Automatic rough machining production device for bolts and nuts

Abstract

The invention relates to the technical field of bolt and nut rough machining, and discloses a bolt and nut automatic rough machining production device which comprises a machining device, a hammering device is fixedly arranged at the top of the outer wall of the machining device, a three-jaw chuck is fixedly arranged at the top of the outer wall of the machining device, and a fixing block is fixedly arranged at the top of the outer wall of the machining device. A driving device is fixedly arranged at the top of the outer wall of the machining device, a connecting rod is driven to move through a three-jaw chuck, when a contact block moves by a certain distance, the contact block makes contact with a machined object, a toothed bar synchronously moves along with the connecting rod, when the toothed bar moves by a certain distance, a limiting block is driven to rotate, and when the toothed bar stops moving along with rotation of the limiting block, the toothed bar is driven to move by a certain distance. The top inclined face of the limiting block makes contact with the bottom of the outer wall of the contact block, the contact block is limited through the multiple clamping grooves in the bottom of the outer wall of the contact block, bolts of different sizes are effectively fixed, it is ensured that a metal flow line is continuous and complete, and therefore the fatigue resistance and size precision of the bolts are improved.

Description

Technical Field

[0001] This invention relates to the field of bolt and nut rough machining technology, specifically to an automated bolt and nut rough machining production device. Background Technology

[0002] The core process of automated rough machining equipment for bolts and nuts is cold heading. Its working principle is based on applying pressure to metal materials at room temperature, causing plastic deformation, thereby efficiently and precisely shaping the fastener into the desired form. This type of equipment typically uses multi-station automatic cold heading machines to achieve continuous and automated production.

[0003] In this process, workers place bolts and nuts that require rough machining into a bolt forming machine for forging. Considering that when dealing with bolts and nuts of different sizes and shapes, it is impossible to effectively fix the bolts and nuts during rough machining, which may cause the bolts and nuts to shift or vibrate under stress, resulting in dimensional deviations, shape errors (such as bending and eccentricity), and deterioration of surface roughness, the following solutions are proposed to address the above problems. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides an automated rough machining production device for bolts and nuts, including a machining device, a hammer pressing device fixedly installed on the top of the outer wall of the machining device, a three-grip chuck fixedly installed on the top of the outer wall of the machining device, a fixing block fixedly installed on the top of the outer wall of the machining device, and a driving device fixedly installed on the top of the outer wall of the machining device, and further including: The clamping mechanism is slidably disposed on the inner wall of the fixed block; The contact mechanism is slidably disposed on the inner wall of the clamping mechanism; The protective mechanism is rotatably mounted on the top of the outer wall of the processing device.

[0005] Preferably, the clamping mechanism includes: The force-applying component is slidably disposed on the inner wall of the fixed block; A rotating assembly is rotatably mounted on the inner wall of the fixed block; The three-jaw chuck moves the force application component and causes the rotating component to rotate.

[0006] Preferably, the contact mechanism includes: The movable component is slidably disposed on the inner wall of the force-applying component; The control component is fixedly installed on the inner wall of the moving component; Specifically, when the rotating component starts to rotate and is about to stop, a thrust is applied to the control component.

[0007] Preferably, the protection mechanism includes: A passive component, which is rotatably mounted on the outer wall of the processing device; A cleaning component is rotatably mounted on the outer wall of the processing device. When the three-grip chuck is closed, the cleaning component rotates accordingly.

[0008] Preferably, the force-applying component includes a connecting rod fixedly connected to the outer wall of the three-grip chuck, a contact block slidably connected to the left end of the inner wall of the connecting rod, a spring fixedly connected to the right end of the outer wall of the contact block, and a toothed rod fixedly connected to the left end of the outer wall of the connecting rod. The three-jaw chuck drives the connecting rod to move, the contact block is forced to move inward into the connecting rod, and the toothed rod moves synchronously with the connecting rod.

