CN210208944U - Positioning fixture of automatic tapping machine for air vent of automobile rear axle housing - Google Patents
Positioning fixture of automatic tapping machine for air vent of automobile rear axle housing Download PDFInfo
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- CN210208944U CN210208944U CN201920967658.8U CN201920967658U CN210208944U CN 210208944 U CN210208944 U CN 210208944U CN 201920967658 U CN201920967658 U CN 201920967658U CN 210208944 U CN210208944 U CN 210208944U
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Abstract
The utility model relates to a positioning clamp of an automatic tapping machine for air vents of an automobile rear axle housing, which comprises a clamp quick positioning part and a clamp clamping part which are arranged in parallel, and is characterized in that the clamp quick positioning part comprises a positioning pin, a square contact block, a fixed block, a return spring, a scrap blowing copper pipe assembly and a mounting plate; the clamp clamping part comprises a cylinder seat, a sliding guide pillar, a cylinder connecting block, a sliding guide sleeve and a clamping plate; the clamping end of the clamping plate, the positioning pin and the square contact block form a positioning and clamping working position; the square contact block is fixed in the middle hole of the fixed block, the positioning pin is connected with the middle hole of the square contact block in a sliding manner, and the bottom of the positioning pin is clamped with a return spring; a scrap blowing port of the scrap blowing copper pipe assembly is clamped in a side hole of the square contact block; the cylinder is fixed on the cylinder seat and is connected with the clamping plate through a cylinder connecting block; the air cylinder and the scrap blowing copper pipe assembly are respectively connected with the air valve through air pipes. The clamp realizes quick switching and quick positioning and clamping.
Description
Technical Field
The utility model relates to a machining equipment field relates to a car rear-axle housing processing location clamping jig, in particular to automatic tapping machine positioning jig of car rear-axle housing air vent.
Background
The automobile drive axle housing is used for supporting and protecting a main speed reducer, a differential mechanism, a half shaft and the like. Meanwhile, the lubricating oil storage cavity is also a cavity for storing lubricating oil of a transmission gear of the main speed reducer and the differential mechanism. At present, most axle housings are manufactured by splicing and butt welding an upper axle housing and a lower axle housing. The early-stage stamping production steps of the upper axle housing and the lower axle housing are almost completely consistent, the upper axle housing and the lower axle housing are distinguished by the last processing procedure, the upper axle housing is processed with a Z1/8 thread vent hole, and the lower axle housing is processed with a phi 22.5 oil drain hole. After the whole axle housing is assembled, lubricating oil needs to be filled into the whole axle housing cavity, and the air vent bolt is additionally arranged on the upper axle housing thread air vent to form an air exhaust channel of the axle housing sealing cavity. Go up axle housing screw thread air vent screw thread quality, direct influence automobile rear axle assembly quality and air vent bolted connection fastness. Therefore, the thread quality of the continuously machined upper axle housing Z1/8 threaded vent hole is of particular importance.
A rear axle housing with the thickness of 5-6mm plates is processed by 2 working procedures in a traditional processing mode of a thread vent hole, wherein a phi 8.9 thread bottom hole is punched on a 63T punch press by a die, and then tapping is carried out on a radial drilling machine to process Z1/8 threads. Because of the axle housing is adopted axle housing appearance profile structure to fix a position before tapping on radial drill, positional stability can not be guaranteed completely, the incessant quality problem that appears the mashed tooth of individual screw hole in the course of working. In addition, the threaded vent hole is machined on the radial drilling machine, the thread depth is manually controlled, the thread depth is difficult to guarantee to be consistent, and the quality problem that the thread depth is too deep frequently occurs.
The utility model discloses just based on the optimizability consideration that existing equipment exists, design an automobile rear-axle housing air vent automatic tapping machine universal clamping anchor clamps.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an automobile rear axle housing air vent automatic tapping machine positioning fixture can realize that axle housing air vent screw tapping process is processed on automatic tapping machine, replaces the traditional tapping mode of manual tapping on the rocking arm bores, improves axle housing air vent screw thread quality, reduces operator intensity of labour.
