A polishing dust filtering workbench with external filter box

Abstract

The present application relates to dust filtering workbench technical field, particularly to a kind of external filter box formula polishing dust filtering workbench, including support table, the top of support table is fixed with operation box, the inside of operation box is provided with the operation table of placing to be polished object, and the inside of support table is provided with the external filter box body of the waste after polishing being discharged, the outside of support table is also provided with the fan of the suction force provided to external filter box body, the inside of operation box is also provided with the collection mechanism of polishing waste being collected;The present application is matched by the cooperation of collection mechanism, servo motor, horizontal push plate, cleaning plate, threaded rod, electric hydraulic rod and longitudinal push plate and other structures, prevents polishing waste from being deposited in large quantities in the inside of workbench cabinet, causes the blockage of air duct and causes system wind resistance to rise, fan negative pressure attenuation, guarantees the suction and filtration performance stability of long-term operation of equipment, effectively avoids air duct blockage, ensures the suction force and filtration effect of fan long-term stability.

Description

Technical Field

[0001] This invention relates to the field of dust filtration workbench technology, and in particular to an external filter box type polishing dust filtration workbench. Background Technology

[0002] In industrial production processes such as precision machining of hardware products, cleaning of metal castings, polishing of sanitary ware, and grinding and deburring of non-metallic components, polishing, grinding, and wire drawing processes continuously generate a large amount of fine dust. This dust not only deteriorates the workshop working environment, but long-term inhalation can also easily cause occupational health injuries such as pneumoconiosis in operators. Dust from reactive metals such as aluminum, magnesium, and titanium also poses a dust explosion risk and is a key target for safety control in the manufacturing industry. With the continuous improvement of my country's industrial environmental protection emission standards and occupational health protection requirements, the source control of dust in polishing and grinding processes has become a mandatory configuration in the production process.

[0003] To achieve structural integration and compact workstation space, existing polishing dust filtration workbenches typically integrate the filter element entirely within the workbench cabinet. During operation, waste such as polishing dust, metal shavings, and abrasive particles are drawn into the filtration chamber within the cabinet by airflow under the negative pressure of the fan, and then pass through a filter element composed of high-efficiency activated carbon for filtration. As usage time increases, the amount of residual waste inside the cabinet continuously accumulates, which can clog some air ducts, increase system resistance, and cause the fan's negative pressure to drop, ultimately weakening the overall suction and filtration effect and directly affecting subsequent normal use. Therefore, an external filter box type polishing dust filtration workbench is proposed. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides an external filter box type polishing dust filtration workbench.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: An external filter box type polishing dust filtration workbench includes a support platform, an operation box fixed on the top of the support platform, an operation table for placing the object to be polished inside the operation box, an external filter box body for discharging polishing waste inside the support platform, a fan for providing suction to the external filter box body outside the support platform, an openable cabinet door outside the support platform, and a collection mechanism for collecting polishing waste inside the operation box. The collection mechanism can collect the waste generated after polishing inside the operating box, and can also clean the bottom of the operating table. The collection mechanism includes a horizontal push plate and a vertical push plate disposed inside the operation box. A cleaning plate for cleaning the bottom of the operation table is disposed on the top of the horizontal push plate. A drive mechanism for moving the horizontal push plate and the cleaning plate is disposed between the horizontal push plate and the operation box. The collection mechanism also includes a protective cylinder installed inside the external filter box body, and the inside of the protective cylinder is a filter element for filtering polishing waste.

[0006] As a preferred embodiment of the present invention, the driving mechanism includes a servo motor fixed outside the operating box, the output shaft of the servo motor is fixed with a threaded rod, and a blocking disc is provided at the end of the threaded rod away from the servo motor to block the transverse push plate. Above the fan is an electro-hydraulic rod that drives the longitudinal push plate to move. The telescopic end of the electro-hydraulic rod is fixed to the upper half of the longitudinal push plate. The transverse push plate has a threaded hole in the middle that matches the threaded rod. The cleaning plate and the longitudinal push plate are located below the cleaning plate. The lower half of the longitudinal push plate has an inclined surface on the side near the electro-hydraulic rod. The output shaft of the servo motor drives the threaded rod to rotate. The threaded hole of the transverse push plate matches the threaded rod, causing the transverse push plate to move laterally back and forth along the outer wall of the threaded rod. The transverse push plate pushes the polishing waste under the operating table. The transverse push plate drives the cleaning plate to move laterally back and forth, and the cleaning plate cleans the remaining polishing waste at the bottom of the operating table.

