Thread rolling device

Abstract

The utility model discloses a thread rolling device which comprises a thread rolling shell, a three-phase servo motor, a speed reduction controller, a movable thread rolling plate and a static thread rolling plate, the output end of the three-phase servo motor is connected with an input shaft of the speed reduction controller, and the speed reduction controller is connected with a side bolt of the thread rolling shell. The output end of the speed reduction controller penetrates into an inner cavity of the thread rolling shell and is provided with a driving connecting wheel, two centrosymmetric sector gears are arranged on the surface of the driving connecting wheel, a linear rail groove is formed in the bottom of the inner cavity of the thread rolling shell, and a connecting straight rack is arranged on one side of an inner cavity of the linear rail groove. The linear rail groove is formed in the bottom of the inner cavity of the thread rolling shell, the connecting spur rack is arranged on one side of the inner cavity of the linear rail groove and connected with the movable thread rolling plate through the threaded connecting rod, and the reset spring section connected with the linear rail groove is arranged at one end of the movable thread rolling plate, so that in the thread rolling operation process, a good reset effect is achieved, and the service life of the thread rolling device is prolonged. And continuous thread rolling operation is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of thread rolling, in particular to a thread rolling device. Background Art

[0002] The thread rolling plate is the most commonly used thread tool for processing screws and bolts in the standard fastener industry; Patent No. CN201721731095.X discloses a thread rolling and groove rolling plate group for processing torsion shear type high-strength bolts, including a static working plate and a dynamic working plate. The torsion shear type high-strength bolts are nut, screw, twist-off groove and plum blossom head from top to bottom, and the lower half of the screw is provided with threads on the surface, and the thread rolling and groove rolling plate group is installed on the thread rolling device; the static working plate includes a static thread rolling plate, which is fixed on the thread rolling device and the height of the static thread rolling plate is higher than the height of the threads on the screw; the dynamic working plate includes a dynamic thread rolling plate and a groove rolling plate, which is installed on the upper end of the groove rolling plate, and the dynamic thread rolling plate and the groove rolling plate are both fixed on the thread rolling device relative to the static thread rolling plate, the height of the dynamic thread rolling plate is the same as the height of the threads on the screw, and the groove rolling plate is provided with convex teeth; the surfaces of the static thread rolling plate and the dynamic thread rolling plate are provided with tooth patterns. The utility model has a simple structure, simplifies the processing procedure of the torsion shear type high-strength bolt, and improves the production efficiency.

[0003] The above disclosed thread rolling device has the disadvantages that the movable thread rolling plate has poor resetting effect during movement, cannot form a continuous thread rolling operation, and is not convenient for fast cutting of bolts after thread rolling. Therefore, we design a thread rolling device. Utility Model Content

[0004] The purpose of the utility model is to provide a thread rolling device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a thread rolling device, comprising a thread rolling housing, a three-phase servo motor, a reduction controller, a dynamic thread rolling plate and a static thread rolling plate, the output end of the three-phase servo motor is connected to the input shaft of the reduction controller and the reduction controller is bolted to the side of the thread rolling housing, the output end of the reduction controller passes through the inner cavity of the thread rolling housing and is installed with a driving connecting wheel, the surface of the driving connecting wheel is provided with two centrosymmetrical fan-shaped gears, a linear track groove is provided at the bottom of the inner cavity of the thread rolling housing, a connecting spur rack is provided on one side of the inner cavity of the linear track groove, the connecting spur rack is meshed and connected with the two fan-shaped gears, a threaded connecting rod is provided at one end of the connecting spur rack, one end of the threaded connecting rod is connected to the dynamic thread rolling plate and enables the dynamic thread rolling plate to slide in the inner cavity of the linear track groove, the static thread rolling plate is located at the top of the inner cavity of the thread rolling housing and corresponds to the dynamic thread rolling plate;

[0006] A feeding port is arranged on one side of the bottom end of the thread rolling shell, a collecting drawer connected to the thread rolling shell is arranged at the bottom end of the feeding port, a loading opening is opened at one end of the thread rolling shell, the loading opening corresponds to the dynamic thread rolling plate and the static thread rolling plate, and a feeding pushing mechanism is arranged on the side connected to the spur rack.

[0007] Preferably, the material unloading pushing mechanism includes an air pump connecting rod, an air pump, a pneumatic telescopic rod, a material unloading push rod and a soft ball head, the air pump connecting rod is connected to the piston rod of the air pump and one end of the air pump connecting rod is connected to the side connected to the straight rack through a mounting block, the air hole of the pneumatic telescopic rod is connected to the exhaust end of the air pump and the material unloading push rod is located inside the pneumatic telescopic rod.

[0008] Preferably, one end of the material discharge push rod is connected to a soft ball head sleeve and the soft ball head is located at the material discharge port.

[0009] Preferably, two supporting corner posts are provided on the other side of the bottom end of the thread rolling housing, and the ground contact surfaces of the two supporting corner posts are flush with the ground contact surface of the collection drawer.

