Aluminum alloy casting positioning and punching device

Abstract

The utility model discloses an aluminum alloy casting positioning and punching device which comprises a working table, a clamping device and a punching device are arranged on the working table, a first positioning groove is formed in the working table, a second positioning groove is formed in the outer edge of the first positioning groove, a boss is arranged in the first positioning groove, and a clamping device is arranged on the second positioning groove. The clamping device comprises a mounting plate, a supporting frame, a telescopic air cylinder, a connecting frame, a pressing plate and a pressing block, the supporting frame is fixedly arranged on the upper surface of the mounting plate, the first positioning groove and the second positioning groove are formed in the working table, a casting can be conveniently positioned, the clamping device is arranged on the working table, and therefore the casting can be conveniently clamped. And after the casting is positioned, the casting can be clamped and fixed through the clamping device, so that the casting is prevented from shifting in the punching process or when the punching needle moves upwards, and the punching precision can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of punching devices, and more specifically, to a positioning punching device for aluminum alloy castings. Background Art

[0002] Some parts are designed to be hollow shells, and ears are provided on the outside of the hollow shells. The existing ears and hollow shells are generally welded together, which requires multiple steps, and the welds need to be further polished. The welds are also prone to loose welding and breakage. In order to avoid this defect, some companies use one-piece casting to generate hollow shells and ears during design, without the need for further welding. The above-mentioned hollow shells often have several holes at the bottom, and punching is used when processing the holes. The current punching device is not easy to position the above-mentioned castings, resulting in inaccurate punching positions and low punching accuracy. In addition, the existing castings are generally placed directly on the workbench. When the punch needle moves upward after punching, it is easy to lift the casting from the workbench, making it difficult to unload. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the problems existing in the prior art, the utility model provides an aluminum alloy casting positioning punching device to solve the technical problem mentioned in the background technology that the current punching device is not easy to position the above-mentioned casting, resulting in inaccurate punching position and low punching accuracy.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a positioning and punching device for aluminum alloy castings, comprising a workbench, a clamping device and a punching device are provided on the workbench, a first positioning groove is opened on the workbench, a second positioning groove is provided on the outer edge of the first positioning groove, a boss is provided in the first positioning groove, the clamping device comprises a mounting plate, a support frame, a telescopic cylinder, a connecting frame, a pressing plate and a pressing block, the support frame is fixedly arranged on the upper surface of the mounting plate, the telescopic cylinder is arranged on the lower surface of the mounting plate, the telescopic end of the telescopic cylinder passes through the mounting plate and is connected to the connecting frame, a connecting rod is provided on the connecting frame, a first sliding groove cooperating with the connecting rod is provided on the pressing plate, the middle section of the pressing plate is rotatably connected to the support frame, the pressing block is fixedly arranged on the lower surface of the pressing plate away from one end of the connecting frame, a support rod is provided on the upper surface of the workbench, a fixing plate is provided on the upper surface of the support rod, and the punching device is arranged on the fixing plate.

[0007] The utility model is further configured as follows: the punching device includes a lifting plate, a punching needle, a punching cylinder and a guide rod; the punching cylinder is arranged on the fixed plate, and its telescopic end penetrates the fixed plate and is connected to the lifting plate; the guide rod is arranged on the upper surface of the lifting plate, and the top end of the guide rod penetrates the fixed plate and is slidably connected to the fixed plate; a plurality of punching needles are provided, and all are arranged on the lifting plate, so as to facilitate punching of the casting.

[0008] The utility model is further configured such that a limit plate is fixedly provided outside the punch needle, a connecting screw is provided on the top of the punch needle, a connecting nut is provided on the external thread sleeve of the connecting screw, a through hole matching the punch needle is provided on the lifting plate, and the connecting screw is arranged in the through hole, which is convenient for replacing and installing the punch needle.

[0009] The utility model is further configured that the boss is provided with a feeding hole cooperating with the punching needle, so as to facilitate the feeding of the waste material after the punching.

