Eccentric punching device

Abstract

The utility model discloses an eccentric punching device which comprises a bench drill body and a drill bit and further comprises a fixing frame, a transmission assembly and a kettle body fixing base used for placing a kettle, the transmission assembly is rotationally arranged on the fixing frame, a first transmission shaft is arranged on the bench drill body and arranged at one end of the transmission assembly, and a second transmission shaft is arranged at the other end of the transmission assembly. A second transmission shaft is arranged at the other end of the transmission assembly, the upper end of the drill bit is arranged on the second transmission shaft, and the first transmission shaft and the second transmission shaft are located on different vertical planes. By means of the structure, the drill bit and the bench drill body are eccentrically arranged, so that when the inner side wall of the U-shaped handle is punched, the end, close to the drill bit, of the fixing frame can stretch into the kettle body, the bench drill body is prevented from making contact with the lifting lug and the kettle body, and the kettle body can be kept complete when the U-shaped handle is detached; and subsequent production work of the kettle is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of bench drills, in particular to an eccentric punching device. Background Art

[0002] A kettle is a tool for holding water. At the same time, in order to facilitate the taking of the kettle, a U-shaped handle is installed at the opening of the kettle. In the prior art, a lifting lug is provided on the kettle, and both ends of the handle are fixed to the lifting lug by stainless steel rivets. The width of the head of the stainless steel rivet is small, and a folded edge is formed to be pressed and fixed inside the lifting lug, so as to improve the aesthetics of the handle.

[0003] When there are defects in the installed handle, a bench drill is needed to punch holes in the head of the stainless steel rivet, so as to break the folded edge at the head of the stainless steel rivet and remove the stainless steel rivet from the handle. However, when drilling holes inside the handle, the chuck and the drill bit on the bench drill are coaxially arranged. The distance between the stainless steel rivet and the kettle is limited, and the chuck is easy to touch the lifting lug or the kettle body, thus easily causing damage to the kettle. Therefore, improvements are needed. Summary of the Invention

[0004] Aiming at the defects in the prior art that when punching holes in the inner side wall of a U-shaped part by a bench drill, the chuck is easy to touch the U-shaped part and cause damage to the U-shaped part, the utility model provides a new eccentric punching device.

[0005] In order to solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] An eccentric punching device includes a bench drill main body and a drill bit, and further includes a fixing frame, a transmission assembly and a kettle fixing seat for placing the kettle. The transmission assembly is rotatably arranged on the fixing frame. A first transmission shaft is arranged on the bench drill main body. The first transmission shaft is arranged at one end of the transmission assembly. A second transmission shaft is arranged at the other end of the transmission assembly. The upper end of the drill bit is arranged on the second transmission shaft. The first transmission shaft and the second transmission shaft are in different vertical planes.

[0007] Through the above structure, the drill bit and the bench drill main body are eccentrically arranged. Thus, when punching holes in the inner side wall of the U-shaped handle, one end of the fixing frame close to the drill bit can extend into the kettle body, avoiding contact between the bench drill main body and the lifting lug and the kettle body. Therefore, the kettle body can remain intact when removing the U-shaped handle, facilitating the subsequent production work of the kettle.

[0008] Preferably, for an eccentric punching device described above, the transmission assembly includes a transmission belt, deep groove ball bearings and two synchronous belt pulleys. The synchronous belt pulleys are respectively sleeved on the first transmission shaft and the second transmission shaft and are connected to their corresponding first transmission shaft and second transmission shaft; the deep groove ball bearings are sleeved on the first transmission shaft and the second transmission shaft, and the deep groove ball bearings are located at both ends of the same synchronous belt pulley; both ends of the transmission belt are sleeved on the two synchronous belt pulleys, and the first transmission shaft drives the second transmission shaft to rotate through the synchronous belt pulley, the transmission belt and the deep groove ball bearing.

[0009] The deep groove ball bearings can support the synchronous belt pulleys and reduce friction, enabling the synchronous belt pulleys to work stably and improving the stability of the eccentric bench drill when punching U-shaped parts; the first transmission shaft drives the second transmission shaft to rotate through the synchronous belt pulley and the transmission belt, which has the advantages of simple structure and convenient assembly.

[0010] Preferably, for an eccentric punching device described above, a placement post for placing the handle is provided on the kettle body fixing seat, and the placement post extends in the vertical direction.

[0011] The setting of the placement post provides a placement position for the handle, and at the same time reduces the distance between the drill bit and the handle through the placement post, further facilitating the punching work.

