Automatic cold heading mechanism for long-rod bolt fastener

Abstract

The utility model provides an automatic cold heading mechanism for a long-rod bolt fastener, which comprises a frame and a side plate, a base is fixedly mounted at the top of the frame, a driving mechanism is arranged on the side wall of the frame and is in transmission connection with a rotating shaft, a cutting mechanism is fixedly mounted on the side wall of the frame, and the side plate is fixedly connected with the side wall of the frame and is in transmission connection with the rotating shaft. The side plates are fixedly connected with the two ends of the transverse plate correspondingly, and a clamping mechanism is arranged on the surface of the transverse plate and correspondingly arranged on one side of the cutting-off mechanism. Raw material conveying of long-rod bolt fasteners is achieved through the machine base, the multiple conveying rollers are used for stably conveying the raw materials, end clamping and fixing are achieved through the clamping sleeve, meanwhile, stable limiting of the clamping sleeve is achieved through cooperation of a transverse plate and a guide rod, and the raw materials can be stably fixed during cold heading operation; after the movable upsetting head is used for punch forming, rapid blanking is conducted through separation of the clamping sleeve, blanking collection is conducted after raw materials are cut, the cold upsetting machining efficiency is improved, and it can be guaranteed that cold upsetting operation is conducted smoothly.

Description

Technical Field

[0001] The utility model relates to an automatic cold heading mechanism for long rod bolt fasteners, belonging to the technical field of cold heading machines. Background Art

[0002] A cold heading machine is a special equipment mainly used for batch production of fasteners such as nuts and bolts. The cold heading machine transmits power through belt wheels and gears, and performs linear motion through a crank connecting rod and slider mechanism. Using a punch and a die, the blank of the processed part is plastically deformed or separated, so as to form the raw material (such as wire) into the required shape, such as fasteners like bolts and nuts. The cold heading machine has a wide application in the fastener industry, mainly used for producing automotive parts such as bolts, nuts, screws, pins and bearings, as well as building materials such as expansion screws, flat head nails, rivets and anchor bolts. In addition, the cold heading machine can also be used to produce some non-standard products, such as core-pulling aluminum rivets and semi-hollow iron rivets.

[0003] A cold heading machine is a device for processing parts such as bolts. When cold heading long rod bolt fasteners, it is difficult to ensure the stable clamping of the raw material when impacting the raw material, and due to the long length of the long rod bolt, it is not easy to quickly discharge the material after the cold heading operation is completed, reducing the cold heading processing efficiency, and it is difficult to quickly convey the raw material after cutting. Content of the Utility Model

[0004] The utility model provides an automatic cold heading mechanism for long rod bolt fasteners in order to solve the technical problem of low processing efficiency of long rod bolt fasteners.

[0005] The utility model solves the above technical problem through the following technical solutions:

[0006] The utility model provides an automatic cold heading mechanism for long rod bolt fasteners, including:

[0007] A frame, a base is fixedly installed on the top of the frame, a rotating shaft is rotatably connected inside the base, a conveying roller located inside the base is fixedly connected to the middle of the rotating shaft, a driving mechanism is arranged on the side wall of the frame, the driving mechanism is in transmission connection with the rotating shaft, and a cutting mechanism is fixedly installed on the side wall of the frame;

[0008] Side plates, the side plates are fixedly connected to the side walls of the frame, the side plates are respectively fixedly connected to both ends of a cross plate, a clamping mechanism is arranged on the surface of the cross plate, and the clamping mechanism is correspondingly arranged on one side of the cutting mechanism.

[0009] In this technical solution, the driving mechanism includes a motor, the motor is fixedly installed on the side wall of the machine base, the output end of the motor is fixedly connected to a pulley, the pulley at the output end of the motor is in transmission connection with three other pulleys through a belt, two of the pulleys are fixedly connected to a rotating shaft, and the other pulley is rotatably connected to the side wall of the machine base.

[0010] In this technical solution, the rotating shafts on both sides of the machine base are connected to pulleys, the rotating shaft and the pulley in the middle are fixedly connected to a first gear, the two first gears are meshed with each other, the rotating shafts on the other side of the machine base are fixedly connected to second gears, and every two second gears are meshed with each other.

[0011] In this technical solution, the number of the side plates is two, the two side plates are symmetrically distributed on both sides of the machine base, and a cutting mechanism is arranged between the two side plates.

[0012] In this technical solution, the cutting mechanism includes a first hydraulic cylinder, the first hydraulic cylinder is fixedly connected to the side wall of the machine base, the telescopic end of the first hydraulic cylinder is fixedly connected to a cutting knife, and the cutting knife is inserted through a cross plate.

