High-strength fastener processing equipment for railway engineering construction

Abstract

The present application relates to the technical field of fastener processing, in particular to a high-strength fastener processing equipment for railway engineering construction, which comprises a pushing unit and a side plate arranged in an up-down manner, the pushing unit is used for pushing the fastener to move in the vertical direction, and a protrusion is arranged on one side wall of the side plate; the blank is subjected to thread rolling treatment by adopting the mode of several thread rolling disc combinations, which effectively reduces the processing difficulty of the thread rolling disc, only needs to process the thread rolling discs one by one, has low cost, is convenient to process, and when one thread rolling disc on the thread rolling wheel is damaged, the new thread rolling disc can be directly replaced, without the need to replace the whole thread rolling wheel, thereby effectively reducing the loss; by utilizing the same direction rotation of the two thread rolling wheels and the up-down movement of the blank on the different thread rolling wheels, the threads in different directions can be rolled and pressed on the blank, thereby realizing the rapid processing of the bidirectional threads, and without the need to separately design the die, the cost investment is lower.

Description

Technical Field

[0001] This invention relates to the technical field of fastener processing, and in particular to a high-strength fastener processing equipment for railway engineering construction. Background Technology

[0002] In railway engineering construction, bolts are one of the most commonly used high-strength fasteners, ensuring the safety and reliability of track structures, bridge supports, contact wire supports, and various assembly nodes. With the development of technology, in order to improve the anti-loosening performance and seismic performance of bolts, bidirectional bolts are gradually replacing traditional unidirectional bolts. Bidirectional bolts can use the two threads on them to cooperate with two nuts with different directions of rotation to achieve a self-locking function. At present, the industry generally uses thread rolling plates or thread rolling wheels to cold roll the bolt blanks for mass production of bolt external threads. This process forms the thread streamline through plastic deformation, which has advantages such as high strength, high efficiency, and high material utilization compared to cutting threads.

[0003] However, since the threads of a two-way bolt have two directions, thread rolling dies with different directions of rotation are required to process the bolt. Furthermore, since the thread rolling dies (including thread rolling plates and thread rolling wheels) used in current mainstream equipment are usually of an integral structure, the densely packed thread teeth on their working surfaces are machined as a whole with high precision. Therefore, the processing cost is high and the processing difficulty is great. Once some of the thread teeth on the die are damaged, the entire die can no longer be used. This not only wastes precious metal die materials, but also makes the amortization cost of the die for a single fastener remain high. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a high-strength fastener processing equipment for railway engineering construction, the specific technical solution of which is as follows: The present invention provides a high-strength fastener processing equipment for railway engineering construction, comprising a top-pushing unit and a side plate distributed vertically. The top-pushing unit is used to push the fastener to move in the vertical direction. A protrusion is provided on one side wall of the side plate, and a thread rolling wheel capable of rotating is provided on both sides of the protrusion. The area between the thread rolling wheel and the protrusion is set as a thread rolling seam. The thread rolling wheel is composed of several thread rolling discs, and the outer circumferential wall of the thread rolling discs has thread rolling patterns for pressing grooves on fasteners.

[0005] Furthermore, the width of the thread rolling gap gradually decreases along the movement direction of the blank.

[0006] Furthermore, a toggle structure is provided between the two thread rolling wheels. The toggle structure includes a toggle plate movably disposed on the protrusion. The toggle plate is connected to the side plate by a spring sheet, and the spring sheet is used to push the toggle plate to tilt toward one of the thread rolling wheels.

[0007] Furthermore, the pushing unit includes a movable platform, a fixed sleeve vertically installed at the bottom of the movable platform, and an insert pin slidably located within the fixed sleeve. The inner wall of the fixed sleeve has two spiral grooves, one with opposite spiral directions, and the two ends of the first spiral groove and the second spiral groove are correspondingly connected. Along the axis of the fixed sleeve, the depth of the first spiral groove gradually decreases, and one end of the first spiral groove corresponds to the inner wall of the fixed sleeve. A cavity is formed within the insert pin, and a guide sleeve is slidably disposed within the cavity, with the end of the guide sleeve extending beyond the insert pin. A guide pin is slidably inserted within the guide sleeve. The guide sleeve and the guide pin are used in conjunction with the first spiral groove and the second spiral groove, respectively. Two elastic bodies (five) are disposed within the cavity and are respectively connected to the guide sleeve and the guide pin. The insert and the fixing sleeve are connected by an elastic body, and a clamping structure for fixing the fastener is provided at the bottom of the insert.

