Aluminum alloy pipe machining clamp for automobile

Abstract

An aluminum alloy pipe machining clamp for an automobile is used for solving the technical problem that debugging products of small-size non-standard pipes are difficult to fix and comprises a chassis fixing plate, a positioning reference block and a longitudinal locking mechanism. Each positioning reference block comprises a supporting part and a limiting part, the supporting part is located on one side of the limiting part, the supporting part is used for supporting the pipe in the vertical direction, the limiting part is used for limiting the position of the pipe in the transverse direction, and the positioning reference blocks can be arranged on the left side and the rightmost side of the pipe correspondingly to clamp and fix the pipe. The longitudinal locking mechanism is used for applying vertical downward pressure to the pipe and further fixing the pipe and comprises a cam handle, a cam rotating shaft, a fixing rod, a nut and a fixing block; a vertically-through through hole is formed in the fixing block, the cam rotating shaft penetrates through the through hole in the fixing block, the cam handle is connected with the upper end of the fixing rod through the cam rotating shaft, the cam face of the cam handle abuts against the fixing block, and downward pressure is applied to the fixing block through the cam handle to press a pipe.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of automobile technology, and particularly relates to an aluminum alloy pipe machining clamp for automobiles. BACKGROUND

[0002] The clamp widely used in the manufacturing industry is one of the most important process equipment in the product manufacturing process, and the quality, work efficiency and reliability of the clamp used in production have a decisive influence on the processing quality and production efficiency of the product. For some small-sized non-standard pipe products, directly placing them on the machine tool can easily lead to low machining precision and technical problems such as deformation of the product due to the lack of a suitable fixing clamp. SUMMARY

[0003] Therefore, the utility model discloses an aluminum alloy pipe machining clamp for automobiles, and a specific scheme is as follows:

[0004] An aluminum alloy pipe machining clamp for automobiles is used for fixing and limiting the aluminum alloy pipe, comprising a chassis fixing plate, a positioning reference block and a longitudinal locking mechanism.

[0005] The chassis fixing plate is in a plate structure, and a plurality of through holes are uniformly arranged on the chassis fixing plate.

[0006] The positioning reference block comprises a supporting part and a limiting part, the supporting part is located on one side of the limiting part, the lower bottom surfaces of the supporting part and the limiting part are located on the same plane, the upper end surface of the limiting part is higher than the upper end surface of the supporting part, a vertical through hole is arranged on the limiting part, and the limiting part is fixed on the chassis fixing plate through bolts; the aluminum alloy pipe is placed on the chassis fixing plate, at least one set of positioning reference blocks is arranged on each side of the aluminum alloy pipe, the aluminum alloy pipe is arranged on the supporting part of the positioning reference block, and the limiting part abuts against the side surface of the aluminum alloy pipe.

[0007] The longitudinal locking mechanism is arranged on the chassis fixing plate and located on one side of the aluminum alloy pipe, and comprises a cam handle, a cam shaft, a fixing rod, a nut and a fixing block; a vertical through hole is arranged on the fixing block, the fixing rod passes through the through hole on the fixing block, the cam handle is connected to the upper end of the fixing rod through the cam shaft, the cam surface of the cam handle abuts against the fixing block, the fixing block is located above the aluminum alloy pipe, the lower part of the fixing rod is provided with a screw thread, the nut is screwed on the lower part of the fixing rod, the nut is provided with at least two sets, the lower end of the fixing rod passes through the through hole on the chassis fixing plate, the two adjacent nuts on the fixing rod are screwed to clamp the chassis fixing plate, and the fixing rod is fixed on the chassis fixing plate.

[0008] As a supplement to the technical scheme of the utility model, the through hole on the fixing block is a strip-shaped through hole.

[0009] As a supplementary scheme of the utility model, the V-shaped positioning block is fixed on the bottom disc fixed plate, a V-shaped groove is arranged on the upper end face of the V-shaped positioning block, and the aluminum alloy pipe is located in the V-shaped groove.

[0010] As a supplementary scheme of the utility model, vertical grooves are arranged on the left and right end faces of the V-shaped positioning block.