[0013] In this technical solution, a knife holder is fixedly connected to the side wall of the machine base between the side plates, the knife holder is correspondingly arranged below the cutting knife, and a round hole for raw material conveying is opened inside the machine base between the knife holder and the cutting knife.

[0014] In this technical solution, the clamping mechanism includes a second hydraulic cylinder, the second hydraulic cylinder is fixedly installed on the outer wall of the side plate, the telescopic end of the second hydraulic cylinder is fixedly connected to a clamping sleeve, and the clamping sleeve is correspondingly arranged on one side of the round hole opened in the machine base.

[0015] In this technical solution, the clamping sleeve is in a semi-circular structure, the diameter of one end of the clamping sleeve is larger than that of the other end, the clamping sleeve contacts one side of the cross plate, the surface of the clamping sleeve is fixedly connected to a guide rod, and the guide rod is inserted through the side plate.

[0016] In this technical solution, the top of the clamping sleeve is fixedly connected to a slider, and the slider slides inside a long hole opened in the cross plate.

[0017] In this technical solution, a guide rail is fixedly installed on one side of the frame, a machine head slides on the surface of the guide rail, a pier head corresponding to the clamping sleeve is fixedly connected to the side wall of the machine head, a blanking port corresponding to the clamping sleeve is opened in the middle of the frame, the bottom of the frame is fixedly connected to a support leg, and a collection tank corresponding to the blanking port is arranged between the support legs.

[0018] On the basis of conforming to the common knowledge in the art, the above preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0019] The positive and progressive effects of the present utility model are as follows:

[0020] For the automatic cold heading mechanism of the long rod bolt fastener proposed above, it uses a machine base to realize the raw material transportation of the long rod bolt fastener, utilizes multiple conveying rollers for stable raw material transportation, and realizes end clamping and fixing through a jacket. At the same time, the stable limit of the jacket is realized by the cooperation of a cross plate and a guide rod, which can stably fix the raw material during the cold heading operation. After stamping and forming with a moving upsetting head, the long rod bolt can be quickly blanked through the separation of the jacket, and the raw material is cut and then blanked and collected, which is beneficial to improving the cold heading processing efficiency and ensuring the smooth progress of the cold heading operation. Description of the Drawings

[0021] Figure 1 It is a schematic three-dimensional structure diagram of the whole of the present utility model.

[0022] Figure 2 It is a schematic front view structure diagram of the present utility model.

[0023] Figure 3 It is a schematic side view structure diagram of the present utility model.

[0024] Description of the Reference Numerals in the Drawings

[0025] 1, frame; 2, machine base; 3, rotating shaft; 4, conveying roller; 5, first gear; 6, motor; 7, belt pulley; 8, belt; 9, first hydraulic cylinder; 10, cutting knife; 11, side plate; 12, cross plate; 13, slider; 14, jacket; 15, second hydraulic cylinder; 16, guide rod; 17, blanking port; 18, support leg; 19, collecting trough; 20, guide rail; 21, machine head; 22, upsetting head; 23, second gear; 24, tool holder. Detailed Embodiments

[0026] The present utility model will be further described below by way of examples, but the present utility model is not limited to the scope of the described examples.

[0027] As Figures 1-3 shown, the automatic cold heading mechanism of the long rod bolt fastener includes:

[0028] A frame 1, a machine base 2 is fixedly installed at the top of the frame 1, a rotating shaft 3 is rotatably connected inside the machine base 2, a conveying roller 4 located inside the machine base 2 is fixedly connected to the middle of the rotating shaft 3, a driving mechanism is provided on the side wall of the frame 1, the driving mechanism is in transmission connection with the rotating shaft 3, and a cutting mechanism is fixedly installed on the side wall of the frame 1;

[0029] Side plate 11, the side plate 11 is fixedly connected to the side wall of the frame 1, the side plate 11 is respectively fixedly connected to both ends of the cross plate 12, a clamping mechanism is arranged on the surface of the cross plate 12, and the clamping mechanism is correspondingly arranged on one side of the cutting mechanism.

[0030] The driving mechanism includes a motor 6, the motor 6 is fixedly installed on the side wall of the machine base 2, the output end of the motor 6 is fixedly connected to a belt pulley 7, the belt pulley 7 at the output end of the motor 6 is in transmission connection with three other belt pulleys 7 through a belt 8, two of the belt pulleys 7 are fixedly connected to a rotating shaft 3, and the other belt pulley 7 is rotatably connected to the side wall of the machine base 2; the rotating shafts 3 on both sides of the machine base 2 are both connected to the belt pulley 7, the rotating shaft 3 and the belt pulley 7 in the middle are both fixedly connected to a first gear 5, the two first gears 5 are meshed with each other, the rotating shafts 3 on the other side of the machine base 2 are both fixedly connected to a second gear 23, and every two second gears 23 are meshed with each other.

