Stamping machine capable of automatic blanking

Abstract

This invention discloses an automatic unloading stamping machine, comprising: a frame with an upper and lower die plate, having a material picking position and a material unloading position; an upper mounting base and a lower mounting base, mounted on the upper and lower die plates; a rotating sleeve, rotatable around its own axis, with a guide groove on its outer surface and a mating hole inside, the guide groove communicating with the mating hole; a lifting rod with a guide post extending into the guide groove and slidingly engaging with it; and an unloading assembly mounted on the rotating sleeve; wherein the extension trajectory of the guide groove along its length is configured such that the unloading assembly can oscillate back and forth between the material picking position and the material unloading position when the upper die plate reciprocates. This invention enables automatic unloading after stamping, improving production efficiency, effectively preventing collisions between the unloading assembly and the upper die plate, preventing equipment damage, and reducing production costs by eliminating the need for a robotic arm and complex control programs.

Description

Technical Field

[0001] This invention relates to the field of stamping equipment, and in particular to a stamping press with automatic material feeding capability. Background Technology

[0002] Compared to traditional machining, stamping offers advantages such as material and energy savings, high efficiency, and lower operator skill requirements. Furthermore, stamping can produce products that are impossible to manufacture using traditional dies, thus its applications are becoming increasingly widespread.

[0003] Materials used in the stamping process are typically dropped naturally or by air blowing. This results in materials emerging from the press with a random and disorganized orientation and position. For materials with strict appearance requirements, such as those needing no surface damage or requiring neat stacking for packaging, these dropping processes are unsuitable. Another option is a stamping press equipped with a robotic arm to grasp the material. However, this method has two drawbacks: firstly, the production cost of equipping the robotic arm is high; secondly, this method requires the robotic arm to be programmed with complex controls to perfectly coordinate with the stamping press, otherwise, collisions between the robotic arm and the press can easily damage the equipment. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a stamping press with automatic unloading capability, which can realize automatic unloading after stamping, improve production efficiency, prevent collisions between the unloading parts and the stamping press, prevent equipment damage, and reduce production costs.

[0005] According to an embodiment of the present invention, a stamping machine capable of automatic material feeding includes: a frame, provided with an upper template and a lower template, the upper template being reciprocable relative to the lower template in a vertical direction, the frame having a material picking position and a material feeding position; an upper mounting base and a lower mounting base, respectively mounted on the upper template and the lower template; a rotating sleeve, disposed on the lower mounting base, the rotating sleeve being rotatable around its own axis, a guide groove being formed on the outer surface of the rotating sleeve, and a mating hole being formed in the interior of the rotating sleeve in a vertical direction, the guide groove communicating with the mating hole; and a lifting rod, disposed on the upper mounting base. The upper mold plate has a seat, wherein the lifting rod extends into the mating hole and can slide along the axial direction of the mating hole under the drive of the upper mold plate. The lifting rod is horizontally provided with a guide post, which extends into the guide groove and slides with the guide groove. The guide groove extends at least partially in a non-vertical direction. The lower mold plate has a feeding assembly, which is installed on the rotating sleeve and can rotate synchronously with the rotating sleeve. The feeding assembly is used to pick up and put down materials. The length extension trajectory of the guide groove is configured such that when the upper mold plate reciprocates, the feeding assembly can swing back and forth between the picking position and the putting position.

