Uniform and continuous punching device for disc

Abstract

The utility model discloses a disc uniform continuous punching device which comprises a punching table, the upper end of the punching table is rotationally connected with a rotating shaft, a ratchet wheel is fixed to the periphery of the rotating shaft, a plurality of notches are formed in the outer ring of the rotating shaft along the circumference of the rotating shaft, and a limiting assembly fixed to the punching table is arranged at the front end of the rotating shaft. A punching assembly fixed to the punching table is arranged at the right end of the rotating shaft, a die handle, an upper cushion plate, a buffering cushion and a material returning plate are connected through a material returning rod, a lower die plate and a lower cushion plate are connected through a connecting pin, and meanwhile the upper cushion plate, the buffering cushion, the material returning plate, the lower die plate, the lower cushion plate and a fixing base are connected through taper pins. The device plays a guiding role in the punching process, all parts of the device are positioned through the taper pins, the die precision is guaranteed, the taper pins are more convenient to disassemble compared with straight pins, the maintainability of the die is improved, and the device is only provided with one punch, is low in machining difficulty and facilitates cutter sharpening, maintenance and repair in the later period.

Description

Technical Field

[0001] The utility model relates to the technical field of punching processing, in particular to a disc uniform and continuous punching device. Background Art

[0002] Punching is mostly thin-sheet processing, stamping, molding, embossing, etc., which forces metal into the active part of the die. During the die design stage, two die structures are considered, one is to punch 24 holes at a time; the other is to punch one hole at a time, and punch 24 times.

[0003] The existing punching device may encounter the following problems when in use:

[0004] 1. When punching 24 holes at a time, the mold structure is more complicated. The shape and position tolerance requirements of 24 punches need to be considered during the mold processing and manufacturing process, which makes the processing difficult. During the use of the mold, if a punch is damaged, when the punch is replaced and repaired, the remaining 23 punches need to be calibrated at the same time to ensure the relative position relationship, and the maintenance process is more complicated.

[0005] 2. The punching dies are connected and fixed by bolts and other means. Due to mutual friction during punching, wear will occur between the dies. It is inconvenient to disassemble and replace the worn dies, and the maintenance is complicated. At the same time, the structure of the indexing and steering mechanism is complicated and cannot be used for punching sheets of different sizes and different hole positions, and the applicability is poor. Utility Model Content

[0006] The purpose of the utility model is to provide a disc uniform and continuous punching device, which solves the above-mentioned problems in the prior art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a disc uniform continuous punching device, comprising a punching table, the upper end of the punching table is rotatably connected to a rotating shaft, a ratchet is fixed to the periphery of the rotating shaft, the outer ring of the rotating shaft is provided with a plurality of notches along its circumference, a limiting component fixed to the punching table is provided at the front end of the rotating shaft, a punching component fixed to the punching table is provided at the right end of the rotating shaft, a fixing frame fixed to the punching table is provided at the right end of the punching component, one end of a double telescopic hydraulic device is fixed to the upper end of the punching component, and the other end of the double telescopic hydraulic device is fixed to the fixing frame;

[0008] The punching assembly includes a die handle, an upper pad is provided at the lower end of the die handle, a buffer pad is provided at the lower end of the upper pad, a stripping plate is provided at the lower end of the buffer pad, a lower template is provided at the lower end of the stripping plate, a lower template is provided at the lower end of the lower template, and a fixed seat is provided at the lower end of the lower pad. The left end of the die handle is provided with two stripping rods distributed front and back along its long side, and the right end of the die handle is provided with two tapered pins distributed front and back along its long side. The tapered pins and the stripping rods are connected to the die handle, the upper pad, the buffer pad and the stripping plate in sequence. The tapered pins penetrate the stripping plate and penetrate into the lower template. The left end of the lower pad is provided with two connecting pins distributed front and back along its long side. The connecting pins connect the lower template and the lower pad. A circular through hole penetrating up and down is provided in the center of the die handle, and a punch is slidably connected in the through hole.

