A combined machining device for machining a crankcase

Abstract

This invention discloses a combined processing device for crankcase processing in the field of crankcase processing technology. It includes a main mounting frame, with an upper fixing plate fixedly mounted on the upper end of the main mounting frame. A mounting chamber is fixedly mounted between the upper fixing plates, and a connecting column is rotatably mounted inside the mounting chamber. The upper end of the connecting column extends above the mounting chamber and is fixedly mounted with multiple sets of upper mounting plates. The upper mounting plates are rotatably mounted on the upper surface of the mounting chamber, and each plate is equipped with processing equipment. An operating table is fixedly mounted on one side of the upper fixing plate, and a clamping device is slidably mounted on the operating table. The clamping device can fix the crankcase in its middle position. Through slots are provided at the end of the mounting chamber near the operating table and at the original end of the operating table. This invention provides a single feeding device that works in conjunction with multiple sets of processing equipment, reducing the movement of the crankcase during processing, increasing the processing efficiency of the device, and reducing the amount of machinery required for crankcase processing, thereby reducing processing costs.

Description

Technical Field

[0001] This invention relates to the field of crankcase machining technology, specifically to a combined machining equipment for crankcase machining. Background Technology

[0002] The part at the bottom of the cylinder block where the crankshaft is installed is called the crankcase, which is divided into the upper crankcase and the lower crankcase.

[0003] The crankcase has many parts, and the processing steps are complicated, requiring a variety of processing equipment and different operations. In actual processing, it is necessary to constantly change processing equipment and tools. Each time the equipment is changed, the crankcase needs to be re-clamped and positioned, which is time-consuming and tedious. Especially in the final assembly stage, the processing equipment and the parts to be assembled need to work together. Not only is it necessary to position and clamp the crankcase body, but it is also necessary to cooperate with the corresponding parts feeding equipment. Each set of processing equipment needs to be equipped with feeding equipment, which makes the number of processing equipment required for the crankcase large, thus increasing the processing cost. Summary of the Invention

[0004] The technical problem of the present invention is to provide a combined processing equipment for crankcase machining, which provides a single feeding device that works in conjunction with multiple processing devices, reduces the movement of the crankcase during processing, increases the processing efficiency of the device, reduces the number of instruments required for crankcase machining, and thus reduces processing costs.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a combined machining equipment for crankcase machining, comprising a main mounting frame, an upper fixing plate fixedly mounted on the upper end of the main mounting frame, a mounting chamber fixedly mounted between the upper fixing plates, a connecting column rotatably mounted inside the mounting chamber, the upper end of the connecting column extending above the mounting chamber and fixedly mounted with multiple sets of upper mounting plates, the upper mounting plates being rotatably mounted on the upper surface of the mounting chamber and each plate having machining equipment mounted thereon, an operating table fixedly mounted on one side of the upper fixing plate, and a clamping device slidably mounted on the operating table. The clamping device can be fixed in the middle position by the crankcase. The mounting chamber has through slots at one end near the operating table and the original operating table. A limiting guide rail is fixedly installed in the mounting chamber. The two ends of the limiting guide rail extend from the through slot to the outside of the mounting chamber. A shifting device is fixed on the connecting column. The shifting device can accurately drive the connecting column to rotate at a fixed angle to quickly change the processing equipment near the operating table. A transmission component is provided between the limiting guide rail and the connecting column. The transmission component can automatically take out the part to be assembled from the mounting chamber while the connecting column rotates to change the processing equipment.

[0006] As a further embodiment of the present invention, the switching device includes a side mounting bracket, which is fixedly mounted on the side of the main mounting bracket near the operating table. A drive gear is rotatably mounted on the upper end of the side mounting bracket, and a limit gear is rotatably mounted on the side of the side mounting bracket corresponding to the drive gear. The limit gear meshes with the drive gear. A lower drive disc is fixedly mounted on the lower surface of the limit gear, and a notched disc is fixedly mounted on the lower surface of the lower drive disc. A toggle lever is fixedly mounted on one side of the notched disc. A driven member is fixedly mounted on the connecting column. The driven member is provided with multiple sets of embedding slots, the number of which is equal to the number of processing devices. An abutment groove is provided between the embedding slots, the abutment groove fits with the edge of the notched disc, and the embedding slot fits with the toggle lever.