[0008] Furthermore, the clamping structure includes a support column disposed at the bottom of the insertion post, a movable ring slidably sleeved on the support column, and an elastic body II connecting the support column and the movable ring. An inclined groove coplanar with the axis of the support column is provided at the bottom of the support column, and a side pressure body is slidably disposed in the inclined groove. The side pressure body and the movable ring are slidably connected along the radial direction of the support column.

[0009] Furthermore, the processing equipment also includes a top plate, two transmission wheels rotatably mounted on the top plate, and a transmission chain connecting the two transmission wheels. Annular grooves with the same shape as the top plate and the transmission chain are provided on both the upper and lower end faces of the top plate. The push unit is provided in several parts, and a U-shaped frame is provided on the moving platform. The U-shaped frame is connected to the transmission chain through a connecting plate. Four sliding columns are provided on the U-shaped frame. The four sliding columns are divided into two groups and are used in conjunction with the two annular grooves respectively.

[0010] Furthermore, the connecting plate and the U-shaped frame are slidably disposed relative to each other, and are connected by an elastic body.

[0011] Furthermore, the mobile platform and the U-shaped frame are slidably arranged relative to each other, and are connected by an elastic body.

[0012] The beneficial effects of this invention are as follows: By using a combination of several thread rolling discs and thread rolling wheels to perform thread rolling on the blank, the processing difficulty of the thread rolling wheels is effectively reduced. Only the thread rolling discs need to be processed one by one, which is lower in cost and more convenient in processing. Furthermore, when one thread rolling disc on the thread rolling wheel is damaged, a new thread rolling disc can be directly replaced without replacing the entire thread rolling wheel, effectively reducing wear. By using two thread rolling wheels to rotate in the same direction and the blank to move up and down on different thread rolling wheels, threads in different directions can be rolled on the blank, thereby achieving rapid processing of bidirectional threads. Moreover, there is no need to design a separate mold, which further reduces the cost. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 A schematic diagram of the central top plate and its superstructure; Figure 3 yes Figure 1 Schematic diagram of the middle side plate and thread rolling wheel; Figure 4 This is a schematic diagram of the structure of the pushing unit in an embodiment of the present invention; Figure 5 yes Figure 4 A structural diagram from another perspective; Figure 6 yes Figure 5 Cross-sectional structural diagram of the central support column; Figure 7 yes Figure 5 A cross-sectional view of the fixed sleeve. Figure 8 yes Figure 5 A partial cross-sectional view of the central insert column.

[0015] Figure label: 1. Pushing unit; 2. Side plate; 3. Thread rolling wheel; 4. Thread rolling seam; 5. Pulley; 6. Spring; 7. Moving table; 8. Fixed sleeve; 9. Insert column; 10. Elastic body one; 11. Support column; 12. Movable ring; 13. Elastic body two; 14. Inclined groove; 15. Side pressure body; 16. Top plate; 17. Transmission wheel; 18. Transmission chain; 19. Connecting plate; 20. U-shaped frame; 21. Sliding column; 22. Elastic body three; 23. Elastic body four; 24. Spiral groove one; 25. Spiral groove two; 26. Cavity; 27. Guide sleeve; 28. Guide column; 29. ​​Elastic body five. Detailed Implementation

[0016] 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. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0017] In the description of this invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0018] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. This embodiment is written in a progressive manner.

[0019] like Figures 1 to 8 As shown, a high-strength fastener processing equipment for railway engineering construction according to the present invention includes a top-pushing unit 1 and a side plate 2 distributed vertically. The top-pushing unit 1 is used to push the fastener to move in the vertical direction. A protrusion is provided on one side wall of the side plate 2. A thread rolling wheel 3 capable of rotating is provided on both sides of the protrusion. The area between the thread rolling wheel 3 and the protrusion is set as a thread rolling seam 4. The thread rolling wheel 3 consists of several thread rolling discs, and the outer circumference of the thread rolling discs has thread rolling patterns for pressing grooves on fasteners.

