Adjustable vibration test clamp

Abstract

The utility model relates to the technical field of vibration test equipment, in particular to an adjustable vibration test clamp, which comprises a test bench and a plurality of positioning jacks arranged on the test bench, and further comprises positioning insertion blocks inserted in the positioning jacks, and a plurality of clamping blocks inserted in the positioning jacks, and the clamping part is arranged at the top of the positioning insertion block and is used for clamping and fixing an object to be tested. According to the utility model, the plurality of clamping parts are matched with the plurality of fixing parts arranged on the test bed for use, the transverse toothed bar can be completely contracted in the transverse groove by upwards shifting the vertical toothed bar, so that the positioning insertion block can be conveniently inserted into the positioning insertion hole, then the vertical toothed bar is loosened, and under the elastic force of the spring, the transverse toothed bar can be completely contracted in the transverse groove. The vertical toothed bar moves downwards to be reset, one end of the transverse toothed bar is inserted into a transverse inserting groove in the positioning inserting block in a penetrating mode, fixed installation of the clamping part is achieved, operation is easy and efficient, and the influence of the use frequency on the elasticity of the spring is extremely small.

Description

TECHNICAL FIELD

[0001] The utility model relates to vibration test equipment technical field especially relates to an adjustable vibration test fixture. BACKGROUND

[0002] The vibration test fixture is used for clamping and fixing electronic equipment, mechanical structure, automobile parts and the like on a vibration test table in a vibration test, so that the to-be-tested object is rigidly connected with the test table, thereby improving the precision of experimental data. The connection between the vibration test fixture and the vibration test table is generally a bolted connection, so as to facilitate the adjustment of the position of the test fixture on the test table, and facilitate the disassembly and installation of the test fixture.

[0003] The vibration test is prone to looseness of the bolt. In order to improve the fixing effect of the bolt, the torque of the bolt is generally increased. However, since the bolt is repeatedly used, the fatigue degree of the thread will gradually increase with the increase of the number of times of repeated use of the bolt, thereby shortening the service life of the bolt and increasing the replacement frequency, which increases the test investment cost. SUMMARY

[0004] Therefore, the utility model provides an adjustable vibration test fixture to solve the problem that the fatigue degree of the thread gradually increases with the increase of the number of times of repeated use of the bolt, thereby shortening the service life of the bolt.

[0005] To achieve the above purpose, the utility model provides an adjustable vibration test fixture, which comprises a test table and a plurality of positioning insertion holes arranged on the test table, and further comprises:

[0006] A positioning plug is inserted into the positioning insertion hole.

[0007] A clamping part is arranged on the top of the positioning plug, and the clamping part is used for clamping and fixing the object to be tested.

[0008] A fixing part is arranged in the positioning insertion hole, and the fixing part is used for fixing the positioning plug in the positioning insertion hole. The plurality of positioning insertion holes are used for adjusting the position of the positioning plug on the test table.

[0009] Preferably, the fixing part comprises:

[0010] A horizontal groove is arranged on one of the vertical faces of the positioning insertion hole, and a horizontal tooth rod is slidably sleeved in the horizontal groove.

[0011] A hidden groove is arranged on the top of the test table, and a vertical groove is arranged in the hidden groove. A vertical tooth rod is slidably sleeved in the vertical groove.

[0012] A spring is arranged between the bottom of the vertical groove and the bottom of the vertical tooth rod.

[0013] A gear slot is arranged between the horizontal slot and the vertical slot, and a transmission gear is rotatably arranged in the gear slot, and the tooth surface of the transmission gear is engaged with the tooth surface of the vertical tooth rod and the horizontal tooth rod respectively.

[0014] Preferably, the fixing part further comprises a horizontal slot arranged on one of the vertical surfaces of the positioning plug, and the horizontal slot is matched with one end of the horizontal tooth rod.

[0015] Preferably, the vertical slot and the horizontal slot are distributed in the axial direction of the transmission gear, and the vertical slot is perpendicular to the horizontal slot.

[0016] Preferably, the spring sliding sleeve is arranged in the vertical slot, and the two ends of the spring are fixed on the bottom of the vertical slot and the bottom of the vertical tooth rod respectively.