[0007] As a further embodiment of the present invention, the transmission assembly includes an inner adsorption component, which is a magnetic conveyor belt. The inner adsorption component is slidably connected within the limiting guide rail. Multiple sets of guide wheels are provided on both sides of the upper end of the limiting guide rail. The guide wheels are adjacent to the device and abut against the surface of the inner adsorption component. A transmission gear is fixedly installed on the lower end of each guide wheel. A transmission chain is sleeved on the outer side of the transmission gear on the same side. An internal gear is fixedly installed on the connecting column at the position of the mounting chamber. An intermediate gear is rotatably installed inside the mounting chamber. The intermediate gear meshes with the internal gear. The internal gear meshes with the intermediate gear. An edge gear is fixedly installed on the transmission gear at the middle position. The edge gear meshes with the intermediate gear.

[0008] As a further embodiment of the present invention, the clamping device includes a threaded rod and a bidirectional screw. The threaded rod is rotatably mounted on the operating table. Side limiting plates are fixedly mounted on both sides of the operating table. A drive gear is rotatably mounted on the side limiting plates. A driven gear is fixedly mounted on one end of the threaded rod on one side. The driven gear meshes with the drive gear. A side transmission component is provided between the two sets of threaded rods. A positioning plate is threaded onto the threaded rod. A limiting groove is formed on the upper surface of the operating table. The limiting groove is slidably connected to the positioning plate.

[0009] As a further embodiment of the present invention, side fixing plates are fixedly installed on both sides of the positioning plate, and bidirectional screws are rotatably installed on both sides of the side fixing plates. Threaded parts are threadedly connected to the bidirectional screws, and clamping plates are fixedly installed between the threaded parts. A stop plate is rotatably installed at the middle position on the side of the clamping plate away from the side fixing plates. A telescopic rod is fixedly installed on the side of the stop plate near the clamping plate. The other end of the telescopic rod is fixedly installed on the clamping plate. A compression spring is sleeved on the telescopic rod, and an upper transmission component is provided at one end of the bidirectional screw.

[0010] As a further embodiment of the present invention, the processing equipment includes a movable frame, which is slidably connected to the upper mounting plate. A sliding groove is provided on the upper surface of the upper mounting plate, and the movable frame is slidably connected in the sliding groove. A lower gear is rotatably mounted on the lower end of the movable frame, and an upper gear is rotatably mounted on the upper end of the movable frame. The upper gear meshes with the lower gear. A movable seat is fixedly mounted on the upper gear, and vertical slide rails are symmetrically mounted on the movable seat. A horizontal slide rail is slidably connected to the vertical slide rail, and a movable seat is slidably connected to the horizontal slide rail. A processing part is fixedly mounted on the movable seat.

[0011] As a further embodiment of the present invention, a connecting frame is fixedly installed on the side of the upper fixed plate away from the operating table, a side loading component is provided on the side of the connecting frame away from the upper fixed plate, and a robotic arm is fixedly installed on the connecting frame.

[0012] As a further embodiment of the present invention, a discharge plate is fixedly installed on the side of the upper fixing plate near the operating table, and the end of the limiting guide rail is disposed on the upper surface of the discharge plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. In this invention, the crankcase is fixed to the upper surface of the operating table by a clamping device. The parts required for crankcase processing are sequentially transported to the limiting guide rail according to the processing steps, and then enter the installation chamber along the limiting guide rail. The processing equipment is set on the upper surface of the upper mounting plate and arranged sequentially according to the operation sequence. The connecting column is driven to rotate by the shifting device, which moves the processing equipment required for the first processing step to the position of the operating table. The crankcase is initially processed by the corresponding processing equipment. Then, the connecting column is driven to rotate by the shifting device, which moves the processing equipment required for the next processing step to the position of the previously used processing equipment. This avoids moving the crankcase on the operating table, avoids the trouble of moving the crankcase, avoids the operation steps of repeatedly disassembling and fixing the crankcase, reduces the number of operation steps, and improves processing efficiency.