[0020] In this invention, a single thread rolling disc has a thread rolling pattern. The push unit 1 is located above the side plate 2 and the thread rolling wheel 3 and is used to drive the blank to move in the vertical direction. The side plate 2 and the two thread rolling wheels 3 can be distributed front and back, and the two thread rolling wheels 3 can be distributed left and right, so that the push unit 1 corresponds to the gap between the side plate 2 and the thread rolling wheel 3. The protrusion on the side plate 2 separates the two thread rolling wheels 3, so that each thread rolling wheel 3 can combine with the outer wall on the side of the protrusion to form a thread rolling slit 4. The two thread rolling slits 4 are the main moving channels of the fastener. That is, the fastener enters one thread rolling slit 4 from one end of the side plate 2, and then the fastener moves between the two thread rolling slits 4 and moves out from the other end of the side plate 2 through the other thread rolling slit 4. During the movement of the fastener, the thread rolling wheel 3 can complete the thread rolling work of the fastener.

[0021] Each thread rolling disc on the thread rolling wheel 3 can roll a groove into the fastener blank. That is, when the blank does not move vertically, the rolling of the thread rolling disc can squeeze a circular groove into the outer circumference of the blank. When the blank moves vertically, the circular groove becomes spiral, thus realizing the thread rolling process of the blank. The way the thread rolling wheel 3 is composed of several thread rolling discs means that when one thread tooth is damaged, that is, when the outer circumference of one thread rolling disc is damaged, only that thread rolling disc needs to be replaced, and the other thread rolling discs can still be used normally. This can greatly reduce the cost of use.

[0022] In use, two thread rolling wheels 3 are driven to rotate, and the blank is installed on the push unit 1 and fed into a thread rolling slit 4 from one end of the side plate 2. The rotating thread rolling wheel 3 presses the blank against the side plate 2 and its protruding side wall. The rotation of the thread rolling wheel 3 causes the outer circumference of several thread rolling discs on the thread rolling wheel 3 to press grooves into the outer wall of the blank. With the blank moving downward or upward in the thread rolling slit 4, the grooves become spiral, thus rolling threads into the surface of the blank. When the blank moves between the two thread rolling wheels 3 and enters another thread rolling slit 4, the push unit 1 pushes the blank downward. At this time, the rolling of the blank by the thread rolling discs on the corresponding thread rolling wheel 3 will form dense reverse threads on the blank. Thus, two threads in opposite directions are formed on the blank, realizing the rapid processing of bidirectional bolts. When the blank leaves the thread rolling slit 4, the blank processing is completed.

[0023] By using a combination of several thread rolling discs and thread rolling wheels 3 to perform thread rolling on the blank, the processing difficulty of the thread rolling wheels 3 is effectively reduced. Only the thread rolling discs need to be processed one by one, which is lower in cost and more convenient in processing. Furthermore, when one thread rolling disc on the thread rolling wheel 3 is damaged, a new thread rolling disc can be directly replaced without replacing the entire thread rolling wheel 3, which effectively reduces wear. By using two thread rolling wheels 3 to rotate in the same direction and the blank to move up and down on different thread rolling wheels 3, threads in different directions can be rolled on the blank, thereby achieving rapid processing of bidirectional threads. Moreover, there is no need to design a separate mold, which further reduces the cost.

[0024] It should be noted that since the threads on the blank are mainly formed by the up and down movement of the blank, the pitch can be adjusted by adjusting the speed of the blank in the vertical direction. In traditional processing methods, two different types of thread rolling plates or threads rolling wheels are required for bidirectional bolts. However, the two threads rolling wheels 3 in this case have the same structure, which can greatly reduce the complexity of the structure and the maintenance cost of the mold.

[0025] Furthermore, the width of the thread rolling gap 4 gradually decreases along the movement direction of the blank.

[0026] When the blank enters the thread rolling slit 4, each thread rolling disc on the thread rolling wheel 3 rolls the blank, and the groove on the blank gradually deepens. If the width of different positions on the thread rolling slit 4 is the same, then after the blank enters the thread rolling slit 4, the groove on the outer wall of the blank will be formed quickly, that is, the blank only completes the thread rolling process within a small range. This is not conducive to the gradual formation of the thread on the blank, which can easily cause fatigue, internal stress concentration, and make the work of the thread rolling wheel 3 more difficult. If the width of different positions on the thread rolling slit 4 gradually changes, then the thread on the blank will be gradually formed, and the forming distance is longer. This reduces the working pressure of the thread rolling wheel 3 and improves the uniformity of the force on the thread rolling wheel 3.