[0007] As a preferred embodiment of the present invention, a connecting rod is also inserted inside the transverse push plate, a chuck is fixed to the lower half of the connecting rod, and a return spring is fixed to the bottom of the chuck. The interior of the transverse push plate is provided with a sliding groove to facilitate the lifting and lowering of the chuck, and the interior of the transverse push plate is also provided with a through groove to facilitate the lifting and lowering of the connecting rod. The through groove is connected to the sliding groove. The reset spring is disposed in the slide groove, the bottom of the reset spring is fixed to the bottom of the inner wall of the slide groove, and the top of the connecting rod extends to the outside of the transverse push plate and is fixed to the bottom of the cleaning plate.

[0008] As a preferred embodiment of the present invention, a connecting frame is also provided on the top of the transverse push plate, a pressure spring is fixed on the top of the connecting frame, and several brushes are fixed on the bottom of the connecting frame. The control box is also equipped with a switch, which is connected to the electric hydraulic rod via a wire; The connecting frame is fitted on the top of the horizontal push plate, and the brush is in contact with the outer wall of the threaded rod. The top of the pressure spring is in contact with the bottom of the cleaning plate. When the horizontal push plate moves to the side closer to the vertical push plate, the horizontal push plate contacts the switch and applies pressure to the switch. The switch controls the electric hydraulic rod to work through the wire. The electric hydraulic rod drives the vertical push plate to move to the side closer to the external filter box body. The vertical push plate pushes the polishing waste pushed by the horizontal push plate a second time, pushing the polishing waste to the side closer to the external filter box body.

[0009] As a preferred embodiment of the present invention, an upper drain cylinder is provided above the filter element, and a lower drain cylinder is provided below the filter element. The upper sewage discharge cylinder is also equipped with a filter disc, and the lower sewage discharge cylinder is equipped with an adjustment plate. The filter element is equipped with high-efficiency activated carbon. A connecting pipe is fixed to the top of the upper drain cylinder. The end of the connecting pipe away from the upper drain cylinder is connected to the blower. The external filter box body is also equipped with a discharge pipe. The top of the discharge pipe is fixed to the bottom of the control box. Polishing waste inside the control box can directly enter the interior of the external filter box body through the discharge pipe. The upper drain cylinder and the lower drain cylinder are respectively fixed to the top and bottom of the external filter box body by bolts.

[0010] As a preferred embodiment of the present invention, the outer wall of the filter disc is fixed with a hanging ear, the inner wall of the upper drain cylinder is provided with an annular groove, and the inner wall of the upper drain cylinder is also provided with a slot adapted to the hanging ear. The slot is connected to the annular groove, and a pull ring is fixed in the middle of the filter disc. By rotating the pull ring, the pull ring drives the filter disc to rotate, and the filter disc drives the hanging ear to rotate, so that the hanging ear moves along the interior of the annular groove and the slot, thereby facilitating the replacement of the filter disc.

[0011] As a preferred embodiment of the present invention, a baffle is provided at the bottom of the inner wall of the lower sewage cylinder, a rotating shaft is fixed at the top of the baffle, and a connecting cylinder is provided at the bottom of the adjusting plate. The adjusting plate is sleeved on the outside of the rotating shaft. Both the baffle and the adjusting plate are semi-cylinders. The adjusting plate is located above the baffle. Pulling the connecting cylinder causes the adjusting plate to rotate around the outer wall of the rotating shaft.

