Tool for finely trimming external threads of small parts

Abstract

The utility model discloses a tool for fine trimming of external threads of small parts, relates to the technical field of tools for machining external threads, solves the technical problems that in the prior art, parts cannot be reliably clamped, rotation cannot be prevented, and the parts cannot be conveniently replaced, and comprises an electric tapping machine workbench, a tapping machine chuck and a workpiece. A threading die base is fixedly installed on the upper wall face of the electric tapping machine workbench, a bolt set is connected between the interior of the threading die base and the electric tapping machine workbench, an extension rod is fixedly installed in the tapping machine chuck, and an inner hexagonal sleeve is fixedly installed at the lower end of the extension rod. Parts are prevented from rotating, and machining precision and consistency are guaranteed; due to the tool design, parts can be replaced more conveniently and efficiently; the tool is precise in structure, precise machining of external threads of small parts is achieved through the fine trimming tool, and the high-requirement machining standard is met; the safety in the operation process is guaranteed, and the accident risk is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling for processing external threads, in particular to a tooling for finely trimming the external threads of small parts. Background Art

[0002] The utility model relates to a technical field in which the workpiece has an equilateral external hexagon at the large end and an external thread at the small end. The workpiece requires a complete thread tail and no back-cut groove at the shoulder joint. The thread diameter tolerance is less than the general grade, and it belongs to a non-standard thread. Due to the above requirements, common lathes, CNC lathes, thread grinders and threading machines cannot independently complete the processing of external threads. The cost of CNC processing is high and the surface roughness is difficult to guarantee. For the processing of parts with special requirements, special tooling equipment needs to be designed and manufactured. These tooling equipment plays an important role in the processing process. First, the tooling equipment can provide a stable clamping force to ensure that the workpiece is fixed in position during the processing process and avoid processing errors. Secondly, the tooling equipment can provide an accurate positioning function to ensure the correct position and direction of the workpiece during the processing process and ensure the processing accuracy. In addition, the tooling equipment also provides support and fixation to make the workpiece stable, reduce deformation and vibration, and ensure the processing quality. Through the precisely designed and manufactured tooling equipment, various parameters in the processing process, such as tool position, feed speed, etc., can be controlled to ensure processing accuracy and consistency, and ultimately achieve processing results that meet customer requirements.

[0003] The existing technology cannot reliably support parts to prevent rotation and facilitate the replacement of parts. Summary of the invention

[0004] In view of the deficiencies of the prior art, the utility model provides a tool for fine-tuning the external threads of small parts, which solves the technical problems of the prior art that the parts cannot be reliably supported to prevent rotation and cannot be easily replaced.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a tool for finishing the external threads of small parts, comprising an electric tapping machine workbench, a tapping machine chuck and a workpiece, a die seat is fixedly installed on the wall surface of the electric tapping machine workbench, a bolt group is connected between the die seat and the electric tapping machine workbench, an extension rod is fixedly installed in the tapping machine chuck, a hexagonal socket is fixedly installed at the lower end of the extension rod, the workpiece is fixedly installed at the lower end of the hexagonal socket, a rubber pad is connected between the workpiece and the hexagonal socket, and a finishing tool is fixedly installed in the die seat.

[0006] Preferably, the finishing tool includes a root cleaning die, and the finishing tool can also be a finishing die, which is modified from a commercially available standard die. First, they need to be thinned. A portion of the thickness is cut off on one end face to remove the cutting guide portion. Then, an opening of a certain width is cut along the diameter direction at the position of the outer circle notch. After the die is installed on the die seat, pressure is applied to the die by rotating the die top screw to cause circumferential deformation, thereby achieving the purpose of adjusting the thread diameter.

[0007] Preferably, a die top screw is connected between the finishing tool and the die seat.

[0008] Preferably, the bolt group includes a locking seat, which is slidably installed in the workbench of the electric tapping machine. The electric tapping machine workbench is threadedly connected with a threaded rod, and a gasket is installed on the upper wall of the die seat. The gasket is mounted on the outside of the threaded rod, and the threaded rod is externally threaded with a locking nut.

