Hydraulic compensation device with cylinder scoring prevention effect

Abstract

The utility model belongs to the technical field of hydraulic compensation devices, and particularly relates to a hydraulic compensation device with a cylinder scoring prevention effect, which comprises a workbench, a spherical block and a fastening component, and is characterized in that the spherical block is arranged, a plug rod moves upwards to drive the spherical block to move upwards, and the spherical block jacks up a lower cross beam to realize a compensation function; the spherical block can prevent the piston rod from making direct contact with the lower cross beam, the front plate and the rear plate, the part, located outside the spherical groove, of the spherical block moves towards the interior of the spherical groove after being stressed and deformed, piston rod deformation caused by direct extrusion of the piston rod when the spherical block deforms is avoided, the deformation amount of the piston rod is greatly reduced, and the service life of the hydraulic compensation device body is prolonged. The fastening assembly is arranged, the bolt head is rotated to drive the rotating rod and the threaded rod to rotate and be separated from the spherical block and the piston rod, the spherical block can be taken down to be replaced again, and therefore the spherical block can be replaced in time after deformation, and the deformation amount of the piston rod caused by deformation of the spherical block is further reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hydraulic compensation device technical field, and specifically relates to a hydraulic compensation device with anti-pulling cylinder effect. BACKGROUND

[0002] When the workpiece is machined by the bending machine and the like, the lower cross beam is forced to be concave downward, thereby affecting the machining effect, and the existing structure is mostly fixed with side plates on both sides of the lower cross beam, and a hydraulic compensation device is installed at the position corresponding to the bottom of the lower beam plate of the side plate, the hydraulic compensation device can push the bottom of the lower cross beam by using the oil cylinder, so that the lower cross beam is convex upward, thereby realizing the compensation function.

[0003] When the hydraulic compensation device compensates, the piston rod of the oil cylinder lifts the lower cross beam and the two side plates upward, the bottom of the lower cross beam is forced to be convex upward, the bottom of the side plate is forced to be concave downward, the force on the top of the piston rod causes the deformation of the periphery, the deformation of the piston rod extrudes the sealing ring to cause the oil leakage, and the piston rod is easily rubbed against the inner wall of the oil cylinder when it moves under the thrust, thereby causing the pulling cylinder phenomenon, and affecting the service life of the oil cylinder. CONTENT OF THE NEW UTILITY MODEL

[0004] The utility model aims at providing a hydraulic compensation device with anti-pulling cylinder effect, which solves the problem that when the hydraulic compensation device compensates, the piston rod of the oil cylinder lifts the lower cross beam and the two side plates upward, the bottom of the lower cross beam is forced to be convex upward, the bottom of the side plate is forced to be concave downward, the force on the top of the piston rod causes the deformation of the periphery, the deformation of the piston rod extrudes the sealing ring to cause the oil leakage, and the piston rod is easily rubbed against the inner wall of the oil cylinder when it moves under the thrust, thereby causing the pulling cylinder phenomenon, and affecting the service life of the oil cylinder.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] A hydraulic compensation device with anti-pulling cylinder effect, comprising:

[0007] A workbench is provided with a lower cross beam at the bottom, and a hydraulic compensation device body is arranged below the lower cross beam;

[0008] A spherical block is arranged on the top of the hydraulic compensation device body, and the spherical block is used for reducing the deformation amount of the hydraulic compensation device body;

[0009] A fastening assembly is arranged between the hydraulic compensation device body and the spherical block, and the fastening assembly is used for disassembling and assembling the spherical block.

[0010] In a preferred scheme, symmetrical oil cylinders are fixedly installed on the top of the workbench, and front plates and rear plates are fixedly arranged on the front and rear sides of the lower cross beam, respectively.

