One-time machining equipment for automobile axle housing screw holes

Abstract

The utility model provides one-time machining equipment for automobile axle housing screw holes. The one-time machining equipment comprises a lathe bed, a workbench, a positioning and pressing mechanism, a drilling mechanism and a displacement mechanism. The positioning and pressing mechanism is arranged on the workbench and used for fixing and pressing the axle housing to the workbench. The drilling mechanism can be horizontally and movably arranged on the lathe bed, and the drilling mechanism is provided with a plurality of drill bits consistent with screw holes in the drilling face of the axle housing in arrangement position and used for drilling the screw holes in the drilling face of the axle housing; the displacement mechanism is used for driving the drilling mechanism to get close to or get away from the axle housing drilling face in the horizontal direction. And the workbench is fixedly connected with the lathe bed. A plurality of screw holes in the drilling face of the automobile axle housing can be machined at a time through a plurality of drill bits at a stroke, the production efficiency of the axle housing is greatly improved, and meanwhile the labor intensity of workers is reduced. And the drilling mechanism adopts a fixed-axis planetary gear train and a high-precision drill bit, so that the machining precision and the bearing capacity of the equipment are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment automation, in particular to one-time processing equipment for automobile axle housing screw holes. Background Art

[0002] The drive axle housing is a key component for transmitting power and carrying loads in automobiles. It features diverse structural forms and requires numerous machining processes, with the processing requirements for the scalloped screw holes being particularly critical. As crucial screw holes connecting the drive axle housing to the final reducer housing, they not only affect the lubricant seal within the axle housing but also prevent contaminants from entering and damaging the working environment within the housing. However, machining these screw holes currently relies on manual marking, followed by hoisting to a radial drill to drill each screw hole individually. This process results in low production efficiency and cannot guarantee product precision. Utility Model Content

[0003] The purpose of the utility model is to provide a one-time processing device for automobile axle housing screw holes to solve at least one of the above-mentioned technical problems existing in the prior art.

[0004] In order to solve the above technical problems, the utility model provides a one-time processing device for automobile axle housing screw holes, comprising: a bed, a workbench, a positioning and pressing mechanism, a drilling mechanism and a displacement mechanism;

[0005] The positioning and pressing mechanism is provided on the workbench and is used to fix and press the axle housing on the workbench;

[0006] The drilling mechanism is horizontally movably arranged on the bed, and is provided with a plurality of drill bits that are consistent with the arrangement positions of the screw holes on the drilling surface of the axle housing, for drilling the screw holes on the drilling surface of the axle housing;

[0007] The displacement mechanism is used to drive the drilling mechanism to approach or move away from the axle housing drilling surface in the horizontal direction;

[0008] The workbench is fixedly connected to the bed;

[0009] The positioning and pressing mechanism includes a positioning assembly, which includes a positioning support fixedly arranged on the workbench. A drilling template is fixedly sleeved on the side of the positioning support close to the axle housing and perpendicular to the workbench for positioning the axle housing in the X-axis direction during installation.

[0010] A plurality of positioning cones are fixedly provided on one side of the drilling template close to the axle housing, which are used for guiding and positioning in the Y-axis and Z-axis directions when the axle housing is installed;

[0011] The arrangement position of the positioning cone column is consistent with the arrangement position of the axle housing positioning hole;

[0012] Support racks are provided at intervals on both sides of the positioning support to support the half-axles at both ends of the axle housing;

[0013] The supporting frame is fixedly arranged on the workbench.

[0014] Furthermore, the drilling template is fixed with a plurality of drilling sleeves, and the arrangement of the drilling sleeves is consistent with the position of the screw holes on the drilling surface of the bridge housing.

