CN114951738B

CN114951738B - Axle drilling tool

Info

Publication number: CN114951738B
Application number: CN202210636940.4A
Authority: CN
Inventors: 吴春艳; 李俊; 周吉林
Original assignee: Chongqing Rundou Precision Machinery Co ltd; Chongqing College of Electronic Engineering
Current assignee: Chongqing Rundou Precision Machinery Co ltd; Chongqing College of Electronic Engineering
Priority date: 2022-06-07
Filing date: 2022-06-07
Publication date: 2023-06-27
Anticipated expiration: 2042-06-07
Also published as: CN114951738A

Abstract

The invention discloses an axle drilling tool which comprises a support, a drilling mechanism, a rotating mechanism and a clamping mechanism, wherein the drilling mechanism is provided with a drill bit and used for drilling an axle, the rotating mechanism is arranged on the support, the clamping mechanism is used for clamping and fixing the axle on the rotating mechanism, and the rotating mechanism is used for driving the axle to rotate by taking the axle center as a rotation center, so that the side surface of the axle, which needs to be drilled, faces the drill bit. Due to the adoption of the technical scheme, the axle drilling tool is high in use flexibility and drilling efficiency.

Description

Axle drilling tool

Technical Field

The application relates to the technical field of tool fixtures, in particular to an axle drilling tool.

Background

During axle production, drilling holes in the axle are required. During drilling, the axle is installed and fixed on an axle drilling tool, and then the position, needing to be drilled, on the axle is drilled through a drilling machine. After the axle clamping is fixed on the existing axle drilling tool, the axle cannot rotate around the axial lead of the axle, and the angle of the axle cannot be adjusted, so that the drilling machine can only drill holes on one side face of the axle, and if the drilling machine needs to drill holes on the other side face of the axle, the axle needs to be clamped again, and the side face orientation during axle clamping is changed. Therefore, the existing axle drilling tool has poor use flexibility and low drilling efficiency.

Disclosure of Invention

Aiming at the defects of the prior art, the technical problem to be solved by the application is to provide the axle drilling tool with good use flexibility.

In order to solve the technical problem, the application provides an axle drilling tool, which comprises a support, a drilling mechanism, a rotating mechanism and a clamping mechanism, wherein the drilling mechanism is provided with a drill bit and is used for drilling an axle, the rotating mechanism is arranged on the support and is used for clamping and fixing the axle on the rotating mechanism, and the rotating mechanism is used for driving the axle to rotate by taking the axle center as a rotation center, so that the side surface of the axle, needing to be drilled, faces the drill bit.

Further, rotary mechanism is including locating support frame on the support frame, locate arc guide rail on the support frame, locate on the arc guide rail and can wind follow arc guide rail makes arc pivoted arc rack, with arc rack meshing's gear and locate be used for the drive on the support gear pivoted first motor, clamping mechanism locates in the arc rack, the arc guide rail with all be formed with on the arc rack and be used for supplying the axle is put into the fracture in the arc rack.

Further, the arc-shaped rack comprises a main rack, a groove formed in the outer cambered surface of the main rack in a recessed manner along the length direction of the main rack, and a pair of racks which are positioned in the groove and are matched with the groove, the first end of each pair of racks penetrates through the end face of the first end of the main rack, the second end of each pair of racks is positioned between the end face of the first end of the main rack and the meshing position of the main rack and the gear, the first end of each main rack is provided with a first screw hole which is radially arranged along the first screw hole, a first bolt with a screwing end facing the pair of racks is screwed into the first screw hole, one end of each first screw hole penetrates through the bottom wall of the groove, the other end of each first screw hole penetrates through the inner cambered surface of the main rack, a plug part which is used for being plugged with the first screw hole is arranged on the inner cambered surface of the pair of racks, the plug part comprises a containing hole which is formed on the inner cambered surface of the pair of racks and has a diameter smaller than that of the first screw hole, a first spring which is arranged in the containing hole, a first stop post which is arranged on the inner end of the containing hole and the first spring which is arranged on the side of the first spring, a moving post which is matched with the inner end of the first stop post, and the inner end of the plug is arranged on the inner side of the main post, which is positioned on the inner side of the moving post, which is located on the moving post, and the inner end of the moving post; an arc-shaped plate with an inner cambered surface facing the auxiliary rack is arranged at the position, corresponding to the auxiliary rack, of the outer side of the auxiliary rack, the inner cambered surface of the arc-shaped plate is matched with the outer cambered surface of the auxiliary rack, the inner cambered surface of the arc-shaped plate is propped against the outer cambered surface of the auxiliary rack, the arc-shaped plate is fixedly arranged on the support frame, a connecting block is arranged at one end, close to the first end of the main rack, of the auxiliary rack, the outer side surface of the connecting block is matched with the inner cambered surface of the arc-shaped plate, the outer side of connecting block is equipped with the draw-in groove of sphere shape, the intrados of arc with the position department that the draw-in groove corresponds is equipped with the pore, be equipped with in the pore with draw-in groove complex card ball and be used for with the card ball inwards pushes away to the second spring of draw-in groove, the open position of pore is equipped with and is used for preventing the second spring is with the card ball is released completely the chimb of pore.

