CN214866319U

CN214866319U - Bending die

Info

Publication number: CN214866319U
Application number: CN202023332239.9U
Authority: CN
Inventors: 李兵; 陈艳涛; 吴贵雄
Original assignee: Chengdu Matsukawa Metal Materials Co ltd
Current assignee: Chengdu Matsukawa Metal Materials Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-11-26
Anticipated expiration: 2030-12-31

Abstract

The utility model belongs to the field of molds, and discloses a bending mold, which comprises a bracket, a punch and a worktable. The punch is vertically connected at the bottom of the bracket, a first cavity is circumferentially opened inside the punch, and the inside of the first cavity is The first resistance wires are evenly distributed; the workbench is provided with arc grooves along its length direction; the interior of the workbench is provided with a second cavity along its horizontal direction, and the second set of resistance wires is evenly distributed in the second cavity; The first resistance wire and the second group heat the upper and lower surfaces of the plate respectively, soften the plate to be processed, reduce the damage to the lower table due to the excessive hardness of the plate to be processed and require multiple punches to bend and form, and improve the forming accuracy at the same time . At both ends of the arc-shaped groove along the length of the workbench, one end is provided with a push rod, and the other end is provided with a water tank. Slides are connected between the bottom surfaces for cooling and placing the processed sheets.

Description

Bending die

Technical Field

The invention relates to the field of dies, in particular to a bending die.

Background

The bending of the plate to be processed is a common processing technology in the processing of the plate to be processed, the plate to be processed is fixed on a fixing plate through an arc-shaped groove or a positioning pin by the existing bending die, and the plate to be processed is downward impacted by a punch to realize the bending of the plate to be processed. The plate to be processed has high hardness, is not easy to form, needs to be bent for many times, and has long consumed operation time. Because the drift frequently strikes the workstation, long-time work can cause drift and workstation to damage, and the maintenance cost is high.

Disclosure of Invention

The utility model provides a bending die to it is high to solve present because of treating processing panel hardness, and difficult shaping needs to bend many times, and the activity duration who consumes is long. The punch frequently impacts the workbench, so that the punch and the workbench are damaged due to long-time work, and the maintenance cost is high.

In order to solve the problem, this scheme provides a mould of bending, including the support, drift and workstation, the vertical connection of drift is in the support bottom, its characterized in that: a first cavity is formed in the punch in an annular mode, and first resistance wires are uniformly distributed in the first cavity; the workbench is provided with an arc-shaped groove along the length direction; a second cavity is formed in the workbench along the horizontal direction of the workbench, and a second group of resistance wires are uniformly distributed in the second cavity; the two ends of the arc-shaped groove along the length direction of the workbench are provided with push rods at one end, a water tank is arranged at the other end, the upper surface of the water tank is lower than the lower bottom surface of the arc-shaped groove, and a slide way is connected between the upper surface of the water tank and the lower bottom surface of the arc-shaped groove.

The basic principle of the scheme is as follows: in the processing process, the first resistance wire in the first cavity is electrified to generate heat, and when the heated punch contacts with the plate to be processed, the upper surface of the plate to be processed is heated; a second resistance wire arranged in the workbench is electrified to generate heat, and the heated workbench heats the lower surface of the plate to be processed; therefore, the upper surface and the lower surface of the plate to be processed are softened in a heating mode, the damage to the lower workbench caused by bending and forming due to frequent impact of the punch due to the fact that the plate to be processed is too hard is reduced, the processing time is shortened, and the forming precision is improved. Because the board after being heated and softened is easy to deform, in order to prevent the surface of the processed board from being damaged and to quickly enter the next procedure, the processed board is put into a water tank for cooling. In order to ensure that water in the water tank can not flow back to the arc-shaped groove, the arranged upper surface of the water tank is lower than the lower surface of the arc-shaped groove, and meanwhile, a slide way is arranged between the upper surface of the water tank and the lower bottom surface of the arc-shaped groove, so that processed plates slowly enter the water tank, and splash can be further prevented from splashing to the workbench to influence the processing of a next workpiece.

