Multi-directional Performance Testing Device for Hydrostatic Slider

Abstract

The present invention relates to the technical field of performance testing of hydrostatic sliders, and provides a multi-direction performance testing device for hydrostatic sliders, which includes a workbench, a base, a support frame and columns. The base is fixedly arranged on the workbench; the support frame is fixedly arranged on the workbench; the columns are fixedly arranged on the base, and the columns divide both sides of the base into a horizontal testing station and a lateral testing station. The horizontal testing station is provided with a horizontal testing component for horizontally installing the hydrostatic slider to be tested, and the lateral testing station is provided with a lateral testing component for vertically installing the hydrostatic slider to be tested; a pressing component is slidably arranged on the support frame, and the pressing component can be switched between the horizontal testing station and the lateral testing station. By respectively arranging horizontal and lateral detection stations on the base with the columns as the division, the detection of different directions of the hydrostatic slider is realized simultaneously, the problem of difficult simultaneous detection of different surfaces and different oil cavity numbers is solved, and the detection efficiency and detection accuracy are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of performance testing of hydrostatic sliders, and in particular to a multi-directional performance testing device for hydrostatic sliders. Background Art

[0002] The hydrostatic slider technology is widely applied to precision and ultra-precision machine tools and other precision detection fields. Stiffness and load-carrying capacity are its main performance indicators. Therefore, the detection of the stiffness and load-carrying capacity of the hydrostatic slider is particularly important.

[0003] In some typical scenarios, when the hydrostatic slider is applied to a horizontal guide rail, such as the horizontal axis of a lathe or a grinder, the upper and lower oil cavities of the slider are mainly subjected to the bearing pressure of the spindle or workpiece gravity, and the lateral oil cavity is subjected to the bearing pressure of the cutting force. Therefore, higher requirements are often imposed on the stiffness and load-carrying performance of the horizontal oil cavity of the slider. When the hydrostatic slider is applied to a lateral guide rail, such as the lateral axis of some five-axis machine tools or vertical lathes, at this time, the lateral oil cavity of the slider mainly bears the load, so higher requirements are imposed on its lateral stiffness and load-carrying capacity.

[0004] In the related art, attention is often only paid to the performance detection of the horizontal oil cavity, and the effective performance test of the lateral oil cavity is lacking. Summary of the Invention

[0005] The present invention provides a multi-directional performance testing device for a hydrostatic slider to solve the defects in the prior art that it is difficult to simultaneously test multiple oil cavities and the detection accuracy is low.

[0006] The present invention provides a multi-directional performance testing device for a hydrostatic slider, including: a workbench, a base, a support frame and a column. The base is fixedly arranged on the tabletop of the workbench; the support frame is fixedly arranged on the tabletop of the workbench, and at least a part of the support frame is located above the base; the column is fixedly arranged on the base, and the column divides both sides of the base into a horizontal testing station and a lateral testing station. The horizontal testing station is provided with a horizontal testing component for horizontally installing the hydrostatic slider to be tested, and the horizontal testing component is configured to test the load-carrying capacity of the horizontal oil cavity of the hydrostatic slider. The lateral testing station is provided with a lateral testing component for vertically installing the hydrostatic slider to be tested, and the lateral testing component is configured to test the load-carrying capacity of the lateral oil cavity of the hydrostatic slider; wherein, a pressing component is slidably arranged on the support frame above the base, and the base and the support frame are arranged in the same direction so that the pressing component can be switched between the horizontal testing station and the lateral testing station.

[0007] According to the multi-directional performance testing device for a hydrostatic slider provided by the present invention, the horizontal testing assembly includes: a first throttle valve, a first adjusting block, a first pressing plate, and a first loading block. The first throttle valve is provided at both ends of the hydrostatic slider and is communicated with each oil cavity of the hydrostatic slider. The first adjusting block is provided on the base and is spaced apart from the column, so that an installation gap is formed between the column and the first adjusting block. The hydrostatic slider is provided in the installation gap, so that the side surfaces on both sides of the hydrostatic slider are pressed by the column and the first adjusting block. The first pressing plate is provided on the top of the first adjusting block, and at least a part of the first pressing plate is located on the horizontal testing oil cavity of the surface to be tested of the hydrostatic slider. A first flow path is constructed in the first pressing plate. The first flow path is communicated with the horizontal testing oil cavity, and a hydraulic sensor is provided at the outlet position of the first flow path. The first loading block is provided on the surface to be tested of the hydrostatic slider. A second flow path is constructed in the first loading block. The second flow path is used to input pressurized liquid into the first throttle valve. Wherein, when performing the loading force test, the pressurized liquid is input from the first loading block, enters the hydrostatic slider to be tested through the first throttle valve, and enters the first flow path from the horizontal testing oil cavity to measure the liquid pressure.

