Bending device for excavator machining and method thereof

Abstract

This invention belongs to the field of bending processing technology, specifically a bending device and method for excavator processing; it includes a processing table; an upper die; and a lower die; the upper die is a punch, and the lower die is a die, with the punch and die arranged opposite to each other; a relative pressure device is provided on the processing table; the relative pressure device includes side baffles installed on the top edge of the processing table; the two side baffles are symmetrically arranged; a support base block, both connected to the sides of the upper and lower dies; a positioning block installed on the side of the support base block near the top of the processing table; a guide cylinder connected to the top of the processing table; and a guide rectangular frame connected through the end of the guide cylinder away from the processing table; the guide rectangular frame and the guide cylinder are slidably engaged; the upper and lower dies can be replaced simultaneously without the need for separate disassembly and assembly, which not only reduces die replacement time and improves disassembly and assembly efficiency, but also makes the device convenient for processing parts with different bending shapes, ultimately ensuring the overall performance.

Description

Technical Field

[0001] This invention belongs to the field of bending processing technology, specifically a bending device and method for excavator processing. Background Technology

[0002] Many parts of excavators need to be processed into specific bending shapes to meet the requirements of structural strength, spatial adaptability and functional realization. The existing bending device used for processing excavator parts cannot replace the upper and lower molds at the same time. They need to be disassembled and assembled one by one. This not only prolongs the mold replacement time and reduces the disassembly and assembly efficiency, but also makes it difficult for the device to conveniently process parts with different bending shapes, ultimately affecting the overall use effect. Summary of the Invention

[0003] In view of the above situation and to overcome the defects of the prior art, the present invention provides a bending device and method for excavator processing, which effectively solves the problems in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a bending device for excavator processing, comprising a processing table; an upper die; and a lower die; the upper die is a punch, and the lower die is a die, the punch and die being arranged opposite to each other; a relative pressure device is provided on the processing table for bending workpieces; the relative pressure device includes a side baffle installed on the top edge of the processing table; the two side baffles are symmetrically arranged. The support blocks are all connected to the sides of the upper and lower molds; The positioning block is installed on the side of the support base block near the top of the processing table; Guide cylinder, connected to the top of the machining table; A guide rectangular frame is connected through the guide cylinder at the end away from the processing table; the guide rectangular frame and the guide cylinder are in sliding fit; the two guide rectangular frames are located at different heights, and the upper mold and the lower mold are located in the two guide rectangular frames respectively; the side of the guide rectangular frame away from the top of the processing table is located on the moving path of the support base block; A positioning and locking assembly is disposed on a guide frame; the positioning and locking assembly is used to install and remove the upper mold / lower mold onto the guide frame; the positioning and locking assembly includes a positioning slot, which is disposed through the guide frame on the side away from the top of the processing table; the positioning slot fits into the positioning block, and the two slide together; A corresponding actuator is disposed on the side baffle; the corresponding actuator is used to simultaneously replace the upper mold and the lower mold; the corresponding actuator includes an actuator block located between the two side baffles; the top and bottom of the actuator block are connected to a positioning base plate.

[0005] Preferably, it includes a displacement chute, which is disposed on the opposite surfaces of the two side baffles; A partition plate is installed at the middle of the displacement groove; a telescopic cylinder is connected to the top and bottom of the partition plate; a displacement slider is connected to the output end of the telescopic cylinder; the displacement slider is fitted into the displacement groove, and the two slide in cooperation; the two displacement sliders located at the top and bottom of the partition plate are respectively connected to two guide frames.

[0006] Preferably, it includes a pressure-bearing sliding column, which is connected through the guide frame on the side away from the top of the processing table; the pressure-bearing sliding column is slidably engaged with the guide frame; A pressure-bearing rectangular block is installed at one end of the pressure-bearing sliding column near the top of the processing table; the pressure-bearing rectangular block has a rectangular groove in the middle, the size of which is larger than that of the upper mold and the lower mold; the side of the pressure-bearing rectangular block away from the top of the processing table is located on the moving path of the positioning insert; A pressure limiting plate is installed at the end of the pressure-bearing sliding column away from the pressure-bearing moment block; the pressure limiting plate is located at the top of the guide frame, and the pressure-bearing moment block is located at the bottom of the guide frame. A pressure spring is sleeved on a pressure-bearing sliding column; one end of the pressure spring is fixedly connected to a pressure-bearing limiting plate, and the other end is fixedly connected to a guide frame.

[0007] Preferably, it includes a retaining slot, which is disposed through the positioning insert on the side near the positioning substrate; A positioning slide post is connected through the positioning substrate to the side near the positioning block; the positioning slide post slides in conjunction with the positioning substrate. The positioning horizontal plate is installed at the end of the positioning slide near the positioning block; A positioning spring is sleeved on a positioning slide post; one end of the positioning spring is fixedly connected to the positioning base plate, and the other end is fixedly connected to the positioning cross plate. The positioning block is connected to the side of the positioning plate near the positioning block. After the positioning block passes through the positioning slot by a specified distance, the positioning slot is flush with the positioning block. After the positioning block passes through the guide frame near the side of the positioning plate, it is inserted into the positioning slot.

