Shearing mechanism of screw heading cold heading machine

Abstract

The utility model discloses a shearing mechanism of a screw heading cold heading machine, which comprises a machine frame, a machine base is welded at the top end of the machine frame, a tool apron is arranged at one end of the machine base, and a cutter is arranged in the tool apron; the reciprocating driving mechanism is arranged in the machine base, the reciprocating driving mechanism comprises a movable frame, lower convex teeth, a first rotating driving piece, a rotating disc, a convex rod and upper convex teeth, the movable frame is arranged in the machine base, and the lower convex teeth are all arranged on the inner wall of the bottom of the movable frame; the upper protruding teeth are arranged on the inner wall of the top of the movable frame, the first rotary driving part is installed on one side in the machine base, the rotary disc is installed at the output end of the first rotary driving part, and the protruding rods are fixed to the outer wall of the rotary disc. According to the utility model, the cutter is stable and reliable in movement, accurate in cutting, small in vibration, low in noise and good in shearing effect, and the cutter is ensured to cut materials at a constant speed.

Description

Technical Field

[0001] The utility model relates to the technical field of screw heading cold heading machines, in particular to a shearing mechanism of a screw heading cold heading machine. Background Art

[0002] The screw heading cold heading machine is a professional equipment used for processing metal products. It is mainly used for processing various bolts, threads, etc. The working principle of the screw heading cold heading machine is similar to that of the screw heading machine, but it uses the cold working theory to process the material into the required shape and size through cold deformation. The cold heading machine has the characteristics of high processing efficiency, high processing precision, high processing hardness, etc., and is widely used in the fields of automobile, electronics, machinery manufacturing, etc.

[0003] When the screw heading cold heading machine is working, the head-forming material needs to be cut off through the shearing mechanism. The shearing mechanism is generally composed of a driving part and a cutter. However, when driving the cutter to move, there is a lack of effective guidance, which leads to the cutter movement is not smooth enough, the shearing is not precise enough, and there is large vibration and noise. It is also difficult to ensure that the cutter cuts the material at a uniform speed, which affects the shearing effect. Therefore, it is urgently needed to be improved. Utility Model Content

[0004] The utility model aims to provide a shearing mechanism for a screw heading cold heading machine to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a shearing mechanism of a screw heading cold heading machine, comprising:

[0006] A frame, wherein a base is welded on the top of the frame, a knife seat is arranged at one end of the base, a cutter is arranged inside the knife seat, and threaded holes are arranged at the top and bottom of the cutter;

[0007] A reciprocating drive mechanism, the reciprocating drive mechanism is arranged inside the machine base, the reciprocating drive mechanism includes a movable frame, lower convex teeth, a first rotating drive member, a turntable, a convex rod, and an upper convex tooth. The movable frame is arranged inside the machine base, the lower convex teeth are all arranged on the inner wall of the bottom of the movable frame, the upper convex teeth are all arranged on the inner wall of the top of the movable frame, the first rotating drive member is installed on one side inside the machine base, and the output end of the first rotating drive member extends to the inner side of the movable frame, the turntable is installed at the output end of the first rotating drive member, the convex rods are all fixed on the outer wall of the turntable, and the convex rods cooperate with the lower convex teeth and the upper convex teeth.

[0008] Preferably, a grinding mechanism is provided at the top of the machine base, and the grinding mechanism includes a stand, a bracket, a grinding disc, a second telescopic drive member, and a second rotating drive member. The stand is welded to one side of the top of the machine base, and the bracket is arranged below the stand. The second telescopic drive member is installed on the outer walls on both sides of the bracket, and the output end of the second telescopic drive member passes through the bracket, the second rotating drive member is installed at the output end of the second telescopic drive member, and the grinding disc is installed at the output end of the second rotating drive member, so as to facilitate grinding the cutter.

[0009] Preferably, the reciprocating drive mechanism also includes a lower limit tooth, an upper limit tooth, and a slide groove. The lower limit tooth is arranged on the inner wall of the movable frame on one side of the lower convex tooth, and the upper limit tooth is arranged on the inner wall of the movable frame on one side of the upper convex tooth, so as to facilitate limiting the convex rod.

[0010] Preferably, the slide grooves are arranged at the top and bottom ends of the movable frame to facilitate guiding the balls.

[0011] Preferably, circular grooves with equal spacing are arranged on the inner wall of the base at the position of the slide groove, and balls are arranged inside the circular grooves, and one side of the balls extends into the interior of the slide groove, so as to guide the movable frame and reduce friction resistance.

[0012] Preferably, mounting holes are provided at the top and bottom ends of the knife holder, and mounting bolts are passed through the mounting holes, and one end of the mounting bolts extends into the threaded hole and is threadedly connected thereto, for connecting the cutter to the knife holder.