[0017] Preferably, one end of the vertical tooth rod extends into the hidden slot through the top end of the vertical slot, and a convex edge is arranged at the boundary of the top of the vertical tooth rod.

[0018] Preferably, the clamping part comprises:

[0019] A clamping seat is rotatably arranged on the top of the positioning plug, and a placing slot is arranged on one of the vertical surfaces of the clamping seat.

[0020] A pressing block is slidingly arranged in the placing slot.

[0021] A pushing member is arranged for pushing the pressing block to vertically and linearly lift in the placing slot.

[0022] Preferably, the pushing member comprises a screw hole arranged between the top of the placing slot and the top of the clamping seat, a screw rod is threadedly arranged in the screw hole, the bottom end of the screw rod is rotatably arranged in the pressing block, a compression spring is slidingly arranged on the top end of the screw rod, a limiting plate is fixed on the top of the screw rod, and the limiting plate is used for limiting the compression spring on the top of the clamping seat and the top end of the screw rod.

[0023] The utility model discloses beneficial effect: the utility model discloses through a plurality of clamping parts and set up a plurality of fixed parts on the test bench cooperation uses, can be through to the upward pull vertical tooth pole, makes the horizontal tooth pole complete shrink in the horizontal groove, in order to conveniently insert the positioning plug -in block into the positioning plug -in hole, then loosen the vertical tooth pole, under the spring elasticity effect, make the vertical tooth pole lower reset, and make the one end of horizontal tooth pole be inserted in the horizontal slot on the positioning plug -in block, realize the installation of clamping part, simple and efficient operation, and the elasticity of spring is influenced extremely little by use frequency, greatly reduces the replacement frequency of fixed part, saves the replacement cost of part, and through the clamping part is fixed in the fixed part of different position, and cooperation clamping seat and the rotation design between positioning plug -in block, can adjust the position of clamping part according to the length of the article to be fixed, make a plurality of clamping parts can be evenly distributed around the article to be fixed, realize a plurality of clamping parts to hold and fix the article together, improve the effect and stability of article fixation, and can fix different size articles and fix some articles of different sex plane shape. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the utility model or the prior art, the following will briefly introduce the drawings needed to be used in embodiment or prior art description, and obviously, the drawings in the following description are only the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0025] Figure 1 It is the three-dimensional schematic diagram of the utility model Figure 1 ;

[0026] Figure 2 It is the three-dimensional schematic diagram of the utility model Figure 2 ;

[0027] Figure 3 It is the three-dimensional schematic diagram of the utility model Figure 3 ;

[0028] Figure 4 It is the three-dimensional schematic diagram of the utility model Figure 4 ;

[0029] Figure 5 It is the three-dimensional schematic diagram of the utility model

[0030] Marked as in the drawing:

[0031] 1, test bench; 2, fixed part; 21, dark groove; 22, vertical groove; 23, vertical tooth rod; 24, gear groove; 25, transmission tooth; 26, horizontal groove; 27, horizontal tooth rod; 28, spring; 29, horizontal insertion groove; 3, clamping part; 31, clamping seat; 32, placement groove; 33, pressing block; 34, pusher; 341, screw hole; 342, screw rod; 343, compression spring; 344, limiting plate; 4, positioning jack; 5, positioning plug. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below with specific examples.

[0033] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present application should be understood as the usual meaning understood by those skilled in the art to which the present application belongs. The "first", "second" and similar words used in the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Include" or "contain" and similar words mean that the elements or objects before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connection" or "connected" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0034] As shown in Figures 1 to 5 An adjustable vibration test fixture, comprising a test bench 1 and a plurality of positioning jacks 4 provided on the test bench 1, the adjustable vibration test fixture further comprising:

[0035] A positioning plug 5 inserted into the positioning jack 4.

[0036] A clamping part 3 provided on the top of the positioning plug 5, the clamping part 3 being used to clamp and fix the object to be tested.

