Door cover jig convenient to position
By using a sliding clamping device and a synchronous positioning device, along with a gear and rack mechanism and a cylinder drive mechanism, the problem of inconvenient door cover positioning was solved, enabling rapid positioning and unlocking, and improving processing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DACHUAN PLASTIC IND (KUNSHAN) CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-05-15
AI Technical Summary
Existing technology cannot quickly locate and pre-align the front and rear and right sides of the door cover, and is inconvenient to clamp and unlock.
The device employs a sliding clamping device and a synchronous positioning device, and uses a gear and rack mechanism to achieve rapid positioning of the door cover in the front, back and right directions. Combined with a cylinder drive mechanism and an elastic limit component, it enables rapid clamping and unlocking of the door cover.
It enables rapid positioning and pre-alignment of the front and rear and right sides of the door cover, improving processing efficiency and reducing the frequency of fixture disassembly.
Smart Images

Figure CN224239313U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of positioning fixture technology, specifically a door cover fixture that facilitates positioning. Background Technology
[0002] A door cover fixture is a device used to clamp door covers. After the plastic door cover of the equipment is injection molded, it needs to be processed and assembled. A positioning fixture is needed to position and fix it to facilitate subsequent processing and assembly. After the fixture fixes the door cover, processing or assembly is carried out. If it is found that the door cover is placed incorrectly, the fixture needs to be removed, the door cover needs to be repositioned, and the fixture needs to be reassembled. Therefore, a foolproof fixture is needed to fix the door cover, avoid frequent disassembly of the fixture, and indirectly improve processing efficiency.
[0003] Chinese patent CN221792433U discloses a user-friendly positioning fixture, comprising a fixture body. A fixing block is fixedly connected to the upper right side of the fixture body, and a rubber pad is fixedly connected to the inner surface of the fixing block. Adjustment mechanisms are provided on the left and rear sides of the fixture body. The adjustment mechanisms include a moving unit and a mounting and fixing unit. The moving unit includes a slide groove, a slider, a rectangular block, a screw hole, a limiting hole, a fixing plate, a lead screw, a limiting rod, and a motor. The slide groove is formed through the top left and rear sides of the fixture body. The outer surface of the slider is slidably connected to the inner surface of the slide groove. The rectangular block is fixedly connected to the bottom of the slider. The screw hole is formed through the middle of the rectangular block. Two limiting holes are provided and formed through the two sides of the rectangular block. Two fixing plates are provided and fixedly connected to the two ends of the limiting rod respectively. The top of the fixing plate is fixedly connected to the bottom of the fixture body, so that the slider slides inside the slide groove by the movement of the rectangular block.
[0004] However, the technical solution of this patent has the following problems:
[0005] This patent cannot quickly locate and pre-align the front, back, and right sides of the door cover, nor can it quickly clamp and unlock the door cover.
[0006] Therefore, those skilled in the art have provided a door cover fixture that is easy to position in order to solve the above problems. Utility Model Content
[0007] The purpose of this utility model is to provide a door cover fixture that is easy to position, so as to solve the problems mentioned in the background art.
[0008] To achieve the above objectives, this utility model provides the following technical solution:
[0009] A door cover fixture for easy positioning includes a frame, and further includes a sliding clamping device and a synchronous positioning device. The sliding clamping device is mounted on the upper side of the frame, and the synchronous positioning device is mounted on the sliding clamping device. The synchronous positioning device includes an upper plate, a sliding rod, front and rear positioning plates, a support spring, and a right side positioning plate. The upper plate is fixedly mounted on the upper side of the sliding clamping device. Two sliding rods are slidably connected to the front and rear side walls and the left and right side walls of the upper plate. A support spring is fixedly mounted on the end of each sliding rod near the upper plate. The end of the support spring away from the sliding rod is fixedly connected to the upper plate. The two front and rear positioning plates are respectively fixedly mounted on the ends of the sliding rods on the front and rear side walls of the upper plate away from the upper plate. The right side positioning plate is fixedly mounted on the right side of the sliding rod on the right side wall of the upper plate. The synchronous positioning device further includes a synchronous component, which is mounted on the lower side of the upper plate.
