Polishing clamp for engineering plastic round bar

By designing an electric push rod driven pushing mechanism and adjustment mechanism, flexible clamping and flipping adjustment of the bar material is realized, solving the problem of inconvenient bar material grinding in the existing technology and improving grinding efficiency and effect.

CN223834273UActive Publication Date: 2026-01-27SHANGHAI ZHEHAO MATERIAL APPL CO LTD
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Patent Information

Application Number
CN202520329558.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Priority Date
2024-10-12
Filing Date
2025-02-27
Publication Date
2026-01-27
Estimated Expiration
2035-02-27

AI Technical Summary

Technical Problem

The existing bar grinding equipment cannot perform bar rotation and adjustment grinding, which makes it inconvenient to use.

Method used

A grinding fixture for engineering plastic round bars was designed. It adopts an electric push rod driven pushing mechanism, displacement mechanism and adjustment mechanism to realize the clamping, flipping and flexible adjustment of support points of the bar. Through three-point support limit and 180-degree flipping, the stability and integrity of the grinding process are ensured.

Benefits of technology

It enables flexible clamping and flipping adjustment of the bar stock, ensuring the stability and integrity of the grinding process, adapting to bars of different diameters, and improving grinding efficiency and effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a polishing clamp for engineering plastic round bars, which is used for bar polishing equipment and comprises a clamp body, the clamp body comprises a base, a movable frame is movably mounted on the base, a lifting mechanism is fixed on the movable frame, a supporting plate is fixed on the lifting mechanism, a fixing seat is welded on the base, and a clamping plate is fixed on the fixing seat. A fixing seat is fixed on the base, a clamping assembly is movably installed on the fixing seat, a pushing mechanism is fixed on the base, a supporting column is installed on the pushing mechanism, a displacement mechanism is fixed on the supporting column, a movable column is installed on the displacement mechanism, and the movable column is movably installed on the clamping assembly. The adjusting mechanism pushes the movable frame to move, the moving of the movable frame changes the supporting position of the supporting plate on the bar, the position of a supporting point is adjusted according to the length of the bar, the plastic bar has flexibility, the bar is kept parallel and perpendicular through supporting of the supporting plate, and the surface of the bar is polished.
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Description

Technical Field

[0001] This utility model relates to the field of grinding fixture equipment, specifically a grinding fixture for engineering plastic round bars. Background Technology

[0002] Plastic rods are needed in engineering construction. Plastic round rods are a common type of plastic product, having a solid, cylindrical shape. Plastic rods are typically made from various plastic resins, including polyethylene, polypropylene, polyvinyl chloride, and polystyrene. Each plastic has different properties and applications. It is important to note that plastic rods require clamping and polishing before use.

[0003] Referring to a bar grinding device disclosed in Chinese Patent Publication No. CN116728178B, it includes a first bracket mounted on a horizontal plane, a support mechanism mounted on the upper surface of the first bracket to support and rotate the titanium rod, a second bracket radially mounted on one side of the support mechanism, and multiple rollers rotatably connected to the bottom of the second bracket to drive the second bracket to move axially along the titanium rod. A grinding mechanism is mounted inside the second bracket, which can press against the titanium rod and grind it to generate a back force, and can also detach from the titanium rod. An intermittent mechanism is mounted above the second bracket. In use, the intermittent mechanism uses the back force to not only unlock the locking block, but also drive the slide bar to rise, thereby enabling the grinding wheel to detach from the titanium rod using the back force inevitably generated during part processing. This structure has good innovation. However, although this solution achieves the detachment of the rod, it cannot rotate and adjust the rod during grinding, which is inconvenient in use. Utility Model Content

[0004] In order to solve the problem that a bar grinding device disclosed in Chinese Patent No. CN116728178B cannot rotate and adjust the bar during grinding, this application provides a grinding fixture for engineering plastic round bars.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a grinding fixture for engineering plastic round bars, used in bar grinding equipment, comprising a fixture body, the fixture body including a base, a movable frame movably mounted on the base, a lifting mechanism fixed on the movable frame, a support plate fixed on the lifting mechanism, a fixed seat welded to the base, a clamping assembly movably mounted on the fixed seat, a pushing mechanism fixed on the base, a support column mounted on the pushing mechanism, a displacement mechanism fixed on the support column, a movable column mounted on the displacement mechanism, and the movable column movably mounted on the clamping assembly.

[0006] With the above technical solution, both the pushing mechanism and the displacement mechanism are electric push rods. The electric push rods push the extrusion plate to move, and the movement of the extrusion plate clamps and fixes bars of different diameters.

[0007] Furthermore, an adjustment mechanism is fixedly installed inside the base, with one end of the adjustment mechanism fixed to the movable frame.

[0008] The above technical solution uses an electric push rod as the adjustment mechanism. The electric push rod moves the movable frame, and the movement of the movable frame changes the position of the support plate supporting the bar. The position of the support point is adjusted according to the length of the bar.

[0009] Furthermore, a protrusion is welded to the bottom inner wall of the movable frame, and a slot is opened at the bottom of the base, with the protrusion movably installed inside the slot.

