Positioning tool for processing POM plate
By introducing a movable positioning structure and moving components into the positioning fixture, the problem that existing positioning fixtures cannot adapt to POM boards of different sizes is solved, achieving flexible four-way positioning and simple operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN TENGYI PLASTIC PANEL CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-07-07
AI Technical Summary
Existing positioning fixtures cannot meet the positioning requirements of POM boards of different sizes, have limited applicability, and are complex to operate.
A positioning fixture comprising a positioning platform, a fixed positioning structure, and a movable positioning structure was designed. By setting a matrix of threaded holes and fixing blocks on the positioning platform, combined with the moving components of the movable frame and the positioning arm, four-way positioning of the POM board can be achieved, adapting to POM boards of different sizes.
It enables flexible positioning of POM boards of different sizes, has a wide range of applications, is easy to operate, and improves the applicability of positioning fixtures.
Smart Images

Figure CN224464807U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of POM board production and processing technology, and in particular to a positioning fixture for POM board processing. Background Technology
[0002] POM sheets, or polyoxymethylene sheets, are a high-performance engineering plastic widely used in precision machinery, electronics, and automotive manufacturing due to their excellent mechanical strength, wear resistance, self-lubricating properties, and dimensional stability. In industrial applications, POM sheets often require machining processes such as milling, drilling, and grooving to create specific functional structures, such as involute teeth for precision gears, irregularly shaped positioning holes for bearing housings, complex curved surface profiles for instruments, and multi-angle assembly slots for connecting components.
[0003] For rectangular POM (Polymer Oxide) boards, positioning fixtures are required during processing. Currently, the positioning fixtures used include an operating table with several threaded holes arranged in a rectangular array. Two L-shaped positioning blocks are fixed to the operating table with screws to position the POM board. However, POM comes in various sizes, and the threaded holes in the rectangular array have gaps, making it impossible to meet the positioning requirements for different sizes. Utility Model Content
[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this patent application is how to provide a positioning fixture for POM board processing that can be adapted to different sizes of POM boards, has a wide range of applications, and is easy to operate.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] A positioning fixture for processing POM boards includes a positioning table, a fixed positioning structure, and a movable positioning structure. The positioning table has a plurality of threaded holes arranged in a matrix. The fixed positioning structure includes a fixing block, which has two vertically arranged positioning parts. A support with through holes is fixed to the outer side of each positioning part. A fixing screw passes through the through holes of the support and connects to the threaded holes to fix the fixing block onto the positioning table. The movable positioning structure includes a movable frame, which is T-shaped. One end of the movable frame is fixedly mounted on the positioning table, and the other end is connected to a positioning arm via a moving component. The movable frame and the positioning arm are vertically arranged.
[0007] Thus, both the positioning platform and the fixed positioning structure are currently used positioning structures for POM (Polymer Oxide) positioning. The positioning platform has several screw holes arranged in a matrix. The fixing block is fixedly installed on the positioning platform by fixing positioning screws, forming an end positioning reference for positioning rectangular block-shaped POM boards. When positioning the POM board, the movable frame is fixedly installed on the positioning platform, with one end of the movable frame in contact with the POM board. Then, the positioning arm is moved by the moving component, so that the positioning arm is in contact with the other side of the POM board. Utilizing the two positioning parts of the fixed block, as well as the movable frame and positioning arm, positioning of the POM board in four directions is achieved, which can accommodate the clamping and positioning of POM boards of different sizes.
[0008] Preferably, the movable frame is provided with a slot, and a sealing plate is fixed on the bottom surface of the movable frame opposite to the slot. An elongated hole is provided on the sealing plate, and an adjusting screw passes through the elongated hole and connects to the screw hole to press the sealing plate.
[0009] Preferably, the movable component includes a screw, the movable frame is provided with a movable groove, the screw passes through the movable groove and is connected to the movable frame through a bearing, one end of the screw passes through the movable frame and is connected to a knob, a nut block is threaded onto the screw, the two sides of the nut block are slidably fitted with the movable groove, a connecting plate is fixedly installed on the upper end of the nut block, and the connecting plate is fixedly connected to the positioning arm.
[0010] Preferably, the movable positioning structure further includes two auxiliary blocks, which are symmetrically arranged on both sides of the movable frame. The auxiliary blocks are fixedly installed on the positioning platform by auxiliary screws, and the surfaces of the two auxiliary blocks facing each other slide against the movable frame.
[0011] Preferably, the auxiliary block is T-shaped.
[0012] In summary, this positioning fixture for POM board processing has the advantages of being able to adapt to the positioning of POM boards of different sizes, having a wide range of applications, and being easy to operate. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the positioning fixture for processing POM board according to the present invention.
[0014] Figure 2 for Figure 1 Enlarged schematic diagram of the fixed positioning structure.
[0015] Figure 3 for Figure 1 An enlarged schematic diagram of the active positioning structure. Detailed Implementation
[0016] The present invention will now be described in further detail with reference to the accompanying drawings. In the description of the present invention, it should be understood that directional terms such as "upper," "lower," "top," and "bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of the present invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0017] like Figure 1-3 As shown, a positioning fixture for processing POM boards includes a positioning table 1, a fixed positioning structure 2, and a movable positioning structure 3. The positioning table is provided with a plurality of threaded holes 4 arranged in a matrix. The fixed positioning structure includes a fixing block 5, which includes two vertically arranged positioning parts. A support 6 with through holes is fixed to the outside of the positioning parts. A fixing positioning screw 7 passes through the through holes of the support and is connected to the threaded holes to fix the fixing block on the positioning table. The movable positioning structure includes a movable frame 8, which is T-shaped. One end of the movable frame is fixedly installed on the positioning table, and the other end of the movable frame is connected to a positioning arm 9 through a moving component. The movable frame and the positioning arm are arranged vertically.
