CN117548965A - Axle housing self-centering and surface-fixing tool for different large flange apertures - Google Patents
Axle housing self-centering and surface-fixing tool for different large flange apertures Download PDFInfo
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- CN117548965A CN117548965A CN202311844065.XA CN202311844065A CN117548965A CN 117548965 A CN117548965 A CN 117548965A CN 202311844065 A CN202311844065 A CN 202311844065A CN 117548965 A CN117548965 A CN 117548965A
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- 230000008569 process Effects 0.000 abstract description 11
- 238000003754 machining Methods 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 15
- 230000005484 gravity Effects 0.000 description 14
- 238000013461 design Methods 0.000 description 12
- 238000003466 welding Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
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Abstract
The invention belongs to the technical field of axle housing machining, and particularly relates to an axle housing self-centering and surface-fixing tool for different large flange apertures. The tool comprises a bottom plate, three positioning seats are arranged at the top of the bottom plate along the circumferential direction at intervals, a fixed cylinder is fixedly connected to the top of each positioning seat, a spring is arranged in the fixed cylinder, a moving sleeve is sleeved at the upper end of the fixed cylinder, a positioning block is rotatably arranged at the top of the moving sleeve, a moving block is movably connected to the top of the positioning block, a stud is arranged at the top of the positioning block, the stud is fixedly connected with the moving block, the stud drives the moving block to move along the radial direction of a circle where the three positioning seats are located, a measuring plate is arranged on the positioning block, and the moving distance of the moving block corresponds to scales on the measuring plate. The fixture solves the problems that the center positioning accuracy of the traditional positioning fixture in the process of using the positioning disc to position the large flange hole is poor, the two positioning columns and the spring form to support the positioning disc cause uneven large flange surface of the axle housing, and the positioning fixture needs to be frequently replaced according to the specification of the axle housing.
Description
Technical Field
The invention belongs to the technical field of axle housing machining, and particularly relates to an axle housing self-centering and surface-fixing tool for different large flange apertures.
Background
All processing methods in the field of automobile manufacturing are required to ensure accurate, rapid and stable positioning of parts and then processing. At present, the welding process of the driving axle housing is complicated, and most of the axle housings need large flange apertures for positioning during welding, but the positioning accuracy is not high; and the axle housing has more types, different tools are needed to be used when each type of axle housing is welded, the number of tools is large, the war line is long, the personnel configuration and auxiliary material consumption are large, and the trial production period of new axle housing products is long.
The traditional tool uses a positioning disc with fixed size to position the lute hole of the axle housing when welding accessories; the positioning column and the spring form are used for supporting the positioning disc and ensuring that the positioning disc has the capability of floating up and down; the axle housing is placed, and then the two V-shaped blocks support the axle housing and are pressed; when different axle housings are processed, the original tool is disassembled, and the tool corresponding to the axle housing is replaced to weld the accessory again.
However, the conventional tooling uses the positioning plate to position the aperture and the large flange surface of the axle housing, the positioning plate is fixed in size, and because tolerance fluctuation exists in the size of the large flange hole, a gap is required to exist between the positioning plate and the large flange hole so as to adapt to the fluctuation in the size of the large flange hole, which leads to poor center positioning accuracy; the two positioning columns and the spring form are used for supporting the positioning disc, and the situation that the large flange surface of the axle housing is uneven easily occurs after the axle housing is placed on the positioning disc, so that the accuracy of center positioning is affected. The variety of axle housing is more, and each kind of axle housing needs to use different frock, and this kind of traditional frock preparation quantity is many, the battlefield is long, and personnel configuration and auxiliary material consume are many, have increased the trial production cycle of axle housing new product.
Disclosure of Invention
The invention provides an axle housing self-centering surface-fixing tool for different large flange apertures, which utilizes the dead weight of an axle housing to realize the self-tightening function of a large flange inner hole, and solves the problems that the center positioning accuracy is poor, the two positioning columns are used for supporting the positioning disk in a spring mode to cause uneven axle housing large flange surfaces, and a positioning center part needs to be frequently replaced according to the specification of the axle housing in the traditional positioning tool for positioning the large flange hole.
