A new type of tensioning wheel machining positioning device
Patent Information
- Application Number
- CN202522137132.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-10
- Publication Date
- 2026-10-16
- Estimated Expiration
- 2035-10-10
AI Technical Summary
[0004]本实用新型提供一种新型张紧轮的加工定位装置，解决了目前的张紧轮加工装置在加工时定位不准、易安装错位的技术问题
1、本实用新型相比于传统的张紧轮加工装置，通过设置有定位组件、防错位块，本申请的优点在于：当下压座通过液压机构下压时，下压座将放置在模具座内的工件压铸成张紧轮，在这个过程中，通过定位组件的定位，使得工件不会被过度下压，其次，在将模具座安装在压铸台上时，防错位块能够有效提高模具座安装的精准性，避免安装错位，缩小加工误差，有效提高加工后张紧轮的质量。
Smart Images
Figure CN224855702U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tensioner processing technology, and in particular to a novel tensioner processing positioning device. Background Technology
[0002] The tensioner pulley ensures the chain is in its initial tensioned state, compensating for tensile deformation caused by tension and expansion / contraction due to temperature differences. It maintains adequate tension between the drive unit and the tensioner, and is typically located behind the drive unit at the point of minimum tension. After tensioning, there should be no significant descent under load. The tensioner operates using external engine oil supply, reducing timing chain amplitude and transmission noise. Excess oil leaks out of the assembly through the clearance between the plunger and the housing bore, serving as overpressure protection and lubrication for the system.
[0003] Existing tensioning wheels are usually formed by die casting during the manufacturing process. However, misalignment can easily occur when the die casting mold is fixed, resulting in poor quality tensioning wheels after die casting. In addition, inaccurate positioning during die casting can also cause die casting deviation. Therefore, we propose a new type of tensioning wheel processing and positioning device to solve the above problems. Utility Model Content
[0004] This utility model provides a novel tensioning wheel processing and positioning device, which solves the technical problems of inaccurate positioning and easy misalignment during the processing of current tensioning wheel processing devices.
[0005] To solve the above-mentioned technical problems, this utility model provides a novel processing and positioning device for tensioning wheels, including a die-casting table and a lower pressure seat. A reset guide mechanism is provided between the die-casting table and the lower pressure seat, and a positioning component is provided between the die-casting table and the lower pressure seat. A mold seat is detachably provided on the die-casting table, and an anti-misalignment block is provided on the mold seat.
[0006] Preferably, the positioning component includes a concave groove formed on the lower pressure seat and a positioning post provided at the bottom of the lower pressure seat.
[0007] Preferably, the mold base is fixed to the die-casting table by bolts.
[0008] Preferably, the mold base is provided with mounting blocks, and three mounting blocks are provided. Each mounting block has a first fixing hole, and the bolt passes through the first fixing hole to fix the mounting block to the die casting table.
[0009] Preferably, three anti-misalignment blocks are provided, and each anti-misalignment block has a second fixing hole. The bolt passes through the second fixing hole to fix the anti-misalignment block to the die-casting platform.
[0010] Preferably, the three mounting blocks are arranged in a triangular three-point structure on the die-casting platform.
[0011] Preferably, the three anti-misalignment blocks are distributed in a triangular three-point structure on the die-casting platform.
[0012] Preferably, the mold base has a die-casting groove adapted to the lower pressure seat.
[0013] Preferably, the mold base also has a hollow hole that communicates with the die-casting table.
[0014] Compared with related technologies, this utility model has the following beneficial effects: 1. Compared with traditional tensioning wheel processing devices, this utility model has the following advantages by setting up positioning components and anti-misalignment blocks: When the pressing seat is pressed down by the hydraulic mechanism, the pressing seat will die-cast the workpiece placed in the mold seat into a tensioning wheel. During this process, the positioning components will prevent the workpiece from being excessively pressed down. Secondly, when the mold seat is installed on the die-casting table, the anti-misalignment blocks can effectively improve the accuracy of the mold seat installation, avoid installation misalignment, reduce processing errors, and effectively improve the quality of the tensioning wheel after processing.
[0015] 2. In this utility model, by setting hollow holes, i.e. hollow design, aluminum chips can be discharged smoothly after processing, preventing aluminum chips generated during processing from jamming the mold base. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of a new type of tensioning wheel machining and positioning device; Figure 2 This is a cross-sectional structural diagram of the positioning component in a novel tensioning wheel machining and positioning device; Figure 3 This is a schematic diagram of the mold base in a new type of tensioning wheel machining positioning device; Figure 4 This is a schematic diagram showing the positional structure of the mounting block and anti-misalignment block on the mold base in a new type of tensioning wheel machining positioning device.