[0015] 2. In this invention, the rotation angle of the simultaneous switching device is fixed each time, ensuring that the position of each set of processing equipment and the operating table remains fixed, which facilitates the operation of the crankcase on the operating table by the processing equipment. At the same time, the connecting column drives the limit guide rail to rotate simultaneously through the transmission component each time it rotates. Each time the processing equipment is changed, the limit guide rail can be driven to extend by a fixed length, thereby causing the limit guide rail to rotate and export the part corresponding to the step from the direction of the operating table, completing the transportation of the processed parts, avoiding the trouble of setting up multiple sets of transmission equipment, and reducing processing costs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a side view structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the front view structure of the present invention;

[0019] Figure 3 For the present invention Figure 2 A partial structural diagram at point A in the middle;

[0020] Figure 4 For the present invention Figure 2 A partial structural diagram at point B;

[0021] Figure 5 For the present invention Figure 2 A partial structural diagram at point C;

[0022] Figure 6 This is a schematic diagram of the structure from a low angle of view of the present invention;

[0023] Figure 7 For the present invention Figure 6 A partial structural diagram at point D;

[0024] Figure 8 This is a cross-sectional view of the installation compartment in this invention.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Main mounting bracket; 2. Upper fixing plate; 3. Side mounting bracket; 4. Connecting column; 5. Side loading component; 6. Internal suction component; 7. Limiting guide rail; 8. Robotic arm; 9. Upper mounting plate; 10. Through groove; 11. Sliding groove; 12. Unloading plate; 13. Operating table; 14. Side limiting plate; 15. Limiting groove; 16. Drive gear; 17. Driven gear; 18. Side transmission component; 19. Positioning plate; 20. Clamping plate; 21. Abutment plate; 22. Lower threaded rod; 23. Double-acting screw; 24. Movable frame; 25. Connecting frame 26. Installation chamber; 27. Drive gear; 28. Limit gear; 29. ​​Lower drive plate; 30. Driven component; 31. Threaded component; 32. Upper transmission component; 33. Side fixing plate; 34. Compression spring; 35. Telescopic rod; 36. Machined part; 37. Vertical slide rail; 38. Lower gear; 39. Upper gear; 40. Movable seat; 41. Horizontal slide rail; 42. Moving seat; 43. Notched plate; 44. Actuating rod; 45. Embedded groove; 46. Abutment groove; 47. Internal gear; 48. Intermediate gear; 49. Edge gear. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figures 1-8 This invention provides a technical solution: a combined processing equipment for crankcase machining, comprising a main mounting frame 1, an upper fixing plate 2 fixedly mounted on the upper end of the main mounting frame 1, a mounting chamber 26 fixedly mounted between the upper fixing plates 2, a connecting column 4 rotatably mounted inside the mounting chamber 26, the upper end of the connecting column 4 extending above the mounting chamber 26 and fixedly mounted with multiple sets of upper mounting plates 9, the upper mounting plates 9 being rotatably mounted on the upper surface of the mounting chamber 26 and each mounted with a processing device, an operating table 13 fixedly mounted on one side of the upper fixing plate 2, and a clamping device slidably mounted on the operating table 13. The crankcase can be fixed in the middle position. The installation chamber 26 has through slots 10 at the end near the operating table 13 and the original operating table 13. Limiting guide rails 7 are fixedly installed in the installation chamber 26. The two ends of the limiting guide rails 7 extend from the through slots 10 to the outside of the installation chamber 26. A switching device is fixed on the connecting column 4. The switching device can accurately drive the connecting column 4 to rotate at a fixed angle to quickly change the processing equipment near the operating table 13. A transmission component is provided between the limiting guide rail 7 and the connecting column 4. The transmission component can automatically take out the parts to be assembled from the installation chamber 26 while the connecting column 4 rotates to change the processing equipment.

