Test head, positioning frame for test head and clamp

Abstract

The utility model discloses a testing head, a positioning frame for the testing head and a clamp. The testing head comprises a testing head body. The rear end of the testing head body is provided with a clamping section, and the rear end of the clamping section is provided with a second limiting piece; positioning channels are formed in the left side and the right side of the testing head body; the positioning frame comprises a positioning connecting plate, a positioning head is arranged at the top end of the positioning connecting plate, and the two ends of the rear end of the positioning head extend backwards to be provided with positioning clamping rods. The output ends of the clamp adjusting assembly and the pneumatic claw cylinder are connected with clamping pieces. In the embodiment, through the cooperation of the testing head, the positioning frame for the testing head and the clamp, the positioning frame can stably position the testing head body, the clamp can conveniently clamp the testing head body from the rear end and transfer the testing head body, and in the transfer process, the clamp can adjust the angle of the testing head body according to the position state of the interface to be tested; and the test head body can be driven to move reasonably, so that damage to the test interface and the test head body due to excessive movement is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment production, in particular to a test head, a positioning frame and a fixture for the test head. Background Art

[0002] In the field of electronic equipment testing, for example, in an automatic plugging and unplugging device for testing the external interfaces of a laptop computer, the laptop computer will be positioned on a test platform first, and then a fixture structure is used to simulate manual clamping of the test head (plug) to perform plugging and unplugging operations on the interface of the laptop computer. However, the existing structure has the following problems: 1. In the zero position state, the test head will be placed on the positioning frame. To facilitate the transfer of the test head by the fixture structure, a large gap is left when the positioning frame positions the test head. In this way, the test head is prone to accidental rotation or tilt when placed, which is instead not conducive to the accurate clamping of the test head by the fixture structure; 2. When the laptop computer is positioned on the test platform, it is not always in an absolutely flat state, and sometimes there will be a little tilt. However, the existing fixture structure does not have the function of correcting the angle of the test head, which is very likely to cause the consequence of plugging and unplugging failure; 3. When performing plugging and unplugging operations, there will be a little error in the distance between each laptop computer and the fixture structure. If the same set moving distance is used to plug and unplug the test head, it is very likely to cause wear of the external interface, and at the same time, the fixture mechanism will also be damaged to a certain extent. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the above problems of the prior art, and provide a test head, a positioning frame and a fixture for the test head, which have the advantages of ingenious structure, stable operation and reliability.

[0004] The purpose of the utility model is mainly realized by the following technical solutions:

[0005] A test head, comprising a test head body;

[0006] The front end of the test head body has an insertion section, and the bottom end of the test head body is provided with a wire running section connected to the insertion section;

[0007] The rear end of the test head body has a clamping section. Both the upper and lower ends of the clamping section have outwardly extending protrusions. The front end of the clamping section has a first limiting piece, and the rear end of the clamping section has a second limiting piece. The outer diameters of the first limiting piece and the second limiting piece are both larger than the outer diameter of the clamping section;

[0008] Positioning channels are concavely provided on both the left and right sides of the test head body, and the positioning channels penetrate through the front and rear end faces of the test head body.

[0009] Further, the test head body has a large-end head section and a small-end head section connected to the bottom end of the large-end head section. The left-right width of the large-end head section is greater than the left-right width of the small-end head section;

[0010] Positioning protrusions are provided at the bottom ends on both the left and right sides of the small-end head section. The top surface of the positioning protrusion, the bottom surface of the large-end head section, and the side surface of the small-end head section together form the positioning channel.

[0011] A positioning holder for a test head, which is used to position the test head as described in any one of the previous items. The positioning holder includes a vertically arranged positioning connection plate, a positioning head is provided at the top end of the positioning connection plate, and at both ends of the rear end of the positioning head, positioning clamping rods are arranged to extend backward and can cooperate with the positioning channel. The distance between the two positioning clamping rods is less than the distance between the two positioning channels.

[0012] Furthermore, connection notches are provided at both the left and right ends of the positioning head;

[0013] A connection protrusion that cooperates with the connection notch is provided at the top end of the positioning connection plate.

