Thread rolling mechanism

Abstract

The utility model provides a thread rolling mechanism, and belongs to the technical field of thread rolling plates. The device comprises a bottom plate, and the bottom plate is provided with a static tooth plate module and a movable tooth plate module rotationally arranged on the periphery of the static tooth plate module. The four movable thread plates on the movable thread plate mounting plate and the four static thread plates on the static thread plate mounting plate are matched for thread rolling work, thread rolling of four bolts can be achieved at a time, and the thread rolling efficiency is high; the turning-over assembly drives the static tooth plate to rotate by 180 degrees so that the other static thread rolling face on the static tooth plate can be matched with the movable thread rolling face of the movable tooth plate for thread rolling, cooling time is provided for threads of the static thread rolling face, and therefore the service life of the threads of the static tooth plate is prolonged; the translation assembly can drive the static tooth plate to move in the direction away from the movable tooth plate so as to reserve a turn-over space.

Description

Technical Field

[0001] The utility model belongs to the technical field of thread rolling plates and relates to a thread rolling mechanism. Background Art

[0002] The thread rolling plate is a tool that uses the method of metal plastic deformation to roll out threads on a thread rolling machine. It is suitable for processing ordinary bolts and high-strength bolts. Since bolt processing is generally a continuous operation, the temperature of the thread rolling plate will rise after long-term working. When the temperature of the thread rolling plate rises to a certain level, the hardness of the thread teeth will decrease, which will easily cause damage or deformation.

[0003] For example, a Chinese patent discloses a screw thread rolling plate [application number: 201821808508.4], which includes a first thread rolling base, a thread rolling plate is installed on the surface of the first thread rolling base and one side of the second thread rolling base, a sliding block is provided inside the second slide groove, an adjusting bolt is connected to the top of the base, a first fixing block is installed on the side of the base close to the thread rolling plate, and a second fixing block is installed on the side of the base at the upper end of the second thread rolling base close to the first thread rolling base. Utility Model Content

[0004] The purpose of the utility model is to provide a thread rolling mechanism to solve the above problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A thread rolling mechanism comprises a bottom plate, wherein the bottom plate is provided with a stationary tooth plate module and a movable tooth plate module rotatably arranged on the periphery of the stationary tooth plate module;

[0007] The static tooth plate module comprises a static tooth plate mounting plate with a circular cross section, on which four static tooth plates distributed in a circular array and driven by a flip assembly are vertically arranged, and both inner and outer sides of the static tooth plate are provided with static thread rolling surfaces with arc-shaped cross sections;

[0008] The movable die plate module comprises a movable die plate mounting plate with an annular cross section, the movable die plate mounting plate and the stationary die plate mounting plate are concentrically arranged and the stationary die plate mounting plate is arranged in the middle of the movable die plate mounting plate, four movable die plates corresponding to the stationary die plates are vertically arranged on the movable die plate mounting plate, the movable die plate is fixedly arranged on the movable die plate mounting plate, a movable thread rolling surface with an arc cross section is arranged on the movable die plate and the movable thread rolling surface is arranged inwardly, and a translation component connected to the movable die plate is also arranged on the movable die plate mounting plate;

[0009] The bottom plate is also provided with a rotating assembly connected with the movable tooth plate mounting plate.

[0010] In the above-mentioned thread rolling mechanism, the flipping assembly includes a flipping driver fixed to the bottom of the base plate, and the output shaft of the flipping driver passes through the base plate and is fixedly connected to the bottom of the stationary tooth plate.

[0011] In the above-mentioned thread rolling mechanism, a static tooth plate positioning plate is also provided directly above the static tooth plate module, a lifting drive is fixedly connected to the bottom of the base plate, the output shaft end of the lifting drive passes through the base plate and the static tooth plate mounting plate and is fixedly connected to the static tooth plate positioning plate, four groups of positioning rods corresponding to the four static tooth plates are fixedly connected to the static tooth plate positioning plate, each group of positioning rods includes two positioning rods symmetrically arranged along the center line of the static tooth plate, and the bottom of the positioning rod is inserted into the positioning groove at the top of the static tooth plate.

[0012] In the above-mentioned thread rolling mechanism, the rotating assembly includes a driving gear driven by a rotating driver, and the outer circumferential surface of the movable die plate mounting plate is provided with an annular tooth portion meshing with the driving gear.

