A high-strength bolt thread processing clamping device

Abstract

The application relates to the technical field of thread processing, and discloses a clamping device for high-strength bolt thread processing, which comprises a bed body and an extrusion wheel, a supporting plate is fixedly connected to the inner wall of the extrusion wheel, a sliding plate is slidably connected to the surface of the supporting plate through guide rails, a guide sleeve is slidably connected to the surface of the sliding plate through sliding rails, a centering mechanism is arranged in the guide sleeve, the centering mechanism comprises a guide disc, the outer wall of the guide disc is fixedly connected with the inner wall of the guide sleeve, the axis of the guide disc and the axis of the extrusion wheel are located on the same horizontal plane, supporting blocks are slidably connected to the outer wall of the guide disc, a centering wheel is rotatably connected to the inner wall of the supporting block through a rotating shaft, and the centering wheel is supported by the supporting block. The centering mechanism is arranged to clamp and support the bolt, the bolt is prevented from shaking during the processing, the processing precision of the thread is influenced, and the stability of the clamping device for high-strength bolt thread processing to clamp the bolt is improved.

Description

Technical Field

[0001] This invention relates to the field of thread processing technology, specifically to a clamping device for processing high-strength bolt threads. Background Technology

[0002] Clamping devices for high-strength bolt threading are used to hold high-strength bolts in place, meeting the positioning and fixing requirements for bolt threading. They provide clamping support for bolt processing, ensuring the orderly progress of bolt threading.

[0003] Patent application CN202320887795.7 discloses a clamping device for high-strength bolt thread processing, including a clamping sleeve. The upper surface of the clamping sleeve is provided with a translational groove. One end of the clamping sleeve is fixed with a rotating ring. A rotating seat is provided outside the rotating ring. An anti-displacement mechanism is provided on the surface of the clamping sleeve. The anti-displacement mechanism includes a translational slider, a first locking sleeve, and a first locking screw. The translational slider is slidably connected in the translational groove of the clamping sleeve.

[0004] However, when the clamping device used for high-strength bolt threading clamps the bolt for processing, the bolt axis cannot be kept on the same horizontal plane as the axis of the processing wheel, and the bolt will wobble during the threading process, resulting in deviations in the thread size and affecting the bolt tightening effect. Summary of the Invention

[0005] The purpose of this invention is to provide a clamping device for high-strength bolt thread processing, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a clamping device for high-strength bolt thread processing, comprising a bed and an extrusion wheel, a support plate fixedly connected to the inner wall of the extrusion wheel, a sliding plate slidably connected to the surface of the support plate via a guide rail, a guide sleeve slidably connected to the surface of the sliding plate via a guide rail, and a centering mechanism provided inside the guide sleeve; The centering mechanism includes a guide plate, the outer wall of which is fixedly connected to the inner wall of the guide sleeve. The axis of the guide plate and the axis of the extrusion wheel are located on the same horizontal plane. A support block is slidably connected to the outer wall of the guide plate. A centering wheel is rotatably connected to the inner wall of the support block through a rotating shaft. The centering wheel is supported by the support block and is used to center the bolt and support the bolt.

[0007] According to the above technical solution, the outer wall of the guide disk is provided with a guide groove 1. The groove wall of the guide groove 1 is slidably connected to the outer wall of the support block via a slider. An adjustment disk is slidably connected to the end of the support block away from the guide disk. The outer wall of the adjustment disk is rotatably connected to the inner wall of the guide sleeve. The inner wall of the adjustment disk is provided with a guide groove 2. The groove wall of the guide groove 2 is slidably connected to the outer wall of the support block via a slider. The guide groove 1 is used to guide and limit the support block, and the guide groove 2 is used to guide and limit the support block.

[0008] According to the above technical solution, the end of the adjusting disc away from the support block is rotatably connected to a support ring via a bearing. The support ring is used to support the bolt head. An adjusting motor is fixedly connected to the top of the guide sleeve. The output end of the adjusting motor is meshed with the outer wall of the adjusting disc via a gear. The adjusting disc is driven to rotate by the adjusting motor, so that the support block is simultaneously guided by guide groove one and guide groove two, and adjusted in the direction of the bolt.

[0009] According to the above technical solution, an elastic push rod is fixedly connected to the outer wall of the guide sleeve, and the output end of the elastic push rod is fixedly connected to the inner wall of the sliding plate. The elastic push rod supports the sliding plate and drives the guide sleeve to slide and reset on the surface of the sliding plate. A hydraulic push rod is fixedly connected to the surface of the support plate, and the output end of the hydraulic push rod is fixedly connected to the outer wall of the sliding plate. The hydraulic push rod is used to drive the sliding plate to slide on the surface of the support plate for position adjustment.