[0008] According to the multi-directional performance testing device for a hydrostatic slider provided by the present invention, the horizontal testing assembly further includes a first detection block. The first detection block is connected to the base. The first detection block is located on the base on one side of the horizontal testing station. A detection sensor is provided on the first detection block. Wherein, a third flow path is constructed in the base. The head port of the third flow path is located at the contact surface position between the hydrostatic slider and the base. The tail port of the third flow path is communicated with the first detection block.

[0009] According to the multi-directional performance testing device for a hydrostatic slider provided by the present invention, the first adjusting block is slidably connected to the base, and a locking portion is provided on the first adjusting block.

[0010] According to the multi-directional performance testing device for a hydrostatic slider provided by the present invention, at least one oil return groove is formed on the side wall of the first pressing plate close to the first loading block. The oil return groove is arranged along the length direction of the first pressing plate.

[0011] According to the multi-directional performance testing device for a hydrostatic slider provided by the present invention, the lateral testing assembly includes: a second throttle valve, a second adjusting block, a second pressing plate, and a second loading block. The second throttle valve is arranged at both ends of the hydrostatic slider and is communicated with each oil cavity of the hydrostatic slider. The second adjusting block is arranged on the side wall of the column. There is an assembly spacing between the second adjusting block and the upper surface of the base. The hydrostatic slider is arranged within the assembly spacing, so that the lateral oil cavity to be tested on one side of the hydrostatic slider contacts the second adjusting block, and the other side of the hydrostatic slider contacts the upper surface of the base. The second pressing plate is arranged on the base and is spaced from the column. At least a part of the second pressing plate contacts one surface of the hydrostatic slider, and the other surface of the hydrostatic slider contacts the side surface of the column. The second loading block is arranged on the hydrostatic slider. The second loading block and the second pressing plate are located on the same surface of the hydrostatic slider. A fifth flow path is constructed in the second loading block, and the fifth flow path is used to input pressurized liquid into the second throttle valve. Wherein, a fourth flow path is constructed in the second adjusting block, and the fourth flow path is communicated with the lateral oil cavity to be tested. A hydraulic sensor is arranged at the outlet position of the fourth flow path. When performing the loading force test, the pressurized liquid is input from the second loading block, enters the hydrostatic slider to be tested through the second throttle valve, and enters the fifth flow path from the lateral oil cavity to be tested to measure the liquid pressure.

[0012] According to the multi-directional performance testing device for a hydrostatic slider provided by the present invention, the lateral testing assembly further includes a second detection block. The second detection block is connected to the base. The second detection block is arranged on the base on one side of the lateral testing station. A detection sensor is arranged on the second detection block. Wherein, a sixth flow path is constructed in the base. The head port of the sixth flow path is located at the contact surface position between the hydrostatic slider and the base. The tail port of the sixth flow path is communicated with the second detection block.

[0013] According to the multi-directional performance testing device for a hydrostatic slider provided by the present invention, the second adjusting block is slidably connected to the column, and a locking portion is arranged on the second adjusting block. At least one oil return groove is formed on the side wall of the second pressing plate close to the second loading block, and the oil return groove is arranged along the length direction of the second pressing plate.

[0014] According to the multi-directional performance testing device for a hydrostatic slider provided by the present invention, it further includes a base. The base is fixedly connected within the base. A baffle is connected around the edge of the base to form a liquid accumulation pool within the base.

[0015] According to the multi-directional performance testing device for a hydrostatic slider provided by the present invention, an adjustment bracket is provided on the column. The adjustment bracket has a first connection part and a second connection part. A long slot is provided on the first connection part, and a bolt passes through the long slot to connect the first connection part to the column. A ball plunger is provided on the second connection part, and the ball plunger is used to contact and abut against the hydrostatic slider.

[0016] A multi-directional performance testing device for a hydrostatic slider provided by the present invention realizes the simultaneous detection of the horizontal and lateral directions of the hydrostatic slider by respectively arranging horizontal and lateral detection stations on the base with the column as the division, solves the problem of difficult simultaneous detection of different surfaces and different oil cavity numbers, and improves the detection efficiency and detection accuracy. That is, compared with the conventional testing device, the technical solution of the present invention can provide not only horizontal testing but also lateral testing to enrich the testing items, and the overall testing accuracy can be improved through the combination of lateral testing and horizontal testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic structural diagram of the multi-directional performance testing device provided by the present invention.

[0019] Figure 2 It is a schematic structural diagram of the testing part in the multi-directional performance testing device provided by the present invention.