Furthermore, the first resistance wire and the second group of resistance wires are respectively connected with a first timing switch. For preventing that the resistance wire from generating heat for a long time and causing the production potential safety hazard, this scheme is through installing the time switch additional, and the automatic realization is saved the human cost to the circular telegram and the outage of resistance wire to prevent to forget the turn-off power supply because of artificial carelessness, make the potential safety hazard that the long-time heating of resistance wire leads to.

Furthermore, a second timing switch is fixedly arranged on the side wall of the support, and the punch is electrically connected with the second timing switch. The drift downward movement time is 5 seconds, and the upward movement time is 5 seconds, sets the second timing switch time to once every 5 seconds to the drift outage, descends as the drift, when waiting to process panel surface contact, keeps 5 seconds to separate again, can more fully heat and soften and wait to process the panel surface, improves the drift and waits to process the laminating degree of panel to improve the machining precision.

Further, a linear motor and a third timing switch are sequentially arranged on the upper surface of the workbench on one side of the push rod, which is far away from the water tank; the output shaft of the linear motor is connected with the push rod, and the power supply input port of the linear motor is electrically connected with the third timing switch. In operation, the output shaft of the linear motor drives the push rod to reciprocate along the horizontal linear direction. When the push rod moves towards the water tank from the plate, the processed plate is pushed into the slide way and then moves towards the opposite direction, and the push rod automatically resets. Meanwhile, the third timing switch can control the frequency of the action of the linear motor, for example, every time a plate is bent for 1 minute, the third timing switch is arranged, the linear motor is opened and closed once every minute, and the processed plate is automatically pushed into the water tank to be cooled and then reset, so that the labor cost is saved, and the working efficiency is improved.

Drawings

The invention is described in further detail below with reference to the following figures and detailed description:

fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a support 1, a punch 2, a workbench 3, a first cavity 4, a second cavity 5, a first resistance wire 6, a second resistance wire 7, an arc-shaped groove 8, a water tank 9, a slide way 10, a push rod 11, a first timing switch 14, a second timing switch 12, a third timing switch 15, a linear motor 16 and a plate 17 to be processed.

As shown in fig. 1: the mould of bending in this embodiment, including support 1, drift 2 and workstation 3, 2 vertical connections of drift are in 1 bottom of support, its characterized in that: a first cavity 4 is annularly formed in the punch 2, and first resistance wires 6 are uniformly distributed in the first cavity 4; the workbench 3 is provided with an arc-shaped groove 8 along the length direction thereof; a second cavity 5 is formed in the workbench 3 along the horizontal direction, and a second group of resistance wires are uniformly distributed in the second cavity 5; the two ends of the arc-shaped groove 8 along the length direction of the workbench 3 are provided with a push rod 11, the other end is provided with a water tank 9, the upper surface of the water tank 9 is lower than the lower bottom surface of the arc-shaped groove 8, and a slide way 10 is connected between the upper surface of the water tank 9 and the lower bottom surface of the arc-shaped groove 8.

The basic principle of the scheme is as follows: in the processing process, the first resistance wire 6 in the first cavity 4 is electrified to generate heat, and when the heated punch 2 is contacted with the plate 17 to be processed, the upper surface of the plate 17 to be processed is heated; the second resistance wire 7 arranged in the workbench 3 is electrified to generate heat, and the heated workbench 3 heats the lower surface of the plate 17 to be processed; therefore, the upper surface and the lower surface of the plate 17 to be processed are softened in a heating mode, the damage to the lower workbench 3 caused by bending and forming due to frequent impact of the punch 2 because the plate 17 to be processed is too hard is reduced, the processing time is shortened, and the forming precision is improved. Because the board softened by heating is easy to deform, in order to prevent the processed board surface from being damaged and to quickly enter the next procedure, the processed board is put into the water tank 9 for cooling. In order to ensure that water in the water tank 9 does not flow back to the arc-shaped groove 8, the upper surface of the water tank 9 is lower than the lower surface of the arc-shaped groove 8, and meanwhile, a slide way 10 is arranged between the upper surface of the water tank 9 and the lower bottom surface of the arc-shaped groove 8, so that a processed plate slowly enters the water tank 9, and water splash can be further prevented from splashing to the workbench 3 to influence the processing of the next workpiece.

