A CNC machining center for automotive metal parts

Abstract

The present application provides a CNC machining center for automobile metal parts, including an equipment assembly, a tooling unit arranged on the equipment assembly, a machining unit and a transfer unit; wherein the tooling unit includes a tooling base plate and a plurality of rollers rotatably mounted on the tooling base plate; the transfer unit includes two groups of transfer mechanisms symmetrically arranged, each of which includes a side base plate and a sliding seat, the side base plate is provided with a first slideway and a second slideway, the first slideway is arranged horizontally, the second slideway is located above the first slideway and is connected to the first slideway, the rollers are matched and slidably arranged in the first slideway and the second slideway; the sliding seat is vertically slidably arranged above the second slideway; the sliding seat is rotatably installed with a connecting rod, the end of the connecting rod is provided with a connecting sleeve, and the roller is installed with a connecting mechanism matched and connected with the connecting sleeve to drive the tooling unit to move on the first slideway and the second slideway. Based on this, the downtime waiting time of the CNC machining center during loading and unloading can be reduced to improve the overall processing efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of workpiece processing, and in particular to a CNC processing center for automobile metal parts. Background Art

[0002] CNC machining center, the full name is "Computer Numerical Control" machining center, that is, computer numerical control machining center; it is a highly automated machine tool, mainly composed of mechanical equipment and CNC system, with its own tool library, and has automatic tool change function, so that the workpiece can be continuously processed in multiple processes after one clamping. CNC machining center can automatically complete drilling, boring, milling, reaming, tapping and other processing operations, greatly improving the processing efficiency, especially suitable for processing workpieces with complex shapes, multiple processes and high precision requirements, such as box-type workpieces, complex curved surface workpieces, etc.

[0003] When producing workpieces such as automotive metal parts, existing CNC machining centers can usually only process one or two workpieces at a time, requiring frequent manual loading and unloading operations; however, workpieces are usually produced in large batches, and frequent material removal and loading operations result in high labor intensity for personnel and also affect the processing efficiency of the workpieces.

[0004] Based on this, the Chinese patent application with the publication number CN115741182A discloses a high-efficiency tooling for CNC machining, which is used to fix and position the workpiece; the high-efficiency tooling for CNC machining includes a tooling base plate, a fixture block is fixed on the top of the tooling base plate, and a limit block and a support block are set on the top of the fixture block to support and limit the workpiece when the workpiece is placed on the fixture block; a cylinder is fixed on the top of the tooling base plate, and a pressure block is fixed on the movable end of the cylinder to press the workpiece against the support block. In addition, the number of fixture blocks and cylinders is set in multiple, so that multiple workpieces can be clamped and fixed at one time to improve machining efficiency.

[0005] Regarding the above-mentioned related technical solutions, although the setting of multiple sets of clamp blocks and cylinders can complete the fixation of multiple workpieces at one time, after completing the CNC processing of each workpiece, it is still necessary to take out each workpiece one by one by manual operation, and then re-fix each workpiece to be processed on the tooling one by one. Under this operation mode, the CNC machining center still has a long downtime waiting time, and its overall processing efficiency still needs to be improved. Summary of the invention

[0006] Based on this, the present application provides a CNC machining center for automotive metal parts, which can reduce the downtime waiting time of the CNC machining center during loading and unloading, so as to improve the overall machining efficiency.

[0007] The present application provides a CNC machining center for automotive metal parts that adopts the following technical solutions:

[0008] A CNC machining center for automobile metal parts, comprising an equipment assembly, the equipment assembly being provided with a tooling unit for fixing a workpiece, a machining unit for machining the workpiece, and a transfer unit for forcing the tooling unit to approach the machining unit, wherein the tooling unit comprises a tooling base plate and a plurality of rollers rotatably mounted on two opposite sides of the tooling base plate;

[0009] The transfer unit includes two groups of transfer mechanisms that are symmetrically arranged, each of which includes a fixed side base plate and a sliding seat that is slidably mounted on the side base plate, and a first slideway and a second slideway are arranged on the side of the side base plate close to the other group of transfer mechanisms, the first slideway is arranged horizontally, and the second slideway is located above the first slideway and is connected to the first slideway; the rollers are matched and slidably arranged in the first slideway and the second slideway;

[0010] The sliding seat is vertically slidably arranged above the second slide; the sliding seat is rotatably installed with a connecting rod, the end of the connecting rod is provided with a connecting sleeve, and the roller is installed with a connecting mechanism that cooperates with the connecting sleeve. When the connecting sleeve and the connecting mechanism are fixed, the sliding seat can drive the tooling unit to move on the first slide and the second slide.

