Excavator boom machining device

Abstract

The application discloses a excavator movable arm machining device, including support, the outer part of the support is provided with clamping mechanism, the clamping mechanism includes link frame, the outer surface of the link frame is fixedly connected with rotary cylinder, the output end of the rotary cylinder is fixedly connected with the rotating plate, the outer part of the rotating plate is provided with linear motor, the outer surface of the linear motor is movably connected with slide rail, and the slide rail is divided into three sections, the outer surface of the middle slide rail is fixedly connected with the outer surface of the rotating plate, and the outer surfaces of the slide rails on both sides are fixedly connected with the outer surface of the link frame, and relates to the excavator production and processing technical field, solves the problem that the position of the clamping mechanism is fixed when the excavator movable arm machining device is used, on the one hand, the position cannot be adjusted when the movable arm is processed, which causes that the processing is time-consuming and laborious and the efficiency is reduced, and on the other hand, the feeding and discharging of the movable arm is inconvenient.

Description

Technical Field

[0001] This invention relates to the field of excavator manufacturing and processing technology, specifically to a mechanical processing device for excavator booms. Background Technology

[0002] Excavator booms require machining in many areas, and their external structure is relatively large. Currently, traditional positioning and clamping methods are commonly used in machining. This means that after machining one boom, the positioning and clamping points must be re-found before machining the next, resulting in time-consuming machining and low precision, severely impacting the machining efficiency of excavator booms. A machining device for excavator booms, patent application number CN202020057984.8, includes a base, worktable, linear drive device, first clamping frame, clamping bar, second clamping frame, and drive clamping device, which can improve machining efficiency. Another machining device for excavator booms, patent application number CN201922079154.5, includes a fixed box with a transmission device inserted into its upper end. This allows for adaptation to booms of different angles, provides secure fixing, and achieves high machining precision. By incorporating the transmission device, various boom models can be machined. This device has a wide range of applications and strong practicality.

[0003] Although the two devices mentioned above have solved the existing technical problems, they still have certain defects in actual use. Because the position of the clamping part of the two devices is fixed when processing the excavator boom, on the one hand, the boom position cannot be adjusted when processing the boom, which makes the processing more time-consuming, labor-intensive and inefficient. On the other hand, the fixed clamping position makes it more inconvenient to load and unload the boom. Therefore, it is necessary to solve the existing problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a mechanical processing device for excavator booms. This device solves the problems that existing excavator boom processing devices have fixed clamping mechanisms, which prevent the boom from being adjusted during processing, resulting in time-consuming, labor-intensive, and inefficient processing. Additionally, they cause inconvenience in loading and unloading the boom.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a mechanical processing device for an excavator boom, comprising a support, a clamping mechanism provided on the outside of the support, the clamping mechanism comprising a connecting frame, a rotary cylinder fixedly connected to the outer surface of the connecting frame, a rotating plate fixedly connected to the output end of the rotary cylinder, a linear motor provided on the outside of the rotating plate, a slide rail movably connected to the outer surface of the linear motor, the slide rail being divided into three sections, the outer surface of the middle slide rail being fixedly connected to the outer surface of the rotating plate, the outer surfaces of the two side slide rails being fixedly connected to the outer surface of the connecting frame, a clamp fixedly connected to the outer surface of the linear motor, a lifting rod fixedly connected to the outer surface of the connecting frame, and the outer surface of the lifting rod being fixedly connected to the outer surface of the support.

[0006] Preferably, a bracket is slidably connected to the outer surface of the support, a lead screw is rotatably connected to the body of the bracket, the outer surface of the lead screw is threadedly connected to the body of the support, and a drive motor is fixedly connected to one end of the lead screw via a coupling, the outer surface of the drive motor is fixedly connected to the outer surface of the bracket.

[0007] Preferably, a positioning component is provided on the outside of the rotating plate. The positioning component includes a positioning hole, which is opened on the outer surface of the rotating plate. A photoresistor is fixedly connected inside the positioning hole. A spotlight is axially aligned on the outside of the positioning hole. The outer surface of the spotlight is embedded and fixedly connected to the outer surface of the linear motor.

