Clamp for vibration test of electronic measuring instrument

Abstract

The utility model discloses a clamp used for a vibration test of an electronic measuring instrument, which comprises a base and a plurality of groups of clamping blocks, the number of each group of clamping blocks is two, the surfaces of the different groups of clamping blocks are provided with clamping grooves with different shapes, one side of each clamping block far away from the clamping groove is fixedly connected with a fixing assembly, and the fixing assembly is fixedly connected with the base. Two vertical plates are arranged on the two sides of the upper surface of the base, and a plurality of inserting holes used for inserting fixing assemblies are formed in the two vertical plates. The base, the multiple sets of clamping blocks, the two vertical plates, the transverse moving assembly and the driving assembly are arranged, the number of each set of clamping blocks is two, the fixing assembly is arranged on the surface of each clamping block, the clamping blocks and the vertical plates can be fixedly connected through the fixing assemblies, and the clamping blocks can also be detached; clamping grooves with different shapes are formed in the surfaces of the clamping blocks in different groups and are used for fixing different types of electronic measuring instruments, so that the universality of the device is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration testing of electronic measuring instruments, in particular to a clamp used for vibration testing of electronic measuring instruments. Background Art

[0002] The vibration test of electronic measuring instruments is a test conducted on the physical object or model subjected to vibration to test its vibration resistance in the expected use environment. The purpose is to test whether the electronic measuring instrument can withstand the vibration environment during transportation or use during its life cycle by simulating a series of vibration phenomena. It can also determine the requirements for product design and function. Therefore, the use of fixtures is required for the vibration test of electronic measuring instruments.

[0003] However, existing fixtures have the following drawbacks: They can only hold one electronic measuring instrument at a time, resulting in low testing efficiency; secondly, the fixture type is customized based on the shape of the electronic measuring instrument, resulting in limited versatility; and thirdly, the fixture is connected to the vibration table of the vibration testing machine using pre-set threaded holes and bolts, making it difficult to adapt to vibration tables of different sizes. Therefore, to address these shortcomings, the present utility model proposes a fixture for vibration testing of electronic measuring instruments. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a fixture for vibration testing of electronic measuring instruments.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a fixture for vibration testing of electronic measuring instruments, comprising a base and several groups of clamping blocks, each group of the clamping blocks having two blocks, and the surfaces of the clamping blocks of different groups are provided with slots of different shapes, each of the clamping blocks is fixedly connected to a fixing component on the side away from the slot, two vertical plates are provided on both sides of the upper surface of the base, and a plurality of sockets for inserting the fixing components are provided on the two vertical plates, a transverse movement component for driving the two vertical plates to move is provided inside the base, a driving component for driving the transverse movement component to move is provided on one side of the base, a slide groove is provided at the bottom ends of both sides of the base, and an installation component is provided inside the slide groove.

[0006] Furthermore, the fixing assembly includes an insert block fixedly connected to the clamping block, the insert block is inserted into the inside of the socket, and grooves are provided at the top and bottom ends of the insert block, the inner side walls of the grooves are fixedly connected to springs, and the other end of the spring is fixedly connected to a latch tooth, and the end of the latch tooth located outside the groove is latched to the surface of the vertical plate.

[0007] Furthermore, a baffle is fixed on the surface of the inserting block close to one end of the clamping block, and the distance between the baffle and the latching teeth is the thickness of the vertical plate.

[0008] Furthermore, a strip-shaped opening is provided on the top of the base, and the transverse movement assembly includes a bidirectional screw rod rotatably connected to the side wall of the base through a bearing, and two internal thread blocks are rotatably connected to the surfaces of both ends of the bidirectional screw rod, and vertical rods are fixed on the top of the two internal thread blocks, and the two vertical rods pass through the strip-shaped opening and are fixedly connected to the two vertical plates respectively, and the two vertical rods are slidably connected to the strip-shaped opening.