[0020] Figure 3 It is a schematic structural diagram of the hydrostatic slider in the multi-directional performance testing device provided by the present invention.

[0021] Figure 4 It is a schematic structural diagram of the support frame in the multi-directional performance testing device provided by the present invention.

[0022] Figure 5 It is a schematic cross-sectional structural diagram of the multi-directional performance testing device provided by the present invention.

[0023] Figure 6 It is a schematic structural diagram of one end of the multi-directional performance testing device provided by the present invention connected to the adjustment bracket.

[0024] Figure 7 It is a schematic structural diagram of the other end of the hydrostatic slider in the multi-directional performance testing device provided by the present invention.

[0025] Reference Signs:

[0026] 1. Workbench; 11. Magnetic base; 2. Base; 3. Base; 31. Third flow path; 4. Support frame; 40. Pressing assembly; 401. Sliding member; 402. Hydraulic cylinder; 403. Locking portion; 404. Contact ball; 5. Column; 51. Adjusting bracket; 6. Horizontal test station; 61. First adjusting block; 62. First pressing plate; 621. First flow path; 622. Oil return groove; 63. First loading block; 631. First oil inlet; 64. First detection block; 65. First throttle valve; 7. Lateral test station; 71. Second adjusting block; 72. Second pressing plate; 73. Second loading block; 731. Second oil inlet; 74. Second detection block; 75. Second throttle valve; 8. Baffle; 81. Oil return port; 82. Liquid accumulation pool; 9. Hydraulic sensor; 10. Static pressure slider to be measured. Detailed Embodiment

[0027] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0028] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings. These are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the embodiments of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0029] In the description of the embodiments of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "coupled" 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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0030] In the embodiments of the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the horizontal height of the first feature is less than that of the second feature.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples.

[0032] The following is combined with Figures 1-5A multi-directional performance testing device for a hydrostatic slider of the present invention is described, which includes a workbench 1, a base 3, a support frame 4 and a column 5. The base 3 is fixedly arranged on the tabletop of the workbench 1; the support frame 4 is fixedly arranged on the tabletop of the workbench 1, and at least a part of the support frame 4 is located above the base 3; the column 5 is fixedly arranged on the base 3, and the column 5 divides both sides of the base 3 into a horizontal testing station 6 and a lateral testing station 7. The horizontal testing station 6 is provided with a horizontal testing component for horizontally installing the hydrostatic slider 10 to be tested, and the horizontal testing component is configured to test the bearing capacity of the horizontal oil cavity of the hydrostatic slider. The lateral testing station 7 is provided with a lateral testing component for vertically installing the hydrostatic slider 10 to be tested, and the lateral testing component is configured to test the bearing capacity of the lateral oil cavity of the hydrostatic slider; wherein, a pressing component 40 is slidably arranged on the support frame 4 above the base 3, and the base 3 and the support frame 4 are arranged in the same direction, so that the pressing component 40 can be switched between the horizontal testing station 6 and the lateral testing station 7. The hydrostatic slider is a rectangular block structure. Usually, the oil cavities of the multi-oil cavity hydrostatic slider are distributed on the upper and lower surfaces and both sides. In this embodiment, the base 3 is divided into horizontal and lateral testing stations by the column 5, so that the simultaneous horizontal and lateral testing of the workpiece can be realized on the same testing device, improving the detection efficiency and solving the problem that it is difficult to realize the simultaneous testing of multiple surfaces in the related art. And through the sliding arrangement of the pressing component 40, the application of force can be realized on both the horizontal testing station 6 and the lateral testing station 7, and thus the stiffness testing of the hydrostatic slider can be realized. That is, the solution in this embodiment can not only realize the simultaneous testing of different surfaces of the workpiece, but also realize the stiffness performance testing, enriching the functions of the device.

[0033] It can be understood that in the actual use process of the hydrostatic slider, there are scenarios of horizontal installation and vertical installation. In the related art, it is difficult to measure different surfaces when testing the multi-oil cavity hydrostatic slider. In this embodiment, the hydrostatic slider is installed in different installation postures on both sides (that is, one side is horizontally installed and the other side is vertically installed). Through this installation method, the simultaneous testing of different surfaces of the hydrostatic slider can be realized, saving the disassembly time required to measure one surface and then disassemble and install to measure the other surface, improving the testing efficiency, and being able to accurately detect the performance of the side oil cavity of the slider in the vertical use mode and the horizontal use mode, and can more accurately simulate the actual use conditions.

