Metal base for a test fixture

Abstract

The utility model discloses a kind of metal base for test fixture, specifically related to metal base technical field, including clamping mechanism, lifting assembly, installation platform and fixed plate, the clamping mechanism is below installation fixed plate, and the fixed plate is below installation lifting assembly, the lifting assembly is below installation installation platform, and the clamping mechanism contains drive assembly, sliding assembly and positioning assembly, the drive assembly is above installation sliding assembly, the side of the sliding assembly is installation positioning assembly, it is in drive assembly, the rotation of bidirectional screw rod can be driven two groups T type sliding plate along limit rod relative horizontal motion by thread sleeve, to change the interval between two groups sliding assembly, adapt to different width test fixture, adjusting spring in limit component has elastic deformation ability, when baffle is close to fixture side wall, spring can be automatically compressed according to fixture side wall thickness, provide adaptive clamping force for different thickness fixture.

Description

Technical Field

[0001] This utility model relates to the field of metal base technology, and more specifically, to a metal base for a testing fixture. Background Technology

[0002] Traditional metal bases have significant limitations in adaptability, often only able to fix test fixtures of specific sizes. When faced with fixtures of different specifications, the entire set of fixtures needs to be replaced. At the same time, existing metal bases mostly use a single fixing method, lacking the double protection of clamping before fixing. During the testing process, the test fixture and the base are prone to loosening due to factors such as vibration and external force.

[0003] Existing publication number CN222812398U discloses a fixture base and a testing fixture, comprising: a fixture base plate with a carrier plate receiving groove and several upwardly protruding guide posts; a floating carrier plate slidably disposed within the carrier plate receiving groove; several floating springs located below the floating carrier plate for driving the floating carrier plate to slide upward; and several limiting components, each including a bolt washer that restricts the floating carrier plate from continuing to move upward, and a limiting bolt passing through the bolt washer and fixing the bolt washer to the fixture base plate; wherein the bottom surface of the bolt washer is a planar structure, and the fixture base and testing fixture provided by it can effectively solve the problem of difficulty in ensuring that the floating carrier plate is in a horizontal state when sliding upward to its limit position. In the process of realizing this utility model, the inventors discovered the following problems with the prior art:

[0004] Traditional infinite adjustment mechanisms often only allow the metal base to be fixed for test fixtures of a specific size. When faced with fixtures of different sizes, the entire fixture needs to be replaced. In addition, the height of existing metal bases is mostly fixed or manually adjustable, which makes it difficult to adapt to the diverse requirements of fixture height in different testing scenarios.

[0005] Therefore, a metal base for a test fixture is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a metal base for a testing fixture to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a metal base for a test fixture, comprising a clamping mechanism, a lifting assembly, a mounting platform, and a fixing plate. The fixing plate is mounted below the clamping mechanism, and the lifting assembly is mounted below the fixing plate. The mounting platform is mounted below the lifting assembly. The clamping mechanism includes a driving assembly, a sliding assembly, and a positioning assembly. The sliding assembly is mounted above the driving assembly, and the positioning assembly is mounted on the side of the sliding assembly.

[0008] Preferably, the drive assembly includes a motor, a threaded rod, and a threaded sleeve, wherein the threaded rod is mounted on the side of the motor, and the threaded sleeve is mounted on the outer diameter surface of the threaded rod.

[0009] Preferably, the sliding assembly includes a sliding plate, a limiting rod, and a limiting component, wherein the limiting rod is installed on the inner diameter surface of the sliding plate, and the limiting component is installed on the top of the sliding plate.

[0010] Preferably, the limiting component includes a limiting plate, an adjusting spring, and a baffle, wherein the adjusting spring is installed on the side of the limiting plate, and the baffle is installed on the side of the adjusting spring away from the limiting plate.

[0011] Preferably, the positioning component includes a positioning pin, a fixing bolt, and an anti-loosening washer, and the fixing bolt is provided on the side of the positioning pin, and the anti-loosening washer is installed on the outer diameter surface of the fixing bolt.

[0012] Preferably, the lifting assembly includes a cylinder, a lifting rod, and a connecting ring, with the lifting rod mounted above the cylinder and the connecting ring mounted above the lifting rod.

[0013] Preferably, the threaded rod is a bidirectional threaded rod, and the threaded rod and the threaded sleeve are connected by threads, while the output shaft of the motor and the threaded rod are connected by welding.

[0014] Preferably, there are two sets of sliding plates, and the sliding plates and the limiting rod are slidably connected, and the sliding plates have a T-shaped structure.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] Compared with the prior art, the metal base of this test fixture uses a bidirectional threaded rod in the drive assembly to drive two sets of T-shaped sliding plates to move horizontally relative to each other along the limiting rod through the threaded sleeve, thereby changing the distance between the two sets of sliding components to adapt to test fixtures of different widths. The adjusting spring in the limiting assembly has elastic deformation capability. When the baffle is pressed against the side wall of the fixture, the spring can automatically compress according to the thickness of the side wall of the fixture, providing a suitable clamping force for fixtures of different thicknesses.

