Mechanical electrical equipment manufacturing protection device

Abstract

The invention discloses a mechanical electrical equipment manufacturing protection device, and relates to the technical field of mechanical electrical equipment.The mechanical electrical equipment manufacturing protection device comprises CNC machining equipment, the back face of the CNC machining equipment is connected with an air inducing opening, the other end of the air inducing opening is connected with an induced draft fan, and the mechanical electrical equipment manufacturing protection device further comprises a collecting cavity arranged in the air inducing opening and rotationally connected with an insulating ring; the plurality of electromagnets are distributed on the outer side of the insulating ring at intervals in a circumferential array; according to the metal scrap collecting device, the induced draft fan is used for guiding metal scraps generated by CNC machining into the induced draft opening together with air, the metal scraps are adsorbed in the collecting cavity through the electromagnet, and due to the fact that adsorption is achieved through magnetic force and is not affected by the size of scrap iron, compared with a traditional collecting mode, the metal scraps can be more comprehensively collected, and the scrap iron collecting rate is greatly increased; metal scrap residues in a machining area are effectively reduced, a clean machining environment is guaranteed, machining quality is improved, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical and electrical equipment, in particular to a mechanical and electrical equipment manufacturing protection device. Background Art

[0002] With the development of manufacturing industry, CNC machining technology has been widely used due to its advantages of high precision and high efficiency. However, in the process of CNC machining, such as cutting and grinding, a large amount of metal debris will inevitably be generated. If these metal debris are not properly handled, it will bring a series of negative effects.

[0003] On the one hand, metal debris will be scattered around the processing area, polluting the working environment. Small metal debris is easy to be suspended in the air, which not only affects the operator's vision, but also may be inhaled by the staff, endangering their health.

[0004] On the other hand, the accumulation of metal debris may enter the internal precision parts of CNC processing equipment, such as guide rails, screws, etc., accelerate the wear of these parts, increase the failure rate of the equipment, reduce the service life of the equipment, and thus affect the processing accuracy and efficiency.

[0005] In the prior art, filters are provided at the air outlet or other air flow channels of processing equipment in an attempt to intercept metal debris. However, the filters are easily clogged by the debris during use, resulting in poor air flow and affecting the normal ventilation of the processing equipment.

[0006] Moreover, the filter needs to be replaced or cleaned frequently, which increases maintenance costs and downtime. In addition, the filter may not be able to completely and effectively intercept irregularly shaped metal debris, and some debris will still pass through the filter and continue to cause harm in the processing environment.

[0007] In view of this, this application is hereby filed. Summary of the invention

[0008] The object of the present invention is to provide a mechanical and electrical equipment manufacturing protection device to solve the problems raised in the above background technology.

[0009] In order to solve the above technical problems, the present invention provides a mechanical electrical equipment manufacturing protection device, including CNC processing equipment, the back of the CNC processing equipment is connected to an air induced draft port, the other end of the air induced draft port is connected to an air induced draft fan, and also includes a collecting chamber arranged in the air induced draft port, in which an insulating ring is rotatably connected; there are multiple electromagnets in a circular array and distributed at intervals on the outside of the insulating ring; there are two conductive semi-rings in a semi-arc shape, which are respectively connected to a positive and negative power supply, and there are two symmetrically arranged on both sides of the electromagnet.

[0010] Furthermore, one end of a conductive rod is fixedly connected to both sides of the electromagnet, a conductive slot is provided in the conductive half ring, the other end of the conductive rod extends into the conductive slot, and the conductive rod can be slidably arranged in the conductive slot along the side wall of the conductive slot.

[0011] Furthermore, a plurality of spacers are spaced apart in a circular array on the side wall of the insulating ring. The spacers are made of the same material as the insulating ring. The spacers are T-shaped with their tops extending to both sides. The top of the electromagnet is provided with a groove adapted to the spacers.

[0012] Furthermore, an installation groove is provided in the insulating ring, a conductive column is provided in the installation groove, a first rubidium magnet and a second rubidium magnet are provided on the front and rear sides of the collecting chamber, the first rubidium magnet and the second rubidium magnet are on the same horizontal line and are higher than the axis of the conductive column, electric rings are provided on both sides of the conductive column, an insulating mounting piece is provided at the bottom end of the electric ring, and a connecting piece is provided at the top end, and the connecting piece is fixedly connected to the conductive half ring.