[0010] Furthermore, the synchronization component includes: a gear, a first fixing block, and a first rack. The gear is rotatably connected to the middle side of the upper plate via a rotating shaft. The two first fixing blocks are respectively fixedly installed on the front and rear sides of the lower part of the upper plate. The middle side of the first rack is slidably connected to the first fixing block. The end of the first rack away from the first fixing block is fixedly installed on the lower side of the front and rear positioning plates via a bracket. The first rack and the gear mesh with each other.
[0011] Furthermore, the synchronization component also includes a right-side linkage component, which is installed on the lower side of the right-side positioning plate;
[0012] Furthermore, the right-side linkage component includes: a second fixing block and a second rack. The second fixing block is fixedly installed on the lower right side of the upper plate, and the second rack is slidably connected to the second fixing block. The end of the second rack away from the second fixing block is fixedly connected to the lower side of the right-side positioning plate, and the second rack and the gear mesh with each other.
[0013] Furthermore, the sliding clamping device includes: a guide rail, a slider, a lower plate, a heightening block, and a left positioning plate. Two guide rails are fixedly installed on the upper side of the frame, the slider is slidably connected to the guide rails, the lower plate is fixedly installed on the end of the slider away from the guide rails, multiple heightening blocks are fixedly installed on the upper side of the lower plate, the left positioning plate is fixedly installed on the left side of the sliding rod on the left side wall of the upper plate, two positioning blocks are fixedly installed on the left positioning plate, and the upper plate is fixedly installed on the upper side of the heightening block of the sliding clamping device.
[0014] Furthermore, the sliding clamping device also includes a drive mechanism, which is mounted on the frame;
[0015] Furthermore, the drive mechanism includes a cylinder and a C-shaped plate, wherein the cylinder is fixedly mounted on the right side of the frame, and the C-shaped plate is fixedly mounted on the lower side of the right positioning plate;
[0016] Furthermore, the drive mechanism also includes an elastic limiting component, which is installed on the left side of the frame. The elastic limiting component includes a gas spring and a vertical bracket. One end of the gas spring is fixedly installed on the upper side of the frame, and the other end of the gas spring is fixedly installed on the lower side of the lower plate. The vertical bracket is fixedly installed on the left side of the frame.
[0017] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model uses the leftward movement of the right positioning plate to drive the second rack to move to the left, the leftward movement of the second rack to drive the gear to rotate, the rotation of the gear to drive the first rack to move towards the center of the upper plate, the movement of the first rack towards the center of the upper plate to drive the two front and rear positioning plates to move towards the center of the upper plate, the movement of the front and rear positioning plates towards the center of the upper plate to drive the sliding rod to move towards the center of the upper plate, and the synchronous movement of the right positioning plate and the front and rear positioning plates to facilitate the rapid positioning and pre-alignment of the front and rear and right sides of the door cover;
[0018] 2. The cylinder output end of the sliding clamping device extends, causing the C-shaped plate to move to the left. The leftward movement of the C-shaped plate causes the right positioning plate of the synchronous positioning device to move to the left, so that the front and rear positioning plates and the right positioning plate of the synchronous positioning device move synchronously to quickly limit and pre-align the front and rear and right sides of the door cover. The cylinder output end continues to move to the left, causing the right positioning plate to continue to move to the left, causing the left positioning plate to move to the left. The left positioning plate contacts the vertical support, causing the left positioning plate to stop moving. At this time, the upper plate continues to move to the left, causing the support spring at the sliding rod position of the left positioning plate to be compressed and undergo elastic deformation. The two positioning blocks on the left positioning plate perform anti-foolproof positioning of the door cover, which is conducive to quick positioning, clamping and unlocking of the door cover. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a front view of the present utility model;
[0021] Figure 3 This is a top view of the present invention;
[0022] Figure 4 For along Figure 3 Sectional view along the AA direction;
[0023] Figure 5 This is a partial structural schematic diagram of the synchronous positioning device of this utility model.