[0027] Because the blanks move in different directions within the two thread rolling slits 4, each thread rolling wheel 3 can use the aforementioned method of extending the machining path when performing thread machining on the blank, such as... Figure 3 As shown, the width of the left thread rolling seam 4 gradually decreases from left to right, and the width of the right thread rolling seam 4 gradually decreases from left to right.

[0028] Furthermore, a toggle structure is provided between the two thread rolling wheels 3. The toggle structure includes a toggle plate 5 movably disposed on the protrusion. The toggle plate 5 is connected to the side plate 2 by a spring piece 6, and the spring piece 6 is used to push the toggle plate 5 to tilt toward one of the thread rolling wheels 3.

[0029] To ensure smooth transition between the two thread rolling slits 4, a guiding mechanism can be used to move the billet from one thread rolling slit 4 to the other. Specifically, for example... Figure 3As shown, when the left thread rolling wheel 3 rolls the billet to the position of the guide plate 5, the billet pushes the guide plate 5 to rotate to the right, thereby avoiding the billet. When the billet separates from the guide plate 5, the spring 6 pushes the guide plate 5 to reset. At this time, the guide plate 5 closes the left thread rolling seam 4, and the billet naturally enters the right thread rolling seam 4 through the guidance of the guide plate 5 during the process of moving to the right.

[0030] Furthermore, the jacking unit 1 includes a moving platform 7, a fixed sleeve 8 vertically installed at the bottom of the moving platform 7, and an insert 9 slidably located inside the fixed sleeve 8. The inner wall of the fixed sleeve 8 is provided with a spiral groove 24 and a spiral groove 25 with opposite spiral directions, and the two ends of the spiral groove 24 and the spiral groove 25 are connected to each other. Along the axial direction of the fixed sleeve 8, the groove depth of the spiral groove 24 gradually decreases, and one end of the spiral groove 24 corresponds to the inner wall of the fixed sleeve 8. A cavity 26 is provided inside the insert 9. A guide sleeve 27 is slidably arranged inside the cavity 26, and the end of the guide sleeve 27 extends beyond the insert 9. A guide post 28 is slidably inserted inside the guide sleeve 27. The guide sleeve 27 and the guide post 28 are used in conjunction with the spiral groove 24 and the spiral groove 25, respectively. Two elastic bodies 29 are provided inside the cavity 26 and are respectively connected to the guide sleeve 27 and the guide post 28. The insert 9 and the fixed sleeve 8 are connected by an elastic body 10, and a clamping structure for fixing the fastener is provided at the bottom of the insert 9.

[0031] like Figures 7 to 8 As shown, the width of spiral groove 24 is greater than that of spiral groove 25, and the depth of spiral groove 24 is less than that of spiral groove 25. On the upper side inside the fixed sleeve 8, the end of spiral groove 25 transitions to the same depth as spiral groove 24 via a slope. On the lower side inside the fixed sleeve 8, the depth of spiral groove 24 gradually decreases until it is flush with the inner wall of the fixed sleeve 8, while spiral groove 25 maintains its original depth. Thus, when the guide sleeve 27 slides within spiral groove 24, as the guide sleeve 27 moves downwards in the vertical direction, after reaching the end of spiral groove 24, the guide sleeve 27 directly... When the guide sleeve 27 contacts the inner wall of the fixed sleeve 8, it stops restricting and guiding the insertion post 9. The guide post 28 then slides into the spiral groove 25. At this time, the spiral groove 25 and the guide post 28 take over the work of the spiral groove 1 24 and the guide sleeve 27 and continue to guide the insertion post 9. When the guide post 28 slides to the upper side of the spiral groove 25, it smoothly slides into the spiral groove 1 24 using the slope. The end of the guide sleeve 27 is reinserted into the spiral groove 1 24. At this time, the spiral groove 1 24 and the guide sleeve 27 take over the work of the spiral groove 25 and the guide post 28 and continue to guide the insertion post 9.