[0017] Compared with existing technologies, the metal base of this test fixture is driven by a cylinder to extend and retract the lifting rod, which in turn drives the fixing plate and clamping mechanism to rise and fall as a whole via a connecting ring. The height of the fixture can be adjusted according to the testing requirements, which not only adapts to the docking requirements of test equipment of different heights, but also makes it convenient for operators to clamp and observe at a comfortable working height. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a three-dimensional structural diagram of the clamping mechanism of this utility model.

[0020] Figure 3 This is a three-dimensional structural diagram of the lifting component of this utility model.

[0021] Figure 4 This is a three-dimensional structural diagram of the limiting component of this utility model.

[0022] The attached figures are labeled as follows: 1. Clamping mechanism; 2. Lifting assembly; 3. Mounting platform; 4. Fixing plate; 5. Drive assembly; 6. Sliding assembly; 7. Positioning assembly; 8. Motor; 9. Threaded rod; 10. Threaded sleeve; 11. Sliding plate; 12. Limiting rod; 13. Limiting assembly; 14. Limiting plate; 15. Adjusting spring; 16. Baffle; 17. Positioning pin; 18. Fixing bolt; 19. Anti-loosening washer; 20. Cylinder; 21. Lifting rod; 22. Connecting ring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0024] As attached Figures 1 to 4 The metal base for a test fixture shown includes a clamping mechanism 1, a lifting assembly 2, a mounting platform 3, and a fixing plate 4. The fixing plate 4 is mounted below the clamping mechanism 1, the lifting assembly 2 is mounted below the fixing plate 4, and the mounting platform 3 is mounted below the lifting assembly 2. The clamping mechanism 1 includes a driving assembly 5, a sliding assembly 6, and a positioning assembly 7. The sliding assembly 6 is mounted on top of the driving assembly 5, and the positioning assembly 7 is mounted on the side of the sliding assembly 6.

[0025] Among them: When the whole adopts a layered structure design, the clamping mechanism 1 is the core working component. It is connected to the lifting component 2 through the fixed plate 4. The lifting component 2 is then connected to the installation platform 3 to form a stable up and down transmission system. The clamping mechanism 1 integrates the drive component 5, the sliding component 6 and the positioning component 7. The drive component 5 provides power to the clamping mechanism 1, driving the two sets of sliding components 6 to perform horizontal linear motion to clamp the test fixture. The positioning component 7 ensures the connection and fixation between the test fixture and the metal base. Example 2

[0026] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details:

[0027] In a preferred embodiment, the drive assembly 5 includes a motor 8, a threaded rod 9, and a threaded sleeve 10. The threaded rod 9 is mounted on the side of the motor 8, and the threaded sleeve 10 is mounted on the outer diameter surface of the threaded rod 9. The drive assembly 5 uses the motor 8 as a power source. The rotational motion output by the motor 8 is transmitted to the threaded rod 9 through a welded connection. When the threaded rod 9 rotates, it uses the thread transmission principle to drive the threaded sleeve 10 to move axially along the threaded rod 9, converting the rotational motion into linear motion and providing driving force for the clamping mechanism 1.

[0028] In a preferred embodiment, the sliding assembly 6 includes a sliding plate 11, a limiting rod 12, and a limiting component 13. The limiting rod 12 is installed on the inner diameter surface of the sliding plate 11, and the limiting component 13 is installed above the sliding plate 11. In the sliding assembly 6, the sliding plate 11 is sleeved on the limiting rod 12. The limiting rod 12 guides and restricts the movement of the sliding plate 11, so that the sliding plate 11 can only slide along the axial direction of the limiting rod 12. The limiting component 13 is installed above the sliding plate 11 and can clamp and limit the test fixture to be placed on the sliding plate 11.

[0029] In a preferred embodiment, the limiting assembly 13 includes a limiting plate 14, an adjusting spring 15, and a baffle 16. The adjusting spring 15 is installed on the side of the limiting plate 14, and the baffle 16 is installed on the side of the adjusting spring 15 away from the limiting plate 14. The limiting assembly 13 connects the limiting plate 14 and the baffle 16 through the adjusting spring 15. When the two sets of sliding plates 11 drive the baffle 16 on the limiting plate 14 to press against the side wall of the fixture, the baffle 16 will contact the side wall of the fixture and compress the adjusting spring 15, and use the elastic deformation of the adjusting spring 15 to clamp the side wall of the fixture.

[0030] In a preferred embodiment, the positioning assembly 7 includes a positioning pin 17, a fixing bolt 18, and an anti-loosening washer 19. The fixing bolt 18 is provided on the side of the positioning pin 17, and the anti-loosening washer 19 is installed on the outer diameter surface of the fixing bolt 18. In the positioning assembly 7, the positioning pin 17 is inserted into the positioning holes of the test fixture and the limiting plate 14 to achieve precise positioning. The fixing bolt 18 passes through the mounting holes of the limiting plate 14 and the test fixture, and is fixed together with the anti-loosening washer 19. The anti-loosening washer 19 prevents the fixing bolt 18 from loosening by increasing friction.