[0024] In the diagram: 1. Frame; 2. Sliding clamping device; 21. Guide rail; 22. Slider; 23. Lower plate; 24. Heightening block; 25. Left positioning plate; 26. Cylinder; 27. C-shaped plate; 28. Gas spring; 29. Vertical support; 210. Positioning block; 3. Synchronous positioning device; 31. Upper plate; 32. Sliding rod; 33. Front and rear positioning plates; 34. Support spring; 35. Right positioning plate; 36. Gear; 37. First fixing block; 38. First rack; 39. Second fixing block; 310. Second rack. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.
[0027] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-5 A door cover fixture for easy positioning includes a frame 1, and further includes a sliding clamping device 2 and a synchronous positioning device 3. The sliding clamping device 2 is mounted on the upper side of the frame 1, and the synchronous positioning device 3 is mounted on the sliding clamping device 2. The synchronous positioning device 3 includes an upper plate 31, sliding rods 32, front and rear positioning plates 33, a support spring 34, and a right side positioning plate 35. The upper plate 31 is fixedly mounted on the upper side of the sliding clamping device 2, and two sliding rods are slidably connected to the front and rear side walls and the left and right side walls of the upper plate 31. 32. Each sliding rod 32 is fixedly installed with a support spring 34 at one end near the upper plate 31. The end of the support spring 34 away from the sliding rod 32 is fixedly connected to the upper plate 31. The two front and rear positioning plates 33 are respectively fixedly installed on the front and rear side walls of the upper plate 31 at the ends of the sliding rods 32 away from the upper plate 31. The right positioning plate 35 is fixedly installed on the right side of the sliding rod 32 on the right side wall of the upper plate 31. The synchronous positioning device 3 further includes a synchronous component, which is installed on the lower side of the upper plate 31.
[0028] The sliding clamping device 2 is used to clamp the door cover in the left and right directions, and the synchronous positioning device 3 is used for positioning in the front, back and right directions.
[0029] The synchronization component includes a gear 36, a first fixing block 37, and a first rack 38. The gear 36 is rotatably connected to the middle side of the upper plate 31 via a rotating shaft. The two first fixing blocks 37 are respectively fixedly installed on the front and rear sides of the lower part of the upper plate 31. The middle side of the first rack 38 is slidably connected to the first fixing block 37. The end of the first rack 38 away from the first fixing block 37 is fixedly installed on the lower side of the front and rear positioning plates 33 via a bracket. The first rack 38 and the gear 36 mesh with each other. The first fixing block 37 limits the forward and backward movement of the first rack 38.
[0030] The synchronization component also includes a right-side linkage component, which is installed on the lower side of the right-side positioning plate 35.
[0031] The right-side linkage component includes a second fixing block 39 and a second rack 310. The second fixing block 39 is fixedly installed on the lower right side of the upper plate 31. The second rack 310 is slidably connected to the second fixing block 39. One end of the second rack 310 away from the second fixing block 39 is fixedly connected to the lower side of the right-side positioning plate 35. The second rack 310 and the gear 36 mesh with each other. The second fixing block 39 limits the left and right movement of the second rack 310.
[0032] The door cover is placed on the upper plate 31. The right positioning plate 35 of the synchronous positioning device 3 moves to the left. The leftward movement of the right positioning plate 35 drives the sliding rod 32 to move to the left, causing the support spring 34 to undergo elastic deformation and be compressed. The leftward movement of the right positioning plate 35 drives the second rack 310 to move to the left. The leftward movement of the second rack 310 drives the gear 36 to rotate. The rotation of the gear 36 drives the first rack 38 to move towards the center of the upper plate 31. The movement of the first rack 38 towards the center of the upper plate 31 drives the two front and rear positioning plates 33 to move towards the center of the upper plate 31. The movement of the front and rear positioning plates 33 towards the center of the upper plate 31 drives the sliding rod 32 to move towards the center of the upper plate 31, causing the support spring 34 to undergo elastic deformation and be compressed. The right positioning plate 35 and the front and rear positioning plates 33 move synchronously, quickly positioning and pre-aligning the front and rear and right sides of the door cover.
