Material taking mechanical arm for wood production

Abstract

The material taking mechanical arm for wood production comprises a main body and two sliding connection boxes, the two sliding connection boxes are fixedly connected to the left side and the right side of the main body correspondingly, the material taking mechanical arm further comprises a material taking mechanism, the material taking mechanism is arranged in the two sliding connection boxes, and the material taking mechanism comprises two tooth columns; the two tooth columns are slidably connected to the interiors of the two sliding connection boxes correspondingly, and the sides, away from the main body, of the two tooth columns are fixedly connected with material taking frames correspondingly. After wood in the material taking frame is taken out through the feeding mechanism, in the process that the mechanical arm integrally drives the grabbing assembly to move, the material taking mechanism can repeat the steps, the wood is moved to the working area of the feeding mechanism in advance, the mode that the wood is moved to the working area of the feeding mechanism through workers is replaced, the labor force of the workers is reduced, and the working efficiency is improved. Workers do not need to get close to the working area of the feeding mechanism, so that the workers are prevented from being hurt in the operation process of the feeding mechanism, and the safety is improved.

Description

Technical Field

[0001] The invention relates to the technical field of robots, in particular to a material taking mechanical arm for wood production. Background Art

[0002] In recent years, robotic arm technology has made great progress in the industrial field. Robotic arms have the advantages of high precision, high speed, and high reliability, and can complete various tasks in complex environments. In traditional wood production, a large amount of manpower is invested in material handling operations. The handling, stacking, and processing of wood often rely on manual operations, which are not only labor-intensive but also inefficient. With the continuous expansion of the scale of wood production, the requirements for production efficiency and quality are getting higher and higher. The traditional manual material handling method can no longer meet the needs of industry development.

[0003] Generally, wood is stacked inside a storage device before use. In order to prevent the stacked wood from becoming loose and causing damage due to the wood colliding with the robotic arm because the robotic arm is too close to the wood pile, it is necessary to move the wood to the working area of ​​the robotic arm when processing the wood, and then use the robotic arm to automatically move the wood to the designated position for processing. However, generally, the robotic arm does not have a structure that can move wood from far away to the working area close to the robotic arm. Most of the time, the wood is moved directly to the working area of ​​the robotic arm by workers. However, this method not only increases the labor force of the workers, but also reduces production efficiency because the workers move the wood slowly and cannot keep up with the feeding speed of the robotic arm, and the automation performance is low. Summary of the invention

[0004] The purpose of the present invention is to provide a material taking mechanical arm for wood production to solve the related problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a material taking mechanical arm for wood production, comprising a main body and two sliding connection boxes, the two sliding connection boxes are respectively fixedly connected to the left and right sides of the main body, and further comprising:

[0006] The material picking mechanism is arranged inside the two sliding connection boxes. The material picking mechanism includes two gear columns. The two gear columns are respectively slidably connected inside the two sliding connection boxes. The sides of the two gear columns away from the main body are fixedly connected with the material picking frame.

[0007] Preferably, two supporting bases are fixedly connected to the bottom of the main body, and top blocks are fixedly connected to one end of the top of the two sliding connection boxes close to the material picking frame. A dual-axis motor is fixedly connected to the bottom of the main body, and both output ends of the dual-axis motor are rotatably connected to gears, which pass through the bottom of the sliding connection box.

[0008] Preferably, a feeding mechanism is provided on the top of the main body, and the feeding mechanism includes a mechanical arm as a whole, which is rotatably connected to the top of the main body, and one end of the mechanical arm as a whole away from the main body is rotatably connected to a mounting frame, and the bottom of the mounting frame is threadedly connected to a connecting frame by bolts, and the left and right sides of the connecting frame are fixedly connected to grabbing components.

[0009] Preferably, the material picking mechanism also includes two slide grooves, which are respectively opened at one end of the top of the gear column close to the material picking frame, and the front and back inner walls of the material picking frame are provided with lifting grooves. A moving block is slidably connected inside the slide groove, and the moving block is abutted against the top block. A tooth groove is set at the bottom of the gear column, and the tooth groove at the bottom of the gear column is meshed with the gear.