[0029] During operation, the crankcase in this invention is fixed to the upper surface of the operating table 13 by a clamping device. The parts required for crankcase processing are sequentially transported to the limiting guide rail 7 according to the processing steps, and then enter the installation chamber 26 along with the limiting guide rail 7. The processing equipment is set on the upper surface of the upper mounting plate 9 and arranged sequentially according to the operation sequence. The connecting column 4 is driven to rotate by the shifting device, which moves the processing equipment required for the first step of the processing operation to the position of the operating table 13. The corresponding processing equipment is pulled close to the operating table 13, and the crankcase is initially processed by the corresponding processing equipment. Then, the connecting column 4 is driven to rotate by the shifting device, which moves the processing equipment required for the next processing step to the position of the previously used processing equipment. This avoids moving the crankcase on the operating table 13, avoids the trouble of moving the crankcase, avoids the operation steps of repeatedly disassembling and fixing the crankcase, reduces the number of operation steps, and improves processing efficiency. Meanwhile, the rotation angle of the switching equipment is fixed each time, ensuring that the position of each group of processing equipment and the operating table 13 remains fixed (the motor drives the drive gear 27 to rotate, the drive gear 27 drives the limit gear 28 that meshes with it to rotate, the limit gear 28 drives the lower drive plate 29 to rotate, the lower drive plate 29 drives the notched plate 43 and the actuating rod 44 to rotate, when the notched plate 43 disengages from the contact groove 46, the actuating rod 44 rotates into the embedded groove 45, and through the actuating rod 44 drives the driven member 30 to rotate, the driven member 30 drives the connecting column 4 to rotate, the connecting column 4 drives the upper mounting plate 9 to rotate at the same time, and thus drives the processing equipment on it to rotate, the driven member 30 rotates rapidly under the action of the actuating rod 44 until the actuating rod 44 disengages from the embedded groove 45). As the feed plate 45 slides out, the next processing equipment moves to the operating table 13. At this point, the notched disc 43 is fully attached to the contact groove 46 again, thus restricting the rotation of the driven part 30 and preventing the driven part 30 from shifting due to inertia (which would cause the processing equipment to shift position after rotation). This facilitates the processing equipment's operation of the crankcase on the operating table 13. Meanwhile, each rotation of the connecting column 4 drives the limit guide rail 7 to rotate simultaneously through the transmission component. Each time the processing equipment is changed, the limit guide rail 7 can be extended by a fixed length, thus allowing the limit guide rail 7 to rotate and export the corresponding part from the operating table 13, completing the transportation of the processed parts. This avoids the hassle of setting up multiple sets of transmission equipment and reduces processing costs.

[0030] In this invention, the crankcase is fixed to the upper surface of the operating table 13 by a clamping device. The parts required for crankcase processing are sequentially transported to the limiting guide rail 7 according to the processing steps, and then enter the installation chamber 26 along with the limiting guide rail 7. The processing equipment is set on the upper surface of the upper mounting plate 9 and arranged sequentially according to the operation sequence. The connecting column 4 is driven to rotate by the shifting device, which moves the processing equipment required for the first processing step to the position of the operating table 13. The crankcase is initially processed by the corresponding processing equipment. Then, the connecting column 4 is driven to rotate by the shifting device, which moves the processing equipment required for the next processing step to the position of the previously used processing equipment. This avoids moving the crankcase on the operating table 13, avoids the trouble of moving the crankcase, avoids the operation steps of repeatedly disassembling and fixing the crankcase, reduces the operation steps, and improves processing efficiency.

[0031] In this invention, the rotation angle of the simultaneous switching device is fixed each time, ensuring that the position of each set of processing equipment and the operating table 13 remains fixed, which facilitates the operation of the crankcase on the operating table 13 by the processing equipment. At the same time, the connecting column 4 drives the limiting guide rail 7 to rotate simultaneously through the transmission component each time it rotates. Each time the processing equipment is changed, the limiting guide rail 7 can be driven to extend by a fixed length, thereby causing the limiting guide rail 7 to rotate and export the parts corresponding to the steps from the direction of the operating table 13, completing the transportation of the processed parts, avoiding the trouble of setting up multiple sets of transmission equipment, and reducing processing costs.

[0032] As a further embodiment of the present invention, the switching device includes a side mounting bracket 3, which is fixedly mounted on the side of the main mounting bracket 1 near the operating table 13. A drive gear 27 is rotatably mounted on the upper end of the side mounting bracket 3, and a limiting gear 28 is rotatably mounted on the side of the side mounting bracket 3 corresponding to the drive gear 27. The limiting gear 28 meshes with the drive gear 27. A lower driving disc 29 is fixedly mounted on the lower surface of the limiting gear 28, and a notched disc 43 is fixedly mounted on the lower surface of the lower driving disc 29. A toggle lever 44 is fixedly mounted on one side of the notched disc 43. A driven member 30 is fixedly mounted on the connecting column 4. The driven member 30 is provided with multiple sets of embedding grooves 45. The number of embedding grooves 45 is equal to the number of processing equipment. An abutment groove 46 is provided between the embedding grooves 45. The abutment groove 46 fits with the edge of the notched disc 43, and the embedding groove 45 fits with the toggle lever 44.