[0008] Preferably, the spotlight is provided with a locking rod on its exterior. The outer surface of the locking rod is slidably embedded in and connected to the outer surface of the linear motor. The locking rod is provided with a locking groove aligned axially on its exterior. The locking groove is opened on the outer surface of the rotating plate. The interior of the locking groove is engaged with the outer surface of the locking rod. The locking rod is magnetically connected to an electromagnet. The outer surface of the electromagnet is fixedly connected to the interior of the locking groove. The electromagnet and the photoresistor are electrically connected.

[0009] Preferably, the outside of the rotating plate is provided with an upper shielding assembly, the upper shielding assembly includes a vertical plate, the outer surface of the vertical plate is fixedly connected to the outer surface of the bracket, two shielding plates are movably connected to the outer surface of the vertical plate, the outer surfaces of the two shielding plates are in contact with each other, and a rotating rod is fixedly connected to the outer surface of each of the two shielding plates.

[0010] Preferably, one end of the rotating rod is fixedly connected to a telescopic rod, the output end of the telescopic rod is rotatably connected to the outer surface of the upright plate, a fixed plate is rotatably connected through the outer surface of the telescopic rod, and the outer surface of the fixed plate is fixedly connected to the outer surface of the connecting frame.

[0011] Preferably, a drive unit is provided on the outside of the telescopic rod. The drive unit includes a worm gear. The body of the worm gear is fixedly connected to the outer surface of the telescopic rod. A worm is engaged with the outer surface of the worm gear. A helical rod is fixedly connected to one end of the worm. A support plate is rotatably connected to the outer surface of the helical rod. The outer surface of the support plate is fixedly connected to the outer surface of the connecting frame.

[0012] Preferably, a sliding plate is movably connected through the outer surface of the spiral rod, and a stop is fixedly connected to the outer surface of the sliding plate. The stop is sleeved on the outside of one side slide rail, and the outer surface of the stop is movably connected to the outer surface of the linear motor. A compression spring is sleeved on the outside of the spiral rod, and the two ends of the compression spring are fixedly connected to the outer surfaces of the sliding plate and the support plate, respectively.

[0013] Preferably, the outer side of the baffle is provided with a lower baffle unit, the lower baffle unit includes an inner cavity, the inner cavity is opened on the body of one side support, a cloth strip is movably connected inside the inner cavity, the inner cavity is connected to a through groove, the through groove is opened on the outer surface of one side support and is in a through state, the outer surface of the cloth strip is slidably connected to the inside of the through groove, and one side of the outer surface of the cloth strip is fixedly connected to the outer surface of the other side support.

[0014] Preferably, the other end of the fabric strip is wound with a spool, the outer surface of the spool is rotatably connected to the inside of the inner cavity, the body of the spool is fixedly connected to a rotating shaft, the end of the rotating shaft is rotatably embedded in the inside of the inner cavity, and a torsion spring is sleeved on the outer surface of the rotating shaft, the two ends of the torsion spring are fixedly connected to the inside of the inner cavity and the outer surface of the spool, respectively.

[0015] Beneficial effects

[0016] This invention provides a machining device for excavator booms. Compared with the prior art, it has the following advantages:

[0017] (1) By setting up a clamping mechanism, the lifting rod can be used to determine the clamping position of the clamping fixture by the connecting frame. At the same time, the linear motor drives the clamping fixture to move along the slide rail, which facilitates the loading and unloading of the excavator boom. The boom is rotated by the rotary cylinder, which not only further facilitates loading and unloading, but also facilitates position adjustment during processing and reduces processing difficulty.

[0018] (2) By setting up a positioning component, and using the combination of spotlights and photoresistors, the clamping position can be accurately positioned again after the boom is loaded and unloaded, so as to facilitate better processing.

[0019] (3) By setting up an upper shielding component, two shielding plates can be closed to block the area above the processing area. On the one hand, this prevents foreign objects from falling and damaging the boom, and on the other hand, it prevents waste from splashing during processing.

[0020] (4) By setting up a drive unit, when the linear motor drives the boom to rise to pick up or put down materials, the linear motor contacts the support frame, causing the slide plate to rise and drive the screw and worm to rotate synchronously, so that the worm wheel drives the cover plate to move through the telescopic rod and the rotating rod, thereby facilitating the rise of the boom through the opening and closing of the cover plate.