[0006] It has at least the following beneficial effects: During the process of the upper die completing the stamping and moving upward away from the lower die, the lifting rod moves upward synchronously with the upper die. During the upward movement of the lifting rod, the guide column on the lifting rod moves upward synchronously. Since the guide column slides with the guide groove, the rise of the guide column will drive the rotating sleeve to rotate. Since the extension trajectory of the guide groove in the length direction is configured so that the unloading component can swing back and forth between the picking position and the unloading position when the upper die moves back and forth, the rotation of the rotating sleeve can drive the unloading component to move from the unloading position to the picking position. After the unloading component rotates to the picking position, it can pick up the material. When the upper die moves downward to perform the next stamping process, the lifting rod can move downward synchronously with the upper die. During the downward movement of the lifting rod, the guide column on the lifting rod moves downward synchronously. Therefore, the descent of the guide column will drive the rotating sleeve to rotate in the opposite direction. At this time, the rotation of the rotating sleeve can drive the unloading component to swing in the opposite direction from the picking position to the unloading position. After the unloading component rotates to the unloading position, it can place the material on the material tray or the conveyor belt, etc. In summary, during the stamping process of the upper die, the unloading component can automatically move out of the material-retrieving position to release the material. When the upper die completes the stamping process, the unloading component can automatically move into the material-retrieving position to retrieve the material. That is, the unloading component can automatically swing in coordination with the stamping action of the upper die, effectively preventing collisions between the unloading component and the upper die. This invention provides an automatic unloading stamping machine that can automatically retrieve materials after stamping, improving production efficiency and effectively preventing collisions between the unloading component and the upper die, thus preventing equipment damage. Furthermore, since it eliminates the need for a robotic arm and complex control programs, production costs can be reduced.

[0007] According to some embodiments of the present invention, the extension trajectory of the guide groove in the length direction has a curved segment, and the curved segment is at least partially a right-hand helix.

[0008] According to some embodiments of the present invention, the device further includes a lifting drive block, a lifting driven block, and a base. The base is disposed on the lower mounting seat and has a horizontally arranged sliding groove. The lifting drive block is disposed on the base and can slide along the sliding groove. A first return spring is horizontally arranged between the lifting drive block and the base. The lifting drive block has a first central hole, and the lifting driven block has a second central hole. A protrusion is provided on the inner wall of the first central hole, and the protrusion has a first inclined surface. The lifting rod has a vertically arranged clearance groove, and the end of the clearance groove near the guide post has a second inclined surface that can cooperate with the first inclined surface. The rod passes through the first central hole and the second central hole, and the protrusion extends into the clearance groove. The rotating sleeve is rotatably disposed within the base and can slide vertically. The lifting driven block is disposed within the base and can slide vertically. The lifting drive block and the lifting driven block are respectively provided with a third inclined surface and a fourth inclined surface that can cooperate with each other. The lifting drive block can slide horizontally with the cooperation of the first inclined surface and the second inclined surface. The lifting driven block can slide vertically with the cooperation of the third inclined surface and the fourth inclined surface. The lifting driven block can drive the rotating sleeve to slide vertically. The feeding assembly moves synchronously with the rotating sleeve.

[0009] According to some embodiments of the present invention, a second return spring is further included, which is disposed in the base and located below the rotating sleeve, and the second return spring can drive the rotating sleeve to slide upward.

[0010] According to some embodiments of the present invention, a first thrust bearing is fitted at the bottom of the rotating sleeve, the end of the second return spring abuts against the first thrust bearing, and a second thrust bearing is fitted at the top of the rotating sleeve, the second thrust bearing being located below the lifting driven block.

[0011] According to some embodiments of the present invention, a plurality of balls are also included, the balls being located between the lifting drive block and the base.

[0012] According to some embodiments of the present invention, the base includes a base body, a limiting sleeve, and a limiting cover plate. The base body is fixedly mounted on the lower mounting base. The limiting sleeve is detachably mounted on the base body. The limiting cover plate is fastened to the limiting sleeve. The ball bearing is located between the lifting drive block and the limiting cover plate. The sliding groove is located inside the limiting cover plate. The lifting drive block is provided with a sliding rail that slides with the sliding groove. The unloading assembly extends out of the limiting sleeve.

[0013] According to some embodiments of the present invention, the unloading assembly includes an mounting arm, a picking arm, a telescopic adjusting rod, and a picking head. The picking head is disposed on the picking arm and can pick up and place materials. The mounting arm is fixed on the rotating sleeve. The two ends of the telescopic adjusting rod are respectively connected to the mounting arm and the picking arm. The horizontal distance between the mounting arm and the picking arm can be adjusted along the axial direction of the telescopic adjusting rod.

[0014] According to some embodiments of the present invention, the pick-up head is a negative pressure suction head, and the negative pressure suction head is connected to a negative pressure source.

