Automatic probe pressing device

Abstract

The present invention discloses an automatic probe pressing device, comprising a workbench, wherein a guide groove is arranged on the workbench, a loading position and an execution position are arranged at both ends of the guide groove, and a feeding mechanism is arranged on the workbench, wherein the feeding mechanism comprises a first driving device and a jig, wherein a plurality of probes are placed on the top of the jig, wherein the first driving device is used to drive the jig to move from the loading position to the execution position along the guide groove, wherein four pressing mechanisms are arranged at intervals of 90 degrees in the horizontal direction of the execution position, wherein the pressing mechanism comprises a second driving device and a pressing assembly, wherein the second driving device is used to drive the pressing assembly to move in the horizontal direction, and when the probe moves from the loading position to the execution position, the second driving device is used to drive the pressing assembly to press at intervals of 90 degrees along the four sides of the probe in the horizontal direction.

Description

Technical Field

[0001] The invention relates to the field of probe pressing, and in particular to an automatic probe pressing device. Background Art

[0002] In the field of chip testing, the probes for chip testing include needles and needle tubes. The fixing methods between the two are usually welding and crimping. Welding has high requirements on materials: welding requires the materials of the needle tube and needle to have good weldability, otherwise the welding quality is difficult to guarantee. Complex process: welding requires professional equipment and technology, the process is relatively complex and the cost is high. It may affect the dimensional accuracy of the probe; the high temperature generated during the welding process may cause the needle tube and needle to deform, affecting the dimensional accuracy of the probe. The crimping fixation is usually a hot pressing process, and the high temperature during the hot pressing process may cause excessive thermal deformation of the materials of the needle tube and needle (such as metal). At the same time, high temperature may also cause changes in the internal structure of the material, such as changes in the metallographic structure, which in turn leads to a decrease in the physical properties of the material (such as hardness, strength, toughness, etc.). This will make the probe more easily worn, bent or broken during use, shortening the service life of the probe. Summary of the invention

[0003] In order to solve the above-mentioned problems, the present invention provides a probe automatic pressing device, including a workbench, a guide groove is arranged on the workbench, a loading position and an execution position are arranged at both ends of the guide groove, and a feeding mechanism is arranged on the workbench, the feeding mechanism includes a first driving device and a jig, a plurality of probes are placed on the top of the jig, the first driving device is used to drive the jig to move along the guide groove from the loading position to the execution position, four pressing mechanisms are arranged at 90 degree intervals in the horizontal direction of the execution position, the pressing mechanism includes a second driving device and a pressing assembly, the second driving device is used to drive the pressing assembly to move in the horizontal direction, when the probe moves from the loading position to the execution position, the second driving device is used to drive the pressing assembly to press at 90 degree intervals along the four sides of the probe in the horizontal direction.

[0004] Furthermore, the jig is in the shape of a long strip, the probes are arranged at intervals in the jig, and the arrangement direction is consistent with the setting direction of the guide groove. A support plate is connected to the bottom of the jig, the jig is mounted on the support plate, and first cylinders are respectively arranged on both sides of the bottom of the support plate, and the driving ends of the first cylinders are respectively connected to the bottom of the support plate.

[0005] Furthermore, the first driving device is fixed to the bottom of the workbench, and includes a first driving motor and a first transmission screw. The first driving motor is used to control the rotation of the first transmission screw. The setting direction of the first transmission screw is consistent with the guide groove. A first sliding seat is installed on the first transmission screw, and a first connecting plate is installed on the first sliding seat. The support plate is installed on the top of the first connecting plate.

[0006] Furthermore, the pressing assembly includes a fixed seat and a die, the fixed seat is connected to the second driving device, a conical portion is provided at one end of the die away from the fixed seat, the probe includes a needle, a needle tube and a connecting portion between the needle and the needle tube, and when the probe moves from the loading position to the execution position, the conical portion is horizontally opposite to the connecting portion.

[0007] Furthermore, the second driving device includes a second driving motor and a horizontally arranged second transmission screw, the second driving motor is used to control the second transmission screw to rotate, a second sliding seat is installed on the first transmission screw, a connecting seat is installed on the second sliding seat, and the fixed seat is arranged on the side wall of the connecting seat.

