Multi-station forming device

Abstract

This invention discloses a multi-station forming device, comprising a multi-track vibrating feeding plate and a stamping machine, including an annular pressure plate, an inner support ring, an annular guide rail, a slider, an electric hinge, a lower die, a bolt head forming blind hole, a bolt shank limiting through hole, a discharge track, an upper die, a bolt head forming pressure block, a pusher through hole, a pusher cylinder, a lifting plate, and a pusher rod. This invention has a simple structure and reasonable design, enabling several dies to cyclically cooperate with the feeding, processing, and unloading mechanisms of a cold heading machine, thereby shortening the operating interval of the feeding, processing, and unloading mechanisms and improving bolt production efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of multi-station forming apparatus, and particularly to the technical field of multi-station forming apparatus. Background Technology

[0002] Cold heading, based on the theory of metal plastic deformation, applies pressure to a metal billet at room temperature, causing it to plastically deform within a mold cavity and form it into a specified shape and size. Cold heading bolt and nut forming machines are available in various models and series, offering reliable performance, high efficiency, and stable product quality. However, existing cold heading machines only have one set of molds. During operation, this mold first needs to work with the feeding mechanism to feed the material, then with the processing mechanism for cold heading, and finally with the unloading mechanism for unloading. This means that while one of the feeding, processing, or unloading mechanisms is operating, the other two mechanisms are temporarily restricted, hindering the full utilization of each mechanism and impeding efficient bolt production. Summary of the Invention

[0003] The purpose of this invention is to solve the problems in the prior art and to propose a multi-station forming device that enables several molds to work in a cyclical manner with the feeding mechanism, processing mechanism and unloading mechanism of the cold heading machine, thereby shortening the operating interval of the feeding mechanism, processing mechanism and unloading mechanism of the cold heading machine and improving the production efficiency of bolts.

[0004] To achieve the above objectives, this invention proposes a multi-station forming device, comprising a multi-track vibrating feeding plate and a stamping machine, including an annular pressure plate, an inner support ring, an annular guide rail, sliders, electric hinges, a lower die, blind holes for forming bolt heads, through holes for limiting bolt shanks, a discharge track, an upper die, a bolt head forming block, a pusher through hole, a pusher cylinder, a lifting plate, and a pusher rod. The annular pressure plate has a coaxial inner support ring on its upper surface near the inner ring. The upper end of the inner support ring has a coaxial annular guide rail. Several sliders are located on the upper end of the annular guide rail, each slider having an electric hinge at its top. Several lower dies are located on the outer side of the annular guide rail, pressing against the annular pressure plate. Each lower die corresponds to one electric hinge, with the opposite ends of the lower die and electric hinges connected. Several blind holes for forming bolt heads are located on the upper surface of the lower die, with through holes for limiting bolt shanks at the bottom of each blind hole. The upper end of the annular pressure plate rotates clockwise... The structure is divided into a feeding area, a processing area, and a discharging area, either clockwise or counterclockwise. Each of these areas has the same number of lower dies. The outer side of the annular pressure plate in the feeding area has a multi-track vibrating feeding disc. The discharging end of the multi-track vibrating feeding disc has several discharging tracks that correspond one-to-one with the bolt rod limiting through holes in the feeding area. The outer side of the annular pressure plate in the processing area has a stamping machine. The stamping end of the stamping machine has an upper die. The lower end face of the upper die has several bolt head forming blocks that correspond one-to-one with the bolt head forming blind holes in the processing area. The upper end face of the annular pressure plate in the discharging area has several pushing through holes that correspond one-to-one with the bolt rod limiting through holes in the discharging area. Below the pushing through holes is a pushing cylinder. The upper end of the pushing cylinder has a lifting plate. The upper end face of the lifting plate has several pushing rods that correspond one-to-one with the pushing through holes. The pushing rods extend into the pushing through holes.

[0005] Preferably, the lower end face of the annular pressure plate is provided with a bracket, and the inner side of the annular pressure plate is provided with a finished product collection frame adapted to the lower mold.

[0006] Preferably, the bolt head forming blocks on the upper mold are evenly distributed in a straight line.