In order to realize the utility model discloses a purpose, the utility model discloses a technical scheme do:
a positioning clamp of an automatic tapping machine for air vents of an automobile rear axle housing comprises a clamp quick positioning part and a clamp clamping part which are arranged in parallel, wherein the clamp quick positioning part comprises a positioning pin, a square contact block, a fixing block, a return spring, a scrap blowing copper pipe assembly and a mounting plate; the clamp clamping part comprises a cylinder seat, a sliding guide pillar, a cylinder connecting block, a sliding guide sleeve and a clamping plate; the clamping end of the clamping plate, the positioning pin and the square contact block form a positioning and clamping working position;
the square contact block is fixed in the middle hole of the fixed block, the positioning pin is in sliding connection with the middle hole of the square contact block, and the bottom of the positioning pin is clamped with a return spring; a scrap blowing port of the scrap blowing copper pipe assembly is clamped in a side hole of the square contact block;
the cylinder is fixed on the cylinder seat and is connected with the clamping plate through a cylinder connecting block;
the air cylinder and the scrap blowing copper pipe assembly are respectively connected with the air valve through air pipes, and when the air cylinder is loosened to move upwards, air input by the air valve blows scrap iron in the middle hole of the square contact block through a scrap blowing port of the scrap blowing copper pipe assembly.
Furthermore, the square contact block is fixed in a middle hole of the fixed block in an interference fit manner, and a abdicating notch is formed in the bottom of the fixed block; the positioning pin penetrates through the abdicating notch to be in sliding connection with the middle hole of the square contact block.
Furthermore, the scrap blowing port is clamped in the side hole of the square contact block, and the scrap blowing copper pipe assembly and the fixed block are fixed on the mounting plate through bolts respectively or together.
Further, the cylinder block is fixedly connected with the mounting plate through a bolt, and the sliding guide pillar is fixed in a guide pillar hole of the cylinder block through interference fit; the sliding guide sleeve is fixed in the guide sleeve hole of the clamping plate in an interference fit manner; the cylinder is fixed on the cylinder seat through a bolt, and the cylinder connecting block is fixed on the bottom surface of the clamping plate through a bolt.
Furthermore, the front end of the piston rod of the air cylinder is screwed into the middle threaded hole of the air cylinder connecting block through threads and is fastened through a nut.
Furthermore, the cylinder is connected with a manual air valve communicated with compressed air through an air pipe, a scrap blowing port of the scrap blowing copper pipe assembly is connected with an exhaust port of the manual air valve through the air pipe, the manual air valve controls a piston rod of the cylinder to move back and forth, and the cylinder drives the clamping plate to move up and down through a cylinder connecting block.
The utility model has the advantages that: this anchor clamps realize that the rear-axle housing air vent screw thread tapping process of different specification models all can be processed on automatic tapping machine to can realize fast switch-over, quick location presss from both sides tightly, replace the traditional tapping mode of manual tapping on the rocking arm bores, improve axle housing air vent screw thread quality, loosen the cylinder upward movement and blow the bits of blowing of bits copper pipe assembly and move and set up to synchronous, further improved production efficiency.
Drawings
FIG. 1 is a schematic diagram of an isometric structure of a general positioning and clamping fixture of an automatic air vent tapping machine for an automobile rear axle housing according to the present invention;
fig. 2 is an isometric view of an embodiment 1 of the present invention in an orientation state;
fig. 3 is an isometric view of embodiment 1 of the present invention in a clamped state;
fig. 4 is a schematic structural diagram of the product after the vent hole thread tapping process.
In the drawing, a positioning pin, a square contact block, a fixing block, a return spring, a scrap blowing copper pipe assembly, a mounting plate, a cylinder seat, a sliding guide pillar, a cylinder connecting block, a sliding guide sleeve, a clamping plate, an automatic tapping machine and an axle housing.
Detailed Description
The present invention can be embodied by technical solutions, and the following embodiments can be further described and illustrated, however, the scope of the present invention is not limited to the following embodiments.
Example 1: take upper axle housing screw thread air vent in processing Jiangling NKR motorcycle type rear-axle housing assembly as an example:
the utility model provides an automobile rear-axle housing air vent automatic tapping machine positioning fixture structure as shown in figure 1, figure 2, figure 3:
the clamp comprises a clamp quick positioning part and a clamp clamping part: the jig quick-positioning portion includes: the device comprises a positioning pin 1, a square contact block 2, a fixed block 3, a return spring 4, a scrap blowing copper pipe assembly 5 and a mounting plate 6; the clamp clamping portion includes: the device comprises a cylinder seat 7, a sliding guide post 8, a cylinder 9, a cylinder connecting block 10, a sliding guide sleeve 11 and a clamping plate 12.
