High-precision thread forming device of fastener thread rolling machine

Abstract

The utility model relates to the technical field of thread rolling machines, one embodiment of the utility model provides a high-precision thread forming device of a fastener thread rolling machine, the high-precision thread forming device of the fastener thread rolling machine comprises a workbench and a fastener body, supporting legs are fixedly connected to the bottom of the workbench, thread rolling assemblies are installed on the two sides of the top of the workbench, and top plates are installed on the tops of the thread rolling assemblies; a lifting assembly is installed at the top of the top plate, a positioning assembly is installed at the bottom of the lifting assembly, and a discharging assembly is installed on the back face of the top of the workbench. According to the technical scheme, the lifting assembly and the positioning assembly are arranged, a positioning roller can press the top of the fastener body, the fastener body does not need to be manually supported, and hurt to the hand of a worker is reduced; the technical problems that in the prior art, a worker needs to support the fastener all the time until a thread rolling roller is not in contact with the fastener, and the hand of the worker is prone to being scratched when the fastener rotates are solved.

Description

TECHNICAL FIELD

[0001] Embodiments of the present disclosure relate to the technical field of thread rolling machines, in particular, to a high-precision thread forming device of a fastener thread rolling machine. BACKGROUND

[0002] Fasteners are a kind of mechanical parts with fastening connection and are widely used, including bolts, studs and other commonly used connection parts in daily life. Among various manufacturing processes of fasteners, the step of machining a thread surface on the surface of the fastener is particularly important, and the machine mainly used for machining a thread surface on the surface of the fastener is a thread rolling machine.

[0003] In use, the worker places the fastener on the support plate, and then the two thread rolling rollers extrude and rotate the outer side of the fastener, but in order to avoid the fastener from falling off the support plate, the worker needs to hold the fastener all the time until the thread rolling rollers avoid contact with the fastener, the worker's hands are easy to be scratched by the rotating fastener, and secondly, the surface temperature of the processed fastener is high, which needs manual unloading, increasing the labor burden of the worker. CONTENT OF THE INVENTION

[0004] To overcome the above defects, embodiments of the present disclosure provide a high-precision thread forming device of a fastener thread rolling machine, which solves the technical problem in the prior art that a worker needs to hold a fastener all the time until thread rolling rollers avoid contact with the fastener.

[0005] To achieve the above object, the present utility model provides the following technical scheme: a high-precision thread forming device of a fastener thread rolling machine, comprising a workbench and a fastener main body, the bottom of the workbench is fixedly connected with support legs, both sides of the top of the workbench are installed with thread rolling assemblies, the top of the thread rolling assembly is installed with a top plate, the top of the top plate is installed with a lifting assembly, the bottom of the lifting assembly is installed with a positioning assembly, the back of the top of the workbench is installed with an unloading assembly, the lifting assembly comprises a lifting motor fixedly connected to the top of the top plate, the output shaft of the lifting motor is fixedly connected with a lead screw, the outer side of the lead screw is threadedly sleeved with a threaded tube, the bottom of the threaded tube is fixedly connected with a lifting plate, the positioning assembly comprises a cylindrical rod movably sleeved on the surface of the lifting plate, the top of the cylindrical rod is fixedly connected with a top block, the bottom of the cylindrical rod is fixedly connected with a mounting plate, the bottom of the mounting plate is fixedly connected with a fixed frame, the bottom of the fixed frame is provided with a movable groove, the inner side of the movable groove is movably sleeved with a positioning roller, the outer side of the cylindrical rod is movably sleeved with a first spring, and the first spring is located between the lifting plate and the mounting plate.

[0006] As a preferred technical scheme of the present utility model, the middle of the top of the workbench is fixedly connected with a support block, and the top of the support block is fixedly connected with a placing plate.

[0007] As a preferred technical scheme of the utility model, the front surface and the back surface of the top of the lifting plate are fixedly connected with positioning pipes, the top of the positioning pipe is movably sleeved with a positioning rod, and the top of the positioning rod is fixedly connected with the bottom of the top plate.

[0008] As a preferred technical scheme of the utility model, the back surface of the bottom of the top plate is provided with a contact switch, and the back surface of the top of the lifting plate is provided with a pressing assembly.