[0014] A fixture for a test head, which is used to clamp the test head as described in any one of the previous items. The fixture includes an adjustment assembly and a pneumatic claw cylinder connected to the output end of the adjustment assembly. The pneumatic claw cylinder has two pneumatic claw output ends that can move towards or away from each other;

[0015] Both pneumatic claw output ends are connected with clamping members. The inner side surfaces of the two clamping members are provided with a limiting notch, a clamping section groove, and a limiting section groove with a groove depth greater than that of the clamping section groove that are connected in sequence. The bottom of the clamping section groove is also connected with an extended groove section that can cooperate with the extended protrusion;

[0016] When the two clamping members are in contact with each other, the limiting notches of the two clamping members can jointly abut against the outer surface of the first limiting piece, the clamping section grooves of the two clamping members can jointly clamp the outer surface of the clamping section, and the limiting section grooves of the two clamping members together form a second limiting piece anti-disengagement groove that can cooperate with the second limiting piece.

[0017] Furthermore, the adjustment assembly includes a Z-axis robotic arm and a Y-axis robotic arm connected to the output end of the Z-axis robotic arm. The output end of the Y-axis robotic arm is connected with a support seat, an X-axis robotic arm is installed on the support seat, and the output end of the X-axis robotic arm is connected with a mounting seat;

[0018] A plugging and unplugging driving device and a mounting bracket are provided on the mounting seat. An image collector is provided on the mounting bracket. The output end of the plugging and unplugging driving device is connected with a connecting bracket. An angle adjustment motor is installed on the connecting bracket. The output shaft of the angle adjustment motor is hollowly arranged. The front end of the output shaft is connected with the pneumatic claw cylinder, and the rear end of the output shaft extends out of the angle adjustment motor.

[0019] Furthermore, the rear end of the connecting bracket has a buffer connection section, and a pressure sensor is installed on the buffer connection section;

[0020] It further includes a buffer rod. The front end of the buffer rod sequentially penetrates through the pressure sensor and the buffer connection section, and an anti - detachment head is arranged at the front end of the buffer rod. The rear end of the buffer rod is connected to the output end of the plug - and - unplug drive device. An elastic member is also sleeved on the buffer rod, and the front and rear ends of the elastic member respectively abut against the pressure sensor and the rear end of the buffer rod, such that: the rear end face of the anti - detachment head abuts against the front end face of the buffer connection section.

[0021] Further, a front limit member acting on the front end of the connecting frame and a rear limit member acting on the rear end of the connecting frame are arranged on the mounting seat.

[0022] Further, the X - axis robotic arm includes an X - axis nut seat mounted on the support seat, an X - axis lead screw mounted on the mounting seat, and an X - axis drive device for driving the X - axis lead screw to rotate.

[0023] Further, a support slider is arranged on the support seat, and a support guide rail capable of slidingly cooperating with the support slider is arranged on the mounting seat;

[0024] An installation slider is arranged on the mounting seat, and an installation slide rail capable of cooperating with the installation slider is arranged on the connecting frame.

[0025] The utility model has the following beneficial effects:

[0026] 1. In the test head of the utility model, through the setting of the positioning channel, it can prevent the test head body from accidentally detaching from the positioning frame, and it is also convenient for the fixture to clamp the clamping section and transfer the test head body; through the setting of the extension protrusion, the angle of the test head body can be determined, so as to perform corresponding angle adjustment based on this as a reference in the subsequent process. The first limit piece can be used to limit the extreme position of the fixture clamping the test head body, and the second limit piece can prevent the test head body from detaching from the fixture. In this way, the fixture can clamp the clamping section to realize the high - stability plug - and - unplug operation of the test head body.

[0027] 2. In the positioning frame for the test head of the utility model, through the cooperation of the two positioning clip rods and the two positioning channels, the test head body can be stably positioned, and it is also convenient for the fixture to clamp the test head body from the rear end and transfer it.

[0028] 3. In the fixture for the test head of the present utility model, through the arrangement of the two clamping members, the test head body can be stably clamped, and the reference position for the angle adjustment of the test head body can also be prevented from being damaged; through the arrangement of the image collector and the angle adjustment motor, the angle state of the test head body can be adjusted according to the position state of the interface to be tested, and then the reliable insertion and extraction operations of the test head body can be completed through the joint cooperation of the Z-axis robotic arm, the Y-axis robotic arm, the X-axis robotic arm and the insertion and extraction driving device; through the cooperation of the buffer rod, the elastic member and the pressure sensor, it can be known whether the two clamping members drive the test head body to move reasonably, and the damage to the test interface and the test head body in the over-movement state can also be reduced. Description of the Drawings

[0029] In order to more clearly illustrate the embodiments of the present utility model, the drawings required for describing the embodiments of the present utility model will be briefly described below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those skilled in the art, without creative efforts, other drawings can also be obtained according to the following drawings.