[0012] As a preferred embodiment of the present invention, the bottom of the connecting cylinder is further fixed with an insertion rod and a limiting rod. The interior of the connecting cylinder is provided with an installation hole adapted to the return spring, and the bottom of the insertion rod is also fixed with a tray. The bottom of the tray is provided with a limiting groove adapted to the limiting rod. The limiting rod supports the insertion rod. When it is necessary to rotate the adjusting plate, the tray is pushed upward, and the tray drives the insertion rod to move upward. The insertion rod separates from the limiting rod, and the insertion rod is pushed to move. The insertion rod drives the adjusting plate to rotate around the axis of the rotating shaft through the transverse push plate.

[0013] Compared with the prior art, the beneficial effects that this invention can achieve are: This invention, through the cooperation of a collection mechanism, servo motor, horizontal push plate, cleaning plate, threaded rod, electro-hydraulic rod and vertical push plate, prevents polishing waste from accumulating in large quantities inside the workbench cabinet, causing blockage of the air duct, increased system air resistance and reduced fan negative pressure, and ensures stable suction and filtration performance of the equipment during long-term operation, effectively avoiding air duct blockage and ensuring long-term stability of the fan's suction force and filtration effect. This invention uses a servo motor to drive the threaded rod to rotate, which in turn drives the transverse push plate to move back and forth along the threaded rod. Simultaneously, it drives the cleaning plate to scrape and clean the bottom of the operating table. This can peel off the residual waste deposited on the bottom of the operating table and push it to the discharge side, thus mechanizing the waste cleaning process and significantly reducing the burden of manual cleaning. This invention utilizes the cooperation of structures such as a transverse push plate, a switch, an electro-hydraulic rod, and a longitudinal push plate. When the transverse push plate moves into position and presses the switch, the switch controls the electro-hydraulic rod to start via a wire. The electro-hydraulic rod drives the longitudinal push plate to move towards one side of the external filter box body, thereby forcefully pushing the pile of waste pushed by the transverse push plate into the discharge port, preventing blockage and bridging at the discharge port connection, and ensuring smooth waste transfer. The present invention uses a filter disc inside the upper sewage discharge cylinder to engage with an annular groove and slot on the inner wall of the upper sewage discharge cylinder via an outer wall lug. When the filter disc needs to be repaired or replaced, simply rotate the pull ring in the middle of the filter disc to move the lug along the annular groove and slot, and the filter disc can be quickly removed without having to go deep into the narrow chamber to operate, making the disassembly and assembly of the filter assembly labor-saving and efficient. This invention achieves a graded purification path by first adsorbing and filtering the dust-laden airflow entering the external filter box body through activated carbon in the protective cylinder, and then further intercepting it through the filter disc; the waste is centrally stored in the external filter box body, and with the upper and lower drain pipes, it can realize closed-loop fixed-point discharge and transfer, which not only protects the fan, but also facilitates workshop environmental management. This invention features a discharge adjustment structure consisting of an adjustment plate and a baffle at the bottom of the lower discharge cylinder. The adjustment plate is rotated around the shaft by the connecting cylinder, changing the relative angle or overlap between the semi-cylinders of the adjustment plate and the baffle. This allows for flexible control of the waste discharge volume, adapting to the requirements of different polishing processes on discharge speed and filtration pressure difference, and improving the adaptability of the equipment to different operating conditions. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the operating box of the present invention; Figure 3 This is a schematic diagram of the structure of the transverse push plate of the present invention; Figure 4 This is a schematic diagram of the threaded rod of the present invention; Figure 5This is a schematic diagram of the cleaning plate of the present invention; Figure 6 This is a schematic diagram of the connecting rod of the present invention; Figure 7 This is a schematic diagram of the connecting frame of the present invention; Figure 8 This is a schematic diagram of the connecting frame of the present invention; Figure 9 This is a schematic diagram of the external filter box body of the present invention; Figure 10 This is a schematic diagram of the structure of the upper sewage discharge cylinder of the present invention; Figure 11 This is a schematic diagram of the lower sewage pipe of the present invention; Figure 12 This is a schematic diagram of the structure of the adjustment plate of the present invention.

