Bolt thread machining device

By combining the guide frame and the electric telescopic rod, the waste chips and coolant in the bolt thread processing device are automatically guided to the outside of the equipment, solving the problems of burns and inconvenience in operation of the existing device, and improving safety and convenience.

CN223776179UActive Publication Date: 2026-01-09ANHUI TENGZHIBO AUTO PARTS MANUFACTURING CO LTD
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Patent Information

Application Number
CN202520045879.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-09
Publication Date
2026-01-09
Estimated Expiration
2035-01-09

AI Technical Summary

Technical Problem

Existing bolt thread processing equipment generates a large amount of heat during processing, posing a risk of burns, and the coolant is inconvenient to operate, affecting the safety of workers.

Method used

A bolt thread processing device was designed, comprising a material guiding assembly and a filter screen. Through the cooperation of a guide frame and an electric telescopic rod, waste chips and coolant are automatically guided to the outside of the equipment to avoid direct contact. The thread processing is performed by using an electric motor to drive the clamping and milling assembly.

Benefits of technology

It enables the safe handling of waste chips and coolant after processing, avoiding the risk of burns and improving operational safety and convenience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a bolt thread machining device which comprises an installation box, a material guiding assembly is installed on the top of the installation box, the material guiding assembly is located at one end of the installation box, the material guiding assembly comprises two hinged supports fixedly connected with one end of the outer wall of the top of the installation box, and the same guiding frame is hinged between the two hinged supports. One end of the guide frame extends towards the outer side of the mounting box, a horizontally-arranged connecting frame is fixedly connected to one end of the outer wall of the bottom of the hinged support, a cylinder in a horizontal state is arranged in the connecting frame, an electric telescopic rod is fixedly mounted on the outer wall of one end of the mounting box, and the output end of the electric telescopic rod is fixedly connected with a horizontally-arranged driving ring. Through the arrangement of the material guiding assembly, the machined bolts are received after machining is completed, the machined bolts are guided to the outside of equipment, sweeps generated in the machining process are also prevented from sliding outwards along a guiding frame, and workers do not need to make direct contact with workpieces.
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Description

Technical Field

[0001] This utility model relates to the field of thread processing technology, specifically a bolt thread processing device. Background Technology

[0002] A bolt is a mechanical part, a cylindrical threaded fastener fitted with a nut. It is usually composed of two parts: a head and a threaded cylinder. Bolts are widely used, and when manufacturing bolts, it is often necessary to perform thread processing.

[0003] A search revealed a utility model patent with Chinese patent publication number CN220993019U, which discloses a thread processing device for bolts. The device includes a processing table, with bases fixed to the four corners of the bottom surface of the processing table. The top surface of the processing table has a placement groove, and the bottom surfaces of two support plates are symmetrically fixed to the top surfaces of the processing table at both ends of the placement groove. One end of a support rod is fixed to the top surface of each support plate, and the other end of the support rod is fixed to both ends of the bottom surface of a mounting plate. The bottom surface of the mounting plate has a moving groove, and a first motor is embedded in one side of the inner wall of the moving groove.

[0004] The aforementioned device generates a large amount of heat during operation, and direct contact after processing may cause burns. If cooling is achieved through coolant during processing, coolant will also get on your hands when handling the workpiece, making operation inconvenient and leaving room for improvement. Utility Model Content

[0005] The purpose of this utility model is to provide a bolt thread processing device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a bolt thread processing device, comprising a mounting box, a material guiding assembly mounted on the top of the mounting box, the material guiding assembly being located at one end of the mounting box, the material guiding assembly comprising two hinge seats fixedly connected to one end of the top outer wall of the mounting box, a common guide frame hinged between the two hinge seats, one end of the guide frame extending outward from the mounting box, a horizontally arranged connecting frame fixedly connected to one end of the bottom outer wall of the hinge seats, a horizontally arranged cylinder arranged inside the connecting frame, an electric telescopic rod fixedly mounted on one end of the outer wall of the mounting box, a horizontally arranged drive ring fixedly connected to the output end of the electric telescopic rod, the drive ring being slidably sleeved on the outside of the cylinder.

[0007] After processing, the machine receives the finished bolts and guides them to the outside of the equipment. This also prevents waste generated during processing from sliding outwards along the guide frame. There is no need for workers to directly contact the workpiece. The guide frame tilts towards the inside of the mounting box. When waste or coolant falls to the top of the guide frame, it will fall down its slope to the top of the filter screen. Then, the electric telescopic rod on the outside of the mounting box is activated. Its output end drives the drive ring to move downwards. The drive ring drives the guide frame to flip between the two hinge seats through the connecting frame. When the connecting frame flips, it changes not only in the vertical direction but also in the horizontal direction. Because the groove inside the drive ring is long and narrow, it can ensure that the movement of the connecting frame is not obstructed until the guide frame tilts outwards. When the bolt falls to the top of the guide frame, it will automatically slide down its slope to the outside. Finally, the guide frame is controlled to tilt back towards the inside of the mounting box.

