Multi-stage hydraulic oil cylinder vertical detection device

Abstract

The invention discloses a multi-stage hydraulic oil cylinder vertical detection device, and relates to the technical field of multi-stage hydraulic oil cylinders, and the multi-stage hydraulic oil cylinder vertical detection device comprises a bottom frame, the top of the bottom frame is fixedly connected with a workbench, the bottom of the workbench is fixedly connected with a hydraulic rod, the output end of the hydraulic rod penetrates through the workbench and extends to the upper side, and the top of the workbench is fixedly connected with an outer frame. A toothed plate is fixedly connected to the front surface of the outer frame, and second sliding rails are symmetrically and fixedly connected to the positions, close to the outer side of the toothed plate, of the front surface of the outer frame. According to the vertical detection device for the multistage hydraulic oil cylinder, when the vertical detection device for the multistage hydraulic oil cylinder is used, the test plate can automatically position the position of the next output end of the oil cylinder body in the upward moving process, and after positioning is completed, the hydraulic rod is continuously controlled to further test the oil cylinder body; the multi-stage hydraulic oil cylinder automatic positioning and detection device can realize multi-stage position automatic positioning and detection operation for a multi-stage hydraulic oil cylinder, has relatively high automation capability, and effectively improves the detection efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of multi-stage hydraulic cylinders, in particular to a vertical detection device for multi-stage hydraulic cylinders. Background Art

[0002] Multi-stage hydraulic cylinder is an important hydraulic transmission component, which is widely used in various occasions requiring high-strength and high-precision hydraulic control, such as construction machinery, mining machinery, ships, etc. The liquid is pushed by the pressure generated by the hydraulic pump, so that the piston of the first hydraulic cylinder moves outward. At the same time, the movement of this piston will send the liquid from the oil outlet of the first hydraulic cylinder to the oil inlet of the second hydraulic cylinder, and so on, forming a multi-stage hydraulic system.

[0003] In the prior art, when performing pressure detection on a multi-stage hydraulic cylinder, the traditional detection device can only perform pressure detection on the upper end of the cylinder in a vertical state. It is impossible to implement single-stage pressure detection on the multi-stage output end of the multi-stage hydraulic cylinder. Therefore, it is necessary to repeatedly control the adjustment state of the multi-stage hydraulic cylinder so that the upper end contracts and leaks out the lower end to be detected. The operation is relatively cumbersome and complicated.

[0004] Therefore, we proposed a multi-stage hydraulic cylinder vertical detection device to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a multi-stage hydraulic cylinder vertical detection device to solve the problem of the need to repeatedly control the adjustment state of the multi-stage hydraulic cylinder so that the upper end contracts and leaks out the lower end to be detected, which is a cumbersome and complicated operation.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a multi-stage hydraulic cylinder vertical detection device, comprising: a base frame, the top of the base frame is fixedly connected to a workbench, the bottom of the workbench is fixedly connected to a hydraulic rod, the output end of the hydraulic rod passes through the workbench and extends to the upper side, the top of the workbench is fixedly connected to an outer frame, the front surface of the outer frame is fixedly connected to a toothed plate, and the front surface of the outer frame is symmetrically fixedly connected to a second slide rail near the outer side of the toothed plate; a mounting assembly, the mounting assembly is fixedly connected to the output end of the hydraulic rod, the mounting assembly comprises a bearing plate and a cylinder body; a driving assembly, the driving assembly comprises a cross plate, the rear surface of the cross plate is fixedly connected to a side frame; a positioning assembly, the number of the positioning assemblies is set to two, the two positioning assemblies are symmetrically fixedly connected to the front surface of the cross plate, the positioning assembly comprises a bracket, the top of the bracket is fixedly connected to a support seat; a stabilizing assembly 7, the stabilizing assembly 7 is fixedly connected to the top of the workbench 2, and the stabilizing assembly 7 comprises a stabilizing frame 701.