The square contact block 2 is fixed in a middle hole of the fixed block 3 in an interference fit manner; the positioning pin 1 penetrates through a middle hole of the square contact block 2 from a notch at the bottom of the fixing block 3, a return spring 4 is clamped at the bottom of the positioning pin 1, and the positioning pin 1 can slide up and down;
blow 5 copper pipe ports of bits copper pipe assembly and block in 2 side openings of square contact block, blow bits copper pipe assembly 5 and pass through the bolt and fix on mounting panel 6 with fixed block 3.
The cylinder seat 7 is fixed with the mounting plate 6 through bolts; the sliding guide post 8 is fixed in a guide post hole of the cylinder seat 7 through interference fit; the cylinder 9 is fixed on the cylinder seat 7 through a bolt;
the sliding guide sleeve 11 is fixed in a guide sleeve hole of the clamping plate 12 through interference fit; the cylinder connecting block 10 is fixed on the bottom surface of the clamping plate 12 through a bolt; the front end of the piston rod of the air cylinder 9 is screwed into the middle threaded hole of the air cylinder connecting block 10 through threads and is tightened through a nut.
The air cylinder 9 is connected with a manual air valve communicated with compressed air through an air pipe, the scrap blowing copper pipe assembly 5 is connected with an exhaust port of the manual air valve through the air pipe, and when the air cylinder 9 is loosened, air at the exhaust port of the manual air valve blows out scrap iron in a middle hole of the square contact block 2 through the scrap blowing copper pipe assembly 5; the piston rod of the air cylinder 9 can move back and forth by controlling the opening and closing of the manual air valve, and the clamping plate 12 is driven to move up and down, so that the clamping and the loosening of the clamp are realized, and the quick clamping and the loosening of the axle housing are realized.
The working principle of the utility model is as follows: go up the axle housing in the Jiangling NKR motorcycle type rear-axle housing assembly and make through stamping process by panel, as shown in FIG. 4, after blanking, shaping, cut long side cut, towards air vent screw bottom hole process, just available rear-axle housing air vent automatic tapping machine general location clamping jig carries out the axle housing location and presss from both sides tightly, carries out screw thread tapping processing to going up the axle housing air vent on automatic tapping machine, and concrete step is as follows:
step 1: the universal positioning and clamping fixture for the automatic tapping machine of the automobile rear axle housing is arranged on a workbench of the automatic tapping machine, and the position of the fixture is adjusted to ensure that a tap of the automatic tapping machine is concentric with the positioning pin 1;
step 2: connecting a compressed air source air pipe to an air inlet of a manual air valve;
and 3, step 3: controlling a manual air valve, operating the clamping plate 12 to be in a loosening state, taking the axle housing 14 to be processed, clamping a threaded bottom hole punched on the axle housing 14 on the positioning pin 1, controlling the manual air valve, operating the clamping plate 12 to be in a clamping state, and clamping the axle housing 14;
and 4, step 4: starting an automatic tapping machine to tap the threads of the axle housing vent hole;
and 5, step 5: after the processing is finished, after the main shaft of the automatic tapping machine returns, the manual air valve is controlled, the clamping plate 12 is operated to loosen, the scrap iron in the middle hole of the square contact block 2 is blown out by air discharged from the air outlet of the manual air valve through the scrap-blowing copper pipe assembly 5, and the processed axle housing 14 is taken down;
and 6, step 6: and (5) repeating the operations from the step (3) to the step (5) to process and manufacture the lower workpiece.