[0021] (5) By setting a lower stop unit, the cloth belt is wound up by a drum, so that the cloth belt blocks the space between the two supports, avoiding the contamination or damage of the lead screw by processing waste, thereby affecting the position adjustment of the supports. Attached Figure Description

[0022] Figure 1 This is a perspective view of the external structure of the present invention;

[0023] Figure 2 This is a perspective view of the internal structure of the rotating plate of the present invention;

[0024] Figure 3 This is a perspective view of the external structure of the mounting plate of the present invention;

[0025] Figure 4 This is a perspective view of the external structure of the skateboard of the present invention;

[0026] Figure 5 This is a perspective view of the internal structure of the support of the present invention.

[0027] In the diagram: 1. Support; 2. Connecting frame; 3. Rotary cylinder; 4. Turning plate; 5. Positioning assembly; 51. Positioning hole; 52. Photoresistor; 53. Spotlight; 54. Locking rod; 55. Locking slot; 56. Electromagnet; 6. Upper shielding assembly; 61. Vertical plate; 62. Shielding plate; 63. Lower stop unit; 631. Inner cavity; 632. Fabric belt; 633. Through groove; 634. Drum; 635. Rotating shaft; 636. Torsion spring; 64. Rotating rod; 65. Telescopic rod; 66. Drive unit; 661. Worm gear; 662. Worm; 663. Helical rod; 664. Support plate; 665. Slide plate; 666. Support frame; 667. Compression spring; 67. Fixed plate; 7. Linear motor; 8. Slide rail; 9. Clamp; 10. Lifting rod; 11. Bracket; 12. Lead screw; 13. Drive motor. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figure 1-5The present invention provides a technical solution: a mechanical processing device for an excavator boom.

[0030] Example 1: Refer to the attached instruction manual Figure 1 Appendix Figure 2 ;

[0031] The system includes a support 1, with a clamping mechanism on its exterior. The clamping mechanism includes a connecting frame 2, which is E-shaped and serves to connect and fix the support. A rotary cylinder 3 is fixedly connected to the outer surface of the connecting frame 2. The rotary cylinder 3 is connected to an external control circuit. A rotating plate 4 is fixedly connected to the output end of the rotary cylinder 3. A linear motor 7 is mounted on the exterior of the rotating plate 4. The linear motor 7 has a self-locking function and is electrically connected to the external control circuit. Two sets of linear motors are provided for separate loading and unloading. A slide rail 8 is movably connected to the outer surface of the linear motor 7. The slide rail 8 is divided into three sections: the middle slide rail has two ends and two sides. One end of each rail 8 is provided with a certain curvature and they are adapted to each other to facilitate the rotation of the rotating plate 4. The outer surface of the middle slide rail 8 is fixedly connected to the outer surface of the rotating plate 4, and the outer surfaces of the two side slide rails 8 are fixedly connected to the outer surface of the connecting frame 2. The outer surface of the linear motor 7 is fixedly connected to a clamp 9, which is made of an existing electric gripper or a clamping structure with the same function. The outer surface of the connecting frame 2 is fixedly connected to a lifting rod 10, which is made of an existing electric push rod and is electrically connected to an external control circuit. The clamping position is adjusted by extension and retraction. The outer surface of the lifting rod 10 is fixedly connected to the outer surface of the support 1.

[0032] A bracket 11 is slidably connected to the outer surface of the support 1. A lead screw 12 is rotatably connected to the body of the bracket 11. The threads on both sides of the lead screw 12 are arranged in opposite directions so as to drive the two supports 1 to move synchronously in opposite directions. The outer surface of the lead screw 12 is threadedly connected to the body of the support 1. One end of the lead screw 12 is fixedly connected to a drive motor 13 through a coupling. The drive motor 13 is made of a servo motor and is electrically connected to an external control circuit. The outer surface of the drive motor 13 is fixedly connected to the outer surface of the bracket 11.

