Servo cutting device of punching machine table

Abstract

The utility model provides a servo cutting-off device of a punching machine table, which comprises a cutting-off machine main body, a servo driving assembly, a curved roller assembly, a linkage assembly, an upper cutter assembly, a base, a lower cutter assembly, a feeding plate and a discharging hopper, and the front end and the rear end of the cutting-off machine main body are respectively provided with the feeding plate and the discharging hopper. A cutting-off area is arranged between the feeding plate and the discharging hopper, a material belt sequentially passes through the feeding plate, the cutting-off area and the discharging hopper, the lower cutter assembly is fixedly installed on the base, a servo driving assembly is installed on the cutting-off machine body, and a curved roller assembly is installed at the output end of the servo driving assembly. The servo driving assembly is in driving connection with the linkage assembly through the curved roller assembly, the output end of the linkage assembly is connected with the upper cutter assembly, and the servo driving assembly is used for driving the upper cutter assembly to move up and down in the vertical direction. According to the utility model, efficient, accurate and environment-friendly processing is realized through mechanical and electrical integration design, and the production efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of cutting machine structure technology, and in particular to a servo cutting device for a stamping machine. Background Technology

[0002] Traditional stamping and cutting machines mostly use hydraulic drive systems, which have the following problems:

[0003] Due to its large size, the hydraulic system requires a large oil tank, resulting in a large overall footprint and complex structure for the equipment.

[0004] Environmental pollution: hydraulic oil is prone to overheating after long-term use, producing oil mist that pollutes the air, and there is a high risk of oil leakage, which affects the working environment.

[0005] Noise is a problem; the hydraulic pump is quite noisy when it is running, especially under high pressure conditions, which can be disruptive to operators.

[0006] Insufficient precision, mechanical clearances and oil pressure fluctuations in the hydraulic system make it difficult to accurately control the cutting stroke, requiring an additional braking structure, which further increases the complexity.

[0007] There is a need for a new type of servo cutting device for stamping presses with higher production efficiency, which can solve the problems mentioned above. Utility Model Content

[0008] This utility model provides a servo cutting device for a stamping machine. By technically modifying the existing cutting machine device, it solves the problems of low working efficiency and complex structure of the existing cutting machine.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0010] A servo-driven cutting device for a stamping press includes a cutting machine body, a servo drive assembly, a crank assembly, a linkage assembly, an upper cutter assembly, a base, a lower cutter assembly, a feed plate, and a discharge hopper. The feed plate and discharge hopper are respectively installed at the front and rear ends of the cutting machine body. A cutting area is provided between the feed plate and the discharge hopper. A strip material passes sequentially through the feed plate, the cutting area, and the discharge hopper. An upper cutter assembly and a lower cutter assembly are provided within the cutting area. The lower cutter assembly is fixedly installed on the base. A servo drive assembly is installed on the cutting machine body. A crank assembly is installed at the output end of the servo drive assembly. The servo drive assembly is connected to the linkage assembly via the crank assembly. The output end of the linkage assembly is connected to the upper cutter assembly. The servo drive assembly drives the upper cutter assembly to move vertically up and down.

[0011] Preferably, the servo drive assembly includes a servo motor, a servo synchronous pulley, a large synchronous pulley, and a synchronous belt. The servo motor is fixedly mounted on the main body of the cutting machine. The output end of the servo motor is connected to the servo synchronous pulley. A large synchronous pulley is located directly below the servo synchronous pulley. The servo synchronous pulley is driven and connected to the large synchronous pulley via the synchronous belt. The middle position of the large synchronous pulley is connected to the hockey stick assembly. The hockey stick assembly is rotatably mounted on the main body of the cutting machine via a hockey stick fixing flange.

[0012] Preferably, the linkage assembly includes a transmission rod, a transmission rod bearing, a connecting rod spacer sleeve, an upper support shaft, a connecting rod assembly, and a guide post. The linkage assembly is installed inside the main body of the cutting machine. The crankshaft of the crankshaft assembly passes through the main body of the cutting machine, and the outer wheel surface of the crankshaft eccentric wheel is rotatably connected to the transmission rod through the transmission rod bearing. The other end of the transmission rod away from the crankshaft assembly is hinged to the connecting rod assembly. The upper end of the connecting rod assembly is rotatably mounted on the main body of the cutting machine through the upper support shaft. The lower end of the connecting rod assembly is hinged to the guide post, and the lower end of the guide post is fixedly connected to the upper cutting blade assembly.