[0030] Figure 1 Structural schematic diagram of a specific embodiment of the test head of the present utility model;

[0031] Figure 2 Structural schematic diagram of a specific embodiment of the test head of the present utility model when positioned;

[0032] Figure 3 and Figure 4 Structural schematic diagram of a specific embodiment of the positioning bracket for the test head of the present utility model;

[0033] Figure 5 and Figure 6 Structural schematic diagram of a specific embodiment of the positioning bracket for the test head of the present utility model when applied;

[0034] Figure 7 and Figure 8 Structural schematic diagram of a specific embodiment of the test head, the positioning bracket for the test head and the fixture of the present utility model;

[0035] Figures 9 to 11 Structural schematic diagram of a specific embodiment of the fixture for the test head of the present utility model;

[0036] Figure 12 and Figure 13 Structural schematic diagram of a specific embodiment of the air claw cylinder and the clamping member of the fixture for the test head of the present utility model;

[0037] Figure 14Schematic diagram of a specific embodiment of a buffer rod and a buffer connection section in the fixture for the test head of the present utility model;

[0038] Figure 15 Cross-sectional view of a specific embodiment of a buffer rod and a buffer connection section in the fixture for the test head of the present utility model.

[0039] Among them, the component names corresponding to the reference numerals are as follows: 1. Test head body, 2. Insertion section, 3. Clamping section, 4. Extension protrusion, 5. Second limiting piece, 6. Wiring section, 7. Positioning channel, 8. Large end head section, 9. Small end head section, 10. Positioning protrusion, 11. Positioning connection plate, 12. Positioning head, 13. Positioning clamping rod, 14. Connection notch, 15. Connection protrusion, 16. Guide groove, 17. Locking relief notch, 18. Pneumatic claw cylinder, 19. Clamping piece, 20. Clamping section groove, 21. Limiting section groove, 22. Y-axis robotic arm, 23. Support seat, 24. Mounting seat, 25. Plug-in driving device, 26. Connection frame, 27. Angle adjustment motor, 28. Pressure sensor, 29. Buffer rod, 30. Elastic member, 31. Buffer connection section, 32. Anti-disengagement head, 33. Front limiting member, 34. Rear limiting member, 35. X-axis nut seat, 36. X-axis lead screw, 37. X-axis driving device, 38. Support slider, 39. Support guide rail, 40. Mounting slider, 41. Mounting slide rail, 42. Image collector, 43. Extended groove section, 44. Z-axis robotic arm, 45. Mounting frame, 46. Test head, 47. First limiting piece, 48. Limiting notch. Specific embodiments

[0040] In order to enable those skilled in the art to better understand the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the following described embodiments are only a part of the embodiments of the present utility model, rather than all. Based on the embodiments described in the present utility model, all other embodiments obtained by those skilled in the art without creative efforts are within the protection scope of the present utility model.

[0041] Embodiment 1

[0042] As Figures 1 to 15 shown, the test head includes a test head body 1;

[0043] The front end of the test head body 1 has an insertion section 2, and a wiring section 6 connected to the insertion section 2 is provided at the bottom end of the test head body 1;

[0044] The rear end of the test head body 1 has a clamping section 3. Both the upper and lower ends of the clamping section 3 have extending protrusions 4 extending outward. The front end of the clamping section 3 has a first limiting piece 47, and the rear end of the clamping section 3 has a second limiting piece 5. The outer diameters of both the first limiting piece 47 and the second limiting piece 5 are larger than the outer diameter of the clamping section 3.

[0045] Concave positioning channels 7 are provided on both the left and right sides of the test head body 1, and the positioning channels 7 penetrate through the front and rear end faces of the test head body 1.

[0046] In this embodiment, the insertion section 2 is used to be inserted into the interface of a laptop, and the wire routing section 6 is used to connect to corresponding test equipment. These two structures are the conventional settings of the test head body 1. The innovation of this embodiment mainly lies in the settings of the clamping section 3 and the positioning channels 7. Specifically, when the positioning frame clamps the test head body 1, the setting of the positioning channels 7 can prevent the test head body 1 from accidentally detaching from the positioning frame, and it is also convenient for the fixture to clamp the clamping section 3 and transfer the test head body 1; when the fixture clamps the clamping section 3, the setting of the extending protrusions 4 can determine the angle of the test head body 1, so as to perform corresponding angle adjustments based on this as a reference subsequently. The first limiting piece 47 can be used to limit the extreme position of the fixture clamping the test head body 1, and the second limiting piece 5 can prevent the test head body 1 from detaching from the fixture. In this way, the fixture can clamp the clamping section 3 to achieve a highly stable plugging and unplugging operation of the test head body 1.