[0008] Preferably, it includes an directional base, installed on both sides of the actuator block; A directional cylinder is connected through the side of the side baffle; one end of the directional cylinder is connected to a directional pull plate, and the other end is fixedly connected to a directional base; the directional pull plate is located on the outside of the side baffle.

[0009] Preferably, it includes a T-shaped base, installed on the side of the side baffle near the actuator block; An actuating cylinder is connected to the T-shaped base on the side near the actuating block; the opening of the actuating cylinder faces the actuating block. An actuating cylinder is connected at one end to an actuating block and at the other end to an opening in an actuating cylinder; the actuating cylinder and the actuating cylinder are in sliding fit. A compression spring is disposed inside the actuating cylinder; one end of the compression spring is fixedly connected to the bottom surface inside the actuating cylinder, and the other end is fixedly connected to the actuating cylinder. A limiting groove is provided through the outer wall of the actuating cylinder; several limiting grooves are arranged at equal intervals.

[0010] Preferably, it includes a limiting square post, which is installed on the top of the T-shaped base; The limiting slider is connected to the limiting square post through the side near the limiting circular groove; the limiting square post and the limiting slider slide in a sliding fit. A limiting post is installed on the side of the limiting slider near the limiting groove; when the limiting post penetrates the outer wall of the actuator cylinder, it is engaged in one of the limiting grooves. A limiting spring is sleeved on a limiting square post; one end of the limiting spring is fixedly connected to a limiting slider, and the other end is connected to a limiting square plate, which is connected to the end of the limiting square post away from the T-shaped base.

[0011] Preferably, the limiting slider is provided with a self-locking stop; the self-locking stop includes a stop base, which is installed on both sides of the limiting slider; A stop cylinder is connected to the stop base on the side near the side baffle. A stop square plate is connected through to one end of the stop cylinder near the side baffle; the stop square plate and the stop cylinder are in sliding fit; a self-locking inclined block is installed on the side of the stop square plate near the side baffle; the self-locking inclined block has only a single inclined surface.

[0012] Preferably, the side baffle has several self-locking grooves arranged at equal intervals on the side near the actuator block; the self-locking grooves are adapted to the self-locking inclined blocks, and the inclined surfaces of both are facing away from the top of the processing table; the large surface of the self-locking inclined block is located at the edge of the side baffle near the actuator block; a stop spring is sleeved on the stop cylinder; one end of the stop spring is fixedly connected to the stop square plate, and the other end is fixedly connected to the stop base.

[0013] The present invention also provides a method for using a bending device for excavator processing, comprising the following steps: S1. Place the upper and lower dies that control the bending shape on the two guide frames respectively, so that the lower die, which is a concave die, and the upper die, which is a convex die, face each other. S2. By operating the same position actuator, the upper mold and the lower mold can be fixedly installed on the two guide frames at the same time. S3. When the upper / lower mold needs to be maintained during the use of the device, the upper / lower mold on the guide frame can be disassembled and installed separately using the positioning and locking components. S4. Place the workpiece between the upper and lower dies, and control the relative pressure device to bend the workpiece.