[0034] During specific testing, such as Figure 3As shown, when the hydrostatic slider has four oil cavities, that is, the upper and lower surfaces of the hydrostatic slider have oil cavities, and the side wall surfaces of the hydrostatic slider have oil cavities. In this embodiment, the simultaneous testing of the upper and lower oil cavities can be achieved through the horizontal testing station 6, and the simultaneous testing of the two side oil cavities can be achieved through the lateral testing station 7. Thus, after the simultaneous testing, the installation can be exchanged, so as to realize the testing of each oil cavity on each hydrostatic slider, greatly reducing the testing time. Moreover, the horizontal testing station 6 and the lateral testing station 7 are located in the same device, which is convenient for alternate installation during testing and improves the testing efficiency.

[0035] When specifically set, as Figure 1 , Figure 4 shown, the overall structure of the support frame 4 is a door frame structure, the cross beam at its top extends along the first direction X, and the base 3 is also arranged towards the first direction X. This makes both the horizontal testing station 6 and the lateral testing station 7 located below the cross beam. The pressing assembly 40 is slidably connected to the cross beam, and the pressing assembly 40 is used to apply a force to the hydrostatic slider to be tested to detect the stiffness of the hydrostatic slider. The setting of the pressing assembly 40 can move above the horizontal testing station 6 and the lateral testing station 7, so that the stiffness detection can be completed at different stations when needed, further enriching the testing function. Moreover, different pressures can be applied through the pressing assembly 40, enabling the device to realize the performance of the hydrostatic slider such as bearing capacity, stiffness, temperature, and flow rate under different pressures.

[0036] According to an embodiment provided by the present invention, as Figure 2As shown in the figure, the horizontal test component includes a first throttle valve 65, a first adjusting block 61, a first pressing plate 62, and a first loading block 63. The first throttle valve 65 is arranged at both ends of the hydrostatic slider and is communicated with each oil cavity of the hydrostatic slider. The first adjusting block 61 is arranged on the base 3 and is spaced from the column 5, so that an installation gap is formed between the column 5 and the first adjusting block 61. The hydrostatic slider is arranged in the installation gap, so that the side surfaces on both sides of the hydrostatic slider are pressed by the column 5 and the first adjusting block 61. The first pressing plate 62 is arranged on the top of the first adjusting block 61, and at least a part of the first pressing plate 62 is located on the horizontal test oil cavity of the surface to be tested of the hydrostatic slider. A first flow path 621 is constructed in the first pressing plate 62. The first flow path 621 is communicated with the horizontal test oil cavity, and a hydraulic sensor 9 is arranged at the outlet position of the first flow path 621. The first loading block 63 is arranged on the surface to be tested of the hydrostatic slider. A second flow path is constructed in the first loading block 63. The second flow path is used to input the pressurized liquid into the first throttle valve 65. Wherein, when performing the loading force test, the pressurized liquid is input by the first loading block 63, enters the hydrostatic slider 10 to be tested through the first throttle valve 65, and enters the first flow path 621 from the horizontal test oil cavity to measure the liquid pressure. In this embodiment, by contacting the first pressing plate 62 with the horizontal test oil cavity, the oil pressure lead of the horizontal oil cavity can be realized, and the bearing capacity test can be realized by directly measuring through the hydraulic sensor 9.

[0037] It can be understood that if the hydrostatic slider has four oil cavities, the oil cavities on both side surfaces of the hydrostatic slider need to be pressed when performing the horizontal oil cavity test. In this embodiment, the first adjusting block 61 and the column 5 respectively realize the pressing of the oil cavities on both sides of the hydrostatic slider, and only the horizontal oil cavity is tested.

[0038] In a further embodiment, a hydraulic sensor 9 is arranged on the first adjusting block 61, and a seventh flow path is opened in the first adjusting block 61. One port of the seventh flow path is communicated with the lateral oil cavity of the hydrostatic slider, and the other port of the seventh flow path is connected with the hydraulic sensor 9, so as to realize the test of the bearing capacity of the lateral oil cavity of the hydrostatic slider at the horizontal test station 6. Similarly, a hydraulic sensor 9 is arranged on the column 5, and an eighth flow path is constructed inside the column 5. One port of the eighth flow path is communicated with the other lateral oil cavity of the hydrostatic slider, and the other port of the eighth flow path is connected with the hydraulic sensor 9, so as to realize the test of the bearing capacity of the other lateral oil cavity of the hydrostatic slider. That is, in this embodiment, when the hydrostatic slider is a four-oil cavity slider, the horizontal and lateral simultaneous tests can be realized at the horizontal test station 6, further improving the test efficiency.

