Automatic material receiving device and method for punching machine

Abstract

The invention relates to the technical field of punching machine receiving devices, and discloses an automatic punching machine receiving device and method.The automatic punching machine receiving device comprises two sets of parallel connecting rod mechanisms, one ends of the two sets of connecting rod mechanisms are hinged to an upper die unit and a lower die unit, and a receiving plate is connected between the two sets of connecting rod mechanisms through supporting rods; the two sets of connecting rod mechanisms drive the supporting rods to reciprocate in the lifting process of the upper die unit, and then the material receiving plate is driven to reciprocate to achieve material receiving. The material receiving plate is installed between the two sets of connecting rod mechanisms, reciprocating motion of the material receiving plate is driven by the supporting rods on the two sides of the material receiving plate, the material receiving plate is stressed symmetrically and stably, and fixed operation of the double-side connecting rod structure is more stable than that of a traditional single-side connecting rod structure; in addition, the pin shaft is matched with the different through holes in the first upper connecting rod and the first lower connecting rod, so that the slide way is matched with the different through holes, the device is suitable for different die heights of workpieces of the same type, and when the die height is changed, the pin shaft is matched with the different through holes, so that the top end height of the material receiving end is adaptively adjusted.

Description

Technical Field

[0001] The present invention relates to the technical field of punch feeding devices, and in particular to an automatic punch feeding device and method. Background Art

[0002] The punch processing technology has the characteristics of saving materials and energy and high efficiency, and the stamping process has low technical requirements for operators. By applying various molds, the punch can process products that cannot be processed by other machining methods. Therefore, it has a wide range of uses. For existing punch equipment, after stamping a product, the stamping process of the punch needs to be stopped, and the product is carried out manually, resulting in low work efficiency. If the operator operates improperly and the stamping process does not stop, safety problems will occur.

[0003] The Chinese utility model patent with the publication number CN205362464U discloses a punch feeding device. When the punch works, the upper workbench of the punch moves downward. Under the action of the connecting rod force, the feeding slide plate moves left and downward along the chute, driving the feeding slide plate to move left and downward. When the feeding slide plate moves outside the die working area, the upper die and the lower die of the die are closed for work. After the work is completed, the upper workbench of the punch moves upward. Under the action of the connecting rod force, the feeding slide plate moves right and upward along the chute. When the feeding slide plate moves to the center of the die working area, the product falls from the upper die into the feeding slide plate, and under the action of inertia and gravity, the product slides downward along the inclined surface of the feeding slide plate; however, this scheme uses a single set of connecting rods on one side to drive the movement of the feeding slide plate, which has instability. The upper die and the lower die are continuously closed and separated, which easily causes the acting force of the connecting rod on the feeding slide plate to be asymmetric, resulting in the slide plate being stuck in the chute seat. Summary of the Invention

[0004] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide an automatic punch feeding device and method. The feeding plate is installed between two sets of connecting rod mechanisms, and the reciprocating movement of the feeding plate is driven by the support rods on both sides thereof, so that the feeding plate is symmetrically and stably stressed, and the fixed operation of the double-sided connecting rod structure is more stable than the traditional single-sided one.

[0005] To achieve the above object, the present invention is realized by the following technical solutions:

[0006] In a first aspect, an automatic punch feeding device includes two sets of parallel connecting rod mechanisms. One ends of the two sets of connecting rod structures are hinged to the upper die unit and the lower die unit. A feeding plate is connected between the two sets of connecting rod mechanisms through support rods. The two sets of connecting rod mechanisms drive the support rods to reciprocate during the lifting of the upper die unit, and further drive the feeding plate to reciprocate to achieve feeding.

[0007] As a further implementation manner, the upper die unit includes an upper die support base, with an upper die provided at the bottom of the upper die support base; the top of the upper die support base is connected to the stamping mechanism of the punching machine equipment to realize the lifting of the upper die.

[0008] As a further implementation manner, the lower die unit includes a lower die support base installed on the workbench, with a lower die installed on the lower die support base, and the lower die and the upper die are arranged correspondingly.

[0009] As a further implementation manner, the connecting rod mechanism includes a first upper connecting rod, a first lower connecting rod, a second upper connecting rod, and a second lower connecting rod. One end of the first upper connecting rod is hinged to the upper die support base, and the other end is hinged to the second lower connecting rod; one end of the first lower connecting rod is hinged to the lower die support base, and the other end is hinged to the second upper connecting rod. The other ends of the second upper connecting rod and the second lower connecting rod are hinged together with one end of the support rod.