[0015] According to some embodiments of the present invention, the feeding assembly is provided with a sensor, which is used to detect whether the feeding assembly has picked up the material at the material picking position.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure after hiding the upper and lower templates in an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the upper and lower templates under stamping conditions according to an embodiment of the present invention;

[0021] Figure 4 for Figure 2 Exploded view;

[0022] Figure 5 This is a structural schematic diagram of the rotating sleeve, the feeding assembly, and the lifting rod in the assembled state according to an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the lifting rod in an embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of the rotating sleeve in an embodiment of the present invention;

[0025] Figure 8 This is an exploded view of the base in an embodiment of the present invention;

[0026] Figure 9 This is a schematic diagram of the structure of the limiting cover plate in an embodiment of the present invention;

[0027] Figure 10This is a schematic diagram of the structure of the base body in an embodiment of the present invention;

[0028] Figure 11 This is a schematic diagram of the structure of one side of the lifting drive block in an embodiment of the present invention;

[0029] Figure 12 This is a schematic diagram of the structure on the other side of the lifting drive block in an embodiment of the present invention;

[0030] Figure 13 This is a schematic diagram of the lifting driven block in an embodiment of the present invention;

[0031] Figure 14 This is an exploded view of the feeding assembly in an embodiment of the present invention.

[0032] Icon labels:

[0033] Upper template 100, upper mounting base 110;

[0034] Lower template 200, lower mounting base 210;

[0035] Rotating sleeve 300, guide groove 310, curved section 311, straight section 312, mating hole 320, first thrust bearing 330, second thrust bearing 340;

[0036] Lifting rod 400, guide column 410, clearance groove 420, second inclined surface 421, guide column hole 430;

[0037] Material feeding assembly 500, mounting arm 510, picking arm 520, telescopic adjusting rod 530, picking head 540, sensor 550;

[0038] Lifting drive block 600, first center hole 610, protrusion 611, first inclined surface 612, first return spring 620, third inclined surface 630, ball groove 640, ball 650, slide rail 660;

[0039] Lifting driven block 700, second center hole 710, fourth inclined surface 720;

[0040] Base 800, base body 810, mounting hole 811, limit sleeve 820, limit groove 821, limit cover plate 830, slide groove 831, third center hole 832, second reset spring 840. Detailed Implementation

[0041] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0042] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0043] In the description of this invention, the use of terms such as first, second, third, and fourth is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0044] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0045] Reference Figures 1 to 14 The present invention discloses a stamping machine with automatic material feeding, including a frame, an upper mounting base 110, a lower mounting base 210, a rotating sleeve 300, a lifting rod 400, and a material feeding assembly 500.

[0046] Among them, such as Figures 1 to 7 As shown, the frame (not shown) is provided with an upper template 100 and a lower template 200. The upper template 100 can reciprocate vertically relative to the lower template 200 to perform a stamping action. The frame has a material pick-up position and a material unload position. The upper mounting base 110 and the lower mounting base 210 are respectively mounted on the upper template 100 and the lower template 200. The rotating sleeve 300 is disposed on the lower mounting base 210 and can rotate around its own axis. The outer surface of the rotating sleeve 300 is provided with a guide groove 310, and the interior of the rotating sleeve 300 is provided with a mating hole 320 along the vertical direction. The guide groove 310 communicates with the mating hole 320. The guide groove 310 is at least partially along the non-linear direction. The lifting rod 400 extends vertically and is mounted on the upper mounting base 110. The lifting rod 400 extends into the mating hole 320 and can slide along the axial direction of the mating hole 320 under the drive of the upper template 100. The lifting rod 400 is horizontally provided with a guide post 410, which extends into the guide groove 310 and slides with the guide groove 310. The feeding component 500 is mounted on the rotating sleeve 300 and can rotate synchronously with the rotating sleeve 300. The feeding component 500 is used to pick up and put down materials. The extension trajectory of the guide groove 310 in the length direction is configured such that when the upper template 100 moves back and forth, the feeding component 500 can swing back and forth between the picking position and the feeding position.

