Automatic positioning and locking device, vibrating table and vibrating table group

Abstract

The utility model provides an automatic position adjusting and locking device, a vibrating table and a vibrating table group, the automatic position adjusting and locking device comprises a substrate, a moving plate, a moving assembly and a locking mechanism, the moving assembly is used for driving the moving plate to move, and the locking mechanism is used for locking the substrate and the moving plate; the locking mechanism comprises a T-shaped sliding groove, a T-shaped nut and a locking oil cylinder, the T-shaped sliding groove is formed in the base plate, the T-shaped nut is arranged in the T-shaped sliding groove in a sliding mode, the locking oil cylinder is arranged on the movable plate, a penetrating groove penetrating through the movable plate is formed in the movable plate, the locking oil cylinder comprises a cylinder body arranged above the penetrating groove, an oil hole is formed in the upper portion of the cylinder body, and the oil hole is communicated with the penetrating groove. Oil can be injected into the cylinder body or decompressed through the oil hole, a piston, a piston rod and a spring are arranged in the cylinder body, one end of the spring is connected with the bottom face of the piston, the other end of the spring is connected with the inner wall of the bottom of the cylinder body, and the piston rod penetrates through the penetrating groove to be connected with the T-shaped nut. The adjusting precision is high, locking is firm, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration test benches, and in particular to an automatic position adjustment and locking device, a vibration bench and a vibration bench group. Background Art

[0002] Vibration test is a typical test of environmental mechanical test, which is widely used in mechanical simulation verification and reliability verification of automotive parts, aerospace products, etc.

[0003] With the continuous development of science and technology and social production, the demand for vibration tests on long and special-shaped specimens is increasing. Therefore, it is usually necessary to use two or more vibration test benches to cooperate to realize the vibration test of long and special-shaped specimens. However, due to the uniqueness of long and special-shaped specimens, after replacing new specimens, it is often necessary to readjust the distance, height, number, etc. between the vibration test benches according to the size and shape of the specimens, which is prone to deviations, time-consuming and labor-intensive, and has a low degree of automation. Summary of the invention

[0004] The purpose of the utility model is to provide an automatic position-adjusting and locking device, a vibration table and a vibration table group to solve the above problems.

[0005] The technical solution adopted by the utility model is:

[0006] An automatic positioning and locking device comprises a base plate, a moving plate, a moving assembly and a locking mechanism, wherein the moving assembly is used to drive the moving plate to move, and the locking mechanism is used to lock the base plate and the moving plate;

[0007] The locking mechanism includes a T-shaped slot, a T-shaped nut and a locking cylinder. The T-shaped slot is arranged on a base plate, and the T-shaped nut can be slidably arranged in the T-shaped slot. The locking cylinder is arranged on a movable plate, and a through slot penetrating the movable plate is arranged in the movable plate. The locking cylinder includes a cylinder body arranged above the through slot, and an oil hole is arranged on the upper part of the cylinder body. Oil can be injected into the cylinder body or the oil can be depressurized through the oil hole. A piston, a piston rod and a spring are arranged in the cylinder body, one end of the spring is connected to the bottom surface of the piston, and the other end of the spring is connected to the bottom inner wall of the cylinder body. The piston rod passes through the through slot and is connected to the T-shaped nut.

[0008] As a further improved technical solution of the utility model, a plurality of spring winding columns are arranged at the bottom of the cylinder body, the springs are wound on the spring winding columns, the number of the springs is equal to the spring winding columns, and the plurality of spring winding columns are evenly distributed circumferentially with the piston rod as the center.

[0009] As a further improved technical solution of the utility model, the number of the springs is greater than or equal to three.

[0010] As a further improved technical solution of the utility model, a limiting step is provided on the inner side wall of the cylinder body, and the limiting step is used to limit the extreme position of the downward movement of the piston.

[0011] As a further improved technical solution of the utility model, the piston rod is threadedly connected with the T-shaped nut.

[0012] As a further improved technical solution of the utility model, the moving component includes an x-direction moving mechanism and a y-direction moving mechanism, the moving plate includes an x-direction moving plate and a y-direction moving plate, the x-direction moving mechanism is arranged on a substrate, the x-direction moving mechanism is used to drive the x-direction moving plate to move, the y-direction moving mechanism is arranged on the x-direction moving plate, and the y-direction moving mechanism is used to drive the y-direction moving plate to move.

[0013] As a further improved technical solution of the utility model, the x-direction moving mechanism includes an x-direction motor and an x-direction screw driven by the x-direction motor, an x-direction screw nut is provided on the x-direction screw, and the x-direction screw nut is fixed to the x-direction moving plate to drive the x-direction moving plate to move; the structure of the y-direction moving mechanism is consistent with that of the x-direction moving mechanism.

