Manual mechanical arm for chip testing head

Abstract

The utility model discloses a manual mechanical arm for a chip testing head, which comprises a bottom plate, a vertical column arranged on the bottom plate, a lifting plate connected to the vertical column, a first section arm rotatably connected to the lifting plate, a second section arm rotatably connected to the first section arm, a third section arm rotatably connected to the second section arm, and a rotating shaft index plate connected to the third section arm. Connecting shafts and locking pieces are connected between the lifting plate and the first section arm, between the first section arm and the second section arm and between the second section arm and the third section arm, a positioning assembly is arranged on the third section arm, and a rotating shaft is arranged in the third section arm in a penetrating mode, penetrates through the center of a rotating shaft index plate and is fixedly connected with the rotating shaft index plate. And a second locking handle for locking the rotating shaft is arranged on the third section arm. The beneficial effects of the utility model are that the height, front-back, left-right and angle adjustment of the chip testing head in a specific range can be realized, so that the testing head can test chips at different positions and angles conveniently, and manual adjustment is facilitated; the manufacturing cost is low, and use and development of small and medium-sized enterprises are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of chip testing, in particular to a manual mechanical arm for a chip testing head. Background Art

[0002] With the advancement of technology, the chip industry is developing rapidly. Miniaturization and multifunctionality are the trends of the modern chip industry. Testing chips during manufacturing is a crucial step in the entire chip processing process. Chip testing requires a tester. During testing, the chip is placed between the tester's chip test head and the machine platform. A robotic arm drives the test head to move and test the chip. Existing robotic arms are mostly intelligent robotic arms, which are expensive and unsuitable for the development of small and medium-sized enterprises. Some manual test arms also exist, but their simple structures allow only horizontal or vertical movement within a limited space, making them incapable of testing chips at specific angles. For example, patent publication number CN115194818A discloses a manually adjustable robotic arm for chip testing. This arm, which manually adjusts the rotation of three arm segments to drive the test head and achieve horizontal displacement, is capable of driving the test head to rotate to a certain angle. While this can drive the test head to rotate to a certain angle, it is unable to test chips at certain angles. Therefore, research on robotic arms for chip test heads remains a key area of ​​research in chip testing. Utility Model Content

[0003] The purpose of the present utility model is to provide a manual robotic arm for a chip test head to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a manual robotic arm for a chip test head, comprising a base plate, a column provided on the base plate, a lifting plate connected to the column, a first arm section rotatably connected to the lifting plate, the first arm section rotatably connected to the second arm section, the second arm section rotatably connected to the third arm section, the third arm section is connected to a rotating shaft indexing disk, a connecting shaft and a locking member are connected between the lifting plate and the first arm section, the first arm section and the second arm section, and the second arm section and the third arm section, a positioning assembly is provided on the third arm section, a rotating shaft is passed through the third arm section, the rotating shaft is inserted in the center of the rotating shaft indexing disk and is fixedly connected to the rotating shaft indexing disk, and a second locking handle for locking the rotating shaft is provided on the third arm section.

[0005] Further preferably, the rotating shaft indexing plate is a circular structure, and is provided with a plurality of positioning holes and mounting holes along its circumference. The positioning holes and mounting holes are both circular through-holes, and the mounting holes are disposed inside the positioning holes. The positioning holes are used to cooperate with the positioning assembly to secure the rotating shaft indexing plate; the mounting holes are used to mount the test head.

[0006] Further preferably, the positioning assembly includes a fixed block and a positioning pin, the fixed block is fixed to the side of the third section arm, the positioning pin is installed on the fixed block, the positioning pin matches the positioning hole, the positioning pin is installed through the fixed block, and the rotating shaft dividing plate is fixed through the positioning pin.

[0007] Further preferably, the middle part of the locating pin is provided with a thread for being screwed to the fixed block to fix the locating pin relative to the fixed block; its threaded part is screwed to the fixed block and the end of the threaded part away from the rotating shaft dividing plate is screwed with a nut to prevent retreat.