[0009] Furthermore, the drive assembly includes a worm gear fixed to the surface of the bidirectional screw and a vertical shaft passing through the top wall of the base. The vertical shaft is rotatably connected to the top wall of the base through a bearing. A worm and a handwheel are respectively fixed to the bottom and top ends of the vertical shaft, and the worm is engaged with the worm gear.

[0010] Furthermore, the mounting assembly includes a slide plate slidably connected to the slide slot, an end of the slide plate located outside the slide slot is fixedly connected to an end plate, an extrusion screw is passed through the middle of the end plate and threadedly connected, and a knob is fixed to the end of the extrusion screw away from the base.

[0011] Furthermore, a locking bolt passes through and is threadedly connected to the bottom wall of the slide groove.

[0012] Beneficial effects of the utility model:

[0013] 1. When in use, the utility model is a fixture for vibration testing of electronic measuring instruments, which is provided with a base, several groups of clamping blocks, two vertical plates, a transverse movement assembly and a driving assembly. Each group of clamping blocks has two, and each clamping block surface is provided with a fixing assembly, by which the clamping block can be fixedly connected to the vertical plate, and the clamping block can also be disassembled. Different groups of clamping blocks have grooves of different shapes on their surfaces for fixing different types of electronic measuring instruments, thereby realizing the versatility of the device, and the two vertical plates can be driven close to each other by the driving assembly and the transverse movement assembly, so that multiple electronic measuring instruments can be clamped and fixed at the same time by multiple groups of clamping blocks, more electronic measuring instruments can be tested at a single time, and the detection efficiency is improved.

[0014] 2. When the utility model is in use, the fixture for vibration testing of electronic measuring instruments is provided with a mounting assembly, through which the base can be quickly fixed on the vibration table. The position of the mounting assembly can be adjusted so that it can be used for vibration tables of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the description of the specific implementation methods. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1: The overall three-dimensional diagram of the utility model;

[0017] Figure 2 : An overall cross-sectional view of the utility model;

[0018] Figure 3 : A top view of the utility model;

[0019] Figure 4 :The utility model Figure 2 Enlarged view of point A in the middle.

[0020] The reference numerals are as follows:

[0021] 1. Base; 101. Strip mouth; 102. Slide groove; 2. Clamping block; 3. Fixing assembly; 31. Insert block; 32. Groove; 33. Spring; 34. Gear; 4. Vertical plate; 41. Socket; 5. Transverse movement assembly; 51. Bidirectional screw; 52. Internal thread block; 53. Vertical rod; 6. Drive assembly; 61. Worm gear; 62. Vertical shaft; 63. Worm; 64. Handwheel; 7. Mounting assembly; 71. Slide plate; 72. End plate; 73. Extrusion screw; 74. Locking bolt. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying 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 embodiments 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 making creative efforts are within the scope of protection of the present invention.

[0023] like Figures 1-4 As shown, a fixture for vibration testing of electronic measuring instruments is provided, comprising a base 1 and several groups of clamping blocks 2, each group of clamping blocks 2 having two members, and different groups of clamping blocks 2 have surfaces with slots of different shapes, and each clamping block 2 is fixedly connected to a fixing component 3 on the side away from the slot, two vertical plates 4 are provided on both sides of the upper surface of the base 1, and a plurality of sockets 41 for inserting the fixing components 3 are provided on the two vertical plates 4, a transverse movement component 5 for driving the two vertical plates 4 to move is provided inside the base 1, a driving component 6 for driving the transverse movement component 5 to move is provided on one side of the base 1, a slide groove 102 is provided at the bottom end of both sides of the base 1, and an installation component 7 is provided inside the slide groove 102.

[0024] The fixing assembly 3 includes an insert block 31 fixedly connected to the clamping block 2, the insert block 31 is inserted into the inside of the socket 41, and grooves 32 are provided at the top and bottom ends of the insert block 31, the inner side walls of the grooves 32 are fixedly connected to springs 33, and the other end of the spring 33 is fixedly connected to a latch tooth 34, and the end of the latch tooth 34 located outside the groove 32 is latched on the surface of the vertical plate 4.

