Clamping device for machining irregular holes in fixed shafts

By designing the clamping device of the left pressure block, right pressure block and screw, the problem of low positioning accuracy in the processing of irregular holes in shafts is solved, precise processing and efficient production are achieved, and the damage rate of parts and the consumption of manpower and material resources are reduced.

CN223394832UActive Publication Date: 2025-09-30SHANGHAI CENT MASCH MFG CO LTD
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Patent Information

Application Number
CN202422632311.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-30
Publication Date
2025-09-30
Estimated Expiration
2034-10-30

AI Technical Summary

Technical Problem

The existing technology has problems of low positioning accuracy and low processing efficiency when processing irregular holes in shafts, which makes it difficult to ensure the accuracy of parts and consumes a lot of manpower and material resources.

Method used

A clamping device including a left pressure block, a right pressure block and a screw is designed. Through the cooperation of the left threaded hole, the right threaded hole and the screw, the concentricity and center position of the workpiece are accurately positioned to ensure that the parts are not damaged during the processing. The left pressure block and the right pressure block are used to clamp the workpiece.

Benefits of technology

It achieves precise processing of irregular holes in shafts, reduces the damage rate of parts, improves processing efficiency, simplifies the operation process, saves manpower and material costs, and improves product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

A clamping device for machining irregular holes in fixed shafts comprises a left pressing block, a right pressing block and a screw, a left ejector pin hole is formed in the left end face of the left pressing block, a left side hole is formed in the side face of the left pressing block, a left boss is coaxially connected to the right end face of the left pressing block, and the diameter of the left boss is smaller than that of the left pressing block and equal to the inner diameter of a machined part. A left threaded hole is coaxially formed in the right side face of the left boss, the left end of the screw is connected with the left threaded hole of the left boss, and the right end of the screw is connected with the right threaded hole of the first right boss. The concentricity of the left pressing block, the right pressing block and a workpiece to be machined is guaranteed through the left threaded hole, the screw rod and the right threaded hole, and the center position of the workpiece to be machined is guaranteed; and the right pressing block and the left pressing block are the same in diameter, so that the two ends of the machined part are pressed the same, and the damage rate of the machined part is greatly reduced. On the premise that the surface of the part is not damaged, the part can be easily placed on a machine tool to be precisely machined, the machining difficulty can be greatly reduced, the product quality is improved, and the machining efficiency is improved.
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Description

Technical Field

[0001] The utility model relates to the field of machinery, in particular to a fixture, in particular to a clamping device for fixing shafts and machining irregular holes. Background Art

[0002] When machining shaft parts with irregular holes, precise positioning is often a labor-intensive process. The machining process is also complex, making it difficult to guarantee the hole's position. The process is tedious, both labor-intensive and resource-intensive, and the results may not always be satisfactory. Prior art methods for machining irregular holes in shafts involve manually marking the area where the hole is to be machined and then drilling the hole. This method can result in reduced precision and inability to guarantee position, leading to scrapped parts. It also consumes significant labor and resource. Summary of the Invention

[0003] The purpose of the utility model is to provide a clamping device for fixing shafts to process irregular holes, and the clamping device for fixing shafts to process irregular holes is intended to solve the technical problems of low positioning accuracy and low processing efficiency in the prior art.

[0004] The utility model discloses a clamping device for fixing an irregular hole in a fixed shaft, comprising a left pressure block, a right pressure block and a screw, wherein a left ejector hole is provided in the left end face of the left pressure block, a left side hole is provided in the side face of the left pressure block, a left boss is coaxially connected to the right end face of the left pressure block, the diameter of the left boss is smaller than the diameter of the left pressure block and is equal to the inner diameter of the workpiece, a left threaded hole is coaxially provided in the right side face of the left boss, the diameter of the right pressure block is equal to the diameter of the left pressure block, and a left side hole is provided in the side face of the right pressure block. There is a right side hole, and a first right boss is coaxially connected to the left end face of the right pressure block, the diameter of the first right boss is smaller than the diameter of the right pressure block and equal to the diameter of the left boss, a right threaded hole is coaxially provided in the left side face of the first right boss, and a second right boss is coaxially connected to the right end face of the right pressure block, the diameter of the second right boss is smaller than the diameter of the right pressure block, and a right ejector hole is provided in the right end face of the second right boss, the left end of the screw is connected to the left threaded hole of the left boss, and the right end of the screw is connected to the right threaded hole of the first right boss.

[0005] Furthermore, the left pressing block, the right pressing block, the left boss, the first right boss, and the second right boss are all cylindrical.

[0006] Compared with the existing technology, the effect of the present invention is positive and obvious. The present invention uses a left-threaded hole, a screw, and a right-threaded hole to ensure the concentricity of the left pressure block, the right pressure block, and the workpiece, ensuring the center position of the workpiece; the diameter of the right pressure block is the same as that of the left pressure block, ensuring that the pressure on both ends of the workpiece is the same, greatly reducing the damage rate of the workpiece. The present invention can easily place the parts on the machine tool for precise processing without damaging the surface of the parts, can greatly reduce the difficulty of processing, improve the quality of the product, achieve fast and convenient processing, simple operation, convenient processing, reduce labor intensity, save manpower and material costs, reduce processing time, and improve processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is a schematic diagram of a clamping device for fixing shafts for machining irregular holes according to the present invention. DETAILED DESCRIPTION

[0008] The following is a further description of the present invention in conjunction with an embodiment. However, the present invention is not limited to the embodiment. All similar structures and similar variations of the present invention should be included in the scope of protection of the present invention. The use of directions such as up, down, front, back, left, and right in the present invention is only for the convenience of clear description and does not limit the technical solution of the present invention.

