阅读说明：本技术 一种热模锻系统用液压缸 (Hydraulic cylinder for hot die forging system ) 是由 汤卫东 于 2021-08-17 设计创作，主要内容包括：本发明提供了一种一种热模锻系统用液压缸,涉及液压缸技术领域,包括液压缸本体,还包括如下部件：底筒,液压缸伸入筒身内；一对光杆靠近底板设置；滑块穿设在光杆上,光杆上套设弹簧a,滑块挤压弹簧a,弹簧a一端与筒身接触；压块,为圆柱形,所述压块上设置有螺纹孔a；连接杆,与油缸底部进行连接,所述连接杆上设置有螺纹部,螺纹部套设在连接杆内,连接杆旋紧至螺纹孔a内；筒身与油缸的缸壁之间还设置有缓冲装置,该缓冲装置包括缓冲块,所述缓冲块为弹性压块,所述弹性压块的尾部连接有挤压杆,挤压杆伸入旋帽内部,所述挤压杆尾部设置了限位板,旋帽内设置有弹簧b,限位板压在弹簧b上。本发明装置具有防尘效果好以及减震效果好的优点。(The invention provides a hydraulic cylinder for a hot die forging system, which relates to the technical field of hydraulic cylinders, and comprises a hydraulic cylinder body and the following components: the hydraulic cylinder extends into the cylinder body; the pair of polished rods are arranged close to the bottom plate; the sliding block is arranged on the polished rod in a penetrating mode, the polished rod is sleeved with a spring a, the sliding block extrudes the spring a, and one end of the spring a is in contact with the cylinder body; the pressing block is cylindrical and is provided with a threaded hole a; the connecting rod is connected with the bottom of the oil cylinder, a threaded part is arranged on the connecting rod, the threaded part is sleeved in the connecting rod, and the connecting rod is screwed into the threaded hole a; still be provided with buffer between the jar wall of stack shell and hydro-cylinder, this buffer includes the buffer block, the buffer block is elastic pressing block, elastic pressing block's trailing end connection has the stripper bar, and inside the stripper bar stretched into the cap of revolving, the stripper bar afterbody had set up the limiting plate, is provided with spring b in the cap of revolving, and the limiting plate is pressed on spring b. The device has the advantages of good dustproof effect and good damping effect.)

1. The utility model provides a hot die forging is pneumatic cylinder for system, includes the pneumatic cylinder body, its characterized in that: also includes the following parts: the bottom cylinder comprises a bottom plate and a cylinder body, the bottom plate is connected with the mounting part, the hydraulic cylinder extends into the cylinder body, and the diameter of the cylinder body is larger than that of the hydraulic cylinder;

the pair of polished rods are arranged close to the bottom plate, one end of each polished rod is fixed with the cylinder body, and the other end of each polished rod is fixed with the limiting plate;

the sliding block is arranged on the polished rod in a penetrating mode, the polished rod is sleeved with a spring a, the sliding block extrudes the spring a, and one end of the spring a is in contact with the cylinder body;

one end of the connecting rod is hinged with the hinged support on the sliding block, and the other end of the connecting rod is hinged with the pressing block;

the pressing block is cylindrical, at least 4 connecting rods and a polished rod and sliding block combination connected with the connecting rods are symmetrically arranged on the periphery of the pressing block, and a threaded hole a is formed in the pressing block;

the connecting rod is connected with the bottom of the oil cylinder, a threaded part is arranged on the connecting rod and arranged at the tail part of the connecting rod, the threaded part is sleeved in the connecting rod, a bearing is clamped at the joint of the threaded part and the connecting rod, and the connecting rod is screwed into the threaded hole a;

a buffer device is further arranged between the cylinder body and the cylinder wall of the oil cylinder, the buffer device comprises a buffer block, the buffer block is an elastic pressing block, the tail part of the elastic pressing block is connected with extrusion rods, the extrusion rods are symmetrically arranged inside the buffer device, the buffer device further comprises a screw cap, a threaded hole b is formed in the cylinder body, external threads are arranged on the outer surface of the screw cap, and the screw cap is screwed in the threaded hole b;

the extrusion rod stretches into the interior of the screw cap, the tail portion of the extrusion rod is provided with a limiting plate, a spring b is arranged in the screw cap, the limiting plate is pressed on the spring b, and the buffering device is used for buffering when the outer cylinder wall of the hydraulic cylinder is in contact with the cylinder body.