[0011] By adopting the above-mentioned technical solution, when the CNC machining center of the present application processes the workpiece, it is necessary to fix each workpiece one by one on the tooling base plate, and then push the tooling base plate into the first slide, and use the connecting mechanism to fix the roller and the connecting sleeve, and by controlling the sliding seat to move upward, the connecting rod can move with the tooling base plate along the first slide to the second slide and keep it fixed. At this time, the tooling base plate is in a vertical state, and each workpiece can be smoothly processed through the machining unit to obtain the desired workpiece shape.

[0012] Since the tooling base plate and the connecting sleeve are detachably fixed, during the process of the machining unit processing the workpiece, the operator can fix the workpieces to be processed one by one on another tooling base plate outside the machining center, which can save a lot of loading time; after the workpiece processing is completed, the tooling base plate and the connecting sleeve are removed, and the other tooling base plate that fixes the workpiece is fixed to the connecting sleeve, so that the loading and unloading operations can be completed quickly, which greatly reduces the downtime waiting time of the CNC machining center during loading and unloading, thereby improving the overall processing efficiency of the CNC machining center.

[0013] Optionally, the first slideway is open at one end away from the processing unit, a structural groove opposite to the second slideway is provided at the bottom of the first slideway, a movable seat is vertically slidably mounted on the side base plate, and a first spring is provided between the movable seat and the side base plate, and in an initial state, the first spring forces the movable seat to pass through the structural groove and be partially located inside the first slideway;

[0014] A limit baffle is provided inside the structural groove, and the limit baffle is located on the side of the movable seat away from the processing unit; one side of the limit baffle is hinged to the side base plate, and a torsion spring is provided at the rotating connection between the limit baffle and the side base plate, and the torsion spring normally forces the limit baffle to rest against the inner wall of the side of the structural groove away from the processing unit.

[0015] By adopting the above-mentioned technical solution, the roller of the tooling base plate is pushed into the first slide from the open end of the first slide, and the roller can abut against the limit baffle, forcing the limit baffle to flip in the direction close to the processing unit, so that the tooling base plate can smoothly enter the inner side of the first slide; then the roller and the connecting sleeve are fixed by using the connecting mechanism to control the sliding seat to move upward, and the connecting rod can pull the tooling base plate back backward. When the roller abuts against the limit baffle, it can move upward better and enter the second slide under the action of the upper force of the movable seat, thereby flipping the tooling base plate to a vertical position, so as to facilitate the processing of the workpiece on the tooling base plate by the processing unit.

[0016] Optionally, the side base plate is provided with a sliding groove for slidingly installing the sliding seat, and a rack plate is fixed on the side of the side base plate, the rack plate is located outside the sliding groove, and the extension direction of the rack plate is the same as the extension direction of the sliding groove;

[0017] The sliding seat is rotatably plugged with a rotating shaft, one end of the rotating shaft is connected to a driving motor to drive the rotating shaft to rotate, and a transmission gear is fixed to the end of the rotating shaft away from the driving motor, and the transmission gear and the rack plate are meshed with each other for transmission.

[0018] By adopting the above technical solution, the driving motor is controlled to drive the rotating shaft and the transmission gear fixed thereto to rotate. Since the transmission gear and the rack plate are meshed with each other, the rotation of the transmission gear can drive the sliding seat to move along the sliding groove, thereby enabling the sliding seat to move vertically on the side base plate.

[0019] Optionally, a linear module is fixed on the side of the side substrate, and the extension direction of the linear module is the same as the horizontal direction. The movable end of the linear module is fixed with a limit seat, and the limit seat is provided with a limit hole; a limit column is fixed on the side of the tooling base plate, and when the driving motor drives the tooling unit to move to the extreme position at the top of the second slide, the limit column and the limit hole are arranged opposite to each other, and the linear module is used to force the limit hole to match the limit column.

[0020] By adopting the above-mentioned technical solution, when the driving motor runs and drives the tooling unit to move to the extreme position at the top of the second slide, the linear module is controlled to move to drive the limit seat, and the limit socket of the limit seat is matched with the limit plug sleeve, which can play an auxiliary supporting role for the tooling base plate, thereby reducing the possibility of position deviation of the tooling base plate when the subsequent processing unit processes the workpiece, thereby ensuring the processing accuracy and quality of the workpiece.

