Swing arm type workpiece tray automatic exchange device and exchange method thereof

Abstract

The invention discloses a swing arm type workpiece tray automatic exchange device and an exchange method thereof in the technical field of workpiece machine tool machining, and the swing arm type workpiece tray automatic exchange device comprises a base which is provided with a mounting rod; the bottom of the mounting rod is connected with a first rotating shaft through a bearing, the top of the mounting rod is connected with a second rotating shaft through a bearing, and the axis of the first rotating shaft and the axis of the second rotating shaft coincide. After a workpiece on the first tray is machined, a motor is started and drives a connecting shaft to rotate, so that the connecting shaft drives a driving gear to rotate clockwise, and then a left toothed bar can be driven to move backwards, a right toothed bar can be driven to move forwards, and a top driven gear drives a second rotating shaft to rotate clockwise; the bottom driven gear drives the first rotating shaft to rotate by the same angle anticlockwise, so that the first tray can rotate to a to-be-machined area after the height of the second tray is lowered through the electric push rod, and the second tray can be heightened through the electric push rod after rotating to a machining area.

Description

Technical Field

[0001] The invention relates to the technical field of workpiece machine tool processing, and in particular to a swing arm type workpiece pallet automatic exchange device and an exchange method thereof. Background Art

[0002] The workpiece pallet exchange device usually consists of two exchange pallets. When one pallet loaded with workpieces is working in the processing area, the other pallet is unloading the processed workpieces and loading the unprocessed workpieces in the waiting area and waiting for exchange, so that the workpieces in the processing area can be processed while the workpieces in the waiting area are unloaded and clamped, so that the processing time and auxiliary time overlap, thereby significantly improving production efficiency.

[0003] However, the applicant found that the prior art generally exchanges two pallets by manually moving them, which is inefficient, and the pallet leaving the processing area will retain debris generated during processing, which will affect the subsequent loading of unprocessed workpieces on the pallet. Therefore, we propose an automatic exchange device for swing-arm workpiece pallets and an exchange method thereof. Summary of the invention

[0004] The object of the present invention is to provide a swing arm type workpiece pallet automatic exchange device and an exchange method thereof to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: an automatic exchange device for a swing arm workpiece pallet, comprising a base, on which a mounting rod is provided; The bottom of the mounting rod is connected to a first rotating shaft via a bearing, and the top of the mounting rod is connected to a second rotating shaft via a bearing, and the axes of the first rotating shaft and the second rotating shaft coincide with each other; The first rotating shaft is provided with a first swing arm, and the second rotating shaft is provided with a second swing arm; A tray 1 is installed on the top of the swing arm 2, an electric push rod is installed on the bottom of the swing arm 1, and a tray 2 is installed on the output end of the electric push rod; The tray 1 and the tray 2 are evenly provided with mounting blocks, and the mounting blocks are provided with electric telescopic rods, and the output ends of the electric telescopic rods are provided with clamping blocks; The first rotating shaft and the second rotating shaft are both provided with driven gears, and the mounting rod is provided with a driving assembly, and the driving assembly is connected to the driven gears on both sides; The driving assembly is provided with a transmission assembly; The base is provided with a mounting frame, and a fan and a fixing box are provided on the mounting frame, the air inlet of the fan is connected with the fixing box, the fixing box is connected with an air intake pipe, and the air intake pipe is located above the tray 2; The front side of the fixed box is detachably connected with a movable plate, a filter plate is arranged inside the fixed box, a collecting groove in contact with the right side of the filter plate is arranged on the bottom inner wall of the fixed box, and the fixed box is connected with a transmission assembly.

[0006] As a preferred solution of the swing-arm type workpiece pallet automatic exchange device described in the present invention, the driving assembly includes two gear rods with the same structure, the two gear rods are respectively meshed and connected with the left sides of the two driven gears, a support frame is arranged on the mounting rod, a motor is arranged on the support frame, a connecting shaft is arranged on the output shaft of the motor, and a driving gear is arranged on the connecting shaft.