[0010] According to the above technical solution, a support mechanism is provided on the outer wall of the guide sleeve away from the extrusion wheel. The support mechanism includes an adjusting sleeve, and a limiting rod is fixedly connected to the outer wall of the adjusting sleeve. The limiting rod is used to support the adjusting sleeve, and the outer wall of the limiting rod slides along the inner wall of the guide sleeve to adjust the position of the adjusting sleeve.

[0011] According to the above technical solution, a locking block is threadedly connected to the inner wall of the guide sleeve. The locking block penetrates the inner wall of the guide sleeve and contacts the outer wall of the limiting rod. The locking block is used to lock the position of the limiting rod. A hydraulic push rod two is fixedly connected to the outer wall of the adjusting sleeve on the side away from the guide sleeve. The output end of the hydraulic push rod two is rotatably connected to a pressure plate through a rotating shaft. The hydraulic push rod two is used to drive the pressure plate to slide on the inner wall of the adjusting sleeve. The pressure plate is used to support the bolt head and cooperates with the support ring to clamp the bolt head.

[0012] According to the above technical solution, an anti-slip strip is fixedly connected to one end of the pressure plate near the guide sleeve. The anti-slip strip is made of rubber and is used to increase the friction between the pressure plate and the bolt head. During the threading process, the pressure plate rotates synchronously with the bolt through friction.

[0013] According to the above technical solution, the outer wall of the extrusion wheel is rotatably connected to the inner wall of the bed through a rotating shaft, and the extrusion wheel is driven to rotate by a servo motor installed on the inner wall of the bed. The extrusion wheel is used to perform thread processing on bolts.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention uses a centering mechanism to clamp and support the bolt, preventing it from shaking during processing and affecting the machining accuracy of the thread, thereby increasing the stability of the clamping device for high-strength bolt thread processing.

[0015] 2. The present invention uses a centering mechanism to center the bolt, so that the bolt is kept on the same horizontal plane as the extrusion wheel axis during the thread processing, preventing the bolt from deviating from the horizontal plane of the extrusion wheel axis during processing, which would affect the thread processing accuracy and increase the stability of the clamping device for high-strength bolt thread processing.

[0016] 3. This invention provides support for the bolt head by setting up a support mechanism to prevent the bolt from undergoing axial displacement during processing, which would affect the processing accuracy of the thread. The clamping device for high-strength bolt thread processing also ensures the stability of bolt clamping.

[0017] 4. The present invention uses a support mechanism to support the bolt head during bolt processing, thereby helping to prevent the bolt from shaking during processing, which would affect the processing accuracy of the thread, and increasing the stability of the clamping device for high-strength bolt thread processing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 ; Figure 4 This is a schematic diagram of the structure of the present invention. Figure 4 ; Figure 5 This is a schematic diagram of the centering mechanism of the present invention. Figure 1 ; Figure 6 This is a schematic diagram of the centering mechanism of the present invention. Figure 2 ; Figure 7 This is a schematic diagram of the support mechanism of the present invention. Figure 1 ; Figure 8 This is a schematic diagram of the support mechanism of the present invention. Figure 2 .

