Cam adjusting device

Abstract

The utility model relates to a cam adjusting device which comprises a fixed frame and a movable plate, the fixed frame is provided with a sliding groove used for allowing the movable plate to slide, and the side face of the movable plate is attached to the side face of the sliding groove; an adjusting hole is formed in the side face, facing the fixed frame, of the movable plate, the fixed frame is provided with a rotating hole corresponding to the adjusting hole, a rotating component is installed at the rotating hole, and the rotating component comprises an adjusting cam arranged in the adjusting hole and a rotating head rotationally arranged at the rotating hole. The device has the effects of improving the adjusting precision of the displacement amount of the movable plate and improving the working efficiency.

Description

Technical Field

[0001] This application relates to the field of mechanical adjustment, and more particularly to a cam adjustment device. Background Technology

[0002] An adjustment locking mechanism is a mechanical design used to fix or lock a mechanism after it has been adjusted to the desired position, preventing accidental movement or loosening. This structure is widely used in various mechanical devices that require precise adjustment and position maintenance.

[0003] In related technologies, the adjustment and locking structure typically uses an external screw to adjust the movable plate, and then locks the movable plate onto the fixed plate after adjustment. Specifically, a strip-shaped hole is provided on the surface of the fixed plate along the moving direction of the movable plate to allow the movable plate to slide. A locking through hole is provided on the surface of the movable plate, and a locking screw that matches the strip-shaped hole is provided at the locking through hole. When using the above adjustment and locking structure to adjust the position of the movable plate on the fixed plate, the locking screw can be loosened first, allowing the movable plate to move to the appropriate position along the length of the strip-shaped hole, and then the locking screw can be tightened to achieve the adjustment of the position of the movable plate on the fixed plate.

[0004] Regarding the aforementioned technologies, the inventors believe that the adjustment and locking structure described above has low precision in adjusting the displacement of the movable plate and low working efficiency. Utility Model Content

[0005] In order to improve the adjustment accuracy and efficiency of the movable plate displacement, this application provides a cam adjustment device.

[0006] The cam adjustment device provided in this application adopts the following technical solution:

[0007] A cam adjustment device includes a fixed frame and a movable plate. The fixed frame has a sliding groove for sliding the movable plate, and the side of the movable plate is in contact with the sliding groove. The movable plate has an adjustment hole on its side facing the fixed frame. The fixed frame has a rotation hole corresponding to the adjustment hole, and a rotating component is installed at the rotation hole. The rotating component includes an adjustment cam arranged in the adjustment hole and a rotating head arranged at the rotation hole.

[0008] By adopting the above technical solution, when adjusting the relative position of the movable plate, the operator can move the movable plate to a suitable position by rotating the rotating component; the adjusting hole and the rotating hole are arranged correspondingly, the adjusting cam of the rotating component is located in the adjusting hole, and the rotating head is arranged at the rotating hole, so that rotating the rotating head can drive the adjusting cam to rotate, which helps to achieve precise adjustment of the position of the movable plate and has high adjustment efficiency.

[0009] Optionally, the adjustment hole is a blind hole structure, and the side of the adjustment cam facing away from the rotating head is in contact with the inner bottom surface of the adjustment hole.

[0010] By adopting the above technical solution, the blind hole structure of the adjustment hole prevents the rotating component from coming off one side of the movable plate, ensuring the stability and reliability of the adjustment process; by setting the side of the adjustment cam facing away from the rotating head to fit against the inner bottom surface of the adjustment hole, the movement of the adjustment cam has a certain guiding effect, so that the adjustment cam can be smoothly adjusted within the adjustment hole.

[0011] Optionally, the maximum adjustment radius of the adjusting cam is greater than the radius of the rotating head.

[0012] By adopting the above technical solution, the maximum adjustment radius of the adjusting cam is greater than the radius of the rotating head, which helps to reduce the risk of the rotating component coming off the rotating hole.

[0013] Optionally, the end face of the rotating head does not exceed the end face of the rotating hole, and a first tool groove is provided at the end of the rotating head.