[0025] When installing the clamping block 2, you can first squeeze the latch 34 back into the groove 32, and then pass the insert block 31 through the insertion hole 41. When the latch 34 completely passes through the insertion hole 41, the spring 33 pushes the latch 34 out from the inside of the groove 32, so that the latch 34 is stuck on the surface of the vertical plate 4.

[0026] A baffle is fixed on the surface of the inserting block 31 close to one end of the clamping block 2 , and the distance between the baffle and the latching teeth 34 is the thickness of the vertical plate 4 .

[0027] The vertical plate 4 can be clamped in the middle by the baffle and the latch 34, thereby achieving a fixed connection between the fixing component 3 and the vertical plate 4. When the fixing component 3 needs to be disassembled to replace the clamping block 2, the latch 34 is first squeezed back into the groove 32, and then the insert block 31 is pulled out of the socket 41.

[0028] A strip-shaped opening 101 is provided at the top of the base 1. The transverse movement assembly 5 includes a bidirectional screw rod 51 rotatably connected to the side wall of the base 1 through a bearing. Two end surfaces of the bidirectional screw rod 51 are rotatably connected to two internal thread blocks 52. Vertical rods 53 are fixed to the tops of the two internal thread blocks 52. The two vertical rods 53 pass through the strip-shaped opening 101 and are respectively fixedly connected to the two vertical plates 4, and the two vertical rods 53 are slidably connected to the strip-shaped opening 101.

[0029] By rotating the bidirectional screw rod 51 forward or reverse, the bidirectional screw rod 51 can drive the two internal thread blocks 52 to move along the strip-shaped opening 101, and make the two internal thread blocks 52 approach or move away from each other, and the vertical rod 53 will drive the two vertical plates 4 to approach or move away from each other. When the two vertical plates 4 are close to each other, the two clamping blocks 2 in the same group can be used to clamp and fix the electronic measuring instrument.

[0030] The driving assembly 6 includes a worm gear 61 fixed to the surface of the bidirectional screw 51 and a vertical shaft 62 passing through the top wall of the base 1. The vertical shaft 62 is rotatably connected to the top wall of the base 1 through a bearing. A worm 63 and a handwheel 64 are fixed to the bottom and top ends of the vertical shaft 62 respectively, and the worm 63 is engaged with the worm gear 61.

[0031] Under the meshing drive of worm 63 and worm wheel 61, turning handwheel 64 on the outside of base 1 can drive the bidirectional screw 51 to rotate. Worm 63 and worm wheel 61 are self-locking, preventing vertical shaft 62 from rotating freely under vibration. In this embodiment, a compression bolt is threaded through the side of handwheel 64 and is further secured by tightening the compression bolt against the upper surface of base 1.

[0032] The mounting assembly 7 includes a slide plate 71 slidably connected to the slide groove 102. The end of the slide plate 71 outside the slide groove 102 is fixedly connected to an end plate 72. An extrusion screw rod 73 passes through the middle of the end plate 72 and is threadedly connected. A knob is fixed to the end of the extrusion screw rod 73 away from the base 1.

[0033] A locking bolt 74 passes through and is threadedly connected to the bottom wall of the sliding groove 102 .

[0034] When fixing the base 1 to the vibration table, place the base 1 on the surface of the vibration table, then use the slide 71 to approach the vibration table, then tighten the locking bolt 74 to fix the slide 71, and then turn the extrusion screw 73 to press it against the side of the vibration table to achieve fixed installation of the device.