[0021] Optionally, a snap-in groove is provided on one side of the connecting sleeve, and the connecting mechanism includes a plug-in column movably inserted in the roller, a snap-in piece provided at one end of the plug-in column, and an anti-slip piece provided at the other end of the plug-in column, and the snap-in piece is snap-fitted with the snap-in groove; a second spring is provided between the snap-in piece and the roller, and when the roller moves to a position opposite to the snap-in groove, the second spring forces the snap-in piece to move outward and match the snap-in piece provided in the snap-in groove.

[0022] By adopting the above-mentioned technical solution, when the roller of the tooling base plate is matched and enters the inside of the first slideway, by moving the connecting rod and rotating the connecting rod to a position where the connecting sleeve and the clamping piece are directly opposite, the clamping piece can move outward under the elastic force of the second spring and maintain the clamping fit with the clamping groove, so as to realize the quick connection between the tooling unit and the connecting rod, so that the movement of the sliding seat can smoothly drive the movement of the tooling base plate; in addition, after completing the processing of the workpiece, by forcing the anti-slip part to move in the direction away from the roller, the clamping piece can be easily disengaged from the clamping groove, so as to realize the quick disassembly between the working unit and the connecting rod, which is easy to use.

[0023] Optionally, the tooling unit further comprises a plurality of clamping mechanisms arranged on the tooling base plate, each clamping mechanism being arranged side by side along the width direction of the tooling base plate, and each clamping mechanism forming a fixed station for fixing the workpiece;

[0024] The clamping mechanism includes a side block, a lower pressure block and an electric push rod. The side block is provided in multiple numbers and is divided into two groups. Each side block is fixed to the tooling bottom plate, and the two groups of side block are arranged at intervals. A support is movably installed on the side of each side block away from the other group of side block. A third spring is provided between the support and the side block, and the third spring is used to force the support to be normally exposed to the side block.

[0025] The electric push rod is fixed to the side of the tooling bottom plate away from the side stop seat, and the lower pressing block is fixedly connected to the movable end of the electric push rod. When the electric push rod moves, the lower pressing block moves toward the tooling bottom plate to press the workpiece.

[0026] By adopting the above-mentioned technical solution, the setting of multiple groups of clamping mechanisms enables a tooling base plate to fix multiple workpieces at one time, so as to reduce the frequency of loading and unloading by operators and improve the overall processing efficiency of the CNC machining center; wherein, by setting two side stop seats, when the workpiece is placed in a fixed workstation, the support members on the two groups of side stop seats can respectively abut against the two opposite inner sides of the workpiece, thereby playing a role in preliminary positioning, and then by controlling the movement of the electric push rod, the electric push rod drives the lower pressure block to move in the direction close to the tooling base plate, so as to press the workpiece into position, so as to facilitate the subsequent smooth processing of the workpiece.

[0027] Optionally, the clamping mechanism also includes an elastic base fixed to the tooling base plate, and the elastic base is located between two groups of adjacent side stop seats; an outer push column is movably installed on the side of the elastic base away from the tooling base plate, and a fourth spring is provided between the outer push column and the elastic base, and the fourth spring is used to force the outer push column to be normally exposed from the elastic base.

[0028] By adopting the above-mentioned technical solution and setting an elastic base, when the electric push rod drives the lower pressure block to move toward the tooling bottom plate, the workpiece can be pressed against the outer push column, and the elastic force generated by the fourth spring acting on the outer push column can provide auxiliary support for the inner side of the workpiece, so as to facilitate the subsequent smooth processing of the workpiece.

[0029] Optionally, the equipment assembly is provided with a material drop chute area, the material drop chute area is located below the second slideway; a filter material grid plate and a collection box are provided inside the material drop chute area, the filter material grid plate is elastically mounted on the material drop chute area and is located above the collection box;

[0030] The equipment assembly is also provided with a material collection port connected to the material drop chute area, the filter material grid is arranged to be tilted downward in the direction toward the material collection port, and a vibration motor is fixedly installed on the filter material grid, and the vibration motor is used to drive the filter material grid to vibrate.

[0031] By adopting the above technical solution, when the processing of the workpiece is completed and the tooling base plate is still in a vertical position, each workpiece can be naturally dropped downward and fall onto the filter grid inside the material drop chute area by controlling the electric push rod to reset. Since the vibration motor continuously forces the filter grid to vibrate, the cutting waste generated during the processing can fall through the grid holes of the filter grid into the collection box for collection, and the workpiece on the filter grid can gradually move downward along the inclined direction of the filter grid and finally fall out of the collection port for collection, so as to improve the neatness of the collected workpieces.