[0014] Compared with the prior art, the beneficial effects of the present invention are: (1) The retaining block moves away from the positioning block at the same time, and the limiting settings on the upper and lower molds are released. Under the action of the pressure spring, the upper and lower molds are ejected at the same time, so as to complete the disassembly operation of the upper and lower molds simultaneously. When the upper and lower molds need to be installed at the same time, they only need to be placed on the two guide frames. Then, by pushing the directional pull plate back, the compression spring in the buffer state is reset, which drives the actuator block to reset and move. The positioning base plate at the top and bottom drives the positioning locking assembly to reset and move. The positioning block on it is used to limit the upper and lower molds placed on the two guide frames at the same time, so as to complete the installation operation of the upper and lower molds at the same time, avoiding the need for the staff to install the upper and lower molds separately. The installation and disassembly of the molds improves the efficiency of the upper and lower mold assembly and disassembly, while reducing the workload of the workers. The replacement of the upper and lower molds is started and completed simultaneously, eliminating the need to replace one mold first and then the other. This allows the device to replace both molds at the same time without having to disassemble and assemble them separately. This not only reduces mold replacement time and improves assembly and disassembly efficiency, but also enables the device to easily process parts with different bending shapes, ultimately ensuring the overall performance. Furthermore, the positioning and locking components allow for the individual replacement of the upper / lower molds on the guide frame, facilitating individual maintenance and preventing the other mold from dislodging during maintenance or replacement of a single mold, further enhancing the safety of the device. (2) During the installation of the upper / lower mold, the positioning block on it moves within the positioning slot. After the positioning block passes through the positioning slot, it contacts the bearing block at the bottom of the guide frame, causing the bearing slide on it to move at the upper limit of the guide frame. This puts the bearing spring in a buffer state, and the resulting damping force is used to control the descent speed of the positioning block, preventing the upper / lower mold from falling too fast during installation and causing it to collide with other parts of the device and be damaged. This improves the safety of the device and the installation stability of the upper and lower molds, making it more stable. The service life is guaranteed; when the upper / lower mold is fixed on the guide frame, it means that the positioning block has been limited by the retaining block, so that the pressure spring in the buffer state cannot be reset. The resulting elastic force will act on the positioning block through the guide frame, thereby increasing the friction and strength between the retaining slot and the retaining block. This avoids the retaining block from being dislodged or shaking due to non-human factors when limiting the positioning block, which would affect the use of the upper / lower mold. This improves the use effect of the device and the installation effect of the upper and lower molds, thereby reducing the limitations of the device. (3) After placing the workpiece, i.e. the metal plate to be bent, between the upper and lower molds, activate the two telescopic cylinders located at the top and bottom of the partition plate, so that their output ends drive the displacement sliders to move within the displacement groove. The two displacement sliders are connected to two guide frames, which in turn drive the two guide frames to move relative to each other, so that the upper and lower molds move closer to the workpiece and until they contact each other, so that the upper and lower molds fit together, so that the workpiece is embedded in the lower mold, i.e. the concave mold, and the workpiece is bent, thus completing the bending operation of the workpiece and forming the parts used for excavator processing; it is worth mentioning that when the guide frames drive When the upper or lower die moves, it moves to the upper limit of the guide cylinder to limit and position the movement of the upper / lower die, preventing instability or dislocation during movement. This improves the stability of the upper / lower die movement, ensuring the bending and shaping accuracy of the workpiece and further enhancing the bending effect of the device. It is worth mentioning that the upper and lower dies move relative to each other to bend the workpiece, making the stress on the sheet metal / workpiece more uniform, effectively reducing bending springback and surface scratches, ensuring high precision and consistency of bending angles and radii, further improving the device's performance, increasing bending efficiency, and ensuring the bending effect. (4) After the device completes the installation of the upper mold and the lower mold at the same time, the limit slider that was originally pulled upward is released. The limit slider is reset and moved by the reset of the limit spring, so that the limit column on it passes through the execution cylinder and is connected to one of the limit grooves. This is used to limit the execution cylinder and prevent the position locking component from moving due to non-human factors, which would cause the upper or lower mold to shift during use. This further improves the safety of the device during use and also improves the installation effect of the upper and lower molds. (5) When the limit slider moves to the specified distance, no more tension is applied to the limit slider, so that the limit spring wants to reset. The force acts on the self-locking inclined block, which wants to reset. However, since the self-locking inclined block is located in the self-locking groove, the two are in plane contact, so the self-locking inclined block cannot move. This limits the limit slider to the current position, so that the operator can focus on the installation of the upper / lower mold. This means that the limit slider can only move in one direction, which avoids the actuator block on the same position actuator being unable to move due to the reset of the limit slider when disassembling and assembling two molds at the same time. This reduces the limitations of the device. At the same time, it further reduces the workload of the operator, so that the operator can concentrate on operating the same position actuator to disassemble and assemble two molds at the same time, which further improves the effectiveness of the device. It is worth mentioning that the direction of the inclined surface on the self-locking inclined groove can be changed according to different needs to control the unidirectional movement of the limit slider in different directions. This can be used to avoid the limit column being displaced or dislodged due to non-human factors when limiting the actuator block, which further reduces the limitations of the device. (6) By lowering the upper / lower mold, the positioning block moves within the positioning slot until the support base on the positioning block contacts the top of the guide frame to support the upper / lower mold. This eliminates the need for workers to continue supporting the mold, reducing their workload. When the support base on the upper / lower mold contacts the top of the guide frame, the positioning block on the support base moves to the specified distance within the positioning slot. This makes the fixing slot on the positioning block flush with the fixing block, indicating that the upper / lower mold has reached the installation position on the guide frame. At this point, the original outward-pulling positioning slide is released. The column resets the originally buffered positioning spring, causing the positioning horizontal plate on the positioning slide to move back to its original position on the positioning base plate. This allows the positioning block on the positioning horizontal plate to pass through the guide frame and insert into the positioning slot, thus limiting the positioning block and completing the installation of the upper / lower mold. This fixes the upper / lower mold on the guide frame, preventing dislocation or displacement of the upper and lower molds due to non-human factors during use. This improves the bending effect of the device, ensuring the bending accuracy of the upper and lower molds on the workpiece and further enhancing the overall performance of the device. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0016] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a front view of the mold of the present invention; Figure 3 This is a cross-sectional view of the guide rectangular frame of the present invention; Figure 4 This is a cross-sectional view of the displacement groove of the present invention; Figure 5 This is a front view of the partition plate of the present invention; Figure 6 This is an exploded view of the positioning insert block of the present invention; Figure 7 This is a schematic diagram of the directional tension plate structure of the present invention; Figure 8 This is a schematic diagram of the positioning slot structure of the present invention; Figure 9 This is a cross-sectional view of the retaining slot of the present invention; Figure 10 For the present invention Figure 4 A magnified schematic diagram of the structure at point A in the diagram; Figure 11 This is a front view of the bearing moment block of the present invention; Figure 12This is a side sectional view of the cylindrical part used in the present invention; In the diagram: 1. Machining table; 2. Upper mold; 3. Lower mold; 4. Side baffle; 5. Support block; 6. Positioning block; 7. Guide cylinder; 8. Guide rectangular frame; 9. Positioning slot; 10. Actuating block; 11. Positioning base plate; 12. Displacement slide; 13. Divider plate; 14. Telescopic cylinder; 15. Displacement slider; 16. Pressure-bearing slide column; 17. Pressure-bearing rectangular block; 18. Pressure-bearing limiting plate; 19. Pressure-bearing spring; 20. Fixing slot; 21. Positioning slide column; 22. Positioning horizontal plate; 3. Positioning spring; 24. Fixing block; 25. Orientation base; 26. Orientation cylinder; 27. Orientation pull plate; 28. T-shaped base; 29. ​​Actuating cylinder; 30. Actuating cylinder; 31. Compression spring; 32. Limiting circular groove; 33. Limiting square column; 34. Limiting slider; 35. Limiting column; 36. Limiting spring; 37. Limiting square plate; 38. Stopping base; 39. Stopping cylinder; 40. Stopping square plate; 41. Self-locking wedge block; 42. Self-locking wedge groove; 43. Stopping spring. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0018] Implementation examples, by Figures 1 to 12The present invention includes a processing table 1; an upper mold 2; and a lower mold 3. The upper mold 2 is a punch, and the lower mold 3 is a die, with the punch and die arranged opposite to each other. A relative pressure device is provided on the processing table 1 for bending workpieces. The relative pressure device includes side baffles 4, installed on the top edge of the processing table 1; the two side baffles 4 are symmetrically arranged; support base blocks 5, each connected to the side of the upper mold 2 and the lower mold 3; positioning inserts 6, installed on the side of the support base blocks 5 near the top of the processing table 1; a guide cylinder 7, connected to the top of the processing table 1; and a guide rectangular frame 8, penetrating and connected to the end of the guide cylinder 7 away from the processing table 1. The guide rectangular frame 8 is slidably fitted with the guide cylinder 7; the two guide rectangular frames 8 are located at different heights, and the upper mold 2 and the lower mold 3 are respectively located within the two guide rectangular frames 8. The side of the guide frame 8 away from the top of the processing table 1 is located on the moving path of the support base block 5; the positioning and locking assembly is set on the guide frame 8; the positioning and locking assembly is used to install and remove the upper mold 2 / lower mold 3 onto the guide frame 8; the co-position actuator is set on the side baffle 4; the co-position actuator is used to replace the upper mold 2 and the lower mold 3 at the same time; the displacement groove 12 is set on the opposite side of the two side baffles 4; the partition plate 13 is installed at the middle of the displacement groove 12; the top and bottom of the partition plate 13 are connected to the telescopic cylinder 14; the output end of the telescopic cylinder 14 is connected to the displacement slider 15; the displacement slider 15 is fitted into the displacement groove 12, and the two slide in cooperation; the two displacement sliders 15 located at the top and bottom of the partition plate 13 are respectively connected to the two guide frames 8; In use, the upper die 2 and lower die 3, which control the bending shape, are respectively mounted on two guide frames 8. The upper die 2 is a punch, and the lower die 3 is a die, facing each other. After placing the workpiece, i.e., the metal plate to be bent, between the upper die 2 and the lower die 3, the two telescopic cylinders 14 located at the top and bottom of the partition plate 13 are activated. Their output ends drive the displacement sliders 15 to move within the displacement grooves 12. The two displacement sliders 15 are respectively connected to the two guide frames 8, thereby driving the two guide frames 8 to move relative to each other. This causes the upper die 2 and the lower die 3 to move closer to the workpiece until they make contact, thus fitting the upper die 2 and the lower die 3 together. This allows the workpiece to be embedded in the lower die 3, i.e., the die, causing the workpiece to be bent, thereby completing the bending of the workpiece. The bending operation forms the parts used in excavator processing. It's worth noting that when the guide frame 8 moves the upper die 2 or lower die 3, it moves to the upper limit of the guide cylinder 7. This limits and positions the movement of the upper die 2 / lower die 3, preventing instability or dislocation during movement. This improves the stability of the upper die 2 / lower die 3 movement, ensuring the bending and shaping accuracy of the workpiece and further enhancing the bending effect of the device. It's also worth mentioning that the upper die 2 and lower die 3 move relative to each other when bending the workpiece, resulting in more even stress on the sheet metal / workpiece. This effectively reduces bending springback and surface scratches, ensuring high precision and consistency in bending angles and fillets, further improving the device's performance, increasing bending efficiency, and guaranteeing the bending effect.

