CN217345225U

CN217345225U - Clamping device for IC chip test

Info

Publication number: CN217345225U
Application number: CN202221388643.4U
Authority: CN
Inventors: 王玉伟; 何静; 王一凡; 何贵银
Original assignee: Shenzhen Zhuoran Electronics Co ltd
Current assignee: Shenzhen Zhuoran Electronics Co ltd
Priority date: 2022-06-06
Filing date: 2022-06-06
Publication date: 2022-09-02
Anticipated expiration: 2032-06-06

Abstract

The utility model provides a clamping device for IC chip test belongs to chip testing device technical field to solve the relatively poor problem of current chip test fixture commonality, include: the test device comprises a bottom supporting plate, a main board fixing table, a test main board and a chip fixing device; the main board fixing table is of a square structure with a square groove, and the bottom of the main board fixing table is connected above the bottom supporting plate in a sliding mode; the test mainboard is movably connected on the mainboard fixing table and is a circuit board for testing the IC chip; the lower end of the chip fixing device is fixedly connected to the left side of the upper end face of the bottom supporting plate; the chip fixing device is characterized by comprising: a support vertical arm; the lower end of the supporting vertical arm is fixedly connected to the left end of the upper end face of the bottom supporting plate, and the chip fixing device is fixedly connected to the bottom supporting plate through the supporting vertical arm; the utility model provides high detection device's commonality and promoted chip clamping efficiency.

Description

Clamping device for IC chip test

Technical Field

The utility model belongs to the technical field of the chip testing device, more specifically say, in particular to a clamping device for IC chip test.

Background

An IC chip is a chip formed by placing an integrated circuit formed by a large number of microelectronic devices (transistors, resistors, capacitors, etc.) on a plastic substrate, and after the chip is packaged, the chip needs to be placed on a motherboard to detect the functions of the chip.

Based on the above, when the function of the existing IC chip is detected on the motherboard, the dedicated fixture is generally customized according to the size of the chip, the dedicated fixture is mounted on the motherboard to detect the chip, and when different chips are detected, the new fixture needs to be replaced, more cost and time are needed, the universality of the fixture is poor, and the detection cost is increased.

Therefore, in view of the above, research and improvement are made on the existing structure and defects, and a clamping device for IC chip testing is provided, so as to achieve the purpose of higher practical value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a clamping device for IC chip test to solve the relatively poor problem of current chip test fixture commonality.

The utility model relates to a purpose and efficiency of clamping device for IC chip test is reached by following specific technological means:

a clamping apparatus for IC chip testing, comprising: the device comprises a bottom supporting plate, a main board fixing platform, a test main board and a chip fixing device; the main board fixing table is of a square structure with a square groove, and the bottom of the main board fixing table is connected above the bottom supporting plate in a sliding mode; the test mainboard is movably connected to the mainboard fixing table and is a circuit board for testing the IC chip; the lower end of the chip fixing device is fixedly connected to the left side of the upper end face of the bottom supporting plate; the chip fixing device is characterized by comprising: a support vertical arm; the lower end of the supporting vertical arm is fixedly connected to the left end of the upper end face of the bottom supporting plate, and the chip fixing device is fixedly connected to the bottom supporting plate through the supporting vertical arm.

Further, the bottom support plate includes: the device comprises a cylindrical sliding rod, a rear side sliding block, a transverse screw rod, a front thread block and a sliding beam; two ends of the cylindrical sliding rod are rotatably connected to the supporting block on the rear side of the upper end face of the bottom supporting plate; the rear side sliding block is connected to the cylindrical sliding rod in a sliding manner; two ends of the transverse screw rod are respectively and rotatably connected to the front supporting block on the upper end surface of the bottom supporting plate; the front thread block is in threaded connection with the transverse screw rod; two ends of the sliding beam are respectively and fixedly connected to the inner side end faces of the rear side sliding block and the front thread block; the mainboard fixed station including: a fixed table slider; the fixed station slider is provided with two sets ofly, and two sets of fixed station sliders are fixed connection respectively at the terminal surface middle part under the mainboard fixed station, and two sets of fixed station sliders sliding connection are on the sliding beam, and the mainboard fixed station passes through fixed station slider and bottom sprag board sliding connection.