[0031] In this technical solution, when the motor 6 is started, the motor 6 drives one of the belt pulleys 7 to rotate, and drives the other three belt pulleys 7 to rotate synchronously by the transmission of the belt 8. At this time, the belt pulleys 7 on both sides drive the rotating shafts 3 to rotate in the same direction, the belt pulley 7 in the middle drives the first gear 5 to rotate, drives another rotating shaft 3 to rotate in the same direction by the transmission of the first gear 5, and the adjacent two rotating shafts 3 drive the rotating shaft 3 to rotate through the transmission of the second gear 23, thereby driving the conveying roller 4 to rotate, realizing the stable conveying of the raw material inside the machine base 2. The rotating shafts 3 on both sides are located below the raw material, and the rotating shaft 3 in the middle is located above the raw material, thereby realizing that the rotating shafts 3 above and below the raw material rotate in opposite directions.

[0032] The number of the side plates 11 is two, the two side plates 11 are symmetrically distributed on both sides of the machine base 2, and a cutting mechanism is arranged between the two side plates 11; the cutting mechanism includes a first hydraulic cylinder 9, the first hydraulic cylinder 9 is fixedly connected to the side wall of the machine base 2, the telescopic end of the first hydraulic cylinder 9 is fixedly connected to a cutting knife 10, and the cutting knife 10 is inserted through the cross plate 12; a knife holder 24 is fixedly connected to the side wall of the machine base 2 between the side plates 11, the knife holder 24 is correspondingly arranged below the cutting knife 10, and a round hole for raw material conveying is opened inside the machine base 2 between the knife holder 24 and the cutting knife 10.

[0033] In this technical solution, after the raw material is cold-heading processed, the first hydraulic cylinder 9 extends to drive the cutting knife 10 to move downwards, so that the cutting knife 10 cuts the raw material, and the quick cutting is realized through the cooperation of the cutting knife 10 and the knife holder 24, so that the cold-headed long bolt fasteners are quickly discharged.

[0034] The clamping mechanism includes a second hydraulic cylinder 15, which is fixedly installed on the outer wall of the side plate 11. The telescopic end of the second hydraulic cylinder 15 is fixedly connected to the clamping sleeve 14, and the clamping sleeve 14 is correspondingly arranged on one side of the circular hole opened in the machine base 2. The clamping sleeve 14 is of a semi-circular structure. The diameter of one end of the clamping sleeve 14 is larger than that of the other end. The clamping sleeve 14 contacts one side of the cross plate 12. The surface of the clamping sleeve 14 is fixedly connected to the guide rod 16, and the guide rod 16 is inserted through the side plate 11. The top of the clamping sleeve 14 is fixedly connected to the slider 13, and the slider 13 is slidably connected inside the long hole opened in the cross plate 12.

[0035] In this technical solution, after the raw material is conveyed to one side of the machine base 2, the second hydraulic cylinder 15 is started to extend to drive the clamping sleeve 14 to clamp the raw material. When the clamping sleeve 14 moves, it drives the slider 13 to slide inside the cross plate 12, and the guide rod 16 always moves inside the side plate 11. The clamping sleeve 14 always contacts the side end of the cross plate 12, so as to realize the stable cooperation between the clamping sleeve 14 and the upsetting head 22 after the raw material is stabilized for stable processing.

[0036] One side of the frame 1 is fixedly installed with a guide rail 20. The surface of the guide rail 20 is slidably connected with a machine head 21. The side wall of the machine head 21 is fixedly connected with an upsetting head 22 corresponding to the distribution of the clamping sleeve 14. The middle of the frame 1 is provided with a blanking port 17 corresponding to the distribution of the clamping sleeve 14. The bottom of the frame 1 is fixedly connected with support legs 18, and a collection tank 19 corresponding to the blanking port 17 is arranged between the support legs 18.

[0037] In this technical solution, after the raw material is stabilized, the stable movement of the machine head 21 is realized by using the guide rail 20. The machine head 21 drives the upsetting head 22 to contact the raw material exposed at the clamping sleeve 14. After cold heading processing is realized through the limiting of the clamping sleeve 14 by the slider 13, the guide rod 16 and the cross plate 12, the long rod bolt fasteners fall into the collection tank 19 through the blanking port 17 for collection after being cut, improving the cold heading processing efficiency.

[0038] The present utility model is not limited to the above embodiments. No matter what changes are made in its shape or structure, they all fall within the protection scope of the present utility model. The protection scope of the present utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present utility model, but these changes and modifications all fall within the protection scope of the present utility model.