[0011] In a preferred scheme, the plurality of notches are arranged on the front surface of the bottom of the workbench, the hydraulic compensation device body comprises a bracket, a compensation cylinder and a piston rod, the plurality of brackets are fixedly arranged on the front surface of the workbench, the compensation cylinder is fixedly arranged on the back surface of the bracket, the bottom surface of the compensation cylinder is fixedly connected with the inner wall of the notch, and the piston rod is slidably connected with the inner wall of the compensation cylinder.

[0012] In a preferred scheme, the top surface of the piston rod is provided with a spherical groove, the bottom surface of the spherical block and the inner bottom surface of the spherical groove are spherical surfaces, the top surface of the spherical block is slightly higher than the top surface of the piston rod, and the maximum diameter length of the cross section of the spherical block is slightly smaller than the maximum diameter length of the cross section of the spherical groove.

[0013] In a preferred scheme, the fastening assembly comprises a bolt head, a rotating rod, a threaded rod, a first threaded groove, a second threaded groove, a vertical groove, a small spherical convex pad and a small spherical concave pad, the top of the spherical block is provided with the bolt head, the bottom surface of the bolt head is fixedly provided with the rotating rod, the bottom surface of the rotating rod is fixedly provided with the threaded rod, the spherical surface of the bottom of the spherical block is provided with the first threaded groove, the spherical surface of the bottom of the spherical groove is communicated with the second threaded groove, the top surface of the spherical block is provided with the vertical groove communicated with the first threaded groove, the outer side of the rotating rod is provided with the small spherical convex pad, and the inner bottom surface of the vertical groove is fixedly provided with the small spherical concave pad.

[0014] In a preferred scheme, the threaded rod is adapted to the first threaded groove and the second threaded groove respectively, the threaded rod is threadedly connected with the spherical block and the piston rod through the first threaded groove and the second threaded groove respectively, the rotating rod is fixedly connected with the small spherical convex pad, and the bottom surface of the small spherical convex pad and the top surface of the small spherical concave pad are provided with spherical surfaces.

[0015] The utility model achieves the following technical effects:

[0016] The utility model discloses a spherical block is arranged, when the hydraulic compensation device body compensates, the piston rod moves up and drives the spherical block to move up, the spherical block lifts the lower crossbeam and realizes the compensation function, the spherical block can avoid the piston rod directly contacting the lower crossbeam, the front plate and the back plate, the part of the spherical block located outside the spherical groove moves to the inside of the spherical groove after stress deformation, the spherical block is directly extruded to cause the piston rod to deform when the spherical block deforms, thereby greatly reducing the deformation amount of the piston rod, prolonging the service life of the hydraulic compensation device body.

[0017] The utility model discloses a fastening assembly is set up, and the threaded rod is simultaneously threadedly connected with the spherical block and the piston rod, can fix the position of the spherical block relative to the piston rod, rotates the bolt head and drives the rotating rod and the threaded rod to rotate and separates the spherical block and the piston rod, can take down the spherical block and change over again, thereby realizing the change over of the spherical block in time after the deformation of the spherical block, further reducing the deformation amount of the piston rod caused by the deformation of the spherical block. DRAWINGS

[0018] Figure 1 is the front view structure schematic diagram of the utility model;

[0019] Figure 2 is the left view section part structure schematic diagram of the utility model;

[0020] Figure 3 is the piston rod and spherical block structure schematic diagram of the utility model;

[0021] Figure 4 is the piston rod, spherical block and fastening assembly split section structure schematic diagram of the utility model.

[0022] In the drawings, the component list represented by each sign is as follows:

[0023] 100, workbench; 101, oil cylinder;

[0024] 200, lower cross beam; 201, front plate; 202, rear plate;

[0025] 300, hydraulic compensation device body; 301, support; 302, compensation cylinder; 303, piston rod;

[0026] 400, spherical block; 401, spherical groove;

[0027] 500, fastening assembly; 501, bolt head; 502, rotating rod; 503, threaded rod; 504, first threaded groove; 505, second threaded groove; 506, vertical groove; 507, small spherical convex pad; 508, small spherical concave pad. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purpose, features and advantages of the utility more obvious and easy to understand, the specific embodiments of the utility are described in detail below with the drawings of the specification.

