Vehicle gauge level chip testing device

Abstract

The invention provides a vehicle gauge level chip testing device, and relates to the field of vehicle gauge level chip testing. The vehicle gauge level chip testing device comprises a clamping part used for clamping a testing unit, and is characterized in that the bottom end of the clamping part is provided with an angle adjusting unit used for adjusting the inclination angle of the clamping part, the bottom end of the clamping part is fixedly provided with a basic vibration part, the basic vibration part is installed on an installation table, the outer ring of the clamping part is connected with a sliding support in a sleeving mode, and the sliding support is installed on the installation table. The sliding support is provided with an auxiliary vibration part which moves along with the sliding support to vibrate the periphery of the tested unit. According to the vehicle gauge level chip testing device, the clamping part capable of adjusting the installation angle and the basic vibration part are arranged, the vibration transmission direction in actual use is simulated by changing the angle, and the position can be changed by arranging the sliding support, so that vibration and basic vibration can be superposed from any position of a tested unit by using the auxiliary vibration part; therefore, a vibration environment in a real environment can be simulated.

Description

Technical Field

[0001] This invention relates to the field of automotive-grade chip testing, specifically to an automotive-grade chip testing device. Background Technology

[0002] Compared to consumer-grade chips, automotive-grade chips have at least the added vibration intensity testing and electromagnetic interference resistance testing. During installation or use, they may be subjected to complex mechanical vibrations, and their solder joints, laminated structures, and component fixation are prone to defects such as cracks and detachment due to vibration stress. Therefore, vibration testing of PCB boards before leaving the factory to simulate mechanical loads under actual working conditions is a key step in evaluating their structural stability and reliability.

[0003] Existing patent CN120404032B discloses a PCB board vibration testing device, including a vibration machine. The vibration machine includes a platform that reciprocates up and down. The platform is equipped with a reversing mechanism for continuously adjusting the arrangement direction of the PCB board during vibration, and a clamping mechanism for quickly repositioning and clamping the PCB board. This invention utilizes the synergistic cooperation of a universal joint structure composed of an outer ring plate and an inner rotating frame in the reversing mechanism, along with an energy storage component and a slow-release component. This allows the PCB board to dynamically adjust its direction during vibration, simulating multi-directional composite vibration in actual working conditions. Compared to traditional single-direction vibration testing, this significantly expands the vibration coverage dimension, more realistically simulating actual usage scenarios and avoiding potential quality issues with the PCB board. This invention uses a linkage component in the clamping mechanism to control the alternating clamping of the first clamping plate and the second clamping plate, thereby enabling quick repositioning and clamping of the PCB board and improving testing efficiency. This technical solution achieves multi-angle vibration testing by changing the angle of the PCB board relative to the vibration direction. However, in actual use, the chip mounting position is fixed and the tilt angle is also fixed. Testing vibration transmission at non-tilt angles is not very meaningful. In particular, during use, the chip not only receives resonance from the mounting but also vibrations from any vibration source transmitted through the air. Therefore, it is necessary to test the effect of superimposed vibration sources on the chip. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an automotive-grade chip testing device, which solves the problem mentioned in the background that existing automotive-grade chip testing methods do not meet practical needs.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: an automotive-grade chip testing device, comprising a clamping part for clamping a test unit, characterized in that: an angle adjustment unit is provided at the bottom end of the clamping part for adjusting the tilt angle of the clamping part, a basic vibration part is fixedly installed at the bottom end of the clamping part, the basic vibration part is installed on a mounting platform, a sliding bracket is sleeved on the outer ring of the clamping part, and the sliding bracket is provided with an auxiliary vibration part that vibrates the surrounding area of ​​the unit under test as the sliding bracket moves.

[0006] Preferably, a base plate is fixedly installed below the mounting platform, a sliding bracket is fixedly installed above the base plate, and vibration isolation pads are provided between the sliding bracket and the base plate, as well as between the mounting platform and the base plate. The basic vibration part and the auxiliary vibration part are installed independently of each other.

[0007] Preferably, the angle adjustment unit includes a ball head support rod disposed below the center of the clamping part for connection with the base vibration part. The base vibration part is equipped with four adjustable telescopic parts. The free end of the adjustable telescopic parts is provided with a ball bearing that contacts the clamping part. The adjustable telescopic parts are arranged in pairs symmetrically along the transverse and longitudinal directions of the ball head support rod.

[0008] Preferably, the clamping part includes a frame, with two sliding seats that move in opposite directions on the upper part of the frame. The frame is provided with a driving unit that drives the two sliding seats to move in opposite directions. A clamping groove for supporting the test unit is provided on the side of the sliding seats that are close to each other. The clamping groove is provided with a fixing unit for fixing the test unit.