[0007] Preferably, mounting holes are provided at the top of the supporting plate near the corners, the oil cylinder body is located above the supporting plate, the oil cylinder body is fixedly connected to the supporting plate by bolts, and the oil cylinder body is in an extended state during detection.

[0008] Preferably, a motor is fixedly connected to the outer surface of the side frame, the motor output end passes through the side frame and extends to the inside, the motor output end is fixedly connected to a rotating shaft, the end face of the rotating shaft is rotatably connected to the inner surface of the side frame, the outer surface of the rotating shaft is fixedly connected to a gear, and the gear is meshingly connected to a gear plate.

[0009] Preferably, extension rods are fixedly connected to the bottom corners of the side frame, the extension rods are located outside the rotating shaft, and the multiple extension rods are divided into two groups. Slide blocks are fixedly connected between the end faces of the two groups of extension rods, and the inner surface of the slide block is slidably connected to the outer surface of the second slide rail.

[0010] Preferably, through holes are symmetrically opened on the outer surface of the support seat, a bearing is fixedly connected to the inner surface of the through hole, and an insertion rod is inserted into the inner surface of the bearing.

[0011] Preferably, a push rack is fixedly connected between the end faces of the two insertion rods, a test plate is fixedly connected to the bottom of the push rack, the push rack is located close to the cylinder body, an arc groove is provided on the outer surface of the test plate close to the cylinder body, a plurality of circular holes are evenly provided on the bottom of the arc groove, and balls are arranged inside the plurality of circular holes.

[0012] Preferably, the arc groove and the cylinder body are in a fit state, a spring is symmetrically fixedly connected between the support seat and the push frame, the spring is located at the outside of the insertion rod, a side plate is fixedly connected between the other side end surfaces of the two insertion rods, a laser displacement sensor is fixedly connected to the outer surface of the side plate, the laser displacement sensor cooperates with the position of the support seat, and the laser displacement sensor is electrically connected to the motor.

[0013] Preferably, a first slide rail is fixedly connected to the top of the stabilizing frame, a limiting block is symmetrically slidably connected to the outer surface of the first slide rail, a moving seat is fixedly connected to the bottom of the limiting block, and a slide rod is symmetrically penetrated and slidably connected to the top of the moving seat.

[0014] Preferably, a pressure plate is fixedly connected between the lower end surfaces of the two sliding rods, the pressure plate is located at the lower side of the movable seat, a plurality of connecting rods are fixedly connected at equal intervals to the bottom of the pressure plate, and a magnetic attraction plate is fixedly connected between the lower end surfaces of the plurality of connecting rods.

[0015] Preferably, the two magnetic plates are respectively matched with the two pushing rack positions, the magnetic plates and the pushing rack are in a magnetic connection state, a multi-stage electric telescopic rod is fixedly connected to the bottom of the movable seat, the multi-stage electric telescopic rod is located between the two sliding rods, and a stabilizing plate is fixedly connected to the lower end surface of the multi-stage electric telescopic rod, and the stabilizing plate is located above the pressure plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. When the multi-stage hydraulic cylinder vertical detection device is in use, the test plate can automatically locate the next output end position of the cylinder body during the upward movement. After completing the positioning, it continues to control the hydraulic rod to further test the cylinder body. For the multi-stage hydraulic cylinder, it can realize automatic positioning and detection operations of multi-stage positions, has strong automation capabilities, and effectively improves the detection efficiency.

[0017] 2. When the test plate is moved into place and the hydraulic rod is operated for testing, the multi-stage electric telescopic rod is started to extend simultaneously. After the multi-stage electric telescopic rod is extended, it can drive the stabilizing plate to move downward. By applying pressure to the pressure plate after the stabilizing plate moves downward, a certain pressure can be applied to the cylinder body from above. When the hydraulic rod is running to apply pressure to the cylinder body for testing, the pressure on the test plate can be shared to avoid breakage and damage of the test plate after being compressed, thereby improving the stability of the positioning component structure during the test.