[0015] The components include: 1. Support platform; 2. Control box; 3. Control panel; 4. External filter box body; 5. Fan; 6. Cabinet door; 7. Collection mechanism; 701. Servo motor; 702. Horizontal push plate; 703. Cleaning plate; 704. Threaded rod; 705. Electro-hydraulic rod; 706. Vertical push plate; 707. Blocking plate; 708. Connecting frame; 709. Brush; 710. Pressure spring; 711. Connecting rod; 712. Return spring; 713. Chuck; 714. Protective cylinder; 715. Filter element; 716. Lower drain cylinder; 717. Upper drain cylinder; 718. Filter disc; 719. Adjusting plate; 720. Connecting cylinder; 721. Insert rod; 722. Limit rod; 723. Switch. Detailed Implementation

[0016] To make the technical means, creative features, and achieved objectives and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0017] Example: The present invention provides, as follows Figure 1 The external filter box type polishing dust filtration workbench shown includes a support platform 1, an operation box 2 fixed on the top of the support platform 1, an operation table 3 for placing the object to be polished inside the operation box 2, an external filter box body 4 for discharging polishing waste inside the support platform 1, a fan 5 for providing suction to the external filter box body 4 outside the support platform 1, and a cabinet door 6 that can be opened and closed outside the support platform 1.

[0018] The top of the control box 2 is also equipped with a light box to provide sufficient light for the polishing station, and the support table 1 is also equipped with a storage slot to temporarily store workpieces and consumables. The control table 3 has a work surface with dense micropores, and a filter layer is set under the table surface. Dust and water mist pass through the micropores with the airflow and enter the filter layer for initial interception. The external filter box body 4 is installed on the outside of the work table and is connected to the air duct under the table surface. It is equipped with multi-stage filter elements inside for secondary filtration of fine dust and residual water mist.

[0019] As can be seen from the above, when using it, the items that need to be polished are placed on top of the workbench 3, and the waste generated during polishing is collected by the fan 5.

[0020] refer to Figure 2 , Figure 3 and Figure 4 As shown, the inside of the operation box 2 is also equipped with a collection mechanism 7 for collecting polishing waste; The collection mechanism 7 can collect the waste generated after polishing inside the operation box 2, and can also clean the bottom of the operation table 3. The collection mechanism 7 includes a horizontal push plate 702 and a vertical push plate 706 disposed inside the operation box 2. A cleaning plate 703 for cleaning the bottom of the operation table 3 is disposed on the top of the horizontal push plate 702. A drive mechanism for moving the horizontal push plate 702 and the cleaning plate 703 is disposed between the horizontal push plate 702 and the operation box 2. The collection mechanism 7 also includes a protective cylinder 714 disposed inside the external filter box body 4, and a filter element 715 for filtering polishing waste is disposed inside the protective cylinder 714.

[0021] refer to Figure 3 , Figure 4 and Figure 5 As shown, the drive mechanism includes a servo motor 701 fixed outside the operation box 2. The output shaft of the servo motor 701 is fixed with a threaded rod 704. The end of the threaded rod 704 away from the servo motor 701 is provided with a blocking plate 707 to block the transverse push plate 702. Above the fan 5 is an electric hydraulic rod 705 that drives the longitudinal push plate 706 to move. The telescopic end of the electric hydraulic rod 705 is fixed to the upper half of the longitudinal push plate 706. The transverse push plate 702 has a threaded hole in the middle that matches the threaded rod 704. The cleaning plate 703 and the longitudinal push plate 706 are located below the cleaning plate 703. The transverse push plate 702 is located below the cleaning plate 703. The lower half of the longitudinal push plate 706 has an inclined surface on the side near the electro-hydraulic rod 705. The output shaft of the servo motor 701 drives the threaded rod 704 to rotate. The threaded hole of the transverse push plate 702 cooperates with the threaded rod 704, so that the transverse push plate 702 moves laterally back and forth along the outer wall of the threaded rod 704. The transverse push plate 702 pushes the polishing waste under the operating table 3. The transverse push plate 702 drives the cleaning plate 703 to move laterally back and forth. The cleaning plate 703 cleans the remaining polishing waste at the bottom of the operating table 3.