[0009] Preferably, the sliding bracket includes a guide rail and a drive shaft parallel to the frame. A connecting frame is rotatably connected to the outer surface of the drive shaft. The guide rail and the connecting frame are fixedly connected. A fixed ring controlled by the drive shaft is slidably connected to the outer surface of the guide rail. The fixed ring is sleeved on the outer ring of the clamping part. The inner ring of the fixed ring is provided with a moving unit that moves along the fixed ring. The fixed ring includes snap-fit ​​grooves on both sides and toothed grooves located in the inner ring. The moving unit includes a housing. A limiting unit snapped into the snap-fit ​​groove is fixedly installed on the housing. A motor is fixedly installed inside the housing. A gear that meshes with the toothed groove is provided at the output end of the motor. The moving unit is fixedly installed with a telescopic part pointing towards the inner ring. An auxiliary vibration part is provided at the free end of the telescopic part. An angle-adjustable fixed frame is installed on the connecting frame.

[0010] Preferably, the cross-sectional shape of the fixing ring is circular.

[0011] Preferably, the cross-sectional shape of the fixing ring is a circular key shape.

[0012] Preferably, a snap-fit ​​protrusion is fixedly installed at one end of the frame that is far apart from each other, and the two sides of the guide rail extend to the two sides of the connecting frame. The guide rail and the snap-fit ​​protrusion are temporarily fixed together by a positioning frame.

[0013] Preferably, the fixed frame includes a multi-axis robotic arm formed by multiple hinge axes connected in sequence, and the multi-axis robotic arm is set in a positioning unit with a fixed posture.

[0014] Preferably, the connecting frame and the frame are fixedly connected by a support frame, and a damping vibration reduction unit is provided in the middle of the support frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. This automotive-grade chip testing device, by setting up a clamping part with an adjustable mounting angle and a basic vibration part, simulates the vibration transmission direction during actual use by changing the angle, and can change the position by setting up a sliding bracket, so that the auxiliary vibration part can vibrate from any position of the unit under test, superimposed with the basic vibration, thereby simulating the vibration environment in the real environment.

[0016] 2. The automotive-grade chip testing device includes an angle adjustment unit comprising a ball-head support rod positioned below the center of the clamping section for connection to the base vibration section. The ball-head support rod comprises a ball head portion and a sleeve portion. The base vibration section is equipped with four adjustable telescopic portions, which can adjust the height of the relative bottom end. These portions can be electromagnetic telescopic sleeves or threaded sleeves. The free end of the adjustable telescopic portion is provided with a ball bearing that contacts the clamping section, so that the clamping section is not restricted by the adjustable telescopic portion when rotating. The adjustable telescopic portions are arranged in pairs symmetrically along the transverse and longitudinal directions of the ball-head support rod, respectively. This arrangement ensures that the clamping section can tilt around the center point.

[0017] 3. In this automotive-grade chip testing device, a snap-fit ​​protrusion is fixedly installed at one end of the frame that is far apart from each other. The two sides of the guide rail extend to the two sides of the connecting frame. The guide rail and the snap-fit ​​protrusion are temporarily fixed together by a positioning frame. By setting the positioning frame to connect the frame and the guide rail, the auxiliary vibration unit can be adjusted together with the frame during the angle adjustment process. After the adjustment is completed, the fixing frame is positioned. This setting can ensure that the auxiliary vibration unit can follow the frame for overall adjustment, avoiding the problem of needing to calibrate when adjusting separately.

[0018] 4. In this automotive-grade chip testing device, the connecting frame and the frame are fixedly connected by a support frame. In this technical solution, the connecting frame and the frame are connected as a whole. This means that the basic vibration unit and the auxiliary vibration unit can be set up as a whole. This reduces the need for a fixed frame for the support part of the auxiliary vibration unit, as well as the vibration reduction requirements for the fixed frame, thereby reducing the production cost of the device.

[0019] 5. This automotive-grade chip testing device has a moving unit on the inner ring of the fixed ring. The fixed ring includes snap-fit ​​grooves on both sides and toothed grooves on the inner ring. The moving unit includes a housing, a limiting unit fixedly installed in the snap-fit ​​groove, and a motor fixedly installed inside the housing. The output end of the motor is provided with a gear that meshes with the toothed groove. The housing is suspended in the snap-fit ​​groove by the limiting unit, and the gear is driven by the motor to move along the distribution of the toothed groove. It can reciprocate in conjunction with the fixed ring itself, thereby aligning the unit under test at any position. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the fixing frame connection of the present invention; Figure 3 This is a schematic diagram of the connection of the circular key-shaped sliding bracket of the present invention; Figure 4 This is a schematic diagram of the connection of the basic vibration unit of the present invention; Figure 5 This is a schematic diagram of the clamping part connection of the present invention; Figure 6 This is a schematic diagram of the connection of the damping vibration reduction unit of the present invention; Figure 7 This is a schematic diagram of the circular fixing ring connection of the present invention; Figure 8 This is a schematic diagram of the connection of the auxiliary vibration part of the present invention.