The technical scheme of the invention is realized as follows:
the utility model provides an axle housing self-centering surface frock for different big flange apertures, includes the bottom plate, three positioning seat is installed along annular interval at the top of bottom plate, the top fixedly connected with fixed cylinder of positioning seat, the inside spring that is provided with of fixed cylinder, the upper end cover of fixed cylinder is equipped with the removal cover, the top rotation of removal cover is provided with the locating piece, the top swing joint of locating piece has the movable block, the top of locating piece is provided with the double-screw bolt, the double-screw bolt with movable block fixed connection, the double-screw bolt drives the movable block is along three the radial movement of the circle that the positioning seat is located, the locating piece is provided with the measuring plate, the travel distance of movable block with scale on the measuring plate is corresponding.
Through the technical scheme, the stud drives the movable blocks to move, the diameter of the circle where the three movable blocks are located is matched with the diameter of the axle housing large flange hole, the end parts of the movable blocks support, fasten and fix the axle housing large flange hole, the movable blocks and the stud are matched, the whole fixture is suitable for self-centering and fastening of axle housing large flange holes of different types, the three positioning blocks are arranged in a rotating mode, the axle housing is conveniently filled, the positioning blocks can be driven to gradually rotate back to a horizontal state under the gravity action of the axle housing, the large flange end face of the axle housing is in the horizontal state, the movable sleeve, the spring and the fixed cylinder are matched, so that when the axle housing is placed on the positioning block, the movable sleeve downwards moves to compress the spring under the gravity action of the axle housing, the elastic action of the spring and the gravity action of the axle housing are opposite, the positioning blocks and the movable sleeve gradually tend to balance, the large flange end face of the axle housing is gradually in the horizontal state, and the surface fixing operation is completed.
Optionally, the spring is vertical to be placed, the upper end of spring with the inboard contact of top of removal cover, the lower extreme of spring with the top contact of positioning seat, the outside of fixed section of thick bamboo is provided with a plurality of guide slots along the hoop, the vertical setting of guide slot, the outside of removal cover be provided with the fixed orifices of guide slot one-to-one, insert in the fixed orifices and be equipped with the guide pin, the guide pin inserts in the fixed orifices with the guide slot contacts.
Through above-mentioned technical scheme, the design cooperation of guide way and guide pin provides the direction for the reciprocates of removal cover, has improved the stability and the accuracy that the removal cover drove the axle housing and reciprocates for the big flange terminal surface of axle housing pinpoints the horizontality.
Optionally, the upper end of removal cover is provided with the recess, the both ends of recess pass remove the lateral wall of cover, the locating piece is located in the recess, locating hole A has been seted up to the both sides of locating piece, insert in the locating hole A and have been equipped with the locating shaft, remove the both sides of cover seted up with locating hole B that locating hole A corresponds, the locating shaft runs through locating hole A locating hole B.
Through the technical scheme, the groove can limit the positioning block, so that the stability between the positioning block and the movable sleeve is improved, and the positioning shaft is matched with the positioning hole A and the positioning hole B, so that the positioning block cannot be separated from the movable sleeve in the rotating process, and the stability of the positioning block in the rotating process can be improved.
Optionally, a bump is disposed at the bottom of the positioning block, the bump contacts with the top of the groove, and the bump is not located at the center of the positioning block.
Through the technical scheme, the design of the lug enables the positioning block to be arranged eccentrically, and enables the positioning block to rotate with the movable sleeve, so that the axle housing is driven to keep a horizontal state under the gravity action of the axle housing. Meanwhile, the contact area between the positioning block and the groove can be reduced due to the design of the convex blocks, so that dust, impurities and the like can be cleaned conveniently after the subsequent axle housing is processed.
Optionally, the top of locating piece is provided with the guide slot, place the roller that a plurality of interval set up in the guide slot, the top of locating piece is connected with the apron through the cylindric lock can be dismantled, the apron seted up with the spacing hole of roller one-to-one, the roller is located in the spacing hole.