[0013] Furthermore, the first rubidium magnet and the second rubidium magnet are provided in plurality and spaced apart in a linear array along the axis of the insulating ring.

[0014] Furthermore, brushes are provided at both ends of the conductive column, a closed-circuit groove is provided in the electric ring, and the brushes can slide in the closed-circuit groove along the inner wall thereof.

[0015] Furthermore, a connecting groove is opened in the conductive column, a driving rod is inserted in the connecting groove, both ends of the driving rod pass through the two sides of the collecting chamber, at least one end of the driving rod is connected to a driving disk, and a motor is arranged on the back of the CNC processing equipment, and a transmission belt is arranged between the output shaft of the motor and the driving disk.

[0016] Furthermore, balls are rotatably connected to the ends of the conductive rod and the brush away from each other.

[0017] Furthermore, a through opening is provided on the bottom surface of the collecting chamber, guide grooves are provided on both sides of the through opening, a collecting box is slidably connected in the guide groove, and a handle is provided on the collecting box.

[0018] Furthermore, an air guide plate is provided at the connection between the air inlet and the collecting chamber, and the end of the air guide plate near the insulating ring extends toward the top end of the insulating ring.

[0019] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, an induced draft fan is used to introduce metal debris generated by CNC machining into an air inlet together with air, and the metal debris is adsorbed by an electromagnet in a collection chamber. Since magnetic adsorption is used, it is not affected by the size of the iron debris. Compared with traditional collection methods, the metal debris can be collected more comprehensively, the iron debris collection rate is greatly improved, the residual metal debris in the processing area is effectively reduced, the processing environment is ensured to be clean, and it is beneficial to improve the processing quality and the service life of the equipment.

[0020] In the present invention, multiple rubidium magnets on both sides of the collection chamber are distributed in a linear array. As the insulating ring rotates, the conductive column cuts the magnetic flux lines in the magnetic field, generating a more continuous and stable induced electromotive force. Compared with a single magnet, this design increases the frequency and opportunity of the conductive column cutting the magnetic flux lines, making the electrical energy transmitted to the circuit connected to the electromagnet more sufficient and stable. Moreover, the complex magnetic field environment formed by multiple rubidium magnets can accurately adjust the magnetic field strength of the electromagnet according to the rotation angle of the insulating ring and the relative position of the conductive column and the specific rubidium magnet, so as to achieve more precise control of the adsorption and release of metal debris and improve the collection efficiency.

[0021] In the present invention, the conductive rods on both sides of the electromagnet are inserted into the conductive grooves of the conductive half ring and can slide, thereby increasing the contact area and making the power conduction more stable and efficient. The ball design on the conductive rods reduces the sliding friction, ensures the smooth rotation of the insulating ring, further stabilizes the circuit connection, and reduces abnormal working conditions of the electromagnet caused by problems such as poor contact.

[0022] In the present invention, the conductive column and the electric ring are in sliding contact in the closed-circuit groove through the brush, thereby ensuring a stable electrical connection with the external circuit during the rotation of the conductive column. The ball on the brush converts sliding friction into rolling friction, thereby reducing friction, reducing the wear of the brush and the closed-circuit groove, and extending the service life. At the same time, the stability and reliability of the electrical connection are improved, ensuring that the entire electrical system can operate stably for a long time, enabling the electromagnet to work continuously and stably, and ensuring the effective adsorption and release of metal debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the overall structure of a protective device for a mechanical and electrical equipment; Figure 2 A schematic diagram of the collection structure of a protective device for mechanical and electrical equipment; Figure 3 A schematic diagram of the internal structure of a collection of protective devices for a mechanical and electrical equipment; Figure 4 A schematic cross-sectional view of a collection structure for manufacturing a protective device for a mechanical and electrical device; Figure 5 A schematic diagram of the structure of a conductive column for manufacturing a protective device for a mechanical and electrical equipment; Figure 6 A schematic diagram of the insulating ring structure for manufacturing a protective device for a mechanical and electrical equipment; Figure 7 A schematic diagram of the structure of an electromagnet for manufacturing a protective device for a mechanical and electrical device; Figure 8 A schematic diagram of the conductive half ring and electric ring structure of a protective device for mechanical and electrical equipment.