[0010] As a further implementation manner, the first upper connecting rod and the first lower connecting rod are arranged in a cross shape, and a row of through holes are respectively provided in the middle of the first upper connecting rod and the first lower connecting rod. A slideway is provided on the support rod, and the end of the pin shaft passes through the through holes of the first upper connecting rod and the first lower connecting rod and extends to the slideway. The upper die and the lower die approach or separate to realize the transverse reciprocating movement of the support rod.

[0011] As a further implementation manner, a vertical rod is vertically provided at the bottom of the end of the support rod away from the workbench, and the lower end of the vertical rod is hinged to the first end of the receiving plate.

[0012] As a further implementation manner, the end of the support rod close to the workbench is hinged to the second end of the receiving plate.

[0013] As a further implementation manner, support structures are provided on the upper die support base and the lower die support base, and the connection with the connecting rod mechanism is realized through the support structures.

[0014] As a further implementation manner, weight-reducing holes are provided on each rod of the connecting rod mechanism and on the receiving plate.

[0015] In a second aspect, a method for automatic material receiving of a punching machine uses an automatic material receiving device for a punching machine as described in any one of the above, and includes the following steps:

[0016] The upper die presses down, causing the first upper connecting rod and the first lower connecting rod to respectively push the second upper connecting rod and the second lower connecting rod to move in a direction away from the workbench. Further, the second upper connecting rod and the second lower connecting rod drive the receiving plate to move in a direction away from the workbench through the support rod, so that the receiving plate moves to the outside of the upper die. After the upper die presses down the workpiece and rises, under the action of the first upper connecting rod and the first lower connecting rod, the receiving plate moves in the opposite direction to the position below the lower die. When the workpiece falls from the upper die, it directly drops onto the receiving plate, realizing automatic material receiving.

[0017] The beneficial effects of the present invention are as follows:

[0018] The receiving plate of the present invention is installed between two sets of link mechanisms. The reciprocating movement of the receiving plate is driven by the support rods on both sides thereof, so that the receiving plate is symmetrically and stably stressed. The fixed operation of the double-sided link structure is more stable than that of the traditional single side. In addition, by using the pin shaft to cooperate with different through holes on the first upper link and the first lower link, the slideway is made to cooperate with different through holes, which is applicable to different die heights of the same type of workpieces. When the die height changes, the height adaptability adjustment of the top end of the receiving end can be realized by changing the cooperation of the pin shaft with different through holes. The link mechanism is arranged on one side of the upper die and the lower die. As the upper die moves up and down, the receiving plate reciprocates to receive materials, and the power of the punching machine is utilized to realize the automatic blanking of the hub workpieces, which can save kinetic energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings forming a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0020] Figure 1 is a schematic diagram of the overall structure of the automatic material receiving device of the punching machine in the embodiment of the present invention;

[0021] Figure 2 is an axonometric view of the automatic material receiving device in the embodiment of the present invention;

[0022] Figure 3 is an axonometric view of the automatic material receiving device in the embodiment of the present invention.

[0023] In the figure: The distances or dimensions between each part are exaggerated for showing the positions of each part, and the schematic diagram is only for illustration.

[0024] Wherein: 1. punching machine equipment, 2. workbench, 3. stamping mechanism, 4. upper die unit, 5. lower die unit, 6. material receiving mechanism, 7. hub workpiece, 8. through hole, 9. pin shaft; 41. upper die support seat, 42. upper die, 43. upper support; 51. lower die support seat, 52. lower die, 53. lower support; 61. first upper link, 62. first lower link, 63. second upper link, 64. second lower link, 65. support rod, 66. vertical rod, 67. receiving plate. DETAILED DESCRIPTION OF THE INVENTION

[0025] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs.

[0026] Embodiment 1

[0027] In a typical embodiment of the present invention, reference is made to Figure 1 As shown, an automatic material receiving device for a punching machine includes two sets of link mechanisms arranged in parallel. One ends of the two link structures are hinged to the upper die unit and the lower die unit. A support rod connects a material receiving plate between the two link mechanisms. The two link mechanisms drive the support rod to reciprocate during the lifting and lowering process of the upper die unit, and then drive the material receiving plate to reciprocate to achieve material receiving.

[0028] As Figure 1 shown, the punching machine equipment 1 has a workbench 2. Above the workbench 2, there is a stamping mechanism 3. The bottom of the stamping mechanism 3 is connected to the upper die unit 4, which can drive the upper die unit 4 to lift and lower to achieve stamping of workpieces. A lower die unit 5 is provided on the workbench 2. A material receiving mechanism 6 is provided on one side of the upper die unit 4 and the lower die unit 5 for receiving a hub workpiece 7.

