Plastic gear mold convenient to position

Abstract

The utility model relates to the technical field of plastic gear moulds, in particular to a plastic gear mould convenient to position, which is characterized in that a two-way threaded rod is rotatably connected in a worktable, two sliding blocks are in threaded connection with the outer surface of the two-way threaded rod, and supporting seats are fixedly connected with the upper ends of the two sliding blocks; first clamping blocks are slidably connected to the outer surfaces of the two supporting seats correspondingly, a set of second clamping blocks are rotatably connected into the two first clamping blocks correspondingly, an output shaft of a driving motor drives a two-way threaded rod to rotate, and the two sliding blocks are driven by rotation of the two-way threaded rod to synchronously slide towards the center of the workbench. The two sliding blocks drive the first clamping block to slide through the supporting base for clamping operation, before the first clamping block is attached to the surface of the mold, the surface of the mold is attached to the surfaces of the second clamping blocks and extrudes and pushes the second clamping blocks to rotate, and the four second clamping blocks are attached to the four corners of the surface of the mold, so that the clamping stability is further improved; and stable operation of positioning operation is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic gear mould, especially to a plastic gear mould convenient to position. BACKGROUND

[0002] The plastic gear mould convenient to position is mainly used to ensure accurate forming in the production process of plastic gears, improve the quality and precision of plastic gears, help production enterprises improve production efficiency and reduce the scrap rate. In actual production, this mould is widely used in various manufacturing scenarios of plastic gears, such as automobile parts production, mechanical transmission device manufacturing, electronic equipment production, etc. Through accurate positioning, the mould can ensure that the tooth shape, pitch and other key parameters of the plastic gear meet the design requirements, so as to meet the performance requirements of different products on the plastic gear. In practical applications, the plastic gear mould convenient to position usually needs the following technologies:

[0003] 1. High-precision positioning elements such as positioning pins and positioning blocks to ensure accurate alignment of the mould during mould closing,

[0004] 2. Precise guide structure to guide the movement direction of the mould and reduce deviation,

[0005] 3. Advanced processing technology to ensure the manufacturing precision and surface quality of the mould,

[0006] 4. High-quality mould material with good wear resistance and rigidity.

[0007] Currently, various equipment and methods are used to achieve accurate positioning of plastic gear moulds.

[0008] For example, a rapid positioning mechanism for plastic mould production and processing is disclosed in Chinese patent CN221967432U. By setting the clamping device, the first bevel gear rotates under the action of the motor output end, driving the two second bevel gears to rotate, and the two second bevel gears rotate to drive the two lead screws to rotate, and the two lead screws rotate together with the two driven rods to drive the two sliding plates to move towards the middle. A plurality of rubber pads clamp the plastic mould to be processed, thereby achieving the purpose of effectively clamping and positioning the plastic mould to be processed.

[0009] However, the above-mentioned method has a prominent problem, i.e. the above-mentioned device clamps and positions the mould by sliding the two sliding plates, but the clamp in the above-mentioned device lacks multi-surface clamping function. During positioning operation, it is necessary to ensure that the clamped surface of the mould and the sliding plate are on the same horizontal line. If the initial placement position of the mould is slightly deviated, the mould may not be clamped uniformly and effectively, the clamping force in some areas may be too large, and the clamping force in some areas may be too small, which may cause displacement during processing, affecting processing precision and quality. Utility model content

[0010] (I) The technical problem solved

[0011] In view of the deficiencies of the prior art, the utility model provides a plastic gear mold convenient to position, solves that the device is clamped and positioned to the mold through two sliding plates, but the clamp in the device lacks multi -surface clamping function, and it is required to ensure that the mold clamping surface and the sliding plate are on the same horizontal line during positioning operation, if the initial placement position of the mold is slightly deviated, the mold can not be uniformly and effectively clamped, the clamping force of partial area is too large, the clamping force of partial area is too small, displacement is easily generated in the processing process, and the technical problem of affecting processing precision and quality.

[0012] (II) Technical scheme

[0013] In order to realize the above object, the utility model is realized through the following technical scheme:

[0014] A plastic gear mold convenient to position, including workbench, the inside rotationally connected with two -way screw rod of workbench, the outer surface of two -way screw rod is connected with two sliding blocks, the upper end of two sliding blocks is fixedly connected with support seat, the outer surface of two support seats is slidably connected with first clamping block, the inside of two first clamping blocks is rotatably connected with a group of second clamping blocks, the side of workbench is fixedly connected with driving mechanism, and the driving mechanism includes driving motor.