[0009] As a preferred technical scheme of the utility model, the pressing assembly comprises a cylindrical frame fixedly connected to the top of the lifting plate, a cylindrical groove is formed in the inner side of the cylindrical frame, a fixing rod is movably sleeved with the top of the cylindrical frame, a fixing ring is fixedly sleeved with the outer side of the fixing rod, and a second spring is movably sleeved with the bottom of the outer side of the fixing rod.

[0010] As a preferred technical scheme of the utility model, the rolling wire assembly comprises a supporting plate fixedly connected to the top of the workbench, a gas cylinder is fixedly connected to the side surface of the supporting plate, a mounting frame is fixedly connected to the piston end of the gas cylinder, a driving motor is fixedly connected to the back surface of the mounting frame, and a rolling wire roller is fixedly connected to the output shaft of the driving motor.

[0011] As a preferred technical scheme of the utility model, the blanking assembly comprises a blanking motor fixedly connected to the top of the workbench, a rotating rod is fixedly connected to the output shaft of the blanking motor, and a cam is fixedly sleeved with the outer side of the rotating rod.

[0012] As a preferred technical scheme of the utility model, the blanking assembly further comprises a support plate fixedly connected to the top of the workbench, a push rod is movably sleeved with the front surface of the support plate, a stop block is fixedly connected to the back surface of the push rod, a reset spring is arranged on the outer side of the push rod, the reset spring is located between the stop block and the support plate, and the push rod is horizontally aligned with the fastener body.

[0013] As a preferred technical scheme of the utility model, the contact switch and the blanking motor are electrically connected through wires, and the contact switch and the pressing assembly are located in the same vertical direction.

[0014] As a preferred technical scheme of the utility model, the placing plate and the positioning roller are located in the same vertical direction, and an arc-shaped groove is arranged on the surface of the top of the placing plate.

[0015] The embodiment of the present disclosure has the following beneficial effects:

[0016] In the present disclosure, by being provided with the lifting assembly and the positioning assembly, the fastener body is first placed on the top of the placing plate, then the lifting motor is controlled to drive the screw rod to rotate, under the threaded thrust of the screw rod, the threaded tube drives the lifting plate to move downward, so that the positioning roller can press the top of the fastener body, and at the time of pressing, the first spring is compressed, avoiding the excessive pressure of the positioning roller on the fastener body to affect the rotation of the fastener body during processing, without manually supporting the fastener body, the harm to the hands of workers is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments of the present disclosure will be briefly introduced. Obviously, the drawings in the following description are only some example embodiments of the present disclosure. For those skilled in the art, other drawings can be obtained according to the content of the example embodiments of the present disclosure and these drawings without paying creative labor.

[0018] Figure 1 the overall structure schematic diagram of an embodiment of the present disclosure;

[0019] Figure 2 the structure schematic diagram of the workbench in an embodiment of the present disclosure; Figure 1

[0020] Figure 3 the structure schematic diagram of the placing plate in an embodiment of the present disclosure;

[0021] Figure 4 the structure schematic diagram of the lifting assembly in an embodiment of the present disclosure; Figure 1

[0022] Figure 5 the structure schematic diagram of the positioning assembly in an embodiment of the present disclosure; Figure 1

[0023] Figure 6 the structure schematic diagram of the rolling assembly in an embodiment of the present disclosure; Figure 1

[0024] Figure 7 the structure schematic diagram of the blanking assembly in an embodiment of the present disclosure; Figure 2

[0025] Figure 8 the structure schematic diagram of the pressing assembly in an embodiment of the present disclosure. Figure 4

[0026] ​​​​​​In the figure: 1, workbench; 11, support block; 12, placement plate; 101, support leg; 103, top plate; 131, touch switch; 2, thread rolling assembly; 201, support plate; 202, air cylinder; 203, mounting frame; 204, drive motor; 205, thread rolling roller; 3, lifting assembly; 301, lifting motor; 302, lead screw; 303, threaded tube; 304, lifting plate; 305, positioning tube; 306, positioning rod; 4, positioning assembly; 401, cylindrical rod; 402, top block; 403, mounting plate; 404, first spring; 405, fixed frame; 406, movable groove; 407, positioning roller; 5, fastener body; 6, blanking assembly; 601, blanking motor; 602, rotating rod; 603, cam; 604, bracket plate; 605, push rod; 606, stop block; 607, return spring; 7, pressing assembly; 701, cylindrical frame; 711, cylindrical groove; 702, fixed rod; 703, fixed ring; 704, second spring. DETAILED DESCRIPTION

[0027] The present disclosure will be further described in conjunction with the drawings and examples. It can be understood that the specific examples described herein are only used to explain the present disclosure, and not to limit the present disclosure.

