Middle bridge rear cover fixture

Abstract

The present invention discloses a clamp for a middle bridge rear cover, comprising a bracket, a clamping slide, a plurality of clamping claws and an angle-matching structure; the plurality of clamping claws can be relatively slidably connected to the clamping slide and are distributed in a ring shape, and a clamping space for clamping the middle bridge rear cover is formed between the plurality of clamping claws; the angle-matching structure is located outside the clamping space, and comprises a line-marking seat and a slider, the line-marking seat is provided with an arc-shaped slide coaxial with the clamping space along the circumference of the clamping space, the line-marking seat also has an angle marking portion for aligning with the marking portion of the middle bridge rear cover and provided along the circumference of the slide, the angle marking portion is located outside the slide and the two correspond, the slider slides in cooperation with the slide, and the two ends of the slider correspond to the marking portion and the angle marking portion respectively. Through this structural design, the radial positioning of the bottom hole to be processed can be completed by directly aligning the marking portion of the middle bridge rear cover with the scale of the angle marking portion, thereby achieving rapid positioning.

Description

Technical Field

[0001] The invention relates to the technical field of automobile component positioning devices, and in particular to a mid-bridge rear cover clamp. Background Art

[0002] When the bottom hole to be processed of the rear cover of the center bridge of a heavy-duty vehicle is being milled, the rear cover needs to be clamped by a fixture to position it. The existing fixture includes a bracket, a base installed on the bracket and a plurality of claws provided on the base, and the plurality of claws are distributed in a ring shape. When the clamp clamps the rear cover of the center bridge, the rear cover of the center bridge is placed on the plurality of claws, and then the operator adjusts the bottom hole to be processed to the correct position in the radial direction of the rear cover of the center bridge. After the adjustment is completed, the plurality of claws clamp the rear cover of the center bridge, and then the milling of the bottom hole is performed. However, in the process of adjusting the position of the bottom hole to be processed, the operator needs to adjust it repeatedly to adjust it to the correct position, resulting in low work efficiency. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a center bridge rear cover clamp that can quickly and accurately adjust the bottom hole portion to be processed of the center bridge rear cover to the correct position.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] The mid-bridge rear cover fixture includes a bracket, a clamping slide, a plurality of clamping claws and an angle structure, wherein the clamping slide and the angle structure are mounted on the bracket;

[0006] The plurality of clamping claws are relatively slidably connected to the clamping slide and are distributed in a ring shape, and a clamping space for clamping the rear cover of the middle bridge is formed between the plurality of clamping claws;

[0007] The angle-matching structure is located on the outside of the clamping space, and includes a line seat and a slider. The line seat is provided with an arc-shaped slide groove coaxial with the clamping space along the circumference of the clamping space. The line seat also has an angle identification portion for aligning with the marking portion of the middle bridge rear cover and arranged along the circumference of the slide groove. The angle identification portion is located on the outside of the slide groove and the two correspond to each other. The slider slides in cooperation with the slide groove, and the two ends of the slider correspond to the marking portion and the angle identification portion respectively.

[0008] Furthermore, the diagonal structure includes an diagonal slide seat provided on the top of the line seat, the bottom of the diagonal slide seat is slidably engaged with the slide groove, and the slider is provided on the diagonal slide seat.

[0009] Furthermore, a connecting groove is provided on the inner side wall of the angled sliding seat close to the clamping space along the radial direction of the clamping space, and the sliding block is fitted in the connecting groove.

[0010] Furthermore, the diagonal structure includes a nut provided in the slide groove, the nut is slidably matched with the slide groove, and the diagonal slide seat is connected to the nut via a connecting screw.

[0011] Furthermore, the top surface of the diagonal slide is provided with connecting holes downwardly on opposite sides along the circumference of the slide groove, and the connecting holes pass through the diagonal slide and are provided with positioning sleeves therein, and the positioning sleeves are provided with the connecting screws connected to the nut, and the bottom end of the positioning sleeves extends into the top end of the slide groove.

[0012] Furthermore, the slide groove is recessed downward from the top surface of the line seat and passes through the line seat along the circumference of the clamping space, and the bottom end width of the slide groove is greater than the top end width.

[0013] Furthermore, the angle identification portion is located outside the side of the slide groove away from the clamping space, and a guide portion is provided on the top of the slider. The two ends of the guide portion respectively correspond to the scale lines of the marking portion and the angle identification portion and gradually shrink in opposite directions in the radial direction of the clamping space.

