Thread rolling forming mechanism

Abstract

The utility model discloses a kind of thread roll forming mechanisms, it is related to the field of roll forming technology, including bottom plate, the upside of the bottom plate is equipped with moving assembly, the moving assembly includes fixed box, moving block, two-way screw rod, limit rod, first motor and first mounting bracket, the upside of the bottom plate is fixed with fixed box, the inside of the fixed box is slidably connected with two corresponding moving blocks, the side surface of the moving block is equipped with thread hole, two thread holes are opposite, two thread holes are internally screw-connected with two-way screw rod, the two-way screw rod is by two thread holes opposite thread rod welding, the two-way screw rod is rotatably connected in the inside of fixed box, the middle part of the moving block is equipped with limit hole, the local quick replacement of thread ring can be realized, so as to effectively utilize un-worn part material, reduce maintenance cost, simultaneously, through the cooperation of extrusion assembly and clamping assembly, dismounting operation is simplified.

Description

Technical Field

[0001] This utility model relates to the field of roll forming technology, specifically a thread roll forming mechanism. Background Technology

[0002] When threading some thread cutting tools, one method is to form threads by cutting, and another method is to form threads by thread rolling. Thread rolling is a machining method that uses a forming rolling die to plastically deform the outer wall of the thread cutting tool to obtain threads. During thread rolling, the blank of the thread cutting tool rotates under the drive of the thread rolling wheel in the forming die, and the surface is radially squeezed to form threads. The forming rolling die is installed on an automatic lathe. In existing thread rolling forming mechanisms, the outer wall of the thread rolling wheel contacts the blank to create threads. However, over time, the outer wall of the thread rolling wheel is prone to wear, requiring replacement. Replacement necessitates replacing the entire thread rolling wheel, resulting in waste of material from intact parts and increasing replacement costs. Therefore, we propose a thread rolling forming mechanism. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a thread rolling forming mechanism that can realize the partial and rapid replacement of the thread rolling ring, thereby effectively utilizing the unworn part of the material and reducing maintenance costs. At the same time, the cooperation between the extrusion component and the snap-fit ​​component simplifies the disassembly and assembly operation, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a thread rolling forming mechanism, comprising a base plate, a movable component mounted on the upper side of the base plate, the movable component including a fixed box, a movable block, a bidirectional screw, a limiting rod, a first motor, and a first mounting bracket. The fixed box is fixed to the upper side of the base plate, and two corresponding movable blocks are slidably connected inside the fixed box. Threaded holes are opened on the sides of the movable blocks, the threads of the two threaded holes being opposite. A bidirectional screw is threadedly connected inside the two threaded holes, the bidirectional screw being welded from two threaded rods with opposite threads. The bidirectional screw is rotatably connected inside the fixed box, and a limiting rod is provided in the middle of the movable block. The device has two limiting holes with sliding connection to limiting rods inside. The limiting rods are fixed inside the fixed box. A first mounting bracket is fixed to the side of the fixed box. A first motor is installed inside the first mounting bracket. The output shaft of the first motor is fixed to the end face of a bidirectional screw. A rotating assembly is installed on the side of the moving block. A thread rolling assembly is installed on the side of the rotating assembly. A pressing assembly and a snap-fit ​​assembly are installed inside the rotating assembly. The pressing assembly and the snap-fit ​​assembly are connected and cooperate with each other. The input end of the first motor is electrically connected to the output end of an external control switch group. The position of the two thread rolling rings is adjusted by setting the moving assembly.

[0005] Furthermore, the rotating assembly includes a movable frame, a second mounting frame, a second motor, and a mounting box. The upper side of the fixed box has a strip-shaped opening, and two corresponding sealing rubber strips are fixed inside the strip-shaped opening. Two corresponding movable frames are slidably connected inside the strip-shaped opening, with the two movable frames located between the two sealing rubber strips. The two movable frames are respectively fixed to the sides of two movable blocks. The rear side of the movable frame is fixed with the second mounting frame, and the second motor is installed inside the second mounting frame. The mounting box is rotatably connected to the front side of the movable frame. The output shaft of the second motor is fixed to the rear side of the mounting box. The input end of the second motor is electrically connected to the output end of an external control switch group. The rotating assembly drives the thread rolling ring to rotate.