[0039] According to the specific embodiments provided by the present invention, such as Figure 5As shown, the horizontal test component further includes a first detection block 64. The first detection block 64 is connected to the base 3 and is located on the base 3 on one side of the horizontal test station 6. A detection sensor is provided on the first detection block 64. Among them, a third flow path 31 is constructed in the base 3. The head port of the third flow path 31 is located at the contact surface position between the hydrostatic slider and the base 3, and the tail port of the third flow path 31 communicates with the first detection block 64. In this embodiment, the bearing capacity of the oil cavity on the upper surface of the hydrostatic slider is tested through the hydraulic sensor 9 on the first pressing block, and the liquid in the oil cavity on the lower surface of the hydrostatic slider enters the first detection block 64 through the third flow path 31, and the measurement is realized through the detection sensor on the first detection block 64.

[0040] It can be understood that generally, both the upper and lower surfaces of the hydrostatic slider have oil cavities, and the oil cavities on the upper and lower surfaces can be tested simultaneously at the horizontal test station 6. Of course, as described above, by respectively arranging flow paths and the hydraulic sensor 9 on the first adjusting block 61 and the column 5, the testing of the oil cavities on both sides can be realized.

[0041] When specifically setting, the detection sensor can be one or more of the hydraulic sensor 9, temperature sensor, and flow sensor, and they are matched according to design requirements.

[0042] During specific testing, the pressing component 40 moves above the horizontal test station 6, and then the pressing component 40 applies pressure to the first loading block 63, so as to realize the stiffness test and be able to perform performance tests such as bearing capacity, temperature, and flow at different pressures. Specifically, the pressurized oil fluid is output from the hydraulic station, enters the first loading block 63 through the first oil inlet 631 on the first loading block 63, then enters the first throttle valve 65 through the flow path in the first loading block 63, enters the hydrostatic slider to be tested through the first throttle valve 65, and then oil films are formed at each oil cavity. Among them, the oil cavities in the horizontal direction (upper and lower surfaces) are respectively connected to the detection sensors (one of the hydraulic sensor 9, temperature sensor, and flow sensor) through the first pressing plate 62 or the first detection block 64, so as to realize the measurement of bearing capacity, temperature, and flow.

[0043] In specific applications, such as Figure 4As shown, the pressure - applying assembly 40 includes a hydraulic cylinder 402, a sliding member 401, a locking portion 403, and a contact ball 404. The sliding member 401 is slidably connected to the support frame 4. The hydraulic cylinder 402 is connected to the sliding member 401. The locking portion 403 is provided on the sliding member 401 to lock the sliding member 401 when it reaches a predetermined position. The contact ball 404 is connected to the piston rod of the hydraulic cylinder 402 so that when a force is applied, it is realized through the contact of the contact ball 404 with the target. Specifically, when a force needs to be applied, the piston rod is driven to extend by the hydraulic cylinder 402, and the contact ball 404 is made to contact the first loading block 63 to apply pressure to the hydrostatic slider. Then, a dial indicator is used to measure the surface of the slider to detect the displacement of the slider, thereby realizing the detection of stiffness.

[0044] Specifically, the first adjusting block 61 is slidably connected to the base 3, and a locking portion is provided on the first adjusting block 61. For hydrostatic sliders of different specifications, the adjustment of the installation gap size can be realized by the sliding of the first adjusting block 61, so that the first adjusting block 61 can still closely adhere to one side of the hydrostatic slider in different specifications.

[0045] Specifically, a slide rail (not shown in the figure) is provided on the base 3. The first adjusting block 61 is connected to the slide rail, and when it slides to a specified position, the first adjusting block 61 is stably located at the specified position through the locking portion.

[0046] As Figure 5 shown, in a specific embodiment, at least one oil - return groove 622 is formed on the side wall of the first pressing plate 62 close to the first loading block 63. The oil - return groove 622 is arranged along the length direction of the first pressing plate 62. There is an oil - film gap between the first pressing plate 62 and the contact oil cavity, and the oil will overflow from the oil - film gap and flow to the bolt hole or other positions, which will affect the test accuracy. In this example, the oil - return groove 622 is used to prevent the flow of oil, so that the oil flows out through both ends of the oil - return groove 622.

[0047] Specifically, a plurality of oil - return grooves 622 are provided, and the plurality of oil - return grooves 622 are arranged at intervals. The setting of the plurality of oil - return grooves 622 can improve the effect of preventing oil spillage.

