Auxiliary positioning equipment for automatic punching of balsa wood plate

Abstract

The invention relates to the technical field of wood processing, in particular to auxiliary positioning equipment for automatic punching of balsa wood boards. The auxiliary positioning equipment for automatic punching of the Basa wood board comprises a supporting seat, and a rotary indicating rotating seat is arranged at the top of the supporting seat; the top of the rotating seat is provided with the adjusting mechanism used for quickly adjusting the placing angle of the Basa wood plate; and the positioning mechanism for aligning and positioning the punching position of the balsa wood plate is arranged on one side of the supporting seat. According to the device, the device controls an extrusion block to be in butt joint with a shallow groove of a balsa wood plate, the position of the balsa wood plate is determined by detecting the position of the extrusion block in a limiting shell, then the height of a threaded rod relative to a rotating seat is controlled through a motor and a rotating pipe, and the effect of controlling the rotating and swinging angle of a supporting table is achieved; in this way, the positions of the balsa wood boards in different shapes can be conveniently adjusted and controlled, and the purpose of auxiliary positioning is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of wood processing, and in particular to an auxiliary positioning device for automatic punching of balsa wood panels. Background Art

[0002] Balsa is one of the fastest growing trees and the lightest wood in the world. Although its wood is light in texture, its structure is very strong and not easy to deform. It is widely used in aviation, navigation, sound insulation, heat insulation, interior decoration and other aspects. In the field of wind power, balsa is often used as the core material of wind turbine blades.

[0003] During the processing of balsa wood core material used for wind turbine blades, there are steps of shallow grooving and punching the balsa wood board. Shallow grooving is to cut several shallow grooves on at least one surface of the core material, while punching is to drill through holes through the upper and lower surfaces of the core material at the intersection of several shallow grooves.

[0004] There are many automatic punching machines on the market, but the positioning of the punching position is relatively simple. In addition, the number of balsa wood boards used in wind turbine blades is large, the specifications are diverse, and there are many types of balsa wood boards with different shapes. The through holes on the boards need to be at the intersection of shallow grooves and must be within the grooves, which is a high requirement. Conventional positioning equipment is difficult to meet the requirements.

[0005] Therefore, it is necessary to design an auxiliary positioning device for automatic punching of balsa wood panels. Summary of the Invention

[0006] The present invention aims to overcome the shortcomings of commercially available automatic drilling equipment, which is relatively simple in locating the drilling positions. However, the balsa wood panels used in wind turbine blades have a wide variety of shapes, and the through holes in the panels must be located at the intersection of shallow grooves and within the grooves, creating high requirements that conventional positioning equipment cannot meet. The present invention aims to provide an auxiliary positioning device for automatic drilling of balsa wood panels.

[0007] The technical solution is: an auxiliary positioning device for automatic punching of balsa wood boards, including: a support base and a rotating base, the rotating base is schematically shown on the top of the support base; an adjustment mechanism, the top of the rotating base is provided with an adjustment mechanism for quickly adjusting the placement angle of the balsa wood board; a positioning mechanism, a positioning mechanism is provided on one side of the support base for aligning and positioning the punching position of the balsa wood board.

[0008] As an improvement of the above scheme, the adjustment mechanism specifically also includes: a rotating tube, four rotating tubes are rotatably provided in a horizontal ring at even intervals on the top of the rotating seat; a threaded rod, a threaded rod is threadedly provided inside the rotating tube; a slider, a slider is hingedly provided on the top of the threaded rod; a support platform and a slide rail, four slide rails are evenly spaced in a horizontal ring at the bottom of the support platform, and the support platform is slidably matched with the four sliders on the rotating seat through the four slide rails and is arranged on the top of the rotating seat; a first gear is provided in the middle part of the outer side of the rotating tube; a motor is provided at the top of the rotating tube near each rotating tube; a second gear, the output shaft of the motor is connected to the second gear through a coupling, and the second gears are meshed with the adjacent first gear.

