CN213559375U

CN213559375U - Transmission device for upper and lower punching dies of one-die two-die screw heading machine

Info

Publication number: CN213559375U
Application number: CN202021938508.3U
Authority: CN
Inventors: 李伟勤
Original assignee: Zhejiang Baotuo Machinery Co Ltd
Current assignee: Zhejiang Baotuo Machinery Co Ltd
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2021-06-29
Anticipated expiration: 2030-09-07

Abstract

The utility model discloses a two transmission of punching die from top to bottom of screw heading machine of a mould include the frame, rotate the drive assembly who is connected, the punching die subassembly and the impact subassembly that one end is used for promoting punching die subassembly and the other end and thrust unit to be connected with the drive assembly with the frame. The utility model discloses an impact subassembly strikes and cooperates with the work piece of mould and accomplishes one and assaults the die holder of die subassembly, and the impact subassembly resets, and drive assembly promotes the die subassembly and upwards moves the position that is parallel and level with the mould mutually, and rethread impact subassembly strikes the die subassembly and moves the die walking board to the direction of mould, and two die holders cooperate with the work piece of mould and accomplish two and assault, have reduced the regulation of the mould or two die holders after one assault and have contacted with the mould artificially, have improved two accuracy and have assaulted security and work efficiency of punching; and through mutual transmission among all rocker arms, the size of noise generated when the transmission assembly pushes the die stamping assembly is reduced.

Description

Transmission device for upper and lower punching dies of one-die two-die screw heading machine

Technical Field

The utility model belongs to the technical field of screw processing, in particular to two transmission of punching die from top to bottom of machine of taking lead of a mould.

Background

The heading machine belongs to cold heading equipment, has the functions of punching a one-die two-punch product, is mainly used for forming the head of a screw product, and has the working principles of straightening a wire rod, feeding the wire rod, shearing the wire rod, feeding the wire rod into a main die, performing first punching and initial forging, and withdrawing a two-punch formed blank. Various metal materials can be upset: the material is common steel, carbon steel, stainless steel, copper, aluminum, alloy steel and the like, and has wide application. Stainless steel, alloy steel and other materials may be heated to proper temperature by heater for upsetting, and the heading machine may be used in making common tapping screw, electric appliance screw, miniature screw, inner and outer hexagon bolt, drilling screw, fiber board screw and other products.

In the existing screw heading machine, after a workpiece is punched on a punching die seat, the adjusting position of a punched die needs to be manually aligned to a second punching die seat for secondary punching or manually aligned to a punched die for secondary punching, which is very troublesome; and the die just after punching is in a high-temperature state, and scalding is easily caused by manually adjusting the position of the die after punching.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a transmission device for upper and lower dies of a one-die two-die screw heading machine, which can solve the above problems.

The utility model provides a transmission of upper and lower die of two towards screw heading machines of a mould which characterized in that: the transmission device of the upper and lower punching dies of the one-die two-die screw heading machine comprises a rack, a transmission assembly with one end rotatably connected with the rack, and a punching die assembly connected with the other end of the transmission assembly, wherein the transmission assembly is used for driving the punching die assembly to move up and down, and an impact assembly with one end used for pushing the punching die assembly and the other end connected with a pushing device; after the impact assembly pushes the die assembly, the first die holder and the workpiece in the corresponding die are subjected to primary die punching, the impact assembly resets, then the transmission assembly pushes the die assembly to move upwards, the impact assembly pushes the die assembly again, and the second die holder and the workpiece in the corresponding die are subjected to secondary die punching.

