CN219198855U

CN219198855U - Hydraulic testing machine anchor clamps device of oiling

Info

Publication number: CN219198855U
Application number: CN202320614240.5U
Authority: CN
Inventors: 杨洁; 应旭东; 裘雷; 傅镇波; 袁凯
Original assignee: Zhejiang Ninggong Testing Technology Co ltd
Current assignee: Zhejiang Ninggong Testing Technology Co ltd
Priority date: 2023-03-21
Filing date: 2023-03-21
Publication date: 2023-06-16
Anticipated expiration: 2033-03-21

Abstract

The application relates to a hydraulic test machine anchor clamps oiling device relates to the field of anchor clamps technique, and it includes the clamp body and slides the clamp splice of being connected with the clamp body, the clamp body is close to one side of clamp splice and is provided with the cotton that is used for lubricating clamp body and clamp splice, the clamp body presss from both sides tight cotton with the clamp splice, the mounting groove of the cotton installation of oil feeding has been seted up on the clamp body, the thickness of cotton that oils is greater than the degree of depth of mounting groove, set up the oiling chamber that is used for the injection of oil on cotton with oil on the clamp body, annotate the oil chamber and communicate mutually with the mounting groove. This application has the effect that improves the convenience of oiling lubrication between the pincers body and the clamp splice.

Description

Hydraulic testing machine anchor clamps device of oiling

Technical Field

The application relates to the field of clamp technology, in particular to a clamp oiling device of a hydraulic testing machine.

Background

The hydraulic testing machine is also called a universal testing machine, and can perform various tests of stretching, compressing, bending and the like of various metal materials and nonmetal materials.

In the related art, when a hydraulic testing machine performs a test, a sample is usually fixed on a clamp, the clamp comprises a clamp body, a clamping block connected to the clamp body in a sliding manner, and a push rod for pushing the clamping block to be close to each other so as to clamp the sample.

With respect to the related art in the above, the inventors consider that: when the clamp body and the clamp block are lubricated, after the ejector rod is required to push the clamp block and the clamp body to be misplaced, the oil gun is used for injecting lubricating oil on the contact surface of the clamp body and the clamp block, so that the oil lubrication between the clamp body and the clamp block is inconvenient, and the space for improvement is provided.

Disclosure of Invention

In order to improve the convenience of oiling lubrication between the clamp body and the clamp splice, the application provides a hydraulic test machine clamp oiling device.

The application provides a hydraulic test machine anchor clamps device of oiling adopts following technical scheme:

the utility model provides a hydraulic test machine anchor clamps oiling device, includes the pincers body and slides the clamp splice of being connected with the pincers body, the pincers body is close to one side of clamp splice and is provided with the cotton that is used for lubricating pincers body and clamp splice, pincers body and clamp splice press from both sides tight cotton, set up the mounting groove that the cotton installation of fuel feeding was installed on the pincers body, set up the oiling chamber that is used for the injection of oil on the cotton of oil on the pincers body, annotate the oil pocket and communicate mutually with the mounting groove.

Through adopting above-mentioned technical scheme, with the oil through annotating the oil pocket injection on the cotton, when the cotton with clamp splice and clamp body clamp tightly oil, make the oil flow out from the cotton to between clamp splice and the clamp splice to need not change the position of clamp splice and clamp body, in daily use, clamp body and clamp splice can lubricate when sliding, and then improve the lubricated convenience of oiling between clamp body and the clamp splice.

Optionally, an oil blocking layer is arranged on the oil cotton, and the oil blocking layer is positioned on one side of the oil cotton perpendicular to the contact surface of the oil cotton and the clamping block.

Through adopting above-mentioned technical scheme, make and keep off the oil reservoir and shelter from the oil cotton with the one side of the basal plane of oil cotton and clamp splice on with the oil cotton, avoid the oil to flow from the side of oil cotton as far as possible, lead to the oil cotton poor to the lubrication effect of clamp splice, and then improve the lubrication effect of oil cotton.

Optionally, the oiling chamber includes oil inlet and oil-out, the oil-out is located the oiling chamber and is close to one side of mounting groove, the oil inlet is located the oiling chamber and is kept away from one side of oil-out, the pincers body is provided with the oiling subassembly that is used for oiling near one side of oil inlet, the pincers body is provided with the subassembly that opens and close that is used for opening and close the oil-out near one side of oil-out.