[0018] 3. When the test plate is displaced against the outer wall of the cylinder body, the ball will adhere to the outer wall of the cylinder body and rotate. The rolling of the ball can reduce friction, thereby reducing the wear on the cylinder body during the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of a multi-stage hydraulic cylinder vertical detection device of the present invention; Figure 2 A bottom view of a multi-stage hydraulic cylinder vertical detection device of the present invention; Figure 3 It is an exploded diagram of a multi-stage hydraulic cylinder vertical detection device of the present invention; Figure 4 It is a schematic diagram of the structure of the installation components of a multi-stage hydraulic cylinder vertical detection device of the present invention; Figure 5 It is a schematic diagram of the structure of a driving component of a multi-stage hydraulic cylinder vertical detection device of the present invention; Figure 6 It is a schematic diagram of the structure of a positioning component of a multi-stage hydraulic cylinder vertical detection device of the present invention; Figure 7 It is a schematic diagram of the side plate structure of a multi-stage hydraulic cylinder vertical detection device of the present invention; Figure 8 It is a schematic diagram of the structure of a stable component of a multi-stage hydraulic cylinder vertical detection device of the present invention; Fig. 9 It is a schematic diagram of the structure of a stabilizing plate of a multi-stage hydraulic cylinder vertical detection device of the present invention.

