Bending device for air compressor production

Abstract

The invention discloses a bending device for air compressor production, and belongs to the technical field of bending equipment, the bending device comprises a bending press body, a V-shaped cutting edge upper die and a V-shaped groove lower die, the V-shaped cutting edge upper die and the V-shaped groove lower die are arranged on the bending press body, a movable plate is fixedly connected to the top of the V-shaped cutting edge upper die, and the bending device further comprises a first sliding plate fixedly connected to the movable plate; the bottom of the bending press body is rotationally connected with a two-way screw. According to the bending device for air compressor production, a hydraulic cylinder drives a moving plate to drive a V-shaped cutting edge upper die to move downwards, a first sliding plate is matched with a driving part to enable a two-way screw to rotate, two threaded blocks are controlled to drive plate clamping plates to get close to each other to clamp and fix a plate, and the plate can be prevented from shifting in the bending process; the bending position of the plate is more accurate, the bending effect is better, the precision is higher, the production efficiency and quality of the air compressor parts are improved, and meanwhile the first sliding plate compresses the first spring on the strip-shaped rod so that excessive clamping force can be prevented from being applied to the plate.

Description

Technical Field

[0001] The present invention relates to the technical field of bending equipment, and in particular to a bending device for air compressor production. Background Art

[0002] An air compressor is a device used to compress gas. Among the components of an air compressor, there are many pipe fittings. To facilitate the installation of the pipe fittings, a pipe fitting bending device is required to bend the pipe fittings of the air compressor. A press brake is a mechanical device used to bend materials such as metal sheets, pipes, or profiles. It mainly applies pressure to cause plastic deformation of the workpiece under the action of a die, so as to achieve the required bending shape and angle. For example, when processing metal products such as air compressor casings and automotive parts, a press brake can fold flat metal materials into shapes with a certain curvature or angle to meet the design requirements of the product.

[0003] After retrieval, the patent with the Chinese patent publication number CN222036414U discloses a bending device for air compressor production, which relates to the technical field of bending equipment. The utility model includes a workbench, on the upper surface of which a positioning member is fixedly connected, a cylinder is fixedly connected to the upper surface of the workbench, the output end of the cylinder is fixedly connected with a clamping plate, a bending member is rotatably connected to one side of the workbench, and a fixing device is arranged on the side of the clamping plate away from the cylinder. The fixing device includes a rubber pad, which is arranged on the side of the clamping plate away from the cylinder, both ends of the rubber pad are fixedly connected with steel plates, the cross-section of the steel plate is in a "V" shape, a positioning plate is fixedly connected to one side of the steel plate, and square tubes are fixedly connected to both ends of the clamping plate. The following deficiencies exist in the above patent: Currently, most existing press brakes use V-shaped bending dies to bend plates to achieve the required shape during the production of air compressor accessories. However, when the existing press brakes bend plates, they cannot automatically fix the plates, resulting in the plates being prone to displacement in the horizontal direction during bending, leading to inaccurate bending positions, and unable to obtain the desired bending shape and angle, affecting the bending efficiency and quality. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem in the prior art that the plate cannot be automatically clamped and fixed during bending, is prone to displacement, and leads to inaccurate bending positions, and to propose a bending device for air compressor production.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions: A bending device for air compressor production, including a press bending machine body, a V-shaped edge upper die and a V-shaped groove lower die arranged on the press bending machine body. A moving plate is fixedly connected to the top of the V-shaped edge upper die. It also includes a first sliding plate fixedly connected to the moving plate. A bidirectional screw is rotatably connected to the bottom of the press bending machine body. Two threaded blocks are threadedly connected to the bidirectional screw. Plate clamping plates are fixedly connected to both of the two threaded blocks. A driving member with interlinked movement is arranged between the bidirectional screw and the first sliding plate. The driving member includes a rack slidably connected to one side of the press bending machine body. A gear corresponding to the rack is fixedly connected to the bidirectional screw.