Further, the transmission assembly comprises a conjugate cam, a first transmission shaft, a second transmission shaft, a third transmission shaft, two first rocker arms, a second rocker arm, a third rocker arm, a fourth rocker arm, an upper walking board and a lower walking board, the first transmission shaft, the second transmission shaft, the third transmission shaft, the two first rocker arms, the two second rocker arms, the third rocker arm and the fourth rocker arm are arranged in the middle of the conjugate cam and are rotatably connected with the frame, the upper walking board and the lower walking board are respectively arranged at two ends of each first rocker arm, each first rocker arm is provided with an attached rotating shaft at one end through the attached rotating shaft and is rotatably connected with the conjugate cam, the other end of each first rocker arm is rotatably connected with the second transmission shaft through the attached rotating shaft, the two ends of each second rocker arm are provided with the attached rotating shaft, one end of each second rocker arm is rotatably connected with a screw rod, one end of each screw rod, the third rocking arm other end is equipped with attached pivot just passes through attached pivot with the third transmission shaft rotates to be connected, fourth rocking arm one end is equipped with attached pivot just passes through attached pivot with the third transmission shaft rotates to be connected, the fourth rocking arm other end with walk a horizontal sliding connection from top to bottom, walk from top to bottom the platform with the die walks a joint fixed.

Furthermore, the upper and lower walking boards are provided with grooves, and the stamping die walking board is close to one end of the upper and lower walking boards and is arranged in the grooves and fixedly connected with the upper and lower walking boards in a clamping mode.

Furthermore, the upper walking platform and the lower walking platform are provided with a transverse sliding groove and a sliding block which is positioned in the transverse sliding groove and is in sliding connection with the transverse sliding groove, and the sliding block is fixedly connected with one end of the fourth rocker arm.

Furthermore, one end of the upper and lower walking boards, which is far away from the die walking board, is provided with a lower pressing plate fixedly connected with the upper and lower walking boards.

Furthermore, the upper and lower walking platforms are also provided with cushion blocks, and the upper and lower walking platforms sequentially penetrate through the fixing parts and are fixedly connected with the lower pressing plate.

Furthermore, the middle part of the screw rod is provided with an adjusting nut for adjusting the length of the screw rod.

Furthermore, the impact assembly comprises a fourth transmission shaft, an impact connecting rod and an impact block, wherein one end of the fourth transmission shaft is rotatably connected with the pushing device, one end of the impact connecting rod is rotatably connected with the fourth transmission shaft, one end of the impact block is fixedly connected with the other end of the impact connecting rod, and the other end of the impact block is used for pushing the die walking board.

Furthermore, the die walking board is far away from one end of the upper walking board and the lower walking board is provided with a limiting part, and the impact block is arranged on a limiting block corresponding to and matched with the limiting part.

Compared with the prior art, the utility model provides a two drive arrangement that punch the upper and lower die of screw heading machine of a mould strikes the die assembly through the impact subassembly, the die walks to be close to the direction of mould on the platform, the work piece of die bed and mould cooperatees and accomplishes one and dash, the impact subassembly resets, then promote the die assembly through drive subassembly and upwards move, move to the position that two die beds are parallel and level with the mould mutually, the rethread impact subassembly strikes the die assembly and walks to the direction of mould with the die and moves, two die beds cooperate with the work piece of mould and accomplish two and dash, the regulation of the mould after having reduced the manual work to one to dash or two die beds and the contact of manual work and mould have improved two and have dashed the precision and increased security and work efficiency; and through mutual transmission among the first rocker arm, the second rocker arm, the third rocker arm and the fourth rocker arm, the noise generated when the die assembly is pushed by the transmission assembly can be reduced.

Drawings

Fig. 1 is a schematic structural view of the first punching of the transmission device of the upper and lower punching dies of the one-die two-punch screw heading machine provided by the present invention.

Fig. 2 is a schematic structural diagram of fig. 1 during the second stroke.

Detailed Description

Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.