[0009] Preferably, the limiting assembly includes a concave-shaped mounting seat, a pawl is slidably connected to the upper end of the mounting seat, a pin is fixedly connected to the rear end of the pawl, a mounting plate is fixed to the rear end of the mounting seat, the pin passes through the mounting plate, a spring is provided around the pin, the spring is located between the pawl and the mounting plate, and the end of the pin away from the pawl is threadedly connected to an adjusting nut.

[0010] Preferably, a key is provided on the periphery of the rotating shaft along its axial direction, a gasket is provided on the upper end of the rotating shaft, a screw is provided on the upper end of the gasket, and the screw is rotatably connected to the rotating shaft through a thread.

[0011] Preferably, the double telescopic hydraulic device comprises a hydraulic cylinder, a first telescopic rod and a second telescopic rod, the first telescopic rod is fixedly connected to the die handle of the punching assembly, and the second telescopic rod is fixedly connected to the punch of the punching assembly.

[0012] Preferably, the upper pad, the buffer pad, the stripper plate, the lower template, the lower pad and the fixing seat are all provided with through holes corresponding to the punches in the centers thereof.

[0013] Preferably, the material return rod is a telescopic connecting rod.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The die handle, upper pad, buffer pad and stripper plate are connected by the stripper rod, the lower die plate and lower pad are connected by the connecting pin, and the upper pad, buffer pad, stripper plate, lower die plate, lower pad and fixed seat are connected by the taper pin, so that the device plays a guiding role in the stamping process, and the taper pins are used for positioning between the various parts, which not only ensures the accuracy of the die, but also the taper pins are easier to disassemble than the straight pins, which increases the maintainability of the die. The device has only one punch, with low processing difficulty, which is convenient for later sharpening, maintenance and repair.

[0016] 2. Positioning is achieved by engaging the pawl of the punching assembly with the notch of the ratchet. The punching assembly has a simple structure and strong practicality. It can be rotated manually, and the pawl and the notch are used for indexing to ensure accuracy. The limit assembly and the ratchet can adjust the position of the whole according to the actual situation. It is suitable for punching sheets of different sizes and different hole positions. It has strong versatility and is positioned by the key and the axial hole that has been machined on the punching sheet, which improves the positioning accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is an exploded schematic diagram of the punching assembly of the utility model;

[0019] Figure 3 This is a schematic diagram of the interior of the electric limit assembly of the utility model;

[0020] Figure 4 It is a cross-sectional schematic diagram of the punching assembly of the utility model;

[0021] Figure 5 It is an overall schematic diagram of the utility model.