[0014] By adopting the above technical solution, the length of the rotating head is not greater than the length of the rotating hole, which can reduce the impact of the protruding bolt head on the overall layout of the device or interference with other components; the setting of the first tool slot makes it convenient for the operator to use the corresponding tool to rotate the rotating head, thereby driving the adjustment cam to rotate to adjust the movable plate, which helps to achieve precise adjustment of the position of the movable plate.

[0015] Optionally, the end face of the rotating head is provided with positioning lines, and the fixing bracket is provided with marking scales on the outer circumferential side of the rotating hole.

[0016] By adopting the above technical solution, the setting of positioning lines and marking scales allows operators to more accurately and intuitively control the rotation angle of the rotating head within the rotating hole, which helps to improve the adjustment accuracy of the moving plate position.

[0017] Optionally, a locking structure for locking the movable plate is provided between the movable plate and the fixed frame.

[0018] By adopting the above technical solution, a locking structure is set between the movable plate and the fixed frame. First, the locking structure is unlocked so that the movable plate can slide smoothly into the sliding groove of the fixed frame. After the movable plate is adjusted, it is locked by the locking structure to fix the movable plate in the adjusted position, which helps to reduce the risk of displacement during subsequent use.

[0019] Optionally, the locking structure includes a locking bolt threaded into the movable plate near the fixed frame and a locking countersunk hole formed in the fixed frame for the locking bolt to slide. The locking countersunk hole is a strip-shaped countersunk hole arranged parallel to the sliding direction of the movable plate. The locking countersunk hole includes a first strip-shaped hole and a second strip-shaped hole along the installation direction of the locking bolt.

[0020] By adopting the above technical solution, a locking bolt is installed on the side of the movable plate near the fixed frame to match the strip-shaped locking countersunk hole on the fixed frame. This allows the locking bolt to move within the locking countersunk hole when the movable plate slides, which helps to adjust the position of the movable plate. The locking countersunk hole is divided into a first strip-shaped hole and a second strip-shaped hole, which helps to properly place the locking bolt and also helps the movable plate to remain stable during sliding, making it convenient to lock and unlock the movable plate.

[0021] Optionally, the length of the bolt head of the locking bolt is less than the depth of the first strip hole, and the end face of the bolt head of the locking bolt is also provided with a second tool groove.

[0022] By adopting the above technical solution, the bolt head length of the locking bolt is less than the depth of the first strip hole, which can reduce the impact of the bolt head protrusion on the overall layout of the device or interference with other components; the setting of the second tool slot makes it convenient for operators to use the corresponding tools to loosen or tighten the locking bolt, thereby realizing the locking or unlocking of the movable plate, which helps to flexibly adjust the position of the movable plate and securely lock it.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. A cam adjustment device, comprising a fixed frame, a movable plate, and a rotating component; when adjusting the relative position of the movable plate, the operator can move the movable plate to a suitable position by rotating the rotating component; the adjustment hole and the rotating hole are arranged correspondingly, the adjustment cam of the rotating component is located in the adjustment hole, and the rotating head is rotatably arranged at the rotating hole, so that rotating the rotating head can drive the adjustment cam to rotate, which helps to achieve precise adjustment of the position of the movable plate, and is simple and convenient to operate with high work efficiency;

[0025] 2. By setting a first tool slot in the rotating head, it is convenient for the operator to use the corresponding tool to rotate the rotating head, thereby driving the adjusting cam to rotate to adjust the movable plate, which helps to achieve precise adjustment of the position of the movable plate;

[0026] 3. By setting positioning lines on the rotating head and corresponding marking scales on the fixed frame, operators can more conveniently, accurately, and intuitively control the rotation angle of the rotating head within the rotating hole, which helps to further improve the adjustment accuracy of the movable plate position. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the cam adjustment device in this embodiment.

[0028] Figure 2 This is a cross-sectional view of the movable plate locked to the fixed frame in this embodiment.

[0029] Figure 3 This is a schematic diagram of a rotating component using a traditional cam structure in this embodiment.

[0030] Figure 4 This is a schematic diagram of the rotating component using an eccentric wheel structure in this embodiment.

[0031] Figure 5 This is a schematic diagram of the first tool slot and the second tool slot in this embodiment.