[0008] Further preferably, the locking member includes a locking block and a first locking handle, the locking block being provided with a connecting shaft hole and a locking hole, the connecting shaft hole being connected to a slot penetrating the locking block, the locking hole penetrating the locking block and perpendicularly intersecting the slot, the first locking handle being cooperatively connected to the locking hole. The connecting shaft hole is used for passing the connecting shaft through and locking the connecting shaft, the slot is used for deforming the connecting shaft hole, and the locking hole is used for installing the first locking handle. By rotating the first locking handle, the gap in the slot is reduced, thereby facilitating the deformation of the connecting shaft hole.

[0009] Further preferably, the locking block is provided with at least one fault-tolerant groove, which is connected to the connecting shaft hole, reducing the difficulty of deformation of the connecting shaft hole; the locking block is provided with at least two fixing holes, which are countersunk holes for fixing the locking block; the cross-section of the fault-tolerant groove away from the connecting shaft hole end is wider than the cross-section close to the connecting shaft hole end, reducing the difficulty of deformation of the fault-tolerant groove, and further reducing the difficulty of deformation of the connecting shaft hole.

[0010] Further preferably, the lifting plate is provided with two connecting flanges connected to the first arm section, and the connecting shaft between the lifting plate and the first arm section is rotatably installed between the two connecting flanges, and the connecting flanges facilitate the installation of the connecting shaft and the rotation of the first arm section; both ends of the second arm section are connected to a connecting shaft, and the first arm section and the second arm section are provided with locking screws for fixing the connecting shaft, so as to realize the fixation of the connecting shaft at one end of the first arm section and both ends of the second arm section.

[0011] It is further preferred that the first arm section is provided with an avoidance groove near the end of the second arm section for rotation avoidance of the second arm section; the upper and lower sides of the third arm section are provided with side panels, the length of the side panels is longer than that of the third arm section, and a groove is formed between the two side panels near the end of the second arm section and the third arm section to facilitate the rotation of the third arm section relative to the second arm section; the second arm section is provided with a limiting groove near the end surface of the first arm section for limiting the rotation angle of the second arm section.

[0012] It is further preferred that the column is provided with two linear guide rails connected to the lifting plate to facilitate the lifting and lowering of the lifting plate; a connecting block is provided between the upper end of the lifting plate and the linear guide rail, and a third locking handle is provided on the side of the connecting block, that is, the connecting block can be fixed to the linear guide rail through the third locking handle, thereby realizing the fixation of the lifting plate on the linear guide rail, and finally realizing the height adjustment of the connected test head; a fourth locking handle is provided at the lower middle part of the lifting plate, which is used to lock and fix the lifting plate when the lifting plate is at the lower end of the linear guide rail, thereby playing a supporting and positioning role.

[0013] Further preferably, the side of the column is provided with a height-adjustable keyboard seat and monitor seat, and the base plate is provided with a chassis seat to realize the installation of the computer keyboard, monitor and chassis, and facilitate operation; universal wheels and feet are provided under the base plate to facilitate the movement and fixation of the manual robotic arm.

[0014] Beneficial effects: The chip test head of the utility model uses a manual robotic arm, which realizes the position adjustment of the rotating shaft indexing plate through the relative rotation of the first arm section, the second arm section and the third arm section, and the rotating shaft and the positioning assembly can adjust the rotating shaft indexing plate to a set angle, while the second locking handle and the rotating shaft can realize the special rotation angle of the rotating shaft indexing plate, and the linear guide rail can be used to adjust the height of the rotating shaft indexing plate, that is, the test head of the tester can finally be adjusted in height, front and back, left and right and angle within a specific range, which is convenient for the test head to test chips at different positions and angles, and the adjustment is convenient, and it is convenient for manual adjustment; the keyboard seat, monitor seat, and chassis seat are used to facilitate the installation of computer components and manual operation; the manual robotic arm has a clever structural design, can be moved, the arm sections are easy to adjust, and it is easy to operate, can detect a small number of chips, and the detection cost is low. At the same time, the manufacturing cost of the manual robotic arm is low, which is conducive to the use and development of small and medium-sized enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the isometric structure of a manual robotic arm for a chip test head disclosed in an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the main structure of a manual robotic arm for a chip test head disclosed in an embodiment of the present utility model;

[0017] Figure 3 A schematic diagram of the structure of the first arm section, the second arm section and the third arm section disclosed in an embodiment of the present utility model being connected to each other;

[0018] Figure 4 A schematic diagram of the matching structure between the first arm section and the connecting shaft disclosed in an embodiment of the present utility model;

[0019] Figure 5 A schematic diagram of the coordination structure between the second arm section, the third arm section, and the rotating shaft indexing plate disclosed in an embodiment of the present utility model;

[0020] Figure 6 This is a schematic structural diagram of the locking block disclosed in an embodiment of the present utility model.

