CN218995471U - Test fixture of servo motor circuit - Google Patents

Abstract

A test fixture for a servo motor circuit, comprising: slip table, hold-down mechanism and accredited testing organization, the slip table includes: the holding plate can move between a receiving position and a testing position, and the receiving position and the testing position of the holding plate are mutually separated along the horizontal direction, and the compressing mechanism comprises: the depression bar, the depression bar has the expansion end that can reciprocate, and testing arrangement includes: the test pins can move up and down, and when the bearing plate is positioned at the test position, the movable end of the compression bar and the test pins are positioned right above the bearing plate. The test fixture can fix the rear cover of the servo motor at the test position, and the electric connection between the rear cover and the electrode of the servo motor is realized through the downward movement of the test needle, so that the validity of the electric connection can be ensured, the accuracy of the test is ensured, and meanwhile, workers do not need to carry out wiring operation every time, and the test efficiency is improved.

Description

Test fixture for servo motor circuit

technical field

The utility model relates to a test fixture, in particular to a test fixture for a servo motor circuit.

Background technique

As shown in Figure 1, the circuit 200 of the servo motor is usually embedded in its rear cover 100, the circuit 200 has a plurality of electrodes 201 for electrical connection, the rear cover 100 has an opening 101, and the plurality of electrodes 201 are all facing the opening 101 , when using a servo motor, the controller of the device forms an electrical connection with the motor 201 through wires, thereby controlling the operation of the servo motor. In addition, the edge position of the back cover 100 also has a plurality of through holes 102, and a plurality of screws of the servo motor pass through the through holes 102 and engage with a plurality of screw holes of the casing, thereby completing the connection between the casing of the servo motor and the back cover 100. Install.

Before installing the back cover 100 to the housing, it is necessary to test the circuit 200 of the servo motor. If the test is passed, the installation of the back cover 100 is carried out. If the test fails, the circuit 200 needs to be repaired until the test is passed. The installation of the back cover 100 is being carried out.

At present, most manufacturers directly place the back cover 100 on the test equipment by manual placement, and then electrically connect the electrodes 201 of the circuit 200 through the test signal line of the test equipment, so as to perform the test operation. However, for the above test method, since the back cover 100 is not fixed during the test, the electrical connection of the electrodes 201 is likely to be unstable, resulting in an inaccurate test. In addition, the above method requires manual wiring, which leads to the problem of low test efficiency.

Utility model content

The technical solution of the utility model is aimed at the above situation. In order to solve the above problems, a test fixture for a servo motor circuit is provided. The test fixture includes: a sliding table, a pressing mechanism and a testing mechanism. The sliding table includes: A receiving plate that can move between a receiving position and a testing position, the receiving position and the testing position of the receiving plate are separated from each other along the horizontal direction, the pressing mechanism includes: a pressing rod, the pressing rod has a movable The movable end that moves up and down, the test mechanism includes: several test needles that can move up and down, when the receiving plate is at the testing position, the movable end of the pressing rod and the several test needles are all located on the receiving plate Directly above.

Further, the slide table further includes: a plurality of positioning pins protruding from the upper surface of the receiving plate and arranged in a 360° circular array.

Further, the slide table further includes: a linear conveying cylinder, the piston rod of which is arranged horizontally and fixed with the receiving plate.

Further, the slide table also includes: a slide block, a guide rail and a support plate, the guide rail is parallel to the piston rod of the conveying linear cylinder, the receiving plate is fixed with the slide block, and the slide block is movably arranged on the guide rail , the cylinder body and the guide rail of the conveying linear cylinder are both located on the upper surface of the support plate.

Further, the pressing mechanism also includes: a support block and a pressing linear cylinder, the pressing rod also has a driving end, the upper end of the supporting block forms a rotational connection with the pressing rod and the connection position is located between the driving end of the pressing rod and the movable Between the ends, the piston rod of the compression linear cylinder is arranged in the vertical direction and forms a rotational connection with the driving end of the compression rod, and the lower end of the support block is fixed to the cylinder body of the compression linear cylinder.

Further, the pressing mechanism further includes: a lifting block, the cylinder body of the pressing linear cylinder is located on the upper surface of the lifting block, and the lifting block is located on the upper surface of the support plate.

Further, the test mechanism includes: a lifting block, a test linear cylinder and a support, several test needles protrude from the lower surface of the lifting block, the piston rod of the test linear cylinder is arranged in the vertical direction and fixed with the lifting block, The cylinder body of the test linear cylinder is fixed with a support, and the support is located on the upper surface of the support plate.