[0008] As a further preferred embodiment of this technical solution, a clamping assembly is installed on the top of the mounting box. The clamping assembly includes a support base fixedly connected to one side of the outer wall of the top of the mounting box. A turntable is rotatably connected to one side of the outer wall of the support base via a bearing. The other end of the guide frame is located at the bottom of the turntable. A motor adapted to the turntable is installed outside the support base.

[0009] As a further preferred embodiment of this technical solution, the turntable has several limiting grooves inside, each of the limiting grooves is rotatably connected to a lead screw, and each of the lead screws is threaded with a clamping block, which is slidably inserted into the limiting grooves.

[0010] As a further preferred embodiment of this technical solution, a bevel gear 1 is rotatably connected to the inner wall of one side of the turntable via a bearing, and a bevel gear 2 is coaxially fixed at one end of each of the several lead screws 1 that are close to each other, and the several bevel gears 2 mesh with the bevel gear 1.

[0011] As a further preferred embodiment of this technical solution, a comb milling assembly is installed on the top of the mounting box. The comb milling assembly includes a guide frame 1 fixedly installed on the other end of the outer wall of the top of the mounting box. A horizontally arranged lead screw 2 is rotatably connected inside the guide frame 1 via a bearing. The guide frame 2 is threaded onto the outside of the lead screw 2, and the lower half of the guide frame 2 is in contact with the inner wall of the guide frame 1. A horizontally arranged lead screw 3 is rotatably connected inside the guide frame 2 via a bearing. A mounting seat is threaded onto the outside of the lead screw 3, and the lower half of the mounting seat is in contact with the inside of the guide frame 2. A motor 2 and a motor 3 are respectively installed on the outside of the guide frame 1 and the guide frame 2, and the output ends of the motor 2 and the motor 3 are coaxially fixed to one end of the lead screw 2 and the lead screw 3, respectively. A comb milling cutter is provided at the end of the mounting seat.

[0012] As a further preferred embodiment of this technical solution, a horizontally arranged filter screen is provided inside the mounting box.

[0013] As a further preferred embodiment of this technical solution, the thread helix angle of several of the external threads of the lead screw is less than the equivalent friction angle.

[0014] This utility model provides a bolt thread processing device, which has the following beneficial effects:

[0015] This invention features a guide assembly that receives and guides the finished bolts to the outside of the equipment after processing, preventing waste from sliding outwards along the guide frame. This eliminates the need for workers to directly contact the workpiece. The guide frame tilts inwards towards the mounting box. When waste or coolant falls to the top of the guide frame, it will slide down the slope to the top of the filter screen. Then, the electric telescopic rod on the outside of the mounting box is activated, its output driving the drive ring downwards. The drive ring, through the connecting frame, causes the guide frame to flip between two hinges. As the connecting frame flips, it changes both vertically and horizontally. The elongated groove inside the drive ring ensures unobstructed movement of the connecting frame until the guide frame tilts outwards. When the bolt falls to the top of the guide frame, it will automatically slide down the slope to the outside. Finally, the guide frame is tilted back into the mounting box. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall first-view structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall second-view structure of this utility model;

[0018] Figure 3 This is a partially enlarged structural diagram of the clamping component of this utility model;

[0019] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0020] In the diagram: 1. Mounting box; 2. Filter screen; 3. Material guiding assembly; 4. Clamping assembly; 5. Comb milling assembly; 301. Hinge seat; 302. Guide frame; 303. Electric telescopic rod; 304. Connecting frame; 305. Drive ring; 401. Support seat; 402. Turntable; 403. Limiting groove; 404. Lead screw one; 405. Clamping block; 406. Bevel gear one; 407. Bevel gear two; 501. Guide frame one; 502. Lead screw two; 503. Guide frame two; 504. Lead screw three; 505. Mounting seat. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] This utility model provides a technical solution: such as Figure 1 and Figure 2 As shown, in this embodiment, a bolt thread processing device includes a mounting box 1. A material guiding assembly 3 is installed on the top of the mounting box 1. The material guiding assembly 3 is located at one end of the mounting box 1. The material guiding assembly 3 includes two hinge seats 301 fixedly connected to one end of the top outer wall of the mounting box 1. The two hinge seats 301 are hinged together by the same guide frame 302. One end of the guide frame 302 extends outward from the mounting box 1. A horizontally arranged connecting frame 304 is fixedly connected to one end of the bottom outer wall of the hinge seat 301. A horizontally arranged cylinder is arranged inside the connecting frame 304. An electric telescopic rod 303 is fixedly installed on one end of the outer wall of the mounting box 1. A horizontally arranged driving ring 305 is fixedly connected to the output end of the electric telescopic rod 303. The driving ring 305 is slidably sleeved on the outside of the cylinder.