[0032] Optionally, a plurality of material guide column plates are fixed on the surface of the filter material grid plate, and the material guide column plates are arranged equidistantly along the inclined direction of the filter material grid plate.

[0033] By adopting the above technical solution, by making the guide column plate protrude from the surface of the filter grid plate, the workpiece will stay on the surface of the guide column plate when it falls on the filter grid plate, reducing the possibility of the workpiece being partially stuck in the grid holes on the filter grid plate, so as to facilitate the smooth collection of the workpiece.

[0034] In summary, the present application includes at least one of the following beneficial technical effects:

[0035] 1. While the machining unit is processing the workpiece, the operator can fix the workpiece to be processed on another tooling base plate; after the workpiece is processed, the tooling base plate and the connecting sleeve are removed, and the other tooling base plate that has fixed the workpiece is fixed on the connecting sleeve, so that the loading and unloading operations can be completed quickly, which greatly reduces the downtime waiting time of the CNC machining center during loading and unloading;

[0036] 2. Through the clamping fit between the clamping piece and the clamping groove, the tooling unit and the connecting rod can be quickly connected, so that the movement of the sliding seat can smoothly drive the tooling base plate to move, and after the workpiece is processed, the tooling unit and the connecting rod can be quickly disassembled, which is convenient to use;

[0037] 3. By arranging a filter grating and a collection box inside the material drop chute area, the cutting waste generated during the processing can fall from the grid holes of the filter grating into the collection box for collection, and the workpieces on the filter grating can gradually move downward along the inclined direction of the filter grating and finally fall out from the collection port for collection, so as to improve the neatness of the collected workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0039] Figure 2 It is a structural schematic diagram of a tooling unit in an embodiment of the present application;

[0040] Figure 3 It is a partial structural schematic diagram of the equipment assembly in the embodiment of the present application, which mainly reflects the structure of the processing unit;

[0041] Figure 4 is a schematic diagram of the structure of the transfer unit in an embodiment of the present application;

[0042] Figure 5 It is a schematic diagram of the local structure at the junction of the first slideway and the second slideway in the embodiment of the present application;

[0043] Figure 6 yes Figure 4 The enlarged view of point A in the middle;

[0044] Figure 7 is a schematic diagram of a half-section structure of a roller and a connecting mechanism in an embodiment of the present application;

[0045] Figure 8 It is a partial cross-sectional view of the equipment assembly of the embodiment of the present application, which mainly shows the structure of the filter material grid and the collection box.

[0046] Description of reference numerals: 1. Equipment assembly; 11. Operating base; 2. Tooling unit; 21. Tooling bottom plate; 211. Limiting plug column; 22. Roller; 221. Inner concave ring groove; 23. Connecting mechanism; 231. Connecting column; 232. Clamping piece; 233. Anti-slip piece; 234. Second spring; 24. Side stopper; 241. Supporting piece; 25. Lower pressing block; 26. Electric push rod; 27. Elastic base; 271. External ejector column; 28. Fixed station; 3. Processing unit; 31. Multi-axis moving platform; 32. Clamping mechanism;

[0047] 4. Transfer unit; 41. Side base plate; 411. Sliding groove; 412. Rack plate; 413. Base plate; 414. Linear module; 415. Limit seat; 416. Limit plug hole; 42. First slideway; 421. Structural groove; 422. Limiting protrusion; 43. Second slideway; 44. Limit baffle; 441. Torsion spring; 45. Movable seat; 451. Movable plug post; 46. First spring; 47. Sliding seat; 471. Connecting rod; 472. Connecting sleeve; 473. Clamping groove; 474. Rotating shaft; 475. Driving motor; 476. Transmission gear;

[0048] 5. Material drop chute area; 51. Material collection port; 52. Blocking piece; 53. Threaded rod; 54. Fifth spring; 55. Anti-drop nut; 6. Filter material grid; 61. Material guide column plate; 7. Collection box. DETAILED DESCRIPTION

[0049] The following is combined with Figure 1-Figure 8 This application is described in further detail.

[0050] The embodiment of the present application discloses a CNC machining center for automobile metal parts.