Further, the clamping mechanism comprises a mounting plate fixedly arranged on the main rack, a clamping plate arranged above the mounting plate and a plurality of second bolts which are in threaded connection with the mounting plate and are used for downwards compressing the clamping plate, a plurality of second screw holes are formed in the mounting plate, through holes are formed in the clamping plate at positions corresponding to the second screw holes, and the screwed-in ends of the second bolts penetrate through the through holes and are then screwed into the second screw holes.

Further, the axle drilling tool further comprises two supporting parts which are respectively arranged at two sides of the rotating mechanism and used for supporting two ends of the axle, and a pressing part which is arranged on the supporting parts and used for pressing the axle on the supporting parts.

Further, the supporting part is including locating on the support and be on a parallel with the slide rail of the axial lead of arc rack, sliding fit in slider on the slide rail, locate diaphragm on the slider and locate the longitudinal plate on the diaphragm, be equipped with the V-arrangement groove on the longitudinal plate, when the middle part of axle supports on the mounting panel, the tip support of axle is in on the both sides wall of V-arrangement groove, the lower extreme of longitudinal plate sets firmly on the diaphragm, be equipped with vertical piece on the diaphragm, the lower extreme of vertical piece is equipped with the transverse piece, be equipped with the third screw on the transverse piece, the third bolt that the spiro union had in the third screw, the screw-in end of third bolt supports downwards the support.

Further, the pressing part comprises a driving device arranged on the transverse plate and a pressing plate connected to an output shaft of the driving device and used for pressing the axle in the V-shaped groove.

Further, the support includes the seat frame, the activity set up in the first bedplate at seat frame top, set firmly in on the seat frame and be located the second bedplate of first bedplate below and locate on the second bedplate be used for the drive the elevating system that first bedplate goes up and down, rotary mechanism with supporting part all locates on the first bedplate.

Further, the lifting mechanism comprises a second motor, a speed reducer and a screw rod lifter, wherein the second motor, the speed reducer and the screw rod lifter are arranged on the second seat plate, an input shaft of the speed reducer is connected with an output shaft of the first motor, an input shaft of the screw rod lifter is connected with an input shaft of the speed reducer, and an output shaft of the screw rod lifter faces upwards and is connected with the first seat plate.

Further, the support also comprises a third seat plate fixedly arranged at the top of the seat frame, the drilling mechanism comprises a cross sliding table arranged on the third seat plate and a drilling machine arranged on the cross sliding table, one shaft of the cross sliding table is parallel to the shaft axis of the axle, the other shaft of the cross sliding table is perpendicular to the shaft axis of the axle, the drilling machine is arranged on the other shaft of the cross sliding table, and the drill bit is arranged on the drilling machine.

Due to the adoption of the technical scheme, the invention has the beneficial effects that:

the axle clamp is fixed on the rotating mechanism through the clamping mechanism, the rotating mechanism drives the axle to rotate by taking the axle center as the rotating center, the side surface of the axle, which needs to be drilled, faces the drill bit, and the drill bit can be driven by the drilling mechanism to drill the axle. After the hole on one side surface of the axle is drilled, the rotating mechanism drives the axle to rotate again by taking the axle center as the rotating center, so that other side surfaces needing to be drilled on the axle face the drill bit, and the drill bit is driven to drill the axle again through the drilling mechanism. The drilling can be carried out on each side face of the axle by repeating the process, so that the use flexibility is high and the drilling efficiency is high.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

FIG. 1 is a top view of a preferred embodiment of an axle drilling tool of the present invention;

FIG. 2 is an enlarged view of a in FIG. 1;

FIG. 3 is a cross-sectional view A-A of FIG. 1;

FIG. 4 is an enlarged view of b in FIG. 3;

FIG. 5 is an enlarged view of c in FIG. 4;

FIG. 6 is an enlarged view of d in FIG. 3;

fig. 7 is an elevation view of an axle drilling tool of fig. 1.