[0031] In a preferred embodiment, the lifting assembly 2 includes a cylinder 20, a lifting rod 21, and a connecting ring 22. The lifting rod 21 is mounted above the cylinder 20, and the connecting ring 22 is mounted above the lifting rod 21. The lifting assembly 2 uses the cylinder 20 as a power device. When the cylinder 20 is working, it drives the lifting rod 21 to perform telescopic movements. The lifting rod 21 is connected to the upper fixed plate 4 through the connecting ring 22, thereby driving the fixed plate 4 and the clamping mechanism 1 to move up and down as a whole, thereby realizing the adjustment of the height of the test fixture.

[0032] In a preferred embodiment, the threaded rod 9 has a bidirectional thread, and the threaded rod 9 and the threaded sleeve 10 are connected by threads. The output shaft of the motor 8 and the threaded rod 9 are connected by welding.

[0033] In a preferred embodiment, the sliding plate 11 is provided in two sets, the sliding plate 11 and the limiting rod 12 are slidably connected, and the sliding plate 11 has a T-shaped structure.

[0034] The working process of this utility model is as follows: First, the operator places the metal base in the designated position to ensure that the installation platform 3 is stable and fixed. Then, according to the height requirements of the test fixture, the cylinder 20 in the lifting assembly 2 is activated. The cylinder 20 drives the lifting rod 21 to extend and retract. The lifting rod 21 drives the fixing plate 4 and the clamping mechanism 1 above it to adjust to a suitable height through the connecting ring 22.

[0035] Subsequently, the operator places the test fixture on the sliding component 6 of the clamping mechanism 1 and starts the motor 8 in the drive component 5. The output shaft of the motor 8 drives the bidirectional threaded rod 9 to rotate through welding. The threaded rod 9 uses thread transmission to drive the threaded sleeve 10 to drive the two sets of T-shaped sliding plates 11 to move horizontally and linearly along the limiting rod 12. As the sliding plate 11 moves, the limiting component 13 above it gradually approaches the test fixture. The adjusting spring 15 on the side of the limiting plate 14 pushes the baffle 16 to press against the side wall of the fixture. The adjusting spring 15 is compressed to generate elastic force to achieve initial clamping. After that, the operator fixes it through the positioning component 7, inserts the positioning pin 17 into the positioning hole of the test fixture and the limiting plate 14, and then uses the fixing bolt 18 with the anti-loosening washer 19 to pass through the mounting hole of both and tighten it. The anti-loosening washer 19 prevents the bolt from loosening by increasing friction. At this point, the test fixture is fixedly connected to the metal base through the clamping mechanism 1, the positioning component 7 and other components, and subsequent testing can begin. The above is the working principle of the metal base for this type of test fixture.

Claims

1. A metal base for a test fixture, comprising a clamping mechanism (1), a lifting assembly (2), a mounting platform (3), and a fixing plate (4), characterized in that: A fixing plate (4) is installed below the clamping mechanism (1), and a lifting component (2) is installed below the fixing plate (4). An installation platform (3) is installed below the lifting component (2). The clamping mechanism (1) includes a driving component (5), a sliding component (6) and a positioning component (7). The sliding component (6) is installed on the top of the driving component (5), and the positioning component (7) is installed on the side of the sliding component (6).

2. The metal base for a test fixture according to claim 1, characterized in that: The drive assembly (5) includes a motor (8), a threaded rod (9) and a threaded sleeve (10), and the threaded rod (9) is mounted on the side of the motor (8), and the threaded sleeve (10) is mounted on the outer diameter surface of the threaded rod (9).

3. The metal base for a test fixture according to claim 1, characterized in that: The sliding assembly (6) includes a sliding plate (11), a limiting rod (12) and a limiting component (13), and the limiting rod (12) is installed on the inner diameter surface of the sliding plate (11), and the limiting component (13) is installed on the top of the sliding plate (11).

4. The metal base for a test fixture according to claim 3, characterized in that: The limiting component (13) includes a limiting plate (14), an adjusting spring (15) and a baffle (16), and the adjusting spring (15) is installed on the side of the limiting plate (14), and the baffle (16) is installed on the side of the adjusting spring (15) away from the limiting plate (14).

5. The metal base for a test fixture according to claim 1, characterized in that: The positioning component (7) includes a positioning pin (17), a fixing bolt (18) and an anti-loosening washer (19), and the fixing bolt (18) is provided on the side of the positioning pin (17), and the anti-loosening washer (19) is installed on the outer diameter surface of the fixing bolt (18).

6. The metal base for a test fixture according to claim 1, characterized in that: The lifting assembly (2) includes a cylinder (20), a lifting rod (21) and a connecting ring (22), and the lifting rod (21) is installed above the cylinder (20), and the connecting ring (22) is installed above the lifting rod (21).

7. A metal base for a test fixture according to claim 2, characterized in that: The threaded rod (9) is a bidirectional threaded rod, and the threaded rod (9) and the threaded sleeve (10) are connected by threads. The output shaft of the motor (8) and the threaded rod (9) are connected by welding.

8. A metal base for a test fixture according to claim 3, characterized in that: The sliding plate (11) is provided in two sets, and the sliding plate (11) and the limiting rod (12) are slidably connected. The sliding plate (11) has a T-shaped structure.

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