Blanking and forming composite device for small sheet metal parts

Abstract

The utility model discloses a small sheet metal part blanking and forming composite device which comprises an upper die and a lower die, a material pushing mechanism, a blanking mechanism, a material sheet positioning mechanism, a material sheet forming mechanism and a material taking mechanism are sequentially arranged between the upper die and the lower die, and the material pushing mechanism can push material sheets blanked by the blanking mechanism into the material sheet positioning mechanism. The material taking mechanism can move material sheets in the material sheet positioning mechanism into the material sheet forming mechanism and take out the material sheets after forming, small sheet metal parts are blanked, the forming composite device further comprises a control mechanism, and the control mechanism is in communication connection with the material pushing mechanism, the blanking mechanism, the material sheet positioning mechanism, the material sheet forming mechanism and the material taking mechanism. Therefore, two procedures of blanking and forming of sheet metal parts are achieved, blanking, positioning, forming and transferring of material sheets can be achieved in the device through the material pushing mechanism, the material sheet positioning mechanism, the material sheet forming mechanism and the material taking mechanism, the middle manual feeding and discharging link is omitted, automatic production is achieved, and production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet metal processing, in particular to a small sheet metal blanking and forming composite device. Background Art

[0002] Currently, the production and forming of small sheet metal parts is completed by manually loading and unloading materials into the corresponding molds. Part of the production process includes: incoming material is coiled, flattened by a flattening machine, and then fed into the punch press blanking die; after blanking, the blanked sheets are separated into a cassette and randomly arranged; the sheets are then manually placed into the forming mold, punched and formed, and finally manually removed. Therefore, the current production method of small sheet metal parts requires the coordinated operation of multiple people, which occupies a lot of manpower and equipment, and is time-consuming and labor-intensive. Utility Model Content

[0003] In order to solve the technical problems existing in the background technology, the utility model proposes a composite device for blanking and forming small sheet metal parts.

[0004] The utility model proposes a composite device for blanking and forming small sheet metal parts, including an upper mold and a lower mold, wherein a pushing mechanism, a blanking mechanism, a sheet positioning mechanism, a sheet forming mechanism and a picking mechanism are sequentially arranged between the upper mold and the lower mold, the pushing mechanism can push the sheet after blanking by the blanking mechanism into the sheet positioning mechanism, the picking mechanism can move the sheet in the sheet positioning mechanism into the sheet forming mechanism, and take out the sheet after forming, the composite device for blanking and forming small sheet metal parts also includes a control mechanism, and the control mechanism is communicatively connected to the pushing mechanism, the blanking mechanism, the sheet positioning mechanism, the sheet forming mechanism and the picking mechanism.

[0005] Preferably, the blanking mechanism comprises:

[0006] A plurality of support columns provided on the lower die for supporting incoming sheet metal parts;

[0007] A blanking area is provided between the plurality of support columns and on the upper end surface of the lower die, wherein the contour of the blanking area corresponds to the shape of the blank after blanking;

[0008] A blanking punch is provided on the upper die for blanking the sheet metal parts on the support column.

[0009] Preferably, the pushing mechanism includes a pushing cylinder and a pushing plate, the thickness of the pushing plate is less than the height of the support column, the free end of the push rod of the pushing mechanism is fixed to the pushing plate, and the end of the pushing plate close to the blanking area is provided with a contoured groove adapted to the shape of the sheet after blanking. The pushing cylinder is started to push the pushing plate to push the sheet located in the blanking area into the sheet positioning mechanism.

[0010] Preferably, the sheet positioning mechanism includes:

[0011] A positioning block provided on the lower die, wherein the shape of the positioning block corresponds to the blanked sheet;

[0012] A supporting block is used to support the blank after blanking, has the same shape as the blank after blanking, and has a height less than that of the positioning block, with a portion of the supporting block located inside the positioning block and the other portion located on the lower die;

[0013] The positioning cylinder is located on the side of the sheet positioning mechanism, and its output end is connected to the pushing rod located upstream of the supporting block. The pushing end of the pushing rod is provided with an inclined surface, and a floating positioning block is slidingly matched on the inclined surface. When the pushing rod is in the initial state, the floating positioning block is located at the lowest point, and its height is lower than the height of the supporting block plus the sheet; when the positioning cylinder is started, the pushing rod pushes the floating positioning block to slide upward on the inclined surface at the end of the pushing rod. At this time, the height of the floating positioning block is higher than the height of the supporting block plus the sheet, forming a limit for the sheet.

