Cutter switching device of hydraulic punching machine

Abstract

The utility model relates to a tool switching device of a hydraulic punching machine, and aims to solve the problems that the conventional hydraulic punching machine is complicated in action, more time is consumed, the working efficiency is reduced, the working cost is high, and the like due to the fact that the conventional tool is dismounted and then taken out from a tool magazine for mounting. The device comprises a punching table, a hydraulic cylinder is installed on the punching table, a punching shaft is installed at the driving end of the hydraulic cylinder, a through hole is formed in the punching shaft, a switching disc is rotationally connected into the through hole through a rotating shaft, a plurality of tool holes are formed in the outer side of the switching disc, and the tool holes are communicated with the hydraulic cylinder. According to the punching tool switching device, punching tools of different sizes are arranged in the tool holes, the punching tools can be conveniently switched, the punching tools can be contained in the tool holes when the punching tools are switched, and therefore the situation that hands of personnel are scratched when the punching tools are switched is avoided, and the tool switching safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic punching machines, specifically a tool switching device for hydraulic punching machines. Background Technology

[0002] Hydraulic punching machines operate based on the fundamental principle of hydraulic transmission, namely Pascal's principle. During operation, the sheet metal or profile to be punched is first placed on the die. Then, the hydraulic system is activated, raising the punch to a certain position before rapidly pressing downwards. The punching process automatically stops when the predetermined position is reached, completing the punching process.

[0003] Existing hydraulic punching machines typically involve disassembling existing cutting tools and then retrieving and installing new ones from the tool magazine. This process is cumbersome, time-consuming, and reduces work efficiency. Furthermore, manual tool replacement can easily result in injuries from the tool head. Therefore, a new technical solution is needed to address these issues. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a tool switching device for a hydraulic punching machine. This device solves the technical problems of current hydraulic punching machines, which generally involve disassembling the existing tools and then taking out the tools from the tool magazine for installation. This process is complicated, time-consuming, and reduces work efficiency. Furthermore, it is easy for workers to be injured by the tool head when changing the tool head.

[0005] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: a hydraulic punching machine tool switching device is designed, including a punching table, a hydraulic cylinder is installed on the punching table, a punching shaft is installed on the driving end of the hydraulic cylinder, a through hole is opened on the punching shaft, a switching disk is rotatably connected to the through hole through a rotating shaft, a plurality of tool holes are opened on the outer side of the switching disk, and punching tools of different sizes are provided in the plurality of tool holes, a plurality of threaded holes are opened on the switching disk, and the plurality of threaded holes correspond to the plurality of punching tools respectively, a fixing bolt is rotatably passed through one end of the outer side of the punching shaft, and the fixing bolt is threadedly connected to one of the threaded holes.

[0006] Preferably, the switching disk has multiple rectangular holes at both ends, and the rectangular holes on the same side are respectively connected to multiple tool holes. Limiting grooves are formed on both sides of the inner cavity of each tool hole. Multiple baffles are equidistantly installed in each limiting groove. A moving rod is provided in each limiting groove, and the moving rod is respectively connected to multiple punching tools. Insert plates slide through both sides of the inner cavity of each moving rod, and one end of the insert plate is inclined. An inverted trapezoidal block is provided in the inner cavity of the moving rod. Guide grooves are formed at both ends of the inverted trapezoidal block. Guide blocks are slidably connected in both guide grooves, and the two guide blocks are respectively connected to two insert plates. A push rod is connected below the inverted trapezoidal block and passes through the moving rod. A first spring is sleeved on the outside of the push rod inside the inner cavity of the moving rod.

[0007] Preferably, the movable rod is rectangular and is slidably connected within the rectangular hole.

[0008] Preferably, the two ends of the first spring are connected to the inner cavities of the inverted trapezoidal block and the moving rod, respectively, and the first spring is always in a stretched state.

[0009] Preferably, a plurality of nameplates are installed on the front side of the switching disk, and the plurality of nameplates correspond to the plurality of rectangular holes respectively.

[0010] Preferably, the distance between two adjacent baffles in the plurality of baffles is the same as the thickness of the insert plate, and the inner width of the limiting groove is the same as the width of the insert plate.