[0014] Furthermore, it also includes a connecting plate installed on the top surface of the bracket, one end of the connecting plate is rotatably connected to the bracket, the clamping slide and the diagonal structure are installed on the top surface of the connecting plate, and the top surface of the connecting plate is also equipped with a positioning pin for cooperating with the through hole of the middle bridge rear cover.

[0015] Furthermore, the top surface of the bracket is provided with a plurality of ball screws, the connecting plate is supported by the plurality of ball screws, there are three clamping slides, and the three clamping slides are distributed in a ring matrix, and the top surface of each clamping slide is downwardly recessed with a mounting groove, and each mounting groove is slidably connected to a claw.

[0016] The angle structure of the center bridge rear cover clamp of the present invention is achieved by providing a scaled seat with an angle marking portion and a slider that slides with the sliding groove of the scaled seat, so that the slider can slide to the angle required for the bottom hole to be processed of the center bridge rear cover. When clamping the center bridge rear cover, the marking portion of the center bridge rear cover is directly aligned with the scale of the angle marking portion to complete the positioning of the bottom hole to be processed in the radial direction of the center bridge rear cover, thereby quickly and accurately adjusting the bottom hole to be processed to the correct position. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a cross-sectional view of the axle rear cover clamp of the present invention;

[0018] Figure 2 for Figure 1 K direction front view;

[0019] Figure 3 for Figure 2 A front view of the diagonal structure;

[0020] Figure 4 for Figure 3 AA direction cross-sectional view;

[0021] Figure 5 for Figure 3 Three views of the ruled seat;

[0022] Figure 6 for Figure 3 The front view and top view of the diagonal slide;

[0023] Figure 7 for Figure 3 Three views of the slider. DETAILED DESCRIPTION

[0024] Below, in conjunction with the accompanying drawings and specific embodiments, the present invention is further described:

[0025] like Figures 1 to 7 As shown, the present invention provides a center axle rear cover fixture, mounted on a machine tool (not shown), for clamping the center axle rear cover 100 of a heavy-duty vehicle during milling of the bottom hole 103 of the center axle rear cover 100. The center axle rear cover 100 is typically a truck axle rear cover. The center axle rear cover fixture includes a bracket 1, a connecting plate 5 mounted on the bracket 1, a clamping slide 2, a plurality of clamping claws 3, and an angled structure 4. The clamping slide 2 and the angled structure 4 are mounted on the connecting plate 5, and the plurality of clamping claws 3 are connected to the clamping slide 2.

[0026] like Figure 1 、 Figure 2 As shown, the top surface of bracket 1 is connected to multiple ball screws 8. A connecting plate 5 is mounted on the top surface of bracket 1 and supported by these ball screws 8. One end of connecting plate 5 is rotatably connected to bracket 1 to adjust the connecting plate's angle relative to bracket 1. This allows the bottom hole to be machined on the center bridge rear cover to be aligned vertically, facilitating vertical feed of the machine tool's milling tool. Furthermore, the support of connecting plate 5 by ball screws 8 allows precise adjustment of its angle relative to bracket 1, further improving positioning accuracy. The top surface of the connecting plate 5 can also be detachably installed with a positioning pin 6 for cooperating with the through hole 102 of the center bridge rear cover 100, so as to further position the center bridge rear cover 100 in the radial direction of the center bridge rear cover 100, so as to further improve the positioning accuracy. Of course, in the embodiment, when other models of center bridge rear covers 100 do not have high requirements on the processing accuracy of the bottom hole 103 or the center bridge rear cover 100 is not provided with this through hole 102, the positioning pin 6 can be removed to adapt to the positioning requirements of different models of center bridge rear covers 100.

[0027] like Figure 1 、 Figure 2 As shown, a clamping slide 2 is mounted on the top surface of a connecting plate 5. In this embodiment, there are three clamping slides 2 arranged in a circular matrix. A mounting groove 21 is recessed downwardly on the top surface of each clamping slide 2. Multiple clamping claws 3 are slidably connected to the clamping slide 2 and arranged in a circular pattern. Specifically, there are three clamping claws 3, each of which is slidably connected to a mounting groove 21. A clamping space 31 for clamping the mid-bridge rear cover 100 is defined between the three clamping claws 3. By arranging the clamping claws 3 to be slidably connected to the mounting groove 21, the mid-bridge rear cover clamp can clamp mid-bridge rear covers 100 of different sizes, thereby expanding its range of uses.