As shown in fig. 1 to fig. 2, it is a schematic structural diagram of the transmission device of the upper and lower dies of the one-die two-die screw heading machine provided by the present invention. A transmission device for an upper die and a lower die of a one-die two-die screw heading machine comprises a rack (not marked in the figure), a transmission assembly 100 with one end rotatably connected with the rack (not marked in the figure), a die assembly 200 connected with the other end of the transmission assembly 100, wherein the transmission assembly 100 is used for driving the die assembly 200 to move up and down, and an impact assembly 300 with one end used for pushing the die assembly 200 and the other end connected with a pushing device, the die assembly 200 comprises a die walking platform 201, a die holder 202 arranged on the die walking platform 201, and a die holder 203 and a die holder 204 which are arranged on the die holder 202; after the impact assembly 300 pushes the die assembly 200, the first die holder 203 and the workpiece in the corresponding die are subjected to primary die punching, the impact assembly 300 is reset, then the transmission assembly 100 pushes the die assembly 200 to move upwards, the impact assembly 300 pushes the die assembly 200 again, and the second die holder 204 and the workpiece in the corresponding die are subjected to secondary die punching; the impact assembly 300 impacts the die assembly 200, the die walking platform 201 approaches to the direction of the die, the first die holder 203 is matched with a workpiece of the die to complete first punching, the impact assembly 300 resets, then the transmission assembly 100 pushes the die assembly 200 to move upwards and move to the position where the second die holder 204 is flush with the die, the impact assembly 300 impacts the die assembly 200 to move the die walking platform 201 to the direction of the die, the second die holder 204 is matched with the workpiece of the die to complete second punching, and the impact assembly 300 resets, so that manual adjustment of the die after first punching or the second die holder 204 and manual contact with the die are reduced, precision of second punching is improved, and safety and working efficiency are improved; and the noise generated when the transmission assembly 100 pushes the die assembly 200 can be reduced by the mutual transmission among the first rocker arm 103, the second rocker arm 105, the third rocker arm 107 and the fourth rocker arm 109.

The transmission assembly 100 comprises a conjugate cam 101, a first transmission shaft 102, a second transmission shaft 104, a third transmission shaft 108, two first rocker arms 103, a second rocker arm 105, a third rocker arm 107 and a fourth rocker arm 109 which are arranged in the middle of the conjugate cam 101, rotatably connected with the conjugate cam 101 and rotatably connected with the frame (not marked in the figure), and an upper walking platform 110 and a lower walking platform 110, wherein two ends of each first rocker arm 103 are respectively provided with an attached rotating shaft, one end of each first rocker arm 103 is rotatably connected with the conjugate cam 101, the other end of each first rocker arm 103 is rotatably connected with the corresponding second transmission shaft 104, two ends of each second rocker arm 105 are provided with the attached rotating shafts, one end of each second rocker arm 105 is rotatably connected with the corresponding second transmission shaft 104 through the attached rotating shafts, one end of each second rocker arm 105 is connected with a screw 106, one end of which is rotatably connected with the corresponding second rocker arm 105, through the, the screw rod 106 other end be connected with one end with the screw rod 106 rotates to be connected third rocking arm 107, the third rocking arm 107 other end is equipped with attached pivot just passes through attached pivot with third transmission shaft 108 rotates to be connected, fourth rocking arm 109 one end is equipped with attached pivot just passes through attached pivot with third transmission shaft 108 rotates to be connected, the fourth rocking arm 109 other end with walk a 110 lateral sliding connection from top to bottom, walk a 110 from top to bottom with the die walks a 201 joint fixed. The conjugate cam 101 drives the two first rocker arms 103 to move downwards, the two first rocker arms 103 drive the second rocker arm 105 to move downwards, the second rocker arm 105 drives one end of the third rocker arm 107 to move downwards, the third transmission shaft 108 is a amphibious shaft, so that in the process that one end of the third rocker arm 107 moves downwards, the fourth rocker arm 109 rotatably connected with the third transmission shaft 108 rotates upwards, the fourth rocker arm 109 slides to the edge of the upper walking board 110 and the lower walking board 110 through sliding connection, the upper walking board 110 and the lower walking board 110 drive the punching die walking board 201 fixed by clamping to move upwards, accurate positioning of the two punching die holders 204 and a die is achieved, and through mechanical operation, accuracy and production efficiency of screws are greatly improved.

The upper and lower walking board 110 is provided with a groove 1101, one end of the die walking board 201 close to the upper and lower walking board 110 is arranged in the groove 1101 and is fixedly connected with the upper and lower walking board 110 in a clamping manner, and the structural strength between the upper and lower walking board 110 and the die walking board 201 is greatly increased.