[0008] Furthermore, a guide plate is disposed in the second sliding seat, and the guide plate is disposed above the second transmission screw and in the same direction as the second transmission screw.

[0009] Furthermore, a balancing component is arranged on the side wall of the second sliding seat, and the balancing component is arranged at one end of the second sliding seat away from the fixed seat. The balancing component includes a first guide rail arranged parallel to the second transmission screw, and a movable seat is installed on the first guide rail. A balancing piece which is attached to the side wall of the second sliding seat is arranged on the movable seat, and the balancing piece is provided with an adjustment groove which is attached to the side wall of the second sliding seat and a knob arranged in the adjustment groove. The knob is rotatably installed on the side wall of the second sliding seat, and the setting direction of the adjustment groove is parallel to the setting direction of the probe on the fixture.

[0010] Furthermore, a positioning mechanism is arranged above the workbench, and the positioning mechanism includes a third driving device and a lifting device installed on the third driving device. A positioning piece is arranged at the bottom of the lifting device, and the setting direction of the positioning piece is the same as the setting direction of the probe.

[0011] Furthermore, the third driving device includes a third driving motor and a third transmission screw, the third driving motor is used to control the third transmission screw to rotate, a third sliding seat is installed on the third transmission screw, a second connecting plate is installed on the third sliding seat, the lifting device is installed on the second connecting plate, the lifting device includes a fourth driving motor and a fourth transmission screw, the fourth driving motor is used to control the fourth transmission screw to rotate, the fourth transmission screw is vertically arranged, a fourth sliding seat is installed on the fourth transmission screw, and the positioning piece is arranged at the bottom of the fourth seat.

[0012] Furthermore, the positioning member includes a hollow insertion portion, and a magnifying glass is provided on the lifting device and the pressing assembly.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present application adopts a horizontal cold pressing method, which applies pressure in the horizontal direction to cause plastic deformation of the metal material of the needle tube and the needle, thereby forming a tight mechanical connection. This connection method can provide a higher connection strength, ensuring that the needle tube and the needle will not easily separate or loosen during the test, thereby ensuring the stability and reliability of the test. At the same time, compared with some other connection methods (such as welding), the crimping process is relatively simple and fast, and easy to realize automated production. The crimping machine can complete a large number of crimping operations in a short time, greatly improving production efficiency, and is suitable for mass-produced parts such as chip test probes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a structural schematic diagram of the feeding mechanism of the present invention;

[0018] Figure 3 is a schematic diagram of the structure of the probe of the present invention;

[0019] Figure 4 It is a structural schematic diagram of the pressing mechanism of the present invention;

[0020] Figure 5 It is a structural schematic diagram of the balancing component of the present invention;

[0021] Figure 6 It is a structural schematic diagram of the positioning mechanism of the present invention;

[0022] Figure 7 It is a schematic structural diagram of the positioning member of the present invention.

[0023] The reference numerals and names in the figures are as follows:

[0024] Workbench 10, guide groove 11, loading position 11a, execution position 11b, feeding mechanism 100, first driving device 110, fixture 120, probe 20, pressing mechanism 200, second driving device 210, pressing assembly 220, support plate 130, first cylinder 140, first driving motor 111, first transmission screw 112, first sliding seat 113, first connecting plate 114, fixed seat 221, die 222, tapered portion 222a, needle 21, needle tube 22, connecting portion 23, second driving motor 211, second transmission screw Rod 212, second sliding seat 213, connecting seat 214, guide plate 215, balancing assembly 230, first guide rail 231, moving seat 232, balancing member 233, adjusting slot 233a, knob 233b, positioning mechanism 300, third driving device 310, lifting device 320, positioning member 330, third driving motor 311, third transmission screw 312, third sliding seat 313, second connecting plate 314, fourth driving motor 321, fourth transmission screw 322, fourth sliding seat 323, insertion portion 331, magnifying glass 400. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] The present invention is described in more detail. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween.