[0015] Furthermore, the positioning and pressing mechanism further includes a pressing assembly, which includes wedge-shaped pressing blocks that can move along the Z-axis direction and are arranged in opposite directions, and are used to press the drilling surfaces of bridge shells of different thicknesses;

[0016] One end of the wedge-shaped pressure block is fixedly connected to a telescopic mechanism, the telescopic end of the telescopic mechanism is fixedly connected to the wedge-shaped pressure block, and the body of the telescopic mechanism is fixedly arranged on the mounting plate;

[0017] The other end of the wedge-shaped pressing block is arranged in a guide seat, and the guide seat is provided with a guide groove adapted to the shape of the wedge-shaped pressing block;

[0018] The guide seat is fixedly arranged on the mounting plate and is used for guiding the wedge-shaped pressing block when it moves;

[0019] The mounting plate is fixedly arranged on a side of the drilling template away from the bridge housing, and the drilling template is provided with an opening for installing the telescopic mechanism and the guide seat.

[0020] The telescopic mechanism is a telescopic oil cylinder or a telescopic air cylinder.

[0021] Furthermore, the clamping assembly further includes a pressure plate movable along the X-axis direction for clamping the exterior of the axle housing;

[0022] The shape of the pressing surface of the pressure plate is consistent with the external shape of the axle housing;

[0023] A first displacement transmission mechanism is provided on a side of the pressure plate away from the bridge housing. The first displacement transmission mechanism is fixedly provided on the workbench and is used for driving the pressure plate to move.

[0024] The first displacement transmission mechanism is a screw transmission, a rack and pinion transmission, or a belt transmission.

[0025] Preferably, the drilling mechanism further comprises a first drive assembly for driving the drill bit to rotate, wherein the first drive assembly comprises a first drive motor, a reduction box and a gear box;

[0026] The output shaft of the first drive motor is fixedly connected to the input shaft of the reduction gearbox, and the output shaft of the reduction gearbox is fixedly connected to the first gear shaft of the gearbox.

[0027] Furthermore, the first gear shaft is coaxial and the fixed sleeve is provided with a central wheel, the central wheel is circumferentially meshed with a plurality of planetary wheels, and the plurality of planetary wheels can be overlapped along the axial direction;

[0028] The planetary gears are coaxial and the fixed sleeve is provided with a second gear shaft;

[0029] One end of the second gear shaft is fixedly connected to the drill bit;

[0030] The first gear shaft and the second gear shaft are both rotatably disposed on the gear box body.

[0031] Furthermore, the thickness of the central wheel is more than twice the thickness of the planet wheels, so as to enable the planet wheels to be arranged in an overlapping manner along the axial direction.

[0032] Furthermore, the drill bit is an extended conical drill bit, and the extended conical drill bit is sequentially sleeved with an elastic drill sleeve and an extended drill sleeve, due to the support and positioning of the extended conical drill bit.

[0033] Furthermore, the displacement mechanism includes a second drive assembly and a second displacement transmission mechanism; the second drive assembly is used to drive the second displacement transmission mechanism to rotate, and the second displacement transmission mechanism is used to drive the drilling mechanism to move along the X-axis direction;

[0034] The second driving component includes a second driving motor and a reducer.

[0035] The second displacement transmission mechanism is a screw transmission, a rack and pinion transmission, or a belt transmission.

[0036] Preferably, the displacement mechanism further includes a displacement guide mechanism for guiding the drilling mechanism when it moves along the X-axis direction;

[0037] The displacement guide mechanism includes a guide rail fixed and spaced apart on the bed and a sliding seat slidable along the guide rail;

[0038] The sliding seat is fixedly connected to the bottom of the gear box.

[0039] Furthermore, it also includes a cooling and lubrication system for cooling, lubricating and removing chips when the drill bit is working.

[0040] The bed is also provided with a water trough for collecting and discharging waste liquid and waste residue after cooling.

[0041] By adopting the above technical solution, the utility model has the following beneficial effects:

[0042] 1. Through a single stroke of multiple drill bits, multiple screw holes on the drilling surface of the automobile axle housing can be processed at one time, which greatly improves the production efficiency of the axle housing and reduces the labor intensity of workers.

[0043] 2. The design of the wedge-shaped pressure block meets the requirements of compacting the drilling surfaces of bridge shells with different thicknesses. One device can process various types of bridge shells, greatly saving production costs. The design of the arc-shaped pressure plate improves the fit between the pressure plate and the outside of the bridge shell, increases the compaction force, and ensures processing stability.

