Heavy high-precision positioning mechanism

Abstract

The utility model relates to tool positioning technical field, and disclose a kind of heavy high-precision positioning mechanism, including lower tool main part, the middle part of lower tool main part is inserted with lower sleeve shaft, the top of lower tool main part is provided with sleeve pressing block, the top of lower sleeve shaft is resisted by sleeve pressing block, sleeve ring is sleeved on sleeve pressing block, the middle part of lower tool main part bottom is provided with sleeve shaft anti-rotation block, the utility model is inserted with lower sleeve shaft by being provided with lower tool main part, the top of lower tool main part is limited fixed by the sleeve pressing block and sleeve ring being set, and the bottom of lower tool main part is set with sleeve shaft anti-rotation block and lower tool pad plate, the bottom of lower sleeve shaft is limited again, so that the insertion of lower sleeve shaft in lower tool main part is more accurate, and the positioning accuracy of lower tool main part to workpiece is higher, to facilitate subsequent installation operation to be unfolded.

Description

Technical Field

[0001] This utility model relates to the field of tooling positioning technology, specifically a heavy-duty high-precision positioning mechanism. Background Technology

[0002] In modern industrial production, engineering construction, and heavy equipment operation and maintenance, the positioning accuracy of heavy equipment (such as large CNC machine tools, heavy cranes, port quay cranes, and tunnel boring machines) directly determines operational efficiency, product quality, and construction safety. This type of heavy equipment is generally characterized by its large size, heavy weight (typically tens to hundreds of tons), and high inertia. Its positioning requirements not only demand millimeter-level or even sub-millimeter-level accuracy but also excellent stability, anti-interference capabilities, and long-term operational reliability to adapt to complex industrial environments (such as vibration, dust, temperature fluctuations, and electromagnetic interference).

[0003] Existing positioning mechanisms for heavy equipment are mainly based on mechanical transmission structures, such as ball screws or rack and pinion gears. These methods are mostly complex in structure, cumbersome in operation, and have poor positioning accuracy, making it difficult to meet users' needs for high-precision positioning in heavy equipment. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a heavy-duty high-precision positioning mechanism, which solves the problem that existing positioning mechanisms for heavy equipment are mainly based on mechanical transmission structures, such as ball screws or gear racks. These methods are mostly complex in structure, cumbersome in operation, and have poor positioning accuracy, making it difficult to meet users' needs for heavy-duty high-precision positioning.

[0005] This utility model provides the following technical solution: a heavy-duty high-precision positioning mechanism, including a lower tooling body, a lower account sleeve shaft inserted in the middle of the lower tooling body, an account sleeve pressing block at the top of the lower tooling body, the account sleeve pressing block abutting against the top of the lower account sleeve shaft, an account sleeve ring sleeved on the account sleeve pressing block, an account sleeve shaft anti-rotation block at the middle of the bottom end of the lower tooling body, the account sleeve shaft anti-rotation block being arranged around the lower account sleeve shaft, and a lower tooling pad being arranged on the bottom side of the account sleeve shaft anti-rotation block.

[0006] Preferred technical solution 1: An airtight hole is provided on the outer side of the bottom end of the lower tooling body.

[0007] This solution allows users to check the fit between the workpiece and the tooling body through airtight holes.

[0008] Preferred technical solution 2: The bottom end of the lower sleeve shaft is connected to an installation block.

[0009] Preferred technical solution 3: The mounting block has mounting holes evenly distributed around its perimeter.

[0010] This solution makes it easier for users to install the installation blocks.

[0011] Preferred technical solution four: A connecting screw is provided at the middle of the top of the account set pressure block, and the bottom end of the connecting screw is inserted into the top of the lower account set shaft.

[0012] This solution enables the top of the lower shaft to be fixed in a limited position.

[0013] Compared with the prior art, this utility model provides a heavy-duty high-precision positioning mechanism with the following advantages: This utility model provides a lower sleeve shaft on the lower tooling body. The top of the lower sleeve shaft is limited and fixed by a sleeve pressing block and a sleeve ring at the top of the lower tooling body. The bottom of the lower sleeve shaft is further limited by a sleeve shaft anti-rotation block and a lower tooling pad at the bottom of the lower tooling body. This makes the insertion of the lower sleeve shaft in the lower tooling body more precise and the positioning accuracy of the lower tooling body for the workpiece higher, so as to facilitate subsequent installation operations. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0015] Figure 2 This is a schematic cross-sectional view of the structure of this utility model;

[0016] Figure 3 For the present utility model Figure 2 Enlarged view of the structure of the central ledger block;

[0017] Figure 4 This is a top view of the structure of this utility model.