[0010] Preferably, a return spring segment is provided at one end of the movable thread rolling plate, and the return spring segment is connected to the inside of the linear track groove.

[0011] Preferably, the difference between the maximum deformation amount and the minimum deformation amount of the return spring segment is equal to the length of the threaded connecting rod.

[0012] Technical effects and advantages of the utility model:

[0013] (1) The utility model discloses a thread rolling device, which has a linear track groove at the bottom of the inner cavity of a thread rolling shell, a connecting spur rack at one side of the inner cavity of the linear track groove, and the connecting spur rack is connected to a moving thread rolling plate through a threaded connecting rod. A reset spring section connected to the linear track groove is provided at one end of the moving thread rolling plate. During the thread rolling operation, the device has a good reset effect, which is convenient for continuous thread rolling operation. A material discharge pushing mechanism is provided on the side of the connecting spur rack, the material discharge pushing mechanism includes an air pump connecting rod, an air pump, a pneumatic telescopic rod, a material discharge push rod and a soft ball head. The movement of the connecting spur rack drives the material discharge push rod of the pneumatic telescopic rod to extend, and the threaded bolts are pushed out of the moving thread rolling plate through the soft ball head, which is convenient for material discharge operation using the material discharge port, so that the collecting drawer can collect the bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 It is a schematic diagram of the internal structure of the thread rolling shell of the utility model.

[0016] Figure 3 It is a structural schematic diagram of the material feeding and pushing mechanism of the utility model.

[0017] In the figure: 1. thread rolling housing; 2. three-phase servo motor; 3. speed reduction controller; 4. supporting corner column; 5. loading opening; 6. collecting drawer; 7. linear track groove; 8. connecting spur rack; 9. threaded connecting rod; 10. dynamic thread rolling plate; 11. static thread rolling plate; 12. reset spring segment; 13. unloading port; 14. driving connecting wheel; 15. sector gear; 16. mounting block; 17. air pump connecting rod; 18. air pump; 19. pneumatic telescopic rod; 20. unloading push rod; 21. soft ball head. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The utility model provides Figure 1-3 A thread rolling device as shown;

[0020] Embodiment 1: The thread rolling device includes a thread rolling housing 1, a three-phase servo motor 2, a speed reduction controller 3, a dynamic thread rolling plate 10 and a static thread rolling plate 11, the output end of the three-phase servo motor 2 is connected to the input shaft of the speed reduction controller 3 and the speed reduction controller 3 is bolted to the side of the thread rolling housing 1, the output end of the speed reduction controller 3 passes through the inner cavity of the thread rolling housing 1 and is installed with a driving connecting wheel 14, the surface of the driving connecting wheel 14 is provided with two centrosymmetrical sector gears 15, the bottom of the inner cavity of the thread rolling housing 1 is provided with a linear track groove 7, and one side of the inner cavity of the linear track groove 7 is provided with a connecting A spur rack 8 is connected to the spur rack 8 and meshed with two fan gears 15. A threaded connecting rod 9 is provided at one end of the spur rack 8. One end of the threaded connecting rod 9 is connected to a movable thread rolling plate 10 and enables the movable thread rolling plate 10 to slide in the inner cavity of the linear track groove 7. A static thread rolling plate 11 is located at the top of the inner cavity of the thread rolling housing 1 and corresponds to the movable thread rolling plate 10. A reset spring segment 12 is provided at one end of the movable thread rolling plate 10, and the reset spring segment 12 is connected to the inside of the linear track groove 7. The difference between the maximum deformation amount and the minimum deformation amount of the reset spring segment 12 is equal to the length of the threaded connecting rod 9.

[0021] On the basis of Example 1, a feeding port 13 is provided on one side of the bottom end of the thread rolling shell 1, and a collecting drawer 6 connected to the thread rolling shell 1 is provided at the bottom end of the feeding port 13. A loading opening 5 is opened at one end of the thread rolling shell 1, and the loading opening 5 corresponds to the dynamic thread rolling plate 10 and the static thread rolling plate 11. A feeding pushing mechanism is provided on the side connected to the spur rack 8; the feeding pushing mechanism includes an air pumping connecting rod 17, an air pump 18, a pneumatic telescopic rod 19, a feeding push rod 20 and a soft ball head 21, the air pumping connecting rod 17 is connected to the piston rod of the air pump 18 and one end of the air pumping connecting rod 17 is connected to the side connected to the spur rack 8 through the mounting block 16, the air hole of the pneumatic telescopic rod 19 is connected to the exhaust end of the air pump 18 and the feeding push rod 20 is located inside the pneumatic telescopic rod 19; one end of the feeding push rod 20 is sleeve-connected with the soft ball head 21 and the soft ball head 21 is located at the feeding port 13.