[0014] As a further improved technical solution of the utility model, at least three symmetrically distributed or circumferentially evenly distributed locking mechanisms are arranged between the substrate and the x-axis moving plate to form an x-axis locking mechanism group, and at least three symmetrically distributed or circumferentially evenly distributed locking mechanisms are arranged between the x-axis moving plate and the y-axis moving plate to form a y-axis locking mechanism group.

[0015] A vibration table comprises the automatic positioning and locking device as described above, wherein a vibration excitation device and a vibration table surface driven by the vibration excitation device to vibrate are arranged on the Y-direction movable plate.

[0016] A vibration table group comprises at least three vibration tables as described above.

[0017] The beneficial effects of the utility model are:

[0018] Through the above structure, before and after the position adjustment, the locking cylinder is used to control the position relationship between the T-nut and the T-slot, so as to realize the locking and unlocking between the base plate and the movable plate, with high adjustment accuracy, firm locking and wide application range. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the vibration table;

[0020] Figure 2 It is a structural schematic diagram of an automatic position-adjusting locking device;

[0021] Figure 3 is a side view of the automatic position-adjusting locking device;

[0022] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0023] Among them: 100-base plate, 200-locking mechanism, 210-T-shaped slide groove, 220-T-shaped nut, 230-locking cylinder, 231-cylinder body, 232-oil hole, 233-piston, 234-piston rod, 235-spring, 236-spring winding column, 237-limiting step, 300-through groove, 400-x-direction moving mechanism, 410-x-direction motor, 420-x-direction lead screw, 430-x-direction motor mounting seat, 500-x-direction moving plate, 600-y-direction moving mechanism, 610-y-direction motor, 620-y-direction lead screw, 630-y-direction motor mounting seat, 700-y-direction moving plate, 800-excitation device, 900-vibration table. DETAILED DESCRIPTION

[0024] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0025] If the utility model involves directions (e.g., up, down, left, right, front, back, outside, inside, etc.) when describing, it is necessary to define the directions involved, such as "In order to clearly express the positions and directions described in the utility model, the end close to the operator is the proximal end, and the end away from the operator is the distal end." Or define it with the paper as a reference, etc. Of course, if the positional relationship between the two is defined by mutual reference in the subsequent description, it does not need to be defined here.

[0026] An automatic positioning locking device, such as Figures 1 to 3 As shown, it includes a substrate 100, a moving plate, a moving component and a locking mechanism 200. The moving component is arranged on the substrate 100. The moving component is used to drive the moving plate to move so as to adjust the position of the moving plate. The locking mechanism 200 is used to lock the substrate 100 and the moving plate. After locking, no relative displacement occurs between the substrate 100 and the moving plate.

[0027] like Figure 4As shown, the locking mechanism 200 includes a T-shaped slot 210, a T-shaped nut 220 and a locking cylinder 230. The T-shaped slot 210 is arranged on the base plate 100, and the T-shaped nut 220 is slidably arranged in the T-shaped slot 210. The locking cylinder 230 is arranged on a movable plate, and a through slot 300 penetrating the movable plate is arranged in the movable plate. The locking cylinder 230 includes a cylinder body 231 arranged above the through slot 300, and a locking cylinder 230 is arranged on the upper part of the cylinder body 231. There is an oil hole 232, through which oil can be injected into the cylinder 231 or the oil can be depressurized. A piston 233 and a piston rod 234 are arranged in the cylinder 231. A spring 235 is arranged between the bottom surface of the piston 233 and the bottom inner wall of the cylinder 231. One end of the spring 235 is connected to the bottom surface of the piston 233, and the other end of the spring 235 is connected to the bottom inner wall of the cylinder 231. The piston rod 234 passes through the through groove 300 and is connected to the T-shaped nut 220. The piston rod 234 is threadedly connected to the T-shaped nut 220.

[0028] As an embodiment of the utility model, a plurality of spring winding columns 236 are arranged at the bottom of the cylinder body 231, and the springs 235 are wound on the spring winding columns 236. The number of the springs 235 is equal to the spring winding columns 236, and the springs 235 correspond to the spring winding columns 236 one by one. The plurality of spring winding columns 236 are evenly distributed circumferentially with the piston rod 234 as the center.

[0029] As an embodiment of the present invention, in order to provide sufficient force, the number of the springs 235 is greater than or equal to three. The springs 235 are cylindrical steel wire springs.

[0030] As an embodiment of the present utility model, a limiting step 237 is provided on the inner side wall of the cylinder body 231 , and the limiting step 237 is used to limit the extreme position of the downward movement of the piston 233 .

