Automobile metal plate punching device

Abstract

The utility model relates to the technical field of automobile sheet metal part processing, in particular to an automobile sheet metal punching device which is characterized in that guide rods are fixed on two sides of the top of a base, the guide rods are connected with a workbench in a sliding mode, a top plate is fixed on the tops of the guide rods, a first driving piece is arranged on the top plate, and a second driving piece is arranged on the top plate. The first driving piece is connected with a punching cutter so as to drive the punching cutter to move in the direction close to or away from the workbench. The workbench is movably connected with two positioning clamping plates which are oppositely arranged, the base is provided with a lifting mechanism, the top of the lifting mechanism is provided with a second driving part, and the second driving part is connected with the two positioning clamping plates so as to drive the two positioning clamping plates to move close to or away from each other. Due to the fact that the automobile sheet metal part is fixed by the two positioning clamping plates, it is guaranteed that the position of the automobile sheet metal part cannot be changed during punching operation, and then the punching precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile sheet metal processing, and more specifically, to an automobile sheet metal punching device. Background Art

[0002] Automotive sheet metal repair is a technical means of automobile repair, which refers to the repair of the car body after a collision, including analysis of automobile body damage, measurement of automobile body, shaping and stretching of automobile body sheet metal, assembly and adjustment of automobile body accessories, adjustment of routine wear and deformation, and welding repair of rusted sheet metal parts.

[0003] Sheet metal processing is a comprehensive cold working process for thin metal sheets, including shearing, punching, bending, welding, riveting, die forming, and surface treatment. In automotive sheet metal punching, a single cylinder typically drives a piston with a punch blade. However, due to the limited positioning of sheet metal parts, punching accuracy is often limited. Utility Model Content

[0004] The purpose of the utility model is to overcome the problem of low punching accuracy of sheet metal parts in the prior art when punching sheet metal parts, and to provide an automobile sheet metal punching device, thereby improving the punching accuracy of sheet metal parts.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a car sheet metal punching device, including a base, guide rods are fixed on both sides of the top of the base, the guide rods are slidably connected to the workbench, the top of the guide rods is fixed with a top plate, a first driving member is provided on the top plate, the first driving member is connected to the punching knife to drive the punching knife to move toward or away from the workbench; two relatively arranged positioning clamps are movably connected on the workbench, a lifting mechanism is provided on the base, and a second driving member is installed on the top of the lifting mechanism, and the second driving member is respectively connected to the two positioning clamps to drive the two positioning clamps to move closer or away.

[0006] In this technical solution, during use, an automotive sheet metal part is placed between two positioning clamps. A second drive member drives the two positioning clamps toward each other, securing the position of the automotive sheet metal part. When the lifting mechanism drives the workbench upward along the guide rods to a height suitable for punching, the first drive member drives the punching blade toward the workbench to punch the automotive sheet metal part held between the two positioning clamps. Because the automotive sheet metal part is secured by the two positioning clamps, its position is maintained during punching, thereby improving punching accuracy.

[0007] Furthermore, the second driving member includes a driving motor, a connecting plate and a connecting plate, the output shaft of the driving motor is connected to the connecting plate, the two ends of the connecting plate are respectively connected to a driving rod with one end hinged thereto, the other end of the driving rod is connected to a connecting column with one end connected thereto, a guide groove is provided on the workbench along the movement direction of the positioning clamp, the connecting column is located in the guide groove and the other end of the connecting column extends out of the top of the workbench, one end of the connecting column extending out of the workbench is connected to the connecting plate, a slider slidably connected to the workbench is fixed to the bottom of the connecting plate, and the two positioning clamps are respectively arranged on the opposite sides of the two connecting plates.

[0008] Furthermore, a slide is provided on the workbench, the slide is located on both sides of the guide groove, and the slider is slidably connected to the slide.

[0009] Furthermore, an elastic member having one end connected thereto is connected to one opposite side of the two connecting plates, and the other end of the elastic member is connected to the positioning clamping plate; a sliding rod is slidably connected to the connecting plate, and the sliding rod is connected to the side of the positioning clamping plate close to the connecting plate.