Through above-mentioned technical scheme, the design of roller can reduce friction, and when the axle housing was placed on the locating piece, the terminal surface and the roller contact of axle housing reduced the frictional force of axle housing removal in-process, avoided the terminal surface of axle housing to take place wearing and tearing. The limiting holes can limit the rollers, so that the rollers can keep a rolling state.
Optionally, two sides of the end parts of the three positioning blocks, which are close to each other, are respectively provided with a vertical plate, one end of each positioning block, which is far away from the cover plate, of each vertical plate is provided with a baffle, one end of each positioning block, which is provided with a stud and a movable block, is provided between each vertical plate, one end of each stud penetrates through each baffle and is in threaded connection with each baffle, the other end of each stud is fixedly connected with the end part of each movable block, and each stud drives each movable block to move through rotation.
Through the technical scheme, the baffle can support the stud, so that the stud can drive the moving block to move through rotation.
Optionally, the top of two riser in same locating piece is provided with the measuring plate, the centre of measuring plate is provided with the opening, the both sides of opening all are provided with the scale, the measuring plate is located the double-screw bolt with the top of movable block.
Through the technical scheme, the opening of the measuring plate and the design of the scales enable the moving distance of the moving block to correspond to the scales on the measuring plate in the process of pushing the moving block to move by the stud, so that the moving distance of the moving block is matched with the diameter size of the axle housing large flange hole.
Optionally, the movable block is located above the cover plate, a chute is arranged at the bottom of the movable block, and the width of the chute is matched with the length of the roller.
Through the technical scheme, the design of the sliding groove ensures that the movement of the moving block is limited, the accuracy of the moving direction of the moving block is ensured, the moving block is prevented from moving and shifting, meanwhile, the roller can reduce the friction force in the moving process of the moving block, and the moving abrasion of the moving block is reduced.
Optionally, the movable block is kept away from the one end fixedly connected with of double-screw bolt two support tight blocks that the symmetry set up from top to bottom, support the outside of tight block and be the arc, two support tight block one side that keeps away from each other and be provided with the inclined plane.
Through above-mentioned technical scheme, prop up tight piece and can prop up the big flange hole of fastening axle housing, the big flange hole of wearing and tearing axle housing can be guaranteed to curved design, and the design on inclined plane does not interfere the installation and the dismantlement of axle housing.
After the technical scheme is adopted, the invention has the beneficial effects that:
1. according to the fixture, the end face of the axle housing is kept in a horizontal state through the positioning blocks, the moving blocks and the positioning seats, the three eccentric positioning blocks are obliquely arranged in a natural state, loading of the axle housing is facilitated, when the axle housing is loaded, the top of the positioning blocks can be flattened by utilizing the gravity of the axle housing, meanwhile, the moving blocks at the top of the positioning blocks can support and fix the large flange holes of the axle housing, the self-centering and tightening effects of the large flange holes of the axle housing are achieved, the positioning of the axle housing is more accurate and reliable, the moving blocks are matched with the studs, the tightening range of the moving blocks can be adjusted, the fixture can be matched with the positioning of the large flange holes of the axle housing with different types, the universality is strong, the compatibility is good, the practicability is strong, the time and the times of replacing the fixture are reduced, the labor intensity of manpower is reduced, and the production cost is saved.
2. The measuring plate is provided with scales, the position of the moving block can be adjusted in advance according to the diameter size of the axle housing large flange hole, so that the tooling is preset according to the diameter of the axle housing large flange hole before the axle housing is machined and welded, and the center positioning and surface fixing operation of various axle housing large flange holes is realized.
3. The self-centering and tightening fixing effect of the positioning block on the axle housing is realized under the gravity action of the axle housing during the lifting of the axle housing, and manual adjustment is not needed, so that the center positioning of the axle housing is more accurate.