Reference numerals in the drawings include:

1. a drill bit; 2. a mounting; 3. a first seat plate; 4. a second seat plate; 5. three seat boards; 6. a cross sliding table; 7. a drilling machine; 8. a support frame; 9. an arc-shaped guide rail; 10. an arc-shaped rack; 11. a gear; 12. a first motor; 13. an arc-shaped guide groove; 14. arc-shaped conducting bars; 15. a main rack; 16. a groove; 17. a secondary rack; 18. a first screw hole; 19. a first bolt; 20. a first spring; 21. a moving column; 22. a baffle ring; 23. a plug pin; 24. an arc-shaped plate; 25. a connecting block; 26. a clamping groove; 27. ball clamping; 28. a second spring; 29. a convex edge; 30. a mounting plate; 31. a clamping plate; 32. a second bolt; 33. a slide rail; 34. a slide block; 35. a cross plate; 36. a longitudinal plate; 37. a V-shaped groove; 38. a vertical block; 39. a transverse block; 40. a third bolt; 41. a driving device; 42. a pressing plate; 43. a second motor; 44. a speed reducer; 45. a screw rod lifter.

Detailed Description

For the purposes, technical solutions and advantages of the present application, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

As shown in fig. 1, an embodiment of an axle drilling tool according to the present invention includes a support, a drilling mechanism, a rotating mechanism, and a clamping mechanism, wherein the drilling mechanism has a drill bit 1, the drilling mechanism is used for drilling the axle, the rotating mechanism is disposed on the support, the clamping mechanism is used for clamping and fixing the axle on the rotating mechanism, and the rotating mechanism is used for driving the axle to rotate with the axle center as a rotation center, so that a side surface of the axle to be drilled faces the drill bit 1. The axle drilling tool has the advantages of high use flexibility and high drilling efficiency, the axle clamp is fixedly arranged on the rotating mechanism through the clamping mechanism, the rotating mechanism drives the axle to rotate by taking the axle center as the rotating center, the side surface of the axle, which needs to be drilled, faces the drill bit 1, and the drill bit 1 is driven by the drilling mechanism to drill the axle. After the hole on one side surface of the axle is drilled, the rotating mechanism drives the axle to rotate again by taking the axle center as the rotation center, so that other side surfaces needing to be drilled on the axle face the drill bit 1, and the drill bit 1 is driven by the drilling mechanism to drill the axle again. The drilling of each side of the axle can be performed by repeating the above process.

As shown in fig. 1 and 7, the support comprises a seat frame 2, a first seat board 3, a second seat board 4 and a third seat board 5, wherein the first seat board 3 is movably arranged at the top of the seat frame 2, the second seat board 4 is fixedly arranged on the seat frame 2, the second seat board 4 is positioned below the first seat board 3, the third seat board 5 is fixedly arranged at the top of the seat frame 2, the drilling mechanism is arranged on the third seat board 5, and the rotating mechanism is arranged on the first seat board 3.

The drilling mechanism comprises a cross sliding table 6 and a drilling machine 7, the cross sliding table 6 is arranged on the third seat board 5, the drilling machine 7 is arranged on the cross sliding table 6, one shaft of the cross sliding table 6 is parallel to the shaft line of the axle, namely after the axle is clamped on the axle drilling tool, one shaft of the cross sliding table 6 is parallel to the shaft line of the axle, the other shaft of the cross sliding table 6 is perpendicular to the shaft line of the axle, namely after the axle is clamped on the axle drilling tool, the other shaft of the cross sliding table 6 is perpendicular to the shaft line of the axle, the drilling machine 7 is arranged on the other shaft of the cross sliding table 6, and the drill bit 1 is arranged on the drilling machine 7. After the axle is mounted on the rotating mechanism, the drilling machine 7 can be driven to slide along the axle of the cross sliding table 6 through the cross sliding table 6, the position of the drill bit 1 relative to the axial direction of the axle is changed, the axial position of the axle to be drilled can be aligned through changing the position of the drill bit 1 after the axle is clamped, the use is more flexible and convenient, and the drilling machine 7 can be driven to move towards the axle through the cross sliding table 6 and drill the axle.