[0051] Reference Figure 1 A CNC machining center for automobile metal parts includes an equipment assembly 1, which is provided with a tooling unit 2 for fixing a workpiece, a machining unit 3 for machining the workpiece, and a transfer unit 4 for forcing the tooling unit 2 to approach the machining unit 3; wherein, with reference to Figure 2 The tooling unit 2 includes a tooling base plate 21, rollers 22 and a clamping mechanism. There are multiple rollers 22, and each roller 22 is rotatably installed on two opposite sides of the tooling base plate 21. In this embodiment, the specific number of rollers 22 is set to four, that is, the number of rollers 22 on each side of the tooling base plate 21 is two, and the two rollers 22 are respectively arranged on the two side edges of the tooling base plate 21.

[0052] There are multiple groups of clamping mechanisms, each group of clamping mechanisms is arranged side by side along the width direction of the tooling base plate 21, and each clamping mechanism is formed with a fixed station 28 for fixing the workpiece. The clamping mechanism includes a side block 24, a lower pressing block 25, an electric push rod 26 and an elastic base 27. The side block 24 is fixed to the surface of the tooling base plate 21. There are multiple side block 24s, and all side block 24s are divided into two groups and arranged at intervals; each side block 24 is movably installed with a support member 241 on the side away from the other side block 24, and a third spring (not shown in the figure) is arranged between the support member 241 and the side block 24 where it is located. The third spring can always generate an elastic force acting on the support member 241, thereby forcing the support member 241 to be normally exposed to the side block 24.

[0053] The elastic base 27 is fixed to the surface of the tooling bottom plate 21, and the elastic base 27 is located between the two groups of side stop seats 24; it should be noted that the number of elastic bases 27 can be multiple, and each elastic base 27 is arranged equidistantly along the fixed workstation 28; each elastic base 27 is movably installed with an outer top column 271 on the side away from the tooling bottom plate 21, and a fourth spring (not shown in the figure) is arranged between the outer top column 271 and the elastic base 27, and the fourth spring can always generate an elastic force acting on the outer top column 271, thereby forcing the outer top column 271 to be normally exposed to the side stop seat 24.

[0054] The electric push rod 26 is fixed to the side of the tooling base plate 21 away from the side stop 24. The movable end of the electric push rod 26 is penetrated through the tooling base plate 21 and exposed on the surface of the tooling base plate 21, and the lower pressing block 25 is fixedly connected to the movable end of the electric push rod 26. In this embodiment, the movable end of the electric push rod 26 is in a normal extended state, and the lower pressing block 25 can maintain a distance from the outer top column 271. When the workpiece is placed in the fixed station 28, the two support members 241 are respectively pressed against the two inner side walls of the workpiece to preliminarily position the workpiece, and then the electric push rod 26 is controlled to move, and the electric push rod 26 drives the lower pressing block 25 to move in the direction close to the tooling base plate 21, and can press the workpiece against the outer top column 271 to achieve stable positioning of the workpiece.

[0055] It should be noted here that in actual production, corresponding lateral limiting structures will be set at corresponding positions on the surface of the tooling base plate 21 for workpieces of different shapes to ensure the position accuracy of the workpiece when it is fixed in the fixed station 28; the lateral limiting structure can be a combination of a column and a socket, or it can be other matching structures, which is not the focus to be protected by this embodiment, and therefore will not be described in detail here.

[0056] Reference Figure 3The processing unit 3 includes a multi-axis mobile platform 31, a clamping mechanism 32 and a tool magazine mechanism (not shown in the figure). The multi-axis mobile platform 31 and the tool magazine mechanism are fixed to the equipment assembly 1, and the clamping mechanism 32 is fixed to the moving end of the multi-axis mobile platform 31; the tool magazine mechanism includes a tool holder and a variety of tools placed on the tool holder. When processing the workpiece, the clamping mechanism 32 is driven by the multi-axis mobile platform 31 to move to the tool holder, and various tools can be automatically clamped. The specific structure of the above processing unit 3 is well known to those skilled in the art, and will not be described in detail here.

[0057] Back to Figure 1 The equipment assembly 1 is provided with an operating base 11, and the transfer unit 4 includes two groups of transfer mechanisms arranged on the top surface of the operating base 11, and the two groups of transfer mechanisms are symmetrically arranged; wherein the transfer mechanism includes a side substrate 41 and a sliding seat 47, the side substrate 41 is vertically fixed to the top surface of the operating base 11, and the side surface of the side substrate 41 close to the other group of transfer mechanisms is provided with a first slide 42 and a second slide 43; in this embodiment, the width of the first slide 42 and the width of the second slide 43 are both set to be equal to the outer diameter of the roller 22, so that the roller 22 can match and enter the inside of the first slide 42 and the inside of the second slide 43.