[0009] Preferably, the rotating assembly includes a gear rotatably connected to the inner wall of the fixed block, a torsion spring sleeved on the inner wall of the fixed block, and a limiting block fixedly connected to the side wall of the gear. When the rack moves a certain distance, it causes the limiting block to rotate. The top inclined surface of the limiting block contacts the bottom of the outer wall of the contact block, thus limiting the contact block.

[0010] Preferably, the moving component includes a movable plate slidably connected to the bottom of the inner wall of the contact block, a torsion spring is sleeved on the inner wall of the contact block, and a contact plate is rotatably connected to the inner wall of the contact block. Specifically, when the limiting block rotates and is about to restrict the contact block, a pushing force is generated on the movable plate, forcing the movable plate to move.

[0011] Preferably, the control component includes a spring sheet fixedly connected to the inner wall of the movable plate, a triangular wedge fixedly connected to the top of the outer wall of the spring sheet, and a telescopic rod rotatably connected to the top of the outer wall of the contact plate. When the movable plate moves, the contact plate loses the restraint of the triangular wedge and rotates due to the elastic force of the torsion spring. When it rotates to a certain angle, it contacts the outer wall of the workpiece and continuously applies a thrust.

[0012] Preferably, the passive component includes a rotating rod rotatably connected to the outer wall of the processing device, a plurality of swing plates rotatably connected to the side wall of the rotating rod, a spring fixedly connected to the bottom of the outer wall of the swing plates, a connecting rod fixedly connected to the outer wall of the three-grip chuck, and a plurality of triangular blocks slidably connected to the bottom of the inner wall of the connecting rod. When the three-grip chuck is activated, the connecting rod moves as the three-grip chuck is activated. When the three-grip chuck is deactivated, the bolt and nut lose their clamping force and fall onto the surface of the swing plate. At this time, the triangular block contacts several protrusions on the side wall of the rotating rod with a right angle, and drives the rotating rod to rotate.

[0013] Preferably, the cleaning component includes a torsion spring II sleeved on the cylindrical protrusion on the outer wall of the processing device, a rotating plate rotatably connected to the cylindrical protrusion on the outer wall of the processing device, and several collision plates fixedly connected to the side wall of the rotating rod. When the rotating rod rotates, it drives several collision plates to rotate, forcing the rotating plates to rotate. Through the rotation of the rotating plates, the scraper comes into contact with the surface of the hammer head of the hammer pressing device.

[0014] The present invention has the following beneficial effects: (1) The present invention uses a three-grip chuck to drive the connecting rod to move. When the contact block moves a certain distance, it contacts the workpiece. The contact block is forced to move inward into the connecting rod. The rack moves synchronously with the connecting rod. When the rack moves a certain distance, it will drive the limiting block to rotate. As the limiting block rotates, when the rack stops moving, the top inclined surface of the limiting block contacts the bottom of the outer wall of the contact block. The contact block is restricted by several slots on the bottom of the outer wall of the contact block. The above components can effectively fix bolts of different sizes, ensuring the continuous and complete metal flow lines, thereby improving the fatigue strength and dimensional accuracy of the bolts.

[0015] (2) When the limiting block rotates and is about to restrict the contact block, the top of the outer wall of the limiting block contacts the triangular inclined surface at the bottom of the outer wall of the movable plate, generating a thrust on the movable plate and forcing the movable plate to move. This causes the triangular inclined block to move downward under the limiting force of the contact plate. The contact plate loses the restriction of the triangular inclined block and rotates through the elastic force of the torsion spring. When it rotates to a certain angle, it contacts the outer wall of the workpiece and continues to apply a thrust. When the contact block moves into the connecting rod, the telescopic rod is compressed by force. The above-mentioned components increase the contact surface with the bolt, improve the friction, and reduce the displacement caused by the hammer.