[0047] Understandably, as the upper template 100 completes the stamping and moves upward to move away from the lower template 200, the lifting rod 400 moves upward synchronously with the upper template 100. During this upward movement, the guide column 410 on the lifting rod 400 moves upward synchronously. Since the guide column 410 slides with the guide groove 310, the rise of the guide column 410 drives the rotating sleeve 300 to rotate. Because the extension trajectory of the guide groove 310 is configured such that the unloading assembly 500 can swing back and forth between the picking position and the discharging position when the upper template 100 reciprocates, the rotation of the rotating sleeve 300 can drive the unloading assembly 500 to move from the discharging position to the picking position. After rotating to the picking position, the unloading assembly 500 can pick up the material. Figure 1 The diagram shows the structure of the feeding assembly 500 when it is in the material-taking position. When the upper template 100 moves downwards for the next stamping process, the lifting rod 400 moves downwards synchronously with it. During this downward movement, the guide column 410 on the lifting rod 400 moves downwards simultaneously. Therefore, the descent of the guide column 410 drives the rotating sleeve 300 to rotate in the opposite direction. This rotation of the rotating sleeve 300 causes the feeding assembly 500 to swing in the opposite direction from the material-taking position to the material-discharging position. After rotating to the material-discharging position, the feeding assembly 500 can place the material onto a tray or conveyor belt, etc. Figure 2 The diagram shows the structure of the unloading component 500 in the feeding position after the upper die 100 and lower die 200 are hidden. In summary, when the upper die 100 is stamping, the unloading component 500 can automatically move out of the feeding position to feed the material; when the upper die 100 finishes stamping, the unloading component 500 can automatically move into the feeding position to pick up the material. That is, the unloading component 500 can automatically swing in coordination with the stamping action of the upper die 100, effectively preventing collisions between the unloading component 500 and the upper die 100. This invention provides an automatic unloading stamping machine that can automatically pick up materials after stamping, improving production efficiency and effectively preventing collisions between the unloading component 500 and the upper die 100, thus preventing equipment damage. Furthermore, since it eliminates the need for a robotic arm and complex control programs, production costs are reduced.

[0048] It is understood that the material picking position in the embodiments of the present invention may be located between the upper template 100 and the lower template 200, and the material feeding position may be located to the side of the upper template 100 and the lower template 200. Figure 1 In the middle, the unloading component 500 can rotate counterclockwise to swing from the material picking position to the material discharging position. Figure 2In this system, the feeding component 500 can rotate clockwise to swing from the feeding position to the picking position. The feeding position can be equipped with a conveyor belt to receive materials, which can transport the received materials sequentially to prevent stacking. Alternatively, a material tray can be placed at the feeding position. The tray can be a movable tray; when one empty slot receives material, the tray moves a certain distance to prepare the next empty slot for receiving the next material.

[0049] like Figure 7 As shown, the extension trajectory of the guide groove 310 in the length direction has a curved segment 311, and the curved segment 311 is at least partially a right-handed helix, that is, in Figure 7 From the perspective of [the viewpoint], the curved segment 311 spirals counterclockwise from the lower part of the rotating sleeve 300 to the upper part of the rotating sleeve 300. It can be understood that the vertical distance projected onto the vertical plane by the two ends of the guide groove 310 can be greater than or equal to the maximum distance the upper template 100 moves, and the angle formed by the two ends of the curved segment 311 on the horizontal plane and the center of the rotating sleeve 300 can be set to be greater than or equal to the rotation angle between the material pick-up position and the material release position. The extension trajectory of the guide groove 310 along its length also includes a straight segment 312, which connects to the upper end of the curved segment 311 and extends vertically. By setting the straight segment 312, the oscillation process of the material feeding assembly 500 can have a buffer time. During the sliding of the guide column 410 along the straight segment 312, the material feeding assembly 500 does not rotate; therefore, the material feeding assembly 500 can utilize this buffer time to perform the material feeding action.