As shown in fig. 1, fig. 2 and fig. 3, rotary mechanism includes support frame 8, arc guide rail 9, arc rack 10, gear 11 and first motor 12, support frame 8 locates on the support, specifically, support frame 8 locates on the first bedplate 3, arc guide rail 9 set firmly in on the support frame 8, arc rack 10 locates on the arc guide rail 9, specifically, be equipped with arc guide slot 13 along its length direction on the arc guide rail 9, be equipped with on the side of arc rack 10 with arc guide slot 13 complex arc guide bar 14, so that arc rack 10 can wind the edge arc guide rail 9 makes arc rotation, arc guide rail 9 is two, and two arc guide rail 9 all fix on the support frame 8, two arc guide rail 9 will arc rack 10 presss from both sides in the middle, so that arc rack 10 can not drop from support frame 8, can understand, in some embodiments, arc guide rail 9 can also be one, one guide rail 9 is fixed on the support frame 8 and be located arc guide rail 10 is located on one side of arc guide rail 10, can prevent that arc guide rail 10 from falling off from this arc guide rail 8. The gear 11 is meshed with the arc-shaped rack 10, the first motor 12 is arranged on the support, particularly on the first seat board 3, the first motor 12 is used for driving the gear 11 to rotate, and the clamping mechanism is arranged in the arc-shaped rack 10. The arc guide rail 9 and the arc rack 10 are respectively provided with a fracture used for placing the axle into the arc rack 10, so that the axle can be conveniently placed into a range surrounded by the arc guide rail 9 and the arc rack 10 through the arc guide rail 9 and the fracture on the arc rack 10. After the clamping mechanism clamps the axle on the rotating mechanism, the first motor 12 is enabled to drive the gear 11 to rotate, the gear 11 drives the arc-shaped rack 10 to rotate, and the arc-shaped rack 10 can drive the clamping mechanism and the axle to rotate so as to enable the side surface of the axle, which needs to be drilled, to rotate towards the drill bit 1.

