Large-specification fastener thread rolling auxiliary device

Abstract

The utility model discloses a large-specification fastener thread rolling auxiliary device, and relates to the field of fastener thread rolling machining. The device comprises a workbench, a support and a thread rolling auxiliary supporting mechanism, the thread rolling auxiliary supporting mechanism comprises a guide clamping groove, a supporting frame, an auxiliary wheel, a direction shaft, a bidirectional lead screw and a first locking screw, a limiting assembly is further arranged on the thread rolling auxiliary supporting mechanism, and the limiting assembly comprises an auxiliary connecting block and a second locking screw. The large-specification fastener thread rolling auxiliary device is used for being installed on the front side of a thread rolling machine, plays a role in supporting the unmachined end of a large-specification fastener in thread rolling operation, and solves the problem that one end of the large-specification fastener is prone to falling off due to the gravity effect or is difficult to keep coaxial with a thread rolling die due to lack of effective supporting. The swing of the large-specification fastener in the thread rolling process is reduced, the coaxiality and the parallelism of the large-specification fastener and the thread rolling die are guaranteed, and the thread rolling quality and the production efficiency of the large-specification fastener are improved.

Description

Technical Field

[0001] The utility model relates to the field of fastener thread rolling processing, in particular to a thread rolling auxiliary device for large-size fasteners. Background Art

[0002] With the continuous advancement and development of science and technology, large-sized fasteners have gradually come into the public eye, especially in recent years, with the frequent production and application of large-sized fasteners of M64 and above. Thread processing is one of the key processes in fastener production. How to achieve precise positioning of large-sized fastener thread rolling, ensure thread rolling quality, and improve production efficiency has become a difficulty restricting the development of large-sized fasteners. The traditional thread rolling process is to place the end of the fastener to be rolled on the drag knife, and the other end is held horizontally by the operator's hand for thread processing. In this method, the coaxiality of the fastener and the thread, the coaxiality of the fastener and the thread rolling die, and the parallelism are all dependent on the operator's experience. In addition, the swing of the fastener when it is screwed into the body will also affect the thread rolling quality of the fastener.

[0003] In response to the above practical problems, we have researched and designed a large-size fastener thread rolling auxiliary device. Utility Model Content

[0004] The utility model addresses the deficiencies in the prior art and aims to provide a large-size fastener thread rolling auxiliary device, which reduces the swing during the thread rolling process of large-size fasteners, ensures the coaxiality and parallelism of the large-size fasteners and the thread rolling die, and the coaxiality of the threads of the large-size fasteners and the fastener axis, thereby improving the quality and production efficiency of the thread rolling of large-size fasteners.

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

[0006] The utility model provides a large-size fastener thread rolling auxiliary device, comprising:

[0007] A workbench, wherein a pair of parallel first slide grooves are opened on the top surface of the workbench, and first strip holes are opened on both the left and right sides of the workbench, and the first strip holes and the first slide grooves on the same side are connected;

[0008] A support, wherein the support has a pair of first sliders matching the first slide groove at the bottom, a screw is provided on the outside of the first slider, the screw extends out of the first strip hole, a butterfly nut is threadedly connected on the screw, and the butterfly nut is used to lock the support on the workbench;

[0009] The thread rolling auxiliary support mechanism includes a guide slot, a support frame, an auxiliary wheel, a direction shaft, a bidirectional screw, and a first locking screw. The guide slot is fixedly arranged on the front side of the support. The support frame is a "T"-shaped structure. The lower part of the support frame can be slidably inserted into the guide slot. A vertical second strip hole is opened at the lower part of the support frame. The first locking screw is threadedly connected to the support after passing through the second strip hole. The first locking screw is used to lock the support frame on the support. A pair of square holes are opened on the upper part of the support frame. One end of the direction shaft is rotatably installed with the auxiliary wheel, and the other end is threadedly connected to the bidirectional screw after passing through the square hole. Both ends of the horizontally arranged bidirectional screw are rotatably installed on the support frame, and a handwheel is also installed at one end of the bidirectional screw.

[0010] Furthermore, the thread rolling auxiliary support mechanism is also provided with a limiting assembly, which includes an auxiliary connecting block and a second locking screw. The auxiliary connecting block is fixedly connected to the square shaft, and the second locking screw passes backward through the third strip hole opened on the upper part of the support frame and is threadedly connected to the auxiliary connecting block. The third strip hole is located below the square hole, and the second locking screw is used to lock the square shaft on the support frame.

[0011] Furthermore, the first sliding block and the support are an integrally formed structure.

[0012] Furthermore, a first scale is provided on the front side of the guide slot, and a first pointer corresponding to the first scale is provided on the lower part of the support frame.

[0013] Furthermore, the support frame is provided with a second scale, the second scale is located above the square hole, and a second pointer corresponding to the second scale is provided on the square shaft.

