Non-standard aluminum profile trepanning device

Abstract

The utility model provides a non-standard aluminum profile punching device, and belongs to the technical field of equipment for machining automobile parts. Comprising a working table, a clamp, a core, a punching mechanism and an ejection mechanism, the core comprises a punching layer and a supporting layer, the punching layer is arranged in front of the supporting layer, the punching mechanism is arranged on the working table, a machining station is arranged on the working table, the clamp is arranged beside the machining station of the working table, and the ejection mechanism is arranged on the supporting layer. And the ejecting mechanisms are arranged on the two sides of the machining station and drive the punching layer and the supporting layer to move left and right in an inserting mode. The core is arranged in a layered mode, after the supporting layer is inserted into the rear portion of the punching layer, the whole workpiece cavity of workpieces of different sizes within the tolerance range can be filled, gaps between the core and the workpiece cavity caused by tolerance are avoided, and collapse and burrs caused by the tolerance in the punching process are prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of equipment for processing automobile parts, in particular to a non-standard aluminum profile hole opening device. Background Art

[0002] With the development of lightweight automobiles, aluminum alloy materials are increasingly used in vehicle design, especially aluminum profiles, which are characterized by light weight and good rigidity. There are two common hole-opening processes on aluminum profiles: die punching and laser cutting. The die punching equipment has low cost and high work efficiency. However, a core must be used to assist in supporting the inner cavity of the profile to avoid deformation during stamping. At the same time, since the production of profiles is based on tolerances, the use of a uniform core often forms burrs on the edge of the punching hole, or jams during the core removal process, affecting the operation. There are some non-standard or special-shaped parts, such as press-formed longitudinal beams, which have many grooves or reinforcing ribs around the longitudinal beams, which cannot be directly passed into the core; at the same time, there are many holes, especially square holes and hexagonal holes. Since the core cannot be passed through and there is no core support, the punching process cannot be used to open the hole, so laser cutting can only be used to open the hole. The equipment cost of laser cutting is high and the operation is slow. In addition, assembly line operations require multiple devices to operate simultaneously, which further increases the processing cost and affects the processing speed. Utility Model Content

[0003] The utility model provides a non-standard aluminum profile hole opening device, which can effectively realize the machining, stamping and hole opening operations of special-shaped profiles, greatly saves processing costs, and improves work efficiency and product quality.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] A non-standard aluminum profile hole opening device comprises a workbench, a fixture, a core, a punching mechanism and a top piece mechanism, wherein the core comprises a punching layer and a supporting layer, the punching layer is arranged in front of the supporting layer, the punching mechanism is arranged on the workbench, a processing position is arranged on the workbench, the fixture is arranged beside the processing position of the workbench, the top piece mechanism is arranged on both sides of the processing position, and the top piece mechanism is inserted and moved left and right with the punching layer and the supporting layer.

[0006] In the above-mentioned non-standard aluminum profile hole opening device, two slopes are provided on both sides of the rear side surface of the punching layer, the rear side of the punching layer is in an inverted trapezoidal shape, and the supporting layer includes two left-right symmetrical wedge blocks, and the inclined surfaces of the wedge blocks match the slopes.

[0007] The above-mentioned non-standard aluminum profile hole opening device, the pushing mechanism includes a front pushing cylinder, a lifting cylinder and two rear pushing cylinders, the lifting cylinder is fixed on the workbench, the side surface of the cylinder barrel of the front pushing cylinder is fixedly connected to the cylinder rod of the lifting cylinder, and the cylinder rod of the front pushing cylinder is fixedly connected to one end of the punching layer; the rear pushing cylinder is fixed on the workbench, and the two rear pushing cylinders are symmetrically installed on the left and right sides of the processing position, and two wedge blocks are respectively connected to the cylinder rods of the two rear pushing cylinders.

[0008] The above-mentioned non-standard aluminum profile hole-punching device is also provided with a guiding mechanism, which is arranged on the left and right sides of the processing position. The guiding mechanism includes a rectangular frame, which is coaxial with the workpiece, and the width of the rectangular frame matches the width of the core.

[0009] The above-mentioned non-standard aluminum profile hole-punching device is also provided with a waste material removing mechanism, and the waste material removing mechanism is arranged beside the above-mentioned processing position.