[0027] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, vertical, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself. In the description of the present invention, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning, and therefore cannot be understood as limiting the scope of protection of the present invention. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0028] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0029] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0030] The preferred embodiments of the present invention are further described in conjunction with the accompanying drawings. Figure 1 and Figure 2 As shown, a probe automatic pressing device includes a workbench 10, a guide groove 11 is arranged on the workbench 10, a loading position 11a and an execution position 11b are arranged at both ends of the guide groove 11, a feeding mechanism 100 is arranged on the workbench 10, and the feeding mechanism 100 includes a first driving device 110 and a fixture 120, a plurality of probes 20 are placed on the top of the fixture 120, and the first driving device 110 is used to drive the fixture 120 to move along the guide groove 11 from the loading position 11a to the execution position 11b. The row position 11b has four pressing mechanisms 200 arranged at 90 degree intervals in the horizontal direction of the execution position 11b, and the pressing mechanism 200 includes a second driving device 210 and a pressing assembly 220, and the second driving device 210 is used to drive the pressing assembly 220 to move in the horizontal direction. When the probe 20 moves from the loading position 11a to the execution position 11b, the second driving device 210 is used to drive the pressing assembly 220 to press at 90 degree intervals along the four sides of the probe 20 in the horizontal direction.

[0031] Under the initial loading, the jig 120 is located at the loading position 11a, and then the probe 20 to be pressed is placed on the jig 120, and then the first driving device 110 is started to drive the jig 120 from the loading position 11a to the execution position 11b, and then the second driving device 210 is started to drive the pressing assembly 220 to move in the horizontal direction. Since the pressing mechanism 200 is arranged at 90-degree intervals in the horizontal direction of the execution position 11b, when the dynamic pressing assembly 220 moves in the horizontal direction, the probe 20 can be pressed at 90-degree intervals around it. Compared with the traditional welding method, the pressing of this application adopts a horizontal cold pressing method, and the metal materials of the needle tube 22 and the needle head 21 are plastically deformed by applying pressure, thereby forming a tight mechanical connection. This connection method can provide a higher connection strength, ensuring that the needle tube 22 and the needle head 21 will not be easily separated or loosened during the test, and ensuring the stability and reliability of the test. At the same time, compared with some other connection methods (such as welding), the crimping process is relatively simple and fast, and it is easy to realize automated production. The crimping machine can complete a large number of crimping operations in a short time, greatly improving production efficiency, and is suitable for mass-produced parts such as chip test probes 20.

[0032] On the basis of the above embodiments, Figure 2 As shown, the jig 120 is in the shape of a long strip, and the probes 20 are arranged at intervals at the positions of the jig 120, and the arrangement direction is consistent with the setting direction of the guide groove 11. A support plate 130 is connected to the bottom of the jig 120, and the jig 120 is installed on the support plate 130. First cylinders 140 are respectively arranged on both sides of the bottom of the support plate 130, and the driving ends of the first cylinders 140 are respectively connected to the bottom of the support plate 130. Therefore, when the first cylinder 140 is started, the support plate 130 can be driven to move up and down, thereby driving the jig 120 on the top of the support plate 130 to move up and down. In this way, when probes 20 of different lengths are placed on the top of the jig 120, the height of the jig 120 can be adjusted by the first cylinder 140, so that the probes 20 can be more appropriately aligned with the pressing mechanism 200.

[0033] On the basis of the above embodiments, Figure 2As shown, the first driving device 110 is fixed at the bottom of the workbench 10, and includes a first driving motor 111 and a first transmission screw 112. The first driving motor 111 is used to control the first transmission screw 112 to rotate. The setting direction of the first transmission screw 112 is consistent with the guide groove 11. A first sliding seat 113 is installed on the first transmission screw 112. When the first driving motor 111 controls the first transmission screw 112 to rotate, the first sliding seat 113 can move on the first transmission screw 112. A first connecting plate 114 is installed on the first sliding seat 113. The support plate 130 is installed on the top of the first connecting plate 114. When the jig 120 needs to be moved, the first driving motor 111 is started to drive the first transmission screw 112 to rotate, thereby driving the support plate 130 and the jig 120 to move through the first sliding seat 113 and the first connecting plate 114, and at the same time, the probe 20 can be moved to the execution position 11b one by one for pressing.