Walk from top to bottom the platform 110 be equipped with horizontal spout 1102 and be located in the horizontal spout 1102 with horizontal spout 1102 sliding connection's slider 1103, slider 1103 with fourth rocking arm 109 one end fixed connection, the in-process of fourth rocking arm 109 one end up-shifting, walk from top to bottom the platform 110 rebound on one side through slider 1103 slip to the right side and drive on one side to walk from top to bottom the platform 110 and drive the die and walk from top to bottom the platform 201 rebound, this structure has improved the flexibility of structure between fourth rocking arm and the upper and lower platform 110.

The lower pressing plate 1104 fixedly connected with the upper and lower walking platforms 110 is arranged at one end, far away from the die walking platform 201, of the upper and lower walking platforms 110, and in the process that the fourth rocker arm rotates to move downwards, the lower pressing plate 1104 is slightly heavy and can restore the die walking platform 201 to the initial position rapidly under the influence of gravity, so that the time for restoring the upper and lower walking platforms 110 to the initial position is shortened, and the production efficiency of screws is improved.

The upper and lower walking board 110 is further provided with a cushion block 1105, the upper and lower walking board 110 sequentially passes through the upper and lower walking board 110, the cushion block 1105, the lower pressing board 1104 and the lower pressing board 1104 through a fixing piece 1106, so that the fixing strength between the lower pressing board 1104 and the upper and lower walking board 110 is increased, the lower pressing board 1104 is not easy to fall off from the upper and lower walking board 110, and the fixing strength between the upper and lower walking board 110 and the cushion block 1105 is further increased.

The middle of the screw 106 is provided with an adjusting nut 1061 for adjusting the length of the screw 106, and the length of the screw 106 can be adjusted by the adjusting nut 1061 as required, so as to adapt to different occasions or different situations, thereby increasing the practicability of the transmission assembly 100.

The impact assembly 300 comprises a fourth transmission shaft 301 with one end rotatably connected with the pushing device, an impact connecting rod 302 with one end rotatably connected with the fourth transmission shaft 301, and an impact block 303 with one end fixedly connected with the other end of the impact connecting rod 302, wherein the other end of the impact block 303 is used for pushing the die walking platform 201. A limiting part 205 is arranged at one end of the die platform 201 away from the upper and lower platforms 110, and the impact block 303 is arranged on a limiting block 3031 corresponding to and matched with the limiting part 205. The fourth transmission shaft 301 drives the impact connection impact punching die walking platform 201 to move towards the die direction, and then primary punching and secondary punching are completed; and the distance that the punch die walking platform 201 moves downwards after punching for two times can be limited through the limiting part 205, if the distance that the punch die walking platform 201 moves downwards is too large, the problem that the positions of the first punch and the second punch of the next workpiece do not correspond is easily caused, and the accuracy of the first punch, the second punch and the die is further improved.

Compared with the prior art, the utility model provides a two punching screw heading machines on one mould transmission of upper and lower die works as after impact subassembly 300 promotes die subassembly 200, one punching die holder 203 with correspond the work piece in the mould and carry out the die once, impact subassembly 300 resets, then after transmission subassembly 100 promoted die subassembly 200 moved upwards, impact subassembly 300 promoted die subassembly 200 once more, two punching die holders 204 with correspond the work piece in the mould carry out the die twice; the impact assembly 300 impacts the die assembly 200, the die walking platform 201 approaches to the die, the first die holder 203 is matched with a workpiece of the die to complete first punching, the impact assembly 300 resets, the die assembly 200 is pushed by the transmission assembly 100 to move upwards and move to a position where the second die holder 204 is flush with the die, the die walking platform 201 is moved towards the die by the impact assembly 300 impact the die assembly 200, the second die holder 204 is matched with the workpiece of the die to complete second punching, manual adjustment of the first punched die or the second die holder 204 and manual contact with the die are reduced, accuracy of second punching is improved, and safety and working efficiency are improved; and the noise generated when the transmission assembly 100 pushes the die assembly 200 can be reduced by the mutual transmission among the first rocker arm 103, the second rocker arm 105, the third rocker arm 107 and the fourth rocker arm 109.

The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.