[0019] In the diagram: 100, Bed; 101, Pressing Roller; 102, Support Plate; 103, Sliding Plate; 104, Guide Sleeve; 105, Elastic Push Rod; 106, Hydraulic Push Rod I; 107, Adjusting Motor; 200, Centering Mechanism; 201, Guide Plate; 202, Guide Groove I; 203, Support Block; 204, Centering Roller; 205, Adjusting Plate; 206, Guide Groove II; 207, Support Ring; 300, Support Mechanism; 301, Adjusting Sleeve; 302, Limiting Rod; 303, Hydraulic Push Rod II; 304, Locking Block; 305, Pressing Plate; 306, Anti-slip Strip. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1, please refer to Figures 1-6 The present invention provides a technical solution: a clamping device for high-strength bolt thread processing, comprising a bed 100 and a pressing wheel 101, a support plate 102 fixedly connected to the inner wall of the pressing wheel 101, a sliding plate 103 slidably connected to the surface of the support plate 102 via a guide rail, a guide sleeve 104 slidably connected to the surface of the sliding plate 103 via a slide rail, and a centering mechanism 200 provided inside the guide sleeve 104; When a clamping device for high-strength bolt threading clamps a bolt for processing, the bolt axis cannot be kept on the same horizontal plane as the processing wheel axis, and the bolt will wobble during the threading process, resulting in deviations in the thread size and affecting the bolt's tightening effect. Therefore, a centering mechanism 200 is set up to clamp and support the bolt, preventing the bolt from wobble during processing and affecting the thread processing accuracy, increasing the stability of the clamping device for high-strength bolt threading. At the same time, the centering mechanism 200 centers the bolt, ensuring that the bolt is kept on the same horizontal plane as the extrusion wheel 101 axis during the threading process, preventing the bolt from deviating from the horizontal plane of the extrusion wheel 101 axis during processing, affecting the thread processing accuracy, and increasing the stability of the clamping device for high-strength bolt threading. The centering mechanism 200 includes a guide plate 201, the outer wall of which is fixedly connected to the inner wall of the guide sleeve 104. The axis of the guide plate 201 and the axis of the pressing wheel 101 are on the same horizontal plane. A support block 203 is slidably connected to the outer wall of the guide plate 201. A centering wheel 204 is rotatably connected to the inner wall of the support block 203 via a rotating shaft. The centering wheel 204 is supported by the support block 203 and is used to center and support the bolt. A guide groove 202 is formed on the outer wall of the guide plate 201. The groove wall of the guide groove 202 is connected to the support block 204 via a slider. 03. The outer wall is slidably connected. An adjusting plate 205 is slidably connected to the end of the support block 203 away from the guide plate 201. The outer wall of the adjusting plate 205 is rotatably connected to the inner wall of the guide sleeve 104. A second guide groove 206 is opened on the inner wall of the adjusting plate 205. The groove wall of the second guide groove 206 is slidably connected to the outer wall of the support block 203 through a slider. The first guide groove 202 is used to guide and limit the support block 203. The second guide groove 206 is used to guide and limit the support block 203. A support ring 207 is rotatably connected to the end of the adjusting plate 205 away from the support block 203 through a bearing. The support ring 207 is used to support the bolt head. An adjusting motor 107 is fixedly connected to the top of the guide sleeve 104. The output end of the adjusting motor 107 is meshed with the outer wall of the adjusting disc 205 via gears. The adjusting disc 205 is driven to rotate by the adjusting motor 107, causing the support block 203 to be guided simultaneously through guide groove 1 202 and guide groove 206, adjusting it towards the bolt direction. An elastic push rod 105 is fixedly connected to the outer wall of the guide sleeve 104. The output end of the elastic push rod 105 is fixedly connected to the inner wall of the sliding plate 103. The elastic push rod 105, through the sliding plate... 103 supports and drives the guide sleeve 104 to slide and reset on the surface of the sliding plate 103. A hydraulic push rod 106 is fixedly connected to the surface of the support plate 102. The output end of the hydraulic push rod 106 is fixedly connected to the outer wall of the sliding plate 103. The hydraulic push rod 106 is used to drive the sliding plate 103 to slide on the surface of the support plate 102 for position adjustment. The outer wall of the extrusion wheel 101 is rotatably connected to the inner wall of the bed 100 through a rotating shaft. The extrusion wheel 101 is driven to rotate by a servo motor set on the inner wall of the bed 100. The extrusion wheel 101 is used to perform thread processing on the bolt. When the clamping device for high-strength bolt threading is put into use, the bolt is inserted into the guide sleeve 104. The adjusting motor 107 is started to drive the adjusting disc 205 to rotate on the inner wall of the guide sleeve 104. This causes the support block 203 to be guided by the first guide groove 202 and the second guide groove 206, sliding along the gap between the guide disc 201 and the adjusting disc 205. This drives the centering wheel 204 to slide synchronously towards the bolt, contacting the outer wall of the bolt to support it. After clamping the bolt, the bolt is centered so that the bolt axis is on the same horizontal plane as the extrusion wheel 101 axis. After the bolt is clamped, the hydraulic push rod 106 is started to drive the sliding plate 103 to slide on the surface of the support plate 102 towards the extrusion wheel 101. This causes the guide sleeve 104 to move the bolt closer to the extrusion wheel 101, and the bolt is threaded by the extrusion wheel 101. During the processing of the bolt by the extrusion wheel 101, the bolt engages with the thread on the outer wall of the extrusion wheel 101, rotates along the outer wall of the extrusion wheel 101, and moves along the outer wall of the extrusion wheel 101. During the rotation, the bolt is supported by the centering wheel 204 to prevent the bolt from shaking due to the extrusion force on the thread during processing. At the same time, the bolt head is limited by the support ring 207 and rotates synchronously with the bolt head through friction, thus supporting the bolt head. During the sliding of the bolt along the outer wall of the extrusion wheel 101, the bolt is limited by the support ring 207, which drives the guide sleeve 104 to press the elastic push rod 105 to slide along the surface of the sliding plate 103 towards the extrusion wheel 101, so that the centering wheel 204 keeps supporting the outer wall of the bolt, preventing the bolt axis from leaving the horizontal plane where the extrusion wheel 101 is located, and increasing the stability of the thread processing.