[0034] On the basis of the above embodiments, Figure 3 and Figure 4 As shown, the pressing assembly 220 includes a fixed seat 221 and a die 222, the fixed seat 221 is connected to the second driving device 210, and the die 222 is provided with a tapered portion 222a at one end away from the fixed seat 221. The probe 20 includes a needle 21, a needle tube 22 and a connecting portion 23 between the needle 21 and the needle tube 22. When the probe 20 moves from the loading position 11a to the execution position 11b, the tapered portion 222a is horizontally opposite to the connecting portion 23, so that when the second driving device 210 drives the pressing assembly 220 to move in the horizontal direction, the tapered portion 222a can press the connecting portion 23 between the needle 21 and the needle tube 22 in the horizontal direction. Since the four pressing assemblies 220 are arranged at 90 degree intervals, the connecting portion 23 can be pressed 360 degrees during pressing, thereby ensuring the stability of the connection between the probe 20 and the needle tube 22.

[0035] On the basis of the above embodiments, Figure 4As shown, the second driving device 210 includes a second driving motor 211 and a horizontally arranged second transmission screw 212, the second driving motor 211 is used to control the second transmission screw 212 to rotate, a second sliding seat 213 is installed on the second transmission screw 212, a connecting seat 214 is installed on the second sliding seat 213, and the fixed seat 221 is arranged on the side wall of the connecting seat 214. When it is necessary to drive the pressing assembly 220 to move in the horizontal direction, the second driving motor 211 is started to drive the second transmission screw 212 to rotate, thereby driving the fixed seat 221 and the die 222 to move toward the direction of the probe 20 through the second sliding seat 213 and the connecting seat 214. In some embodiments, the first driving motor 111 and the second driving motor 211 are both stepping motors, which can better control the distance that the first sliding seat 113 and the second sliding seat 213 move forward.

[0036] In some embodiments, Figure 4 As shown, a guide plate 215 is arranged in the second sliding seat 213, and the guide plate 215 is arranged above the second transmission screw 212 and in the same direction as the second transmission screw 212. In this way, when the fixed seat 221 and the pressing mold 222 are driven by the second sliding seat 213 and the connecting seat 214 to move toward the direction of the probe 20, the guide plate 215 can better guide the moving direction of the second sliding seat 213, so that the connecting part 23 of the probe 20 can be pressed more accurately.

[0037] On the basis of the above embodiments, Figure 4 and Figure 5As shown, a balancing assembly 230 is arranged on the side wall of the second sliding seat 213, and the balancing assembly 230 is arranged at one end of the second sliding seat 213 away from the fixed seat 221. The balancing assembly 230 includes a first guide rail 231 arranged in parallel with the second transmission screw 212, and a moving seat 232 is installed on the first guide rail 231. The moving seat 232 is provided with a balancing piece 233 attached to the side wall of the second sliding seat 213, and the balancing piece 233 is provided with an adjustment groove 233a attached to the side wall of the second sliding seat 213 and a device The knob 233b is arranged in the adjusting groove 233a, and the knob 233b is rotatably mounted on the side wall of the second sliding seat 213. The setting direction of the adjusting groove 233a is parallel to the setting direction of the probe 20 on the fixture 120. When the knob 233b is loosened, the knob 233b can move in the adjusting groove 233a, thereby adjusting the level of the second sliding seat 213. Because in the art, the pressing assembly 220 presses the probe 20 in the horizontal direction, so in order to ensure that the pressing assembly 220 is in the process of moving There is enough kinetic energy in the second sliding seat 213, and the weight of the fixed seat 221 is usually heavy, which will cause the end of the connecting seat 214 away from the fixed seat 221 to be tilted. In order to balance the tilting, this tilting will cause the die 222 to be unable to press the connecting portion 23 in a horizontal direction (which can be understood as a direction perpendicular to the connecting portion 23), thereby causing the pressing failure. A balancing component 230 is set at the end of the second sliding seat 213 away from the fixed seat 221, and the second sliding seat 213 is tightened by tightening the knob 233b in the adjusting groove 233a. It is fixed on the balancing member 233 to achieve the effect of balancing the tilting. At the same time, when the second sliding seat 213 continues to move, the movable seat 232 can also move on the first guide rail 231. In addition, in this field, due to the different specifications of the probe 20, the weight of the fixed seat 221 will also be different, so that the tilting height of the second sliding seat 213 will also be different. In order to adapt to this change, the height of the tilting of the second sliding seat 213 can be balanced by loosening the knob 233b to move it in the adjustment slot 233a.