Through adopting above-mentioned technical scheme, make and open and close the oil-out closure of subassembly control to make and refuel the subassembly and add the oil filling intracavity through the oil inlet, make the oil preserve in the filling intracavity, when needs are poured into the oil cotton with the oil, make again and open and close subassembly control oil-out and open and close, thereby accomplish the interpolation of oil, and then make the oil get into more convenient in the oil cotton.

Optionally, the oiling assembly comprises an oil crusty pancake used for storing oil and an oil pipe used for oiling, the oil pipe is inserted into the oil inlet, the oil pipe is communicated with the oil crusty pancake and the oiling cavity, and the oil crusty pancake drives the oil to enter the oiling cavity through the oil pipe.

Through adopting above-mentioned technical scheme, through pressing the oil crusty pancake, make the oil crusty pancake with the oil of storage through oil pipe and oil inlet in proper order add the oil filling intracavity, make the oil preserve in the oil filling intracavity, and then improve the convenience that the oil got into the oil filling intracavity.

Optionally, the oiling assembly further comprises a clamping disc, the clamping disc is arranged on one side, close to the clamp body, of the oil pipe, a clamping groove for clamping the clamping disc is formed in the clamp body, and the clamping groove is mutually communicated with the oil inlet.

Through adopting above-mentioned technical scheme, with oil pipe insertion oil inlet to make joint dish joint in the joint inslot, thereby make the joint dish spacing in the oil inlet with oil pipe along oil pipe's direction of insertion, and then improve the stability of being connected between oil pipe and the pincers body.

Optionally, the oiling assembly further comprises a fixing disc, a perforation for the oil supply pipe to penetrate is formed in the fixing disc, the fixing disc is in threaded fit with the clamping groove, and the fixing disc is tightly pressed on the clamping disc.

Through adopting above-mentioned technical scheme, after inserting oil pipe in the oil inlet, make oil pipe wear to establish and slide in the perforation to make fixed disk and joint groove screw-thread fit, make the fixed disk compress tightly the joint dish on the pincers body, and then improve the stability of being connected between oil pipe and the pincers body.

Optionally, the opening and closing assembly comprises a spring piece for opening and closing the oil outlet, the spring piece is arranged on one side of the clamp body close to the oil outlet, the spring piece is pressed on the clamp body, and the oil crusty pancake drives the spring piece to open the oil outlet.

By adopting the technical scheme, the elastic sheet is tightly pressed on the clamp body, so that the elastic sheet seals the oil outlet, oil is prevented from flowing out of the oil outlet as much as possible when lubrication is not needed, and the sealing performance of the oil injection cavity is improved. When the oil crusty pancake drives the oil to enter the oil injection cavity, the elastic sheet is pressed open by the oil, so that the oil is injected onto the oil cotton, and the convenience of injecting the oil into the oil cotton from the oil injection cavity is improved.

Optionally, an entering groove for the elastic sheet to enter is formed in the clamp body, the entering groove is mutually communicated with the oil outlet, and the depth of the entering groove is larger than the thickness of the elastic sheet.

Through adopting above-mentioned technical scheme, the shell fragment is in getting into the inslot, and makes the degree of depth that gets into the groove be greater than the thickness of shell fragment to the shell fragment deformation when punching press shell fragment for the oil provides deformation space, avoids the cotton shell fragment deformation that hinders of oil as far as possible, and then improves the simplicity that the shell fragment warp.

Optionally, the opening and closing assembly further comprises a sealing gasket, the sealing gasket is arranged on one side of the elastic sheet, close to the pliers body, a sealing groove for installing the sealing gasket is formed in the elastic sheet, and the thickness of the sealing gasket is larger than the depth of the sealing groove.

Through adopting above-mentioned technical scheme, when the shell fragment compresses tightly on the pincers body, make the shell fragment compress tightly sealed pad on the pincers body to make sealed gap between the sealed pincers body and the shell fragment of pad, avoid the oil to flow from the gap between the pincers body and the shell fragment as far as possible, and then improve the leakproofness between the pincers body and the shell fragment. The thickness of the sealing gasket is larger than the depth of the sealing groove, so that the sealing gasket protrudes out of the sealing groove to be abutted against the clamp body, and the purposes of sealing the elastic sheet and the clamp body are achieved.