[0028] In order to make the drawing simple, only the parts related to the disclosure are shown in each figure, and they do not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some figures, only one of the components with the same structure or function is shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0029] In this paper, it should be noted that unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0030] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 limitations on this disclosure.

[0032] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] like Figures 1-8 The diagram illustrates a high-precision thread forming device for a fastener thread rolling machine according to an embodiment of this disclosure. It includes a worktable 1, a fastener body 5, a support leg 101 fixedly connected to the bottom of the worktable 1, thread rolling assemblies 2 mounted on both sides of the top of the worktable 1, a top plate 103 mounted on the top of the thread rolling assemblies 2, a lifting assembly 3 mounted on the top of the top plate 103, a positioning assembly 4 mounted on the bottom of the lifting assembly 3, and a feeding assembly 6 mounted on the back of the top of the worktable 1. The lifting assembly 3 includes a lifting motor 301 fixedly connected to the top of the top plate 103, and a lead screw 302 fixedly connected to the output shaft of the lifting motor 301. The outer side of the threaded tube 303 is threaded with a threaded tube 303. The bottom of the threaded tube 303 is fixedly connected to a lifting plate 304. The positioning component 4 includes a cylindrical rod 401 that is movably sleeved on the surface of the lifting plate 304. The top of the cylindrical rod 401 is fixedly connected to a top block 402. The bottom of the cylindrical rod 401 is fixedly connected to a mounting plate 403. The bottom of the mounting plate 403 is fixedly connected to a fixing frame 405. The bottom of the fixing frame 405 is provided with a movable groove 406. The inner side of the movable groove 406 is movably sleeved with a positioning roller 407. The outer side of the cylindrical rod 401 is movably sleeved with a first spring 404. The first spring 404 is located between the lifting plate 304 and the mounting plate 403.

[0034] In the embodiment of the application, when in use, first place the fastener body 5 on the top of the placement plate 12, then control the lifting motor 301 to drive the screw rod 302 to rotate, under the threaded thrust of the screw rod 302, the threaded tube 303 drives the lifting plate 304 to move downward, so that the positioning roller 407 can press the top of the fastener body 5, and when pressing, the first spring 404 is compressed, avoiding the excessive pressure of the positioning roller 407 on the fastener body 5 from affecting the rotation of the fastener body 5 during processing, then the cylinder 202 drives the two thread rollers 205 to move towards each other, so that the thread rollers 205 contact the outer side of the fastener body 5, the driving motor 204 drives the thread rollers 205 to rotate, so that the thread rollers 205 extrude and roll the outer side of the fastener body 5;

[0035] After rolling the thread, the lifting motor 301 drives the lifting plate 304 to move vertically upward, so that the top of the fixing rod 702 contacts the touch switch 131, and the touch switch 131 transmits a signal to the blanking motor 601, which drives the cam 603 to rotate one revolution through the rotating rod 602, and the protruding end of the cam 603 pushes the push rod 605 to move to the front, so that the push rod 605 can push the processed fastener body 5 into the front collection mechanism, and when the protruding end of the cam 603 rotates to the back, under the elastic force of the reset spring 607, the push rod 605 moves to the back, facilitating workers to place the next fastener body 5 to be processed on the top of the placement plate 12.

[0036] The workbench 1 is fixedly connected with a support block 11 in the middle of the top, the support block 11 is fixedly connected with a placement plate 12 on the top, the surface of the top of the placement plate 12 is provided with an arc-shaped groove, the placement plate 12 is located in the same vertical direction as the positioning roller 407, and the arc-shaped groove can increase the contact area with the fastener body 5, avoiding the fastener body 5 from rolling on the surface of the placement plate 12.

[0037] In some examples, the front top and the back top of the lifting plate 304 are fixedly connected with positioning tubes 305, the top of the positioning tube 305 is movably sleeved with a positioning rod 306, and the top of the positioning rod 306 is fixedly connected with the bottom of the top plate 103.

[0038] Through the cooperation of the positioning tube 305 and the positioning rod 306, the lifting plate 304 can be positioned, so that the threaded tube 303 cannot rotate, and when the screw rod 302 rotates, the threaded tube 303 can move up and down.