[0016] (3) When the rough machining of the bolt and nut is completed, the three-jaw chuck is closed. At this time, the bolt and nut lose the clamping force and fall on the surface of the swing plate. When they come into contact with the swing plate, the swing plate rotates under the force and applies pressure to the spring. When the three-jaw chuck is closed, the connecting rod moves to the right. At this time, the triangular block contacts several protrusions on the side wall of the rotating rod with a right angle and drives the rotating rod to rotate. The above components slow down the descent speed of the bolt, effectively reduce the collision with hard objects, and improve the fatigue strength and surface integrity of the bolt.

[0017] (4) When the rotating rod rotates, it drives several collision plates to rotate. When the collision plates rotate, they contact the bottom of the outer wall of the rotating plate and apply a thrust to it, forcing the rotating plate to rotate. At the same time as the rotation, pressure is applied to the second torsion spring, forcing the second torsion spring to be compressed and accumulating potential energy. At the same time as the rotating plate rotates, a scraper is provided on the top of the inner wall of the rotating plate. Through the rotation of the rotating plate, the scraper contacts the surface of the hammer head of the hammer pressing device. The above components effectively remove the adhering substances on the surface of the hammer pressing device, improve the accuracy of each strike position and the uniform force transmission effect, and avoid forging size deviation or surface indentation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention; Figure 3 This is a schematic cross-sectional view of the force-applying component of the present invention; Figure 4 This is a schematic cross-sectional view of the rotating component of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle; Figure 6 This is a schematic cross-sectional view of the bottom of the force-applying component of the present invention; Figure 7 This is a cross-sectional schematic diagram of the contact mechanism of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of point B in the middle; Figure 9 This is a schematic cross-sectional view of the control component of the present invention; Figure 10 For the present invention Figure 9 Enlarged view of point C in the middle; Figure 11 This is a schematic diagram of some parts in the control assembly of the present invention; Figure 12 This is a cross-sectional schematic diagram of the protection mechanism of the present invention; Figure 13 This is a cross-sectional schematic diagram of the passive component of the present invention; Figure 14 This is a schematic cross-sectional view of the cleaning component of the present invention; Figure 15For the present invention Figure 14 Enlarged diagram of point D in the middle.

[0020] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Clamping mechanism; 11. Force application component; 12. Rotating component; 13. Processing device; 14. Hammering device; 15. Three-jaw chuck; 16. Fixing block; 17. Drive device; 111. Connecting rod; 112. Contact block; 113. Spring; 114. Gear rack; 121. Gear; 122. Torsion spring; 123. Limiting block; 2. Contact mechanism; 21. Moving component; 22. Control component; 211. Movable plate; 212. Torsion spring one; 213. Contact plate; 221. Spring piece; 222. Triangular wedge block; 223. Telescopic rod; 3. Protection mechanism; 31. Passive component; 32. Cleaning component; 311. Rotating rod; 312. Swinging plate; 313. Spring one; 314. Connecting rod one; 315. Triangular block; 321. Torsion spring two; 322. Rotating plate; 323. Collision plate. Detailed Implementation

[0021] 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.

[0022] Example 1, please refer to Figures 1-12 This invention relates to an automated rough machining production device for bolts and nuts, comprising a machining device 13, a hammer pressing device 14 fixedly mounted on the top of the outer wall of the machining device 13, a three-grip chuck 15 fixedly mounted on the top of the outer wall of the machining device 13, a fixing block 16 fixedly mounted on the top of the outer wall of the machining device 13, and a driving device 17 fixedly mounted on the top of the outer wall of the machining device 13, and further comprising: Clamping mechanism 1 is slidably disposed on the inner wall of fixed block 16; Contact mechanism 2 is slidably disposed on the inner wall of clamping mechanism 1; The protective mechanism 3 is rotatably mounted on the top of the outer wall of the processing device 13.

[0023] Clamping mechanism 1 includes: Force application component 11 is slidably disposed on the inner wall of fixed block 16; Rotating component 12 is rotatably mounted on the inner wall of fixed block 16; The operator starts the drive device 17, which clamps the bolts and nuts that need to be rough-machined and places them inside the fixing block 16. The bolts and nuts are then fixed by the three-jaw chuck 15. The hammer pressing device 14 is then started to hammer the bolts and nuts. When the three-jaw chuck 15 is started, it drives the force application component 11 to move. When the force application component 11 moves a certain distance, it comes into contact with the rotating component 12 and drives the rotating component 12 to rotate.