[0010] With the above technical solution, the movable frame moves inside the slot through the protrusion, and the movement provides horizontal moving force for the movable frame, avoiding the deviation caused by the movable frame shaking when moving.

[0011] Furthermore, the clamping assembly includes a ring seat, a rubber seat is fixed inside the ring seat, and openings are made on both the rubber seat and the ring seat. A limit post is welded onto the fixed seat, and the limit post is movably installed inside the opening.

[0012] With the above technical solution, after the limiting post is installed inside the opening, on the one hand, the limiting post limits and fixes the clamping component, and on the other hand, the limiting post pushes the bar between the extrusion plates to move upward. The bar achieves three-point support and limitation under the push of the extrusion plate and the limiting post.

[0013] Furthermore, a pressing plate is installed at one end of the movable column, and the pressing plate is mounted on the movable column via a bearing seat.

[0014] Through the above technical solution, the extrusion plate rotates on the movable column via the bearing seat in the later stage, and the ring seat rotates to change the position of the bar grinding, so that the bar can be flipped and adjusted 180 degrees.

[0015] Furthermore, a switch is fixed to the side of the base, and a support base is fixed to the bottom of the base.

[0016] With the above technical solution, the switch is connected to the electrical equipment through the wire, and the switch controls the opening of the electrical equipment. The support base suspends the base, and the suspended base provides space for the movement of the movable frame.

[0017] In summary, this application includes at least one of the following beneficial technical effects:

[0018] 1. The adjustment mechanism of this application moves the movable frame, and the movement of the movable frame changes the position of the support plate supporting the rod. The position of the support point is adjusted according to the length of the rod. Because the plastic rod itself is flexible, the support plate keeps the rod parallel and perpendicular, so as to achieve the grinding of the surface of the rod.

[0019] 2. After the limiting post is installed inside the opening, the limiting post serves two purposes: firstly, it limits and fixes the clamping assembly; secondly, it pushes the bar between the extrusion plates to move upward, and the bar achieves three-point support and limitation under the push of the extrusion plates and the limiting post. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present application;

[0021] Figure 2 This is a schematic diagram of the movable frame after it has been moved according to this application;

[0022] Figure 3 This is a schematic diagram of the protrusion structure in this application;

[0023] Figure 4 This is a side cross-sectional view of the clamping assembly of this application;

[0024] In the diagram: 1. Base; 2. Movable frame; 3. Lifting mechanism; 4. Support plate; 5. Fixed seat; 6. Pushing mechanism; 7. Clamping assembly; 8. Opening; 9. Support column; 10. Displacement mechanism; 11. Movable column; 12. Switch; 13. Support seat; 14. Adjustment mechanism; 15. Slot; 16. Limiting column; 17. Protrusion; 18. Ring seat; 19. Rubber seat; 20. Extrusion plate; 21. Bearing seat. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] Please see Figures 1 to 4This utility model provides a technical solution: a grinding fixture for engineering plastic round bars, used in bar grinding equipment, including a fixture body, the fixture body including a base 1, a movable frame 2 movably mounted on the base 1, a lifting mechanism 3 fixed on the movable frame 2, a support plate 4 fixed on the lifting mechanism 3, a fixed seat 5 welded on the base 1, a clamping assembly 7 movably mounted on the fixed seat 5, a pushing mechanism 6 fixed on the base 1, a support column 9 mounted on the pushing mechanism 6, a displacement mechanism 10 fixed on the support column 9, a movable column 11 mounted on the displacement mechanism 10, and the movable column 11 movably mounted on the clamping assembly 7. Both the pushing mechanism 6 and the displacement mechanism 10 are electric push rods, the electric push rods push the extrusion plate 20 to move, and the movement of the extrusion plate 20 clamps and fixes bars of different diameters.

[0027] See Figure 2 and Figure 3 An adjustment mechanism 14 is fixedly installed inside the base 1. One end of the adjustment mechanism 14 is fixed to the movable frame 2. The adjustment mechanism 14 is an electric push rod. The electric push rod pushes the movable frame 2 to move. The movement of the movable frame 2 changes the position of the support plate 4 supporting the bar. The position of the support point is adjusted according to the length of the bar.

[0028] See Figure 2 and Figure 3 The bottom inner wall of the movable frame 2 is welded with a protrusion 17, and the bottom of the base 1 is opened with a slot 15. The protrusion 17 is movably installed inside the slot 15. The movable frame 2 moves inside the slot 15 through the protrusion 17. The movement provides a horizontal moving force for the movement of the movable frame 2, and avoids the deviation caused by the swaying of the movable frame 2 when it moves.

[0029] See Figure 1 , Figure 2 and Figure 4 The clamping assembly 7 includes a ring seat 18, and a rubber seat 19 is fixed inside the ring seat 18. Both the rubber seat 19 and the ring seat 18 have openings 8. A limit post 16 is welded onto the fixing seat 5. The limit post 16 is movably installed inside the opening 8. After the limit post 16 is installed inside the opening 8, on the one hand, the limit post 16 limits and fixes the clamping assembly 7, and on the other hand, the limit post 16 pushes the bar between the extrusion plates 20 to move upward. The bar achieves three-point support and limitation under the push of the extrusion plates 20 and the limit post 16.