[0014] Compared with the prior art, the beneficial technical effects of the present invention are:

[0015] 1. The large-size fastener thread rolling auxiliary device of the utility model is used to be installed on the front side of the thread rolling machine, and supports the unprocessed end of the large-size fastener during the thread rolling operation, solving the problem that one end of the large-size fastener is prone to falling due to gravity or difficult to maintain coaxiality with the thread rolling die due to lack of effective support. It reduces the swing of large-size fasteners during the thread rolling process, ensures the coaxiality and parallelism of the large-size fastener and the thread rolling die, and the coaxiality of the thread of the large-size fastener and the fastener axis, thereby improving the quality and production efficiency of large-size fastener thread rolling.

[0016] 2. The auxiliary wheel in the utility model rotates with the fastener, and its height and spacing can be adjusted to adapt to the thread rolling support of fasteners of different specifications and sizes, ensuring the parallelism of the fastener and the thread rolling wheel; by loosening the first locking screw, the support frame can slide up and down in the guide slot, which is convenient for adjusting the height of the auxiliary wheel. After the height adjustment is completed, tighten the first locking screw; by loosening the second locking screw, turning the handwheel to make the bidirectional screw rotate forward or reverse, the spacing between the two auxiliary wheels can be adjusted. After the spacing adjustment is completed, tighten the second locking screw.

[0017] 3. The utility model can also adjust the position of the support to adapt to the rolling support of fasteners of different lengths. By loosening the butterfly nut, pushing and pulling the support, the support moves back and forth along the first slide groove, and tightening the butterfly nut after adjusting to the appropriate position. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional diagram of a large-size fastener thread rolling auxiliary device of the present invention;

[0019] Figure 2 This is a front view of a large-size fastener thread rolling auxiliary device of the utility model;

[0020] Figure 3 This is a left view of a large-size fastener thread rolling auxiliary device of the utility model;

[0021] Figure 4 This is a top view of a large-size fastener thread rolling auxiliary device of the utility model;

[0022] Figure 5 for Figure 4 Middle AA section;

[0023] Figure markings: 1-workbench, 101-first slide groove, 102-first bar hole, 2-support, 201-first slider, 202-screw, 3-guide slot, 301-first scale, 4-support frame, 401-second bar hole, 402-first pointer, 403-square hole, 404-third bar hole, 405-second scale, 5-auxiliary wheel, 6-direction shaft, 601-second pointer, 7-bidirectional screw, 8-handwheel, 9-first locking screw, 10-second locking screw, 11-butterfly nut, 12-auxiliary connecting block. DETAILED DESCRIPTION

[0024] The following is a clear and complete description of the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0025] Example 1

[0026] Please see the attached Figure 1-5 As shown, the large-size fastener thread rolling auxiliary device provided in this embodiment includes a workbench 1, a support 2 and a thread rolling auxiliary support mechanism;

[0027] A pair of parallel first chutes 101 are provided on the top surface of the workbench 1, and first strip holes 102 are provided on both the left and right sides of the workbench 1. The first strip holes 102 and the first chutes 101 on the same side are connected;

[0028] The support 2 has a pair of first sliders 201 at the bottom thereof that match the first slide grooves 101. A screw 202 is provided on the outer side of the first slider 201. The screw 202 extends out of the first strip-shaped hole 102. The screw 202 is threadedly connected to a butterfly nut 11. The butterfly nut 11 is used to lock the support 2 on the workbench 1.

[0029] The thread rolling auxiliary support mechanism includes a guide slot 3, a support frame 4, an auxiliary wheel 5, a direction shaft 6, a bidirectional screw 7, and a first locking screw 9. The guide slot 3 is fixedly arranged on the front side of the support 2. The support frame 4 is a "T"-shaped structure. The lower part of the support frame 4 can be slidably inserted into the guide slot 3. A vertical second strip hole 401 is opened at the lower part of the support frame 4. The first locking screw 9 is threadedly connected to the support 2 after passing through the second strip hole 401. The first locking screw 9 is used to lock the support frame 4 on the support 2. A pair of square holes 403 are opened on the upper part of the support frame 4. One end of the direction shaft 6 is rotatably installed with the auxiliary wheel 5, and the other end passes through the square hole 403 and is threadedly connected to the bidirectional screw 7. The two ends of the horizontally arranged bidirectional screw 7 are rotatably installed on the support frame 4. A handwheel 8 is also installed at one end of the bidirectional screw 7.

[0030] In this embodiment, by loosening the first locking screw 9, the support frame 4 can slide up and down in the guide slot 3, so as to facilitate the adjustment of the height of the auxiliary wheel 5. After the height adjustment is completed, the first locking screw 9 is tightened.

[0031] In this embodiment, by loosening the butterfly nut 11 and pushing and pulling the support 2, the support 2 moves back and forth along the first sliding groove 101, and the butterfly nut 11 is tightened after being adjusted to a suitable position.

