axle using the stopping element in the drilling machine.And in routine Bent axle puncher in, typically also only by set fixture the bar portion of bent axle is clamped, with reach clamping bent axle purpose. But due to having balance weight on bent axle, cause the deviation of gravity center of bent axle, if only clamping the bar portion of bent axle, when drill bit is in song On axle drill when can be easy to make bent axle be produced deflection by the Action of Gravity Field of balance weight so that drill stability by Very big influence.

The content of the invention

The purpose of this utility model is in view of the above-mentioned problems existing in the prior art, it is proposed that a kind of bent axle puncher, institute Technical problems to be solved are how to ensure the stability of processing while various angular hole-borings are carried out on bent axle.

The purpose of this utility model can be realized by following technical proposal：

A kind of bent axle puncher, including frame and the clamping bench that is arranged in frame, described clamping bench are provided with folder Tool, the drill bit assembly that can be moved up and down relative to clamping bench is provided with the top of clamping bench, it is characterised in that described clamping Platform is provided with backer, and described backer includes backer's block and the stop part being connected on backer's block, the connection of described backer's block Being provided with clamping bench, between described backer's block and stop part can make stop part move up and down and move relative to backer's block The adjustment structure being held in position after dynamic.

Bent axle is clamped in the fixture on clamping bench, then controls actuator to drive according to the angle of required drilling The rotational angle of rotating shaft, drill bit assembly is controlled to move down to be drilled after rotateing in place.One end of bent axle all has balance Block, all the bar portion of bent axle is clamped just with fixture during bent axle clamping, the balance weight of bent axle be all outside fixture, and And by balance weight is all to be in again in the class semicircular structure surrounded by an arc section and a line segment, the bar portion of bent axle The polished rod shape of rule, cause the center of bent axle bar portion and the center of the balance weight of bent axle not in same position, thus while bent axle Bar portion be clamped, but bent axle may be produced the trend of deflection after clamping by the Action of Gravity Field of balance weight.

After the bar portion of bent axle is clamped in fixture, the balance weight of bent axle can be located at outside fixture, thus on clamping bench with The location of balance weight corresponding position sets backer after bent axle clamping, is engaged by backer with the balance weight of bent axle to realize song Axle it is anti-sway.Because backer includes backer and the stop part that is connected on backer's block, backer's block is connected on clamping bench and kept It is motionless, the position relationship in the face and stop part upper end residing for line segment after then being clamped according to bent axle on balance weight, utilize regulation Stop part is adjusted structure, with ensure the face residing for the line segment on the balance weight of bent axle when being resisted against the upper end of stop part it is firm It is also parallel with horizontal plane well, so as to ensure that the balance weight after bent axle clamping is not in the situation that high one side is low on one side, The trend that bent axle is produced deflection by the Action of Gravity Field of balance weight is stopped by backer, so that bent axle is in axis of rotation process In can remain stationary as, with improve process when stability.

In above-mentioned bent axle puncher, described fixture includes grip block and pressing plate, the upper table of described grip block Face offers holding tank along the direction perpendicular with rotating shaft, and described pressing plate is located at the top of grip block and pressing plate can be relative to Grip block moves up and down, and described backer's block is located at outside one end of holding tank.

During clamping bent axle, the bar portion of bent axle is placed in the holding tank on grip block, and the balance weight of bent axle can be located at clamping Outside one end of groove, then only need that backer's block is fixed on outside one end of holding tank to and ensured the balance weight position of backer's block and bent axle In outside same one end of holding tank, then after bent axle clamping is in fixture, then the upper end position by adjustment structure regulation stop part Put, so that it may so that the face residing for line segment on the balance weight of bent axle can just be resisted against on the upper surface of stop part and with level Face keeping parallelism, backstop is formd to balance weight, the rotation of bent axle during so as to prevent processing, play and improve borehole stability Effect.

Provided bar shaped adjustment hole in above-mentioned bent axle puncher, on the outside of described backer's block, described backer's block with Clamping bench through bar shaped adjustment hole and the trip bolt that penetrates in clamping bench by mutually fixing.