[0038] On the basis of the above embodiments, Figure 6As shown, a positioning mechanism 300 is arranged above the workbench 10, and the positioning mechanism 300 includes a third driving device 310 and a lifting device 320 installed on the third driving device 310, and a positioning member 330 is arranged at the bottom of the lifting device 320, and the setting direction of the positioning member 330 is the same as the setting direction of the probe 20. When the probe 20 moves from the loading position 11a to the execution position 11b, the third driving device 310 is used to drive the lifting device 320 to move to the top of the probe 20, and then the lifting device 320 is used to control the positioning member 330 to descend from the positioning of the probe 20 to position the probe 20 on the fixture 120, so as to prevent the probe 20 from swinging around when pressing.

[0039] In some embodiments, Figure 6 As shown, the third driving device 310 includes a third driving motor 311 and a third transmission screw 312. The third driving motor 311 is used to control the third transmission screw 312 to rotate. A third sliding seat 313 is installed on the third transmission screw 312. When the third driving motor 311 controls the third transmission screw 312 to rotate, the third sliding seat 313 can move on the third transmission screw 312. A second connecting plate 314 is installed on the third sliding seat 313. The lifting device 320 is installed on the second connecting plate 314. In some embodiments, the lifting device 320 includes a fourth drive motor 321 and a fourth transmission screw 322. The fourth drive motor 321 is used to control the fourth transmission screw 322 to rotate. The fourth transmission screw 322 is vertically arranged, and a fourth sliding seat 323 is installed on the fourth transmission screw 322. When the fourth drive motor 321 controls the fourth transmission screw 322 to rotate, the fourth sliding seat 323 can be lifted and moved on the fourth transmission screw 322, and the positioning member 330 is arranged at the bottom of the fourth sliding seat 323.

[0040] In some embodiments, Figure 7 As shown, the positioning member 330 includes a hollow insertion portion 331, and the insertion portion 331 is used to insert the needle 21 of the probe 20 so that the needle 21 is fastened in the insertion portion 331, thereby preventing the probe 20 from swinging to the surroundings during pressing.

[0041] In some embodiments, in combination Figure 1 and Figure 6 As shown, both the lifting device 320 and the pressing assembly 220 are provided with a magnifying glass 400, and the magnifying glass 400 is used to magnify and observe the positioning and pressing process to prevent problems from occurring during the positioning and pressing process.

[0042] The details of the exemplary embodiments described above are not limited to the embodiments described above, and the invention may be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive in all respects, and the scope of the invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the invention.

Claims

1. A probe automatic pressing device, characterized in that: The invention comprises a workbench (10), wherein a guide groove (11) is arranged on the workbench (10), and a loading position (11a) and an execution position (11b) are arranged at both ends of the guide groove (11), and a feeding mechanism (100) is arranged on the workbench (10), wherein the feeding mechanism (100) comprises a first driving device (110) and a jig (120), and a plurality of probes (20) are placed on the top of the jig (120), and the first driving device (110) is used to drive the jig (120) to move along the guide groove (11) from the loading position (11a) to the execution position (11b), and the jig (120) is moved in a horizontal direction at a speed of 90° to the execution position (11b). Four pressing mechanisms (200) are arranged at intervals of 90 degrees, the pressing mechanism (200) comprising a second driving device (210) and a pressing assembly (220), the second driving device (210) being used to drive the pressing assembly (220) to move in a horizontal direction, and when the probe (20) moves from the loading position (11a) to the execution position (11b), the second driving device (210) is used to drive the pressing assembly (220) to press at intervals of 90 degrees along the periphery of the probe (20) in the horizontal direction, the jig (120) being in the shape of a long strip, the probes (20) being arranged at intervals at the positions of the jig (120), and the arrangement direction being aligned with the guide groove (11 ), a support plate (130) is connected to the bottom of the jig (120), the jig (120) is mounted on the support plate (130), first cylinders (140) are respectively arranged on both sides of the bottom of the support plate (130), the driving ends of the first cylinders (140) are respectively connected to the bottom of the support plate (130), the pressing assembly (220) comprises a fixing seat (221) and a pressing die (222), the fixing seat (221) is connected to the second driving device (210), a conical portion (222a) is arranged at one end of the pressing die (222) away from the fixing seat (221), and the probe (20) comprises a needle ( 21), a needle tube (22), and a connecting portion (23) between the needle head (21) and the needle tube (22); when the probe (20) moves from the loading position (11a) to the execution position (11b), the conical portion (222a) is directly opposite to the connecting portion (23) in the horizontal direction; a positioning mechanism (300) is arranged above the workbench (10); the positioning mechanism (300) comprises a third driving device (310) and a lifting device (320) installed on the third driving device (310); a positioning member (330) is arranged at the bottom of the lifting device (320); and the setting direction of the positioning member (330) is the same as the setting direction of the probe (20).