[0039] In some examples, the back of the top of the lifting plate 304 is mounted with a pressing assembly 7, the pressing assembly 7 comprises a cylindrical frame 701 fixedly connected to the top of the lifting plate 304, a cylindrical groove 711 is formed in the inner side of the cylindrical frame 701, a fixed rod 702 is movably sleeved at the top of the cylindrical frame 701, a fixed ring 703 is fixedly sleeved on the outer side of the fixed rod 702, and a second spring 704 is movably sleeved on the bottom of the outer side of the fixed rod 702.

[0040] After the rolling is completed, the lifting motor 301 drives the lifting plate 304 to move vertically upward, so that the top of the fixed rod 702 is in contact with the touch switch 131, and the touch switch 131 transmits a signal to the blanking motor 601.

[0041] In some examples, the rolling assembly 2 comprises a supporting plate 201 fixedly connected to the top of the workbench 1, the side surface of the supporting plate 201 is fixedly connected with a gas cylinder 202, the piston end of the gas cylinder 202 is fixedly connected with a mounting frame 203, the back surface of the mounting frame 203 is fixedly connected with a driving motor 204, and the output shaft of the driving motor 204 is fixedly connected with a rolling roller 205.

[0042] The rolling assembly 2 is a common structure for rolling fasteners, and the working principle thereof will not be described here.

[0043] In some examples, the blanking assembly 6 comprises a blanking motor 601 fixedly connected to the top of the workbench 1, the output shaft of the blanking motor 601 is fixedly connected with a rotating rod 602, the outer side of the rotating rod 602 is fixedly sleeved with a cam 603, the back surface of the bottom of the top plate 103 is mounted with a touch switch 131, the touch switch 131 is electrically connected with the blanking motor 601 through wires, the push rod 605 is horizontally aligned with the fastener body 5, the blanking assembly 6 further comprises a bracket plate 604 fixedly connected to the top of the workbench 1, the front surface of the bracket plate 604 is movably sleeved with the push rod 605, the back surface of the push rod 605 is fixedly connected with a stop block 606, and the outer side of the push rod 605 is provided with a reset spring 607.

[0044] The touch switch 131 sends a signal to the blanking motor 601 every time, and the blanking motor 601 drives the cam 603 to rotate one circle, and the initial state of the cam 603 is that the protruding end of the cam 603 is located at the back surface, when the protruding end of the cam 603 rotates to the front surface, the push rod 605 can push the completed fastener body 5 to fall into the collecting mechanism on the front surface.

[0045] The working principle and use process of the utility model:

[0046] In use, first, the fastener body 5 is placed on the top of the placement plate 12, then the lifting motor 301 is controlled to drive the screw rod 302 to rotate, under the threaded thrust of the screw rod 302, the threaded tube 303 drives the lifting plate 304 to move downward, so that the positioning roller 407 can press the top of the fastener body 5, and at the same time, the first spring 404 is compressed to avoid the excessive pressure of the positioning roller 407 on the fastener body 5 from affecting the rotation of the fastener body 5 during processing, then the air cylinder 202 drives the two thread rollers 205 to move towards each other, so that the thread rollers 205 contact the outer side of the fastener body 5, the driving motor 204 drives the thread rollers 205 to rotate, so that the thread rollers 205 extrude and roll the outer side of the fastener body 5;

[0047] After rolling, the lifting motor 301 drives the lifting plate 304 to move vertically upward, so that the top of the fixing rod 702 contacts the touch switch 131, the touch switch 131 transmits a signal to the blanking motor 601, the blanking motor 601 drives the cam 603 to rotate one circle through the rotating rod 602, the protruding end of the cam 603 pushes the push rod 605 to move to the front, so that the push rod 605 can push the processed fastener body 5 into the front collection mechanism, when the protruding end of the cam 603 rotates to the back, under the elastic force of the reset spring 607, the push rod 605 moves to the back, so as to facilitate the worker to place the next fastener body 5 to be processed on the top of the placement plate 12

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, not to limit it, although the present disclosure has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present disclosure can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present disclosure, which should be covered in the scope of the claims of the present disclosure.