[0023] The guide frame 302 tilts towards the inside of the mounting box 1. When waste or coolant falls onto the top of the guide frame 302, it will fall along its slope onto the top of the filter screen 2. Then, the electric telescopic rod 303 on the outside of the mounting box 1 is activated. Its output end drives the drive ring 305 to move downward. The drive ring 305 drives the guide frame 302 to flip between the two hinge seats 301 through the connecting frame 304. Since the connecting frame 304 changes not only in the vertical direction but also in the horizontal direction when it flips, the groove inside the drive ring 305 is long and narrow, which ensures that the movement of the connecting frame 304 is not obstructed until the guide frame 302 tilts towards the outside. When the bolt falls onto the top of the guide frame 302, it will automatically slide down along the slope to the outside. Finally, the guide frame 302 is controlled to tilt back towards the inside of the mounting box 1.

[0024] like Figure 3 and Figure 4 As shown, a clamping assembly 4 is installed on the top of the mounting box 1. The clamping assembly 4 includes a support base 401 fixedly connected to one side of the outer wall of the top of the mounting box 1. A turntable 402 is rotatably connected to one side of the outer wall of the support base 401 via a bearing. The other end of the guide frame 302 is located at the bottom of the turntable 402. An electric motor adapted to the turntable 402 is installed on the outside of the support base 401.

[0025] The turntable 402 has several limiting grooves 403 inside, and each limiting groove 403 is rotatably connected to a lead screw 404. Each lead screw 404 is threaded with a clamping block 405 outside, and the clamping blocks 405 are slidably inserted into the limiting grooves 403.

[0026] A bevel gear 406 is rotatably connected to one side of the inner wall of the turntable 402 via a bearing. A bevel gear 407 is coaxially fixed at one end of several lead screws 404 that are close to each other. The bevel gears 407 mesh with the bevel gears 406.

[0027] A lead screw 404 is driven to rotate, and a bevel gear 407 connected to it is driven to rotate synchronously. This bevel gear 407 can drive several other bevel gears 407 to rotate through the bevel gear 406 meshing with it. Consequently, several other lead screws 404 will also rotate. Several clamping blocks 405, which are limited by the limiting groove 403, are driven to move closer to each other by several lead screws 404 until the multiple clamping blocks 405 fix the raw material in the middle position of the turntable 402.

[0028] like Figure 1 and Figure 2 As shown, a comb milling assembly 5 is installed on the top of the mounting box 1. The comb milling assembly 5 includes a guide frame 501 fixedly installed on the other end of the top outer wall of the mounting box 1. A horizontally arranged lead screw 502 is rotatably connected to the inside of the guide frame 501 through a bearing. A guide frame 503 is threaded on the outside of the lead screw 502, and the lower half of the guide frame 503 is in contact with the inner wall of the guide frame 501. A horizontally arranged lead screw 504 is rotatably connected to the inside of the guide frame 503 through a bearing. A mounting seat 505 is threaded on the outside of the lead screw 504, and the lower half of the mounting seat 505 is in contact with the inside of the guide frame 503. A motor 2 and a motor 3 are respectively installed on the outside of the guide frame 501 and the guide frame 503. The output ends of the motor 2 and the motor 3 are coaxially fixed to one end of the lead screw 2 502 and the lead screw 3 504, respectively. A comb milling cutter is provided at the end of the mounting seat 505.

[0029] Start the motor outside the guide frame 503 to drive the lead screw 504 to rotate, and the mounting base 505 moves closer to the material. Then start the motor outside the guide frame 501 to drive the lead screw 502 to rotate, and the guide frame 503 moves horizontally. With the rotation of the turntable 402, a shallow thread can be made. Then repeat the operation to deepen the thread depth and complete the thread processing.

[0030] like Figure 1 As shown, the installation box 1 is equipped with a horizontally arranged filter screen 2. If coolant is used for cooling, the coolant containing waste debris will fall to the top of the filter screen 2 and the waste debris will be collected and intercepted by the filter screen 2.

[0031] like Figure 3 As shown, the thread helix angle of the external threads of several lead screws 404 is less than the equivalent friction angle, which makes the lead screws 404 self-locking, ensuring that the position of the clamping block 405 will not change due to external force after the position is adjusted.