[0019] The actuator in this embodiment includes an actuator block 10 located between two side baffles 4; a positioning base plate 11 is connected to the top and bottom of the actuator block 10; an orientation base 25 is installed on both sides of the actuator block 10; an orientation cylinder 26 is connected through the side of the side baffle 4; one end of the orientation cylinder 26 is connected to an orientation pull plate 27, and the other end is fixedly connected to the orientation base 25; the orientation pull plate 27 is located outside the side baffle 4; a T-shaped base 28 is installed on the side of the side baffle 4 near the actuator block 10; an execution cylinder 29 is connected to the T-shaped base 28 near the actuator block 10; the opening of the execution cylinder 29 faces the actuator block 10; an execution cylinder 30 is connected at one end to the actuator block 10, and the other end is fitted into the opening of the execution cylinder 29; the execution cylinder 29 and the execution cylinder 30 slide in cooperation; and a compression spring 31 is disposed on the execution cylinder 29. 9. Inside; one end of the compression spring 31 is fixedly connected to the inner bottom surface of the execution cylinder 29, and the other end is fixedly connected to the execution cylinder 30; a limiting circular groove 32 is provided through the outer wall of the execution cylinder 30; several limiting circular grooves 32 are arranged at equal intervals; a limiting square post 33 is installed on the top of the T-shaped base 28; a limiting slider 34 is connected through the limiting square post 33 on the side near the limiting circular groove 32; the limiting square post 33 and the limiting slider 34 are in sliding fit; a limiting column 35 is installed on the side of the limiting slider 34 near the limiting circular groove 32; when the limiting column 35 penetrates the outer wall of the execution cylinder 29, it is inserted into one of the limiting circular grooves 32; a limiting spring 36 is sleeved on the limiting square post 33; one end of the limiting spring 36 is fixedly connected to the limiting slider 34, and the other end is connected to a limiting square plate 37, which is connected to the end of the limiting square post 33 away from the T-shaped base 28; When the device is in use, pulling the limiting slider 34 upward causes it to move at the upper limit of the limiting column 33, putting the limiting spring 36 into a buffer state. This causes the limiting column 35 on the limiting slider 34 to disengage from the actuating cylinder 29 and no longer connect to one of the limiting grooves 32, thus releasing the limiting setting on the actuating cylinder 30. At this point, pulling the directional pull plate 27 outward causes the directional column 26 on it to move at the side baffle 4. Under the action of the directional base 25 on the directional column 26, the actuating block 10 moves, causing the actuating cylinder 30 on it to move within the actuating cylinder 29, thus putting the compression spring 31 into a buffer state. In the punching state, the positioning base plate 11 on the top and bottom of the actuator block 10 moves. The positioning locking component that mounts the upper mold 2 / lower mold 3 on the guide frame 8 is set on the positioning base plate 11. When the positioning base plate 11 moves, it simultaneously moves the positioning locking component, causing the fixing block 24 on it to move away from the positioning block 6 at the same time. This releases the limiting setting on the upper mold 2 and lower mold 3. Under the action of the pressure spring 19, the upper mold 2 and lower mold 3 are ejected at the same time, thus completing the disassembly operation of the upper mold 2 and lower mold 3 simultaneously. When it is necessary to install the upper mold 2 and lower mold 3 at the same time, simply place them on the guide frame 8. On the two guide frames 8, the directional pull plate 27 is pushed back, causing the compression spring 31 in the buffer state to reset, which in turn drives the actuator block 10 to reset and move. This causes the positioning base plate 11 at the top and bottom to reset and move, so that the positioning insert 6 on it is used to simultaneously limit the upper mold 2 and lower mold 3 placed on the two guide frames 8, thereby completing the installation operation of the upper mold 2 and lower mold 3 at the same time. This avoids the need for workers to install and disassemble the upper mold 2 and lower mold 3 separately, improving the efficiency of the installation and disassembly of the upper mold 2 and lower mold 3, and reducing the workload of workers. The replacement of mold 2 and lower mold 3 is started and completed simultaneously, without the need to replace one first and then the other. This allows the device to replace both molds at the same time without having to disassemble and reassemble them separately. This not only reduces mold replacement time and improves disassembly and assembly efficiency, but also enables the device to easily process parts with different bending shapes, ultimately ensuring the overall performance. Furthermore, the positioning and locking components allow for the individual replacement of the upper mold 2 and lower mold 3 on the guide frame 8, facilitating individual maintenance and preventing the other mold from dislodging during maintenance or replacement of a single mold, further enhancing the safety of the device. It is worth mentioning that after the device completes the installation of the upper mold 2 and the lower mold 3, the limit slider 34 that was originally pulled upward is released. The limit spring 36 resets the limit slider 34, causing it to move back to its original position. This allows the limit column 35 on the limit column 35 to pass through the execution cylinder 29 and connect to one of the limit grooves 32. This is used to limit the execution column 30, preventing the positioning and locking components from moving due to non-human factors and causing displacement of the upper mold 2 or the lower mold 3 during use. This further improves the safety of the device during use and also enhances the installation effect of the upper mold 2 and the lower mold 3.

