CN107081622B - Quick positioning and clamping device for automobile rear axle shell drill and tapping vent hole - Google Patents

Quick positioning and clamping device for automobile rear axle shell drill and tapping vent hole Download PDF

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Publication number
CN107081622B
CN107081622B CN201710467541.9A CN201710467541A CN107081622B CN 107081622 B CN107081622 B CN 107081622B CN 201710467541 A CN201710467541 A CN 201710467541A CN 107081622 B CN107081622 B CN 107081622B
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China
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plate
clamping
positioning
axle housing
mounting plate
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CN107081622A (en
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张党华
邱庚龙
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Jiangxi Jiangling Chassis Co Ltd
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Jiangxi Jiangling Chassis Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06Work-clamping means
    • B23Q3/08Work-clamping means other than mechanically-actuated
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

The invention relates to a quick positioning and clamping device for a drilling and tapping vent hole of an automobile rear axle housing, which comprises an L-shaped right-angle mounting plate, a clamping mechanism arranged on one side of an outer plate surface of an L-shaped right-angle mounting plate, and a driving device arranged on the surface of the L-shaped right-angle mounting plate and used for driving the clamping mechanism to move forwards and backwards to clamp. The invention has the advantages of quick and stable positioning, good guarantee of the consistency of the position and the size of the threaded vent hole of the axle housing, and improvement of the quality of the axle housing product; the fixture adopts the clamping mechanism to rapidly clamp the bridge body for positioning, replaces the traditional positioning and clamping mode that the positioning and clamping fixture manually shakes the rotary handle to clamp the axle housing, liberates the manual clamping operation step of operators, reduces labor intensity, saves production time and improves production efficiency.