[0010] Preferably, a sinking mechanism is provided inside the material taking frame, and the sinking mechanism includes two groups of sliding blocks, each group of sliding blocks is slidably connected inside every two lifting slots, and a support frame is fixedly connected between each group of sliding blocks, and a movable bar hole is opened through the top of the support frame.

[0011] Preferably, a connecting bar is fixedly connected to the bottom of the support frame, and the connecting bar slides through the material picking frame. The two connecting bars are fixedly connected to the limiting frame on one side close to the main body. The left and right sides of the support frame are fixedly connected to extension frames, and the tops of the two extension frames are fixedly connected to lifting frames.

[0012] Preferably, one end of the lifting frame away from the extension frame is rotatably connected to a push bar, one end of the push bar away from the lifting frame is rotatably connected to the moving block, and two tension buffer springs are fixedly connected between the connecting bar and the material taking frame.

[0013] Preferably, a buffer mechanism is provided inside the movable bar hole, and the buffer mechanism includes two side limit plates, both of which are rotatably connected to the top of the material taking frame, and the two side limit plates are symmetrically distributed with the material taking frame as the center.

[0014] Preferably, the outer walls of the two side limit plates are fixedly connected to a buffer plate at one end close to the material picking frame, the two buffer plates are rotatably connected to the buffer plates at one end away from the side limit plates, the two movable frames are slidingly connected to the inside of the movable bar holes, and the two movable frames are fixedly connected to side buffer springs on the sides away from each other.

[0015] Compared with the prior art, the present invention provides a wood production material taking mechanical arm, which has the following

[0016] Beneficial effects:

[0017] 1. The present invention drives two gears to rotate through a dual-axis motor. The two gears respectively pass through the bottom of the two sliding connection boxes and mesh with the two gear posts, driving the two gear posts to move respectively inside the sliding connection box toward the bottom of the wood storage device, so that the positions of the two material-retrieving frames correspond to the outlet at the bottom of the wood storage device. By opening the outlet at the bottom of the wood storage device, a piece of wood slides into the inside of the material-retrieving frame, and then the dual-axis motor and the two gears control the two gear posts to move toward the direction of the main body, so that the wood inside the material-retrieving frame is moved to the working area of ​​the entire robot arm, and then the set program is input into the feeding mechanism in advance, so that the entire robot arm and the mounting frame control the grabbing group The component automatically grabs the wood in the two feeding frames and takes it to the processing device for processing. After the wood in the feeding frame is taken out by the feeding mechanism, the feeding mechanism will repeat the above steps in the process of the robot arm driving the grabbing component to move as a whole, and move the wood to the working area of ​​the feeding mechanism in advance, instead of having workers move the wood to the working area of ​​the feeding mechanism, thereby reducing the labor of workers, eliminating the need for workers to approach the working area of ​​the feeding mechanism, avoiding injuries to workers during the operation of the feeding mechanism, improving safety, and avoiding the workers' inability to keep up with the feeding speed of the feeding mechanism due to the slowness of moving the wood, thereby improving production efficiency and automation performance.

[0018] The two buffer plates are connected to each other by the rotation of the bottom of the buffer plates and the movable frame, so that the two movable frames are pushed to slide relatively in the movable bar holes, and the buffer springs on the opposite sides are squeezed, so that the gravity generated by the fallen wood can be buffered, and the phenomenon that the gravity generated by the wood directly falling to the bottom of the connecting strip for a long time and causing the bottom of the connecting strip to be deformed is avoided, and the service life of the connecting strip is improved. When the two buffer plates slide relatively in the movable bar holes through the two movable frames respectively, the support frame can be pushed to slide downward in the lifting groove through the two sliding blocks, so that the connecting strip passes through the feeding frame and slides downward, and at the same time, the tension buffer spring between the inner wall of the bottom of the connecting strip and the bottom of the feeding frame is stretched, which can not only make the wood better enter the interior of the feeding frame and avoid the phenomenon that the wood slides to the outside during the movement of the wood, but also improve the buffering effect of buffering the gravity generated when the wood enters the interior of the feeding frame.