[0011] As a supplementary scheme of the utility model, a group of positioning reference blocks are arranged at the two ends of the aluminum alloy pipe along the length direction.

[0012] As a supplementary scheme of the utility model, a transverse sliding block locking device is further arranged on the bottom disc fixed plate and located at one side of the aluminum alloy pipe; the transverse sliding block locking device comprises a fixed base, a shaft sleeve, an extension shaft, a rotary support base, a rotating handle, a connecting piece, a connecting rod, and the like.

[0013] A vertical through hole is arranged on the fixed base and used for being fixed on the bottom disc fixed plate through a bolt, the rotary support base is arranged on the fixed base, the right end of the connecting piece is hinged to the upper end of the rotary support base through a first rotating shaft, one end of the rotating handle is fixedly connected to the left end of the connecting piece, the shaft sleeve is arranged on the fixed base and located at the left side of the rotary support base, the right end of the extension shaft passes through the shaft sleeve and is hinged to the left end of the connecting rod through a second rotating shaft, and the right end of the connecting rod is hinged to the right part of the connecting piece through a third rotating shaft.

[0014] As a supplementary scheme of the utility model, when the rotating handle is counterclockwise rotated to be in contact with the shaft sleeve, the third rotating shaft is located below the horizontal height of the second rotating shaft.

[0015] As a supplementary scheme of the utility model, a limiting block is arranged on the left end of the extension shaft, and the limiting block is screwed with the extension shaft.

[0016] As a supplementary scheme of the utility model, the limiting block is made of rubber.

[0017] Beneficial effects: the aluminum alloy pipe machining clamp disclosed by the utility model can support and position the aluminum alloy pipe in the transverse direction through the positioning reference blocks, and can fix the pipe in the vertical direction through the longitudinal locking device, so as to further improve the fixing precision of the aluminum alloy pipe and complete the further limiting in the transverse direction through the setting of the transverse sliding block locking device. Through the above setting, the clamping and positioning of the aluminum alloy pipe during machining can be realized, and the technical problem of low machining precision caused by poor positioning precision is solved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0019] Figure 2The utility model discloses a three-dimensional structure schematic diagram.

[0020] Figure 3 The utility model discloses a three-dimensional structure schematic diagram.

[0021] Figure 4 The utility model discloses a positioning reference block structure schematic diagram.

[0022] Figure 5 The utility model discloses a three-dimensional structure schematic diagram of V-shaped positioning block.

[0023] Figure 6 The utility model discloses a three-dimensional structure schematic diagram of longitudinal locking mechanism.

[0024] Figure 7 The utility model discloses a three-dimensional structure schematic diagram of transverse sliding block locking device.

[0025] In the drawing: 1. chassis fixed plate, 2. positioning reference block, 3. support part, 4. limiting portion, 5. longitudinal locking mechanism, 6. cam handle, 7. cam pivot, 8. fixed link, 9. nut, 10. fixed block, 11. V-shaped positioning block, 12. transverse sliding block locking device, 13. fixed base, 14. shaft sleeve, 15. telescopic axle, 16. rotary support seat, 17. rotary handle, 18. connecting piece, 19. connecting rod, 20. first pivot, 21. second pivot, 22. third pivot, 23. limiting block. DETAILED DESCRIPTION

[0026] In the description of the utility model, need understanding, the term " first " " second " only for the purpose of description, and can not be understood as indicating or implying relative importance or the number of the indicated technical features. Thus, the feature of " first " " second " can be explicitly or implicitly include at least one the feature. In the description of the utility model, the meaning of " multiple " is at least two, for example two, three etc. Unless otherwise specifically limited.

[0027] In the utility model, unless otherwise specifically defined and limited, the terms " install " " connect " " connect " " fixed " and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral ; Can be mechanical connection, or electrical connection or can communicate with each other, can be directly connected, can also be indirectly connected through the intermediate medium, can be the communication or interaction relationship of two elements inside two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0028] As Figures 1 to 7As shown, an aluminum alloy pipe machining clamp for automobile includes a chassis fixing plate 1, a positioning reference block 2, and a longitudinal locking mechanism 5.