[0050] Reference Figures 4 to 13The embodiment of the present invention also includes a lifting drive block 600, a lifting driven block 700, and a base 800. The base 800 is disposed on the lower mounting base 210 and has a horizontally arranged sliding groove 831. The lifting drive block 600 is disposed on the base 800 and can slide along the sliding groove 831. A first return spring 620 is horizontally arranged between the lifting drive block 600 and the base 800. A first central hole 610 is formed on the lifting drive block 600, and a second central hole 710 is formed on the lifting driven block 700. A protrusion 611 is provided on the inner wall of the first central hole 610, and the protrusion 611 has a first inclined surface 612. The lifting rod 400 has a vertically arranged clearance groove 420. The end of the clearance groove 420 near the guide post 410 is provided with a second inclined surface that can cooperate with the first inclined surface 612. Surface 421, lifting rod 400 passes through the first central hole 610 and the second central hole 710 and protrusion 611 extends into the clearance groove 420. Rotating sleeve 300 is rotatably disposed in base 800 and can slide in the vertical direction. Lifting driven block 700 is disposed in base 800 and can slide in the vertical direction. Lifting drive block 600 and lifting driven block 700 are respectively provided with a third inclined surface 630 and a fourth inclined surface 720 that can cooperate with each other. Lifting drive block 600 can slide in the horizontal direction with the cooperation of the first inclined surface 612 and the second inclined surface 421. Lifting driven block 700 can slide in the vertical direction with the cooperation of the third inclined surface 630 and the fourth inclined surface 720. Lifting driven block 700 can drive rotating sleeve 300 to slide in the vertical direction. Unloading component 500 moves synchronously with rotating sleeve 300. It is understandable that by setting up the lifting drive block 600, the lifting driven block 700 and the base 800, the unloading component 500 can move downward a certain distance when it moves to the material picking position, so that the unloading component 500 will not collide with the upper template 100 or the lower template 200 when it rotates, and the unloading component 500 can descend a certain distance to pick up the material more stably.

[0051] Specifically, during the upward movement of the lifting rod 400, the position of the clearance groove 420 gradually rises. When the second inclined surface 421 at the lower end of the clearance groove 420 touches the first inclined surface 612 on the protrusion 611, the feeding assembly 500 is in the material-picking position. As the lifting rod 400 continues to rise, the cooperation between the first inclined surface 612 and the second inclined surface 421 allows the lifting drive block 600 to move a certain distance horizontally. Furthermore, during the horizontal movement of the lifting drive block 600, the cooperation between the third inclined surface 630 and the fourth inclined surface 720 allows the lifting driven block 700 to be subjected to a downward squeezing force and slide downward. The downward sliding lifting driven block 700 can drive the rotating sleeve 300 to slide downward. This causes the unloading component 500 on the rotating sleeve 300 to slide downwards and pick up the material. After the rotating sleeve 300 completes the material picking action, the lifting rod 400 slides downwards. At this time, since the first inclined surface 612 disengages from the second inclined surface 421, the lifting drive block 600 is no longer squeezed. The lifting drive block 600 can return to its original position under the drive of the first reset spring 620. Consequently, the third inclined surface 630 will not squeeze the fourth inclined surface 720, and the lifting driven block 700 can return to its original position, thereby causing the rotating sleeve 300 to return to its original position. The unloading component 500 after rising will not touch the lower template 200. At this time, the lifting rod 400 can continue to descend to drive the rotating sleeve 300 to rotate and rotate the unloading component 500 to the material feeding position.

[0052] Understandably, the lifting rod 400 is also provided with a guide post hole 430, and the guide post 410 is threadedly connected to the lifting rod 400 at the position of the guide post hole 430. In addition, the width of the protrusion 611 can be set to match the clearance groove 420, which can restrict the rotation of the protrusion 611 and thus restrict the rotation of the lifting drive block 600.

[0053] Understandably, referring to Figure 4 and Figure 5 The present invention also includes a second reset spring 840, which is disposed in the base 800 and located below the rotating sleeve 300. The second reset spring 840 can drive the rotating sleeve 300 to slide upward, so that when the lifting driven block 700 no longer presses the rotating sleeve 300 downward, the rotating sleeve 300 can return to its original position under the action of the elastic restoring force of the second reset spring 840.

[0054] like Figure 4 As shown, a first thrust bearing 330 is fitted at the bottom of the rotating sleeve 300, and the end of the second return spring 840 abuts against the first thrust bearing 330. A second thrust bearing 340 is fitted at the top of the rotating sleeve 300, and the second thrust bearing 340 is located below the lifting driven block 700. The first thrust bearing 330 and the second thrust bearing 340 can withstand vertical thrust, while ensuring that the rotating sleeve 300 can rotate more smoothly and stably.