[0013] Preferably, the polishing mechanism also includes a first telescopic driving member, which is installed on one side of the top of the stand, and the output end of the first telescopic driving member passes through the stand and is fixedly connected to the bracket to facilitate driving the stand to move up and down.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: the shearing mechanism of the screw heading cold heading machine is provided with a base, a movable frame, a lower convex tooth, a lower limit tooth, a first rotating drive member, a turntable, a convex rod, an upper convex tooth, an upper limit tooth, a slide groove, a circular groove, and a ball. When the screw heading cold heading machine is working, the first rotating drive member drives the turntable to rotate, and the turntable drives the convex rod to rotate. When the convex rod rotates to the bottom, the lower limit tooth limits the convex rod, and the convex rod meshes with the lower convex tooth and drives the movable frame to translate to the left. The movable frame extends from the inside of the base and drives the cutter to translate synchronously. The cutter cuts the material. Then, the turntable continues to rotate. When the convex rod rotates to the top, The upper limit tooth limits the convex rod, the convex rod meshes with the upper convex tooth and drives the movable frame to translate to the right, the movable frame retracts into the inside of the machine base and drives the cutter to translate back, the cutter moves away from the discharge port, and the next step of heading work can be carried out, and this reciprocating drive is completed. The shearing mechanism adopts a reciprocating drive mechanism as the driving mode. The reciprocating drive of the reciprocating drive mechanism is stable and reliable, so that the cutter can cut the material accurately, and when the movable frame translates left and right, the ball inside the circular groove rolls inside the slide groove to guide the movable frame, and the friction resistance is small, the vibration is small, the noise is small, and it is driven by the rotation of the turntable to ensure that the cutter cuts the material at a uniform speed and the shearing effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0016] Figure 2 It is an enlarged structural diagram of the reciprocating drive mechanism of the utility model;

[0017] Figure 3 It is a schematic diagram of the cutaway enlarged structure of the knife holder of the utility model;

[0018] Figure 4 It is an enlarged structural diagram of the grinding mechanism of the utility model;

[0019] Figure 5 It is a schematic diagram of the enlarged side view of the grinding disc of the utility model.

[0020] In the figure: 1. frame; 2. base; 3. reciprocating drive mechanism; 301. movable frame; 302. lower convex tooth; 303. lower limit tooth; 304. first rotary drive member; 305. turntable; 306. convex rod; 307. upper convex tooth; 308. upper limit tooth; 309. slide groove; 4. knife holder; 401. mounting hole; 402. mounting bolt; 5. cutter; 501. threaded hole; 6. grinding mechanism; 601. stand; 602. bracket; 603. grinding disc; 604. first telescopic drive member; 605. second telescopic drive member; 606. second rotary drive member; 7. circular groove; 8. ball bearing. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the utility model shall fall within the scope of protection of the utility model.

[0022] See also Figure 1-5 The utility model provides an embodiment: a shearing mechanism of a screw heading cold heading machine, comprising:

[0023] A frame 1, a base 2 is welded on the top of the frame 1, a knife seat 4 is arranged at one end of the base 2, a cutter 5 is arranged inside the knife seat 4, and threaded holes 501 are arranged at the top and bottom of the cutter 5;

[0024] The reciprocating drive mechanism 3 is arranged inside the machine base 2. The reciprocating drive mechanism 3 includes a movable frame 301, a lower convex tooth 302, a first rotating drive member 304, a rotating disk 305, a convex rod 306, and an upper convex tooth 307. The movable frame 301 is arranged inside the machine base 2. The lower convex teeth 302 are all arranged on the inner wall of the bottom of the movable frame 301. The upper convex teeth 307 are all arranged on the inner wall of the top of the movable frame 301. The first rotating drive member 304 is installed on one side inside the machine base 2, and the output end of the first rotating drive member 304 extends to the inner side of the movable frame 301. The rotating disk 305 is installed at the output end of the first rotating drive member 304. The convex rods 306 are all fixed on the outer wall of the rotating disk 305, and the convex rods 306 cooperate with the lower convex teeth 302 and the upper convex teeth 307.

[0025] After the cutting is completed, the first rotating drive member 304 drives the rotary disk 305 to rotate, and the rotary disk 305 drives the protruding rod 306 to rotate. When the protruding rod 306 rotates to the bottom, the lower limit tooth 303 limits the protruding rod 306, and the protruding rod 306 meshes with the lower protruding tooth 302 and drives the movable frame 301 to translate to the left. The movable frame 301 extends from the inside of the machine base 2 and drives the cutter 5 to translate synchronously, and the cutter 5 cuts the material. Then, the rotary disk 305 continues to rotate. When the protruding rod 306 rotates to the top, the upper limit tooth 308 limits the protruding rod 306, and the protruding rod 306 meshes with the upper protruding tooth 307 and drives the movable frame 301 to translate to the right. The movable frame 301 retracts into the inside of the machine base 2 and drives the cutter 5 to translate back. The cutter 5 moves away from the discharge port, and the next step of cutting can be carried out. This reciprocating process completes the shearing work.