[0029] The chassis fixing plate 1 is a plate structure with a plurality of through holes uniformly arranged thereon.

[0030] The positioning reference block 2 includes a support part 3 and a limiting part 4. The support part 3 is integrally formed with the limiting part 4, is located on one side of the limiting part 4, and has a lower bottom surface located on the same plane as that of the limiting part 4. The upper end surface of the limiting part 4 is higher than that of the support part 3. A vertical through hole is arranged on the limiting part 4. The limiting part 4 is fixed to the chassis fixing plate 1 by a bolt. The support part 3 is used to support the bottom of the aluminum alloy pipe workpiece, so that the aluminum alloy pipe workpiece does not directly contact the chassis fixing plate 1, thereby preventing the aluminum alloy pipe workpiece from being scratched by the chassis fixing plate 1 during machining.

[0031] The longitudinal locking mechanism 5 includes a cam handle 6, a cam shaft 7, a fixed rod 8, a nut 9, and a fixed block 10.

[0032] The fixed block 10 is provided with a vertical through hole, and the fixed rod 8 passes through the through hole of the fixed block 10, with its upper end located above the fixed block 10 and its lower end located below the fixed block 10. The cam handle 6 is connected to the upper end of the fixed rod 8 through the cam shaft 7, and the cam surface of the cam handle 6 abuts against the fixed block 10. The lower part of the fixed rod 8 is provided with a thread, and the nut 9 is screwed onto the lower part of the fixed rod 8. The nut 9 is provided with at least two groups. The lower end of the fixed rod 8 passes through the through hole of the chassis fixing plate 1, and the two adjacent nuts 9 on the fixed rod 8 are tightened to clamp the chassis fixing plate 1, thereby fixing the fixed rod 8 to the chassis fixing plate. By tightening the cam handle 6, the cam surface is pressed against the fixed block 10, and the fixed block 10 exerts a downward pressure on the pipe. Through the cooperation of the longitudinal locking mechanism 5 and the positioning reference block 2, the pipe is fixed and limited, and the pipe is convenient for machining.

[0033] Preferably, according to the length of the square pipe, a plurality of groups of the longitudinal locking mechanism 5 and the positioning reference block 2 can be arranged along the length direction of the square pipe.

[0034] As a supplement to the above technical solution, the through hole of the fixed block 10 is a strip-shaped through hole, and the position of the fixed rod 8 in the strip-shaped through hole can be adjusted according to the shape of the pipe to adjust the contact area between the fixed block 10 and the pipe.

[0035] As the preferred technical scheme of the utility model, when the aluminum alloy pipe to be positioned is a round pipe, since the outer wall of the round pipe is an arc structure, only using the positioning reference block 2 to limit, it is difficult to be fitted with the positioning reference block 2, resulting in poor positioning effect. The pipe machining clamp further comprises a V-shaped positioning block 11, a V-shaped groove is arranged on the upper end face of the V-shaped positioning block 11, and the V-shaped positioning block 11 can be suitable for positioning of pipes with different diameters. The V-shaped positioning block 11 is arranged on the bottom disc fixing plate 1 and below the round pipe.

[0036] As a supplement to the above technical scheme, in order to fix the V-shaped positioning block 11 on the bottom disc fixing plate 1, vertical grooves are arranged on the left and right end faces of the V-shaped positioning block 11, the vertical grooves are used for arranging bolts, the rod parts of the bolts are arranged in the grooves of the V-shaped positioning block 11, and the V-shaped positioning block 11 is limited.

[0037] As the preferred technical scheme of the utility model, in order to further limit the pipe, a positioning reference block 2 is further arranged at the end in the length direction of the pipe.

[0038] In the above technical scheme, since the V-shaped groove is arranged on the V-shaped positioning block 11, instead of a groove completely matched with the outer periphery of the pipe arranged according to the size of the pipe, under the working condition with high requirement for positioning accuracy, when the upper surface of the pipe needs to be machined, in order to avoid the problem of space position interference, it is necessary to avoid arranging the longitudinal locking mechanism 5 on the position to be machined as far as possible, and thus in order to further position the pipe with high accuracy, as the preferred technical scheme of the utility model, a transverse sliding block locking device 12 is further arranged on one side of the pipe, specifically the left side or the right side. At least one set of positioning reference blocks 2 is arranged on the other side of the transverse sliding block locking mechanism.