[0028] like Figure 2 、 Figure 3 As shown, the angle structure 4 is installed on the top surface of the connecting plate 5 and is located outside the clamping space 31. It includes a scoreline seat 41 and a slider 42. The scoreline seat 41 is provided with an arc-shaped slide 411 coaxial with the clamping space 31 along the circumference of the clamping space 31. The scoreline seat 41 also has an angle marking portion 412 for aligning with the marking portion 101 of the middle bridge rear cover 100 and provided along the circumference of the slide 411. Specifically, as Figure 3 、 Figure 4 As shown, the slide groove 411 is recessed downward from the top surface of the score seat 41 and passes through the score seat 41 along the circumference of the clamping space 31. The bottom width of the slide groove 411 is greater than the top width (as shown in FIG. Figure 5 As shown). An angle scale line is marked on it, and the angle marking portion 412 is located outside the slide groove 411 and the two correspond to each other. More specifically, the angle marking portion 412 is located outside the slide groove 411 on a side away from the clamping space 31. The slider 42 slides in cooperation with the slide groove 411, and the two ends of the slider 42 correspond to the marking portion 101 and the angle marking portion 412, respectively. The angle structure 4 is provided with a scale seat 41 having an angle marking portion 412 and a slider 42 that slides in cooperation with the slide groove 411 of the scale seat 41, so that the slider 42 can slide to the angle required for the bottom hole to be processed of the center bridge rear cover 100. When the center bridge rear cover 100 is clamped, the marking portion 101 of the center bridge rear cover 100 is directly aligned with the scale of the angle marking portion 412 to complete the positioning of the bottom hole to be processed in the radial direction of the center bridge rear cover 100, thereby achieving rapid and accurate adjustment of the bottom hole to be processed to the correct position, thereby improving positioning accuracy. In addition, when processing the bottom hole 103 of different models of the center bridge rear cover 100, the angle of the slider 42 is adjusted according to actual needs. The operator uses the slider 42 as a reference to adjust the position of the bottom hole to be processed in the center bridge rear cover 100, thereby achieving the purpose of expanding the scope of use and simplifying the structure.

[0029] like Figure 4 、 Figure 6As shown, in order to simplify the structure, the angle structure 4 further includes an angle slide 43 provided on the top of the line seat 41, the bottom of the angle slide 43 is slidably matched with the slide groove 411, and the slider 42 is provided on the angle slide 43. Specifically, the inner side wall of the angle slide 43 close to the clamping space 31 is provided with a connecting groove 431 along the radial direction of the clamping space 31, and the slider 42 is loosely fitted in the connecting groove 431. Figure 3 、 Figure 7 As shown, an indexing portion 421 is further provided on the top of the slider 42, and the two ends of the indexing portion 421 correspond to the marking portion 101 of the center bridge rear cover 100 and the scale lines of the angle identification portion 412 respectively, and gradually shrink in opposite directions in the radial direction of the clamping space 31 to facilitate accurate indication of the scale lines of the angle identification portion 412. Of course, in other embodiments, identification lines can also be directly drawn on the indexing portion 421 for easy reading, and the specific selection can be made according to actual needs.

[0030] like Figure 4 、 Figure 6 As shown, to simplify the structure, the angle structure 4 further includes a nut 44 disposed in the slide groove 411. The nut 44 is a T-shaped nut 44 that slides in engagement with the slide groove 411. The head of the T-shaped nut 44 is loosely fitted within the lower end of the slide groove 411, and the stem of the T-shaped nut 44 is loosely fitted within the upper end of the slide groove 411. The angle slide 43 is connected to the T-shaped nut 44 via connecting screws 45. More specifically, the top surface of the angle slide 43 is provided with connecting holes 432 on opposite sides of the circumference of the slide groove 411. The connecting holes 432 penetrate the angle slide 43 and are provided with positioning sleeves 433 therein. The positioning sleeves 433 are provided with connecting screws 45 that are connected to the nut 44. The bottom end of the positioning sleeves 433 extends into the top end of the slide groove 411 to improve the connection accuracy between the angle slide 43 and the slide groove 411.

