Positioning structure for plastic accessory polishing

Abstract

The utility model discloses a positioning structure for plastic part polishing, which comprises a positioning seat and a mounting plate, the mounting plate is welded on the bottom surface of the positioning seat, pre-fixing mechanisms are fixedly mounted on two sides of the upper surface of the positioning seat, each pre-fixing mechanism comprises a pre-fixing plate, a pressing plate is further mounted on the upper surface of the positioning seat, and the pre-fixing plates are fixedly mounted on the mounting plate. The number of the pressing plates is two, air cylinders are fixed to the bottom faces of the two pressing plates, two threaded rods are rotationally installed in the positioning base, sliding blocks are installed on the two threaded rods in a sliding mode, and the air cylinders are fixed to the top faces of the sliding blocks; through cooperation of the pressing plate and the pre-fixing mechanism, when the plastic part is positioned, the plastic part can be fixed in multiple directions at the same time, deviation in the polishing process is avoided, the polishing accuracy is maintained, the height can be increased when the plastic part is fixed through the pressing plate in combination with the air cylinder, and therefore the plastic part can be fixed more stably. And the plastic accessories with different thicknesses are fixed, and the positioning stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic product production, in particular to a positioning structure for polishing plastic accessories. Background Art

[0002] Plastic accessories are a kind of products that are widely used in the market. Since most plastic accessories need to ensure the gloss and beauty of their surface during application, plastic accessories often use polishing technology to ensure the beauty of plastic accessories during the production process. Therefore, in the polishing process, the positioning of plastic accessories is an important part of the polishing process. In order to ensure the polishing effect of plastic accessories, it is necessary to ensure the good fixation of the positioning structure.

[0003] After searching, the utility model with application number CN201920468589.6 discloses a polishing positioning device, characterized in that it includes a base and at least one set of pressing mechanisms arranged on the base, a T-slot is arranged on the top surface of the base, and the middle part of the pressing mechanism is connected to the T-slot via a bolt; the pressing mechanism includes a pressing plate and a hexagonal support block, a pressure head is arranged at the bottom right of the pressing plate, a strip groove is arranged on the left side of the pressing plate, a rotating shaft is arranged on both side walls of the hexagonal support block, the rotating shaft is rotatably connected to the inner wall of the strip groove, the rotating shaft is arranged near an outer side edge of the hexagonal support block, the hexagonal support block is rotatably installed in the strip groove via the rotating shaft, and an outer side edge of the hexagonal support block is against the top surface of the base. The utility model improves the positioning efficiency and quality of the product and ensures the polishing quality of the product.

[0004] The above scheme mentions a polishing processing positioning device. Although the scheme optimizes the positioning design of products of different thicknesses, it only positions one side of the product, which is easy to offset during the polishing process, affecting the polishing effect. In addition, the pressure plate is adjusted only by the support block, which not only has certain limitations on the height, but also has poor stability. Therefore, we need to propose a positioning structure for polishing plastic accessories. Utility Model Content

[0005] The purpose of the utility model is to provide a positioning structure for polishing plastic accessories. Through the cooperation of the pressure plate and the pre-fixing mechanism, the plastic accessories can be fixed in multiple directions at the same time when positioning, so as to avoid deviation during the polishing process and maintain the accuracy of polishing. In combination with the cylinder, the pressure plate can be raised when fixing the plastic accessories, and plastic accessories of different thicknesses can be fixed, thereby reducing the limitations on the thickness of the fixed plastic accessories and improving the stability of positioning, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning structure for polishing plastic accessories, comprising a positioning seat and a mounting plate, the mounting plate being welded to the bottom surface of the positioning seat, and pre-fixing mechanisms are fixedly installed on both sides of the upper surface of the positioning seat, the pre-fixing mechanisms include pre-fixing plates, and a pressure plate is also installed on the upper surface of the positioning seat, and two pressure plates are provided, and cylinders are fixed to the bottom surfaces of the two pressure plates, and rubber pads are also fixed to one side of the two pressure plates, and two threaded rods are rotatably installed inside the positioning seat, and sliders are slidably installed on the two threaded rods, and the two sliders move oppositely along the threaded rods respectively, and the cylinder is fixed to the top surface of the slider.

[0007] Preferably, screws are installed on the mounting plate, and four screws are provided. Screw holes are provided at four corners of the mounting plate, and screws are installed in the four screw holes.

[0008] Preferably, the pre-fixing mechanism comprises a fixing plate, a spring is fixedly mounted on one side of the fixing plate, a compression rod is embedded in the spring, and the pre-fixing plate is mounted on one end of the spring.