When the specification difference for the bent axle processed, the size of the balance weight on bent axle is also different.Outside due to backer's block Side has provided bar shaped adjustment hole, and backer's block and clamping bench are by through bar shaped adjustment hole and the trip bolt phase that penetrates in clamping bench It is fixed, then after trip bolt is unclamped, backer's block just forms the state being separated with clamping bench, then passes through bar shaped adjustment hole Backer's block relative to clamping stage translation, is made the face on the balance weight after replacing residing for line segment still can by the cooperation with trip bolt To form effective backstop on the upper surface for the stop part being enough resisted against after translation, then trip bolt is tightened and makes backer's block and dress Folder platform is mutually fixed again.Pass through such mode so that the adjustable structure of backer's block forming position, stop so as to reach left and right adjusting The purpose of flight position, then with the height regulation for closing stop part upper end, enable stop part can to the bent axle of different size Enough form effective backstop.

In above-mentioned bent axle puncher, described backer's block is L-shaped, and described backer's block is including section anyhow and vertically Section, described bar shaped adjustment hole are located at anyhow in section of backer's block, and described stop part is connected to the upper of the vertical section of backer's block End.

Backer's block is arranged to L-type, can adjust the lateral attitude regulatory function of backer's block and the longitudinal direction height of stop part Function is non-interference, and the lower end for being mainly reflected in stop part is connected with the upper end of the vertical section of backer's block, and bar shaped adjustment hole is set In backer's block anyhow in section, the setting of bar shaped adjustment hole does not interfere with the normal regulating of stop part.

In above-mentioned bent axle puncher, described stop part is in shaft-like, and described backer's block is provided with connecting hole, described Stop part lower end be located in connecting hole, described adjustment structure include be arranged at stop part lower end outside external screw thread and set The internal thread being placed on connecting hole inwall.

Stop part is engaged with backer's block by the external screw thread of lower end with the internal thread on the connecting hole inwall on backer's block And threaded connection is formed, threaded connection can not only be such that stop part is held in position with backer's block, while rotational stop part again can be with The upper end of stop part is set to move up or move down relative to backer's block, the adjustment structure of this form can make processing staff very convenient Ground adjusts the height of stop part upper end, so that the face residing for the line segment on the balance weight of bent axle is resisted against energy behind stop part upper end Enough and horizontal plane keeping parallelism, stability during improving processing.

In above-mentioned bent axle puncher, as another technical solution, described stop part is in shaft-like, described backer Block is provided with connecting hole, and described stop part lower end is located in connecting hole, and described adjustment structure includes being opened on backer's block Lock hole and the lock screw that is threaded in lock hole, described lock hole is connected with connecting hole and lock screw End withstand on the lower end sidepiece of stop part.

Original state, the end of lock screw withstand on stop part lower end sidepiece, and stop part is fixed.When needing regulation, Outwards screwing out lock screw is released stop part, is then pulled up according to the position in the face residing for line segment on the balance weight of bent axle Or stop part is pushed, to ensure the position in the face residing for the line segment on the balance weight of bent axle be resisted against can behind stop part upper end With horizontal plane keeping parallelism, then screwing lock screw again makes stop part remain stationary as again.Pass through the regulation of this form Structure can also realize the regulation of stop part upper end position, so as to ensure that the face residing for the line segment on the balance weight of bent axle is resisted against Can be with horizontal plane keeping parallelism behind stop part upper end, stability during improving processing.

In above-mentioned bent axle puncher, described frame is provided with column, and described column is provided with can be along vertical The slide plate that post slides up and down, described drill bit assembly include the drill bit case being fixed on slide plate and are arranged at drill bit bottom portion Drill bit, described column are provided with guide plate in the lower section of slide plate, and described guide plate is provided with pilot hole, described guiding hole position In the underface of drill bit lower end, and the drill bit lower end described in when drill bit assembly moves down can pass through pilot hole and and pilot hole Between formed gap coordinate.

