CN210876941U

CN210876941U - Punching machine stop gear

Info

Publication number: CN210876941U
Application number: CN201921091503.9U
Authority: CN
Inventors: 詹根祥; 方哲
Original assignee: Linan Ao Xing Electronics Co ltd
Current assignee: Linan Ao Xing Electronics Co ltd
Priority date: 2019-07-12
Filing date: 2019-07-12
Publication date: 2020-06-30
Anticipated expiration: 2029-07-12

Abstract

The utility model discloses a punching machine stop gear, including supporting shoe and elevating system, the supporting shoe includes upper portion supporting shoe and lower part supporting shoe, pass through between upper portion supporting shoe and the lower part supporting shoe elevating system connects, and elevating system includes slide bar and lead screw, terminal surface fixed connection under slide bar one end and the upper portion supporting shoe, the other end and lower part supporting shoe sliding connection rotate through the nut between lead screw upper end and the upper portion supporting shoe and be connected, rotate through the bearing between lower extreme and the lower part supporting shoe and be connected, terminal surface and punching machine mesa fixed connection under the lower part supporting shoe, the lower part supporting shoe is equipped with the rocker, rocker one end is connected with screw drive, and the other end stretches out outside the lower part supporting. The utility model discloses the stopper height-adjusting to the different processing design needs of adaptation.

Description

Punching machine stop gear

Technical Field

The utility model belongs to the technical field of the panel processing technique and specifically relates to a punching machine stop gear is related to.

Background

Due to the installation of the metal plate and other reasons, the metal plate needs to be processed, and a certain part of the metal plate is usually removed in a certain shape, so that the metal plate needs to be processed by a stamping device with good stamping effect and convenient operation. Present common stamping equipment stop gear often can't adjust its spacing height, when the different processing designs of adaptation, need change not unidimensional stop gear, causes the process loaded down with trivial details, influences machining efficiency. For example, a "press die positioning device" disclosed in chinese patent document, publication No. CN205183539U, includes an upper die base slidably disposed on a guide post, a lower die base disposed below the upper die base, a driving mechanism driving the upper die base to reciprocate up and down, a punch disposed on the upper die base and a punch hole of the lower die base to be away from or close to each other, and a positioning block disposed on a lower plate surface of the upper die base and/or an upper plate surface of the lower die base. The height of the limiting block in the stamping direction cannot be adjusted, so that the limiting block cannot be adapted to various processing design requirements.

Disclosure of Invention

The utility model relates to an overcome the unable height-adjusting of prior art stopper, the comparatively single problem of adaptation occasion provides a punching machine stop gear, can be through adjusting its height, makes the different processing design of its adaptation.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a punching machine stop gear, includes supporting shoe and elevating system, the supporting shoe includes upper portion supporting shoe and lower part supporting shoe, pass through between upper portion supporting shoe and the lower part supporting shoe elevating system connects, elevating system includes slide bar and lead screw, terminal surface fixed connection under slide bar one end and the upper portion supporting shoe, the other end and lower part supporting shoe sliding connection, rotate through the nut between lead screw upper end and the upper portion supporting shoe and be connected, rotate through the bearing between lower extreme and the lower part supporting shoe and be connected, terminal surface and punching machine lower bench face fixed connection under the lower part supporting shoe, the lower part supporting shoe is equipped with the rocker, rocker one end is connected with lead screw transmission, the other end. The limiting mechanism of the punching machine is used for limiting the punching depth of the punching machine, and the supporting block can support when the upper mechanism of the punching machine descends to a certain height, so that the punching depth is prevented from exceeding the preset value due to the further descending height. The distance between the upper supporting block and the lower supporting block is changed by the rotation of the screw rod of the lifter, so that the overall height of the supporting block is changed, and different punching requirements are met.

Preferably, the upper end face of the upper supporting block is provided with a buffer plate, and the buffer plate is connected with the upper supporting block through a cylinder. When punching machine upper portion mechanism contacts the back with the upper portion supporting shoe at the punching press in-process, the cylinder can cushion impact force to avoid impact force direct action to lead screw, cause the damage to the screw thread of lead screw.

Preferably, the upper supporting block is provided with a cavity structure for accommodating a screw rod, and an opening of the cavity structure is located at a corresponding position of the lower end face of the upper supporting block, which is close to the nut. The theory of operation of lead screw is nut on the upper portion supporting shoe and the thread engagement of lead screw surface, and the lead screw rotates, because the upper portion supporting shoe receives the restraint of slide bar in the direction of rotation to can only advance along the screw thread direction, at upper portion supporting shoe translation in-process lead screw upper end can with upper portion supporting shoe end face contact, and the stroke of restriction upper portion supporting shoe, the effect of cavity structure in this scheme holds the lead screw, in order to increase the stroke of supporting shoe.

Preferably, the rocker and the screw rod are in meshed connection through bevel gears. Bevel gear passes through shaft hole and rocker fixed connection, and along with the rotation of rocker drives bevel gear and rotates, and then drives the lead screw rotation through meshing between bevel gear and the lead screw surface thread tooth to the height of adjustment supporting shoe.

Preferably, the upper end surface of the buffer plate is provided with a rubber plate for damping. The rubber sheet is used for damping and reducing noise when the punch is in contact with the supporting block.