[0055] Reference Figure 4 and Figure 11 It also includes multiple balls 650, which are located between the lifting drive block 600 and the base 800. Since the lifting drive block 600 needs to slide horizontally relative to the base 800, the balls 650 reduce the friction between the lifting drive block 600 and the base 800. The lifting drive block 600 is also provided with a ball groove 640, in which the balls 650 are housed. The ball groove 640 can be a blind groove and is formed on two opposite edges of the upper surface of the lifting drive block 600.

[0056] Reference Figure 2 , Figure 4 and Figure 8 The base 800 includes a base body 810, a limiting sleeve 820, and a limiting cover plate 830. The base body 810 is fixed on the lower mounting base 210. The limiting sleeve 820 is detachably mounted on the base body 810. The limiting cover plate 830 is fastened onto the limiting sleeve 820. A ball bearing 650 is located between the lifting drive block 600 and the limiting cover plate 830. A sliding groove 831 is located inside the limiting cover plate 830. The lifting drive block 600 is provided with a slide rail 660 that slides with the sliding groove 831. A limiting groove 821 is formed on the limiting sleeve 820. The unloading assembly 500 extends out of the limiting sleeve 820 at the limiting groove 821. The base 800 can house rotating components such as the rotating sleeve 300 inside itself, preventing too many rotating components from being exposed.

[0057] Specifically, refer to Figure 10 The base body 810 has a mounting hole 811. The base body 810 can be threadedly connected to the lower mounting seat 210 at the mounting hole 811. The limiting sleeve 820 can also be detachably connected to the base body 810 by fasteners.

[0058] It should be noted that the limiting cover plate 830 is provided with a third center hole 832. During installation, the bottom of the lifting rod 400 can pass through the third center hole 832, the first center hole 610, the second center hole 710 and the mating hole 320 in sequence.

[0059] Reference Figure 4 and Figure 14The unloading assembly 500 includes a mounting arm 510, a picking arm 520, a telescopic adjusting rod 530, and a picking head 540. The picking head 540 is mounted on the picking arm 520 and can pick up and place materials. The mounting arm 510 is fixed on the rotating sleeve 300. Specifically, the upper part of the rotating sleeve 300 can be configured as a stepped shaft, and both the mounting arm 510 and the unloading assembly 500 are mounted on this stepped shaft. In addition, the two ends of the telescopic adjusting rod 530 are respectively connected to the mounting arm 510 and the picking arm 520. The horizontal distance between the mounting arm 510 and the picking arm 520 can be adjusted along the axial direction of the telescopic adjusting rod 530. Specifically, the two ends of the telescopic adjusting rod 530 can be provided with threads of opposite directions. When the middle part of the telescopic adjusting rod 530 is rotated, the mounting arm 510 and the picking arm 520 at both ends can automatically move closer or further apart. By adjusting the distance between the mounting arm 510 and the picking arm 520, different picking and unloading positions can be adapted. It should be noted that there can be two telescopic adjustment rods 530.

[0060] In this embodiment of the invention, the picking head 540 can pick up materials by adsorption, magnetic attraction or gripping. Specifically, when the picking head 540 is a negative pressure suction head, the negative pressure suction head is connected to a negative pressure source.

[0061] Reference Figure 4 In this embodiment of the invention, the feeding assembly 500 is equipped with a sensor 550. The sensor 550 is used to detect whether the feeding assembly 500 has picked up material at the material picking position. Specifically, the sensor 550 can be located above or to the side of the picking head 540. The sensor 550 can be a distance sensor, a through-beam sensor, or other sensor that can detect whether there is material within a certain distance. Such sensors are widely used in the field, and their specific principles will not be elaborated here. When the feeding assembly 500 leaves the material picking position but has not picked up any material, the sensor 550 can send a stop signal to the stamping machine to stop the machine from continuing to operate, thereby preventing the unpicked material from damaging the upper template 100 and the lower template 200.

[0062] 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 described. 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.