Description

Quick positioning and clamping device for automobile rear axle shell drill and tapping vent hole
Technical Field
The invention relates to automobile rear axle housing processing equipment, in particular to a rapid positioning and clamping device for drilling and tapping a threaded vent hole of an automobile rear axle housing.
Background
The automobile driving axle housing is used for supporting and protecting a main speed reducer, a differential mechanism, a half axle and the like. Meanwhile, the device is also a cavity for storing lubricating oil of the main speed reducer and the transmission gear of the differential. At present, most axle housings are manufactured by splicing and butt welding an upper axle housing and a lower axle housing. The front-stage stamping production steps of the upper axle housing and the lower axle housing are almost identical, the last processing procedure separates the upper axle housing from the lower axle housing, the upper axle housing drills and taps the threaded vent holes, and the lower axle housing punches the oil plug holes. After the whole axle housing is assembled, the interior of the axle housing cavity is rectified and filled with lubricating oil, and an air vent bolt is additionally arranged on an upper axle housing threaded air vent, so that an exhaust channel of the axle housing sealing cavity is formed. After the whole axle housing is welded, the tightness of the cavity of the axle housing is detected by using full-automatic air tightness detection equipment, and the requirement on the position and the size consistency of the continuously processed threaded vent holes of the upper axle housing is particularly important.
The machining process of the upper bridge shell drill and the tapping vent hole is finished on a radial drilling machine, and the traditional positioning and clamping fixture is quite crude in structure. Before drilling and tapping the vent holes, the lute Kong Yuanhu in the middle of the axle housing is clamped on a fixture positioning block, the semicircular pipe wall at one end of the axle housing is placed on a supporting arm to finish positioning, and then the axle housing is clamped by manually shaking a rotary handle. After drilling and tapping the vent holes, the rotary handle is manually and reversely rocked to loosen the clamping bridge body, and the bridge shell is taken down to finish machining. The traditional positioning and clamping fixture is used for drilling and tapping the threaded vent hole of the upper axle housing, the positioning stability of the axle housing is poor, the position and size consistency of the threaded vent hole of the upper axle housing are difficult to ensure, the operation of the subsequent tightness testing procedure is affected, the rotating handle is frequently and manually rocked, and the labor intensity of operators is high.
Chinese patent publication No. CN205497050U discloses a rear axle cladding body drilling jig, which comprises a base, a translational positioning device, a rotational positioning device and a vertical movement positioning device; the bottom of the base is provided with a machine tool connecting structure, and an oil cylinder accommodating cavity is arranged in the base; the translation positioning device comprises an oil cylinder, a pull rod, a taper sleeve with a taper surface, at least three expansion blocks and at least three expansion block sliding grooves arranged on a base; each expansion block chute takes the central line of the conical surface as a central circumferential array; the lower part of the expansion block is positioned in the expansion block chute; the oil cylinder is vertically arranged in the oil cylinder accommodating cavity; the pull rod is vertically arranged and connected with an output shaft of the oil cylinder; the taper sleeve is connected with the pull rod, and the taper surface is contacted with the top of the expansion block; the oil cylinder drives the pull rod to move up and down, the pull rod drives the taper sleeve to move up and down, and the taper surface drives the expansion block to move along the expansion block sliding chute, so that the expansion block can expand the reference hole of the rear axle package shell. The structure of the patent is complex, and the rear axle cladding body can only be clamped when being drilled, so that the tapping ventilation hole treatment of the rear axle cladding body is inconvenient;
the invention designs a rapid positioning and clamping device for a drill and tapping vent hole of a rear axle housing of an automobile based on the optimization consideration of the prior art, replaces the traditional positioning and clamping mode of manually shaking a rotary handle by a positioning and clamping clamp to clamp the axle housing, improves the positioning stability of the axle housing, ensures the position and size consistency of the threaded vent hole of the axle housing, improves the production efficiency of products, and reduces the labor intensity of operators, thus being very necessary.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a rapid positioning and clamping device for a drill and tapping vent hole of a rear axle shell of an automobile.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a quick positioning and clamping device of car rear axle shell drill, tapping screw vent, includes L shape right angle mounting panel, sets up the clamping mechanism of L shape right angle mounting panel riser planking one side and sets up the drive on the dull and stereotyped face of L shape right angle mounting panel clamping mechanism back-and-forth movement realizes the drive arrangement who presss from both sides tightly, still be equipped with lute hole locating piece on the outer face of L shape right angle mounting panel riser, one side of the outer face of L shape right angle mounting panel riser is equipped with the bridge arm support frame, and lute hole locating piece and bridge arm support frame support the rear axle shell jointly.
