A new continuous punching machine

Abstract

The utility model relates to a novel continuous punch press, it includes frame, upper punch, lower workstation and drive assembly, is equipped with the stamping area and the feeding space to realize cross feeding on the frame, and lower workstation and upper punch all are connected with the frame, drive assembly is located the upper punch top, and it includes crankshaft, big connecting rod, motor, driving wheel, driven wheel, belt and at least one pressure piece, crankshaft rotatory connection is established in the frame, big connecting rod realizes the transmission connection of crankshaft and upper punch, utilizes the transmission of motor and crankshaft with driving wheel and driven wheel through belt, at least one pressure piece is located the outside of driven wheel, and rotatory connection is established in the frame, and the distance between the outer wall of at least one pressure piece and the outer wall of driven wheel is less than the thickness of belt to make the pressure piece close belt. The utility model realizes the die space of punch press frame to be big, and the structure is more stable, and the stamping precision is higher, can also realize cross feeding of front and back, left and right cross feeding simultaneously, satisfies different complex product processing demand.

Description

Technical Field

[0001] This utility model relates to the field of stamping equipment technology, specifically to a novel continuous stamping machine tool. Background Technology

[0002] A punch press is a stamping press. In national production, stamping technology has become increasingly widely used due to its advantages over traditional machining, such as saving materials and energy, high efficiency, low operator skill requirements, and the ability to produce products that cannot be achieved through machining by using various molds.

[0003] Referring to Chinese patent document CN105584074A, which describes an existing stamping machine tool, it is known that existing stamping machines typically use a combination of a motor and a pulley transmission structure to drive the crankshaft structure to rotate, thereby achieving continuous lifting and lowering of the upper die. However, when the motor rotates at high speed to drive the upper die for continuous stamping, the belt and pulley are prone to slippage, resulting in poor stamping or even equipment failure.

[0004] Therefore, it is necessary to provide a technical solution to address the above problems. Utility Model Content

[0005] This utility model provides a new type of continuous stamping machine tool, which aims to solve the problem that the die space of existing stamping presses is not large enough for the same tonnage, resulting in poor stamping or even equipment failure.

[0006] To achieve the above objectives, this utility model provides a novel continuous stamping machine tool, comprising a frame, an upper punch, a lower worktable, and a drive assembly, wherein:

[0007] The frame has a stamping area in the middle that runs in the left-right direction, and a feeding space in the front-back direction is provided behind the stamping area.

[0008] The lower worktable and the upper punch are both located within the stamping area, with the lower worktable positioned below the upper punch. The lower worktable is fixedly connected to the frame, and the upper punch is slidably connected to the frame.

[0009] The drive assembly is located above the upper punch and includes a crankshaft, a connecting rod, a motor, a drive pulley, a driven pulley, a belt, and at least one pressure-applying component. The crankshaft is rotatably connected to the frame. One end of the connecting rod is connected to the eccentric portion of the crankshaft, and the other end is movably connected to the upper punch. The motor is fixedly connected to the frame. The drive pulley is fixedly connected to the output end of the motor. The driven pulley is fixedly connected to one end of the crankshaft. The belt drives the drive pulley and the driven pulley together. At least one pressure-applying component is located outside the driven pulley and rotatably connected to the frame. The distance between the outer wall of at least one pressure-applying component and the outer wall of the driven pulley is less than the thickness of the belt, so that the pressure-applying component is in close contact with the belt.

[0010] In some embodiments, there are two pressure-applying members, with at least two pressure-applying members symmetrically arranged on both sides of the driven wheel.

[0011] In some embodiments, the pressure-applying member has a cooling cavity formed inside, and at least one end of the member is connected to a rotary joint. The rotary joint is provided with an inlet and an outlet that communicate with the cooling cavity.

[0012] In some embodiments, the novel continuous stamping machine tool further includes a protective cover, which is mounted on the frame. The driving wheel, the driven wheel, and the belt are all disposed inside the protective cover, and one end of the pressure-applying member is connected to the protective cover.

[0013] In some embodiments, a partition is detachably mounted on the frame to separate the loading space from the stamping area.

[0014] In some embodiments, a discharge hole is formed in the middle of the lower worktable, and an avoidance hole is formed in the machine tool at the position corresponding to the discharge hole.

[0015] In some embodiments, the frame has a collection area extending in a front-rear direction below the clearance hole.

[0016] In some embodiments, the frame is provided with two guide posts between the feeding space, and the upper punch is provided with a slider that is slidably connected to the guide posts. The center distance between the two guide posts is widened, and the slider is enlarged, making the sliding of the upper punch more stable; and the feeding space is left between the two guide posts to realize the discharge in the front-back direction.

[0017] The technical advantages of this novel continuous stamping machine tool are as follows:

[0018] 1. This application improves stability by increasing the pressure coverage area of ​​the upper punch, thereby ensuring the passability of large-size molds and the versatility for processing complex products.