[0009] As an improvement of the above scheme, the positioning mechanism specifically also includes: a sliding seat, a mounting groove is opened on one side of the support seat, a sliding seat is slidably provided in the mounting groove, and the sliding seat is fixed to the support seat by screws; a mounting frame, a mounting frame is provided on the top of the end of the sliding seat that does not contact the support seat by bolt connection; a limit rod, a vertical downward limit rod is provided on the inner side of the top of the mounting frame; a first electric push rod is provided on the inner side of the top of the mounting frame near the limit rod; a mounting plate, a mounting plate is slidably provided at the lower part of the limit rod, the limit rod passes through the mounting plate, and the mounting plate is connected to the telescopic rod of the first electric push rod; a limit shell, a limit shell with an opening facing the rotating seat is provided at the bottom of the limit rod; an extrusion block, an extrusion block is slidably provided on the inner side of the limit shell; a first elastic member, the first elastic member is connected between the limit shell and the extrusion block; a position sensor, mutually inductive position sensors are provided between the bottom of the limit shell and the bottom of the extrusion block, and the position sensor is electrically connected to the external system.

[0010] As an improvement to the above scheme, it also includes a rotating mechanism, which specifically includes: a second electric push rod, a horizontal second electric push rod is provided on the top of the support seat; a sliding rod, a sliding rod is slidably embedded in the top of the support seat, and the sliding rod is connected to the telescopic rod of the second electric push rod; a square plate, a square plate is provided at the bottom of the rotating seat, a sliding groove is opened at the bottom of the square plate, a cylinder is provided at the end of the sliding rod away from the second electric push rod, and the cylinder of the sliding rod slides in the sliding groove; a rotating plate, the four corner positions of the square plate located on the inner side of the sliding groove are all rotatably provided with rotating plates; a torsion spring, and a torsion spring is connected to the rotating connection position between the rotating plate and the square plate.

[0011] As an improvement to the above scheme, it also includes an auxiliary mechanism, which specifically includes: a fixed column, two fixed columns are provided at the bottom of the mounting plate; a sliding column, a sliding column is provided in a sliding manner on the inner side of the fixed column; a pressure sensor, a pressure sensor is provided on the top of the inner side of the fixed column; a second elastic member, a second elastic member is provided between the pressure sensor and the sliding column; a rolling ball, a rolling ball is rotatably provided at the bottom of the sliding column.

[0012] As an improvement to the above scheme, it also includes a fixing mechanism, which specifically includes: a first extension plate and a second extension plate, the first extension plate and the second extension plate are respectively provided with a sliding through arrangement on both sides of the support platform, and the first extension plate and the second extension plate are provided with two limiting strips passing through the middle of the support platform on one side close to the support platform; a first fixed seat, two first fixed seats are provided at the positions of the limiting strips at the bottom of the first extension plate and the second extension plate; a screw rod, a screw rod is rotatably provided between the two first fixed seats at the bottom of the first extension plate and the second extension plate located at the same limiting strip position; a second fixed seat, a second fixed seat is provided at the position of the limiting strips of the first extension plate and the second extension plate at the bottom of the support platform, and the screw rod is threadedly engaged with the second fixed seat; a pulley group, a pulley group is wound around the two screw rods on the first extension plate and the two screw rods on the second extension plate.

[0013] As an improvement to the above solution, it further includes: an extrusion belt, and an extrusion belt is provided on the inner side of the top of the first extension plate and the second extension plate.

[0014] The present invention has the following advantages: 1. In the present invention, the device controls the extrusion block to dock with the shallow groove of the balsa wood board, determines the position of the balsa wood board by detecting the position of the extrusion block in the limit shell, and then controls the height of the threaded rod relative to the rotating seat through the motor and the rotating tube to achieve the effect of controlling the rotation and swinging angle of the support platform, thereby facilitating the adjustment and control of the position of balsa wood boards of different shapes, thereby achieving the purpose of auxiliary positioning.

[0015] 2. When testing a batch of balsa wood boards with undulating bottom shapes, the staff first uses a pressure sensor to record the test data of the boards in a standard state. Then, when punching and positioning other balsa wood boards of the same specifications, by comparing the values of the two detected pressure sensors with the recorded values, it is easier to find the vertical position of the shallow groove of the board and the position where the extrusion block is completely inserted into the shallow groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the adjustment mechanism of the present invention.

[0019] Figure 4 It is a schematic cross-sectional view of the three-dimensional structure of the adjustment mechanism of the present invention.