[0012] Preferably, for an eccentric punching device described above, the placement post includes a column body and a nut. A through hole is provided on the kettle body fixing seat, and the end of the column body passes through the through hole and is threadedly connected to the kettle body fixing seat.

[0013] The placement post is threadedly connected to the through hole, so that the height of the placement post protruding from the upper surface of the kettle body fixing seat can be adjusted, and it can be adapted to the removal work of U-shaped parts of different sizes.

[0014] Preferably, for an eccentric punching device described above, a groove for placing the kettle body is provided on the upper surface of the kettle body fixing seat.

[0015] The setting of the groove increases the contact surface between the kettle body fixing seat and the kettle body, improves the stability of the kettle, not only facilitates the alignment of the drill bit and the stainless steel rivet, but also reduces the shaking of the kettle during the punching process.

[0016] Preferably, for an eccentric punching device described above, a reinforcement plate is sleeved outside the bench drill main body, and a fixing rod is provided on the fixing frame, and the end of the fixing rod is arranged on the reinforcement plate.

[0017] The bench drill main body is fixed through the reinforcement plate and the fixing rod, improving the stability of the eccentric bench drill during operation. Description of the Drawings

[0018] Figure 1 Structural schematic diagram of the present utility model;

[0019] Figure 2 Exploded structural schematic diagram of the present utility model showing the first transmission shaft, the second transmission shaft, the transmission belt, and the drill bit;

[0020] Figure 3 Cross-sectional view of the present utility model showing the first transmission shaft, the second transmission shaft, the transmission assembly, and the drill bit;

[0021] Figure 4 Exploded structural schematic diagram of the kettle body fixing seat and the placement post of the present utility model. Specific embodiments

[0022] The following combines the attached Figures 1-4 drawings and specific embodiments to further describe the present utility model in detail, but they are not limitations to the present utility model:

[0023] Embodiment 1

[0024] As Figures 1-4 shown, an eccentric drilling device includes a bench drill main body 1 and a drill bit 2, and further includes a fixing frame 3, a transmission assembly 4, and a kettle body fixing seat 5 for placing a kettle. The transmission assembly 4 is rotatably arranged on the fixing frame 3. A first transmission shaft 6 is arranged on the bench drill main body 1. The first transmission shaft 6 is arranged at one end of the transmission assembly 4. A second transmission shaft 7 is arranged at the other end of the transmission assembly 4. The upper end of the drill bit 2 is arranged on the second transmission shaft 7. The first transmission shaft 6 and the second transmission shaft 7 are in different vertical planes.

[0025] Preferably, the transmission assembly 4 includes a transmission belt 41, a deep groove ball bearing 42, and two synchronous belt pulleys 43. The synchronous belt pulleys 43 are respectively sleeved on the first transmission shaft 6 and the second transmission shaft 7 and are connected to the corresponding first transmission shaft 6 and second transmission shaft 7. The deep groove ball bearing 42 is sleeved on the first transmission shaft 6 and the second transmission shaft 7. The deep groove ball bearing 42 is located at both ends of the same synchronous belt pulley 43. Both ends of the transmission belt 41 are sleeved on the two synchronous belt pulleys 43. The first transmission shaft 6 drives the second transmission shaft 7 to rotate through the synchronous belt pulley 43, the transmission belt 41, and the deep groove ball bearing 42.

[0026] Preferably, a placement post 8 for placing the handle is arranged on the kettle body fixing seat 5. The placement post 8 extends in the vertical direction.

[0027] Preferably, the placement post 8 includes a column body 81 and a nut 82. A through hole 51 is opened on the kettle body fixing seat 5. The end of the column body 81 passes through the through hole 51 and is threadedly connected to the kettle body fixing seat 5.

[0028] Preferably, a groove 52 for placing the kettle body is formed on the upper surface of the kettle body fixing seat 5.

[0029] Preferably, a reinforcement plate 9 is sleeved outside the bench drill main body 1, a fixing rod 31 is arranged on the fixing frame 3, and the end of the fixing rod 31 is arranged on the reinforcement plate 9.

[0030] Specifically, as Figure 1 , Figure 2 shown, the fixing frame 3 is rectangular, the length direction of the fixing frame 3 extends along the horizontal direction, one end of the fixing rod 31 passes through the fixing frame 3 and is fixed to the reinforcement plate 9 by bolts, and a gasket is sleeved on the other end of the fixing rod 31 and fixed by screws.