[0022] Example 2, based on Example 1, please refer to... Figures 7-8 The present invention provides a technical solution: a support mechanism 300 is provided on the outer wall of the guide sleeve 104 away from the extrusion wheel 101; When a clamping device for high-strength bolt threading clamps a bolt for processing, the bolt axis cannot be kept on the same horizontal plane as the processing wheel axis, and the bolt will wobble during the threading process, resulting in deviations in the thread size and affecting the bolt's tightening effect. Therefore, a support mechanism 300 is set up to support the bolt head to prevent axial displacement of the bolt during processing, which would affect the thread processing accuracy. The clamping device for high-strength bolt threading ensures the stability of bolt clamping, and the support mechanism 300 supports the bolt head during bolt processing, further preventing bolt wobble and affecting the thread processing accuracy, thus increasing the stability of bolt clamping in the high-strength bolt threading clamping device. The support mechanism 300 includes an adjusting sleeve 301. A limiting rod 302 is fixedly connected to the outer wall of the adjusting sleeve 301. The limiting rod 302 supports the adjusting sleeve 301. The outer wall of the limiting rod 302 slides along the inner wall of the guide sleeve 104 to adjust the position of the adjusting sleeve 301. A locking block 304 is threadedly connected to the inner wall of the guide sleeve 104. The locking block 304 penetrates the inner wall of the guide sleeve 104 and contacts the outer wall of the limiting rod 302. The locking block 304 is used to lock the position of the limiting rod 302. A hydraulic push rod is fixedly connected to the outer wall of the adjusting sleeve 301 on the side away from the guide sleeve 104. 303, the output end of hydraulic push rod 303 is rotatably connected to pressure plate 305 via a rotating shaft. Hydraulic push rod 303 is used to drive pressure plate 305 to slide on the inner wall of adjusting sleeve 301. Pressure plate 305 is used to support bolt cap and cooperates with support ring 207 to clamp bolt cap. Anti-slip strip 306 is fixedly connected to the end of pressure plate 305 near guide sleeve 104. Anti-slip strip 306 is made of rubber and is used to increase the friction between pressure plate 305 and bolt cap. Pressure plate 305 rotates synchronously with bolt through friction during thread processing. During the process of inserting the bolt into the guide sleeve 104, the worker rotates the locking block 304 to release the locking of the limiting rod 302, and pushes the adjusting sleeve 301 to cause the limiting rod 302 to slide along the inner wall of the guide sleeve 104 away from the guide sleeve 104. This allows the inner wall of the adjusting sleeve 301 to be adjusted according to the bolt length, accommodating bolts of different lengths for thread processing. After the bolt is inserted into the guide sleeve 104, the worker pushes the bolt to contact the outer wall of the support ring 207, pushes back the adjusting sleeve 301, causing the limiting rod 302 to slide along the inner wall of the guide sleeve 104, and rotates the locking block 304 to limit the movement. After rod 302 is locked, hydraulic push rod 303 is activated to drive pressure plate 305 to slide towards the bolt on the inner wall of adjusting sleeve 301, supporting the bolt and cooperating with support ring 207 to clamp and fix the bolt head, helping to prevent the bolt from shaking during processing. The pressure plate 305 is pressed against the outer wall of the bolt head to compress the anti-slip strip 306, so that the friction between the anti-slip strip 306 and the bolt head, along with the bolt, drives the pressure plate 305 to rotate synchronously during processing, so that the pressure plate 305 keeps clamping and supporting the bolt during bolt processing, increasing the stability of bolt processing.

[0023] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clamping device for high-strength bolt thread processing, comprising a bed (100) and a pressing wheel (101), characterized in that, The inner wall of the extrusion wheel (101) is fixedly connected to a support plate (102), and a sliding plate (103) is slidably connected to the surface of the support plate (102) via a guide rail. A guide sleeve (104) is slidably connected to the surface of the sliding plate (103) via a slide rail. A centering mechanism (200) is provided inside the guide sleeve (104). The centering mechanism (200) includes; The guide disc (201) has its outer wall fixedly connected to the inner wall of the guide sleeve (104). The axis of the guide disc (201) and the axis of the extrusion wheel (101) are located on the same horizontal plane. The outer wall of the guide disc (201) is slidably connected to a support block (203). The inner wall of the support block (203) is rotatably connected to a centering wheel (204) via a rotating shaft. The centering wheel (204) is supported by the support block (203) and is used to center and support the bolt.

