Feeding and discharging device for punching machine

Abstract

The utility model relates to the technical field of punching machines, in particular to a feeding and discharging device for a punching machine. The feeding assembly comprises a material supporting platform; the conveying assembly comprises a transverse guide rail and a sliding block in sliding fit with the transverse guide rail, an expansion frame is arranged on one side of the sliding block, a cantilever is connected to the lower portion of the expansion frame, and a discharging part and a feeding part are arranged on the cantilever according to a preset interval. Through the arrangement, firstly, automatic production is achieved, the production efficiency is improved, the probability that workers are collided and even squeezed during manual feeding and discharging is reduced, and the personal safety is effectively guaranteed; secondly, the problems that in the prior art, due to the fact that a feeding and discharging device is arranged at the stamping machining position, the wire harness is prone to being extruded and damaged and is inconvenient to maintain are solved, and the service life is effectively prolonged; and finally, the device can adapt to different product types and punching machine types and is not limited to a certain product or punching machine, so that the device is wide in application range and high in applicability.

Description

Technical Field

[0001] This utility model relates to a loading and unloading device for a punch press, belonging to the field of punch press technology. Background Technology

[0002] Punch pressing is a crucial cold working process for sheet metal, widely used in the automotive, electronics, and telecommunications industries. Traditionally, loading and unloading in punch pressing are done manually, resulting in high labor intensity, low production efficiency, and significant safety hazards. With the development of automated production, robotic arms have begun to replace manual labor in these tasks.

[0003] Existing automated loading and unloading robots for punch presses still have some shortcomings. In current technology, robots are typically located inside the punch press at the stamping processing position. Their motion adjustment is cumbersome, they can only adapt to a single type of equipment, and they are difficult to adapt to different product types and equipment. Furthermore, their location at the stamping processing position also presents problems such as easy damage to the wiring harness from compression and difficulties in maintenance, resulting in a shorter service life. In addition, while existing robots can reduce the risk of workers being injured by the punch press by allowing them to load and unload materials themselves, they lack material storage capacity. Workers still need to manually place the raw materials to be stamped one piece at a time at the robot's location, and then the robot loads the materials to the processing position. During this process, workers are still at risk of injury and experience low work efficiency. Therefore, researching a new type of loading and unloading device for punch presses is of great practical significance. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a loading and unloading device for punch presses.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A loading and unloading device for a punch press includes: a frame; a feeding assembly, which includes a material support platform disposed on the frame, the material support platform being used to support the raw material to be punched; a conveying assembly, which includes a transverse guide rail connected above the frame via a guide rail bracket and a slider that slides with the transverse guide rail, an extension frame disposed on one side of the slider, a cantilever connected below the extension frame, the cantilever being located above the material support platform and its extension direction being parallel to the extension direction of the transverse guide rail, and a unloading part for extracting the stamped finished product and an loading part for extracting the raw material to be punched being disposed on the cantilever at predetermined intervals, the cantilever being driven by the slider to reciprocate along the transverse guide rail so that the unloading part and the loading part sequentially enter and exit the stamping processing position.

[0006] Furthermore, a vertical guide rail is provided between the slider and the extension frame. The vertical guide rail is fixedly connected to one side of the slider. The extension frame slides with the vertical guide rail. A telescopic cylinder is also provided on the upper part of the slider. The movable end of the telescopic cylinder is connected to the extension frame. The vertical movement of the extension frame is achieved by extending and retracting the movable end of the telescopic cylinder.

[0007] Furthermore, the loading section and the unloading section have the same structure, both including two connecting arms that are detachably connected to the cantilever. The distance between the two connecting arms of the loading section or the unloading section is adjustable, and both ends of the connecting arms are provided with suction cups.

[0008] Furthermore, the suction cup is a pneumatic suction cup or an electromagnetic suction cup.

[0009] Furthermore, it also includes a support plate, which is disposed inside the frame and located directly below the material support platform. A drive device for raising and lowering the material support platform is installed on the upper surface of the support plate, and the output end of the drive device is connected to the material support platform.

[0010] Furthermore, a set of guiding devices is provided at each of the four corners between the material support platform and the support plate. The guiding device includes a guide column and a linear bearing. One end of the guide column is connected to the material support platform, and the other end passes through the linear bearings at the four corners of the support plate.

[0011] Furthermore, a position sensor is provided on the side of the frame near the transverse guide rail to ensure that the raw material to be stamped is accurately lifted to a preset position.