[0013] Preferably, the transmission rod and connecting rod assembly are respectively disposed on the left and right sides of the hockey stick assembly, and the lower end of the connecting rod assembly is respectively connected to the left and right sides of the upper cutter assembly.

[0014] Preferably, the connecting rod assembly includes an upper connecting rod and a lower connecting rod. The upper end of the upper connecting rod is rotatably mounted on the main body of the cutting machine via an upper support shaft. The transmission rod is hinged to the upper connecting rod. The lower end of the upper connecting rod is hinged to the lower connecting rod. The lower connecting rod is hinged to the upper end of the guide post.

[0015] Preferably, a stripping plate is also installed at the front end of the discharge hopper, a stopper screw is fixedly installed on the base, a spring is installed above the stopper screw, and the stripping plate is floatingly connected to the base through the spring.

[0016] The beneficial effects of this utility model are as follows:

[0017] This application utilizes a servo motor for direct drive, replacing the hydraulic pump and eliminating the need for an oil tank and complex piping, resulting in a more compact device. The servo system achieves closed-loop control of stroke and speed through computer programming, achieving millimeter-level cutting accuracy, making it particularly suitable for precision machining applications. The servo motor outputs power on demand, reducing idle energy consumption and eliminating the need for hydraulic oil, thus avoiding environmental pollution.

[0018] Furthermore, the linkage components set in this application provide more stable power transmission, enabling more efficient and precise processing, resulting in higher production efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the front structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the AA cross-sectional structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the BB cross-sectional structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the stripper plate of this utility model;

[0024] Figure 6 This is a schematic diagram of the linkage component and hockey stick component of this utility model;

[0025] The attached figures are labeled as follows: 1. Main body of the cutting machine; 2. Servo drive assembly; 21. Servo motor; 22. Servo synchronous pulley; 23. Large synchronous pulley; 24. Synchronous belt; 3. Crankshaft assembly; 31. Eccentric wheel; 4. Linkage assembly; 41. Transmission rod; 42. Transmission rod bearing; 43. Connecting rod spacer sleeve; 44. Upper support shaft; 45. Connecting rod assembly; 451. Upper connecting rod; 452. Lower connecting rod; 453. Fixed shaft; 46. Guide post; 47. Guide post sleeve; 5. Upper cutter assembly; 6. Base; 7. Lower cutter assembly; 8. Feed plate; 9. Discharge hopper; 10. Demolishing plate; 101. Plug screw; 102. Spring. Detailed Implementation

[0026] The specific content of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0027] Please see Figure 1-6 As shown, this utility model provides a servo cutting device for a stamping machine, including a cutting machine body 1, a servo drive assembly 2, a crank assembly 3, a linkage assembly 4, an upper cutter assembly 5, a base 6, a lower cutter assembly 7, a feed plate 8, and a discharge hopper 9. The feed plate 8 and the discharge hopper 9 are respectively installed at the front and rear ends of the cutting machine body 1. A cutting area is provided between the feed plate 8 and the discharge hopper 9. The material strip is sequentially arranged through the feed plate 8, the cutting area, and the discharge hopper 9. The upper cutter assembly 5 and the lower cutter assembly 7 are arranged in the cutting area. The lower cutter assembly 7 is fixedly installed on the base 6. The servo drive assembly 2 is installed on the cutting machine body 1. The crank assembly 3 is installed at the output end of the servo drive assembly 2. The servo drive assembly 2 is driven and connected to the linkage assembly 4 through the crank assembly 3. The output end of the linkage assembly 4 is connected to the upper cutter assembly 5. The servo drive assembly 2 is used to drive the upper cutter assembly 5 to move up and down in the vertical direction.

