Outer diameter clamp

Abstract

The utility model provides an outer diameter clamp, which relates to the technical field of clamps and comprises a conical surface flange plate, and a lathe spindle is arranged on the left side of the conical surface flange plate. According to the utility model, the conical surface flange plate is fixed on the lathe spindle through the first bolt, so that the conical positioning surfaces are in close fit, then the limiting block is arranged in the airtight assembly, and then the inner shrinkage sleeve rear pull rod and the airtight assembly are arranged on the rear pull block and are fixed through the second bolt; then, a conical main body and the rear pull assembly are installed on a conical surface flange plate together, finally, a rubber inner shrinkage sleeve is installed in the conical main body through a tool, then a lathe is connected with an oil cylinder to drive a rear pull block and an inner shrinkage sleeve rear pull rod, the rubber inner shrinkage sleeve is pulled backwards, and the conical surface of the rubber inner shrinkage sleeve and the conical main body conduct conical surface movement; and the overall design structure is simple and reasonable, the manufacturing cost is low, installation is convenient, and the clamping device is suitable for large-area application and popularization in the market.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to an outer diameter clamp. Background Art

[0002] An outside diameter fixture is a fixture used to clamp workpieces with an outside or inside diameter, and is commonly used in hydraulic and pneumatic tooling for CNC lathes and machining centers.

[0003] In the prior art, in order to improve the clamping efficiency, pneumatic outer diameter clamps are mostly used. However, the existing pneumatic outer diameter clamps have a relatively complex structure and a high degree of integration, resulting in high manufacturing costs and are not suitable for large-scale promotion and use in the market. Therefore, in response to the above problems, we propose a new type of outer diameter clamp. Utility Model Content

[0004] The utility model mainly provides an outer diameter clamp which is easy to install, simple in structure and low in cost.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an outer diameter clamp, including a conical flange, a lathe spindle is arranged on the left side of the conical flange, a limiting block is arranged inside the conical flange, a conical body is arranged on the right side of the conical flange, a rubber shrink sleeve is arranged on the inner side of the conical body, a rear pull block is arranged near the right side of the conical flange, and a shrink sleeve rear pull rod is arranged inside the conical body.

[0006] Furthermore, a plurality of first bolts are equidistantly installed on the right surface of the conical flange, and the outer surface of the first bolts passes through the outer surface of the conical flange and is threadedly connected to the lathe spindle. The first bolts are mainly used to fix the conical flange on the lathe spindle.

[0007] Furthermore, a second bolt is embedded in the right surface of the retractable sleeve rear pull rod, and the outer surface of the second bolt passes through the outer surface of the retractable sleeve rear pull rod and is connected to the rear pull block. The retractable sleeve rear pull rod and the rear pull block constitute a rear pull assembly. The second bolt is mainly used to connect the rear pull assembly and install it on the conical flange together.

[0008] Furthermore, a plurality of third bolts are equidistantly embedded on the right surface of the conical body, and the outer surface of the third bolts penetrates the outer surface of the conical body and is connected to the conical flange. The third bolts can prevent the rubber shrink sleeve from moving backward too much and causing damage to the shrink sleeve.

[0009] Furthermore, an airtight component is arranged inside the conical flange, a workpiece is arranged between the inner walls of the rubber shrink sleeve, and the airtight component is mainly used to drive the rear pull assembly to move and then cooperate with the rubber shrink sleeve to complete the clamping of the workpiece.

[0010] Compared with the prior art, the advantages and positive effects of the utility model are:

[0011] 1. In the utility model, the conical flange is fixed on the lathe spindle by the first bolt so that the conical positioning surface is closely matched, and then the limit block is installed in the airtight component, and then the inner shrinking sleeve rear pull rod and the airtight component are installed on the rear pull block and fixed with the second bolt, and then the conical body and the above-mentioned rear pull assembly are installed on the conical flange together, and finally the rubber inner shrinking sleeve is installed in the conical body by means of a tool, and then the lathe is connected to the oil cylinder to drive the rear pull block and the inner shrinking sleeve rear pull rod to pull the rubber inner shrinking sleeve backward, and the conical surface of the rubber inner shrinking sleeve and the conical body perform conical movement, so that the rubber inner shrinking sleeve is synchronously contracted inward to clamp the workpiece, and the overall design structure is simple and reasonable, the manufacturing cost is low, and the installation is convenient, which is suitable for large-scale promotion and use in the market.

[0012] 2. In the utility model, the third bolt can prevent the rubber inner sleeve from moving backward too much and causing damage to the inner sleeve. The rubber inner sleeve is tightly matched with the conical body, and the concentricity of the two ends can be controlled within 0.01mm, thereby ensuring uniform force on the workpiece and improving the clamping effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A three-dimensional diagram of the outer diameter fixture proposed for the utility model;

[0014] Figure 2 This is a front view of the outer diameter fixture provided by the utility model;

[0015] Figure 3 The utility model provides a structural schematic diagram of an outer diameter clamp.