[0022] Explanations in the figure: 1. Punching table; 2. Fixed frame; 3. Double telescopic hydraulic device; 4. Punching assembly; 5. Ratchet; 6. Rotating shaft; 7. Limiting assembly; 301. Hydraulic cylinder; 302. First telescopic rod; 303. Second telescopic rod; 401. Die handle; 402. Upper pad; 403. Buffer pad; 404. Stripping plate; 405. Lower template; 406. Lower pad; 407. Fixed seat; 408. Taper pin; 409. Stripping rod; 410. Connecting pin; 501. Notch; 601. Gasket; 602. Screw; 603. Key; 701. Mounting seat; 702. Ratchet; 703. Mounting plate; 704. Pin; 705. Spring; 706. Adjusting nut; 4011. Punch. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0024] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] See also Figure 1 , Figure 3 and Figure 5A disc uniform continuous punching device comprises a punching table 1, the upper end of the punching table 1 is rotatably connected with a rotating shaft 6, a ratchet 5 is fixed to the periphery of the rotating shaft 6, a plurality of notches 501 are opened along the circumference of the outer ring of the rotating shaft 6, the lower end of the rotating shaft 6 is rotatably connected with the punching table 1 through a bearing, so as to facilitate the rotary punching of the material fixed on the ratchet 5, a limiting component 7 fixed on the punching table 1 is provided at the front end of the rotating shaft 6, and the limiting component 7 is engaged and fixed with the notch 501 on the ratchet 5 to realize the grading of the material, which is conducive to uniform punching on the surface of the material, a punching component 4 fixed on the punching table 1 is provided at the right end of the rotating shaft 6, and a notch 501 on the notch 501 is fixed on the notch 501 of the ratchet 5 to realize the grading of the material, so as to facilitate ... notch 501 is fixed on the notch 501 on the notch 501 on the notch 501 on the notch 501 on the notch 501 on the notch 501 on the notch 501 on the notch 501 on the notch 501 on the notch 501 on the notch 501 on the notch 501 on the notch 501 on the notch 501 on the notch 501 on the notch 50 1, one end of a double telescopic hydraulic device 3 is fixed to the upper end of the punching assembly 4, and the other end of the double telescopic hydraulic device 3 is fixed to the fixed frame 2. The punching sheet is clamped and punched by the punching assembly 4, so that the punching sheet is fixed and punched. The double telescopic hydraulic device 3 adopts a double telescopic form. The double telescopic hydraulic device 3 is telescopic, which is conducive to clamping the punching sheet. After clamping, the punching sheet is punched to prevent the position of the punching sheet from changing when punching, thereby affecting the position of the punching. The double telescopic hydraulic device 3 includes a hydraulic cylinder 301, a first telescopic rod 302 and a second telescopic rod 303. The first telescopic rod 302 is fixedly connected to the die handle 401 of the punching assembly 4, and the second telescopic rod 303 is fixedly connected to the die handle 401 of the punching assembly 4. The telescopic rod 303 is fixedly connected to the punch 4011 of the punching assembly 4. When the double-telescopic hydraulic device 3 is working, the first telescopic rod 302 is extended first, and then drives the punching assembly 4 to clamp and fix the punching sheet. Then the second telescopic rod 303 is extended, driving the second telescopic rod 303 to press down, and then punching the punching sheet. The limiting assembly 7 includes a concave-shaped mounting seat 701, and the upper end of the mounting seat 701 is slidably connected with a pawl 702, and the rear end of the pawl 702 is fixedly connected with a pin 704. The rear end of the mounting seat 701 is fixed with a mounting plate 703, and the pin 704 penetrates the mounting plate 703. A spring 705 is provided on the periphery of the pin 704, and the spring 705 is located Between the pawl 702 and the mounting plate 703, the end of the pin 704 away from the pawl 702 is connected to the adjusting nut 706 through a thread, the periphery of the rotating shaft 6 is provided with a key 603 along its axial direction, the upper end of the rotating shaft 6 is provided with a gasket 601, the upper end of the gasket 601 is provided with a screw 602, and the screw 602 is rotatably connected to the rotating shaft 6 through a thread; the punch is placed on the ratchet 5, and is positioned through the rotating shaft 6 and the key 603 at the center so that the punch is concentric with the rotating shaft 6, and then the punch is fixed by the gasket 601 and the screw 602 to prevent the position of the punch from changing and affecting the punching. At this time, the right-side double telescopic hydraulic device 3 is telescoped to complete a punching operation, and a hole with a diameter of D is processed on the punch;Then, the punch is rotated clockwise, and the punch drives the ratchet 5 to rotate at the same time through the key 603. The pawl 702 is compressed by the force of the ratchet 5, and the pawl 702 retracts into the mounting seat 701; when it rotates to the next notch 501 of the ratchet 5, the spring 705 returns to its original state, driving the pawl 702 to extend out of the mounting seat 701, and a division is completed at this time; the right-side double telescopic hydraulic device 3 is telescoped to complete a stamping operation, and a second hole with a diameter of D is processed on the punch, and 24 holes are processed by analogy. ;