[0020] In the figure: 1. Base frame; 2. Workbench; 3. Hydraulic rod; 4. Mounting assembly; 401. Loading plate; 402. Mounting hole; 403. Cylinder body; 5. Driving assembly; 501. Cross plate; 502. Side frame; 503. Motor; 504. Rotating shaft; 505. Gear; 506. Extension rod; 507. Slider; 6. Positioning assembly; 601. Bracket; 602. Support seat; 603. Bearing; 604. Insert rod; 605. Side plate; 606, laser displacement sensor; 607, spring; 608, push frame; 609, test board; 610, ball bearing; 7, stabilizing assembly; 701, stabilizing frame; 702, first slide rail; 703, limit block; 704, moving seat; 705, slide bar; 706, pressure plate; 707, connecting rod; 708, magnetic plate; 709, multi-stage electric telescopic rod; 710, stabilizing plate; 8, external frame; 9, tooth plate; 10, second slide rail. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Embodiment 1 Reference Figure 1-Figure 9As shown, the present invention provides a technical solution: a multi-stage hydraulic cylinder vertical detection device, comprising: a base frame 1, a workbench 2 is fixedly connected to the top of the base frame 1, a hydraulic rod 3 is fixedly connected to the bottom of the workbench 2, the output end of the hydraulic rod 3 passes through the workbench 2 and extends to the upper side, an outer frame 8 is fixedly connected to the top of the workbench 2, a tooth plate 9 is fixedly connected to the front surface of the outer frame 8, and a second slide rail 10 is symmetrically fixedly connected to the front surface of the outer frame 8 near the outer side of the tooth plate 9; a mounting assembly 4, the mounting assembly 4 is fixedly connected to the output end of the hydraulic rod 3, and the mounting assembly 4 includes a bearing plate 401 and a cylinder body 403; a driving assembly 5, the driving assembly 5 includes a transverse plate 501, and a side frame 502 is fixedly connected to the rear surface of the transverse plate 501; a positioning assembly 6, the number of the positioning assemblies 6 is set to two, and the two positioning assemblies 6 are symmetrically fixedly connected to the front surface of the transverse plate 501, and the positioning assembly 6 includes a bracket 601, and a support seat 602 is fixedly connected to the top of the bracket 601;The stabilizing component 7 is fixedly connected to the top of the workbench 2. The stabilizing component 7 includes a stabilizing frame 701. Mounting holes 402 are provided at the top of the load-bearing plate 401 near the corners. The cylinder body 403 is located above the load-bearing plate 401. The cylinder body 403 is fixedly connected to the load-bearing plate 401 by bolts. The cylinder body 403 is in an extended state during detection. The outer surface of the side frame 502 is fixedly connected to a motor 503. The output end of the motor 503 passes through the side frame 502 and extends to the inside. The output end of the motor 503 is fixedly connected to a rotating shaft 504. The end face of the rotating shaft 504 is rotatably connected to the inner surface of the side frame 502. The outer surface of the rotating shaft 504 is fixedly connected to a gear 505. The gear 505 is meshed with the toothed plate 9. The inner bottom of the side frame 502 An extension rod 506 is fixedly connected at each corner, and the extension rod 506 is located outside the rotating shaft 504. The multiple extension rods 506 are divided into two groups, and a slider 507 is fixedly connected between the end faces of the two groups of extension rods 506. The inner surface of the slider 507 is slidably connected to the outer surface of the second slide rail 10. The outer surface of the support seat 602 is symmetrically provided with through holes, and the inner surface of the through holes is fixedly connected with a bearing 603. The inner surface of the bearing 603 is inserted with an insertion rod 604. A push frame 608 is fixedly connected between the end faces of the two insertion rods 604. A test plate 609 is fixedly connected to the bottom of the push frame 608. The push frame 608 is located on the side close to the cylinder body 403. The outer surface of the test plate 609 close to the cylinder body 403 is provided with an arc groove, and the bottom of the arc groove is evenly provided with a plurality of The circular holes are provided with ball bearings 610 inside the multiple circular holes, the arc groove is in a fitting state with the oil cylinder body 403, the support seat 602 and the push frame 608 are symmetrically fixedly connected with a spring 607, the spring 607 is located at the outer side of the plug rod 604, and the other side end faces of the two plug rods 604 are fixedly connected with a side plate 605, and the outer surface of the side plate 605 is fixedly connected with a laser displacement sensor 606, and the laser displacement sensor 606 is matched with the position of the support seat 602, and the laser displacement sensor 606 is electrically connected with the motor 503, and the top of the stabilizing frame 701 is fixedly connected with a first slide rail 702, and the outer surface of the first slide rail 702 is symmetrically slidably connected with a limit block 703, and the bottom of the limit block 703 is fixedly connected with a moving seat 704, and the moving seat 7 04 The top is symmetrically connected with a slide bar 705, and a pressure plate 706 is fixedly connected between the lower end surfaces of the two slide bars 705. The pressure plate 706 is located at the lower side of the moving seat 704. A plurality of connecting rods 707 are fixedly connected to the bottom of the pressure plate 706 at equal intervals. A magnetic plate 708 is fixedly connected between the lower end surfaces of the plurality of connecting rods 707. The two magnetic plates 708 are respectively matched with the positions of the two push racks 608. The magnetic plates 708 and the push racks 608 are in a magnetic connection state. A multi-stage electric telescopic rod 709 is fixedly connected to the bottom of the moving seat 704. The multi-stage electric telescopic rod 709 is located between the two slide bars 705. A stabilizing plate 710 is fixedly connected to the lower end surface of the multi-stage electric telescopic rod 709. The stabilizing plate 710 is located above the pressure plate 706. ;