[0024] Contact mechanism 2 includes: The movable component 21 is slidably disposed on the inner wall of the force-applying component 11; Control component 22 is fixedly installed on the inner wall of the moving component 21; When the rotating component 12 rotates and is about to stop, it comes into contact with the moving component 21 and pushes the moving component 21 to move, while simultaneously applying a thrust to the control component 22.

[0025] Protection agency 3 includes: Passive component 31 is rotatably mounted on the outer wall of the processing device 13; Cleaning component 32 is rotatably mounted on the outer wall of processing device 13; When the three-grip chuck 15 is started, the passive component 31 does not rotate. When the three-grip chuck 15 is closed, the passive component 31 rotates, and the cleaning component 32 rotates accordingly.

[0026] Example 2, please refer to Figures 3-15 The present invention is an automated rough machining production device for bolts and nuts. Based on Example 1, the force application component 11 includes a connecting rod 111 fixedly connected to the outer wall of the three-grip chuck 15. A contact block 112 is slidably connected to the left end of the inner wall of the connecting rod 111. A spring 113 is fixedly connected to the right end of the outer wall of the contact block 112. A toothed rod 114 is fixedly connected to the left end of the outer wall of the connecting rod 111. The operator starts the drive device 17, which clamps the bolts and nuts to be rough-machined and places them inside the fixing block 16. The bolts and nuts are then fixed by the three-jaw chuck 15, and the hammer pressing device 14 is started to hammer them. When the three-jaw chuck 15 is started, it drives the connecting rod 111 to move, and the contact block 112 moves accordingly. When the contact block 112 moves a certain distance, it contacts the workpiece. As the connecting rod 111 continues to move, the contact block 112 is forced to move inward into the connecting rod 111. At the same time as the contact block 112 moves, it applies a pushing force to the spring 113, forcing the spring 113 to be compressed and accumulate potential energy. The rack 114 moves synchronously with the connecting rod 111.

[0027] The rotating assembly 12 includes a gear 121 rotatably connected to the inner wall of the fixed block 16, a torsion spring 122 sleeved on the inner wall of the fixed block 16, and a limiting block 123 fixedly connected to the side wall of the gear 121. When the rack 114 moves a certain distance, it contacts the gear 121 and drives the gear 121 to rotate. At the same time as the gear 121 rotates, it drives the limiting block 123 to rotate. When the limiting block 123 rotates, it applies an external force to the torsion spring 122, forcing the torsion spring 122 to be compressed and accumulate potential energy. As the limiting block 123 rotates, when the rack 114 stops moving, the top inclined surface of the limiting block 123 contacts the bottom of the outer wall of the contact block 112, and the contact block 112 is restricted by several slots on the bottom of the outer wall of the contact block 112.

[0028] The movable component 21 includes a movable plate 211 that is slidably connected to the bottom of the inner wall of the contact block 112, a torsion spring 212 is sleeved on the inner wall of the contact block 112, and a contact plate 213 is rotatably connected to the inner wall of the contact block 112. When the limiting block 123 rotates and is about to restrict the contact block 112, the top of the outer wall of the limiting block 123 comes into contact with the triangular inclined surface at the bottom of the outer wall of the movable plate 211, and the rotation of the limiting block 123 generates a pushing force on the movable plate 211, forcing the movable plate 211 to move.

