Clamping jaw with high fitting property

Abstract

The utility model relates to the field of electrical property detection, in particular to a clamping jaw with high fitting property, which comprises a base, a mounting frame fixedly mounted at the upper end of the base, a motor fixedly mounted at the rear end of the mounting frame, a bearing seat fixedly mounted on the front side of the upper end of the base, a rotating shaft rotatably connected in the bearing seat, and one end of the rotating shaft extending to the front side of the bearing seat. The other end of the rotating shaft extends to the rear side of the bearing seat, the surface of the rotating shaft is fixedly provided with an eccentric wheel II, the left end of the bearing seat is in sliding connection with a linear sliding rail I, and the right end of the bearing seat is in sliding connection with a linear sliding rail II; according to the utility model, the motor drives the rotating shaft to rotate, so that the first eccentric wheel and the second eccentric wheel rotate, and the corresponding cam bearings are matched, so that the first linear slide rail and the second linear slide rail respectively drive the upper test clamping piece and the lower test clamping piece to move in opposite directions, thereby completing the clamping work of the pins of the semiconductor power device. And the pin is in double-point contact with the pin.

Description

TECHNICAL FIELD

[0001] The utility model relates to the electric property detects field especially relates to the high fitting of clamping jaw. BACKGROUND

[0002] Semiconductor power device, also called power electronic device or power semiconductor device, is mainly used for electric energy conversion and control circuit of electric power equipment, involves high-power electronic device, these devices play the role of power conversion, power amplification, power switch, line protection, inversion and rectification in the circuit, in order to ensure the quality of semiconductor power device, usually need to test the electric property of product.

[0003] At present, the semiconductor power device electric property detection device is in the testing work, because the pin docking mechanism of equipment has certain limitation, leading to the pin docking work of semiconductor power device is more sluggish, and the sensitivity of pin docking contact surface is unstable.

[0004] Therefore, aiming at the above-mentioned test equipment pin docking mechanism work, the pin docking work of semiconductor power device is more sluggish, and the sensitivity of pin docking contact surface is unstable, can design a kind of high fitting of clamping jaw. UTILITY MODEL CONTENTS

[0005] In order to overcome the problem that the pin docking mechanism of test equipment works, the pin docking work of semiconductor power device is more sluggish, and the sensitivity of pin docking contact surface is unstable.

[0006] The technical scheme of the utility model is: the high fitting of clamping jaw, including base, the upper end of base is fixedly installed with mounting bracket, the rear end of mounting bracket is fixedly installed with motor, the front side of base upper end is fixedly installed with bearing seat, the inside rotationally connected of bearing seat has rotating shaft, the one end of rotating shaft extends to the front side of bearing seat, and the surface is fixedly installed with eccentric wheel one, the other end of rotating shaft extends to the rear side of bearing seat, and the surface is fixedly installed with eccentric wheel two, the left end of bearing seat is slidably connected with straight line sliding rail one, the right end of bearing seat is slidably connected with straight line sliding rail two, the upper end of straight line sliding rail one is fixedly installed with upper test clamping piece, straight line sliding rail two is fixedly installed with lower test clamping piece, the front end of straight line sliding rail one and the rear end of straight line sliding rail two are all fixedly installed with connecting frame, and the upper side of connecting frame is provided with cam bearing.

[0007] Preferably, the rotating shaft is linked with the motor through the shaft coupling, realizes stable transmission of power, the eccentric directions of the eccentric wheel one and the eccentric wheel two are opposite, the cam bearing can work with the eccentric wheel one and the eccentric wheel two, facilitates the distribution belt to drive the vertical lifting of the linear slide rail one and the linear slide rail two, the reset spring can quickly reset the linear slide rail one and the linear slide rail two during the movement of the linear slide rail one and the linear slide rail two, improves the tightness of the equipment operation, the sensor and the trigger piece can detect the operation state of the linear slide rail one and the linear slide rail two, thereby facilitating the control of the work rhythm of the equipment operation, the upper test clamping piece and the lower test clamping piece vertically move along with the linear slide rail one and the linear slide rail two respectively, realize the clamping of the pins of the semiconductor power device, make the double-point contact with the pins, the test instrument can move synchronously with the upper test clamping piece, facilitates the detection of the product while the equipment clamps the pins.