[0022] refer to Figure 3 , Figure 4 and Figure 5 As shown, a connecting rod 711 is also inserted inside the transverse push plate 702. A chuck 713 is fixed to the lower half of the connecting rod 711, and a return spring 712 is fixed to the bottom of the chuck 713. The interior of the transverse push plate 702 is provided with a sliding groove to facilitate the lifting and lowering of the chuck 713, and the interior of the transverse push plate 702 is also provided with a through groove to facilitate the lifting and lowering of the connecting rod 711. The through groove is connected to the sliding groove. The reset spring 712 is installed in the slide groove, and the bottom of the reset spring 712 is fixed to the bottom of the inner wall of the slide groove. The top of the connecting rod 711 extends to the outside of the transverse push plate 702 and is fixed to the bottom of the cleaning plate 703.

[0023] refer to Figure 6 , Figure 7 and Figure 8 As shown, a connecting frame 708 is also fitted on the top of the horizontal push plate 702. A pressure spring 710 is fixed on the top of the connecting frame 708, and several brushes 709 are fixed on the bottom of the connecting frame 708. The control box 2 is also equipped with a chuck 713, which is connected to the electric hydraulic rod 705 via a wire; The connecting frame 708 is fitted on the top of the transverse push plate 702, and the brush 709 is in contact with the outer wall of the threaded rod 704. The top of the pressure spring 710 is in contact with the bottom of the cleaning plate 703. When the transverse push plate 702 moves to the side closer to the longitudinal push plate 706, the transverse push plate 702 contacts the chuck 713 and applies pressure to the chuck 713. The chuck 713 controls the electric hydraulic rod 705 to work through the wire. The electric hydraulic rod 705 drives the longitudinal push plate 706 to move to the side closer to the external filter box body 4. The longitudinal push plate 706 pushes the polishing waste pushed by the transverse push plate 702 a second time, pushing the polishing waste to the side closer to the external filter box body 4.

[0024] refer to Figure 9 , Figure 10 and Figure 11 As shown, an upper drain cylinder 717 is provided above the filter element 715, and a lower drain cylinder 716 is provided below the filter element 715. The upper drain cylinder 717 is equipped with a filter disc 718, and the lower drain cylinder 716 is equipped with an adjustment plate 719. The filter element 715 is equipped with high-efficiency activated carbon. A connecting pipe is fixed to the top of the upper drain cylinder 717. The end of the connecting pipe away from the upper drain cylinder 717 is connected to the blower 5. The external filter box body 4 is also equipped with a discharge pipe. The top of the discharge pipe is fixed to the bottom of the operation box 2. The polishing waste inside the operation box 2 can directly enter the interior of the external filter box body 4 through the discharge pipe. The upper drain cylinder 717 and the lower drain cylinder 716 are respectively fixed to the top and bottom of the external filter box body 4 by bolts.

[0025] refer to Figure 9 , Figure 10 and Figure 11 As shown, the outer wall of the filter disc 718 is fixed with a hanging ear, the inner wall of the upper drain cylinder 717 is provided with an annular groove, and the inner wall of the upper drain cylinder 717 is also provided with a slot that matches the hanging ear. The slot is connected to the annular groove, and a pull ring is fixed in the middle of the filter disc 718. By rotating the pull ring, the pull ring drives the filter disc 718 to rotate, and the filter disc 718 drives the hanging ear to rotate, so that the hanging ear moves along the inside of the annular groove and the slot, thereby making it convenient for people to replace the filter disc 718.