[0007] As a preferred solution of the swing arm type workpiece pallet automatic exchange device described in the present invention, the top gear rod is meshed and connected with the left side of the driving gear, and the bottom gear rod is meshed and connected with the right side of the driving gear.

[0008] As a preferred solution of the swing arm type workpiece pallet automatic exchange device described in the present invention, wherein: the mounting rod is provided with two guide slots with the same structure, and the two gear rods are slidably connected to the two guide slots respectively.

[0009] As a preferred solution of the swing arm type workpiece pallet automatic exchange device described in the present invention, a vertical rod vertically penetrates the top of the fixed box, a scraper is provided at the bottom of the vertical rod, and the left side of the scraper is in contact with the filter plate.

[0010] As a preferred solution of the swing-arm type workpiece pallet automatic exchange device described in the present invention, the transmission assembly includes a connecting frame arranged on the top of the fixed box, a driving shaft and a driven shaft are connected to the connecting frame through bearings, a driven sprocket is arranged on the driving shaft, a driving sprocket is arranged on the connecting shaft, and the driving sprocket is higher than the left gear rod, and a chain is arranged between the driving sprocket and the driven sprocket.

[0011] As a preferred solution of the swing arm type workpiece pallet automatic exchange device described in the present invention, wherein: a driven bevel gear is arranged on the driven shaft, and the driven bevel gear is meshedly connected with an active bevel gear arranged on the active shaft, and the radius of the active bevel gear is larger than the radius of the driven bevel gear.

[0012] As a preferred solution of the swing arm type workpiece pallet automatic exchange device described in the present invention, a rotating plate is arranged on the driven shaft, and a connecting rod is connected to the right eccentric part of the rotating plate through a pin shaft.

[0013] As a preferred solution of the swing arm type workpiece pallet automatic exchange device described in the present invention, the connecting rod and the vertical rod are connected by a pin shaft.