[0037] A fixed part 2 provided in the positioning jack 4, the fixed part 2 being used to fix the positioning plug 5 in the positioning jack 4, and the plurality of positioning jacks 4 being used to adjust the position of the positioning plug 5 on the test bench 1.

[0038] As shown in Figure 2 and Figure 5 The fixed part 2 comprises:

[0039] A horizontal slot 26 is arranged on one vertical surface of the positioning plug hole 4, a horizontal toothed rod 27 is slidingly sleeved in the horizontal slot 26, and one end of the horizontal toothed rod 27 in the initial state penetrates one end of the horizontal slot 26 and extends into the positioning plug hole 4.

[0040] A vertical slot 22 is arranged in a dark slot 21 arranged on the top of the test bench 1, and a vertical toothed rod 23 is slidingly sleeved in the vertical slot 22.

[0041] A spring 28 is arranged between the bottom of the vertical slot 22 and the bottom of the vertical toothed rod 23, the spring 28 is slidingly sleeved in the vertical slot 22, and the two ends of the spring 28 are fixed on the bottom of the vertical slot 22 and the bottom of the vertical toothed rod 23 respectively.

[0042] A gear slot 24 is arranged between the horizontal slot 26 and the vertical slot 22, a transmission tooth 25 is rotatably arranged in the gear slot 24, and the tooth surfaces of the transmission tooth 25 are engaged with the tooth surfaces of the vertical toothed rod 23 and the horizontal toothed rod 27 respectively.

[0043] The fixed part 2 further comprises a horizontal insertion slot 29 arranged on one vertical surface of the positioning plug 5, and the horizontal insertion slot 29 is matched with one end of the horizontal toothed rod 27.

[0044] Since one end of the horizontal toothed rod 27 in the initial state penetrates one end of the horizontal slot 26 and extends into the positioning plug hole 4, during installation, a positioning plug hole 4 is first selected, then the vertical toothed rod 23 corresponding to the selected positioning plug hole 4 is pulled upward, the upward moving vertical toothed rod 23 drives the transmission tooth 25 to rotate, the rotating transmission tooth 25 drives the horizontal toothed rod 27 to move linearly, and the horizontal toothed rod 27 is retracted into the horizontal slot 26, until the horizontal toothed rod 27 is completely retracted into the horizontal slot 26, the upward pulling of the vertical toothed rod 23 is stopped and the vertical toothed rod 23 is kept stationary, in this process, the spring 28 is elastically deformed and accumulates elastic force, then the horizontal insertion slot 29 on the positioning plug 5 is opposite to the horizontal toothed rod 27, the positioning plug 5 is inserted into the positioning plug hole 4, and after the positioning plug 5 is completely inserted into the positioning plug hole 4, the vertical toothed rod 23 is released, the elastic force accumulated by the spring 28 drives the vertical toothed rod 23 to move downward and reset, through the power transmission of the transmission tooth 25, the horizontal toothed rod 27 is driven to approach the positioning plug hole 4, until the vertical toothed rod 23 is completely reset and stationary, at this time, one end of the horizontal toothed rod 27 is inserted into the horizontal insertion slot 29 on the positioning plug 5, so that the positioning plug 5 is fixed in the positioning plug hole 4, since the clamping part 3 is arranged on the top of the positioning plug 5, so the operation of fixing the clamping part 3 on the top of the test bench 1 is completed, the efficiency of disassembling or installing the clamping part 3 is improved, and the influence of the number of repeated uses on the elasticity attenuation of the spring 28 is far less than the influence of the number of repeated uses on the fatigue degree of the screw thread.

[0045] As Figure 2As shown, the vertical slots 22 and the horizontal slots 26 are distributed in axial staggered manner along the transmission teeth 25, and the vertical slots 22 are perpendicular to the horizontal slots 26, so designed to avoid the problem of mutual interference between the vertical tooth rods 23 and the horizontal tooth rods 27.