[0010] The utility model is further configured that sliding rods are provided on both sides of the mounting plate, a through slot matching the mounting plate is provided on the workbench, and second sliding slots matching the sliding rods are provided on both sides of the through slot to facilitate rotating and opening the mounting plate.

[0011] The utility model is further configured that a limiting plate cooperating with the mounting plate is arranged in the through slot, and a first limiting slot cooperating with the mounting plate is arranged at one end of the through slot close to the first positioning slot, so as to facilitate limiting and fixing the mounting plate.

[0012] The utility model is further configured that the outer edge of the limit plate is provided with a positioning piece to facilitate positioning of the punch needle.

[0013] The utility model is further configured that the lower surface of the lifting plate is provided with a second limiting groove that cooperates with the limiting plate and the positioning sheet to facilitate positioning of the punching needle.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides an aluminum alloy casting positioning punching device, which has the following beneficial effects:

[0016] 1. In the utility model, a first positioning groove and a second positioning groove are provided on the workbench to facilitate positioning of the casting, and a clamping device is provided on the workbench. After the casting is positioned, the casting can be clamped and fixed by the clamping device to prevent the casting from shifting during the punching process or when the punch needle moves upward, thereby improving the punching accuracy.

[0017] 2. In the utility model, a punching needle is arranged under the lifting plate. The lifting plate moves up and down to drive the punching needle to punch the casting, and the punching needle is inserted into the through hole. A connecting screw is arranged on the top of the punching needle. The connecting screw and the connecting nut are threadedly connected, which is convenient for installing and replacing the punching needle, and it is fixed after installation.

[0018] 3. The mounting plate in the utility model can be rotated and opened, so that the pressing plate is away from the top of the casting, which is convenient for taking the casting out of the first positioning groove and the second positioning groove for unloading and preventing interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of an aluminum alloy casting positioning punching device and a casting connection;

[0020] Figure 2 for Figure 1 Schematic diagram of the overall structure without the casting;

[0021] Figure 3 It is a schematic diagram of the connection structure between the clamping device and the workbench;

[0022] Figure 4 This is a structural diagram of the working table and the mounting plate when they are not connected;

[0023] Figure 5 This is a structural diagram of the lifting plate and the punching needle when they are not connected.

[0024] In the figure: 1. workbench; 2. first positioning groove; 3. second positioning groove; 4. boss; 5. mounting plate; 6. support frame; 7. telescopic cylinder; 8. connecting frame; 9. clamping plate; 10. clamping block; 11. connecting rod; 12. first slide groove; 13. support rod; 14. fixing plate; 15. lifting plate; 16. punching needle; 17. punching cylinder; 18. guide rod; 19. limiting plate; 20. connecting screw; 21. connecting nut; 22. through hole; 23. feeding hole; 24. slide rod; 25. through groove; 26. second slide groove; 27. baffle; 28. first limiting groove; 29. ​​positioning piece; 30. second limiting groove. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0027] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0028] See also Figure 1-5 , a positioning and punching device for aluminum alloy castings, comprising a workbench 1, a clamping device and a punching device are provided on the workbench 1, a first positioning groove 2 is opened on the workbench 1, a second positioning groove 3 is provided on the outer edge of the first positioning groove 2, a boss 4 is provided in the first positioning groove 2, the clamping device comprises a mounting plate 5, a support frame 6, a telescopic cylinder 7, a connecting frame 8, a pressing plate 9 and a pressing block 10, the support frame 6 is fixedly arranged on the upper surface of the mounting plate 5, the telescopic cylinder 7 is arranged on the lower surface of the mounting plate 5, the telescopic end of the telescopic cylinder 7 passes through the mounting plate 5 and is connected to the connecting frame 8, a connecting rod 11 is provided on the connecting frame 8, a first slide groove 12 cooperating with the connecting rod 11 is provided on the pressing plate 9, the middle section of the pressing plate 9 is rotatably connected to the support frame 6, the pressing block 10 is fixedly arranged on the lower surface of the pressing plate 9 away from the end of the connecting frame 8, a support rod 13 is provided on the upper surface of the workbench 1, a fixing plate 14 is provided on the upper surface of the support rod 13, and the punching device is arranged on the fixing plate 14. Slide bars 24 are provided on both sides of the mounting plate 5, a through slot 25 cooperating with the mounting plate 5 is provided on the workbench 1, and second slide slots 26 cooperating with the slide bars 24 are provided on both sides of the through slot 25. A baffle 27 cooperating with the mounting plate 5 is provided in the through slot 25, and a first limiting slot 28 cooperating with the mounting plate 5 is provided at one end of the through slot 25 close to the first positioning slot 2. A positioning piece 29 is provided on the outer edge of the limiting plate 19. A second limiting slot 30 cooperating with the limiting plate 19 and the positioning piece 29 is provided on the lower surface of the lifting plate 15.