[0021] In the diagram: 1. Clamping part; 2. Angle adjustment unit; 3. Basic vibration part; 4. Mounting platform; 5. Sliding bracket; 6. Auxiliary vibration part; 7. Base plate; 8. Vibration isolation pad; 201. Ball head support rod; 202. Adjustable telescopic part; 203. Ball bearing; 101. Frame; 102. Sliding seat; 103. Drive unit; 104. Clamping groove; 105. Fixing unit; 501. Guide rail; 502. Drive shaft; 503. Connecting frame; 53. Fixing ring; 54. Moving unit; 531. Snap-fit ​​groove; 532. Tooth groove; 541. Housing; 542. Limiting unit; 543. Motor; 544. Gear; 505. Telescopic part; 56. Fixing frame; 9. Snap-fit ​​protrusion; 10. Positioning frame; 561. Hinge shaft; 562. Positioning unit; 11. Support frame; 12. Damping vibration reduction unit. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0023] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0024] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0026] like Figure 1 - Figure 8 As shown, an automotive-grade chip testing device Example 1: A clamping part 1 is included for clamping a test unit. The clamping part 1 is used to fix the test unit. The clamping part 1 includes a frame 101. Two sliding seats 102 that move in opposite directions are provided on the upper part of the frame 101. The frame 101 is provided with a driving unit 103 for driving the two sliding seats 102 to move in opposite directions. The driving unit 103 includes a motor and a double-threaded column. The sliding seats 102 are driven to move in opposite directions simultaneously by using the double-threaded column with opposite thread directions. Alternatively, two lead shafts can be provided, which are respectively hinged to the sliding seats 102 and slidably connected to the other sliding seat 102, and synchronously drive the two lead shafts to make the sliding seats 102 move in opposite directions. A clamping groove 104 for supporting the test unit is provided on the side of the sliding seats 102 that are close to each other. The clamping groove 104 is provided with a fixing unit 105 for fixing the test unit. The fixing unit 105 can be a screw with a rubber head. The test unit inserted into the clamping groove 104 is fixed by rotating the screw. By setting two mutually movable sliding seats 102, the clamping width can be changed, thereby adapting to test units of different sizes. An angle adjustment unit 2 is provided at the bottom of the clamping part 1 to adjust the tilt angle of the clamping part 1. The angle adjustment unit 2 is used to simulate the actual installation angle of the test unit. The angle adjustment unit 2 includes a ball head support rod 201 located below the center of the clamping part 1 for connection with the base vibration part 3. The ball head support rod 201 includes a ball head portion and a sleeve portion, allowing for omnidirectional rotation. The base vibration part 3 is equipped with four adjustable telescopic parts 202. The adjustable telescopic parts 202 can adjust the height relative to the bottom end; they can be electromagnetic telescopic sleeves or threaded sleeves. The free end of the adjustable telescopic parts 202 is provided with a ball bearing 203 that contacts the clamping part 1, so that the clamping part 1 is not restricted by the adjustable telescopic parts 202 during rotation. The adjustable telescopic parts 202 are arranged symmetrically in pairs along the transverse and longitudinal directions of the ball head support rod 201. The two symmetrical sets of adjustable telescopic parts... The clamping part 1 can be tilted to one side by raising and lowering the other set of adjustable telescopic parts 202. Similarly, the clamping part 1 can be tilted in the other direction by raising and lowering the other set of adjustable telescopic parts 202. Since the adjustable telescopic parts 202 are located on the center line, they will not be squeezed. The angle adjustment unit 2 can be other specific devices, such as a rotary table with a dual-axis gimbal, to achieve arbitrary angle adjustment of the clamping part 1. A basic vibration part 3 is fixedly installed at the bottom of the clamping part 1. The basic vibration part 3 is a device that directly generates vibration acting on the unit under test. The vibration generation scheme can be a vibration motor or other controllable vibration source. The basic vibration part 3 is installed on the mounting platform 4. A sliding bracket 5 is sleeved on the outer ring of the clamping part 1. The sliding bracket 5 includes a guide rail 501 parallel to the frame 101 and a drive shaft 502. A connecting frame 503 is rotatably connected to the outer surface of the drive shaft 502. The guide rail 501 is fixedly connected to the connecting frame 503. The connecting frame 503 serves as the base for supporting the guide rail 501 and the drive shaft 502.A fixed ring 53, controlled by a drive shaft 502, is slidably connected to the outer surface of the guide rail 501, enabling the fixed ring 53 to reciprocate. The fixed ring 53 is sleeved on the outer ring of the clamping part 1. The sliding bracket 5 is provided with an auxiliary vibration part 6 that vibrates the test unit around it as the sliding bracket 5 moves. The inner ring of the fixed ring 53 is provided with a moving unit 54 that moves along the fixed ring 53. The fixed ring 53 includes snap-fit ​​grooves 531 on both sides and toothed grooves 532 on the inner ring. The moving unit 54 includes a housing 541. A limiting unit 542 is fixedly installed in the locking groove 531. A motor 543 is fixedly installed inside the housing 541. The output end of the motor 543 is provided with a gear 544 that meshes with the tooth groove 532. The housing 541 is suspended in the locking groove 531 by the limiting unit 542, and the motor 543 drives the gear 544 to work, so that the whole can move along the distribution of the tooth groove 532. In conjunction with the fixing ring 53 itself, it can reciprocate, thereby aligning with any position of the unit under test. The moving unit 54 is fixedly equipped with a telescopic part 505 pointing inward. By setting the telescopic part 505, the distance between the auxiliary vibration part 6 and the test unit can be adjusted. Since the auxiliary vibration part 6 needs to move frequently and simulates vibration transmitted through a medium, the requirement for the magnitude of vibration generated by the auxiliary vibration part 6 is low, but it needs to meet the change of different vibration frequencies. Therefore, a small vibration source can be set. The auxiliary vibration part 6 is set at the free end of the telescopic part 505. The connecting frame 503 is equipped with an angle-adjustable fixing frame 56. The basic vibration part 3 and the auxiliary vibration part 6 are installed independently of each other and are simulated by the basic vibration part 3.