The rapid positioning and clamping device for the automobile rear axle shell drill and tapping vent holes comprises a bridge body clamping plate and a plurality of sets of sliding guide sleeve guide post structures, wherein the sliding guide sleeves are arranged in guide sleeve holes of the bridge body clamping plate in an interference fit manner; the sliding guide post is arranged in a guide post hole of the L-shaped right-angle mounting plate vertical plate through interference fit; the bridge body clamping plate passes through the lute hole positioning block through the sliding guide sleeve and is hung on the sliding guide post.
According to the quick positioning and clamping device for the automobile rear axle shell drill and tapping the threaded vent holes, the lute hole positioning block is arranged between the bridge body clamping plate and the outer side plate surface of the L-shaped right-angle mounting plate vertical plate, and the sliding guide pillar penetrates through the lute hole positioning block and is fixedly connected with the L-shaped right-angle mounting plate vertical plate through the bolt.
The quick positioning and clamping device for the automobile rear axle shell drill and tapping vent holes is characterized in that the driving device is an air cylinder, and the air cylinder is arranged on the flat plate surface of the L-shaped right-angle mounting plate through an air cylinder mounting seat.
The quick positioning and clamping device for the automobile rear axle shell drill and the tapping vent hole is characterized in that an air valve is further arranged on the vertical plate of the L-shaped right-angle mounting plate and is fixed on the upper portion of one side of the vertical plate of the L-shaped right-angle mounting plate through the air valve mounting plate, and on one hand, the air valve is connected with a compressed air source through an air pipe and on the other hand, is communicated with an air cylinder through the air pipe.
The quick positioning and clamping device for the automobile rear axle shell drill and the tapping vent hole is characterized in that a connecting rod is arranged between the air cylinder and the axle body clamping plate, one end of the connecting rod is fixedly connected with a piston rod of the air cylinder, and the other end of the connecting rod is fixedly connected with the axle body clamping plate through a bolt.
According to the quick positioning and clamping device for the automobile rear axle shell drill and the tapping vent hole, the long waist-shaped hole is formed in one side of the outer plate surface of the vertical plate of the L-shaped right-angle mounting plate, and the bridge arm support frame is fixed in the long waist-shaped hole through the bolt component.
The quick positioning and clamping device for the automobile rear axle shell drill and the tapping vent hole is characterized in that the scale mounting groove is formed in the upper surface of the L-shaped right-angle mounting plate vertical plate, and the scale is riveted in the scale mounting groove through rivets.
According to the rapid positioning and clamping device for the automobile rear axle housing drill and tapping vent holes, the outline structural dimension of the lute hole positioning block is completely consistent with the shape and dimension of the lute hole and the notch in the middle of the axle housing, and the lute hole positioning block rotates by a certain angle.
The beneficial effects of the invention are as follows: the invention has the advantages of quick and stable positioning, good guarantee of the consistency of the position and the size of the threaded vent hole of the axle housing, and improvement of the quality of the axle housing product; the fixture adopts the clamping mechanism to rapidly clamp the bridge body for positioning, replaces the traditional positioning and clamping mode that the positioning and clamping fixture manually shakes the rotary handle to clamp the axle housing, liberates the manual clamping operation step of operators, reduces labor intensity, saves production time and improves production efficiency.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is a schematic view of the structure of the present invention in operation;
fig. 5 is a schematic view of the structure of the workpiece after the process of drilling and tapping the vent holes.
Description of the embodiments
As shown in fig. 1 to 5, the quick positioning and clamping device for the drill and tapping vent holes of the automobile rear axle shell comprises an L-shaped right-angle mounting plate 1, a clamping mechanism arranged on one side of the outer plate surface of the vertical plate of the L-shaped right-angle mounting plate 1 and a driving device arranged on the flat plate surface of the L-shaped right-angle mounting plate 1 and used for driving the clamping mechanism to move back and forth to clamp, a lute hole positioning block 6 is further arranged on the outer plate surface of the vertical plate of the L-shaped right-angle mounting plate 1, a bridge arm supporting frame 2 is arranged on one side of the outer plate surface of the vertical plate of the L-shaped right-angle mounting plate 1, and the lute hole positioning block 6 and the bridge arm supporting frame 2 support the rear axle shell together.