[0019] When the wood is not in the two material picking frames, the height of the limiting frame is greater than the height of the material picking frames, so that the wood can be limited when it falls into the material picking frames, thereby preventing the wood from rolling out of the material picking frames. When the two gear columns drive the wood in the two material picking frames to move to the working area of ​​the feeding mechanism, the moving block will abut against the top block in advance, and the sliding connection between the moving block and the slide groove will make the moving block stop following the movement of the gear column. As the gear column continues to drive the material picking frame to move, the material picking frame will gradually approach the moving block, and the two ends of the pushing bar are respectively connected to the moving block and the lifting frame for rotation, and the lifting frame will move upward through the lifting frame, thereby driving the supporting frame to move upward through the two sliding blocks inside the two lifting slots through the lifting frame and the extending frame, so that the wood on the supporting frame inside the material picking frame can be gradually pushed out of the material picking frame, thereby facilitating the grabbing of the wood by the grabbing assembly, avoiding that the wood height is too low or embedded too deeply in the material picking frame to affect the feeding mechanism to grab the wood, thereby improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view of the present invention;

[0021] Figure 2 It is a bottom view of the present invention;

[0022] Figure 3 It is a schematic diagram of the main structure of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the feeding mechanism of the present invention;

[0024] Figure 5 It is a structural schematic diagram of the material taking mechanism of the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the sinking mechanism of the present invention;

[0026] Figure 7 This is a schematic diagram of the coordination between the material taking mechanism and the sinking mechanism of the present invention;

[0027] Figure 8 for Figure 7 Enlarged view of point A in the middle.

[0028] In the figure: 1. main body; 101. support base; 102. sliding connection box; 103. top block; 104. dual-axis motor; 105. gear; 2. feeding mechanism; 201. robot arm as a whole; 202. mounting frame; 203. connecting frame; 204. grab assembly; 3. material picking mechanism; 301. tooth column; 302. material picking frame; 303. slide slot; 304. lifting slot; 305. moving block; 4. sinking mechanism; 401. sliding block; 402. supporting frame; 403. movable bar hole; 404. connecting bar; 405. extension frame; 406. lifting frame; 407. push bar; 408. stretching buffer spring; 409. limit frame; 5. buffer mechanism; 501. side limit plate; 502. buffer plate; 503. movable frame; 504. side buffer spring. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0030] Example 1

[0031] like Figure 1-Figure 8 As shown, it includes a main body 1 and two sliding connection boxes 102, the two sliding connection boxes 102 are fixedly connected to the left and right sides of the main body 1 respectively, and also includes:

[0032] The material picking mechanism 3 is arranged inside the two sliding connection boxes 102. The material picking mechanism 3 includes two gear columns 301, and the two gear columns 301 are respectively slidably connected inside the two sliding connection boxes 102. The two gear columns 301 are fixedly connected with the material picking frame 302 on one side away from the main body 1. The material picking mechanism 3 also includes two slide grooves 303, and the two slide grooves 303 are respectively opened at the top of the gear column 301 and one end of the material picking frame 302. The front and back inner walls of the material picking frame 302 are both provided with lifting grooves 304. The slide grooves 303 are slidably connected with a moving block 305, and the moving block 305 is against the top block 103. The bottom of the gear column 301 is provided with a tooth groove, and the tooth groove at the bottom of the gear column 301 is meshed with the gear 105.

[0033] Two supporting bases 101 are fixedly connected to the bottom of the main body 1, and one end of the top of the two sliding connection boxes 102 close to the material-retrieving frame 302 is fixedly connected to a top block 103. A dual-axis motor 104 is fixedly connected to the bottom of the main body 1, and two output ends of the dual-axis motor 104 are rotatably connected to gears 105. The gears 105 pass through the bottom of the sliding connection box 102, and the dual-axis motor 104 drives the two gears 105 to rotate. The two gears 105 pass through the bottom of the two sliding connection boxes 102 and mesh with the two gear columns 301, driving the two gear columns 301 to move toward the bottom of the wood storage device in the sliding connection box 102, so that the positions of the two material-retrieving frames 302 correspond to the outlet at the bottom of the wood storage device.