Preferably, the lower support block is connected with the lower table surface of the punching machine through a bolt. The bolted connection is easy to disassemble and assemble.

Preferably, a screw hole is formed in the end face of the side of the lower supporting block, and a positioning bolt for extruding the sliding rod to complete device fixing is arranged in the screw hole. By rotating the bolt, the bolt foot extrudes the slide rod, and the positions of the upper supporting block and the lower supporting block are fixed under the action of friction force.

Therefore, the utility model discloses following beneficial effect has: (1) the height of the limiting block can be adjusted to meet different processing design requirements; (2) the cylinder and the rubber plate can absorb part of impact force in the stamping process, and reduce the impact force and the emitted noise in the collision process; (3) the limiting block is easy to disassemble and assemble.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. the device comprises a lower supporting block 2, an upper supporting block 3, a buffer plate 4, a screw rod 5, a nut 6, a slide rod 7, a bevel gear 8, a rocker 9, a bearing 10, a chute 11, a rubber plate 12, an air cylinder 13, a bolt 14, a positioning bolt 15 and a lower table surface.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description.

Examples

In the embodiment shown in fig. 1, the lowest end of the limiting mechanism of the punching machine is a lower supporting block 1, the lower supporting block 1 is fixedly connected with a lower table surface 15 of the punching machine through a bolt 13, the upper end surface of the lower supporting block 1 is provided with an opening and two sliding grooves 10, the opening in the middle part is used for arranging a lead screw 4, the lower end of the lead screw 4 is connected with the lower supporting block 1 through a bearing 9 arranged in the opening, the upper end of the lead screw 4 is provided with an upper supporting block 2, the upper supporting block 2 is internally provided with a cavity, the opening of the cavity is positioned on the lower end surface of the upper, a nut 5 is fixed at the opening of the cavity, a screw rod 4 is meshed with the nut 5 and extends into the cavity, two slide bars 6 are fixed at corresponding positions of the lower end face of the upper supporting block 2, and the two slide bars 6 respectively extend into two sliding grooves 10 of the lower supporting block 1 so as to be slidably connected with the lower supporting block 1. The middle part of the lower supporting block 1 is provided with a rocker 8, one end of the rocker 8 is fixedly connected with a bevel gear 7 through a shaft hole, the bevel gear 7 is meshed with thread teeth on the screw rod 4, and the other end of the rocker 8 penetrates out of the lower supporting block 1 so as to facilitate the rotation of an operator. The upper end face of the upper support plate is fixed with a buffer plate 3 for laying a rubber plate 11 through a cylinder 12.

When the punching structure at the upper end of the punching machine descends to a height to complete the punching process, in order to avoid the punching depth of the punching machine exceeding the preset depth, before punching, the rocker 8 is rotated, the lead screw 4 is rotated through the transmission of the bevel gear 7, the upper supporting block 2 is moved upwards or downwards along the direction of the slide rod 6 through the meshing of the nut 5 and the lead screw and the constraint of the slide rod 6, the preset height is reached, the positioning bolt 14 is rotated, the pin of the positioning bolt 14 extrudes the slide rod 6, and the positions of the upper supporting block 2 and the lower supporting block 1 are fixed. When the punching depth of the punching machine reaches a critical value, the punching structure contacts the buffer plate 3, the impact force is reduced through the buffer action of the air cylinder 12, and finally the descending of the punching machine is stopped under the supporting force formed by the engagement of the thread teeth of the lead screw 4 and the nut 5, so that the punching depth is prevented from exceeding a preset value.

Claims

1. The limiting mechanism of the punching machine comprises a supporting block and a lifting mechanism and is characterized in that the supporting block comprises an upper supporting block and a lower supporting block, the upper supporting block is connected with the lower supporting block through the lifting mechanism, the lifting mechanism comprises a sliding rod and a lead screw, one end of the sliding rod is fixedly connected with the lower end face of the upper supporting block, the other end of the sliding rod is connected with the lower supporting block through a sliding groove in a sliding mode, the upper end of the lead screw is rotatably connected with the upper supporting block through a nut, the lower end of the lead screw is rotatably connected with the lower supporting block through a bearing, the lower end face of the lower supporting block is fixedly connected with the lower table face of the punching machine.

2. The press spacing mechanism of claim 1, wherein said upper support block has a bumper plate on an upper end surface thereof, said bumper plate being connected to said upper support block by a pneumatic cylinder.

3. The press spacing mechanism of claim 1, wherein said upper support block defines a cavity for receiving the lead screw, said cavity opening being located at a corresponding location on the lower end surface of the upper support block adjacent the nut.

4. The press spacing mechanism of claim 1, wherein said rocker arm is in meshing engagement with said lead screw via a bevel gear.

5. The press spacing mechanism of claim 2, wherein said cushioning plate has a rubber plate on its upper end for absorbing shock.

6. The press spacing mechanism of claim 1, wherein said lower support block is bolted to the lower table of the press.

7. A press limiting mechanism according to any one of claims 1 to 6 wherein the lower support block has screw holes in its side end face, said screw holes having set bolts for pressing the slide bars to complete the device attachment.