The length of drill bit is general all longer, it is easy to swing is produced when length is longer makes the lower end of drill bit in drilling, So as to cause the position in bored hole or size deviation to be present.Therefore, this bent axle puncher in the lower section of slide plate by setting The guide pad that can be slided up and down along column, guide plate is fixed with guide pad, guide plate is provided with pilot hole, then makes brill The lower end of head passes through pilot hole.Because drill bit and pilot hole coordinate for gap, therefore when the swing of drill bit lower end can be directed to hole Hole wall stopped so that drill bit rotate drilling but do not deflect, thus to improve drilling when stability.

In above-mentioned bent axle puncher, described column is provided with what can be slided up and down along column in the lower section of slide plate Guide pad, described guide plate are fixed on guide pad.

It is directed to plate and is fixed on guide pad, guide pad can slide up and down along column, then above and below guide pad The position that position can regulation pilot hole limitation drill bit is swung, to reach the optimum efficiency for preventing that drill bit from swinging.

In above-mentioned bent axle puncher, guide cylinder, the piston of described guide cylinder are fixed with described frame Bar is mutually fixed with guide pad, and the sidepiece of described guide pad is fixed with stopper, described column be provided with two dampers and One of damper is in the top of another damper, and described stopper is between two dampers.

Guide cylinder uses common telescopic cylinder, and common telescopic cylinder does not possess the work(of limitation piston rod stroke Can, i.e., either piston rod is fully extended or piston rod is fully retracted, and the fully extended position that can cause pilot hole of piston rod Too high and influence anti-sway effect, piston rod is fully retracted, and pilot hole can be caused to be kept completely separate with drill bit.

And two dampers one on the other are set on column, guide pad sidepiece sets stopper and stopper is located at two Between individual damper, so carried out by stretching of two damper cans to the piston rod of guide cylinder or retract stroke Limit, drill bit is formed in effectively anti-sway scope so that the stroke of the piston rod of guide cylinder can be in all the time.

In above-mentioned bent axle puncher, described guide plate includes plate body, locating piece and guide sleeve, described plate body It is fixed on guide pad, described locating piece is arranged on plate body, and described locating piece is provided with positioning hole and in positioning hole Provided with guide sleeve, described pilot hole is located on guide sleeve, and described guide sleeve is penetrated and withstood on outside locating piece by one Lock-screw in guide sleeve side wall is fixed in positioning hole.

Need to replace with the drill bit of corresponding size during the hole for processing different size, and because drill bit and pilot hole are gap Coordinate, the cooperation between pilot hole is influenced whether when bit size difference, so that pilot hole can not be effectively to drill bit Form the effect of anti-rock.Therefore hole is directed to be arranged on guide sleeve, and guide sleeve penetrates further through one outside locating piece The lock-screw withstood in guide sleeve side wall is fixed in positioning hole, and this allows for foring between guide sleeve and locating piece removable The structure of formula.

When the size difference of drill bit, lock-screw is screwed out, then being replaced with positioning hole has and bit size The guide sleeve in corresponding pilot hole aperture, then again again screws in lock-screw.So, the drill bit after replacing just can Pilot hole limitation on guide sleeve after being replaced, to improve stability when processing.

In above-mentioned bent axle puncher, described locating piece is provided with bar shaped mounting hole, described locating piece and plate body By mutually being fixed through bar shaped mounting hole and the positioning screw that penetrates in plate body.

After setting bar shaped mounting hole, processing staff to adjust replacing according to the difference of bit size on locating piece The front and back position of guide sleeve, so that the drill bit lower end after changing can pass through the pilot hole on the guide sleeve after changing, so as to protect Demonstrate,prove this bent axle puncher process all size hole when can held stationary, improve processing stability.