[0020] Figure 5 It is a schematic cross-sectional view of part of the three-dimensional structure of the adjustment mechanism of the present invention.

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the positioning mechanism of the present invention.

[0022] Figure 7 It is an exploded view of the three-dimensional structure of the positioning mechanism of the present invention.

[0023] Figure 8 It is a schematic cross-sectional view of part of the three-dimensional structure of the positioning mechanism of the present invention.

[0024] Figure 9 It is a schematic diagram of the three-dimensional structure of the rotating mechanism of the present invention.

[0025] Figure 10 It is a partial three-dimensional structural diagram of the rotating mechanism of the present invention.

[0026] Figure 11 It is an enlarged view of point A of the present invention.

[0027] Figure 12 It is a schematic diagram of the three-dimensional structure of the auxiliary mechanism of the present invention.

[0028] Figure 13 It is a schematic cross-sectional view of part of the three-dimensional structure of the auxiliary mechanism of the present invention.

[0029] Figure 14 It is a schematic diagram of the three-dimensional structure of the fixing mechanism of the present invention.

[0030] Figure 15 It is an exploded view of the three-dimensional structure of the fixing mechanism of the present invention.

[0031] The reference numbers in the figure are: 1-support seat, 2-rotating seat, 3-adjusting mechanism, 301-rotating tube, 302-threaded rod, 303-slider, 304-support platform, 305-slide rail, 306-first gear, 307-motor, 308-second gear, 4-positioning mechanism, 401-sliding seat, 402-mounting frame, 403-limiting rod, 404-first electric push rod, 405-mounting plate, 406-limiting shell, 407-extrusion block, 408-first elastic member, 409-position sensor, 5 -Rotation mechanism, 501-Second electric push rod, 502-Sliding rod, 503-Square plate, 504-Slide groove, 505-Rotation plate, 506-Torsion spring, 6-Auxiliary mechanism, 601-Fixed column, 602-Sliding column, 603-Pressure sensor, 604-Second elastic member, 605-Rolling ball, 7-Fixed mechanism, 701-First extension plate, 702-Second extension plate, 703-First fixed seat, 704-Screw rod, 705-Second fixed seat, 706-Pulley assembly, 8-Extrusion belt. DETAILED DESCRIPTION

[0032] The above scheme is further described below with reference to specific examples. It should be understood that these examples are intended to illustrate the present application and are not intended to limit the scope of the present application. The implementation conditions used in the examples can be further adjusted according to the conditions of the specific manufacturer. The implementation conditions not specified are generally those used in routine experiments.

[0033] Example 1 like Figures 1 to 8 As shown, the present invention provides an auxiliary positioning device for automatic punching of balsa wood panels, which specifically includes a support base 1, a rotating base 2, an adjustment mechanism 3 and a positioning mechanism 4; Among them, the top of the support base 1 is rotatable to indicate the rotating base 2, and the adjustment mechanism 3 is set on the top of the rotating base 2 for quickly adjusting the placement angle of the balsa wood board; Among them, the positioning mechanism 4 is arranged on one side of the support base 1 and is used to align and position the punching positions of the balsa wood board.

[0034] The adjustment mechanism 3 specifically includes a rotating tube 301, a threaded rod 302, a slider 303, a support platform 304, a slide rail 305, a first gear 306, a motor 307 and a second gear 308; Among them, four rotating tubes 301 are rotatably provided in a horizontal ring at the top of the rotating base 2, and threaded rods 302 are threaded in the rotating tubes 301. Sliders 303 are hinged on the tops of the threaded rods 302. The slides 303 can rotate vertically relative to the threaded rods 302. Four slide rails 305 are evenly spaced in a horizontal ring at the bottom of the support platform 304. The slides 303 slide in the corresponding slide rails 305, and the slide rails 305 limit the horizontal direction of the slides 303 to prevent the threaded rods 302 from rotating together with the rotating tubes 301. The support platform 304 is arranged on the top of the rotating base 2 through the four slide rails 305 to slide with the four slides 303 on the rotating base 2, so as to realize multi-angle rotation and swing of the support platform 304. Among them, a first gear 306 is provided in the middle part of the outer side of the rotating tube 301, and a motor 307 is provided at the top of the rotating tube 301 near each rotating tube 301. The output shaft of the motor 307 is connected to the second gear 308 through a coupling. The second gear 308 is engaged with the adjacent first gear 306 for quickly controlling the sequential rotation of the rotating tube 301.