Further, the test mechanism also includes: a guide rod, which is fixed with the lifting block and parallel to the piston rod of the test linear cylinder, the bracket has a guide hole, and the guide rod passes through the guide hole and forms a tight fit .

After adopting the above-mentioned technical scheme, the beneficial effect of the utility model is: because the above-mentioned test fixture can fix the back cover of the servo motor at the test position, and realize the electrical connection with the electrodes of the servo motor by moving the test needle downward , so it can ensure the validity of the electrical connection and ensure the accuracy of the test. At the same time, workers do not need to perform wiring operations every time, which improves the test efficiency.

Description of drawings

Fig. 1 is the schematic diagram of the back cover of servo motor;

Fig. 2 is the schematic diagram that the test fixture involved in the utility model is in the no-load state;

Fig. 3 is the schematic diagram that the test fixture that the utility model relates to is in detection state;

Fig. 4 is the schematic diagram of the sliding table involved in the utility model;

Fig. 5 is the schematic diagram of the pressing mechanism involved in the utility model;

Fig. 6 is a schematic diagram of the testing mechanism involved in the present invention.

Detailed ways

Below by embodiment technical scheme of the utility model is further described:

The utility model provides a test fixture for a servo motor circuit. As shown in FIGS. A receiving plate 11 that moves between a test position, the receiving position of the receiving plate 11 and the test position are separated from each other along the horizontal direction, the pressing mechanism 2 includes: a pressing rod 21, the pressing rod 21 has a movable end that can move up and down, The testing mechanism 3 includes: several test pins 31 that can move up and down. When the receiving plate 11 is at the testing position, the movable end of the pressing bar 21 and the several testing pins 31 are all located directly above the receiving plate 11 .

Before using the above-mentioned test fixture, place the test fixture in the test equipment, and connect several test signal lines of the test equipment to the upper ends of several test pins 31 respectively. During use, as shown in Figure 2, first move the receiving plate 11 of the slide table 1 to the receiving position, the worker places the servo motor rear cover 100 equipped with the circuit board 200 on the receiving plate 11, and the electrodes of the circuit board 200 201 is arranged upwards, as shown in Figure 3, and then the receiving plate 11 is moved to the test position, a part of the pressing rod 21 of the pressing mechanism 2 is moved downward, pressing the back cover 100, and finally several tests of the testing mechanism 3 The needle 31 moves downwards to form electrical connection with several electrodes 201 respectively, so as to cooperate with the testing equipment for testing. After the test is completed, a part of the pressing bar 21 and several test pins 31 are moved upwards, and the receiving plate 11 is moved to the receiving position, and the worker is allowed to take out the rear cover 100 to complete the entire testing process.

Wherein, since the above-mentioned test fixture can fix the rear cover of the servo motor at the test position, and realize the electrical connection with the electrodes of the servo motor through the downward movement of the test needle, it can ensure the validity of the electrical connection and ensure the test The accuracy rate is high, and at the same time, workers do not need to perform wiring operations every time, which improves the test efficiency.

Specifically, please continue to refer to FIG. 4 , the slide table 1 further includes: a plurality of positioning pins 12 protruding from the upper surface of the receiving plate 11 and arranged in a 360° circular array. After the rear cover 100 of the servo motor is placed on the receiving plate 11 , a plurality of positioning pins 12 respectively pass through the plurality of through holes 102 of the rear cover 100 to realize pre-fixing of the rear cover 100 .

More specifically, the slide table 1 further includes: a transmission linear cylinder 13 , the piston rod of which is arranged horizontally and fixed to the receiving plate 11 . The receiving plate 11 can be controlled to move between the receiving position and the testing position through the conveying linear cylinder 13 .

More specifically, the slide table 1 also includes: a slide block 14, a guide rail 15 and a support plate 16, the guide rail 15 is parallel to the piston rod of the conveying linear cylinder 13, the receiving plate 11 is fixed with the slide block 14, and the slide block 14 is movably Arranged on the guide rail 15 , the cylinder body of the conveying linear cylinder 13 and the guide rail 15 are both located on the upper surface of the support plate 16 . Through the cooperation of the slider 14 and the guide rail 15, the movement of the receiving plate 11 can be guided to make the movement more stable.