[0058] Specific reference Figure 4 The first slideway 42 is horizontally arranged, and the first slideway 42 is closed at one end close to the processing unit 3, and is open at one end away from the processing unit 3; after the roller 22 enters the first slideway 42 through the opening of the first slideway 42, its movement in the first slideway 42 can move the tooling base plate 21 toward / away from the processing unit 3. Figure 5 It should be noted that, in this embodiment, the outer peripheral surface of the roller 22 is provided with an inner concave annular groove 221, and the inner wall of the first slide 42 is provided with a limiting protrusion 422. When the roller 22 enters the first slide 42, the limiting protrusion 422 can match and enter the inner concave annular groove 221, thereby realizing precise positioning of the tooling base plate 21, so as to improve the molding quality of the workpiece after processing.

[0059] The second slideway 43 is located above the first slideway 42 and is arranged vertically, and the bottom end of the second slideway 43 is connected to the first slideway 42; a structural groove 421 is provided at the bottom of the first slideway 42, and the structural groove 421 penetrates the inner and outer side walls of the side substrate 41, and the structural groove 421 is arranged opposite to the second slideway 43. In addition, a limit baffle 44 is arranged inside the structural groove 421, one side of the limit baffle 44 is hinged to the side substrate 41, and a torsion spring 441 is provided at the rotation connection between the limit baffle 44 and the side substrate 41, and the torsion spring 441 is used to force the limit baffle 44 to rotate to a vertical position normally, at which time the limit baffle 44 can abut against the side wall of the structural groove 421 away from the processing unit 3.

[0060] A movable seat 45 is installed on the side of the side substrate 41 close to the first slideway 42, and the movable seat 45 is located inside the structural groove 421, and the movable seat 45 is spaced apart from the limit baffle 44. A first spring 46 is arranged between the movable seat 45 and the side substrate 41. Specifically, a base plate 413 is fixed to the side of the side substrate 41, and the base plate 413 is provided with a through hole that passes vertically; a movable plug post 451 is arranged at the bottom of the movable seat 45, and the movable plug post 451 is matched and inserted in the through hole, and the first spring 46 is sleeved on the movable plug post 451; one end of the first spring 46 abuts against the base plate 413, and the other end abuts against the movable seat 45. The first spring 46 can always generate an elastic force acting on the movable seat 45, thereby forcing the movable seat 45 to pass through the structural groove 421 and be partially located inside the first slideway 42.

[0061] During specific use, the roller 22 of the tooling base plate 21 is pushed into the first slide 42 from the open end of the first slide 42, and the roller 22 can abut against the limit baffle 44 and force the limit baffle 44 to flip in the direction close to the processing unit 3, so that the tooling base plate 21 can smoothly enter the inner side of the first slide 42; after the roller 22 passes through the limit baffle 44, the limit baffle 44 is reset and rotated under the elastic force of the torsion spring 441 until it abuts against the side wall of the structural groove 421, which can limit the roller 22 from retreating and leaving the first slide 42.

[0062] Reference Figure 6 The side base plate 41 is provided with a sliding groove 411, which is located above the second slideway 43 and extends vertically; the sliding seat 47 is matched and installed in the sliding groove 411 and can move along the extension direction of the sliding groove 411. A rotating shaft 474 is rotatably inserted in the middle of the sliding seat 47, and one end of the rotating shaft 474 is connected to a driving motor 475, and the body of the driving motor 475 is fixed to the side of the sliding seat 47; a transmission gear 476 is fixed to the end of the rotating shaft 474 away from the driving motor 475, and the rotating shaft 474 and the transmission gear 476 can be driven to rotate together by controlling the operation of the driving motor 475.

[0063] A rack plate 412 is fixed to the side of the side base plate, and the rack plate 412 is located on the outside of the sliding groove 411, and the extension direction of the rack plate 412 is the same as the extension direction of the sliding groove 411; the transmission gear 476 is meshed with the rack plate 412, and when the driving motor 475 is running and drives the transmission gear 476 to rotate, it can force the sliding seat 47 to move vertically along the sliding groove 411.

[0064] Back to Figure 4 A connecting rod 471 is rotatably mounted on the side of the sliding seat 47, and the connecting position between the connecting rod 471 and the sliding seat 47 is located at the top of the connecting rod 471; Figure 7A connecting sleeve 472 is fixed to one end of the connecting rod 471 away from the sliding seat 47, and a clamping groove 473 is provided on one side of the connecting sleeve 472. The clamping groove 473 is coaxially arranged with the connecting sleeve 472. A connecting mechanism 23 is installed on one of the rollers 22 located on one side of the tooling bottom plate 21. The connecting mechanism 23 can be connected with the connecting sleeve 472, so that the movement of the sliding seat 47 in the sliding groove 411 can drive the tooling unit 2 to move on the first slide 42 and the second slide 43.