[0029] In the following description, a lot of specific details are set forth in order to fully understand the utility, but the utility can also be implemented in other ways different from the description, and those skilled in the art can make similar generalizations without departing from the connotation of the utility, so the utility is not limited by the specific embodiments disclosed below.

[0030] Secondly, the "one embodiment" or "embodiment" referred to here means that the specific features, structures or characteristics can be included in at least one implementation of the utility. In this specification, "in a preferred embodiment" does not mean the same embodiment, nor is it an independent or optional embodiment that excludes other embodiments.

[0031] Thirdly, the utility model is described in detail in combination with the schematic diagram, in the detailed description of the utility model, for the convenience of description, the sectional view of the device structure will be partially enlarged without the general proportion, and the schematic diagram is only an example, which should not limit the range of the utility model protection here. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual production.

[0032] Please refer to the attached Figures 1 to 2 The utility model provides a hydraulic compensation device with anti -piston effect, include: workbench 100, spherical block 400 and fastening assembly 500, workbench 100 bottom is provided with lower crossbeam 200, lower crossbeam 200 below is provided with hydraulic compensation device body 300.

[0033] In a preferred embodiment, please refer to Figures 1 to 2 Workbench 100 top fixed mounting has symmetrical oil cylinder 101, and the output end terminal of oil cylinder 101 is fixedly provided with a press block, and lower crossbeam 200 is arranged directly below the press block, and the press block is driven downward by control oil cylinder 101 to cooperate with lower crossbeam 200 to compress the workpiece, and lower crossbeam 200 is fixedly provided with front plate 201 and rear plate 202 on the two sides respectively, and front plate 201 and rear plate 202 are used to enhance the structural strength of lower crossbeam 200, improve the stability of lower crossbeam 200, reduce the deformation amount of lower crossbeam 200 to the downward concave, and the bottom surface of lower crossbeam 200 is slightly lower than front plate 201 and rear plate 202.

[0034] In a preferred embodiment, please refer to Figures 1 to 4 Workbench 100 bottom front is provided with a plurality of notches, and hydraulic compensation device body 300 includes support 301, compensation cylinder 302 and piston rod 303, a plurality of supports 301 are fixedly arranged on the front of workbench 100, compensation cylinder 302 is fixedly installed on the back of support 301, the bottom surface of compensation cylinder 302 is fixedly connected with the inner wall of the notch, piston rod 303 is slidably connected with the inner wall of compensation cylinder 302, and oil conveying channels are arranged on the back of compensation cylinder 302, and a plurality of oil conveying channels are communicated to the external hydraulic pressure reducing valve through oil conveying pipes.

[0035] In the embodiment, before workbench 100 processes the workpiece, the hydraulic pressure reducing valve is controlled to make the hydraulic oil enter the inside of compensation cylinder 302, so as to drive piston rod 303 to move upward, and piston rod 303 extrudes lower crossbeam 200 to make lower crossbeam 200 protrude upward, and the compensation function is realized.

[0036] In a preferred embodiment, please refer to Figures 1 to 4The hydraulic compensation device body 300 is provided with a spherical block 400 at the top, the piston rod 303 is provided with a spherical groove 401 at the top surface, the spherical block 400 is arranged in the spherical groove 401, the bottom surface of the spherical block 400 and the bottom surface of the spherical groove 401 are spherical surfaces, when the spherical surface of the spherical block 400 is tightly attached to the spherical surface of the spherical groove 401, the top surface of the spherical block 400 is slightly higher than the top surface of the piston rod 303, and the maximum diameter length of the cross section of the spherical block 400 is slightly smaller than the maximum diameter length of the cross section of the spherical groove 401.