Compared with prior art, this bent axle puncher has advantages below：

1st, backer is located on clamping bench at the fixture, the balance weight of bent axle after bent axle is clamped in fixture with backer's phase Against backstop is formed, prevent bent axle from producing swing because of balance weight, to improve stability when drilling；

2nd, the lateral attitude of stop screw and longitudinal direction height are adjustable, make bent axle of the same backer to all size Effective backstop can be formed, thus can ensure stability when the bent axle to all size is processed；

3rd, the pilot hole that gap coordinates is formed after being passed through using drill bit limitation is formd to drill bit, prevent drill bit lower end because boring Head length is long and occurs swinging the stability so that when having influence on drilling；

4th, pilot hole is arranged on removable guide sleeve, therefore after various sizes of drill bit is changed, can correspondingly more The guide sleeve with corresponding pilot hole aperture is changed, so that stability can be ensured when boring the hole of all size；

5th, the piston rod stroke of guide cylinder is limited by the damper of about two distributions, so that the piston rod of guide cylinder Stroke can be all the time in being formed to drill bit effectively in anti-sway scope.

Brief description of the drawings

Fig. 1 is the front view of this bent axle puncher.

Fig. 2 is the stereogram of this bent axle puncher.

Fig. 3 is the front view at clamping bench in this bent axle puncher.

Fig. 4 is front view when Fig. 3 is clamped with bent axle.

Fig. 5 is the schematic diagram between clamping bench and rotating shaft in this bent axle puncher.

Fig. 6 is the sectional view of backer in this bent axle puncher.

Fig. 7 is front view when being not connected with having drill bit assembly on this bent axle puncher central post.

Fig. 8 is side view when drill bit assembly is connected with this bent axle puncher central post.

Fig. 9 is the top view of guide plate in this bent axle puncher.

Figure 10 is Fig. 9 front view.

Figure 11 is the optical cable of guide plate.

In figure, 1, frame；2nd, clamping bench；3rd, fixture；3a, grip block；3a1, holding tank；3b, pressing plate；3c, gripper cylinder； 4th, drill bit assembly；4a, drill bit case；4b, drill bit；5th, rotating shaft；6th, backer；6a, backer's block；6a1, anyhow section；6a11, bar shaped regulation Hole；6a2, vertical section；6a21, connecting hole；6b, stop part；7th, trip bolt；8th, column；9th, slide plate；10th, guide plate；10a, plate Body；10b, locating piece；10b1, positioning hole；10b2, bar shaped mounting hole；10c, guide sleeve；10c1, pilot hole；10d, locking screw Nail；10e, positioning screw；11st, guide pad；12nd, guide cylinder；13rd, stopper；14th, damper；15th, motor；16th, electromagnetism Brake；17th, cross saddle；18th, mounting seat；19th, output motor；20th, Z axis motor；21st, damping sheet；22nd, slide rail；23rd, it is sliding Block；24th, contiguous block；25th, bent axle.

Embodiment

It is specific embodiment of the utility model and with reference to accompanying drawing below, the technical solution of the utility model is made further Description, but the utility model is not limited to these embodiments.

Embodiment one

As depicted in figs. 1 and 2, a kind of bent axle puncher, including frame 1, frame 1 are provided with clamping bench 2, on clamping bench 2 Provided with fixture 3, the top of clamping bench 2 is provided with the drill bit assembly 4 that can be moved up and down relative to clamping bench 2.It is additionally provided with frame 1 Rotating shaft 5 and actuator, after actuator is connected with rotating shaft 5 and actuator can drive rotating shaft 5 to rotate and rotating shaft 5 is rotate in place Remain stationary as, clamping bench 2 is connected in rotating shaft 5.Actuator is to be connected to the motor 15 of the one end of rotating shaft 5 and be connected to turn The electromagnetic brake 16 of the other end of axle 5, the output shaft of motor 15 are connected with rotating shaft 5 by shaft coupling, work as motor During 15 output shaft rotation rotating shaft 5 can be driven together to rotate, make rotating shaft 5 using electromagnetic brake 16 after rotating shaft 5 rotate in place Remain stationary.Certainly, in addition to the mode that aforesaid way motor 15 is engaged with electromagnetic brake 16, actuator is also Can be by the way of motor 15 be engaged with brake disc or rotary cylinder is engaged with electromagnetic brake 16.