[0023] In this embodiment, when the multi-stage hydraulic cylinder vertical detection device is used, the hydraulic rod 3 and the installation component 4 are used in coordination to install the cylinder body 403 and apply pressure for detection. After completing the installation operation of the cylinder body 403, the initial position of the drive component 5 and the positioning component 6 is the main cylinder body position close to the cylinder body 403, and the test plate 609 and the main cylinder body surface of the cylinder body 403 are in a fitted state. At this time, the rebound force of the spring 607 can be used to apply pressure to the test plate 609 in the direction of the cylinder body 403. By using the laser displacement sensor 606, the distance between the laser displacement sensor 606 and the support seat 602 is the initial distance at this time, and the side plate 605 is at the position. When the position changes, the distance between the laser displacement sensor 606 and the support seat 602 will change. Therefore, the use of the laser displacement sensor 606 can monitor the position change to complete the switch control. When the detection work starts, the motor 503 is started to drive the side frame 502 to move up. The side frame 502 can synchronously drive the brackets 601 on both sides to move up through the connection of the cross plate 501. The bracket 601 can drive the support seat 602 to move up. At this time, the test plate 609 always keeps in contact with the outer wall of the cylinder body 403 to move up. The spring 607 is always used to provide support for the test plate 609. When the test plate 609 moves to the telescopic end position of the cylinder body 403 , the outer wall size of the cylinder body 403 changes, so the resilience of the spring 607 can drive the test plate 609 to move, so that the test plate 609 and the extended end of the cylinder body 403 are in a fitted state. When the test plate 609 changes position and is in the stepped position at the output end of the cylinder body 403, the displacement of the side plate 605 will cause the laser displacement sensor 606 to move synchronously. At this time, after the laser displacement sensor 606 receives the displacement signal, it means that the test position of the test plate 609 has been adjusted. At this time, the laser displacement sensor 606 can control the motor 503 to stop running. At this time, the test plates 609 on both sides are in a state of clamping the single-stage output of the cylinder body 403. The state of the end, after the test plate 609 completes the automatic position adjustment, the hydraulic rod 3 is started to extend to push the load-bearing plate 401 to move upward. The lower end of the cylinder body 403 is fixed to the load-bearing plate 401, and the upper end is in contact with the test plate 609, and the test plate 609 is in a fixed height state. After completing the single-stage pressure test on the cylinder body 403, the motor 503 is started again. The test plate 609 can automatically position the next output end position of the cylinder body 403 during the upward movement process. After completing the positioning, the hydraulic rod 3 is continued to be controlled to further test the cylinder body 403. For the multi-stage hydraulic cylinder, it can realize automatic positioning and detection operations of multi-stage positions, has strong automation capabilities, and effectively improves the detection efficiency.

[0024] Embodiment 2 Figure 8As shown, a first slide rail 702 is fixedly connected to the top of the stabilizing frame 701, a limiting block 703 is symmetrically slidably connected to the outer surface of the first slide rail 702, a moving seat 704 is fixedly connected to the bottom of the limiting block 703, a sliding rod 705 is symmetrically penetrated and slidably connected to the top of the moving seat 704, a pressure plate 706 is fixedly connected between the lower end surfaces of the two sliding rods 705, the pressure plate 706 is located at the lower side of the moving seat 704, a plurality of connecting rods 707 are equidistantly fixedly connected to the bottom of the pressure plate 706, and a magnetic attraction plate 708 is fixedly connected between the lower end surfaces of the plurality of connecting rods 707.

[0025] In this embodiment, when the hydraulic rod 3 is operated for testing after the test plate 609 is moved into place, the multi-stage electric telescopic rod 709 is simultaneously started to extend. After the multi-stage electric telescopic rod 709 is extended, it can drive the stabilizing plate 710 to move downward. By applying pressure to the pressure plate 706 after the stabilizing plate 710 moves downward, a certain pressure can be applied to the cylinder body 403 from above. When the hydraulic rod 3 is operated to apply pressure to the cylinder body 403 for detection, the pressure on the test plate 609 can be shared, thereby preventing the test plate 609 from breaking and being damaged after being compressed, thereby improving the stability of the positioning component 6 structure during the test.

[0026] Embodiment 3 Figure 6 As shown, an arc groove is provided on the outer surface of the test plate 609 close to the cylinder body 403, and a plurality of circular holes are evenly provided at the bottom of the arc groove, and balls 610 are arranged inside the plurality of circular holes, and the arc groove and the cylinder body 403 are in a fitting state.

[0027] In this embodiment, when the test plate 609 is displaced by adhering to the outer wall of the cylinder body 403, the ball 610 will adhere to the outer wall of the cylinder body 403 and rotate. The rolling of the ball 610 can reduce friction, thereby reducing the wear on the cylinder body 403 during the detection process.