[0024] In the figure: 1. CNC processing equipment; 2. Air inlet; 201. Collecting chamber; 202. Guide groove; 203. Air guide plate; 3. Insulating ring; 301. Electromagnet; 302. Conductive half ring; 303. Conductive rod; 304. Conductive groove; 305. Spacer; 306. Mounting groove; 4. Conductive column; 401. Connecting groove; 402. First rubidium magnet; 403. Second rubidium magnet; 404. Brush; 405. Electric ring; 406. Closed-circuit groove; 5. Driving rod; 501. Driving disk; 6. Collecting box; 601. Handle; 7. Insulating mounting piece; 8. Connecting piece. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-8 , the present invention provides a technical solution: A protective device for manufacturing mechanical and electrical equipment includes a CNC processing device 1, wherein the back of the CNC processing device 1 is connected to an air induced draft port 2, and the other end of the air induced draft port 2 is connected to an induced draft fan, and further includes a collecting chamber 201, which is arranged in the air induced draft port 2 and is rotatably connected to an insulating ring 3; a plurality of electromagnets 301, which are arranged in a circular array and are distributed at intervals on the outside of the insulating ring 3; and two conductive semi-rings 302, which are semi-arc-shaped and are respectively connected to positive and negative power supplies, and two of them are symmetrically arranged on both sides of the electromagnet 301.

[0027] A plurality of spacers 305 are spaced apart in a circular array on the side wall of the insulating ring 3 . The spacers 305 and the insulating ring 3 are made of the same material. The spacers 305 are T-shaped with the top extending to both sides. The top of the electromagnet 301 is provided with a groove adapted to the spacers 305 .

[0028] The air duct 2 is connected to the CNC processing equipment 1, an air duct fan is arranged on the other side of the air duct 2, a collecting chamber 201 is arranged in the air duct 2, and an insulating ring 3 is rotatably connected therein, a spacer plate 305 is arranged on the insulating ring 3, an electromagnet 301 is arranged in the interval between the spacer plates 305, and conductive half rings 302 respectively connected to positive and negative power supplies are arranged on both sides of the insulating ring 3, and the electromagnet 301 is in contact with the conductive half ring 302.

[0029] When performing CNC machining and grinding operations, the metal debris generated will be guided to the air inlet 2 by the induced draft fan together with the air. When the air carries the metal debris through the collection chamber 201, the insulating ring 3 can be driven to rotate. When the electromagnet 301 on the insulating ring 3 passes through the two conductive half rings 302, its positive and negative power supplies are connected to form a loop.

[0030] The electromagnet 301 is energized to generate magnetic force, which can adsorb iron filings in the air onto the electromagnet 301. Then, as the electromagnet 301 rotates, when the electromagnet 301 rotates to the bottom, it no longer conflicts with the conductive half ring 302, the closed loop is disconnected, the electromagnet 301 is no longer energized, and the magnetic force disappears. At this time, the iron filings will be thrown off due to the centrifugal force generated by the rotation of the insulating ring 3 and stored under the collection chamber 201, thereby completing the iron filing collection operation during CNC machining operations. The adsorption is carried out by magnetic force and is not affected by the size of the iron filings, so the iron filing collection rate is higher.

[0031] Please refer to the attached Figure 3 , Attachment Figure 4 And attached Figure 5 In a specific implementation of the present embodiment, one end of a conductive rod 303 is fixedly connected to both sides of the electromagnet 301, a conductive slot 304 is opened in the conductive half ring 302, the other end of the conductive rod 303 extends into the conductive slot 304, and the conductive rod 303 can be slidably arranged in the conductive slot 304 along the side wall of the conductive slot 304.

[0032] The conductive rod 303 is inserted and slid in the conductive slot 304 , so that the contact area between the electromagnet 301 and the conductive half ring 302 is larger, and the power conduction is more stable and efficient.

[0033] A ball is rotatably connected to one end of the conductive rod 303 that is away from the conductive rod 303 .

[0034] The design of the ball bearings on the conductive rod 303 reduces the friction resistance encountered by the conductive rod 303 when it slides in the conductive half ring 302 , making the rotation of the insulating ring 3 smoother.