[0007] Preferably, the lower mold is connected to the electric hinge via a connecting rod. The end of the lower mold away from the electric hinge is provided with a limiting blind hole. The side of the lower mold away from the electric hinge is provided with an outer support ring fixed to the upper end of the annular pressure plate. The outer support ring is coaxial with the annular pressure plate. The upper end of the outer support ring is provided with a number of limiting cylinders that correspond one-to-one with the limiting blind holes. The limiting cylinders are fixed to the outer end face of the outer support ring. After the telescopic shaft of the limiting cylinder penetrates the outer support ring, the telescopic shaft of the limiting cylinder extends into the limiting blind hole.

[0008] Preferably, the slider is provided with an infrared receiving device, and the inner wall of the outer support ring is provided with a number of infrared emitting devices corresponding one-to-one with the infrared receiving device. The number of infrared receiving devices, the number of infrared emitting devices, and the number of limiting cylinders are all evenly distributed in a circular shape with the axis of the annular guide rail as the center.

[0009] Preferably, several sliders, several electric hinges, and several lower molds are all evenly distributed in a circular shape with the axis of the annular guide rail as the center.

[0010] The beneficial effects of this invention are as follows: This invention has a simple structure and reasonable design, enabling several molds to cyclically cooperate with the feeding, processing, and unloading mechanisms of a cold heading machine. This shortens the operating interval of the feeding, processing, and unloading mechanisms, improving bolt production efficiency. By setting up infrared receiving and emitting devices, the position of the lower mold can be positioned, facilitating precise cooperation between the lower mold and other components. By setting up push-through holes, push-cylinders, lifting plates, and push rods, the bolts can be pushed into the blind holes at the bolt head and the limiting through holes at the bolt shank during discharge, preventing the bolts from getting stuck and facilitating subsequent bolt discharge under their own weight. By setting up limiting cylinders and limiting blind holes, the lower mold can be locked when it stops and mates with the corresponding components in the feeding, processing, and discharge areas, ensuring stable cooperation between the lower mold and other components.

[0011] The features and advantages of the present invention will be described in detail through embodiments and in conjunction with the accompanying drawings. Attached Figure Description

[0012] Figure 1 This is a schematic front cross-sectional view of the multi-station forming device of the present invention;

[0013] Figure 2 This is a top view of the multi-station forming device of the present invention. Detailed Implementation

[0014] See Figure 1 , Figure 2The multi-station forming device of the present invention includes a multi-track vibrating feeding plate 5 and a stamping machine 6, comprising an annular pressure plate 1, an inner support ring 11, an annular guide rail 2, a slider 21, an electric hinge 3, a lower mold 4, a bolt head forming blind hole 41, a bolt shank limiting through hole 42, a discharge track 51, an upper mold 61, a bolt head forming pressure block 610, a pusher through hole 7, a pusher cylinder 71, a lifting plate 72, and a pusher rod 73. The annular pressure plate 1 has a coaxial inner support ring 11 near the upper end face of the inner ring. 1. A coaxial annular guide rail 2 is provided at the upper end. Several sliders 21 are provided at the upper end of the annular guide rail 2. Each slider 21 has an electric hinge 3 at its top. Several lower molds 4 are provided on the outer side of the annular guide rail 2, pressing against the annular pressure plate 1. The several lower molds 4 correspond one-to-one with the several electric hinges 3. The opposite ends of the lower molds 4 and electric hinges 3 are connected. Several bolt head forming blind holes 41 are provided on the upper surface of the lower molds 4. Bolt rod limiting through holes 42 are provided at the bottom of the bolt head forming blind holes 41. The upper end of the annular pressure plate 1 is clockwise The feed area is divided into a feeding area, a processing area, and a discharging area, either clockwise or counterclockwise. Each feeding area, processing area, and discharging area has the same number of lower dies 4. A multi-track vibrating feeding plate 5 is located on the outer side of the annular pressure plate 1 in the feeding area. The discharging end of the multi-track vibrating feeding plate 5 has several discharging tracks 51 that correspond one-to-one with the bolt rod limiting through holes 42 in the feeding area. A stamping machine 6 is located on the outer side of the annular pressure plate 1 in the processing area. An upper die 61 is located at the stamping end of the stamping machine 6. The lower end face of the upper die 61 is... There are several bolt head forming pressure blocks 610 that correspond one-to-one with the bolt head forming blind holes 41 in the processing area. The upper end face of the annular bearing plate 1 in the discharge area is provided with several push-through holes 7. The push-through holes 7 correspond one-to-one with the bolt rod limiting through holes 42 in the discharge area. The push-through holes 7 are provided with a push-push cylinder 71 below the push-push cylinder 71. The upper end of the push-push cylinder 71 is provided with a lifting plate 72. The upper end face of the lifting plate 72 is provided with several push-push rods 73 that correspond one-to-one with the push-push holes 7. The push-push rods 73 extend into the push-push holes 7.