As shown in fig. 3, fig. 4, fig. 5 and fig. 6, the arc-shaped rack 10 includes a main rack 15, a groove 16 and an auxiliary rack 17, the arc-shaped conducting bar 14 is disposed on the main rack 15, so that the main rack 15 can rotate around the arc-shaped guide rail 9, the groove 16 is formed on the outer arc surface of the main rack 15 along the length direction of the main rack 15 in a concave manner, the teeth of the main rack 15 are disposed on one side of the main rack 15, which is far away from the center of the circle, and are external teeth, and the outer arc surface of the main rack 15 is an arc surface formed by one end of each tooth on the main rack 15, which is far away from the center of the main rack 15. The auxiliary rack 17 is located in the groove 16, the auxiliary rack 17 is matched with the groove 16, a first end of the auxiliary rack 17 penetrates through an end face of a first end of the main rack 15, and a second end of the auxiliary rack 17 is located between the end face of the first end of the main rack 15 and a meshing position of the main rack 15 and the gear 11. A first screw hole 18 is formed at a first end of the main rack 15, the first screw hole 18 is arranged along the radial direction of the main rack 15, a first bolt 19 is screwed in the first screw hole 18, the end surface of the screwed-in end of the first bolt 19 is matched with the intrados of the auxiliary rack 17, the screwed-in end of the first bolt 19 faces the auxiliary rack 17, one end of the first screw hole 18 penetrates through the bottom wall of the groove 16, the other end of the first screw hole 18 penetrates through the intrados of the main rack 15, a plugging part is arranged on the intrados of the auxiliary rack 17 and used for plugging with the first screw hole 18, the plugging part comprises a containing hole, a first spring 20, a moving post 21, a baffle ring 22 and a plug pin 23, the diameter of the containing hole is smaller than that of the first screw hole 18, the containing hole is formed on the intrados of the auxiliary rack 17, the first spring 20 is arranged in the containing hole, one end of the first screw hole 18 penetrates through the bottom wall of the groove 16, the other end of the first screw hole 18 penetrates through the intrados of the main rack 15, the plug pin 21 is arranged on the inner end of the first spring 20 and the baffle ring 21 is matched with the inner end of the plug pin 23, and the plug pin 23 is arranged on the inner end of the plug pin 23, and the plug pin 23 is prevented from rotating along with the moving post 21 and the inner end of the plug pin 23; the outer side of the auxiliary rack 17 is provided with an arc-shaped plate 24 with an inner arc surface facing the auxiliary rack 17 at a position corresponding to the auxiliary rack 17, the inner arc surface of the arc-shaped plate 24 is matched with the outer arc surface of the auxiliary rack 17, the teeth of the auxiliary rack 17 are arranged on one side, deviating from the center of the circle, of the auxiliary rack 17, namely, the outer teeth are outer teeth, and the outer arc surface of the auxiliary rack 17 is an arc surface formed by one end, deviating from the center of the circle, of each tooth on the auxiliary rack 17. The intrados of arc 24 support in the extrados of vice rack 17, arc 24 set firmly in on the support frame 8, be equipped with connecting block 25 on the vice rack 17, connecting block 25 is located vice rack 17 is close to the one end of the first end of main rack 15, the lateral surface of connecting block 25 with arc 24's intrados looks adaptation, the lateral surface of connecting block 25 is equipped with the draw-in groove 26 of sphere shape, arc 24's intrados with the position department that corresponds of draw-in groove 26 is equipped with the pore, be equipped with in the pore with draw-in groove 26 complex draw-in ball 27 and be used for with draw-in ball 27 inwards push to the second spring 28 of draw-in groove 26, the open position in pore is equipped with and is used for preventing second spring 28 is with draw-in ball 27 is fully released out the chimb 29 of pore. In the initial state, the inner arc surface of the arc plate 24 abuts against the outer arc surface of the auxiliary rack 17, the auxiliary rack 17 is kept in the groove 16, the inner end of the bolt 23 abuts against the bottom wall of the groove 16, the clamping ball 27 is pressed in the clamping groove 26 by the second spring 28 under the thrust of the second spring 28, and the screwing end of the first bolt 19 is spaced from the inner end of the first screw hole 18. When the axle needs to be rotated and the angle of the axle is adjusted, the first motor 12 drives the gear 11 to rotate, so that the gear 11 drives the main rack 15 to rotate on the arc-shaped guide rail 9 towards the extending direction of the second end of the main rack 15, and at the moment, the auxiliary rack 17 is kept in place and cannot move because the clamping ball 27 is clamped in the clamping groove 26 under the thrust action of the second spring 28. After the main rack 15 moves a certain distance, the pin 23 is aligned with the inner end of the first screw hole 18, and at this time, under the thrust of the first spring 20, the moving post 21 and the pin 23 move toward the first screw hole 18, and the pin 23 is inserted into the first screw hole 18. In the subsequent rotation of the main rack 15, the bolt 23 is supported on the hole wall of the first screw hole 18, the main rack 15 pulls the auxiliary rack 17 to rotate together, the auxiliary rack 17 can move relative to the arc plate 24, and the clamping ball 27 can be disengaged from the clamping groove 26 and completely pressed into the hole. After the main rack 15 moves a certain distance again, one end of the auxiliary rack 17, which is close to the gear 11, is pulled to the gear 11 position by the main rack 15 and is meshed with the gear 11, after the first end of the main rack 15 rotates to be separated from the gear 11, the gear 11 can still further drive the auxiliary rack 17 to rotate, and the auxiliary rack 17 can push the main rack 15 to continue rotating through the bolt 23, so that the first motor 12 must be stopped before the auxiliary rack 17 is completely separated from the arc plate 24. By arranging the auxiliary rack 17, the rotation angle of the main rack 15 can be increased, and the axle rotation angle is further increased. When the main rack 15 and the auxiliary rack 17 are reset, the motor is controlled to reversely rotate, the motor drives the gear 11 to rotate, the gear 11 drives the auxiliary rack 17 to rotate first, the auxiliary rack 17 pulls the main rack 15 to rotate through the bolt 23, after the main rack 15 is meshed with the gear 11, the auxiliary rack 17 is separated from the gear 11, the main rack 15 rotates and pushes the auxiliary rack 17 through the bolt 23 until the auxiliary rack 17 is completely reset, and the second spring 28 pushes the clamping ball 27 to be clamped into the clamping groove 26. Then, the first motor 12 is stopped, the first bolt 19 is rotated in the first screw hole 18, the first bolt 19 is moved towards the outer end of the first screw hole 18 and the bolt 23 is extruded into the accommodating hole until the end face of the screwed end of the first bolt 19 is leveled with the bottom wall of the groove 16, the first bolt 19 cannot penetrate into the accommodating hole because the diameters of the first screw hole 18 and the first bolt 19 are larger than the diameter of the accommodating hole, and when the screwed end of the first bolt 19 is abutted against the intrados surface of the auxiliary rack 17, the first bolt 19 cannot be continuously rotated, so that whether the first bolt 19 moves towards the auxiliary rack 17 or not can be conveniently determined. At this time, the latch 23 is completely pressed into the receiving hole, the inner end of the latch 23 is flat with the bottom wall of the groove 16, and the latch 23 loses the blocking of the first screw hole 18. The motor is restarted, so that the motor continues to drive the main rack 15 to rotate until the main rack 15 rotates to the initial position. It is convenient to reset the main rack 15 and the sub rack 17.