The clamping mechanism comprises a bridge clamping plate 5 and a plurality of sets of sliding guide sleeve guide pillar structures, wherein the sliding guide sleeve 3 is arranged in a guide sleeve hole of the bridge clamping plate 5 through interference fit; the sliding guide post 4 is arranged in a guide post hole of the vertical plate of the L-shaped right-angle mounting plate 1 through interference fit; the bridge body clamping plate 5 is hung on the sliding guide post 4 through the lute hole positioning block 6 by the sliding guide sleeve 3.
The lute hole positioning block 6 is arranged between the bridge clamping plate 5 and the outer side plate surface of the vertical plate of the L-shaped right-angle mounting plate 1, and the sliding guide post 4 penetrates through the lute hole positioning block 6 and is fixedly connected with the vertical plate of the L-shaped right-angle mounting plate 1 through bolts.
The driving device is an air cylinder 10, and the air cylinder 10 is arranged on the flat plate surface of the L-shaped right-angle mounting plate 1 through an air cylinder mounting seat 9. The vertical plate of the L-shaped right-angle mounting plate 1 is also provided with an air valve 7, the air valve 7 is fixed on one side upper part of the vertical plate of the L-shaped right-angle mounting plate 1 through an air valve mounting plate 8, on one hand, the air valve 7 is connected with a compressed air source through an air pipe, and on the other hand, the air valve 7 is communicated with an air cylinder 10 through the air pipe.
A connecting rod 11 is arranged between the air cylinder 10 and the bridge clamping plate 5, one end of the connecting rod 11 is fixedly connected with a piston rod of the air cylinder 10, the other end of the connecting rod is fixedly connected with the bridge clamping plate 5 through a bolt, one side of the outer plate surface of the vertical plate of the L-shaped right-angle mounting plate 1 is provided with a long kidney-shaped hole, the bridge arm support frame (2) is fixed in the long kidney-shaped hole through a bolt assembly, the upper surface of the vertical plate of the L-shaped right-angle mounting plate 1 is provided with a scale mounting groove, and the scale 12 is riveted in the scale mounting groove through a rivet.
The shape and the structure dimensions of the lute hole positioning block 6 are completely consistent with those of the lute hole and the notch in the middle of the axle housing, and the lute hole positioning block is rotated for a certain angle.
The working principle of the invention is briefly described as follows: the upper axle housing in the axle housing assembly is manufactured by punching a plate, and after blanking, forming and trimming, the rear axle housing drill and tapping screw vent holes can be used for quickly positioning and clamping the axle housing to drill and tap the upper axle housing screw vent holes by using a quick positioning and clamping fixture, and the steps are as follows:
step 1: the rapid positioning and clamping device for drilling and tapping the threaded vent holes of the automobile rear axle housing is arranged on the tooling table top of the radial drilling machine;
step 2: connecting a compressed air source air pipe to an air inlet of the air valve 7;
step 3: the control air valve 7 is used for controlling the bridge body clamping plate 5 to be in a loosening state, clamping the bridge shell to be processed on the lute hole positioning block 6, controlling the air valve 7, controlling the bridge body clamping plate 5 to be in a clamping state, clamping the bridge body, and adjusting the upper and lower heights of the bridge arm support frames 2 to enable the bridge arm support frames 2 to support one end bridge arm of the bridge shell;
step 4: adjusting the position of a rocker arm drill bit of the rocker arm drilling machine according to the scale size of the scale 12 by referring to the position size of the axle housing threaded vent hole in the process file drawing, performing a drilling procedure, detecting the position size compliance of the axle housing threaded vent hole, fixing the rocker arm position of the rocker arm drilling machine after the axle housing threaded vent hole is qualified, and performing the drilling procedure;
step 5: taking down the drilling bit, and mounting a special tap for tapping;
step 6: the control air valve 7 is used for controlling the bridge body clamping plate 5 to be in a loosening state and taking down the machined bridge shell;
step 7: and (3) repeating the operations from the step 3 to the step 6, and manufacturing the lower workpiece.
The automobile rear axle housing drill and tapping thread vent hole rapid positioning clamping fixture is adopted to clamp and process the rear axle housing thread vent hole, so that the positioning is rapid and stable, the position and size consistency of the axle housing thread vent hole can be well ensured, and the quality of an axle housing product is improved; the pneumatic clamping device is used for rapidly clamping the bridge body for positioning, a positioning and clamping mode that the traditional positioning and clamping clamp manually shakes the rotary handle to clamp the axle housing is replaced, an operator is liberated from manually clamping and operating steps, labor intensity is reduced, production time is saved, and production efficiency is improved.
The foregoing has shown and described the basic principles, principal 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 embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (5)