[0014] A method for exchanging a swing arm type workpiece pallet automatic exchange device, specifically comprising the following steps: Step 1: Install the base on the processing machine tool. The position of pallet 1 is the workpiece processing area, and the position of pallet 2 is the workpiece waiting for processing area, that is, the disassembly and assembly area. After the workpiece on pallet 1 is processed, start the motor, and the motor drives the connecting shaft to rotate, so that the connecting shaft drives the driving gear to rotate clockwise, which can drive the left gear rod to move backward, and the right gear rod to move forward, so that the top driven gear drives the rotating shaft 2 to rotate clockwise, and the bottom driven gear drives the rotating shaft 1 to rotate counterclockwise by the same angle, so that the height of pallet 2 can be lowered by the electric push rod, and then pallet 1 can be rotated to the waiting area. After pallet 2 rotates to the processing area, it can be raised by the electric push rod; Step 2: Use the electric telescopic rod to drive the clamp to move and remove the workpiece on tray one, then turn on the fan, so that the suction pipe absorbs the debris left on tray one during processing, and the debris is filtered through the filter plate in the fixed box, so that the debris falls into the collection tank. After the extraction is completed, turn off the fan, and then install the new workpiece on tray one and wait for the workpiece on tray two to be processed and then replaced; Step 3: After the workpiece on pallet 2 is processed, pallet 2 is moved back to the processing area and pallet 1 is moved back to the processing area. During the exchange process, the motor drives the driving gear to rotate, so that the driving sprocket drives the driven sprocket to rotate through the chain, which can drive the driving shaft and the driving bevel gear to rotate, so that the driven bevel gear rotates accordingly, and the driven shaft drives the rotating plate to rotate. When the motor drives pallet 1 and pallet 2 to exchange positions, the driven bevel gear, the driven shaft and the rotating plate are driven to rotate exactly one circle, so that the vertical rod can drive the scraper to move downward and then reset upward, so as to push the debris attached to the right side of the filter plate when the dust is extracted into the collection tank, so that the filter plate can be automatically cleaned during each exchange of positions, so that when the fan is used to vacuum after the positions are exchanged, the ventilation efficiency of the filter plate can be guaranteed.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. After the workpiece on pallet 1 is processed, the motor is started, and the motor drives the connecting shaft to rotate, so that the connecting shaft drives the driving gear to rotate clockwise to drive the left gear bar to move backward, and the right gear bar to move forward, so that the top driven gear drives the rotating shaft 2 to rotate clockwise, and the bottom driven gear drives the rotating shaft 1 to rotate counterclockwise by the same angle, so that the height of pallet 2 is first lowered by the electric push rod, and pallet 1 can be rotated to the processing area. After pallet 2 rotates to the processing area, it can be raised by the electric push rod, and then the exchange action of pallet 1 and pallet 2 is realized through the drive component, which can realize the automatic exchange of the workpiece to be processed and the processed workpiece; 2. The clamping block is driven by the electric telescopic rod to move and remove the workpiece on the tray one, and then the fan is turned on to make the suction pipe absorb the debris remaining on the tray one during processing, and the debris is filtered through the filter plate in the fixed box so that the debris falls into the collection tank. After the workpiece on the tray two is processed, similarly, the tray two is moved back to the waiting area for processing, and the tray one is moved back to the processing area. During the exchange process, the motor drives the driving gear to rotate, so that the driving sprocket drives the driven sprocket to rotate through the chain, so that the driven shaft drives the rotating plate to rotate. When the motor drives the tray one and the tray two to exchange positions, the driven bevel gear, the driven shaft and the rotating plate are driven to rotate exactly one circle, so that the vertical rod can drive the scraper to move downward and then reset upward, so as to push the debris attached to the right side of the filter plate when the dust is extracted into the collection tank, so that the filter plate can be automatically cleaned during each exchange of positions, so that the ventilation efficiency of the filter plate can be guaranteed when the fan is used to vacuum after the positions are exchanged. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of a swing arm type workpiece pallet automatic exchange device and an exchange method thereof according to the present invention; Figure 2 It is a structural schematic diagram of pallet 1 and pallet 2 described in a swing arm type workpiece pallet automatic exchange device and an exchange method thereof of the present invention; Figure 3 It is an enlarged schematic diagram of the guide slot structure described in a swing arm type workpiece pallet automatic exchange device and an exchange method thereof of the present invention; Figure 4 A schematic diagram of the structure of a motor and a connecting shaft described in a swing arm type workpiece pallet automatic exchange device and an exchange method thereof of the present invention; Figure 5 It is an enlarged schematic diagram of the driving gear structure described in a swing arm type workpiece pallet automatic exchange device and an exchange method thereof of the present invention; Figure 6 It is a schematic diagram of the internal structure of the fixed box described in the swing arm type workpiece pallet automatic exchange device and the exchange method thereof of the present invention; Figure 7 It is an enlarged schematic diagram of the transmission assembly structure described in a swing-arm type workpiece pallet automatic exchange device and an exchange method thereof of the present invention.

[0017] In the figure: 1, base; 2, mounting rod; 3, rotating shaft 1; 4, rotating shaft 2; 5, swing arm 1; 6, swing arm 2; 7, tray 1; 8, electric push rod; 9, tray 2; 10, mounting block; 11, electric telescopic rod; 12, clamping block; 13, driven gear; 14, gear rod; 15, guide groove; 16, support frame; 17, motor; 18, connecting shaft; 19, driving gear; 20, driving sprocket; 21, mounting frame; 22, fan; 23, fixed box; 24, suction pipe; 25, movable plate; 26, filter plate; 27, collecting tank; 28, vertical rod; 29, scraper; 30, connecting rod; 31, rotating plate; 32, driven shaft; 33, connecting frame; 34, driving shaft; 35, driving bevel gear; 36, driven bevel gear; 37, driven sprocket; 38, chain. DETAILED DESCRIPTION

[0018] 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.