[0016] Legend: 1. Lathe spindle; 2. Conical flange; 3. Limit block; 4. Conical body; 5. Rubber retractable sleeve; 6. Airtight component; 7. Rear pull block; 8. Retractable sleeve rear pull rod; 9. Workpiece; 10. First bolt; 11. Second bolt; 12. Third bolt. DETAILED DESCRIPTION

[0017] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0018] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0019] See also Figure 1-Figure 3 The utility model provides a technical solution: an outer diameter clamp includes a conical flange 2, a lathe spindle 1 is arranged on the left side of the conical flange 2, a limiting block 3 is arranged inside the conical flange 2, a conical body 4 is arranged on the right side of the conical flange 2, a rubber shrink sleeve 5 is arranged on the inner side of the conical body 4, a rear pull block 7 is arranged near the right side of the conical flange 2, and a shrink sleeve rear pull rod 8 is arranged inside the conical body 4.

[0020] like Figure 3 As shown, a plurality of first bolts 10 are equidistantly installed on the right surface of the conical flange 2, and the outer surface of the first bolt 10 passes through the outer surface of the conical flange 2 and is threadedly connected to the lathe spindle 1. The first bolt 10 is mainly used to fix the conical flange 2 on the lathe spindle 1.

[0021] like Figure 3 As shown, a second bolt 11 is embedded in the right surface of the retractable rear pull rod 8, and the outer surface of the second bolt 11 passes through the outer surface of the retractable rear pull rod 8 and is connected to the rear pull block 7. The retractable rear pull rod 8 and the rear pull block 7 constitute a rear pull assembly. The second bolt 11 is mainly used to connect the rear pull assembly and install it on the conical flange 2 together.

[0022] like Figure 3 As shown, a plurality of third bolts 12 are equidistantly embedded on the right surface of the conical body 4, and the outer surface of the third bolt 12 passes through the outer surface of the conical body 4 and is connected to the conical flange 2. By providing the third bolt 12, it is possible to prevent the rubber shrink sleeve 5 from moving too far backwards and causing damage to the shrink sleeve.

[0023] like Figure 3 As shown, an airtight component 6 is arranged inside the conical flange 2, and a workpiece 9 is arranged between the inner walls of the rubber shrink sleeve 5. The airtight component 6 is mainly used to drive the rear pull assembly to move and then cooperate with the rubber shrink sleeve 5 to complete the clamping of the workpiece 9.

[0024] The method of use and working principle of the device: When in use, first fix the conical flange 2 on the lathe spindle 1 by the first bolt 10, so that the conical positioning surface is closely matched, then the limit block 3 is installed in the airtight component 6, and then the inner shrink sleeve rear pull rod 8 and the airtight component 6 are installed on the rear pull block 7 and fixed with the second bolt 11, and then the conical body 4 and the above-mentioned rear pull assembly are installed on the conical flange 2, and finally the rubber inner shrink sleeve 5 is installed in the conical body 4 by the tool, and then the lathe is connected to the oil cylinder to drive the rear pull block 7 and the inner shrink sleeve rear pull Rod 8 pulls the rubber inner shrink sleeve 5 backward, and the conical surface of the rubber inner shrink sleeve 5 and the conical main body 4 perform conical movement, so that the rubber inner shrink sleeve 5 shrinks inward synchronously to clamp the workpiece 9. The overall design structure is simple and reasonable, the manufacturing cost is low, and the installation is convenient. It is suitable for large-scale promotion and use. The third bolt 12 can prevent the rubber inner shrink sleeve 5 from moving too far backward and causing damage to the inner shrink sleeve. The rubber inner shrink sleeve 5 is tightly matched with the conical main body 4, and the concentricity of the two ends can be controlled within 0.01mm, thereby ensuring that the workpiece 9 is evenly stressed and improving the clamping effect.

[0025] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An outer diameter fixture, comprising a conical flange (2), characterized in that: A lathe spindle (1) is arranged on the left side of the conical flange (2), a limit block (3) is arranged inside the conical flange (2), a conical body (4) is arranged on the right side of the conical flange (2), a rubber retractable sleeve (5) is arranged on the inner side of the conical body (4), a rear pull block (7) is arranged near the right side of the conical flange (2), a retractable sleeve rear pull rod (8) is arranged inside the conical body (4), a second bolt (11) is embedded on the right surface of the retractable sleeve rear pull rod (8), and the outer surface of the second bolt (11) passes through the outer surface of the retractable sleeve rear pull rod (8) and is connected to the rear pull block (7).

2. The outer diameter fixture according to claim 1, characterized in that: A plurality of first bolts (10) are equidistantly mounted on the right surface of the conical flange (2); the outer surfaces of the first bolts (10) penetrate the outer surface of the conical flange (2) and are threadedly connected to the lathe spindle (1).

3. The outer diameter fixture according to claim 2, characterized in that: A plurality of third bolts (12) are equidistantly embedded on the right surface of the conical body (4); the outer surfaces of the third bolts (12) penetrate the outer surface of the conical body (4) and are connected to the conical flange (2).

4. The outer diameter fixture according to claim 3, characterized in that: An airtight component (6) is arranged inside the conical flange (2), and a workpiece (9) is arranged between the inner walls of the rubber shrink sleeve (5).

Images