[0046] As shown, the vertical tooth rods 23 are inserted into the vertical slots 22 and extend into the dark slots 21, and the boundary of the top of the vertical tooth rods 23 is fixed with a convex edge, so designed to provide a force point for the user to firmly pinch the top of the vertical tooth rods 23 and pull them out. Figure 2 Figure 5 As shown, the clamping part 3 includes:

[0047] As shown, the clamping part 3 includes: Figure 3

[0048] The clamping seat 31 is rotatably arranged on the top of the positioning plug 5, and a placing slot 32 is arranged on a vertical surface of the clamping seat 31.

[0049] The pressing block 33 is slidably arranged in the placing slot 32.

[0050] The pushing member 34 is arranged for pushing the pressing block 33 to vertically and linearly ascend and descend in the placing slot 32.

[0051] The initial position of the pressing block 33 is at the top of the placing slot 32, and when clamping the object to be tested, the boundary of the object to be tested is arranged in the placing slot 32 and is attached to the vertical surface of the placing slot 32, and finally the pushing member 34 is operated to push the pressing block 33 downward until the pressing block 33 clamps and fixes the boundary of the object to be tested in the placing slot 32, and the clamping seat 31 can be rotated circumferentially to make the vertical surface of the placing slot 32 correspond to the boundary of the object to be tested, so as to fix the object to be tested with different sizes and different plane shapes, thereby expanding the application range.

[0052] As shown, the pushing member 34 includes a screw hole 341 arranged between the top of the placing slot 32 and the top of the clamping seat 31, a screw rod 342 is screwedly arranged in the screw hole 341, the bottom end of the screw rod 342 is rotatably arranged in the pressing block 33, a compression spring 343 is slidably sleeved on the top end of the outer portion of the screw rod 342, and a limiting plate 344 is fixedly arranged on the top of the screw rod 342, and the limiting plate 344 is used to limit the compression spring 343 on the top of the clamping seat 31 and the top end of the outer portion of the screw rod 342, so designed that the screw rod 342 can be screwed to move downward and push the pressing block 33 to move downward synchronously until the boundary of the object to be tested is tightly fixed in the placing slot 32, and when the screw rod 342 is not screwed, the elastic force accumulated by the compression spring 343 can increase the pressure between the screw threads of the screw rod 342 and the inner screw threads of the screw hole 341, thereby increasing the friction therebetween and improving the fixing effect of the screw rod 342. Figure 4 ​​​

[0053] Working principle: because the one end of the horizontal tooth rod 27 passes through one end in the horizontal slot 26 and extends to the positioning hole 4, in the installation, first select a positioning hole 4, then pull up the vertical tooth rod 23 corresponding to the selected positioning hole 4, the upward vertical tooth rod 23 drives the transmission tooth 25 to rotate, the rotating transmission tooth 25 drives the horizontal tooth rod 27 to move linearly, and the horizontal tooth rod 27 is retracted into the horizontal slot 26, until the horizontal tooth rod 27 is completely retracted in the horizontal slot 26, stop pulling up the vertical tooth rod 23 and keep the vertical tooth rod 23 stationary, in the process, the spring 28 occurs recoverable tensile deformation and accumulates elastic force, then the horizontal slot 29 on the positioning plug 5 is opposite to the horizontal tooth rod 27, then the positioning plug 5 is inserted into the positioning hole 4, and after the positioning plug 5 is completely inserted into the positioning hole 4, the vertical tooth rod 23 is released, the elastic force of the spring 28 drives the vertical tooth rod 23 to move downward and reset, through the power transmission of the transmission tooth 25, the horizontal tooth rod 27 is driven to be close to the positioning hole 4, until the vertical tooth rod 23 is completely reset and stationary, at this time, one end of the horizontal tooth rod 27 is inserted into the horizontal slot 29 on the positioning plug 5, so that the positioning plug 5 is fixed in the positioning hole 4, because the clamping part 3 is arranged at the top of the positioning plug 5, so the operation of fixing the clamping part 3 on the top of the test bench 1 is completed, and when clamping the object to be tested, the boundary of the object to be tested is placed in the placing groove 32, and the boundary of the object to be tested is attached to the vertical surface in the placing groove 32, finally the pushing piece 34 is controlled to push the pressing block 33 downward, until the pressing block 33 clamps and fixes the boundary of the object to be tested in the placing groove 32, the placing groove 32 can be rotated circumferentially to make the vertical surface in the placing groove 32 correspond to the boundary of the object to be tested, so that the object to be tested of different sizes and different plane shapes can be fixed, and the application range is expanded.