[0033] Example 2: In some embodiments, such as Figures 1-5In a preferred embodiment of this utility model, the sliding clamping device 2 includes: a guide rail 21, a slider 22, a lower plate 23, a heightening block 24, and a left positioning plate 25. Two guide rails 21 are fixedly installed on the upper side of the frame 1. The slider 22 is slidably connected to the guide rail 21. The lower plate 23 is fixedly installed on the end of the slider 22 away from the guide rail 21. Multiple heightening blocks 24 are fixedly installed on the upper side of the lower plate 23. The left positioning plate 25 is fixedly installed on the left side of the sliding rod 32 on the left side wall of the upper plate 31. Two positioning blocks 210 are fixedly installed on the left positioning plate 25. The upper plate 31 is fixedly installed on the upper side of the heightening block 24 of the sliding clamping device 2. The guide rail 21 and the slider 22 are used to limit the left and right movement of the lower plate 23.
[0034] The sliding clamping device 2 further includes a drive mechanism, which is mounted on the frame 1.
[0035] The drive mechanism includes a cylinder 26 and a C-shaped plate 27. The cylinder 26 is fixedly installed on the right side of the frame 1, and the C-shaped plate 27 is fixedly installed on the lower side of the right side positioning plate 35.
[0036] The driving mechanism further includes an elastic limiting component, which is installed on the left side of the frame 1. The elastic limiting component includes a gas spring 28 and a vertical bracket 29. One end of the gas spring 28 is fixedly installed on the upper side of the frame 1, and the other end of the gas spring 28 is fixedly installed on the lower side of the lower plate 23. The vertical bracket 29 is fixedly installed on the left side of the frame 1.
[0037] The cylinder 26 of the driving mechanism of the sliding clamping device 2 extends, causing the C-shaped plate 27 to move to the left. The leftward movement of the C-shaped plate 27 causes the right-side positioning plate 35 of the synchronous positioning device 3 to move to the left, so that the front and rear positioning plates 33 and the right-side positioning plate 35 of the synchronous positioning device 3 move synchronously to quickly limit and pre-align the front and rear and right-side positions of the door cover. The cylinder 26 continues to move to the left, causing the right-side positioning plate 35 to continue to move to the left. The right-side positioning plate 35 continues to move to the left, causing the upper plate 31 to continue to move to the left. The upper plate 31 continues to move to the left, causing the raising block 24 to continue to move to the left. Moving to the left, the heightening block 24 continues to move to the left, causing the lower plate 23 to continue moving to the left. The lower plate 23 continues to move to the left, causing the gas spring 28 to undergo elastic deformation and be compressed. The upper plate 31 continues to move to the left, causing the left positioning plate 25 to move to the left. The left positioning plate 25 moves to the left and contacts the vertical bracket 29, causing the left positioning plate 25 to stop moving. At this time, the upper plate 31 continues to move to the left, causing the support spring 34 at the sliding rod 32 position of the left positioning plate 25 to be compressed and undergo elastic deformation. The two positioning blocks 210 on the left positioning plate 25 perform anti-foolproof positioning of the door cover.
[0038] A pressure sensor is installed at one end of the positioning block 210 near the center of the upper plate 31. Both the pressure sensor and the cylinder 26 are connected to an external controller. The external controller can be an AP series PLC programmable controller produced by Xiamen Yudian Automation Technology Co., Ltd. The pressure sensor detects the data to determine the pressure between the positioning block 210 and the door cover. If the pressure is within the preset range, the door cover is placed correctly. If the pressure exceeds the preset range, the door cover is installed incorrectly. At this time, the controller controls the cylinder 26 to stop extending, restores the cylinder 26, and adjusts the position of the door cover.
