Oil inlet structure of punching machine

Abstract

The invention discloses an oil inlet structure of a punching machine, and relates to the technical field of oil inlet of punching machines. An oil inlet structure of a punching machine comprises a crankshaft, the crankshaft comprises an internal main runner and a plurality of sub-runners communicated with the main runner, and each sub-runner penetrates to the outside of the crankshaft; the crankshaft is provided with a rotating seat, the rotating seat and the crankshaft can rotate simultaneously, the rotating seat is provided with an oil inlet channel, and the oil inlet channel is communicated with the main runner; the rotating seat is further rotationally connected with a fixed seat, an annular cavity communicated with the oil inlet channel is formed between the fixed seat and the rotating seat, and the fixed seat is further provided with an oil inlet communicated with the annular cavity. Lubricating oil can flow in the crankshaft and can be sprayed out from the position of the crankshaft to the direction of a component subsequently.

Description

Technical Field

[0001] The present application relates to the technical field of oil inlet for a punch press, and in particular to an oil inlet structure for a punch press. Background Art

[0002] In the field of mechanical processing, the punch press is an important forming equipment. Its operation stability and reliability directly affect the production efficiency and processing accuracy. The oil supply device of the punch press is a key component to ensure its normal operation. The oil supply device is responsible for providing lubricating oil to the transmission system, lubrication system, etc. of the punch press to reduce friction between components, reduce wear and extend the service life of the equipment.

[0003] Typically, a punch press consists of a frame, a die for forming, and a drive system for providing power. The drive system typically includes a crankshaft for transmitting the power. Existing oil supply systems typically include an oil supply unit and external oil pipes. Since most components requiring lubrication are located near the crankshaft, the oil is primarily distributed near the crankshaft. When the punch press is operating, an oil pump draws lubricating oil from the oil tank, allowing the oil to enter the external pipes. These pipes then spray the oil out to lubricate the components near the crankshaft.

[0004] Sometimes, designers want lubricating oil to flow inside the crankshaft and subsequently be ejected from the crankshaft toward the components. In the above solution, the multiple external pipes not only complicate the overall structure of the press, but also, when the press is not processing (i.e., when the oil pipes are not spraying oil), impurities generated during processing and dirt from the external environment can easily enter the pipes through the pipe openings, causing blockage. The complex pipe layout also creates numerous corners, making cleaning difficult and impacting subsequent processing. Summary of the Invention

[0005] In order to enable the lubricating oil to flow in the crankshaft and subsequently to spray the lubricating oil from the crankshaft position toward the components, the present application provides an oil inlet structure for a punch press.

[0006] The oil inlet structure of a punch press provided in this application adopts the following technical solution: An oil inlet structure for a punch press includes a crankshaft, the crankshaft including an internal main flow channel and a plurality of sub-flow channels connected to the main flow channel, each of the sub-flow channels extending to the exterior of the crankshaft; a rotating seat mounted on the crankshaft and capable of rotating co-rotating with the crankshaft, the rotating seat having an oil inlet channel connected to the main flow channel; a fixed seat rotatably connected to the rotating seat, an annular cavity connected to the oil inlet channel formed between the fixed seat and the rotating seat, and an oil inlet port connected to the annular cavity formed on the fixed seat; The crankshaft includes a sub-shaft 1 and a sub-shaft 2, wherein the sub-shaft 1 and the sub-shaft 2 are detachably connected, the rotating seat is installed on the sub-shaft 1, and the main flow channel extends from the sub-shaft 1 to the sub-shaft 2.

[0007] By adopting the above technical solution, by introducing lubricating oil into the oil inlet, the lubricating oil will subsequently enter the main channel through the annular cavity and the oil inlet channel and then be ejected outward from the sub-channel. When the lathe is working, the crankshaft will rotate and the rotating seat will rotate relative to the fixed seat. At this time, by injecting oil into the oil filling port, it is still possible to achieve stable oil injection into the main channel. Therefore, the present application enables the lubricating oil to flow within the crankshaft and subsequently enables the lubricating oil to be ejected from the crankshaft position toward the component. In addition, even if impurities enter the sub-channel, the crankshaft rotation will to some extent throw the impurities outward.

[0008] Preferably, a bearing and a sealing ring are commonly connected between the rotating seat and the fixed seat. The sealing ring is used to seal the annular cavity, and the bearing is arranged in the annular cavity.

[0009] By adopting the above technical solution, the bearing can facilitate the rotation of the rotating seat relative to the fixed seat. When the oil filling port is filled with oil, the lubricating oil entering the annular cavity will also lubricate the bearing to ensure the rotation ability of the rotating seat, i.e., the crankshaft.