[0011] Preferably, a second spring is connected to the top of the inner cavity of the tool hole, and the other end of the second spring is connected to the punching tool.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention combines a switching disc, a fixing bolt, a threaded hole, a punching tool, a tool hole, a rectangular hole, a moving rod, a limiting groove, a baffle, an insert plate, an inverted trapezoidal block, a guide groove, a guide block, and a push rod. The rotation of the switching disc and the fixing bolt secure the switching disc, facilitating the switching of the punching tool. Furthermore, during tool switching, the punching tool is housed within the tool hole, preventing hand injuries and improving safety. When a particular punching tool is in use, pulling the moving rod downwards causes the insert plate to pass over the baffle and insert between adjacent baffles, limiting the punching tool's position. The first spring pull continuously moves the inverted trapezoidal block downwards, ensuring the insert plate is stably positioned between adjacent baffles, thus improving the stability of the punching tool during use. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the switching disk structure of this utility model;

[0016] Figure 3 This is an enlarged view of point A in this utility model;

[0017] Figure 4 This is a sectional front view of the movable rod of this utility model.

[0018] In the diagram: 1. Punching table; 11. Hydraulic cylinder; 12. Punching shaft; 13. Through hole; 2. Switching disc; 21. Punching tool; 22. Fixing bolt; 23. Threaded hole; 24. Tool hole; 25. Rectangular hole; 3. Nameplate; 4. Moving rod; 41. Push rod; 42. Limiting groove; 43. Baffle; 44. Inverted trapezoidal block; 45. Insert plate; 46. Guide block; 47. Guide groove; 48. First spring; 5. Second spring. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Example 1: A tool switching device for a hydraulic punching machine, see [link / reference] Figures 1 to 4The system includes a punching table 1, on which a hydraulic cylinder 11 is mounted. A punching shaft 12 is mounted on the drive end of the hydraulic cylinder 11. A through hole 13 is formed on the punching shaft 12. A switching disk 2 is rotatably connected to the through hole 13 via a rotating shaft. Multiple tool holes 24 are formed on the outer side of the switching disk 2, and punching tools 21 of different sizes are set in each of the multiple tool holes 24. Multiple threaded holes 23 are formed on the switching disk 2, and the multiple threaded holes 23 correspond to multiple punching tools 21 respectively. A fixing bolt 22 is rotatably passed through one end of the outer side of the punching shaft 12, and the fixing bolt 22 is threadedly connected to one of the threaded holes 23. Multiple rectangular holes 25 are formed at both ends of the switching disk 2. Each rectangular hole 25 communicates with multiple tool holes 24. Limiting grooves 42 are formed on both sides of the inner cavity of each tool hole 24. Multiple baffles 43 are equidistantly installed within each limiting groove 42. Moving rods 4 are provided within each limiting groove 42 and are connected to multiple punching tools 21. Insert plates 45 slide through both sides of the inner cavity of each moving rod 4, with one end of the insert plate 45 being beveled. An inverted trapezoidal block 44 is provided within the inner cavity of each moving rod 4. Guide grooves 47 are formed at both ends of the inverted trapezoidal block 44. Guide blocks 46 are slidably connected within each guide groove 47 and are connected to two insert plates 45 respectively. A push rod 41 is connected below and passes through the moving rod 4. A first spring 48 is sleeved on the outside of the push rod 41 inside the moving rod 4. The two ends of the first spring 48 are connected to the inverted trapezoidal block 44 and the inner cavity of the moving rod 4, respectively. The first spring 48 is always in a stretched state. During operation, by loosening the fixing bolt 22, the switching disk 2 can be rotated to make the required punching tool 21 vertically downward. When the appropriate punching tool 21 is adjusted, the fixing bolt 22 is turned to connect with the threaded hole 23, thereby fixing the required punching tool 21, which facilitates the switching of the punching tool 21. When switching the punching tool 21, the push rod 41 is squeezed to drive the inverted trapezoidal block 44 upward. The movement, in conjunction with the guide block 46 and guide groove 47, causes the insert plate 45 to disengage from the adjacent baffle 43. Then, the moving rod 4 is pushed upward to house the punching tool 21 in the tool hole 24, thereby avoiding hand injuries during the switching of the punching tool 21 and improving the safety of tool switching. When a certain punching tool 21 is used, the moving rod 4 is pulled downward to make the insert plate 45 pass over the baffle 43 and insert between different adjacent baffles 43 to limit the punching tool 21. With the pull of the first spring 48, the inverted trapezoidal block 44 is pulled downward continuously, so that the insert plate 45 is stably placed between adjacent baffles 43, thereby improving the stability of the punching tool 21 during use.