[0031] The horizontal surface of the opening of the T-shaped slot 210 is defined as the opening surface, the stepped surface of the T-shaped slot 210 is defined as the inner top surface, and the bottom surface of the inner wall of the T-shaped slot 210 is defined as the bottom surface. The T-shaped nut 220 includes a nut rod and a nut head.

[0032] The working principle of the locking mechanism 200 is:

[0033] Before the moving mechanism moves, the top surface of the nut head of the T-shaped nut 220 is pressed against the inner top surface of the T-shaped slot 210. At this time, the locking mechanism 200 needs to unlock the moving plate and the base plate 100. The external oil source fills the oil hole 232 with high-pressure oil. Under the action of the high-pressure oil, the piston 233 moves downward until it presses against the limit step 237. The spring 235 is compressed, and the piston rod 234 drives the T-shaped nut 220 to move downward. The nut head of the T-shaped nut 220 is separated from the inner top surface of the T-shaped slot 210, and the moving plate and the base plate 100 can move relatively.

[0034] When the position adjustment is completed, the high-pressure oil in the oil hole 232 is released, the spring 235 applies an upward force to the piston 233, the piston 233 moves upward, and the piston rod 234 drives the T-nut 220 to move upward. The nut head of the T-nut 220 is pressed against the inner top surface of the T-shaped slide groove 210, and the movable plate and the base plate 100 are locked, and no relative movement occurs.

[0035] like Figure 2 As shown, the moving assembly includes an x-axis moving mechanism 400 and a y-axis moving mechanism 600, and the moving plate includes an x-axis moving plate 500 and a y-axis moving plate 700. The x-axis moving mechanism 400 is arranged on the substrate 100, and the x-axis moving mechanism 400 is used to drive the x-axis moving plate 500 to move. The y-axis moving mechanism 600 is arranged on the x-axis moving plate 500, and the y-axis moving mechanism 600 is used to drive the y-axis moving plate 700 to move.

[0036] The x-direction moving mechanism 400 includes an x-direction motor 410 and an x-direction lead screw 420 driven by the x-direction motor 410. An x-direction motor mounting seat 430 is provided on the substrate 100. The x-direction motor 410 is mounted on the x-direction motor mounting seat 430. An x-direction lead screw nut is provided on the x-direction lead screw 420. The x-direction lead screw nut is fixed to the x-direction moving plate 500 to drive the x-direction moving plate 500 to move.

[0037] The y-axis moving mechanism 600 includes a y-axis motor 610 and a y-axis lead screw 620 driven by the y-axis motor 610. A y-axis motor mounting seat 630 is arranged on the x-axis moving plate 500. The y-axis motor 610 is mounted on the y-axis motor mounting seat 630. A y-axis lead screw nut is arranged on the y-axis lead screw 620. The y-axis lead screw nut is fixed to the y-axis moving plate 700 to drive the y-axis moving plate 700 to move.

[0038] At least three symmetrically distributed or circumferentially evenly distributed locking mechanisms 200 are arranged between the substrate 100 and the x-axis moving plate 500 to form an x-axis locking mechanism group, and at least three symmetrically distributed or circumferentially evenly distributed locking mechanisms 200 are arranged between the x-axis moving plate 500 and the y-axis moving plate 700 to form a y-axis locking mechanism group.

[0039] As an embodiment of the utility model, in the x-direction locking mechanism group, a plurality of T-shaped grooves 210 extending along the x-direction are arranged on the base plate 100, and one or more T-shaped nuts 220 can be arranged in the T-shaped grooves 210 extending along the x-direction. Each of the T-shaped nuts 220 is correspondingly provided with a locking cylinder 230. Preferably, there are 4 locking cylinders 230, and the 4 locking cylinders 230 are respectively arranged on the four corners of the x-direction movable plate 500; the setting of the y-direction locking mechanism group is consistent with the above setting.

[0040] The working principle of the automatic position adjustment and locking device is as follows:

[0041] The substrate 100 and the x-axis moving plate 500 are unlocked, and the x-axis moving plate 500 and the y-axis moving plate 700 are unlocked. The x-axis motor 410 drives the x-axis screw rod 420 to rotate, and the x-axis screw rod nut arranged on the x-axis screw rod 420 drives the x-axis moving plate 500 to move in the x-axis. When the x-axis moving plate 500 reaches the specified position, the substrate 100 and the x-axis moving plate 500 are locked, and the substrate 100 and the x-axis moving plate 500 remain relatively stationary; the y-axis motor 610 drives the y-axis screw rod 620 to rotate, and the y-axis screw rod nut arranged on the y-axis screw rod 620 drives the y-axis moving plate 700 to move in the left y-axis. When the y-axis moving plate 700 reaches the specified position, the x-axis moving plate 500 and the y-axis moving plate 700 are locked, and the x-axis moving plate 500 and the y-axis moving plate 700 remain relatively stationary.