[0028] The use method and working principle of the device: When the multi-stage hydraulic cylinder vertical detection device is used, the cylinder body 403 can be installed and pressurized for detection through the coordinated use of the hydraulic rod 3 and the mounting assembly 4. When installing the cylinder body 403, place the cylinder body 403 in the center above the carrier plate 401, then align the hole position of the cylinder body 403 with the mounting hole 402, use bolts to install the cylinder body 403 and the carrier plate 401, and after completing the installation operation of the cylinder body 403, connect the pipeline and oil pump of the cylinder body 403. After the connection is completed, drive the cylinder body 403 until the output ends of each level are in the extended state, and then drive the drive assembly 5, the positioning assembly 6 and the stabilizing assembly 7. The test components 609 and 609 are in close contact with the main cylinder surface of the cylinder body 403, and the test plates 609 on both sides are supported by the connection of the push rack 608, and the push rack 608 is supported by the connection between the spring 607 and the insertion rod 604. At this time, the resilience of the spring 607 can be used to apply pressure to the test plate 609 in the direction of the cylinder body 403, so that the arc surface of the test plate 609 is in close contact with the surface of the cylinder body 403. By setting the insertion rod 604 inside the spring 607, the insertion rod 604 can push the spring 607 to And the position of the push frame 608 plays a supporting role, which improves the stability of the position of the push frame 608. When the test plates 609 on both sides are in a fit state with the cylinder body 403, the test plates 609 are in a stationary state, so the side plates 605 on both sides are also in a stationary state. At this time, through the use of the laser displacement sensor 606, the distance between the laser displacement sensor 606 and the support seat 602 is the initial distance. When the position of the side plate 605 changes, the distance between the laser displacement sensor 606 and the support seat 602 will change. Therefore, the use of the laser displacement sensor 606 can monitor the position change to complete the switch control. When starting the detection work, start the motor 503 to run. After the motor 503 is started, it can drive the rotating shaft 504 follows the rotation, and the rotation of the rotating shaft 504 can drive the gear 505 to follow the rotation. When the gear 505 rotates, the meshing of the gear 505 and the toothed plate 9 can drive the side frame 502 to follow and move upward. When the side frame 502 is displaced, it will drive the slider 507 to move along the second slide rail 10 through the connection of the extension rod 506. At this time, the second slide rail 10 and the slider 507 are used in conjunction with each other to support and limit the displacement of the side frame 502. Through the upward movement of the side frame 502, the side frame 502 can synchronously drive the brackets 601 on both sides to move upward through the connection of the cross plate 501, and the bracket 601 can drive the support seat 602 to move upward. At this time, the test plate 609 always keeps in contact with the outer wall of the cylinder body 403 to move upward.By means of the setting that the spring 607 always provides support for the test plate 609, when the test plate 609 moves to the telescopic end position of the cylinder body 403, the outer wall size of the cylinder body 403 changes, so the resilience of the spring 607 can drive the test plate 609 to move, so that the test plate 609 and the extended end of the cylinder body 403 are in a fit state, and when the test plate 609 is displaced by fitting with the outer wall of the cylinder body 403, the ball 610 will fit with the outer wall of the cylinder body 403 and rotate, and the rolling of the ball 610 can reduce the friction, thereby reducing the wear on the cylinder body 403 during the detection process. When the test plate 609 is set, the position change of the test plate 609 will cause the position change of the side plate 605, and the displacement of the side plate 605 will cause the laser displacement sensor 606 to move synchronously. At this time, after the laser displacement sensor 606 receives the displacement signal, it means that the test position of the test plate 609 has been adjusted. At this time, the laser displacement sensor 606 can control the motor 503 to stop running. At this time, the test plates 609 on both sides are in a state of clamping the single-stage output end of the cylinder body 403. After the test plate 609 completes the automatic position adjustment, the hydraulic rod 3 is started to extend. After the hydraulic rod 3 is running, it can push the bearing plate 401 to move upward. At this time, since the lower end of the cylinder body 403 is fixed to the bearing plate 401, and the upper end is in contact with the test plate 609, and the test plate 609 is fixed Height state, so the bearing plate 401 moves upward to apply pressure to the cylinder body 403. If the cylinder body 403 can bear the predetermined pressure without failure, it means that the cylinder body 403 is of qualified quality and the single-stage pressure test of the cylinder body 403 is completed. Then, the motor 503 is started again. After the motor 503 is running, it can drive the test plate 609 to continue to move upward. The test plate 609 can automatically locate the next output end position of the cylinder body 403 during the upward movement. After positioning is completed, the hydraulic rod 3 is continued to be controlled to further test the cylinder body 403. For multi-stage hydraulic cylinders, automatic positioning and detection operations of multi-stage positions can be realized. It has strong automation capabilities, effectively improves the detection efficiency, and is positioned when the test plate 609 is displaced. During the test, the displacement of the test plate 609 will drive the magnetic plate 708 to move along. The magnetic plate 708 can drive the limit block 703 to move along through the connection of the connecting rod 707, the pressure plate 706, the slide bar 705 and the moving seat 704. When the test plate 609 moves upward, it will drive the slide bar 705 to move upward. The limit block 703 will move along the first slide rail 702 to ensure that the displacement of the moving seat 704 is relatively stable. At this time, the moving seat 704 can follow the left and right and up and down displacement of the test plate 609 and always maintain a corresponding position with the test plate 609. After the test plate 609 is moved into place, when the hydraulic rod 3 is operated for testing, the multi-stage electric telescopic rod 709 is synchronously started to extend. After the multi-stage electric telescopic rod 709 is extended, it can drive the stabilizing plate 710 to move downward.By moving the stabilizing plate 710 downward to apply pressure to the pressure plate 706, a certain pressure can be applied to the oil cylinder body 403 from above. When the hydraulic rod 3 is running to apply pressure to the oil cylinder body 403 for testing, the pressure on the test plate 609 can be shared to avoid the test plate 609 from being broken and damaged after being pressed, thereby improving the stability of the positioning assembly 6 structure during the test process.