Claims

1. The utility model provides a transmission of upper and lower die of two towards screw heading machines of a mould which characterized in that: the transmission device of the upper and lower punching dies of the one-die two-die screw heading machine comprises a rack, a transmission assembly with one end rotatably connected with the rack, and a punching die assembly connected with the other end of the transmission assembly, wherein the transmission assembly is used for driving the punching die assembly to move up and down, and an impact assembly with one end used for pushing the punching die assembly and the other end connected with a pushing device; after the impact assembly pushes the die assembly, the first die holder and the workpiece in the corresponding die are subjected to primary die punching, the impact assembly resets, then the transmission assembly pushes the die assembly to move upwards, the impact assembly pushes the die assembly again, and the second die holder and the workpiece in the corresponding die are subjected to secondary die punching.

2. The driving apparatus for the upper and lower dies of a one-die two-punch screw heading machine according to claim 1, further comprising: the transmission assembly comprises a conjugate cam, a first transmission shaft, a second transmission shaft, a third transmission shaft, two first rocker arms, a second rocker arm, a third rocker arm, a fourth rocker arm, an upper walking board and a lower walking board, wherein the first transmission shaft, the second transmission shaft, the third transmission shaft, the two first rocker arms, the second rocker arm, the third rocker arm and the fourth rocker arm are arranged in the middle of the conjugate cam, the conjugate cam is rotatably connected with the conjugate cam, the upper walking board and the lower walking board are rotatably connected with the frame, each first rocker arm is respectively provided with an attached rotating shaft at two ends, one end of each first rocker arm is rotatably connected with the conjugate cam through the attached rotating shaft, the other end of each first rocker arm is rotatably connected with a screw rod, one end of each second rocker arm is rotatably connected with the screw rod, the other end of each screw rod is rotatably connected with the third rocker arm, the third rocking arm other end is equipped with attached pivot just passes through attached pivot with the third transmission shaft rotates to be connected, fourth rocking arm one end is equipped with attached pivot just passes through attached pivot with the third transmission shaft rotates to be connected, the fourth rocking arm other end with walk a horizontal sliding connection from top to bottom, walk from top to bottom the platform with the die walks a joint fixed.

3. The driving apparatus for the upper and lower dies of a one-die two-punch screw heading machine as claimed in claim 2, wherein: the upper walking platform and the lower walking platform are provided with grooves, and one end of the stamping die walking platform, which is close to the upper walking platform and the lower walking platform, is arranged in the grooves and is fixedly clamped with the upper walking platform and the lower walking platform.

4. The driving apparatus for the upper and lower dies of a one-die two-punch screw heading machine according to claim 3, wherein: the upper walking platform and the lower walking platform are provided with a transverse sliding groove and a sliding block which is positioned in the transverse sliding groove and is in sliding connection with the transverse sliding groove, and the sliding block is fixedly connected with one end of the fourth rocker arm.

5. The driving apparatus for the upper and lower dies of a one-die two-punch screw heading machine as claimed in claim 4, wherein: and one end of the upper and lower walking platforms, which is far away from the die walking platform, is provided with a lower pressing plate fixedly connected with the upper and lower walking platforms.

6. The driving apparatus for the upper and lower dies of a one-die two-punch screw heading machine as claimed in claim 5, wherein: the upper and lower walking boards sequentially penetrate through the upper and lower walking boards through fixing pieces, the cushion blocks and the lower pressing board are fixedly connected with the lower pressing board.

7. The driving apparatus for the upper and lower dies of a one-die two-punch screw heading machine according to claim 6, wherein: and the middle part of the screw rod is provided with an adjusting nut for adjusting the length of the screw rod.

8. The driving apparatus for the upper and lower dies of a one-die two-punch screw heading machine according to claim 7, wherein: the impact assembly comprises a fourth transmission shaft, an impact connecting rod and an impact block, wherein one end of the fourth transmission shaft is rotatably connected with the pushing device, one end of the impact connecting rod is rotatably connected with the fourth transmission shaft, one end of the impact block is fixedly connected with the other end of the impact connecting rod, and the other end of the impact block is used for pushing the die walking board.

9. The driving apparatus for the upper and lower dies of a one-die two-punch screw heading machine according to claim 8, wherein: the stamping die walking board is far away from one end of the upper walking board and the lower walking board is provided with a limiting part, and the impact block is arranged on a limiting block corresponding to and matched with the limiting part.