Electromagnetic striking special machine tool five-axis head
Through the design of the five-axis head of the electromagnetic striking special machine tool, combined with computer scanning and automatic adjustment, the problem that CNC machine tools are difficult to process difficult-to-process metal materials has been solved, and efficient and accurate workpiece processing has been achieved.
Patent Information
- Application Number
- CN202311459781.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-03
- Publication Date
- 2025-10-14
- Estimated Expiration
- 2043-11-03
AI Technical Summary
Common CNC machine tools cannot efficiently process difficult-to-process metal workpieces, and manual hammering is time-consuming, labor-intensive, and prone to deviations.
It uses a five-axis head specially designed for electromagnetic striking, combined with a pulse head, A-axis rotation assembly and C-axis rotation assembly. Through computer scanning and automatic adjustment of the pulse head position, it replaces manual striking to achieve precise processing.
The processing efficiency and quality of the workpiece are improved, the processing deviation is reduced, and the loss of the drive unit is reduced.
Smart Images

Figure CN117260298B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of numerical control machine tools, in particular to a five-axis head special for electromagnetic striking machine tools. BACKGROUND
[0002] In the machining of titanium and other difficult-to-machine metal materials used in the aviation field and some metal material workpieces in other fields, general numerical control machine tools cannot mill the relevant shapes and textures. The common method is to place the workpiece to be machined on a mold and deform the workpiece to be machined by manual striking to make the workpiece conform to the mold, thereby producing a workpiece with a shape and texture that meets the requirements.
[0003] According to the related art, the manual striking machining method is time-consuming and labor-intensive, and the finished workpiece is prone to large deviations. SUMMARY
[0004] In order to improve the machining efficiency and machining quality of the workpiece, the present application provides a five-axis head special for electromagnetic striking machine tools.
[0005] The five-axis head special for electromagnetic striking machine tools provided by the present application adopts the following technical solution:
[0006] A five-axis head special for electromagnetic striking machine tools, comprising a pulse head, an A-axis rotating assembly and a C-axis rotating assembly, the C-axis rotating assembly is arranged on a machine tool, the A-axis rotating assembly is connected with the C-axis rotating assembly, the pulse head is connected with the A-axis rotating assembly, the C-axis rotating assembly drives the A-axis rotating assembly and the pulse head to revolve around the Z-axis, and the A-axis rotating assembly drives the pulse head to revolve around the X-axis.
[0007] By adopting the above technical solution, when machining the workpiece, the mold is placed below the pulse head, the workpiece to be machined is placed on the mold, the pulse head impacts the workpiece to make the workpiece conform to the mold, then the computer scans the surface of the workpiece to observe whether there are parts that are not completely machined, the position of the pulse head is adjusted by the C-axis rotating assembly in cooperation with the A-axis rotating assembly, then the pulse head impacts the workpiece again, replacing the traditional manual striking machining method, cooperating with the scanning of the computer, the pulse head can repeatedly machine the parts that are not machined in place, improving the machining efficiency and machining quality of the workpiece.
[0008] Optionally, the A-axis rotating assembly comprises an A-axis fixing seat, the C-axis rotating assembly is connected with the A-axis fixing seat, a first rotating shaft is rotationally connected in the A-axis fixing seat, the first rotating shaft is parallel to the X-axis, a first driving unit for driving the first rotating shaft to rotate is arranged in the A-axis fixing seat, the first rotating shaft is connected with a buffer, the buffer is connected with the pulse head, and the buffer is used for buffering the reaction force of the pulse head on the first rotating shaft, and a first brake for preventing the first rotating shaft from swinging during machining is arranged in the A-axis fixing seat.
[0009] By adopting the above technical scheme, the first driving unit drives the first rotating shaft to rotate, the first rotating shaft drives the buffer to overturn, so that the pulse head is turned around the X-axis, and because the pulse head generates a reaction force on the first rotating shaft after each time of hitting the workpiece, the buffer offsets the action force, reduces the case that the reaction force directly acts on the first rotating shaft to cause the first rotating shaft to deform, the first brake locks the first rotating shaft during machining to avoid the case that the first rotating shaft deflects when hitting, and simultaneously replaces the self-locking function of the first driving unit to reduce the loss of the motor and other components in the first driving unit.