[0010] Preferably, the sub-shaft 1 is provided with a connecting hole 1, the sub-shaft 2 is provided with a connecting hole 2, and the connecting hole 1 and the connecting hole 2 are jointly connected with a fastener 1.

[0011] By adopting the above technical solution, the sub-shaft 1 and the sub-shaft 2 can be disassembled and separated to clean the main flow channel and sub-flow channel inside them respectively.

[0012] Preferably, the fixing seat includes a seat body 1 and a seat body 2, the seat body 1 has a docking hole 1, the seat body 2 has a docking hole 2, and the seat body 1 and the seat body 2 are connected together by a fastener 2; the seat body 2 can be disassembled to expose the annular cavity.

[0013] By adopting the above technical solution, the seat body 1 and the seat body 2 can be disassembled and separated to expose the annular cavity, thereby facilitating cleaning of the annular cavity.

[0014] Preferably, each of the sub-channels is formed with an oil outlet on the outer wall of the crankshaft, and each of the oil outlets is installed with a filter element 1 for blocking impurities from entering the sub-channel, and a filter element 2 for adsorbing impurities is installed at one end of the sub-shaft 1 close to the sub-shaft 2, and a magnetic adsorption device is installed in the annular cavity on the fixed seat.

[0015] By adopting the above technical solution, filter element 1 can block impurities from entering the sub-channel as much as possible, while filter element 2 can adsorb and block impurities carried by the lubricating oil as much as possible. In addition, the magnetic adsorption device can also adsorb ferromagnetic impurities that may flow into the interior.

[0016] Preferably, it also includes a control module, an alarm device, a sensor installed on the main channel and a clearing mechanism installed on the crankshaft, the clearing mechanism can clean the main channel, the control module is connected to both the sensor and the alarm device, the sensor can detect the flow in the main channel, and the control module controls the alarm device to alarm in response to the detection signal of the sensor.

[0017] By adopting the above technical solution, when the main channel is blocked, the sensor will send a signal to the control module, and the control module will control the alarm device to sound an alarm in response to the detection signal of the sensor. After the user knows that the alarm device has sounded an alarm, he will use the clearing mechanism to clean the inside of the main channel.

[0018] Preferably, the blockage clearing mechanism includes a blockage clearing head, an installation channel connected to the main channel is opened in the sub-shaft one, the installation channel is arranged in the same direction as the main channel, and the blockage clearing head is installed in the installation channel; the end of the installation channel away from the main channel penetrates to the external environment, and the end of the blockage clearing head away from the main channel is installed with a multi-stage tube; the blockage clearing head and the sub-shaft one are detachably connected by a pin.

[0019] By adopting the above technical solution, after releasing the locking of the pin, the user can stretch the multi-stage tube to use the clearing head to clear the main channel.

[0020] Preferably, the clearing head includes a plurality of blades away from one end of the sub-shaft.

[0021] By adopting the above technical solution, the blade can break up the solids that may be agglomerated in the main channel and disperse the metal fragments that may be present.

[0022] Preferably, the second filter element comprises a mounting frame and a filter sheet detachably mounted on the mounting frame, and the mounting frame is fixed by being squeezed by the first sub-axis and the second sub-axis.

[0023] By adopting the above technical solution, after the sub-shaft 1 and the sub-shaft 2 are separated, the filter can be disassembled for replacement.

[0024] Preferably, the main flow channel is arranged along the axial direction of the crankshaft, and the sub-flow channel is arranged along the diameter direction of the crankshaft.

[0025] In summary, the present invention includes at least one of the following beneficial technical effects: 1. By introducing lubricating oil into the oil inlet, the oil will subsequently enter the main channel through the annular cavity and the oil inlet channel, and then be ejected outward from the sub-channel. When the lathe is working, the crankshaft will rotate, and the rotating seat will rotate relative to the fixed seat. At this time, by injecting oil into the oil filling port, it is still possible to achieve stable oil injection into the main channel. In addition, even if impurities enter the sub-channel, the crankshaft rotation will to some extent expel the impurities outward. 2. The bearing can facilitate the rotation of the rotating seat relative to the fixed seat. When the oil filling port is filled with oil, the lubricating oil entering the ring cavity will also lubricate the bearing to ensure the rotation ability of the rotating seat, that is, the crankshaft.