The first resistance wire 6 and the second group of resistance wires are respectively connected with a first timing switch 14. For preventing that the resistance wire from generating heat for a long time and causing the production potential safety hazard, this scheme is through installing the time switch additional, and the automatic realization is saved the human cost to the circular telegram and the outage of resistance wire to prevent to forget the turn-off power supply because of artificial carelessness, make the potential safety hazard that the long-time heating of resistance wire leads to. And a second timing switch 12 is fixedly arranged on the side wall of the bracket 1, and the punch 2 is electrically connected with the second timing switch 12. The punch 2 moves downwards for 5 seconds, moves upwards for 5 seconds, the second timing switch 12 is set to be powered on and powered off every 5 seconds, when the punch 2 descends and contacts the surface of the plate 17 to be processed, the punch 2 is kept for 5 seconds to be separated again, the surface of the plate 17 to be processed can be heated more sufficiently to soften the surface of the plate 17 to be processed, the fitting degree of the punch 2 and the plate 17 to be processed is improved, and therefore the processing precision is improved. A linear motor 16 and a third timing switch 15 are sequentially arranged on the upper surface of the workbench 3 and on one side of the push rod 11, which is far away from the water tank 9; the output shaft of the linear motor 16 is connected with the push rod 11, and the power input port thereof is electrically connected with the third timing switch 15. In operation, the output shaft of the linear motor 16 drives the push rod 11 to reciprocate along the horizontal linear direction. When the push rod 11 moves from the plate to the water tank 9, the processed plate is pushed into the slide way 10, and then moves to the opposite direction, and the plate is automatically reset. At the same time, the third timing switch 15 can control the frequency of the operation of the linear motor 16. For example, adopt moralisi in this embodiment, the time switch of model KG316T, because every bending a panel needs 1 minute, then set up the motion that the linear electric motor 16 was opened and close to third time switch 15 minute, reset after pushing the basin cooling with the panel that processes automatically, the cost of using manpower sparingly improves work efficiency.

The above descriptions are merely examples of the present invention, and common general knowledge in the field of known specific structures and characteristics is not described herein, and those skilled in the art will know all the common technical knowledge in the field of the invention before the application date or priority date, can know all the prior art in this field, and have the ability to apply the conventional experimental means before this date. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. A bending die, comprising a bracket, a punch and a workbench, the punch is vertically connected to the bottom of the bracket, and it is characterized in that: the inner part of the punch is circumferentially provided with a first cavity, and the inside of the first cavity is uniform. A first resistance wire is distributed; the worktable is provided with an arc-shaped groove along its length direction; inside the worktable, a second cavity is opened along the horizontal direction of the worktable, and a second group of resistors are evenly distributed in the second cavity The two ends of the arc-shaped groove along the length direction of the workbench, one end is provided with a push rod, the other end is provided with a water tank, the upper surface of the water tank is lower than the bottom surface of the arc-shaped groove, and the upper surface of the A slideway is connected between the bottom surface of the groove.

2 . The bending die according to claim 1 , wherein a first timing switch is provided on the side of the worktable, and the first resistance wire and the second group of resistance wires are respectively connected to the first timing switch. 3 .

3 . The bending die according to claim 1 , wherein a second timing switch is fixed on the side wall of the bracket, and the punch is electrically connected to the second timing switch. 4 .

4. The bending die according to claim 1, characterized in that: the upper surface of the worktable, on the side of the push rod away from the water tank, is provided with a linear motor and a third timing switch in turn; the output shaft of the linear motor is connected to the push rod. rod, and its power input port is electrically connected to the third timing switch.