[0035] The positioning mechanism 4 specifically includes a sliding seat 401, a mounting frame 402, a limiting rod 403, a first electric push rod 404, a mounting plate 405, a limiting shell 406, an extrusion block 407, a first elastic member 408 and a position sensor 409; Among them, a mounting groove is opened on one side of the support base 1, and a sliding seat 401 is slidably provided in the mounting groove. The sliding seat 401 is fixed to the support base 1 by screws. By controlling the extension distance of the sliding seat 401 relative to the support base 1, the distance between the mounting frame 402 and the extrusion block 407 and the balsa wood board is controlled, which facilitates the positioning of balsa wood boards of different sizes. Among them, a mounting bracket 402 is provided on the top of the end of the sliding seat 401 that is not in contact with the support seat 1 by means of a bolt connection, and a vertically downward limiting rod 403 is provided on the inner side of the top of the mounting bracket 402 to guide and limit the mounting plate 405, and a vertically downward first electric push rod 404 is provided on the inner side of the top of the mounting bracket 402 near the limiting rod 403, and a mounting plate 405 is slidably provided at the lower part of the limiting rod 403, which penetrates the mounting plate 405, and the mounting plate 405 is connected to the telescopic rod of the first electric push rod 404, and a limiting shell 406 with an opening facing the rotating seat 2 is provided at the bottom of the limiting rod 403, and an extrusion block 407 is slidably provided on the inner side of the limiting shell 406, and a first elastic member 408 is connected between the limiting shell 406 and the extrusion block 407, and mutually inductive position sensors 409 are provided between the bottom of the limiting shell 406 and the bottom of the extrusion block 407, and the position sensor 409 is electrically connected to the external system.

[0036] For example, before use, the device is connected to the automatic punching equipment. When the balsa wood board needs to be punched, the staff places the balsa wood board at a suitable position on the top of the support platform 304 so that the shallow groove of the balsa wood board faces the extrusion block 407. In the initial state, the first electric push rod 404 is in a state of tightening the telescopic rod. After the balsa wood board is placed, the first electric push rod 404 is started. The first electric push rod 404 drives the mounting plate 405 and the limit shell 406 to move downward through the telescopic rod, and the extrusion block 407 gradually contacts the balsa wood board. The end of the extrusion block 407 close to the balsa wood board is in the shape of a circular plate, and the width of the circular plate is slightly smaller than the width of the shallow groove of the board. When the extrusion block 407 When in contact with the balsa wood board, if the round plate end of the extrusion block 407 fails to fit into the shallow groove of the board, the extrusion block 407 will be squeezed into the limiting shell 406, the first elastic member 408 will be compressed, and the extrusion block 407 and the corresponding position sensors 409 on the limiting shell 406 will be out of corresponding state. Then, the external system will prompt the staff, and the staff can adjust the position of the fragments of the balsa wood board until the round plate end of the extrusion block 407 fits into the shallow groove of the board, and the extrusion block 407 and the corresponding position sensors 409 on the limiting shell 406 resume corresponding state. At this time, the shallow grooves of the balsa wood board are all positioned to a calculable position, and the system of the automatic punching equipment can be adjusted according to the position of the extrusion block 407. 7 is positioned to other shallow groove positions. Since the shallow grooves of the board are staggered on the surface of the core material in a rectangular grid, when the horizontal shallow grooves are positioned, the first electric push rod 404 is controlled to drive the mounting plate 405 to return to the initial position, and then the support table 304 is driven to rotate horizontally 90° through the rotating seat 2, and the above positioning operation is repeated. Finally, the shallow groove positions of the board are all in the calculable position, and then the automatic punching operation is performed. At the same time, if the bottom shape of the balsa wood board is undulating, the shallow groove of the board cannot be kept vertical when placed on the support table 304, which causes the round plate end of the extrusion block 407 to fail to be stuck in the shallow groove of the board. The staff can rotate The four motors 307 and the second gear 308 on the base 2 control the forward and reverse rotation of the first gear 306 and the rotating tube 301, and the threaded rod 302 threadedly connected to the rotating tube 301 then moves up and down in the rotating tube 301. Since the bottom of the support platform 304 is connected to the threaded rod 302 through the slide rail 305 and the slider 303, the up and down movement of the four threaded rods 302 then drives the support platform 304 to rotate and swing online, which makes it convenient for the staff to control the position adjustment of the balsa wood board placed on the support platform 304, so that the shallow groove of the balsa wood board remains vertical, and ensures that the round plate end of the extrusion block 407 is stuck in the shallow groove of the board, completing the positioning operation, and then performing the automatic punching operation.