Adopt the utility model discloses a general location clamp of car rear-axle housing air vent automatic tapping machine presss from both sides tight anchor clamps, realizes that the rear-axle housing air vent screw tapping manufacturing procedure of different specification models all can go on automatic tapping machine to can realize fast switch-over, quick location clamp tightly. The rear axle housing is fast and stable in positioning, and the quality of the axle housing vent hole threads is stable and reliable. The traditional tapping processing mode of manual tapping on the rocker drill is replaced, the quality of the threads of the axle housing vent hole is improved, and the labor intensity of an operator is reduced.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A positioning clamp of an automatic tapping machine for air vents of an automobile rear axle housing comprises a clamp quick positioning part and a clamp clamping part which are arranged in parallel, and is characterized in that the clamp quick positioning part comprises a positioning pin (1), a square contact block (2), a fixing block (3), a return spring (4), a scrap blowing copper pipe assembly (5) and a mounting plate (6); the clamp clamping part comprises a cylinder seat (7), a sliding guide pillar (8), a cylinder (9), a cylinder connecting block (10), a sliding guide sleeve (11) and a clamping plate (12); the clamping end of the clamping plate (12), the positioning pin (1) and the square contact block (2) form a positioning and clamping working position;
the square contact block (2) is fixed in a middle hole of the fixed block (3), the positioning pin (1) is in sliding connection with the middle hole of the square contact block (2), and a return spring (4) is clamped at the bottom of the positioning pin (1); a scrap blowing port of the scrap blowing copper pipe assembly (5) is clamped in a side hole of the square contact block (2);
the air cylinder (9) is fixed on the air cylinder seat (7), and the air cylinder (9) is connected with the clamping plate (12) through an air cylinder connecting block (10);
the air cylinder (9) and the scrap blowing copper pipe assembly (5) are respectively connected with the air valve through air pipes.
2. The positioning fixture for the automatic tapping machine for the vent holes of the automotive rear axle housing as claimed in claim 1, wherein the square contact block (2) is fixed in a middle hole of the fixing block (3) through interference fit, and a abdicating notch is formed in the bottom of the fixing block (3); the positioning pin (1) penetrates through the abdicating notch to be in sliding connection with the middle hole of the square contact block (2).
3. The positioning fixture for the automatic tapping machine for the air vent of the automotive rear axle housing as claimed in claim 1, wherein the scrap blowing port is clamped in a side hole of the square contact block (2), and the scrap blowing copper pipe assembly (5) and the fixed block (3) are fixed on the mounting plate (6) respectively or jointly through bolts.
4. The positioning fixture for the automatic tapping machine for the vent hole of the automotive rear axle housing as claimed in claim 1, wherein the cylinder block (7) is fixedly connected with the mounting plate (6) through a bolt, and the sliding guide post (8) is fixed in a guide post hole of the cylinder block (7) through interference fit; the sliding guide sleeve (11) is fixed in a guide sleeve hole of the clamping plate (12) through interference fit; the air cylinder (9) is fixed on the air cylinder seat (7) through a bolt, and the air cylinder connecting block (10) is fixed on the bottom surface of the clamping plate (12) through a bolt.
5. The positioning fixture for the automatic tapping machine for the ventilation hole of the automotive rear axle housing as claimed in claim 1 or 4, wherein the front end of the piston rod of the air cylinder (9) is screwed into the middle threaded hole of the air cylinder connecting block (10) and is fastened through a nut.
6. The positioning fixture for the automatic tapping machine for the air vent of the rear axle housing of the automobile according to claim 1, wherein the cylinder (9) is connected with a manual air valve communicated with compressed air through an air pipe, a scrap blowing port of the scrap blowing copper pipe assembly (5) is connected with an exhaust port of the manual air valve through an air pipe, the manual air valve controls a piston rod of the cylinder (9) to move back and forth, and the cylinder (9) drives the clamping plate (12) to move up and down through a cylinder connecting block (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920967658.8U CN210208944U (en) | 2019-06-26 | 2019-06-26 | Positioning fixture of automatic tapping machine for air vent of automobile rear axle housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920967658.8U CN210208944U (en) | 2019-06-26 | 2019-06-26 | Positioning fixture of automatic tapping machine for air vent of automobile rear axle housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210208944U true CN210208944U (en) | 2020-03-31 |
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ID=69933864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920967658.8U Active CN210208944U (en) | 2019-06-26 | 2019-06-26 | Positioning fixture of automatic tapping machine for air vent of automobile rear axle housing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210208944U (en) |
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2019
- 2019-06-26 CN CN201920967658.8U patent/CN210208944U/en active Active
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