[0031] In this embodiment, 21° is used as the required processing angle of the bottom hole 103. When clamping the middle bridge rear cover 100, slide the slider 42 until the guide portion 421 is aligned with the scale line 21°, then open the three claws 3, and place the middle bridge rear cover 100 into the clamping space 31. Then rotate the middle bridge rear cover 100. When the marking portion 101 is aligned with the guide portion 421, the radial positioning is completed. Then the three claws 3 slide toward the middle bridge rear cover 100 to clamp the middle bridge rear cover 100, and then rotate the connecting plate 5 to adjust the bottom hole portion to be processed of the middle bridge rear cover 100 to a position perpendicular to the milling tool (not shown) (that is, the position where the center line of the bottom hole 103 is perpendicular to the horizontal direction). The clamping is completed, and in this process, the angle of the connecting plate 5 relative to the bracket 1 can be fine-tuned by rotating the ball head screw 8, so as to achieve the purpose of fine-tuning the middle bridge rear cover 100.

[0032] The angle structure of the center bridge rear cover clamp of the present invention is achieved by providing a scaled seat with an angle marking portion and a slider that slides with the sliding groove of the scaled seat, so that the slider can slide to the angle required for the bottom hole to be processed of the center bridge rear cover. When clamping the center bridge rear cover, the marking portion of the center bridge rear cover is directly aligned with the scale of the angle marking portion to complete the positioning of the bottom hole to be processed in the radial direction of the center bridge rear cover, thereby quickly and accurately adjusting the bottom hole to be processed to the correct position.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein, and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. The middle bridge rear cover fixture is characterized by: It includes a bracket, a clamping slide, a plurality of claws and an angle structure, wherein the clamping slide and the angle structure are installed on the bracket; The plurality of clamping claws are relatively slidably connected to the clamping slide and are distributed in a ring shape, and a clamping space for clamping the rear cover of the middle bridge is formed between the plurality of clamping claws; The angle structure is located outside the clamping space, and includes a scaled seat and a slider. The scaled seat is provided with an arc-shaped slide groove coaxial with the clamping space along the circumference of the clamping space. The slide groove is recessed downward from the top surface of the scaled seat and passes through the scaled seat along the circumference of the clamping space. The bottom end width of the slide groove is greater than the top end width. The scaled seat also has an angle identification portion for aligning with the marking portion of the middle bridge rear cover and arranged along the circumference of the slide groove. The angle identification portion is located outside the slide groove and the two correspond to each other. The angle identification portion On the side of the slide groove away from the clamping space, a guide part is provided on the top of the slider, and the two ends of the guide part respectively correspond to the scale lines of the marking part and the angle identification part and gradually shrink in opposite directions in the radial direction of the clamping space. The slider slides in cooperation with the slide groove, and the two ends of the slider respectively correspond to the marking part and the angle identification part; wherein, the angle structure includes an angle slide seat provided on the top of the scale seat, the bottom of the angle slide seat slides in cooperation with the slide groove, and the slider is provided on the angle slide seat.

2. The mid-bridge rear cover clamp according to claim 1, characterized in that: The inner side wall of the angled sliding seat close to the clamping space is provided with a connecting groove along the radial direction of the clamping space, and the sliding block is fitted in the connecting groove.

3. The mid-bridge rear cover clamp according to claim 1, characterized in that: The diagonal structure includes a nut arranged in the slide groove, the nut is slidably matched with the slide groove, and the diagonal slide seat is connected to the nut via a connecting screw.

4. The mid-bridge rear cover clamp according to claim 3, characterized in that: The top surface of the diagonal slide is provided with connecting holes downwardly on opposite sides along the circumference of the slide groove. The connecting holes pass through the diagonal slide and are provided with positioning sleeves therein. The positioning sleeves are provided with the connecting screws connected to the nut, and the bottom end of the positioning sleeves extends into the top end of the slide groove.

5. The mid-bridge rear cover clamp according to claim 1, characterized in that: It also includes a connecting plate installed on the top surface of the bracket, one end of the connecting plate is rotatably connected to the bracket, the clamping slide and the diagonal structure are installed on the top surface of the connecting plate, and the top surface of the connecting plate is also equipped with a positioning pin for cooperating with the through hole of the middle bridge rear cover.

6. The mid-bridge rear cover clamp according to claim 5, characterized in that: The top surface of the bracket is provided with multiple ball head screws, and the connecting plate is supported by the multiple ball head screws. There are three clamping slides, and the three clamping slides are distributed in a ring matrix. The top surface of each clamping slide is downwardly recessed with a mounting groove, and each mounting groove is slidably connected to a clamping claw.

Images