Further, the bottom support plate further comprises: a longitudinal screw; two ends of the longitudinal screw rod respectively rotate at the left ends of the rear side sliding block and the front thread block; the mainboard fixed station is still including: a fixed platform thread block; the fixed platform thread block is fixedly connected to the left side of the lower end face of the main board fixed platform and is in threaded connection with the longitudinal screw rod.

Further, the mainboard fixing station further comprises: the main board fixing clamp block, the main board movable clamp block and the main board fastening screw rod are arranged on the main board fixing clamp block; the main board fixing clamping block is fixedly connected to the left side of the upper end of the main board fixing platform; the main board movable clamping block is connected to the upper part of the main board fixing table in a sliding manner, and the bottom of the main board movable clamping block is fixedly connected with a threaded block; the two ends of the main board fastening screw rod are respectively and rotatably connected to the left end and the right end of the main board fixing platform, and the main board fastening screw rod is in threaded connection with a threaded hole in the bottom of the main board movable clamping block.

Further, the chip fixing device further comprises: the supporting beam, the middle guide block and the upper supporting block; the left end of the supporting cross beam is fixedly connected with the upper end of the right end face of the supporting vertical arm; the middle guide block is fixedly connected to the middle part of the supporting cross beam, and two groups of round holes are formed in the middle part of the middle guide block; the upper supporting block is fixedly connected above the middle part of the supporting cross beam through a connecting rod, and two groups of round holes are formed in the middle part of the upper supporting block.

Further, the chip fixing device further comprises: the positioning slide rod, the positioning spring, the positioning adjusting handle, the clamping groove connecting block and the chip clamping groove are arranged on the positioning slide rod; the middle part of the positioning slide rod is connected in a circular hole of the middle guide block in a sliding manner, and the upper part of the positioning slide rod is connected in a circular hole of the upper support block in a sliding manner; the upper end of the positioning spring is fixedly connected to the left part of the lower end face of the upper supporting block, and the lower end of the positioning spring is fixedly connected to the middle part of the positioning slide rod; the positioning adjusting handle is rotatably connected to the top of the positioning sliding rod; the clamping groove connecting block is of a square structure with a square hole and is fixedly connected to the bottom of the positioning slide rod; the chip clamping groove is fixedly connected to the clamping groove connecting block through a bolt.

Further, the chip fixing device further comprises: the clamping slide rod, the clamping spring and the clamping adjusting handle are clamped; the middle part of the clamping slide bar is connected in a circular hole of the middle guide block in a sliding manner, the upper part of the clamping slide bar is connected in a circular hole of the upper support block in a sliding manner, and the lower end of the clamping slide bar is provided with an elastic rubber block; the upper end of the clamping spring is fixedly connected to the left part of the lower end face of the upper supporting block, and the lower end of the clamping spring is fixedly connected to the middle part of the clamping slide rod; the clamping adjusting handle is rotatably connected to the top of the clamping sliding rod.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses be provided with the mainboard fixed station, the mainboard fixed station can carry out position control through two sets of screw rod mechanisms, has increased the convenience that chip pin and test mainboard pin were adjusted well, and mainboard fixed station activity design, can the not test mainboard of unidimensional model of centre gripping, has increased the application range of device.

The utility model discloses be provided with the chip draw-in groove, the chip of being convenient for is fixed, and the chip draw-in groove adopts to peg graft fixedly, can be convenient change the chip draw-in groove of not going model, and the messenger can install the test additional to the chip of different models, has increased the practicality of device.

The utility model discloses be provided with chip fixed knot and construct, after the chip draw-in groove was placed to the chip, it just can carry out the chip fixedly through the tight slide bar of lapse, and press from both sides tight slide bar lower extreme and be provided with elastic rubber head, better protection in better fixed chip the chip prevent the chip by the fish tail, detect when the chip and accomplish the back, the tight slide bar of lapse, the chip just can be loosened and then take off the chip, carry out the detection of other chips, and convenient for operation has promoted the clamping efficiency of chip.

