Plastic sleeve positioning clamp

Abstract

The utility model discloses a plastic sleeve positioning fixture, relates to the field of positioning fixtures, and aims to solve the technical problems that the existing positioning fixture in the prior art is fixed by clamping the outer surface of a plastic sleeve, but the hardness of the plastic sleeve is not high, the plastic sleeve is easy to deform by clamping the outer surface of the plastic sleeve, and the service life of the plastic sleeve is influenced. And damage is caused. A positioning plate is fixedly arranged in the middle of the upper end of the supporting plate, strip-shaped openings are formed in the two sides of the middle of the positioning plate, an adjusting seat is fixedly connected to the rear end face of the positioning plate and located at the rear ends of the two strip-shaped openings, a limiting sliding groove is formed in the adjusting seat, and sliding blocks are connected to the two sides of the middle in the limiting sliding groove in a limiting mode. And the front ends of the two sliding blocks penetrate through the two strip-shaped openings correspondingly, extend out of the front end face of the positioning plate and are fixedly connected with clamp plates, one sides of the front ends of the clamp plates are fixedly connected with first clamping blocks, and the other sides of the front ends of the clamp plates are provided with second clamping blocks.

Description

Technical Field

[0001] This utility model relates to the field of positioning clamps, specifically a plastic sleeve positioning clamp. Background Technology

[0002] Plastic sleeves, also known as plastic bushings, are thin-walled parts that wrap around shafts. They are typically made of polymer materials such as nylon and polytetrafluoroethylene (PTFE). These materials give plastic bushings excellent wear resistance, corrosion resistance, heat resistance, oil resistance, and chemical resistance. In mechanical equipment, the main function of plastic bushings is to reduce wear between the shaft and the equipment, prevent direct contact between the shaft and the equipment, thereby improving the transmission efficiency and extending the service life of the equipment.

[0003] For example, the authorized announcement number CN207064474U discloses a plastic bushing that solves the problem that when installing a ring-shaped bushing, it is difficult to achieve a certain interference fit with the mounting hole, making it difficult to easily insert the bushing into the mounting hole for fixed insertion. Furthermore, it is very inconvenient to disassemble a bushing with worn bushing holes, resulting in a cumbersome and laborious overall operation. The key technical points of this solution are: a body and a bushing hole opened in the body; a retaining ring extending horizontally along the circumferential edge of the front side of the body; a circumferential arc transition between the rear edge of the body and the outer circumferential surface of the body; and a slot opened along a generatrix on one side of the body, connecting the bushing hole and the outside to provide space for deformation of the body. The slot connects to the retaining ring. This plastic bushing of the present invention is firmly and stably installed and is more labor-saving and convenient to install and disassemble.

[0004] During the production of plastic sleeves, positioning fixtures are required for fixing. Existing positioning fixtures fix the plastic sleeves by clamping the outer surface of the sleeves. However, plastic sleeves are not very hard, and clamping the outer surface of the sleeves can easily cause deformation and damage. Therefore, there is an urgent need in the market to develop a new positioning fixture for plastic sleeves to help solve the existing problems. Utility Model Content

[0005] The purpose of this utility model is to provide a plastic sleeve positioning clamp to solve the problem that the existing positioning clamps mentioned in the background art are all fixed by clamping the outer surface of the plastic sleeve. However, the plastic sleeve has low hardness, and clamping the outer surface of the plastic sleeve can easily cause deformation and damage to the plastic sleeve.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a plastic sleeve positioning fixture, comprising a support plate, a positioning plate fixedly disposed at the upper middle part of the support plate, and strip-shaped openings on both sides of the middle part of the positioning plate. An adjusting seat is fixedly connected to the rear end face of the positioning plate and the rear end of the two strip-shaped openings. A limiting groove is provided inside the adjusting seat. A slider is limitedly connected to both sides of the middle part of the limiting groove. The front ends of the two sliders extend out of the front end face of the positioning plate through the two strip-shaped openings and are fixedly connected to a clamping plate. A first clamping block is fixedly connected to one side of the front end of the clamping plate, and a second clamping block is provided on the other side of the front end of the clamping plate. A plastic sleeve is provided at the front end of both clamping plates.

[0007] Preferably, a rotating shaft is rotatably connected to the center of the limiting groove, and two threaded portions are fixedly provided in the center of the rotating shaft, with the two threaded portions arranged in a mirror image.

[0008] Preferably, the two sides of the middle part of the rotating shaft pass through the interior of the two sliders respectively, and the two threaded parts on the rotating shaft are threadedly connected to the two sliders respectively.