[0037] Example 2 like Figures 9 to 11As shown, on the basis of Example 1, it specifically includes a rotating mechanism 5, which specifically includes a second electric push rod 501, a sliding rod 502, a square plate 503, a rotating plate 505 and a torsion spring 506. A horizontal second electric push rod 501 is provided on the top of the support seat 1, and a sliding rod 502 is slidingly embedded in the top of the support seat 1. The sliding rod 502 is connected to the telescopic rod of the second electric push rod 501. A square plate 503 is provided at the bottom of the rotating seat 2, and a sliding groove 504 is opened at the bottom of the square plate 503. A cylinder is provided at one end of the sliding rod 502 away from the second electric push rod 501, and the cylinder of the sliding rod 502 slides in the sliding groove 504. The four corner positions of the square plate 503 located inside the sliding groove 504 are all rotatably provided with rotating plates 505, and the rotating connection positions of the rotating plate 505 and the square plate 503 are all connected with torsion springs 506.

[0038] When the balsa wood board is too large to be rotated manually, the staff can drive the sliding rod 502 to move back and forth horizontally by controlling the telescopic rod of the second electric push rod 501. In the initial state, the telescopic rod of the second electric push rod 501 is in a retracted state. When rotation is required, the second electric push rod 501 drives the sliding rod 502 to move toward the rotating seat 2 first, and then returns to the initial position. During this process, the cylinder of the sliding rod 502 moves in the slide groove 504 and first contacts the rotating plate 505, and the rotating plate 505 is limited by the slide groove 504 of the square plate 503, so that the sliding rod 502 is rotated. The cylinder of rod 502 squeezes rotating plate 505, and then the square plate 503 drives the rotating seat 2 to rotate under the action of rotating plate 505 and the inclined surface of slide groove 504. When it rotates to a state where slide groove 504 is perpendicular to sliding rod 502, sliding rod 502 is driven by the second electric push rod 501 to return to its initial position. The cylinder of sliding rod 502 cooperates with slide groove 504 again to control the square plate 503 to drive the rotating seat 2 to continue rotating, and finally achieves the purpose of the second electric push rod 501 to extend and retract once to drive the rotating seat 2 to rotate 90° relative to the support seat 1, which is convenient for staff to operate and ensures the accuracy of the rotation angle.

[0039] like Figure 12 and Figure 13 As shown, on the basis of Example 1, an auxiliary mechanism 6 is specifically included, and the auxiliary mechanism 6 specifically includes a fixed column 601, a sliding column 602, a pressure sensor 603, a second elastic member 604 and a rolling ball 605. Two fixed columns 601 are provided at the bottom of the mounting plate 405, and sliding columns 602 are slidingly provided on the inner sides of the fixed columns 601. Pressure sensors 603 are provided on the tops of the inner sides of the fixed columns 601. Second elastic members 604 are provided between the pressure sensors 603 and the sliding columns 602, and rolling balls 605 are rotatably provided on the bottoms of the sliding columns 602.

[0040] When inspecting balsa wood boards with undulating bottom shapes, the staff can first manually adjust a board. When the first electric push rod 404 drives the mounting plate 405 downward, the fixed column 601 and the sliding column 602 are driven downward together, and the ball 605 contacts and squeezes the board. The sliding column 602 slides in the fixed column 601, and the second elastic member 604 is compressed. The pressure sensor 603 detects the pressure at this time and transmits the data to the external control system. When the extrusion block 407 completes the operation of being stuck in the shallow groove, the external system records the values of the two pressure sensors 603 at this time. When the next balsa wood board of the same specification is punched and positioned, by comparing the values of the two pressure sensors 603 detected with the recorded values, it can be more convenient to find the vertical position of the shallow groove of the board and the position where the extrusion block 407 completes the insertion of the shallow groove.

