A multi-purpose robotic arm base

Abstract

The present invention relates to the technical field of robotic arms, and discloses a multi-purpose robotic arm base, comprising a base body and a robotic arm body, the base body comprising a first base frame, the bottom of the first base frame being fixed with a second base frame by bolts, a positioning module for changing the robotic arm body being provided between the inner walls on both sides of the first base frame, and a power component for providing power for the movement of the positioning module being provided between the inner walls on both sides of the second base frame, a connecting module for fixing the robotic arm body being provided between the positioning module and the robotic arm body, the present invention can change the position of the robotic arm body through the coordinated use of the positioning module, the power component and the connecting module, thereby expanding the working range of the robotic arm body, without the need to use multiple robotic arms to expand the working range, and can arrange different operating requirements according to the position of the robotic arm body, thereby improving the applicability of the robotic arm.

Description

Technical Field

[0001] The present invention relates to the technical field of robotic arms, and in particular to a multi-purpose robotic arm base. Background Art

[0002] Robotic arm is the abbreviation of mechanical arm. Robotic arm is the most widely used automated mechanical device in the field of robotic technology. The arm generally has three movements: extension, rotation and lifting. The rotation and lifting movements are completed by the cross arm and the column.

[0003] The basic function of the arm is to move the gripper to the required position and bear the maximum weight of the workpiece grasped by the gripper, as well as the weight of the arm itself. In addition, it is also related to the fixed stability of the base.

[0004] After searching, the Chinese patent publication number CN220007847U discloses a robotic arm with a liftable base, which increases the working space of the mechanical chuck mechanism. The robotic arm can complete more tasks that can replace manual labor. However, the following problems still exist:

[0005] 1. When the robotic arm is in use, the base is mostly fixed to the ground to provide support for the robotic arm. However, when working on a long workstation, if one robotic arm is used, it can only perform a single operation at a fixed position. If two or more robotic arms are used, the cost of the factory will increase.

[0006] 2. When using a robotic arm with adjustable position, it is easy for the robotic arm's fixed support force to be insufficient, causing the robotic arm to tip over during use, thereby damaging the robotic arm. Summary of the Invention

[0007] In response to the shortcomings of the existing technology, the present invention provides a multi-purpose robotic arm base, which is mainly used to solve the problem that when the robotic arm is in use, the base is mostly fixed on the ground to provide support for the robotic arm. However, when working on a workstation that is too long, if one robotic arm is used, only a single operation can be performed at a fixed position. If two or more robotic arms are used, the cost of the factory will increase. When using a robotic arm with adjustable position, the fixed support force of the robotic arm is prone to insufficient, which may cause the robotic arm to tip over during use, thereby damaging the robotic arm.

[0008] Technical solution: To achieve the above-mentioned purpose, the present invention provides the following technical solution:

[0009] A multi-purpose robotic arm base includes a base body and a robotic arm body, the base body includes a first base frame, the bottom of the first base frame is fixed with a second base frame by bolts, an adjustment module for changing the robotic arm body is provided between the inner walls on both sides of the first base frame, and a power component for providing power for the movement of the adjustment module is provided between the inner walls on both sides of the second base frame, and a connection module for fixing the robotic arm body is provided between the adjustment module and the robotic arm body.

[0010] Furthermore, the positioning module includes two guide rods fixed between the inner walls on both sides of the first base frame, the circumferential outer walls of the two guide rods are slidably connected to a slide, two plug blocks are welded on the top of the slide, and a slot is provided on one side of the plug block. Limiting components for positioning the connecting module are provided on both sides of the slide, and a fixing component for fixing the connecting module is provided at the bottom of the slide.

[0011] On the basis of the above solution, the limiting assembly includes a positioning frame sliding on one side of the slide, the bottom of the positioning frame is fixed with a first spring by a bolt, and the other end of the first spring is fixed to the slide.

[0012] As a further solution of the present invention, the fixing assembly includes a groove opened at the bottom of the slide, in which an electric push rod is fixed by bolts, and a avoidance groove is opened on the top of the slide, in which a U-shaped frame fixed to the electric push rod is slidably connected, and both ends of the U-shaped frame are inserted into the slot through the plug block.

[0013] Furthermore, the power assembly includes a guide rail fixed between the inner walls on both sides of the second base frame, and a linear motor is provided on the top of the guide rail for use therewith.