[0006] Preferably, a hydraulic cylinder is fixedly installed on the top of the press bending machine body. The output end of the hydraulic cylinder extends into the interior of the press bending machine body and is fixedly connected to the moving plate. Guide columns are fixedly connected to both sides of the moving plate. Both of the two guide columns penetrate the press bending machine body and are slidably connected to the press bending machine body.

[0007] Preferably, the V-shaped groove lower die is fixedly connected to the bottom wall of the press bending machine body. The V-shaped edge upper die is fixedly connected to the bottom of the moving plate. Four bearing seats are fixedly connected to the press bending machine body. Both ends of the bidirectional screw are rotatably connected to two of the bearing seats. A guide rod is fixedly connected between the other two bearing seats. Second sliding plates are fixedly connected to the bottom sides of both of the two plate clamping plates away from the bidirectional screw. Both of the two second sliding plates are slidably connected to the guide rod.

[0008] Preferably, the driving member further includes a vertical groove opened on the press bending machine body. Vertical rods are fixedly connected to the inner walls at both ends of the vertical groove. A slider is slidably connected to the vertical rods. A vertical plate is fixedly connected to the slider. One side of the vertical plate is fixedly connected to the rack. A chute is opened on one side of the vertical plate. A third spring is sleeved on the vertical rod. Both ends of the third spring respectively abut against the slider and the inner wall of the vertical groove.

[0009] Preferably, a strip-shaped rod is fixedly connected to the inner wall of the chute. One end of the strip-shaped rod extends outside the vertical plate. The first sliding plate is slidably connected to the strip-shaped rod. A first spring is sleeved on the strip-shaped rod. Both ends of the first spring respectively abut against the first sliding plate and the inner wall of the chute.

[0010] Preferably, a first L-shaped plate is fixedly connected to the press bending machine body near the gear. An air collecting barrel is fixedly connected to the first L-shaped plate. A first piston plate is slidably connected in the air collecting barrel. A first connecting rod is fixedly connected to the first piston plate. One end of the first connecting rod extends outside the air collecting barrel and is fixedly connected to one of the threaded blocks.

[0011] Preferably, a blowing plate is fixedly connected to the body of the bending machine near the lower die of the V-shaped groove. A plurality of nozzles are fixedly connected to the blowing plate. An extrusion pipe is fixedly connected and communicated between the blowing plate and the air collecting barrel. An inhalation pipe is fixedly connected to the air collecting barrel. A condenser is fixedly installed on the inhalation pipe.

[0012] Preferably, second L-shaped plates are fixedly connected to both sides of the body of the bending machine near the second sliding plate. A water collecting bucket is fixedly connected to the second L-shaped plate. A second piston plate is slidably connected in the water collecting bucket. A second connecting rod is fixedly connected to the second piston plate. One end of the second connecting rod extends to the outside of the water collecting bucket and is fixedly connected to the second sliding plate.

[0013] Preferably, spray holes are formed in the two plate clamping plates. Extrusion water pipes are fixedly connected and communicated between the two spray holes and the water collecting buckets respectively. Water suction pipes are fixedly connected to the two water collecting buckets respectively. A lower sponge block and a side sponge block are fixedly connected to the upper die of the V-shaped cutting edge. A bottom sponge block is fixedly connected to the bottom wall of the lower die of the V-shaped groove. A first extension plate and a second extension plate are fixedly connected to one side of the top of the body of the bending machine.

[0014] Preferably, a sealing cylinder is fixedly connected to the first extension plate. A third piston plate is slidably connected in the sealing cylinder. A push rod is fixedly connected to the bottom of the third piston plate. A second spring is sleeved on the push rod. The two ends of the second spring are fixedly connected to the push rod and the first extension plate respectively. A first liquid outlet pipe and a second liquid outlet pipe are fixedly connected and communicated between the sealing cylinder and the side sponge block and the bottom sponge block respectively. A lubricant box is fixedly installed on the second extension plate. A liquid suction pipe is fixedly connected and communicated between the sealing cylinder and the lubricant box.