[0047] For the convenience of processing, preferably, the test head body 1 has a large-end head section 8 and a small-end head section 9 connected to the bottom end of the large-end head section 8. The left-right width of the large-end head section 8 is greater than the left-right width of the small-end head section 9.

[0048] Positioning protrusions 10 are provided at the bottom ends of both the left and right sides of the small-end head section 9. The top surface of the positioning protrusions 10, the bottom surface of the large-end head section 8, and the side surfaces of the small-end head section 9 together form the positioning channels 7.

[0049] As Figure 1 shown, the cross-section of the positioning protrusion 10 can be a right-angled triangle with a wider top and a narrower bottom.

[0050] Embodiment 2

[0051] As Figures 1 to 6 shown, a positioning frame for a test head. This positioning frame is used to position the test head as described in any one of Embodiment 1. The positioning frame includes a vertically arranged positioning connecting plate 11. A positioning head 12 is provided at the top end of the positioning connecting plate 11. At both ends of the rear end of the positioning head 12, positioning clamping rods 13 that can cooperate with the positioning channels 7 are extended backward. The distance between the two positioning clamping rods 13 is smaller than the distance between the two positioning channels 7.

[0052] In this embodiment, the distance between the two positioning clamping rods 13 should be less than the distance between the two positioning channels 7 on the test head body 1. In this way, when the test head body 1 is placed between the two positioning clamping rods 13 and the two positioning clamping rods 13 are respectively located in the two side positioning channels 7, the two positioning clamping rods 13 can have sufficient clamping force on the test head body 1. In addition, the setting of the positioning channels 7 can prevent accidental deviation between the positioning clamping rods 13 and the test head body 1 and affect the stability of positioning.

[0053] Preferably, connection notches 14 are provided at both the left and right ends of the positioning head 12;

[0054] A connection protrusion 15 that cooperates with the connection notch 14 is provided at the top end of the positioning connection plate 11.

[0055] In this embodiment, through the snap-fit cooperation between the connection notch 14 and the connection protrusion 15, the quick connection between the positioning head 12 and the positioning connection plate 11 can be realized. In addition, to improve the connection stability between the positioning head 12 and the positioning connection plate 11, the positioning head 12 can also be connected to the positioning connection plate 11 through screws to further lock the connection state between the two.

[0056] To achieve the stable connection between the positioning frame and other structures, preferably, a guiding groove 16 is provided at the front end of the positioning connection plate 11, and a locking relief notch 17 is provided at the rear end of the positioning connection plate 11. The guiding groove 16 can cooperate with other structures to achieve quick concave-convex limit; the locking relief notch 17 can be used for the screw to penetrate and connect it.

[0057] Embodiment 3

[0058] As Figure 1 、 Figures 7 to 15 shown, a fixture for a test head, which is used to clamp the test head described in any one of Embodiment 1. The fixture includes an adjustment assembly and a pneumatic claw cylinder 18 connected to the output end of the adjustment assembly. The pneumatic claw cylinder 18 has two pneumatic claw output ends that can move towards or away from each other;

[0059] Both of the two pneumatic claw output ends are connected with clamping members 19. The inner sides of the two clamping members 19 are provided with a sequentially connected limit notch 48, a clamping section groove 20, and a limit section groove 21 with a groove depth greater than that of the clamping section groove 20. The bottom of the clamping section groove 20 is also connected with an extension groove section 43 that can cooperate with the extension protrusion 4;

[0060] When the two clamping members 19 are abutted against each other, the limit notches 48 of the two clamping members 19 can jointly abut against the outer surface of the first limit piece 47, the clamping section grooves 20 of the two clamping members 19 can jointly clamp the outer surface of the clamping section 3, and the limit section grooves 21 of the two clamping members 19 jointly form a second limit piece anti-detachment groove that can cooperate with the second limit piece 5.