[0009] Preferably, one end of the compression rod is welded to the fixing plate, and the other end of the compression rod is fixedly mounted on the pre-fixing plate.

[0010] Preferably, a movable groove is provided on the upper surface of the positioning seat, and the output end of the cylinder is slidably installed in the movable groove.

[0011] Preferably, a groove is provided in the positioning seat, the movable groove is connected to the groove, the two threaded rods are respectively installed on the two opposite inner walls of the groove, one end of the two threaded rods is fixedly connected to the second bevel gear, and the two second bevel gears are meshed with the first bevel gear.

[0012] Preferably, a through hole is opened on one side of the positioning seat, a rotating shaft is installed in the through hole, one end of the rotating shaft is fixedly connected to the first bevel gear, and a crank is fixed to the other end of the rotating shaft.

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

[0014] 1. The utility model uses the pressure plate and the cooperation with the pre-fixing mechanism to fix the plastic accessories in multiple directions at the same time when positioning, so as to avoid deviation during the polishing process and maintain the accuracy of polishing.

[0015] 2. The utility model, through the cooperation of the cylinder and the pressing plate, can make the pressing plate raise the height when fixing the plastic accessories, fix the plastic accessories of different thicknesses, reduce the limitation of the thickness of the fixed plastic accessories, and improve the stability of positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the practical positioning seat;

[0018] Figure 3 It is a schematic diagram of the structure of the pre-fixing mechanism of the utility model.

[0019] In the figure: 1. mounting plate; 2. positioning seat; 3. screw; 4. pressure plate; 5. pre-fixing mechanism; 6. moving groove; 7. crank; 8. threaded rod; 401. rubber pad; 501. fixing plate; 502. compression rod; 503. spring; 504. pre-fixing plate; 701. No. 1 bevel gear; 702. rotating shaft; 801. No. 2 bevel gear; 802. slider; 803. cylinder. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 The utility model provides a technical solution: a positioning structure for polishing plastic accessories, including a positioning seat 2 and a mounting plate 1, the mounting plate 1 is welded to the bottom surface of the positioning seat 2, and pre-fixing mechanisms 5 are fixedly installed on both sides of the upper surface of the positioning seat 2, and the pre-fixing mechanisms 5 include pre-fixing plates 504. A pressing plate 4 is also installed on the upper surface of the positioning seat 2, and two pressing plates 4 are provided. Cylinders 803 are fixed to the bottom surfaces of the two pressing plates 4. The cylinders 803 can adjust the height of the pressing plates 4 to adapt to plastic accessories of different heights. Rubber pads 401 are also fixed on one side of the two pressing plates 4. The rubber pads 401 can not only increase the friction force on the plastic accessories and enhance the positioning ability, but also have a certain protective effect on some fragile plastic accessories, preventing the pressing plates 4 from directly contacting the plastic accessories and causing damage to the plastic accessories. Two threaded rods 8 are rotatably installed inside the positioning seat 2, and sliders 802 are slidably installed on the two threaded rods 8. The two sliders 802 move in opposite directions along the threaded rods 8 respectively, and the cylinders 803 are fixed to the top surfaces of the sliders 802.

[0022] Screws 3 are installed on the mounting plate 1, and four screws 3 are provided. Screw holes are opened at the four corners of the mounting plate 1, and screws 3 are installed in the four screw holes. This makes it convenient to disassemble the positioning mechanism through the screws 3 and also increases the stability after installation.

[0023] The pre-fixing mechanism 5 includes a fixing plate 501, on one side of which a spring 503 is fixedly installed, and a compression rod 502 is embedded in the spring 503. Such a configuration can not only extend the service life of the pre-fixing mechanism 5, but also position the spring 503. The pre-fixing plate 504 is installed at one end of the spring 503, one end of the compression rod 502 is welded to the fixing plate 501, and the other end of the compression rod 502 is fixedly installed on the pre-fixing plate 504. The plastic accessories will be placed between the pre-fixing plates 504 by compressing the spring 503 and the compression rod 502 through the pre-fixing plate 504, and then react to the plastic accessories through the elastic force of the spring 503.