2. The hydraulic cylinder for a hot die forging system according to claim 1, wherein: one end of the spring a is welded and fixed with the inner wall of the cylinder body.

3. The hydraulic cylinder for a hot die forging system according to claim 1, wherein: the screw thread portion of connecting rod is provided with the hexagonal block, the welding of hexagonal block is in screw thread portion surface, the hexagonal block is used for the rotation of screw thread portion.

4. The hydraulic cylinder for a hot die forging system according to claim 1, wherein: the end part of the screw cap is also provided with a rotating part which is a rubber pad adhered and fixed on the end part of the screw cap.

5. The hydraulic cylinder for a hot die forging system according to claim 1, wherein: the end part of the hydraulic cylinder is also provided with a sealing cover, and the sealing cover is internally provided with a dust cleaning device which comprises a dust suction pipe arranged in the sealing cover and a dust suction head connected with the dust suction pipe;

the end part of the dust collection head is a hairbrush part, a negative pressure pipeline is arranged in the dust collection head, the negative pressure pipeline is connected with a dust collection pipe, and the dust collection pipe is connected with an external pipe joint;

the negative pressure pipeline extends into the brush part to clean the piston rod.

6. The hydraulic cylinder for a hot die forging system according to claim 5, wherein: the dust collection pipe comprises a telescopic hose at the middle part and a clamping joint arranged at the head part of the telescopic hose;

the dust collection head is provided with a plastic interface tube, and the clamping joint is clamped on the plastic interface tube.

Technical Field

The invention relates to the technical field of hydraulic cylinders, in particular to a hydraulic cylinder for a hot die forging system.

Background

Hot die forging, which is one of forging techniques, generally refers to a precision forging method in which a metal blank is heated to a temperature higher than the recrystallization temperature of the material, and then the metal blank is plastically formed into a forged piece with a die.

The hot die forging can be divided into single-process hot die forging and multi-station hot die forging according to different forging processes. The single-step hot forging is generally performed by press working equipment such as a friction press, a mechanical press, a hammer, and an oil press.

In the forming step of the hot die forging process, a hydraulic system is used for controlling the hot die forging step, such as the opening and closing of a die, however, as the die for hot die forging has large mass, when a hydraulic cylinder is used for lifting and other operations, the hydraulic cylinder is rigidly connected and lacks an effective buffer device, the hydraulic system is greatly damaged under the condition that the die has vibration and the like, meanwhile, more dust is generated in the hot die forging forming, and the dust is not removed in time, is adsorbed on a piston rod of the hydraulic cylinder, and the piston rod returns to enter the hydraulic cylinder to pollute hydraulic oil and destroy the sealing property of a guider.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a novel hydraulic cylinder for a hot die forging system, which can solve the technical problems in the background art.

The invention is realized by adopting the following technical scheme: the utility model provides a hot die forging is pneumatic cylinder for system, includes the pneumatic cylinder body, still includes following part: the bottom cylinder comprises a bottom plate and a cylinder body, the bottom plate is connected with the mounting part, the hydraulic cylinder extends into the cylinder body, and the diameter of the cylinder body is larger than that of the hydraulic cylinder;

the pair of polished rods are arranged close to the bottom plate, one end of each polished rod is fixed with the cylinder body, and the other end of each polished rod is fixed with the limiting plate;

the sliding block is arranged on the polished rod in a penetrating mode, the polished rod is sleeved with a spring a, the sliding block extrudes the spring a, and one end of the spring a is in contact with the cylinder body;

one end of the connecting rod is hinged with the hinged support on the sliding block, and the other end of the connecting rod is hinged with the pressing block;

the pressing block is cylindrical, at least 4 connecting rods and a polished rod and sliding block combination connected with the connecting rods are symmetrically arranged on the periphery of the pressing block, and a threaded hole a is formed in the pressing block;

the connecting rod is connected with the bottom of the oil cylinder, a threaded part is arranged on the connecting rod and arranged at the tail part of the connecting rod, the threaded part is sleeved in the connecting rod, a bearing is clamped at the joint of the threaded part and the connecting rod, and the connecting rod is screwed into the threaded hole a;

a buffer device is further arranged between the cylinder body and the cylinder wall of the oil cylinder, the buffer device comprises a buffer block, the buffer block is an elastic pressing block, the tail part of the elastic pressing block is connected with extrusion rods, the extrusion rods are symmetrically arranged inside the buffer device, the buffer device further comprises a screw cap, a threaded hole b is formed in the cylinder body, external threads are arranged on the outer surface of the screw cap, and the screw cap is screwed in the threaded hole b;

the extrusion rod stretches into the interior of the screw cap, the tail portion of the extrusion rod is provided with a limiting plate, a spring b is arranged in the screw cap, the limiting plate is pressed on the spring b, and the buffering device is used for buffering when the outer cylinder wall of the hydraulic cylinder is in contact with the cylinder body.