[0015] Compared with the prior art, the present invention provides a bending device for air compressor production, which has the following beneficial effects: The bending device for air compressor production drives the moving plate through a hydraulic cylinder to drive the V-shaped edge upper die to move downward. The first slide plate cooperates with the driving part to rotate the bidirectional screw rod, controls the two threaded blocks to drive the plate clamping plates to approach each other to clamp and fix the plate, which can prevent the plate from shifting during bending, making the bending position of the plate more accurate, the bending effect better, the precision higher, improving the production efficiency and quality of air compressor parts. At the same time, the first slide plate compresses the first spring on the strip-shaped rod to prevent excessive clamping force on the plate. When the threaded block moves, it pulls the first connecting rod to collect air in the air collecting barrel. At the same time, the second slide plate pulls the second connecting rod to make the second piston plate slide, so that the water collecting barrel collects water. After bending the plate, when the two plate clamping plates move away from each other, water is automatically sprayed through the spray holes to cool the bent plate. At the same time, the debris generated by bending is blown away by the blowing plate. And during the upward reset process of the moving plate, it drives the ejector rod on the first slide plate, so that the lubricant in the sealing cylinder is respectively extruded onto the side sponge block and the bottom sponge block through the first liquid outlet pipe and the second liquid outlet pipe, so that the plate can avoid surface scratches or bending angle deviation due to excessive friction during bending, making the bending effect of the plate better and the bending position more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. 6 is a front structural schematic diagram of a bending device for air compressor production proposed by the present invention; Figure 2 FIG. 9 is a back structural schematic diagram of a bending device for air compressor production proposed by the present invention; Figure 3 Proposed by the present invention Figure 2 Schematic diagram of the structure of part A in FIG. Figure 4 FIG. 17 is an overall structural schematic diagram of a bending device for air compressor production proposed by the present invention; Figure 5 Proposed by the present invention Figure 4 Schematic diagram of the structure of part B in FIG. Figure 6 Proposed by the present invention Figure 4 Schematic diagram of the structure of part C in FIG. Figure 7 Proposed by the present invention Figure 4 Schematic diagram of the structure of part D in FIG. Figure 8 FIG. 35 is a left structural schematic diagram of a bending device for air compressor production proposed by the present invention; Figure 9 FIG. 38 is a structural schematic diagram inside the vertical plate of a bending device for air compressor production proposed by the present invention; Figure 10 Proposed by the present invention Figure 9 Schematic diagram of the structure of part E in FIG. Figure 11 The front view structural schematic diagram of a bending device for air compressor production proposed by the present invention; Figure 12 The top view structural schematic diagram of a bending device for air compressor production proposed by the present invention.