[0029] The wiring diagram of the hydraulic rod 3, the cylinder body 403, the motor 503, the laser displacement sensor 606 and the multi-stage electric telescopic rod 709 in the present invention is common knowledge in the art, and its working principle is a well-known technology. The model is selected according to the actual use, so the control method and wiring arrangement of the hydraulic rod 3, the cylinder body 403, the motor 503, the laser displacement sensor 606 and the multi-stage electric telescopic rod 709 are no longer explained in detail.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to 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 multi-stage hydraulic cylinder vertical detection device, characterized in that: include: A base frame (1), wherein the top of the base frame (1) is fixedly connected to a workbench (2), the bottom of the workbench (2) is fixedly connected to a hydraulic rod (3), the output end of the hydraulic rod (3) passes through the workbench (2) and extends to the upper side, the top of the workbench (2) is fixedly connected to an external frame (8), the front surface of the external frame (8) is fixedly connected to a toothed plate (9), and the front surface of the external frame (8) is symmetrically fixedly connected to a second slide rail (10) near the outer side of the toothed plate (9); A mounting assembly (4), the mounting assembly (4) being fixedly connected to the output end of the hydraulic rod (3), the mounting assembly (4) comprising a bearing plate (401) and a cylinder body (403); A driving assembly (5), the driving assembly (5) comprising a transverse plate (501), a rear surface of the transverse plate (501) being fixedly connected to a side frame (502); A positioning assembly (6), wherein the number of the positioning assemblies (6) is set to be two, and the two positioning assemblies (6) are symmetrically fixedly connected to the front surface of the horizontal plate (501), and the positioning assembly (6) comprises a bracket (601), and the top of the bracket (601) is fixedly connected to a support seat (602); The stabilizing component 7 is fixedly connected to the top of the workbench 2 , and the stabilizing component 7 includes a stabilizing frame 701 .

2. The multi-stage hydraulic cylinder vertical detection device according to claim 1 is characterized in that: The top of the bearing plate (401) is provided with mounting holes (402) near the corners. The oil cylinder body (403) is located above the bearing plate (401). The oil cylinder body (403) is fixedly connected to the bearing plate (401) by bolts. The oil cylinder body (403) is in an extended state during detection.