[0006] Furthermore, the thread rolling assembly includes a T-shaped retaining block, a first spring, and a thread rolling wheel ring. Four corresponding slots are provided on the side of the mounting box, and a T-shaped retaining block is slidably connected inside each slot. A thread rolling wheel ring is fitted onto the side of the mounting box, and four corresponding slots are provided inside the thread rolling wheel ring. The T-shaped retaining block is engaged with the corresponding slot. Two corresponding first springs are fixed on the side of the T-shaped retaining block, and all the first springs are fixed inside the mounting box. The workpiece is thread rolled by using two thread rolling wheel rings.

[0007] Furthermore, the extrusion assembly includes an internal threaded ring, a threaded column, an extrusion cone, and a rotating shaft. An internal threaded ring is fixed to the rear side inside the mounting box. The internal threaded ring is connected to a threaded column. An extrusion cone is fixed to the front end of the threaded column. A rotating shaft is fixed to the front end of the extrusion cone. The extrusion cone fits into four other extrusion cones, and the extrusion cones are used to extrude four adjacent T-shaped blocks.

[0008] Furthermore, the snap-fit ​​assembly includes a support frame, snap pins, a limiting plate, a second spring, and snap holes. Snap holes are formed on the circumferential surface of the rotating shaft. Two corresponding support frames are fixed inside the mounting box. Sliding holes are formed on the sides of the support frames. Snap pins are slidably connected inside the sliding holes. A limiting plate is fixed to the end face of the snap pin. A second spring is sleeved on the circumferential surface of the snap pin. One end of the second spring is fixed to the end face of the limiting plate, and the other end is fixed to the side face of the support frame. Both snap pins are snapped into the corresponding snap holes. The rotating shaft is fixed by setting up the snap-fit ​​assembly.

[0009] Furthermore, a turntable is fixed to the front end of the shaft, and the turntable is located outside the mounting box. The turntable facilitates the user's rotation of the shaft.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This thread rolling forming mechanism has the following advantages: 1. Through the cooperation of the T-shaped locking block, the first spring and the thread rolling ring in the thread rolling assembly, combined with the adjustable structure of the extrusion assembly and the snap-fit ​​assembly, the user can replace only the worn part of the thread rolling ring instead of the whole device, thereby greatly reducing material waste. This modular design not only extends the overall service life of the thread rolling tool, but also reduces the cost burden caused by frequent replacements, while ensuring the accuracy and consistency of thread forming during the processing, and is suitable for the rolling needs of various thread cutting tools.

[0011] 2. The synergistic effect of the rotating and moving components allows users to easily adjust the position and angle of the thread rolling ring, while the linkage mechanism between the extrusion cone and the snap-fit ​​component simplifies the disassembly and installation process. Simply rotating the turntable releases or fixes the thread rolling ring. This user-friendly design reduces the complexity of maintenance operations, improves work efficiency, and can be completed without professional tools, making the mechanism more practical and adaptable in the field of roll forming. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the front structure of this utility model; Figure 2 This is a schematic diagram of the structure of the mobile component of this utility model; Figure 3 This is a schematic diagram of the rotating component structure of this utility model; Figure 4 This is a schematic diagram of the thread rolling assembly of this utility model.