[0019] 2. This application can improve the connection tightness between the belt and the driven pulley, ensuring that the belt can still be fully driven by the driven pulley during high-speed rotation, minimizing the risk of belt slippage on the driven pulley, improving the smoothness of stamping, and reducing the risk of machine tool damage. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a novel continuous stamping machine tool involved in this utility model;

[0021] Figure 2 This is a partial schematic diagram of a novel continuous stamping machine tool involved in this utility model;

[0022] Figure 3 This is a cross-sectional schematic diagram of a novel continuous stamping machine tool involved in this utility model.

[0023] Marked in the image:

[0024] 1. Frame; 2. Upper punch; 3. Lower worktable; 4. Drive assembly; 5. Protective cover; 6. Mechanical counting assembly;

[0025] 11. Stamping area; 12. Feeding space; 13. Baffle; 14. Collection area; 15. Clearance hole; 16. Guide post; 17. Slider;

[0026] 31. Discharge hole;

[0027] 41. Crankshaft; 42. Connecting rod; 43. Motor; 44. Drive wheel; 45. Driven wheel; 46. Pressure application component; 47. Rotary joint;

[0028] 61. Second connecting rod; 62. Pressing plate. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component at the same time; when a component is referred to as "connected to" another component, it can be directly connected to the other component or there may be an intervening component at the same time.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In the description of the embodiments of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", and "outer" is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the embodiments of this utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0033] To more clearly illustrate the technical solution of this utility model, a preferred embodiment is provided below for reference. Figures 1-3 A novel continuous stamping machine tool includes a frame 1, an upper punch 2, a lower worktable 3, and a drive assembly 4, wherein:

[0034] The frame 1 has a stamping area 11 in the middle of the frame and a feeding space 12 in the front-to-back direction.

[0035] The lower worktable 3 and the upper punch 2 are both located in the stamping area 11, and the lower worktable 3 is located below the upper punch 2. The lower worktable 3 is fixedly connected to the frame 1, and the upper punch 2 is slidably connected to the frame 1.

[0036] The drive assembly 4 is located above the upper punch 2 and includes a crankshaft 41, a connecting rod 42, a motor 43, a drive pulley 44, a driven pulley 45, a belt, and at least one pressure member 46. The crankshaft 41 is rotatably connected to the frame 1. One end of the connecting rod 42 is connected to the eccentric part of the crankshaft 41, and the other end is movably connected to the upper punch 2. The motor 43 is fixedly connected to the frame 1. The drive pulley 44 is fixedly connected to the output end of the motor 43. The driven pulley 45 is fixedly connected to one end of the crankshaft 41. The belt drives the drive pulley 44 and the driven pulley 45 together. At least one pressure member 46 is located outside the driven pulley 45 and is rotatably connected to the frame 1. The distance between the outer wall of the at least one pressure member 46 and the outer wall of the driven pulley 45 is less than the thickness of the belt so that the pressure member 46 is in close contact with the belt.

[0037] The working process of the novel continuous stamping machine tool involved in this utility model is as follows: the upper die assembly and the lower die assembly of the stamping die are respectively installed on the upper punch 2 and the lower worktable 3. The feeding mechanism realizes the conveying of the material strip. The stamping area 11 can realize the cross-transmission of two material strips. One material strip is conveyed from left to right in the stamping area 11, and the other material strip enters the stamping area 11 along the loading space 12 and can be conveyed from back to front. In this way, the two material strips are pressed together during the stamping process to meet the processing requirements of different workpieces. Understandably, the stamping speed of a stamping machine will be adjusted appropriately based on differences in material strip thickness, product precision requirements, etc., to ensure maximum efficiency. In this embodiment, by adding a pressure member 46 to apply pressure to the belt toward the driven pulley 45, the connection tightness between the belt and the driven pulley 45 is improved, ensuring that the belt can still be fully driven by the driven pulley 45 during high-speed rotation, minimizing the risk of the belt slipping on the driven pulley 45, improving the smoothness of stamping, and reducing the risk of machine tool damage.

[0038] Preferably, the surface of the driven pulley 45 is roughened to form a rough surface, and at least a portion of the belt contacts the rough surface, thereby increasing the friction between the belt and the driven pulley 45 and further reducing the risk of the belt slipping relative to the driven pulley 45.

[0039] In some embodiments, there are two pressure-applying members 46, with at least two pressure-applying members 46 symmetrically arranged on both sides of the driven wheel 45.

[0040] It is understandable that during the high-speed rotation of the driven pulley 45, the belt and the driven pulley 45 will heat up due to friction. Therefore, in some embodiments, a cooling chamber is formed inside the pressure-applying member 46, and at least one end of the member is connected to a rotary joint 47. The rotary joint 47 is provided with a water inlet and a water outlet communicating with the cooling chamber. Condensate can be continuously introduced into the cooling chamber to keep the pressure-applying member 46 at a low temperature. The heat exchange between the pressure-applying member 46 and the belt enables rapid heat dissipation from the belt, thereby reducing the belt aging rate and increasing the belt's service life.