[0017] In the figure: 1, the body of the press brake; 2, the V-shaped edge upper die; 3, the V-shaped groove lower die; 4, the moving plate; 5, the first sliding plate; 6, the bidirectional screw; 7, the threaded block; 8, the plate clamping plate; 9, the driving part; 901, the rack; 902, the gear; 903, the vertical groove; 904, the vertical rod; 905, the slider; 906, the vertical plate; 907, the chute; 908, the strip-shaped rod; 909, the first spring; 910, the third spring; 10, the first L-shaped plate; 11, the hydraulic cylinder; 12, the guide post; 13, the bearing seat; 14, the guide rod; 15, the second sliding plate; 16, the air collecting barrel; 17, the first piston plate; 18, the first connecting rod; 19, the blowing plate; 20, the nozzle; 21, the extrusion pipe; 22, the suction pipe; 23, the second L-shaped plate; 24, the water collecting barrel; 25, the second piston plate; 26, the second connecting rod; 27, the spray hole; 28, the water extrusion pipe; 29, the water suction pipe; 30, the lower sponge block; 31, the side sponge block; 32, the bottom sponge block; 33, the first extension plate; 34, the second extension plate; 35, the sealing cylinder; 36, the third piston plate; 37, the push rod; 38, the second spring; 39, the first liquid outlet pipe; 40, the second liquid outlet pipe; 41, the lubricant box; 42, the liquid suction pipe. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0019] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0020] Example 1: Refer to Figures 1 - 12, A bending device for air compressor production, comprising: a press brake body 1, a V-shaped edge upper die 2 and a V-shaped groove lower die 3 arranged on the press brake body 1. A moving plate 4 is fixedly connected to the top of the V-shaped edge upper die 2. It further includes a first slide plate 5 fixedly connected to the moving plate 4. A bidirectional screw 6 is rotatably connected to the bottom of the press brake body 1. Two threaded blocks 7 are threadedly connected to the bidirectional screw 6. Plate clamping plates 8 are fixedly connected to both of the two threaded blocks 7. A driving member 9 with interlinked actions is arranged between the bidirectional screw 6 and the first slide plate 5. The driving member 9 includes a rack 901 slidably connected to one side of the press brake body 1, and a gear 902 corresponding to the rack 901 is fixedly connected to the bidirectional screw 6.

[0021] In the present invention, when bending the parts for air compressors, the plate to be bent is placed on the V-shaped groove lower die 3. The V-shaped edge upper die 2 is driven to move downward by the moving plate 4, and at the same time, the first slide plate 5 is driven downward. Due to the downward movement of the first slide plate 5, the rack 901 on the driving member 9 meshes with the gear 902. While the gear 902 rotates, it drives the bidirectional screw 6 to rotate. The rotation of the bidirectional screw 6 controls the two threaded blocks 7 and the two plate clamping plates 8 to approach each other until the plate is clamped and fixed. Subsequently, the moving plate 4 drives the V-shaped edge upper die 2 to continue to move downward, touches the plate and enters the V-shaped groove lower die 3 downward, so that the plate is bent along the groove of the V-shaped groove lower die 3, thereby realizing clamping and fixing of the plate before bending the plate, which can prevent the plate from shifting during bending, make the bending position of the plate more accurate, the bending effect better, the precision higher, and improve the production efficiency and quality of air compressor parts.

[0022] Embodiment 2: Refer to Figures 1 - 12 , which is basically the same as Embodiment 1. Further, a hydraulic cylinder 11 is fixedly installed on the top of the press brake body 1. The output end of the hydraulic cylinder 11 extends into the press brake body 1 and is fixedly connected to the moving plate 4. Guide columns 12 are fixedly connected to both sides of the moving plate 4. Both of the two guide columns 12 penetrate the press brake body 1 and are slidably connected to the press brake body 1.

[0023] In the present invention, by starting the hydraulic cylinder 11, the moving plate 4 can be driven to move downward, driving the V-shaped edge upper die 2 to cooperate with the V-shaped groove lower die 3 to realize bending. During the downward movement of the moving plate 4 and the bending of the plate, the two guide columns 12 can play a role in guiding the up and down movement of the moving plate 4, making the bending process more stable.

[0024] The V-shaped groove lower die 3 is fixedly connected to the bottom wall of the bending machine body 1, and the V-shaped edge upper die 2 is fixedly connected to the bottom of the moving plate 4. Four bearing seats 13 are fixedly connected to the bending machine body 1. Both ends of the bidirectional screw 6 are rotatably connected to two of the bearing seats 13, and a guide rod 14 is fixedly connected between the other two bearing seats 13. At the bottom of the sides of the two sheet clamping plates 8 away from the bidirectional screw 6, second sliding plates 15 are fixedly connected. Both of the second sliding plates 15 are slidably connected to the guide rod 14.

[0025] In the present invention, when the bidirectional screw 6 rotates to make the two threaded blocks 7 approach each other, the two second sliding plates 15 can slide on the guide rod 14 to play a role in guiding the two sheet clamping plates 8, making the process of the two sheet clamping plates 8 approaching each other more stable.