[0029] As Figure 2 and Figure 3 shown, the upper die unit 4 includes an upper die support seat 41, and an upper die 42 is provided at the bottom of the upper die support seat 41. The top of the upper die support seat 41 is connected to the stamping mechanism 3 of the punching machine equipment 1 to realize the lifting of the upper die. The lower die unit 5 includes a lower die support seat 51 installed on the workbench 2, and a lower die 52 is installed on the lower die support seat 51. The lower die 52 and the upper die 42 are arranged corresponding to each other.

[0030] As Figure 1 shown, a material receiving mechanism 6 is provided on the right side of the upper die unit 4 and the lower die unit 5. The material receiving mechanism 6 includes two sets of link mechanisms and a material receiving plate 67 between the two sets of link mechanisms.

[0031] As Figure 2 shown, the two sets of link mechanisms respectively include a first upper link 61, a first lower link 62, a second upper link 63, and a second lower link 64. Support structures are provided on the upper die support seat and the lower die support seat 51 to realize hinged connection with the link mechanisms. Specifically, upper supports 43 are provided at the front and rear ends of the right side surface of the upper die support seat 41, and lower supports 53 are provided at the front and rear ends of the right side surface of the lower die support seat 51. One end of the first upper link 61 is hinged through the upper support 43, and one end of the first lower link 62 is hinged through the lower support 53.

[0032] Taking one set of link mechanisms as an example, the other end of the first upper link 61 is hinged to one end of the second lower link 64; the other end of the first lower link 62 is hinged to the second upper link 63, and the other ends of the second upper link 63 and the second lower link 64 are hinged together with one end of the support rod.

[0033] Each set of first upper connecting rods 61 and first lower connecting rods 62 are cross-arranged, and a row of through holes 8 are respectively provided in the middle of the first upper connecting rods 61 and the first lower connecting rods 62, and a slideway is provided on the support rod 65 along its length direction. The through holes 8 of the first upper connecting rods and the first lower connecting rods are matched by pins 9, and the pins 9 are also inserted into the slideway of the support rods 65, so that the pins can slide on the support rods 65, and the upper mold and the lower mold can be moved closer or farther away to realize that the second upper connecting rod 63 and the second lower connecting rod 64 drive the support rod 65 to move back and forth horizontally.

[0034] like Figure 2 As shown, a vertical rod 66 is vertically provided at the bottom of one end of the support rod 65 away from the workbench 2, and the lower end of the vertical rod 66 is hinged to the first end of the receiving plate 67. Two groups of vertical rods 66 are used to limit the outer end of the receiving plate 67. The receiving plate 67 is a U-shaped plate, so that the workpiece can slide in one direction on the receiving plate 67.

[0035] One end of the support rod 65 close to the workbench is hinged to the second end of the receiving plate 67. In this embodiment, the receiving plate 67 is fixed by two groups of support rods 65 and vertical rods 66, and one end of the receiving plate 67 close to the upper mold 42 is higher than the other end, so that the workpiece falling onto the receiving plate 67 can slide along the inclined surface of the receiving plate 67.

[0036] In order to reduce the gravity of the root connection mechanism, weight-reducing holes are provided on each rod of the connecting rod mechanism and the connecting plate, which saves structural costs and ensures stable operation of the structure.

[0037] By utilizing the pin shaft to cooperate with different through holes on the first upper connecting rod 61 and the first lower connecting rod 62, the slideway can be matched with different through holes to adapt to different mold heights of the same type of workpieces. When the mold height changes, the height of the top end of the docking material end can be adaptively adjusted by changing the pin shaft 9 to cooperate with different through holes 8.

[0038] The connecting rod mechanism of this embodiment is arranged on one side of the upper die and the lower die. As the upper die rises and falls, the receiving plate reciprocates to receive the material, and the power of the punch press is used to realize automatic unloading of the hub workpiece, which can save kinetic energy.

[0039] The receiving plate of this embodiment is installed between two sets of connecting rod mechanisms. The reciprocating movement of the receiving plate is driven by the support rods on both sides of it, so that the receiving plate 67 is symmetrically and stably stressed. The fixed operation of the double-sided connecting rod structure is more stable than the traditional single-sided one.