As shown in figure 3, in order that bent axle 25 is easy to drill well after being clamped on clamping bench 2 with the face of drill bit assembly 4, can be with Cross saddle 17 is set in frame 1, U-shaped mounting seat 18 is fixed in the top of cross saddle 17, rotating shaft 5 is located in peace On dress seat 18 and clamping bench 2 is located at the opening of mounting seat 18, is equipped with bearing between the both ends of rotating shaft 5 and mounting seat 18, passes through Cross saddle 17 can realize the movement of clamping bench 2 in the horizontal plane, the i.e. movement of X-direction and Y direction.

As shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, backer 6 is provided with clamping bench 2 at fixture 3, fixture 3 includes being arranged at Grip block 3a and pressing plate 3b on clamping bench 2, grip block 3a upper surface offer clamping along the direction perpendicular with rotating shaft 5 Groove 3a1, holding tank 3a1 is V-shaped, and pressing plate 3b is located at grip block 3a top, and the bottom of clamping bench 2 is fixed with gripper cylinder 3c, Gripper cylinder 3c piston rod is upward through clamping bench 2 and is connected with pressing plate 3b.In clamping bent axle 25, by the bar of bent axle 25 Portion is placed in grip block 3a holding tank 3a1 and then made under pressing plate 3b lids.Backer 6 includes backer's block 6a and stop part 6b, Backer's block 6a is connected to the side of clamping bench 2, and the balance weight of bent axle 25 and backer block 6a positions after bent axle 25 is located in fixture 3 In outside holding tank 3a1 same one end, stop part 6b lower end is connected to backer's block 6a upper end, and stop part 6b and backer's block 6a Between be provided with can make the adjustment structure that stop part 6b is moved up and down and is held in position after movement relative to backer's block 6a, this In embodiment, stop part 6b is in shaft-like, and backer's block 6a is provided with connecting hole 6a21, and stop part 6b lower ends are located at connecting hole 6a21 Interior, adjustment structure includes the interior spiral shell for being arranged at the external screw thread of stop part 6b lower end outsides and being arranged on connecting hole 6a21 inwalls Line.It can specifically be used using fillister head screw as stop part 6b, naturally it is also possible to be bolt, tack pin etc..

The bar portion of bent axle 25 is located in holding tank 3a1, and the one end of bent axle 25 with balance weight is located at outside holding tank 3a1, puts down The block that weighs all is the similar semicircular structure surrounded by an arc section and a line segment.And backer's block 6a is connected to clamping bench 2 side, backer's block 6a threaded upper ends are connected with stop part 6b, then ensure that bent axle 25 has the one of balance weight in clamping End connects the side for the block 6a that has backing positioned at clamping bench 2, can so enable the face residing for the line segment on the balance weight of bent axle 25 Enough it is resisted against on stop part 6b upper surface to keep parallel with horizontal plane.Come specifically by turn stop part 6b to backstop Part 6b upper end level position is adjusted, it is ensured that the face residing for line segment on the balance weight of bent axle 25 is resisted against stop part 6b's , so that balance weight is not in the situation that high one side is low on one side, bent axle 25 can be made with horizontal plane keeping parallelism behind upper end The trend that deflection is produced by the Action of Gravity Field of balance weight is stopped by backer 6, so that bent axle 25 is in axis of rotation process In can remain stationary as, with improve process when stability

As shown in fig. 6, backer's block 6a is L-shaped, backer's block 6a has section 6a1 and vertical section 6a2 anyhow, backer's block 6a horizontal stroke Straight section 6a1 sidepiece has provided bar shaped adjustment hole 6a11, backer's block 6a by through bar shaped adjustment hole 6a11 and penetrating clamping bench 2 The interior phase of trip bolt 7 is fixed.Connecting hole sets the upper end with backer's block 6a vertical section 6a2, and stop part 6b lower end is with leaning on Mountain block 6a vertical section 6a2 threaded upper ends connection.Backer's block 6a passes through bar shaped adjustment hole 6a11 and the cooperation energy of trip bolt 7 Stop part 6b right position regulation is enough realized, while stop part 6b is enough realized only with backer's block 6a mode and cans being threadedly coupled Block piece 6b longitudinal direction height is adjusted, by the same backer 6 of regulation of the two positions in face of the different bent axle of specification Effective backstop can be formed when 25.In order to avoid bar shaped adjustment hole 6a11 is directly exposed to outside, it is arranged on trip bolt 7 One piece of cover plate, bar shaped adjustment hole 6a11 can be covered up using cover plate.