[0061] In the zero position state of this embodiment, the two clamping members 19 should be in an open state under the action of the gripper cylinder 18. Move this fixture until the two clamping members 19 are respectively located on both sides of the clamping section 3, and then gradually tighten the two clamping members 19 through the gripper cylinder 18. When tightened to the limit position, the clamping section grooves 20 of the two clamping members 19 can jointly form a clamping channel that wraps the clamping section 3, and the limiting section grooves 21 of the two clamping members 19 jointly form a second limiting piece anti - detachment groove that can cooperate with the second limiting piece 5. Among them, due to the setting of the extension protrusion 4, an extension groove section 43 that can cooperate with the extension protrusion 4 is provided on the clamping section groove 20. Only when the extension groove section 43 is aligned with the extension protrusion 4 for clamping, can the two clamping members 19 move towards each other to a specific position and stably clamp the clamping section 3. In this way, the reference position for the angle adjustment of the test head body 1 can be prevented from being damaged. Since the groove depth of the limiting section groove 21 is greater than the groove depth of the clamping section groove 20, when the second limiting piece 5 is located in the limiting section groove 21, it can be limited within the limiting section groove 21. In this way, the test head body 1 can be prevented from accidentally detaching from the two clamping members 19.

[0062] Preferably, the adjustment assembly includes a Z - axis robotic arm 44 and a Y - axis robotic arm 22 connected to the output end of the Z - axis robotic arm 44. The output end of the Y - axis robotic arm 22 is connected to a support base 23, and an X - axis robotic arm is installed on the support base 23. The output end of the X - axis robotic arm is connected to a mounting base 24;

[0063] A plug - in driving device 25 and a mounting frame 45 are provided on the mounting base 24. An image collector 42 is provided on the mounting frame 45. The output end of the plug - in driving device 25 is connected to a connecting frame 26, and an angle adjustment motor 27 is installed on the connecting frame 26. The angle adjustment motor 27 has an output shaft with a hollow setting. The front end of the output shaft is connected to the gripper cylinder 18, and the rear end of the output shaft extends out of the angle adjustment motor 27. In this way, the gripper cylinder 18 can be supplied with air through this output shaft, and it can also cooperate with a position sensor to monitor the rotation angle of the angle adjustment motor 27.

[0064] In this embodiment, the direction driven by the X-axis robotic arm is defined as the front-back direction. Then, the X-axis robotic arm is used to adjust the positions of the two clamping members 10 in the front-back direction. It may include an X-axis nut seat 35 mounted on the support base 23, an X-axis lead screw 36 mounted on the mounting base 24, and an X-axis driving device 37 for driving the rotation of the X-axis lead screw 36. The X-axis driving device 37 can be selected as a reduction motor. When the X-axis driving device 37 is started to drive the rotation of the X-axis lead screw 36, and the X-axis nut seat 35 remains stationary, the rotation of the X-axis lead screw 36 can drive the entire mounting base 24 to move horizontally; the Z-axis robotic arm 44 is used to adjust the positions of the two clamping members 19 in the left-right direction, and the Y-axis robotic arm 22 is used to adjust the positions of the two clamping members 19 in the vertical direction. Both the Z-axis robotic arm 44 and the Y-axis robotic arm 22 can be selected as slide table modules, or a combination of a motor, a lead screw, and a nut seat can be selected; the plugging and unplugging driving device 25 is used to provide the displacement required for the two clamping members 19 to complete the plugging and unplugging operations, and it can be selected as a cylinder.

[0065] The Z-axis robotic arm 44, the Y-axis robotic arm 22, and the X-axis robotic arm are all for enabling the two clamping members 19 to clamp the clamping section 3 and move the test head body 1 to the interface of the laptop to be tested, while the plugging and unplugging driving device 25 is mainly used to implement the plugging and unplugging operations between the test head body 1 and the interface to be tested.

[0066] Since in practice, the laptop is not always placed absolutely horizontally on the test bench and there will inevitably be a slight inclination, this embodiment is designed with an image collector 42 and an angle adjustment motor 27. First, the position state of the interface to be tested is captured by the image collector 42, then the angle of the test head body 1 is adjusted by the angle adjustment motor 27 to match the angle state of the interface to be tested, and then the plugging and unplugging operations of the test head body 1 are completed through the joint cooperation of the Z-axis robotic arm 44, the Y-axis robotic arm 22, the X-axis robotic arm, and the plugging and unplugging driving device 25.