[0021] Figure markings: 1-base plate, 2-column, 3-lifting plate, 4-first arm section, 41-avoidance groove, 5-second arm section, 6-third arm section, 7-rotating shaft indexing plate, 71-positioning hole, 72-mounting hole, 8-connecting shaft, 9-locking piece, 91-locking block, 911-connecting shaft hole, 912-slot, 913-locking hole, 914-fixing hole, 915-fault-tolerant groove, 92-first locking handle, 10-rotating shaft, 11-positioning assembly, 12-second locking handle, 13-connecting flange, 14-locking screw, 15-linear guide rail, 16-connecting block, 17-third locking handle, 18-fourth locking handle, 19-keyboard seat, 20-display seat, 21-chassis seat, 22-universal wheel, 23-foot. DETAILED DESCRIPTION

[0022] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0023] like Figure 1-6As shown, a manual robotic arm for a chip test head is used to connect with a test head of a chip tester and can drive the test head to move. The manual robotic arm includes a base plate 1, a column 2, and a lifting plate 3. The lifting plate 3 is rotatably connected to the first arm 4, the first arm 4 is rotatably connected to the second arm 5, the second arm 5 is rotatably connected to the third arm 6, and the third arm 6 is connected to a rotating shaft indexing plate 7. That is, the base plate 1 and the column 2 are used to support the lifting plate 3, the first arm 4, the second arm 5 and the third arm 6. The lifting plate 3 is used to drive the first arm 4, the second arm 5 and the third arm 6 to rise and fall, thereby realizing height adjustment of the first arm 4, the second arm 5 and the third arm 6; the first arm 4, the second arm 5 and the third arm 6 are rotatably connected to each other, which is convenient for adjusting the position of the rotating shaft indexing plate 7 connected to the third arm 6 in the corresponding horizontal plane, and can move back and forth, left and right or rotate within the corresponding horizontal plane, and can move the test head of the tester to any position, ensuring that the test head can accurately test the chip and ensure the test yield of the chip. Connecting shafts 8 and locking members 9 are connected between the lifting plate 3 and the first arm section 4, the first arm section 4 and the second arm section 5, and the second arm section 5 and the third arm section 6. The connecting shafts 8 enable the first, second, and third arm sections 4, 5, and 6 to be connected and rotated with each other. The locking members 9 secure the rotated first, second, and third arms 4, 5, 6, preventing them from being relative to each other, thus ensuring the stable position of the adjusted rotating shaft indexing plate 7 and the test head connected thereto. A positioning assembly 11 is provided on the third arm section 6 for securing the position of the rotating shaft indexing plate 7. A rotating shaft 10 is passed through the third arm 6, and the rotating shaft 10 is inserted into the center of the rotating shaft dividing plate 7 and is fixedly connected to the rotating shaft dividing plate 7. A second locking handle 12 for locking the rotating shaft 10 is provided on the third arm 6, and is connected to the rotating shaft dividing plate 7 through the rotating shaft 10. At the same time, the second locking handle 12 can lock the rotating shaft 10 to prevent the rotating shaft 10 from rotating, thereby limiting the rotation of the rotating shaft dividing plate 7, and realizing the rotation of the rotating shaft dividing plate 7 to a limited angle, and then rotating the test head to a limited angle, thereby realizing chip testing at special angles.

[0024] In one embodiment of the present application, the rotating shaft indexing plate 7 is a circular structure, and a plurality of positioning holes 71 and mounting holes 72 are provided on the rotating shaft indexing plate 7 along its circumference. By providing the positioning holes 71, the rotating shaft indexing plate 7 can be rotated to a set angle, thereby achieving angle adjustment of the test head connected to the rotating shaft indexing plate 7; and in this embodiment, the plurality of positioning holes 71 are evenly arranged around the circumference, for example, one positioning hole 71 every 5 degrees. The mounting holes 72 facilitate the installation of the test head, and the plurality of mounting holes 72 are also evenly arranged around the circumference. The circular positioning holes 71 and mounting holes 72 facilitate the positioning of the rotating shaft indexing plate 7 and the installation of the test head. The mounting holes 72 are provided on the inner side of the positioning holes 71, and the positioning holes 71 can be provided with the largest circumference, facilitating the provision of more positioning holes 71, thereby maximally limiting the rotation angle of the rotating shaft indexing plate 7; and, based on the principle of leverage, the positioning assembly 11 can limit the rotation of the rotating shaft indexing plate 7 with minimal force.