[0032] Explanation of reference numerals in the attached drawings: 1. Fixed frame; 11. Sliding groove; 12. Rotating hole; 13. Marking scale; 2. Movable plate; 21. Adjustment hole; 22. Mounting through hole; 3. Rotating component; 31. Rotating head; 311. First tool slot; 312. Positioning line; 32. Adjusting cam; 4. Locking structure; 41. Locking bolt; 411. Bolt head; 4111. Second tool slot; 412. Locking screw; 42. Locking countersunk hole; 421. First strip hole; 422. Second strip hole. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0034] This application discloses a cam adjustment device. (Refer to...) Figure 1 and Figure 2 The cam adjustment device includes a fixed frame 1, a movable plate 2, a rotating component 3 for adjusting the position of the movable plate 2, and a locking structure 4 for locking the movable plate 2. The fixed frame 1 has a sliding groove 11 for sliding the movable plate 2, and the side of the movable plate 2 is in contact with the side of the sliding groove 11. In this embodiment, the fixed frame 1 is an inner shuttle frame, and the movable plate 2 is a pin guard adjustment plate. The movable plate 2 has an arc-shaped structure, and the sliding groove 11 is an arc-shaped groove with its inner wall in contact with the movable plate 2. The thickness of the movable plate 2 is greater than the depth of the sliding groove 11.

[0035] Reference Figure 2The rotating component 3 includes a rotating head 31 and an adjusting cam 32 connected to the end of the rotating head 31. The movable plate 2 has an adjusting hole 21 on its side facing the fixed frame 1 for arranging the adjusting cam 32. The adjusting hole 21 is a blind hole structure, and the side of the adjusting cam 32 facing away from the rotating head 31 is in contact with the inner bottom surface of the adjusting hole 21, making it less likely for the adjusting cam 32 to disengage from the adjusting hole 21 while better pushing the movable plate 2 to move along the length direction of the sliding groove 11. The fixed frame 1 has a rotating hole 12 corresponding to the adjusting hole 21 and for arranging the rotating head 31. The maximum adjusting radius of the adjusting cam 32 is set larger than the radius of the rotating head 31, so that the rotating component 3 will not disengage from the rotating hole 12. The end face of the rotating head 31 does not exceed the end face of the rotating hole 12. In this embodiment, the rotating head 31 and the rotating hole 12 are in clearance fit, allowing the rotating head 31 to rotate freely within the rotating hole 12.

[0036] Reference Figure 3 and Figure 4 The adjusting cam 32 can be a traditional cam structure or an eccentric wheel structure. By using either a traditional cam structure or an eccentric wheel structure in conjunction with the adjusting hole 21, the position of the movable plate 2 can be adjusted along the length of the sliding groove 11.

[0037] Reference Figure 2 and Figure 5 The rotating head 31 has a first tool slot 311 at its end. In this embodiment, the first tool slot 311 is an internal hexagonal slot. Due to the high structural compactness of the cam adjustment device and the small overall size of the rotating component 3, the space of the rotating head 31 is limited. The internal hexagonal slot has a high torque transmission capacity and good spatial adaptability. Therefore, using an internal hexagonal first tool slot 311 can effectively reduce the risk of tool or slot deformation, and at the same time, it will not be exposed and interfere with the winding of the fixing frame 1.

[0038] Reference Figure 2 and Figure 5 The rotating head 31 has a positioning line 312 on its end face, and the fixing bracket 1 has a marking scale 13 on the outer edge of the rotating hole 12. In this embodiment, to accommodate more sizes of needles, the adjustment range of the movable plate 2 is 0 to 36 microns. The maximum adjustment angle of the rotating head 31 is 180°. When the adjustment angle of the rotating head 31 is 0°, the relative height of the movable plate 2 is 0 microns, and the minimum radius end of the adjusting cam 32 abuts against the top of the side wall of the adjusting hole 21; when the adjustment angle of the rotating head 31 is 180°, the relative height of the movable plate 2 is 36 microns, and the maximum radius end of the adjusting cam 32 abuts against the top of the side wall of the adjusting hole 21.