[0033] By setting up a clamping mechanism, the lifting rod 10 can be used to determine the clamping position of the connecting frame 2 on the clamp 9. At the same time, the linear motor 7 drives the clamp 9 to move along the slide rail 8, which facilitates the loading and unloading of the excavator boom. Furthermore, the boom is rotated by the rotary cylinder 3, which not only further facilitates loading and unloading but also makes it easier to adjust the position during processing, thus reducing the processing difficulty.

[0034] Example 2: Based on Example 1, refer to the appendix of the instruction manual. Figure 1 Appendix Figure 2 ;

[0035] A positioning component 5 is provided on the outside of the rotating plate 4. The positioning component 5 includes a positioning hole 51, which is opened on the outer surface of the rotating plate 4. A photoresistor 52 is fixedly connected inside the positioning hole 51. The photoresistor 52 is made of photosensitive material and is electrically connected to the external control circuit. When it receives light, its resistance value decreases. A spotlight 53 is axially aligned on the outside of the positioning hole 51. The spotlight 53 is electrically connected to the external control circuit and can emit light for illumination. The outer surface of the spotlight 53 is embedded and fixedly connected to the outer surface of the linear motor 7.

[0036] The spotlight 53 is equipped with a locking rod 54 on its exterior. The locking rod 54 is made of a pressure-resistant and wear-resistant magnetic material, and a magnet is installed inside the linear motor 7 through which it passes, so as to attract the locking rod 54 and make it move and reset. The outer surface of the locking rod 54 is slidably connected to the outer surface of the linear motor 7. The locking rod 54 is axially aligned with a locking groove 55, which is opened on the outer surface of the rotating plate 4. The inside of the locking groove 55 is engaged with the outer surface of the locking rod 54. The locking rod 54 is magnetically connected to an electromagnet 56. The outer surface of the electromagnet 56 is fixedly connected to the inside of the locking groove 55. The electromagnet 56 and the photoresistor 52 are electrically connected. The electromagnet 56 is connected in series with the external control circuit through the photoresistor 52. The magnetic force of the electromagnet 56 is adjusted by the change in the resistance of the photoresistor 52.

[0037] By setting up the positioning component 5, and using the cooperation of the spotlight 53 and the photoresistor 52, the clamping position can be accurately positioned again after the boom is loaded and unloaded, so as to facilitate better processing.

[0038] Example 3: Based on Example 2, refer to the appendix of the instruction manual. Figure 1 Appendix Figure 3 ;

[0039] The outer side of the rotating plate 4 is provided with an upper shielding assembly 6, which includes a vertical plate 61. The vertical plate 61 serves as a connecting support. The outer surface of the vertical plate 61 is fixedly connected to the outer surface of the bracket 11. Two shielding plates 62 are movably connected to the outer surface of the vertical plate 61. The shielding plates 62 are inclined and fit together to block external objects and prevent processing waste from splashing. The outer surfaces of the two shielding plates 62 fit together. A rotating rod 64 is fixedly connected to the outer surface of each shielding plate 62. The rotating rod 64 can block the shielding plates 62. As a preferred method, the length of the rotating rod 64 is set to be relatively long to increase the rotation diameter and increase the rotation range of the shielding plates 62, so as to facilitate the movement of the boom for loading and unloading.

[0040] One end of the rotating rod 64 is fixedly connected to a telescopic rod 65. The telescopic rod 65 is made of a pressure-resistant and wear-resistant material, and there is a pressure-resistant radial limiting measure between the telescopic end and the body. Thus, the position of the support 1 can be easily adjusted by telescopic movement. The output end of the telescopic rod 65 is embedded and rotatably connected to the outer surface of the upright plate 61. A fixed plate 67 is rotatably connected through the outer surface of the telescopic rod 65. The fixed plate 67 plays the role of connection, support and fixation. The outer surface of the fixed plate 67 is fixedly connected to the outer surface of the connecting frame 2.

[0041] By setting up the upper shielding component 6, the two shielding plates 62 can be closed to block the area above the processing area, preventing foreign objects from falling and damaging the boom, and preventing waste materials from splashing during processing.