[0067] The image collector 42 can be selected as a camera and a fill light.

[0068] Preferably, the rear end of the connecting frame 26 has a buffer connection section 31, and a pressure sensor 28 is mounted on the buffer connection section 31;

[0069] It further includes a buffer rod 29. The front end of the buffer rod 29 sequentially penetrates through the pressure sensor 28 and the buffer connection section 31, and an anti-disengagement head 32 is provided at the front end of the buffer rod 29. The rear end of the buffer rod 29 is connected to the output end of the plugging and unplugging driving device 25. An elastic member 30 is also sleeved on the buffer rod 29, and the front and rear ends of the elastic member 30 respectively abut against the pressure sensor 28 and the rear end of the buffer rod 29, such that: the rear end face of the anti-disengagement head 32 abuts against the front end face of the buffer connection section 31.

[0070] In the practice of plugging and unplugging operations, there will be a slight error in the distance between each laptop to be tested and the fixture. Therefore, in this embodiment, a buffer rod 29 with an elastic member 30 is designed, and the monitoring of the pressure sensor 28 is combined to solve the above problems. Specifically, when the plugging and unplugging driving device 25 acts on the connecting frame 26 and moves excessively, the connecting frame 26 will move backward relative to the buffer rod 29. In this way, the connecting frame 26 will drive the buffer connection section 31 and the dynamic pressure sensor 28 to squeeze the elastic member 30. At this time, the pressure value collected by the pressure sensor 28 will be greater than the set value. In this way, it can be fed back to the control system so that the plugging and unplugging driving device 25 can contract appropriately. On the contrary, when the pressure value collected by the pressure sensor 28 is less than the set value, it means that the displacement of the connecting frame 26 has not reached the set state, and it is fed back to the control system so that the plugging and unplugging driving device 25 can elongate appropriately. In addition, since the connecting frame 26 can slide relative to the buffer rod 29, in this way, the damage to the test interface and the test head body 1 in the excessive movement state can be reduced.

[0071] Preferably, a front limiting member 33 acting on the front end of the connecting frame 26 and a rear limiting member 34 acting on the rear end of the connecting frame 26 are provided on the mounting base 24.

[0072] In this embodiment, when the plugging and unplugging driving device 25 drives the two clamping members 19 to perform plugging and unplugging, that is, to move forward or backward, the front limiting member 33 and the rear limiting member 34 can limit the extreme positions of the displacement amount, avoiding the ineffective loss of electric energy and time caused by excessive movement.

[0073] Preferably, a support slider 38 is provided on the support base 23, and a support guide rail 39 that can be slidably matched with the support slider 38 is provided on the mounting base 24;

[0074] An installation slider 40 is provided on the mounting base 24, and an installation slide rail 41 that can be matched with the installation slider 40 is provided on the connecting frame 26.

[0075] In this embodiment, through the cooperation of the support slider 38 and the support guide rail 39, the stability of the movement of the mounting base 24 can be improved. Through the cooperation of the installation slide rail 41 and the installation slider 40, the stability of the movement of the connecting frame 26 can be improved. In this way, the stability of the cooperation between the two clamping members 19 and the test head body 1 can be improved, and further the stability of the plugging and unplugging operation can be improved.

[0076] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A test head, characterized in that: It comprises a test head body (1); The front end of the test head body (1) is provided with an insertion section (2), and the bottom end of the test head body (1) is provided with a wiring section (6) connected to the insertion section (2); The rear end of the test head body (1) is provided with a clamping section (3), the upper and lower ends of the clamping section (3) are provided with outwardly extending extension protrusions (4), the front end of the clamping section (3) is provided with a first limiting piece (47), and the rear end of the clamping section (3) is provided with a second limiting piece (5), and the outer diameters of the first limiting piece (47) and the second limiting piece (5) are both larger than the outer diameter of the clamping section (3); The left and right sides of the test head body (1) are both provided with inwardly concave positioning channels (7), and the positioning channels (7) penetrate the front and rear end surfaces of the test head body (1).

2. The test head according to claim 1, characterized in that: The test head body (1) comprises a large end head section (8) and a small end head section (9) connected to the bottom end of the large end head section (8), and the left-right width of the large end head section (8) is greater than the left-right width of the small end head section (9); Positioning protrusions (10) are provided at the bottom ends of the left and right sides of the small end head section (9), and the top end surface of the positioning protrusions (10), the bottom end surface of the large end head section (8) and the side surface of the small end head section (9) together form the positioning channel (7).

