Clamp for mobile phone rear cover film coating
By designing components such as the positioning box, sliding plate, and constraint column of the positioning fixture, the problem of positional displacement during the coating process of mobile phone back cover was solved, thereby improving the uniformity and quality of the coating.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN CHUANGYI OPTOELECTRONICS CO LTD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-05-05
AI Technical Summary
Existing mobile phone back cover coating fixtures are not easy to position, causing positional shifts during the coating process, which affects coating uniformity and quality.
The device employs a positioning fixture design, which includes components such as a positioning box, a sliding plate, a constraint groove, a constraint post, and a guide roller. The sliding plate and the constraint post work together to achieve stable clamping and positioning of the phone's back cover.
It effectively solves the problem of positional displacement of the phone back cover during the coating process, ensuring the uniformity and quality of the coating.
Smart Images

Figure CN224195010U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of clamping technology, and relates to mobile phone back covers, specifically a clamping device for coating mobile phone back covers. Background Technology
[0002] A mobile phone back cover coating fixture is an auxiliary device specifically designed to fix and support the back cover during the coating process. Its main function is to ensure the stability of the back cover during the coating operation, preventing degradation of coating quality due to movement or vibration. This fixture is typically precision-designed to achieve optimal fit and support. Furthermore, the fixture material must possess good corrosion resistance and mechanical strength to withstand the high temperatures, high pressures, and chemical environments that may occur during the coating process. Using a professional back cover coating fixture not only improves production efficiency but also effectively ensures the surface quality and consistency of the product, making it an indispensable tool in modern mobile phone manufacturing processes.
[0003] However, some existing clamps for coating mobile phone back covers are not convenient for positioning the back cover during use, which may cause the back cover to shift during the coating process, thus affecting the uniformity and quality of the coating. Therefore, this problem needs to be solved. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a fixture for coating mobile phone back covers. The technical problem to be solved by this utility model is that it is not convenient to position the mobile phone back cover, which may cause the back cover to shift during the coating process, thus affecting the uniformity and quality of the coating.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A fixture for coating a mobile phone back cover includes an operating table. A positioning box is fixedly connected to the top of the operating table. Two sliding plates are symmetrically slidably connected inside the positioning box. Two constraint grooves are symmetrically opened on the top of each of the two sliding plates. Constraint columns are slidably connected inside each of the two constraint grooves. Guide rollers are fixedly connected to the top of each of the two constraint columns. Positioning clamps are fixedly connected to the bottom of each of the two constraint columns. Guide grooves are opened on the top of the positioning box near the four guide rollers. The four guide rollers are slidably connected to one side of the guide grooves. A moving mechanism for moving the positioning clamps is provided on one side of each of the two sliding plates. A nozzle is provided on the top of the positioning box. An adjustment mechanism for adjusting the nozzle is provided on the top of the operating table. A first motor is fixedly connected to one side of the operating table. The output shaft of the first motor is provided with a conveying mechanism for conveying the mobile phone back cover. The positioning clamps can be used to position the mobile phone back cover.
[0007] As a further embodiment of this utility model, the moving mechanism includes a second lead screw, which is rotatably connected to one side of the positioning box. The slide plate is slidably sleeved on the surface of the second lead screw. A lead screw nut is provided inside the slide plate near the second lead screw, and the lead screw nut and the second lead screw are mutually engaged. A gear is fixedly sleeved on one end of the second lead screw, and a rack is engaged on the surface of the gear. The slide plate can be moved by the setting of the second lead screw.
[0008] As a further embodiment of this utility model, the adjusting mechanism includes a gantry frame, which is fixedly connected to the top of the operating table. Two hydraulic rods are fixedly connected to the top of the gantry frame, and the bottom of the two hydraulic rods is fixedly connected to the same support frame. Both racks are fixedly connected to one side of the support frame. A first lead screw is rotatably connected to one side of the support frame. A second motor is fixedly connected to one end of the first lead screw, and the second motor is fixedly connected to one side of the support frame. A slider is slidably sleeved on the surface of the first lead screw, and the slider and the first lead screw are mutually coordinated. A connecting pipe is fixedly connected to the top of the slider, and the nozzle is fixedly connected to the bottom of the connecting pipe. The nozzle can be raised and lowered by the hydraulic rods.
[0009] As a further embodiment of this utility model, the conveying mechanism includes two rollers, both of which are rotatably connected to one side of the operating table. The same conveyor belt is fitted onto the surface of the two rollers, and one of the rollers is fixedly connected to the first motor.