[0025] Based on the above solution, the positioning assembly 11 includes a fixed block 111 and a positioning pin 112. The fixed block 111 is fixed to the side of the third arm section 6, and the positioning pin 112 is installed on the fixed block 111. The positioning pin 112 matches the positioning hole 71. That is, by inserting the positioning pin 112 into the positioning hole 71 on the rotating shaft index plate 7, the rotation angle of the rotating shaft index plate 7 is positioned. The fixed block 111 is used to install and limit the positioning pin 112.

[0026] Based on the above scheme, a thread is provided in the middle of the locating pin 112. By providing a thread in the middle of the locating pin 112, it is convenient to screw the locating pin 112 to the fixed block 111, which makes it convenient to install the locating pin 112 on the fixed block 111, and can prevent the locating pin 112 from falling or being lost; the threaded portion of the locating pin 112 is screwed to the fixed block 111 and a nut is screwed at the end of the threaded portion away from the rotating shaft dividing plate 7, which can prevent the locating pin 112 from loosening or sliding, and ensure that the locating pin 112 can remain stable when inserted into the locating hole 71 and will not fall off from the locating hole 71.

[0027] In another embodiment of the present application, the locking member 9 includes a locking block 91 and a first locking handle 92. The locking block 91 is provided with a connecting shaft hole 911 and a locking hole 913. The connecting shaft hole 911 is connected to a slot 912 that passes through the locking block 91. The locking hole 913 passes through the locking block 91 and intersects the slot 912 at right angles. The first locking handle 92 is engaged with the locking hole 913. The engagement of the locking block 91 and the first locking handle 92 secures the connecting shaft 8. The locking and fixing of the connecting shaft 8 is achieved by the locking piece 9, wherein the connecting shaft hole 911 is used for inserting the connecting shaft 8, and the locking hole 913 is used for installing the first locking handle 92. The locking hole 913 is divided into two parts by the slot 912, one part is a light hole, and the other part is a screw hole. When the first locking handle 92 is rotated, the locking hole 913 divided into two parts can gradually approach each other, thereby causing the connecting shaft hole 911 to deform, and its hole area gradually becomes smaller, so that the hole wall of the connecting shaft hole 911 can lock the connecting shaft 8, thereby fixing the connecting shaft 8.

[0028] Based on the above solution, the locking block 91 is provided with at least one fault-tolerant groove 915, which is connected to the connecting shaft hole 911. The provision of the fault-tolerant groove 915 can reduce the difficulty of deformation of the connecting shaft hole 911, making it easier for the connecting shaft hole 911 to lock the connecting shaft 8. The cross-section of the fault-tolerant groove 915 away from the connecting shaft hole 911 is wider than the cross-section near the connecting shaft hole 911, reducing the difficulty of deformation of the fault-tolerant groove 915, and thus indirectly reducing the difficulty of deformation of the connecting shaft hole 911. The locking block 91 is provided with at least two fixing holes 914, which facilitate the fixing of the locking block 91. The fixing holes 914 are countersunk holes for installing countersunk screws.

[0029] In the present application, the lifting plate 3 is provided with two connecting flanges 13 connected to the first arm section 4. The connecting shaft 8 between the lifting plate 3 and the first arm section 4 is rotatably mounted between the two connecting flanges 13, that is, the connecting flanges 13 facilitate the rotatable connection between the lifting plate 3 and the first arm section 4. A connecting shaft 8 is connected to each end of the second arm section 5. The first arm section 4 and the second arm section 5 are both provided with locking screws 14 for fixing the connecting shaft 8, that is, the locking screws 14 facilitate the fixing of the connecting shaft 8 to the first arm section 4 and the second arm section 5. Among them, three connecting shafts 8 are respectively fixed to one end of the first arm section 4 and both ends of the second arm section 5, and three locking members 9 are respectively fixed to the connecting flanges 13, the end of the first arm section 4 close to the second arm section 5, and the end of the third arm section 6 close to the second arm section 5. The three connecting shafts 8 are locked by the three locking members 9, thereby achieving the fixed position of the first arm section 4, the second arm section 5, and the third arm section 6 after rotation.