[0032] In use, the clamping structure can fix the blank, and the elastic body 10 can provide elastic force for the fixing sleeve 8 and the insert 9. When the blank enters the thread rolling slot 4, the thread rolling wheel 3 squeezes the blank onto the side wall and the raised side wall of the side plate 2. As the thread rolling wheel 3 rotates, the blank rolls on the side wall and the raised side wall of the side plate 2. At this time, the blank rotates. The blank drives the insert 9 to rotate through the clamping structure. The insert 9 drives the guide sleeve 27 to slide in the spiral groove 24. The spiral groove 24 and the guide sleeve 27 cooperate to move the insert 9. The guide post 9 moves vertically downwards. When the billet enters another thread rolling slot 4, the guide post 28 and the spiral groove 25 take over the work of the guide sleeve 27 and the spiral groove 24. As the billet continues to rotate, the guide post 28 and the spiral groove 25 work together to lift the billet, thereby realizing the vertical movement of the billet. During this process, the billet always maintains a unidirectional rotation mode. The moving table 7 can provide support for the fixed sleeve 8, and the elastic body 10 can provide a reset force for the insert post 9 and the fixed sleeve 8.

[0033] Furthermore, the clamping structure includes a support column 11 disposed at the bottom of the insertion column 9, a movable ring 12 slidably sleeved on the support column 11, and an elastic body 13 connecting the support column 11 and the movable ring 12. An inclined groove 14 coplanar with the axis of the support column 11 is provided at the bottom of the support column 11. A side pressure body 15 is slidably disposed in the inclined groove 14. The side pressure body 15 and the movable ring 12 are slidably connected along the radial direction of the support column 11.

[0034] The elastic body 13 can provide a restoring elastic force to several side pressure bodies 15 through the movable ring 12, so that the several side pressure bodies 15 approach each other in their natural state. When it is necessary to clamp the billet, the movable ring 12 can be manually lifted or a cylinder, mechanical arm or other structure can be used to push the movable ring 12 upward. The movable ring 12 pulls the several side pressure bodies 15 upward, and the elastic body 13 undergoes elastic deformation. The side pressure bodies 15 slide tilted in the inclined groove 14 and the several side pressure bodies 15 separate from each other. At this time, in the horizontal direction, the side pressure bodies 15 slide relative to the movable ring 12. The billet is placed between the several side pressure bodies 15 at the bottom of the support column 11. The movable ring 12 is released. At this time, the elastic body 13 pushes the movable ring 12 downward, and the several side pressure bodies 15 move downward and gather together. The several side pressure bodies 15 clamp and fix the billet.

[0035] Furthermore, the processing equipment also includes a top plate 16, two drive wheels 17 rotatably mounted on the top plate 16, and a drive chain 18 connecting the two drive wheels 17. Annular grooves with the same shape as the top plate 16 and the drive chain 18 are provided on both the upper and lower end faces of the top plate 16. The push unit 1 is provided with several units. A U-shaped frame 20 is provided on the moving table 7. The U-shaped frame 20 is connected to the transmission chain 18 through the connecting plate 19. Four sliding pillars 21 are provided on the U-shaped frame 20. The four sliding pillars 21 are divided into two groups and are used in conjunction with two annular grooves respectively.

[0036] The top plate 16 supports the transmission wheel 17 and the transmission chain 18. When the transmission wheel 17 rotates, the transmission chain 18 can drive the movement of several moving tables 7 and several U-shaped frames 20 through several connecting plates 19. This causes several pushing units 1 to move in a circle around the transmission chain 18. The pushing units 1 alternately transport the billet through two thread rolling seams 4, thereby realizing the continuous processing mode of the billet. The four sliding pillars 21 on the U-shaped frame 20 are used in conjunction with two annular grooves. The two sliding pillars 21 in the annular grooves can guide the U-shaped frame 20. The four sliding pillars 21 are divided into two groups, which can limit the U-shaped frame 20 on the top plate 16, thereby realizing the guiding and limiting functions of the U-shaped frame 20 and the pushing units 1.

[0037] Furthermore, the connecting plate 19 and the U-shaped frame 20 are slidably arranged relative to each other, and are connected to each other by an elastic body 22.