[0035] Please refer to the attached Figure 3 , Attachment Figure 4 and attached Figure 6In a specific implementation of the present embodiment, a mounting groove 306 is provided in the insulating ring 3, a conductive column 4 is provided in the mounting groove 306, a first rubidium magnet 402 and a second rubidium magnet 403 are provided on the front and rear sides of the collecting chamber 201, the first rubidium magnet 402 and the second rubidium magnet 403 are on the same horizontal line and are higher than the axis of the conductive column 4, electric rings 405 are provided on both sides of the conductive column 4, an insulating mounting piece 7 is provided at the bottom end of the electric ring 405, and a connecting piece 8 is provided at the top end, and the connecting piece 8 is fixedly connected to the conductive half ring 302.

[0036] A conductive column 4 is arranged in the insulating ring 3, and a first nephrite magnet 402 and a second nephrite magnet 403 are arranged on the front and rear sides of the collecting chamber 201, so that when the insulating ring 3 rotates, the conductive column 4 installed in the installation groove 306 of the insulating ring 3 also moves in a circular motion.

[0037] At this time, the first rubidium magnet 402 and the second rubidium magnet 403 located on the front and rear sides of the collecting chamber 201 and on the same horizontal line and higher than the axis of the conductive column 4 remain stationary. Since the conductive column 4 continuously changes its relative position with the first rubidium magnet 402 and the second rubidium magnet 403 during the rotation process, the conductive column 4 moves in the magnetic field to cut the magnetic flux lines.

[0038] According to the principle of electromagnetic induction, when a conductor moves in a magnetic field by cutting magnetic lines of force, an induced electromotive force will be generated at both ends of the conductor.

[0039] The electric rings 405 arranged on both sides of the conductive column 4 maintain a stable position relationship through the insulating mounting piece 7 at the bottom, and the top end is fixedly connected to the conductive half ring 302 through the connecting piece 8.

[0040] In this way, the generated induced electromotive force can be transmitted to the external circuit (such as the circuit related to the electromagnet 301) through the electric ring 405, providing an additional source of power for the electrical part of the entire system, thereby achieving coordinated work with the electromagnet 301, making the electromagnet 301 charged and able to complete functions such as adsorption control of metal debris.

[0041] The first rubidium magnet 402 and the second rubidium magnet 403 are arranged in a plurality and spaced apart in a linear array along the axis of the insulating ring 3 .

[0042] As the insulating ring 3 rotates, the conductive column 4 will periodically cut the magnetic flux lines generated by each rubidium magnet. Compared with a single magnet, multiple rubidium magnets distributed in a linear array increase the frequency and chance of the conductive column 4 cutting the magnetic flux lines.

[0043] This frequent cutting of magnetic flux lines can generate a more continuous and stable induced electromotive force, making the electric energy transmitted to the external circuit (such as the circuit connected to the electromagnet 301) through the electric ring 405 more stable and sufficient.

[0044] The linear array distribution of multiple neodymium magnets forms a relatively complex and regular magnetic field environment. This magnetic field distribution can cause the conductive pillar 4 to be subjected to magnetic fields of different strengths and directions at different positions.

[0045] During the entire rotation cycle, the magnitude and direction of the induced electromotive force generated by the conductive column 4 will change with its relative relationship with the rubidium magnets at different positions, which is conducive to more precise control of parameters such as current and voltage in the circuit. For example, the magnetic field strength of the electromagnet 301 can be accurately adjusted according to the rotation angle of the insulating ring 3 and the relative position of the conductive column 4 and a specific rubidium magnet, thereby better achieving control over the adsorption and release of metal debris.

[0046] Brushes 404 are disposed at both ends of the conductive column 4 , and a closed-circuit groove 406 is provided in the electric ring 405 . The brushes 404 can slide in the closed-circuit groove 406 along the inner wall thereof.

[0047] When the conductive column 4 rotates with the insulating ring 3, the brushes 404 at both ends thereof play a key role in electrical connection. The brushes 404 are in contact with the electric ring 405, and the electric ring 405 is connected to the conductive half ring 302 and other external circuits through structures such as the insulating mounting parts 7 and the connecting parts 8. In this process, due to the rotation of the conductive column 4, the brushes 404 need to slide in the closed-circuit groove 406 of the electric ring 405.