As shown in Fig. 2, Fig. 7 and Fig. 8, frame 1 is provided with column 8, and the side surface relative with clamping bench 2 of column 8 is parallel Two slide rails 22 are provided with, sliding block 23 is respectively equipped with two slide rails 22, slide plate 9 is connected between each sliding block 23.Drill bit assembly 4 includes Drill bit 4b and drill bit case 4a, drill bit 4b are arranged at drill bit case 4a bottom, output motor 19, drill bit are fixed with drill bit case 4a The transmission mechanism for being connected with the output shaft of output motor 19 and drill bit 4b being driven to rotate is provided with case 4a.It is fixed on column 8 There is Z axis motor 20, the bottom of slide plate 9 is connected with Z axis screw mandrel, and the output shaft of Z axis motor 20 is connected with Z axis screw mandrel, when Z axis motor By Z axis screw mandrel slide plate 9 can be driven to be moved up and down along slide rail 22 during 20 output shaft rotation, to realize that drill bit 4b's is upper and lower It is mobile.

As shown in Figure 7 and Figure 8, guide pad 11 is further respectively had on two slide rails 22, guide pad 11 is located at the lower section of sliding block 23, Guide plate 10 is connected between each guide pad 11, guide plate 10 is provided with the pilot hole 10c1 with drill bit 4b lower ends face, works as brill Head 4b lower ends pass through pilot hole 10c1 after drill bit 4b and pilot hole 10c1 formed gap cooperation.By being set on guide plate 10 Pilot hole 10c1 is put, drill bit 4b lower end is passed through pilot hole 10c1.Because drill bit 4b and pilot hole 10c1 matches somebody with somebody for gap Close, therefore stopped when swings of drill bit 4b lower ends can be directed to hole 10c1 hole wall so that drill bit 4b rotations drill but Do not deflect, thus to improve drilling when stability.

The relative side of two guide pads 11 is respectively fixed with contiguous block 24, is further fixed on two guide cylinders 12 in frame 1, and one The piston rod of individual guide cylinder 12 one contiguous block 24 of corresponding connection, makes with the stretching or retraction of the piston rod of guide cylinder 12 Guide plate 10 is obtained to move up or down.The opposite side of two guide pads 11 is respectively fixed with stopper 13, and the both sides of column 8 are equal Provided with two damping sheets 21, damper 14 is all fixed with every piece of damping sheet 21, on two dampers 14 of the same side of column 8 Lower face is set, and is located at the stopper 13 of the same side between two dampers 14 with two damper 14.Damper 14 is bullet Spring damper, stopper 13 is between two dampers 14, so by two cans of damper 14 to guide cylinder 12 Piston rod stretching or retract stroke be defined so that the stroke of the piston rod of guide cylinder 12 can all the time in pair Drill bit 4b is formed in effectively anti-sway scope.

As shown in Fig. 9, Figure 10 and Figure 11, in the present embodiment, guide plate 10 includes plate body 10a, locating piece 10b and led To set 10c, plate body 10a is fixed between each guide pad 11, locating piece 10b be provided with bar shaped mounting hole 10b2, locating piece 10b with Plate body 10a through bar shaped mounting hole 10b2 and the positioning screw 10e phases that penetrate in plate body 10a by fixing.Locating piece 10b parts Stretch out outside plate body 10a, and positioning hole 10b1 is provided with the locating piece 10b stretched out outside plate body 10a, guide sleeve 10c is located at positioning In the 10b1 of hole, pilot hole 10c1 is located on guide sleeve 10c, and guide sleeve 10c outside locating piece 10b by penetrating and withstanding on guide sleeve Lock-screw 10d in 10c side walls is fixed in positioning hole 10b1.