[0013] In the diagram: 1. Base plate, 2. Moving assembly, 21. Fixed box, 22. Moving block, 23. Bidirectional screw, 24. Limiting rod, 25. First motor, 26. First mounting bracket, 3. Rotating assembly, 31. Moving bracket, 32. Second mounting bracket, 33. Second motor, 34. Mounting box, 4. Thread rolling assembly, 41. T-shaped clamping block, 42. First spring, 43. Thread rolling wheel ring, 5. Extrusion assembly, 51. Internal threaded ring, 52. Threaded column, 53. Extrusion cone, 54. Rotating shaft, 6. Snap-fit ​​assembly, 61. Support frame, 62. Clamping column, 63. Limiting plate, 64. Second spring, 65. Clamping hole, 7. Turntable. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-4This embodiment provides a technical solution: a thread rolling forming mechanism, including a base plate 1, a movable component 2 mounted on the upper side of the base plate 1, the movable component 2 including a fixed box 21, a movable block 22, a bidirectional screw 23, a limiting rod 24, a first motor 25, and a first mounting bracket 26. The fixed box 21 is fixed on the upper side of the base plate 1. Two corresponding movable blocks 22 are slidably connected inside the fixed box 21. Threaded holes are opened on the sides of the movable blocks 22, and the threads of the two threaded holes are opposite. The bidirectional screw 23 is threadedly connected inside the two threaded holes. The bidirectional screw 23 is welded from two threaded rods with opposite threads. The bidirectional screw 23 is rotatably connected inside the fixed box 21. A limiting hole is opened in the middle of the movable block 22, and the two limiting holes are slidably connected inside. A limit rod 24 is connected and fixed inside the fixed box 21. A first mounting bracket 26 is fixed to the side of the fixed box 21. A first motor 25 is installed inside the first mounting bracket 26. The output shaft of the first motor 25 is fixed to the end face of the bidirectional screw 23. A rotating assembly 3 is installed on the side of the moving block 22. A thread rolling assembly 4 is installed on the side of the rotating assembly 3. An extrusion assembly 5 and a snap-fit ​​assembly 6 are installed inside the rotating assembly 3. The extrusion assembly 5 and the snap-fit ​​assembly 6 are connected. The extrusion assembly 5 and the thread rolling assembly 4 cooperate with each other. The input end of the first motor 25 is electrically connected to the output end of an external control switch group. The rotating assembly 3 includes a moving frame 31, a second mounting bracket 32, a second motor 33, and a mounting box 34. A strip is provided on the upper side of the fixed box 21. The slot has two corresponding sealing rubber strips fixed inside. Two corresponding movable frames 31 are slidably connected inside the slot, located between the two sealing rubber strips. The two movable frames 31 are respectively fixed to the sides of two movable blocks 22. A second mounting frame 32 is fixed to the rear side of the movable frame 31, and a second motor 33 is installed inside the second mounting frame 32. A mounting box 34 is rotatably connected to the front side of the movable frame 31. The output shaft of the second motor 33 is fixed to the rear side of the mounting box 34. The input end of the second motor 33 is electrically connected to the output end of an external control switch group. The thread rolling assembly 4 includes a T-shaped locking block 41, a first spring 42, and a thread rolling ring 43. Four corresponding slots are opened on the side of the mounting box 34. The internal sliding connection of the opening is a T-shaped locking block 41. A thread rolling ring 43 is sleeved on the side of the mounting box 34. The thread rolling ring 43 has four corresponding slots inside. The T-shaped locking block 41 is engaged in the corresponding slot. Two corresponding first springs 42 are fixed on the side of the T-shaped locking block 41. All the first springs 42 are fixed inside the mounting box 34. The extrusion assembly 5 includes an internal threaded ring 51, a threaded post 52, an extrusion cone 53, and a rotating shaft 54. An internal threaded ring 51 is fixed to the rear side inside the mounting box 34. The internal threaded ring 51 is threadedly connected to the threaded post 52. An extrusion cone 53 is fixed to the front end of the threaded post 52. A rotating shaft 54 ​​is fixed to the front end of the extrusion cone 53. The extrusion cone 53 fits against the four extrusion cones 53.The snap-fit ​​assembly 6 includes a support frame 61, snap pins 62, a limiting plate 63, a second spring 64, and snap holes 65. Snap holes 65 are provided on the circumferential surface of the rotating shaft 54. Two corresponding support frames 61 are fixed inside the mounting box 34. Sliding holes are provided on the sides of the support frames 61, and snap pins 62 are slidably connected inside the sliding holes. A limiting plate 63 is fixed to the end face of the snap pin 62. A second spring 64 is sleeved on the circumferential surface of the snap pin 62. One end of the second spring 64 is fixed to the end face of the limiting plate 63, and the other end is fixed to the side of the support frame 61. Both snap pins 62 are snapped into the corresponding snap holes 65. The snap-fit ​​assembly 6 fixes the rotating shaft 54, the extrusion cone 53 extrudes four adjacent T-shaped snap blocks 41, two thread rolling rings 43 perform thread rolling on the workpiece, a rotating assembly 3 drives the thread rolling rings 43 to rotate, and a moving assembly 2 adjusts the position of the two thread rolling rings 43.