3. The multi-stage hydraulic cylinder vertical detection device according to claim 2 is characterized in that: The outer surface of the side frame (502) is fixedly connected to a motor (503); the output end of the motor (503) passes through the side frame (502) and extends to the inner side; the output end of the motor (503) is fixedly connected to a rotating shaft (504); the end surface of the rotating shaft (504) is rotatably connected to the inner surface of the side frame (502); the outer surface of the rotating shaft (504) is fixedly connected to a gear (505); and the gear (505) is meshingly connected to a toothed plate (9).

4. The multi-stage hydraulic cylinder vertical detection device according to claim 3 is characterized in that: The inner bottom corners of the side frame (502) are fixedly connected with extension rods (506), and the extension rods (506) are located outside the rotating shaft (504). The plurality of extension rods (506) are divided into two groups, and the end surfaces of the two groups of extension rods (506) are fixedly connected with sliders (507), and the inner surface of the slider (507) is slidably connected to the outer surface of the second slide rail (10).

5. The multi-stage hydraulic cylinder vertical detection device according to claim 4 is characterized in that: The outer surface of the support seat (602) is symmetrically provided with through holes, the inner surface of the through hole is fixedly connected to a bearing (603), and the inner surface of the bearing (603) is inserted with an insertion rod (604).

6. The multi-stage hydraulic cylinder vertical detection device according to claim 5 is characterized in that: A push frame (608) is fixedly connected between the end surfaces of the two insertion rods (604), and a test plate (609) is fixedly connected to the bottom of the push frame (608). The push frame (608) is located on the side close to the cylinder body (403), and an arc groove is provided on the outer surface of the side of the test plate (609) close to the cylinder body (403). A plurality of circular holes are evenly provided at the bottom of the arc groove, and balls (610) are provided inside the plurality of circular holes.

7. The multi-stage hydraulic cylinder vertical detection device according to claim 6 is characterized in that: The arc groove and the oil cylinder body (403) are in a fitted state, a spring (607) is symmetrically fixedly connected between the support seat (602) and the push frame (608), the spring (607) is located outside the insertion rod (604), a side plate (605) is fixedly connected between the other side end surfaces of the two insertion rods (604), a laser displacement sensor (606) is fixedly connected to the outer surface of the side plate (605), the laser displacement sensor (606) is matched with the support seat (602), and the laser displacement sensor (606) is electrically connected to the motor (503).

8. The multi-stage hydraulic cylinder vertical detection device according to claim 7 is characterized in that: The top of the stabilizing frame (701) is fixedly connected to a first slide rail (702); the outer surface of the first slide rail (702) is symmetrically slidably connected to a limit block (703); the bottom of the limit block (703) is fixedly connected to a moving seat (704); and the top of the moving seat (704) is symmetrically penetrated and slidably connected to a slide rod (705).

9. The multi-stage hydraulic cylinder vertical detection device according to claim 8 is characterized in that: A pressure plate (706) is fixedly connected between the lower end surfaces of the two sliding rods (705), and the pressure plate (706) is located at the lower side of the movable seat (704). A plurality of connecting rods (707) are fixedly connected to the bottom of the pressure plate (706) at equal intervals, and a magnetic attraction plate (708) is fixedly connected between the lower end surfaces of the plurality of connecting rods (707).

10. The multi-stage hydraulic cylinder vertical detection device according to claim 9, characterized in that: The two magnetic plates (708) are respectively matched with the positions of the two push frames (608), and the magnetic plates (708) and the push frames (608) are in a magnetic connection state. The bottom of the movable seat (704) is fixedly connected with a multi-stage electric telescopic rod (709), and the multi-stage electric telescopic rod (709) is located between the two sliding rods (705). The lower end surface of the multi-stage electric telescopic rod (709) is fixedly connected with a stabilizing plate (710), and the stabilizing plate (710) is located above the pressure plate (706).

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