[0026] When polishing waste needs to be collected, the output shaft of the servo motor 701 drives the threaded rod 704 to rotate. The threaded hole of the transverse push plate 702 cooperates with the threaded rod 704, causing the transverse push plate 702 to move laterally and reciprocally along the outer wall of the threaded rod 704. The transverse push plate 702 pushes the polishing waste under the operating table 3. The transverse push plate 702 drives the cleaning plate 703 to move laterally and reciprocally. The cleaning plate 703 cleans the remaining polishing waste at the bottom of the operating table 3. The transverse push plate 702 contacts the chuck 713 and applies pressure to the chuck 713. The chuck 713 controls the electric hydraulic rod 705 to work through the wire. The electric hydraulic rod 705 drives the longitudinal push plate 706 to move closer to the side of the external filter box body 4. The longitudinal push plate 706 pushes the polishing waste pushed by the transverse push plate 702 a second time, pushing the polishing waste to the side closer to the external filter box body 4. The polishing waste inside the operating box 2 enters the interior of the external filter box body 4 directly through the discharge pipe.

[0027] refer to Figure 11 and Figure 12As shown, a baffle is provided at the bottom of the inner wall of the lower sewage pipe 716, and a rotating shaft is fixed at the top of the baffle. A connecting cylinder 720 is also provided at the bottom of the adjusting plate 719. The adjusting plate 719 is sleeved on the outside of the rotating shaft. Both the baffle and the adjusting plate 719 are set as semi-cylinders. The adjusting plate 719 is set above the baffle. Pulling the connecting cylinder 720 causes the adjusting plate 719 to rotate around the outer wall of the rotating shaft.

[0028] refer to Figure 11 and Figure 12 As shown, the bottom of the connecting cylinder 720 is also fixed with a plug rod 721 and a limiting rod 722. The interior of the connecting cylinder 720 is provided with a mounting hole that matches the return spring 712. The bottom of the plug rod 721 is also fixed with a tray. The bottom of the tray is provided with a limiting groove that matches the limiting rod 722. The limiting rod 722 supports the plug rod 721. When it is necessary to rotate the adjusting plate 719, the tray is pushed upward, and the tray drives the plug rod 721 to move upward. The plug rod 721 separates from the limiting rod 722, and pushes the plug rod 721 to move. The plug rod 721 drives the adjusting plate 719 to rotate around the axis of rotation through the transverse push plate 702.

[0029] Pushing the tray upward causes the insertion rod 721 to move upward, separating it from the limit rod 722. Pushing the insertion rod 721 further causes it to move, and the insertion rod 721 drives the adjusting plate 719 to rotate around the axis of the rotating shaft via the transverse push plate 702.

[0030] Working principle: Before the polishing waste needs to be collected, if the filter disc 718 needs to be repaired or replaced, the pull ring can be turned to rotate the filter disc 718, so that the lugs on the filter disc 718 can move along the annular groove and slot, thereby making it easy to remove the filter disc 718 for repair or replacement. During the waste collection process, the output shaft of the servo motor 701 drives the threaded rod 704 to rotate. The transverse push plate 702 has a threaded hole that mates with the threaded rod 704. As the threaded rod 704 rotates, the transverse push plate 702 moves laterally back and forth along its outer wall. The transverse push plate 702 pushes the polishing waste accumulated below the operating table 3 forward, simultaneously driving the cleaning plate 703 to move laterally back and forth, thus cleaning the residual waste on the bottom surface of the operating table 3. When the transverse push plate 702 moves to the set position, it touches and presses the switch 723. The switch 723 controls the electro-hydraulic rod 705 to start via a wire. The electro-hydraulic rod 705 drives the longitudinal push plate 706 to move towards the external filter box body 4. The longitudinal push plate 706 pushes the waste pushed by the transverse push plate 702 a second time, pushing the waste closer to the external filter box body 4. Subsequently, the polishing waste in the operating box 2 is directly discharged into the external filter box body 4 through the discharge pipe.

[0031] After the polishing waste is collected, separate the upper drain cylinder 717 from the external filter box body 4, and take out the filter element 715 inside the external filter box body 4 for replacement.