Claims

1. An automatic cold heading mechanism for long rod bolt fasteners, characterized in that, Comprising: A frame (1), on the top of the frame (1) is fixedly installed a machine base (2), inside the machine base (2) is rotatably connected a rotating shaft (3), in the middle of the rotating shaft (3) is fixedly connected a conveying roller (4) located inside the machine base (2), on the side wall of the frame (1) is provided a driving mechanism, the driving mechanism is in transmission connection with the rotating shaft (3), and on the side wall of the frame (1) is fixedly installed a cutting mechanism; Side plates (11), the side plates (11) are fixedly connected to the side wall of the frame (1), the side plates (11) are respectively fixedly connected to both ends of a cross plate (12), on the surface of the cross plate (12) is provided a clamping mechanism, and the clamping mechanism is correspondingly arranged on one side of the cutting mechanism.

2. The automatic cold heading mechanism for the long rod bolt fastener according to claim 1, characterized in that: The driving mechanism includes a motor (6), the motor (6) is fixedly installed on the side wall of the machine base (2), the output end of the motor (6) is fixedly connected to a belt pulley (7), the belt pulley (7) at the output end of the motor (6) is in transmission connection with three other belt pulleys (7) through a belt (8), two of the belt pulleys (7) are fixedly connected to the rotating shaft (3), and the other belt pulley (7) is rotatably connected to the side wall of the machine base (2).

3. The automatic cold heading mechanism for long rod bolt fasteners according to claim 2, characterized in that: The rotating shafts (3) on both sides of the machine base (2) are both connected to the belt pulley (7), the rotating shaft (3) and the belt pulley (7) located in the middle are both fixedly connected to a first gear (5), the two first gears (5) are meshed with each other, the rotating shafts (3) on the other side of the machine base (2) are both fixedly connected to a second gear (23), and every two second gears (23) are meshed with each other.

4. The automatic cold heading mechanism for the long rod bolt fastener according to claim 1, characterized in that: The number of the side plates (11) is two, the two side plates (11) are symmetrically distributed on both sides of the machine base (2), and a cutting mechanism is arranged between the two side plates (11).

5. The automatic cold heading mechanism for long rod bolt fasteners according to claim 4, characterized in that: The cutting mechanism includes a first hydraulic cylinder (9), the first hydraulic cylinder (9) is fixedly connected to the side wall of the machine base (2), the telescopic end of the first hydraulic cylinder (9) is fixedly connected to a cutting knife (10), and the cutting knife (10) is inserted through the cross plate (12).

6. The automatic cold heading mechanism for long rod bolt fasteners according to claim 1, characterized in that: On the side wall of the machine base (2) is fixedly connected a knife holder (24) located between the side plates (11), the knife holder (24) is correspondingly arranged below the cutting knife (10), and inside the machine base (2) between the knife holder (24) and the cutting knife (10) is opened a round hole for raw material conveying.

7. The automatic cold heading mechanism for long rod bolt fasteners according to claim 1, characterized in that: The clamping mechanism includes a second hydraulic cylinder (15), the second hydraulic cylinder (15) is fixedly installed on the outer wall of the side plate (11), the telescopic end of the second hydraulic cylinder (15) is fixedly connected to a clamping sleeve (14), and the clamping sleeve (14) is correspondingly arranged on one side of the round hole opened in the machine base (2).

8. The automatic cold heading mechanism for long bolt fasteners according to claim 7, characterized in that: The clamping sleeve (14) is of a semi-circular structure, the diameter of one end of the clamping sleeve (14) is larger than that of the other end, the clamping sleeve (14) is in contact with one side of the cross plate (12), the surface of the clamping sleeve (14) is fixedly connected to a guide rod (16), and the guide rod (16) is inserted through the side plate (11).

9. The automatic cold heading mechanism for long rod bolt fasteners according to claim 7, wherein: The top of the clamping sleeve (14) is fixedly connected to a slider (13), and the slider (13) slides inside a long hole opened in the cross plate (12).

10. The automatic cold heading mechanism for long rod bolt fasteners according to claim 1, characterized in that: One side of the frame (1) is fixedly installed with a guide rail (20), the surface of the guide rail (20) is slidably connected with a machine head (21), and a pier head (22) corresponding to the distribution of the jacket (14) is fixedly connected to the side wall of the machine head (21). A blanking port (17) corresponding to the distribution of the jacket (14) is opened in the middle of the frame (1). The bottom of the frame (1) is fixedly connected with a support leg (18), and a collection tank (19) corresponding to the blanking port (17) is arranged between the support legs (18).

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