[0013] In the above-mentioned thread rolling mechanism, the movable tooth plate mounting plate is rotationally matched with the base plate through an annular limiting structure.

[0014] In the above-mentioned thread rolling mechanism, the annular limiting structure includes an annular limiting groove recessed inwardly on the bottom plate and an annular limiting block protruding from the bottom of the movable tooth plate mounting plate, and the annular limiting block is inserted into the annular limiting groove.

[0015] In the above-mentioned thread rolling mechanism, the cross-sections of the annular limiting block and the annular limiting groove are T-shaped.

[0016] In the above-mentioned thread rolling mechanism, the translation assembly includes a translation driver horizontally fixed on the movable die plate mounting plate through a driver mounting plate, and the output shaft end of the translation driver is connected to the movable die plate.

[0017] In the above-mentioned thread rolling mechanism, the outer wall of the movable tooth plate is fixedly connected to a No. 1 connecting seat, the output shaft end of the translation driver is fixedly connected to a No. 2 connecting seat, and the No. 1 connecting seat and the No. 2 connecting seat are detachably connected by a plurality of bolts.

[0018] In the above-mentioned thread rolling mechanism, the static thread rolling surface and the dynamic thread rolling surface are both formed by a combination of a plurality of thread teeth with arc-shaped cross sections.

[0019] Compared with the existing technology, the advantages of the utility model are:

[0020] 1. The four movable tooth plates on the movable tooth plate mounting plate and the four static tooth plates on the static tooth plate mounting plate cooperate in thread rolling, so that four bolts can be threaded at one time, and the thread rolling efficiency is high. After a period of thread rolling, the static tooth plate is driven to rotate 180° by the flipping component, so that another static thread rolling surface on the static tooth plate can cooperate with the dynamic thread rolling surface of the movable tooth plate to roll the thread, providing cooling time for the thread teeth of the static thread rolling surface to increase the service life of the thread teeth of the static tooth plate. When the static tooth plate is flipped, the translation component can drive the static tooth plate to move away from the movable tooth plate to reserve flipping space.

[0021] 2. The rotating assembly can drive the movable tooth plate mounting plate to rotate, and the rotation of the movable tooth plate mounting plate can perform thread rolling through the cooperation of the movable thread rolling plate and the static thread rolling plate.

[0022] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a top view of the stationary tooth plate module and the movable tooth plate module;

[0024] Figure 2 It is a cross-sectional view of the utility model. DETAILED DESCRIPTION

[0025] like Figure 1 and Figure 2 As shown, a thread rolling mechanism comprises a base plate 1, on which a static tooth plate module 2 and a dynamic tooth plate module 3 rotatably arranged on the periphery of the static tooth plate module 2 are arranged; the static tooth plate module 2 comprises a static tooth plate mounting plate 4 with a circular cross section, on which four static tooth plates 6 distributed in an annular array and driven by a flip assembly 5 are vertically arranged, and both inner and outer sides of the static tooth plate 6 are provided with static thread rolling surfaces 7 with arc-shaped cross sections; the dynamic tooth plate module 3 comprises a dynamic tooth plate mounting plate 8 with a circular cross section, and the dynamic tooth plate mounting plate 8 is provided with a static tooth plate 6 with a circular cross section. 8 is concentrically arranged with the static tooth plate mounting plate 4 and the static tooth plate mounting plate 4 is arranged in the middle position of the dynamic tooth plate mounting plate 8, and four dynamic tooth plates 9 corresponding to the static tooth plates 6 are vertically arranged on the dynamic tooth plate mounting plate 8, and the dynamic tooth plates 9 are fixedly arranged on the dynamic tooth plate mounting plate 8, and the dynamic tooth plate 9 is provided with a dynamic thread rolling surface 10 with an arc-shaped cross-section and the dynamic thread rolling surface 10 is arranged inwardly, and the dynamic tooth plate mounting plate 8 is also provided with a translation component 11 connected to the dynamic tooth plate 9; the base plate 1 is also provided with a rotating component connected to the dynamic tooth plate mounting plate 8.