[0015] Preferably, the outer surface of the workbench is fixedly connected with a control box.

[0016] Preferably, the inside of two -way screw rod is sleeved with a shaft coupling, and the outer surface of two first clamping blocks is fixedly connected with a group of round rods.

[0017] Preferably, the outer surface of two groups of round rods is sleeved with a spring.

[0018] Preferably, the outer surface of two sliding blocks is fixedly connected with a group of sliding blocks, and the inside of workbench is provided with two groups of sliding grooves.

[0019] Preferably, the upper end of the workbench is fixedly connected with a group of positioning pins, and the outer surface of a group of positioning pins is sleeved with a mold body.

[0020] (III) Beneficial effects

[0021] I. When the installation positioning operation is performed, the driving motor is started, the driving motor output shaft drives the bidirectional threaded rod to rotate, the two threads of the bidirectional threaded rod rotate in opposite directions, the two sliding blocks are driven to slide synchronously towards the center of the workbench through the rotation of the bidirectional threaded rod, the first clamping block is driven to slide through the support seat to perform clamping operation, before the first clamping block and the mold surface are attached, the mold surface is attached to the surface of the second clamping block and extrudes the second clamping block to rotate, the two rotating second clamping blocks are attached to the mold corner connection, the area of the attached part is increased, the four second clamping blocks are attached to the four corners of the mold surface, so that the mold does not displace when extruded due to slight displacement during clamping operation, the stability of clamping is further improved, and stable positioning operation is ensured.

[0022] II. When the first clamping block is attached and clamped, the first clamping block slides in the support seat through the surface-connected round rod, the spring installed on the surface of the first clamping block and the support seat is extruded and contracted when the first clamping block slides, so as to play a buffering role, the buffering of the spring makes the contact between the first clamping block and the mold more stable, avoids position deviation caused by instantaneous violent collision, improves the stability of clamping, and more stable clamping force is beneficial to reduce the risk of damage of the mold. BRIEF DESCRIPTION OF DRAWINGS

[0023] The above description is only a summary of the technical scheme of the utility model, in order that the technical means of the utility model can be more clearly understood and implemented according to the content of the specification, the following preferred embodiments of the utility model are described in detail with the help of the drawings.

[0024] Figure 1 It is a perspective view of the utility model;

[0025] Figure 2 It is an explosion view of the bidirectional threaded rod connection of the utility model;

[0026] Figure 3 It is a first clamping block connection structure diagram of the utility model;

[0027] Figure 4 It is a second clamping block connection explosion view of the utility model.

[0028] Legend: 11, workbench; 12, bidirectional threaded rod; 13, sliding block; 14, support seat; 15, first clamping block; 16, second clamping block; 17, driving motor; 18, control box; 19, shaft coupling; 21, round rod; 22, spring; 23, sliding block; 24, sliding slot; 25, positioning pin; 26, mold body. DETAILED DESCRIPTION

[0029] The embodiment of the application provides a plastic gear mold convenient to position, effectively solves the problem that the device is used for clamping and positioning the mold by sliding two sliding plates, the clamp in the device lacks a multi-surface clamping function, and the mold clamping surface and the sliding plate need to be kept on the same horizontal line during positioning operation; if the initial placement position of the mold is slightly deviated, the mold cannot be uniformly and effectively clamped, the clamping force of some areas is too large, the clamping force of some areas is too small, displacement is easily generated during the machining process, and the machining precision and quality are affected; during installation and positioning operation, the driving motor is started, the output shaft of the driving motor drives the bidirectional threaded rod to rotate, the rotation directions of the two threads of the bidirectional threaded rod are opposite, the bidirectional threaded rod is rotated to drive the two sliding blocks to slide synchronously towards the center of the workbench, the two sliding blocks drive the first clamping block to slide through the support seat to perform clamping operation, before the first clamping block is attached to the surface of the mold, the surface of the mold is attached to the surface of the second clamping block and extrudes and pushes the second clamping block to rotate, the two rotating second clamping blocks are attached to the corner connecting portions of the mold, the area of the attachment portions is increased, the four second clamping blocks are attached to the four corner portions of the surface of the mold, the displacement of the mold is avoided when the mold is slightly deviated and is extruded, the stability of clamping is further improved, and stable positioning operation is ensured.