[0026] 3. The sub-shaft 1 and the sub-shaft 2 can be disassembled and separated to clean the main flow channel and the sub-flow channel therein respectively; the seat body 1 and the seat body 2 can be disassembled and separated to expose the annular cavity so as to facilitate the cleaning of the annular cavity; even if the main flow channel is blocked without being cleaned in time, the sensor will send a signal to the control module, and the control module will control the alarm device to sound an alarm in response to the detection signal of the sensor. After the user is informed of the alarm device sounding an alarm, he will use the clearing mechanism to clean the inside of the main flow channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of an oil inlet structure of a punch press according to an embodiment of the present application; Figure 2 It is a cross-sectional view used to reflect the oil inlet structure of a punch press; Figure 3 It is a cross-sectional view used to reflect the annular cavity; Figure 4 yes Figure 2 Enlarged view of part A; Figure 5 yes Figure 2 Enlarged view of part B; Figure 6 yes Figure 2 Magnified view of part C.

[0028] Markings in the accompanying drawings: 1. crankshaft; 11. main flow channel; 12. sub-flow channel; 121. oil outlet; 122. filter element 1; 13. filter element 2; 131. mounting frame; 132. filter plate; 14. sub-shaft 1; 141. connecting hole 1; 142. mounting channel; 15. sub-shaft 2; 151. connecting hole 2; 2. rotating seat; 21. oil inlet channel; 3. fixed seat; 31. oil inlet; 32. magnetic adsorption device; 33. seat body 1; 331. docking hole 1; 34. seat body 2; 341. docking hole 2; 4. annular cavity; 41. bearing; 5. sealing ring; 6. sensor; 7. clearing mechanism; 71. clearing head; 711. cylinder; 712. blade; 72. multi-stage tube; 73. pin. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below with reference to the accompanying drawings.

[0030] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0031] The embodiment of the present application discloses an oil inlet structure of a punch press.

[0032] Reference Figure 1 and Figure 2 An oil inlet structure of a punching machine includes a crankshaft 1, which includes an internal main channel 11 and a plurality of sub-channels 12 connected to the main channel 11. The main channel 11 is arranged along the axial direction of the crankshaft 1, and the sub-channels 12 are arranged along the diameter direction of the crankshaft 1. Each sub-channel 12 penetrates to the outside of the crankshaft 1.

[0033] Reference Figure 2 and Figure 3 A rotating seat 2 is installed on the crankshaft 1 and the rotating seat 2 can rotate with the crankshaft 1. The rotating seat 2 is provided with an oil inlet channel 21. The oil inlet channel 21 is arranged along the radial direction of the crankshaft 1, and the oil inlet channel 21 is connected to the main channel 11; the rotating seat 2 is also rotatably connected to the fixed seat 3. During installation, the fixed seat 3 is usually fixedly connected to the frame of the punching machine. An annular cavity 4 connected to the oil inlet channel 21 is formed between the fixed seat 3 and the rotating seat 2, and an oil inlet port 31 connected to the annular cavity 4 is also provided on the fixed seat 3.

[0034] Reference Figure 3 Two bearings 41 and two sealing rings 5 ​​are commonly connected between the rotating seat 2 and the fixed seat 3. The bearing 41 in this embodiment is specifically a thrust ball bearing 41. The two sealing rings 5 ​​are used to seal the annular cavity 4 and are respectively arranged on both sides of the annular cavity 4. The sealing rings 5 ​​are made of PTFE stainless steel. The two bearings 41 are both arranged in the annular cavity 4.

[0035] After the lubricating oil is introduced into the oil inlet 31 , the lubricating oil subsequently enters the main channel 11 through the annular cavity 4 and the oil inlet channel 21 and is subsequently sprayed outwards along the sub-channel 12 to lubricate various components.

[0036] When the lathe is operating, the crankshaft 1 rotates, and the rotating base 2 rotates relative to the fixed base 3. By injecting oil into the oil filling port, the main channel 11 can be stably injected with oil. The oil injection stability is not affected by the operation of the punch press, that is, the rotation of the crankshaft 1. In addition, even if impurities enter the sub-channel 12, the rotation of the crankshaft 1 will to a certain extent throw the impurities outward to prevent the impurities from entering the main channel 11 from the sub-channel 12 and accumulating.