When the change in size in hole for needing to bore just needs to use various sizes of drill bit 4b, and on original guide sleeve 10c Pilot hole 10c1 be that can not be formed effectively to coordinate with the drill bit 4b after replacing, therefore on locating piece 10b set bar shaped pacify Hole 10b2 is filled, can be adjusted and determined by positioning screw 10e and bar shaped mounting hole 10b2 cooperation after positioning screw 10e is unscrewed Position block 10b relative to plate body 10a overhang.Meanwhile lock-screw 10d is screwed out, it is possible to take original guide sleeve 10c Go out, be then placed in the guide sleeve 10c with pilot hole 10c1 apertures corresponding with the drill bit 4b sizes after replacing, then again again Lock-screw 10d is screwed in and withstood in guide sleeve 10c side wall.By operation above, enable the drill bit 4b lower ends after replacing The pilot hole 10c1 on guide sleeve 10c after being enough replaced is limited, so as to ensure when processing the hole of arbitrary dimension The stability of processing.

As shown in Fig. 3, Fig. 4 and Fig. 5, in the present embodiment, in order to be drilled to multiple bent axles 25 simultaneously, filling One group two-by-two of fixture 3 and fixture 3 for setting that quantity is even number on platform 2 are pressed from both sides, is set and the quantity identical of fixture 3 on drill bit case 4a Drill bit 4b, while in order to remain stationary after ensureing each clamping of bent axle 25, on clamping with each fixture 3 It is correspondingly arranged a backer 6.Two fixtures 3 in same group share same block pressur plate 3b and same gripper cylinder 3c, Gripper cylinder 3c piston rod is placed through the clamping bench 2 between two fixtures 3, and gripper cylinder 3c piston rod is connected to pressing plate At 3b center, the holding tank 3a1 on two fixtures, 3 respective grip block 3a is respectively positioned on pressing plate 3b lower section, and pressing plate 3b is circular arc Shape plate, pressing plate 3b lower surface place relative with two holding tank 3a1 is plane, is acted by gripper cylinder 3c piston rod Clamping and the release of two bent axles 25 can be realized simultaneously.

Embodiment two

The present embodiment is essentially identical with the structure and principle of embodiment one, and difference is：In the present embodiment, backstop Part 6b is in shaft-like, and backer's block 6a is provided with connecting hole 6a21, and stop part 6b lower ends are located in connecting hole 6a21, and adjustment structure includes The lock hole being opened on backer's block 6a and the lock screw being threaded in lock hole, lock hole and connecting hole 6a21 phases The end of connection and lock screw withstands on stop part 6b lower end sidepiece.

Original state, the end of lock screw withstand on stop part 6b lower ends sidepiece, and stop part 6b is fixed.Need to adjust When, outwards screwing out lock screw is released stop part 6b, then the position in the face according to residing for line segment on the balance weight of bent axle 25 Put to pull up or push stop part 6b, to ensure the position in the face residing for the line segment on the balance weight of bent axle 25 to be resisted against backstop Can be with horizontal plane keeping parallelism behind part 6b upper ends, then screwing lock screw again makes stop part 6b remain stationary as again.It is logical The regulation of stop part 6b upper end positions can also be realized by crossing the adjustment structure of this form, so as to ensure on the balance weight of bent axle 25 Line segment residing for be resisted against behind stop part 6b upper ends can be with horizontal plane keeping parallelism in face, stability during improving processing.

Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.

Claims (10)

1. a kind of bent axle puncher, including frame (1) and the clamping bench (2) that is arranged in frame (1), described clamping bench (2) fixture (3) is provided with, the drill bit assembly that can be moved up and down relative to clamping bench (2) is provided with the top of clamping bench (2) (4), it is characterised in that described clamping bench (2) is provided with backer (6), and described backer (6) includes backer's block (6a) and connected The stop part (6b) being connected on backer's block (6a), described backer's block (6a) are connected on clamping bench (2), described backer's block Being provided between (6a) and stop part (6b) can be such that stop part (6b) is moved up and down relative to backer's block (6a) and protect after movement Hold the adjustment structure of positioning.