[0042] A vibration table, such as Figure 1 As shown, it includes the automatic positioning and locking device as described above, and a vibration device 800 and a vibration table 900 driven by the vibration device 800 to vibrate are arranged on the Y-axis moving plate 700 to achieve automatic adjustment of the spatial displacement and automatic locking of the vibration table.

[0043] A vibration table group includes at least three vibration tables as described above. The vibration table group is arranged on a vibration isolation foundation, and through the automatic displacement adjustment and automatic locking functions, multiple vibration tables can be spliced ​​to adapt to test pieces of different sizes.

[0044] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0045] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the utility model. They are not intended to limit the protection scope of the utility model. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. An automatic positioning and locking device, characterized in that: It comprises a base plate (100), a movable plate, a movable assembly and a locking mechanism (200), wherein the movable assembly is used to drive the movable plate to move, and the locking mechanism (200) is used to lock the base plate (100) and the movable plate; The locking mechanism (200) comprises a T-shaped slide groove (210), a T-shaped nut (220) and a locking oil cylinder (230), wherein the T-shaped slide groove (210) is arranged on the base plate (100), the T-shaped nut (220) is slidably arranged in the T-shaped slide groove (210), the locking oil cylinder (230) is arranged on a movable plate, a through groove (300) penetrating the movable plate is arranged in the movable plate, the locking oil cylinder (230) comprises a cylinder body (231) arranged above the through groove (300), and a locking oil cylinder (231) is arranged on the movable plate. An oil hole (232) is provided at the upper part of the cylinder body (231), and oil can be injected into the cylinder body (231) or the oil can be depressurized through the oil hole (232). A piston (233), a piston rod (234) and a spring (235) are provided in the cylinder body (231). One end of the spring (235) is connected to the bottom surface of the piston (233), and the other end of the spring (235) is connected to the bottom inner wall of the cylinder body (231). The piston rod (234) passes through the through groove (300) and is connected to the T-shaped nut (220).

2. The automatic positioning and locking device according to claim 1, characterized in that: A plurality of spring winding columns (236) are arranged at the bottom of the cylinder body (231), and the springs (235) are wound on the spring winding columns (236). The number of the springs (235) is equal to the number of the spring winding columns (236), and the plurality of spring winding columns (236) are evenly distributed circumferentially with the piston rod (234) as the center.

3. The automatic positioning and locking device according to claim 2, characterized in that: The number of the springs (235) is greater than or equal to three.

4. The automatic position-adjusting locking device according to claim 1, characterized in that: A limiting step (237) is provided on the inner side wall of the cylinder body (231), and the limiting step (237) is used to limit the extreme position of the downward movement of the piston (233).

5. The automatic position-adjusting locking device according to claim 1, characterized in that: The piston rod (234) is threadedly connected to the T-shaped nut (220).

6. The automatic position-adjusting locking device according to claim 1, characterized in that: The moving assembly comprises an x-direction moving mechanism (400) and a y-direction moving mechanism (600); the moving plate comprises an x-direction moving plate (500) and a y-direction moving plate (700); the x-direction moving mechanism (400) is arranged on a substrate (100); the x-direction moving mechanism (400) is used to drive the x-direction moving plate (500) to move; the y-direction moving mechanism (600) is arranged on the x-direction moving plate (500); the y-direction moving mechanism (600) is used to drive the y-direction moving plate (700) to move.

7. The automatic position-adjusting and locking device according to claim 6, characterized in that: The x-direction moving mechanism (400) comprises an x-direction motor (410) and an x-direction lead screw (420) driven by the x-direction motor (410); an x-direction lead screw nut is arranged on the x-direction lead screw (420); the x-direction lead screw nut is fixed to the x-direction moving plate (500) so as to drive the x-direction moving plate (500) to move; the structure of the y-direction moving mechanism (600) is consistent with that of the x-direction moving mechanism (400).

8. The automatic position-adjusting and locking device according to claim 6, characterized in that: At least three symmetrically distributed or circumferentially evenly distributed locking mechanisms (200) are arranged between the base plate (100) and the x-direction moving plate (500) to form an x-direction locking mechanism group, and at least three symmetrically distributed or circumferentially evenly distributed locking mechanisms (200) are arranged between the x-direction moving plate (500) and the y-direction moving plate (700) to form a y-direction locking mechanism group.

9. A vibration table, characterized in that: It comprises the automatic positioning and locking device as claimed in any one of claims 6 to 8, wherein a vibration device (800) and a vibration table (900) driven by the vibration device (800) to vibrate are arranged on the Y-direction movable plate (700).

10. A vibration table assembly, characterized in that: Comprising at least three vibration tables as claimed in claim 9.

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