[0037] Reference Figure 4 and Figure 5 In order to further prevent the accumulation of impurities inside the crankshaft 1, each sub-channel 12 is formed with an oil outlet 121 on the outer wall of the crankshaft 1. Each oil outlet 121 is installed with a filter 122 for blocking impurities from entering the sub-channel 12. The filter 122 is, for example, a metal filter. A filter 13 for absorbing impurities in the main channel 11 is installed in the middle of the crankshaft 1. The filter 13 is, for example, a fiber filter. Figure 3 A magnetic attraction device 32 is mounted on the fixing seat 3 within the annular cavity 4. The magnetic attraction device 32 includes a plurality of magnetic sheets distributed around the annular cavity 4 and connected thereto. Specifically, the filter element 13 includes a mounting frame 131 mounted on the crankshaft 1 and a filter sheet 132 detachably mounted on the mounting frame 131. The filter sheet 132 can be snap-fitted to the mounting frame 131 using a conventional snap-fit ​​method.

[0038] Reference Figure 5 When impurities accumulate in the main channel 11, in order to facilitate the cleaning of the main channel 11, the crankshaft 1 includes a sub-shaft 14 and a sub-shaft 15, and the sub-shaft 14 and the sub-shaft 15 are detachably connected. Figure 2 The rotating seat 2 is mounted on the first sub-shaft 14. The main channel 11 extends from the first sub-shaft 14 into the second sub-shaft 15. The mounting frame 131 is fixed by the compression of the first sub-shaft 14 and the second sub-shaft 15. Specifically, the first sub-shaft 14 has a connecting hole 141, and the second sub-shaft 15 has a connecting hole 151. The first connecting hole 141 and the second connecting hole 151 are connected to each other by a fastener 1, such as a screw.

[0039] Reference Figure 3 To facilitate cleaning of annular cavity 4 when impurities accumulate within it, fixed base 3 includes a first base 33 and a second base 34. Base 1 33 defines a first docking hole 331, while base 2 34 defines a second docking hole 341. Both bases 1 33 and 34 are connected by a second fastener, such as a screw. Base 2 34 can be disassembled to expose annular cavity 4. Removing the second fastener to separate base 1 33 and base 2 34 facilitates cleaning of oil inlet 31, oil inlet passage 21, and magnetic attraction device 32.

[0040] Reference Figure 2When the inside of the main channel 11 is not cleaned in time, in order to prevent the main channel 11 from being blocked, an oil inlet structure of a punch press also includes a control module, an alarm device, a sensor 6 installed on the inner wall of the main channel 11 and a clearing mechanism 7 installed on the crankshaft 1. The control module and the alarm device can be installed on the punch press. The control module is connected to the sensor 6 and the alarm device. The sensor 6 is, for example, a flow sensor. The sensor 6 can detect the flow in the main channel 11. The control module can control the alarm device to alarm in response to the detection signal of the sensor 6.

[0041] When the main channel 11 is blocked and the flow rate in the main channel 11 decreases, the sensor 6 will send a signal to the control module. The control module will control the alarm device to sound an alarm in response to the detection signal of the sensor 6. After receiving the alarm, the user uses the clearing mechanism 7 to clean the inside of the main channel 11.

[0042] Reference Figure 6 The clearing mechanism 7 includes a clearing head 71, a sub-axis 14 is provided with a mounting channel 142 connected to the main channel 11, and a Figure 2 The mounting channel 142 is arranged in the same direction as the main channel 11, and the plug cleaning head 71 is installed in the mounting channel 142; the end of the mounting channel 142 away from the main channel 11 extends to the external environment, and the end of the plug cleaning head 71 away from the main channel 11 is installed with a multi-stage tube 72. The multi-stage tube 72 can maintain its shape after being stretched, and can also be pressed and contracted. The specific structure of the multi-stage tube 72 is in the prior art and will not be described here in detail; the plug cleaning head 71 and the sub-shaft 14 are detachably connected by a pin 73. Specifically, the plug cleaning head 71 includes a column 711 for being attached to the mounting channel 142 and a plurality of blades 712 connected to the end of the column 711 away from the sub-shaft 14. The blades 712 can break up any solids that may be agglomerated in the main channel 11 and disperse any metal debris that may be present.

[0043] After releasing the lock of the pin 73 , the user can extend the multi-stage tube 72 and then move the multi-stage tube 72 to drive the clearing head 71 to move to clear the main channel 11 .

[0044] The implementation principle of the oil inlet structure of a punch press in the embodiment of the present application is: regardless of whether the punch press is working or not, that is, whether the crankshaft 1 is rotating or not, after the lubricating oil is introduced into the oil inlet 31, the lubricating oil will subsequently enter the main channel 11 through the annular cavity 4 and the oil inlet channel 21 and will be sprayed outwards along the sub-channel 12 to lubricate various components.