Optionally, the opening and closing assembly further includes a first attracting magnet and a second attracting magnet, the first attracting magnet is arranged on one side of the elastic sheet, which is close to the pliers body, the second attracting magnet is arranged on one side of the pliers body, which is close to the first attracting magnet, the first attracting magnet and the second attracting magnet attract each other, attracting grooves are formed in the elastic sheet and the pliers body, the first attracting magnet is arranged in the attracting groove on the elastic sheet, and the second attracting magnet is arranged in the attracting groove on the pliers body.

Through adopting above-mentioned technical scheme, when the shell fragment compresses tightly the closed oil-out on the pincers body, make first actuation magnet and second actuation magnet with the shell fragment actuation on the pincers body, and then improve the stability of being connected between shell fragment and the pincers body. The first attracting magnet is arranged in the attracting groove on the elastic sheet, so that the installation position of the first attracting magnet is determined, and the stability of connection between the first attracting magnet and the elastic sheet is improved. The second attracting magnet is arranged in the attracting groove on the clamp body, so that the installation position of the second attracting magnet is determined, and the stability of connection between the second attracting magnet and the clamp body is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the clamp block and the clamp body clamp the oil cotton, the oil flows out from the oil cotton to the space between the clamp block and the clamp body, so that the positions of the clamp block and the clamp body are not required to be changed, lubrication can be carried out when the clamp body and the clamp block slide in the daily use process, and the oil lubrication convenience between the clamp body and the clamp block is improved;

2. the oil blocking layer is used for blocking the oil cotton vertically to one side of the base surface of the oil cotton and the clamping block, so that the oil is prevented from flowing out of the side edge of the oil cotton as much as possible, the lubricating effect of the oil cotton on the clamping block is poor, and the lubricating effect of the oil cotton is further improved;

3. the oil outlet is controlled to be closed by the opening and closing component, the oiling component is used for adding oil into the oil injection cavity through the oil inlet, so that the oil is stored in the oil injection cavity, and when the oil is required to be injected into the oil cotton, the opening and closing component is used for controlling the oil outlet to be opened and closed, so that the addition of the oil is completed, and the oil is more convenient to enter the oil cotton.

Drawings

Fig. 1 is a schematic structural diagram of a fixture oiling device of a hydraulic testing machine in an embodiment of the application.

Fig. 2 is an explosion schematic diagram of an oil crusty pancake, a fixed disc, a clamping disc, a clamp body, an opening and closing assembly, oil cotton and an oil blocking layer in the embodiment of the application.

Fig. 3 is a schematic cross-sectional view of an oil crusty pancake, a fixed disk, a clamping disk, a clamp body, an opening and closing assembly, an oil cotton and an oil blocking layer in an embodiment of the present application.

Fig. 4 is an enlarged schematic view of the portion a in fig. 3.

Reference numerals illustrate: 1. a clamp body; 11. a mounting groove; 12. an oil filling cavity; 1201. an oil inlet; 1202. an oil outlet; 13. a clamping groove; 14. entering a groove; 15. a suction groove; 2. clamping blocks; 3. cotton wool; 31. oil blocking layer; 4. a fueling assembly; 41. an oil crusty pancake; 42. an oil pipe; 43. a clamping disc; 44. a fixed plate; 4401. perforating; 5. an opening and closing assembly; 51. a spring plate; 52. a sealing gasket; 53. a first attracting magnet; 54. a second attracting magnet; 55. and (5) sealing the groove.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-4.

Referring to fig. 1 and 2, an embodiment of the application discloses a hydraulic testing machine fixture oiling device, which comprises a clamp body 1, a clamp block 2 and an oilcotton 3. The clamp body 1 is connected with the clamp block 2 in a sliding way. The oil cotton 3 can be made of polyurethane foam, oil for lubrication is adsorbed in the oil cotton 3, and the oil cotton 3 is arranged between the clamping block 2 and the clamp body 1. The pliers body 1 is provided with the mounting groove 11 for mounting the oil cotton 3, and the thickness of the oil cotton 3 is larger than the depth of the mounting groove 11, so that the oil cotton 3 protrudes out of the mounting groove 11, and the oil cotton 3 and the pliers body 1 are reinforced by using epoxy resin glue when necessary. When the clamp block 2 slides on the clamp body 1, the clamp block 2 and the clamp body 1 clamp the oil cotton 3, so that the oil in the oil cotton 3 is extruded, and the oil lubricates the clamp block 2 and the clamp body 1. Referring to fig. 3, the pliers body 1 is further provided with an oiling cavity 12 for injecting oil into the oil cotton 3, and the oiling cavity 12 is mutually communicated with the mounting groove 11.