[0034] The main body 1 is provided with a feeding mechanism 2 at the top, and the feeding mechanism 2 includes a mechanical arm 201, which is rotatably connected to the top of the main body 1, and the end of the mechanical arm 201 away from the main body 1 is rotatably connected to a mounting frame 202, and the bottom of the mounting frame 202 is threadedly connected to a connecting frame 203 by bolts, and the left and right sides of the connecting frame 203 are fixedly connected to a grabbing assembly 204. By opening the outlet at the bottom of the wood storage device, a piece of wood slides into the inside of the material-retrieving frame 302, and then the two gear columns 301 are controlled by the dual-axis motor 104 and the two gears 105 to move toward the main body. 1, thereby moving the wood inside the material picking frame 302 to the working area of ​​the robot arm 201, and then inputting the set program into the feeding mechanism 2 in advance, so that the robot arm 201 and the mounting frame 202 control the grabbing assembly 204 to automatically grab the wood inside the two material picking frames 302 to the processing device for processing, and after the wood inside the material picking frame 302 is taken out by the feeding mechanism 2, in the process of the robot arm 201 driving the grabbing assembly 204 to move, the material picking mechanism 3 will repeat the above steps to move the wood to the working area of ​​the feeding mechanism 2 in advance;

[0035] The material taking frame 302 is provided with a sinking mechanism 4 inside, and the sinking mechanism 4 includes two sets of sliding blocks 401, each set of sliding blocks 401 is slidably connected inside each two lifting slots 304, and a support frame 402 is fixedly connected between each set of sliding blocks 401, and a movable bar hole 403 is opened through the top of the support frame 402, and a connecting bar 404 is fixedly connected to the bottom of the support frame 402, and the connecting bar 404 slides through the material taking frame 302, and the two connecting bars 404 are fixedly connected to the limiting frame 409 on one side close to the main body 1, and the left side of the support frame 402 The right and left sides are fixedly connected with extension frames 405, and the tops of the two extension frames 405 are fixedly connected with lifting frames 406. The end of the lifting frame 406 away from the extension frame 405 is rotatably connected with a push bar 407, and the end of the push bar 407 away from the lifting frame 406 is rotatably connected to the moving block 305. Two tension buffer springs 408 are fixedly connected between the connecting bar 404 and the material taking frame 302. When the two buffer plates 502 slide relatively inside the movable bar hole 403 through the two movable frames 503 respectively, the support frame 402 can also be pushed through the two movable frames 503. The sliding block 401 slides downward inside the lifting groove 304, so that the connecting strip 404 penetrates the material picking frame 302 and slides downward, and at the same time, the tension buffer spring 408 between the bottom inner wall of the connecting strip 404 and the bottom of the material picking frame 302 is stretched, which not only allows the wood to enter the interior of the material picking frame 302 better and avoids the phenomenon of the wood sliding to the outside during the movement of the wood, but also improves the buffering effect of buffering the gravity generated when the wood enters the interior of the material picking frame 302. The moving block 305 is rotatably connected to the lifting frame 406, and will move upward through the lifting frame 406, thereby driving the support frame 402 to move upward inside the two lifting slots 304 through the lifting frame 406 and the extension frame 405 through the two sliding blocks 401, so that the wood on the support frame 402 inside the material picking frame 302 can be gradually pushed out of the material picking frame 302, so that the wood can be grabbed by the grabbing assembly 204, and the wood can be prevented from being too low or embedded too deeply into the material picking frame 302, which affects the feeding mechanism 2 from grabbing the wood;

[0036] A buffer mechanism 5 is arranged inside the movable bar hole 403, and the buffer mechanism 5 includes two side limit plates 501, and the two side limit plates 501 are rotatably connected to the top of the material picking frame 302, and the two side limit plates 501 are symmetrically distributed with the material picking frame 302 as the center, and the ends of the outer walls of the two side limit plates 501 close to the material picking frame 302 are fixedly connected to the buffer plates 502, and the ends of the two buffer plates 502 away from the side limit plates 501 are rotatably connected to the buffer plates 502, and the two movable frames 503 are slidably connected to the inside of the movable bar hole 403, and the two movable frames 503 are connected to each other. The sides away from each other are fixedly connected with side buffer springs 504. When the wood enters the interior of the material-removing frame 302, it will first contact the two buffer plates 502. The weight of the wood itself applies downward pressure to the two buffer plates 502, pushing the two buffer plates 502 to rotate relative to each other on the top of the material-removing frame 302. The bottom of the buffer plate 502 is connected to the movable frame 503 through rotation, pushing the two movable frames 503 to slide relative to each other in the movable bar hole 403, and squeezing the side buffer springs 504, so as to buffer the gravity generated by the falling wood.

