Linkage type test frame fixing clamp

Abstract

The utility model discloses a linkage type testing frame fixing clamp which comprises a testing machine table, a driving mechanism arranged at the bottom of the testing machine table, a reverse transmission mechanism arranged at the output end of the driving mechanism, transmission blocks arranged on the two sides of the reverse transmission mechanism and clamping blocks arranged on the transmission blocks. The transmission block penetrates through the testing machine table and extends to the position above the testing machine table, the clamping blocks are connected with the transmission block above the testing machine table, and the driving mechanism drives the clamping blocks on the two sides to synchronously move in the opposite directions through the reverse transmission mechanism. According to the utility model, the two ends of the reverse transmission mechanism are driven by the driving mechanism to move towards opposite directions respectively, so that the opening and clamping actions of the clamping block are realized. The clamping blocks are synchronously driven to move in opposite directions, so that the centering positioning of the test frame is realized in the process of clamping the test frame, and the centering and clamping requirements of the test frames with different specifications and sizes can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of test rack production and test equipment, in particular to a linkage type test rack fixing fixture. Background Art

[0002] During the production and test process of the test rack, it is necessary to clamp and fix the test rack to prevent displacement during the test, which may cause the installation position of the test rack not to be at the center point of the press bed, resulting in the eccentricity of the cylinder and damaging the cylinder or the press bed guide column. When clamping and fixing the test rack, since the top surface of the test rack needs to be pressed by the upper mold to make the test contacts on the upper mold electrically contact the circuit points on the test rack for electrical testing of the test rack, generally, the test rack is clamped and fixed from both sides. During the clamping process, the movable clamping blocks on both sides are independently driven, so due to the differential problem of the driving mechanism, the test rack may be displaced and cannot be centered. If a single-sided movable clamping block is used and the other side is set as a fixed clamping block, and the test rack is pushed towards the fixed clamping block by the movable clamping block and clamped and fixed. Although this method can meet the clamping and fixing requirements of test racks with different specifications and sizes, it is difficult to center the test rack, which is not convenient for performance testing of the test rack. If the test rack is not installed centered, it is easy to cause uneven force on the cylinder during downward pressure, resulting in friction between the cylinder and the press bed guide column and reducing the service life. Moreover, the installation and disassembly methods of traditional test racks are relatively complex and time-consuming.

[0003] Therefore, the prior art has defects and needs to be improved. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a linkage type test rack fixing fixture.

[0005] The technical solution of the utility model is as follows: A linkage type test rack fixing fixture is provided, including: a test machine table, a driving mechanism arranged at the bottom of the test machine table, a reverse transmission mechanism arranged at the output end of the driving mechanism, transmission blocks arranged on both sides of the reverse transmission mechanism, and clamping blocks arranged on the transmission blocks. The transmission blocks pass through the test machine table and extend above the test machine table. The clamping blocks are connected to the transmission blocks above the test machine table. The driving mechanism drives the clamping blocks on both sides to move synchronously in opposite directions through the reverse transmission mechanism.

[0006] Further, the driving mechanism adopts a servo motor.

[0007] Further, the reverse transmission mechanism adopts a synchronous belt transmission mechanism, which includes: a driving wheel disposed on one side of the testing machine table, a driven wheel disposed on the other side of the testing machine table, and a synchronous belt sleeved on the driving wheel and the driven wheel. The driving wheel is connected to the output end of the driving mechanism, and two sets of the transmission blocks are respectively sleeved on the synchronous belts on both sides of the driving wheel.

[0008] Further, the reverse transmission mechanism adopts a reverse lead screw, which is connected to the output end of the driving mechanism, and the transmission blocks are respectively disposed at both ends of the reverse lead screw.

[0009] Further, a clamping cylinder is disposed on the transmission block, and the output end of the clamping cylinder extends through the testing machine table to the upper part of the testing machine table, and the clamping block is connected to the output end of the clamping cylinder.

[0010] Further, the clamping surface of the clamping block adopts an inverted L-shaped structure, and the opening of the inverted L-shaped structure faces the clamping direction.

[0011] With the above solution, the present utility model drives the two ends of the reverse transmission mechanism to move in opposite directions respectively through the driving mechanism, so as to realize the opening and clamping actions of the clamping block. By synchronously driving the clamping blocks to move in opposite directions, the centering positioning of the test rack can be realized during the clamping process of the test rack, and the centering and clamping requirements of test racks with different specifications and sizes can be met. Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of the present utility model.

[0013] Figure 2 is a schematic bottom structural diagram of the present utility model. Detailed Description of the Invention

[0014] The present utility model will be described in detail below with reference to the drawings and specific embodiments.

[0015] Please refer to Figure 1, the present utility model provides a linkage test rack fixing fixture, comprising: a test machine table 1, a driving mechanism arranged at the bottom of the test machine table 1, a reverse transmission mechanism 2 arranged at the output end of the driving mechanism, transmission blocks 3 arranged on both sides of the reverse transmission mechanism 2, and clamping blocks 4 arranged on the transmission blocks 3. The transmission blocks 3 pass through the test machine table 1 and extend above the test machine table 1. The clamping blocks 4 are connected to the transmission blocks 4 above the test machine table 1. The driving mechanism drives the two clamping blocks 4 to move synchronously in opposite directions through the reverse transmission mechanism 2. By driving the two ends of the reverse transmission mechanism 2 to move in opposite directions respectively through the driving mechanism, the opening and clamping actions of the clamping blocks 4 are realized. By synchronously driving the clamping blocks 4 to move in opposite directions, the centering positioning of the test rack is realized during the clamping process of the test rack, and the centering and clamping requirements of test racks with different specifications and sizes can be met.