[0010] Furthermore, connecting columns are provided at opposite ends of the connecting plate, and each connecting column is hinged to one end of the driving rod.

[0011] Furthermore, a movable plate is slidably connected to the guide rod, and the movable plate is located above the workbench and below the first driving member. The upper surface of the movable plate is connected to the first driving member, and the punching knife is installed on the lower surface of the movable plate.

[0012] Furthermore, the lifting mechanism includes a fixed rod and a telescopic push rod fixed on the base, and at least two fixed rods are provided. The two fixed rods are movably connected to a lifting plate, the bottom of the lifting plate is connected to the telescopic end of the telescopic push rod, and the second driving member is installed on the upper surface of the lifting plate.

[0013] Furthermore, the interior of the base is a hollow structure, the lifting mechanism is accommodated in the hollow structure, and the bottom ends of the fixing rod and the telescopic push rod are respectively connected to the inner bottom wall of the base.

[0014] Furthermore, the fixing rod extends to the outside of the base, and a limiting plate is fixed on the top of the fixing rod.

[0015] Furthermore, an extrusion layer is fixed on opposite sides of the two positioning clamps, and the extrusion layer is a rubber pad.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The automobile sheet metal punching device of the present invention fixes the automobile sheet metal parts by two positioning clamps during the punching process, thereby ensuring that the position of the automobile sheet metal parts will not change during the punching operation, thereby improving the punching accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of the automobile sheet metal punching device of the utility model;

[0019] Figure 2 This is a three-dimensional diagram of the automobile sheet metal punching device of the utility model;

[0020] Figure 3 This is a structural schematic diagram of the second driving member in one of the moving states of the automobile sheet metal punching device of the present invention;

[0021] Figure 4 This is a structural schematic diagram of the second driving member in another motion state in the automobile sheet metal punching device of the present invention.

[0022] In the accompanying drawings: 1. Base; 2. Guide rod; 3. Workbench; 4. Top plate; 5. First driving member; 6. Punching knife; 7. Positioning splint; 8. Lifting mechanism; 9. Second driving member; 91. Driving motor; 92. Connecting plate; 93. Connecting plate; 94. Driving rod; 95. Connecting column; 97. Slider; 10. Sliding seat; 11. Elastic member; 98. Connecting column; 12. Movable plate; 81. Fixed rod; 82. Telescopic push rod; 83. Lifting plate; 13. Hollow structure; 84. Limiting plate; 14. Extrusion layer; 99. Sliding rod. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic, not actual, representations. They should not be construed as limiting this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted from the drawings.

[0024] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and so on indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0025] Example 1

[0026] like Figures 1 to 2 As shown, a sheet metal punching device for automobiles includes a base 1, guide rods 2 are fixed on both sides of the top of the base 1, the guide rods 2 are slidably connected to a workbench 3, a top plate 4 is fixed on the top of the guide rods 2, a first driving member 5 is provided on the top plate 4, the first driving member 5 is connected to a punching knife 6 to drive the punching knife 6 to move toward or away from the workbench 3; two positioning splints 7 arranged opposite to each other are movably connected on the workbench 3, a lifting mechanism 8 is provided on the base 1, a second driving member 9 is installed on the top of the lifting mechanism 8, and the second driving member 9 is respectively connected to the two positioning splints 7 to drive the two positioning splints 7 to move closer to or away from each other.

[0027] In this embodiment, during use, an automobile sheet metal part is placed between two positioning clamps 7. The second drive member 9 drives the two positioning clamps 7 toward each other, securing the position of the automobile sheet metal part. When the lifting mechanism 8 drives the workbench 3 upward along the guide rods 2 to a height suitable for punching, the first drive member 5 drives the punching blade 6 toward the workbench 3 to punch the automobile sheet metal part held between the two positioning clamps 7. Because the automobile sheet metal part is secured by the two positioning clamps 7, the position of the automobile sheet metal part remains unchanged during the punching operation, thereby improving punching accuracy. It should be noted that the first drive member 5 can drive the punching blade 6 toward or away from the workbench 3. The first drive member 5 can be a telescopic cylinder, a telescopic hydraulic cylinder, or an electric telescopic rod. Other structures capable of moving the punching blade 6 toward or away from the workbench 3 are also within the scope of this invention. During punching of the automobile sheet metal part, the automobile sheet metal part is positioned below the punching blade 6.