[0037] Working principle: The two gears 105 are driven to rotate by the dual-axis motor 104, and the two gears 105 respectively pass through the bottom of the two sliding connection boxes 102 and mesh with the two gear posts 301, driving the two gear posts 301 to move to the bottom of the wood storage device inside the sliding connection box 102, so that the positions of the two material-retrieving frames 302 correspond to the outlet at the bottom of the wood storage device. By opening the outlet at the bottom of the wood storage device, a piece of wood slides into the interior of the material-retrieving frame 302, and then the dual-axis motor 104 and the two gears 105 control the two gear posts 301 to move toward the direction of the main body 1, thereby the material-retrieving frame 302 is opened. 02 is moved to the working area of ​​the robot arm 201, and then the set program is input into the feeding mechanism 2 in advance, so that the robot arm 201 and the mounting frame 202 control the grabbing component 204 to automatically grab the wood in the two picking frames 302 and put it on the processing device for processing. After the wood in the picking frame 302 is taken out by the feeding mechanism 2, in the process of the robot arm 201 driving the grabbing component 204 to move, the picking mechanism 3 will repeat the above steps to move the wood to the working area of ​​the feeding mechanism 2 in advance, instead of having workers move the wood to the working area of ​​the feeding mechanism 2.

[0038] Example 2

[0039] like Figure 1-Figure 8As shown, the working principle is: when the wood enters the inside of the material-retrieving frame 302, it will first contact the two buffer plates 502, and the weight of the wood itself will apply downward pressure to the two buffer plates 502, pushing the two buffer plates 502 to rotate relative to each other at the top of the material-retrieving frame 302, and the bottom of the buffer plate 502 is connected to the movable frame 503 by rotation, pushing the two movable frames 503 to slide relatively inside the movable bar hole 403, and squeezing the buffer spring 504 on the opposite side, so as to buffer the gravity generated by the fallen wood, avoid the phenomenon that the bottom of the connecting bar 404 is deformed due to the gravity generated by the wood falling directly to the bottom of the connecting bar 404 for a long time, and improve the service life of the connecting bar 404;

[0040] When the two buffer plates 502 slide relatively in the movable bar holes 403 through the two movable frames 503 respectively, the support frame 402 can also be pushed to slide downward in the lifting slot 304 through the two sliding blocks 401, so that the connecting strip 404 passes through the material picking frame 302 and slides downward, and at the same time, the tension buffer spring 408 between the inner wall at the bottom of the connecting strip 404 and the bottom of the material picking frame 302 is stretched, which can not only make the wood better enter the interior of the material picking frame 302 and avoid the phenomenon of the wood sliding to the outside during the movement of the wood, but also improve the buffering effect of buffering the gravity generated when the wood enters the material picking frame 302. When the wood does not enter the two material picking frames 302, the height of the limiting frame 409 is greater than the height of the material picking frame 302, and when the wood falls into the interior of the material picking frame 302, the wood can be limited to avoid the wood rolling to the outside of the material picking frame 302.

[0041] When the two toothed posts 301 drive the wood inside the two material taking frames 302 to move to the working area of ​​the feeding mechanism 2, the moving block 305 will abut against the top block 103 in advance, and the moving block 305 will stop following the movement of the toothed posts 301 through the sliding connection between the moving block 305 and the slide slot 303. As the toothed posts 301 continue to drive the material taking frames 302 to move, the material taking frames 302 will gradually approach the moving block 305, and the two ends of the push bar 407 will respectively connect with the moving block 305 and the lifting frame 406. The rotating connection will move upward through the lifting frame 406, thereby driving the support frame 402 to move upward inside the two lifting slots 304 through the two sliding blocks 401 through the lifting frame 406 and the extension frame 405, so that the wood on the support frame 402 inside the material picking frame 302 can be gradually pushed out of the material picking frame 302, making it easier to grab the wood through the grabbing component 204, and avoiding the wood height being too low or embedded too deeply into the material picking frame 302 to affect the feeding mechanism 2 from grabbing the wood.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A material-retrieving mechanical arm for wood production, comprising a main body (1) and two sliding connection boxes (102), wherein the two sliding connection boxes (102) are respectively fixedly connected to the left and right sides of the main body (1), characterized in that: Also includes: A material picking mechanism (3), the material picking mechanism (3) is arranged inside two sliding connection boxes (102), the material picking mechanism (3) comprises two tooth columns (301), the two tooth columns (301) are respectively slidably connected inside the two sliding connection boxes (102), and the two sides of the two tooth columns (301) away from the main body (1) are fixedly connected to a material picking frame (302).