[0024] A movable groove 6 is provided on the upper surface of the positioning seat 2, and the output end of the cylinder 803 is slidably installed in the movable groove 6. The width of the movable groove 6 is the same as the diameter of the output end of the cylinder 803. The slider 802 in the positioning seat 2 will drive the output end of the cylinder 803 to move in the movable groove 6. A groove is provided in the positioning seat 2, and the movable groove 6 is connected with the groove. Two threaded rods 8 are respectively installed on the two opposite inner walls of the groove. The threads on the two threaded rods 8 are arranged oppositely. One end of the two threaded rods 8 is fixedly connected with the No. 2 bevel gear 801, and the two No. 2 bevel gears 801 are meshed with the No. 1 bevel gear 701.

[0025] A through hole is provided on one side of the positioning seat 2, and a rotating shaft 702 is installed in the through hole. One end of the rotating shaft 702 is fixedly connected to the No. 1 bevel gear 701, and the other end of the rotating shaft 702 is fixed with a crank 7. After the crank 7 is turned, the No. 1 bevel gear 701 connected to the rotating shaft 702 will also rotate, and the two No. 2 bevel gears 801 meshing with the No. 1 bevel gear 701 box will rotate accordingly. The two No. 2 bevel gears 801 rotate in the same direction, driving the threaded rod 8 to start rotating, and the slider 802 will slide along the threaded rod 8. Since the threads on the threaded rod 8 are arranged in opposite directions, the two sliders 802 respectively drive the two pressure plates 4 to move relative to each other.

[0026] When in use, the mounting plate 1 is installed on the polishing equipment with the screws 3, and the plastic accessories to be polished are pre-fixed on the pre-fixing mechanism 5 first. The plastic accessories to be polished will be fixed between the compression spring 503 and the compression rod 502 by the pre-fixing plate 504, and then the crank 7 is manually turned, and the crank 7 drives the rotating shaft 702 to rotate. Due to the rotation of the No. 1 bevel gear 701 and the engagement of the No. 2 bevel gear 801, the slider 802 on the threaded rod 8 will drive the pressure plate 4 to move in the opposite direction, and then the cylinder 803 is started to raise the pressure plate 4 to an appropriate height, and the plastic accessories are positioned with the rubber pad 401 on the pressure plate 4.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning structure for polishing plastic parts, comprising a positioning seat (2) and a mounting plate (1), characterized in that: The mounting plate (1) is welded to the bottom surface of the positioning seat (2); pre-fixing mechanisms (5) are fixedly installed on both sides of the upper surface of the positioning seat (2); the pre-fixing mechanisms (5) include pre-fixing plates (504); a pressure plate (4) is also installed on the upper surface of the positioning seat (2); two pressure plates (4) are provided; a cylinder (803) is fixed to the bottom surface of the two pressure plates (4); a rubber pad (401) is also fixed to one side of the two pressure plates (4); two threaded rods (8) are rotatably installed inside the positioning seat (2); a slider (802) is slidably installed on the two threaded rods (8); the two sliders (802) move in opposite directions along the threaded rods (8); and the cylinder (803) is fixed to the top surface of the slider (802).

2. A positioning structure for polishing plastic parts according to claim 1, characterized in that: Screws (3) are installed on the installation plate (1), and four screws (3) are provided. Screw holes are provided at four corners of the installation plate (1), and screws (3) are installed in the four screw holes.

3. A positioning structure for polishing plastic parts according to claim 1, characterized in that: The pre-fixing mechanism (5) further comprises a fixing plate (501), a spring (503) being fixedly mounted on one side of the fixing plate (501), a compression rod (502) being embedded in the spring (503), and the pre-fixing plate (504) being mounted on one end of the spring (503).

4. A positioning structure for polishing plastic parts according to claim 3, characterized in that: One end of the compression rod (502) is welded to the fixing plate (501), and the other end of the compression rod (502) is fixedly mounted on the pre-fixing plate (504).

5. The positioning structure for polishing plastic parts according to claim 1, characterized in that: The upper surface of the positioning seat (2) is provided with a movable groove (6), and the output end of the cylinder (803) is slidably mounted in the movable groove (6).

6. A positioning structure for polishing plastic parts according to claim 5, characterized in that: A groove is provided in the positioning seat (2), the movable groove (6) is connected to the groove, and the two threaded rods (8) are respectively mounted on two opposite inner side walls of the groove, one end of the two threaded rods (8) is fixedly connected to a second bevel gear (801), and the two second bevel gears (801) are meshed with the first bevel gear (701).

7. A positioning structure for polishing plastic parts according to claim 6, characterized in that: A through hole is provided on one side of the positioning seat (2), a rotating shaft (702) is installed in the through hole, one end of the rotating shaft (702) is fixedly connected to the first bevel gear (701), and the other end of the rotating shaft (702) is fixed with a crank (7).

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