[0009] Preferably, a square hole is provided in the tapping machine chuck, a square head is provided at the upper end of the extension rod, a square hole is provided at the upper end of the hexagonal socket, and a square head is provided at the lower end of the extension rod.

[0010] Preferably, a slag discharge port is provided at the lower end of the die seat.

[0011] Beneficial Effects

[0012] The utility model provides a tool for fine-tuning the external threads of small parts. The tool design of the utility model ensures reliable support of parts, prevents parts from rotating, and ensures processing accuracy and consistency; the tool design makes replacing parts more convenient and efficient, thereby improving production efficiency; the tool structure is precise, and fine-tuning tools are used to achieve precise processing of the external threads of small parts, meeting high-demand processing standards; the tool design takes into account the safety of operators, ensures safety during operation, and reduces accidental risks; the application of tool structure and fine-tuning tools enables the product to reliably meet design requirements and ensure product quality; in conjunction with an electric-controlled tapping machine, maximum torque protection can be set, and the machine can be shut down once the limit is exceeded, thereby improving the safety of equipment and operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a schematic diagram of the parts structure of a tool for fine-tuning the external threads of small parts.

[0014] Figure 2 The utility model is a schematic diagram of the assembly structure of a tool for fine-tuning the external threads of small parts.

[0015] In the figure: 1. Electric tapping machine workbench; 2. Tapping machine chuck; 3. Workpiece; 4. Die seat; 5. Extension rod; 6. Hexagon socket; 7. Rubber pad; 8. Finishing tool; 9. Die top screw; 10. Locking seat; 11. Threaded rod; 12. Washer; 13. Lock nut; 14. Slag discharge port; DETAILED DESCRIPTION

[0016] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, rather than all the embodiments. The detailed description is as follows.

[0017] See also Figure 1-2 The utility model provides a technical solution: a tool for finishing the external threads of small parts, comprising an electric tapping machine workbench 1, a tapping machine chuck 2 and a workpiece 3, a die seat 4 is fixedly installed on the upper wall of the electric tapping machine workbench 1, a bolt group is connected between the die seat 4 and the electric tapping machine workbench 1, an extension rod 5 is fixedly installed in the tapping machine chuck 2, a hexagon socket 6 is fixedly installed at the lower end of the extension rod 5, the workpiece 3 is fixedly installed at the lower end of the hexagon socket 6, a rubber pad 7 is connected between the workpiece 3 and the hexagon socket 6, and a finishing tool 8 is fixedly installed in the die seat 4.

[0018] The present embodiment is further configured such that the finishing tool 8 includes a root cleaning die, and the finishing tool 8 can also be a finishing die, which is obtained by modifying the standard dies available on the market. First, they need to be thinned. A portion of the thickness is cut off on one end face to remove the cutting guide portion. Then, an opening of a certain width is cut along the diameter direction at the position of the outer circle notch. After the die is installed on the die seat 4, pressure is applied to the die by rotating the die top screw 9 to cause circumferential deformation, thereby achieving the purpose of adjusting the thread diameter.

[0019] This embodiment is further configured such that a die top screw 9 is connected between the finishing tool 8 and the die seat 4 .

[0020] This embodiment is further configured as follows: the bolt group includes a locking seat 10, the locking seat 10 is slidably installed in the electric tapping machine workbench 1, the electric tapping machine workbench 1 is internally threaded with a threaded rod 11, a gasket 12 is installed on the upper wall of the die seat 4, the gasket 12 is sleeved on the outside of the threaded rod 11, and the threaded rod 11 is externally threaded with a locking nut 13.

[0021] This embodiment is further configured as follows: a square hole is provided in the tapping machine chuck 2 , a square head is provided at the upper end of the extension rod 5 , a square hole is provided at the upper end of the hexagon socket 6 , and a square head is provided at the lower end of the extension rod 5 .