[0028] like Figure 3 、 Figure 4As shown, the second driving member 9 includes a driving motor 91, a connecting plate 92 and a connecting plate 93. The output shaft of the driving motor 91 is connected to the connecting plate 92. The two ends of the connecting plate 92 are respectively connected to a driving rod 94 with one end hinged thereto. The other end of the driving rod 94 is connected to a connecting column 95 with one end connected thereto. A guide groove is provided on the workbench 3 along the movement direction of the positioning splint 7. The connecting column 95 is located in the guide groove and the other end of the connecting column 95 extends out of the top of the workbench 3. One end of the connecting column 95 extends out of the workbench 3 and is fixedly connected to the connecting plate 93. A slider 97 slidingly connected to the workbench 3 is fixed at the bottom of the connecting plate 93. The two positioning splints 7 are respectively arranged on the opposite sides of the two connecting plates 93.

[0029] In this embodiment, the driving motor 91 is installed on the lifting mechanism 8. When the distance between the two positioning splints 7 is the largest, the driving motor 91 rotates, and the output shaft of the driving motor 91 drives the connecting plate 92 to rotate. During the rotation, the connecting plate 92 drives the driving rod 94 hinged to it to move, and the driving rod 94 drives the hinged column to move during the movement. Since the connecting column 95 is located in the guide groove and one end of the connecting column 95 extends out of the top of the workbench 3, the connecting column 95 can move along the guide groove. During the movement, the connecting column 95 drives the connecting plate 93 and the positioning splint 7 to move toward the other connecting plate 93, thereby reducing the distance between the two positioning splints 7. When the two positioning splints 7 are respectively located on both sides of the automobile sheet metal, the driving motor 91 further rotates, and the distance between the two positioning splints 7 is further reduced. The two positioning splints 7 can be used to clamp the automobile sheet metal, thereby ensuring that the position of the automobile sheet metal will not change during the punching process.

[0030] like Figure 1 、 Figure 3 、 Figure 4 As shown, the workbench 3 is provided with a slide 10, which is located on either side of the guide groove, and a slider 97 is slidably connected to the slide 10. In this embodiment, since the slides 10 are located on either side of the guide groove and are arranged along the direction of the guide groove, the slider 97 can slide relative to the slide 10 while simultaneously allowing the coupling rod to move within the guide groove. Furthermore, since the slider 97 is connected to the coupling plate 93, and the coupling plate 93 is connected to the coupling post 95, the coupling post 95 can be ensured to move along the predetermined trajectory of the guide groove, thereby ensuring the stability of the movement of the positioning clamp 7.

[0031] The two connecting plates 93 have an elastic member 11 connected to one end on opposite sides thereof, and the other end of the elastic member 11 is connected to the positioning clamp 7. A sliding rod 99 is slidably connected to the connecting plates 93, and the sliding rod 99 is connected to the side of the positioning clamp 7 near the connecting plates 93. In this embodiment, the elastic member 11 acts as a buffer during the movement of the two positioning clamps 7. It should be noted that the elastic member 11 can be a spring with a high elastic coefficient to prevent excessive spring deformation from affecting the positioning accuracy of the automobile sheet metal. Specifically, the connecting plates 93 have a roughly L-shaped structure and include an upper side plate and a lower base plate. The lower base plate of the connecting plate 93 is connected to the connecting column 95, and the lower base plate is also connected to the slider 97. The upper side plate of the connecting plate 93 has a mounting hole, and the sliding rod 99 is installed in the mounting hole and slidably connected thereto. The other end of the sliding rod 99 is connected to the positioning clamp 7, thereby stabilizing the deformation of the elastic member 11. It should be noted that two sliding rods 99 can be provided, and the two sliding rods 99 are located at the same height.