[0048] This sliding contact method can ensure that the conductive column 4 can still maintain a stable electrical connection with the external circuit during the rotation process. No matter what rotation angle the conductive column 4 is at, the brush 404 can slide adaptively in the closed-circuit groove 406, thereby ensuring that the induced electromotive force generated by the conductive column 4 (if it is in an electromagnetic induction working scenario) or other electrical signals that need to be transmitted can be continuously and stably transmitted to the external circuit through the electric ring 405.

[0049] A ball is rotatably connected to one end of the brush 404 that is away from the other end.

[0050] The purpose of the ball bearing that is connected to the brush 404 and rotates away from one end of the conductive column 4 is to reduce the friction between the brush 404 and the closed-circuit groove 406. During the rotation of the conductive column 4, the brush 404 will slide frequently in the closed-circuit groove 406. If there is no ball bearing, there will be direct sliding friction between the brush 404 and the closed-circuit groove 406, and the friction will be relatively large, which may easily cause wear of the brush 404 and the closed-circuit groove 406 and may affect the stability of the electrical connection.

[0051] The presence of the ball causes the friction between the brush 404 and the closed-circuit slot 406 to become rolling friction, and the friction force of rolling friction is much smaller than sliding friction, which can reduce the wear of the brush 404 and the closed-circuit slot 406 and extend their service life.

[0052] At the same time, the smaller friction force also helps the brush 404 to slide more smoothly in the closed-circuit slot 406, further improving the stability and reliability of the electrical connection and ensuring that the entire electrical system can operate stably for a long time.

[0053] Please see attached Figure 2 , Attachment Figure 3 , Attachment Figure 4 and attached Figure 5 In a specific implementation of the present embodiment, a connection groove 401 is opened in the conductive column 4, a driving rod 5 is inserted in the connection groove 401, both ends of the driving rod 5 pass through the two sides of the collecting chamber 201, and a driving disk 501 is connected to at least one end of the driving rod 5. A motor is arranged on the back of the CNC processing equipment 1, and a transmission belt is arranged between the output shaft of the motor and the driving disk 501.

[0054] The motor is used as a power source, and its output shaft rotates, driving the driving disc 501 to rotate through the transmission belt. Since the driving disc 501 is connected to the driving rod 5, and the driving rod 5 is inserted into the connecting groove 401 of the conductive column 4, when the driving disc 501 rotates, the driving rod 5 rotates accordingly. The two ends of the driving rod 5 pass through the two sides of the collecting chamber 201. This structural design enables the driving rod 5 to stably drive the conductive column 4 to move during the rotation process, thereby driving the insulating ring 3 to rotate.

[0055] The rotation of the insulating ring 3 plays a key role in the operation of the components such as the electromagnet 301 in the whole system. For example, the magnetic field state of the electromagnet 301 is changed by rotation to achieve the adsorption and release of metal debris.

[0056] Please see attached Figure 2 , Attachment Figure 3 and attached Figure 4 In a specific implementation of the present embodiment, a through opening is provided on the bottom surface of the collecting chamber 201, guide grooves 202 are provided on both sides of the through opening, a collecting box 6 is slidably connected in the guide groove 202, and a handle 601 is provided on the collecting box 6.

[0057] Air containing metal debris is introduced into the collection chamber 201 through an induced draft fan. When the metal debris is processed (such as being adsorbed by the electromagnet 301 and released at an appropriate time), it falls to the bottom of the collection chamber 201 under the action of gravity and centrifugal force.

[0058] A through opening is provided on the bottom surface of the collection chamber 201, and a collection box 6 is slidably connected in the guide grooves 202 on both sides of the through opening. When metal debris falls, the collection box 6 is located below the through opening to collect the metal debris. The handle 601 provided on the collection box 6 facilitates the collection box 6 to be pulled out of the guide groove 202 so as to clean the collected metal debris.

[0059] In addition, an air guide plate 203 is provided at the connection between the air inlet 2 and the collecting chamber 201 , and the end of the air guide plate 203 near the insulating ring 3 extends toward the top of the insulating ring 3 .