The utility model provides high detection device's commonality and promoted chip clamping efficiency.

Drawings

Fig. 1 is a schematic view of the overall front view structure of the present invention.

Fig. 2 is a schematic diagram of the overall left rear view structure of the present invention.

Fig. 3 is a schematic structural view of the bottom support plate of the present invention.

Fig. 4 is a schematic structural diagram of the motherboard fixing platform of the present invention.

Fig. 5 is a schematic structural diagram of the chip fixing device of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a bottom support plate; 101. a cylindrical slide bar; 102. a rear slider; 103. a transverse screw; 104. a front thread block; 105. a sliding beam; 106. a longitudinal screw; 2. a main board fixing table; 201. a fixed table slider; 202. a fixed platform thread block; 203. the main board fixes the clamping block; 204. a movable clamping block of the mainboard; 205. a main board fastening screw; 3. testing the main board; 4. a chip fixing device; 401. a support vertical arm; 402. a support beam; 403. a middle guide block; 404. an upper support block; 405. positioning the slide bar; 406. a positioning spring; 407. positioning an adjusting handle; 408. a clamping groove connecting block; 409. a chip card slot; 410. clamping the sliding rod; 411. a clamping spring; 412. the adjusting handle is clamped.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 5:

the utility model provides a clamping device for IC chip test, include: the device comprises a bottom supporting plate 1, a mainboard fixing table 2, a test mainboard 3 and a chip fixing device 4; the mainboard fixing table 2 is of a square structure with a square groove, and the bottom of the mainboard fixing table 2 is connected above the bottom support plate 1 in a sliding manner; the test mainboard 3 is movably connected on the mainboard fixing table 2, and the test mainboard 3 is a circuit board for testing the IC chip; the lower end of the chip fixing device 4 is fixedly connected to the left side of the upper end face of the bottom supporting plate 1; the chip fixing device 4 is characterized by comprising: a support vertical arm 401; the lower end of the supporting vertical arm 401 is fixedly connected to the left end of the upper end face of the bottom support plate 1, and the chip fixing device 4 is fixedly connected to the bottom support plate 1 through the supporting vertical arm 401.

Wherein, bottom sprag board 1 is including: a cylindrical sliding rod 101, a rear side sliding block 102, a transverse screw 103, a front thread block 104 and a sliding beam 105; two ends of the cylindrical sliding rod 101 are rotatably connected to the supporting block at the rear side of the upper end surface of the bottom supporting plate 1; the rear side slide block 102 is connected on the cylindrical slide rod 101 in a sliding manner; two ends of the transverse screw rod 103 are respectively and rotatably connected to a front supporting block on the upper end surface of the bottom supporting plate 1; the front thread block 104 is in threaded connection with the transverse screw rod 103; two ends of the sliding beam 105 are respectively and fixedly connected to the inner side end faces of the rear side sliding block 102 and the front thread block 104; mainboard fixed station 2 is including: a stationary stage slider 201; the two groups of fixed table sliding blocks 201 are arranged, the two groups of fixed table sliding blocks 201 are respectively and fixedly connected to the middle of the lower end face of the main board fixed table 2, the two groups of fixed table sliding blocks 201 are connected to the sliding cross beam 105 in a sliding mode, and the main board fixed table 2 is connected with the bottom supporting plate 1 in a sliding mode through the fixed table sliding blocks 201; in the using process, when the transverse screw 103 rotates, the front thread block 104 drives the rear side slide block 102 to move back and forth through the sliding beam 105, so as to drive the mainboard fixing table 2 to move left and right, and further adjust the left and right positions of the test mainboard 3 on the mainboard fixing table 2; the main board fixing table 2 can slide back and forth along the slide beam 105.

Wherein, bottom sprag board 1 still including: a longitudinal screw 106; the two ends of the longitudinal screw 106 respectively rotate at the left ends of the rear side sliding block 102 and the front thread block 104; mainboard fixed station 2 is still including: a fixed station thread block 202; the fixed platform thread block 202 is fixedly connected to the left side of the lower end face of the main board fixed platform 2, and the fixed platform thread block 202 is in threaded connection with the longitudinal screw 106; in the using process, when the longitudinal screw 106 is rotated, the longitudinal screw 106 drives the main board fixing table 2 to move back and forth through the fixing table thread block 202, and then the front and back positions of the test main board 3 are adjusted.