More specifically, please continue to refer to FIG. 5, the pressing mechanism 2 also includes: a support block 22 and a pressing linear cylinder 23, the pressing rod 21 also has a driving end, and the upper end of the supporting block 22 forms a rotational connection with the pressing rod 21 and connects the position Between the driving end and the movable end of the compression rod 21, the piston rod of the compression linear cylinder 23 is arranged in the vertical direction and forms a rotational connection with the driving end of the compression rod 21. The cylinder body is formed fixed. The pressing rod 21 can be driven to rotate around the upper end of the support block 22 by pressing the linear cylinder 23 , so as to move the movable end of the pressing rod 21 up and down, thereby realizing the pressing and releasing functions of the back cover 100 .

More specifically, the pressing mechanism 2 further includes: a lifting block 24 , the cylinder body of the pressing linear cylinder 23 is located on the upper surface of the lifting block 24 , and the lifting block 24 is located on the upper surface of the support plate 16 . By arranging the lifting block 24, the height of the pressing rod 21 can be raised to make up for the height shortage of the pressing linear cylinder 23.

More specifically, testing mechanism 3 comprises: lifting block 32, test linear cylinder 33 and support 34, and several test pins 31 protrude from the lower surface of lifting block 32, and the piston rod of testing linear cylinder 33 is vertically arranged and connected with The lifting block 32 is fixed, and the cylinder body of the test linear cylinder 33 is fixed with the support 34 , and the support 34 is located on the upper surface of the support plate 16 . Several test needles 31 can be controlled to move up and down by the test linear cylinder 33, so as to realize the test of the circuit 200 of the servo motor.

More specifically, test mechanism 3 also includes: guide rod 35, guide rod 35 is fixed with lifting block 32 and is parallel with the piston rod of testing linear cylinder 33, and support 34 has guide hole 340, and guide rod 35 passes guide hole 340 and Form a tight fit. The cooperation between the guide rod 35 and the guide hole 340 can guide the up and down movement of the test needle 31 to make its movement more stable.

Claims (8)

1. A test fixture for a servo motor circuit, characterized in that: the test fixture includes: a slide table, a pressing mechanism and a test mechanism, and the slide table includes: a receiving position that can be placed between a receiving position and a test position Moving receiving plate, the receiving position and testing position of the receiving plate are separated from each other along the horizontal direction, the pressing mechanism includes: a pressing rod, the pressing rod has a movable end that can move up and down, and the testing mechanism includes : several test needles that can move up and down, when the receiving plate is at the test position, the movable end of the pressing bar and the several testing needles are all located directly above the receiving plate. 2. The test fixture of the servo motor circuit according to claim 1, characterized in that: the slide table further comprises: a plurality of positioning pins, the plurality of positioning pins protrude from the upper surface of the receiving plate and form 360° Arranged in a circular array. 3 . The test fixture for the servo motor circuit according to claim 2 , wherein the slide table further comprises: a transmission linear cylinder, the piston rod of the transmission linear cylinder is arranged horizontally and fixed to the receiving plate. 4 . 4. The test fixture of the servo motor circuit according to claim 3, characterized in that: the slide table also includes: a slide block, a guide rail and a support plate, the guide rail is parallel to the piston rod of the transmission linear cylinder, and the The receiving plate is fixed with the slider, and the slider is movably arranged on the guide rail, and the cylinder body and the guide rail of the conveying linear cylinder are both located on the upper surface of the support plate. 5. The test fixture of the servo motor circuit according to claim 4, characterized in that: the pressing mechanism also includes: a supporting block and a pressing linear cylinder, the pressing rod also has a driving end, and the supporting block The upper end of the compression rod forms a rotary connection with the compression rod and the connection position is between the driving end and the movable end of the compression rod. The piston rod of the compression linear cylinder is arranged in the vertical direction and forms a rotation connection with the driving end of the compression rod. The lower end of the support block is fixed with the cylinder block of the compression linear cylinder. 6. The test fixture of the servo motor circuit according to claim 5, characterized in that: the pressing mechanism further comprises: a lifting block, the cylinder body of the pressing linear cylinder is located on the upper surface of the lifting block, the The lifting block is located on the upper surface of the support plate. 7. The test fixture of the servo motor circuit according to claim 4, characterized in that: the test mechanism comprises: a lifting block, a test linear cylinder and a support, and several test pins protrude from the lower surface of the lifting block, so that The piston rod of the test linear cylinder is arranged in the vertical direction and fixed with the lifting block, the cylinder body of the test linear cylinder is fixed with the support, and the support is located on the upper surface of the support plate. 8. The test fixture of the servo motor circuit according to claim 7, characterized in that: the test mechanism also includes: a guide rod, the guide rod is fixed with the lifting block and is parallel to the piston rod of the test linear cylinder, The bracket has guide holes through which the guide rods pass and form a tight fit.

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