[0010] Optionally, the buffer comprises a connecting shell connected with the first rotating shaft, a piston is slidably arranged in the connecting shell, the piston is connected with the pulse head, a buffer front cover and a buffer rear cover are fixedly connected in the connecting shell, the buffer front cover is arranged at an end of the piston away from the pulse head, the piston is located between the buffer front cover and the buffer rear cover, and an end of the piston connected with the pulse head extends out of the buffer rear cover, and the connecting shell, the buffer front cover and the piston collectively surround a first hydraulic cavity.
[0011] By adopting the above technical scheme, before the pulse head hits, corresponding hydraulic oil is injected into the first hydraulic cavity according to the hitting force of the pulse head, after the pulse head hits, the reaction force of the workpiece causes the pulse head and the piston to retract, the retraction of the piston causes the first hydraulic cavity to shrink, part of the hydraulic oil flows back, the reaction force and the oil pressure are offset, and the buffer effect on the hitting of the pulse head is realized.
[0012] Optionally, a plurality of guide grooves are formed in the side wall of the connecting shell along the length direction of the connecting shell, a plurality of guide columns are arranged on the buffer rear cover, the guide columns correspond to the guide grooves one by one, and the guide columns extend into the guide grooves.
[0013] By adopting the above technical scheme, the guide columns play a guiding role, so that the piston can smoothly move along the axial direction of the connecting shell when buffering, and the case that the piston deviates and deforms is reduced.
[0014] Optionally, the piston is connected with a transition plate for connecting with various types of the pulse head at one end close to the pulse head, and the piston is tightly fixed with a first sealing ring between the buffer front cover and the buffer rear cover.
[0015] Optionally, the buffer rear cover is provided with a limiting block, and when the first hydraulic cavity increases in hydraulic pressure, the piston is away from one end between the buffer front cover and the buffer rear cover and abuts against the limiting block.
[0016] By using the above technical scheme, the hydraulic oil is injected into the first hydraulic cavity, the hydraulic oil pushes the piston to abut against the limiting block, when the hydraulic oil continues to be injected into the first hydraulic cavity, the hydraulic pressure in the first hydraulic cavity begins to increase, the limiting block limits the movement distance of the piston, and the first hydraulic cavity can be rapidly pressurized.
[0017] Optionally, the first brake piece includes a first outer disc fixed in the A-axis fixing seat, the first outer disc is an annular disc, a first brake pad is coaxially fixed on the first rotating shaft, the first brake pad is rotationally connected with the first outer disc and coaxially arranged, a second hydraulic cavity is formed in the first outer disc, and a first expansion part is arranged in the second hydraulic cavity. When the rotation of the first rotating shaft is limited, the first hydraulic cavity is pressurized to deform the first expansion part to abut against the first brake pad, and the first brake pad abuts against the first outer disc to limit the rotation of the first brake pad.
[0018] By using the above technical scheme, when the rotation of the first rotating shaft is limited, the oil pressure is injected into the second hydraulic cavity, and as the pressure of the second hydraulic cavity increases, the first expansion part abuts against the first brake pad to limit the relative rotation of the first brake pad and the first outer disc, thereby limiting the rotation of the first rotating shaft.
[0019] Optionally, the A-axis fixing seat is a concave seat, the buffer piece is located between the two side walls of the A-axis fixing seat, and left and right mounting cavities are respectively formed in the two sides of the A-axis fixing seat.
[0020] The first rotating shaft includes a left rotating shaft and a right rotating shaft, the first driving unit is installed in the left mounting cavity, the first driving unit is connected with the left rotating shaft, the right rotating shaft is rotationally arranged in the right mounting cavity, and the left rotating shaft and the right rotating shaft are both connected with the connecting shell.