[0037] In this embodiment, when the hydraulic compensation device body 300 is compensating, the piston rod 303 moves upwards to drive the spherical block 400 to move upwards, the spherical block 400 lifts the lower cross beam 200 to realize the compensation function, the spherical block 400 can avoid directly contacting the lower cross beam 200, the front plate 201 and the rear plate 202, the part of the spherical block 400 outside the spherical groove 401 moves to the inside of the spherical groove 401 after being stressed and deformed, avoiding the spherical block 400 directly extruding the piston rod 303 to cause the piston rod 303 to deform, thereby greatly reducing the deformation amount of the piston rod 303 and prolonging the service life of the hydraulic compensation device body 300.

[0038] In a preferred embodiment, please refer to Figures 1 to 4 The hydraulic compensation device body 300 and the spherical block 400 are provided with a fastening assembly 500, the fastening assembly 500 includes a bolt head 501, a rotating rod 502, a threaded rod 503, a first threaded groove 504, a second threaded groove 505, a vertical groove 506, a small spherical convex pad 507 and a small spherical concave pad 508, the spherical block 400 is provided with the bolt head 501 at the top, the bottom surface of the bolt head 501 is fixedly provided with the rotating rod 502, the bottom surface of the rotating rod 502 is fixedly provided with the threaded rod 503, the bottom of the spherical surface of the spherical block 400 is provided with the first threaded groove 504, the bottom of the spherical surface of the spherical groove 401 is communicated with the second threaded groove 505, the top surface of the spherical block 400 is provided with the vertical groove 506 communicated with the first threaded groove 504, the outer side of the rotating rod 502 is provided with the small spherical convex pad 507, and the inner bottom surface of the vertical groove 506 is fixedly provided with the small spherical concave pad 508.

[0039] In this embodiment, the threaded rod 503 is adapted to the first threaded groove 504 and the second threaded groove 505, respectively, and the threaded rod 503 is threadedly connected with the spherical block 400 and the piston rod 303 through the first threaded groove 504 and the second threaded groove 505, respectively, the rotating rod 502 is fixedly connected with the small spherical convex pad 507, and the bottom surface of the small spherical convex pad 507 and the top surface of the small spherical concave pad 508 are provided with spherical surfaces.

[0040] In the embodiment, the threaded rod 503 is screwed with the spherical block 400 and the piston rod 303 at the same time, which can fix the position of the spherical block 400 relative to the piston rod 303, rotating the bolt head 501 can make the spherical surface of the small spherical convex pad 507 tightly contact with the spherical surface of the small spherical concave pad 508, which can increase the sealing between the bolt head 501 and the spherical block 400, rotating the bolt head 501 can drive the rotating rod 502 and the threaded rod 503 to rotate and disengage from the spherical block 400 and the piston rod 303, the spherical block 400 can be removed and replaced, so that the spherical block 400 can be replaced in time after the deformation of the spherical block 400, and the deformation amount of the piston rod 303 caused by the deformation of the spherical block 400 can be further reduced.

[0041] The working principle of the utility model is:

[0042] When the device is used, before the workbench 100 processes the workpiece, the control hydraulic pressure reducing valve makes the hydraulic oil enter the inside of the compensation cylinder 302, so as to drive the piston rod 303 to move upwards, the piston rod 303 moves upwards to drive the spherical block 400 to move upwards, the spherical block 400 lifts the lower cross beam 200 to realize the compensation function, the part of the spherical block 400 outside the spherical groove 401 moves to the inside of the spherical groove 401 after being stressed and deformed, which avoids the direct extrusion of the piston rod 303 by the deformed spherical block 400, which causes the deformation of the piston rod 303, when the deformation amount of the spherical block 400 is large, rotating the bolt head 501 can drive the rotating rod 502 and the threaded rod 503 to rotate and disengage from the spherical block 400 and the piston rod 303, the spherical block 400 can be removed and replaced, which can further reduce the deformation amount of the piston rod 303 caused by the deformation of the spherical block 400, and can prevent the phenomenon of cylinder pulling of the hydraulic compensation device body 300.