[0033] During operation, the motor drives the drive gear 27 to rotate, which in turn drives the limiting gear 28 to rotate. The limiting gear 28 then drives the lower drive disc 29 to rotate, which in turn drives the notched disc 43 and the actuating rod 44 to rotate. When the notched disc 43 disengages from the contact groove 46, the actuating rod 44 rotates into the embedded groove 45, driving the driven member 30 to rotate. The driven member 30 then drives the connecting column 4 to rotate, which in turn drives the upper mounting plate 9 to rotate simultaneously, thereby driving the processing equipment on it to rotate. The driven member 30 rotates rapidly under the action of the actuating rod 44 until the actuating rod 44 slides out of the embedded groove 45. At this point, the processing equipment for the next step moves to the position of the operating table 13. The notched disc 43 then fully reattaches to the contact groove 46, thus restricting the rotation of the driven member 30 and preventing the driven member 30 from rotating at an increased angle due to inertia, which could cause the processing equipment to shift position after rotation.

[0034] As a further embodiment of the present invention, the transmission assembly includes an inner adsorption component 6, which is a magnetic conveyor belt. The inner adsorption component 6 is slidably connected within a limiting guide rail 7. Multiple sets of guide wheels are provided on both sides of the upper end of the limiting guide rail 7. The guide wheels are adjacent to the equipment and abut against the surface of the inner adsorption component 6. A transmission gear is fixedly installed on the lower end of each guide wheel. A transmission chain is sleeved on the outer side of the transmission gear on the same side. An inner gear 47 is fixedly installed on the connecting column 4 at the position of the mounting chamber 26. An intermediate gear 48 is rotatably installed inside the mounting chamber 26. The intermediate gear 48 meshes with the inner gear 47. An edge gear 49 is fixedly installed on the transmission gear in the middle position. The edge gear 49 meshes with the intermediate gear 48.

[0035] During operation, the connecting column 4 rotates, driving the internal gear 47 to rotate. The internal gear 47 rotates, driving the intermediate gear 48 that meshes with it to rotate. The intermediate gear 48 rotates, driving the edge gear 49 to rotate. The edge gear 49 rotates, driving the transmission gear that is fixedly connected to it to rotate. The transmission gear interacts with the transmission chain, thereby driving the inner adsorption component 6 on it to move a fixed length towards the through groove 10 in the direction of the operating table 13. The inner adsorption component 6 is a magnetic disk. The parts to be processed move from the side loading component 5 to the limiting guide rail 7 according to the steps. The mechanical arm 8 then sequentially adheres the parts to the inner adsorption component 6.

[0036] As a further embodiment of the present invention, the clamping device includes a lower threaded rod 22 and a bidirectional screw 23. The lower threaded rod 22 is rotatably mounted on the operating table 13. Side limiting plates 14 are fixedly mounted on both sides of the operating table 13. A drive gear 16 is rotatably mounted on the side limiting plates 14. A driven gear 17 is fixedly mounted on one end of one side of the lower threaded rod 22. The driven gear 17 meshes with the drive gear 16. A side transmission component 18 is provided between the two sets of lower threaded rods 22. A positioning plate 19 is threadedly connected to the lower threaded rod 22. A limiting groove 15 is formed on the upper surface of the operating table 13. The limiting groove 15 is slidably connected to the positioning plate 19.

[0037] During operation, the crankcase is fixed on the positioning plate 19. During machining operations, the driven gear 17 is driven to rotate by the driving gear 16. The rotation of the driven gear 17 drives the lower threaded rod 22 on one side to rotate. The rotation of the lower threaded rod 22 drives both sets of lower threaded rods 22 to rotate simultaneously through the side transmission component 18. The lower threaded rod 22 drives the positioning plate 19 to move on the operating table 13, which in turn drives the crankcase to move on the operating table 13, making it convenient to adjust the machining position of the machining equipment on the crankcase.