[0014] Based on the above-mentioned scheme, the connecting module includes a connecting frame arranged on the top of the positioning module, and the main body of the robotic arm is fixed to the top of the connecting frame by bolts. Both sides of the connecting frame are provided with a clamping assembly for auxiliary fixation of the connecting frame and a support module for auxiliary support of the connecting frame.

[0015] As a further solution of the present invention, the clamping assembly includes sliding holes on both sides of the connecting frame, and a U-shaped rod is slidably connected in the sliding holes. The interior of the U-shaped rod is a card slot, and the bottoms of one end of multiple U-shaped rods are inclined surfaces. Both sides of the first base frame are fixed with limit rods that can be inserted into the card slot by bolts. Two insertion holes are provided at the bottom of the connecting frame, and two symmetrical cavities are provided in the connecting frame, and the cavities are respectively connected with the insertion holes and the sliding holes. The opposite sides of the two symmetrical U-shaped rods are rotatably connected to force arms, and the other ends of the two force arms are rotatably connected to a plug-in frame sliding in the cavity. A second spring is fixed to one side of the plug-in frame by bolts, and the other end of the second spring is fixed to the cavity. A positioning hole is provided on the top of the plug-in frame.

[0016] Furthermore, the support module includes two fixing rods fixed to the two ends of the bottom of the connecting frame by bolts, the bottom end of the fixing rod is rotatably connected to the support rod, and a connecting rod is rotatably connected between the two support rods on the same side, a fixing block is welded to the middle part of the outer wall of the circumference of the connecting rod, and a threaded rod is welded to one side of the fixing block. The bottom of both sides of the connecting frame is rotatably connected to the rotating frame, and the bottom of the rotating frame is rotatably connected to a threaded tube sleeved on the outer side of the circumference of the threaded rod, and the threaded tube is threadedly connected to the threaded rod.

[0017] Based on the above solution, one end of each of the plurality of support rods is provided with a plurality of mounting grooves, and balls roll in the mounting grooves.

[0018] As a further solution of the present invention, a first nut is welded to one end of the threaded pipe, and a second nut is threadedly connected to the circumferential outer wall of the threaded rod.

[0019] Beneficial effects: Compared with the prior art, the present invention provides a multi-purpose robotic arm base with the following beneficial effects:

[0020] 1. The present invention can change the position of the robot arm body through the coordinated use of the positioning module, the power assembly and the connection module, thereby expanding the working range of the robot arm body. There is no need to use multiple robot arms to expand the working range. Different operating requirements can be arranged according to the position of the robot arm body, thereby improving the applicability of the robot arm.

[0021] 2. The present invention provides a limit assembly and a positioning frame to position the installation of the connection module, so that the plug can be inserted into the connection module more easily, thereby improving the installation convenience of the device.

[0022] 3. The present invention provides a clamping assembly to assist in fixing both sides of the connecting frame, so that the connecting frame can move on the first base frame without tipping over, thereby further improving the stability of the operation of the robotic arm.

[0023] 4. The present invention is provided with a support module, and the support rod is in contact with the ground to provide auxiliary support for the connecting frame, thereby lowering the center of gravity of the connecting frame and the main body of the robotic arm, making the operation of the main body of the robotic arm more stable.

[0024] 5. The present invention is provided with balls, which replace the support rods to contact the ground, thereby reducing the friction between the support rods and the ground and increasing the service life of the base.

[0025] 6. The present invention provides a first nut and a second nut, and the second nut contacts the first nut, thereby assisting in fixing the threaded tube, preventing the threaded tube from rotating and causing the support rod to lose contact with the ground and lose support, thereby improving the stability of the support rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1This is a schematic diagram of the three-dimensional structure of a multi-purpose robotic arm base proposed by the present invention;

[0027] Figure 2 This is a schematic diagram of the enlarged structure of the base body of a multi-purpose robotic arm base proposed in the present invention;

[0028] Figure 3 This is a schematic diagram of the enlarged structure of the positioning module of the multi-purpose robotic arm base proposed by the present invention;

[0029] Figure 4 This is a schematic cross-sectional structural diagram of a positioning module of a multi-purpose robotic arm base proposed by the present invention;

[0030] Figure 5 This is a schematic diagram of the enlarged structure of a connection module of a multi-purpose robotic arm base proposed by the present invention;

[0031] Figure 6 This is a schematic cross-sectional structural diagram of a connection module of a multi-purpose robotic arm base proposed by the present invention;

[0032] Figure 7 A multi-purpose robotic arm base proposed by the present invention Figure 6 Schematic diagram of a local enlarged structure;

[0033] Figure 8 This is a schematic diagram of the enlarged structure of a support module of a multi-purpose robotic arm base proposed by the present invention;

[0034] Figure 9 This is a schematic cross-sectional structural diagram of a support module of a multi-purpose robotic arm base proposed by the present invention.