[0030] In the present application, an avoidance groove 41 is provided near the end of the first arm section 4 near the second arm section 5 to prevent the second arm section 5 from being affected in its rotation relative to the first arm section 4; side plates 61 are provided on both the upper and lower sides of the third arm section 6, and the length of the side plates 61 is longer than that of the third arm section 6. A groove is formed between the ends of the two side plates 61 near the second arm section 5 and the third arm section 6, that is, the structural design of the side plates 61 and the third arm section 6 can prevent the third arm section 6 from being affected in its rotation relative to the second arm section 5. A limiting groove 51 is provided on the end surface of the second arm section 5 near the first arm section 4 to limit the rotation angle of the second arm section 5 relative to the first arm section 4, to prevent the second arm section 5 from rotating too much, resulting in a collision between the second arm section 5 and the first arm section 4, or a collision between the third arm section 6, the rotating shaft indexing plate 7 and the test head.

[0031] In the present application, two linear guide rails 15 connected to the lifting plate 3 are provided on the column 2, which facilitate the lifting and lowering adjustment of the lifting plate 3, and further facilitate the height adjustment of the first arm section 4, the second arm section 5, the third arm section 6, the rotating shaft indexing plate 7 and the connected test head. A connecting block 16 is provided between the upper end of the lifting plate 3 and the linear guide rail 15, and a third locking handle 17 is provided on the side of the connecting block 16. The third locking handle 17 can be used to lock and fix the connecting block 16 and the linear guide rail 15 to achieve the fixation of the lifting plate 3; a fourth locking handle 18 is provided at the lower middle part of the lifting plate 3, which is used to lower the lifting plate 3 to the lower end of the linear guide rail 15 when the manual robotic arm is not in use. The fourth locking handle 18 can cooperate with the limiting hole on the column 2 to lock and fix the lifting plate 3, ensuring the safety of the manual robotic arm and improving its service life.

[0032] In the solution of the present application, a height-adjustable keyboard seat 19 and monitor seat 20 are provided on the side of the column 2. The keyboard seat 19 is used to place a computer keyboard, and the monitor seat 20 is used to place a computer monitor. Two supports are provided on the side of the column 2, and a support rod is connected between the two supports. The support rod can slide up and down along the two supports. A keyboard seat 19 and a monitor seat 20 are connected to the top and middle of the support rod respectively. The keyboard seat 19 and the monitor seat 20 can be adjusted up and down along the support rod and can also rotate around the support rod to adjust the height and angle of the keyboard seat 19 and the monitor seat 20, that is, adjust the position of the computer keyboard and monitor, so that the operator can operate and view data. A chassis seat 21 is provided on the bottom plate 1 for placing the computer host. Universal wheels 22 and feet 23 are provided below the bottom plate 1. The universal wheels 22 can be used to move the manual robot arm for easy position adjustment. The feet 23 can be used to fix the position of the manual robot arm after position adjustment to prevent the universal wheels 22 from rolling due to force.

[0033] In the present application, by rotating the first arm section 4, the second arm section 5 and the third arm section 6, and fixing the rotated first arm section 4, the second arm section 5 and the third arm section 6 by the locking member 9, the position adjustment of the rotating shaft dividing plate 7 is achieved, and then the position adjustment of the test head connected to the rotating shaft dividing plate 7 is achieved, including the front and back, left and right positions within a specific position range; the positioning hole 71 on the rotating shaft dividing plate 7 and the positioning pin 112 of the positioning assembly 11 are matched to realize the rotation of the test head to a set angle; and by locking the rotating shaft 10 with the second locking handle, the test head can be rotated to a special angle; the test head height adjustment is realized by the linear guide rail, that is, the manual robotic arm can realize the testing of chips at different positions or angles, and is convenient for manual adjustment.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A manual robot arm for a chip test head, comprising a base plate (1), a column (2) provided on the base plate (1), a lifting plate (3) connected to the column (2), a first arm section (4) rotatably connected to the lifting plate (3), the first arm section (4) rotatably connected to the second arm section (5), the second arm section (5) rotatably connected to the third arm section (6), the third arm section (6) connected to a rotating shaft indexing plate (7), characterized in that: A connecting shaft (8) and a locking member (9) are connected between the lifting plate (3) and the first arm section (4), the first arm section (4) and the second arm section (5), and the second arm section (5) and the third arm section (6); a positioning assembly (11) is provided on the third arm section (6); a rotating shaft (10) is passed through the inside of the third arm section (6); the rotating shaft (10) is inserted into the center of the rotating shaft indexing plate (7) and is fixedly connected to the rotating shaft indexing plate (7); and a second locking handle (12) for locking the rotating shaft (10) is provided on the third arm section (6).