[0010] Compared with the prior art, the utility model can insert the support layer into the workpiece cavity after the punching layer is inserted into the workpiece cavity. The support layer plays the role of a pad support for the punching layer, that is, the core of the conventional punching is designed in layers, which is convenient for punching holes in workpieces with concave and convex surfaces, saving processing costs. The punching mechanism punches out the product characteristic holes under the drive of the oil cylinder, realizes the surface punching of long aluminum profiles, and improves work efficiency. At the same time, the stamping layer and the support layer can slide, which can flexibly cope with the dimensional tolerance of the aluminum profile workpiece cavity.

[0011] The core is arranged in layers, and after the support layer is inserted behind the punching layer, the entire workpiece cavity of workpieces of different sizes within the tolerance range can be filled, avoiding the gap between the core and the workpiece cavity caused by the tolerance, and preventing collapse and burrs caused by the tolerance of the stamping process.

[0012] The utility model has short production time and low production cost, thus improving production efficiency and reducing investment cost; and can also improve product quality and mold life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the core of the utility model;

[0016] Figure 4 This is a schematic diagram of the core decomposition structure of the utility model;

[0017] The symbols in the attached drawings indicate: 1. workbench, 2. fixture, 3. core, 4. punching mechanism, 5. inclined plane, 6. punching layer, 7. supporting layer, 8. processing position, 9. slope, 10. wedge, 11. front push cylinder, 12. lifting cylinder, 13. rear push cylinder, 14. rectangular frame, 15. waste removal mechanism. DETAILED DESCRIPTION

[0018] The following is a further detailed description of the specific implementation of the utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the utility model.

[0019] like Figures 1 to 4 The utility model includes a workbench 1, a fixture 2, a core 3, a punching mechanism 4 and a top piece mechanism. The core 3 includes a punching layer 6 and a supporting layer 7. The punching layer 6 is arranged in front of the supporting layer 7. The punching mechanism 4 is arranged on the workbench 1. A processing position 8 is arranged on the workbench 1. The fixture 2 is arranged beside the processing position. The top piece mechanism is arranged on both sides of the processing position 8. The top piece mechanism carries the punching layer 6 and the supporting layer 7 into the workpiece cavity and moves left and right. The fixture 2 can fix the workpiece at the processing position 8 of the workbench 1, and then drive the punching layer 6 and the supporting layer 7 to be inserted into the workpiece cavity in turn through the top piece mechanism, so as to achieve the purpose of tightening the workpiece cavity. Then the punching mechanism 4 can punch the aluminum material after it is in place.

[0020] Furthermore, in order to facilitate the insertion of the support layer 7 between the punching layer 6 and the profile, two slopes 9 are provided on both sides of the rear side of the punching layer 6, and the rear side of the punching layer 6 is in an inverted trapezoidal shape. The support layer 7 includes two left-right symmetrical wedges 10, and the slopes 5 of the wedges 10 match the slopes 9. At the same time, the slopes 5 of the wedges 10 match the slopes 9, and the width of the punching layer can be controlled by controlling the length of the workpiece cavity into which the wedges 10 are inserted, thereby achieving the purpose of tightening the workpiece cavity, and at the same time, it can be applied to workpiece cavities of different sizes within the tolerance. Burrs and deformation during the punching process are greatly avoided.

[0021] In order to realize the insertion and extraction of the core 3 and facilitate the operation, when the workpiece is fixed on the processing position 8, the surface of the aluminum profile to be punched faces the front side, and the ejector mechanism includes a front push cylinder 11, a lifting cylinder 12 and two rear push cylinders 13. The lifting cylinder 12 is fixed on the workbench 1. The side of the cylinder barrel of the front push cylinder 11 is fixedly connected to the cylinder rod of the lifting cylinder 12. The cylinder rod of the front push cylinder 11 is fixedly connected to one end of the punching layer 6. The lifting cylinder 12 can drive the front push cylinder 11 and the punching layer to move forward and backward. The rear push cylinder 13 is fixed on the workbench 1, and the two rear push cylinders 13 are symmetrically installed on the left and right sides of the processing position 8. The two wedges 10 are respectively connected to the cylinder rods of the two rear push cylinders 13. The rear push cylinders 13 drive the wedges 10 on both sides to be inserted or pulled out from the two sides of the workpiece cavity.