3. A positioning frame for a test head, characterized in that: The positioning frame is used to position the test head as described in any one of claims 1 to 2, and the positioning frame includes a vertically arranged positioning connecting plate (11), a positioning head (12) is arranged at the top end of the positioning connecting plate (11), and the two end portions of the rear end of the positioning head (12) extend backward to be provided with positioning clamping rods (13) that can cooperate with the positioning channel (7), and the distance between the two positioning clamping rods (13) is smaller than the distance between the two positioning channels (7).

4. The test head positioning frame according to claim 3, characterized in that: The left and right ends of the positioning head (12) are both provided with connection notches (14); The top end of the positioning connection plate (11) is provided with a connection protrusion (15) that matches the connection notch (14).

5. A fixture for a test head, characterized in that: The fixture is used to clamp the test head as described in any one of claims 1 to 2, and the fixture comprises an adjustment component and an air gripper cylinder (18) connected to the output end of the adjustment component, the air gripper cylinder (18) having two air gripper output ends that can move toward or away from each other; the two air gripper output ends are both connected to a clamping member (19), and the inner side surfaces of the two clamping members (19) are provided with a limiting notch (48), a clamping section groove (20), and a limiting section groove (21) whose groove depth is greater than the clamping section groove (20) and greater than the groove depth of the clamping section groove (20), and the bottom of the clamping section groove (20) is also connected to an extension groove section (43) that can cooperate with the extension protrusion (4); When the two clamping members (19) are in contact with each other, the limiting notches (48) of the two clamping members (19) can jointly contact the outer surface of the first limiting plate (47), the clamping section grooves (20) of the two clamping members (19) can jointly clamp the outer surface of the clamping section (3), and the limiting section grooves (21) of the two clamping members (19) jointly form a second limiting plate anti-slip groove that can cooperate with the second limiting plate (5).

6. The test head fixture according to claim 5, characterized in that: The adjustment component comprises a Z-axis mechanical arm (44) and a Y-axis mechanical arm (22) connected to the output end of the Z-axis mechanical arm (44), the output end of the Y-axis mechanical arm (22) is connected to a support seat (23), an X-axis mechanical arm is mounted on the support seat (23), and the output end of the X-axis mechanical arm is connected to a mounting seat (24); The mounting seat (24) is provided with a plug-in drive device (25) and a mounting frame (45), the mounting frame (45) is provided with an image collector (42), the output end of the plug-in drive device (25) is connected to a connecting frame (26), an angle adjustment motor (27) is installed on the connecting frame (26), the angle adjustment motor (27) has a hollow output shaft, the front end of the output shaft is connected to the air claw cylinder (18), and the rear end of the output shaft extends out of the angle adjustment motor (27).

7. The test head fixture according to claim 6, characterized in that: The rear end of the connecting frame (26) is provided with a buffer connecting section (31), on which a pressure sensor (28) is installed; the connecting frame (26) also includes a buffer rod (29), the front end of which passes through the pressure sensor (28) and the buffer connecting section (31) in sequence, and an anti-slip head (32) is arranged at the front end of the buffer rod (29), the rear end of the buffer rod (29) is connected to the output end of the plug-in drive device (25), and an elastic member (30) is also sleeved on the buffer rod (29), and the front and rear ends of the elastic member (30) are respectively abutted against the pressure sensor (28) and the rear end of the buffer rod (29), so that: the rear end surface of the anti-slip head (32) abuts against the front end surface of the buffer connecting section (31).

8. The test head fixture according to claim 7, wherein: The mounting seat (24) is provided with a front stopper (33) capable of acting on the front end of the connecting frame (26) and a rear stopper (34) capable of acting on the rear end of the connecting frame (26).

9. The test head fixture according to claim 6, wherein: The X-axis mechanical arm comprises an X-axis nut seat (35) mounted on the support seat (23), an X-axis lead screw (36) mounted on the mounting seat (24), and an X-axis driving device (37) for driving the X-axis lead screw (36) to rotate.

10. The test head fixture according to claim 6, wherein: The support seat (23) is provided with a support slider (38), and the mounting seat (24) is provided with a support guide rail (39) that can slide with the support slider (38); The mounting seat (24) is provided with a mounting slide block (40), and the connecting frame (26) is provided with a mounting slide rail (41) that can cooperate with the mounting slide block (40).

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