Clamp for testing hydraulic cylinder

Abstract

The utility model discloses a hydraulic cylinder test clamp, comprising oppositely arranged vertical arms, a support arm arranged between the vertical arms, two sides of the support arm are provided with fixing members, the fixing members comprise a sliding plate, the support arm is provided with a limiting chute, the vertical arm is provided with a first driving member for driving the sliding plate, the sliding plate is provided with an upper arc clamping plate, and the upper arc clamping plate is provided with a lower arc clamping plate. A second driving piece for driving the upper arc-shaped clamping plate is arranged at the upper end of the sliding plate, a mounting block is arranged in the middle of the limiting sliding groove, springs are arranged on the two sides of the mounting block, a lower arc-shaped clamping plate is arranged on the limiting sliding groove, a second sliding block is arranged at the lower end of the lower arc-shaped clamping plate, and the second sliding block is connected with the springs. When the hydraulic cylinder to be tested is placed, the lower arc-shaped clamping plate is tightly attached to the hydraulic cylinder under the action of the spring, so that an operator can conveniently determine the moving position of the sliding plate, the situation that the operator excessively or slightly rotates the first driving hand wheel can be effectively avoided, stable clamping of the hydraulic cylinder can be achieved through one-time operation, and the installation and debugging efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a clamp for testing a hydraulic cylinder. Background Art

[0002] During the leakage test of the hydraulic cylinder, the hydraulic cylinder needs to be kept stable to ensure the accuracy of the test. The existing clamping tools are complicated to install and debug, and the clamping efficiency is low, which can hardly meet the test needs. Utility Model Content

[0003] The utility model aims to provide a clamp for testing a hydraulic cylinder, so as to solve the problems of complicated installation and debugging and low clamping efficiency of existing clamping tools.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] The cam is provided with a first sliding block at the bottom end of the sliding block, and a second sliding block is provided on the supporting arm to engage the first sliding block.

[0006] Furthermore, the limiting slide grooves include two, and the two limiting slide grooves are symmetrically opened on the support arm, a positioning block is provided on the support arm between the two limiting slide grooves, a positioning groove is opened on the upper end of the positioning block, and the positioning block is located on the connecting line of the two mounting blocks.

[0007] Furthermore, the first driving member includes a first driving screw rod installed on the vertical arm, one end of the first driving screw rod is rotatably connected to the sliding plate, and the other end of the first driving screw rod is provided with a first driving hand wheel.

[0008] Furthermore, the sliding plate is provided with a mounting groove, the upper arc-shaped clamping plate is provided with an extension block adapted to the mounting groove, the second driving member includes a second driving screw, the lower end of the second driving screw is located in the mounting groove and is rotatably connected to the extension block, and the upper end of the second driving screw is provided with a second driving handwheel.

[0009] Furthermore, the sliding plate is provided with anti-slip grooves on both sides of the mounting groove, and the upper arc-shaped clamping plate is provided with anti-slip blocks adapted to the anti-slip grooves.

[0010] The utility model has the following advantages:

[0011] By utilizing the springs arranged on both sides of the mounting block, when the hydraulic cylinder to be tested is placed, under the action of the springs, the lower arc-shaped clamping plate is in close contact with the hydraulic cylinder, thereby facilitating the operator to determine the moving position of the sliding plate. This can effectively prevent the operator from excessively or slightly rotating the first driving hand wheel. The hydraulic cylinder can be stably clamped in one operation, and the installation and debugging efficiency is higher. At the same time, it can be adapted to the clamping of hydraulic cylinders of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 It is a schematic diagram of the top structure of the utility model.

[0014] Figure 3 It is a schematic diagram of the front structure of the sliding plate.

[0015] In the figure, 1-vertical arm, 2-support arm, 3-sliding plate, 4-first sliding block, 5-limiting slide groove, 6-upper arc clamping plate, 7-mounting block, 8-spring, 9-lower arc clamping plate, 10-first driving screw, 11-first driving hand wheel, 12-mounting groove, 13-second driving screw, 14-second driving hand wheel, 15-positioning block, 16-anti-slip slide groove. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0018] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0019] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0020] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] refer to Figure 1-3 As shown, one embodiment of the utility model is:

[0023] A hydraulic cylinder test fixture, comprising vertical arms 1 arranged opposite to each other, a support arm 2 being arranged between the vertical arms 1, a fixing member for clamping the hydraulic cylinder to be tested being slidably mounted on both sides of the support arm 2, the fixing member comprising a sliding plate 3, a first slider 4 being arranged at the lower end of the sliding plate 3, a limiting slide groove 5 adapted to the first slider 4 being arranged on the support arm 2, a first driving member driving the sliding plate 3 to move on the support arm 2 being arranged on the vertical arm 1, and a side of the sliding plate 3 facing away from the driving member being mounted There is an upper arc clamping plate 6, and the upper end of the sliding plate 3 is provided with a second driving member for driving the upper arc clamping plate 6. A mounting block 7 is provided in the middle of the limiting slide groove 5, and springs 8 are provided on both sides of the mounting block 7. Lower arc clamping plates 9 are provided on both sides of the limiting slide groove 5 and the mounting block 7. The lower end of the lower arc clamping plate 9 is provided with a second sliding block adapted to the limiting slide groove 5, and the second sliding block is connected to the spring 8. The lower arc clamping plate 9 and the upper arc clamping plate 6 are adapted to each other.

