A plastic shell frame detection jig
By designing a plastic shell frame inspection fixture with a jig plate, limiting components, and pressing components, the problem of unstable positioning of the frame during inspection was solved, resulting in higher inspection accuracy and product yield.
Patent Information
- Application Number
- CN202522388663.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-11
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-11-11
AI Technical Summary
In existing technologies, the plastic shell frame may shift or warp during inspection due to insufficient positioning, resulting in low reliability of inspection results and difficulty in controlling product yield.
A fixture for inspecting plastic shell frames has been designed, including a fixture plate, a limiting component, and a pressing component. The frame is positioned by the slots of the inner and outer clamping plates, and the pressing component is used to elastically press the frame to prevent it from shifting during the inspection process.
It effectively prevents the plastic shell frame from shifting due to vibration or inertia during the testing process, improving the accuracy and reliability of the test results and increasing the product yield.
Smart Images

Figure CN224939829U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of jigs, specifically relating to a jig for detecting the frame of a plastic shell. Background Technology
[0002] Plastic casing bezels refer to product casings made of plastic materials, commonly used in electronics, home furnishings, and toys. Precision plastic casing bezels for laptops are an important component of laptops, and their manufacturing precision directly affects the overall assembly quality and appearance of the machine.
[0003] In existing technologies, the size and appearance of such frames are often inspected by placing them directly on a testing platform. Because plastic materials have a certain degree of elasticity and the frame structure is typically lightweight, they lack effective constraint on the testing platform. They are prone to displacement or warping when slightly touched by the testing equipment or due to their own inertia, resulting in low reliability of test results and difficulty in controlling product yield. Utility Model Content
[0004] This utility model provides a fixture for inspecting plastic shell frames, which solves the problem that when inspecting plastic shell frames, insufficient positioning can cause product displacement or warping, resulting in low reliability of inspection results and difficulty in controlling product yield.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a fixture for detecting the frame of a plastic shell, comprising:
[0006] jig board;
[0007] A limiting component, the limiting component including an inner clamping plate integrally connected to the top of the jig plate, an outer clamping plate integrally connected to the top of the jig plate and located around the inner clamping plate, and a slot formed between the inner clamping plate and the outer clamping plate, the slot being used to place a plastic outer shell frame;
[0008] A pressing assembly is disposed on the top of the outer card plate for elastically pressing onto the top of the plastic housing frame.
[0009] Optimally, the pressing assembly includes an adjusting rod height-adjustable mounted on the top of the outer clamping plate, a pressure block rotatably sleeved on the adjusting rod, and a spring disposed between the adjusting rod and the pressure block.
[0010] Optimally, the adjusting rod includes a screw rod height-adjustable mounted on the top of the outer clamping plate and a pressure cap integrally connected to the top of the screw rod, with the spring sleeved on the screw rod and located between the pressure cap and the pressure block.
[0011] Optimally, the pressing block includes a first pressing block sleeved on the screw, an extension plate integrally connected to one side of the first pressing block, and a second pressing block integrally connected to the bottom of the extension plate, the second pressing block being pressed against the top of the plastic shell frame.
[0012] Optimally, the limiting component further includes an outer clamping groove formed on the top of the outer clamping plate, an inner clamping groove formed on the outside of the inner clamping plate and cooperating with the outer clamping groove, and a clearance groove formed between two adjacent sets of outer clamping plates.
[0013] Ideally, it also includes a threaded hole on the top of the outer card plate, in which the screw is screwed.
[0014] Optimally, the adjusting rod also includes a wrench groove formed on the top of the pressure cap.
[0015] Optimally, the pressure block further includes a protrusion integrally connected to the top of the second pressure block and a reinforcing rib integrally connected between the extension plate and the protrusion.
[0016] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:
[0017] This utility model relates to a fixture for inspecting plastic shell frames. It features an inner and outer clamping plate that cooperate with each other. The plastic shell frame is placed within the groove formed by the inner and outer clamping plates for positioning. Then, a pressing assembly presses the frame onto the top, effectively preventing the product from jumping out of the groove due to vibration or inertia. During inspection, it counteracts external forces, eliminating any micro-displacement of the product. The cooperation between the limiting and pressing components eliminates inspection errors caused by inaccurate product positioning or movement, improving the accuracy and reliability of the inspection results. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the structure of this utility model after the product has been removed;
[0020] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;
[0021] Figure 4 This utility model Figure 3 A sectional view;
[0022] Explanation of reference numerals in the attached figures:
[0023] 1. Fixture plate; 2. Inner clamping plate; 3. Outer clamping plate; 4. Clamping groove; 5. Clearance groove; 6. Inner clamping groove; 7. Outer clamping groove; 8. Threaded hole; 9. Screw; 10. Pressure cap; 11. Wrench groove; 12. First pressure block; 13. Extension plate; 14. Second pressure block; 15. Protruding post; 16. Reinforcing rib; 17. Spring; 18. Frame; 19. Fastening strip. Detailed Implementation
[0024] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.