[0012] Furthermore, the upper surface of the frame is provided with a perforated plate, the perforated plate is provided with a plurality of arrayed limiting holes and the center of the perforated plate is provided with an opening for the material support platform to pass through, each side of the opening is provided with at least one set of material feeding columns, and the bottom of the material feeding column is provided with at least one limiting pin, the limiting pin is inserted into the limiting hole to fix the position of the material feeding column.

[0013] Furthermore, a limit switch for limiting the movement of the extension frame is provided on the transverse guide rail.

[0014] Furthermore, both ends of the connecting arm are provided with waist holes, and the suction cup is detachably connected to the waist holes. The position of the suction cup can be adjusted to accommodate raw materials and finished products of different sizes.

[0015] The beneficial effects of this utility model are:

[0016] The above-mentioned setup serves multiple purposes: First, it enables automated production, improves production efficiency, and reduces the likelihood of workers being bumped or even crushed during manual loading and unloading, effectively ensuring personal safety. Second, it solves the problems of wire harnesses being easily crushed and damaged, and the inconvenience of maintenance caused by setting loading and unloading devices at the stamping processing position in existing technologies, effectively extending service life. Finally, the loading and unloading device described in this application can be flexibly adjusted according to actual conditions, adapting to different product types and punch press types, and is not limited to a certain product or punch press, making it widely applicable and highly adaptable. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the installation position of the loading and unloading device provided in an embodiment of the present utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the loading and unloading device provided in an embodiment of the present utility model;

[0019] Figure 3 This is a right view of the loading and unloading device provided in an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of the material handling column structure provided in an embodiment of the present invention.

[0021] Attached reference numerals: 01, punch press; 02, finished product placement station; 1, frame; 2, material support platform; 4, transverse guide rail; 5, slider; 6, extension frame; 7, cantilever; 8, loading section; 9, unloading section; 10, vertical guide rail; 11, telescopic cylinder; 12, connecting arm; 13, suction cup; 15, waist hole; 16, support plate; 17, guide column; 18, linear bearing; 19, position sensor; 20, perforated plate; 21, material handling column; 22, limit pin; 23, limit switch. Detailed Implementation

[0022] The specific embodiments of this utility model are described in detail below. This utility model can be implemented in many ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used is for describing particular embodiments only and is not intended to limit the scope of this invention.

[0024] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do 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, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Example:

[0027] like Figure 1-3As shown, this utility model provides a loading and unloading device for a punch press, including: a frame 1; a feeding assembly, which includes a material support platform 2 disposed on the frame 1, the material support platform 2 being used to support the raw material to be punched; a conveying assembly, which includes a transverse guide rail 4 connected above the frame 1 via a guide rail bracket and a slider 5 slidably engaged with the transverse guide rail 4. It is understood that a driving assembly for driving the slider 5 to move is also provided on one side of the transverse guide rail 4. The driving assembly is a conventional technique in the art and will not be described in detail here. An extension frame 6 is detachably connected to one side of the slider 5. The extension frame 6 is L-shaped, and a cantilever 7 is detachably connected to the bottom of the extension frame 6. The cantilever 7 is located above the material support platform 2 and its extension direction is parallel to the extension direction of the transverse guide rail 4. The cantilever 7 is provided with a feeding part 9 for extracting stamped finished products and a feeding part 8 for extracting raw materials to be stamped at predetermined intervals. The interval between the feeding part 8 and the feeding part 9 can be flexibly set according to the distance between the material support platform 2 and the stamping processing position during actual use. The cantilever 7 is driven to reciprocate along the transverse guide rail 4 by the slider 5 so that the feeding part 9 and the feeding part 8 enter and exit the stamping processing position in sequence. It is understood that the loading and unloading device described in this application is located on one side of the punch press 01. First, the loading section 8 picks up the raw material to be stamped. Then, the slider 5 drives the cantilever 7 to move towards the punch press 01 via the extension frame 6. After the unloading section 9 moves to the stamping position, the unloading section 9 picks up the stamped finished product. Then, the slider 5 continues to drive the cantilever 7 to move towards the punch press 01. The unloading section 9 leaves the stamping position and passes through the punch press 01 to the finished product placement position 02. At this time, the loading section 8 is located at the stamping position. Then, the loading section 8 releases the material to the stamping position while the unloading section 9 releases the material to the finished product placement position 02. Then, the slider 5 drives the cantilever 7 to move back to the initial position, thus completing one automatic loading and unloading process. It should be noted that the loading and unloading device described in this application controls the above operation process through a PLC control system well known to those skilled in the art.

