Fixing device for clamping synchronous belt die

By designing slots, blocks, and connectors, and combining tension rods and fastening nuts, the problem of fixing the timing belt mold when machining toothed structures is solved, enabling precise machining of the timing belt mold and avoiding shaft deformation.

CN224209816UActive Publication Date: 2026-05-08WUXI SHUANGXIAO MOULD MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI SHUANGXIAO MOULD MFG CO LTD
Filing Date
2025-06-12
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

The timing belt mold is difficult to fix when processing toothed structures, which leads to shaft deformation and affects accuracy.

Method used

The design employs a combination of slots and blocks, connecting to the gear hobbing machine via a connector. The cover plate is secured using a tension rod and a fastening nut, preventing movement between the synchronous belt mold body and the cover plate and ensuring that the shaft does not deform.

Benefits of technology

This improved the machining accuracy of the timing belt mold, prevented deformation of the shaft during the machining of the tooth structure, and ensured the precision of the timing belt mold.

✦ Generated by Eureka AI based on patent content.

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Abstract

The fixing device comprises a synchronous belt mold body, a cover plate and a tensioning rod, the inner wall of the synchronous belt mold body is provided with a clamping groove, the side wall of the cover plate is provided with a clamping block matched with the clamping groove, the side wall of the cover plate is provided with a protective cylinder and a connector arranged at the outer end opening of the protective cylinder, and the clamping block is arranged on the outer end opening of the protective cylinder. According to the synchronous belt mold, the clamping groove is formed so that the synchronous belt mold can be conveniently matched with the clamping block, the clamping block can be conveniently clamped into the synchronous belt mold, the clamping block plays a role in limiting during rotation, relative movement between the synchronous belt mold body and the cover plate is avoided, and the synchronous belt mold can be conveniently clamped into the cover plate. Through the arrangement of the connector, in the process that the gear hobbing machine is used for machining the synchronous belt mold body, the shaft part of the synchronous belt mold body is replaced to be connected with the gear hobbing machine, and the situation that the shaft body of the synchronous belt mold body deforms when teeth are machined, and the accuracy of the synchronous belt mold body is affected is avoided.
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Description

Technical Field

[0001] This utility model relates to a timing belt mold fixing device, specifically a timing belt mold clamping fixing device. Background Technology

[0002] Synchronous belts are generally widely used in equipment power transmission. They are characterized by accurate and stable transmission. Synchronous belts operate without slippage and have a constant transmission ratio. The inner circumference of the synchronous belt is toothed. Synchronous belt molds are required during production. The outer surface of the mold is machined into a tooth shape. The quality of the teeth machined on the mold directly affects the quality of the synchronous belt. When performing gear hobbing on the mold, it is difficult to fix the mold in place. Solving this problem becomes crucial.

[0003] Existing solutions typically use a fixture to clamp the shaft of the timing belt mold. However, when machining the teeth of the timing belt mold, the large force applied can easily cause deformation of the shaft, affecting the accuracy of the timing belt mold. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] In view of the problems existing in the use of the above and / or timing belt mold clamping fixing device, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a fixing device for clamping synchronous belt molds. The slot design facilitates the cooperation with the locking block, making it easy for the locking block to engage. During rotation, the locking block acts as a limit, preventing relative movement between the synchronous belt mold body and the cover plate, thus ensuring synchronization. The connector replaces the shaft of the synchronous belt mold body when the synchronous belt mold body is processed by the gear hobbing machine, preventing deformation of the shaft during gear cutting and affecting the accuracy of the synchronous belt mold body. The tension rod is locked with a fastening nut, pressing the cover plate firmly against the end of the synchronous mold body to prevent loosening.

[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0008] A timing belt mold clamping and fixing device, comprising:

[0009] The main body of the timing belt mold has a groove on its inner wall;

[0010] A cover plate, wherein the side wall of the cover plate is provided with a locking block that mates with a locking groove, and the side wall of the cover plate is provided with a protective cylinder and a connector located at the outer port of the protective cylinder;

[0011] A tensioning rod passes through the inside of the synchronous belt mold body, and fastening nuts are respectively provided at both ends of the tensioning rod to press against the side wall of the cover plate.