[0032] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. An external filter box type polishing dust filtration workbench, comprising a support platform (1), an operation box (2) fixed on the top of the support platform (1), an operation table (3) for placing the object to be polished is provided inside the operation box (2), and an external filter box body (4) for discharging polishing waste is provided inside the support platform (1), a fan (5) for providing suction force to the external filter box body (4) is also provided outside the support platform (1), and a cabinet door (6) that can be opened and closed is also provided outside the support platform (1), characterized in that, The operation box (2) is also equipped with a collection mechanism (7) for collecting polishing waste. The collection mechanism (7) can collect the waste generated after polishing inside the operation box (2), and can also clean the bottom of the operation table (3); The collection mechanism (7) includes a horizontal push plate (702) and a vertical push plate (706) disposed inside the operation box (2). A cleaning plate (703) for cleaning the bottom of the operation table (3) is disposed on the top of the horizontal push plate (702). A drive mechanism for moving the horizontal push plate (702) and the cleaning plate (703) is disposed between the horizontal push plate (702) and the operation box (2). The collection mechanism (7) also includes a protective cylinder (714) disposed inside the external filter box body (4), and the protective cylinder (714) is provided with a filter element (715) for filtering polishing waste.

2. The external filter box type polishing dust filtration workbench according to claim 1, characterized in that, The drive mechanism includes a servo motor (701) fixed outside the operation box (2). The output shaft of the servo motor (701) is fixed with a threaded rod (704). The end of the threaded rod (704) away from the servo motor (701) is provided with a blocking plate (707) to block the transverse push plate (702). Above the fan (5) is an electric hydraulic rod (705) that drives the longitudinal push plate (706) to move. The telescopic end of the electric hydraulic rod (705) is fixed to the upper half of the longitudinal push plate (706).

3. The external filter box type polishing dust filtration workbench according to claim 2, characterized in that, A connecting rod (711) is also inserted inside the transverse push plate (702). A chuck (713) is fixed to the lower half of the connecting rod (711), and a return spring (712) is fixed to the bottom of the chuck (713). The interior of the transverse push plate (702) is provided with a sliding groove to facilitate the lifting and lowering of the chuck (713), and the interior of the transverse push plate (702) is also provided with a through groove to facilitate the lifting and lowering of the connecting rod (711), and the through groove is connected to the sliding groove.

4. The external filter box type polishing dust filtration workbench according to claim 2, characterized in that, The top of the transverse push plate (702) is also fitted with a connecting frame (708), the top of the connecting frame (708) is fixed with a pressure spring (710), and the bottom of the connecting frame (708) is fixed with several brushes (709). The control box (2) is also equipped with a switch (723), which is connected to the electric hydraulic rod (705) via a wire.

5. The external filter box type polishing dust filtration workbench according to claim 1, characterized in that, An upper drain cylinder (717) is provided above the filter element (715), and a lower drain cylinder (716) is provided below the filter element (715). The upper drain cylinder (717) is also equipped with a filter disc (718), and the lower drain cylinder (716) is equipped with an adjustment plate (719).

6. The external filter box type polishing dust filtration workbench according to claim 5, characterized in that, The outer wall of the filter disc (718) is fixed with a hanging ear, the inner wall of the upper drain cylinder (717) is provided with an annular groove, and the inner wall of the upper drain cylinder (717) is also provided with a slot that matches the hanging ear.

7. The external filter box type polishing dust filtration workbench according to claim 5, characterized in that, The bottom of the inner wall of the lower sewage pipe (716) is also provided with a baffle, the top of the baffle is fixed with a rotating shaft, and the bottom of the adjusting plate (719) is also provided with a connecting cylinder (720).

8. The external filter box type polishing dust filtration workbench according to claim 7, characterized in that, The bottom of the connecting cylinder (720) is also fixed with a plug rod (721) and a limiting rod (722). The interior of the connecting cylinder (720) is provided with an installation hole that matches the reset spring (712). The bottom of the plug rod (721) is also fixed with a tray. The bottom of the tray is provided with a limiting groove that matches the limiting rod (722).

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