[0008] Preferably, the output end of the motor extends to the front side of the mounting frame and is provided with a shaft coupling, and the rear end of the rotating shaft is fixedly connected with the shaft coupling.

[0009] Preferably, the upper end of the mounting frame is fixedly provided with a detection equipment shell, and the upper end of the linear slide rail one is fixedly provided with a test instrument on the upper side of the upper test clamping piece.

[0010] Preferably, the lower test clamping piece and the upper test clamping piece are mutually adapted, and the eccentric wheel one and the eccentric wheel two are mutually adapted with the cam bearing.

[0011] Preferably, the lower sides of the left and right ends of the bearing seat are fixedly provided with sensors, and the lower ends of the linear slide rail one and the linear slide rail two are fixedly provided with trigger pieces.

[0012] Preferably, the lower end of the connecting frame is fixedly connected with a reset spring, and the upper end of the base is fixedly provided with connecting pieces on the left and right sides of the bearing seat.

[0013] Preferably, the trigger piece is designed in an L-shaped structure, the trigger piece is mutually adapted with the sensor, the connecting piece is designed in an L-shaped structure, and the connecting piece is fixedly connected with the reset spring.

[0014] The utility model discloses the beneficial effects of:

[0015] The high-adhesion clamping jaw is driven to rotate by a motor, so that eccentric wheel one and eccentric wheel two rotate, cooperating with corresponding cam bearings, so that linear slide rail one and linear slide rail two respectively drive the upper test clamping piece and the lower test clamping piece to move in opposite directions, thereby completing the clamping work on the pins of the semiconductor power device, enabling double-point contact with the pins, which is conducive to the fast clamping of the pin butt joint mechanism of the detection equipment, improves the working efficiency, and realizes double-point contact clamping of the pins, further ensures the sensitivity of the contact surface, improves the accuracy of the detection structure of the equipment, and realizes stable transmission of power by connecting the rotating shaft and the motor through the shaft coupling, which is conducive to reducing the noise generated during the operation of the equipment, and the reset spring is used to quickly reset linear slide rail one and linear slide rail two during the movement process, improve the tightness of the equipment operation, cooperate with the sensor and the trigger piece to detect the running state of linear slide rail one and linear slide rail two, thereby facilitating the control of the work rhythm of the equipment operation, which is conducive to optimizing the driving speed and improving the working efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A high-adhesion clamping jaw is shown in the three-dimensional structure diagram Figure 1 ;

[0017] Figure 2 A high-adhesion clamping jaw is shown in the three-dimensional structure diagram Figure 2 ;

[0018] Figure 3 A shaft coupling is shown in the three-dimensional structure diagram

[0019] Figure 4 A bearing seat is shown in the three-dimensional structure diagram

[0020] Figure 5 A reset spring is shown in the three-dimensional structure diagram.

[0021] The reference signs are as follows: 1, base; 2, mounting frame; 3, motor; 4, bearing seat; 5, rotating shaft; 6, eccentric wheel one; 7, eccentric wheel two; 8, linear slide rail one; 9, linear slide rail two; 10, upper test clamping piece; 11, lower test clamping piece; 12, connecting frame; 13, cam bearing; 14, shaft coupling; 15, detection equipment housing; 16, test instrument; 17, sensor; 18, trigger piece; 19, reset spring; 20, connecting piece. DETAILED DESCRIPTION

[0022] The utility model will be further described below in combination with the drawings and examples.