4. The eccentric arrangement of the positioning block enables the placement of the axle housing to be free from interference, and the arc-shaped design of the tightening block at the end part of the moving block enables the disassembly of the axle housing to be free from interference, so that collision and abrasion of the axle housing in the processing and positioning process are avoided. The roller is designed to make the axle housing roll friction when moving on the positioning block, so that the end face of the axle housing can be placed for wearing and preventing the axle housing from being blocked.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic structural diagram of the whole tool in an embodiment;
FIG. 2 is a schematic view of the structure of the positioning base, the moving sleeve, the positioning block and the moving block under the exploded explosive body in the embodiment;
FIG. 3 is a schematic cross-sectional view of the positioning block and the movable sleeve in a natural state according to the embodiment;
FIG. 4 is a schematic cross-sectional view of the positioning block and the movable sleeve in the working state according to the embodiment;
FIG. 5 is a schematic view of the structure of the positioning block in the embodiment;
fig. 6 is a schematic diagram of the structure of the moving block in the embodiment.
Reference numerals illustrate: 1. a fixed cylinder; 2. a positioning seat; 3. a bottom plate; 4. a moving sleeve; 5. a positioning block; 6. positioning a shaft; 7. a moving block; 8. a cover plate; 9. a roller; 10. a baffle; 11. a stud; 12. a measuring plate; 13. a spring; 15. positioning holes A; 16. positioning holes B; 17. a guide pin; 18. a guide groove; 19. an opening; 20. a fixing hole; 21. a groove; 22. a bump; 23. a guide groove; 24. a limiting hole; 25. a riser; 26. a chute; 27. a tightening block; 28. and (5) an inclined plane.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the application discloses an axle housing self-centering and surface-fixing tool for different large flange apertures.
Examples
According to the axle housing self-centering surface fixture for different large flange apertures shown in fig. 1 to 6, the axle housing self-centering surface fixture comprises a bottom plate 3, three positioning seats 2 are installed at the top of the bottom plate 3 along the circumferential direction at intervals, the three positioning seats 2 are located at three vertexes of an equilateral triangle, the bottom of the positioning seats 2 is detachably connected with the top of the bottom plate 3 through cylindrical pins, a fixed cylinder 1 is arranged at the top of the positioning seats 2, a spring 13 is arranged in the fixed cylinder 1, the spring 13 is vertically placed, a movable sleeve 4 is sleeved at the upper end of the fixed cylinder 1, the upper end of the spring 13 is in contact with the inner side of the top of the movable sleeve 4, the lower end of the spring 13 is in contact with the top of the positioning seats 2, two guide grooves 18 are arranged on the outer side of the fixed cylinder 1 along the circumferential direction, the guide grooves 18 are vertically arranged, fixing holes 20 corresponding to the guide grooves 18 are arranged on the outer sides of the movable sleeve 4, guide pins 17 are inserted into the fixing holes 20 and are in contact with the guide grooves 18. When the moving sleeve 4 moves downward, the spring 13 is compressed and the guide pin 17 moves downward along the guide groove 18.
The upper end of the movable sleeve 4 is provided with a groove 21, two ends of the groove 21 penetrate through the side wall of the movable sleeve 4, a positioning block 5 is arranged in the groove 21, the bottom of the positioning block 5 is provided with a convex block 22, the convex block 22 is in contact with the top of the groove 21, and the convex block 22 is not arranged in the center of the positioning block 5. The locating piece 5 has seted up locating hole A15 in both sides, insert in the locating hole A15 and have been equipped with locating shaft 6, the locating hole B16 that corresponds with locating hole A15 has been seted up to the both sides of removal cover 4, locating shaft 6 runs through locating hole A15, locating hole B16, the tip of locating shaft 6 is provided with the cotter pin, the tip that three locating piece 5 is close to each other is located equilateral triangle's three summit, the top of locating piece 5 is provided with guide slot 23, roller 9 that a plurality of interval set up have been put in the guide slot 23, the top of locating piece 5 is connected with apron 8 through the cylindric lock can be dismantled, spacing hole 24 with roller 9 one-to-one has been seted up to apron 8, roller 9 is located spacing hole 24. The bottoms of one ends of the three positioning blocks 5, which are close to each other, are arc-shaped.