1. Quick positioning and clamping device for automobile rear axle shell drill and tapping vent hole is characterized by comprising an L-shaped right angle
The device comprises a mounting plate (1), a clamping mechanism arranged on one side of the outer plate surface of a vertical plate of the L-shaped right-angle mounting plate (1) and a driving device arranged on the flat plate surface of the L-shaped right-angle mounting plate (1) and used for driving the clamping mechanism to move forwards and backwards to realize clamping, wherein a lute hole positioning block (6) is further arranged on the outer plate surface of the vertical plate of the L-shaped right-angle mounting plate (1), a bridge arm supporting frame (2) is arranged on one side of the outer plate surface of the vertical plate of the L-shaped right-angle mounting plate (1), and the lute hole positioning block (6) and the bridge arm supporting frame (2) jointly support a rear axle housing;
the clamping mechanism comprises a bridge clamping plate (5) and a plurality of sets of sliding guide sleeve guide pillar structures, wherein the sliding guide sleeve (3) is arranged in a guide sleeve hole of the bridge clamping plate (5) in an interference fit manner; the sliding guide post (4) is arranged in a guide post hole of the vertical plate of the L-shaped right-angle mounting plate (1) in an interference fit manner; the bridge body clamping plate (5) passes through the lute hole positioning block (6) through the sliding guide sleeve (3) to be hung on the sliding guide post (4);
the lute hole positioning block (6) is arranged between the bridge clamping plate (5) and the outer side plate surface of the vertical plate of the L-shaped right-angle mounting plate (1), and the sliding guide pillar (4) penetrates through the lute hole positioning block (6) and is fixedly connected with the vertical plate of the L-shaped right-angle mounting plate (1) through bolts;
the driving device is an air cylinder (10), and the air cylinder (10) is arranged on the flat plate surface of the L-shaped right-angle mounting plate (1) through an air cylinder mounting seat (9);
the external structural dimension of the lute hole positioning block (6) is completely consistent with the shape and dimension of the lute hole and the notch in the middle of the axle housing, and the lute hole positioning block rotates for a certain angle.
2. The rapid positioning and clamping device for a rear axle housing drill and tapping a threaded vent hole of an automobile according to claim 1, wherein the rapid positioning and clamping device is characterized in that: the vertical plate of the L-shaped right-angle mounting plate (1) is also provided with an air valve (7), the air valve (7) is fixed on one side upper part of the vertical plate of the L-shaped right-angle mounting plate (1) through an air valve mounting plate (8), on one hand, the air valve (7) is connected with a compressed air source through an air pipe, and on the other hand, the air valve is communicated with an air cylinder (10) through the air pipe.
3. The rapid positioning and clamping device for a rear axle housing drill and tapping a threaded vent hole of an automobile according to claim 1, wherein the rapid positioning and clamping device is characterized in that: a connecting rod (11) is arranged between the air cylinder (10) and the bridge body clamping plate (5), one end of the connecting rod (11) is fixedly connected with a piston rod of the air cylinder (10), and the other end of the connecting rod is fixedly connected with the bridge body clamping plate (5) through a bolt.
4. The rapid positioning and clamping device for a rear axle housing drill and tapping a threaded vent hole of an automobile according to claim 1, wherein the rapid positioning and clamping device is characterized in that: one side of the outer plate surface of the vertical plate of the L-shaped right-angle mounting plate (1) is provided with a long waist-shaped hole, and the bridge arm support frame (2) is fixed in the long waist-shaped hole through a bolt component.
5. The rapid positioning and clamping device for a rear axle housing drill and tapping a threaded vent hole of an automobile according to claim 1, wherein the rapid positioning and clamping device is characterized in that: the upper surface of L shape right angle mounting panel (1) riser is equipped with the scale mounting groove, and scale (12) pass through the rivet riveting and are in the scale mounting groove.
CN201710467541.9A 2017-06-20 2017-06-20 Quick positioning and clamping device for automobile rear axle shell drill and tapping vent hole Active CN107081622B (en)

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CN201710467541.9A CN107081622B (en) 2017-06-20 2017-06-20 Quick positioning and clamping device for automobile rear axle shell drill and tapping vent hole

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CN201710467541.9A CN107081622B (en) 2017-06-20 2017-06-20 Quick positioning and clamping device for automobile rear axle shell drill and tapping vent hole

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CN107081622B true CN107081622B (en) 2023-06-30

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Publication number Priority date Publication date Assignee Title
CN110170711A (en) * 2019-06-26 2019-08-27 江西江铃底盘股份有限公司 A kind of vehicle rear-axle housing venthole automatic tapping machine positioning fixture and its application method

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