[0039] The transverse sliding block locking device 12 comprises a fixed base 13, a shaft sleeve 14, an extension shaft 15, a rotary support seat 16, a rotating handle 17, a connecting piece 18 and a connecting rod 19.

[0040] The fixed base 13 is provided with a vertical through hole, is fixed on the bottom disc fixing plate 1 through a bolt, the rotary support seat 16 is arranged on the fixed base 13, the right end of the connecting piece 18 is hinged to the upper end of the rotary support seat 16 through a first rotating shaft 20, one end of the rotating handle 17 is fixedly connected with the left end of the connecting piece 18, so that the connecting piece 18 can rotate around the rotary support seat 16 with the first rotating shaft 20 as the axis center during the rotation of the rotating handle 17.

[0041] The shaft sleeve 14 is arranged on the fixed base 13 and located at the left side of the rotary support seat 16, the right end of the extension shaft 15 passes through the shaft sleeve 14 and is hinged to the left end of the connecting rod 19 through a second rotating shaft 21, the right end of the connecting rod 19 is hinged to the right part of the connecting piece 18 through a third rotating shaft 22, and the third rotating shaft 22 is located at the left side of the first rotating shaft 20.

[0042] Through the above setting, when the rotating handle 17 rotates, the connecting piece 18 is pulled to drive the connecting rod 19 to push and pull the telescopic shaft 15 to perform the telescopic movement, and the telescopic shaft 15 applies the transverse clamping force to the pipe, and cooperates with the positioning reference block 2 on the other side of the pipe to clamp the pipe, and the longitudinal locking mechanism 5 can be arranged at the non-processing position of the pipe. It should be noted that the transverse sliding block locking device 12 can also be applied to the fixing scene of the aluminum alloy square tube, and cooperates with the positioning reference block 2 to complete the accurate positioning of the aluminum alloy square tube.

[0043] As shown in Figure 7 The transverse sliding block locking device 12 has a self-locking function, specifically, when the rotating handle 17 rotates to the left side and the third rotating shaft 22 is below the horizontal height of the second rotating shaft 21, the self-locking function is realized. When the telescopic shaft 15 moves to the right, the connecting rod 19 applies a right-down force to the position of the third rotating shaft 22, which promotes the connecting piece 18 to rotate counterclockwise, and at this time, the rotating handle 17 is interfered with the shaft sleeve 14 in space position, so that the rotating handle 17 cannot move further downward due to the obstruction of the shaft sleeve 14, and the self-locking function is completed.

[0044] As a supplement to the above technical solution, since different pipe diameters are different, the spacing size of the through holes on the bottom plate fixing plate is a fixed value, in order to realize that when the rotating handle 17 rotates counterclockwise to contact the shaft sleeve 14, the left end of the telescopic shaft 15 is in contact with the pipe, the length of the telescopic shaft 15 needs to be adjusted. In view of this, the left end of the telescopic shaft 15 is provided with a limiting block 23, and the limiting block 23 is screwed with the left end of the telescopic shaft 15. By tightening or loosening the limiting block 23, the position of the left end of the limiting block 23 is adjusted.

[0045] As a supplement to the above technical solution, in order to avoid scratching the pipe by the limiting block 23, the limiting block 23 is made of rubber material.

[0046] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the disclosed technical scope, which should be covered within the protection scope of the present application.