[0009] Preferably, a driving device is fixedly installed on one side of the adjusting seat, a driving motor is fixedly installed inside the driving device, and one end of the rotating shaft extends into the driving device and is fixedly connected to the output shaft of the driving motor.

[0010] Preferably, a fixing plate is fixedly connected to the other side of the front end of the clamping plate, and an electrically controlled telescopic rod is fixedly connected to one side of the fixing plate.

[0011] Preferably, the telescopic end of the electrically controlled telescopic rod passes through the fixed plate and is fixedly connected to the middle of one side of the second clamping block.

[0012] Preferably, the two first clamping blocks are respectively attached to both sides of the inner wall of the plastic sleeve.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) In this utility model, the plastic sleeve positioning fixture adopts an internal clamping method, that is, the first clamping block is attached to both sides of the inner wall of the plastic sleeve for initial positioning and support, which effectively avoids the plastic sleeve deformation problem that may be caused by the traditional external clamping method, thereby ensuring the integrity and accuracy of the plastic sleeve in the processing process.

[0015] (2) In this utility model, the rotating shaft and the threaded part set in a mirror image are driven by the drive motor to rotate, so as to realize the mirror movement of the two sliders in the limiting groove, thereby driving the two clamping plates and the clamping blocks on them to clamp the plastic sleeve. This design is not only simple in structure and convenient in operation, but also stable and reliable in clamping, which greatly improves production efficiency.

[0016] (3) In this utility model, by adding an electrically controlled telescopic rod and a second clamping block, the outer wall of the plastic sleeve is further clamped and fixed, ensuring the stability and accuracy of the plastic sleeve during the processing. At the same time, the telescopic adjustment function of the electrically controlled telescopic rod is also convenient to make flexible adjustments according to plastic sleeves of different sizes, improving the versatility and practicality of the fixture. Attached Figure Description

[0017] Figure 1 This is a front view of a plastic sleeve positioning clamp according to the present invention;

[0018] Figure 2 This is a main sectional view of the electrically controlled telescopic pole of this utility model;

[0019] Figure 3 This is a top sectional view of the adjustment seat of this utility model;

[0020] Figure 4 This is a detailed enlarged view of part A of this utility model.

[0021] In the diagram: 1. Support plate; 101. Positioning plate; 102. Strip opening; 2. Adjusting seat; 201. Limiting groove; 202. Rotating shaft; 203. Threaded part; 204. Drive device; 205. Drive motor; 3. Slider; 301. Fixture plate; 302. First clamping block; 303. Fixing plate; 4. Electrically controlled telescopic rod; 401. Second clamping block; 5. Plastic sleeve. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4This utility model provides an embodiment of a plastic sleeve positioning clamp, including a support plate 1. A positioning plate 101 is fixedly disposed at the middle of the upper end of the support plate 1. Both sides of the middle of the positioning plate 101 have strip-shaped openings 102. An adjusting seat 2 is fixedly connected to the rear end face of the positioning plate 101 and to the rear ends of the two strip-shaped openings 102. A limiting groove 201 is provided inside the adjusting seat 2. Slider blocks 3 are limited and connected to both sides of the middle of the limiting groove 201. A rotating shaft 202 is rotatably connected to the middle of the limiting groove 201. Threaded portions 203 are fixedly disposed at both ends of the middle of the rotating shaft 202. The threaded portions 203 are arranged in a mirror image. The two sides of the middle of the rotating shaft 202 pass through the interior of the two sliders 3 respectively. The two threaded portions 203 on the rotating shaft 202 are threadedly connected to the two sliders 3 respectively. A driving device 204 is fixedly installed on one side of the adjusting seat 2. A driving motor 205 is fixedly installed inside the driving device 204. One end of the rotating shaft 202 extends into the interior of the driving device 204 and is fixedly connected to the output shaft of the driving motor 205. The driving motor 205 drives the rotating shaft 202 to rotate, thereby causing the rotating shaft 202 to drive the two sliders 3 to move in a mirror image inside the limiting groove 201.