[0032] Specifically, in order to ensure that the spacing between the auxiliary wheels 5 is fixed during the thread rolling process, the thread rolling auxiliary support mechanism is further provided with a limiting assembly, which includes an auxiliary connecting block 12 and a second locking screw 10. The auxiliary connecting block 12 is fixedly connected to the square shaft, and the second locking screw 10 is threadedly connected to the auxiliary connecting block 12 after passing backward through the third strip hole 404 opened on the upper part of the support frame 4. The third strip hole 404 is located below the square hole 403. The second locking screw 10 is used to lock the square shaft to the support frame 4. By loosening the second locking screw 10 and turning the handwheel 8 to rotate the bidirectional screw forward or reverse, the spacing between the two auxiliary wheels 5 can be adjusted. After the spacing adjustment is completed, the second locking screw 10 is tightened.

[0033] Specifically, the first sliding block 201 and the support 2 are an integrally formed structure.

[0034] Specifically, a first scale 301 is provided on the front side of the guide slot 3, and a first pointer 402 corresponding to the first scale 301 is provided on the lower portion of the support frame 4. A second scale 405 is also provided on the support frame 4, positioned above the square hole 403. A second pointer 601 corresponding to the second scale 405 is provided on the square shaft. The provision of the first scale 301 and the second scale 405 facilitates quick and precise adjustment of the height and spacing of the auxiliary wheels 5, thereby enabling precise positioning of the fasteners and improving work efficiency.

[0035] When the large-size fastener thread rolling auxiliary device of the present invention is used, the workbench 1 is fixedly installed on the front side of the thread rolling machine, and the auxiliary wheel 5 is positioned at a suitable position to support the end of the large-size fastener that is not thread rolled by adjusting the first locking screw 9, the second locking screw 10 and the butterfly nut 11, so as to ensure the coaxiality and parallelism of the large-size fastener and the thread rolling die, and the coaxiality of the thread of the large-size fastener and the axis of the fastener, thereby ensuring the coaxiality of the fastener and the thread. During the thread rolling process, the auxiliary wheel 5 rotates as the fastener rotates.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the technical solution and conceptual design of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A large-size fastener thread rolling auxiliary device, characterized in that: include: A workbench (1), wherein a pair of parallel first chute grooves (101) are provided on the top surface of the workbench (1), first strip holes (102) are provided on both left and right sides of the workbench (1), and the first strip holes (102) and the first chute grooves (101) on the same side are connected; A support (2), wherein a pair of first sliders (201) matching the first slide groove (101) are provided at the bottom of the support (2), a screw rod (202) is provided on the outside of the first slider rod (201), the screw rod (202) extends out of the first strip-shaped hole (102), a butterfly nut (11) is threadedly connected to the screw rod (202), and the butterfly nut (11) is used to lock the support (2) on the workbench (1); The thread rolling auxiliary support mechanism comprises a guide slot (3), a support frame (4), an auxiliary wheel (5), a direction shaft (6), a bidirectional screw rod (7), and a first locking screw (9). The guide slot (3) is fixedly arranged on the front side of the support (2). The support frame (4) is a "T"-shaped structure. The lower part of the support frame (4) can be slidably inserted into the guide slot (3). The lower part of the support frame (4) is provided with a vertical second strip hole (401). The first locking screw (9) is inserted through the guide slot (3). After passing through the second strip hole (401), it is threadedly connected to the support (2). The first locking screw (9) is used to lock the support frame (4) on the support (2). A pair of square holes (403) are opened on the upper part of the support frame (4). One end of the direction shaft (6) is rotatably installed on the auxiliary wheel (5), and the other end passes through the square hole (403) and is threadedly connected to the bidirectional screw rod (7). The two ends of the horizontally arranged bidirectional screw rod (7) are rotatably installed on the support frame (4). A hand wheel (8) is also installed on one end of the bidirectional screw rod (7).

2. The large-size fastener thread rolling auxiliary device according to claim 1, characterized in that: Furthermore, the thread rolling auxiliary support mechanism is also provided with a limiting assembly, which includes an auxiliary connecting block (12) and a second locking screw (10). The auxiliary connecting block (12) is fixedly connected to the square shaft, and the second locking screw (10) passes backward through a third strip hole (404) opened on the upper part of the support frame (4) and is threadedly connected to the auxiliary connecting block (12). The third strip hole (404) is located below the square hole (403). The second locking screw (10) is used to lock the square shaft on the support frame (4).

3. The large-size fastener thread rolling auxiliary device according to claim 1, characterized in that: The first sliding block (201) and the support (2) are an integrally formed structure.

4. The large-size fastener thread rolling auxiliary device according to claim 1, characterized in that: A first scale (301) is provided on the front side of the guide slot (3), and a first pointer (402) corresponding to the first scale (301) is provided on the lower part of the support frame (4).

5. The large-size fastener thread rolling auxiliary device according to claim 1, characterized in that: The support frame (4) is further provided with a second scale (405), the second scale (405) is located above the square hole (403), and a second pointer (601) corresponding to the second scale (405) is provided on the square shaft.

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