[0039] Reference Figure 1 and Figure 2A locking structure 4 is disposed between the movable plate 2 and the fixed frame 1. The locking structure 4 includes a locking bolt 41 threaded into the movable plate 2 near the fixed frame 1 and a locking countersunk hole 42 formed in the fixed frame 1 for sliding of the locking bolt 41. The locking bolt 41 includes a bolt head 411 and a locking screw 412 connected to the end of the bolt head 411. A through hole 22 for threaded installation of the locking screw 412 is formed on the surface of the movable plate 2. The locking countersunk hole 42 includes a first slotted hole 421 and a second slotted hole 422 along the installation direction of the locking bolt 41. The length of the bolt head 411 of the locking bolt 41 is less than the depth of the first slotted hole 421, so that when the locking bolt 41 locks the movable plate 2 to the movable plate 2, the bolt head 411 is not exposed outside the movable plate 2.

[0040] Reference Figure 5 The bolt head 411 of the locking bolt 41 is also provided with a second tool groove 4111 on its end face, which facilitates the operator to use appropriate tools to lock and unlock the locking bolt 41. In this embodiment, the second tool groove 4111 is also an internal hexagonal groove.

[0041] The implementation principle of the cam adjustment device in this application embodiment is as follows: When adjusting the relative position of the movable plate 2, the operator first unlocks the locking structure 4, so that the movable plate 2 can slide smoothly against the sliding groove 11 of the fixed frame 1. Then, the movable plate 2 is moved to the appropriate position by rotating the rotating component 3. Finally, the locking structure 4 is locked, thus realizing the adjustment and locking of the position of the movable plate 2. The rotating component 3 adopts the cam adjustment method. By rotating the rotating head 31, the adjusting cam 32 is driven to rotate, so that the scale line at the rotating head 31 is aligned with the mark scale 13 at the fixed frame 1, which can adjust the movable plate 2 to the corresponding position, thereby realizing the precise adjustment of the movable plate 2.

[0042] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cam adjustment device, characterized in that, The device includes a fixed frame (1) and a movable plate (2). The fixed frame (1) has a sliding groove (11) for sliding the movable plate (2), and the side of the movable plate (2) is in contact with the sliding groove (11). The movable plate (2) has an adjustment hole (21) on the side facing the fixed frame (1). The fixed frame (1) has a rotating hole (12) arranged corresponding to the adjustment hole (21), and a rotating component (3) is installed at the rotating hole (12). The rotating component (3) includes an adjustment cam (32) arranged in the adjustment hole (21) and a rotating head (31) arranged at the rotating hole (12).

2. The cam adjustment device according to claim 1, characterized in that, The adjustment hole (21) is a blind hole structure, and the side of the adjustment cam (32) facing away from the rotating head (31) is in contact with the inner bottom surface of the adjustment hole (21).

3. The cam adjustment device according to claim 2, characterized in that, The maximum adjustment radius of the adjusting cam (32) is greater than the radius of the rotating head (31).

4. The cam adjustment device according to claim 1, characterized in that, The end face of the rotating head (31) does not exceed the end face of the rotating hole (12), and the end of the rotating head (31) is provided with a first tool groove (311).

5. A cam adjusting device according to claim 4, characterized in that, The end face of the rotating head (31) is provided with a positioning line (312), and the fixing frame (1) is provided with a marking scale (13) on the outer circumferential side of the rotating hole (12).

6. The cam adjustment device according to claim 1, characterized in that, A locking structure (4) for locking the movable plate (2) is provided between the movable plate (2) and the fixed frame (1).

7. A cam adjusting device according to claim 6, characterized in that, The locking structure (4) includes a locking bolt (41) threaded onto the movable plate (2) near the fixed frame (1) and a locking countersunk hole (42) opened in the fixed frame (1) for the locking bolt (41) to slide. The locking countersunk hole (42) is a strip-shaped countersunk hole arranged parallel to the sliding direction of the movable plate (2). The locking countersunk hole (42) includes a first strip-shaped hole (421) and a second strip-shaped hole (422) along the installation direction of the locking bolt (41).

8. A cam adjusting device according to claim 7, characterized in that, The length of the bolt head (411) of the locking bolt (41) is less than the depth of the first strip hole (421), and the end face of the bolt head (411) of the locking bolt (41) is also provided with a second tool groove (4111).

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