[0040] Embodiment 2

[0041] In a typical embodiment of the present invention, reference is made to Figures 1-3 As shown, a punch press automatic material receiving method, using a punch press automatic material receiving device as described in Example 1, comprises the following steps:

[0042] After the manipulator feeds the material, the punch presses the workpiece to realize the downward pressure of the upper die, so that the first upper connecting rod 61 and the first lower connecting rod 62 respectively push the second upper connecting rod 63 and the second lower connecting rod 64 to move away from the workbench 2, thereby realizing that the second upper connecting rod 63 and the second lower connecting rod 64 drive the material receiving plate 67 to move away from the workbench through the support rod, so that the material receiving plate moves to the outside of the upper die. After the upper die presses the workpiece and rises, the upper die rises, the workpiece rises with the upper die, and the rising of the upper die drives the linkage mechanism to move. Under the action of the first upper connecting rod and the first lower connecting rod, the material receiving plate moves in the opposite direction to the position below the lower die. When the workpiece falls from the upper die, it directly falls onto the material receiving plate and enters the next process, realizing automatic material receiving. Among them, the workpiece falling from the upper die is the prior art.

[0043] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An automatic material receiving device for a punch press, characterized in that: It includes two sets of parallelly arranged connecting rod mechanisms, one end of the two sets of connecting rod structures is hinged on the upper mold unit and the lower mold unit, and the two sets of connecting rod mechanisms are connected to the receiving plate through support rods. During the lifting process of the upper mold unit, the two sets of connecting rod mechanisms drive the support rods to reciprocate, and then drive the receiving plate to reciprocate to achieve material receiving.

2. The automatic material receiving device for a punch press according to claim 1, characterized in that: The upper die unit comprises an upper die support seat, an upper die is arranged at the bottom of the upper die support seat; the top of the upper die support seat is connected to the punching mechanism of the punch press equipment to realize the lifting and lowering of the upper die.

3. The automatic material receiving device for a punch press according to claim 2, characterized in that: The lower die unit comprises a lower die support seat installed on the workbench, a lower die is installed on the lower die support seat, and the lower die and the upper die are arranged correspondingly.

4. The automatic material receiving device for a punch press according to claim 3, characterized in that: The connecting rod mechanism includes a first upper connecting rod, a first lower connecting rod, a second upper connecting rod and a second lower connecting rod, one end of the first upper connecting rod is hinged to the upper mold support seat, and the other end is hinged to the second lower connecting rod; one end of the first lower connecting rod is hinged to the lower mold support seat, and the other end is hinged to the second upper connecting rod, and the other ends of the second upper connecting rod and the second lower connecting rod are hinged together with one end of the support rod.

5. The automatic material receiving device for a punch press according to claim 4, characterized in that: The first upper connecting rod and the first lower connecting rod are cross-arranged, and a row of through holes are respectively provided in the middle of the first upper connecting rod and the first lower connecting rod. A slideway is provided on the support rod, and the end of the pin shaft passes through the through holes of the first upper connecting rod and the first lower connecting rod and extends to the slideway. The upper mold and the lower mold are approached or moved away to realize the lateral reciprocating movement of the support rod.

6. The automatic material receiving device for a punch press according to claim 5, characterized in that: A vertical rod is vertically arranged at the bottom of one end of the support rod away from the workbench, and the lower end of the vertical rod is hinged to the first end of the material receiving plate.

7. The automatic material receiving device for a punch press according to claim 6, characterized in that: The support rod is hinged to the second end of the receiving plate at one end close to the workbench.

8. The automatic material receiving device for a punch press according to claim 3, characterized in that: The upper die support seat and the lower die support seat are provided with a support structure, which is hinged with the connecting rod mechanism through the support structure.

9. The automatic material receiving device for a punch press according to claim 1, characterized in that: Each rod of the connecting rod mechanism and the material receiving plate are provided with weight-reducing holes.

10. A punch press automatic material receiving method, characterized in that: The automatic material receiving device for a punch press according to claim 7 comprises the following steps: The upper mold is pressed downward, so that the first upper connecting rod and the first lower connecting rod respectively push the second upper connecting rod and the second lower connecting rod to move in the direction away from the workbench, and then the second upper connecting rod and the second lower connecting rod drive the receiving plate to move in the direction away from the workbench through the support rod, so that the receiving plate moves to the outside of the upper mold, and the upper mold presses down the workpiece and then rises. Under the action of the first upper connecting rod and the first lower connecting rod, the receiving plate moves in the opposite direction to the position below the lower mold. When the workpiece falls from the upper mold, it falls directly onto the receiving plate, realizing automatic material receiving.

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