[0025] like Figure 1 , 2 The diagram shows the structure of the fixture for inspecting the plastic shell frame of this utility model. The fixture plate 1 is a rectangular plate, mainly serving a supporting function. The inner clamping plate 2 is integrally connected to the top of the fixture plate 1, as shown. Figure 1 As shown, when the plastic outer shell frame 18 is placed on the fixture plate 1, the inner side wall of the plastic outer shell frame 18 abuts against the outer side wall of the inner clamping plate 2, and the inner clamping plate 2 internally positions the placed plastic outer shell frame 18.
[0026] There are four outer clamping plates 3, which are integrally connected to the top of the fixture plate 1 and are located on the outer sides of the four sides of the inner clamping plate 2. A clamping groove 4 is formed between the outer clamping plates 3 and the inner clamping plates 2, such as... Figure 1 As shown, when the plastic outer shell frame 18 is placed on the fixture plate 1, the inner sidewall of the plastic outer shell frame 18 abuts against the outer sidewall of the inner clamping plate 2, and the outer sidewall of the plastic outer shell frame 18 abuts against the inner sidewall of the outer clamping plate 3. Through the cooperation of the inner clamping plate 2 and the four sets of outer clamping plates 3, the positioning of the plastic outer shell frame 18 is completed, and the plastic outer shell frame 18 is prevented from shifting during subsequent testing.
[0027] like Figure 1 , 2 As shown, the length of the outer clamping plate 3 is less than the side length of the fixture plate 1, so a clearance groove 5 is formed between two adjacent sets of vertically arranged outer clamping plates 3. When the plastic outer shell frame 18 is placed in the clamping groove 4 on the fixture plate 1, all four right angles of the plastic outer shell frame 18 are located in the clearance groove 5 to avoid the right angle parts of the plastic outer shell frame 18, thus preventing bumps and wear at the right angle parts when the outer shell frame 18 is picked up or put down.
[0028] The outer clamping groove 7 is located at the top of the outer clamping plate 3 and is positioned at the center of the outer clamping plate 3. The inner clamping groove 4 is located on the outside of the inner clamping plate 2 and cooperates with the outer clamping groove 7. When placing the plastic outer shell frame 18, the operator pinches the frame 18 with their thumb and forefinger together and then places it on the fixture plate 1. The outer clamping groove 7 and the inner clamping groove 6 are used to accommodate the operator's forefinger and thumb, facilitating the insertion of the plastic outer shell frame 18. At the same time, when removing the plastic outer shell frame 18, the operator places their thumb and forefinger into the inner clamping groove 6 and the outer clamping groove 7, facilitating removal.
[0029] like Figure 1 , 2 As shown, since the outer clamping groove 7 is located at the center of the outer clamping plate 3, when removing the plastic outer shell frame 18, the operator can remove the plastic outer shell frame 18 from the middle position upwards, which will result in more even force distribution and reduce the deformation of the plastic outer shell frame 18. If the operator removes the plastic outer shell frame 18 from the diagonally opposite clearance groove 5, the plastic outer shell frame 18 will be subjected to uneven force and is prone to deformation or even breakage.
[0030] The pressing assembly is located on top of the outer clamping plate 3. After the plastic housing frame 18 is placed in the slot 4 on the fixture plate 1, the operator presses the pressing assembly onto the retaining strip 19 at the top of the plastic housing frame 18 to prevent the frame 18 from jumping out of the slot 4 during inspection (the retaining strip 19 at the top of the plastic housing frame 18 cooperates with the retaining slot of the electronic product for assembling the frame). Figure 3 , 4 As shown, the pressing assembly includes a threaded hole 8, a screw 9, a pressure cap 10, a wrench groove 11, a first pressing block 12, an extension plate 13, a second pressing block 14, a protruding post 15, a reinforcing rib 16, and a spring 17. At least two sets of pressing assemblies are spaced apart on the top of each set of outer clamping plates 3 to improve the stability of pressing.
[0031] The threaded hole 8 is vertically opened on the top of the outer clamping plate 3. The screw 9 is screwed into the threaded hole 8. In actual use, the operator can adjust the depth of screw 9 into the threaded hole 8 according to personal operating habits and the stability of the plastic shell frame 18 pressing, thereby adjusting the deformation of the spring 17 and adjusting the pressing pressure.
[0032] The pressure cap 10 is integrally connected to the top of the screw 9. The spring 17, which is sleeved on the screw 9, abuts against the lower surface of the pressure cap 10. The pressure cap 10 presses against the spring 17. A wrench groove 11 is formed on the top of the pressure cap 10. During actual adjustment, the operator can select a wrench that is compatible with the wrench groove 11 to tighten the screw 9.