[0016] In some embodiments, the driving mechanism adopts a servo motor, which can effectively ensure the precise control of the positive and negative output states and ensure the clamping and fixing effect of the test rack.

[0017] The reverse transmission mechanism 2 adopts a synchronous belt transmission mechanism 21. The synchronous belt transmission mechanism 21 comprises: a driving wheel 211 arranged on one side of the test machine table 1, a driven wheel 212 arranged on the other side of the test machine table 1, and a synchronous belt 213 sleeved on the driving wheel 211 and the driven wheel 212. The driving wheel 211 is connected to the output end of the driving mechanism. The two groups of transmission blocks 3 are respectively sleeved on the synchronous belts 213 on both sides of the driving wheel 211. By driving the driving wheel 211 to rotate through the driving structure, the synchronous belt 213 and the driven wheel 212 are driven to rotate synchronously. Since the movement directions of the synchronous belts 213 on both sides of the driving wheel 211 are opposite during the movement process, the transmission blocks 3 respectively connected to the synchronous belts 213 on both sides can move in opposite directions synchronously, realizing the effect of centering and clamping the test rack.

[0018] The reverse transmission mechanism 2 adopts a reverse lead screw. The reverse lead screw is connected to the output end of the driving mechanism. The transmission blocks 3 are respectively arranged at both ends of the reverse lead screw. The thread directions at both ends of the reverse lead screw are opposite. Therefore, when the driving mechanism drives the reverse lead screw to rotate, the transmission blocks 3 sleeved at both ends of the reverse lead screw move in opposite directions respectively, realizing the effect of centering and clamping the test rack.

[0019] A clamping cylinder 5 is arranged on the transmission block 3. The output end of the clamping cylinder 5 passes through the testing machine table 1 and extends above the testing machine table 1. The clamping block 4 is connected to the output end of the clamping cylinder 5. When clamping the test rack, the piston rod of the clamping cylinder 5 extends in the initial state. After the driving mechanism is started and the clamping block 4 is driven to push the test rack towards the middle direction to achieve the center alignment of the test rack, the clamping cylinder 5 is started, so that the clamping block 4 moves downward, thereby pressing the test rack, and thus clamping and fixing the test rack from the up and down directions.

[0020] The clamping surface of the clamping block 4 adopts an inverted L-shaped structure, and the opening of the inverted L-shaped structure faces the clamping direction. By adopting the inverted L-shaped structure, it is ensured that the test rack can be stably pressed and locked downwards, providing limitations for the test rack in the left-right and up-down directions.

[0021] In summary, in the present utility model, the two ends of the reverse transmission mechanism are driven by the driving mechanism to move in opposite directions respectively, thereby realizing the opening and clamping actions of the clamping block. By synchronously driving the clamping block to move in opposite directions, during the process of clamping the test rack, the center positioning of the test rack is achieved, and the requirements for the center alignment and clamping of test racks with different specifications and sizes can be met.

[0022] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A linkage test stand fixing fixture, characterized in that: include: A test bench, a driving mechanism arranged at the bottom of the test bench, a reverse transmission mechanism arranged on the output end of the driving mechanism, transmission blocks arranged on both sides of the reverse transmission mechanism, and clamping blocks arranged on the transmission blocks, the transmission blocks pass through the test bench and extend to the top of the test bench, the clamping blocks are connected to the transmission blocks above the test bench, and the driving mechanism drives the clamping blocks on both sides to move synchronously in opposite directions through the reverse transmission mechanism.

2. The linkage test stand fixing fixture according to claim 1, characterized in that: The driving mechanism adopts a servo motor.

3. The linkage test stand fixing fixture according to claim 1, characterized in that: The reverse transmission mechanism adopts a synchronous belt transmission mechanism, which includes: a driving wheel arranged on one side of the test machine, a driven wheel arranged on the other side of the test machine, and a synchronous belt sleeved on the driving wheel and the driven wheel. The driving wheel is connected to the output end of the driving mechanism, and the two groups of transmission blocks are respectively sleeved on the synchronous belts on both sides of the driving wheel.

4. The linkage test stand fixing fixture according to claim 1, characterized in that: The reverse transmission mechanism adopts a reverse screw rod, the reverse screw rod is connected to the output end of the driving mechanism, and the transmission blocks are respectively arranged at both ends of the reverse screw rod.

5. The linkage test stand fixing fixture according to claim 1, characterized in that: The transmission block is provided with a clamping cylinder, the output end of the clamping cylinder passes through the test bench and extends to above the test bench, and the clamping block is connected to the output end of the clamping cylinder.

6. The linkage test stand fixing fixture according to claim 1 or 5, characterized in that: The clamping surface of the clamping block adopts an inverted L-shaped structure, and the opening of the inverted L-shaped structure faces the clamping direction.

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