[0015] The annular pressure plate 1 has a support 13 on its lower end face and a finished product collection frame 8 adapted to the lower mold 4 on its inner side.

[0016] Among them, the bolt head forming blocks 610 on the upper mold 61 are evenly distributed in a straight line.

[0017] The lower mold 4 is connected to the electric hinge 3 via a connecting rod. The lower mold 4 is provided with a limiting blind hole 402 at one end away from the electric hinge 3. The lower mold 4 is provided with an outer support ring 12 fixed to the upper end of the annular pressure plate 1 on the side away from the electric hinge 3. The outer support ring 12 is coaxial with the annular pressure plate 1. The upper end of the outer support ring 12 is provided with a number of limiting cylinders 120 corresponding to the limiting blind holes 402. The limiting cylinders 120 are fixed to the outer end face of the outer support ring 12. After the telescopic shaft of the limiting cylinder 120 penetrates the ring body of the outer support ring 12, the telescopic shaft of the limiting cylinder 120 extends into the limiting blind hole 402.

[0018] The slider 21 is equipped with an infrared receiving device 101, and the inner wall of the outer support ring 12 is equipped with a number of infrared emitting devices 102 corresponding to the infrared receiving device 101. The number of infrared receiving devices 101, infrared emitting devices 102, and limiting cylinders 120 are all evenly distributed in a circular shape with the axis of the annular guide rail 2 as the center.

[0019] Among them, several sliders 21, several electric hinges 3, and several lower molds 4 are all evenly distributed in a circular shape with the axis of the annular guide rail 2 as the center.

[0020] Working process of this invention:

[0021] In the operation of the multi-station forming device of the present invention, firstly, the multi-track vibrating feeding plate 5 feeds the bolt rod limiting through hole 42 in the feeding area, and the bolt is inserted into the bolt rod limiting through hole 42. Then, the annular guide rail 2 transports several lower dies 4 that have been fed to the processing area. Then, the stamping machine 6 uses the upper die 61 in conjunction with the lower die 4 to cold forge the bolt head. Then, the annular guide rail 2 transports several lower dies 4 after cold forging to the discharge area. Then, the pusher cylinder 71 pushes the lifting plate 72 to rise, so that the pusher rod 73 enters the bolt rod limiting through hole 42 and pushes the bolt upward appropriately before resetting, preventing the bolt from getting stuck in the bolt head forming blind hole 41. The bolt rod is limited to the through hole 42. Then, the electric hinge 3 drives several lower molds 4 to rotate towards the collection frame 8 inside the annular bearing plate 1. The bolt falls into the collection frame 8 under the action of gravity. Then, several lower molds 4 in the discharge area are reset. The annular guide rail 2 transports several lower molds 4 after discharge to the loading area, realizing that several molds are cyclically and sequentially cooperate with the loading mechanism, processing mechanism and unloading mechanism of the cold heading machine. Finally, when the lower mold 4 is moving, the limiting cylinder 120 should shorten away from the limiting blind hole 402. When the lower mold 4 stops and cooperates with the corresponding parts of the loading area, processing area and discharge area, the limiting cylinder 120 should extend and insert into the limiting blind hole 402.

[0022] This invention features a simple structure and reasonable design, enabling several molds to cyclically cooperate with the feeding, processing, and unloading mechanisms of a cold heading machine. This shortens the operating interval of the feeding, processing, and unloading mechanisms, improving bolt production efficiency. By setting up an infrared receiver 101 and an infrared transmitter 102, the position of the lower mold 4 can be positioned, facilitating accurate coordination between the lower mold 4 and other components. By setting up a pusher through hole 7, a pusher cylinder 71, a lifting plate 72, and a pusher rod 73, the bolts can be pushed into the bolt head forming blind hole 41 and the bolt shank limiting through hole 42 during discharge, preventing the bolts from getting stuck in these areas and facilitating subsequent bolt discharge under their own weight. By setting up a limiting cylinder 120 and a limiting blind hole 402, the lower mold 4 can be locked when it stops and mates with the corresponding components in the feeding, processing, and discharge areas, ensuring stable coordination between the lower mold 4 and other components.

[0023] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the scope of protection of the present invention.