[0026] In the utility model, the four movable tooth plates on the movable tooth plate mounting plate cooperate with the four static tooth plates on the static tooth plate mounting plate to perform thread rolling, so that four bolts can be threaded at one time, and the thread rolling efficiency is high. After a period of thread rolling, the static tooth plate is driven to rotate 180° by the flipping assembly, so that another static thread rolling surface of the static tooth plate can cooperate with the dynamic thread rolling surface of the movable tooth plate to roll the thread, and the thread teeth of the static thread rolling surface are provided with cooling time to improve the service life of the thread teeth of the static tooth plate. When the static tooth plate is flipped, the translation assembly 11 can drive the static tooth plate to move away from the movable tooth plate to reserve flipping space.

[0027] Specifically, the rotating assembly can drive the movable die plate mounting plate 8 to rotate, and the rotation of the movable die plate mounting plate 8 can perform thread rolling through the cooperation of the movable thread rolling plate and the static thread rolling plate.

[0028] Specifically, the flipping assembly 5 includes a flipping driver 12 fixed to the bottom of the base plate 1, and the output shaft of the flipping driver 12 passes through the base plate 1 and is fixedly connected to the bottom of the stationary thread plate 6. The flipping driver can drive the stationary thread plate to rotate and flip.

[0029] Those skilled in the art should understand that the flipping driver may be a rotary cylinder or a motor, etc.

[0030] Specifically, a stationary plate positioning plate 13 is also provided directly above the stationary plate module 2, and a lifting drive 14 is fixedly connected to the bottom of the base plate 1, and the output shaft end of the lifting drive 14 passes through the base plate 1 and the stationary plate mounting plate 4 and is fixedly connected to the stationary plate positioning plate 13. Four groups of positioning rods 15 corresponding to four stationary plates 6 are fixedly connected to the stationary plate positioning plate 13, and each group of positioning rods 15 includes two positioning rods 15 symmetrically arranged along the center line of the stationary plate 6, and the bottom of the positioning rod 15 is inserted into the positioning groove at the top of the stationary plate 6. When rolling the thread, the lifting drive 14 can drive the stationary plate positioning plate to move downward so that the positioning rod is inserted into the positioning groove at the top of the stationary plate to prevent the stationary plate from loosening during rolling the thread, and when turning over, the lifting drive drives the stationary plate positioning plate to move upward so that the positioning rod and the stationary plate are separated.

[0031] Those skilled in the art should understand that the lifting drive may be an oil cylinder, an air cylinder or a linear motor, etc.

[0032] Specifically, the rotating assembly includes a driving gear 17 driven by a rotating driver 16, and the outer circumferential surface of the movable die plate mounting plate 8 is provided with an annular tooth portion meshing with the driving gear 17. The rotating driver can drive the driving gear to rotate, and the driving gear rotates in conjunction with the annular gear to drive the movable die plate mounting plate to rotate.

[0033] Those skilled in the art should understand that the rotary driver may be a rotary cylinder or a motor, etc.

[0034] Preferably, the movable die plate mounting plate 8 is rotatably matched with the base plate 1 through an annular limiting structure, and the annular limiting structure includes an annular limiting groove 18 recessed inwardly on the base plate 1 and an annular limiting block 19 protruding from the bottom of the movable die plate mounting plate 8, the annular limiting block 19 is inserted into the annular limiting groove 18, and the cross-sections of the annular limiting block 19 and the annular limiting groove 18 are T-shaped. The cooperation of the annular limiting block and the annular limiting groove can provide a limit and a rotation center for the movable die plate mounting plate.

[0035] Specifically, the translation assembly includes a translation driver 20 horizontally fixed on the movable tooth plate mounting plate 8 through a driver mounting plate, the output shaft end of the translation driver 20 is connected to the movable tooth plate 9, and the outer wall of the movable tooth plate 9 is fixedly connected to a No. 1 connecting seat 21, and the output shaft end of the translation driver 20 is fixedly connected to a No. 2 connecting seat 22, and the No. 1 connecting seat 21 and the No. 2 connecting seat 22 are detachably connected by a number of bolts.

[0036] During loading and unloading and turning over, the translation driver can drive the movable tooth plate to translate towards or away from the stationary tooth plate.

[0037] Those skilled in the art should understand that the translation driver may be an oil cylinder, an air cylinder or a linear motor, etc.

[0038] Specifically, the static thread rolling surface 7 and the dynamic thread rolling surface 10 are both formed by a combination of a plurality of thread teeth with arc-shaped cross sections.