[0019] As mentioned in the background technology, in the prior art, two pallets are generally exchanged by manually moving them, which is inefficient and leaves debris generated during processing on the pallet leaving the processing area, which affects the subsequent loading of unprocessed workpieces on the pallet. The present invention provides a swing arm type workpiece pallet automatic exchange device and an exchange method thereof. Example

[0020] Reference Figures 1 to 7 , a swing arm type workpiece pallet automatic exchange device, comprising, a base 1, a mounting rod 2 is arranged on the base 1; The bottom of the mounting rod 2 is connected to a rotating shaft 1 3 via a bearing, and the top of the mounting rod 2 is connected to a rotating shaft 2 4 via a bearing, and the axes of the rotating shaft 1 3 and the rotating shaft 2 4 coincide with each other; A swing arm 1 5 is provided on the rotating shaft 1 3, and a swing arm 2 6 is provided on the rotating shaft 2 4; A tray 7 is installed on the top of the swing arm 6, an electric push rod 8 is installed on the bottom of the swing arm 5, and a tray 2 9 is installed on the output end of the electric push rod 8. The electric push rod 8 is used to adjust the height of the tray 2 9 so that it does not hinder each other when exchanging positions with the tray 1 7. After exchanging positions, the electric push rod 8 can be used to adjust it back to the same height; The tray 1 7 and the tray 2 9 are evenly provided with mounting blocks 10, and the mounting blocks 10 are provided with electric telescopic rods 11, and the output ends of the electric telescopic rods 11 are provided with clamping blocks 12 for clamping workpieces; The rotating shaft 1 3 and the rotating shaft 2 4 are both provided with driven gears 13, and the mounting rod 2 is provided with a driving assembly, which is connected to the driven gears 13 on both sides; A transmission component is arranged on the driving component; The base 1 is provided with a mounting frame 21, and the mounting frame 21 is provided with a fan 22 and a fixed box 23, the air inlet of the fan 22 is connected with the fixed box 23, the fixed box 23 is connected with an air suction pipe 24, and the air suction pipe 24 is located above the tray 2 9, so that when the processed workpiece is moved to the processing area and removed, the fan 22 can be turned on to allow the air suction pipe 24 to absorb the debris; The front side of the fixed box 23 is detachably connected with a movable plate 25, which is convenient for cleaning the interior of the fixed box 23 after removal. A filter plate 26 is arranged inside the fixed box 23, and a collection groove 27 in contact with the right side of the filter plate 26 is arranged on the bottom inner wall of the fixed box 23. After the debris enters the fixed box 23 through the suction pipe 24, it is filtered by the filter plate 26, so that the debris falls into the collection groove 27, and the debris is attached to the right side surface of the filter plate 26. The fixed box 23 is connected to the transmission assembly.

[0021] The driving assembly includes two gear rods 14 with the same structure, and the two gear rods 14 are respectively meshed and connected with the left sides of the two driven gears 13. A support frame 16 is arranged on the mounting rod 2, and a motor 17 is arranged on the support frame 16. A connecting shaft 18 is arranged on the output shaft of the motor 17, and a driving gear 19 is arranged on the connecting shaft 18, wherein the top gear rod 14 is meshed and connected with the left side of the driving gear 19, and the bottom gear rod 14 is meshed and connected with the right side of the driving gear 19. Before exchanging positions, the height of the tray 2 9 is first adjusted by the electric push rod 8, and then the motor 17 drives the connecting shaft 18 to rotate, so that the connecting shaft 18 drives the driving gear 19 to rotate clockwise to drive the left gear rod 14 to move backward, and the right gear rod 14 to move forward, so that the top driven gear 13 drives the rotating shaft 2 4 to rotate clockwise, and the bottom driven gear 13 drives the rotating shaft 1 3 to rotate counterclockwise by the same angle, so that the swing arm 1 5 rotates backward and the swing arm 2 6 rotates forward to exchange positions.