[0026] A grinding mechanism 6 is provided at the top of the machine base 2, and the grinding mechanism 6 includes a stand 601, a bracket 602, a grinding disc 603, a second telescopic driving member 605, and a second rotating driving member 606. The stand 601 is welded to one side of the top of the machine base 2, and the bracket 602 is arranged below the stand 601. The second telescopic driving member 605 is installed on the outer walls on both sides of the bracket 602, and the output end of the second telescopic driving member 605 passes through the bracket 602. The second rotating driving member 606 is installed at the output end of the second telescopic driving member 605, and the grinding disc 603 is installed at the output end of the second rotating driving member 606, so as to facilitate grinding the cutter 5;

[0027] The reciprocating drive mechanism 3 further includes a lower limit tooth 303, an upper limit tooth 308, and a slide groove 309. The lower limit tooth 303 is arranged on the inner wall of the movable frame 301 on one side of the lower convex tooth 302, and the upper limit tooth 308 is arranged on the inner wall of the movable frame 301 on one side of the upper convex tooth 307, so as to limit the convex rod 306.

[0028] The slide grooves 309 are arranged at the top and bottom of the movable frame 301 to facilitate guiding the ball 8;

[0029] The inner wall of the base 2 at the position of the slide groove 309 is provided with circular grooves 7 with equal spacing, and a ball 8 is provided inside the circular groove 7, and one side of the ball 8 extends to the inside of the slide groove 309, so as to guide the movable frame 301 and reduce friction resistance;

[0030] The top and bottom ends of the knife holder 4 are both provided with mounting holes 401, and mounting bolts 402 are passed through the mounting holes 401, and one end of the mounting bolts 402 extends into the threaded hole 501 and is threadedly connected thereto, for connection between the cutter 5 and the knife holder 4;

[0031] The polishing mechanism 6 also includes a first telescopic driving member 604, which is installed on one side of the top of the stand 601, and the output end of the first telescopic driving member 604 passes through the stand 601 and is fixedly connected to the bracket 602, so as to drive the stand 601 to move up and down;

[0032] Specifically, the first telescopic drive member 604 is started to drive the bracket 602 to move downward, so that the grinding disc 603 moves down to both sides of the cutter 5, the second telescopic drive member 605 drives the grinding disc 603 to translate, so that the grinding disc 603 is close to the cutter 5, and the second rotating drive member 606 drives the grinding disc 603 to rotate, and the grinding disc 603 grinds the cutter 5, thereby improving the sharpness of the cutter 5 and making the cutting smoother.

[0033] When the embodiment of the present application is in use: first, the shearing mechanism is arranged on one side of the discharge port of the screw heading cold heading machine, and the shearing mechanism is mainly composed of a frame 1, a machine base 2, a reciprocating drive mechanism 3, a knife seat 4, and a cutter 5, wherein the knife seat 4 and the cutter 5 are shearing parts, and the reciprocating drive mechanism 3 is a driving part. The reciprocating drive mechanism 3 is composed of a movable frame 301, a lower convex tooth 302, a lower limit tooth 303, a first rotating drive member 304, a turntable 305, a convex rod 306, an upper convex tooth 307, an upper limit tooth 308, and a slide groove 309. When the screw heading cold heading machine is working, the reciprocating drive mechanism 3 drives the cutter 5 to reciprocate horizontally, and the cutter 5 cuts the raw material. The cutting operation is performed. Specifically, after the heading is completed, the first rotating driving member 304 drives the rotating disk 305 to rotate, and the rotating disk 305 drives the protruding rod 306 to rotate. When the protruding rod 306 rotates to the bottom, the lower limit tooth 303 limits the protruding rod 306, and the protruding rod 306 meshes with the lower protruding tooth 302 and drives the movable frame 301 to translate to the left. The movable frame 301 extends from the inside of the machine base 2 and drives the cutter 5 to translate synchronously. The cutter 5 cuts the material. Then, the rotating disk 305 continues to rotate. When the protruding rod 306 rotates to the top, the upper limit tooth 308 limits the protruding rod 306. The protruding rod 306 meshes with the upper protruding tooth 307 and drives the movable frame 301 to translate to the left. The movable frame 301 is moved horizontally to the right, and the movable frame 301 is retracted into the inside of the machine base 2 and drives the cutter 5 to move horizontally back. The cutter 5 is removed from the discharge port, and the next step of heading work can be carried out. This reciprocating process completes the shearing work. The shearing mechanism adopts the reciprocating drive mechanism 3 as the driving mode. The reciprocating drive of the reciprocating drive mechanism 3 is stable and reliable, so that the cutter 5 can cut the material accurately. Moreover, when the movable frame 301 is translated left and right, the ball 8 inside the circular groove 7 rolls inside the slide groove 309 to guide the movable frame 301. In addition, the friction resistance is small, the vibration is small, the noise is small, and the drive is driven by the rotation of the turntable 305, which ensures that the cutter 5 cuts the material at a uniform speed, and the shearing effect is good. , the screw heading cold heading machine stops working, and the first telescopic driving member 604 is started to drive the bracket 602 to move downward, so that the grinding disc 603 moves down to both sides of the cutter 5, and the second telescopic driving member 605 drives the grinding disc 603 to translate, so that the grinding disc 603 is close to the cutter 5, and the second rotating driving member 606 drives the grinding disc 603 to rotate, and the grinding disc 603 grinds the cutter 5, thereby improving the sharpness of the cutter 5 and making the shearing smoother. When the cutter 5 needs to be disassembled, the mounting bolt 402 inside the mounting hole 401 is unscrewed from the threaded hole 501, so that the cutter 5 can be separated from the knife seat 4, so that the cutter 5 is easy to disassemble and replace.