Wherein, mainboard fixed station 2 is still including: a main board fixing clamping block 203, a main board movable clamping block 204 and a main board fastening screw 205; the main board fixing clamp block 203 is fixedly connected to the left side of the upper end of the main board fixing platform 2; the main board movable clamping block 204 is connected to the upper part of the main board fixing platform 2 in a sliding manner, and the bottom of the main board movable clamping block 204 is fixedly connected with a thread block; two ends of the main board fastening screw 205 are respectively and rotatably connected to the left end and the right end of the main board fixing platform 2, and the main board fastening screw 205 is in threaded connection with a threaded hole at the bottom of the main board movable clamping block 204; in the using process, after the test mainboard 3 is placed on the mainboard fixing table 2, the mainboard fastening screw 205 is rotated, and the mainboard fastening screw 205 drives the mainboard movable clamping block 204 to move towards the left side, so that the test mainboard 3 is fixed on the mainboard fixing table 2; the mainboard fixing table 2 is movably designed, so that the device can clamp the test mainboard 3 with different models, and the practicability of the device is improved.

Wherein, chip fixing device 4 still includes: a support beam 402, a middle guide block 403 and an upper support block 404; the left end of the supporting beam 402 is fixedly connected with the upper end of the right end face of the supporting vertical arm 401; the middle guide block 403 is fixedly connected to the middle part of the supporting beam 402, and two groups of round holes are formed in the middle part of the middle guide block 403; the upper supporting block 404 is fixedly connected above the middle part of the supporting beam 402 through a connecting rod, and two groups of round holes are formed in the middle part of the upper supporting block 404.

Wherein, chip fixing device 4 is still including: a positioning slide rod 405, a positioning spring 406, a positioning adjusting handle 407, a card slot connecting block 408 and a chip card slot 409; the middle part of the positioning slide rod 405 is connected in a circular hole of the middle guide block 403 in a sliding manner, and the upper part of the positioning slide rod 405 is connected in a circular hole of the upper support block 404 in a sliding manner; the upper end of a positioning spring 406 is fixedly connected to the left part of the lower end face of the upper supporting block 404, and the lower end of the positioning spring 406 is fixedly connected to the middle part of a positioning slide rod 405; the positioning adjusting handle 407 is rotatably connected to the top of the positioning slide bar 405; the clamping groove connecting block 408 is a square structure with a square hole, and the clamping groove connecting block 408 is fixedly connected to the bottom of the positioning slide rod 405; the chip card slot 409 is fixedly connected to the card slot connecting block 408 through a bolt; in the using process, when the position of the test mainboard 3 is adjusted, the positioning slide rod 405 slides upwards to enable the chip clamping groove 409 to rise above the mainboard fixing table 2, the positioning adjusting handle 407 is rotated to clamp the positioning adjusting handle 407 onto a boss at the upper end of the left side of the upper supporting block 404, after the chip testing position on the test mainboard 3 is adjusted to be aligned with the chip clamping groove 409, the positioning adjusting handle 407 is rotated, the chip clamping groove 409 is clamped onto the test mainboard 3 under the action of the positioning spring 406, and a chip to be tested is placed into the clamping groove; when testing chips of different models, the fixing bolt of the chip clamping groove 409 is extracted, a new chip clamping groove 409 is replaced, and then the device can clamp and detect chips of different models, so that the operation is convenient, and the practicability of the device is improved.