[0031] As Figure 2 shown, the number of the synchronous belt pulleys 43 is two, a first connecting block and a second connecting block are respectively placed between the synchronous belt pulleys 43 and the first transmission shaft 6 and the second transmission shaft 7, two ends of the first connecting block are respectively inserted into the first transmission shaft 6 and the adjacent synchronous belt pulley 43, and two ends of the second connecting block are respectively inserted into the second transmission shaft 7 and the adjacent synchronous belt pulley 43, so as to realize the function that the first transmission shaft 6 drives the synchronous belt pulley 43 to rotate, and the synchronous belt pulley 43 drives the second transmission shaft 7 to rotate through the second connecting block.

[0032] As Figure 1 , Figure 4 shown, a penetration cavity for inserting the kettle spout is formed on the kettle body fixing seat 5, the number of the grooves 52 is two and they are symmetrically distributed on the upper surface of the kettle body fixing seat 5, and the grooves 52 are arc-shaped.

[0033] More specifically, as Figures 1-4 shown, when the handle of the kettle needs to be removed by the bench drill, first place the kettle on the kettle body fixing seat 5 so that the kettle spout penetrates into the penetration cavity, the kettle body edge is inserted into the groove 52, and the handle is placed on the placing post 8. At this time, one end of the fixing frame close to the drill bit 2 is inserted into the kettle, and then the bench drill main body 1 is started. The bench drill main body 1 drives the drill bit 2 to rotate through the first transmission shaft 6, the transmission assembly 4 and the second transmission shaft 7.

[0034] The width of the drill bit 2 is larger than the hole diameter on the stainless steel rivet. Therefore, the drill bit 2 can drill holes at the folded edge of the stainless steel rivet and break the folded edge at the stainless steel rivet. The user only needs to pick up the handle to withdraw the tail of the stainless steel rivet from the handle, which facilitates the removal of the kettle handle.

[0035] In summary, the above are only the preferred embodiments of the present invention, and all equivalent changes and modifications made within the scope of the patent application of the present invention shall fall within the scope covered by the present invention.

Claims

1. An eccentric drilling device, comprising a bench drill body (1) and a drill bit (2), characterized in that: The invention also comprises a fixing frame (3), a transmission assembly (4) and a kettle body fixing seat (5) for placing a kettle, wherein the transmission assembly (4) is rotatably arranged in the fixing frame (3), a first transmission shaft (6) is arranged on the bench drill body (1), the first transmission shaft (6) is arranged at one end of the transmission assembly (4), a second transmission shaft (7) is arranged at the other end of the transmission assembly (4), the upper end of the drill bit (2) is arranged on the second transmission shaft (7), and the first transmission shaft (6) and the second transmission shaft (7) are located in different vertical planes; the transmission assembly (4) comprises a transmission belt (41), a deep groove ball bearing (42) and two The invention relates to a plurality of synchronous pulleys (43), wherein the synchronous pulleys (43) are respectively sleeved on the first transmission shaft (6) and the second transmission shaft (7) and are connected to the first transmission shaft (6) and the second transmission shaft (7) respectively; the deep groove ball bearing (42) is sleeved on the first transmission shaft (6) and the second transmission shaft (7), and the deep groove ball bearing (42) is located at both ends of the same synchronous pulley (43); the two ends of the transmission belt (41) are sleeved on the two synchronous pulleys (43), and the first transmission shaft (6) drives the second transmission shaft (7) to rotate through the synchronous pulley (43), the transmission belt (41) and the deep groove ball bearing (42).

2. An eccentric punching device according to claim 1, characterized in that: The kettle body fixing seat (5) is provided with a placement pile (8) for placing the lifting lug, and the placement pile (8) extends in a vertical direction.

3. An eccentric punching device according to claim 2, characterized in that: The placement pile (8) comprises a column (81) and a nut (82); a through hole (51) is provided on the kettle body fixing seat (5); the end of the column (81) passes through the through hole (51) and is threadedly connected to the kettle body fixing seat (5).

4. An eccentric punching device according to claim 1, characterized in that: The upper surface of the kettle body fixing seat (5) is provided with a groove (52) for placing the kettle body therein.

5. An eccentric punching device according to claim 1, characterized in that: The outside of the bench drill body (1) is sleeved with a reinforcing plate (9), the fixing frame (3) is provided with a fixing rod (31), and the end of the fixing rod (31) is arranged on the reinforcing plate (9).

Images