[0021] By using the above technical scheme, the left rotating shaft and the right rotating shaft are connected on each side of the connecting shell, the length of the rotating shaft is shortened, the deformation of the rotating shaft is further reduced, and when installed, the first driving unit, the left rotating shaft, the connecting shell and the right rotating shaft are sequentially installed from left to right, so that the assembly is facilitated and rapid.
[0022] Optionally, the C-axis rotating assembly comprises a C-axis fixing seat connected with the machine tool, a second rotating shaft is rotatably connected in the C-axis fixing seat, the second rotating shaft is connected with the A-axis rotating assembly, a second driving unit for driving the second rotating shaft to rotate is arranged in the C-axis fixing seat, and a second brake for preventing the second rotating shaft from rotating during machining is arranged in the C-axis fixing seat
[0023] By adopting the above technical scheme, the second driving unit drives the second rotating shaft to rotate, and the second rotating shaft drives the A-axis fixing seat to rotate, so that the pulse head can rotate around the Z-axis. During machining, the second brake clamps the second rotating shaft to avoid the deflection of the second rotating shaft caused by the impact of the pulse head, thereby avoiding the inaccuracy of machining. At the same time, the second brake replaces the self-locking function of the second driving unit, thereby reducing the wear of the motor and other components in the second driving unit.
[0024] Optionally, the second brake comprises a second outer disc fixed in the C-axis fixing seat, the second outer disc is an annular disc, a second brake pad is coaxially fixed on the second rotating shaft, the second brake pad is rotatably connected with the second outer disc and coaxially arranged, a third hydraulic cavity is formed in the second outer disc, a second expansion part is arranged in the third hydraulic cavity, and the second expansion part is deformed to tightly abut against the second brake pad by pressurizing the third hydraulic cavity when the rotation of the second rotating shaft is limited. The second brake pad is tightly abutted against the second outer disc, thereby limiting the rotation of the second brake pad
[0025] By adopting the above technical scheme, when the rotation of the second rotating shaft is limited, oil pressure is injected into the third hydraulic cavity. With the increase of the pressure of the third hydraulic cavity, the second expansion part tightly abuts against the second brake pad, thereby limiting the relative rotation of the second brake pad and the second outer disc, and the rotation of the second rotating shaft is limited.
[0026] In summary, the present application has at least one of the following beneficial technical effects:
[0027] 1. When machining a workpiece, a mold is placed below the pulse head, and the workpiece to be machined is placed on the mold. The pulse head impacts the workpiece to make the workpiece fit the mold. Then the computer scans the surface of the workpiece to observe whether there are parts that are not completely machined. The position of the pulse head is adjusted by the C-axis rotating assembly and the A-axis rotating assembly. Then the pulse head impacts the workpiece again. This replaces the traditional manual impact machining method. Combined with the scanning of the computer, the pulse head can repeatedly machine the parts that are not machined in place, thereby improving the machining efficiency and quality of the workpiece.
[0028] 2. The first driving unit drives the first rotating shaft to rotate, and the first rotating shaft drives the buffer to overturn, so that the pulse head is overturned around the X axis. After the pulse head hits the workpiece each time, the buffer offsets the reaction force generated by the first rotating shaft, reduces the deformation of the first rotating shaft caused by the direct action of the reaction force on the first rotating shaft, and locks the first rotating shaft during machining to avoid deflection of the first rotating shaft during hitting. At the same time, the self-locking function of the first driving unit is replaced, and the wear of the motor and other components in the first driving unit is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0029] Figure 1 is a schematic diagram of the overall structure of the embodiment of the application.
[0030] Figure 2 is a schematic diagram of the structure of the A-axis rotating assembly, the buffer and the C-axis rotating assembly.