[0020] The positioning and locking assembly of this embodiment includes a positioning slot 9, which is disposed through the guide rectangular frame 8 on the side away from the top of the processing table 1; the positioning slot 9 is fitted with the positioning insert 6, and the two are slidably engaged; a pressure-bearing slide column 16 is connected through the guide rectangular frame 8 on the side away from the top of the processing table 1; the pressure-bearing slide column 16 is slidably engaged with the guide rectangular frame 8; a pressure-bearing block 17 is installed at the end of the pressure-bearing slide column 16 near the top of the processing table 1; the pressure-bearing block 17 has a rectangular groove in the middle, the size of which is larger than the upper mold 2 and the lower mold 3; the side of the pressure-bearing block 17 away from the top of the processing table 1 is located on the moving path of the positioning insert 6; a pressure-bearing limiting plate 18 is installed at the end of the pressure-bearing slide column 16 away from the pressure-bearing block 17; the pressure-bearing limiting plate 18 is located at the top of the guide rectangular frame 8, and the pressure-bearing block 17 is located at the bottom of the guide rectangular frame 8; a pressure-bearing spring 19 is sleeved on the pressure-bearing slide column 16; the pressure-bearing spring 19 is sleeved on the pressure-bearing slide column 16; the pressure-bearing spring 19 is sleeved on the guide rectangular frame 8. One end of the positioning block 6 is fixedly connected to the pressure limiting plate 18, and the other end is fixedly connected to the guide frame 8; the positioning slot 20 is disposed through the positioning insert 6 near the positioning base plate 11; the positioning slide 21 is connected through the positioning base plate 11 near the positioning insert 6; the positioning slide 21 is slidably engaged with the positioning base plate 11; the positioning horizontal plate 22 is installed on the positioning slide 21 near the positioning insert 6; the positioning spring 23 is sleeved on the positioning slide 21; one end of the positioning spring 23 is fixedly connected to the positioning base plate 11, and the other end is fixedly connected to the positioning horizontal plate 22; the positioning insert 24 is connected to the positioning horizontal plate 22 near the positioning insert 6; when the positioning insert 6 passes through the positioning slot 9 by a specified distance, the positioning slot 20 is flush with the positioning insert 24, and the positioning insert 24 passes through the guide frame 8 near the positioning horizontal plate 22 and is inserted into the positioning slot 20; Because many parts of the excavator need to be processed into specific bending shapes, it is necessary to change the upper mold 2 and lower mold 3 according to different bending shapes. When the upper mold 2 needs to be disassembled, the positioning slide column 21 is pulled outward, causing it to move at the upper limit of the positioning base plate 11. This puts the positioning spring 23 in a buffer state, which in turn causes the positioning cross plate 22 on the positioning slide column 21 to move away from the guide frame 8. This causes the fixing block 24 on the positioning cross plate 22 to disengage from the guide frame 8 and also to no longer be connected to one of the fixing slots 20. This releases the limiting setting on the positioning block 6, so that the fixing block 24 is no longer located in the positioning slot 9. This causes the pressure spring 19, which was originally in a buffer state, to be unrestricted and reset. This, in turn, causes the pressure block 17 to reset and move, so that its reset force acts on the positioning block 6, pushing it out of the positioning slot 9. This ejects the upper mold 2 / lower mold 3 from the guide frame 8, completing the disassembly operation of the upper mold 2 / lower mold 3. After selecting the appropriate mold shape for bending, i.e., the upper mold 2 / lower mold 3, it is placed in the guide frame 8, aligning the positioning block 6 on the upper mold 2 / lower mold 3 with the positioning slot 9 on the guide frame 8. By moving the upper mold 2 / lower mold 3 downwards, the positioning block 6 is positioned within the positioning slot 9. The movement continues until the support base 5 on the positioning block 6 contacts the top of the guide frame 8, supporting the upper mold 2 / lower mold 3. This eliminates the need for further support from the workers, reducing their workload. When the support base 5 on the upper mold 2 / lower mold 3 contacts the top of the guide frame 8, the positioning block 6 on the support base 5 moves a specified distance within the positioning slot 9. This aligns the fixing slot 20 on the positioning block 6 with the fixing block 24, indicating that the upper mold 2 / lower mold 3 has reached its installation position on the guide frame 8. At this point, by releasing the originally outward-pulling positioning slide 21, the previously buffered positioning position is restored. Spring 23 is reset, thereby driving the positioning horizontal plate 22 on the positioning slide 21 to reset and move on the positioning base plate 11. The fixing block 24 on the positioning horizontal plate 22 passes through the guide frame 8 and is inserted into the fixing slot 20, thereby limiting the positioning block 6 and completing the installation of the upper mold 2 / lower mold 3. This allows the upper mold 2 / lower mold 3 to be fixedly installed on the guide frame 8, avoiding dislocation or displacement of the upper mold 2 and lower mold 3 due to non-human factors during use. This improves the bending effect of the device and ensures the bending accuracy of the upper mold 2 and lower mold 3 on the workpiece, further improving the use effect of the device. It is worth mentioning that during the installation of the upper mold 2 / lower mold 3, the positioning block 6 moves within the positioning slot 9. After the positioning block 6 passes through the positioning slot 9, it contacts the bearing block 17 located at the bottom of the guide frame 8, causing the bearing slide 16 on it to move at the upper limit of the guide frame 8. This puts the bearing spring 19 in a buffer state, and the resulting damping force is used to control the descent speed of the positioning block 6, preventing the upper mold 2 / lower mold 3 from falling too quickly during installation and colliding with other parts of the device, thus improving the safety of the device and the installation stability of the upper mold 2 and lower mold 3. The service life is guaranteed; when the upper mold 2 / lower mold 3 is fixed on the guide frame 8, it means that the positioning block 6 has been limited by the fixing block 24, so that the pressure spring 19 in the buffer state cannot be reset. The resulting elastic force will act on the positioning block 6 through the guide frame 8, thereby increasing the friction and strength between the fixing slot 20 and the fixing block 24. This avoids the fixing block 24 from being dislodged or shaking due to non-human factors when limiting the positioning block 6, which would affect the use of the upper mold 2 / lower mold 3. This improves the use effect of the device and the installation effect of the upper mold 2 and lower mold 3, thereby reducing the limitations of the device.