As shown in fig. 1 and 3, the clamping mechanism includes a mounting plate 30, a clamping plate 31 and a second bolt 32, the mounting plate 30 is fixedly arranged on the main rack 15, the clamping plate 31 is arranged above the mounting plate 30, and the number of the second bolts 32 is four, and in other embodiments, the number of the second bolts 32 may be other. The second bolts 32 are in threaded connection with the mounting plate 30, the second bolts 32 are used for pressing the clamping plates 31 downwards, and four second screw holes are formed in the mounting plate 30, and in other embodiments, the second screw holes can be in other numbers, and only the second screw holes and the second bolts 32 are required to be in one-to-one correspondence. The clamping plate 31 is provided with a through hole at a position corresponding to each second screw hole, and the screwed end of the second bolt 32 passes through the through hole and then is screwed into the second screw hole. After the axle is placed in the range enclosed by the arc-shaped guide rail 9 and the arc-shaped rack 10 through the arc-shaped guide rail 9 and the arc-shaped rack 10, the middle part of the axle is supported on the mounting plate 30, the clamping plate 31 presses the axle on the mounting plate 30, then the screwing end of the second bolt 32 penetrates through the through hole and is screwed into the second screw hole, the second bolt 32 is screwed, the bolt head of the second bolt 32 is pressed down to the clamping plate 31, and the clamping plate 31 can press the middle part of the axle on the mounting plate 30. The axle can be clamped and fixed on the rotating mechanism.

As shown in fig. 1, 2 and 7, the axle drilling tool further comprises two supporting parts and a pressing part, the two supporting parts are arranged on the first seat board 3, the two supporting parts are respectively arranged on two sides of the rotating mechanism, the two supporting parts are respectively used for supporting two ends of the axle, the pressing part is arranged on the supporting part, and the pressing part is used for pressing the axle on the supporting part. Through two supporting part and the combined action of compressing tightly portion can with the axle carries out further fixed, when drilling, the axle is difficult to take place the skew, can improve the drilling precision of axle.

The supporting part comprises a sliding rail 33, a sliding block 34, a transverse plate 35 and a longitudinal plate 36, wherein the sliding rail 33 is arranged on the support, in particular on the first seat plate 3, the sliding rail 33 is parallel to the axial line of the arc-shaped rack 10, after the axle is arranged on the axle drilling tool, the sliding rail 33 is parallel to the axial line of the axle, the sliding block 34 is slidably matched with the sliding rail 33, the transverse plate 35 is arranged on the sliding block 34, the longitudinal plate 36 is arranged on the transverse plate 35, a V-shaped groove 37 is formed in the longitudinal plate 36, when the middle part of the axle is supported on the mounting plate 30, the end part of the axle is supported on two side walls of the V-shaped groove 37, the lower end of the longitudinal plate 36 is fixedly arranged on the transverse plate 35, a vertical block 38 is arranged on the transverse plate 35, the lower end of the vertical block 38 is provided with a transverse block 39, the transverse block 39 is provided with a third screw hole, a third bolt 40 is screwed in the third screw hole, and the end of the third bolt 40 is supported downwards. After the axle is clamped and fixed on the rotating mechanism, the end parts of the axle are supported on the two side walls of the V-shaped groove 37, and the V-shaped groove 37 can play a limiting role on the installation position of the axle. The transverse plate 35 can be moved on the sliding rail 33 towards or away from the rotating mechanism, so that the axles with different lengths in a certain range can be supported, and the application range is wide. The third bolt 40 is rotated in the third screw hole, so that the screwed end of the third bolt 40 abuts against the first seat plate 3, that is, the transverse plate 35 is limited to the first seat plate 3 and cannot move, and the third bolt 40 is rotated in the third screw hole, so that the screwed end of the third bolt 40 is loosened from the support, and the transverse plate 35 can move on the support continuously.