2. The manual robotic arm for a chip test head according to claim 1, characterized in that: The rotating shaft indexing plate (7) is a circular structure. A plurality of positioning holes (71) and mounting holes (72) are provided on the rotating shaft indexing plate (7) along its circumferential direction. Both the positioning holes (71) and the mounting holes (72) are circular through holes. The mounting holes (72) are provided on the inner side of the positioning holes (71).

3. The manual robot arm for a chip test head according to claim 2, characterized in that: The positioning assembly (11) comprises a fixed block (111) and a positioning pin (112), wherein the fixed block (111) is fixed to the side of the third arm (6), and the positioning pin (112) is mounted on the fixed block (111), and the positioning pin (112) matches the positioning hole (71).

4. The manual robotic arm for a chip test head according to claim 3, characterized in that: The middle portion of the positioning pin (112) is provided with a thread, the threaded portion is screwed to the fixed block (111), and the end of the threaded portion away from the rotating shaft indexing plate (7) is screwed to a nut.

5. The manual robot arm for a chip test head according to claim 1, characterized in that: The locking member (9) comprises a locking block (91) and a first locking handle (92); the locking block (91) is provided with a connecting shaft hole (911) and a locking hole (913); the connecting shaft hole (911) is connected to a slot (912) passing through the locking block (91); the locking hole (913) passes through the locking block (91) and intersects the slot (912) vertically; the first locking handle (92) is cooperatively connected with the locking hole (913).

6. The manual robot arm for a chip test head according to claim 5, characterized in that: The locking block (91) is provided with at least one fault-tolerant groove (915), the fault-tolerant groove (915) is communicated with the connecting shaft hole (911), the locking block (91) is provided with at least two fixing holes (914), the fixing holes (914) are countersunk holes, and the cross section of the fault-tolerant groove (915) away from the connecting shaft hole (911) is wider than the cross section of the end close to the connecting shaft hole (911).

7. The manual robotic arm for a chip test head according to claim 1, characterized in that: The lifting plate (3) is provided with two connecting flanges (13) connected to the first arm section (4); the connecting shaft (8) between the lifting plate (3) and the first arm section (4) is rotatably installed between the two connecting flanges (13); both ends of the second arm section (5) are connected to a connecting shaft (8); and the first arm section (4) and the second arm section (5) are both provided with locking screws (14) for fixing the connecting shaft (8).

8. The manual robotic arm for a chip test head according to claim 1, characterized in that: The first arm section (4) is provided with an avoidance groove (41) at the end close to the second arm section (5), and the third arm section (6) is provided with side plates (61) on both the upper and lower sides. The length of the side plates (61) is longer than that of the third arm section (6), and a groove is formed between the two side plates (61) at the end close to the second arm section (5) and the third arm section (6); and the second arm section (5) is provided with a limiting groove (51) at the end face close to the first arm section (4).

9. The manual robotic arm for a chip test head according to claim 1, characterized in that: The column (2) is provided with two linear guide rails (15) connected to the lifting plate (3); a connecting block (16) is provided between the upper end of the lifting plate (3) and the linear guide rails (15); a third locking handle (17) is provided on the side of the connecting block (16); and a fourth locking handle (18) is provided at the lower middle portion of the lifting plate (3).

10. The manual robot arm for a chip test head according to claim 1, characterized in that: A keyboard seat (19) and a display seat (20) with adjustable height are provided on the side of the column (2); a chassis seat (21) is provided on the bottom plate (1); and universal wheels (22) and a foot (23) are provided below the bottom plate (1).

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