[0044] 3. The use of fixed-axis planetary gear train and high-precision and high-positioning drill bits improves the processing accuracy and load-bearing capacity of the equipment, thereby improving the processing quality of the product and the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0046] Figure 1 A stereoscopic diagram of a one-time processing device for screw holes of an automobile axle housing provided by an embodiment of the utility model, including an axle housing;

[0047] Figure 2 A three-dimensional diagram of a one-time processing device for automobile axle housing screw holes provided by an embodiment of the utility model;

[0048] Figure 3 A three-dimensional diagram of a partial positioning and pressing component in a one-time processing device for automobile axle housing screw holes provided by an embodiment of the utility model;

[0049] Figure 4 A front view of a partial positioning and pressing assembly in a one-time processing device for automobile axle housing screw holes provided by an embodiment of the utility model;

[0050] Figure 5 for Figure 4 Middle AA section view;

[0051] Figure 6 A partial assembly diagram of a positioning cone column and axle housing in a one-time processing device for screw holes in an automobile axle housing provided by an embodiment of the utility model;

[0052] Figure 7 A top view of a one-time processing device for automobile axle housing screw holes provided by an embodiment of the utility model;

[0053] Figure 8 for Figure 7 A magnified view of point A;

[0054] Figure 9A stereoscopic diagram of the installation of a pressure plate and a T-type lead screw in a one-time processing device for screw holes in an automobile axle housing provided by an embodiment of the utility model;

[0055] Figure 10 A three-dimensional diagram of a gearbox in a one-time processing device for screw holes in an automobile axle housing provided in Example 1 of the utility model;

[0056] Figure 11 A front view of a gearbox in a one-time processing device for screw holes in an automobile axle housing provided by Example 1 of the present utility model;

[0057] Figure 12 for Figure 10 Middle AA section view;

[0058] Figure 13 for Figure 11 Middle AA section view;

[0059] Figure 14 This is a left view of a one-time processing device for automobile axle housing screw holes provided in Example 1 of the utility model.

[0060] Reference numerals:

[0061] 100-bed; 200-workbench; 300-positioning and clamping assembly; 310-positioning assembly; 311-positioning support; 312-drilling template; 313-hard drill sleeve; 314-positioning cone; 315-support; 320-clamping assembly; 321-wedge-shaped pressure block; 322-telescopic cylinder; 323-guide seat; 324-connecting block; 325-mounting plate; 326-pressure plate; 327-T-type screw; 3271-positioning column; 328-screw support; 329-connecting rod; 3291-positioning cone; 400-drilling mechanism; 410-reduction motor; 420-reduction box; 430-gear box; 431-first gear shaft; 432-center wheel; 433-planetary gear; 434-second gear shaft; 440-drill bit, 441-extended conical drill bit; 442-elastic drill sleeve; 443-extended drill sleeve; 450-movable plate; 500-displacement mechanism; 510-servo motor; 520-worm gear reducer; 530-coupling; 540-ball screw; 550-guide rail; 560-sliding seat; 600-cooling and lubrication system; 700-water trough; 800-bridge housing. DETAILED DESCRIPTION

[0062] The present invention will be further explained below in conjunction with specific implementation methods.

[0063] like Figure 1-2As shown, the embodiment provides a one-time processing device for automobile axle housing screw holes, comprising: a bed 100, a workbench 200, a positioning and pressing mechanism 300, a drilling mechanism 400 and a displacement mechanism 500;

[0064] The positioning and pressing mechanism 300 is provided on the workbench 200 and is used to fix and press the axle housing 800 on the workbench 200;

[0065] The drilling mechanism 400 is horizontally movably arranged on the bed 100, and is provided with a plurality of drill bits 440 that are arranged in accordance with the screw holes on the drilling surface of the axle housing 800, for drilling the screw holes on the drilling surface of the axle housing 800;

[0066] The displacement mechanism 500 is used to drive the drilling mechanism 400 to approach or move away from the drilling surface of the axle housing 800 in the horizontal direction;

[0067] The workbench 200 is fixedly connected to the bed 100 .