Referring to fig. 2, the oil-blocking layer 31 is adhered to the oiled cotton 3. The oil blocking layer 31 may be made of plastic. The oil blocking layer 31 is positioned on one side of the oil cotton 3 perpendicular to the contact surface of the oil cotton 3 and the clamping block 2. The oil blocking layer 31 surrounds the periphery of the oil cotton 3, so that oil in the oil cotton 3 can only flow out to lubricate the clamping block 2 and the clamp body 1 through one side of the oil cotton 3, which is close to the clamping block 2, and the waste of the oil is reduced.

Referring to fig. 2 and 3, the oil filling chamber 12 further includes an oil inlet 1201 and an oil outlet 1202. The oil outlet 1202 is positioned on one side of the oiling cavity 12 near the mounting groove 11, the oil outlet 1202 is communicated with the mounting groove 11, and the oil outlet 1202 is used for injecting the oil stored in the oiling cavity 12 into the cotton wool 3. The oil inlet 1201 is located at an end of the oil-filling cavity 12 remote from the oil outlet 1202, and the oil inlet 1201 is used for storing oil into the oil-filling cavity 12. The clamp body 1 is provided with a oiling assembly 4. The oiling assembly 4 is located on one side of the clamp body 1 near the oil inlet 1201, and the oiling assembly 4 is used for feeding oil into the oil filling cavity 12. The opening and closing assembly 5 is arranged on the pliers body 1. The opening and closing assembly 5 is located at one side of the clamp body 1 near the oil outlet 1202, and the opening and closing assembly 5 is used for opening or closing the oil outlet 1202, so that when the opening and closing assembly 5 closes the oil outlet 1202, oil is sealed in the oil filling cavity 12, and when the opening and closing assembly 5 opens the oil outlet 1202, the oil is filled into the cotton wool 3 through the oil outlet 1202.

Referring to fig. 2 and 3, the oiling assembly 4 includes an oil crusty pancake 41, an oil pipe 42, a clamping disk 43, and a fixing disk 44. The oil crusty pancake 41 is made of rubber, oil is stored in the oil crusty pancake 41, and the oil crusty pancake 41 is arranged on one side of the clamp body 1, which is close to the oil inlet 1201. The oil pipe 42 is made of rubber, and the oil pipe 42 is integrally arranged on one side of the oil crusty pancake 41, which is close to the oil inlet 1201. The oil pipe 42 is inserted into the oil inlet 1201, so that the oil pipe 42 communicates the oil crusty pancake 41 with the oil filling cavity 12, and the oil crusty pancake 41 is extruded, so that the oil in the oil crusty pancake 41 enters the oil filling cavity 12 through the oil pipe 42.

Referring to fig. 2 and 3, a catch 43 is mounted at the end of the oil pipe 42 adjacent to the clamp body 1. The clamp body 1 is provided with a clamping groove 13 for clamping the clamping disc 43, and the clamping groove 13 is communicated with the oil inlet 1201. When the oil pipe 42 is inserted into the oil inlet 1201, the clamping disc 43 is clamped in the clamping groove 13, so that the clamping disc 43 limits the oil pipe 42 in the oil inlet 1201 along the insertion direction of the oil pipe 42.

Referring to fig. 2 and 3, a fixed disc 44 is mounted at an end of the oil pipe 42 adjacent to the catch disc 43. The fixed disk 44 is provided with a through hole 4401 for the oil supply pipe 42 to pass through and slide. The fixed disk 44 is in threaded engagement with the clamping groove 13. After the clamping disc 43 is clamped in the clamping groove 13, the fixed disc 44 slides on the oil pipe 42 to be close to the clamping disc 43, so that the fixed disc 44 is in threaded fit with the clamping groove 13, the fixed disc 44 is pressed on the clamping disc 43, and the clamping disc 43 is limited in the clamping groove 13.