[0016] The rotating shaft 54 ​​has a turntable 7 fixed at its front end. The turntable 7 is located outside the mounting box 34. The turntable 7 makes it convenient for the user to rotate the rotating shaft 54.

[0017] The working principle of the thread rolling forming mechanism provided by this utility model is as follows: First, the first motor 25 of the moving component 2 is started, driving the bidirectional screw 23 to rotate within the fixed box 21. Since the two sections of the bidirectional screw 23 have opposite thread directions, they respectively mesh with the reverse threaded holes on the sides of the two moving blocks 22. Under the constraint of the limiting rod 24, the two moving blocks 22 slide synchronously towards or away from each other along the fixed box 21. The moving blocks 22 drive the rotating components 3 and the thread rolling components 4 on both sides to move through the moving frame 31, thereby adjusting the distance between the two thread rolling rings 43 to adapt to the workpiece size. Then, the second motor 33 of the rotating component 3 is started, driving the mounting box 34 to rotate and causing the thread rolling rings 43 to rotate. The thread rolling rings 43 are fixedly engaged with the T-shaped locking block 41 through the internal slot. The T-shaped locking block 41 is always in close contact with the thread rolling rings 43 due to the elastic force of the first spring 42. When the workpiece is placed between the two thread rolling rings 43, the rotating thread rolling rings 43 cause the workpiece surface to plastically deform through radial compression to form a thread. When the thread rolling ring 43 needs to be replaced, the operator pulls the two locking posts 62 of the locking assembly 6 outward to disengage it from the locking holes 65 of the rotating shaft 54. After the rotating shaft 54 ​​is unlocked, the rotating disk 7 is rotated to move the rotating shaft 54 ​​forward. At this time, the extrusion cone 53 separates from the four T-shaped locking blocks 41. The T-shaped locking blocks 41 retract inward under the action of the first spring 42 and disengage from the locking groove of the thread rolling ring 43, so that the old part can be removed. After installing the new thread rolling ring 43, the rotating disk 7 is rotated in the opposite direction. The extrusion cone 53 moves forward and pushes the T-shaped locking blocks 41 outward to lock into the new part's locking groove. The locking posts 62 automatically lock into the locking holes 65 of the rotating shaft 54 ​​under the action of the second spring 64 to complete the locking. This design reduces maintenance costs by partially replacing the worn thread rolling ring 43, and the sealing rubber strip of the moving assembly 2 can effectively prevent processing debris from entering the fixed box 21.

[0018] It is worth noting that the external control switch group disclosed in the above embodiments is provided with buttons that correspond one-to-one with the first motor 25 and the second motor 33. The first motor 25 and the second motor 33 can be selected as 1LE0003 three-phase asynchronous motors.