[0026] The driving member 9 further includes a vertical groove 903 opened on the bending machine body 1. Vertical rods 904 are fixedly connected to the inner walls at both ends of the vertical groove 903. A slider 905 is slidably connected to the vertical rods 904. A vertical plate 906 is fixedly connected to the slider 905. One side of the vertical plate 906 is fixedly connected to the rack 901. A chute 907 is opened on one side of the vertical plate 906. A third spring 910 is sleeved on the vertical rod 904. Both ends of the third spring 910 are abutted against the slider 905 and the inner wall of the vertical groove 903 respectively.

[0027] A strip-shaped rod 908 is fixedly connected to the inner wall of the chute 907. One end of the strip-shaped rod 908 extends outside the vertical plate 906. The first sliding plate 5 is slidably connected to the strip-shaped rod 908. A first spring 909 is sleeved on the strip-shaped rod 908. Both ends of the first spring 909 are abutted against the first sliding plate 5 and the inner wall of the chute 907 respectively.

[0028] In the present invention, when the hydraulic cylinder 11 drives the moving plate 4 downward, the moving plate 4 will drive the first sliding plate 5 to slide in the chute 907 of the vertical plate 906. The vertical plate 906 slides on the vertical rod 904 in the vertical groove 903 of the press brake body 1 through the slider 905 to guide the sliding of the vertical plate 906. When the first sliding plate 5 slides on the strip-shaped rod 908, under the action of the first spring 909 and the third spring 910, it will first drive the vertical plate 906 to slide downward, and then drive the rack 901 to slide downward to engage with the gear 902, realizing the clamping and fixing of the plate. Then, after the plate is clamped and fixed, at this time, the gear 902 cannot continue to rotate, and thus the vertical plate 906 cannot move either. However, at this time, the V-shaped edge upper die 2 has not yet cooperated with the V-shaped groove lower die 3. At this time, the moving plate 4 drives the first sliding plate 5 to continue to slide downward. The first sliding plate 5 now slides on the strip-shaped rod 908 by compressing the first spring 909, realizing the bending of the plate, and will not cause the gear 902 and the bidirectional screw 6 to continue to rotate, so that the plate can be protected from being excessively clamped, and at the same time, it can adapt to the bending of plates with different widths, and can automatically fix the plate during the bending process without affecting the bending process; it should be noted that the elastic force of the third spring 910 is less than the elastic force of the first spring 909.

[0029] Embodiment 3: Refer to Figure 4 , Figure 5 , Figure 6 , Figure 8 , Figure 9 , which is basically the same as Embodiment 1. Furthermore, a first L-shaped plate 10 is fixedly connected to the press brake body 1 near the gear 902. A gas collecting barrel 16 is fixedly connected to the first L-shaped plate 10. A first piston plate 17 is slidably connected in the gas collecting barrel 16. A first connecting rod 18 is fixedly connected to the first piston plate 17. One end of the first connecting rod 18 extends outside the gas collecting barrel 16 and is fixedly connected to one of the threaded blocks 7.

[0030] A blowing plate 19 is fixedly connected to the press brake body 1 near the V-shaped groove lower die 3. A plurality of nozzles 20 are fixedly connected to the blowing plate 19. An extrusion pipe 21 is fixedly connected and communicated between the blowing plate 19 and the gas collecting barrel 16. An inhalation pipe 22 is fixedly connected to the gas collecting barrel 16. A condenser is fixedly installed on the inhalation pipe 22.