[0035] In the figure: 1. Base body; 101. First base frame; 102. Second base frame; 103. Limit rod; 104. Guide rod; 105. Guide rail; 106. Linear motor; 2. Positioning module; 201. Slide; 202. Insert block; 203. Positioning frame; 204. First spring; 205. Slot; 206. U-shaped frame; 207. Avoidance groove; 208. Electric push rod; 3. Connecting module; 301. Connecting frame; 302. Jack; 303. U-shaped rod; 304, inclined plane; 305, sliding hole; 306, cavity; 307, lever arm; 308, second spring; 309, bracket; 310, positioning hole; 311, slot; 4, robot arm body; 5, support module; 501, fixing rod; 502, support rod; 503, mounting slot; 504, ball bearing; 505, connecting rod; 506, fixing block; 507, rotating frame; 508, threaded tube; 509, first nut; 510, second nut; 511, threaded rod. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0037] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings). In the description of the present invention, it should be understood that terms such as "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the device or component being referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0038] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0039] Reference Figures 1-9 , a multi-purpose robotic arm base, comprising a base body 1 and a robotic arm body 4, the robotic arm body 4 adopts a six-axis robotic arm, model UR20, the base body 1 includes a first base frame 101, the bottom of the first base frame 101 is fixed with a second base frame 102 by bolts, and an adjustment module 2 for changing the robotic arm body 4 is provided between the inner walls on both sides of the first base frame 101, and a power component for providing power for the movement of the adjustment module 2 is provided between the inner walls on both sides of the second base frame 102, and a connecting module 3 for fixing the robotic arm body 4 is provided between the adjustment module 2 and the robotic arm body 4. First, the robotic arm body 4 is installed on the connecting module 3, and then the connecting module 3 is combined with the adjustment module 2. The power component can drive the adjustment module 2 to move, and then drive the robotic arm body 4 to move, thereby achieving the purpose of expanding the working range of the robotic arm. At the same time, the connecting module 3 can limit itself and the first base frame 101, so that it is fixed more stably, and then the robotic arm body 4 will not overturn when picking up heavy objects, thereby improving the stability of the robotic arm.

[0040] Furthermore, the positioning module 2 includes two guide rods 104 fixed between the inner walls on both sides of the first base frame 101, and the circumferential outer walls of the two guide rods 104 are slidably connected to a slide 201. Two plug blocks 202 are welded on the top of the slide 201, and a slot 205 is provided on one side of the plug block 202. Both sides of the slide 201 are provided with a limit assembly for positioning the connecting module 3, and the bottom of the slide 201 is provided with a fixing assembly for fixing the connecting module 3. Before the connecting module 3 contacts the slide 201, the limiting assembly is first used to position the connecting module 3 and make the connecting module 3 contact the slide 201. At this time, the plug block 202 will be inserted into the connecting module 3, and then the fixing assembly is used to fix the connecting module 3, thereby realizing the fixed installation of the connecting module 3.

[0041] Furthermore, the limiting assembly includes a positioning frame 203 that slides on one side of the slide 201, and the bottom of the positioning frame 203 is fixed with a first spring 204 by a bolt, and the other end of the first spring 204 is fixed to the slide 201. When the connecting module 3 is installed, the positioning of the connecting module 3 is achieved by the protrusion of one end of the positioning frame 203, that is, during the installation of the connecting module 3, the connecting module 3 is placed in the two positioning frames 203. When the connecting module 3 moves downward for installation, it will push the positioning frame 203 to move downward, thereby compressing the first spring 204 to shrink and deform, giving the positioning frame 203 a continuous upward force, thereby applying a continuous upward force to the connecting module 3. The positioning frame 203 positions the installation of the connecting module 3, so that the plug 202 can be more easily inserted into the connecting module 3, thereby improving the installation convenience of the device.

[0042] Furthermore, the fixing component includes a groove formed at the bottom of the slide 201, in which an electric push rod 208 is fixed by bolts, and a avoidance groove 207 is formed at the top of the slide 201, in which a U-shaped frame 206 fixed to the electric push rod 208 is slidably connected. After the connecting module 3 is connected to the slide 201, the electric push rod 208 is started, and the extension of the electric push rod 208 will drive the U-shaped frame 206 to move upward in the avoidance groove 207, so that one end of the U-shaped frame 206 contacts the top of the slot 205, thereby fixing the connecting module 3 inserted in the slot 205, thereby fixing the adjustment module 2 and the connecting module 3.