[0031] Reference signs: 1, pulse head; 2, A-axis rotating assembly; 21, A-axis fixed seat; 22, first rotating shaft; 221, left rotating shaft; 222, right rotating shaft; 23, left mounting chamber; 24, right mounting chamber; 25, A-axis rear cover; 26, first driving unit; 261, first driving motor; 262, first speed reducer; 27, first brake piece; 271, first outer disc; 272, first brake pad; 273, first hydraulic cavity; 274, first expansion part; 28, left sealing cover; 281, left sealing ring; 29, right sealing cover; 210, right sealing ring; 3, C-axis rotating assembly; 31, C-axis fixed seat; 32, second driving unit; 321, second driving motor; 322, second speed reducer; 33, second rotating shaft; 34, second brake piece; 341, second outer disc; 342, second brake pad; 343, third hydraulic cavity; 344, second expansion part; 35, C-axis sealing plate; 36, C-axis sealing ring; 37, C-axis sealing sleeve; 4, buffer; 41, connecting shell; 411, guide groove; 42, piston; 43, buffer front cover; 44, buffer rear cover; 45, first hydraulic cavity; 46, limiting block; 47, guide column; 48, transition plate; 49, first sealing ring. DETAILED DESCRIPTION
[0032] The following will be described in detail in combination with the accompanying drawings. Figures 1-2 The application will be further described in detail.
[0033] The embodiment of the application discloses a five-axis head of an electromagnetic striking special machine tool.
[0034] As Figure 1 and Figure 2The five-axis head of the electromagnetic striking special machine tool includes a pulse head 1, an A-axis rotation component 2 and a C-axis rotation component 3. The C-axis rotation component 3 is installed on the machine tool. The A-axis rotation component 2 is connected to the C-axis rotation component 3, and the pulse head 1 is connected to the A-axis rotation component 2. The C-axis rotation component 3 drives the A-axis rotation component 2 and the pulse head 1 to rotate around the Z axis, and the A-axis rotation component 2 drives the pulse head 1 to rotate around the X axis.
[0035] When processing a workpiece, the mold is placed under the pulse head 1, and the workpiece to be processed is placed on the mold. The pulse head 1 impacts the workpiece to make the workpiece fit the mold. Then the computer scans the surface of the workpiece to observe whether there are any incompletely processed parts. The position of the pulse head 1 is adjusted by the C-axis rotation component 3 and the A-axis rotation component 2. Then the pulse head 1 impacts the workpiece again, replacing the traditional manual striking processing method. In conjunction with the computer scanning, the pulse head 1 can repeatedly process the incompletely processed parts, thereby improving the processing efficiency and quality of the workpiece.
[0036] like Figure 2 The A-axis rotation assembly 2 includes an A-axis fixed seat 21, and the C-axis rotation assembly 3 is connected to the A-axis fixed seat 21. A first rotating shaft 22 is rotatably connected in the A-axis fixed seat 21. The first rotating shaft 22 includes a left rotating shaft 221 and a right rotating shaft 222. The longitudinal cross-section of the A-axis fixed seat 21 is concave. A left installation chamber 23 and a right installation chamber 24 are provided in the A-axis fixed seat 21. The left installation chamber 23 is located in the left shell of the A-axis fixed seat 21, and the right installation chamber 24 is located in the right shell of the A-axis fixed seat 21. Both sides of the A-axis fixed seat 21 are bolted with an A-axis rear cover 25. The left A-axis rear cover 25 cooperates with the A-axis fixed seat 21 to close the left side of the left installation chamber 23, and the right A-axis rear cover 25 cooperates with the A-axis fixed seat 21 to close the right side of the right installation chamber 24.
[0037] The first drive unit 26 is installed in the left installation chamber 23. The first drive unit 26 includes a first drive motor 261 and a first reducer 262. The first drive motor 261 is fixed on the A-axis rear cover 25. The first reducer 262 is located in the left installation chamber 23 and is bolted to the A-axis fixing seat 21. The first reducer 262 is connected to the left rotating shaft 221. The left rotating shaft 221 is coaxially sleeved with a bearing, and the bearing is tightly fitted with the left rotating shaft 221.