The two sides of the end parts of the three positioning blocks 5, which are close to each other, are respectively provided with a vertical plate 25, the vertical plates 25 are positioned on one side of the cover plate 8, one end of each positioning block 5, which is far away from the cover plate 8, is provided with a baffle 10, a stud 11 and a moving block 7, one end of each stud 11 penetrates through the baffle 10 and is in threaded connection with the baffle 10, the other end of each stud 11 is fixedly connected with the end part of each moving block 7, each stud 11 drives the moving block 7 to move through rotation, each stud 11 drives the moving block 7 to move along the radial direction of the circle where the three positioning seats 2 are positioned, the tops of the two vertical plates 25 in the same positioning block 5 are provided with measuring plates 12, the middle of each measuring plate 12 is provided with an opening 19, scales on two sides of each opening 19 are matched with the diameter sizes of large flange holes of axle housings of different types. The measuring plate 12 is located the top of double-screw bolt 11, and movable block 7 is close to apron 8, and movable block 7 is located the top of apron 8, and the bottom of movable block 7 is provided with spout 26, and the width of spout 26 and the length phase-match of roller 9, the one end fixedly connected with that movable block 7 kept away from double-screw bolt 11 two tight supporting pieces 27 that set up of symmetry from top to bottom, the outside of tight supporting piece 27 is the arc, and one side that two tight supporting pieces 27 kept away from each other is provided with inclined plane 28.
Because the positioning accuracy of the conventional axle housing welding fixture is not high, the problem of insufficient precision existing in the welding process is amplified, and the invention improves the factor of the fixture positioning link, improves the axle housing welding precision and reduces the welding deviation. According to the invention, the gravity action of the axle housing is applied to the positioning block 5, so that the positioning block 5 gradually keeps the end face of the large flange of the axle housing in a horizontal state in the rotation process, the movable sleeve 4 and the fixed cylinder 1 move up and down through the spring 13, and the self-centering supporting and fixing of the axle housing are achieved when the gravity action of the axle housing and the elastic acting force of the spring 13 are balanced. The design of lug 22 for the locating piece 5 that three eccentric settings is the slope setting under natural state, be favorable to the loading of axle housing, when the axle housing was loaded into, can utilize the gravity of axle housing self with the top flattening of locating piece 5, the movable block 7 at locating piece 5 top can prop the fastening and fix the big flange hole of axle housing simultaneously, realize the big flange hole of axle housing from the centering and prop up tight effect, make the location of axle housing more accurate reliable, movable block 7 cooperates with double-screw bolt 11, can adjust the tight scope of propping of movable block 7, make the frock can match the location of the big flange hole of axle housing of different models, the commonality is strong, the compatibility is good, the practicality is strong, time and the number of times of changing the frock have been reduced, reduce the intensity of labour of manpower, save manufacturing cost.
Working principle:
the whole fixture is placed on a workbench, the bottom plate 3 and the workbench are fixed through cylindrical pins, parts in each fixture are installed in place, the positioning block 5 is shifted, the positioning block 5 can flexibly rotate and swing around the bump 22 in the groove 21, the positioning shaft 6 is arranged to enable the positioning block 5 to be always located in the groove 21, the positioning block 5 is placed flat, the stud 11 is screwed by using a spanner, the stud 11 pushes the moving block 7 to move while rotating, the moving block 7 moves while moving, the bottom sliding groove 26 of the moving block 7 is in contact with the roller 9, the roller 9 rolls in the limiting hole 24, the friction force of the moving block 7 in the moving process can be reduced by the roller 9, scale change on the measuring plate 12 is observed while the moving block 7 moves, when the end face of the moving block 7, far away from one end of the stud 11, is overlapped with a large flange of a bridge shell to be processed, the stud 11 is stopped to be screwed, and the size of a round hole of a supporting block 27 at the end of the three moving blocks 7 is illustrated to be matched with the diameter of the large flange hole of the bridge shell.