[0054] It should be understood by those of ordinary skill in the art that the discussion of any of the above embodiments is merely exemplary and is not intended to suggest the scope (including claims) of the present application is limited to these examples; under the idea of the present application, the above embodiments or technical features in different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in details for the sake of brevity.

[0055] The present application is intended to cover all such alternatives, modifications, and variations as fall within the broad scope of the appended claims. Accordingly, any and all such alternatives, modifications, equivalents, improvements and the like are intended to be encompassed by the present application.

Claims

1. An adjustable vibration test fixture comprising a test table (1) and a plurality of positioning sockets (4) provided on the test table (1), characterized in that, The adjustable vibration test fixture further comprises: a positioning plug (5) inserted into the positioning hole (4); a clamping part (3) arranged on the top of the positioning plug (5), which is used for clamping the object to be tested; a fixing part (2) arranged in the positioning hole (4), which is used for fixing the positioning plug (5) in the positioning hole (4), and a plurality of positioning holes (4) are used for adjusting the position of the positioning plug (5) on the test table (1).

2. The adjustable vibration test fixture of claim 1, wherein, The fixing part (2) comprises: a horizontal slot (26) arranged on one of the vertical faces of the positioning hole (4), and a horizontal tooth rod (27) is slidingly sleeved in the horizontal slot (26); a dark groove (21) arranged on the top of the test table (1), a vertical slot (22) is arranged in the dark groove (21), a vertical tooth rod (23) is slidingly sleeved in the vertical slot (22); a spring (28) arranged between the bottom of the vertical slot (22) and the bottom of the vertical tooth rod (23); a gear slot (24) arranged between the horizontal slot (26) and the vertical slot (22), a transmission tooth (25) is rotatably arranged in the gear slot (24), and the tooth surfaces of the transmission tooth (25) are respectively engaged with the tooth surfaces of the vertical tooth rod (23) and the horizontal tooth rod (27).

3. The adjustable vibration test fixture of claim 2, wherein, The fixing part (2) further comprises a horizontal insertion slot (29) arranged on one of the vertical faces of the positioning plug (5), which is matched with one end of the horizontal tooth rod (27).

4. The adjustable vibration test fixture of claim 3, wherein, The vertical slot (22) and the horizontal slot (26) are distributed in the axial direction of the transmission tooth (25) and are perpendicular to each other.

5. The adjustable vibration test fixture of claim 4, wherein, The spring (28) is slidingly sleeved in the vertical slot (22), and the two ends of the spring (28) are respectively fixed on the bottom of the vertical slot (22) and the bottom of the vertical tooth rod (23).

6. The adjustable vibration test fixture of claim 5, wherein, One end of the vertical tooth rod (23) penetrates through the top end of the vertical slot (22) and extends into the dark groove (21), and a convex edge is fixedly arranged at the boundary of the top of the vertical tooth rod (23).

7. The adjustable vibration test fixture of claim 6, wherein, The clamping part (3) comprises: a clamping seat (31) rotatably arranged on the top of the positioning plug (5), and a placing slot (32) is arranged on one of the vertical faces of the clamping seat (31); a pressing block (33) slidingly arranged in the placing slot (32); a pushing member (34) for pushing the pressing block (33) to vertically and linearly ascend in the placing slot (32).

8. The adjustable vibration test fixture of claim 7, wherein, The pushing member (34) comprises a screw hole (341) arranged between the top of the placing slot (32) and the top of the clamping seat (31), a screw rod (342) is threadedly installed in the screw hole (341), the bottom end of the screw rod (342) is rotatably arranged in the pressing block (33), a compression spring (343) is slidingly sleeved on the top end of the outer part of the screw rod (342), a limiting plate (344) is fixedly arranged on the top of the screw rod (342), and the limiting plate (344) is used for limiting the compression spring (343) on the top of the clamping seat (31) and the top end of the outer part of the screw rod (342).

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