2. bent axle puncher according to claim 1, it is characterised in that provided bar shaped on the outside of described backer's block (6a) Adjustment hole (6a11), described backer's block (6a) and clamping bench (2) are by through bar shaped adjustment hole (6a11) and penetrating clamping bench (2) trip bolt (7) in is mutually fixed.

3. bent axle puncher according to claim 2, it is characterised in that described backer's block (6a) is L-shaped, and described leans on Mountain block (6a) includes section (6a1) anyhow and vertical section (6a2), described bar shaped adjustment hole (6a11) are located at the horizontal stroke of backer's block (6a) On straight section (6a1), described stop part (6b) is connected to the upper end of backer's block (6a) vertical section (6a2).

4. according to the bent axle puncher described in claim 1 or 2 or 3, it is characterised in that described stop part (6b) in shaft-like, Described backer's block (6a) is provided with connecting hole (6a21), and described stop part (6b) lower end is located in connecting hole (6a21), institute The adjustment structure stated includes being arranged at the external screw thread of stop part (6b) lower end outside and is arranged on connecting hole (6a21) inwall Internal thread.

5. according to the bent axle puncher described in claim 1 or 2 or 3, it is characterised in that described stop part (6b) in shaft-like, Described backer's block (6a) is provided with connecting hole (6a21), and described stop part (6b) lower end is located in connecting hole (6a21), institute The adjustment structure stated includes the lock hole being opened on backer's block (6a) and the lock screw being threaded in lock hole, institute The lock hole stated is connected with connecting hole (6a21) and the end of lock screw withstands on the lower end sidepiece of stop part (6b).

6. bent axle puncher according to claim 1, it is characterised in that described frame (1) is provided with column (8), institute The column (8) stated is provided with can be along the slide plate (9) that column (8) slide up and down, and described drill bit assembly (4) includes being fixed on Drill bit case (4a) on slide plate (9) and the drill bit (4b) for being arranged at drill bit case (4a) bottom, described column (8) is in slide plate (9) lower section is provided with guide plate (10), and described guide plate (10) is provided with pilot hole (10c1), described pilot hole (10c1) Positioned at the underface of drill bit (4b) lower end, and drill bit (4b) lower end described in when drill bit assembly (4) moves down can pass through and lead Gap is formed to hole (10c1) and between pilot hole (10c1) to coordinate.

7. bent axle puncher according to claim 6, it is characterised in that described column (8) is set below slide plate (9) Having can be fixed on guide pad (11) along the guide pad (11) that column (8) slide up and down, described guide plate (10).

8. bent axle puncher according to claim 7, it is characterised in that be fixed with guide cylinder in described frame (1) (12), the piston rod of described guide cylinder (12) is mutually fixed with guide pad (11), and the sidepiece of described guide pad (11) is fixed There is stopper (13), described column (8) is provided with two dampers (14) and one of damper (14) is located at another The top of damper (14), described stopper (13) is between two dampers (14).

9. bent axle puncher according to claim 7, it is characterised in that described guide plate (10) include plate body (10a), Locating piece (10b) and guide sleeve (10c), described plate body (10a) are fixed on guide pad (11), described locating piece (10b) is arranged on plate body (10a), and described locating piece (10b) is provided with positioning hole (10b1) and in positioning hole (10b1) Provided with guide sleeve (10c), described pilot hole (10c1) is located on guide sleeve (10c), and described guide sleeve (10c) passes through one The lock-screw (10d) for penetrating and withstanding in guide sleeve (10c) side wall outside from locating piece (10b) is fixed on positioning hole (10b1) It is interior.

10. bent axle puncher according to claim 9, it is characterised in that described locating piece (10b) is pacified provided with bar shaped Fill hole (10b2), described locating piece (10b) and plate body (10a) are by through bar shaped mounting hole (10b2) and penetrating plate body Positioning screw (10e) in (10a) is mutually fixed.