The pressing part comprises a driving device 41 and a pressing plate 42, the driving device 41 can be an air cylinder, a hydraulic cylinder or a push rod motor, the driving device 41 is fixedly arranged on the transverse plate 35, the pressing plate 42 is connected to an output shaft of the driving device 41, and the pressing plate 42 is used for pressing the axle in the V-shaped groove 37. After the angle adjustment of the axle is completed, the side surface of the axle, which needs to be drilled, faces the drill bit 1, and the pressing plate 42 is driven by the driving device 41 to move downwards, so that the pressing plate 42 presses the end part of the axle into the V-shaped groove 37, and good fixing of the axle can be achieved.

The support also comprises a lifting mechanism which is arranged on the second seat board 4 and used for driving the first seat board 3 to lift, the lifting mechanism comprises a second motor 43, a speed reducer 44 and a screw rod lifter 45, the second motor 43, the speed reducer 44 and the screw rod lifter 45 are all arranged on the second seat board 4, an input shaft of the speed reducer 44 is connected with an output shaft of the first motor 12, an input shaft of the screw rod lifter 45 is connected with an output shaft of the speed reducer 44, and an output shaft of the screw rod lifter 45 faces upwards and is connected with the first seat board 3. The first seat board 3 can be driven to lift through the lifting of the screw rod lifter 45, so that the height of an axle installed on the rotating mechanism is adjusted, and the position, needing to be drilled, of the axle is conveniently aligned with the drill bit 1 in the height direction.

The use principle is as follows: the axle is placed in the range surrounded by the arc-shaped guide rail 9 and the arc-shaped rack 10 through the arc-shaped guide rail 9 and the arc-shaped rack 10, the middle part of the axle is supported on the mounting plate 30, the clamping plate 31 clamps the axle on the mounting plate 30, then the screwing end of the second bolt 32 penetrates through the through hole and then is screwed into the second screw hole, the second bolt 32 is screwed, the bolt head of the second bolt 32 is downwards pressed against the pressing plate 42, the axle clamp is fastened on the rotating mechanism, and at the moment, the two ends of the axle are respectively supported in the two V-shaped grooves 37. The axle is driven by the rotating mechanism to rotate by taking the axle center as the rotation center, so that the side surface of the axle, which needs to be drilled, faces the drill bit 1. The pressing plate 42 is driven by the driving device 41 to press the end part of the axle into the V-shaped groove 37, so that the axle is stably fixed. Then the first seat board 3 is driven to lift by the lifting mechanism so as to adjust the relative height of the axle and the drill bit 1, after the axle is adjusted to a proper height, the cross sliding table 6 drives the drilling machine 7 to move parallel to the axis of the axle, so that the drill bit 1 is accurately aligned to the position on the axle, which needs to be drilled, and at the moment, the cross sliding table 6 can drive the drilling machine 7 to move towards the axle and drill the axle.

The foregoing examples only represent preferred embodiments of the present invention, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. Axle drilling frock, its characterized in that: the drilling device comprises a support, a drilling mechanism, a rotating mechanism and a clamping mechanism, wherein the drilling mechanism is provided with a drill bit and is used for drilling the axle, the rotating mechanism is arranged on the support, the clamping mechanism is used for clamping and fixing the axle on the rotating mechanism, and the rotating mechanism is used for driving the axle to rotate by taking the axle center as a rotation center, so that the side surface of the axle, which is required to be drilled, faces the drill bit; the rotating mechanism comprises a support frame arranged on the support frame, an arc-shaped guide rail arranged on the support frame, an arc-shaped rack arranged on the arc-shaped guide rail and capable of rotating around an arc along the arc-shaped guide rail, a gear meshed with the arc-shaped rack and a first motor arranged on the support frame and used for driving the gear to rotate, the clamping mechanism is arranged in the arc-shaped rack, and the arc-shaped guide rail and the arc-shaped rack are both provided with a fracture used for placing the axle into the arc-shaped rack; the arc-shaped rack comprises a main rack, a groove formed in the outer cambered surface of the main rack in a recessed manner along the length direction of the main rack, and a pair of racks which are positioned in the groove and are matched with the groove, wherein the first end of each pair of racks penetrates through the end face of the first end of the main rack, the second end of each pair of racks is positioned between the end face of the first end of the main rack and the meshing position of the main rack and the gear, the first end of each main rack is provided with a first screw hole which is radially arranged along the first screw hole, a first bolt with a screwing end facing the pair of racks is screwed into the first screw hole, one end of each first screw hole penetrates through the bottom wall of the groove, the other end of each first screw hole penetrates through the inner cambered surface of the main rack, a plug part which is used for being plugged with the first screw hole is arranged on the inner cambered surface of each pair of racks, the plug part comprises a containing hole which is smaller than the first screw hole, a first spring which is arranged in the containing hole, a first plug which is arranged on the inner end side of the first spring and is matched with the containing hole, a plug pin which is arranged on the inner side of the first spring, and the plug pin is arranged on the inner side of the containing hole and the inner side of the plug pin is arranged on the inner side of the moving post; an arc-shaped plate with an inner cambered surface facing the auxiliary rack is arranged at the position, corresponding to the auxiliary rack, of the outer side of the auxiliary rack, the inner cambered surface of the arc-shaped plate is matched with the outer cambered surface of the auxiliary rack, the inner cambered surface of the arc-shaped plate is propped against the outer cambered surface of the auxiliary rack, the arc-shaped plate is fixedly arranged on the support frame, a connecting block is arranged at one end, close to the first end of the main rack, of the auxiliary rack, the outer side surface of the connecting block is matched with the inner cambered surface of the arc-shaped plate, the outer side of connecting block is equipped with the draw-in groove of sphere shape, the intrados of arc with the position department that the draw-in groove corresponds is equipped with the pore, be equipped with in the pore with draw-in groove complex card ball and be used for with the card ball inwards pushes away to the second spring of draw-in groove, the open position of pore is equipped with and is used for preventing the second spring is with the card ball is released completely the chimb of pore.