[0038] A first brake component 27 for locking the left rotating shaft 221 is fixed in the left installation chamber 23. A left sealing cover 28 and a left sealing ring 281 are coaxially sleeved on the left rotating shaft 221. The A-axis left sealing cover 28, the A-axis left sealing ring 281 and the A-axis rear cover 25 cooperate to seal the left installation chamber 23.
[0039] The end of the left rotating shaft 221 extends out of the left mounting chamber 23 and is connected to the buffer member 4 .
[0040] The right rotating shaft 222 is rotatably connected in the right mounting chamber 24, the right rotating shaft 222 is coaxially sleeved with a bearing, the bearing is tightly fitted with the right rotating shaft 222, the right rotating shaft 222 is bolted with the right sealing cover 29 at an end away from the left rotating shaft 221, the first brake 27 is also mounted in the right mounting chamber 24, the first brake 27 is connected with the right sealing cover 29, the first brake 27 of the right mounting chamber 24 clamps the right sealing cover 29 so as to clamp the right rotating shaft 222, the right rotating shaft 222 is sleeved with the right sealing ring 210 at an end close to the left rotating shaft 221, the right sealing ring 210 and the A shaft rear cover 25 cooperate to close the right mounting chamber 24.
[0041] The right rotating shaft 222 is sleeved with the right sealing ring 210 at an end close to the left rotating shaft 221, the right sealing ring 210 and the A shaft rear cover 25 cooperate to close the right mounting chamber 24.
[0042] As Figure 2 , the buffer 4 comprises a connecting shell 41 connected with the left rotating shaft 221 and the right rotating shaft 222, a piston 42 is slidably arranged in the connecting shell 41, the longitudinal section of the piston 42 is in the shape of an I-beam, a buffer front cover 43 and a buffer rear cover 44 are bolted in the connecting shell 41, one end of the piston 42 is located in a space surrounded by the connecting shell 41, the buffer front cover 43 and the buffer rear cover 44, the other end of the piston 42 extends out of the buffer rear cover 44 and the connecting shell 41, the buffer front cover 43, the connecting shell 41 and the one end of the piston 42 located in the connecting shell 41 jointly surround a first hydraulic cavity 45, the buffer rear cover 44 is provided with a plurality of limiting blocks 46 toward the one end of the connecting shell 41, when the piston 42 is pressurized, the one end of the piston 42 located in the connecting shell 41 tightly abuts against the plurality of limiting blocks 46. The one end of the piston 42 extending out of the connecting shell 41 is bolted with a plurality of guide columns 47, the connecting shell 41 is provided with a plurality of guide grooves 411 corresponding to the guide columns 47 in the length direction, the guide columns 47 are inserted into the guide grooves 411, the one end of the piston 42 extending out of the connecting shell 41 is connected with a transition plate 48, the transition plate 48 is connected with the pulse head 1, the transition plate 48 is designed to match the pulse head 1 according to the number and specifications of the pulse head 1. The piston 42 located between the buffer front cover 43 and the buffer rear cover 44 is sleeved and tightly fastened with two first sealing rings 49.
[0043] As Figure 2The first brake component 27 includes a first outer disc 271. The first outer discs 271 in both the left and right mounting chambers 23 and 24 are bolted to the A-axis mounting base 21. The first outer discs 271 are annular, and the left rotating shaft 221 passes through the corresponding first outer discs 271. A first brake pad 272 is coaxially mounted on the left rotating shaft 221 and bolted to the left rotating shaft 221. The first brake pad 272 is sleeved within the first outer disc 271 and slidably connected thereto. The first brake pad 272 in the right mounting chamber 24 is bolted to the right sealing cover 29. A second annular hydraulic cavity 273 is defined within the first outer disc 271. A first expansion portion 274 is mounted within the second hydraulic cavity 273. The first expansion portion 274 is annular and sleeves over the first brake pad 272.
