Auxiliary clamping and positioning tool for disc products

Abstract

The utility model provides an auxiliary clamping and positioning tool for disc type products. The auxiliary clamping and positioning tool comprises a product special tool, a rotating platform, a rotating shaft, a bearing fixing seat and a base which are sequentially arranged from top to bottom. A fixing seat embedding groove is formed in the upper surface of the base and is used for placing a bearing fixing seat; the rotating shaft is rotationally arranged on the bearing fixing seat through a bearing; a shaft embedding groove is formed in the lower surface of the rotating platform and is used for positioning and connecting a rotating shaft; the upper surface of the special tool for the product is provided with a coarse positioning molded surface matched with the product. According to the utility model, built-in meter calibration is improved into built-out meter calibration, so that the problems of inaccurate positioning accuracy and low clamping efficiency of built-in meter calibration are solved.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary tooling technology for machining, and in particular to an auxiliary clamping and positioning tooling for disc-shaped products. Background Technology

[0002] With the rapid development of modern technology, the production requirements for semiconductor equipment components have become higher, and the precision of various structures needs to be further improved.

[0003] For some complex and specialized products, such as disc-shaped products, effective positioning during milling and turning can significantly impact the machining results. The existing procedures for calibrating disc-shaped products are as follows:

[0004] Product installation - Securely mount disc-shaped products onto the lathe chuck;

[0005] Preliminary calibration - Install the dial indicator onto the spindle and adjust its orientation so that it is perpendicular to the part of the product to be measured. Adjust the dial indicator probe to contact the part to be measured and adjust the dial indicator reading to zero.

[0006] Measurement and Adjustment - Move the lathe spindle so that the dial indicator probe measures along the circumference of the product. Observe the changes in the reading to determine concentricity, and adjust the product position or clamping force until concentricity is achieved. In the existing method, because the dial indicator needs to be calibrated in the machine after each clamping, that is, to achieve effective positioning through multiple adjustments and finding the reference, the positioning calibration process is time-consuming, labor-intensive, and inefficient.

[0007] In addition, there are cases where multiple clamping attempts fail to achieve effective positioning. In such cases, a CNC machining center must be used to complete the machining and achieve the required precision, which seriously affects the production schedule.

[0008] Therefore, it is necessary to improve existing technologies and develop an auxiliary clamping and positioning tool that can solve these problems. Utility Model Content

[0009] This utility model provides an auxiliary clamping and positioning fixture for disc-shaped products to solve the above-mentioned problems.

[0010] One technical solution adopted by this utility model is to provide an auxiliary clamping and positioning fixture for disc-shaped products, including: a product-specific fixture, a rotating platform, a rotating shaft, a bearing fixing seat, and a base arranged sequentially from top to bottom;

[0011] The upper surface of the base is provided with a fixing seat embedding groove for placing a bearing fixing seat;

[0012] The rotating shaft is rotatably mounted on the bearing mounting seat via a bearing;

[0013] The lower surface of the rotating platform is provided with a shaft embedding groove for positioning and connecting the rotating shaft;

[0014] The upper surface of the product-specific tooling has a coarse positioning profile that is compatible with the product;

[0015] In use, place the auxiliary clamping and positioning fixture on a horizontal worktable, place the product on the product-specific fixture, calibrate it with a dial indicator and fix it in place, and then use a zero-point positioning fixture to put the product and the product-specific fixture into the machine for processing. The external calibration solves the problems of inaccurate positioning and low clamping efficiency of the internal calibration.

[0016] Furthermore, the rotating platform is also evenly distributed with several shims centered on the axis.

[0017] Furthermore, the gasket is a circular gasket with several upper positioning through holes, and the rotating platform is provided with corresponding lower positioning through holes. The two are connected by a pin for positioning. By changing the thickness of the gasket, the height of the product can be adjusted to adapt to the position of the calibration instrument.

[0018] Furthermore, the gasket is provided with a countersunk hole at its center, and the rotating platform is provided with a corresponding tapping hole, and the two are locked together by a countersunk screw.

[0019] Furthermore, the lower surface of the product-specific tooling has a positioning protrusion or positioning groove that matches the gasket, which facilitates assembly and ensures that it is coaxial with the rotating platform.

[0020] Furthermore, the bearing is a tapered roller bearing, ensuring smooth rotation and precise control during the calibration process.

[0021] The beneficial effects of this utility model's auxiliary clamping and positioning fixture for disc-shaped products are:

[0022] 1. Design auxiliary clamping and positioning fixtures to improve the in-machine calibration to an external calibration, thus solving the problems of inaccurate positioning and low clamping efficiency of in-machine calibration.

[0023] 2. The modular design and convenient assembly method in terms of structure simplify the clamping process and improve clamping efficiency. Attached Figure Description

[0024] Figure 1 This is a cross-sectional view of an auxiliary clamping and positioning tool for a disc-shaped product according to the first embodiment of this utility model;

[0025] Figure 2 This is a schematic diagram of an auxiliary clamping and positioning tool for a disc-shaped product according to the first embodiment of this utility model;

[0026] Figure 3 This is a schematic diagram of the rotating platform and the gasket in the first embodiment of this utility model;

[0027] Figure 4 This is a schematic diagram of the rotating platform in the first embodiment of this utility model;

[0028] The components in the attached diagram are labeled as follows: 1. Product-specific tooling, 2. Shim, 3. Rotary platform, 4. Rotary shaft, 5. Tapered roller bearing, 6. Bearing mounting seat, 7. Base, 8. Product, 21. Upper positioning through hole, 22. Countersunk hole, 31. Lower positioning through hole, 32. Tapping hole. Detailed Implementation

[0029] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0030] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "horizontal", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and should not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Please see Figures 1 to 4 The first embodiment of this utility model provides an auxiliary clamping and positioning fixture for disc-shaped products, comprising:

[0032] The base 7 has a fixed seat embedding groove on its upper surface for placing the bearing fixing seat 6, ensuring the stability and reliability of the entire tooling. When in use, the base 7 is placed on a horizontal workbench.