[0043] Furthermore, the power assembly includes a guide rail 105 fixed between the inner walls on both sides of the second base frame 102, and a linear motor 106 is provided on the top of the guide rail 105 for use therewith, and the linear motor 106 is fixed to the bottom of the slide 201. When the linear motor 106 is started, the linear motor 106 moves on the guide rail 105, thereby driving the positioning module 2 to move, and then driving the robot arm body 4 to move, thereby achieving the purpose of expanding the working range of the robot arm body 4.

[0044] Furthermore, the connecting module 3 includes a connecting frame 301 arranged on the top of the positioning module 2, and the robot arm body 4 is fixed to the top of the connecting frame 301 by bolts. Both sides of the connecting frame 301 are provided with a clamping component for auxiliary fixation of the connecting frame 301 and a support module 5 for auxiliary support of the connecting frame 301. When the connecting module 3 is installed, the connecting frame 301 will be in contact with the slide 201, and the clamping component will be used to assist in positioning the connecting frame 301. The support module 5 will contact the ground to support the connecting frame 301, thereby expanding the support range of the connecting frame 301 and further improving the stability of the robot arm body 4.

[0045] Furthermore, the clamping assembly includes sliding holes 305 provided on both sides of the connecting frame 301, a U-shaped rod 303 is slidably connected in the sliding hole 305, the interior of the U-shaped rod 303 is a card slot 311, and the bottom of one end of the plurality of U-shaped rods 303 are all inclined surfaces 304. Both sides of the first base frame 101 are fixed with the limiting rod 103 by bolts, and two sockets 302 are provided at the bottom of the connecting frame 301, and the plug 202 can be inserted into the sockets 302. Two symmetrical cavities 306 are provided in the connecting frame 301, and the cavities 306 are respectively connected to the socket 302 and the sliding hole 305, and the bottom of the cavity 306 is The cover is openable. When the cover is opened, the parts can be placed in the cavity 306. The shape of the cover is the same as that of the cavity 306. The opposite sides of the two symmetrical U-shaped rods 303 are rotatably connected to the force arms 307. The other ends of the two force arms 307 are rotatably connected to the plug-in frame 309 that slides in the cavity 306, and the plug-in frame 309 can be inserted into the slot 205. A second spring 308 is fixed to one side of the plug-in frame 309 by a bolt, and the other end of the second spring 308 is fixed to the cavity 306. A positioning hole 310 is provided on the top of the plug-in frame 309, and one end of the U-shaped frame 206 can be inserted into the positioning hole 310. The cam 303 of the U-shaped rod 303 is pressed against the locking cam 311, and the locking cam 311 is pressed against the locking cam 311, thereby fixing the connecting frame 301. At the same time, the insert block 202 is inserted into the insertion hole 302. During the movement of the U-shaped rod 303, the U-shaped rod 303 pulls one end of the power arm 307, so that the other end of the power arm 307 pulls the insert frame 309 in the cavity 3. When the second spring 308 is pressed against the stopper 306, the second spring 308 will be compressed and the second spring 308 will be compressed to generate elastic force. When the limit rod 103 is inserted into the card slot 311, the compressed second spring 308 will be reset to push one end of the bracket 309 into the slot 205 and can be inserted into the positioning hole 310 by the U-shaped bracket 206, thereby completing the installation of the connecting frame 301 and auxiliary fixing both sides of the connecting frame 301 so that it can move on the first base frame 101 without tipping over, further improving the stability of the robot arm operation.

[0046] Furthermore, the support module 5 includes two fixing rods 501 fixed to the two ends of the bottom of the connecting frame 301 by bolts, the bottom end of the fixing rod 501 is rotatably connected to the support rod 502, and the two support rods 502 on the same side are rotatably connected to the connecting rod 505. The middle part of the outer wall of the circumference of the connecting rod 505 is welded with a fixing block 506, and one side of the fixing block 506 is welded with a threaded rod 511. The bottom of both sides of the connecting frame 301 is rotatably connected to the rotating frame 507, and the bottom of the rotating frame 507 is rotatably connected to a screw threaded rod 511. The threaded tube 508 on the side is threadedly connected to the threaded rod 511. The threaded tube 508 is rotated to move the threaded rod 511 out of or into the threaded tube 508, thereby changing the total length of the threaded tube 508 and the threaded rod 511, thereby changing the distance between the connecting rod 505 and the rotating frame 507, thereby pushing the support rod 502 to rotate, and then making the support rod 502 contact with the ground, providing auxiliary support for the connecting frame 301, lowering the center of gravity of the connecting frame 301 and the robot arm body 4, and making the operation of the robot arm body 4 more stable.