[0028] Furthermore, the servo drive assembly 2 includes a servo motor 21, a servo synchronous pulley 22, a large synchronous pulley 23, and a synchronous belt 24. The servo motor 21 is fixedly mounted on the cutting machine body 1. The output end of the servo motor 21 is connected to the servo synchronous pulley 22. The large synchronous pulley 23 is located directly below the servo synchronous pulley 22. The servo synchronous pulley 22 is driven and connected to the large synchronous pulley 23 via the synchronous belt 24. The middle position of the large synchronous pulley 23 is connected to the hockey stick assembly 3. The hockey stick assembly 3 is rotatably mounted on the cutting machine body 1 via a hockey stick fixing flange. When the servo motor 21 starts, it drives the servo synchronous pulley 22 to rotate. The servo synchronous pulley 22 drives the large synchronous pulley 23 to rotate via the synchronous belt 24. The rotation of the large synchronous pulley 23 drives the hockey stick assembly 3 to rotate. The servo motor 21 has a built-in encoder that connects to the PLC controller to achieve closed-loop control of the cutting stroke and speed.

[0029] Furthermore, the linkage assembly 4 includes a transmission rod 41, a transmission rod bearing 42, a connecting rod spacer 43, an upper support shaft 44, a connecting rod assembly 45, and a guide post 46. The linkage assembly 4 is installed inside the main body 1 of the cutting machine. The crankshaft of the crankshaft assembly 3 passes through the main body 1 of the cutting machine, and the outer wheel surface of the crankshaft eccentric wheel 31 is rotatably connected to the transmission rod 41 through the transmission rod bearing 42. The other end of the transmission rod 41 away from the crankshaft assembly 3 is hinged to the connecting rod assembly 45 through the connecting rod spacer 43. The upper end of the connecting rod assembly 45 is rotatably mounted on the main body 1 of the cutting machine through the upper support shaft 44. The lower end of the connecting rod assembly 45 is hinged to the guide post 46, and the lower end of the guide post 46 is fixedly connected to the upper cutter assembly 5.

[0030] The crankshaft of the hockey stick assembly 3 is equipped with an eccentric wheel 31. The outer wheel surface of the eccentric wheel 31 is rotatably connected to the transmission rod 41 through the transmission rod bearing. When the crankshaft rotates, it drives the transmission rod 41 to swing up and down. The transmission rod 41 drives the upper cutter assembly 5 to move up and down through the connecting rod assembly 45.

[0031] Furthermore, the transmission rod 41 and the connecting rod assembly 45 are respectively arranged on the left and right sides of the hockey stick assembly 3, and the lower end of the connecting rod assembly 45 is respectively connected to the left and right sides of the upper cutter assembly 5.

[0032] Furthermore, the guide post 46 is externally sleeved and installed inside the guide post sleeve 47, and a sealing ring is also provided between the guide post sleeve 47 and the inner wall of the cutting machine body 1. A skeleton oil seal is also provided at the bottom of the guide post sleeve 47.

[0033] Furthermore, the connecting rod assembly 45 includes an upper connecting rod 451 and a lower connecting rod 452. The upper end of the upper connecting rod 451 is rotatably mounted on the cutting machine body 1 via an upper support shaft 44. The transmission rod 41 is hinged to the upper connecting rod 451, and the lower end of the upper connecting rod 451 is hinged to the lower connecting rod 452. The lower connecting rod 452 is hinged to the upper end of the guide post 46. The upper connecting rod 451 and the lower connecting rod 452 are rotatably connected via a fixed shaft 453.

[0034] Furthermore, a stripping plate 10 is installed at the front end of the discharge hopper 9, and a locking screw 101 is fixedly installed on the base 6. A spring 102 is installed above the locking screw 101, and the stripping plate 10 is floatingly connected to the base 6 via the spring 102. The feed plate 8, the stripping plate 10, and the working surface of the lower cutter assembly 7 are flush to prevent material jamming after cutting. The preload of the spring 102 is adjustable to adapt to the stripping requirements of materials of different thicknesses.