[0014] Preferably, the positioning cylinder is further provided with a detection switch capable of judging whether the positioning of the sheet is accurate.

[0015] Preferably, the tablet forming mechanism includes:

[0016] A forming cavity is provided on the lower die, and the forming cavity is adapted to the blanked sheet;

[0017] A forming convex die is provided on the upper die.

[0018] Preferably, the material taking mechanism includes:

[0019] A material-retrieving manipulator, the lower end of which is provided with a vacuum suction cup, the vacuum suction cup being capable of adsorbing the upper end of the material sheet in the forming cavity;

[0020] A material taking cylinder, the output end of which is connected to the material taking manipulator, and is used to push the material taking manipulator to move to the top of the sheet positioning mechanism to absorb and fix the sheet inside it, and then move it into the forming cavity for release;

[0021] The avoidance cylinder has an output end connected to the material-retrieving robot and is used to push the material-retrieving robot to move to the downstream of the sheet forming mechanism and avoid the sheet forming mechanism.

[0022] Preferably, the four edges of the forming cavity are provided with guide structures, and 1.5 times the material thickness is reserved in the lower part of the forming cavity.

[0023] Preferably, the guide structure includes four edges of the forming cavity having chamfers of 15-20 degrees.

[0024] Preferably, two groups of vacuum suction cups are sequentially provided at the lower end of the material-retrieving robot. When the material-retrieving robot moves, the two groups of vacuum suction cups can be located directly above the material sheet positioning mechanism and the forming cavity respectively.

[0025] To sum up, the utility model has the following beneficial effects: the small sheet metal blanking and forming composite device of this scheme realizes the two processes of sheet metal blanking and forming, and through the pushing mechanism, blanking mechanism, sheet positioning mechanism, sheet forming mechanism and material picking mechanism, the sheet blanking, positioning, forming and transferring of the sheet can be realized in this device, eliminating the intermediate manual loading and unloading links, realizing automated production and improving production efficiency.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A three-dimensional diagram of a small sheet metal blanking and forming composite device according to an embodiment of the present utility model;

[0028] Figure 2 A perspective view of the pushing mechanism on the lower die of the embodiment of the utility model in the pushing state;

[0029] Figure 3 This is a schematic diagram of the pusher mechanism on the lower die of an embodiment of the utility model;

[0030] Figure 4 This is a partial enlarged view of the pushing state of the pushing mechanism on the lower die of the embodiment of the utility model;

[0031] Figure 5 This is a partial schematic diagram of the sheet positioning mechanism of an embodiment of the utility model;

[0032] Figure 6 This is a schematic diagram of the state of the sheet positioning mechanism of the embodiment of the utility model Figure 1 ;

[0033] Figure 7 This is a schematic diagram of the state of the sheet positioning mechanism of the embodiment of the utility model Figure 2 ;

[0034] Figure 8 Schematic diagram of the material taking mechanism according to an embodiment of the present utility model.

[0035] In the picture:

[0036] 1. Upper mold;

[0037] 2. Lower mold;

[0038] 3. Pushing mechanism; 31. Pushing cylinder; 32. Pushing plate; 33. Profiling groove;

[0039] 4. Blanking mechanism; 41. Support column; 42. Blanking area;

[0040] 5. Sheet positioning mechanism; 51. Positioning block; 52. Supporting block; 53. Positioning cylinder; 54. Push rod; 55. Floating positioning block; 56. Detection switch;

[0041] 6. Sheet forming mechanism; 61. Forming cavity;

[0042] 7. Retrieving mechanism; 71. Retrieving manipulator; 72. Vacuum suction cup; 73. Retrieving cylinder; 74. Avoiding cylinder;

[0043] 8. Incoming sheet metal parts. DETAILED DESCRIPTION

[0044] The following describes in detail embodiments of the present invention. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention, and should not be construed as limiting the present invention.