[0029] The control component 22 includes a spring piece 221 fixedly connected to the inner wall of the movable plate 211, a triangular inclined block 222 fixedly connected to the top of the outer wall of the spring piece 221, and a telescopic rod 223 rotatably connected to the top of the outer wall of the contact plate 213. When the movable plate 211 moves, it drives the spring piece 221 and the triangular wedge block 222 to move synchronously. The triangular wedge block 222 is restricted by the contact plate 213 during its movement. As the movable plate 211 moves, the triangular wedge block 222, constrained by the contact plate 213, moves downwards, applying pressure to the spring piece 221, forcing it to compress and accumulate potential energy. At this point, the contact plate 213 loses the restriction of the triangular wedge block 222 and rotates due to the elastic force of the torsion spring 212. Upon rotating a certain angle, it contacts the outer wall of the workpiece and continuously applies a pushing force. When the contact block 112 moves inwards towards the connecting rod 111, the telescopic rod 223 contracts under pressure. When the forging of the workpiece is completed, the telescopic rod closes. The three-jaw chuck 15 drives the connecting rod 111 to move to the initial position. At this time, the contact block 112 is no longer restricted by the workpiece and moves outward under the elastic force of the spring 113. During the movement, the telescopic rod 223 is gradually stretched. When the telescopic rod 223 is stretched, it applies a pulling force to the contact plate 213, forcing the contact plate 213 to rotate and apply pressure to the torsion spring 212, causing the torsion spring 212 to be compressed and accumulate potential energy. When the contact plate 213 is about to reset, it applies a pushing force to the triangular wedge block 222, forcing the triangular wedge block 222 to first drive the movable plate 211 to move to the left. As the contact plate 213 continues to apply pressure, the triangular wedge block 222 is forced to move downward and applies pressure to the spring piece 221. At this time, the contact plate 213 completes the reset.

[0030] The passive component 31 includes a rotating rod 311 rotatably connected to the outer wall of the processing device 13, a plurality of swing plates 312 rotatably connected to the side wall of the rotating rod 311, a spring 313 fixedly connected to the bottom of the outer wall of the swing plate 312, a connecting rod 314 fixedly connected to the outer wall of the three-grip chuck 15, and a plurality of triangular blocks 315 slidably connected to the bottom of the inner wall of the connecting rod 314. When the three-jaw chuck 15 is activated, it moves the connecting rod 314, causing several triangular blocks 315 to move as well. During this movement, the inclined surfaces of the triangular blocks 315 contact several protrusions on the surface of the rotating rod 311. This contact prevents the rotating rod 311 from rotating and creates resistance, causing the triangular blocks 315 to move upwards. This upward movement applies a pushing force to the spring and compresses it. After the rough machining of the bolt and nut is completed, the three-jaw chuck 15 is deactivated. At this time, the bolt and nut lose their clamping force and fall onto the surface of the swing plate 312. When they come into contact with the swing plate 312, the swing plate 312 rotates under force and applies pressure to the spring 313. When the three-jaw chuck 15 is closed, it drives the connecting rod 314 to move to the right. At this time, the triangular block 315 contacts several protrusions on the side wall of the rotating rod 311 with a right angle surface, and drives the rotating rod 311 to rotate. Through continuous rotation, the bolt and nut are brought to the lowest position. The spring force formed by the inclined surface of the swing plate 312 and the spring 313 releases them.

[0031] The cleaning component 32 includes a torsion spring 321 sleeved on the cylindrical protrusion on the outer wall of the processing device 13, a rotating plate 322 rotatably connected to the cylindrical protrusion on the outer wall of the processing device 13, and several collision plates 323 fixedly connected to the side wall of the rotating rod 311. When the rotating rod 311 rotates, it drives several collision plates 323 to rotate. When the collision plates 323 rotate, they contact the bottom of the outer wall of the rotating plate 322 and apply a pushing force to it, forcing the rotating plate 322 to rotate. At the same time as rotating, pressure is applied to the second torsion spring 321, forcing the second torsion spring 321 to be compressed and accumulate potential energy. While the rotating plate 322 rotates, a scraper is provided on the top of the inner wall of the rotating plate 322. Through the rotation of the rotating plate 322, the scraper contacts the surface of the hammer head of the hammer pressing device 14. When the collision plate 323 rotates at a certain angle and disengages from contact with the bottom of the outer wall of the rotating plate 322, the rotating plate 322 completes the reset by the elastic force of the second torsion spring 321.