[0012] As a preferred embodiment of the timing belt mold clamping and fixing device of the present invention, the shaft portion of the timing belt mold body is provided with a shaft rod, and the shaft rod is fixedly connected to the inner wall of the timing belt mold body through a connecting rod.

[0013] As a preferred embodiment of the timing belt mold clamping and fixing device described in this utility model, the side wall of the cover plate is provided with an anti-slip layer, and the anti-slip layer is in close contact with the end face of the timing belt mold body.

[0014] As a preferred embodiment of the timing belt mold clamping and fixing device described in this utility model, the side wall of the cover plate is provided with an adjustment groove, and the two ends of the tensioning rod extend out from the adjustment groove respectively.

[0015] As a preferred embodiment of the timing belt mold clamping and fixing device described in this utility model, the two ends of the tensioning rod are respectively provided with external threads, and the fastening nut is engaged with the external threads.

[0016] As a preferred embodiment of the timing belt mold clamping and fixing device described in this utility model, a limiting nut is provided on the top of the fastening nut, and the limiting nut is engaged with the external thread.

[0017] As a preferred embodiment of the timing belt mold clamping and fixing device described in this utility model, the shaft portion of the connector is provided with a hexagonal slot.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: This kind of timing belt mold clamping and fixing device facilitates the cooperation with the locking block through the setting of the slot, making it easy for the locking block to be inserted. When rotating, the locking block plays a limiting role, preventing relative movement between the timing belt mold body and the cover plate, thus providing synchronization. Through the setting of the connector, during the processing of the timing belt mold body using the gear hobbing machine, it replaces the shaft of the timing belt mold body and connects to the gear hobbing machine, preventing the shaft of the timing belt mold body from deforming during the processing of the teeth, which would affect the accuracy of the timing belt mold body. The tensioning rod is locked with a fastening nut, pressing the cover plate tightly at the end of the timing mold body to prevent loosening. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1 This is a schematic diagram of the overall structure of a timing belt mold clamping and fixing device according to the present invention;

[0021] Figure 2 This is an exploded structural diagram of a timing belt mold clamping and fixing device according to the present invention;

[0022] Figure 3 This utility model relates to a fixing device for clamping synchronous belt molds. Figure 2 A schematic diagram of part a in the middle.

[0023] 100. Synchronous belt mold body; 110. Shaft; 120. Slot; 200. Cover plate; 201. Adjustment groove; 210. Locking block; 220. Protective cylinder; 230. Connector; 300. Tensioning rod; 310. Fastening nut; 320. Limit nut. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure will not be enlarged to scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0027] This utility model provides a fixing device for clamping a synchronous belt mold. The slot design facilitates the engagement of the locking block, allowing it to be easily engaged. During rotation, the locking block acts as a limit, preventing relative movement between the synchronous belt mold body and the cover plate, thus ensuring synchronization. The connector replaces the shaft of the synchronous belt mold body during gear hobbing, preventing deformation of the shaft during tooth cutting and ensuring the accuracy of the mold body. The tension rod is locked with a fastening nut, pressing the cover plate firmly against the end of the synchronous belt mold body to prevent loosening.

[0028] Figures 1-3 The diagram shown is a structural schematic of one embodiment of the timing belt mold clamping and fixing device of this utility model. Please refer to [link / reference]. Figures 1-3 The present embodiment of a timing belt mold clamping and fixing device includes a timing belt mold body 100, a cover plate 200 and a tensioning rod 300.

[0029] The synchronous belt mold body 100 is designed with a slot 120 to facilitate cooperation with the locking block 210, allowing the locking block 210 to be easily engaged. During rotation, the locking block 210 acts as a limit, preventing relative movement between the synchronous belt mold body 100 and the cover plate 200, thus providing synchronization. Specifically, the inner wall of the synchronous belt mold body 100 is provided with a slot 120. In this embodiment, the shaft of the synchronous belt mold body 100 is provided with a shaft rod, which is fixedly connected to the inner wall of the synchronous belt mold body 100 through a connecting rod.