[0045] like Figure 1-8 As shown, the present embodiment proposes a composite device for blanking and forming small sheet metal parts, comprising an upper die 1 and a lower die 2. A pushing mechanism 3, a blanking mechanism 4, a sheet positioning mechanism 5, a sheet forming mechanism 6, and a pick-up mechanism 7 are sequentially arranged between the upper die 1 and the lower die 2. The pushing mechanism 3 can push the sheet after being blanked by the blanking mechanism 4 into the sheet positioning mechanism 5. The pick-up mechanism 7 can move the sheet in the sheet positioning mechanism 5 into the sheet forming mechanism 6 and remove the sheet after forming. The composite device for blanking and forming small sheet metal parts also includes a control mechanism, which is communicatively connected to the pushing mechanism 3, the blanking mechanism 4, the sheet positioning mechanism 5, the sheet forming mechanism 6, and the pick-up mechanism 7. This facilitates operator control.

[0046] In this way, the punching action of the punch press realizes the two processes of blanking and forming of the sheet metal parts in one punching operation, and through the pushing mechanism 3, the blanking structure 4, the sheet positioning mechanism 5, the sheet forming mechanism 6 and the material taking mechanism 7, the blanking, positioning, forming and transferring of the sheet can be realized in the device of this embodiment, eliminating the intermediate manual loading and unloading links, realizing automated production and improving production efficiency.

[0047] Furthermore, if Figure 2 As shown, the blanking mechanism 4 includes:

[0048] A plurality of support columns 41 provided on the lower die 2 for supporting the incoming sheet metal material 8;

[0049] A blanking area 42 is provided between the plurality of support columns 41 and on the upper end surface of the lower die 2. The contour of the blanking area 42 corresponds to the shape of the blank after blanking.

[0050] The blanking punch provided on the upper die 1 is used to blank the sheet metal part 8 on the support column 41 .

[0051] The incoming material is a coil. After the flattening machine flattens the coil, it is sent to the upper end of multiple support columns 41, supported and fixed by the support columns 41, and then the blanking punch on the upper mold 1 is started to drop the material downward, and the sheet falls into the blanking area 42 below.

[0052] Furthermore, the pushing mechanism 3 includes a pushing cylinder 31 and a pushing plate 32. The thickness of the pushing plate 32 is less than the height of the support column 41 (so that the incoming material and the blanking material are respectively located on two parallel planes above and below, without affecting each other, and the working processes are independent). The free end of the push rod of the pushing mechanism 3 is fixed to the pushing plate 32. The end of the pushing plate 32 near the blanking area 42 is provided with a contoured groove 33 adapted to the shape of the material after blanking. The pushing cylinder 31 is started to push the pushing plate 32 to push the material located in the blanking area 42 into the material positioning mechanism 5.

[0053] Among them, such as Figure 5-7 As shown, the sheet positioning mechanism 5 includes:

[0054] A positioning block 51 is provided on the lower die 2, the shape of the positioning block 51 corresponding to the blanked sheet;

[0055] The support block 52 is used to support the blanked sheet. It has the same shape as the blanked sheet and is smaller in height than the positioning block 51. A portion of the support block 52 is located inside the positioning block 51, and the other portion is located on the lower die 2.

[0056] The positioning cylinder 53 is located on the side of the sheet positioning mechanism 5, and its output end is connected to the pushing rod 54 located upstream of the supporting block 52. The pushing end of the pushing rod 54 is provided with an inclined surface, and a floating positioning block 55 is slidingly matched on the inclined surface. When the pushing rod 54 is in the initial state, the floating positioning block 55 is at the lowest point, and its height is lower than the height of the sheet fed by the supporting block 52; when the positioning cylinder 53 is started, the pushing rod 54 pushes the floating positioning block 55 to slide upward on the inclined surface at the end of the pushing rod 54. At this time, the height of the floating positioning block 55 is higher than the height of the sheet fed by the supporting block 52, forming a limit for the sheet.

[0057] Preferably, a detection switch 56 is provided on the positioning cylinder 53 to determine whether the sheet is accurately positioned. Specifically, the detection switch 56 determines whether the sheet is accurately positioned by the extension length of the positioning cylinder 53. It can also determine whether thin and small sheets have been positioned and output a judgment signal point.

[0058] At the same time, the floating positioning block 55 is provided with a vertical protrusion on the side close to the supporting block 52, and a vertical groove is provided on the corresponding side of the supporting block. When limiting, the vertical protrusion extends into the vertical groove, and the limiting is more stable and accurate, which limits the lateral freedom of the material sheet and will not affect the material picking mechanism to absorb the material sheet upward.