[0038] As the billet moves within the two thread rolling seams 4, its speed changes along the conveying direction of the transmission chain 18. At this time, the billet and the transmission chain 18 will move relative to each other. The pushing unit 1 will drive the U-shaped frame 20 to slide on the connecting plate 19, and the elastic body 3 22 will undergo elastic deformation. By using the above-mentioned setting method, the normal operation of the structure is ensured and jamming is avoided.

[0039] Furthermore, the moving platform 7 and the U-shaped frame 20 are slidably arranged relative to each other, and are connected to each other by an elastic body 23.

[0040] When the billet moves within the thread rolling seam 4, its trajectory is arc-shaped, so the billet will also be displaced in the direction perpendicular to the transmission chain 18. At this time, the push unit 1 will drive the moving table 7 to slide relative to the U-shaped frame 20, and the elastic body 23 will undergo elastic deformation.

[0041] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A high-strength fastener processing equipment for railway engineering construction, characterized in that, It includes a push unit and a side plate distributed vertically. The push unit is used to push the fastener to move in the vertical direction. A protrusion is provided on one side wall of the side plate. A thread rolling wheel capable of rotating is provided on both sides of the protrusion. The area between the thread rolling wheel and the protrusion is set as a thread rolling gap. The thread rolling wheel is composed of several thread rolling discs, and the outer circumferential wall of the thread rolling discs has thread rolling patterns for pressing grooves on fasteners.

2. The high-strength fastener processing equipment for railway engineering construction according to claim 1, characterized in that, The width of the thread rolling gap gradually decreases along the direction of the billet's movement.

3. The high-strength fastener processing equipment for railway engineering construction according to claim 2, characterized in that, A toggle structure is provided between the two thread rolling wheels. The toggle structure includes a toggle plate movably disposed on the protrusion. The toggle plate is connected to the side plate by a spring sheet, and the spring sheet is used to push the toggle plate to tilt toward one of the thread rolling wheels.

4. The high-strength fastener processing equipment for railway engineering construction according to claim 3, characterized in that, The jacking unit includes a movable platform, a fixed sleeve vertically installed at the bottom of the movable platform, and an insert pin slidably located within the fixed sleeve. The inner wall of the fixed sleeve has two spiral grooves, one with opposite spiral directions, and the two ends of the first spiral groove and the second spiral groove are connected accordingly. Along the axis of the fixed sleeve, the depth of the first spiral groove gradually decreases, and one end of the first spiral groove corresponds to the inner wall of the fixed sleeve. A cavity is formed within the insert pin, and a guide sleeve is slidably disposed within the cavity, with its end extending beyond the insert pin. A guide pin is slidably inserted within the guide sleeve. The guide sleeve and the guide pin are used in conjunction with the first spiral groove and the second spiral groove, respectively. Two elastic bodies are disposed within the cavity and are respectively connected to the guide sleeve and the guide pin. The insert and the fixing sleeve are connected by an elastic body, and a clamping structure for fixing the fastener is provided at the bottom of the insert.

5. The high-strength fastener processing equipment for railway engineering construction according to claim 4, characterized in that, The clamping structure includes a support column disposed at the bottom of the insertion post, a movable ring slidably sleeved on the support column, and an elastic body II connecting the support column and the movable ring. An inclined groove coplanar with the axis of the support column is provided at the bottom of the support column, and a side pressure body is slidably disposed in the inclined groove. The side pressure body and the movable ring are slidably connected along the radial direction of the support column.

6. The high-strength fastener processing equipment for railway engineering construction according to claim 5, characterized in that, The processing equipment also includes a top plate, two transmission wheels rotatably mounted on the top plate, and a transmission chain connecting the two transmission wheels. Annular grooves with the same shape as the top plate and the transmission chain are provided on both the upper and lower end faces of the top plate. The push unit is provided in several parts, and a U-shaped frame is provided on the moving platform. The U-shaped frame is connected to the transmission chain through a connecting plate. Four sliding columns are provided on the U-shaped frame. The four sliding columns are divided into two groups and are used in conjunction with the two annular grooves respectively.

7. A high-strength fastener processing equipment for railway engineering construction according to claim 6, characterized in that, The connecting plate and the U-shaped frame are slidably disposed relative to each other, and are connected by an elastic body.

8. The high-strength fastener processing equipment for railway engineering construction according to claim 7, characterized in that, The mobile platform is slidably disposed relative to the U-shaped frame, and the two are connected by an elastic body.

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