[0044] like Figure 2 The C-axis rotation assembly 3 includes a C-axis fixed seat 31, which is connected to the machine tool. A second drive unit 32 is fixed in the C-axis fixed seat 31. The second drive unit 32 includes a second drive motor 321 and a second reducer 322. The second drive motor 321 is fixed to the C-axis fixed seat 31, and the second reducer 322 is connected to the second rotating shaft 33. The second rotating shaft 33 is tightly fitted with a bearing. A second brake member 34 for locking the second rotating shaft 33 is provided in the C-axis fixed seat 31. The second rotating shaft 33 is bolted to the A-axis fixed seat 21. A C-axis sealing plate 35 is provided at one end of the second rotating shaft 33 close to the A-axis fixed seat 21. The C-axis sealing plate 35 is bolted to the C-axis fixed seat 31. A C-axis sealing ring 36 is provided on the C-axis sealing plate 35. A C-axis sealing sleeve 37 for fixing the C-axis sealing ring 36 is bolted to the C-axis sealing plate 35.
[0045] like Figure 2 The second brake member 34 includes a second outer disk 341, which is bolted to the C-axis fixing seat 31, and the second outer disk 341 is sleeved on the second rotating shaft 33 and coaxially arranged. The second rotating shaft 33 is sleeved with a second brake pad 342, and the second brake pad 342 is bolted to the second rotating shaft 33. The second brake pad 342 is sleeved in the second outer disk 341, and the second brake pad 342 is rotatably connected to the second outer disk 341. A third hydraulic cavity 343 is opened in the second outer disk 341, and the third hydraulic cavity 343 is an annular cavity. A second expansion part 344 is installed in the third hydraulic cavity 343, and the second expansion part 344 is annular and sleeved on the second brake pad 342.
[0046] Before machining, the second drive motor 321 cooperates with the second reducer 322 to drive the second rotating shaft 33 to rotate, the second rotating shaft 33 drives the A-axis fixing base 21 to rotate, the A-axis fixing base 21 drives the left rotating shaft 221 and the right rotating shaft 222 to rotate, and the left rotating shaft 221 and the right rotating shaft 222 drive the connecting shell 41 to rotate, so that the pulse head 1 rotates around the Z axis to adjust the position;
[0047] Then the first drive motor 261 cooperates with the first reducer 262 to drive the left rotating shaft 221 to rotate, and the left rotating shaft 221 cooperates with the right rotating shaft 222 to drive the connecting shell 41 to flip around the X-axis, and the connecting shell 41 drives the piston 42 and the transition plate 48 to flip, so that the pulse head 1 rotates around the X-axis to adjust the position.
[0048] When the pulse head 1 rotates to the required angle, oil pressure is injected into the second hydraulic cavity 273. As the pressure in the second hydraulic cavity 273 increases, the first expansion portion 274 presses against the first brake pad 272, limiting the relative rotation between the first brake pad 272 and the first outer disk 271, thereby limiting the rotation of the first rotating shaft 22, preventing the first rotating shaft 22 from deflecting during the workpiece processing, and at the same time replacing the self-locking function of the first drive motor 261, reducing the loss of components such as the first drive motor 261.
[0049] Oil pressure is injected into the third hydraulic cavity 343. As the pressure of the third hydraulic cavity 343 increases, the second expansion portion 344 presses against the second brake pad 342, limiting the relative rotation between the second brake pad 342 and the second outer disk 341, thereby limiting the rotation of the second rotating shaft 33, avoiding the deflection of the second rotating shaft 33 during the workpiece processing, and at the same time replacing the self-locking function of the second drive motor 321, reducing the loss of components such as the second drive motor 321.
[0050] Then, according to the impact force of the pulse head 1, corresponding hydraulic oil is injected into the first hydraulic cavity 45 to increase pressure. The hydraulic oil pushes the piston 42 to abut against the limit block 46. When the hydraulic oil continues to be injected into the first hydraulic cavity 45, the hydraulic pressure in the first hydraulic cavity 45 begins to increase. When the pressure reaches the required hydraulic pressure, the pressurization is stopped.