[0041] like Figure 1 、 Figure 14 and Figure 15 As shown, on the basis of Example 1, it specifically includes a fixing mechanism 7, which specifically includes a first extension plate 701, a second extension plate 702, a first fixing seat 703, a screw rod 704, a second fixing seat 705 and a pulley group 706. The first extension plate 701 and the second extension plate 702 are respectively provided with a sliding through-type on both sides of the support platform 304. The first extension plate 701 and the second extension plate 702 are provided with two limiting strips that pass through the middle of the support platform 304 on one side close to the support platform 304. The bottom of the first extension plate 701 and the second extension plate 702 Two first fixed seats 703 are provided at the positions corresponding to the limiting strips, and a screw rod 704 is rotatably provided between the two first fixed seats 703 located at the same position of the limiting strip at the bottom of the first extension plate 701 and the second extension plate 702. A second fixed seat 705 is provided at the position of the limiting strip corresponding to the first extension plate 701 and the second extension plate 702 at the bottom of the support platform 304. The screw rod 704 is threadedly matched with the second fixed seat 705, and a pulley set 706 is wound between the two screw rods 704 on the first extension plate 701 and between the two screw rods 704 on the second extension plate.

[0042] When placing the balsa wood board on the support platform 304, the staff first controls the first extension plate 701 and the second extension plate 702 to move away from the center position of the support platform 304 by rotating the screw rod 704. After the horizontal position of the balsa wood board is adjusted, the staff controls the first extension plate 701 and the second extension plate 702 to move closer to the balsa wood board in turn by rotating the screw rod 704 in turn, and finally clamps and fixes the balsa wood board to prevent the rotating seat 2 from rotating or other objects from colliding with the balsa wood board, causing the position of the balsa wood board to change.

[0043] like Figure 1 and Figure 2As shown, based on Example 1, an extrusion belt 8 is further included. The first extension plate 701 and the second extension plate 702 are both provided with an extrusion belt 8 on the inner side of the top.

[0044] The squeezing belts 8 driven by the first extension plate 701 and the second extension plate 702 can protect the balsa wood board and increase the squeezing friction when fixing the balsa wood board, so that when the volume of the balsa wood board is large, a greater squeezing force can be used to ensure the fixing effect of the first extension plate 701 and the second extension plate 702 on the balsa wood board, and will not cause damage to the fixed position of the balsa wood board.

[0045] Finally, it should be noted that the above is only 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 can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An auxiliary positioning device for automatic punching of balsa wood panels, characterized by: include: The support seat (1) and the rotating seat (2), the top of the support seat (1) is rotated to indicate the rotating seat (2); An adjustment mechanism (3) is provided on the top of the rotating seat (2) for quickly adjusting the placement angle of the balsa wood board; A positioning mechanism (4) is provided on one side of the support seat (1) for aligning and positioning the punching position of the balsa wood board.

2. The auxiliary positioning device for automatic punching of balsa wood according to claim 1, characterized in that: The regulating mechanism (3) specifically further includes: Rotating tube (301), four rotating tubes (301) are provided in a horizontal annular manner at even intervals on the top of the rotating seat (2); A threaded rod (302) is provided in the rotating tube (301) in a threaded manner; A slider (303) is hingedly provided on the top of the threaded rod (302); A support platform (304) and a slide rail (305), wherein four slide rails (305) are evenly spaced in a horizontal ring at the bottom of the support platform (304), and the support platform (304) is slidably matched with four sliders (303) on the rotating seat (2) through the four slide rails (305) and is arranged on the top of the rotating seat (2); A first gear (306), a first gear (306) is provided on the middle portion of the outer side of the rotating tube (301); A motor (307) is provided at the top of the rotating tube (301) near each rotating tube (301); The second gear (308) is connected to the output shaft of the motor (307) through a coupling, and the second gear (308) is meshed with the adjacent first gear (306).