Claims

1. Multi-station forming device, comprising a multi-track vibrating loading tray (5), a punch (6), characterized in that: Including annular pressure plate (1), inner support ring (11), annular guide rail (2), slider (21), electric hinge (3), lower mold (4), bolt head forming blind hole (41), bolt rod body limiting through hole (42), discharge track (51), upper mold (61), bolt head forming pressing block (610), push material through hole (7), push material cylinder (71), lifting plate (72), push material rod (73), the annular pressure plate (1) is close to the upper end surface of inner ring and is equipped with the coaxial inner support ring (11), the upper end of inner support ring (11) is equipped with the coaxial annular guide rail (2), the upper end of annular guide rail (2) is equipped with a plurality of sliders (21), the top of each slider (21) is equipped with electric hinge (3), the outer side of annular guide rail (2) is equipped with a plurality of lower molds (4) pressed on annular pressure plate (1), a plurality of lower molds (4) and a plurality of electric hinges (3) are one-to-one correspondence, the opposite end of lower mold (4), electric hinge (3) is connected adaptively, the upper end surface of lower mold (4) is equipped with a plurality of bolt head forming blind holes (41), the bottom of bolt head forming blind hole (41) is equipped with bolt rod body limiting through hole (42), the upper end of annular pressure plate (1) is divided into feeding area, processing area, discharge area in clockwise direction or counterclockwise direction, the same number of a plurality of lower molds (4) are arranged in feeding area, processing area and discharge area, the outer side of annular pressure plate (1) in feeding area is equipped with multi-track vibration feeding disc (5), the discharge end of multi-track vibration feeding disc (5) is equipped with a plurality of discharge tracks (51) corresponding to bolt rod body limiting through hole (42) in feeding area, the outer side of annular pressure plate (1) in processing area is equipped with punch (6), the punch end of punch (6) is equipped with upper mold (61), the lower end surface of upper mold (61) is equipped with a plurality of bolt head forming pressing blocks (610) corresponding to bolt head forming blind hole (41) in processing area, the upper end surface of annular pressure plate (1) in discharge area is equipped with a plurality of push material through holes (7), a plurality of push material through holes (7) correspond to bolt rod body limiting through hole (42) in discharge area, a plurality of push material through holes (7) are below push material cylinder (71), the upper end of push material cylinder (71) is equipped with lifting plate (72), the upper end surface of lifting plate (72) is equipped with a plurality of push material rods (73) corresponding to a plurality of push material through holes (7), push material rod (73) extends into push material through hole (7).

2. The multi-station forming apparatus of claim 1, wherein: The lower end surface of the annular pressure plate (1) is equipped with a support (13), and the inner side of the annular pressure plate (1) is equipped with a finished product collecting frame (8) corresponding to the lower mold (4).

3. The multi-station forming apparatus of claim 1, wherein: The plurality of bolt head forming pressing blocks (610) on the upper mold (61) are uniformly distributed in a straight line.

4. The multi-station forming apparatus of claim 1, wherein: The lower mold (4) is connected with the electric hinge (3) through a connecting rod, one end of the lower mold (4) away from the electric hinge (3) is provided with a limiting blind hole (402), one side of the lower mold (4) away from the electric hinge (3) is provided with an outer support ring (12) fixed on the upper end of the annular pressure plate (1), the outer support ring (12) is coaxial with the annular pressure plate (1), the upper end of the outer support ring (12) is provided with a plurality of limiting air cylinders (120) corresponding to the limiting blind hole (402), the limiting air cylinders (120) are fixed on the outer end face of the outer support ring (12), the telescopic shaft of the limiting air cylinder (120) penetrates the ring body of the outer support ring (12), and then the telescopic shaft of the limiting air cylinder (120) extends into the limiting blind hole (402).

5. The multi-station forming apparatus of claim 4, wherein: The sliding block (21) is provided with an infrared receiving device (101), the inner wall of the outer support ring (12) is provided with a plurality of infrared emitting devices (102) corresponding to the infrared receiving device (101), the plurality of infrared receiving devices (101), the plurality of infrared emitting devices (102) and the plurality of limiting air cylinders (120) are uniformly distributed in a circumferential shape with the axis of the annular guide rail (2) as the center.

6. The multi-station forming apparatus of claim 1, wherein: The plurality of sliding blocks (21), the plurality of electric hinges (3) and the plurality of lower molds (4) are uniformly distributed in a circumferential shape with the axis of the annular guide rail (2) as the center.

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