The axle housing to be processed is slowly hung on the positioning block 5 by using a lifting appliance, the two ends of the axle housing can be positioned and supported by using V-shaped iron (or other tools for positioning the two ends of the axle housing), the end face of the axle housing is contacted with the roller 9 on the cover plate 8, the centering of the big flange hole of the axle housing and the surface of the big flange surface of the axle housing are automatically completed under the gravity action of the axle housing by the positioning block 5, namely the big flange hole of the axle housing is tightly supported and positioned by the supporting block 27 of the moving block 7, the positioning block 5 is under the gravity action of the axle housing, the rotating and swinging are carried out in the groove 21 by taking the convex block 22 as a supporting point until the positioning block 5 is in a horizontal state, the big flange surface of the axle housing is contacted with the roller 9 on the cover plate 8 to keep horizontal, the roller 9 can reduce the friction of the big flange surface of the axle housing, the positioning block 5 is under the gravity action of the axle housing, the positioning block 5 pushes the moving sleeve 4 downwards to move, the spring 13 is compressed in the downwards moving process of the moving sleeve 4, the guide pin 17 moves downwards along the guide groove 18 to ensure the stable downwards moving of the moving sleeve 4, the spring 13 is compressed to rebound upwards, the moving sleeve 4 moves upwards under the elastic force of the spring 13, the moving sleeve 4 drives the positioning block 5 to drag the axle housing to move upwards, the moving sleeve 4 and the positioning block 5 repeatedly move upwards and downwards under the gravity action of the axle housing and the elastic action of the spring 13 until the shaft diameters at the two ends of the axle housing fall on V-shaped iron for positioning the two ends of the axle housing, the gravity action of the axle housing and the elastic action of the spring 13 reach balance, the axle housing and the tooling in the invention stop downwards moving together to finally finish the center positioning of the large flange hole of the axle housing, and the end face of the large flange of the axle housing is kept on the same horizontal plane, so as to carry out subsequent axle housing processing and operation of welding accessories.
After the axle housing is machined, the axle housing is disassembled, and impurities on the tool are cleaned up by using a dust blowing gun, so that the subsequent normal use of the tool is ensured. The design of lug 22 for there is the clearance between locating piece 5 and the recess 21 of removal cover 4, makes things convenient for follow-up impurity clearance, and the detachable design of guide slot 23 and apron 8 all is favorable to follow-up impurity clearance.
In the description of the present invention, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, unless otherwise specified and defined, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, mechanical or electrical, or may be in communication with each other between two elements, directly or indirectly through intermediaries, as would be understood by those skilled in the art, in view of the specific meaning of the terms described above.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (9)
1. The axle housing self-centering and surface-fixing tool for different large flange apertures is characterized by comprising a bottom plate, wherein three positioning seats are arranged at the top of the bottom plate along annular intervals, a fixed cylinder is fixedly connected to the top of each positioning seat, a spring is arranged in the fixed cylinder, a movable sleeve is sleeved at the upper end of the fixed cylinder, a positioning block is rotatably arranged at the top of the movable sleeve, a movable block is movably connected to the top of the positioning block, a stud is arranged at the top of the positioning block, the stud is fixedly connected with the movable block, the stud drives the movable block to move along the radial direction of a circle where each positioning seat is located, a measuring plate is arranged on the positioning block, and the moving distance of the movable block corresponds to scales on the measuring plate.
2. The axle housing self-centering and surface-fixing tool for different large flange apertures according to claim 1, wherein the spring is vertically placed, the upper end of the spring is in contact with the inner side of the top of the movable sleeve, the lower end of the spring is in contact with the top of the positioning seat, a plurality of guide grooves are formed in the outer side of the fixed cylinder in a circumferential direction, the guide grooves are vertically arranged, fixing holes in one-to-one correspondence with the guide grooves are formed in the outer side of the movable sleeve, guide pins are inserted into the fixing holes, and the guide pins are in contact with the guide grooves.
3. The axle housing self-centering and surface-fixing tool for different large flange apertures according to claim 1, wherein a groove is formed in the upper end of the movable sleeve, two ends of the groove penetrate through the side wall of the movable sleeve, the positioning block is located in the groove, positioning holes A are formed in two sides of the positioning block, positioning shafts are inserted into the positioning holes A, positioning holes B corresponding to the positioning holes A are formed in two sides of the movable sleeve, and the positioning shafts penetrate through the positioning holes A and the positioning holes B.
4. A self-centering and centering fixture for axle housings of different large flange apertures as claimed in claim 3, wherein the bottom of the positioning block is provided with a projection which is in contact with the top of the groove, the projection not being at the center of the positioning block.