[0022] The mounting rod 2 is provided with two guide slots 15 of the same structure, and the two gear rods 14 are respectively slidably connected to the two guide slots 15 for guiding the gear rods 14 so that the gear rods 14 can only move in the front-rear direction.

[0023] A vertical rod 28 vertically penetrates the top of the fixed box 23, and a scraper 29 is provided at the bottom of the vertical rod 28. The left side of the scraper 29 contacts the filter plate 26. The scraper 29 is driven downward by the vertical rod 28 to push down the debris attached to the right side of the filter plate 26.

[0024] The transmission assembly includes a connecting frame 33 arranged on the top of the fixed box 23, and a driving shaft 34 and a driven shaft 32 are connected to the connecting frame 33 through bearings. A driven sprocket 37 is arranged on the driving shaft 34, and a driving sprocket 20 is arranged on the connecting shaft 18. The driving sprocket 20 is higher than the left gear rod 14, so that the chain 38 does not interfere with the gear rod 14. A chain 38 is arranged between the driving sprocket 20 and the driven sprocket 37. When the motor 17 drives the connecting shaft 18 to rotate, the driving sprocket 20 drives the driven sprocket 37 to rotate through the chain 38, so that the driving shaft 34 rotates.

[0025] A driven bevel gear 36 is provided on the driven shaft 32, and the driven bevel gear 36 is meshedly connected with a driving bevel gear 35 provided on the driving shaft 34, and the radius of the driving bevel gear 35 is greater than the radius of the driven bevel gear 36. The driving bevel gear 35 drives the driven bevel gear 36 to rotate, and can drive the driven bevel gear 36 to rotate at a larger angle, so that the driven shaft 32 can be driven to rotate one circle when exchanging positions.

[0026] A rotating plate 31 is disposed on the driven shaft 32 . A connecting rod 30 is connected to an eccentric portion of the right side of the rotating plate 31 via a pin shaft. The driven shaft 32 drives the rotating plate 31 to rotate. Example

[0027] Reference Figure 6 to Figure 7 The connecting rod 30 is connected to the vertical rod 28 by a pin shaft, so that when the connecting rod 30 rotates with the rotating plate 31, the vertical rod 28 is driven to move back and forth.

[0028] The rest of the structure is the same as that of Example 1.