[0068] In this embodiment, the drilling mechanism 400 is provided with a total of 12 drill bits 440, and the drill bit 440 is an extended conical drill bit 441. The extended conical drill bit 441 is sequentially sleeved with an elastic drill sleeve 442 and an extended drill sleeve 443, which are used to support and position the extended conical drill bits 441440; the extended conical drill bit 441 and the extended drill sleeve 443 both have Morse taper, which greatly improves the positioning accuracy and centering of the drill bit 440.

[0069] like Figure 3-6 The positioning and clamping mechanism 300 includes a positioning assembly 310, which includes a positioning support 311 fixedly mounted on the workbench 200. The positioning support 311 is perpendicular to the workbench 200 and is provided with a drilling template 312 on one side of the axle housing 800 for positioning the axle housing 800 in the X-axis direction during installation.

[0070] A plurality of positioning cones 314 are fixedly provided on one side of the drilling template 312 close to the axle housing 800, which are used for guiding the axle housing 800 during installation and for positioning in the Y-axis and Z-axis directions;

[0071] The layout position of the positioning cone column 314 is consistent with the layout position of the positioning hole of the bridge housing 800;

[0072] The two sides of the positioning support 311 are spaced apart with support racks 315 for supporting the half shafts at both ends of the axle housing 800;

[0073] The supporting frame 315 is fixedly mounted on the workbench 200 .

[0074] A plurality of drill sleeves are fixedly mounted on the drilling template 312 , and the arrangement of the drill sleeves is consistent with the positions of the screw holes on the drilling surface of the axle housing 800 .

[0075] The drill sleeve adopts hard drill sleeve 313 to avoid the drill bit 440 from jumping and being out of center, which reduces the processing quality of the product.

[0076] In this embodiment, four positioning cones 314 are symmetrically arranged at the top, bottom, left and right of the center of the drilling template 312 for positioning the axle housing 800 during installation.

[0077] like Figure 7-8 As shown, the positioning and pressing mechanism 300 further includes a pressing assembly 320, which includes wedge-shaped pressing blocks 321 that are movable along the Z-axis direction and disposed opposite to each other, and is used to press the drilling surfaces of the axle housings 800 of different thicknesses;

[0078] One end of the wedge-shaped pressing block 321 is fixedly connected to a telescopic mechanism, the telescopic end of the telescopic mechanism is fixedly connected to the wedge-shaped pressing block 321, and the body of the telescopic mechanism is fixedly disposed on the mounting plate 325;

[0079] The other end of the wedge-shaped pressing block 321 is inserted into the guide seat 323 , and the guide seat 323 is provided with a guide groove adapted to the shape of the wedge-shaped pressing block 321 ;

[0080] The guide seat 323 is fixedly mounted on the mounting plate 325 and is used to guide the wedge-shaped pressing block 321 during movement.

[0081] The mounting plate 325 is fixedly mounted on a side of the drilling template 312 away from the axle housing 800 . The drilling template 312 is provided with an opening for mounting the telescopic mechanism and the guide seat 323 .

[0082] The telescopic mechanism is a telescopic oil cylinder 322 or a telescopic air cylinder.

[0083] In this embodiment, the telescopic mechanism is a telescopic oil cylinder 322; a connecting block 324 is provided at the telescopic end of the telescopic oil cylinder 322, and the connecting block 324 is fixedly connected to the wedge-shaped pressure block 321;

[0084] In addition, if Figure 2 As shown, it also includes an oil pipe protection cover, which is fixedly set on the cylinder mounting plate 325 to protect the cylinder pipeline and prevent the oil pipe of the telescopic cylinder 322 from being bumped when the bridge housing 800 is installed.

[0085] like Figure 9 As shown, the pressing assembly 320 further includes a pressing plate 326 that can move along the X-axis direction and is used to press the exterior of the axle housing 800;

[0086] The pressing surface of the pressure plate 326 is an arc surface, and the shape of the arc surface is consistent with the external shape of the bridge housing 800;

[0087] A first displacement transmission mechanism is provided on a side of the pressure plate 326 away from the axle housing 800 . The first displacement transmission mechanism is fixedly disposed on the workbench 200 and is used to drive the pressure plate 326 to move.