[0059] In this embodiment, the sheet forming mechanism 6 includes:

[0060] A forming cavity 61 is provided on the lower die 2, and the forming cavity 61 is adapted to the blanked sheet;

[0061] A forming punch is provided on the upper die 1.

[0062] The four edges of the forming cavity 61 are equipped with guide structures, and the lower portion of the forming cavity 61 is reserved for 1.5 times the thickness of the material. Specifically, the guide structures include 15-20 degree chamfers on the four edges of the forming cavity 61. This not only ensures that the sheet picked up by the material removal mechanism 7 is smoothly placed into the forming cavity 61, but also prevents burrs from small amounts of punched sheet material from affecting positioning accuracy.

[0063] Further, if Figure 8 As shown, the material taking mechanism 7 includes:

[0064] The material-retrieving robot 71 is provided with a vacuum suction cup 72 at the lower end, and the vacuum suction cup 72 can be adsorbed on the upper end of the material sheet in the molding cavity 61; it should be noted that a spring is also provided between the vacuum suction cup 72 and the lower end of the material-retrieving robot 71, which can adapt to various thicknesses of the material sheet and has a wide range of adaptability, and the material of the vacuum suction cup 72 can be set to rubber to avoid scratching the material sheet and play a buffering role.

[0065] The material taking cylinder 73, whose output end is connected to the material taking manipulator 71, is used to push the material taking manipulator 71 to move to the top of the sheet positioning mechanism 5 to absorb and fix the sheet inside it, and then move it to the forming cavity 61 for release;

[0066] The avoidance cylinder 74 has an output end connected to the material-taking robot 71 and is used to push the material-taking robot 71 to move to the downstream of the sheet forming mechanism 6 and avoid the sheet forming mechanism 6.

[0067] When in use, the incoming material is a coil, which is flattened by a flattening machine and then fed into the support column 41 of the lower die 2 in this embodiment. After blanking, the pushing cylinder 31 pushes the pushing plate 32 to push the sheet in the blanking area 42 into the sheet positioning mechanism 5. The sheet is guided to the corresponding position by the outer shape of the positioning block 51 and the supporting block 52 and is located above the supporting block 52. At this time, the upper surface of the total height of the supporting block 52 and the upper surface of the positioning block 51 are in the same plane. Then, by starting the positioning cylinder 53, the pushing rod 54 pushes out the floating positioning block 55 to push out and limit the sheet. At the same time, the detection switch 56 that determines the position of the sheet by the extended length of the cylinder is used to determine whether the sheet is accurately positioned. The picking cylinder 73 drives the picking manipulator 71 to move to the top of the sheet positioning mechanism 5. The picking manipulator 71 picks up the sheet through the negative pressure three-point positioning of the vacuum suction cup 72 at the lower end, and then moves to the top of the forming cavity 61 and places the sheet into the forming cavity 61. The forming cavity 61 is designed with a four-sided guide structure (chamfer 15-20 degrees, 1.5 times the material thickness reserved at the bottom), which not only allows the sucked sheet to be placed smoothly into the forming cavity 61, but also avoids the burrs of a small amount of punched and blanked sheets affecting the positioning accuracy; after completion, the avoidance cylinder 74 starts to drive the picking manipulator 71 to move backward, and moves the entire set of picking manipulators 71 out of the range of the forming cavity 61. In this way, the punch press punches once, completing the two processes of blanking and forming. The picking cylinder and the avoidance cylinder transfer at the same time, repeating 2-5 actions to realize the cycle and work automatically.

[0068] Furthermore, to improve work efficiency, two sets of vacuum suction cups 72 are sequentially provided at the lower end of the retrieving manipulator 71. When the retrieving manipulator 71 moves, the two sets of vacuum suction cups 72 can be respectively positioned directly above the sheet positioning mechanism 5 and the forming cavity 61. In this way, a single movement of the retrieving cylinder can simultaneously complete the retrieving of the sheet from the sheet positioning mechanism 5 and the retrieving of the sheet after forming in the forming cavity 61, thereby improving the forming efficiency.

[0069] In summary, manual operation is saved, and automatic production with few people or one person operating multiple machines can be realized.