[0022] The above design: utilizes the movement of the connected spur rack 8 to drive the unloading push rod 20 of the pneumatic telescopic rod 19 to extend, and pushes the threaded bolts out of the moving thread rolling plate 10 through the soft ball head 21, making it convenient to use the unloading port 13 for unloading operations, so that the collection drawer 6 can collect the bolts.

[0023] In this embodiment, in order to better support the thread rolling housing 1 and improve stability, two supporting corner columns 4 are provided on the other side of the bottom end of the thread rolling housing 1, and the ground contact surfaces of the two supporting corner columns 4 are flush with the ground contact surface of the collection drawer 6.

[0024] The working principle of the utility model is as follows: the bolts that need to be threaded are loaded between the moving thread rolling plate 10 and the static thread rolling plate 11 through the loading opening 5. When the three-phase servo motor 2 drives the reduction controller 3 to move, it can drive the driving connecting wheel 14 and the two fan gears 15 to rotate. The meshing connection between the fan gear 15 and the connecting spur rack 8 is utilized to drive the moving thread rolling plate 10 to slide along the linear track groove 7 to achieve the thread rolling effect. During the thread rolling process, the movement of the connecting spur rack 8 is utilized to drive the unloading push rod 20 of the pneumatic telescopic rod 19 to extend, and the threaded bolts are pushed out of the moving thread rolling plate 10 through the soft ball head 21, so that the unloading operation can be carried out conveniently using the unloading opening 13.

[0025] In the above-mentioned linkage movement process, when the soft ball head 21 approaches the bolt of the moving thread rolling plate 10, the thread rolling of the surface bolt has been completed, and the material cutting movement is about to be realized by inertia.

[0026] In the above movement process, the two sector gears 15 are meshed with the connected spur rack 8 in turn, and each meshing can perform thread rolling operation on a bolt.

[0027] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The specific embodiments described in this article are only used to illustrate the spirit of the utility model. The technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar way, but they will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. A thread rolling device, comprising a thread rolling housing (1), a three-phase servo motor (2), a speed reduction controller (3), a dynamic thread rolling plate (10) and a static thread rolling plate (11), characterized in that: The output end of the three-phase servo motor (2) is connected to the input shaft of the reduction controller (3), and the reduction controller (3) is bolted to the side of the thread rolling housing (1). The output end of the reduction controller (3) passes through the inner cavity of the thread rolling housing (1) and is installed with a driving connecting wheel (14). The surface of the driving connecting wheel (14) is provided with two centrally symmetrical fan-shaped gears (15). A linear track groove (7) is provided at the bottom of the inner cavity of the thread rolling housing (1). A connecting spur rack (8) is provided on one side of the inner cavity of the linear track groove (7). The connecting spur rack (8) is meshedly connected with the two fan-shaped gears (15). A threaded connecting rod (9) is provided at one end of the connecting spur rack (8). One end of the threaded connecting rod (9) is connected to a moving thread rolling plate (10) and enables the moving thread rolling plate (10) to slide in the inner cavity of the linear track groove (7). The static thread rolling plate (11) is located at the top of the inner cavity of the thread rolling housing (1) and corresponds to the moving thread rolling plate (10). A feeding port (13) is provided on one side of the bottom end of the thread rolling housing (1), and a collecting drawer (6) connected to the thread rolling housing (1) is provided at the bottom end of the feeding port (13). A feeding opening (5) is provided at one end of the thread rolling housing (1), and the feeding opening (5) corresponds to a moving thread rolling plate (10) and a stationary thread rolling plate (11), and a feeding pushing mechanism is provided on the side of the connecting spur rack (8).

2. A thread rolling device according to claim 1, characterized in that: The material discharge pushing mechanism comprises an air pump connecting rod (17), an air pump (18), a pneumatic telescopic rod (19), a material discharge push rod (20) and a soft ball head (21); the air pump connecting rod (17) is connected to the piston rod of the air pump (18) and one end of the air pump connecting rod (17) is connected to the side of the connecting spur rack (8) through a mounting block (16); the air hole of the pneumatic telescopic rod (19) is connected to the exhaust end of the air pump (18) and the material discharge push rod (20) is located inside the pneumatic telescopic rod (19).

3. A thread rolling device according to claim 2, characterized in that: One end of the material discharge push rod (20) is sleeve-connected with a soft ball head (21), and the soft ball head (21) is located at the material discharge port (13).

4. A thread rolling device according to claim 1, characterized in that: Two supporting corner posts (4) are arranged on the other side of the bottom end of the thread rolling housing (1), and the ground contact surfaces of the two supporting corner posts (4) are flush with the ground contact surface of the collection drawer (6).

5. A thread rolling device according to claim 1, characterized in that: A return spring segment (12) is provided at one end of the movable thread rolling plate (10), and the return spring segment (12) is connected to the inside of the linear track groove (7).

6. A thread rolling device according to claim 5, characterized in that: The difference between the maximum deformation amount and the minimum deformation amount of the return spring segment (12) is equal to the length of the threaded connecting rod (9).

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