[0065] Specifically, the connection mechanism 23 includes a plug-in column 231, a clamping member 232 and an anti-slipping member 233. The plug-in column 231 is movably inserted in the center of the roller 22. The clamping member 232 and the anti-slipping member 233 are respectively fixed at both ends of the plug-in column 231. It should be noted that the clamping member 232 and the anti-slipping member 233 can be respectively located at two opposite sides of the roller 22 after being fixed to the plug-in column 231. A second spring 234 is provided between the clamping member 232 and the roller 22. The second spring 234 is sleeved on the plug-in column 231, and one end of the second spring 234 abuts against the side of the clamping member 232, and the other end abuts against the side of the roller 22. The second spring 234 can always generate an elastic force acting on the clamping member 232, thereby forcing the clamping member 232 to move in a direction away from the roller 22.

[0066] During specific use, after the roller 22 of the tooling base plate 21 is pushed into the first slide 42, the connecting rod 471 is turned to rotate the connecting rod 471 to a position where the connecting sleeve 472 is directly opposite to the snap-in component 232. The snap-in component 232 can automatically move outward under the elastic force of the second spring 234 and maintain a snap-fit ​​fit with the snap-in groove 473, so as to achieve a quick connection between the tooling base plate 21 and the connecting rod 471, and is also easy to disassemble, thus having the advantage of convenient disassembly and assembly.

[0067] In addition, back to Figure 6 A linear module 414 is fixed on the side of the side substrate 41, and the extension direction of the linear module 414 is the same as the horizontal direction; a limit seat 415 is fixed on the movable end of the linear module 414, and a limit socket 416 is provided in the limit seat 415. A limit pin 211 is fixed on the side of the tooling base plate 21 away from the clamping mechanism. When the driving motor 475 is running and drives the tooling unit 2 to move to the extreme position at the top of the second slideway 43, the limit pin 211 and the limit socket 416 can be arranged opposite to each other. By controlling the operation of the linear module 414, the limit socket 416 can be matched and sleeved on the limit pin 211, so as to play an auxiliary support role for the tooling base plate 21, reduce the possibility of position deviation of the tooling base plate 21 during subsequent processing, and ensure the processing accuracy and processing quality of the workpiece.

[0068] Back to Figure 3The equipment assembly 1 is provided with a material chute area 5, which is located between the operating base 11 and the processing unit 3 and directly below the second slideway 43, and a collecting port 51 connected to the material chute area 5 is provided on the side of the equipment assembly 1; a filter material grid plate 6 and a collecting box 7 are provided inside the material chute area 5, and the collecting box 7 is fixedly placed at the bottom of the material chute area 5, and the filter material grid plate 6 is elastically installed inside the material chute area 5 and is located above the collecting box 7.

[0069] Specific reference Figure 8 , a plurality of baffles 52 are fixed to the inner wall of the material drop chute area 5, each baffle 52 is vertically fixed with a threaded rod 53, and the threaded rod 53 is sleeved with a fifth spring 54; a sleeve hole is opened on the side edge of the filter material grid 6, and the filter material grid 6 is sleeved on the threaded rod 53 through the sleeve hole, and the end of each threaded rod 53 is threadedly connected with an anti-slip nut 55, which is used to prevent the filter material grid 6 from detaching from the threaded rod 53. It should be noted that after the filter material grid 6 is installed in the material drop chute area 5, the filter material grid 6 can tilt downward toward the direction of the collection port 51; a vibration motor (not shown in the figure) is fixedly installed at the bottom of the filter material grid 6, and when the vibration motor is in operation, it can drive the filter material grid 6 to vibrate up and down.

[0070] When the processing unit 3 completes processing of the workpiece and the tooling base plate 21 is still in the vertical position, by controlling the electric push rod 26 to reset, each workpiece can fall downward under the action of its own gravity and finally fall on the filter material grid 6. At this time, the vibration motor operates to drive the filter material grid 6 to vibrate, and the cutting waste generated during the processing can fall from the grid holes of the filter material grid 6 to the collection box 7 for collection, and the workpiece on the filter material grid 6 can gradually move downward along the inclined direction of the filter material grid 6 and finally fall out from the collection port 51 for collection, so as to improve the neatness of the collected workpieces.