[0022] The present embodiment is further configured such that a slag discharge port 14 is provided at the lower end of the die seat 4 .

[0023] The detailed connection means are well known in the art; Figure 1-2 As shown, the workpiece 3 is mounted on the lower end of the hexagonal sleeve 6 to ensure that the regular hexagonal prism is tightly connected to the workpiece 3. The upper end of the extension rod 5 is connected to the chuck 2 of the electric tapping machine to prepare the workpiece 3 for processing.

[0024] The die seat 4 is fixed on the workbench of the electric tapping machine to ensure stability. The root cleaning die and the finishing die are respectively installed on the die seat 4, and the thread diameter is adjusted by the die top screw 9.

[0025] Start the electric tapping machine, so that the spindle provides power, the tapping machine chuck 2 starts, drives the extension rod 5 to rotate, the extension rod 5 drives the hexagon socket 6 to rotate, and then drives the workpiece 3 to rotate. The rubber pad 7 of appropriate thickness not only determines the matching connection length between the workpiece 3 and the hexagon socket 6, but also protects the upper end of the workpiece 3 from mechanical damage. After applying appropriate downward pressure, the workpiece 3 begins to screw into the die, completing the cutting feed movement.

[0026] Two die seats 4 are arranged on the workbench of the electric-controlled tapping machine, and the root-clearing die and the finishing die are installed respectively. After the workpiece 3 completes the external thread root clearing cutting operation at the root-clearing die, the external thread finishing operation is completed by moving the spindle of the electric-controlled tapping machine to the finishing die.

[0027] After the external thread cutting of workpiece 3 reaches the set depth, the spindle of the electric tapping machine rotates in the opposite direction to smoothly withdraw workpiece 3. Ensure that the processing is completed, and replace the root cleaning die and finishing die as needed.

[0028] During the processing, pay attention to timely cleaning up the waste chips, keep the working environment clean, and ensure the processing quality and efficiency.

[0029] During operation, pay attention to safe operating specifications, ensure that all components are firmly connected, and avoid accidents. Operate in accordance with the equipment operating manual and relevant safety regulations.

[0030] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0031] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A tool for finishing the external threads of small parts, comprising an electric tapping machine workbench (1), a tapping machine chuck (2) and a workpiece (3), characterized in that: A die seat (4) is fixedly mounted on the upper wall of the electric tapping machine workbench (1); a bolt group is connected between the die seat (4) and the electric tapping machine workbench (1); an extension rod (5) is fixedly mounted in the tapping machine chuck (2); a hexagon socket (6) is fixedly mounted at the lower end of the extension rod (5); the workpiece (3) is fixedly mounted at the lower end of the hexagon socket (6); a rubber pad (7) is connected between the workpiece (3) and the hexagon socket (6); and a finishing tool (8) is fixedly mounted in the die seat (4).

2. A tool for finishing the external threads of small parts according to claim 1, characterized in that The finishing tool (8) includes a root cleaning die, and the finishing tool (8) can also be a finishing die.

3. A tool for finishing the external threads of small parts according to claim 1, characterized in that A die top screw (9) is connected between the finishing tool (8) and the die seat (4).

4. The tool for finishing the external thread of small parts according to claim 1, characterized in that The bolt group includes a locking seat (10), the locking seat (10) is slidably installed in the electric tapping machine workbench (1), the electric tapping machine workbench (1) is internally threadedly connected to a threaded rod (11), a gasket (12) is installed on the upper wall of the die seat (4), the gasket (12) is sleeved on the outside of the threaded rod (11), and the threaded rod (11) is externally threadedly connected to a locking nut (13).

5. The tool for finishing the external thread of small parts according to claim 1, characterized in that A square hole is formed in the tapping machine chuck (2), a square head is formed at the upper end of the extension rod (5), a square hole is formed at the upper end of the hexagon socket (6), and a square head is formed at the lower end of the extension rod (5).

6. The tool for finishing the external thread of small parts according to claim 1, characterized in that A slag discharge port (14) is provided at the lower end of the die seat (4).

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