[0019] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A thread rolling forming mechanism, characterized in that: The system includes a base plate (1), on the upper side of which a movable assembly (2) is mounted. The movable assembly (2) includes a fixed box (21), a movable block (22), a bidirectional screw (23), a limiting rod (24), a first motor (25), and a first mounting bracket (26). The fixed box (21) is fixed on the upper side of the base plate (1). Two corresponding movable blocks (22) are slidably connected inside the fixed box (21). Threaded holes are provided on the sides of the movable blocks (22), with opposite threads. The two threaded holes are connected to the internal threads of the bidirectional screw (23). The bidirectional screw (23) is welded from two threaded rods with opposite threads. The bidirectional screw (23) is rotatably connected inside the fixed box (21). A limiting hole is provided in the middle of the movable block (22), and two limiting rods are connected to the internal threads of the two moving blocks (24). A limiting rod (24) is slidably connected inside the positioning hole. The limiting rod (24) is fixed inside the fixed box (21). A first mounting bracket (26) is fixed on the side of the fixed box (21). A first motor (25) is installed inside the first mounting bracket (26). The output shaft of the first motor (25) is fixed on the end face of the bidirectional screw (23). A rotating assembly (3) is installed on the side of the moving block (22). A thread rolling assembly (4) is installed on the side of the rotating assembly (3). An extrusion assembly (5) and a snap-fit ​​assembly (6) are installed inside the rotating assembly (3). The extrusion assembly (5) and the snap-fit ​​assembly (6) are connected. The extrusion assembly (5) and the thread rolling assembly (4) cooperate with each other. The input end of the first motor (25) is electrically connected to the output end of an external control switch group.

2. The thread rolling forming mechanism according to claim 1, characterized in that: The rotating assembly (3) includes a movable frame (31), a second mounting frame (32), a second motor (33), and a mounting box (34). The upper side of the fixed box (21) has a strip-shaped opening. Two corresponding sealing rubber strips are fixed inside the strip-shaped opening. Two corresponding movable frames (31) are slidably connected inside the strip-shaped opening. The two movable frames (31) are located between the two sealing rubber strips. The two movable frames (31) are respectively fixed on the sides of the two movable blocks (22). The rear side of the movable frame (31) is fixed with the second mounting frame (32). The second motor (33) is installed inside the second mounting frame (32). The front side of the movable frame (31) is rotatably connected with the mounting box (34). The output shaft of the second motor (33) is fixed on the rear side of the mounting box (34). The input end of the second motor (33) is electrically connected to the output end of an external control switch group.

3. The thread rolling forming mechanism according to claim 2, characterized in that: The thread rolling assembly (4) includes a T-shaped locking block (41), a first spring (42), and a thread rolling ring (43). The mounting box (34) has four corresponding slots on its side. The T-shaped locking block (41) is slidably connected inside the slots. The thread rolling ring (43) is sleeved on the side of the mounting box (34). The thread rolling ring (43) has four corresponding slots inside. The T-shaped locking block (41) is engaged in the corresponding slot. Two corresponding first springs (42) are fixed on the side of the T-shaped locking block (41). All the first springs (42) are fixed inside the mounting box (34).

4. The thread rolling forming mechanism according to claim 3, characterized in that: The extrusion assembly (5) includes an internal threaded ring (51), a threaded post (52), an extrusion cone (53), and a rotating shaft (54). The internal threaded ring (51) is fixed to the rear side inside the mounting box (34). The internal threaded ring (51) is connected to the threaded post (52) by its internal thread. The front end of the threaded post (52) is fixed to the extrusion cone (53). The front end of the extrusion cone (53) is fixed to the rotating shaft (54). The extrusion cone (53) is in contact with four extrusion cones (53).

5. A thread rolling forming mechanism according to claim 4, characterized in that: The snap-fit ​​assembly (6) includes a support frame (61), a snap-fit ​​post (62), a limiting plate (63), a second spring (64), and a snap-fit ​​hole (65). The circumferential surface of the rotating shaft (54) is provided with a snap-fit ​​hole (65). The mounting box (34) has two corresponding support frames (61) fixed inside. The side of the support frame (61) is provided with a sliding hole. The snap-fit ​​post (62) is slidably connected inside the sliding hole. The end face of the snap-fit ​​post (62) is fixed with a limiting plate (63). The circumferential surface of the snap-fit ​​post (62) is fitted with a second spring (64). One end of the second spring (64) is fixed to the end face of the limiting plate (63), and the other end of the second spring (64) is fixed to the side of the support frame (61). Both snap-fit ​​posts (62) are snapped into the corresponding snap-fit ​​hole (65).

6. The thread rolling forming mechanism according to claim 4, characterized in that: The front end of the rotating shaft (54) is fixed with a turntable (7), which is located outside the mounting box (34).

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