[0031] In the present invention, on the way of the hydraulic cylinder 11 driving the V-shaped edge upper die 2 to move downward, while the bidirectional screw 6 rotates to control the two threaded blocks 7 to approach each other, one of the threaded blocks 7 drives the first piston plate 17 to slide in the air collecting barrel 16 by pulling the first connecting rod 18. On the way of the two plate clamping plates 8 approaching each other to clamp the plates, a negative pressure cavity is formed in the air collecting barrel 16, and gas is continuously inhaled into the air collecting barrel 16 through the suction pipe 22 for storage. The gas passes through the condenser on the suction pipe 22 to lower the gas temperature. When the plate bending is completed, since there will be some rust and agglomerated particles on the surface of the plate during transportation, and the plate will generate high temperature during bending. During bending, debris will fall into the inner box of the V-shaped groove lower die 3 at the bending groove of the plate. Subsequently, during the process of driving the hydraulic cylinder 11 to control the moving plate 4 to reset upward, the bidirectional screw 6 rotates in the reverse direction to control the two threaded blocks 7 to move away from each other and reset. One of the threaded blocks 7 will push the first connecting rod 18 to drive the first piston plate 17 to reset. The first piston plate 17 compresses the cold air inside the air collecting barrel 16 and extrudes it into the blowing plate 19 from the extrusion pipe 21. Subsequently, the blowing plate 19 extrudes the cold air to blow away the debris on the V-shaped groove lower die 3 and the debris at the plate bending position. At the same time, when the cold air blows onto the plate, it can also cool the plate, facilitating the early removal of the plate. The debris is automatically removed, which helps to ensure that during the next bending of the plate, the bending effect of the plate will not be affected by the debris, improving the bending quality of the air compressor parts. There is no need for manual handling of debris. It should be noted that the condenser is a prior art, and one-way valves are installed inside both the extrusion pipe 21 and the suction pipe 22.

[0032] Example 4: Refer to Figures 4 - 9 , which is basically the same as Example 1. Further, second L-shaped plates 23 are fixedly connected to both sides of the press body 1 close to the second sliding plate 15. A water collecting barrel 24 is fixedly connected to the second L-shaped plate 23. A second piston plate 25 is slidably connected inside the water collecting barrel 24. A second connecting rod 26 is fixedly connected to the second piston plate 25. One end of the second connecting rod 26 extends outside the water collecting barrel 24 and is fixedly connected to the second sliding plate 15.

[0033] Spray holes 27 are formed in the two plate clamping plates 8. Extrusion water pipes 28 are fixedly connected and communicated between the two spray holes 27 and the water collecting barrel 24. Suction water pipes 29 are fixedly connected and communicated to both of the two water collecting barrels 24. In the present invention, first, the water suction pipe 29 is connected to an external water source. While the two threaded blocks 7 move closer to drive the two plate clamping plates 8 to move, when the two second sliding plates 15 move, they will simultaneously drive the second connecting rod 26 to pull the second piston plate 25 to move, creating a negative pressure in the water collecting bucket 24, sucking in water flow through the water suction pipe 29 for storage. Then, after the plate is bent, when the two plate clamping plates 8 move away from each other and reset, the second connecting rod 26 is pushed, causing the second piston plate 25 to squeeze the water flow, which is then extruded through the water extrusion pipe 28 and further extruded through the spray holes 27 on the plate clamping plates 8 to cool the bent plate, enabling the plate to be quickly cooled, absorbing the heat on the plate, rapidly reducing the plate temperature, facilitating subsequent processing and continuous production, and also reducing the thermal stress and deformation of the plate.

[0034] Embodiment 5: Refer to Figures 1 - 4 and Figure 7 , which is basically the same as Embodiment 1. Further, a lower sponge block 30 and a side sponge block 31 are fixedly connected to the V-shaped edge upper die 2, a bottom sponge block 32 is fixedly connected to the bottom wall of the V-shaped groove lower die 3, and a first extension plate 33 and a second extension plate 34 are fixedly connected to one side of the top of the press brake body 1.