[0042] Example 4: Based on Example 3, refer to the appendix of the instruction manual. Figure 3 Appendix Figure 4 ;

[0043] A drive unit 66 is provided on the outside of the telescopic rod 65. The drive unit 66 includes a worm gear 661. The body of the worm gear 661 is fixedly connected to the outer surface of the telescopic rod 65. A worm 662 meshes with the outer surface of the worm gear 661. Two sets of worms 662 and worm gear 661 are provided to drive the cover plates 62 on both sides respectively. A helical rod 663 is fixedly connected to one end of the worm 662. A support plate 664 is rotatably connected to the outer surface of the helical rod 663. A bearing can be embedded and fixedly connected to the body of the support plate 664, and the bearing is used to fix it to the helical rod 663. This facilitates the rotation of the helical rod 663 and avoids helical contact. The outer surface of the support plate 664 is fixedly connected to the outer surface of the connecting frame 2.

[0044] A sliding plate 665 is movably connected through the outer surface of the spiral rod 663. The sliding plate 665 is provided with a spiral groove to adapt and connect with the spiral rod 663, so that the spiral rod 663 rotates through spiral contact. A retainer 666 is fixedly connected to the outer surface of the sliding plate 665. The retainer 666 is U-shaped for easy fitting. The retainer 666 is fitted on the outside of one side slide rail 8. The outer surface of the retainer 666 is movably connected to the outer surface of the linear motor 7. A compression spring 667 is fitted on the outside of the spiral rod 663. The compression spring 667 is made of a compression-resistant and fatigue-resistant material. It can return the sliding plate 665 to its original position through rebound. The two ends of the compression spring 667 are fixedly connected to the outer surfaces of the sliding plate 665 and the support plate 664, respectively.

[0045] By setting up the drive unit 66, when the linear motor 7 drives the boom to rise to pick up or put down materials, the linear motor 7 contacts the support frame 666, causing the slide plate 665 to rise and drive the screw rod 663 and the worm gear 662 to rotate synchronously. This causes the worm wheel 661 to drive the cover plate 62 to move through the telescopic rod 65 and the rotating rod 64. Thus, the opening and closing of the cover plate 62 facilitates the rise of the boom.

[0046] Example 5: Based on Example 4, refer to the appendix of the instruction manual. Figure 1 Appendix Figure 5 ;

[0047] The outer side of the cover plate 62 is provided with a lower stop unit 63, which includes an inner cavity 631. The inner cavity 631 is opened on the body of the side support 1. A cloth belt 632 is movably connected inside the inner cavity 631. The cloth belt 632 is made of a flexible, pressure-resistant, wear-resistant and corrosion-resistant material. By extending, it can block the top of the lead screw 12 to avoid the problem of the lead screw 12 being damaged by processing waste. The inner cavity 631 is connected to a through groove 633. The internal size of the through groove 633 is adapted to the external size of the cloth belt 632. The through groove 633 is opened on the outer surface of the side support 1 and is in a through state. The outer surface of the cloth belt 632 is slidably connected to the inside of the through groove 633. One side of the outer surface of the cloth belt 632 is fixedly connected to the outer surface of the other side support 1.

[0048] The other end of the fabric tape 632 is wound with a spool 634, which can wind up the fabric tape 632 for easy use. The outer surface of the spool 634 is rotatably connected to the inside of the inner cavity 631. The body of the spool 634 is fixedly connected to a rotating shaft 635. The end of the rotating shaft 635 is rotatably connected to the inside of the inner cavity 631. A torsion spring 636 is sleeved on the outer surface of the rotating shaft 635. The torsion spring 636 can facilitate the winding of the fabric tape 632 by the spool 634 through its rebound. The two ends of the torsion spring 636 are fixedly connected to the inside of the inner cavity 631 and the outer surface of the spool 634, respectively.

[0049] By setting the lower stop unit 63, the cloth strip 632 is wound up by the drum 634, so that the cloth strip 632 blocks the space between the two supports 1, avoiding contamination or damage to the lead screw 12 by processing waste, thereby affecting the position adjustment of the support 1.