[0017] The following are the labels in the diagram: 1. Die-casting table; 2. Lower pressure seat; 3. Reset guide mechanism; 4. Positioning component; 41. Positioning column; 42. Concave groove; 5. Mold seat; 51. Die-casting groove; 52. Hole; 6. Mounting block; 61. First fixing hole; 7. Anti-misalignment block; 71. Second fixing hole. Detailed Implementation
[0018] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0019] Example 1 like Figures 1-4 As shown, a new type of tensioning wheel processing and positioning device includes a die-casting table 1 and a lower pressure seat 2. A reset guide mechanism 3 is provided between the die-casting table 1 and the lower pressure seat 2. A positioning component 4 is provided between the die-casting table 1 and the lower pressure seat 2. A mold seat 5 is detachably provided on the die-casting table 1. An anti-misalignment block 7 is provided on the mold seat 5. A reset guide mechanism 3 is provided between the die-casting table 1 and the lower pressure seat 2. An external hydraulic mechanism applies downward pressure to the lower pressure seat 2, causing it to press against the die-casting table 1. The workpiece is made of aluminum. The workpiece to be die-cast is placed on the mold base 5, and a tensioning wheel is formed through die casting. This is the processing procedure for the tensioning wheel. The reset guide mechanism 3 is existing technology, consisting of a guide post, a spring, and a guide sleeve. A positioning assembly 4 is provided between the die-casting table 1 and the lower pressure seat 2. The mold base 5 is detachably mounted on the die-casting table 1. The upper part is provided with an anti-misalignment block 7. With the positioning component 4 and the anti-misalignment block 7, the advantages of this application are as follows: When the lower pressing seat 2 is pressed down by the hydraulic mechanism, the lower pressing seat 2 will die-cast the workpiece placed in the mold seat 5 into a tensioning wheel. In this process, the positioning component 4 will prevent the workpiece from being excessively pressed down. Secondly, when the mold seat 5 is installed on the die-casting table 1, the anti-misalignment block 7 can effectively improve the installation accuracy of the mold seat 5, avoid installation misalignment, reduce processing errors, and effectively improve the quality of the tensioning wheel after processing.
[0020] Example 2 like Figure 1 , Figure 2 As shown, the positioning component 4 includes a concave groove 42 opened on the lower pressure seat 2 and a positioning post 41 provided at the bottom of the lower pressure seat 2. When the lower pressure seat 2 is pressed down, when the bottom of the positioning post 41 contacts the bottom of the concave groove 42, it indicates that the die casting has been completed, thus avoiding the workpiece being over-processed and die-cast, thereby damaging the quality of the tensioning wheel formed by die casting. like Figure 1 , Figure 2 As shown, the mold base 5 is fixed to the die casting table 1 by bolts. In this embodiment, the mold base 5 is fixed to the die casting table 1 by bolts. Of course, it can also be fixed by welding, riveting or other methods. like Figure 3As shown, the mold base 5 is provided with mounting blocks 6. There are three mounting blocks 6. The mounting blocks 6 have first fixing holes 61. Bolts pass through the first fixing holes 61 to fix the mounting blocks 6 on the die casting table 1, which is convenient for disassembly and installation. like Figure 3 As shown, three anti-displacement blocks 7 are provided. A second fixing hole 71 is provided on the anti-displacement block 7. Bolts pass through the second fixing hole 71 to fix the anti-displacement block 7 to the die-casting table 1, which is convenient for disassembly and installation. like Figure 4 As shown, the three mounting blocks 6 are distributed in a triangular three-point structure on the die-casting table 1, and the three anti-misalignment blocks 7 are distributed in a triangular three-point structure on the die-casting table 1. This structural design makes the mold base 5 more precise and stable after installation and fixing. When die-casting the workpiece, there will be no installation misalignment, minimizing installation error to the greatest extent. like Figure 3 As shown, the mold base 5 is provided with a die casting groove 51 that is adapted to the lower pressure seat 2. The die casting groove 51 makes it easy for the die-cast workpiece to take the shape of a tensioning wheel. The mold base 5 is also provided with a hollow hole 52 that is connected to the die casting table 1. When the workpiece is die-cast, there will be some debris. These debris can be manually discharged through the hollow hole 52.
[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A novel machining and positioning device for a tensioning wheel, comprising a die-casting table (1) and a lower pressure seat (2), wherein a reset guide mechanism (3) is provided between the die-casting table (1) and the lower pressure seat (2), characterized in that, A positioning component (4) is provided between the die-casting table (1) and the lower pressure seat (2). A mold seat (5) is detachably provided on the die-casting table (1), and an anti-misalignment block (7) is provided on the mold seat (5).
2. The novel tensioning wheel machining and positioning device according to claim 1, characterized in that, The positioning component (4) includes a concave groove (42) opened on the lower pressure seat (2) and a positioning post (41) provided at the bottom of the lower pressure seat (2).
3. The novel tensioning wheel machining and positioning device according to claim 1, characterized in that, The mold base (5) is fixed to the die-casting table (1) by bolts.
4. The novel tensioning wheel machining and positioning device according to claim 3, characterized in that, The mold base (5) is provided with mounting blocks (6), and three mounting blocks (6) are provided. The mounting blocks (6) are provided with first fixing holes (61). The bolt passes through the first fixing holes (61) to fix the mounting blocks (6) on the die casting table (1).
5. The novel tensioning wheel machining and positioning device according to claim 1, characterized in that, Three anti-misalignment blocks (7) are provided. A second fixing hole (71) is provided on the anti-misalignment block (7). The bolt passes through the second fixing hole (71) to fix the anti-misalignment block (7) on the die-casting table (1).
6. The novel tensioning wheel machining and positioning device according to claim 4, characterized in that, The three mounting blocks (6) are distributed in a triangular three-point structure on the die-casting table (1).
7. The novel tensioning wheel machining and positioning device according to claim 5, characterized in that, The three anti-misalignment blocks (7) are distributed in a triangular three-point structure on the die-casting table (1).
8. The novel tensioning wheel machining and positioning device according to claim 1, characterized in that, The mold base (5) is provided with a die-casting groove (51) that is compatible with the lower pressure seat (2).
9. The novel tensioning wheel machining and positioning device according to claim 1, characterized in that, The mold base (5) is also provided with a hollow hole (52) that communicates with the die casting table (1).