[0024] Please see Figure 2-4 Two sliders 3 extend from the front ends of two strip openings 102 through the front ends of positioning plates 101 and are fixedly connected to clamping plates 301. A first clamping block 302 is fixedly connected to one side of the front end of clamping plates 301, and a second clamping block 401 is provided on the other side of the front end of clamping plates 301. A plastic sleeve 5 is provided at the front ends of the two clamping plates 301. The two first clamping blocks 302 are respectively attached to the inner walls of the plastic sleeve 5. After the plastic sleeve 5 is placed at the front ends of the two positioning plates 101, the rear ends of the plastic sleeve 5 are respectively inserted between the first clamping blocks 302 and the second clamping blocks 401 at the front ends of the two positioning plates 101. The sliders 3, which move in a mirror image, drive the two positioning plates 101 to move. The plate 101 moves, causing the two first clamping blocks 302 to move outward and fit against the inner walls of the plastic sleeve 5 respectively, providing initial positioning and support for the plastic sleeve 5. A fixing plate 303 is fixedly connected to the other side of the front end of the clamping plate 301. An electrically controlled telescopic rod 4 is fixedly connected to one side of the fixing plate 303. The telescopic end of the electrically controlled telescopic rod 4 passes through the fixing plate 303 and is fixedly connected to the middle of one side of the second clamping block 401. After the plastic sleeve 5 is initially positioned, the two electrically controlled telescopic rods 4 work to push the two second clamping blocks 401 to move and clamp the outer walls of the plastic sleeve 5, thereby clamping the plastic sleeve 5 and enabling independent clamping of the two rear ends of the plastic sleeve 5.

[0025] Working principle: In use, after placing the plastic sleeve 5 at the front end of the two positioning plates 101, the rear ends of the plastic sleeve 5 are inserted between the first clamping block 302 and the second clamping block 401 at the front end of the two positioning plates 101, respectively. Then, the drive motor 205 is started, and the output shaft of the drive motor 205 drives the rotating shaft 202 to rotate. Since the rotating shaft 202 is provided with two mirrored threaded parts 203, the rotation of the rotating shaft 202 will drive the two sliders 3 to move in opposite directions within the limiting groove 201. This movement causes the two clamping plates 301 and the first clamping block 302 on them to gradually approach and fit against the inner wall of the plastic sleeve 5, achieving initial positioning and support for the plastic sleeve 5, avoiding deformation that may be caused by directly clamping the outer wall. Then, the electrically controlled telescopic rod 4 is activated, and its telescopic end pushes the second clamping block 401 to move towards the outer wall of the plastic sleeve 5 until it fits tightly and is clamped, thus completing the stable clamping of the plastic sleeve 5. This design ensures the stability and accuracy of the plastic sleeve 5 during processing, effectively preventing damage caused by improper clamping.

[0026] It will be apparent to those skilled in the art that this invention 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 essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A plastic sleeve positioning clamp, comprising a support plate (1), characterized in that: A positioning plate (101) is fixedly installed at the middle of the upper end of the support plate (1). A strip opening (102) is provided on both sides of the middle of the positioning plate (101). An adjustment seat (2) is fixedly connected to the rear end face of the positioning plate (101) and the rear end of the two strip openings (102). A limiting groove (201) is provided inside the adjustment seat (2). A slider (3) is fixedly connected to both sides of the middle of the limiting groove (201). The front ends of the two sliders (3) extend out of the front end face of the positioning plate (101) through the two strip openings (102) and are fixedly connected to a clamping plate (301). A first clamping block (302) is fixedly connected to one side of the front end of the clamping plate (301). A second clamping block (401) is provided on the other side of the front end of the clamping plate (301). A plastic sleeve (5) is provided at the front end of both clamping plates (301).

2. The plastic sleeve positioning clamp according to claim 1, characterized in that: The center of the limiting slide (201) is rotatably connected to a rotating shaft (202), and two threaded portions (203) are fixedly provided in the center of the rotating shaft (202), with the two threaded portions (203) arranged in a mirror image.

3. A plastic sleeve positioning clamp according to claim 2, characterized in that: The rotating shaft (202) passes through the interior of two sliders (3) on both sides of the middle section, and the two threaded parts (203) on the rotating shaft (202) are threadedly connected to the two sliders (3) respectively.

4. A plastic sleeve positioning clamp according to claim 3, characterized in that: A drive device (204) is fixedly installed on one side of the adjustment seat (2), and a drive motor (205) is fixedly installed inside the drive device (204). One end of the rotating shaft (202) extends into the drive device (204) and is fixedly connected to the output shaft of the drive motor (205).

5. A plastic sleeve positioning clamp according to claim 1, characterized in that: A fixing plate (303) is fixedly connected to the other side of the front end of the clamp plate (301), and an electrically controlled telescopic rod (4) is fixedly connected to one side of the fixing plate (303).

6. A plastic sleeve positioning clamp according to claim 5, characterized in that: The telescopic end of the electrically controlled telescopic rod (4) passes through the fixed plate (303) and is fixedly connected to the middle of one side of the second clamping block (401).

7. A plastic sleeve positioning clamp according to claim 1, characterized in that: The two first clamping blocks (302) are respectively attached to the two sides of the inner wall of the plastic sleeve (5).

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