[0027] The fixed ring 53 has a circular key cross-section, which reduces the distance it moves in the vertical direction, thereby increasing the effective movement ratio. A base plate 7 is fixedly installed below the mounting platform 4, and a sliding bracket 5 is fixedly installed above the base plate 7. Vibration isolation pads 8 are provided between the sliding bracket 5 and the base plate 7, and between the mounting platform 4 and the base plate 7. This arrangement reduces interference between mutual vibrations.

[0028] A snap-fit ​​protrusion 9 is fixedly installed at one of the far ends of the frame 101. The two sides of the guide rail 501 extend to the two sides of the connecting frame 503. The guide rail 501 and the snap-fit ​​protrusion 9 are temporarily fixed together by the positioning frame 10. By setting the positioning frame 10 to connect the frame 101 and the guide rail 501, the frame 101 can drive the auxiliary vibration part 6 to adjust together during the angle adjustment process. After the adjustment is completed, the fixing frame 56 is positioned. This setting can ensure that the auxiliary vibration part 6 can follow the frame 101 to adjust as a whole, avoiding the problem of needing to calibrate when adjusting separately.

[0029] The fixed frame 56 includes a multi-axis robotic arm formed by multiple hinge axes 561 hinged in sequence. It can be a six-axis robotic arm with a trajectory following function. With this setting, it can be adjusted together with the frame 101. After the adjustment is completed, the posture is fixed. The multi-axis robotic arm is set in the positioning unit 562 with the fixed posture. The positioning unit 562 generally uses electromagnetic compression to restrict the corresponding hinge axis 561 from rotating.

[0030] In this embodiment, there are three vibration schemes: one is the vibration of the basic vibration unit 3 alone, another is the vibration of the auxiliary vibration unit 6 alone, and the third is the vibration of the basic vibration unit 3 combined with the vibration of the auxiliary vibration unit 6.

[0031] In Example 2, the cross-sectional shape of the fixing ring 53 is annular, and the shape of the fixing ring 53 is circular. Thus, the limiting unit 542 can be semi-circular, which can increase the lifting capacity.

[0032] The connecting frame 503 and the frame 101 are fixedly connected by the support frame 11. In this technical solution, the connecting frame 503 and the frame 101 are connected as a whole, which means that the basic vibration part 3 and the auxiliary vibration part 6 can be set as a whole. This reduces the need for the support part fixing frame 56 of the auxiliary vibration part 6, as well as the vibration reduction requirements corresponding to the fixing frame 56. The middle of the support frame 11 is provided with a damping vibration reduction unit 12. The support frame 11 includes the fixing parts at both ends and the hydraulic telescopic sleeve in the middle. The hydraulic telescopic sleeve can restrict the fixing parts on both sides to only slide for vibration reduction and not rotate or misalign. By setting the damping vibration reduction unit 12, the influence of mutual vibration can be reduced.