[0030] The cover plate 200, through the connection head 230, replaces the shaft of the synchronous belt mold body 100 in the process of machining the synchronous belt mold body 100 using a gear hobbing machine. This prevents the shaft 110 of the synchronous belt mold body 100 from deforming during gear cutting, thus affecting the accuracy of the synchronous belt mold body 100. Specifically, the side wall of the cover plate 200 is provided with a locking block 210 that mates with the locking groove 120. The side wall of the cover plate 200 is provided with a protective cylinder 220 and a connection head 230 located at the outer port of the protective cylinder 220. In this embodiment, the side wall of the cover plate 200 is provided with an anti-slip layer that is in close contact with the end face of the synchronous belt mold body 100. The side wall of the cover plate 200 is provided with an adjustment groove 201. The two ends of the tension rod 300 extend from the adjustment groove 201 respectively. The shaft of the connection head 230 is provided with a hexagonal slot.

[0031] The tension rod 300 is locked in place by the fastening nut 310, pressing the cover plate 200 against the port of the synchronous mold body to prevent loosening. Specifically, the tension rod 300 passes through the inside of the synchronous belt mold body 100, and fastening nuts 310 are respectively provided at both ends of the tension rod 300 to press against the side wall of the cover plate 200. In this embodiment, external threads are provided at both ends of the tension rod 300, and the fastening nut 310 engages with the external threads. A limit nut 320 is provided at the top of the fastening nut 310, and the limit nut 320 engages with the external threads.

[0032] Combination Figures 1-3 The specific usage process of the timing belt mold clamping and fixing device of this embodiment is as follows: the slot 120 is set to facilitate cooperation with the locking block 210, making it easy for the locking block 210 to be inserted. During rotation, the locking block 210 plays a limiting role, preventing relative movement between the timing belt mold body 100 and the cover plate 200, thus providing synchronization. The connector 230 is set to replace the shaft of the timing belt mold body 100 and connect to the gear hobbing machine during the processing of the timing belt mold body 100 using a gear hobbing machine, preventing the shaft 110 of the timing belt mold body 100 from deforming during the processing of the teeth, which would affect the accuracy of the timing belt mold body 100. The tension rod 300 is locked with the fastening nut 310, pressing the cover plate 200 tightly at the end of the timing mold body to prevent loosening.

[0033] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A fixing device for clamping synchronous belt molds, characterized in that, include: Synchronous belt mold body (100), the inner wall of the synchronous belt mold body (100) is provided with a slot (120); The cover plate (200) has a side wall provided with a locking block (210) that cooperates with the slot (120), and the side wall of the cover plate (200) is provided with a protective cylinder (220) and a connector (230) provided at the outer port of the protective cylinder (220). A tension rod (300) passes through the inside of the synchronous belt mold body (100), and both ends of the tension rod (300) are respectively provided with fastening nuts (310) that press against the side wall of the cover plate (200).

2. The fixing device for clamping a timing belt mold according to claim 1, characterized in that, The shaft of the synchronous belt mold body (100) is provided with a shaft rod, which is fixedly connected to the inner wall of the synchronous belt mold body (100) through a connecting rod.

3. The fixing device for clamping a timing belt mold according to claim 2, characterized in that, The side wall of the cover plate (200) is provided with an anti-slip layer, which is in close contact with the end face of the synchronous belt mold body (100).

4. The fixing device for clamping a timing belt mold according to claim 3, characterized in that, The side wall of the cover plate (200) is provided with an adjustment groove (201), and the two ends of the tension rod (300) extend out from the adjustment groove (201).

5. The fixing device for clamping a timing belt mold according to claim 4, characterized in that, The tension rod (300) has external threads at both ends, and the fastening nut (310) engages with the external threads.

6. The fixing device for clamping a timing belt mold according to claim 5, characterized in that, The top of the fastening nut (310) is provided with a limiting nut (320), which engages with the external thread.

7. A fixing device for clamping a timing belt mold according to claim 6, characterized in that, The shaft portion of the connector (230) is provided with a hexagonal slot.