[0050] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0051] During operation, firstly, based on the length of the excavator boom, the drive motor 13 rotates the lead screw 12, causing the two side supports 1 to move synchronously in opposite directions to adjust the distance between them. During the adjustment process, if the distance increases, the fabric belt 632 is stretched taut, simultaneously driving the drum 634 and the shaft 635 to rotate and compressing the torsion spring 636, thus releasing the fabric belt 632 and causing the covering length of the fabric belt 632 to change accordingly. If the distance decreases, the torsion spring 636 rebounds, causing the drum 634 to reverse to further guide the fabric belt 632. The fabric is wound and wound up, and when the fabric belt 632 is wound up, the impurities are scraped off by scraping. Then, according to the height difference between the two sides of the boom and the required processing height, the output ends of the lifting rods 10 on both sides extend out and drive the clamps 9 on both sides to adjust the height through the connecting frame 2 to determine the fixed position during processing. Then, the two linear motors 7 on the left and right of the set move down along the slide rail 8, thereby driving the clamps 9 to move down by the same distance and clamping and fixing the boom through the clamps 9. Then, the boom is reset in the reverse direction to make the boom in the determined fixed position.

[0052] When the linear motor 7 is reset, the spotlight 53 emits light. When the light shines into the positioning hole 51, it shines on the photoresistor 52, thereby reducing the resistance of the photoresistor 52. This increases the current and magnetic force of the electromagnet 56, which in turn attracts the lever 54 to move. When the lever 54 is axially aligned with the slot 55, the lever 54 slides into the slot 55, thus completing the positioning through locking and enhancing the force resistance of the linear motor 7.

[0053] Once the boom is fixed, it can be processed using machining tools. During processing, when different positions need to be processed, the output end of the rotary cylinder 3 rotates, causing the boom to rotate and adjust its position via the rotating plate 4, facilitating processing of different positions on the boom. After processing, the two sets of linear motors 7 move simultaneously to process the two ends of the intermediate slide rail 8 respectively. Then, the rotary cylinder 3 causes the rotating plate 4 to rotate 180°, so that the unloaded linear motor 7 is positioned below for loading, while the linear motor 7 holding the boom slides upwards for unloading, and contacts the abutment 666 during the sliding process, thereby... The pusher 666 pushes the slide plate 665 onto the plate and stretches the compression spring 667. The slide plate 665, through the spiral contact, causes the spiral rod 663 to drive the worm gear 662 to rotate. Through the meshing of the worm gear 662 and the worm wheel 661, the telescopic rod 65 drives the cover plate 62 to rotate and open and close via the rotating rod 64, thus removing the obstruction above. Then, the processed boom is at the top, and the material can be unloaded using the hoisting tool. Then, the linear motor 7 descends and resets, and is positioned on the upper section of the slide rail 8. The pusher 666 disengages, causing the compression spring 667 to rebound, thereby resetting the cover plate 62. The above steps are then repeated for continuous processing.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A machining device for an excavator boom, comprising a support (1), characterized in that: The support (1) is provided with a clamping mechanism, which includes a connecting frame (2). A rotary cylinder (3) is fixedly connected to the outer surface of the connecting frame (2). A rotating plate (4) is fixedly connected to the output end of the rotary cylinder (3). A linear motor (7) is provided on the outside of the rotating plate (4). A slide rail (8) is movably connected to the outer surface of the linear motor (7). The slide rail (8) is divided into three sections. The outer surface of the middle slide rail (8) is fixedly connected to the outer surface of the rotating plate (4). The outer surfaces of the slide rails (8) on both sides are fixedly connected to the outer surface of the connecting frame (2). A clamp (9) is fixedly connected to the outer surface of the linear motor (7). A lifting rod (10) is fixedly connected to the outer surface of the connecting frame (2). The outer surface of the lifting rod (10) is fixedly connected to the outer surface of the support (1). The rotating plate (4) is provided with a positioning component (5) on its exterior. The positioning component (5) includes a positioning hole (51). The positioning hole (51) is opened on the outer surface of the rotating plate (4). A photoresistor (52) is fixedly connected inside the positioning hole (51). A spotlight (53) is axially aligned on the outside of the positioning hole (51). The outer surface of the spotlight (53) is embedded and fixedly connected to the outer surface of the linear motor (7). The spotlight (53) is provided with a locking rod (54) on its outside. The outer surface of the locking rod (54) is slidably connected to the outer surface of the linear motor (7). The locking rod (54) is provided with a locking groove (55) aligned with its outer axis. The locking groove (55) is opened on the outer surface of the rotating plate (4). The inside of the locking groove (55) is engaged with the outer surface of the locking rod (54). The locking rod (54) is magnetically connected to an electromagnet (56). The outer surface of the electromagnet (56) is fixedly connected to the inside of the locking groove (55). The electromagnet (56) and the photoresistor (52) are electrically connected.