[0088] The first displacement transmission mechanism is a screw drive, a rack and pinion drive, or a belt drive.

[0089] In this embodiment, the first displacement transmission mechanism is a T-shaped lead screw 327 transmission, and the T-shaped lead screw 327 transmission has a self-locking function, which can effectively prevent the pressure plate 326 from loosening during the processing and affecting the processing quality.

[0090] The T-shaped lead screw 327 is rotatably mounted on a lead screw support 328, which is fixedly connected to the workbench 200. A positioning post 3271 is fixedly mounted on one end of the lead screw 327 for contacting the pressure plate 326, and a clamping portion or through hole is provided on the other end.

[0091] A connecting rod 329 is fixedly provided on the side of the pressure plate 326 away from the axle housing 800. A positioning tapered hole 3291 is provided on the end of the connecting rod 329 close to the T-shaped screw 327 for positioning and connecting the connecting rod 329 when it abuts against the positioning post 3271 of the T-shaped screw 327.

[0092] The cross section of the clamping portion of the T-shaped lead screw 327 is a regular polygon, which is convenient for clamping the wrench; the through hole is convenient for the passage of the driving rod;

[0093] In this embodiment, a through hole is provided at one end of the T-shaped lead screw 327 .

[0094] Preferably, the separable design of the pressure plate 326 and the T-screw 327 in this embodiment increases the space for loading and unloading the bridge housing 800 before and after the bridge housing 800 is tightened and released; at the same time, it also reduces the length and number of rotations of the T-screw 327, thereby improving the tightening efficiency.

[0095] The drilling mechanism 400 further includes a first drive assembly for driving the drill bit 440 to rotate. The first drive assembly includes a first drive motor, a reduction box 420 and a gear box 430.

[0096] The first driving motor is a reduction motor 410;

[0097] The output shaft of the reduction motor 410 is fixedly connected to the input shaft of the reduction box 420 , and the output shaft of the reduction box 420 is fixedly connected to the first gear shaft 431 of the gear box 430 .

[0098] like Figure 10-13 As shown, the first gear shaft 431 is coaxial and fixed with a center wheel 432, and the center wheel 432 is circumferentially meshed with a plurality of planetary wheels 433, and the plurality of planetary wheels 433 can be overlapped along the axial direction;

[0099] The planetary gear 433 is coaxial and fixed with a second gear shaft 434;

[0100] One end of the second gear shaft 434 is fixedly connected to a drill bit 440;

[0101] The first gear shaft 431 and the second gear shaft 434 are both rotatably disposed in the gear box 430 .

[0102] In this embodiment, the number of the second gear shafts 434 is twelve.

[0103] The thickness of the central wheel 432 is more than twice the thickness of the planet wheels 433 , and is used for overlapping arrangement of the planet wheels 433 along the axial direction.

[0104] The thickness of the center wheel 432 is more than twice that of the planet wheels 433 , which facilitates the axial overlapping design of the planet wheels 433 and solves the problem of uneven circumferential distribution of screw holes on the drilling surface of the bridge housing 800 causing interference with the planet wheels 433 .

[0105] like Figure 14 As shown, the displacement mechanism 500 includes a second drive assembly and a second displacement transmission mechanism; the second drive assembly is used to drive the second displacement transmission mechanism to rotate, and the second displacement transmission mechanism is used to drive the drilling mechanism 400 to move along the X-axis direction;

[0106] The second drive assembly includes a second drive motor and a reducer.

[0107] The second displacement transmission mechanism is a screw drive, a rack and pinion drive, or a belt drive.

[0108] In this embodiment, the second drive motor is a servo motor 510 and a worm gear reducer 520, and the second displacement transmission mechanism is a ball screw 540 transmission. The output shaft of the servo motor 510 is fixedly connected to the input shaft of the worm gear reducer 520, and the output shaft of the worm gear reducer 520 is connected to the input end of the ball screw 540 through a coupling 530. The output end of the ball screw 540 is fixedly connected to the gear box 430.