[0023] Please refer to Figures 1-5The utility model provides a kind of embodiment: the clamping jaw of high adhesion, including base 1, the upper end of base 1 is fixedly installed with mounting bracket 2, the rear end of mounting bracket 2 is fixedly installed with motor 3, the front side of the upper end of base 1 is fixedly installed with bearing seat 4, bearing seat 4 is rotatably connected with rotating shaft 5 in its inside, one end of rotating shaft 5 extends to the front side of bearing seat 4, and surface is fixedly installed with eccentric wheel one 6, the other end of rotating shaft 5 extends to the rear side of bearing seat 4, and surface is fixedly installed with eccentric wheel two 7, the left end of bearing seat 4 is slidably connected with linear slide rail one 8, the right end of bearing seat 4 is slidably connected with linear slide rail two 9, the upper end of linear slide rail one 8 is fixedly installed with upper test clamping piece 10, linear slide rail two 9 is fixedly installed with lower test clamping piece 11, the front end of linear slide rail one 8 and the rear end of linear slide rail two 9 are all fixedly installed with connecting frame 12, and the upper side of connecting frame 12 is provided with cam bearing 13.

[0024] Please refer to Figures 1-4 In the embodiment, the output end of motor 3 extends to the front side of mounting bracket 2 and is provided with shaft coupling 14, the rear end of rotating shaft 5 is fixedly connected with shaft coupling 14, the upper end of mounting bracket 2 is fixedly installed with detection equipment shell 15, the upper end of linear slide rail one 8 is fixedly installed with test instrument 16 on the upper side of upper test clamping piece 10, lower test clamping piece 11 and upper test clamping piece 10 are mutually adapted, eccentric wheel one 6 and eccentric wheel two 7 are mutually adapted with cam bearing 13, rotating shaft 5 is driven to rotate by motor 3, so that rotating shaft 5 drives eccentric wheel one 6 to rotate and moves in the direction away from cam bearing 13, cooperate reset spring 19 drive linear slide rail one 8 and upper test clamping piece 10 to descend, while rotating shaft 5 drives eccentric wheel two 7 to rotate and extrude corresponding cam bearing 13, so that linear slide rail two 9 and lower test clamping piece 11 rise, so that lower test clamping piece 11 and upper test clamping piece 10 complete the clamping of the pin of semiconductor power device, so that it is double-point contact with pin, and test instrument 16 can move synchronously with upper test clamping piece 10, facilitate to detect product while the pin of equipment is clamped, the pin of detection equipment is advantageously clamped quickly by docking mechanism, improve work efficiency, realize double-point contact clamping of pin, further guarantee the sensitivity of contact surface, improve the accuracy of equipment detection structure.

[0025] Please refer to Figure 1 、 Figure 2 And Figure 5The lower side of the left and right ends of the bearing seat 4 is fixedly installed with a sensor 17, the lower end of the linear slide rail one 8 and the linear slide rail two 9 is fixedly installed with a trigger piece 18, the lower end of the connecting frame 12 is fixedly connected with a return spring 19, the upper end of the base 1 is fixedly installed with a connecting piece 20 on the left and right sides of the bearing seat 4, the trigger piece 18 is designed in an L-shaped structure, the trigger piece 18 is matched with the sensor 17, the connecting piece 20 is designed in an L-shaped structure, the connecting piece 20 is fixedly connected with the return spring 19, when the equipment works, the rotating shaft 5 and the motor 3 are connected through the shaft coupling 14, stable power transmission is realized, which is helpful for reducing the noise generated during equipment engineering, the return spring 19 is used to quickly reset the linear slide rail one 8 and the linear slide rail two 9 during the movement, the tightness of the equipment operation is improved, the sensor 17 and the trigger piece 18 are matched to detect the running state of the linear slide rail one 8 and the linear slide rail two 9, so as to conveniently control the work rhythm of the equipment operation, which is helpful for optimizing the driving speed and improving the work efficiency.