[0032] like Figure 3 、 Figure 4 As shown, connecting posts 98 are provided at opposite ends of the connecting plate 92, and each connecting post 98 is hinged to one end of the driving rod 94. In this embodiment, the rotational motion of the connecting plate 92 is transmitted to the motion of the driving rod 94 through the connecting posts 98.

[0033] like Figure 1 、 Figure 2 As shown, a movable plate 12 is slidably connected to the guide rod 2. The movable plate 12 is located above the workbench 3 and below the first drive member 5. The upper surface of the movable plate 12 is connected to the first drive member 5, and the punching blade 6 is mounted on the lower surface of the movable plate 12. In this embodiment, the first drive member 5 is connected to the punching blade 6 via the movable plate 12, and the movable plate 12 is slidably connected to the guide rod 2. The first drive member 5 can drive the movable plate 12 to move along the direction of the guide rod 2, thereby driving the punching blade 6 connected to the guide plate to move toward the workbench 3. This ensures the stability of the punching blade 6 during movement and further ensures the accuracy of punching sheet metal parts.

[0034] like Figure 3 、 Figure 4 As shown, an extrusion layer 14 is fixed to the opposite side of the two positioning clamps 7. The extrusion layer 14 is a rubber pad. It should be noted that when the two positioning clamps 7 are clamped on the side of the automobile sheet metal, the extrusion layer 14 is a rubber pad, which can prevent the positioning clamps 7 from causing damage to the automobile sheet metal.

[0035] Example 2

[0036] Example 2 is similar to Example 1, except that Figure 1As shown, the lifting mechanism 8 includes a fixed rod 81 and a telescopic push rod 82 fixed to the base 1. There are at least two fixed rods 81, each movably connected to a lifting plate 83. The bottom of the lifting plate 83 is connected to the telescopic end of the telescopic push rod 82. A second driving member 9 is mounted on the upper surface of the lifting plate 83. In this embodiment, when the telescopic push rod 82 telescopes, it drives the lifting plate 83 connected to it to move up and down along the fixed rod 81. Because the second driving member 9 is mounted on the lifting plate 83, when the lifting plate 83 moves up and down along the fixed rod 81, the lifting plate 83 drives the workbench 3 up and down along the guide rod 2 via the second driving member 9. It should be noted that the sliding connection between the lifting plate 83 and the fixed rod 81 ensures the stability of the lifting plate 83's movement, and indirectly ensures the stability of the workbench 3's up and down movement along the guide rod 2. It should be noted that the telescopic push rod 82 can be any of hydraulic, pneumatic, and electric telescopic push rods.

[0037] Example 3

[0038] Example 3 is similar to Example 2, except that Figure 1 As shown, the base 1 has a hollow interior structure 13, within which the lifting mechanism 8 is housed. The bottom ends of the fixed rod 81 and the telescopic push rod 82 are respectively connected to the inner bottom wall of the base 1. In this embodiment, since the base 1 has a hollow interior structure 13 and the lifting mechanism 8 is housed within this hollow structure 13, the vertical height of the entire automotive sheet metal punching device can be reduced. Due to the hollow interior structure 13 of the base 1, the guide rod 2 can be mounted on the side wall of the base 1.

[0039] like Figure 1 As shown, the fixed rod 81 extends to the outside of the base 1, and a limit plate 84 is fixed to the top of the fixed rod 81. In the process of the lifting mechanism 8 driving the workbench 3 to move downward along the guide rod 2, since the limit plate 84 is provided at one end of the fixed rod 81 extending outside the base 1, the limit plate 84 can abut against the lower bottom surface of the workbench 3, thereby preventing the workbench 3 from further descending and avoiding interference and collision between the workbench 3 and the base 1 and causing damage. It should be noted that the limit plate 84 can be made of a soft material so that the limit plate 84 has a certain buffering effect. It should also be pointed out that a sensor for detecting the position of the workbench 3 can be provided on the fixed rod 81 and at the position of the limit plate 84. When the workbench 3 is close to the limit plate 84, the sensor transmits the sensed signal to the controller, and the controller controls the telescopic push rod 82 to stop moving to prevent the workbench 3 from further moving downward along the guide rod 2 and damaging the limit plate 84.