[0032] One specific application of this embodiment is as follows: the worker starts the drive device 17, which clamps the bolts and nuts that need to be rough-machined and places them inside the fixing block 16. The bolts and nuts are then fixed by the three-jaw chuck 15, and the hammer pressing device 14 is started to hammer the bolts and nuts.

[0033] To address the issue of bolts and nuts of varying sizes and shapes failing to be effectively secured during rough machining, leading to displacement or vibration under stress and resulting in dimensional deviations, shape errors (such as bending or eccentricity), and deterioration of surface roughness, a three-jaw chuck 15 is used to move the connecting rod 111. The contact block 112 follows suit, and after moving a certain distance, it contacts the workpiece. As the connecting rod 111 continues to move, the contact block 112 is forced to move inwards towards the connecting rod 111. Simultaneously, the contact block 112 applies a pushing force to the spring 113, compressing it and accumulating potential energy. The rack 114 then moves synchronously with the connecting rod 111. When the rack 114 moves a certain distance, it contacts the gear 121 and drives the gear 121 to rotate. At the same time as the gear 121 rotates, it drives the limiting block 123 to rotate. When the limiting block 123 rotates, it applies an external force to the torsion spring 122, forcing the torsion spring 122 to be compressed and accumulate potential energy. As the limiting block 123 rotates, when the rack 114 stops moving, the top inclined surface of the limiting block 123 contacts the bottom of the outer wall of the contact block 112, and the contact block 112 is restricted by several slots on the bottom of the outer wall of the contact block 112. The above components effectively fix bolts of different sizes, ensuring the continuity and integrity of the metal flow lines, thereby improving the fatigue strength and dimensional accuracy of the bolts.

[0034] Utilizing the rotational characteristic of the aforementioned limiting block 123, when the limiting block 123 rotates and is about to restrict the contact block 112, the top of the outer wall of the limiting block 123 contacts the triangular inclined surface at the bottom of the outer wall of the movable plate 211. Through the rotation of the limiting block 123, a pushing force is generated on the movable plate 211, forcing it to move. When the movable plate 211 moves, it drives the spring piece 221 and the triangular inclined block 222 to move synchronously. The triangular inclined block 222 is restricted by the contact plate 213 during its movement, and... During the movement of plate 211, the triangular wedge block 222, restrained by the contact plate 213, moves downward. This downward movement applies pressure to the spring piece 221, forcing it to compress and accumulate potential energy. At this point, the contact plate 213 loses the restraint of the triangular wedge block 222 and rotates due to the elastic force of the torsion spring 212. Upon rotating a certain angle, it contacts the outer wall of the workpiece and continuously applies a pushing force. As the contact block 112 moves inward towards the connecting rod 111, the telescopic rod 223 contracts under pressure. When the forging of the workpiece is completed... When the three-jaw chuck 15 is closed, the connecting rod 111 moves to its initial position. At this time, the contact block 112 is no longer restricted by the workpiece and moves outward under the elastic force of the spring 113. During the movement, the telescopic rod 223 is gradually stretched. When the telescopic rod 223 is stretched, it applies a pulling force to the contact plate 213, forcing the contact plate 213 to rotate and applying pressure to the torsion spring 212, causing the torsion spring 212 to be compressed and accumulate potential energy. When the contact plate 213 is about to return to its original position, it applies a pushing force to the triangular wedge block 222, forcing the triangular wedge block 222 to return to its original position. 22 First, the movable plate 211 moves to the left side of the inner wall of the contact block 112. As the contact plate 213 continues to apply pressure, the triangular inclined block 222 is forced to move downward and applies pressure to the spring piece 221. At this time, the contact plate 213 completes the reset. During forging, the bolt is in a high-temperature plastic state. Even if it is externally fixed, it may still produce a small displacement at the moment of being hammered, causing the bolt head or shank shape to deviate from the design tolerance, affecting subsequent assembly. By increasing the contact surface with the bolt through the above components, the friction is increased and the displacement generated by hammering is reduced.