[0048] According to an embodiment provided by the present invention, as Figure 2As shown in the figure, the lateral test component includes a second throttle valve 75, a second adjusting block 71, a second pressing plate 72 and a second loading block 73. The second throttle valve 75 is arranged at both ends of the hydrostatic slider and is communicated with each oil cavity of the hydrostatic slider. The second adjusting block 71 is arranged on the side wall of the column 5. There is an assembly spacing between the second adjusting block 71 and the upper surface of the base 3. The hydrostatic slider is arranged within the assembly spacing so that the lateral oil cavity to be tested on one side of the hydrostatic slider contacts the second adjusting block 71, and the other side of the hydrostatic slider contacts the upper surface of the base 3. The second pressing plate 72 is arranged on the base 3 and is spaced from the column 5. At least a part of the second pressing plate 72 contacts one surface of the hydrostatic slider, and the other surface of the hydrostatic slider contacts the side wall of the column 5. The second loading block 73 is arranged on the hydrostatic slider. The second loading block 73 and the second pressing plate 72 are located on the same surface of the hydrostatic slider. A fifth flow path is constructed in the second loading block 73, and the fifth flow path is used to input pressurized liquid into the second throttle valve 75. Wherein, a fourth flow path is constructed in the second adjusting block 71, and the fourth flow path is communicated with the lateral oil cavity to be tested. A hydraulic sensor 9 is arranged at the outlet position of the fourth flow path. When performing the loading force test, the pressurized liquid is input from the second loading block 73, enters the hydrostatic slider to be tested through the second throttle valve 75, and enters the fifth flow path from the lateral oil cavity to be tested to measure the liquid pressure. In this embodiment, by contacting the second adjusting block 71 with the lateral oil cavity to be tested, the oil pressure introduction of the lateral oil cavity can be realized, and it can be obtained by the direct measurement method of the hydraulic sensor 9, so as to realize the bearing capacity test.

[0049] During the specific test, as Figure 2 , Figure 6 , Figure 7 shown, the pressing component 40 is moved to above the lateral test station 7, and then the second loading block 73 is pressurized by the pressing component 40, so that the stiffness test can be realized, and the performance tests such as bearing capacity temperature and flow rate can be realized under different pressures. Specifically, the pressurized oil liquid is output from the hydraulic station, enters the second loading block 73 through the second oil inlet 731 on the second loading block 73, then enters the second throttle valve 75 through the flow path in the second loading block 73, enters the hydrostatic slider to be tested through the second throttle valve 75, and then oil films are formed at each oil cavity. Among them, the oil cavities on the lateral (left and right sides) are respectively connected to the detected sensors (one of the hydraulic sensor 9, temperature sensor, and flow sensor) through the second adjusting block 71 or the base 3, so as to realize the measurement of the bearing capacity, temperature and flow rate. At this time, the oil cavities in the horizontal direction (upper and lower surfaces) are pressed by the second pressing plate 72 and the side wall surface of the column 5.

[0050] It can be understood that if the hydrostatic slider has four oil cavities, when performing the lateral oil cavity test, it is necessary to press the oil cavities on the horizontal two sides of the hydrostatic slider. In this embodiment, the second pressing plate 72 and the column 5 are respectively used to press the oil cavities on the horizontal two sides of the hydrostatic slider, and only the lateral oil cavity is tested.

[0051] In a further embodiment, a hydraulic sensor 9 is provided on the second pressing plate 72, and a ninth flow path is opened in the second pressing plate 72. One port of the ninth flow path is communicated with the upper surface oil cavity of the hydrostatic slider, and the other port of the ninth flow path is connected to the hydraulic sensor 9, so as to realize the test of the bearing capacity of the horizontal oil cavity (upper surface oil cavity) of the hydrostatic slider at the lateral test station 7. Similarly, another hydraulic sensor 9 is provided on the column 5, and a tenth flow path is constructed inside the column 5. One port of the tenth flow path is communicated with the lower surface oil cavity of the hydrostatic slider, and the other port of the tenth flow path is connected to the hydraulic sensor 9, so as to realize the test of the bearing capacity of another horizontal oil cavity (lower surface oil cavity) of the hydrostatic slider. That is, in this embodiment, when the hydrostatic slider is a four-oil cavity slider, the horizontal and lateral tests can be simultaneously realized at the lateral test station 7, further improving the test efficiency. And as can be seen from the above, in this embodiment, the horizontal and lateral methods can simulate the real use scenario, so that the test effect is closer to the real use scenario and the test accuracy is improved.

[0052] According to the embodiment provided by the present invention, the lateral test assembly further includes a second detection block 74. The second detection block 74 is connected to the base 3. The second detection block 74 is located on the base 3 on one side of the lateral test station 7, and a detection sensor is provided on the second detection block 74. Among them, a sixth flow path is constructed in the base 3. The head port of the sixth flow path is located at the contact surface position between the hydrostatic slider and the base 3, and the tail port of the sixth flow path is communicated with the second detection block 74. In this embodiment, the bearing capacity of the upper side oil cavity of the hydrostatic slider is tested through the hydraulic sensor 9 on the second adjusting block 71, and the liquid in the lower side oil cavity of the hydrostatic slider enters the second detection block 74 through the sixth flow path, and the measurement is realized through the detection sensor on the second detection block 74. It can be understood that the main difference between the horizontal test station 6 and the lateral test station 7 is the different placement directions of the hydrostatic slider 10 to be tested, which can be close to the real use scenario.