[0030] See Figure 4 An extrusion plate 20 is installed at one end of the movable column 11. The extrusion plate 20 is mounted on the movable column 11 through the bearing seat 21. The extrusion plate 20 rotates on the movable column 11 through the bearing seat 21. The ring seat 18 rotates to change the position of the bar being ground, so that the bar can be rotated 180 degrees.

[0031] See Figure 1A switch 12 is fixed to the side of the base 1, and a support base 13 is fixed to the bottom of the base 1. The switch 12 is connected to the electrical equipment through a wire and controls the opening of the electrical equipment through the switch 12. The support base 13 suspends the base 1 in the air, and the suspension of the base 1 provides space for the movement of the movable frame 2.

[0032] The implementation principle of a grinding fixture for engineering plastic round bars in this application embodiment is as follows: When using the device, firstly, the pushing mechanism 6 is activated to move the ring seat 18 upwards, placing the bar inside the rubber seat 19. Then, the displacement mechanism 10 is activated to move the movable column 11 on the ring seat 18. As the movable column 11 moves, it pushes the extrusion plate 20, which simultaneously moves inwards to extrude the bar. After the extrusion plate 20 extrudes the bar, the pushing mechanism 6 causes the support column 9 to retract. After the support column 9 retracts, it installs the limiting column 16 inside the opening 8. One end of the limiting column 16 contacts the top of the bar to complete three-point support. Once the bar support is complete... Then, adjust the position of the support plate 4 according to the length of both ends of the bar, start the adjustment mechanism 14 to push the movable frame 2 to move, and after the movable frame 2 moves, adjust the position of the lifting mechanism 3. The lifting mechanism 3 pushes the support plate 4 up and down to support the bar and keep the bar flat. The bar is then polished by the polishing device. After the top of the bar is polished, the pushing mechanism 6 pushes the ring seat 18 to move upward. After the ring seat 18 moves upward, the limiting column 16 loses its limiting on the ring seat 18. The ring seat 18 is rotated 180 degrees on the movable column 11. After the ring seat 18 rotates 180 degrees, the bar is flipped over and the other side is polished to meet the polishing requirements.

[0033] The advantages of this embodiment are:

[0034] This application adjusts the mechanism to move the movable frame. The movement of the movable frame changes the position of the support plate supporting the rod. The position of the support point is adjusted according to the length of the rod. Because the plastic rod itself is flexible, the support plate keeps the rod parallel and perpendicular, thus enabling the grinding of the rod surface.

[0035] After the limiting post is installed inside the opening, it serves two purposes: firstly, it limits and fixes the clamping assembly; secondly, it pushes the bar between the extrusion plates to move upward, and the bar achieves three-point support and limitation under the push of the extrusion plates and the limiting post.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A grinding fixture for engineering plastic round bars, used in bar grinding equipment, comprising a fixture body, characterized in that: The clamp body includes a base (1), a movable frame (2) is movably mounted on the base (1), a lifting mechanism (3) is fixed on the movable frame (2), a support plate (4) is fixed on the lifting mechanism (3), a fixed seat (5) is welded on the base (1), a clamping assembly (7) is movably mounted on the fixed seat (5), a pushing mechanism (6) is fixed on the base (1), a support column (9) is mounted on the pushing mechanism (6), a displacement mechanism (10) is fixed on the support column (9), a movable column (11) is mounted on the displacement mechanism (10), and the movable column (11) is movably mounted on the clamping assembly (7).

2. The grinding fixture for engineering plastic round bars according to claim 1, characterized in that: An adjustment mechanism (14) is fixedly installed inside the base (1), and one end of the adjustment mechanism (14) is fixed on the movable frame (2).

3. The grinding fixture for engineering plastic round bars according to claim 1, characterized in that: The bottom inner wall of the movable frame (2) is welded with a protrusion (17), and the bottom of the base (1) is opened with a slot (15). The protrusion (17) is movably installed inside the slot (15).

4. The grinding fixture for engineering plastic round bars according to claim 1, characterized in that: The clamping assembly (7) includes a ring seat (18), and a rubber seat (19) is fixed inside the ring seat (18). Both the rubber seat (19) and the ring seat (18) have openings (8). A limit post (16) is welded on the fixed seat (5), and the limit post (16) is movably installed inside the opening (8).

5. A grinding fixture for engineering plastic round bars according to claim 1, characterized in that: An extrusion plate (20) is installed at one end of the movable column (11), and the extrusion plate (20) is mounted on the movable column (11) via a bearing seat (21).

6. The grinding fixture for engineering plastic round bars according to claim 1, characterized in that: A switch (12) is fixed to the side of the base (1), and a support base (13) is fixed to the bottom of the base (1).

Citation Information

Patent Citations

  • A rod grinding device

    CN116728178B