Claims

1. A high-precision thread forming device of a fastener thread rolling machine, comprising a workbench (1) and a fastener body (5), characterized in that: The bottom of the workbench (1) is fixedly connected with a supporting leg (101), both sides of the top of the workbench (1) are provided with a thread rolling assembly (2), the top of the thread rolling assembly (2) is provided with a top plate (103), the top of the top plate (103) is provided with a lifting assembly (3), the bottom of the lifting assembly (3) is provided with a positioning assembly (4), the back of the top of the workbench (1) is provided with a blanking assembly (6), the lifting assembly (3) comprises a lifting motor (301) fixedly connected to the top of the top plate (103), the output shaft of the lifting motor (301) is fixedly connected with a lead screw (302), the outer side of the lead screw (302) is threadedly sleeved with a threaded tube (303), the bottom of the threaded tube (303) is fixedly connected with a lifting plate (304), the positioning assembly (4) comprises a cylindrical rod (401) movably sleeved on the surface of the lifting plate (304), the top of the cylindrical rod (401) is fixedly connected with a top block (402), the bottom of the cylindrical rod (401) is fixedly connected with a mounting plate (403), the bottom of the mounting plate (403) is fixedly connected with a fixed frame (405), the bottom of the fixed frame (405) is provided with a movable groove (406), the inner side of the movable groove (406) is movably sleeved with a positioning roller (407), the outer side of the cylindrical rod (401) is movably sleeved with a first spring (404), and the first spring (404) is located between the lifting plate (304) and the mounting plate (403).

2. A high-precision thread forming device of a fastener thread rolling machine according to claim 1, characterized in that: The top of the workbench (1) is fixedly connected with a supporting block (11), and the top of the supporting block (11) is fixedly connected with a placing plate (12).

3. A high-precision thread forming device of a fastener thread rolling machine according to claim 1, characterized in that: The front and back of the top of the lifting plate (304) are fixedly connected with positioning pipes (305), the top of the positioning pipe (305) is movably sleeved with a positioning rod (306), and the top of the positioning rod (306) is fixedly connected with the bottom of the top plate (103).

4. The high-precision thread forming device of a fastener thread rolling machine according to claim 1, characterized in that: The back of the bottom of the top plate (103) is provided with a touch switch (131), and the back of the top of the lifting plate (304) is provided with a pressing assembly (7).

5. A high precision thread forming device for a fastener thread rolling machine as defined in claim 4 wherein: The pressing assembly (7) comprises a cylindrical frame (701) fixedly connected to the top of the lifting plate (304), a cylindrical groove (711) is formed in the inner side of the cylindrical frame (701), the top of the cylindrical frame (701) is movably sleeved with a fixed rod (702), the outer side of the fixed rod (702) is fixedly sleeved with a fixed ring (703), and the bottom of the outer side of the fixed rod (702) is movably sleeved with a second spring (704).

6. A high precision thread forming device for a fastener thread rolling machine as defined in claim 1 wherein: The thread rolling assembly (2) comprises a supporting plate (201) fixedly connected to the top of the workbench (1), the side of the supporting plate (201) is fixedly connected with an air cylinder (202), the piston end of the air cylinder (202) is fixedly connected with a mounting frame (203), the back of the mounting frame (203) is fixedly connected with a driving motor (204), and the output shaft of the driving motor (204) is fixedly connected with a thread rolling roller (205).

7. A high precision thread forming device for a fastener thread rolling machine as defined in claim 1 wherein: The blanking assembly (6) comprises a blanking motor (601) fixedly connected to the top of the workbench (1), an output shaft of the blanking motor (601) is fixedly connected with a rotating rod (602), and the outer side of the rotating rod (602) is fixedly sleeved with a cam (603).

8. A high precision thread forming device for a fastener thread rolling machine as defined in claim 1 wherein: The blanking assembly (6) further comprises a support plate (604) fixedly connected to the top of the workbench (1), the front of the support plate (604) is movably sleeved with a push rod (605), the back of the push rod (605) is fixedly connected with a stop block (606), the outer side of the push rod (605) is provided with a return spring (607), the return spring (607) is located between the stop block (606) and the support plate (604), and the push rod (605) is horizontally aligned with the fastener body (5).

9. A high precision thread forming device for a fastener thread rolling machine as defined in claim 4 wherein: The touch switch (131) is electrically connected with the blanking motor (601) through wires, and the touch switch (131) and the pressing assembly (7) are located in the same vertical direction.

10. A high precision thread forming device for a fastener thread rolling machine as defined in claim 2 wherein: The placement plate (12) is located in the same vertical direction with the positioning roller (407), and the surface of the top of the placement plate (12) is provided with an arc-shaped groove.

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