2. The clamping device for high-strength bolt thread processing according to claim 1, characterized in that: The outer wall of the guide plate (201) is provided with a guide groove 1 (202). The groove wall of the guide groove 1 (202) is slidably connected to the outer wall of the support block (203) through a slider. An adjustment plate (205) is slidably connected to the end of the support block (203) away from the guide plate (201). The outer wall of the adjustment plate (205) is rotatably connected to the inner wall of the guide sleeve (104). The inner wall of the adjustment plate (205) is provided with a guide groove 2 (206). The groove wall of the guide groove 2 (206) is slidably connected to the outer wall of the support block (203) through a slider. The guide groove 1 (202) is used to guide and limit the support block (203). The guide groove 2 (206) is used to guide and limit the support block (203).

3. The clamping device for high-strength bolt thread processing according to claim 2, characterized in that: The end of the adjusting disc (205) away from the support block (203) is rotatably connected to a support ring (207) via a bearing. The support ring (207) is used to support the bolt head. The top of the guide sleeve (104) is fixedly connected to an adjusting motor (107). The output end of the adjusting motor (107) is meshed with the outer wall of the adjusting disc (205) via a gear. The adjusting disc (205) is driven to rotate by the adjusting motor (107), so that the support block (203) is simultaneously guided by guide groove one (202) and guide groove two (206) and adjusted in the direction of the bolt.

4. The clamping device for high-strength bolt thread processing according to claim 3, characterized in that: An elastic push rod (105) is fixedly connected to the outer wall of the guide sleeve (104). The output end of the elastic push rod (105) is fixedly connected to the inner wall of the sliding plate (103). The elastic push rod (105) supports the sliding plate (103) and drives the guide sleeve (104) to slide and reset on the surface of the sliding plate (103). A hydraulic push rod (106) is fixedly connected to the surface of the support plate (102). The output end of the hydraulic push rod (106) is fixedly connected to the outer wall of the sliding plate (103). The hydraulic push rod (106) is used to drive the sliding plate (103) to slide on the surface of the support plate (102) for position adjustment.

5. A clamping device for high-strength bolt thread processing according to claim 4, characterized in that: A support mechanism (300) is provided on the outer wall of the guide sleeve (104) away from the extrusion wheel (101). The support mechanism (300) includes an adjustment sleeve (301). A limit rod (302) is fixedly connected to the outer wall of the adjustment sleeve (301). The limit rod (302) is used to support the adjustment sleeve (301). The outer wall of the limit rod (302) slides along the inner wall of the guide sleeve (104) to adjust the position of the adjustment sleeve (301).

6. A clamping device for high-strength bolt thread processing according to claim 5, characterized in that: The guide sleeve (104) is threadedly connected to a locking block (304). The locking block (304) penetrates the inner wall of the guide sleeve (104) and contacts the outer wall of the limiting rod (302). The locking block (304) is used to lock the position of the limiting rod (302). The outer wall of the adjusting sleeve (301) away from the guide sleeve (104) is fixedly connected to a hydraulic push rod (303). The output end of the hydraulic push rod (303) is rotatably connected to a pressure plate (305) through a rotating shaft. The hydraulic push rod (303) is used to drive the pressure plate (305) to slide on the inner wall of the adjusting sleeve (301). The pressure plate (305) is used to support the bolt cap and cooperate with the support ring (207) to clamp the bolt cap.

7. A clamping device for high-strength bolt thread processing according to claim 6, characterized in that: The pressure plate (305) is fixedly connected to an anti-slip strip (306) at one end near the guide sleeve (104). The anti-slip strip (306) is made of rubber and is used to increase the friction between the pressure plate (305) and the bolt head. The pressure plate (305) rotates synchronously with the bolt during the threading process through friction.

8. A clamping device for high-strength bolt thread processing according to claim 7, characterized in that: The outer wall of the extrusion wheel (101) is rotatably connected to the inner wall of the bed (100) via a rotating shaft. The extrusion wheel (101) is driven to rotate by a servo motor installed on the inner wall of the bed (100). The extrusion wheel (101) is used to perform thread processing on bolts.

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