[0033] This technical solution can only achieve vibration of the basic vibration part 3 superimposed with the auxiliary vibration part 6.

[0034] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0035] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automotive-grade chip testing device, comprising a clamping part (1) for clamping a test unit, characterized in that: An angle adjustment unit (2) is provided at the bottom end of the clamping part (1) for adjusting the tilt angle of the clamping part (1). A basic vibration part (3) is fixedly installed at the bottom end of the clamping part (1). The basic vibration part (3) is installed on the mounting platform (4). A sliding bracket (5) is sleeved on the outer ring of the clamping part (1). An auxiliary vibration part (6) is provided on the sliding bracket (5) to vibrate the test unit around it as the sliding bracket (5) moves.

2. The automotive-grade chip testing device according to claim 1, characterized in that: A base plate (7) is fixedly installed below the mounting platform (4), and a sliding bracket (5) is fixedly installed above the base plate (7). Vibration isolation pads (8) are provided between the sliding bracket (5) and the base plate (7) and between the mounting platform (4) and the base plate (7). The foundation vibration part (3) and the auxiliary vibration part (6) are installed independently of each other.

3. The automotive-grade chip testing device according to claim 2, characterized in that: The angle adjustment unit (2) includes a ball head support rod (201) located below the center of the clamping part (1) for connection with the basic vibration part (3). The basic vibration part (3) is equipped with four adjustment telescopic parts (202). The free end of the adjustment telescopic part (202) is provided with a ball (203) that contacts the clamping part (1). The adjustment telescopic parts (202) are arranged in pairs symmetrically along the transverse and longitudinal directions of the ball head support rod (201).

4. The automotive-grade chip testing device according to claim 3, characterized in that: The clamping part (1) includes a frame (101), and two sliding seats (102) that move towards each other are arranged on the upper part of the frame (101). The frame (101) is provided with a driving unit (103) that drives the two sliding seats (102) to move towards each other. A clamping groove (104) for carrying the test unit is provided on the side of the sliding seats (102) that are close to each other. A fixing unit (105) for fixing the test unit is provided in the clamping groove (104).

5. The automotive-grade chip testing device according to any one of claims 1-4, characterized in that: The sliding bracket (5) includes a guide rail (501) parallel to the frame (101) and a drive shaft (502). A connecting frame (503) is rotatably connected to the outer surface of the drive shaft (502). The guide rail (501) is fixedly connected to the connecting frame (503). A fixing ring (53) controlled by the drive shaft (502) is slidably connected to the outer surface of the guide rail (501). The fixing ring (53) is sleeved on the outer ring of the clamping part (1). The inner ring of the fixed ring (53) is provided with a moving unit (54) that moves along the fixed ring (53). The fixed ring (53) includes a snap-fit ​​groove (531) on both sides and a tooth groove (532) located in the inner ring. The moving unit (54) includes a housing (541), a limiting unit (542) fixedly installed in the housing (541) and a motor (543) fixedly installed inside the housing (541), and a gear (544) that meshes with the tooth groove (532) is provided at the output end of the motor (543). The moving unit (54) is fixedly equipped with a telescopic part (505) pointing to the inner circle, and an auxiliary vibration part (6) is set at the free end of the telescopic part (505). The connecting frame (503) is equipped with an angle-adjustable fixed frame (56).

6. The automotive-grade chip testing device according to claim 5, characterized in that: The cross-sectional shape of the fixing ring (53) is circular.

7. The automotive-grade chip testing device according to claim 5, characterized in that: The cross-sectional shape of the fixing ring (53) is a circular key shape.

8. The automotive-grade chip testing device according to claim 6 or 7, characterized in that: The frame (101) has a snap-fit ​​protrusion (9) fixedly installed at one end away from each other. The two sides of the guide rail (501) extend to the two sides of the connecting frame (503). The guide rail (501) and the snap-fit ​​protrusion (9) are temporarily fixed together by the positioning frame (10).

9. The automotive-grade chip testing device according to claim 8, characterized in that: The fixed frame (56) includes a multi-axis robotic arm formed by multiple hinge axes (561) hinged in sequence, and the multi-axis robotic arm is set in a positioning unit (562) with a fixed posture.

10. The automotive-grade chip testing device according to claim 8, characterized in that: The connecting frame (503) and the frame (101) are fixedly connected by a support frame (11), and a damping vibration reduction unit (12) is provided in the middle of the support frame (11).

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