[0030] Embodiment

[0031] As Figure 1 , Figure 2 , Figure 3 and Figure 4The technical scheme in the embodiment of the application effectively solves the technical problem that the device in the prior art lacks multi-surface clamping function, and the mold cannot be uniformly and effectively clamped if the initial placement position of the mold is slightly deviated, the clamping force in some areas is too large, the clamping force in some areas is too small, displacement is easily generated in the machining process, and the machining precision and quality are affected. The overall idea is as follows: a plastic gear mold convenient to position includes a workbench 11, a bidirectional threaded rod 12 is rotationally connected inside the workbench 11, two sliding blocks 13 are threadedly connected to the outer surface of the bidirectional threaded rod 12, a support seat 14 is fixedly connected to the upper end of each of the two sliding blocks 13, a first clamping block 15 is slidingly connected to the outer surface of each of the two support seats 14, a set of second clamping blocks 16 are rotationally connected inside each of the two first clamping blocks 15, a driving mechanism is fixedly connected to one side of the workbench 11, and the driving mechanism includes a driving motor 17 fixedly connected to one side of the workbench 11. The bidirectional threaded rod 12 is sleeved on the outer surface of the driving motor 17. When installing and positioning, the driving motor 17 is started, the output shaft of the driving motor 17 drives the bidirectional threaded rod 12 to rotate, the rotation directions of the two threads of the bidirectional threaded rod 12 are opposite, the bidirectional threaded rod 12 drives the two sliding blocks 13 to synchronously slide toward the center of the workbench 11, the two sliding blocks 13 drive the first clamping blocks 15 to slide for clamping through the support seats 14. Before the first clamping blocks 15 are attached to the surface of the mold (the overall size of the first clamping blocks 15 is designed to be larger than the size of the surface of the mold, the two rotating second clamping blocks 16 are located on the edge surface of the mold, the edge of the mold is attached to the half size position of the second clamping blocks 16 on the same horizontal line when in the attached state, the surface extension size of the second clamping blocks 16 is larger than the surface size of the first clamping blocks 15, and the mold is first in contact with the surface of the second clamping blocks 16 when the first clamping blocks 15 slide), the surface of the mold is attached to the surface of the second clamping blocks 16 and extrudes and pushes the second clamping blocks 16 to rotate, the two rotating second clamping blocks 16 are attached to the corner connection positions of the mold (i.e., the positions where every two edges of the outer surface of the mold are connected), the attachment area is increased, the four second clamping blocks 16 are attached to the four corner positions of the mold surface, the displacement of the mold is avoided when the mold is slightly deviated in placement and is extruded, the stability of clamping is further improved, and the stable positioning operation is ensured.

[0032] The outer surface of the workbench 11 is fixedly connected with a control box 18, the driving motor 17 is in communication with the control box 18, the inner sleeve of the bidirectional threaded rod 12 is sleeved with a shaft coupling 19, the outer surface of the two first clamping blocks 15 is fixedly connected with a group of round rods 21, the outer surface of the two groups of round rods 21 is sleeved with a spring 22, the outer surface of the two groups of springs 22 is sleeved with the two support seats 14 respectively, the shaft coupling 19 is sleeved at the center of the bidirectional threaded rod 12 to compensate for the axial, radial and angular deviations that may exist during installation, so that the transmission system can run smoothly, the surface of the workbench 11 is provided with the control box 18, the control box 18 is in communication with the driving motor 17, and the staff can control the start-stop and forward-reverse rotation of the driving motor 17 by pressing the control box 18 during use. When the first clamping block 15 is in contact with the surface of the mold and is clamped, the first clamping block 15 will slide in the support seat 14 through the round rod 21 connected to its surface when it is extruded by the contact. When the first clamping block 15 slides, the spring 22 installed on the surface of the first clamping block 15 and the support seat 14 is compressed to serve as a buffer. The buffer of the spring 22 makes the contact between the first clamping block 15 and the mold more stable, avoiding position deviation caused by instantaneous violent collision, thereby improving the stability of clamping and more stable clamping force is conducive to reducing the risk of damage to the mold.