Wherein, chip fixing device 4 still includes: a clamping slide bar 410, a clamping spring 411 and a clamping adjustment handle 412; the middle part of the clamping slide bar 410 is connected in a circular hole of the middle guide block 403 in a sliding manner, the upper part of the clamping slide bar 410 is connected in a circular hole of the upper support block 404 in a sliding manner, and the lower end of the clamping slide bar 410 is provided with an elastic rubber block; the upper end of the clamping spring 411 is fixedly connected to the left part of the lower end face of the upper supporting block 404, and the lower end of the clamping spring 411 is fixedly connected to the middle part of the clamping slide bar 410; a clamping adjustment handle 412 is rotatably connected to the top of the clamping slide bar 410; in the using process, when the position of the test mainboard 3 is adjusted, the clamping slide bar 410 slides upwards, the lower end of the clamping slide bar 410 rises above the mainboard fixing table 2, the clamping adjusting handle 412 is rotated to clamp the clamping adjusting handle 412 to the boss at the upper end of the right side of the upper supporting block 404, after the chip clamping groove 409 is clamped on the test mainboard 3, the clamping adjusting handle 412 is rotated, the clamping slide bar 410 moves downwards under the elastic action of the clamping spring 411, the rubber block at the lower end of the clamping slide bar 410 is pressed above the chip, the chip contact is in close contact with the contact of the test mainboard 3, and the chip is tested.

The specific use mode and function of the embodiment are as follows:

after the test mainboard 3 is placed on the mainboard fixing table 2, the mainboard fastening screw 205 is rotated, and the mainboard fastening screw 205 drives the mainboard movable clamping block 204 to move towards the left side, so that the test mainboard 3 is fixed on the mainboard fixing table 2; the mainboard fixing table 2 is movably designed, the device can clamp test mainboards 3 of different models, the practicability of the device is improved, the transverse screw 103 and the longitudinal screw 106 are respectively rotated, the position of the mainboard fixing table 2 is adjusted, after the chip test position on the test mainboard 3 is adjusted to be aligned with the chip clamping groove 409, the positioning adjusting handle 407 is rotated, the chip clamping groove 409 is clamped on the test mainboard 3 under the action of the positioning spring 406, and a chip to be tested is placed in the clamping groove; when chips of different models are tested, the fixing bolt of the chip clamping groove 409 is pulled out, a new chip clamping groove 409 is replaced, and therefore the device can clamp and detect chips of different models, operation is convenient, and practicability of the device is improved; the clamping adjusting handle 412 is rotated, the clamping sliding rod 410 moves downwards under the elastic action of the clamping spring 411, and the rubber block at the lower end of the clamping sliding rod 410 is pressed above the chip, so that the chip contact is tightly contacted with the contact of the test mainboard 3, and the chip is tested; after the chip test is finished, the clamping slide rod 410 is slid upwards, the clamping adjusting handle 412 is clamped on the boss at the upper end of the right side of the upper supporting block 404, the chip is taken down, and the next group of chip test is carried out.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a clamping device for IC chip test which characterized in that: the method comprises the following steps: the device comprises a bottom supporting plate (1), a mainboard fixing table (2), a test mainboard (3) and a chip fixing device (4); the mainboard fixing table (2) is of a square structure with a square groove, and the bottom of the mainboard fixing table (2) is connected above the bottom supporting plate (1) in a sliding manner; the test mainboard (3) is movably connected to the mainboard fixing table (2), and the test mainboard (3) is a circuit board for testing IC chips; the lower end of the chip fixing device (4) is fixedly connected to the left side of the upper end face of the bottom supporting plate (1); the chip fixing device (4) comprises: a supporting vertical arm (401); the lower end of the supporting vertical arm (401) is fixedly connected to the left end of the upper end face of the bottom supporting plate (1), and the chip fixing device (4) is fixedly connected to the bottom supporting plate (1) through the supporting vertical arm (401).

2. The clamping device for testing the IC chip as recited in claim 1, wherein: the bottom support plate (1) comprises: the device comprises a cylindrical sliding rod (101), a rear side sliding block (102), a transverse screw rod (103), a front thread block (104) and a sliding cross beam (105); two ends of the cylindrical sliding rod (101) are rotatably connected to the supporting block on the rear side of the upper end face of the bottom supporting plate (1); the rear side sliding block (102) is connected to the cylindrical sliding rod (101) in a sliding manner; two ends of the transverse screw rod (103) are respectively and rotatably connected to a front supporting block on the upper end surface of the bottom supporting plate (1); the front thread block (104) is in threaded connection with the transverse screw rod (103); two ends of the sliding beam (105) are respectively and fixedly connected to the inner side end faces of the rear side sliding block (102) and the front thread block (104); mainboard fixed station (2) including: a fixed table slider (201); fixed station slider (201) are provided with two sets ofly, and two sets of fixed station sliders (201) fixed connection respectively are terminal surface middle part under mainboard fixed station (2), and two sets of fixed station sliders (201) sliding connection are on sliding beam (105), and mainboard fixed station (2) are through fixed station slider (201) and bottom sprag board (1) sliding connection.