[0018] In the diagram: 1. Lower tooling body; 2. Lower accounting sleeve shaft; 3. Accounting sleeve pressing block; 4. Accounting sleeve ring; 5. Lower accounting sleeve shaft anti-rotation block; 6. Lower tooling pad. Detailed Implementation

[0019] Please see Figure 1-4 ,

[0020] Example 1: A heavy-duty high-precision positioning mechanism includes a lower tooling body 1, a lower account sleeve shaft 2 inserted in the middle of the lower tooling body 1, an account sleeve pressing block 3 at the top of the lower tooling body 1, the account sleeve pressing block 3 abutting against the top of the lower account sleeve shaft 2, an account sleeve ring 4 sleeved on the account sleeve pressing block 3, an account sleeve shaft anti-rotation block 5 at the middle of the bottom end of the lower tooling body 1, the account sleeve shaft anti-rotation block 5 is arranged around the lower account sleeve shaft 2, and a lower tooling pad 6 is arranged on the bottom side of the account sleeve shaft anti-rotation block 5.

[0021] An airtight hole is provided on the outer side of the bottom end of the lower tooling body 1.

[0022] Example 2: The difference between this example and Example 1 is that the bottom end of the lower shaft 2 is connected to an installation block.

[0023] Example 3: The difference between this example and Example 1 is that the mounting block has mounting holes evenly distributed around its perimeter.

[0024] This makes it easier for users to install the installation blocks.

[0025] Example 4: The difference between this example and Example 1 is that a connecting screw is provided at the middle of the top of the account set pressure block 3, and the bottom end of the connecting screw is inserted into the top of the lower account set shaft 2.

[0026] This ensures that the top end of the lower shaft 2 is fixed in place.

[0027] In this embodiment, since the existing positioning mechanisms of heavy equipment are mainly based on mechanical transmission positioning structures, such as using ball screws or gear racks for transmission positioning, these methods are mostly complex in structure, cumbersome in operation, and have poor positioning accuracy, making it difficult to meet the user's heavy-duty high-precision positioning needs.

[0028] In summary, during implementation, when users need to position heavy parts using a positioning fixture, they first need to use a hydraulic cylinder to press down, and use a pull rod to press the spring clamp to make the workpiece fit against the lower fixture body 1. The lower fixture body 1 also has airtight holes, which are used to check the fit of the workpiece. The user then places the workpiece on the lower fixture body 1. A lower sleeve shaft 2 is set in the middle of the lower fixture body 1, which passes through the middle of the lower fixture body 1 and the middle of the workpiece. The sleeve pressing block 3 set at the top of the lower fixture body 1 presses against the top of the lower sleeve shaft 2, and the sleeve ring 4 set on the sleeve pressing block 3 improves the sealing between the sleeve pressing block 3 and the lower fixture body 1.

[0029] This makes the top limit of the lower account sleeve shaft 2 more stable by the pressure block 3. In the middle of the bottom of the lower tooling body 1, there is also an anti-rotation block 5 for the account sleeve shaft and a lower tooling pad 6. Both the anti-rotation block 5 and the lower tooling pad 6 are set on the side of the lower account sleeve shaft 2. The anti-rotation block 5 can effectively prevent the lower account sleeve shaft 2 from rotating, and the lower tooling pad 6 can limit the lower account sleeve shaft 2 from passing through the bottom of the lower tooling body 1. This allows the workpiece to be positioned with high precision on the lower tooling body 1, so as to facilitate the subsequent installation operation.

Claims

1. A heavy-duty high-precision positioning mechanism, comprising a lower tooling body (1), characterized in that: The lower tooling body (1) is provided with a lower account sleeve shaft (2) inserted in the middle. The lower tooling body (1) is provided with an account sleeve pressing block (3) at the top. The account sleeve pressing block (3) abuts against the top of the lower account sleeve shaft (2). An account sleeve ring (4) is fitted on the account sleeve pressing block (3). An account sleeve shaft anti-rotation block (5) is provided in the middle of the bottom end of the lower tooling body (1). The account sleeve shaft anti-rotation block (5) is arranged around the lower account sleeve shaft (2). A lower tooling pad (6) is provided on the bottom side of the account sleeve shaft anti-rotation block (5).

2. The heavy-duty high-precision positioning mechanism according to claim 1, characterized in that: An airtight hole is provided on the outer side of the bottom end of the lower tooling body (1).

3. The heavy-duty high-precision positioning mechanism according to claim 2, characterized in that: The bottom end of the lower shaft (2) is connected to an installation block.

4. The heavy-duty high-precision positioning mechanism according to claim 3, characterized in that: The mounting block has mounting holes evenly distributed around its perimeter.

5. The heavy-duty high-precision positioning mechanism according to claim 4, characterized in that: A connecting screw is provided at the middle of the top of the account set pressure block (3), and the bottom end of the connecting screw is inserted into the top of the lower account set shaft (2).

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