[0029] A method for exchanging a swing arm type workpiece pallet automatic exchange device, using a swing arm type workpiece pallet automatic exchange device in Example 2, specifically comprising the following steps: Step 1: Install the base 1 on the processing machine tool. The position of the pallet 1 7 is the workpiece processing area, and the position of the pallet 2 9 is the workpiece waiting for processing area, that is, the disassembly and assembly area. After the workpiece on the pallet 1 7 is processed, start the motor 17. The motor 17 drives the connecting shaft 18 to rotate, so that the connecting shaft 18 drives the driving gear 19 to rotate clockwise, which can drive the left gear rod 14 to move backward, and the right gear rod 14 to move forward, so that the top driven gear 13 drives the rotating shaft 2 4 to rotate clockwise, and the bottom driven gear 13 drives the rotating shaft 1 3 to rotate counterclockwise by the same angle, so that the height of the pallet 2 9 is first lowered by the electric push rod 8, and then the pallet 1 7 can be rotated to the waiting area for processing. After the pallet 2 9 rotates to the processing area, it can be raised by the electric push rod 8; Step 2: Use the electric telescopic rod 11 to drive the clamping block 12 to move and remove the workpiece on the tray 1 7, then turn on the fan 22, so that the suction pipe 24 absorbs the debris left on the tray 1 7 during processing, and the debris is filtered by the filter plate 26 in the fixed box 23, so that the debris falls into the collection tank 27. After the extraction is completed, turn off the fan 22, and then install a new workpiece on the tray 1 7 and wait for the workpiece on the tray 2 9 to be processed and then replaced; Step 3: After the workpiece on tray 2 9 is processed, tray 2 9 is moved back to the processing area and tray 1 7 is moved back to the processing area. During the exchange process, the motor 17 drives the driving gear 19 to rotate, so that the driving sprocket 20 drives the driven sprocket 37 to rotate through the chain 38, which can drive the driving shaft 34 and the driving bevel gear 35 to rotate, so that the driven bevel gear 36 rotates accordingly, and the driven shaft 32 drives the rotating plate 31 to rotate. When the motor 17 drives tray 1 7 and tray 2 9 to exchange positions, the driven bevel gear 36, the driven shaft 32 and the rotating plate 31 are driven to rotate exactly one circle, so that the vertical rod 28 can drive the scraper 29 to move downward and then reset upward, so as to push the debris attached to the right side of the filter plate 26 when the dust is extracted into the collecting groove 27, so that the filter plate 26 can be automatically cleaned during each exchange of positions, so that when the fan 22 is used to vacuum after the positions are exchanged, the ventilation efficiency of the filter plate 26 can be guaranteed.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A swing arm type workpiece pallet automatic exchange device, characterized in that: include, A base (1), wherein a mounting rod (2) is provided on the base (1); The bottom of the mounting rod (2) is connected to a first rotating shaft (3) via a bearing, and the top of the mounting rod (2) is connected to a second rotating shaft (4) via a bearing, and the axes of the first rotating shaft (3) and the second rotating shaft (4) coincide with each other; The first rotating shaft (3) is provided with a first swing arm (5), and the second rotating shaft (4) is provided with a second swing arm (6); A tray one (7) is mounted on the top of the second swing arm (6), an electric push rod (8) is mounted on the bottom of the first swing arm (5), and a tray two (9) is mounted on the output end of the electric push rod (8); The tray one (7) and the tray two (9) are evenly provided with mounting blocks (10), and the mounting blocks (10) are each provided with an electric telescopic rod (11), and the output end of the electric telescopic rod (11) is each provided with a clamping block (12); The first rotating shaft (3) and the second rotating shaft (4) are both provided with driven gears (13), and the mounting rod (2) is provided with a driving assembly, wherein the driving assembly is connected to the driven gears (13) on both sides; The driving assembly is provided with a transmission assembly; The base (1) is provided with a mounting frame (21), and a fan (22) and a fixing box (23) are provided on the mounting frame (21), an air inlet of the fan (22) is connected to the fixing box (23), the fixing box (23) is connected to an air intake pipe (24), and the air intake pipe (24) is located above the second tray (9); The front side of the fixed box (23) is detachably connected to a movable plate (25), a filter plate (26) is arranged inside the fixed box (23), a collecting groove (27) in contact with the right side of the filter plate (26) is arranged on the bottom inner wall of the fixed box (23), and the fixed box (23) is connected to a transmission assembly; The driving assembly comprises two gear rods (14) of identical structure, the two gear rods (14) being meshedly connected with the left sides of two driven gears (13) respectively, a support frame (16) being arranged on the mounting rod (2), a motor (17) being arranged on the support frame (16), a connecting shaft (18) being arranged on the output shaft of the motor (17), and a driving gear (19) being arranged on the connecting shaft (18).

2. The swing arm type workpiece pallet automatic exchange device according to claim 1 is characterized in that: The top gear rod (14) is meshedly connected to the left side of the driving gear (19), and the bottom gear rod (14) is meshedly connected to the right side of the driving gear (19).

3. The swing arm type workpiece pallet automatic exchange device according to claim 1 is characterized in that: The mounting rod (2) is provided with two guide slots (15) of the same structure, and the two gear rods (14) are respectively slidably connected to the two guide slots (15).

4. The swing arm type workpiece pallet automatic exchange device according to claim 1 is characterized in that: A vertical rod (28) vertically penetrates the top of the fixed box (23), a scraper (29) is provided at the bottom of the vertical rod (28), and the left side of the scraper (29) is in contact with the filter plate (26).