[0022] During processing, the lifting cylinder 12 pushes the front pushing cylinder 11 and the stamping layer of the core 3 backward. After the stamping layer extends into the workpiece cavity from one side, the lifting cylinder 12 can drive the front pushing cylinder 11 and the stamping layer to be pulled forward together, and finally the stamping layer is close to the workpiece cavity; then the rear pushing cylinder 13 drives the wedges 10 on both sides to insert the stamping layer from both sides of the workpiece cavity, so that the stamping layer presses the workpiece cavity. When the punching mechanism 4 is retracted, the stamping layer and the supporting layer 7 exit the workpiece in turn according to the last-in-first-out principle, thus completing a working cycle.

[0023] A guide mechanism is also provided, which is arranged on the left and right sides of the processing position 8, and the guide mechanism includes a rectangular frame 14, which is coaxial with the workpiece, and the width of the rectangular frame 14 matches the width of the core 3. In this way, the longitudinal limitation of the stamping layer and the supporting layer 7 can be ensured, and the deviation can be reduced.

[0024] The fixture 2 clamps both ends of the workpiece and fixes the workpiece to the processing position 8, and the side of the workpiece to be punched faces the punching mechanism 4, and after the punching is completed, the workpiece is removed. A waste material removal mechanism 15 is also provided, which is arranged beside the processing position 8 to clean up the waste material from the punching.

[0025] The working process is as follows: the robot arm holds both ends of the workpiece and then places it in the processing position, and then presses the workpiece on the processing position 8. The lifting cylinder 12 pushes the front pushing cylinder 11 and the stamping layer of the core 3 backward. After the stamping layer extends into the workpiece cavity from one side, the lifting cylinder 12 can drive the front pushing cylinder 11 and the stamping layer to be pulled forward together, and finally the stamping layer is close to the workpiece cavity; then the rear pushing cylinder 13 drives the wedges 10 on both sides to insert the stamping layer from both sides of the workpiece cavity, and then expand the workpiece cavity, and then the punching mechanism 4 can punch the aluminum material in place. After the support layer 7 and the stamping layer fully expand the workpiece cavity, the gap in the workpiece cavity during traditional punching is avoided, and the stamping burrs and deformation are greatly avoided.

[0026] When the punching is completed and the punching mechanism 4 is withdrawn, the punching layer and the supporting layer 7 are sequentially withdrawn from the workpiece according to the last-in-first-out principle, and the waste cleaning operation after the waste mechanism punches is completed. This completes one work and continues the cycle.

[0027] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A non-standard aluminum profile opening device, characterized in that: The invention comprises a workbench (1), a fixture (2), a core (3), a punching mechanism (4) and a top member mechanism, wherein the core (3) comprises a punching layer (6) and a supporting layer (7), the punching layer (6) is arranged in front of the supporting layer (7), the punching mechanism (4) is arranged on the workbench (1), a processing position (8) is arranged on the workbench (1), the fixture (2) is arranged beside the workbench (1), the top member mechanism is arranged on both sides of the processing position (8), and the top member mechanism is inserted and moved left and right with the punching layer (6) and the supporting layer (7).

2. The non-standard aluminum profile opening device according to claim 1, characterized in that: Two slopes (9) are provided at both ends of the rear side surface of the punching layer (6); the rear side of the punching layer (6) is in an inverted trapezoidal shape; the support layer (7) comprises two left-right symmetrical wedge blocks (10); the inclined surfaces (5) of the wedge blocks (10) match the slopes (9).

3. The non-standard aluminum profile opening device according to claim 2, characterized in that: The pushing mechanism comprises a front pushing cylinder (11), a pulling cylinder (12) and two rear pushing cylinders (13); the pulling cylinder (12) is fixed on the workbench (1); the side of the cylinder barrel of the front pushing cylinder (11) is fixedly connected to the cylinder rod of the pulling cylinder (12); the cylinder rod of the front pushing cylinder (11) is fixedly connected to one end of the punching layer (6); the rear pushing cylinder (13) is fixed on the workbench (1), and the two rear pushing cylinders (13) are symmetrically installed on the left and right sides of the processing position (8); the two wedge blocks (10) are respectively connected to the cylinder rods of the two rear pushing cylinders (13).

4. The non-standard aluminum profile opening device according to claim 3, characterized in that: A guide mechanism is also provided, the guide mechanism being arranged on the left and right sides of the processing position (8), the guide mechanism comprising a rectangular frame (14), the rectangular frame (14) being coaxial with the profile to be processed, and the width of the rectangular frame (14) being consistent with the width of the core (3).

5. The non-standard aluminum profile hole opening device according to claim 4, characterized in that: A waste material beating mechanism (15) is also provided, and the waste material beating mechanism (15) is arranged beside the processing position (8).

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