[0033] The outer surface of the two sliding blocks 13 is fixedly connected with a group of sliding blocks 23, the inner part of the workbench 11 is provided with two groups of sliding grooves 24, the two groups of sliding blocks 23 are respectively slidably connected in the two groups of sliding grooves 24, a group of positioning pins 25 is fixedly connected to the upper end of the workbench 11, the outer surface of a group of positioning pins 25 is sleeved with a mold body 26, the two first clamping blocks 15 are located on both sides of the mold body 26, the mold body 26 is installed on the upper end of the workbench 11 before the plastic gear is produced and processed, and the mold body 26 is installed and used in the production of plastic gear products by the mold closing and extruding method. When the mold body 26 is installed and used, the bottom of the mold body 26 is aligned with the surface of a group of positioning pins 25 to serve as a preliminary positioning purpose. In order to reduce the bumping damage to the surface of the mold body 26, the inner hole size of the mold body 26 is usually larger than the surface size of the positioning pin 25. Therefore, when the installation state of the mold body 26 does not reach the accurately positioned position, the first clamping blocks 15 on both sides are slidably arranged to be clamped and fixed on the surface of the mold body 26. The first clamping blocks 15 on both sides are synchronously slid to have an automatic centering effect, the mold body 26 is clamped and fixed on the upper end of the workbench 11, and the mold body 26 is fixedly installed on the upper end of the workbench 11 by rotating a plurality of bolts. A group of positioning pins 25 serve as a pre-positioning before installation operation, two first clamping blocks 15 are clamped on the surface of the mold body 26 to ensure that it is stably installed in the installation position, without the need for additional time to adjust the position of the mold body 26 for positioning during installation, thereby improving the convenience of installation and positioning, avoiding slight deviation during installation of the mold body 26 affecting the installation stability, and thereby improving the stability of the mold body 26 during production.

[0034] In view of the problems in the prior art, the utility model provides a plastic gear mould convenient to position, when installing and positioning, starting drive motor 17, drive motor 17 output shaft drives bidirectional screw rod 12 to rotate, the screw rotation direction of bidirectional screw rod 12 is opposite, through the rotation of bidirectional screw rod 12, two sliding blocks 13 are driven to slide synchronously towards the center of workbench 11, two sliding blocks 13 drive first clamping block 15 to slide and clamp through support seat 14, before first clamping block 15 and mould surface adhere, the surface of second clamping block 16 adheres to the surface of mould and extrudes second clamping block 16 to rotate, through two rotating second clamping blocks 16 adhering to the corner connecting place of mould, the area of adhering place is increased, through four second clamping blocks 16 adhering to the four corner places of mould surface, when clamping, the displacement of mould due to slight deviation is avoided, the stability of clamping is further improved, and the stable positioning operation is ensured.

[0035] Working principle:

[0036] Firstly, before the production and processing of the plastic gear, the mould body 26 is installed on the upper end of the workbench 11, and the plastic gear product is produced by the mould closing and extruding mode, when the mould body 26 is installed and used, the bottom of the mould body 26 is aligned with the surface of a group of positioning pins 25, so as to achieve the purpose of preliminary positioning, in order to reduce the bumping damage to the surface of the mould body 26, the inner hole size of the mould body 26 is usually larger than the surface size of the positioning pin 25, therefore, when the installation state of the mould body 26 does not reach the accurate positioning position, the first clamping block 15 arranged on both sides is slid and clamped on the surface of the mould body 26 to clamp and fix the same, the first clamping block 15 on both sides is slid synchronously and has the function of automatic centering, the mould body 26 is clamped and fixed on the upper end of the workbench 11, at this time, the mould body 26 is fixed and installed on the upper end of the workbench 11 through a plurality of bolts, a group of positioning pins 25 are used for pre-positioning before installation operation, and the two first clamping blocks 15 are clamped on the surface of the mould body 26 to ensure that it is stably installed in the installation position, so that the time for adjusting the position of the mould body 26 for positioning during installation is saved, the convenience of installation and positioning is improved, the slight deviation of the mould body 26 during installation operation is avoided, the stability of the mould body 26 during production is improved, and the stability of the mould body 26 during production is improved.