2. A wood production material taking mechanical arm according to claim 1, characterized in that: The bottom of the main body (1) is fixedly connected to two supporting bases (101); the top ends of the two sliding connection boxes (102) close to the material taking frame (302) are fixedly connected to top blocks (103); the bottom of the main body (1) is fixedly connected to a dual-axis motor (104); the two output ends of the dual-axis motor (104) are rotatably connected to gears (105); and the gears (105) pass through the bottom of the sliding connection box (102).

3. A wood production material taking mechanical arm according to claim 2, characterized in that: A feeding mechanism (2) is arranged on the top of the main body (1), and the feeding mechanism (2) comprises a mechanical arm as a whole (201), the mechanical arm as a whole (201) is rotatably connected to the top of the main body (1), one end of the mechanical arm as a whole (201) away from the main body (1) is rotatably connected to a mounting frame (202), the bottom of the mounting frame (202) is threadedly connected to a connecting frame (203) via bolts, and the left and right sides of the connecting frame (203) are fixedly connected to grabbing components (204).

4. A wood production material taking mechanical arm according to claim 3, characterized in that: The material picking mechanism (3) further comprises two slide grooves (303), the two slide grooves (303) are respectively arranged at one end of the top of the tooth column (301) close to the material picking frame (302), the front and back inner walls of the material picking frame (302) are both provided with lifting grooves (304), a moving block (305) is slidably connected inside the slide groove (303), the moving block (305) is abutted against the top block (103), a tooth groove is arranged at the bottom of the tooth column (301), and the tooth groove at the bottom of the tooth column (301) is meshed with the gear (105).

5. The wood production material taking mechanical arm according to claim 4, characterized in that: A sinking mechanism (4) is arranged inside the material taking frame (302), and the sinking mechanism (4) includes two groups of sliding blocks (401), each group of the sliding blocks (401) is slidably connected inside each two lifting slots (304), and a support frame (402) is fixedly connected between each group of the sliding blocks (401), and a movable bar hole (403) is opened through the top of the support frame (402).

6. A wood production material taking mechanical arm according to claim 5, characterized in that: The bottom of the support frame (402) is fixedly connected with a connecting strip (404), and the connecting strip (404) slides through the material taking frame (302). The two connecting strips (404) are fixedly connected with a limiting frame (409) on one side close to the main body (1). The left and right sides of the support frame (402) are fixedly connected with extension frames (405), and the tops of the two extension frames (405) are fixedly connected with a lifting frame (406).

7. A wood production material taking mechanical arm according to claim 6, characterized in that: One end of the lifting frame (406) away from the extension frame (405) is rotatably connected to a push bar (407), and one end of the push bar (407) away from the lifting frame (406) is rotatably connected to the moving block (305). Two tension buffer springs (408) are fixedly connected between the connecting bar (404) and the material taking frame (302).

8. The wood production material taking mechanical arm according to claim 7, characterized in that: A buffer mechanism (5) is arranged inside the movable bar hole (403), and the buffer mechanism (5) includes two side limit plates (501). The two side limit plates (501) are both rotatably connected to the top of the material taking frame (302), and the two side limit plates (501) are symmetrically distributed with the material taking frame (302) as the center.

9. A wood production material taking mechanical arm according to claim 8, characterized in that: The ends of the outer walls of the two side limit plates (501) close to the material taking frame (302) are fixedly connected to the buffer plate (502), and the ends of the two buffer plates (502) away from the side limit plates (501) are rotatably connected to the buffer plate (502), and the two movable frames (503) are slidably connected to the inside of the movable bar hole (403), and the sides of the two movable frames (503) away from each other are fixedly connected to the side buffer spring (504).

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