CN112677546A

CN112677546A - Brake of press machine

Info

Publication number: CN112677546A
Application number: CN202011444067.6A
Authority: CN
Inventors: 张忐忑
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2021-04-20

Abstract

The invention relates to the technical field of stamping equipment and discloses a brake of a press machine, which comprises a machine body, wherein a crankshaft is movably sleeved in the middle of the right end of the machine body, an air joint is fixedly sleeved in the middle of the right end of the machine body, a brake sleeve is fixedly sleeved on the outer surface of the crankshaft and positioned in the machine body, and a brake disc is fixedly sleeved on the right side of the outer surface of the brake sleeve. This stopper of press, fulcrum effect to the lever through the pillar, and lever both ends length is different, the lever that is close to piston one side is shorter than the one side that is close to the driving disk, make the air channel promote the piston to move to give up when braking to the air cavity gas injection, the distance that the piston moved can drive the distance that the driving disk contracts is bigger, promptly under the same atmospheric pressure, the distance that the driving disk contracts is longer, promptly the time of driving disk and driven friction disk from braking to separation is shorter, reduce the friction heat generation when driving disk and driven friction disk give up the braking, and then guarantee the life of driven friction disk and driving disk.

Description

Brake of press machine

Technical Field

The invention relates to the technical field of stamping equipment, in particular to a brake of a press machine.

Background

The punching machine uses a crank sliding block as a working mechanism, a motor drives a flywheel through a triangle belt, the crank sliding block mechanism is driven through a gear pair and a clutch, the sliding block and a male die are enabled to go down linearly, the sliding block goes up in a return stroke after forging and pressing work is completed, the clutch is automatically disengaged, meanwhile, a brake on a crank shaft is switched on, and the sliding block is enabled to stop near an upper stop point.

When the brake is braked, the rotary joint exhausts air, the brake disc and the driving disc press the friction block under the action of the spring, the friction block and the rotating shaft are forced to stop rotating, the brake cylinder admits air, and the brake piston drives the driving disc to move leftwards and compress the brake spring, so that the brake is disengaged.

In the use process of the brake, when air enters a cylinder to separate an active friction disc from a brake disc, air pressure increase in the cylinder is an accumulated process, so that a process of generating heat by friction exists in the process of separating the active friction disc from the brake disc, the brake disc is overheated, and the service life of the brake disc is influenced.

Disclosure of Invention

The invention provides a brake of a press machine, which has the advantages of faster separation of a driven friction disc and a driving disc and reduction of friction heat generation time, and solves the problems of longer friction time and larger heat generation of the driving disc and the driven friction disc.

The invention provides the following technical scheme: a brake of a press machine comprises a press body, wherein a crankshaft is movably sleeved in the middle of the right end of the press body, an air connector is fixedly sleeved in the middle of the right end of the press body, a brake sleeve is fixedly sleeved on the outer surface of the crankshaft and positioned in the press body, a brake disc is fixedly sleeved on the right side of the outer surface of the brake sleeve, a friction block is movably sleeved on one side of an inner cavity of the press body and positioned in the friction block, a driven friction disc is fixedly sleeved on one side of the outer surface of the brake sleeve and positioned in the friction block, a support plate is fixedly sleeved on the outer surface of the air connector and positioned in the inner cavity of the press body, a telescopic column is fixedly installed on the right side of the support plate, a spring is movably sleeved on the outer surface of the telescopic column, a driving disc is fixedly installed at one end of the telescopic column, a piston is, the middle part of the support plate is annularly provided with a movable groove, the middle part of the movable groove is fixedly provided with a support column, the outer surface of the support column is movably sleeved with a lever, the outer surface of the driving disc is provided with a movable groove II, and the outer surface of the piston is provided with a movable groove I.

Preferably, the first movable groove and the second movable groove extend in a direction perpendicular to the axis.

Preferably, the movable grooves are uniformly provided with four supporting plates, each movable groove is fixedly provided with a support, two ends of each support are respectively movably sleeved with a lever, and the levers sleeved on the same support are supported in an X shape.

Preferably, after the lever is sleeved with the pillar, the lever close to one side of the piston is shorter than the lever close to one side of the driving disk.

The invention has the following beneficial effects:

this stopper of press, fulcrum effect to the lever through the pillar, and lever both ends length is different, the lever that is close to piston one side is shorter than the one side that is close to the driving disk, make the air channel promote the piston to move to give up when braking to the air cavity gas injection, the distance that the piston moved can drive the distance that the driving disk contracts is bigger, promptly under the same atmospheric pressure, the distance that the driving disk contracts is longer, promptly the time of driving disk and driven friction disk from braking to separation is shorter, reduce the friction heat generation when driving disk and driven friction disk give up the braking, and then guarantee the life of driven friction disk and driving disk.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is a left side view of the support plate of the present invention;

FIG. 3 is a left side view of the active plate of the present invention;

fig. 4 is a schematic diagram of the piston in right view.