3. The clamping device for testing the IC chip as recited in claim 2, wherein: the bottom support plate (1) further comprises: a longitudinal screw (106); two ends of the longitudinal screw rod (106) respectively rotate at the left ends of the rear side sliding block (102) and the front thread block (104); mainboard fixed station (2) still including: a fixed platform thread block (202); the fixed platform thread block (202) is fixedly connected to the left side of the lower end face of the main plate fixed platform (2), and the fixed platform thread block (202) is in threaded connection with the longitudinal screw (106).

4. The clamping device for testing the IC chip as recited in claim 1, wherein: mainboard fixed station (2) still including: the main board fixing clamp block (203), the main board movable clamp block (204) and the main board fastening screw rod (205); the main board fixing clamping block (203) is fixedly connected to the left side of the upper end of the main board fixing platform (2); the main board movable clamping block (204) is connected to the upper part of the main board fixing table (2) in a sliding manner, and the bottom of the main board movable clamping block (204) is fixedly connected with a threaded block; two ends of the main board fastening screw rod (205) are respectively and rotatably connected to the left end and the right end of the main board fixing platform (2), and the main board fastening screw rod (205) is in threaded connection with a threaded hole in the bottom of the main board movable clamping block (204).

5. The clamping device for testing the IC chip as recited in claim 1, wherein: the chip fixing device (4) further comprises: a support beam (402), a middle guide block (403) and an upper support block (404); the left end of the supporting cross beam (402) is fixedly connected to the upper end of the right end face of the supporting vertical arm (401); the middle guide block (403) is fixedly connected to the middle of the supporting beam (402), and two groups of round holes are formed in the middle of the middle guide block (403); the upper supporting block (404) is fixedly connected above the middle part of the supporting cross beam (402) through a connecting rod, and two groups of round holes are formed in the middle part of the upper supporting block (404).

6. The clamping device for testing the IC chip as recited in claim 5, wherein: the chip fixing device (4) further comprises: the chip clamping device comprises a positioning sliding rod (405), a positioning spring (406), a positioning adjusting handle (407), a clamping groove connecting block (408) and a chip clamping groove (409); the middle part of the positioning slide rod (405) is connected in a circular hole of the middle guide block (403) in a sliding manner, and the upper part of the positioning slide rod (405) is connected in a circular hole of the upper support block (404) in a sliding manner; the upper end of the positioning spring (406) is fixedly connected to the left part of the lower end face of the upper supporting block (404), and the lower end of the positioning spring (406) is fixedly connected to the middle part of the positioning slide rod (405); the positioning adjusting handle (407) is rotatably connected to the top of the positioning sliding rod (405); the clamping groove connecting block (408) is of a square structure with a square hole, and the clamping groove connecting block (408) is fixedly connected to the bottom of the positioning sliding rod (405); the chip clamping groove (409) is fixedly connected to the clamping groove connecting block (408) through a bolt.

7. The clamping device for IC chip testing as recited in claim 5, wherein: the chip fixing device (4) further comprises: a clamping slide rod (410), a clamping spring (411) and a clamping adjusting handle (412); the middle part of the clamping slide rod (410) is connected in a circular hole of the middle guide block (403) in a sliding manner, the upper part of the clamping slide rod (410) is connected in a circular hole of the upper support block (404) in a sliding manner, and the lower end of the clamping slide rod (410) is provided with an elastic rubber block; the upper end of the clamping spring (411) is fixedly connected to the left part of the lower end face of the upper supporting block (404), and the lower end of the clamping spring (411) is fixedly connected to the middle part of the clamping slide rod (410); the clamping adjusting handle (412) is rotatably connected to the top of the clamping sliding rod (410).