[0009] like Figure 1 As shown, the utility model is a clamping device for fixing shafts for machining irregular holes, comprising a left pressure block 1, a right pressure block 2 and a screw 3. The left end face of the left pressure block 1 is provided with a left ejector hole 4, and the side face of the left pressure block 1 is provided with a left side hole 5. A left boss 6 is coaxially connected to the right end face of the left pressure block 1. The diameter of the left boss 6 is smaller than the diameter of the left pressure block 1 and is equal to the inner diameter of the workpiece to be machined. A left threaded hole is coaxially provided in the right side face of the left boss 6. The diameter of the right pressure block 2 is equal to the diameter of the left pressure block 1, and the side face of the right pressure block 2 is provided with a left side hole 5. There is a right side hole 7, and a first right boss 8 is coaxially connected to the left end face of the right pressure block 2. The diameter of the first right boss 8 is smaller than the diameter of the right pressure block 2 and equal to the diameter of the left boss 6. A right threaded hole is coaxially provided on the left side face of the first right boss 8, and a second right boss 9 is coaxially connected to the right end face of the right pressure block 2. The diameter of the second right boss 9 is smaller than the diameter of the right pressure block 2, and a right ejector hole is provided in the right end face of the second right boss 9. The left end of the screw 3 is connected to the left threaded hole of the left boss 6, and the right end of the screw 3 is connected to the right threaded hole of the first right boss 8.

[0010] Furthermore, the left pressing block 1 , the right pressing block 2 , the left boss 6 , the first right boss 8 , and the second right boss 9 are all cylindrical.

[0011] Specifically, the left threaded hole, the right threaded hole, the left ejector hole 4 , the right ejector hole, etc. in this embodiment all adopt well-known solutions in the prior art, which are well known to those skilled in the art and will not be described in detail here.

[0012] The working principle of this embodiment is as follows: first, the left pressure block 1 is connected to one end of the screw rod 3 through the left threaded hole, and tightened using the left side hole 5 and the corresponding tool. The inner hole of the left end of the workpiece cooperates with the left pressure block 1. Then, the right pressure block 2 is connected to the other end of the screw rod 3 through the right threaded hole, and tightened using the right side hole 7 and the corresponding tool. The workpiece is clamped by the left pressure block 1 and the right pressure block 2, and then the whole is clamped with the machine tool ejector through the ejector holes on the left pressure block 1 and the right pressure block 2, so that the workpiece can be easily fixed and then accurately processed.

[0013] The utility model utilizes a left-threaded hole, a screw 3, and a right-threaded hole to ensure the concentricity of the left pressure block 1, the right pressure block 2, and the workpiece, thereby ensuring the center position of the workpiece. The right pressure block 2 has the same diameter as the left pressure block 1, ensuring that both ends of the workpiece are subjected to equal pressure, greatly reducing the damage rate of the workpiece. The utility model can easily load parts onto machine tools for precise processing without damaging the surface of the parts, greatly reducing the processing difficulty, improving product quality, and achieving fast and convenient processing. It is simple to operate, convenient to process, reduces labor intensity, saves manpower and material costs, reduces processing time, and improves processing efficiency.

Claims

1. A clamping device for fixing shafts to process irregular holes, characterized in that: The invention comprises a left pressure block, a right pressure block and a screw, wherein the left end face of the left pressure block is provided with a left ejector hole, the side face of the left pressure block is provided with a left side hole, the right end face of the left pressure block is coaxially connected with a left boss, the diameter of the left boss is smaller than the diameter of the left pressure block and is equal to the inner diameter of the workpiece, the right side face of the left boss is coaxially provided with a left threaded hole, the diameter of the right pressure block is equal to the diameter of the left pressure block, the side face of the right pressure block is provided with a right side hole, the left end face of the right pressure block is coaxially connected with a left boss, the diameter of the left boss is coaxially connected with a left threaded hole, the diameter of the right pressure block is equal to the diameter of the left pressure block, the side face of the right pressure block is provided with a right side hole, the left end face of the right pressure block is coaxially connected with a left boss, the diameter of the left boss is coaxially connected with a left threaded hole, the diameter of the right pressure block is equal to the diameter of the left pressure block, the right end face of the right pressure block is coaxially connected with a left side hole, the left end face of the right pressure block is coaxially connected with a left boss, the diameter of the left boss is coaxially connected with a left side hole, the left end face of the right pressure block is coaxially connected with a left side hole, the left end face of the left ... A first right boss is coaxially connected to the end face, the diameter of the first right boss is smaller than the diameter of the right pressure block and equal to the diameter of the left boss, a right threaded hole is coaxially provided in the left side face of the first right boss, a second right boss is coaxially connected to the right end face of the right pressure block, the diameter of the second right boss is smaller than the diameter of the right pressure block, a right ejector hole is provided in the right end face of the second right boss, the left end of the screw is connected to the left threaded hole of the left boss, and the right end of the screw is connected to the right threaded hole of the first right boss.

2. A clamping device for fixing shafts for machining irregular holes according to claim 1, characterized in that: The left pressing block, the right pressing block, the left boss, the first right boss and the second right boss are all cylindrical.