[0035] When the three-jaw chuck 15 is activated, it moves the connecting rod 314, causing several triangular blocks 315 to move as well. During this movement, the inclined surfaces of the triangular blocks 315 contact several protrusions on the surface of the rotating rod 311. In this contact, the triangular blocks cannot rotate and are subjected to resistance from the rotating rod 311, causing them to move upwards. This upward movement applies a pushing force to the spring and compresses it. When the rough machining of the bolt and nut is completed, the three-jaw chuck 15 is closed. At this point, the bolt and nut lose their clamping force and fall onto the surface of the swing plate 312. Upon contact with the swing plate 312... The swing plate 312 rotates under force and applies pressure to the spring 313. When the three-jaw chuck 15 is closed, it drives the connecting rod 314 to move to the right. At this time, the triangular block 315 contacts several protrusions on the side wall of the rotating rod 311 with a right angle surface, and drives the rotating rod 311 to rotate. The forged bolt is usually in a high temperature state. If it falls rapidly and hits a hard object at this time, it may cause local rapid cooling or subsequent damage due to mechanical impact, resulting in thermal stress concentration, or even microcracks or plastic deformation. By delaying the descent speed of the bolt through the above components, the collision with the hard object is effectively mitigated, and the fatigue strength and surface integrity of the bolt are improved.

[0036] Utilizing the rotational characteristic of the aforementioned rotating rod 311, when the rotating rod 311 rotates, it drives several collision plates 323 to rotate. As the collision plates 323 rotate, they contact the bottom of the outer wall of the rotating plate 322 and apply a pushing force, forcing the rotating plate 322 to rotate. Simultaneously, pressure is applied to the second torsion spring 321, forcing it to compress and accumulate potential energy. A scraper is provided on the top of the inner wall of the rotating plate 322, moving with the rotating plate 322... The rotation of the rotating plate 322 causes the scraper to contact the surface of the hammer head of the hammer pressing device 14. When the collision plate 323 rotates at a certain angle and disengages from the bottom of the outer wall of the rotating plate 322, the rotating plate 322 is reset by the elastic force of the torsion spring 321. During the high-temperature forging process, if the iron oxide scale generated on the surface of the bolt blank is not completely removed, it will adhere to the surface of the hammer pressing device 14, resulting in uneven hammering or accelerated mold wear. In subsequent hammering processes, it will press into or scrape the bolt surface, resulting in surface defects such as scratches, pits, and dents. The above components effectively remove the adhering substances from the surface of the hammer pressing device 14, improve the accuracy of each strike position and the uniformity of force transmission, and avoid forging dimensional deviations or surface indentations.

[0037] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An automated rough machining production device for bolts and nuts, comprising a machining device (13), wherein a hammer pressing device (14) is fixedly disposed on the top of the outer wall of the machining device (13), a three-grip chuck (15) is fixedly disposed on the top of the outer wall of the machining device (13), a fixing block (16) is fixedly disposed on the top of the outer wall of the machining device (13), and a driving device (17) is fixedly disposed on the top of the outer wall of the machining device (13), characterized in that, Also includes: A clamping mechanism (1) is slidably disposed on the inner wall of a fixed block (16); Contact mechanism (2), which is slidably disposed on the inner wall of clamping mechanism (1); The protective mechanism (3) is rotatably mounted on the top of the outer wall of the processing device (13).

2. The automated rough machining production device for bolts and nuts according to claim 1, characterized in that: The clamping mechanism (1) includes: Force application component (11), which is slidably disposed on the inner wall of the fixed block (16); Rotating assembly (12), which is rotatably disposed on the inner wall of the fixed block (16); The worker starts the drive device (17), clamps the bolts and nuts that need to be rough-machined and places them inside the fixing block (16) through the drive device (17), fixes them through the three-grip chuck (15), and starts the hammer pressing device (14) to hammer the bolts and nuts.