[0039] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A thread rolling mechanism, comprising a bottom plate (1), characterized in that: The base plate (1) is provided with a stationary tooth plate module (2) and a movable tooth plate module (3) rotatably arranged on the periphery of the stationary tooth plate module (2); The static tooth plate module (2) comprises a static tooth plate mounting plate (4) with a circular cross section, four static tooth plates (6) distributed in a ring array and driven by a flip assembly (5) are vertically arranged on the static tooth plate mounting plate (4), and static thread rolling surfaces (7) with arc-shaped cross sections are provided on both inner and outer sides of the static tooth plate (6); The movable tooth plate module (3) comprises a movable tooth plate mounting plate (8) with an annular cross section, the movable tooth plate mounting plate (8) and the stationary tooth plate mounting plate (4) are concentrically arranged and the stationary tooth plate mounting plate (4) is arranged in the middle position of the movable tooth plate mounting plate (8), four movable tooth plates (9) corresponding to the stationary tooth plates (6) are vertically arranged on the movable tooth plate mounting plate (8), the movable tooth plate (9) is fixedly arranged on the movable tooth plate mounting plate (8), the movable tooth plate (9) is provided with a movable thread rolling surface (10) with an arc-shaped cross section and the movable thread rolling surface (10) is arranged inwardly, and the movable tooth plate mounting plate (8) is also provided with a translation component (11) connected to the movable tooth plate (9); The base plate (1) is also provided with a rotating assembly connected to the movable tooth plate mounting plate (8).

2. A thread rolling mechanism according to claim 1, characterized in that: The flipping assembly (5) comprises a flipping driver (12) fixed to the bottom of the base plate (1); the output shaft of the flipping driver (12) passes through the base plate (1) and is fixedly connected to the bottom of the stationary tooth plate (6).

3. A thread rolling mechanism according to claim 2, characterized in that: A stationary tooth plate positioning plate (13) is also provided directly above the stationary tooth plate module (2); a lifting drive (14) is fixedly connected to the bottom of the base plate (1); an output shaft end of the lifting drive (14) passes through the base plate (1) and the stationary tooth plate mounting plate (4) and is fixedly connected to the stationary tooth plate positioning plate (13); four groups of positioning rods (15) corresponding to the four stationary tooth plates (6) are fixedly connected to the stationary tooth plate positioning plate (13); each group of positioning rods (15) includes two positioning rods (15) symmetrically arranged along the center line of the stationary tooth plate (6); and the bottom of the positioning rod (15) is inserted into the positioning groove at the top of the stationary tooth plate (6).

4. A thread rolling mechanism according to any one of claims 1 to 3, characterized in that: The rotating assembly comprises a driving gear (17) driven by a rotating driver (16), and an annular tooth portion meshing with the driving gear (17) is provided on the outer circumferential surface of the movable tooth plate mounting plate (8).

5. A thread rolling mechanism according to claim 4, characterized in that: The movable tooth plate mounting plate (8) is rotationally matched with the base plate (1) via an annular limiting structure.

6. A thread rolling mechanism according to claim 5, characterized in that: The annular limiting structure comprises an annular limiting groove (18) recessed inwardly on the base plate (1) and an annular limiting block (19) protruding from the bottom of the movable tooth plate mounting plate (8), wherein the annular limiting block (19) is inserted into the annular limiting groove (18).

7. A thread rolling mechanism according to claim 6, characterized in that: The cross sections of the annular limiting block (19) and the annular limiting groove (18) are T-shaped.

8. A thread rolling mechanism according to any one of claims 1 to 3, characterized in that: The translation assembly comprises a translation driver (20) horizontally fixed on a movable tooth plate mounting plate (8) via a driver mounting plate, and the output shaft end of the translation driver (20) is connected to the movable tooth plate (9).

9. A thread rolling mechanism according to claim 8, characterized in that: The outer wall of the movable tooth plate (9) is fixedly connected to a first connecting seat (21), and the output shaft end of the translation driver (20) is fixedly connected to a second connecting seat (22). The first connecting seat (21) and the second connecting seat (22) are detachably connected via a plurality of bolts.

10. A thread rolling mechanism according to any one of claims 1 to 3, characterized in that: The static thread rolling surface (7) and the dynamic thread rolling surface (10) are both formed by a combination of a plurality of thread teeth with arc-shaped cross sections.

Images