Claims

1. A machining fixture for aluminum alloy tubing used in automobiles, for fixing and limiting aluminum alloy tubing, characterized in that, It comprises a chassis fixing plate (1), a positioning reference block (2) and a longitudinal locking mechanism (5). The chassis fixing plate (1) is in a plate structure and is provided with a plurality of through holes in an array. The positioning reference block (2) comprises a supporting part (3) and a limiting part (4), the supporting part (3) is located on one side of the limiting part (4), the lower bottom surfaces of the supporting part (3) and the limiting part (4) are located on the same plane, the upper end surface of the limiting part (4) is higher than the upper end surface of the supporting part (3), the limiting part (4) is provided with a vertical through hole, and the limiting part (4) is fixed on the chassis fixing plate (1) through a bolt; the aluminum alloy pipe is placed on the chassis fixing plate (1), at least one set of positioning reference blocks (2) is arranged on the two sides of the aluminum alloy pipe, the aluminum alloy pipe is arranged on the supporting part (3) of the positioning reference block (2), and the limiting part (4) is in abutment with the side surface of the aluminum alloy pipe. The longitudinal locking mechanism (5) is arranged on the chassis fixing plate (1) and located on one side of the aluminum alloy pipe, and comprises a cam handle (6), a cam rotating shaft (7), a fixing rod (8), a nut (9) and a fixing block (10); the fixing block (10) is provided with a vertical through hole, the fixing rod (8) passes through the through hole in the fixing block (10), the cam handle (6) is connected with the upper end of the fixing rod (8) through the cam rotating shaft (7), the cam surface of the cam handle (6) is in abutment with the fixing block (10), the fixing block (10) is located above the aluminum alloy pipe, the lower part of the fixing rod (8) is provided with a screw thread, the nut (9) is screwed on the lower part of the fixing rod (8), the nut (9) is provided with at least two sets, the lower end of the fixing rod (8) passes through the through hole in the chassis fixing plate (1), the two adjacent nuts (9) on the fixing rod (8) are screwed to clamp the chassis fixing plate (1), and the fixing rod (8) is fixed on the chassis fixing plate.

2. The aluminum alloy pipe machining jig for an automobile according to claim 1, characterized by The through hole in the fixing block (10) is a strip-shaped through hole.

3. The fixture for processing of an aluminum alloy pipe for an automobile according to claim 1, wherein The V-shaped positioning block (11) is fixed on the chassis fixing plate (1), the upper end surface of the V-shaped positioning block (11) is provided with a V-shaped groove, and the aluminum alloy pipe is located in the V-shaped groove.

4. The aluminum alloy pipe processing jig for an automobile according to claim 3, characterized by The left and right end surfaces of the V-shaped positioning block (11) are provided with vertical grooves.

5. The fixture for processing of an aluminum alloy pipe for an automobile according to claim 1, characterized by A set of positioning reference blocks (2) are arranged at the two ends in the length direction of the aluminum alloy pipe.

6. The fixture for processing of an aluminum alloy pipe for an automobile according to claim 1, wherein The transverse sliding block locking device (12) is arranged on the chassis fixing plate (1) and located on one side of the aluminum alloy pipe, and comprises a fixing base (13), a shaft sleeve (14), an extension shaft (15), a rotary support base (16), a rotating handle (17), a connecting piece (18) and a connecting rod (19). The fixed base (13) is provided with a vertical through hole for being fixed on the chassis fixed plate (1) by bolts, the rotating support base (16) is arranged on the fixed base (13), the right end of the connecting piece (18) is hinged to the upper end of the rotating support base (16) through a first rotating shaft (20), one end of the rotating handle (17) is fixedly connected with the left end of the connecting piece (18), the shaft sleeve (14) is arranged on the fixed base (13) and located at the left side of the rotating support base (16), the right end of the telescopic shaft (15) passes through the shaft sleeve (14) and is hinged to the left end of the connecting rod (19) through a second rotating shaft (21), and the right end of the connecting rod (19) is hinged to the right part of the connecting piece (18) through a third rotating shaft (22).

7. The aluminum alloy pipe processing jig for an automobile according to claim 6, characterized by When the rotating handle (17) is counterclockwise rotated to contact the shaft sleeve (14), the third rotating shaft (22) is located below the horizontal height of the second rotating shaft (21).

8. The fixture for processing of an aluminum alloy pipe for an automobile according to claim 6, wherein The left end of the telescopic shaft (15) is provided with a limiting block (23), and the limiting block (23) is screwed with the telescopic shaft (15).

9. The aluminum alloy pipe processing jig for an automobile according to claim 8, characterized by The limiting block (23) is made of rubber.

Images