[0027] See also Figure 1 , Figure 2 and Figure 4The punching assembly 4 includes a die handle 401, an upper pad 402 is provided at the lower end of the die handle 401, a buffer pad 403 is provided at the lower end of the upper pad 402, a stripping plate 404 is provided at the lower end of the buffer pad 403, a lower mold plate 405 is provided at the lower end of the stripping plate 404, a lower mold plate 405 is provided at the lower end of the lower mold plate 405, a fixing seat 407 is provided at the lower end of the lower pad 406, two stripping rods 409 distributed front and back are provided at the left end of the die handle 401 along its long side, and two tapered pins 408 distributed front and back are provided at the right end of the die handle 401 along its long side, and the tapered pins 408 and the stripping rods 409 are connected to the die handle 4 in sequence. 01, upper pad 402, buffer pad 403 and stripper plate 404, when the first telescopic rod 302 drives the punching assembly 4 to clamp the punching sheet, the stripper plate 404 contacts the punching sheet and presses down to clamp the punching sheet. When the pressure continues to be pressed down, the buffer pad 403 is deformed, and the stripper rod 409 contracts. When the punching assembly 4 presses down to clamp the punching sheet, the cone pin 408 is inserted into the corresponding holes on the lower template 405 and the lower pad 406, which plays a guiding role in pressing down the punching assembly 4, ensuring the mold accuracy, and the cone pin 408 is easier to disassemble than the straight pin, which increases the maintainability of the mold. Then the second telescopic rod 303 drives the punch 401 1 presses down to punch the punching sheet. When the punching assembly 4 releases the punching sheet, the buffer pad 403 recovers and moves against the stripping plate 404. At the same time, the stripping rod 409 extends to press against the punching sheet to prevent the punching sheet from being stuck on the punch 4011. The cone pin 408 penetrates the stripping plate 404 and penetrates into the lower template 405. The left end of the lower pad 406 is provided with two front and rear distributed connecting pins 410 along its long side. The connecting pin 410 connects the lower template 405 and the lower pad 406. The center of the die handle 401 is provided with a circular through hole that penetrates up and down. The punch 4011 is slidably connected in the through hole. The upper pad 402, the buffer pad 403, and the stripping plate 404 are connected to the punch 4011. 04. The lower template 405, the lower pad 406 and the fixed seat 407 are all provided with through holes corresponding to the punch 4011 in the center. The material return rod 409 is a retractable connecting rod. The material return rod 409 adopts a retractable structure, so that when the punching assembly 4 is pressed down to clamp the punching sheet, the material return rod 409 will not affect the clamping of the punching sheet, and prevent the material return rod 409 from pressing down on the punching sheet to form an indentation. At the same time, the cone pin 408 passes through the material return plate 404 and penetrates into the lower template 405. During the pressing process of the punching assembly 4, the cone pin 408 is inserted into the lower template 405 and the lower pad 406 to prevent the punching assembly 4 from tilting when pressed down, which leads to the inaccurate position of the punching hole.

[0028] When the utility model is used:

[0029] First, place the punch on the ratchet 5, and position it through the central shaft 6 and key 603, so that the punch is concentric with the shaft 6, and place the outer side of the punch between the stripper plate 404 and the lower template 405, and fix the punch with the gasket 601 and screw 602 to prevent the position of the punch from changing and affecting the punching;

[0030] Then, at this time, the right-side double telescopic hydraulic device 3 is telescoped to complete a punching operation, and a hole with a diameter of D is processed on the punching sheet. When the first telescopic rod 302 is extended to drive the punching assembly 4 to clamp the punching sheet, the stripping plate 404 contacts the punching sheet and presses down to clamp the punching sheet. When the downward pressure continues, the buffer pad 403 is deformed, and the stripping rod 409 contracts. When the punching assembly 4 presses down to clamp the punching sheet, the cone pin 408 is inserted into the corresponding holes on the lower template 405 and the lower pad 406, which plays a guiding role in pressing down the punching assembly 4, ensuring the mold accuracy. In addition, the cone pin 408 is easier to disassemble than the straight pin, which increases the maintainability of the mold. Then the second telescopic rod 303 drives the punch 4011 to press down to punch the punching sheet;

[0031] Next, the double telescopic hydraulic device 3 is retracted, and when the punching assembly 4 releases the punch, the buffer pad 403 is restored to move against the stripper plate 404, and at the same time, the stripper rod 409 is extended to press against the punch to prevent the punch from being stuck on the punch 4011;