[0038] As a further embodiment of the present invention, side fixing plates 33 are fixedly installed on both sides of the positioning plate 19, and bidirectional screws 23 are rotatably installed on both sides of the side fixing plates 33. Threaded parts 31 are threadedly connected to the bidirectional screws 23, and clamping plates 20 are fixedly installed between the threaded parts 31. Abutment plates 21 are rotatably installed at the middle position on the side of the clamping plate 20 away from the side fixing plates 33. A telescopic rod 35 is fixedly installed on the side of the abutment plate 21 close to the clamping plate 20. The other end of the telescopic rod 35 is fixedly installed on the clamping plate 20. A compression spring 34 is sleeved on the telescopic rod 35. An upper transmission member 32 is provided at one end of the bidirectional screws 23.

[0039] During operation, the bidirectional screw 23 rotates under the action of the upper transmission component 32. The bidirectional screw 23 drives the threaded components 31 on both sides to move relative to each other. The relative movement of the threaded components 31 drives the clamping plate 20 to move relative to each other. The movement of the clamping plate 20 drives the abutment plate 21 to move relative to each other, thereby clamping the crankcase between the clamping plates 20 and fixing the crankcase between the clamping plates 20.

[0040] As a further embodiment of the present invention, the processing equipment includes a movable frame 24, which is slidably connected to an upper mounting plate 9. A sliding groove 11 is provided on the upper surface of the upper mounting plate 9, and the movable frame 24 is slidably connected in the sliding groove 11. A lower gear 38 is rotatably mounted on the lower end of the movable frame 24, and an upper gear 39 is rotatably mounted on the upper end of the movable frame 24. The upper gear 39 meshes with the lower gear 38. A movable seat 40 is fixedly mounted on the upper gear 39. Vertical slide rails 37 are symmetrically mounted on the movable seat 40. A horizontal slide rail 41 is slidably connected to the vertical slide rail 37. A movable seat 42 is slidably connected to the horizontal slide rail 41. A processing part 36 is fixedly mounted on the movable seat 42.

[0041] As a further embodiment of the present invention, a connecting frame 25 is fixedly installed on the side of the upper fixed plate 2 away from the operating table 13, a side loading component 5 is provided on the side of the connecting frame 25 away from the upper fixed plate 2, and a robotic arm 8 is fixedly installed on the connecting frame 25.

[0042] As a further embodiment of the present invention, an unloading plate 12 is fixedly installed on the side of the upper fixing plate 2 near the operating table 13, and the end of the limiting guide rail 7 is disposed on the upper surface of the unloading plate 12.

Claims

1. A combined machining equipment for crankcase machining, comprising a main mounting bracket (1), characterized in that: An upper fixing plate (2) is fixedly installed on the upper end of the main mounting frame (1). An installation chamber (26) is fixedly installed between the upper fixing plates (2). A connecting column (4) is rotatably installed inside the installation chamber (26). The upper end of the connecting column (4) extends above the installation chamber (26) and is fixedly installed with multiple sets of upper mounting plates (9). The upper mounting plates (9) are rotatably disposed on the upper surface of the installation chamber (26) and each is provided with a processing device. An operating table (13) is fixedly installed on one side of the upper fixing plate (2). A clamping device is slidably disposed on the operating table (13). The clamping device is used to fix the crankcase in its middle position. The installation chamber (26) is close to A through groove (10) is provided at one end of both the near-operating table (13) and the original operating table (13). A limiting guide rail (7) is fixedly installed in the installation chamber (26). The two ends of the limiting guide rail (7) extend from the through groove (10) to the outside of the installation chamber (26). A switching device is fixed on the connecting column (4). The switching device can accurately drive the connecting column (4) to rotate at a fixed angle to quickly replace the processing equipment close to the operating table (13). A transmission component is provided between the limiting guide rail (7) and the connecting column (4). The transmission component can automatically take out the parts to be assembled from the installation chamber (26) while the connecting column (4) rotates to replace the processing equipment. The switching device includes a side mounting bracket (3), which is fixedly mounted on the side of the main mounting bracket (1) near the operating table (13). A drive gear (27) is rotatably mounted on the upper end of the side mounting bracket (3), and a limiting gear (28) is rotatably mounted on the side of the side mounting bracket (3) corresponding to the drive gear (27). The limiting gear (28) meshes with the drive gear (27), and a lower drive disc (29) is fixedly mounted on the lower surface of the limiting gear (28). A notched disc (43) is fixedly installed on the lower surface of 9), and a toggle lever (44) is fixedly installed on one side of the notched disc (43). A follower (30) is fixedly installed on the connecting column (4). The follower (30) is provided with multiple sets of embedding grooves (45). The number of embedding grooves (45) is equal to the number of processing equipment. An abutment groove (46) is provided between the embedding grooves (45). The abutment groove (46) fits with the edge of the notched disc (43). The embedding groove (45) fits with the toggle lever (44). The transmission assembly includes an inner adsorption component (6), which is a magnetic conveyor belt. The inner adsorption component (6) is slidably connected to the limiting guide rail (7). Multiple sets of guide wheels are provided on both sides of the upper end of the limiting guide rail (7). The guide wheels are adjacent to the equipment and abut against the surface of the inner adsorption component (6). A transmission gear is fixedly installed on the lower end of each guide wheel. A transmission chain is sleeved on the outer side of the transmission gear on the same side. An inner gear (47) is fixedly installed on the connecting column (4) at the position of the installation chamber (26). An intermediate gear (48) is rotatably installed in the installation chamber (26). The inner gear (47) meshes with the intermediate gear (48). An edge gear (49) is fixedly installed on the transmission gear at the middle position. The edge gear (49) meshes with the intermediate gear (48).