3. The auxiliary positioning device for automatic punching of balsa wood according to claim 2, characterized in that: The positioning mechanism (4) specifically further includes: A sliding seat (401) is provided with a mounting groove on one side of the support seat (1), and a sliding seat (401) is slidably provided in the mounting groove. The sliding seat (401) is fixed to the support seat (1) by screws; A mounting frame (402) is provided on the top of the end of the sliding seat (401) that is not in contact with the support seat (1) by means of a bolt connection; A limiting rod (403), a limiting rod (403) extending vertically downward is provided on the inner side of the top of the mounting frame (402); A first electric push rod (404) is provided on the inner side of the top of the mounting frame (402) near the limit rod (403) and pointing vertically downward; A mounting plate (405) is provided on the lower portion of the limiting rod (403) in a sliding manner. The limiting rod (403) passes through the mounting plate (405). The mounting plate (405) is connected to the telescopic rod of the first electric push rod (404); A limiting shell (406), the bottom of the limiting rod (403) is provided with a limiting shell (406) with an opening facing the rotating seat (2); An extrusion block (407) is provided on the inner side of the limiting shell (406) in a sliding manner; A first elastic member (408) is connected between the limiting shell (406) and the extrusion block (407); Position sensors (409), mutually inductive position sensors (409) are provided between the bottom of the limiting shell (406) and the bottom of the extrusion block (407), and the position sensors (409) are electrically connected to the external system.

4. The auxiliary positioning device for automatic punching of balsa wood according to claim 3, characterized in that: The invention also includes a rotating mechanism (5), which specifically includes: A second electric push rod (501), a horizontal second electric push rod (501) is provided on the top of the support seat (1); A sliding rod (502) is provided on the top of the support seat (1) and is slidably embedded therein. The sliding rod (502) is connected to the telescopic rod of the second electric push rod (501); A square plate (503) is provided at the bottom of the rotating seat (2), a slide groove (504) is provided at the bottom of the square plate (503), a cylinder is provided at one end of the sliding rod (502) away from the second electric push rod (501), and the cylinder of the sliding rod (502) slides in the slide groove (504); Rotating plates (505), the four corner positions of the square plate (503) located inside the chute (504) are all rotatably provided with rotating plates (505); Torsion spring (506), the rotation connection position of the rotating plate (505) and the square plate (503) are both connected with a torsion spring (506).

5. The auxiliary positioning device for automatic punching of balsa wood according to claim 4, characterized in that: The auxiliary mechanism (6) is also included. The auxiliary mechanism (6) specifically includes: Fixed columns (601), two fixed columns (601) are provided at the bottom of the mounting plate (405); The sliding column (602) and the inner side of the fixed column (601) are both slidably provided with a sliding column (602); A pressure sensor (603) is provided on the inner top of the fixed column (601); A second elastic member (604) is provided between the pressure sensor (603) and the sliding column (602); The rolling ball (605) is rotatably provided at the bottom of the sliding column (602).

6. The auxiliary positioning device for automatic punching of balsa wood according to claim 5, characterized in that: It also includes a fixing mechanism (7), which specifically includes: A first extension plate (701) and a second extension plate (702) are respectively provided on both sides of the support platform (304) in a sliding manner, and two limiting strips are provided on the side of the first extension plate (701) and the second extension plate (702) close to the support platform (304) and passing through the middle of the support platform (304); First fixing seat (703), two first fixing seats (703) are provided at the positions corresponding to the limiting strips at the bottom of the first extension plate (701) and the second extension plate (702); A screw rod (704) is rotatably provided between two first fixing seats (703) at the bottom of the first extension plate (701) and the second extension plate (702) at the same position of the limiting strip; A second fixing seat (705) is provided at the bottom of the support platform (304) at positions corresponding to the limiting strips of the first extension plate (701) and the second extension plate (702), and the screw rod (704) is threadedly engaged with the second fixing seat (705); A pulley set (706) is wound between the two screw rods (704) on the first extension plate (701) and between the two screw rods (704) on the second extension plate.

7. The auxiliary positioning device for automatic punching of balsa wood according to claim 6, characterized in that include: An extrusion belt (8) is provided on the inner sides of the tops of the first extension plate (701) and the second extension plate (702).

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