[0021] In this embodiment, the limiting slider 34 is provided with a self-locking stop component; the self-locking stop component includes a stop base 38, which is installed on both sides of the limiting slider 34; a stop cylinder 39, which is connected to the stop base 38 near the side baffle 4; and a stop square plate 40, which is connected through to the end of the stop cylinder 39 near the side baffle 4; the stop square plate 40 and the stop cylinder 39 are in sliding engagement; a self-locking inclined block 41 is installed on the side of the stop square plate 40 near the side baffle 4; the self-locking inclined block 41 has only one... A sloping surface; the side baffle 4 is provided with several self-locking grooves 42 arranged at equal intervals on the side near the actuator block 10; the self-locking grooves 42 are adapted to the self-locking inclined blocks 41, and the sloping surfaces of both are away from the top of the processing table 1; the large surface of the self-locking inclined blocks 41 is located at the edge of the side baffle 4 near the actuator block 10; a stop spring 43 is sleeved on the stop cylinder 39; one end of the stop spring 43 is fixedly connected to the stop square plate 40, and the other end is fixedly connected to the stop base 38; When the limit slider 34 is pulled upward to release the limit setting on the actuator cylinder 30, the self-locking wedge block 41 moves upward, causing its inclined surface to contact the inclined surface on the self-locking groove 42. This puts pressure on the self-locking wedge block 41, causing the stop plate 40 on it to move at the upper limit on the stop base 38 via the stop cylinder 39. This puts the stop spring 43 in a buffer state, allowing the limit slider 34 to move upward normally. When the self-locking wedge block 41 passes through one of the self-locking grooves 42, it is no longer limited. The self-locking wedge block 41 is reset by the reset of the stop spring 43 and returns to the self-locking groove 42, thus locking the limit slider 34 in its current position. After it moves to a specified distance, the limit slider 34 is no longer pulled. The limit spring 36 wants to reset, and the force acts on the self-locking wedge block 41, wanting it to reset. However, since the self-locking wedge block 41 is located in the self-locking groove 42, the two... The planar contact prevents the self-locking inclined block 41 from moving, thus limiting the slider 34 to its current position. This allows the operator to focus on the installation of the upper mold 2 / lower mold 3, ensuring that the slider 34 can only move in one direction. This prevents the actuator block 10 on the corresponding actuator from being unable to move due to the reset of the slider 34 when simultaneously disassembling and assembling two molds, reducing the limitations of the device. It also further reduces the workload of the operator, allowing them to concentrate on operating the corresponding actuator for simultaneous disassembly and assembly of two molds, further improving the device's effectiveness. Notably, the direction of the inclined surface on the self-locking inclined groove 42 can be changed according to different needs to control the unidirectional movement of the slider 34 in different directions. This can prevent the limiting column 35 from shifting or dislodging due to non-human factors when limiting the actuator block 10, further reducing the limitations of the device.