[0109] The ball screw 540 has high transmission accuracy, which can greatly improve the displacement accuracy of the drilling mechanism 400 and thus improve the drilling quality.

[0110] Preferably, the displacement mechanism 500 further includes a displacement guide mechanism for guiding the drilling mechanism 400 when it moves along the X-axis direction;

[0111] The displacement guide mechanism includes two guide rails 550 fixed and arranged parallel to the bed 100 and a sliding seat 560 that can slide along the guide rails 550;

[0112] The sliding seat 560 is fixedly connected to the moving plate 450 , and the moving plate 450 is fixedly disposed on the bottom of the gear box 430 .

[0113] In addition, a cooling and lubrication system 600 is included for cooling, lubricating and removing chips when the drill bit 440 is working;

[0114] The bed 100 is also provided with a water receiving trough 700 for collecting and discharging waste liquid and waste residue after cooling.

[0115] In this embodiment, the cooling and lubricating system 600 is fixedly disposed on the top of the positioning support 311 .

[0116] During operation, the bridge housing 800 is hoisted into place and placed on the supporting racks 315 on both sides. The drilling surface of the bridge housing 800 is buckled on the drilling template 312 through the positioning cone 314. The telescopic end of the telescopic oil cylinder 322 extends to drive the wedge-shaped pressure block 321 to press the drilling surface. The T-shaped lead screw 327 rotates to drive the pressure plate 326 to press the bridge housing 800. The reduction motor 410 drives the multiple drill bits 440 to rotate and start through the reduction box 420 and the gear box 430. The servo motor 510 drives the ball screw through the worm gear reducer 520 and the coupling 530. The lever 540 rotates, and the ball screw 540 drives the drilling mechanism 400 to move forward as a whole to approach the working position, and switches to the working state to start the cutting operation; the cutting fluid flushes, cools and removes slag on the drill bit 440 through the cooling and lubrication system 600; multiple drill bits 440 complete drilling at one time, the drill bit 440 slowly exits the bridge housing 800, and quickly retreats to the waiting position, the drill bit 440 stops rotating, and the wedge-shaped pressure block 321 is retracted under the drive of the telescopic cylinder 322, the pressure plate 326 is released, and the bridge housing 800 is hoisted to the material stamping area to complete the drilling operation.

[0117] The utility model provides a one-time processing device for automobile axle housing screw holes, which has the following advantages:

[0118] 1. Through a single stroke of multiple drill bits, multiple screw holes on the drilling surface of the automobile axle housing can be processed at one time, which greatly improves the production efficiency of the axle housing and reduces the labor intensity of workers.

[0119] 2. The design of the wedge-shaped pressure block meets the requirements of compacting the drilling surfaces of bridge shells with different thicknesses. One device can process various types of bridge shells, greatly saving production costs. The design of the arc-shaped pressure plate improves the fit between the pressure plate and the outside of the bridge shell, increases the compaction force, and ensures processing stability.

[0120] 3. The use of fixed-axis planetary gear train and high-precision and high-positioning drill bits improves the processing accuracy and load-bearing capacity of the equipment, thereby improving the processing quality of the product and the service life of the equipment.

[0121] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A one-time processing equipment for automobile axle housing screw holes, characterized in that , including: bed, workbench, positioning and clamping mechanism, drilling mechanism and displacement mechanism; The positioning and pressing mechanism is provided on the workbench and is used to fix and press the axle housing on the workbench; The drilling mechanism is horizontally movably arranged on the bed, and is provided with a plurality of drill bits that are consistent with the arrangement positions of the screw holes on the drilling surface of the axle housing, for drilling the screw holes on the drilling surface of the axle housing; The displacement mechanism is used to drive the drilling mechanism to approach or move away from the axle housing drilling surface in the horizontal direction; The workbench is fixedly connected to the bed; The positioning and clamping mechanism includes a positioning assembly, which includes a positioning support fixedly arranged on the workbench. A drilling template is fixedly sleeved on the side of the positioning support close to the axle housing and perpendicular to the workbench for positioning the axle housing in the X-axis direction during installation. A plurality of positioning cones are fixedly provided on one side of the drilling template close to the axle housing, which are used for guiding and positioning in the Y-axis and Z-axis directions when the axle housing is installed; The layout position of the positioning cone column is consistent with the layout position of the bridge housing positioning hole; Support racks are provided at intervals on both sides of the positioning support to support the half-axles at both ends of the axle housing; The supporting frame is fixedly arranged on the workbench.