In the figure: 1. a body; 2. a crankshaft; 3. an air connector; 4. a brake sleeve; 5. a brake disc; 6. a friction block; 7. a driven friction disk; 8. a support plate; 9. a telescopic column; 10. a spring; 11. a driving disk; 12. a piston; 13. an air cavity; 14. a vent channel; 15. a movable groove; 16. a pillar; 17. a lever; 18. a first movable groove; 19. and a second movable groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a brake of a press machine comprises a body 1, a crankshaft 2 is movably sleeved in the middle of the right end of the body 1, an air connector 3 is fixedly sleeved in the middle of the right end of the body 1, a brake sleeve 4 is fixedly sleeved in the outer surface of the crankshaft 2 and positioned in the body 1, a brake disc 5 is fixedly sleeved on the right side of the outer surface of the brake sleeve 4, a friction block 6 is movably sleeved on one side of the brake disc 5 in the inner cavity of the body 1, a driven friction disc 7 is fixedly sleeved on one side of the friction block 6 in the outer surface of the brake sleeve 4, a support plate 8 is fixedly sleeved in the outer surface of the air connector 3 and positioned in the inner cavity of the body 1, a telescopic column 9 is fixedly installed on the right side of the support plate 8, a spring 10 is movably sleeved on the outer surface of the telescopic column 9, a driving disc 11 is fixedly installed at one, the inner surface of the device body 1 is provided with a vent groove 14 communicated with the air joint 3, the middle part of the support plate 8 is annularly provided with a movable groove 15, the middle part of the movable groove 15 is fixedly provided with a support column 16, the outer surface of the support column 16 is movably sleeved with a lever 17, the outer surface of the driving disc 11 is provided with a movable groove II 19, and the outer surface of the piston 12 is provided with a movable groove I18.

The first movable groove 18 and the second movable groove 19 are extended in the vertical direction of the axis, and the two ends of the lever 17 can drive the driving disc 11 to move without being clamped in the rotating process of the lever 17 through the extension of the first movable groove 18 and the second movable groove 19, so that the normal operation of braking is ensured.

Wherein, movable slot 15 has evenly seted up four on extension board 8, every movable slot 15 all fixed mounting has pillar 16, the activity cover is equipped with lever 17 respectively at the both ends of every pillar 16, the lever 17 of suit is "X" form to be supported on same pillar 16, through installing lever 17 that "X" form distributes in pairs, make piston 12 and drive plate 11 regard as the main power removal in-process separately, when the rotatory process of promotion lever 17, the application of force to the lever 17 other end is more even, make drive plate 11 and piston 12 remove steadily, can guarantee that drive plate 11 and driven friction disk 7 braking and separation are steady.

After the lever 17 is sleeved with the strut 16, one side of the lever 17 close to one side of the piston 12 is shorter than one side close to the driving disc 11, the strut 16 acts on a fulcrum of the lever 17, and the lengths of the two ends of the lever 17 are different, so that when the vent groove 14 injects air into the air cavity 13 to push the piston 12 to move to give up braking, the moving distance of the piston 12 can drive the driving disc 11 to retract for a larger distance, namely, under the same air pressure, the retracting distance of the driving disc 11 is longer, namely, the time from braking to separation of the driving disc 11 and the driven friction disc 7 is shorter, the friction heat generation amount when the driving disc 11 and the driven friction disc 7 give up braking is reduced, and the service lives of the driven friction disc 7 and the driving disc.

The working principle of the press brake of the invention is as follows:

when the brake is not performed, air injected into the air joint 3 enters the air cavity 13 through the vent grooves 14, the piston 12 moves after pressurization, the lever 17 is driven to rotate around the support column 16, the other end of the lever 17 drives the driving disc 11 to move leftwards, the spring 10 is compressed, the driving disc 11 is separated from the driven friction disc 7 at the moment, the crankshaft 2 drives the brake disc 5 and the driven friction disc 7 on the brake sleeve 4 to rotate, when the brake is required, the air joint 3 is deflated, air pressure in the air cavity 13 is released instantly, and under the elastic force action of the spring 10, the driving disc 11 moves rightwards to directly contact with the driven friction disc 7 to extrude the friction block 6 to perform friction brake.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A brake for presses, comprising a body (1), characterized in that: the middle part of the right end of the device body (1) is movably sleeved with a crankshaft (2), the middle part of the right end of the device body (1) is fixedly sleeved with an air connector (3), the outer surface of the crankshaft (2) is fixedly sleeved with a brake sleeve (4) in the device body (1), the right side of the outer surface of the brake sleeve (4) is fixedly sleeved with a brake disc (5), one side of the inner cavity of the device body (1) which is positioned on the brake disc (5) is movably sleeved with a friction block (6), one side of the outer surface of the brake sleeve (4) which is positioned on the friction block (6) is fixedly sleeved with a driven friction disc (7), the outer surface of the air connector (3) is fixedly sleeved with a support plate (8) in the inner cavity of the device body (1), the right side of the support plate (8) is fixedly provided with a telescopic column (, the one end fixed mounting of flexible post (9) has drive plate (11), the left end movable sleeve of extension board (8) is equipped with piston (12), the left side of piston (12) and the ware body (1) form air cavity (13), air channel (14) with air connector (3) intercommunication are seted up to the internal surface of the ware body (1), movable groove (15) have been seted up to the middle part of extension board (8) cyclic annularly, the middle part fixed mounting in movable groove (15) has pillar (16), the surface movable sleeve of pillar (16) is equipped with lever (17), movable groove two (19) have been seted up to the surface of drive plate (11), movable groove one (18) have been seted up to the surface of piston (12).

2. The brake for a press machine of claim 1, wherein: the first movable groove (18) and the second movable groove (19) are extended in the direction vertical to the axis.

3. The brake for a press machine of claim 1, wherein: the movable grooves (15) are uniformly formed in the support plate (8) in four numbers, each movable groove (15) is fixedly provided with a support column (16), two ends of each support column (16) are respectively movably sleeved with a lever (17), and the levers (17) sleeved on the same support column (16) are supported in an X shape.

4. The brake for a press machine of claim 1, wherein: after the lever (17) is sleeved with the support column (16), the lever (17) close to one side of the piston (12) is shorter than the lever (17) close to one side of the driving disc (11).