[0022] The present invention also provides a method for using a bending device for excavator processing, comprising the following steps: S1. Place the upper mold 2 and the lower mold 3, which control the bending shape, on the two guide rectangular frames 8 respectively, so that the lower mold 3, which is a concave mold, faces the upper mold 2, which is a convex mold. S2. By operating the same position actuator, the upper mold 2 and the lower mold 3 can be fixedly installed on the two guide frames 8 respectively. S3. When the device needs to be maintained during use, the upper mold 2 / lower mold 3 on the guide frame 8 can be disassembled and installed separately using the positioning and locking assembly. S4. Place the workpiece between the upper mold 2 and the lower mold 3, and control the relative pressure device to bend the workpiece.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bending device for excavator processing, comprising a processing table; an upper die; and a lower die; characterized in that: The upper mold is a punch, and the lower mold is a die, with the punch and die arranged opposite to each other; the processing table is provided with a relative pressure device for bending the workpiece; the relative pressure device includes a side baffle, which is installed on the top edge of the processing table; the two side baffles are arranged symmetrically. The support blocks are all connected to the sides of the upper and lower molds; The positioning block is installed on the side of the support base block near the top of the processing table; Guide cylinder, connected to the top of the machining table; A guide rectangular frame is connected through the guide cylinder at the end away from the processing table; the guide rectangular frame and the guide cylinder are in sliding fit; the two guide rectangular frames are located at different heights, and the upper mold and the lower mold are located in the two guide rectangular frames respectively; the side of the guide rectangular frame away from the top of the processing table is located on the moving path of the support base block; A positioning and locking assembly is disposed on a guide frame; the positioning and locking assembly is used to install and remove the upper mold / lower mold onto the guide frame; the positioning and locking assembly includes a positioning slot, which is disposed through the guide frame on the side away from the top of the processing table; the positioning slot fits into the positioning block, and the two slide together; A corresponding actuator is disposed on the side baffle; the corresponding actuator is used to simultaneously replace the upper mold and the lower mold; the corresponding actuator includes an actuator block located between the two side baffles; the top and bottom of the actuator block are connected to a positioning base plate; It includes a pressure-bearing sliding column, which is connected through the guide frame on the side away from the top of the processing table; the pressure-bearing sliding column is slidably engaged with the guide frame; A pressure-bearing rectangular block is installed at one end of the pressure-bearing sliding column near the top of the processing table; the pressure-bearing rectangular block has a rectangular groove in the middle, the size of which is larger than that of the upper mold and the lower mold; the side of the pressure-bearing rectangular block away from the top of the processing table is located on the moving path of the positioning insert; A pressure limiting plate is installed at the end of the pressure-bearing sliding column away from the pressure-bearing moment block; the pressure limiting plate is located at the top of the guide frame, and the pressure-bearing moment block is located at the bottom of the guide frame. A pressure spring is sleeved on a pressure-bearing sliding column; one end of the pressure spring is fixedly connected to a pressure-bearing limiting plate, and the other end is fixedly connected to a guide frame. Includes a retaining slot, which is disposed through the positioning insert on the side near the positioning substrate; A positioning slide post is connected through the positioning substrate to the side near the positioning block; the positioning slide post slides in conjunction with the positioning substrate. The positioning horizontal plate is installed at the end of the positioning slide near the positioning block; A positioning spring is sleeved on a positioning slide post; one end of the positioning spring is fixedly connected to the positioning base plate, and the other end is fixedly connected to the positioning cross plate. The positioning block is connected to the side of the positioning plate near the positioning block. After the positioning block passes through the positioning slot by a specified distance, the positioning slot is flush with the positioning block. After the positioning block passes through the guide frame near the side of the positioning plate, it is inserted into the positioning slot.