[0029] In this embodiment, the casting is placed in the first positioning groove 2, and the ear on the casting is placed in the second positioning groove 3, and the casting is sleeved outside the boss 4. At this time, the mounting plate 5 is rotated to rotate around the axis of the slide rod 24 until the mounting plate 5 and the baffle 27 are fitted. At this time, the mounting plate 5 is pushed to be inserted into the first limit groove 28. During this process, the slide rod 24 moves in the second slide groove 26.

[0030] More specifically, after the mounting plate 5 is installed, the telescopic cylinder 7 is started to extend it, driving the connecting frame 8 to move upward, thereby driving the clamping plate 9 to move upward away from one end of the clamping block 10, thereby driving the clamping block 10 to move downward and press on the ear of the casting to clamp and fix the casting.

[0031] See also Figure 1-5As an implementation method of the punching needle device: the punching device includes a lifting plate 15, a punching needle 16, a punching cylinder 17 and a guide rod 18. The punching cylinder 17 is arranged on the fixed plate 14, and its telescopic end penetrates the fixed plate 14 and is connected to the lifting plate 15. The guide rod 18 is arranged on the upper surface of the lifting plate 15. The top of the guide rod 18 penetrates the fixed plate 14 and is slidably connected to the fixed plate 14. There are several punching needles 16, and they are all arranged on the lifting plate 15. A limit plate 19 is fixed outside the punching needle 16, and a connecting screw 20 is provided on the top of the punching needle 16. The connecting screw 20 is provided with a connecting nut 21 on the external thread sleeve. A through hole 22 cooperating with the punching needle 16 is provided on the lifting plate 15, and the connecting screw 20 is arranged in the through hole 22. A feeding hole 23 cooperating with the punching needle 16 is provided on the boss 4.

[0032] Specifically, the punch needle 16 is inserted into the through hole 22 from the lower surface of the lifting plate 15 until the limit plate 19 and the positioning plate and the second limit groove 30 on the punch needle 16 cooperate. At this time, the connecting nut 21 is threadedly sleeved on the outside of the connecting screw 20 until the connecting nut 21 and the upper surface of the lifting plate 15 fit together. At this time, the installation and fixation of the punch needle 16 are completed. After the casting is installed, the punching cylinder 17 is started to extend it to drive the punch needle 16 to move downward along the direction of the guide rod 18 to punch the casting, and the waste after punching is discharged from the discharge hole 23.

[0033] In summary, when the overall equipment is in use:

[0034] Place the casting in the first positioning groove 2, and the ear on the casting in the second positioning groove 3, and the casting is sleeved outside the boss 4. At this time, rotate the mounting plate 5 to rotate it around the axis of the slide rod 24 until the mounting plate 5 and the baffle 27 are fitted. At this time, push the mounting plate 5 to insert it into the first limit groove 28. During this process, the slide rod 24 moves in the second slide groove 26.

[0035] After the mounting plate 5 is installed, the telescopic cylinder 7 is started to extend it, driving the connecting frame 8 to move upward, thereby driving the clamping plate 9 to move upward away from one end of the clamping block 10, thereby driving the clamping block 10 to move downward and press on the ear of the casting to clamp and fix the casting.