[0028] The above-mentioned setup serves multiple purposes: First, it enables automated production, improves production efficiency, and reduces the likelihood of workers being bumped or even crushed during manual loading and unloading, effectively ensuring personal safety. Second, it solves the problems of wire harnesses being easily crushed and damaged, and the inconvenience of maintenance caused by setting loading and unloading devices at the stamping processing position in existing technologies, effectively extending service life. Finally, the loading and unloading device described in this application can be flexibly adjusted according to actual conditions, adapting to different product types and punch press types, and is not limited to a certain product or punch press, making it widely applicable and highly adaptable.

[0029] Specifically, such as Figure 2-3As shown, a vertical guide rail 10 is provided between the slider 5 and the extension frame 6. The vertical guide rail 10 is fixedly connected to one side of the slider 5, and the extension frame 6 is slidably engaged with the vertical guide rail 10. A telescopic cylinder 11 is also provided on the upper part of the slider 5. The movable end of the telescopic cylinder 11 is connected to the extension frame 6, and the vertical movement of the extension frame 6 is achieved by extending and retracting the movable end of the telescopic cylinder 11. With this configuration, the loading and unloading device of this application can move in four positions: up, down, left, and right, further improving its applicability.

[0030] Specifically, such as Figure 1-3 As shown, the loading section 8 and the unloading section 9 have the same structure, both including two connecting arms 12 detachably connected to the cantilever 7. The distance between the two connecting arms 12 of the loading section 8 or the unloading section 9 is adjustable, and each end of the connecting arm 12 is provided with a suction cup 13. The suction cup 13 is a pneumatic suction cup or an electromagnetic suction cup. Preferably, the extension direction of the connecting arm 12 is perpendicular to the extension direction of the cantilever 7, and the connecting arm 12 is located on the upper side of the cantilever 7. The distance between the two connecting arms 12 of the loading section 8 or the unloading section 9 is adjustable, specifically by providing several screw holes on the cantilever 7 and fastening them with locking nuts provided on the connecting arms 12. Since the adjustment method is a conventional technical means in this field, it will not be described in detail here. Both ends of the arm 12 are provided with waist holes 15, and the suction cup 13 is detachably connected to the waist holes 15. By adjusting the position of the suction cup 13, it can be adapted to raw materials and finished products of different sizes. With the above settings, while ensuring the adsorption strength, by setting the connecting arm 12 on the upper side of the cantilever 7, the pressure bearing capacity of the connecting arm 12 is improved, making it suitable for heavier raw materials to be stamped and stamped finished products. At the same time, because the raw material to be stamped is a metal plate, the material support platform 2 can hold more raw materials to be stamped, which helps to reduce the frequency of manual loading onto the loading platform. Furthermore, by setting the connecting arm 12 to have an adjustable spacing, the applicability of the loading and unloading device described in this application can be further improved.

[0031] Specifically, such as Figure 3As shown, the system also includes a support plate 16, which is disposed inside the frame 1 and located directly below the material support platform 2. A drive device for raising and lowering the material support platform 2 is mounted on the upper surface of the support plate 16, and the output end of the drive device is connected to the material support platform 2. It should be noted that the drive device is any of the pneumatic telescopic cylinder, electric telescopic cylinder, or hydraulic telescopic cylinder well known to those skilled in the art, and will not be described in detail here. By driving the raising and lowering of the material support platform 2 through the drive device, the raw materials to be stamped placed on the material support platform 2 can reach the extraction position of the loading section 8 in a timely manner as the material support platform 2 rises, further improving the degree of automation and avoiding the need for the loading section 8 to move up and down to extract the raw materials to be stamped, thus further improving work efficiency.

[0032] Specifically, such as Figure 3 As shown, a set of guiding devices is provided at each of the four corners between the material support platform 2 and the support plate 16. Each guiding device includes a guide post 17 and a linear bearing 18. One end of the guide post 17 is connected to the material support platform 2, and the other end passes through the linear bearings 18 at the four corners of the support plate 16. The guide post 17 reciprocates within the linear bearings 18 as the material support platform 2 rises and falls. This arrangement further ensures accurate positioning of the raw material to be stamped, solving the problem of increased scrap rate due to changes in the position of the raw material.

[0033] Specifically, such as Figure 3 As shown, in order to further ensure that the raw material to be stamped is raised to the preset position by the material support platform 2, a position sensor 19 is provided on the side of the frame 1 near the transverse guide rail 4. The position sensor 19 is used to ensure that the raw material to be stamped is accurately lifted to the preset position.