2. The combined machining apparatus for machining of a crankcase according to claim 1, characterized in that: The clamping device includes a lower threaded rod (22) and a double-acting screw (23). The lower threaded rod (22) is rotatably mounted on the operating table (13). Side limiting plates (14) are fixedly mounted on both sides of the operating table (13). A drive gear (16) is rotatably mounted on the side limiting plate (14). A driven gear (17) is fixedly mounted on one end of the lower threaded rod (22) on one side. The driven gear (17) meshes with the drive gear (16). A side transmission component (18) is provided between the two sets of lower threaded rods (22). A positioning plate (19) is threadedly connected to the lower threaded rod (22). A limiting groove (15) is opened on the upper surface of the operating table (13). The limiting groove (15) is slidably connected to the positioning plate (19).

3. The combined machining apparatus for machining of a crankcase according to claim 2, characterized in that: Side fixing plates (33) are fixedly installed on both sides of the positioning plate (19). Bidirectional screws (23) are rotatably installed on both sides of the side fixing plates (33). Threaded parts (31) are threaded onto the bidirectional screws (23). Clamping plates (20) are fixedly installed between the threaded parts (31). Abutment plates (21) are rotatably installed at the middle position on the side of the clamping plate (20) away from the side fixing plates (33). A telescopic rod (35) is fixedly installed on the side of the abutment plate (21) close to the clamping plate (20). The other end of the telescopic rod (35) is fixedly installed on the clamping plate (20). A compression spring (34) is sleeved on the telescopic rod (35). An upper transmission part (32) is provided at one end of the bidirectional screws (23).

4. The combined machining apparatus for machining of a crankcase according to claim 3, characterized in that: The processing equipment includes a movable frame (24), which is slidably connected to the upper mounting plate (9). The upper surface of the upper mounting plate (9) is provided with a sliding groove (11), and the movable frame (24) is slidably connected in the sliding groove (11). A lower gear (38) is rotatably installed at the lower end of the movable frame (24), and an upper gear (39) is rotatably installed at the upper end of the movable frame (24). The upper gear (39) meshes with the lower gear (38). A movable seat (40) is fixedly installed on the upper gear (39). Vertical slide rails (37) are symmetrically installed on the movable seat (40). A horizontal slide rail (41) is slidably connected to the vertical slide rail (37). A movable seat (42) is slidably connected to the horizontal slide rail (41). A processing part (36) is fixedly installed on the movable seat (42).

5. The combined machining apparatus for machining of a crankcase according to claim 4, characterized in that: A connecting frame (25) is fixedly installed on the side of the upper fixed plate (2) away from the operating table (13). A side loading component (5) is provided on the side of the connecting frame (25) away from the upper fixed plate (2). A robotic arm (8) is fixedly installed on the connecting frame (25).

6. The combined machining apparatus for machining of a crankcase according to claim 5, characterized in that: The upper fixing plate (2) is fixedly installed with a discharge plate (12) on the side near the operating table (13), and the end of the limiting guide rail (7) is set on the upper surface of the discharge plate (12).

Images