[0070] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0071] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0072] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0073] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0074] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A composite device for blanking and forming small sheet metal parts, comprising an upper die and a lower die, characterized in that: A pushing mechanism, a blanking mechanism, a sheet positioning mechanism, a sheet forming mechanism and a picking mechanism are sequentially arranged between the upper mold and the lower mold. The pushing mechanism can push the sheet after being blanked by the blanking mechanism into the sheet positioning mechanism. The picking mechanism can move the sheet in the sheet positioning mechanism into the sheet forming mechanism and take out the sheet after forming. The small sheet metal blanking and forming composite device also includes a control mechanism, which is communicatively connected to the pushing mechanism, the blanking mechanism, the sheet positioning mechanism, the sheet forming mechanism and the picking mechanism.

2. The small sheet metal blanking and forming composite device according to claim 1, characterized in that: The blanking mechanism comprises: A plurality of support columns provided on the lower die for supporting incoming sheet metal parts; A blanking area is provided between the plurality of support columns and on the upper end surface of the lower die, wherein the contour of the blanking area corresponds to the shape of the blank after blanking; A blanking punch is provided on the upper die for blanking the sheet metal parts on the support column.

3. The small sheet metal blanking and forming composite device according to claim 2, characterized in that: The pushing mechanism includes a pushing cylinder and a pushing plate. The thickness of the pushing plate is less than the height of the support column. The free end of the push rod of the pushing mechanism is fixed to the pushing plate. The end of the pushing plate close to the blanking area is provided with a contoured groove adapted to the shape of the sheet after blanking. The pushing cylinder is started to push the pushing plate to push the sheet located in the blanking area into the sheet positioning mechanism.

4. The small sheet metal blanking and forming composite device according to claim 3, characterized in that: The sheet positioning mechanism includes: A positioning block provided on the lower die, wherein the shape of the positioning block corresponds to the blanked sheet; A supporting block is used to support the blank after blanking, has the same shape as the blank after blanking, and has a height less than that of the positioning block, with a portion of the supporting block located inside the positioning block and the other portion located on the lower die; The positioning cylinder is located on the side of the sheet positioning mechanism, and its output end is connected to the pushing rod located upstream of the supporting block. The pushing end of the pushing rod is provided with an inclined surface, and a floating positioning block is slidingly matched on the inclined surface. When the pushing rod is in the initial state, the floating positioning block is located at the lowest point, and its height is lower than the height of the supporting block plus the sheet; when the positioning cylinder is started, the pushing rod pushes the floating positioning block to slide upward on the inclined surface at the end of the pushing rod. At this time, the height of the floating positioning block is higher than the height of the supporting block plus the sheet, forming a limit for the sheet.

5. The small sheet metal blanking and forming composite device according to claim 4, characterized in that: The positioning cylinder is also provided with a detection switch capable of judging whether the positioning of the sheet is accurate.

6. The small sheet metal blanking and forming composite device according to claim 1, characterized in that: The sheet forming mechanism comprises: A forming cavity is provided on the lower die, and the forming cavity is adapted to the blanked sheet; A forming convex die is provided on the upper die.

7. The small sheet metal blanking and forming composite device according to claim 6, characterized in that: The material taking mechanism comprises: A material-retrieving manipulator, the lower end of which is provided with a vacuum suction cup, the vacuum suction cup being capable of adsorbing the upper end of the material sheet in the forming cavity; A material taking cylinder, the output end of which is connected to the material taking manipulator, and is used to push the material taking manipulator to move to the top of the sheet positioning mechanism to absorb and fix the sheet inside it, and then move it into the forming cavity for release; The avoidance cylinder has an output end connected to the material-retrieving robot and is used to push the material-retrieving robot to move to the downstream of the sheet forming mechanism and avoid the sheet forming mechanism.

8. The small sheet metal blanking and forming composite device according to claim 6, characterized in that: The four edges of the forming cavity are provided with guide structures, and 1.5 times the material thickness is reserved in the lower part of the forming cavity.

9. The small sheet metal blanking and forming composite device according to claim 8, characterized in that: The guide structure includes four edges of the forming cavity with chamfers of 15-20 degrees.

10. The small sheet metal blanking and forming composite device according to claim 7, characterized in that: Two groups of vacuum suction cups are sequentially arranged at the lower end of the material-retrieving robot. When the material-retrieving robot moves, the two groups of vacuum suction cups can be located directly above the material sheet positioning mechanism and the forming cavity respectively.

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