[0060] The air guide plate 203 is arranged at the connection between the air inlet 2 and the collecting chamber 201, and its end near the insulating ring 3 extends toward the top of the insulating ring 3. When the induced draft fan is working, air enters the collecting chamber 201 from the air inlet 2, and the air guide plate 203 changes the direction of the airflow to make the airflow flow toward the top of the insulating ring 3. Such an airflow direction design is conducive to better interaction between metal debris and the insulating ring 3 and components such as the electromagnet 301 thereon.

Claims

1. A mechanical electrical equipment manufacturing protection device, comprising a CNC processing device (1), the back of the CNC processing device (1) is connected to an air inlet (2), and the other end of the air inlet (2) is connected to an induced draft fan, characterized in that: It also includes a collecting chamber (201), which is arranged in the air inlet (2) and in which an insulating ring (3) is rotatably connected; There are multiple electromagnets (301) in a circular array and spaced apart outside the insulating ring (3); There are two conductive half rings (302) in a semi-arc shape, which are respectively connected to a positive and negative power supply, and are symmetrically arranged on both sides of the electromagnet (301).

2. A mechanical and electrical equipment manufacturing protection device as claimed in claim 1, characterized in that: One end of a conductive rod (303) is fixedly connected to both sides of the electromagnet (301); a conductive slot (304) is provided in the conductive half ring (302); the other end of the conductive rod (303) extends into the conductive slot (304); and the conductive rod (303) is slidably arranged in the conductive slot (304) along the side wall of the conductive slot (304).

3. A mechanical and electrical equipment manufacturing protection device as claimed in claim 2, characterized in that: A plurality of spacer plates (305) are spaced apart in a circular array on the side wall of the insulating ring (3); the spacer plates (305) and the insulating ring (3) are made of the same material; the spacer plates (305) are T-shaped with their top ends extending to both sides; and a groove adapted to the spacer plates (305) is provided at the top end of the electromagnet (301).

4. A mechanical and electrical equipment manufacturing protection device as claimed in claim 3, characterized in that: The insulating ring (3) is provided with a mounting groove (306), a conductive column (4) is arranged in the mounting groove (306), a first rubidium magnet (402) and a second rubidium magnet (403) are arranged on the front and rear sides of the collecting chamber (201), the first rubidium magnet (402) and the second rubidium magnet (403) are located on the same horizontal line and are higher than the axis of the conductive column (4), electric rings (405) are arranged on both sides of the conductive column (4), an insulating mounting piece (7) is arranged at the bottom end of the electric ring (405), and a connecting piece (8) is arranged at the top end, and the connecting piece (8) is fixedly connected to the conductive half ring (302).

5. A mechanical and electrical equipment manufacturing protection device as claimed in claim 4, characterized in that: A plurality of the first rubidium magnets (402) and the second rubidium magnets (403) are spaced apart in a linear array along the axis of the insulating ring (3).

6. A mechanical and electrical equipment manufacturing protection device as claimed in claim 5, characterized in that: Brushes (404) are provided at both ends of the conductive column (4), a closed-circuit groove (406) is provided in the electric ring (405), and the brush (404) can slide in the closed-circuit groove (406) along the inner wall thereof.

7. A mechanical and electrical equipment manufacturing protection device as claimed in claim 6, characterized in that: A connection slot (401) is provided in the conductive column (4), a driving rod (5) is inserted into the connection slot (401), two ends of the driving rod (5) pass through two sides of the collecting chamber (201), at least one end of the driving rod (5) is connected to a driving disk (501), a motor is provided on the back of the CNC processing equipment (1), and a transmission belt is provided between the output shaft of the motor and the driving disk (501).

8. A mechanical and electrical equipment manufacturing protection device as claimed in claim 7, characterized in that: The conductive rod (303) and the brush (404) are both rotatably connected to one end away from the other end with a ball.

9. A mechanical and electrical equipment manufacturing protection device as claimed in claim 8, characterized in that: The bottom surface of the collection chamber (201) is provided with a through opening, and guide grooves (202) are provided on both sides of the through opening. A collection box (6) is slidably connected in the guide groove (202), and a handle (601) is provided on the top of the collection box (6).

10. A mechanical and electrical equipment manufacturing protection device as claimed in claim 9, characterized in that: An air guide plate (203) is provided at the connection between the air inlet (2) and the collecting chamber (201), and the end of the air guide plate (203) close to the insulating ring (3) extends towards the top end of the insulating ring (3).

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