[0041] In some embodiments, the novel continuous stamping machine tool also includes a protective cover 5, which is mounted on the frame 1. The drive wheel 44, driven wheel 45, and belt are all located inside the protective cover 5, and one end of the pressure applying component 46 is connected to the protective cover 5. While protecting the drive wheel 44, driven wheel 45, belt, and other components, the protective cover 5 also provides a fulcrum for the other end of the pressure applying component 46, improving the stability of the pressure applying component 46.

[0042] Furthermore, at least one ventilation structure is formed on the shield 5 to allow air to circulate within the shield 5, thereby improving the heat dissipation effect of the belt, drive pulley 44, and driven pulley 45.

[0043] In some embodiments, the novel continuous stamping machine further includes a mechanical counting assembly 6, which includes a second connecting rod 61, a pressing plate 62, and a pressing counter. The pressing plate 62 is positioned above the crankshaft 41 and slidably connected to the frame 1. One end of the second connecting rod 61 is connected to the eccentric portion of the crankshaft 41, and the other end is slidably connected to the pressing plate 62. The pressing counter is mounted on the frame 1, and during the upward movement of the pressing plate 62, it presses the trigger end of the pressing counter to complete one count. This mechanical counting method is more accurate.

[0044] In some embodiments, a partition 13 is detachably mounted on the frame 1 to separate the loading space 12 from the stamping area 11. When the punch press only needs to stamp a single strip of material, the partition 13 can be mounted on the frame 1 to prevent waste or other debris from entering the loading space 12 and causing cleaning difficulties.

[0045] In some embodiments, a discharge hole 31 is formed in the middle of the lower worktable 3, and a clearance hole 15 is formed in the machine tool at the position corresponding to the discharge hole 31. The stamped product can be discharged downward through the discharge hole 31 and the clearance hole 15.

[0046] In some embodiments, the frame 1 has a collection area 14 extending in the front-rear direction below the clearance hole 15. The collection area 14 is used to place a collection box to collect products falling along the discharge hole 31 and the clearance hole 15.

[0047] In some embodiments, the frame 1 is provided with two guide posts 16 between the feeding space 12, and the upper punch 2 is provided with a slider 17 that is slidably connected to the guide posts 16. The center distance between the two guide posts 16 is widened and the slider 17 is enlarged, making the sliding of the upper punch 2 more stable; and the feeding space 12 is left between the two guide posts 16, realizing the discharge in the front-back direction.

[0048] The above description is only a preferred embodiment of the present utility model, and its structure is not limited to the shapes listed above. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel continuous stamping machine tool, characterized in that: Includes a frame, upper punch, lower worktable, and drive assembly, wherein: The frame has a stamping area in the middle that runs in the left-right direction, and a feeding space in the front-back direction is provided behind the stamping area. The lower worktable and the upper punch are both located within the stamping area, with the lower worktable positioned below the upper punch. The lower worktable is fixedly connected to the frame, and the upper punch is slidably connected to the frame. The drive assembly is located above the upper punch and includes a crankshaft, a connecting rod, a motor, a drive pulley, a driven pulley, a belt, and at least one pressure-applying component. The crankshaft is rotatably connected to the frame. One end of the connecting rod is connected to the eccentric portion of the crankshaft, and the other end is movably connected to the upper punch. The motor is fixedly connected to the frame. The drive pulley is fixedly connected to the output end of the motor. The driven pulley is fixedly connected to one end of the crankshaft. The belt drives the drive pulley and the driven pulley together. At least one pressure-applying component is located outside the driven pulley and rotatably connected to the frame. The distance between the outer wall of at least one pressure-applying component and the outer wall of the driven pulley is less than the thickness of the belt, so that the pressure-applying component is in close contact with the belt.

2. The novel continuous stamping machine tool according to claim 1, characterized in that: There are two pressure-applying components, and at least two pressure-applying components are symmetrically arranged on both sides of the driven wheel.

3. The novel continuous stamping machine tool according to claim 1, characterized in that: The pressure-applying component has a cooling chamber inside, and at least one end of it is connected to a rotary joint. The rotary joint is provided with a water inlet and a water outlet that communicate with the cooling chamber.

4. The novel continuous stamping machine tool according to claim 1, characterized in that: It also includes a protective cover, which is mounted on the frame. The drive wheel, the driven wheel and the belt are all located inside the protective cover, and one end of the pressure-applying member is connected to the protective cover.

5. The novel continuous stamping machine tool according to claim 1, characterized in that: A partition is detachably mounted on the frame to separate the feeding space from the stamping area.

6. The novel continuous stamping machine tool according to claim 1, characterized in that: A discharge hole is formed in the middle of the lower worktable, and an avoidance hole is formed in the machine tool at the position corresponding to the discharge hole.

7. The novel continuous stamping machine tool according to claim 6, characterized in that: The frame has a collection area extending in the front-to-back direction below the clearance hole.

8. The novel continuous stamping machine tool according to claim 1, characterized in that: The frame is provided with two guide pillars between the feeding space, and the upper punch is provided with a slider that is slidably connected to the guide pillars.

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