[0039] The output end of cylinder 26 returns to its original position, and the compressed support spring 34 returns to its original position, pushing the front and rear positioning plates 33, the left positioning plate 25 and the right positioning plate 35 back to their initial positions.
[0040] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A door cover fixture for easy positioning, comprising a frame (1), characterized in that, Also includes: A sliding clamping device (2) and a synchronous positioning device (3) are provided. The sliding clamping device (2) is mounted on the upper side of the frame (1), and the synchronous positioning device (3) is mounted on the sliding clamping device (2). The synchronous positioning device (3) includes: an upper plate (31), sliding rods (32), front and rear positioning plates (33), a support spring (34), and a right side positioning plate (35). The upper plate (31) is fixedly mounted on the upper side of the sliding clamping device (2). Two sliding rods (32) are slidably connected to the front and rear side walls and the left and right side walls of the upper plate (31). Each sliding rod (32) 32) A support spring (34) is fixedly installed at one end near the upper plate (31). The end of the support spring (34) away from the sliding rod (32) is fixedly connected to the upper plate (31). The two front and rear positioning plates (33) are respectively fixedly installed at the ends of the sliding rod (32) away from the upper plate (31) on the front and rear side walls of the upper plate (31). The right positioning plate (35) is fixedly installed on the right side of the sliding rod (32) on the right side wall of the upper plate (31). The synchronous positioning device (3) also includes a synchronous component, which is installed on the lower side of the upper plate (31).
2. The door cover fixture for easy positioning according to claim 1, characterized in that, The synchronization component includes a gear (36), a first fixing block (37), and a first rack (38). The gear (36) is rotatably connected to the middle side of the upper plate (31) via a rotating shaft. The two first fixing blocks (37) are respectively fixedly installed on the front and rear sides of the lower part of the upper plate (31). The middle side of the first rack (38) is slidably connected to the first fixing block (37). The end of the first rack (38) away from the first fixing block (37) is fixedly installed on the lower side of the front and rear positioning plates (33) via a bracket. The first rack (38) and the gear (36) mesh with each other.
3. The door cover fixture for easy positioning according to claim 2, characterized in that, The synchronization component further includes a right-side linkage component, which is installed on the underside of the right-side positioning plate (35).
4. The door cover fixture for easy positioning according to claim 3, characterized in that, The right-side linkage component includes: a second fixing block (39) and a second rack (310). The second fixing block (39) is fixedly installed on the lower right side of the upper plate (31). The second rack (310) is slidably connected to the second fixing block (39). One end of the second rack (310) away from the second fixing block (39) is fixedly connected to the lower side of the right-side positioning plate (35). The second rack (310) and the gear (36) mesh with each other.
5. The door cover fixture for easy positioning according to claim 4, characterized in that, The sliding clamping device (2) includes: a guide rail (21), a slider (22), a lower plate (23), a heightening block (24), and a left positioning plate (25). Two guide rails (21) are fixedly installed on the upper side of the frame (1). The slider (22) is slidably connected to the guide rail (21). The lower plate (23) is fixedly installed at the end of the slider (22) away from the guide rail (21). Multiple heightening blocks (24) are fixedly installed on the upper side of the lower plate (23). The left positioning plate (25) is fixedly installed on the left side of the sliding rod (32) on the left side wall of the upper plate (31). Two positioning blocks (210) are fixedly installed on the left positioning plate (25). The upper plate (31) is fixedly installed on the upper side of the heightening block (24) of the sliding clamping device (2).
6. The door cover fixture for easy positioning according to claim 5, characterized in that, The sliding clamping device (2) further includes a drive mechanism, which is mounted on the frame (1).
7. The door cover fixture for easy positioning according to claim 6, characterized in that, The drive mechanism includes a cylinder (26) and a C-shaped plate (27). The cylinder (26) is fixedly installed on the right side of the frame (1), and the C-shaped plate (27) is fixedly installed on the lower side of the right-side positioning plate (35).
8. The door cover fixture for easy positioning according to claim 7, characterized in that, The drive mechanism further includes an elastic limiting component, which is installed on the left side of the frame (1).