[0032] Finally, the punch is rotated clockwise, and the punch drives the ratchet 5 to rotate at the same time through the key 603. The pawl 702 is compressed by the force of the ratchet 5, and the pawl 702 retracts into the mounting seat 701. When it rotates to the next notch 501 of the ratchet 5, the spring 705 returns to its original state, driving the pawl 702 to extend out of the mounting seat 701. At this time, one indexing is completed, and the right-side double telescopic hydraulic device 3 is telescoped to complete a stamping operation, and the second hole is processed on the punch, and 24 holes are processed by analogy.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A disc uniform continuous punching device, comprising a punching station (1), characterized in that: The upper end of the punching platform (1) is rotatably connected to a rotating shaft (6), a ratchet (5) is fixed to the periphery of the rotating shaft (6), a plurality of notches (501) are provided on the outer ring of the rotating shaft (6) along its circumference, a limiting assembly (7) fixed to the punching platform (1) is provided at the front end of the rotating shaft (6), a punching assembly (4) fixed to the punching platform (1) is provided at the right end of the rotating shaft (6), a fixing frame (2) fixed to the punching platform (1) is provided at the right end of the punching assembly (4), one end of a double telescopic hydraulic device (3) is fixed to the upper end of the punching assembly (4), and the other end of the double telescopic hydraulic device (3) is fixed to the fixing frame (2); The punching assembly (4) comprises a die handle (401), an upper pad (402) is provided at the lower end of the die handle (401), a buffer pad (403) is provided at the lower end of the upper pad (402), a stripping plate (404) is provided at the lower end of the buffer pad (403), a lower template (405) is provided at the lower end of the stripping plate (404), a lower pad (406) is provided at the lower end of the lower template (405), a fixed seat (407) is provided at the lower end of the lower pad (406), two stripping rods (409) distributed front and rear are provided at the left end of the die handle (401) along its long side, and a stripping rod (409) is provided at the right end of the die handle (401) along its long side. There are two tapered pins (408) distributed front and back, the tapered pins (408) and the material stripping rod (409) are connected to the die handle (401), the upper pad (402), the buffer pad (403) and the material stripping plate (404) in sequence, the tapered pin (408) passes through the material stripping plate (404) and penetrates into the lower mold plate (405), the left end of the lower pad (406) is provided with two connecting pins (410) distributed front and back along its long side, the connecting pin (410) connects the lower mold plate (405) and the lower pad (406), the center of the die handle (401) is provided with a circular through hole passing through from top to bottom, and a punch (4011) is slidably connected in the through hole.

2. A disc uniform continuous punching device according to claim 1, characterized in that: The limiting assembly (7) comprises a concave-shaped mounting seat (701), the upper end of the mounting seat (701) is slidably connected to a pawl (702), the rear end of the pawl (702) is fixedly connected to a pin (704), the rear end of the mounting seat (701) is fixedly connected to a mounting plate (703), the pin (704) passes through the mounting plate (703), a spring (705) is arranged on the periphery of the pin (704), the spring (705) is located between the pawl (702) and the mounting plate (703), and the end of the pin (704) away from the pawl (702) is threadedly connected to an adjusting nut (706).

3. A disc uniform continuous punching device according to claim 1, characterized in that: A key (603) is provided on the periphery of the rotating shaft (6) along its axial direction, a gasket (601) is provided on the upper end of the rotating shaft (6), a screw (602) is provided on the upper end of the gasket (601), and the screw (602) is rotatably connected to the rotating shaft (6) through a thread.

4. A disc uniform continuous punching device according to claim 1, characterized in that: The double telescopic hydraulic device (3) comprises a hydraulic cylinder (301), a first telescopic rod (302) and a second telescopic rod (303), wherein the first telescopic rod (302) is fixedly connected to a die handle (401) of the punching assembly (4), and the second telescopic rod (303) is fixedly connected to a punch (4011) of the punching assembly (4).

5. A disc uniform continuous punching device according to claim 1, characterized in that: The upper pad (402), the buffer pad (403), the stripping plate (404), the lower template (405), the lower pad (406) and the fixing seat (407) are all provided with through holes corresponding to the punch (4011) in the center.

6. A disc uniform continuous punching device according to claim 1, characterized in that: The material-removing rod (409) is a telescopic connecting rod.

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