[0051] In the process of workpiece processing, the pulse head 1 impacts the workpiece, so that the workpiece is processed and formed by being attached to the inner film of the mold. In the process of impact, the pulse head 1 is subjected to the reaction force of the workpiece. The reaction force of the workpiece makes the pulse head 1 and the piston 42 retract. The retraction of the piston 42 makes the first hydraulic cavity 45 shrink, and part of the hydraulic oil flows back, so that the reaction force and the oil pressure cancel each other out, achieving the buffering effect of the impact on the pulse head 1, thereby avoiding the case that the reaction force directly acts on the first rotating shaft 22 to cause the first rotating shaft 22 to deform. The guide column 47 plays a guiding role, so that the piston 42 can smoothly move along the axis direction of the connecting shell 41 when retracting, reducing the deformation of the piston 42.
[0052] In the processing process, the first brake pad 272 clamps the left rotating shaft 221 and the right rotating shaft 222, and the second brake pad 342 clamps the second rotating shaft 33, so as to limit the rotation of the pulse head 1 and reduce the deviation in the processing process.
[0053] The principle of the embodiment of the present application is as follows: when the workpiece is processed, the mold is placed below the pulse head 1, and the workpiece to be processed is placed on the mold. The pulse head 1 impacts the workpiece to be processed, so that the workpiece is attached to the mold. Then the computer scans the surface of the workpiece to observe whether there is a part that is not completely processed. The position of the pulse head 1 is adjusted by the C-axis rotating assembly 3 cooperating with the A-axis rotating assembly 2. Then the pulse head 1 impacts and processes the workpiece again, replacing the traditional manual processing method. In cooperation with the scanning of the computer, the pulse head 1 can repeatedly process the parts that are not processed in place, thereby improving the processing efficiency and processing quality of the workpiece.
[0054] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made on the basis of the structure, shape and principle of the present application should be covered within the protection scope of the present application.
Claims
1. A five-axis head for electromagnetic striking machine tools, characterized by: The machine comprises a pulse head (1), an A-axis rotating assembly (2) and a C-axis rotating assembly (3), wherein the C-axis rotating assembly (3) is arranged on a machine tool, the A-axis rotating assembly (2) is connected to the C-axis rotating assembly (3), the pulse head (1) is connected to the A-axis rotating assembly (2), the C-axis rotating assembly (3) drives the A-axis rotating assembly (2) and the pulse head (1) to rotate around the Z-axis, and the A-axis rotating assembly (2) drives the pulse head (1) to rotate around the X-axis; The A-axis rotation assembly (2) includes an A-axis fixed seat (21), the C-axis rotation assembly (3) is connected to the A-axis fixed seat (21), a first rotation axis (22) is rotatably connected in the A-axis fixed seat (21), the first rotation axis (22) is parallel to the X-axis, a first driving unit (26) for driving the first rotation axis (22) to rotate is provided in the A-axis fixed seat (21), the first rotation axis (22) is connected to a buffer (4), the buffer (4) is connected to the pulse head (1), the buffer (4) is used to buffer the reaction force of the pulse head (1) on the first rotation axis (22) during processing, and a first brake (27) is provided in the A-axis fixed seat (21) for preventing the first rotation axis (22) from swinging during processing; The buffer member (4) includes a connecting shell (41), the connecting shell (41) is connected to the first rotating shaft (22), a piston (42) is slidably arranged in the connecting shell (41), the piston (42) is connected to the pulse head (1), a buffer front cover (43) and a buffer rear cover (44) are fixedly connected in the connecting shell (41), the buffer front cover (43) is arranged at one end of the piston (42) away from the pulse head (1), the piston (42) is located between the buffer front cover (43) and the buffer rear cover (44), and the end of the piston (42) connected to the pulse head (1) extends out of the buffer rear cover (44), and the connecting shell (41), the buffer front cover (43) and the piston (42) are jointly surrounded by a first hydraulic cavity (45).