[0040] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features 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.

[0041] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. An automobile sheet metal punching device, characterized in that: The invention comprises a base (1), guide rods (2) are fixed on both sides of the top of the base (1), the guide rods (2) are slidably connected to a workbench (3), a top plate (4) is fixed on the top of the guide rods (2), a first driving member (5) is provided on the top plate (4), the first driving member (5) is connected to a punching knife (6) to drive the punching knife (6) to move toward or away from the workbench (3); two positioning clamps (7) arranged opposite to each other are movably connected on the workbench (3), a lifting mechanism (8) is provided on the base (1), a second driving member (9) is installed on the top of the lifting mechanism (8), and the second driving member (9) is respectively connected to the two positioning clamps (7) to drive the two positioning clamps (7) to move toward or away from each other.

2. The automobile sheet metal punching device according to claim 1, characterized in that: The second driving member (9) includes a driving motor (91), a connecting plate (92) and a connecting plate (93), the output shaft of the driving motor (91) is connected to the connecting plate (92), the two ends of the connecting plate (92) are respectively connected to a driving rod (94) hinged to the connecting plate, the other end of the driving rod (94) is connected to a connecting column (95) connected to the connecting plate, a guide groove is provided on the workbench (3) along the movement direction of the positioning clamp (7), the connecting column (95) is located in the guide groove and the other end of the connecting column (95) extends out of the top of the workbench (3), one end of the connecting column (95) extending out of the workbench (3) is connected to the connecting plate (93), a slider (97) slidably connected to the workbench (3) is fixed to the bottom of the connecting plate (93), and the two positioning clamps (7) are respectively arranged on the opposite sides of the two connecting plates (93).

3. The automobile sheet metal punching device according to claim 2, characterized in that: A slide seat (10) is provided on the workbench (3), the slide seat (10) is located on both sides of the guide groove, and the slider (97) is slidably connected to the slide seat (10).

4. The automobile sheet metal punching device according to claim 2, characterized in that: An elastic member (11) having one end connected thereto is connected to one side opposite to the two connecting plates (93), and the other end of the elastic member (11) is connected to the positioning clamping plate (7); a sliding rod (99) is slidably connected to the connecting plate (93), and the sliding rod (99) is connected to a side of the positioning clamping plate (7) close to the connecting plate (93).

5. The automobile sheet metal punching device according to claim 2, characterized in that: Connecting columns (98) are provided at opposite ends of the connecting plate (92), and each connecting column (98) is hinged to one end of the driving rod (94).

6. The automobile sheet metal punching device according to claim 1, characterized in that: The guide rod (2) is also slidably connected to a movable plate (12), which is located above the workbench (3) and below the first driving member (5). The upper surface of the movable plate (12) is connected to the first driving member (5), and the punching knife (6) is installed on the lower surface of the movable plate (12).

7. The automobile sheet metal punching device according to claim 1, characterized in that: The lifting mechanism (8) comprises a fixed rod (81) and a telescopic push rod (82) fixed on the base (1), at least two fixed rods (81) are provided, and the two fixed rods (81) are movably connected to a lifting plate (83), the bottom of the lifting plate (83) is connected to the telescopic end of the telescopic push rod (82), and the second driving member (9) is installed on the upper surface of the lifting plate (83).

8. The automobile sheet metal punching device according to claim 7, characterized in that: The interior of the base (1) is a hollow structure (13), the lifting mechanism (8) is accommodated in the hollow structure (13), and the bottom ends of the fixing rod (81) and the telescopic push rod (82) are respectively connected to the inner bottom wall of the base (1).

9. The automobile sheet metal punching device according to claim 8, characterized in that: The fixing rod (81) extends to the outside of the base (1), and a limiting plate (84) is fixed on the top of the fixing rod (81).

10. The automobile sheet metal punching device according to any one of claims 1 to 9, characterized in that: An extrusion layer (14) is fixed on opposite sides of the two positioning clamps (7), and the extrusion layer (14) is a rubber pad.

Images