[0047] Furthermore, multiple mounting grooves 503 are provided at one end of the multiple support rods 502, and balls 504 roll in the mounting grooves 503. When the support rods 502 come into contact with the ground, the balls 504 replace the support rods 502 in contact with the ground, which can reduce the friction between the support rods 502 and the ground and increase the service life of the base.

[0048] Furthermore, a first nut 509 is welded to one end of the threaded tube 508, and a second nut 510 is threadedly connected to the circumferential outer wall of the threaded rod 511. When there is no need to adjust the length between the threaded tube 508 and the threaded rod 511, the second nut 510 is rotated to make the second nut 510 contact with the first nut 509, thereby assisting in fixing the threaded tube 508, preventing the threaded tube 508 from rotating and causing the support rod 502 to lose contact with the ground and lose support, thereby improving the stability of the support of the support rod 502.

[0049] The present invention is divided into the following steps when used:

[0050] S1: First, the robot arm body 4 is mounted on the connecting frame 301, and then the connecting frame 301 is moved above the slide 201, and then the connecting frame 301 is moved downward so that the connecting frame 301 is located between the two positioning frames 203;

[0051] S2: Moving the connecting frame 301 downward pushes the positioning frame 203 downward, thereby compressing the first spring 204 and causing it to shrink and deform, exerting a continuous upward force on the positioning frame 203, thereby exerting a continuous upward force on the connecting frame 301, assisting in pushing the connecting frame 301 until the inclined surface 304 at one end of the U-shaped rod 303 contacts the limiting rod 103;

[0052] S3: The connecting frame 301 continues to move downward. The limiting rod 103 presses the inclined surface 304 at one end of the U-shaped rod 303, causing the U-shaped rod 303 to slide in the sliding hole 305. As a result, the U-shaped rod 303 can pass over the limiting rod 103 and the limiting rod 103 is engaged in the engaging groove 311, thereby fixing the connecting frame 301. At the same time, the downward movement of the connecting frame 301 causes the insert block 202 to be inserted into the insert hole 302.

[0053] S4: During the movement of the U-shaped rod 303, the U-shaped rod 303 pulls one end of the power arm 307, so that the other end of the power arm 307 pulls the inserting rack 309 to slide in the cavity 306, so that one end of the inserting rack 309 moves out of the insertion hole 302 and into the cavity 306. At the same time, the inserting rack 309 squeezes the second spring 308 to contract and generate elastic force;

[0054] S5: When the limiting rod 103 is inserted into the slot 311, the compressed second spring 308 is reset to push one end of the inserting bracket 309 into the slot 205;

[0055] S6: Start the electric push rod 208. The extension of the electric push rod 208 drives the U-shaped frame 206 to move upward in the avoidance groove 207, so that one end of the U-shaped frame 206 passes through the positioning hole 310 on the insertion frame 309 and contacts the top of the slot 205, thereby fixing the insertion frame 309 inserted in the slot 205, thereby completing the fixation of the slide 201 and the connecting frame 301;

[0056] S7: Rotate the threaded tube 508 so that the threaded rod 511 moves out of or into the threaded tube 508, thereby changing the total length of the threaded tube 508 and the threaded rod 511, thereby changing the distance between the connecting rod 505 and the rotating frame 507, thereby pushing the support rod 502 to rotate, thereby making the support rod 502 contact the ground, and providing auxiliary support for the connecting frame 301;

[0057] S8: Start the linear motor 106 to move on the guide rail 105, thereby driving the slide 201 and the connecting frame 301 to move, and then driving the robot arm body 4 to move, thereby achieving the purpose of expanding the working range of the robot arm body 4.