5. The axle housing self-centering and surface-fixing tool for different large flange apertures according to claim 1, wherein the top of the positioning block is provided with a guide groove, a plurality of rollers arranged at intervals are placed in the guide groove, the top of the positioning block is detachably connected with a cover plate through cylindrical pins, the cover plate is provided with limiting holes in one-to-one correspondence with the rollers, and the rollers are positioned in the limiting holes.
6. The axle housing self-centering and surface-fixing tool for different large flange apertures according to claim 5, wherein vertical plates are respectively arranged on two sides of the end parts, close to each other, of three positioning blocks, a baffle is arranged on one end, far away from the cover plate, of each vertical plate in the same positioning block, a stud and a moving block are arranged between the two vertical plates in the same positioning block, one end of each stud penetrates through the baffle and is in threaded connection with the baffle, the other end of each stud is fixedly connected with the end part of the moving block, and the stud drives the moving block to move through rotation.
7. The axle housing self-centering and surface-fixing tool for different large flange apertures according to claim 6, wherein measuring plates are arranged at the tops of two vertical plates in the same positioning block, an opening is arranged in the middle of each measuring plate, scales are arranged on two sides of each opening, and the measuring plates are located above the studs and the moving blocks.
8. The axle housing self-centering and surface-fixing tool for different large flange apertures according to claim 5, wherein the moving block is located above the cover plate, a sliding groove is formed in the bottom of the moving block, and the width of the sliding groove is matched with the length of the roller.
9. The axle housing self-centering and surface-fixing tool for different large flange apertures according to claim 1, wherein one end of the moving block, which is far away from the stud, is fixedly connected with two tightening blocks which are symmetrically arranged up and down, the outer sides of the tightening blocks are arc-shaped, and inclined surfaces are arranged on one sides, which are far away from each other, of the two tightening blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202311844065.XA CN117548965A (en) | 2023-12-29 | 2023-12-29 | Axle housing self-centering and surface-fixing tool for different large flange apertures |
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| CN202311844065.XA CN117548965A (en) | 2023-12-29 | 2023-12-29 | Axle housing self-centering and surface-fixing tool for different large flange apertures |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109128911A (en) * | 2018-10-09 | 2019-01-04 | 莱芜环球汽车零部件有限公司 | A kind of self-positioning clamping device of workpiece |
| DE202020103489U1 (en) * | 2020-01-08 | 2020-10-26 | Kunshan Wispren Electronics Technology Co, .Ltd | Clamping device for welding on a folding axle |
| CN215999621U (en) * | 2021-09-28 | 2022-03-11 | 潍坊青特车桥有限公司 | Novel self-centering tightening tool for lightweight axle housing |
| CN217668919U (en) * | 2022-05-12 | 2022-10-28 | 长沙市雨花区虹德精工机械有限公司 | Automatic centering clamping device for spiral bevel gear |
| CN116160176A (en) * | 2022-12-22 | 2023-05-26 | 潍坊青特车桥有限公司 | Novel simultaneously prop up location of tight rear axle housing reinforcing ring and back lid device |
-
2023
- 2023-12-29 CN CN202311844065.XA patent/CN117548965A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109128911A (en) * | 2018-10-09 | 2019-01-04 | 莱芜环球汽车零部件有限公司 | A kind of self-positioning clamping device of workpiece |
| DE202020103489U1 (en) * | 2020-01-08 | 2020-10-26 | Kunshan Wispren Electronics Technology Co, .Ltd | Clamping device for welding on a folding axle |
| CN215999621U (en) * | 2021-09-28 | 2022-03-11 | 潍坊青特车桥有限公司 | Novel self-centering tightening tool for lightweight axle housing |
| CN217668919U (en) * | 2022-05-12 | 2022-10-28 | 长沙市雨花区虹德精工机械有限公司 | Automatic centering clamping device for spiral bevel gear |
| CN116160176A (en) * | 2022-12-22 | 2023-05-26 | 潍坊青特车桥有限公司 | Novel simultaneously prop up location of tight rear axle housing reinforcing ring and back lid device |
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