2. The five-axis head for electromagnetic striking machine tool according to claim 1, characterized in that: The side wall of the connecting shell (41) is provided with a plurality of guide grooves (411) along its length direction, and the buffer rear cover (44) is provided with a plurality of guide posts (47), the guide posts (47) corresponding to the guide grooves (411) one by one, and the guide posts (47) extend into the guide grooves (411).
3. The five-axis head for electromagnetic striking machine tool according to claim 1, characterized in that: The piston (42) is connected to one end thereof close to the pulse head (1) with a transition plate (48) for connecting with various types of pulse heads (1). The piston (42) is fastened with a first sealing ring (49), which is located between the buffer front cover (43) and the buffer rear cover (44).
4. The five-axis head for electromagnetic striking machine tool according to claim 1, characterized in that: The buffer rear cover (44) is provided with a limit block (46). When the hydraulic pressure of the first hydraulic cavity (45) increases, the piston (42) moves away from one end located between the buffer front cover (43) and the buffer rear cover (44) and abuts against the limit block (46).
5. The five-axis head for electromagnetic striking machine tool according to claim 1, characterized in that: The first brake member (27) includes a first outer disc (271), which is fixed in the A-axis fixing seat (21). The first outer disc (271) is an annular disc. The first rotating shaft (22) is coaxially fixed with a first brake pad (272). The first brake pad (272) is rotatably connected to the first outer disc (271) and is coaxially arranged. A second hydraulic cavity (273) is provided in the first outer disc (271), and a first expansion portion (274) is provided in the second hydraulic cavity (273). When limiting the rotation of the first rotating shaft (22), the first hydraulic cavity (45) is pressurized to cause the first expansion portion (274) to deform and press against the first brake pad (272). The first brake pad (272) presses against the first outer disc (271) to limit the rotation of the first brake pad (272).
6. The five-axis head for electromagnetic striking machine tool according to claim 5, characterized in that: The A-axis fixing seat (21) is a concave seat, the buffer member (4) is located between the two side walls of the A-axis fixing seat (21), and a left installation chamber (23) and a right installation chamber (24) are respectively provided on both sides of the A-axis fixing seat (21); The first rotating shaft (22) includes a left rotating shaft (221) and a right rotating shaft (222); the first driving unit (26) is installed in the left installation chamber (23); the first driving unit (26) is connected to the left rotating shaft (221); the right rotating shaft (222) is rotatably arranged in the right installation chamber (24); and the left rotating shaft (221) and the right rotating shaft (222) are both connected to the connecting shell (41).
7. The five-axis head for electromagnetic striking machine tool according to claim 1, characterized in that: The C-axis rotation assembly (3) includes a C-axis fixed seat (31), the C-axis fixed seat (31) is connected to the machine tool, a second rotation shaft (33) is rotatably connected in the C-axis fixed seat (31), the second rotation shaft (33) is connected to the A-axis rotation assembly (2), a second driving unit (32) for driving the second rotation shaft (33) to rotate is provided in the C-axis fixed seat (31), and a second brake member (34) is provided in the C-axis fixed seat (31) for preventing the second rotation shaft (33) from rotating during the machining process.
8. The five-axis head for electromagnetic striking machine tool according to claim 7, characterized in that: The second brake member (34) includes a second outer disk (341), which is fixed in the C-axis fixing seat (31). The second outer disk (341) is an annular disk. The second rotating shaft (33) is coaxially fixed with a second brake pad (342). The second brake pad (342) is rotatably connected to the second outer disk (341) and is coaxially arranged. A third hydraulic cavity (343) is provided in the second outer disk (341). A second expansion portion (344) is provided in the third hydraulic cavity (343). When the second rotating shaft (33) is restricted from rotating, the third hydraulic cavity (343) is pressurized to deform the second expansion portion (344) and press against the second brake pad (342). The second brake pad (342) presses against the second outer disk (341) to restrict the rotation of the second brake pad (342).
Citation Information
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