[0053] During specific setting, the second adjusting block 71 is slidably connected to the column 5, and a locking portion is provided on the second adjusting block 71; at least one oil return groove 622 is formed on the side wall of the second pressing plate 72 close to the second loading block 73, and the oil return groove 622 is arranged along the length direction of the second pressing plate 72. When dealing with static pressure sliders of different specifications, the adjustment of the assembly spacing can be achieved through the sliding of the second adjusting block 71, so that the second adjusting block 71 can still closely adhere to the upper side of the static pressure slider under different specifications. When the static pressure slider has four oil cavities, there is an oil film gap between the second pressing plate 72 and the contact oil cavity, and the oil will overflow from the oil film gap and flow to the bolt hole or other positions, which will affect the test accuracy. In this embodiment, the oil return groove 622 is used to prevent the oil from flowing, so that the oil flows out from both ends of the oil return groove 622.

[0054] According to an embodiment provided by the present invention, as Figure 4 shown, the multi-directional performance testing device further includes a base 2, a base 3 is fixedly connected inside the base 2, and a baffle 8 is connected to the edge of the base 2 in a circle to form a liquid accumulation pool 82 inside the base 2. During the testing process, the oil will overflow. In this embodiment, the liquid accumulation pool 82 can be used to collect the overflowing oil, avoid oil pollution of the workbench 1, and avoid waste of oil.

[0055] During specific setting, as Figure 2 shown, an oil return port 81 is provided on the baffle 8, and the oil return port 81 can realize the reuse of the oil.

[0056] During specific application, as Figure 4 shown, a plurality of magnetic bases 11 are further provided outside the base 2, and a detection instrument is provided on the magnetic base 11. Specifically, a dial indicator is provided on the magnetic base 11, and the dial indicator is used to detect the displacement of the static pressure slider under the pressure of the pressing component 40.

[0057] According to an embodiment provided by the present invention, as Figure 6 shown, an adjusting bracket 51 is provided on the column 5. The adjusting bracket 51 has a first connecting portion and a second connecting portion. A long hole is provided on the first connecting portion, and a bolt passes through the long hole to connect the first connecting portion to the column 5. A ball plunger is provided on the second connecting portion, and the ball plunger is used to contact and abut against the static pressure slider. When dealing with static pressure sliders of different specifications, the adjustment of different specifications of static pressure sliders can be achieved through the adjusting bracket 51.

[0058] During specific connection, one end of the static pressure slider is connected to the column 5 through a fixed connection component, and an adjusting bracket 51 is connected to the other end of the static pressure slider. Among them, the long hole on the first connecting portion can be connected to the column 5 under different specifications, and the ball plunger can abut against the static pressure slider to realize the positioning of the static pressure slider.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-directional performance testing device for a static pressure slider, characterized in that: include: Workbench; A base, fixed on the table top of the workbench; A support frame is fixedly arranged on the table top of the workbench, and at least a part of the support frame is located above the base; A column fixedly arranged on the base, the column divides the two sides of the base into a horizontal test station and a lateral test station, the horizontal test station is provided with a horizontal test assembly for horizontally installing the static pressure slider to be tested, the horizontal test assembly is configured to test the bearing capacity of the horizontal oil chamber of the static pressure slider, and the lateral test station is provided with a lateral test assembly for vertically installing the static pressure slider to be tested, the lateral test assembly is configured to test the bearing capacity of the lateral oil chamber of the static pressure slider; Wherein, a pressure component is slidably provided on the support frame located above the base, and the base and the support frame are arranged in the same direction so that the pressure component can switch between the horizontal test station and the lateral test station; The horizontal test assembly includes: a first throttle, a first adjusting block, a first pressure plate and a first loading block; the first throttle is arranged at both ends of the static pressure slider and is connected with each oil chamber of the static pressure slider; the first adjusting block is arranged on the base and is spaced from the column so that an installation gap is formed between the column and the first adjusting block, and the static pressure slider is arranged in the installation gap so that the side surfaces on both sides of the static pressure slider are pressed by the column and the first adjusting block; the first pressure plate is arranged on the top of the first adjusting block, and at least a part of the first pressure plate is located on the horizontal oil chamber to be tested on the test surface of the static pressure slider, a first flow path is constructed in the first pressure plate, the first flow path is connected with the horizontal oil chamber to be tested, and a hydraulic sensor is arranged at the outlet position of the first flow path; the first loading block is arranged on the test surface of the static pressure slider, and a second flow path is constructed in the first loading block, and the second flow path is used to input pressurized liquid into the first throttle; Among them, when performing a loading force test, pressurized liquid is input by the first loading block, enters into the hydrostatic slider to be tested through the first throttle, and enters into the first flow path from the horizontal oil chamber to be tested to measure the liquid pressure; the first adjusting block is provided with the hydraulic sensor, and a seventh flow path is opened in the first adjusting block, the port at one end of the seventh flow path is connected to the lateral oil chamber of the hydrostatic slider, and the other port of the seventh flow path is connected to the hydraulic sensor, thereby realizing the test of the bearing capacity of the lateral oil chamber of the hydrostatic slider at the horizontal testing station; the column is provided with the hydraulic sensor, and an eighth flow path is constructed inside the column, the port at one end of the eighth flow path is connected to the other lateral oil chamber of the hydrostatic slider, and the other port of the eighth flow path is connected to the hydraulic sensor, thereby realizing the test of the bearing capacity of the other lateral oil chamber of the hydrostatic slider.