[0021] For details, see Figure 2 The movable rod 4 is rectangular and is slidably connected within the rectangular hole 25 to improve the stability of the movable rod 4 as it moves within the rectangular hole 25.

[0022] It is worth noting that, see Figure 2 Multiple nameplates 3 are installed on the front side of the switching disk 2, and the multiple nameplates 3 correspond to multiple rectangular holes 25 respectively. Different punching tools 21 are marked by the nameplates 3, which facilitates the quick switching of the punching tools 21 used.

[0023] It is worth noting that, see Figure 3 and Figure 4 The distance between two adjacent baffles 43 is the same as the thickness of the insert plate 45, and the inner width of the limiting groove 42 is the same as the width of the insert plate 45. This is used to improve the stability of the insert plate 45 connected between adjacent baffles 43, and further improve the stability of the punching tool 21 during use.

[0024] It is worth noting that, see Figure 3 A second spring 5 is connected to the top of the inner cavity of the tool hole 24. The other end of the second spring 5 is connected to the punching tool 21. The spring facilitates the punching tool 21 to be pushed out of the tool hole 24 for use.

[0025] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0026] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A hydraulic punching machine tool switching device, comprising a punching table (1), characterized in that, A hydraulic cylinder (11) is installed on the punching table (1). A punching shaft (12) is installed on the driving end of the hydraulic cylinder (11). A rectangular hole (25) is opened on the punching shaft (12). A switching disk (2) is rotatably connected to the rectangular hole (25) through a rotating shaft. A plurality of tool holes (24) are opened on the outer side of the switching disk (2), and punching tools (21) of different sizes are provided in the plurality of tool holes (24). A plurality of threaded holes (23) are opened on the switching disk (2), and the plurality of threaded holes (23) correspond to the plurality of punching tools (21) respectively. A fixing bolt (22) is rotatably passed through one end of the outer side of the punching shaft (12), and the fixing bolt (22) is threadedly connected to one of the threaded holes (23).

2. The hydraulic punching machine tool switching device as described in claim 1, characterized in that, The switching disk (2) has multiple rectangular holes (25) at both ends. The multiple rectangular holes (25) on the same side are connected to multiple tool holes (24). Limiting grooves (42) are opened on both sides of the inner cavity of the multiple tool holes (24). Multiple baffles (43) are installed at equal intervals in the multiple limiting grooves (42). Moving rods (4) are provided in the multiple limiting grooves (42). The multiple moving rods (4) are connected to multiple punching tools (21). Insert plates (45) slide through both sides of the inner cavity of the multiple moving rods (4). The insert plate (45) has an inclined surface at one end. The inner cavity of the moving rod (4) is provided with an inverted trapezoidal block (44). Both ends of the inverted trapezoidal block (44) are provided with guide grooves (47). Guide blocks (46) are slidably connected in both guide grooves (47). The two guide blocks (46) are respectively connected to the two insert plates (45). A push rod (41) is connected below the inverted trapezoidal block (44) and the push rod (41) passes through the moving rod (4). A first spring (48) is sleeved on the outside of the push rod (41) in the inner cavity of the moving rod (4).

3. The hydraulic punching machine tool switching device as described in claim 2, characterized in that, The movable rod (4) is rectangular and is slidably connected in the rectangular hole (25).

4. The hydraulic punching machine tool switching device as described in claim 2, characterized in that, The two ends of the first spring (48) are connected to the inner cavity of the inverted trapezoidal block (44) and the moving rod (4), respectively, and the first spring (48) is always in a stretched state.

5. The hydraulic punching machine tool switching device as described in claim 1, characterized in that, The front side of the switching disk (2) is equipped with multiple nameplates (3), and the multiple nameplates (3) correspond to the multiple rectangular holes (25) respectively.

6. The hydraulic punching machine tool switching device as described in claim 2, characterized in that, The distance between two adjacent baffles (43) is the same as the thickness of the insert plate (45), and the inner width of the limiting groove (42) is the same as the width of the insert plate (45).

7. The hydraulic punching machine tool switching device as described in claim 1, characterized in that, A second spring (5) is connected to the top of the inner cavity of the tool hole (24), and the other end of the second spring (5) is connected to the punching tool (21).

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