[0010] The beneficial effects of this utility model are as follows:
[0011] 1. This utility model employs a positioning clamp to hold the back cover of a mobile phone, thus effectively solving the problem of inconvenient positioning of the back cover, which could lead to positional displacement during the coating process, affecting the uniformity and quality of the coating. Two constraint grooves are symmetrically formed at the top of each of the two sliding plates, each containing a constraint post. A positioning clamp is installed at the bottom of each constraint post. When the two sliding plates move laterally closer together, the positioning clamp also moves laterally closer together, thus clamping and fixing the back cover of the mobile phone. A guide roller is installed at the top of the constraint post, and the guide roller cooperates with the guide groove at the top of the positioning box. Due to the shape of the guide groove, the positioning clamp can also move longitudinally while moving laterally, ensuring that the positioning clamp can both clamp and fix the back cover of the mobile phone and position it simultaneously. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of a clamp for coating a mobile phone back cover according to the present invention.
[0013] Figure 2This is a schematic diagram of the conveying mechanism of a clamp for coating a mobile phone back cover according to the present invention;
[0014] Figure 3 This is a schematic diagram of the adjustment mechanism of a clamp for coating a mobile phone back cover according to the present invention.
[0015] Figure 4 This is a schematic diagram of the moving mechanism of a clamp for coating a mobile phone back cover according to the present invention.
[0016] Figure 5 for Figure 4 A magnified structural diagram at point A in the diagram.
[0017] In the diagram: 1. Control panel; 2. Gantry frame; 3. Positioning box; 101. Roller; 102. Conveyor belt; 103. First motor; 201. Hydraulic rod; 202. Support frame; 203. First lead screw; 204. Slider; 205. Connecting pipe; 206. Nozzle; 207. Second motor; 301. Guide groove; 302. Slide plate; 303. Second lead screw; 304. Lead screw nut; 305. Gear; 306. Rack; 307. Constraint groove; 308. Constraint column; 309. Positioning clamp; 310. Guide roller. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0019] Reference Figure 1 - Figure 5 A fixture for coating a mobile phone back cover includes an operating table 1. A positioning box 3 is fixedly connected to the top of the operating table 1. Two sliding plates 302 are symmetrically slidably connected inside the positioning box 3. Two constraint grooves 307 are symmetrically opened on the top of each of the two sliding plates 302. Constraint posts 308 are slidably connected inside each of the two constraint grooves 307. Guide rollers 310 are fixedly connected to the top of each of the two constraint posts 308. Positioning clamps 309 are fixedly connected to the bottom of each of the two constraint posts 308. Guide grooves 301 are opened on the top of the side of the positioning box 3 closest to the four guide rollers 310. The guide groove 301 can constrain the positioning clamp 309. The four guide rollers 310 are all slidably connected to one side of the guide groove 301. The two slide plates 302 are each provided with a moving mechanism for moving the positioning clamp 309. The top of the positioning box 3 is provided with a nozzle 206. The top of the operating table 1 is provided with an adjustment mechanism for adjusting the nozzle 206. The first motor 103 is fixedly connected to one side of the operating table 1. The output shaft of the first motor 103 is provided with a conveying mechanism for conveying the back cover of the mobile phone. The positioning clamp 309 can be used to position the back cover of the mobile phone.
[0020] Preferably, the moving mechanism includes a second lead screw 303, which is rotatably connected to one side of the positioning box 3. A sliding plate 302 is slidably sleeved on the surface of the second lead screw 303. A lead screw nut 304 is provided inside the sliding plate 302 near the second lead screw 303, and the lead screw nut 304 and the second lead screw 303 are mutually engaged. A gear 305 is fixedly sleeved on one end of the second lead screw 303. The second lead screw 303 can be rotated by the gear 305. A rack 306 is engaged on the surface of the gear 305. The sliding plate 302 can be moved by the second lead screw 303.
[0021] Preferably, the adjustment mechanism includes a gantry frame 2, which is fixedly connected to the top of the operating table 1. Two hydraulic rods 201 are fixedly connected to the top of the gantry frame 2, and the same support frame 202 is fixedly connected to the bottom of the two hydraulic rods 201. Two racks 306 are fixedly connected to one side of the support frame 202. A first lead screw 203 is rotatably connected to one side of the support frame 202. A second motor 207 is fixedly connected to one end of the first lead screw 203. The second motor 207 is fixedly connected to one side of the support frame 202. A slider 204 is slidably sleeved on the surface of the first lead screw 203, and the slider 204 and the first lead screw 203 are configured to cooperate with each other. A connecting pipe 205 is fixedly connected to the top of the slider 204. The nozzle 206 can be moved by the slider 204. The nozzle 206 is fixedly connected to the bottom of the connecting pipe 205. The nozzle 206 can be raised and lowered by the hydraulic rods 201.
[0022] Preferably, the conveying mechanism includes two rollers 101, both rollers 101 are rotatably connected to one side of the operating table 1, the same conveyor belt 102 is sleeved on the surface of the two rollers 101, and one of the rollers 101 is fixedly connected to the first motor 103.