[0036] Insert the punching needle 16 into the through hole 22 from the lower surface of the lifting plate 15 until the limit plate 19 on the punching needle 16 cooperates with the positioning plate and the second limit groove 30. At this time, the connecting nut 21 is threadedly sleeved on the outside of the connecting screw 20 until the connecting nut 21 and the upper surface of the lifting plate 15 fit together. At this time, the installation and fixation of the punching needle 16 are completed. After the casting is installed, start the punching cylinder 17 to extend it and drive the punching needle 16 to move downward along the direction of the guide rod 18 to punch the casting. The waste after punching is discharged from the discharge hole 23.

[0037] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A positioning punching device for aluminum alloy castings, comprising a workbench (1), characterized in that: The workbench (1) is provided with a clamping device and a punching device. The workbench (1) is provided with a first positioning groove (2). The outer edge of the first positioning groove (2) is provided with a second positioning groove (3). The first positioning groove (2) is provided with a boss (4). The clamping device comprises a mounting plate (5), a support frame (6), a telescopic cylinder (7), a connecting frame (8), a pressing plate (9) and a pressing block (10). The support frame (6) is fixedly arranged on the upper surface of the mounting plate (5). The telescopic cylinder (7) is arranged on the lower surface of the mounting plate (5). ) passes through the mounting plate (5) and is connected to the connecting frame (8), a connecting rod (11) is provided on the connecting frame (8), a first slide groove (12) cooperating with the connecting rod (11) is provided on the clamping plate (9), a middle section of the clamping plate (9) is rotatably connected to the support frame (6), a clamping block (10) is fixedly arranged on the lower surface of the clamping plate (9) away from the end of the connecting frame (8), a supporting rod (13) is provided on the upper surface of the workbench (1), a fixing plate (14) is provided on the upper surface of the supporting rod (13), and the punching device is arranged on the fixing plate (14).

2. The aluminum alloy casting positioning punching device according to claim 1 is characterized in that: The punching device comprises a lifting plate (15), a punching needle (16), a punching cylinder (17) and a guide rod (18); the punching cylinder (17) is arranged on the fixed plate (14), and its telescopic end penetrates the fixed plate (14) and is connected to the lifting plate (15); the guide rod (18) is arranged on the upper surface of the lifting plate (15), and the top end of the guide rod (18) penetrates the fixed plate (14) and is slidably connected to the fixed plate (14); a plurality of punching needles (16) are arranged, and all are arranged on the lifting plate (15).

3. The positioning punching device for aluminum alloy castings according to claim 2 is characterized in that: The punching needle (16) is fixedly provided with a limit plate (19) on the outside, a connecting screw (20) is provided on the top of the punching needle (16), a connecting nut (21) is provided on the external thread sleeve of the connecting screw (20), a through hole (22) matching with the punching needle (16) is provided on the lifting plate (15), and the connecting screw (20) is arranged in the through hole (22).

4. The aluminum alloy casting positioning punching device according to claim 2, characterized in that: The boss (4) is provided with a feeding hole (23) cooperating with the punching needle (16).

5. The positioning punching device for aluminum alloy castings according to claim 1 is characterized in that: Slide bars (24) are provided on both sides of the mounting plate (5), a through slot (25) cooperating with the mounting plate (5) is provided on the workbench (1), and second slide slots (26) cooperating with the slide bars (24) are provided on both sides of the through slot (25).

6. The positioning punching device for aluminum alloy castings according to claim 5 is characterized in that: A baffle (27) cooperating with the mounting plate (5) is arranged in the through slot (25), and a first limiting slot (28) cooperating with the mounting plate (5) is arranged at one end of the through slot (25) close to the first positioning slot (2).

7. The positioning punching device for aluminum alloy castings according to claim 3 is characterized in that: A positioning piece (29) is provided on the outer edge of the limiting plate (19).

8. The positioning punching device for aluminum alloy castings according to claim 7 is characterized in that: The lower surface of the lifting plate (15) is provided with a second limiting groove (30) that cooperates with the limiting plate (19) and the positioning piece (29).

Images