2. The excavator boom machining device according to claim 1, characterized in that: The outer surface of the support (1) is slidably connected to a bracket (11), and the body of the bracket (11) is rotatably connected to a lead screw (12). The outer surface of the lead screw (12) is threadedly connected to the body of the support (1), and one end of the lead screw (12) is fixedly connected to a drive motor (13) via a coupling. The outer surface of the drive motor (13) is fixedly connected to the outer surface of the bracket (11).

3. The excavator boom machining device according to claim 1, characterized in that: The rotating plate (4) is provided with an upper shielding component (6). The upper shielding component (6) includes a vertical plate (61). The outer surface of the vertical plate (61) is fixedly connected to the outer surface of the bracket (11). Two shielding plates (62) are movably connected to the outer surface of the vertical plate (61). The outer surfaces of the two shielding plates (62) are in contact with each other. A rotating rod (64) is fixedly connected to the outer surface of each of the two shielding plates (62).

4. The excavator boom machining device according to claim 3, characterized in that: One end of the rotating rod (64) is fixedly connected to a telescopic rod (65). The output end of the telescopic rod (65) is rotatably connected to the outer surface of the upright plate (61). A fixed plate (67) is rotatably connected through the outer surface of the telescopic rod (65). The outer surface of the fixed plate (67) is fixedly connected to the outer surface of the connecting frame (2).

5. The excavator boom machining device according to claim 4, characterized in that: A drive unit (66) is provided on the outside of the telescopic rod (65). The drive unit (66) includes a worm gear (661). The body of the worm gear (661) is fixedly connected to the outer surface of the telescopic rod (65). A worm (662) is meshed on the outer surface of the worm gear (661). A helical rod (663) is fixedly connected to one end of the worm (662). A support plate (664) is rotatably connected to the outer surface of the helical rod (663). The outer surface of the support plate (664) is fixedly connected to the outer surface of the connecting frame (2).

6. The excavator boom machining device according to claim 5, characterized in that: The outer surface of the spiral rod (663) is movably connected to the slide plate (665), and the outer surface of the slide plate (665) is fixedly connected to the abutment (666). The abutment (666) is sleeved on the outside of one side slide rail (8), and the outer surface of the abutment (666) is movably connected to the outer surface of the linear motor (7). The outer surface of the spiral rod (663) is sleeved with a compression spring (667), and the two ends of the compression spring (667) are fixedly connected to the outer surfaces of the slide plate (665) and the support plate (664), respectively.

7. The excavator boom machining device according to claim 3, characterized in that: The outer side of the baffle (62) is provided with a lower baffle unit (63), the lower baffle unit (63) includes an inner cavity (631), the inner cavity (631) is opened on the body of one side support (1), the inner cavity (631) is movably connected with a cloth strip (632), the inner cavity (631) is connected with a through groove (633), the through groove (633) is opened on the outer surface of one side support (1) and is in a through state, the outer surface of the cloth strip (632) is slidably connected to the inside of the through groove (633), and one side of the outer surface of the cloth strip (632) is fixedly connected to the outer surface of the other side support (1).

8. The excavator boom machining device according to claim 7, characterized in that: The other end of the fabric tape (632) is wound with a spool (634). The outer surface of the spool (634) is rotatably connected to the inside of the inner cavity (631). The body of the spool (634) is fixedly connected to a rotating shaft (635). The end of the rotating shaft (635) is rotatably embedded in the inside of the inner cavity (631). A torsion spring (636) is sleeved on the outer surface of the rotating shaft (635). The two ends of the torsion spring (636) are fixedly connected to the inside of the inner cavity (631) and the outer surface of the spool (634), respectively.

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