2. The automatic probe pressing device according to claim 1, characterized in that: The first driving device (110) is fixed to the bottom of the workbench (10), and comprises a first driving motor (111) and a first transmission screw (112); the first driving motor (111) is used to control the first transmission screw (112) to rotate; the setting direction of the first transmission screw (112) is consistent with the guide groove (11); a first sliding seat (113) is installed on the first transmission screw (112); a first connecting plate (114) is installed on the first sliding seat (113); and the support plate (130) is installed on the top of the first connecting plate (114).

3. The automatic probe pressing device according to claim 1, characterized in that: The second driving device (210) comprises a second driving motor (211) and a second transmission screw (212) arranged horizontally, the second driving motor (211) being used to control the second transmission screw (212) to rotate, a second sliding seat (213) being mounted on the second transmission screw (212), a connecting seat (214) being mounted on the second sliding seat (213), and the fixing seat (221) being arranged on a side wall of the connecting seat (214).

4. The automatic probe pressing device according to claim 3, characterized in that: A guide plate (215) is arranged inside the second sliding seat (213); the guide plate (215) is arranged above the second transmission screw rod (212) and in the same direction as the second transmission screw rod (212).

5. The automatic probe pressing device according to claim 4, characterized in that: A balancing component (230) is arranged on the side wall of the second sliding seat (213). The balancing component (230) is arranged at one end of the second sliding seat (213) away from the fixed seat (221). The balancing component (230) comprises a first guide rail (231) arranged parallel to the second transmission screw rod (212). A moving seat (232) is mounted on the first guide rail (231). A balancing member (233) affixed to the side wall of the second sliding seat (213) is arranged on the moving seat (232). The balancing member (233) is provided with an adjustment groove (233a) affixed to the side wall of the second sliding seat (213) and a knob (233b) arranged in the adjustment groove (233a). The knob (233b) is rotatably mounted on the side wall of the second sliding seat (213). The setting direction of the adjustment groove (233a) is parallel to the setting direction of the probe (20) on the fixture (120).

6. The automatic probe pressing device according to claim 1, characterized in that: The third driving device (310) comprises a third driving motor (311) and a third transmission screw (312), the third driving motor (311) being used to control the third transmission screw (312) to rotate, a third sliding seat (313) being mounted on the third transmission screw (312), a second connecting plate (314) being mounted on the third sliding seat (313), the lifting device (320) being mounted on the second connecting plate (314), the lifting device (320) comprising a fourth driving motor (321) and a fourth transmission screw (322), the fourth driving motor (321) being used to control the fourth transmission screw (322) to rotate, the fourth transmission screw (322) being arranged vertically, a fourth sliding seat (323) being mounted on the fourth transmission screw (322), and the positioning member (330) being arranged at the bottom of the fourth sliding seat (323).

7. The automatic probe pressing device according to claim 1, characterized in that: The positioning member (330) comprises a hollow insertion portion (331), and a magnifying glass (400) is provided on both the lifting device (320) and the pressing assembly (220).

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