[0035] This application employs a servo motor 21 for direct drive, replacing the hydraulic pump, eliminating the need for an oil tank and complex piping, resulting in a more compact device. The servo system achieves closed-loop control of stroke and speed through computer programming, achieving millimeter-level cutting accuracy, making it particularly suitable for precision machining applications. The servo motor 21 outputs power on demand, reducing no-load energy consumption and eliminating the need for hydraulic oil, thus avoiding environmental pollution.

[0036] Furthermore, this application uses a servo motor 21 to drive the crank assembly 3, and the rotational motion is converted into the linear reciprocating motion of the upper cutter through the linkage assembly 4, thereby achieving high-precision and high-efficiency cutting of metal / non-metal strips. The linkage assembly 4 set in this application has a more stable power transmission, enabling more efficient and precise processing and higher production efficiency.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

[0038] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0039] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A servo-driven cutting device for a stamping machine, characterized in that, The machine includes a cutting machine body, a servo drive assembly, a rocker arm assembly, a linkage assembly, an upper cutter assembly, a base, a lower cutter assembly, a feed plate, and a discharge hopper. The feed plate and discharge hopper are respectively installed at the front and rear ends of the cutting machine body. A cutting area is provided between the feed plate and the discharge hopper. The material strip passes sequentially through the feed plate, the cutting area, and the discharge hopper. An upper cutter assembly and a lower cutter assembly are provided within the cutting area. The lower cutter assembly is fixedly installed on the base. A servo drive assembly is installed on the cutting machine body. A rocker arm assembly is installed at the output end of the servo drive assembly. The servo drive assembly is connected to the linkage assembly via the rocker arm assembly. The output end of the linkage assembly is connected to the upper cutter assembly. The servo drive assembly is used to drive the upper cutter assembly to move vertically up and down.

2. The servo cutting device for a stamping machine according to claim 1, characterized in that, The servo drive assembly includes a servo motor, a servo synchronous pulley, a large synchronous pulley, and a synchronous belt. The servo motor is fixedly mounted on the main body of the cutting machine. The output end of the servo motor is connected to the servo synchronous pulley. The large synchronous pulley is located directly below the servo synchronous pulley. The servo synchronous pulley is driven and connected to the large synchronous pulley via the synchronous belt. The middle position of the large synchronous pulley is connected to the hockey stick assembly. The hockey stick assembly is rotatably mounted on the main body of the cutting machine via a hockey stick fixing flange. The hockey stick assembly passes through the hockey stick fixing flange and is connected to the linkage assembly.

3. The servo cutting device for a stamping machine according to claim 2, characterized in that, The linkage assembly includes a transmission rod, a transmission rod bearing, a connecting rod spacer sleeve, an upper support shaft, a connecting rod assembly, and a guide post. The linkage assembly is installed inside the main body of the cutting machine. The crankshaft of the crankshaft assembly passes through the main body of the cutting machine, and the outer wheel surface of the crankshaft eccentric wheel is rotatably connected to the transmission rod through the transmission rod bearing. The other end of the transmission rod away from the crankshaft assembly is hinged to the connecting rod assembly. The upper end of the connecting rod assembly is rotatably mounted on the main body of the cutting machine through the upper support shaft. The lower end of the connecting rod assembly is hinged to the guide post, and the lower end of the guide post is fixedly connected to the upper cutting blade assembly.

4. The servo cutting device for a stamping machine according to claim 3, characterized in that, The transmission rod and connecting rod assembly are respectively arranged on the left and right sides of the hockey stick assembly, and the lower end of the connecting rod assembly is respectively connected to the left and right sides of the upper cutter assembly.

5. A servo-driven cutting device for a stamping machine according to claim 4, characterized in that, The connecting rod assembly includes an upper connecting rod and a lower connecting rod. The upper end of the upper connecting rod is rotatably mounted on the main body of the cutting machine via an upper support shaft. The transmission rod is hinged to the upper connecting rod. The lower end of the upper connecting rod is hinged to the lower connecting rod. The lower connecting rod is hinged to the upper end of the guide post.

6. The servo cutting device for a stamping machine according to claim 1, characterized in that, A stripping plate is also installed at the front end of the discharge hopper, and a locking screw is fixedly installed on the base. A spring is installed above the locking screw, and the stripping plate is floatingly connected to the base through the spring.

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