[0033] The bearing mounting base 6 is used to support the rotating shaft 4 and achieves a stable installation of the entire tooling through a fixed connection with the base 7.

[0034] Rotating shaft 4 is rotatably mounted on bearing seat 6 via tapered roller bearing 5 to ensure smoothness and accuracy during rotation.

[0035] The rotating platform 3 has a shaft embedding groove on its lower surface for positioning and connecting the rotating shaft 4. The rotating platform 3 also has three shims 2 evenly distributed around the shaft center. By replacing the shims 2 of different thicknesses, the height of the product can be adjusted to adapt to different processing requirements and calibration positions.

[0036] The gasket 2 is circular and has four upper positioning through holes 21. The rotating platform 3 has corresponding lower positioning through holes 31. The two are connected by a pin. The center of the gasket 2 also has a countersunk hole 22. The rotating platform 3 has a corresponding tapping hole 32. The two are locked together by a countersunk screw to ensure the stable installation of the gasket 2.

[0037] Product-specific tooling 1 has a coarse positioning surface on its upper surface that matches the product, and a positioning groove on its lower surface that matches the gasket 2, which facilitates assembly and ensures that it is coaxial with the rotating platform 3.

[0038] Specifically, the bearing mounting base 6 has a step at the bottom for embedding and connecting with the base 7, and is reinforced by bolts.

[0039] The method of using this auxiliary clamping and positioning fixture is as follows:

[0040] Place the auxiliary clamping and positioning fixture on the horizontal worktable;

[0041] Place product 8 on product-specific fixture 1, and determine the precise positioning of the product by using a dial indicator to calibrate concentricity. After calibration, fix the product and product-specific fixture 1.

[0042] Use a zero-point positioning fixture to place the product and product-specific tooling 1 together into the machine for processing.

[0043] in,

[0044] The corresponding product-specific tooling 1 can be replaced according to product needs;

[0045] Before calibration, the dial indicator is set up on the horizontal workbench. During calibration, the rotation of the dial indicator and the rotating platform 3 work together to complete the measurement and adjustment.

[0046] The product and its dedicated tooling 1 can be secured with screws or glue to ensure accuracy.

[0047] Depending on the processing requirements and calibration location, shims of different thicknesses can be replaced to adjust the product height;

[0048] The zero-point positioning fixture can move the product-specific tooling 1 from the rotary platform 3 to the machine tool, and its zero-point position remains unchanged.

[0049] The beneficial effects of this utility model's auxiliary clamping and positioning fixture for disc-shaped products are:

[0050] 1. Design auxiliary clamping and positioning fixtures to improve the in-machine calibration to an external calibration, which is easier to operate, and the calibration accuracy and efficiency are higher, ensuring the processing quality of the products;

[0051] 2. The modular design and convenient assembly method in terms of structure simplify the clamping process and improve clamping efficiency.

[0052] 3. The use of tapered roller bearings ensures smooth and precise rotation, improving machining quality;

[0053] 4. The replacement of gaskets enhances the flexibility and versatility of the tooling.

[0054] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An auxiliary clamping and positioning fixture for disc-shaped products, characterized in that, include: The components arranged from top to bottom are: product-specific tooling, rotating platform, rotating shaft, bearing mounting base, and base. The upper surface of the base is provided with a fixing seat embedding groove for placing a bearing fixing seat; the rotating shaft is rotatably mounted on the bearing fixing seat via a bearing. The lower surface of the rotating platform is provided with a shaft embedding groove for positioning and connecting the rotating shaft; the upper surface of the product-specific tooling has a coarse positioning profile adapted to the product.

2. The auxiliary clamping and positioning fixture for disc-shaped products according to claim 1, characterized in that, The rotating platform is also evenly distributed with several shims centered on the axis.

3. The auxiliary clamping and positioning fixture for disc-shaped products according to claim 2, characterized in that, The gasket is a circular gasket with several upper positioning through holes, and the rotating platform has corresponding lower positioning through holes. The two are connected by a pin for positioning.

4. The auxiliary clamping and positioning fixture for disc-shaped products according to claim 3, characterized in that, The gasket is also provided with a countersunk hole at its center, and the rotating platform is provided with a corresponding tapping hole. The two are locked together by a countersunk screw.

5. The auxiliary clamping and positioning fixture for disc-shaped products according to any one of claims 1-4, characterized in that, The lower surface of the product-specific tooling has a positioning protrusion or positioning groove that is adapted to the gasket.

6. The auxiliary clamping and positioning fixture for disc-shaped products according to claim 5, characterized in that, The bearing is a tapered roller bearing.

7. The auxiliary clamping and positioning fixture for disc-shaped products according to any one of claims 1-4, characterized in that, The bearing is a tapered roller bearing.

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