Referring to fig. 3 and 4, the opening and closing assembly 5 includes a spring plate 51, a sealing pad 52, a first attracting magnet 53 and a second attracting magnet 54. The elastic sheet 51 is welded to one side of the clamp body 1 close to the oil outlet 1202, and the elastic sheet 51 is pressed on the clamp body 1, so that the oil outlet 1202 is closed. When the oil crusty pancake 41 is extruded to enable the oil to enter the oil injection cavity 12, the oil is extruded to the elastic sheet 51, the elastic sheet 51 is far away from the clamp body 1, and therefore the oil outlet 1202 is opened, and the oil is injected into the oil cotton 3 through the oil outlet 1202. After the pressure of the oil is reduced, the elastic sheet 51 rebounds to be pressed on the oil outlet 1202 again, so that the oil outlet 1202 is closed. The pliers body 1 is provided with an entering groove 14 for the elastic sheet 51 to enter, and the entering groove 14 is communicated with the oil outlet 1202. The depth of the entering groove 14 is larger than the thickness of the elastic sheet 51, so that the entering groove 14 provides a deformation space for the elastic sheet 51, and the phenomenon that the oil cotton 3 blocks the opening of the elastic sheet 51 is avoided as much as possible.

Referring to fig. 3 and 4, the gasket 52 is made of rubber, and the gasket 52 is mounted on one side of the elastic sheet 51 near the caliper body 1. The elastic sheet 51 is provided with a sealing groove 55 for installing the sealing gasket 52, and the sealing gasket 52 and the elastic sheet 51 are reinforced by epoxy resin glue when necessary. The thickness of the gasket 52 is greater than the depth of the seal groove 55 so that the gasket 52 protrudes from the seal groove 55. When the elastic sheet 51 is pressed against the clamp body 1, the gasket 52 is made to seal the gap between the elastic sheet 51 and the clamp body 1, so that the oil is prevented from flowing out of the gap between the elastic sheet 51 and the clamp body 1 as much as possible.

Referring to fig. 3 and 4, the first attracting magnet 53 is mounted on the side of the elastic piece 51 near the caliper body 1. The elastic sheet 51 is provided with an engaging groove 15 for installing the first engaging magnet 53, and if necessary, the first engaging magnet 53 and the elastic sheet 51 are reinforced by epoxy glue. The second attracting magnet 54 is mounted on the side of the caliper body 1 near the first attracting magnet 53. The second attracting magnet 54 is opposite in polarity to the side of the first attracting magnet 53 that is close to each other. The clamp body 1 is also provided with a suction groove 15 for installing the second suction magnet 54, and the clamp body 1 and the second suction magnet 54 are reinforced by epoxy resin glue when necessary. When the elastic piece 51 is pressed on the pliers body 1, the first attracting magnet 53 and the second attracting magnet 54 attract the elastic piece 51 on the pliers body 1, so that the elastic piece 51 is more stable when pressed on the pliers body 1.

The implementation principle of the hydraulic testing machine clamp oiling device is as follows:

when the clamp splice 2 slides on the clamp body 1, the clamp splice 2 and the clamp body 1 squeeze the oil cotton 3, so that the oil in the oil cotton 3 is squeezed between the clamp splice 2 and the clamp body 1, the clamp body 1 and the clamp splice 2 are lubricated by the oil, the oil blocking layer 31 shields the oil flowing out of the periphery of the oil cotton 3, and the waste of the oil is avoided.

The oil crusty pancake 41 is extruded, oil in the oil crusty pancake 41 sequentially enters the oil injection cavity 12 through the oil pipe 42 and the oil inlet 1201, pressure is applied to the elastic sheet 51 by the oil, the elastic sheet 51 is enabled to open the oil outlet 1202 away from the clamp body 1 in the entering groove 14, so that the oil is injected into the oil cotton 3 through the oil outlet 1202, when the pressure of the oil is reduced, the elastic sheet 51 is rebound and tightly pressed on the clamp body 1 to seal the oil outlet 1202, the sealing gasket 52 is tightly attached to the clamp body 1, the oil is prevented from flowing out of a gap between the clamp body 1 and the elastic sheet 51 as much as possible, the elastic sheet 51 is attracted to the clamp body 1 by the first attracting magnet 53 and the second attracting magnet 54, and the elastic sheet 51 is more stable when the oil outlet 1202 is sealed by the elastic sheet 51.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a hydraulic test machine anchor clamps device of oiling, includes the clamp body (1) and slides clamp splice (2) of being connected with the clamp body (1), its characterized in that: one side that pincers body (1) are close to clamp splice (2) is provided with oil cotton (3) that are used for lubricated pincers body (1) and clamp splice (2), pincers body (1) press from both sides tight oil cotton (3) with clamp splice (2), install mounting groove (11) that supply oil cotton (3) installed have been seted up on pincers body (1), the thickness of oil cotton (3) is greater than the degree of depth of mounting groove (11), set up on pincers body (1) be used for with oil injection oiling chamber (12) on oil cotton (3), oiling chamber (12) are linked together with mounting groove (11).