[0026] When working, the rotating shaft 5 is driven by the motor 3 to rotate, so that the eccentric wheel one 6 is driven by the rotating shaft 5 to rotate and move away from the cam bearing 13, the linear slide rail one 8 and the upper test clamp piece 10 are lowered by matching the return spring 19, at the same time, the eccentric wheel two 7 is driven by the rotating shaft 5 to rotate and press the corresponding cam bearing 13, so that the linear slide rail two 9 and the lower test clamp piece 11 are raised, so that the lower test clamp piece 11 and the upper test clamp piece 10 complete the clamping of the pins of the semiconductor power device, so that they are in double-point contact with the pins, and the tester 16 can move synchronously with the upper test clamp piece 10, which is convenient for detecting the product while clamping the pins of the equipment, when the equipment works, the rotating shaft 5 and the motor 3 are connected through the shaft coupling 14, stable power transmission is realized, the return spring 19 is used to quickly reset the linear slide rail one 8 and the linear slide rail two 9 during the movement, the tightness of the equipment operation is improved, the sensor 17 and the trigger piece 18 are matched to detect the running state of the linear slide rail one 8 and the linear slide rail two 9, so as to conveniently control the work rhythm of the equipment operation.

[0027] Through the above steps, the motor 3 drives the rotating shaft 5 to rotate, so that the eccentric wheel one 6 and the eccentric wheel two 7 rotate, and the linear slide rail one 8 and the linear slide rail two 9 are matched with the corresponding cam bearing 13, so that the linear slide rail one 8 and the linear slide rail two 9 drive the upper test clamp piece 10 and the lower test clamp piece 11 to move in opposite directions respectively, thereby completing the clamping work of the pins of the semiconductor power device, so as to solve the problem that the pin docking mechanism of the test equipment is relatively dull when working, and the sensitivity of the pin docking contact surface is unstable.

Claims

1. A gripper with high fit, including a base (1), characterized in that: A mounting bracket (2) is fixedly installed on the upper end of the base (1), and a motor (3) is fixedly installed on the rear end of the mounting bracket (2). A bearing seat (4) is fixedly installed on the front side of the upper end of the base (1). A rotating shaft (5) is rotatably connected inside the bearing seat (4). One end of the rotating shaft (5) extends to the front side of the bearing seat (4), and an eccentric wheel (6) is fixedly installed on its surface. The other end of the rotating shaft (5) extends to the rear side of the bearing seat (4), and an eccentric wheel (2) is fixedly installed on its surface. 7) A linear slide rail 1 (8) is slidably connected to the left end of the bearing housing (4), and a linear slide rail 2 (9) is slidably connected to the right end of the bearing housing (4). An upper test clamp (10) is fixedly installed on the upper end of the linear slide rail 1 (8), and a lower test clamp (11) is fixedly installed on the linear slide rail 2 (9). A connecting frame (12) is fixedly installed on the front end of the linear slide rail 1 (8) and the rear end of the linear slide rail 2 (9). A cam bearing (13) is provided on the upper side of the connecting frame (12).

2. The gripper with high fit according to claim 1, characterized in that: The output end of the motor (3) extends to the front side of the mounting bracket (2) and is provided with a coupling (14). The rear end of the rotating shaft (5) is fixedly connected to the coupling (14).

3. The gripper with high fit according to claim 2, characterized in that: The upper end of the mounting bracket (2) is fixedly mounted with the housing of the testing equipment (15), and the upper end of the linear slide rail (8) is fixedly mounted with the testing instrument (16) on the upper side of the upper test clamp (10).

4. The gripper with high fit according to claim 3, characterized in that: The lower test clamp (11) is adapted to the upper test clamp (10), and the eccentric wheel one (6) and eccentric wheel two (7) are adapted to the cam bearing (13).

5. The gripper with high fit according to claim 1, characterized in that: Sensors (17) are fixedly installed on the lower sides of both ends of the bearing housing (4), and trigger plates (18) are fixedly installed on the lower ends of linear slide rail one (8) and linear slide rail two (9).

6. The gripper with high fit according to claim 5, characterized in that: A return spring (19) is fixedly connected to the lower end of the connecting frame (12), and connecting parts (20) are fixedly installed on both the left and right sides of the upper end of the base (1) located on the bearing seat (4).

7. The gripper with high conformability according to claim 6, characterized in that: The trigger piece (18) has an L-shaped structure design and is compatible with the sensor (17). The connector (20) has an L-shaped structure design and is fixedly connected to the reset spring (19).

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