3. The automated rough machining production device for bolts and nuts according to claim 2, characterized in that: The contact mechanism (2) includes: A movable component (21) is slidably disposed on the inner wall of the force-applying component (11); The control component (22) is fixedly disposed on the inner wall of the moving component (21).

4. The automated rough machining production device for bolts and nuts according to claim 3, characterized in that: The protection mechanism (3) includes: Passive component (31), which is rotatably disposed on the outer wall of the processing device (13); A cleaning component (32) is rotatably disposed on the outer wall of the processing device (13).

5. The automated rough machining production device for bolts and nuts according to claim 4, characterized in that: The force application component (11) includes a connecting rod (111) fixedly connected to the outer wall of the three-grip chuck (15). A contact block (112) is slidably connected to the left end of the inner wall of the connecting rod (111). A spring (113) is fixedly connected to the right end of the outer wall of the contact block (112). A toothed rod (114) is fixedly connected to the left end of the outer wall of the connecting rod (111). The connecting rod (111) is slidably connected to the inner wall of the fixed block (16), and the end of the spring (113) away from the contact block (112) is fixedly connected to the inner wall of the connecting rod (111).

6. The automated rough machining production device for bolts and nuts according to claim 5, characterized in that: The rotating assembly (12) includes a gear (121) rotatably connected to the inner wall of the fixed block (16), a torsion spring (122) is sleeved on the inner wall of the fixed block (16), and a limiting block (123) is fixedly connected to the side wall of the gear (121). The bottom of the outer wall of the rack (114) meshes with the gear (121), the limiting block (123) is rotatably connected to the inner wall of the fixed block (16), and the torsion spring (122) acts on the inner wall of the limiting block (123).

7. The automated rough machining production device for bolts and nuts according to claim 6, characterized in that: The moving component (21) includes a movable plate (211) slidably connected to the bottom of the inner wall of the contact block (112), a torsion spring (212) is sleeved on the inner wall of the contact block (112), and a contact plate (213) is rotatably connected to the inner wall of the contact block (112). The torsion spring (212) acts on the inner wall of the contact plate (213).

8. The automated rough machining production device for bolts and nuts according to claim 7, characterized in that: The control component (22) includes a spring piece (221) fixedly connected to the inner wall of the movable plate (211), a triangular wedge block (222) fixedly connected to the top of the outer wall of the spring piece (221), and a telescopic rod (223) rotatably connected to the top of the outer wall of the contact plate (213). The triangular inclined block (222) is slidably connected to the inner wall of the movable plate (211), and the end of the telescopic rod (223) away from the contact block (112) is rotatably connected to the top of the outer wall of the connecting rod (111).

9. The automated rough machining production device for bolts and nuts according to claim 7, characterized in that: The passive component (31) includes a rotating rod (311) rotatably connected to the outer wall of the processing device (13). Several swing plates (312) are rotatably connected to the side wall of the rotating rod (311). A spring (313) is fixedly connected to the bottom of the outer wall of the swing plate (312). A connecting rod (314) is fixedly connected to the outer wall of the three-grip chuck (15). Several triangular blocks (315) are slidably connected to the bottom of the inner wall of the connecting rod (314). Among them, several protrusions on the side wall of the rotating rod (311) mesh with several triangular blocks (315), and the end of the spring (313) away from the swing plate (312) is fixedly connected to the inner wall of the rotating rod (311).

10. The automated rough machining production device for bolts and nuts according to claim 9, characterized in that: The cleaning component (32) includes a torsion spring (321) sleeved on the cylindrical protrusion on the outer wall of the processing device (13), a rotating plate (322) is rotatably connected to the cylindrical protrusion on the outer wall of the processing device (13), and several collision plates (323) are fixedly connected to the side wall of the rotating rod (311). The second torsion spring (321) acts on the inner wall of the rotating plate (322).

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