[0032] This utility model provides a bolt thread processing device, the specific working principle of which is as follows:

[0033] When the device is working, one end of the cylindrical material is inserted between several clamping blocks 405. A wrench is then inserted into the rectangular hole at the end of a lead screw 404, causing it to rotate. A bevel gear 407 connected to this lead screw 404 is then driven to rotate synchronously. This bevel gear 407, through its meshing bevel gear 406, drives several other bevel gears 407 to rotate, which in turn causes the other lead screws 404 to rotate as well. The clamping blocks 405, restricted by the limiting groove 403, are driven closer together by the lead screws 404 until the material is precisely fixed in the center of the turntable 402. Then, the motor outside the guide frame 503 is activated, driving the lead screw 504 to rotate. The mounting base 505 moves closer to the material. Next, the motor outside the guide frame 501 is activated, driving the lead screw 502 to rotate. The guide frame 503 moves horizontally. The rotation of turntable 402 is enough to create a shallow thread. The operation is repeated to deepen the thread depth, thus completing the thread processing. During this process, guide frame 302 tilts towards the inside of mounting box 1. When waste or coolant falls to the top of guide frame 302, it will fall along its slope to the top of filter screen 2. Then, the electric telescopic rod 303 on the outside of mounting box 1 is activated. Its output end drives drive ring 305 to move downward. Drive ring 305 drives guide frame 302 to flip between two hinge seats 301 through connecting frame 304. Since connecting frame 304 changes not only in the vertical direction but also in the horizontal direction when flipping, the long groove inside drive ring 305 ensures that the movement of connecting frame 304 is unimpeded until guide frame 302 tilts outward. When bolts fall to the top of guide frame 302, they will automatically slide down the slope to the outside. Finally, guide frame 302 is controlled to tilt back towards the inside of mounting box 1.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bolt thread processing device, comprising a mounting box (1), characterized in that: A material guiding assembly (3) is installed on the top of the mounting box (1). The material guiding assembly (3) is located at one end of the mounting box (1). The material guiding assembly (3) includes two hinge seats (301) fixedly connected to one end of the top outer wall of the mounting box (1). The two hinge seats (301) are hinged together by the same guide frame (302). One end of the guide frame (302) extends outward from the mounting box (1). A horizontally arranged connecting frame (304) is fixedly connected to one end of the bottom outer wall of the hinge seat (301). A horizontally arranged cylinder is arranged inside the connecting frame (304). An electric telescopic rod (303) is fixedly installed on one end of the outer wall of the mounting box (1). A horizontally arranged drive ring (305) is fixedly connected to the output end of the electric telescopic rod (303). The drive ring (305) is slidably sleeved on the outside of the cylinder.

2. The bolt thread processing device according to claim 1, characterized in that: The mounting box (1) is equipped with a clamping assembly (4) on its top. The clamping assembly (4) includes a support base (401) fixedly connected to one side of the top outer wall of the mounting box (1). A turntable (402) is rotatably connected to one side of the outer wall of the support base (401) via a bearing. The other end of the guide frame (302) is located at the bottom of the turntable (402). An electric motor adapted to the turntable (402) is installed on the outside of the support base (401).

3. The bolt thread processing device according to claim 2, characterized in that: The turntable (402) has several limiting grooves (403) inside. Each of the limiting grooves (403) is rotatably connected to a lead screw (404). Each of the lead screws (404) is threaded with a clamping block (405) on its outside. The clamping blocks (405) are slidably inserted into the limiting grooves (403).

4. The bolt thread processing device according to claim 3, characterized in that: The inner wall of one side of the turntable (402) is rotatably connected to a bevel gear (406) via a bearing. A bevel gear (407) is coaxially fixed at one end of each of the screws (404) that are close to each other. The bevel gears (407) mesh with the bevel gears (406).

5. The bolt thread processing device according to claim 1, characterized in that: The top of the mounting box (1) is equipped with a comb milling assembly (5). The comb milling assembly (5) includes a guide frame (501) fixedly installed at the other end of the top outer wall of the mounting box (1). A horizontally arranged lead screw (502) is rotatably connected inside the guide frame (501) through a bearing. The guide frame (503) is threaded onto the outside of the lead screw (502), and the lower half of the guide frame (503) is in contact with the inner wall of the guide frame (501). The guide frame (503) is connected inside the guide frame (503) through a bearing. A horizontally arranged lead screw three (504) is rotatably connected. The lead screw three (504) is threaded with a mounting seat (505), and the lower half of the mounting seat (505) fits against the inside of the guide frame two (503). The guide frame one (501) and the guide frame two (503) are respectively mounted with motor two and motor three. The output ends of motor two and motor three are respectively coaxially fixed to one end of lead screw two (502) and lead screw three (504). A comb cutter is provided at the end of the mounting seat (505).

6. The bolt thread processing device according to claim 1, characterized in that: The installation box (1) is equipped with a horizontally arranged filter screen (2).

7. The bolt thread processing device according to claim 3, characterized in that: The thread helix angle of the external threads of several of the aforementioned lead screws (404) is less than the equivalent friction angle.

Citation Information

Patent Citations

  • A thread processing device for bolts

    CN220993019U