[0034] Specifically, such as Figure 1-4 As shown, the upper surface of the frame 1 is provided with a perforated plate 20. The perforated plate 20 has a plurality of arrayed limiting holes and an opening at its center to accommodate the passage of the material support platform 2. Each side of the opening is provided with at least one set of material feeding columns 21. The bottom of each material feeding column 21 is provided with at least one limiting pin 22. The limiting pin 22 is inserted into the limiting hole to fix the position of the material feeding column 21. The material feeding column 21 abuts against the raw material to be stamped stacked on the material support platform 2. Through this setting, the stacking position of the raw material to be stamped can be further limited during the rising process of the material support platform 2, preventing the lower layer of raw material to be stamped from changing position when the loading part 8 is lifted, thus ensuring the stamping accuracy and maintaining automated operation.

[0035] Specifically, such as Figure 3As shown, a limit switch 23 for limiting the movement of the extension frame 6 is provided on the transverse guide rail 4. The limit switch 23 can be any of the following: non-instantaneous contact action, instantaneous contact action, micro switch, contactless limit switch 23, or semiconductor limit switch 23. The main function of the limit switch 23 here is to limit the travel of the extension frame 6 on the transverse guide rail 4, thereby further ensuring operational stability.

[0036] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are exhaustively listed. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0037] For those skilled in the art, various modifications and improvements can be made without departing from the concept of this utility model, and these modifications and improvements are all within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims.

Claims

1. A loading and unloading device for a punch press, characterized in that, The utility model relates to a stamping machine, including: a rack; a feeding assembly including a material supporting platform arranged on the rack, the material supporting platform being used to support raw materials to be stamped; a conveying assembly arranged outside the stamping machine and entering the stamping position in the stamping machine only when feeding or discharging, the conveying assembly including a transverse guide rail connected to the top of the rack through a guide rail support and a sliding block in sliding cooperation with the transverse guide rail, one side of the sliding block being provided with an extension frame, a cantilever being connected below the extension frame, the cantilever being located above the material supporting platform and extending in a direction parallel to the transverse guide rail, a discharging part for extracting finished products and a feeding part for extracting raw materials to be stamped being arranged on the cantilever at predetermined intervals, the cantilever being driven by the sliding block to move back and forth along the transverse guide rail so that the discharging part and the feeding part enter or exit the stamping position in turn; a support plate being arranged inside the rack and located directly below the material supporting platform, a driving device for lifting the material supporting platform being mounted on the upper surface of the support plate, the output end of the driving device being connected to the material supporting platform; a set of guide devices being arranged at four corners between the material supporting platform and the support plate, the guide devices including guide columns and linear bearings, one end of the guide columns being connected to the material supporting platform and the other end being arranged in the linear bearings at the four corners of the support plate; a position sensor being arranged on one side of the rack near the transverse guide rail, the position sensor being used to ensure that the raw materials to be stamped are accurately lifted to a preset position; a hole plate being arranged on the upper surface of the rack, the hole plate including a plurality of limit holes arranged in an array and an opening in the center of the hole plate for accommodating the material supporting platform, not less than one set of material arranging columns being arranged on each side of the opening, not less than one limit pin being arranged at the bottom of each material arranging column, the limit pin being inserted into the limit hole to fix the position of the material arranging column.

2. The feeding and blanking device for punch according to claim 1, characterized in that, a vertical guide rail being arranged between the sliding block and the extension frame, the vertical guide rail being fixedly connected to one side of the sliding block, the extension frame being in sliding cooperation with the vertical guide rail, a telescopic cylinder being further arranged on the upper part of the sliding block, the movable end of the telescopic cylinder being connected to the extension frame, the vertical movement of the extension frame being realized through the extension and retraction of the movable end of the telescopic cylinder.

3. The feeding and blanking device for punch according to claim 1 or 2, characterized in that, the feeding part and the discharging part being identical in structure and including two connecting arms detachably connected to the cantilever, the distance between the two connecting arms of the feeding part or the discharging part being adjustable, and a suction cup being arranged at the two ends of each connecting arm.

4. The feeding and blanking device for punch according to claim 3, characterized in that, the suction cup being a pneumatic suction cup or an electromagnetic suction cup.

5. The feeding and blanking device for punch according to claim 1, characterized in that, a travel switch being arranged on the transverse guide rail for limiting the travel of the extension frame.

6. The feeding and blanking device for punch according to claim 3, characterized in that, a waist hole being arranged at the two ends of each connecting arm, the suction cup being detachably connected in the waist hole, and the position of the suction cup being adjusted to adapt to raw materials and finished products of different sizes.

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