[0035] A sealing cylinder 35 is fixedly connected to the first extension plate 33. A third piston plate 36 is slidably connected in the sealing cylinder 35. A push rod 37 is fixedly connected to the bottom of the third piston plate 36. A second spring 38 is sleeved on the push rod 37, and the two ends of the second spring 38 are respectively fixedly connected to the push rod 37 and the first extension plate 33. A first liquid outlet pipe 39 and a second liquid outlet pipe 40 are respectively fixedly connected and communicated between the sealing cylinder 35 and the side sponge block 31 and the bottom sponge block 32. A lubricant tank 41 is fixedly installed on the second extension plate 34. A liquid suction pipe 42 is fixedly connected and communicated between the sealing cylinder 35 and the lubricant tank 41.

[0036] In the present invention, when bending the components of the air compressor, first, the hydraulic cylinder 11 is driven to drive the moving plate 4 to move upward. The moving plate 4 drives the first sliding plate 5 to move and abut against the push rod 37, causing the push rod 37 to push the third piston plate 36 to move upward in the sealing cylinder 35, squeezing the lubricant in the sealing cylinder 35. The lubricant is respectively transported into the side sponge block 31 and the bottom sponge block 32 through the first liquid outlet pipe 39 and the second liquid outlet pipe 40. The lubricant in the side sponge block 31 enters the lower sponge block 30. The lubricant can form a lubricating film between the cutting edge and the plate, reducing friction. The lubricant enables the plate to be smoothly bent along the cutting edge, avoiding scratches on the surface of the plate or deviation of the bending angle due to excessive friction, and can also prevent the plate from adhering to the side of the mold, ensuring that the plate can be freely bent and deformed between the molds. When the moving plate 4 drives the first sliding plate 5 to disengage from the push rod 37, under the action of the second spring 38, the push rod 37 can automatically pull the third piston plate 36 downward to reset, enabling the sealing cylinder 35 to extract and store the lubricant from the lubricant tank 41 through the liquid suction pipe 42 for the next spraying of the lubricant, which helps to improve the production efficiency and bending quality of the air compressor components; it should be noted that the first sliding plate 5 is not connected to the push rod 37.

[0037] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A bending device for air compressor production, comprising: A press brake body (1) and a V-shaped cutting edge upper die (2) and a V-shaped groove lower die (3) arranged on the press brake body (1), characterized in that a movable plate (4) is fixedly connected to the top of the V-shaped cutting edge upper die (2), and further comprising: A first slide plate (5) is fixedly connected to the movable plate (4); a bidirectional screw rod (6) is rotatably connected to the bottom of the press brake body (1); two threaded blocks (7) are threadedly connected to the bidirectional screw rod (6); a plate clamping plate (8) is fixedly connected to the two threaded blocks (7); a driving member (9) that is interlocked with each other is provided between the bidirectional screw rod (6) and the first slide plate (5); the driving member (9) comprises a rack (901) slidably connected to one side of the press brake body (1); and a gear (902) corresponding to the rack (901) is fixedly connected to the bidirectional screw rod (6).

2. A bending device for air compressor production according to claim 1, characterized in that: A hydraulic cylinder (11) is fixedly mounted on the top of the press brake body (1), an output end of the hydraulic cylinder (11) extends into the interior of the press brake body (1) and is fixedly connected to the movable plate (4), guide columns (12) are fixedly connected to both sides of the movable plate (4), and both guide columns (12) penetrate the press brake body (1) and are slidably connected to the press brake body (1).

3. The bending device for air compressor production according to claim 1, characterized in that: The V-shaped groove lower die (3) is fixedly connected to the bottom wall of the press brake body (1), the V-shaped cutting edge upper die (2) is fixedly connected to the bottom of the movable plate (4), four bearing seats (13) are fixedly connected to the press brake body (1), the two ends of the bidirectional screw (6) are rotatably connected to two of the bearing seats (13), a guide rod (14) is fixedly connected between the other two bearing seats (13), and the bottom of the two plate clamping plates (8) away from the bidirectional screw (6) are fixedly connected to the second slide plate (15), and the two second slide plates (15) are slidably connected to the guide rod (14).