2. The multi-directional performance testing device of the static pressure slider according to claim 1, characterized in that: The horizontal test assembly further includes a first detection block, the first detection block is connected to the base, the first detection block is located on the base at one side of the horizontal test station, and a detection sensor is provided on the first detection block; A third flow path is constructed in the base, a first port of the third flow path is located at the contact surface between the static pressure slider and the base, and a tail port of the third flow path is connected to the first detection block.

3. The multi-directional performance testing device of the static pressure slider according to claim 1, characterized in that: The first adjusting block is slidably connected to the base, and a locking portion is provided on the first adjusting block.

4. The multi-directional performance testing device of the static pressure slider according to claim 1, characterized in that: At least one oil return groove is formed on a side wall of the first pressing plate close to the first loading block, and the oil return groove is arranged along the length direction of the first pressing plate.

5. The multi-directional performance testing device of the static pressure slider according to claim 1, characterized in that: The lateral test assembly comprises: A second throttle, which is disposed at both ends of the hydrostatic slider and is connected to each oil chamber of the hydrostatic slider; A second adjustment block, the second adjustment block is arranged on the side wall of the column, an assembly spacing is provided between the second adjustment block and the upper surface of the base, and the static pressure slider is arranged within the assembly spacing, so that the lateral oil chamber to be measured on one side of the static pressure slider contacts the second adjustment block, and the other side of the static pressure slider contacts the upper surface of the base; A second pressing plate, the second pressing plate is disposed on the base and spaced apart from the column, at least a portion of the second pressing plate is in contact with one side of the static pressure slider, and the other side of the static pressure slider is in contact with the side surface of the column; a second loading block, the second loading block being arranged on the static pressure slider, the second loading block and the second pressure plate being located on the same surface of the static pressure slider, a fifth flow path being constructed in the second loading block, the fifth flow path being used to input pressurized liquid into the second throttle; Among them, a fourth flow path is constructed in the second adjustment block, and the fourth flow path is connected with the lateral oil chamber to be tested. A hydraulic sensor is provided at the outlet position of the fourth flow path; when performing a loading force test, pressurized liquid is input from the second loading block, enters the static pressure slider to be tested through the second throttle, and enters the fifth flow path from the lateral oil chamber to be tested to measure the liquid pressure.

6. The multi-directional performance testing device of the static pressure slider according to claim 5, characterized in that: The lateral test assembly further includes a second detection block, the second detection block is connected to the base, the second detection block is located on the base at one side of the lateral test station, and a detection sensor is provided on the second detection block; A sixth flow path is constructed in the base, a first port of the sixth flow path is located at the contact surface between the static pressure slider and the base, and a tail port of the sixth flow path is connected to the second detection block.

7. The multi-directional performance testing device of a static pressure slider according to claim 5, characterized in that: The second adjusting block is slidably connected to the column, and a locking portion is provided on the second adjusting block; at least one oil return groove is provided on the side wall of the second pressing plate close to the second loading block, and the oil return groove is arranged along the length direction of the second pressing plate.

8. The multi-directional performance testing device of a static pressure slider according to claim 1, characterized in that: It also includes a base, the base is fixedly connected inside the base, and a baffle is connected around the edge of the base to form a liquid accumulation pool inside the base.

9. The multi-directional performance testing device of a static pressure slider according to claim 1, characterized in that: An adjustment bracket is provided on the column, and the adjustment bracket has a first connecting part and a second connecting part. The first connecting part is provided with a long hole, and a bolt passes through the long hole to connect the first connecting part with the column. The second connecting part is provided with a ball head plunger, and the ball head plunger is used to contact and abut with the static pressure slider.

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