[0024] Specifically, the lower arc-shaped clamping plate 9 is located between the two sliding plates 3;

[0025] The first driving member comprises a first driving screw 10 mounted on the vertical arm 1, one end of the first driving screw 10 is rotatably connected to the sliding plate 3, and the other end of the first driving screw 10 is provided with a first driving hand wheel 11;

[0026] The sliding plate 3 is provided with a mounting groove 12, and the upper arc-shaped clamping plate 6 is provided with an extension block adapted to the mounting groove 12. The second driving member includes a second driving screw 13, the lower end of the second driving screw 13 is located in the mounting groove 12 and is rotatably connected to the extension block, and the upper end of the second driving screw 13 is provided with a second driving hand wheel 14.

[0027] When in use, the hydraulic cylinder to be tested is placed horizontally on the support arm 2 in advance, and the hydraulic cylinder to be tested squeezes the lower arc-shaped clamping plates 9 on both sides of the mounting block 7 and is tightly attached to the lower arc-shaped clamping plates 9. Then, the first driving hand wheel 11 of the first fixing member is operated to move the sliding plates 3 toward each other, and when the sliding plates 3 are attached to the lower arc-shaped clamping plates 9, the second driving hand wheel 14 of the second driving member is operated to move the upper arc-shaped clamping plates 6 downward to clamp the hydraulic cylinder to be tested.

[0028] By utilizing the springs 8 arranged on both sides of the mounting block 7, when the hydraulic cylinder to be tested is placed, under the action of the springs 8, the lower arc-shaped clamping plate 9 is in close contact with the hydraulic cylinder, thereby facilitating the operator to determine the moving position of the sliding plate 3. When operating the first driving hand wheel 11, it can effectively avoid the operator from rotating the first driving hand wheel excessively or slightly. It is only necessary to make the sliding plate 3 fit with the lower arc-shaped clamping plate 9. Then, when operating the second driving member, the upper arc-shaped clamping plate 6 moves downward, and cooperates with the lower arc-shaped clamping plate 9 to achieve stable clamping of the hydraulic cylinder. The installation and debugging efficiency is higher, and it can be adapted to the clamping of hydraulic cylinders of different sizes.

[0029] Furthermore, in order to further improve the efficiency of positioning and clamping, the limiting slide grooves 5 include two, and the two limiting slide grooves 5 are symmetrically arranged on the support arm 2, and a positioning block 15 is arranged on the support arm 2 between the two limiting slide grooves 5, and a positioning groove is arranged at the upper end of the positioning block 15, and the positioning block 15 is located on the connecting line of the two mounting blocks 12. By using the positioning block 15 and the positioning groove, pre-positioning can be achieved when placing the hydraulic cylinder, reducing the probability of lateral rolling of the hydraulic cylinder.

[0030] The sliding plate 3 is provided with anti-slip grooves 16 on both sides of the mounting groove 12, and the upper arc-shaped clamping plate 6 is provided with anti-slip blocks adapted to the anti-slip grooves 16. The anti-slip blocks are slidably clamped in the anti-slip grooves 16 to ensure that the upper arc-shaped clamping plate 6 moves on the vertical plane of the sliding plate 3.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydraulic cylinder testing fixture, characterized in that: The top end of the sliding panel also is provided with an interlocking structure, and the interlocking structure is hinged on the base with a first end in contact with the first and second end of the sliding panel, and a third end of the sliding panel is connected with the interlocking structure to form a closed loop of the gear.

2. A hydraulic cylinder testing fixture according to claim 1, characterized in that: The limiting slide grooves include two, and the two limiting slide grooves are symmetrically arranged on the support arm. A positioning block is provided on the support arm between the two limiting slide grooves. A positioning groove is provided on the upper end of the positioning block. The positioning block is located on the connecting line of the two mounting blocks.

3. A hydraulic cylinder testing fixture according to claim 1, characterized in that: The first driving member comprises a first driving screw rod mounted on the vertical arm, one end of the first driving screw rod is rotatably connected to the sliding plate, and the other end of the first driving screw rod is provided with a first driving hand wheel.

4. A hydraulic cylinder testing fixture according to claim 1, characterized in that: The sliding plate is provided with a mounting groove, the upper arc-shaped clamping plate is provided with an extension block adapted to the mounting groove, the second driving member includes a second driving screw, the lower end of the second driving screw is located in the mounting groove and is rotatably connected to the extension block, and the upper end of the second driving screw is provided with a second driving handwheel.

5. A hydraulic cylinder testing fixture according to claim 4, characterized in that: The sliding plate is provided with anti-slip grooves on both sides of the mounting groove, and the upper arc-shaped clamping plate is provided with anti-slip blocks adapted to the anti-slip grooves.

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