[0058] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The above-described embodiments merely illustrate several embodiments of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A multi-purpose robotic arm base, comprising a base body (1) and a robotic arm body (4), characterized in that: The base body (1) comprises a first base frame (101), the bottom of the first base frame (101) is fixedly connected to a second base frame (102), a position adjustment module (2) for changing the position of the robot arm body (4) is provided between the inner walls on both sides of the first base frame (101), and a power component for providing power for the position adjustment module (2) to move is provided between the inner walls on both sides of the second base frame (102), and a connection module (3) for fixing the robot arm body (4) is provided between the position adjustment module (2) and the robot arm body (4); The connecting module (3) comprises a connecting frame (301) arranged on the top of the positioning module (2), and the robot arm body (4) is fixedly connected to the top of the connecting frame (301), and both sides of the connecting frame (301) are provided with a clamping assembly for auxiliary fixing of the connecting frame (301) and a supporting module (5) for auxiliary supporting the connecting frame (301); The clamping assembly comprises sliding holes (305) provided on both sides of the connecting frame (301), a U-shaped rod (303) being slidably connected in the sliding holes (305), a card slot (311) being provided inside the U-shaped rod (303), the bottoms of one end of the plurality of U-shaped rods (303) being inclined surfaces (304), a limiting rod (103) which can be inserted into the card slot (311) being fixedly connected to both sides of the first base frame (101), two jacks (302) being provided at the bottom of the connecting frame (301), and two symmetrical slots (303) being provided inside the connecting frame (301). The cavity (306) is connected to the insertion hole (302) and the sliding hole (305) respectively. The opposite sides of the two symmetrical U-shaped rods (303) are rotatably connected to the force arms (307). The other ends of the two force arms (307) are rotatably connected to the insertion rack (309) that slides in the cavity (306). One side of the insertion rack (309) is fixedly connected to the second spring (308), and the other end of the second spring (308) is fixed to the cavity (306). A positioning hole (310) is opened on the top of the insertion rack (309).

2. A multi-purpose robotic arm base according to claim 1, characterized in that: The positioning module (2) comprises two guide rods (104) fixed between the inner walls on both sides of the first base frame (101); the circumferential outer walls of the two guide rods (104) are slidably connected to a slide seat (201); two plug blocks (202) are fixedly connected to the top of the slide seat (201); a slot (205) is provided on one side of the plug block (202); both sides of the slide seat (201) are provided with a limit assembly for positioning the connection module (3); and the bottom of the slide seat (201) is provided with a fixing assembly for fixing the connection module (3).

3. The multi-purpose robotic arm base according to claim 2, characterized in that: The limiting assembly comprises a positioning frame (203) sliding on one side of the slide (201); a first spring (204) is fixedly connected to the bottom of the positioning frame (203), and the other end of the first spring (204) is fixed to the slide (201).

4. The multi-purpose robotic arm base according to claim 2, characterized in that: The fixing assembly includes a groove formed at the bottom of the slide (201), an electric push rod (208) being fixedly connected in the groove, a position-avoiding groove (207) formed at the top of the slide (201), a U-shaped frame (206) fixed to the electric push rod (208) being slidably connected in the position-avoiding groove (207), and both ends of the U-shaped frame (206) pass through the insert block (202) and are inserted into the slot (205).

5. The multi-purpose robotic arm base according to claim 1, characterized in that: The power assembly comprises a guide rail (105) fixed between the inner walls on both sides of the second base frame (102), and a linear motor (106) used in conjunction with the guide rail (105) is provided on the top of the guide rail (105).

6. The multi-purpose robotic arm base according to claim 1, characterized in that: The support module (5) comprises two fixed rods (501) fixedly connected to the two ends of the bottom of the connecting frame (301), the bottom ends of the fixed rods (501) are rotatably connected to the support rods (502), a connecting rod (505) is rotatably connected between the two support rods (502) on the same side, a fixed block (506) is fixedly connected to the middle part of the circumferential outer wall of the connecting rod (505), one side of the fixed block (506) is fixedly connected to the threaded rod (511), the bottoms of both sides of the connecting frame (301) are rotatably connected to the rotating frame (507), the bottom of the rotating frame (507) is rotatably connected to a threaded tube (508) sleeved on the outer side of the circumference of the threaded rod (511), and the threaded tube (508) is threadedly connected to the threaded rod (511).

7. The multi-purpose robotic arm base according to claim 6, characterized in that: A plurality of mounting grooves (503) are provided at one end of each of the plurality of support rods (502), and balls (504) roll in the mounting grooves (503).

8. The multi-purpose robotic arm base according to claim 6, characterized in that: One end of the threaded tube (508) is fixedly connected to a first nut (509), and the circumferential outer wall of the threaded rod (511) is threadedly connected to a second nut (510).

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