[0035] Working principle: first fix the device to the surface of the vibration table of the vibration testing machine through the installation component 7, and then install the corresponding clamping blocks 2 in the sockets 41 of the two vertical plates 4 according to the electronic measuring instrument to be tested. During installation, the two symmetrical clamping blocks 2 on the two vertical plates 4 need to have the same shape (that is, two clamping blocks 2 in the same group). After the installation is completed, place the electronic measuring instrument to be tested between the two clamping blocks 2, and then drive the two vertical plates 4 closer to each other by turning the handwheel 64, so that the two clamping blocks 2 in the same group clamp and fix the electronic measuring instrument, then tighten the extrusion bolt on the handwheel 64 to further fix the handwheel 64 to start the vibration test.

[0036] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, numerous modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A fixture for vibration testing of electronic measuring instruments, characterized by: The invention comprises a base (1) and several groups of clamping blocks (2), wherein each group of the clamping blocks (2) has two clamping blocks (2), and different groups of clamping blocks (2) have surfaces with slots of different shapes, and each clamping block (2) is fixedly connected to a fixing assembly (3) on a side away from the slot, two vertical plates (4) are provided on both sides of the upper surface of the base (1), and a plurality of jacks (41) for inserting the fixing assembly (3) are provided on the two vertical plates (4), a transverse moving assembly (5) for driving the two vertical plates (4) to move is provided inside the base (1), a driving assembly (6) for driving the transverse moving assembly (5) to move is provided on one side of the base (1), a slide groove (102) is provided at the bottom ends of both sides of the base (1), and a mounting assembly (7) is provided inside the slide groove (102).

2. A fixture for vibration testing of electronic measuring instruments according to claim 1, characterized in that: The fixing assembly (3) comprises an insert block (31) fixedly connected to the clamping block (2), the insert block (31) being inserted into the inside of the socket (41), and grooves (32) being provided at the top and bottom ends of the insert block (31), springs (33) being fixedly connected to the inner side walls of the grooves (32), and a latching tooth (34) being fixedly connected to the other end of the spring (33), and one end of the latching tooth (34) being located outside the groove (32) being latched to the surface of the vertical plate (4).

3. A fixture for vibration testing of electronic measuring instruments according to claim 2, characterized in that: A baffle is fixed on the surface of the insert block (31) close to one end of the clamping block (2), and the distance between the baffle and the latching teeth (34) is the thickness of the vertical plate (4).

4. The fixture for vibration testing of electronic measuring instruments according to claim 1, characterized in that: A strip-shaped opening (101) is provided on the top of the base (1); the transverse movement assembly (5) comprises a bidirectional screw rod (51) rotatably connected to the side wall of the base (1) via a bearing; two end surfaces of the bidirectional screw rod (51) are rotatably connected to two internal thread blocks (52); vertical rods (53) are fixed to the tops of the two internal thread blocks (52); the two vertical rods (53) pass through the strip-shaped opening (101) and are fixedly connected to the two vertical plates (4) respectively, and the two vertical rods (53) are slidably connected to the strip-shaped opening (101).

5. The fixture for vibration testing of electronic measuring instruments according to claim 4, characterized in that: The driving assembly (6) comprises a worm gear (61) fixed to the surface of the bidirectional screw (51) and a vertical shaft (62) penetrating the top wall of the base (1); the vertical shaft (62) is rotatably connected to the top wall of the base (1) via a bearing; a worm (63) and a handwheel (64) are fixed to the bottom and top ends of the vertical shaft (62), respectively; the worm (63) is meshed with the worm gear (61).

6. The fixture for vibration testing of electronic measuring instruments according to claim 1, characterized in that: The mounting assembly (7) comprises a slide plate (71) slidably connected to the slide groove (102); one end of the slide plate (71) located outside the slide groove (102) is fixedly connected to an end plate (72); an extrusion screw rod (73) passes through the middle of the end plate (72) and is threadedly connected; and a knob is fixed to the end of the extrusion screw rod (73) away from the base (1).

7. The fixture for vibration testing of electronic measuring instruments according to claim 6, characterized in that: A locking bolt (74) passes through and is threadedly connected to the bottom wall of the sliding groove (102).

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