[0043] The above only describes the preferred embodiments of the utility model, and it should be pointed out that, for ordinary skilled persons in the technical field, some improvements and refinements can be made without departing from the principle of the utility model, and these improvements and refinements should also be regarded as the protection range of the utility model. The structures, devices and operation methods not specifically described and explained in the utility model are implemented according to the conventional means in the field without special description and limitation.

Claims

1. A hydraulic compensation device with anti-cylinder scoring effect, characterized in that: include: A workbench (100) is provided at the bottom of the workbench (100), and a hydraulic compensation device body (300) is provided below the lower crossbeam (200). A spherical block (400) is disposed on the top of the hydraulic compensation device body (300) and is used to reduce the deformation of the hydraulic compensation device body (300). Fastening assembly (500) is disposed between the hydraulic compensation device body (300) and the spherical block (400). The fastening assembly (500) is used to disassemble and install the spherical block (400).

2. The hydraulic compensation device with anti-cylinder scoring effect according to claim 1, characterized in that: Symmetrical oil cylinders (101) are fixedly installed on the top of the workbench (100), and front plate (201) and rear plate (202) are fixedly installed on the front and rear sides of the lower crossbeam (200).

3. A hydraulic compensation device with anti-cylinder scoring effect according to claim 1, characterized in that: The workbench (100) has multiple notches through the bottom front. The hydraulic compensation device body (300) includes a bracket (301), a compensation cylinder (302), and a piston rod (303). Multiple brackets (301) are fixedly installed on the front of the workbench (100). The compensation cylinder (302) is fixedly installed on the back of the bracket (301). The bottom surface of the compensation cylinder (302) is fixedly connected to the inner wall of the notch. The piston rod (303) is slidably connected to the inner wall of the compensation cylinder (302).

4. A hydraulic compensation device with anti-cylinder scoring effect according to claim 3, characterized in that: The piston rod (303) has a spherical groove (401) on its top surface. The bottom surface of the spherical block (400) and the bottom surface inside the spherical groove (401) are both spherical surfaces. The top surface of the spherical block (400) is slightly higher than the top surface of the piston rod (303). The maximum diameter of the cross-section of the spherical block (400) is slightly smaller than the maximum diameter of the cross-section of the spherical groove (401).

5. A hydraulic compensation device with anti-cylinder scoring effect according to claim 4, characterized in that: The fastening assembly (500) includes a bolt head (501), a rotating rod (502), a threaded rod (503), a first threaded groove (504), a second threaded groove (505), a vertical groove (506), a small spherical convex washer (507), and a small spherical concave washer (508). The top of the spherical block (400) is provided with the bolt head (501), and the bottom surface of the bolt head (501) is fixedly provided with the rotating rod (502). The bottom surface of the rotating rod (502) is fixedly provided with... The threaded rod (503) has a first threaded groove (504) at the bottom of the spherical surface of the spherical block (400), and the bottom of the spherical surface of the spherical groove (401) is connected to a second threaded groove (505). The top surface of the spherical block (400) is provided with a vertical groove (506) that connects to the first threaded groove (504). A small spherical convex pad (507) is provided through the outside of the rotating rod (502), and a small spherical concave pad (508) is fixedly provided on the bottom surface inside the vertical groove (506).

6. A hydraulic compensation device with anti-cylinder scoring effect according to claim 5, characterized in that: The threaded rod (503) is adapted to the first threaded groove (504) and the second threaded groove (505) respectively. The threaded rod (503) is threadedly connected to the spherical block (400) and the piston rod (303) through the first threaded groove (504) and the second threaded groove (505) respectively. The rotating rod (502) is fixedly connected to the small spherical convex pad (507). The bottom surface of the small spherical convex pad (507) and the top surface of the small spherical concave pad (508) are both provided with spherical surfaces.

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