2. The hydraulic tester clamp oiling device according to claim 1, wherein: the oil blocking layer (31) is arranged on the oil cotton (3), and the oil blocking layer (31) is positioned on one side of the oil cotton (3) perpendicular to the contact surface of the oil cotton (3) and the clamping block (2).

3. The hydraulic tester clamp oiling device according to claim 1, wherein: the oiling cavity (12) comprises an oil inlet (1201) and an oil outlet (1202), the oil outlet (1202) is located on one side, close to the mounting groove (11), of the oiling cavity (12), the oil inlet (1201) is located on one side, far away from the oil outlet (1202), of the oiling cavity (12), an oiling component (4) used for oiling is arranged on one side, close to the oil inlet (1201), of the pliers body (1), and an opening and closing component (5) used for opening and closing the oil outlet (1202) is arranged on one side, close to the oil outlet (1202), of the pliers body (1).

4. A hydraulic tester clamp oiling device according to claim 3, characterized in that: the oiling assembly (4) comprises an oil crusty pancake (41) for storing oil and an oil pipe (42) for oiling, the oil pipe (42) is inserted into the oil inlet (1201), the oil pipe (42) is communicated with the oil crusty pancake (41) and the oiling cavity (12), and the oil crusty pancake (41) drives oil to enter the oiling cavity (12) through the oil pipe (42).

5. The hydraulic testing machine clamp oiling device according to claim 4, wherein: the oiling assembly (4) further comprises a clamping disc (43), the clamping disc (43) is arranged on one side, close to the clamp body (1), of the oil pipe (42), a clamping groove (13) for clamping the clamping disc (43) is formed in the clamp body (1), and the clamping groove (13) is communicated with the oil inlet (1201).

6. The hydraulic testing machine clamp oiling device according to claim 5, wherein: the oiling assembly (4) further comprises a fixing disc (44), a through hole (4401) for the oil supply pipe (42) to penetrate is formed in the fixing disc (44), the fixing disc (44) is in threaded fit with the clamping groove (13), and the fixing disc (44) is tightly pressed on the clamping disc (43).

7. The hydraulic testing machine clamp oiling device according to claim 4, wherein: the opening and closing assembly (5) comprises a spring piece (51) for opening and closing the oil outlet (1202), the spring piece (51) is arranged on one side, close to the oil outlet (1202), of the clamp body (1), the spring piece (51) is tightly pressed on the clamp body (1), and the oil crusty pancake (41) drives the spring piece (51) to open the oil outlet (1202).

8. The hydraulic tester clamp oiling device according to claim 7, wherein: an entering groove (14) for the elastic sheet (51) to enter is formed in the clamp body (1), the entering groove (14) is communicated with the oil outlet (1202), and the depth of the entering groove (14) is larger than the thickness of the elastic sheet (51).

9. The hydraulic tester clamp oiling device according to claim 7, wherein: the opening and closing assembly (5) further comprises a sealing gasket (52), the sealing gasket (52) is arranged on one side, close to the clamp body (1), of the elastic sheet (51), a sealing groove (55) for installing the sealing gasket (52) is formed in the elastic sheet (51), and the thickness of the sealing gasket (52) is larger than the depth of the sealing groove (55).

10. The hydraulic tester clamp oiling device according to claim 7, wherein: the opening and closing assembly (5) further comprises a first attracting magnet (53) and a second attracting magnet (54), the first attracting magnet (53) is arranged on one side, close to the clamp body (1), of the elastic sheet (51), the second attracting magnet (54) is arranged on one side, close to the first attracting magnet (53), of the clamp body (1), the first attracting magnet (53) and the second attracting magnet (54) attract each other, attracting grooves (15) are formed in the elastic sheet (51) and the clamp body (1), the first attracting magnet (53) is arranged in the attracting grooves (15) in the elastic sheet (51), and the second attracting magnet (54) is arranged in the attracting grooves (15) in the clamp body (1).