[0034] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0035] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0036] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A shearing mechanism for a screw heading cold heading machine, characterized in that: include: A frame (1), a base (2) is welded to the top of the frame (1), a knife seat (4) is provided at one end of the base (2), a cutter (5) is provided inside the knife seat (4), and threaded holes (501) are provided at the top and bottom of the cutter (5); A reciprocating drive mechanism (3), the reciprocating drive mechanism (3) being arranged inside a machine base (2), the reciprocating drive mechanism (3) comprising a movable frame (301), lower convex teeth (302), a first rotating drive member (304), a rotating disk (305), a convex rod (306), and an upper convex tooth (307), the movable frame (301) being arranged inside the machine base (2), the lower convex teeth (302) being arranged on the inner wall at the bottom of the movable frame (301), and the upper convex teeth (307) being arranged on the inner wall at the bottom of the movable frame (301). The first rotating driving member (304) is mounted on the inner wall of the top of the movable frame (301), the first rotating driving member (304) is mounted on one side of the inside of the machine base (2), and the output end of the first rotating driving member (304) extends to the inner side of the movable frame (301), the rotating disk (305) is mounted on the output end of the first rotating driving member (304), the protruding rods (306) are fixed on the outer wall of the rotating disk (305), and the protruding rods (306) cooperate with the lower protruding teeth (302) and the upper protruding teeth (307).

2. The shearing mechanism of the screw heading cold heading machine according to claim 1, characterized in that: A grinding mechanism (6) is provided at the top of the machine base (2), and the grinding mechanism (6) includes a stand (601), a bracket (602), a grinding disc (603), a second telescopic driving member (605), and a second rotating driving member (606). The stand (601) is welded to one side of the top of the machine base (2), the bracket (602) is arranged below the stand (601), the second telescopic driving member (605) is installed on the outer walls on both sides of the bracket (602), and the output end of the second telescopic driving member (605) passes through the bracket (602), the second rotating driving member (606) is installed at the output end of the second telescopic driving member (605), and the grinding disc (603) is installed at the output end of the second rotating driving member (606).

3. The shearing mechanism of the screw heading cold heading machine according to claim 1, characterized in that: The reciprocating drive mechanism (3) further comprises a lower limit tooth (303), an upper limit tooth (308), and a slide groove (309); the lower limit tooth (303) is arranged on the inner wall of the movable frame (301) on one side of the lower convex tooth (302); and the upper limit tooth (308) is arranged on the inner wall of the movable frame (301) on one side of the upper convex tooth (307).

4. The shearing mechanism of the screw heading cold heading machine according to claim 3, characterized in that: The slide grooves (309) are both arranged at the top and bottom of the movable frame (301).

5. The shearing mechanism of the screw heading cold heading machine according to claim 3, characterized in that: Circular grooves (7) with equal spacing are arranged on the inner wall of the machine base (2) at the position of the slide groove (309), and a ball (8) is arranged inside the circular groove (7), and one side of the ball (8) extends to the inside of the slide groove (309).

6. The shearing mechanism of the screw heading cold heading machine according to claim 1, characterized in that: The top and bottom ends of the knife seat (4) are both provided with mounting holes (401), and a mounting bolt (402) is passed through the interior of the mounting hole (401), and one end of the mounting bolt (402) extends into the interior of the threaded hole (501) and is threadedly connected thereto.

7. The shearing mechanism of the screw heading cold heading machine according to claim 2, characterized in that: The polishing mechanism (6) further comprises a first telescopic driving member (604), wherein the first telescopic driving member (604) is mounted on one side of the top of the stand (601), and an output end of the first telescopic driving member (604) passes through the stand (601) and is fixedly connected to the bracket (602).

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