[0045] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. An oil inlet structure for a punch press, characterized by: The invention comprises a crankshaft (1), wherein the crankshaft (1) comprises an internal main flow channel (11) and a plurality of sub-flow channels (12) connected to the main flow channel (11), and each of the sub-flow channels (12) extends to the outside of the crankshaft (1); a rotating seat (2) is mounted on the crankshaft (1), and the rotating seat (2) can rotate with the crankshaft (1); the rotating seat (2) is provided with an oil inlet channel (21), and the oil inlet channel (21) is connected to the main flow channel (11); the rotating seat (2) is also rotatably connected to a fixed seat (3), an annular cavity (4) connected to the oil inlet channel (21) is formed between the fixed seat (3) and the rotating seat (2), and the fixed seat (3) is also provided with an oil inlet port (31) connected to the annular cavity (4); The crankshaft (1) comprises a sub-shaft (14) and a sub-shaft (15), wherein the sub-shaft (14) and the sub-shaft (15) are detachably connected, the rotating seat (2) is mounted on the sub-shaft (14), and the main flow channel (11) extends from the sub-shaft (14) into the sub-shaft (15).

2. The oil inlet structure of a punch press according to claim 1, characterized in that: A bearing (41) and a sealing ring (5) are commonly connected between the rotating seat (2) and the fixed seat (3); the sealing ring (5) is used to seal the annular cavity (4); and the bearing (41) is arranged in the annular cavity (4).

3. The oil inlet structure of a punch press according to claim 1, characterized in that: The sub-shaft 1 (14) is provided with a connecting hole 1 (141), the sub-shaft 2 (15) is provided with a connecting hole 2 (151), and the connecting hole 1 (141) and the connecting hole 2 (151) are connected together with a fastener 1.

4. The oil inlet structure of a punch press according to claim 1, characterized in that: The fixing seat (3) comprises a seat body 1 (33) and a seat body 2 (34); the seat body 1 (33) is provided with a docking hole 1 (331); the seat body 2 (34) is provided with a docking hole 2 (341); the seat body 1 (33) and the seat body 2 (34) are connected together by a fastener 2; the seat body 2 (34) can be disassembled to expose the annular cavity (4).

5. The oil inlet structure of a punch press according to claim 1, characterized in that: Each of the sub-channels (12) is formed with an oil outlet (121) on the outer wall of the crankshaft (1), and each of the oil outlets (121) is installed with a filter element (122) for preventing impurities from entering the sub-channel (12). A filter element (13) for adsorbing impurities is installed at one end of the sub-shaft (14) close to the sub-shaft (15). A magnetic adsorption device (32) is installed on the fixing seat (3) in the annular cavity (4).

6. The oil inlet structure of a punch press according to claim 5, characterized in that: The invention also includes a control module, an alarm device, a sensor (6) installed on the main flow channel (11), and a clearing mechanism (7) installed on the crankshaft (1), wherein the clearing mechanism (7) is capable of clearing the main flow channel (11), the control module is connected to both the sensor (6) and the alarm device, the sensor (6) is capable of detecting the flow rate in the main flow channel (11), and the control module controls the alarm device to sound an alarm in response to a detection signal from the sensor (6).

7. The oil inlet structure of a punch press according to claim 6, characterized in that: The blockage clearing mechanism (7) comprises a blockage clearing head (71); a mounting channel (142) communicating with the main channel (11) is provided in the sub-shaft (14); the mounting channel (142) and the main channel (11) are arranged in the same direction; the blockage clearing head (71) is installed in the mounting channel (142); one end of the mounting channel (142) away from the main channel (11) penetrates to the external environment; the end of the blockage clearing head (71) away from the main channel (11) is installed with a multi-stage tube (72); the blockage clearing head (71) and the sub-shaft (14) are detachably connected by a pin (73).

8. The oil inlet structure of a punch press according to claim 7, characterized in that: The clearing head (71) includes a plurality of blades (712) located away from one end of the sub-shaft (14).

9. The oil inlet structure of a punch press according to claim 5, characterized in that: The second filter element (13) comprises a mounting frame (131) and a filter sheet (132) detachably mounted on the mounting frame (131); the mounting frame (132) is fixed by being squeezed by the first sub-axis (14) and the second sub-axis (15).

10. The oil inlet structure of a punch press according to claim 1, characterized in that: The main flow channel (11) is arranged along the axial direction of the crankshaft (1), and the sub-flow channel (12) is arranged along the diameter direction of the crankshaft (1).

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