[0033] The first pressure block 12 is fitted onto the screw 9, and the spring 17 is located between the first pressure block 12 and the pressure cap 10. The force of the spring 17 acts on the first pressure block 12, thereby elastically pressing it against the buckle 19 of the plastic shell frame 18, completing the pressing of the frame 18. At the same time, the elastically applied pressure can prevent dents from being pressed into the top of the frame 18 (specifically, the first pressure block 12 has a through hole in the vertical direction, and the diameter of the through hole is larger than the outer diameter of the screw 9, ensuring that the movement of the screw 9 and the first pressure block 12 do not affect each other).
[0034] The extension plate 13 is integrally connected to one side of the first pressure block 12, and the second pressure block 14 is integrally connected to the bottom of the extension plate 13 on the side away from the first pressure block 12. During pressing, the second pressure block 14 presses against the top of the fastener 19 of the plastic shell frame 18. The protruding post 15 is integrally connected to the top of the extension plate 13. The protruding post 15 facilitates the operator to rotate the extension plate 13 and the second pressure block 14. The reinforcing rib 16 is connected between the extension plate 13 and the protruding post 15 to improve the structural strength of the protruding post 15.
[0035] When using this utility model fixture for inspecting plastic shell frames, the plastic shell frame 18 is placed on the fixture plate 1. At this time, the inner sidewall of the plastic shell frame 18 abuts against the outer sidewall of the inner clamping plate 2, and the outer sidewall of the plastic shell frame 18 abuts against the inner sidewall of the outer clamping plate 3. Through the cooperation of the inner clamping plate 2 and the four sets of outer clamping plates 3, the positioning of the plastic shell frame 18 is completed. Then, the operator holds the protrusion 15, lifts the extension plate 13 and the second pressure block 14 upward, and then rotates the protrusion 15 until the second pressure block 14 is rotated to the buckle 19 of the plastic shell frame 18. The protrusion 15 is then released. At this time, under the action of the spring 17, the second pressure block 14 presses on the top of the buckle 19 of the plastic shell frame 18, completing the positioning of the frame 18. Finally, the operator puts the frame 18 together with the fixture into the inspection mechanism for inspection.
[0036] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.
Claims
1. A fixture for inspecting the frame of a plastic shell, characterized in that, It includes: Jig board(1); The limiting component includes an inner clamping plate (2) integrally connected to the top of the jig plate (1), an outer clamping plate (3) integrally connected to the top of the jig plate (1) and located around the inner clamping plate (2), and a slot (4) formed between the inner clamping plate (2) and the outer clamping plate (3), the slot (4) being used to place the plastic outer shell frame. A pressing assembly is disposed on the top of the outer card plate (3) for elastically pressing onto the top of the plastic housing frame.
2. The fixture for detecting the frame of a plastic shell according to claim 1, characterized in that: The pressing assembly includes an adjusting rod that is height-adjustably mounted on the top of the outer clamping plate (3), a pressure block that is rotatably sleeved on the adjusting rod, and a spring (17) disposed between the adjusting rod and the pressure block.
3. The fixture for detecting the frame of a plastic shell according to claim 2, characterized in that: The adjusting rod includes a screw (9) that is height-adjustably mounted on the top of the outer clamping plate (3) and a pressure cap (10) integrally connected to the top of the screw (9). The spring (17) is sleeved on the screw (9) and located between the pressure cap (10) and the pressure block.
4. The fixture for detecting the frame of a plastic shell according to claim 3, characterized in that: The pressure block includes a first pressure block (12) sleeved on the screw (9), an extension plate (13) integrally connected to one side of the first pressure block (12), and a second pressure block (14) integrally connected to the bottom of the extension plate (13). The second pressure block (14) is pressed against the top of the plastic shell frame.
5. The fixture for detecting the frame of a plastic shell according to claim 1, characterized in that: The limiting component also includes an outer clamping groove (7) formed on the top of the outer clamping plate (3), an inner clamping groove (6) formed on the outside of the inner clamping plate (2) and cooperating with the outer clamping groove (7), and a clearance groove (5) formed between two adjacent sets of outer clamping plates (3).
6. The fixture for detecting the frame of a plastic shell according to claim 3, characterized in that: It also includes a threaded hole (8) on the top of the outer card plate (3), and the screw (9) is screwed into the threaded hole (8).
7. The fixture for detecting the frame of a plastic shell according to claim 3, characterized in that: The adjusting rod also includes a wrench groove (11) formed on the top of the pressure cap (10).
8. The fixture for detecting the frame of a plastic shell according to claim 4, characterized in that: The pressure block also includes a protrusion (15) integrally connected to the top of the second pressure block (14) and a reinforcing rib (16) integrally connected between the extension plate (13) and the protrusion (15).