5. The swing arm type workpiece pallet automatic exchange device according to claim 4 is characterized in that: The transmission assembly comprises a connecting frame (33) arranged on the top of the fixed box (23); a driving shaft (34) and a driven shaft (32) are connected to the connecting frame (33) via bearings; a driven sprocket (37) is arranged on the driving shaft (34); a driving sprocket (20) is arranged on the connecting shaft (18); the driving sprocket (20) is higher than the left toothed rod (14); and a chain (38) is arranged between the driving sprocket (20) and the driven sprocket (37).

6. The swing arm type workpiece pallet automatic exchange device according to claim 5 is characterized in that: A driven bevel gear (36) is provided on the driven shaft (32), and the driven bevel gear (36) is meshingly connected with a driving bevel gear (35) provided on the driving shaft (34), and the radius of the driving bevel gear (35) is greater than the radius of the driven bevel gear (36).

7. The swing arm type workpiece pallet automatic exchange device according to claim 5 is characterized in that: A rotating plate (31) is provided on the driven shaft (32), and a connecting rod (30) is connected to the right eccentric portion of the rotating plate (31) via a pin.

8. The swing arm type workpiece pallet automatic exchange device according to claim 7 is characterized in that: The connecting rod (30) and the vertical rod (28) are connected via a pin shaft.

9. The method for exchanging a swing arm type workpiece pallet automatic exchange device according to any one of claims 1 to 8, characterized in that: The method comprises the following steps: Step 1: The base (1) is mounted on a processing machine tool. The position of the pallet 1 (7) is the workpiece processing area, and the position of the pallet 2 (9) is the workpiece waiting area for processing, i.e., the disassembly and assembly area. After the workpiece on the pallet 1 (7) is processed, the motor (17) is started. The motor (17) drives the connecting shaft (18) to rotate, so that the connecting shaft (18) drives the driving gear (19) to rotate clockwise, thereby driving the left gear rod (14) to move backward and the right gear rod (14) to move forward, so that the top driven gear (13) drives the rotating shaft 2 (4) to rotate clockwise, and the bottom driven gear (13) drives the rotating shaft 1 (3) to rotate counterclockwise by the same angle, so that the height of the pallet 2 (9) is first lowered by the electric push rod (8), and then the pallet 1 (7) can be rotated to the waiting area for processing. After the pallet 2 (9) rotates to the processing area, it can be raised by the electric push rod (8); Step 2: The clamping block (12) is driven by the electric telescopic rod (11) to move and remove the workpiece on the tray one (7), and then the fan (22) is turned on, so that the suction pipe (24) absorbs the debris remaining on the tray one (7) during processing, and the debris is filtered by the filter plate (26) in the fixed box (23) so that the debris falls into the collection tank (27). After the extraction is completed, the fan (22) is turned off, and then a new workpiece is placed on the tray one (7) and the workpiece on the tray two (9) can be replaced after the processing is completed; Step 3: After the workpiece on the pallet 2 (9) is processed, the pallet 2 (9) is similarly moved back to the waiting area for processing, and the pallet 1 (7) is moved back to the processing area. During the exchange process, the motor (17) drives the driving gear (19) to rotate, so that the driving sprocket (20) drives the driven sprocket (37) to rotate through the chain (38), which can drive the driving shaft (34) and the driving bevel gear (35) to rotate, so that the driven bevel gear (36) rotates accordingly, so that the driven shaft (32) drives the rotating plate (31) to rotate, and the motor (17) drives the pallet When the positions of the first (7) and the second (9) tray are exchanged, the driven bevel gear (36), the driven shaft (32) and the rotating plate (31) are driven to rotate exactly one circle, so that the vertical rod (28) can drive the scraper (29) to move downward and then reset upward, so that the debris attached to the right side of the filter plate (26) when the dust is extracted is pushed into the collection groove (27), so that the filter plate (26) can be automatically cleaned during each exchange of positions, so that when the fan (22) is used to suck dust after the exchange of positions, the ventilation efficiency of the filter plate (26) can be guaranteed.

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