2. The bending device for excavator processing according to claim 1, characterized in that: Includes a displacement chute, which is located on the opposite sides of the two side baffles; A partition plate is installed at the middle of the displacement groove; a telescopic cylinder is connected to the top and bottom of the partition plate; a displacement slider is connected to the output end of the telescopic cylinder; the displacement slider is fitted into the displacement groove, and the two slide in cooperation; the two displacement sliders located at the top and bottom of the partition plate are respectively connected to two guide frames.

3. The bending device for excavator processing according to claim 1, characterized in that: Includes directional bases, installed on both sides of the actuator block; A directional cylinder is connected through the side of the side baffle; one end of the directional cylinder is connected to a directional pull plate, and the other end is fixedly connected to a directional base; the directional pull plate is located on the outside of the side baffle.

4. A bending device for excavator processing according to claim 1, characterized in that: Includes a T-shaped base, installed on the side baffle near the actuator block; An actuating cylinder is connected to the T-shaped base on the side near the actuating block; the opening of the actuating cylinder faces the actuating block. An actuating cylinder is connected at one end to an actuating block and at the other end to an opening in an actuating cylinder; the actuating cylinder and the actuating cylinder are in sliding fit. A compression spring is disposed inside the actuating cylinder; one end of the compression spring is fixedly connected to the bottom surface inside the actuating cylinder, and the other end is fixedly connected to the actuating cylinder. A limiting groove is provided through the outer wall of the actuating cylinder; several limiting grooves are arranged at equal intervals.

5. A bending device for excavator processing according to claim 4, characterized in that: Includes a limiting square post, installed on top of the T-shaped base; The limiting slider is connected to the limiting square post through the side near the limiting circular groove; the limiting square post and the limiting slider slide in a sliding fit. A limiting post is installed on the side of the limiting slider near the limiting groove; when the limiting post penetrates the outer wall of the actuator cylinder, it is engaged in one of the limiting grooves. A limiting spring is sleeved on a limiting square post; one end of the limiting spring is fixedly connected to a limiting slider, and the other end is connected to a limiting square plate, which is connected to the end of the limiting square post away from the T-shaped base.

6. A bending device for excavator processing according to claim 5, characterized in that: The limiting slider is provided with a stop self-locking component; the stop self-locking component includes a stop base, which is installed on both sides of the limiting slider; A stop cylinder is connected to the stop base on the side near the side baffle. A stop square plate is connected through to one end of the stop cylinder near the side baffle; the stop square plate and the stop cylinder are in sliding fit; a self-locking inclined block is installed on the side of the stop square plate near the side baffle; the self-locking inclined block has only a single inclined surface.

7. A bending device for excavator processing according to claim 6, characterized in that: The side baffle is provided with several self-locking inclined grooves arranged at equal intervals on the side near the actuator block; the self-locking inclined grooves are adapted to the self-locking inclined blocks, and the inclined surfaces of both are facing away from the top of the processing table; the large surface of the self-locking inclined block is located at the edge of the side baffle near the actuator block; a stop spring is sleeved on the stop cylinder; one end of the stop spring is fixedly connected to the stop square plate, and the other end is fixedly connected to the stop base.

8. A method of using a bending device for excavator processing, comprising using the bending device for excavator processing as described in claim 1, characterized in that, Including the following steps: S1. Place the upper and lower dies that control the bending shape on the two guide frames respectively, so that the lower die, which is a concave die, and the upper die, which is a convex die, face each other. S2. By operating the same position actuator, the upper mold and the lower mold can be fixedly installed on the two guide frames at the same time. S3. When the upper / lower mold needs to be maintained during the use of the device, the upper / lower mold on the guide frame can be disassembled and installed separately using the positioning and locking components. S4. Place the workpiece between the upper and lower dies, and control the relative pressure device to bend the workpiece.

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