The preferred embodiment of the invention is that one end of the spring a is welded and fixed with the inner wall of the cylinder body.

A preferred embodiment of the present invention is that the threaded portion of the connecting rod is provided with a hexagonal cap welded to an outer surface of the threaded portion, the hexagonal cap being used for rotation of the threaded portion.

In a preferred embodiment of the present invention, the end of the screw cap is further provided with a rotating part, and the rotating part is a rubber pad which is bonded and fixed on the end of the screw cap.

The invention has the preferable implementation mode that the end part of the hydraulic cylinder is also provided with a sealing cover, and the sealing cover is internally provided with an ash removal device which comprises a dust suction pipe arranged in the sealing cover and a dust suction head connected with the dust suction pipe;

the end part of the dust collection head is a hairbrush part, a negative pressure pipeline is arranged in the dust collection head, the negative pressure pipeline is connected with a dust collection pipe, and the dust collection pipe is connected with an external pipe joint;

the negative pressure pipeline extends into the brush part to clean the piston rod.

The invention has the preferred implementation mode that the dust collection pipe comprises a telescopic hose at the middle part and a clamping joint arranged at the head part of the telescopic hose;

the dust collection head is provided with a plastic interface tube, and the clamping joint is clamped on the plastic interface tube.

Compared with the prior art, the damping cylinder has the advantages that the bottom cylinder for damping is arranged at the bottom of the hydraulic cylinder, and the buffer device is arranged in the low cylinder, so that the axial and radial vibration generated by vibration can be absorbed, and the damping cylinder has stronger damping and energy-absorbing effects;

simultaneously, having set up ash removal device in the cylinder cap position of pneumatic cylinder, the effectual dust of knowing the piston rod adhesion prevents to cause the damage to the pneumatic cylinder.

Drawings

FIG. 1 is a schematic diagram of the apparatus of the present invention;

FIG. 2 is a schematic view of the connection of the barrel to the hydraulic cylinder of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2;

fig. 4 is a partially enlarged schematic view of fig. 1.

In the figure: 1. a barrel body; 2. a hydraulic cylinder; 21. a connecting rod; 211. a hexagonal cap; 212. a threaded portion; 3. a sealing cover; 31. a flexible hose; 32. a dust collection head; 321. a brush part; 322. a negative pressure pipeline; 323. a mouthpiece; 324. a clamping head; 4. a polish rod; 41. a limiting block; 5. a slider; 51. a hinged support; 6. a connecting rod; 7. a spring a; 8. briquetting; 81. a threaded hole a; 9. a buffer device; 91. elastic pressing blocks; 10. screwing the cap; 101. an extrusion stem; 102. a limiting plate; 103. a rotation part; 104. and a spring b.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

The hydraulic cylinder 2 for the hot die forging system shown in fig. 1-4 comprises a hydraulic cylinder 2 body, and further comprises the following components: the bottom barrel comprises a bottom plate and a barrel body 1, the bottom plate is connected with the mounting part, the hydraulic cylinder 2 extends into the barrel body 1, and the diameter of the barrel body 1 is larger than that of the hydraulic cylinder 2;

the pair of polish rods 4 are arranged close to the bottom plate, one end of each polish rod is fixed with the cylinder body 1, and the other end of each polish rod is fixed with the limiting plate 102;

the sliding block 5 penetrates through the polish rod 4, the spring a7 is sleeved on the polish rod 4, the sliding block 5 extrudes the spring a7, and one end of the spring a7 is in contact with the cylinder body 1;

one end of the connecting rod 6 is hinged with a hinged support 51 on the sliding block 5, and the other end is hinged with the pressing block 8;

the pressing block 8 is cylindrical, at least 4 connecting rods 6 and a polished rod 4 and sliding block 5 combination connected with the connecting rods 6 are symmetrically arranged on the periphery of the pressing block 8, and a threaded hole a81 is formed in the pressing block 8;