[0023] Working Principle: During operation, the phone back cover is transported via conveyor belt 102. Once the back cover reaches the designated position, hydraulic rod 201 is activated. A nozzle 206 is installed at the bottom of hydraulic rod 201. When the nozzle 206 descends to a certain height, it applies a coating to the phone back cover. Two racks 306 are also installed at the bottom of hydraulic rod 201, each with a gear 305 fitted on its surface. When hydraulic rod 201 moves the racks 306 downwards, the gears 305 rotate synchronously. A second lead screw 303 is installed on one side of the gear 305. A sliding plate 302 fits onto the surface of the second lead screw 303, and the sliding plate 302 engages with the second lead screw 303 via a lead screw nut 304. Therefore, when the second lead screw 303... When rotating, the slide plate 302 can move. Two constraint grooves 307 are symmetrically opened on the top of the two slide plates 302. Constraint posts 308 are installed inside the two constraint grooves 307, and positioning clips 309 are installed at the bottom of the two constraint posts 308. So when the two slide plates 302 move laterally closer to each other, the positioning clips 309 will also move laterally closer, thereby clamping and fixing the back cover of the mobile phone. A guide roller 310 is installed on the top of the constraint post 308, and the guide roller 310 cooperates with the guide groove 301 on the top of the positioning box 3. Due to the shape of the guide groove 301, when the positioning clip 309 moves laterally, it can also move longitudinally, thereby ensuring that the positioning clip 309 can clamp and fix the back cover of the mobile phone while positioning it.
[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A fixture for coating a mobile phone back cover, comprising an operating table (1), characterized in that, The top of the operating table (1) is fixedly connected to a positioning box (3). Two sliding plates (302) are symmetrically slidably connected inside the positioning box (3). Each of the two sliding plates (302) has two symmetrically formed constraint grooves (307) on its top. Each of the two constraint grooves (307) has a constraint post (308) slidably connected inside. Each of the two constraint posts (308) has a guide roller (310) fixedly connected to its top. Each of the two constraint posts (308) has a positioning clamp (309) fixedly connected to its bottom. The positioning box (3) is located near the four guide rollers (310). The top of each side of the device is provided with a guide groove (301), and the four guide rollers (310) are slidably connected to one side of the guide groove (301). The two slide plates (302) are provided with a moving mechanism for moving the positioning clamp (309) on one side. The top of the positioning box (3) is provided with a nozzle (206). The top of the operating table (1) is provided with an adjustment mechanism for adjusting the nozzle (206). The first motor (103) is fixedly connected to one side of the operating table (1). The output shaft of the first motor (103) is provided with a conveying mechanism for conveying the back cover of the mobile phone.
2. The fixture for coating a mobile phone back cover according to claim 1, characterized in that, The moving mechanism includes a second lead screw (303), which is rotatably connected to one side of the positioning box (3). The sliding plate (302) is slidably sleeved on the surface of the second lead screw (303), and a lead screw nut (304) is provided inside the sliding plate (302) on the side near the second lead screw (303).
3. The fixture for coating a mobile phone back cover according to claim 2, characterized in that, Furthermore, the lead screw nut (304) and the second lead screw (303) are configured to cooperate with each other. A gear (305) is fixedly sleeved on one end of the second lead screw (303), and a rack (306) is fitted on the surface of the gear (305).
4. The fixture for coating a mobile phone back cover according to claim 3, characterized in that, The adjustment mechanism includes a gantry frame (2), which is fixedly connected to the top of the operating table (1). Two hydraulic rods (201) are fixedly connected to the top of the gantry frame (2). The bottom of the two hydraulic rods (201) is fixedly connected to the same support frame (202). Two racks (306) are fixedly connected to one side of the support frame (202). A first lead screw (203) is rotatably connected to one side of the support frame (202). A second motor (207) is fixedly connected to one end of the first lead screw (203).
5. The fixture for coating a mobile phone back cover according to claim 4, characterized in that, The second motor (207) is fixedly connected to one side of the support frame (202). The first lead screw (203) is slidably fitted with a slider (204), and the slider (204) and the first lead screw (203) are configured to cooperate with each other. The top of the slider (204) is fixedly connected to a connecting pipe (205), and the nozzle (206) is fixedly connected to the bottom of the connecting pipe (205).
6. The fixture for coating a mobile phone back cover according to claim 1, characterized in that, The conveying mechanism includes two rollers (101), both rollers (101) are rotatably connected to one side of the operating table (1), and the same conveyor belt (102) is sleeved on the surface of the two rollers (101), and one of the rollers (101) is fixedly connected to the first motor (103).