[0063] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A stamping machine with automatic material feeding capability, characterized in that, include: The frame is provided with an upper template and a lower template. The upper template can reciprocate relative to the lower template in the vertical direction. The frame has a material picking position and a material feeding position. The upper mounting base and the lower mounting base are respectively installed on the upper template and the lower template; A rotating sleeve is disposed on the lower mounting base. The rotating sleeve can rotate around its own axis. A guide groove is provided on the outer surface of the rotating sleeve. A mating hole is provided in the interior of the rotating sleeve along the vertical direction. The guide groove communicates with the mating hole. At least part of the guide groove extends in a non-vertical direction. A lifting rod is provided on the upper mounting base. The lifting rod extends into the mating hole and can slide along the axial direction of the mating hole under the drive of the upper template. A guide post is horizontally provided on the lifting rod. The guide post extends into the guide groove and slides with the guide groove. A feeding assembly is installed on the rotating sleeve and can rotate synchronously with the rotating sleeve. The feeding assembly is used to pick up and put in materials. The guide groove is configured such that when the upper template moves back and forth, the unloading component can swing back and forth between the material picking position and the material releasing position.

2. The automatic feeding stamping machine according to claim 1, characterized in that, The extension trajectory of the guide groove along its length has a curved segment, and the curved segment is at least partially a right-handed helix.

3. The automatic feeding stamping machine according to claim 1, characterized in that, It also includes a lifting drive block, a lifting driven block, and a base. The base is disposed on the lower mounting base and has a horizontally oriented sliding groove. The lifting drive block is disposed on the base and can slide along the sliding groove. A first return spring is horizontally disposed between the lifting drive block and the base. The lifting drive block has a first central hole, and the lifting driven block has a second central hole. A protrusion with a first inclined surface is disposed on the inner wall of the first central hole. The lifting rod has a vertically oriented clearance groove. The end of the clearance groove near the guide post has a second inclined surface that can cooperate with the first inclined surface. The lifting rod passes through the lower mounting base. The protrusion extends into the clearance groove within the first and second central holes. The rotating sleeve is rotatably disposed within the base and can slide vertically. The lifting driven block is disposed within the base and can slide vertically. The lifting drive block and the lifting driven block are respectively provided with a third inclined surface and a fourth inclined surface that can cooperate with each other. The lifting drive block can slide horizontally with the cooperation of the first and second inclined surfaces. The lifting driven block can slide vertically with the cooperation of the third and fourth inclined surfaces. The lifting driven block can drive the rotating sleeve to slide vertically. The unloading assembly moves synchronously with the rotating sleeve.

4. A stamping press with automatic material feeding according to claim 3, characterized in that, It also includes a second return spring, which is disposed inside the base and located below the rotating sleeve. The second return spring can drive the rotating sleeve to slide upward.

5. A stamping press with automatic material feeding according to claim 4, characterized in that, The bottom of the rotating sleeve is fitted with a first thrust bearing, the end of the second return spring abuts against the first thrust bearing, and the top of the rotating sleeve is fitted with a second thrust bearing, which is located below the lifting driven block.

6. A stamping press with automatic material feeding according to claim 3, characterized in that, It also includes multiple ball bearings located between the lifting drive block and the base.

7. A stamping press with automatic material feeding according to claim 6, characterized in that, The base includes a base body, a limiting sleeve, and a limiting cover plate. The base body is fixed on the lower mounting base. The limiting sleeve is detachably mounted on the base body. The limiting cover plate is fastened to the limiting sleeve. The ball bearing is located between the lifting drive block and the limiting cover plate. The sliding groove is located inside the limiting cover plate. The lifting drive block is provided with a sliding rail that slides with the sliding groove. The unloading component extends out of the limiting sleeve.

8. A stamping press with automatic material feeding according to claim 1, characterized in that, The feeding assembly includes a mounting arm, a picking arm, a telescopic adjusting rod, and a picking head. The picking head is mounted on the picking arm and can pick up and place materials. The mounting arm is fixed on the rotating sleeve. The two ends of the telescopic adjusting rod are respectively connected to the mounting arm and the picking arm. The horizontal distance between the mounting arm and the picking arm can be adjusted along the axial direction of the telescopic adjusting rod.

9. A stamping press with automatic material feeding according to claim 8, characterized in that, The picking head is a negative pressure suction head, which is connected to a negative pressure source.

10. A stamping press with automatic feeding capability according to claim 1, characterized in that, The feeding assembly is equipped with a sensor, which is used to detect whether the feeding assembly has picked up the material at the material picking position.

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