2. The axle drilling tool of claim 1, wherein: the clamping mechanism comprises a mounting plate fixedly arranged on the main rack, a clamping plate arranged above the mounting plate and a plurality of second bolts which are in threaded connection with the mounting plate and are used for downwards compressing the clamping plate, a plurality of second screw holes are formed in the mounting plate, through holes are formed in positions, corresponding to the second screw holes, of the clamping plate, and the screwing-in ends of the second bolts penetrate through the through holes and then are screwed into the second screw holes.

3. The axle drilling tool of claim 2, wherein: the axle drilling tool further comprises two supporting parts which are respectively arranged on two sides of the rotating mechanism and used for supporting two ends of the axle, and a pressing part which is arranged on the supporting parts and used for pressing the axle on the supporting parts.

4. An axle drilling tool as defined in claim 3, wherein: the supporting part is including locating on the support and be on a parallel with slide rail, the sliding fit of the axial lead of arc rack in slide rail is last, locate diaphragm on the slide block and locate the longitudinal plate on the diaphragm, be equipped with the V-arrangement groove on the longitudinal plate, works as the middle part of axle supports when on the mounting panel, the tip of axle supports on the both sides wall of V-arrangement groove, the lower extreme of longitudinal plate is fixed in on the diaphragm, be equipped with vertical piece on the diaphragm, the lower extreme of vertical piece is equipped with the transverse piece, be equipped with the third screw on the transverse piece, the third bolt that the spiro union had in the third screw, the screw-in end of third bolt supports downwards the support.

5. The axle drilling tool of claim 4, wherein: the pressing part comprises a driving device arranged on the transverse plate and a pressing plate connected to an output shaft of the driving device and used for pressing the axle in the V-shaped groove.

6. An axle drilling tool as defined in claim 3, wherein: the support comprises a seat frame, a first seat plate movably arranged at the top of the seat frame, a second seat plate fixedly arranged on the seat frame and positioned below the first seat plate, and a lifting mechanism arranged on the second seat plate and used for driving the first seat plate to lift, wherein the rotating mechanism and the supporting part are both arranged on the first seat plate.

7. The axle drilling tool of claim 6, wherein: the lifting mechanism comprises a second motor, a speed reducer and a screw rod lifter, wherein the second motor, the speed reducer and the screw rod lifter are arranged on the second seat plate, an input shaft of the speed reducer is connected with an output shaft of the second motor, an input shaft of the screw rod lifter is connected with an output shaft of the speed reducer, and an output shaft of the screw rod lifter faces upwards and is connected with the first seat plate.

8. The axle drilling tool of claim 6, wherein: the support also comprises a third seat plate fixedly arranged at the top of the seat frame, the drilling mechanism comprises a cross sliding table arranged on the third seat plate and a drilling machine arranged on the cross sliding table, one shaft of the cross sliding table is parallel to the shaft axis of the axle, the other shaft of the cross sliding table is perpendicular to the shaft axis of the axle, the drilling machine is arranged on the shaft of the cross sliding table, which is perpendicular to the shaft axis of the axle, and the drill bit is arranged on the drilling machine.