[0018] Thus, both the positioning platform and the fixed positioning structure are currently used positioning structures for POM (Polymer Oxide) positioning. The positioning platform has several screw holes arranged in a matrix. The fixing block is fixedly installed on the positioning platform by fixing positioning screws, forming an end positioning reference for positioning rectangular block-shaped POM boards. When positioning the POM board, the movable frame is fixedly installed on the positioning platform, with one end of the movable frame in contact with the POM board. Then, the positioning arm is moved by the moving component, so that the positioning arm is in contact with the other side of the POM board. Utilizing the two positioning parts of the fixed block, as well as the movable frame and positioning arm, positioning of the POM board in four directions is achieved, which can accommodate the clamping and positioning of POM boards of different sizes.
[0019] In implementation, the movable frame has a slot, and a sealing plate 10 is fixed to the bottom surface of the movable frame opposite the slot. An elongated hole 11 is formed on the sealing plate, and an adjusting screw 12 passes through the elongated hole and connects to the screw hole, thus tightening the sealing plate. When the movable frame is installed on the positioning platform, it is placed in its approximate position on the platform. The adjusting screw passes through the elongated hole of the sealing plate and connects to the screw hole, but is not locked. The movable frame is then moved until it is pressed against the POM board, and the adjusting screw is used to lock the movable frame, thus fixing it to the positioning platform.
[0020] In implementation, the movable component includes a screw 13. A movable slot is provided on the movable frame. The screw passes through the movable slot and is connected to the movable frame via a bearing. One end of the screw passes through the movable frame and is connected to a knob 14. A nut block 15 is threaded onto the screw. The two sides of the nut block slide against the movable slot. A connecting plate 16 is fixedly installed on the upper end of the nut block, and the connecting plate is fixedly connected to a positioning arm. One end of the positioning arm slides against the movable frame. When adjusting the position of the positioning arm, rotating the knob moves the screw. The movable slot limits the movement of the nut block on both sides. The movement of the nut block moves the positioning arm, achieving positioning of the POM board in another direction. The positioning arm is perpendicular to the movable frame, forming an L-shaped positioning structure.
[0021] In implementation, the movable positioning structure further includes two auxiliary blocks 17, which are symmetrically arranged on both sides of the movable frame. The auxiliary blocks are fixedly mounted on the positioning platform using auxiliary screws 18, and the surfaces of the two auxiliary blocks facing each other slide against the movable frame. The auxiliary blocks, fixed to the positioning platform with auxiliary screws and sliding against the movable frame, are used to position the movable frame when it moves to contact the POM board, preventing tilting and improving the positioning effect.
[0022] In practice, the auxiliary block is arranged in a T-shape. This increases the contact area with the movable frame and improves the positioning effect of the movable frame.
[0023] Finally, it should be noted that those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A positioning fixture for processing POM boards, characterized in that, The system includes a positioning platform (1), a fixed positioning structure (2), and a movable positioning structure (3); the positioning platform is provided with a plurality of threaded holes (4) arranged in a matrix; the fixed positioning structure includes a fixing block (5), the fixing block includes two vertically arranged positioning parts, and a support (6) with a through hole is fixed on the outside of the positioning part. The fixing positioning screw (7) passes through the through hole of the support and is connected to the threaded hole to fix the fixing block on the positioning platform; the movable positioning structure includes a movable frame (8), the movable frame is T-shaped, one end of the movable frame is fixedly installed on the positioning platform, and the other end of the movable frame is connected to the positioning arm (9) through a moving component. The movable frame and the positioning arm are arranged vertically.
2. The positioning fixture for processing POM board according to claim 1, characterized in that, The movable frame is provided with a slot, and a sealing plate (10) is fixed on the bottom surface of the movable frame opposite the slot. An elongated hole (11) is opened on the sealing plate, and an adjusting screw (12) passes through the elongated hole and connects with the screw hole. The adjusting screw presses the sealing plate.
3. The positioning fixture for processing POM board according to claim 2, characterized in that, The movable component includes a screw (13), and the movable frame is provided with a movable groove. The screw passes through the movable groove and is connected to the movable frame through a bearing. One end of the screw passes through the movable frame and is connected to a knob (14). A nut block (15) is threaded onto the screw. The two sides of the nut block slide against the movable groove. A connecting plate (16) is fixedly installed on the upper end of the nut block. The connecting plate is fixedly connected to the positioning arm.
4. The positioning fixture for processing POM board according to claim 3, characterized in that, The movable positioning structure also includes two auxiliary blocks (17), which are symmetrically arranged on both sides of the movable frame. The auxiliary blocks are fixedly installed on the positioning platform by auxiliary screws, and the surfaces of the two auxiliary blocks facing each other slide against the movable frame.
5. A positioning fixture for processing POM boards according to claim 4, characterized in that, The auxiliary block is arranged in a T-shape.