the connecting rod 21 is connected with the bottom of the oil cylinder, a threaded part 212 is arranged on the connecting rod 21, the threaded part 212 is arranged at the tail part of the connecting rod 21, the threaded part 212 is sleeved in the connecting rod 21, a bearing is clamped at the joint of the threaded part 212 and the connecting rod 21, and the connecting rod 21 is screwed into the threaded hole a 81;

a buffer device 9 is further arranged between the cylinder body 1 and the cylinder wall of the oil cylinder, the buffer device 9 comprises a buffer block, the buffer block is an elastic pressing block 91, the tail part of the elastic pressing block 91 is connected with an extrusion rod 101, the extrusion rods 101 are symmetrically arranged inside the buffer device 9, the buffer device 9 further comprises a screw cap 10, a threaded hole b is formed in the cylinder body 1, an external thread is arranged on the outer surface of the screw cap 10, and the screw cap 10 is screwed in the threaded hole b;

the extrusion rod 101 extends into the screw cap 10, the tail of the extrusion rod 101 is provided with a limiting plate 102, a spring b104 is arranged in the screw cap 10, the limiting plate 102 is pressed on the spring b104, and the buffer device 9 is used for buffering when the outer cylinder wall of the hydraulic cylinder 2 is in contact with the cylinder body 1.

The implementation principle of the device of the invention is as follows: the bottom of the hydraulic cylinder 2 is provided with a connecting rod 21, the hydraulic cylinder 2 extends into the cylinder body 1, a shock-absorbing press block 8 is arranged in the cylinder body 1, a threaded part 212 is arranged on the connecting rod 21, the connecting rod 21 is screwed onto the press block 8, when the connecting rod 21 presses the press block 8, the slide block 5 is driven to move towards two sides, a spring arranged on the slide block 5 can press the slide block 5 to buffer the slide block 5, and therefore the press block 8 can buffer;

simultaneously, buffer 9 has been set up on stack shell 1's inner wall, the device has included an elastic pressing block 91, this elastic pressing block 91 contacts with pneumatic cylinder 2, the pressure ram 101 supports elastic pressing block 91, pressure ram 101 wears to establish in screw cap 10, screw cap 10 is connected with screw hole b on the stack shell 1 through the external screw thread of its surface, make screw cap 10 fix on stack shell 1, spring b104 has been set up in screw cap 10, spring b104 can support pressure ram 101, therefore, when the hydro-cylinder produces vibrations and contacts with the inner wall of stack shell 1, spring b104 can provide the buffering, and this buffer 9 can center on 1 inner wall of stack shell round, abundant provide the buffering between pneumatic cylinder 2 and the stack shell 1.

In a preferred embodiment of the present invention, one end of the spring a7 is welded and fixed to the inner wall of the barrel 1. The fixing manner is welded so that the spring a7 does not slide with the slider 5.

In a preferred embodiment of the present invention, the threaded portion 212 of the connecting rod 21 is provided with a hexagonal cap 211, the hexagonal cap 211 is welded to an outer surface of the threaded portion 212, and the hexagonal cap 211 is used for rotation of the threaded portion 212.

In a preferred embodiment of the present invention, a rotating part 103 is further disposed at an end of the screw cap 10, and the rotating part 103 is a rubber pad adhesively fixed at the end of the screw cap 10. The rotating part 103 is arranged to facilitate the rotation of the rotating cap 10.

As a preferred embodiment of the present invention, a sealing cover 3 is further disposed at an end of the hydraulic cylinder 2, and a dust removing device is disposed in the sealing cover 3, and includes a dust suction pipe disposed in the sealing cover 3 and a dust suction head 32 connected to the dust suction pipe;

the end part of the dust collection head 32 is a brush part 321, a negative pressure pipeline 322 is arranged in the dust collection head 32, the negative pressure pipeline 322 is connected with a dust collection pipe, and the dust collection pipe is connected with an external pipe joint;

the negative pressure pipeline 322 extends into the brush part 321 to clean the piston rod.

The dust removing device in the device is characterized in that the dust collecting head 32 is arranged in the sealing cover 3, the brush part 321 is arranged on the dust collecting head 32, the brush part 321 can be tightly attached to the piston rod to clean the piston rod, and meanwhile, the negative pressure device is also arranged to suck dust while cleaning the dust.

In a preferred embodiment of the present invention, the dust collection tube includes a middle flexible tube 31 and a clamping head 324 disposed at the head of the flexible tube 31;

the dust collection head 32 is provided with a plastic interface tube 323, and the clamping connector 324 is clamped on the plastic interface tube 323.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.