2. The one-time processing equipment for automobile axle housing screw holes according to claim 1 is characterized in that A plurality of drill sleeves are fixed on the drilling template, and the arrangement of the drill sleeves is consistent with the position of the screw holes on the drilling surface of the bridge housing.

3. The one-time processing equipment for automobile axle housing screw holes according to claim 1 is characterized in that The positioning and clamping mechanism also includes a clamping assembly, which includes wedge-shaped pressure blocks that can move along the Z-axis direction and are arranged in opposite directions, and are used to clamp the drilling surfaces of bridge shells of different thicknesses; One end of the wedge-shaped pressure block is fixedly connected to a telescopic mechanism, the telescopic end of the telescopic mechanism is fixedly connected to the wedge-shaped pressure block, and the body of the telescopic mechanism is fixedly arranged on the mounting plate; The other end of the wedge-shaped pressing block is arranged in a guide seat, and the guide seat is provided with a guide groove adapted to the shape of the wedge-shaped pressing block; The guide seat is fixedly arranged on the mounting plate and is used for guiding the wedge-shaped pressing block when it moves; The mounting plate is fixedly arranged on a side of the drilling template away from the bridge housing, and the drilling template is provided with an opening for installing the telescopic mechanism and the guide seat.

4. The one-time processing equipment for automobile axle housing screw holes according to claim 3 is characterized in that ,The clamping assembly also includes a pressure plate movable along the X-axis direction for clamping the exterior of the axle housing; The shape of the pressing surface of the pressure plate is consistent with the external shape of the axle housing; A first displacement transmission mechanism is provided on a side of the pressure plate away from the bridge housing. The first displacement transmission mechanism is fixedly provided on the workbench and is used for driving the pressure plate to move.

5. The one-time processing equipment for automobile axle housing screw holes according to claim 1 is characterized in that The drilling mechanism further includes a first drive assembly for driving the drill bit to rotate, the first drive assembly including a first drive motor, a reduction box and a gear box; The output shaft of the first drive motor is fixedly connected to the input shaft of the reduction gearbox, and the output shaft of the reduction gearbox is fixedly connected to the first gear shaft of the gearbox.

6. The one-time processing equipment for automobile axle housing screw holes according to claim 5 is characterized in that The first gear shaft is coaxial and the fixed sleeve is provided with a center wheel, the center wheel is circumferentially meshed with a plurality of planetary wheels, and the plurality of planetary wheels can be overlapped along the axial direction; The planetary gears are coaxial and the fixed sleeve is provided with a second gear shaft; One end of the second gear shaft is fixedly connected to the drill bit; The first gear shaft and the second gear shaft are both rotatably disposed on the gear box body.

7. The one-time processing equipment for automobile axle housing screw holes according to claim 6 is characterized in that The thickness of the center wheel is more than twice the thickness of the planet wheels, and is used for overlapping arrangement of the planet wheels along the axial direction.

8. The one-time processing equipment for automobile axle housing screw holes according to claim 1 is characterized in that The displacement mechanism includes a second driving assembly and a second displacement transmission mechanism; the second driving assembly is used to drive the second displacement transmission mechanism to rotate, and the second displacement transmission mechanism is used to drive the drilling mechanism to move along the X-axis direction; The second driving component includes a second driving motor and a reducer.

9. The one-time processing equipment for automobile axle housing screw holes according to claim 5 is characterized in that , the displacement mechanism also includes a displacement guide mechanism for guiding the drilling mechanism when it moves along the X-axis direction; The displacement guide mechanism includes a guide rail fixed and arranged parallel to the bed and a sliding seat that can slide along the guide rail; The sliding seat is fixedly connected to the bottom of the gear box.

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