4. The bending device for air compressor production according to claim 1, characterized in that: The driving member (9) further comprises a vertical slot (903) provided on the press brake body (1); vertical rods (904) are fixedly connected to the inner walls at both ends of the vertical slot (903); a slider (905) is slidably connected to the vertical rod (904); a vertical plate (906) is fixedly connected to the slider (905); one side of the vertical plate (906) is fixedly connected to the rack (901); a sliding slot (907) is provided on one side of the vertical plate (906); a third spring (910) is sleeved on the vertical rod (904); two ends of the third spring (910) respectively abut against the slider (905) and the inner wall of the vertical slot (903).

5. The bending device for air compressor production according to claim 4, characterized in that: A strip rod (908) is fixedly connected to the inner wall of the slide groove (907), one end of the strip rod (908) extends to the outside of the vertical plate (906), the first slide plate (5) is slidably connected to the strip rod (908), a first spring (909) is sleeved on the strip rod (908), and two ends of the first spring (909) are respectively against the first slide plate (5) and the inner wall of the slide groove (907).

6. The bending device for air compressor production according to claim 1, characterized in that: A first L-shaped plate (10) is fixedly connected to the press brake body (1) near the gear (902), an air collecting barrel (16) is fixedly connected to the first L-shaped plate (10), a first piston plate (17) is slidably connected inside the air collecting barrel (16), a first connecting rod (18) is fixedly connected to the first piston plate (17), and one end of the first connecting rod (18) extends to the outside of the air collecting barrel (16) and is fixedly connected to one of the threaded blocks (7).

7. The bending device for air compressor production according to claim 6, characterized in that: A blowing plate (19) is fixedly connected to the bending machine body (1) near the V-shaped groove lower die (3), and a plurality of nozzles (20) are fixedly connected to the blowing plate (19). An extrusion pipe (21) is fixedly connected between the blowing plate (19) and the gas collecting barrel (16), and a suction pipe (22) is fixedly connected to the gas collecting barrel (16), and a condenser is fixedly installed on the suction pipe (22).

8. The bending device for air compressor production according to claim 3, characterized in that: A second L-shaped plate (23) is fixedly connected to both sides of the press brake body (1) near the second slide plate (15); a water collecting bucket (24) is fixedly connected to the second L-shaped plate (23); a second piston plate (25) is slidably connected inside the water collecting bucket (24); a second connecting rod (26) is fixedly connected to the second piston plate (25); one end of the second connecting rod (26) extends to the outside of the water collecting bucket (24) and is fixedly connected to the second slide plate (15).

9. The bending device for air compressor production according to claim 8, characterized in that: The two plate clamping plates (8) are provided with spray holes (27), and a water squeezing pipe (28) is fixedly connected between the two spray holes (27) and the water collecting bucket (24). The two water collecting buckets (24) are fixedly connected with a water suction pipe (29). The V-shaped cutting edge upper die (2) is fixedly connected to a lower sponge block (30) and a side sponge block (31). The bottom wall of the V-shaped groove lower die (3) is fixedly connected to a bottom sponge block (32). The top side of the press brake body (1) is fixedly connected to a first extension plate (33) and a second extension plate (34).

10. The bending device for air compressor production according to claim 9, characterized in that: A sealing cylinder (35) is fixedly connected to the first extension plate (33), a third piston plate (36) is slidably connected inside the sealing cylinder (35), a push rod (37) is fixedly connected to the bottom of the third piston plate (36), a second spring (38) is sleeved on the push rod (37), two ends of the second spring (38) are respectively fixedly connected to the push rod (37) and the first extension plate (33), a first liquid outlet pipe (39) and a second liquid outlet pipe (40) are respectively fixedly connected between the sealing cylinder (35) and the side sponge block (31) and the bottom sponge block (32), a lubricant box (41) is fixedly installed on the second extension plate (34), and a liquid suction pipe (42) is fixedly connected between the sealing cylinder (35) and the lubricant box (41).

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