[0037] In the second step, when the installation positioning operation is performed, the driving motor 17 is started, the output shaft of the driving motor 17 drives the bidirectional threaded rod 12 to rotate, the two threads of the bidirectional threaded rod 12 rotate in opposite directions, the bidirectional threaded rod 12 drives the two sliding blocks 13 to slide synchronously towards the center of the workbench 11, the two sliding blocks 13 drive the first clamping block 15 to slide for clamping operation through the support seat 14, before the first clamping block 15 is attached to the surface of the mold (the overall size of the first clamping block 15 is designed to be larger than the size of the surface of the mold, the two rotating second clamping blocks 16 are located on the edge surface of the mold, the edge of the mold is attached to half the size of the surface of the second clamping block 16 on the same horizontal line in the attached state, the surface of the second clamping block 16 protrudes more than the surface of the first clamping block 15, when the first clamping block 15 slides, the mold is first in contact with the surface of the second clamping block 16), the surface of the mold is attached to the surface of the second clamping block 16 and extrudes the second clamping block 16 to rotate, the two rotating second clamping blocks 16 are attached to the connecting positions of the corners of the mold (i.e. the connecting positions of every two edges of the outer surface of the mold), the area of the attached positions is increased, the four second clamping blocks 16 are attached to the four corners of the surface of the mold, so that the mold does not displace when extruded due to slight displacement during clamping operation, the stability of clamping is further improved, the stable positioning operation is ensured, the shaft deviation, radial deviation and angular deviation that may exist during installation are compensated by the shaft coupling 19 sleeved on the center of the bidirectional threaded rod 12, so that the transmission system can run smoothly, the control box 18 is installed on the surface of the workbench 11, the control box 18 is in communication with the driving motor 17, the staff can control the start-stop and forward-reverse rotation of the driving motor 17 by pressing the control box 18 during use, when the first clamping block 15 is attached to the surface of the mold for clamping work, the first clamping block 15 is connected to the round rod 21 on the surface and slides in the support seat 14 when it is extruded and attached, the spring 22 installed on the surface of the first clamping block 15 and the support seat 14 is extruded when the first clamping block 15 slides, so as to play a buffering role, the buffering of the spring 22 makes the contact between the first clamping block 15 and the mold more stable, avoids the position deviation caused by instantaneous violent collision, and improves the stability of clamping, so that the more stable clamping force is conducive to reducing the risk of damage to the mold.

[0038] Finally, it should be noted that: obviously, the above embodiments are only examples for clearly illustrating the utility model, and are not limitations on the embodiments. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the embodiments. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A plastic gear mold facilitating positioning, comprising a workbench (11), a bidirectional threaded rod (12) is rotatably connected inside the workbench (11), characterized in that, The outer surface of the bidirectional threaded rod (12) is threadedly connected with two sliding blocks (13), the upper end of each of the two sliding blocks (13) is fixedly connected with a support seat (14), the outer surface of each of the two support seats (14) is slidably connected with a first clamping block (15), and the interior of each of the two first clamping blocks (15) is rotatably connected with a group of second clamping blocks (16); Wherein, the workbench (11) is fixedly connected with a drive mechanism on one side; The drive mechanism comprises a drive motor (17), and the drive motor (17) is fixedly connected on one side of the workbench (11).

2. A plastic gear mold for facilitating positioning as recited in claim 1, wherein, The bidirectional threaded rod (12) is sleeved on the outer surface of the drive motor (17); Wherein, the outer surface of the workbench (11) is fixedly connected with a control box (18), and the drive motor (17) and the control box (18) are connected in communication.

3. A plastic gear mold facilitating positioning as claimed in claim 2, wherein, The bidirectional threaded rod (12) is sleeved with a shaft coupling (19) inside; Wherein, the outer surface of each of the two first clamping blocks (15) is fixedly connected with a group of round rods (21).

4. A plastic gear mold for facilitating positioning as recited in claim 3 wherein, The outer surface of each of the two groups of round rods (21) is sleeved with a spring (22). Wherein, two groups of the spring (22) are respectively sleeved on the outer surface of the two support seats (14).

5. A plastic gear mold for facilitating positioning as defined in claim 4 wherein, The outer surface of each of the two sliding blocks (13) is fixedly connected with a group of sliding blocks (23); Wherein, the workbench (11) is internally provided with two groups of sliding grooves (24), and the two groups of sliding blocks (23) are respectively slidably connected in the two groups of sliding grooves (24).

6. A plastic gear mold for facilitating positioning as defined in claim 5 wherein, The upper end of the workbench (11) is fixedly connected with a group of positioning pins (25); Wherein, the outer surface of the group of positioning pins (25) is sleeved with a mold body (26), and the two first clamping blocks (15) are located on both sides of the mold body (26).

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