[0071] In addition, a plurality of guide columns 61 are provided on the surface of the filter grid 6. The guide columns 61 are arranged equidistantly along the inclination direction of the filter grid 6, which can reduce the possibility of the workpiece being partially stuck in the grid holes on the filter grid 6, so as to facilitate the smooth collection of the workpiece.

[0072] The implementation principle of a CNC machining center for automotive metal parts in the present application embodiment is as follows:

[0073] When the CNC machining center of the present application processes the workpiece, each workpiece is fixed one by one on the tooling base plate 21, and then the tooling base plate 21 is pushed between the two first slideways 42, and the connecting rod 471 is moved to make the roller 22 located opposite to the connecting sleeve 472, and the clamping member 232 automatically moves outward under the elastic force of the second spring 234 and matches the clamping groove 473 to achieve a detachable connection between the roller 22 and the connecting rod 471; then the driving motor 475 is operated to drive the sliding seat 47 to move upward along the sliding groove 411, and the roller 22 is driven by the connecting rod 471 to move along the first slideway 42 to the second slideway 43 and remain fixed. At this time, the tooling base plate 21 is in a vertical state, and each workpiece can be smoothly processed through the machining unit 3 to obtain the desired workpiece shape.

[0074] During the process of processing the workpiece by the machining unit 3, the operator can fix the workpiece to be processed one by one on another tooling base plate 21 outside the machining center, which can save a lot of loading time; after the workpiece processing is completed, the tooling base plate 21 and the connecting sleeve 472 are removed, and the other tooling base plate 21 that fixes the workpiece is detachably connected to the connecting sleeve 472, which can quickly complete the loading and unloading operations, greatly reducing the downtime waiting time of the CNC machining center during loading and unloading, thereby improving the overall processing efficiency of the CNC machining center.

[0075] The above are preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A CNC machining center for automotive metal parts, characterized by: The device assembly (1) comprises a tooling unit (2) for fixing a workpiece, a processing unit (3) for processing the workpiece, and a transfer unit (4) for forcing the tooling unit (2) to approach the processing unit (3); wherein the tooling unit (2) comprises a tooling base plate (21) and a plurality of rollers (22) rotatably mounted on two opposite sides of the tooling base plate (21); and the tooling base plate (21) is capable of mounting a plurality of workpieces simultaneously; The transfer unit (4) comprises two groups of transfer mechanisms which are symmetrically arranged, each of the transfer mechanisms comprising a fixed side base plate (41) and a sliding seat (47) which is slidably mounted on the side base plate (41); a first slideway (42) and a second slideway (43) are arranged on the side of the side base plate (41) close to the other group of transfer mechanisms, the first slideway (42) is arranged horizontally, and the second slideway (43) is located above the first slideway (42) and is connected to the first slideway (42); the roller (22) is slidably arranged in the first slideway (42) and the second slideway (43); The sliding seat (47) is vertically slidably arranged above the second slideway (43); a connecting rod (471) is rotatably mounted on the sliding seat (47), a connecting sleeve (472) is provided at the end of the connecting rod (471), and a connecting mechanism (23) is installed on the roller (22) that is detachably connected to the connecting sleeve (472); when the connecting sleeve (472) and the connecting mechanism (23) are fixed, the sliding seat (47) can drive the tooling unit (2) to move on the first slideway (42) and the second slideway (43); The first slideway (42) is open at one end away from the processing unit (3); a structural groove (421) opposite to the second slideway (43) is provided at the bottom of the first slideway (42); a movable seat (45) is vertically slidably mounted on the side base plate (41); and a first spring (46) is provided between the movable seat (45) and the side base plate (41); in an initial state, the first spring (46) forces the movable seat (45) to pass through the structural groove (421) and be partially located inside the first slideway (42); A limit baffle (44) is provided inside the structural groove (421), and the limit baffle (44) is located on a side of the movable seat (45) away from the processing unit (3); one side of the limit baffle (44) is hinged to the side base plate (41), and a torsion spring (441) is provided at the rotational connection between the limit baffle (44) and the side base plate (41), and the torsion spring (441) normally forces the limit baffle (44) to abut against an inner wall of the structural groove (421) on a side away from the processing unit (3).

2. The CNC machining center according to claim 1, characterized in that: The side base plate (41) is provided with a sliding groove (411) for slidingly installing the sliding seat (47), and a rack plate (412) is fixed to the side surface of the side base plate (41), the rack plate (412) is located outside the sliding groove (411), and the extension direction of the rack plate (412) is the same as the extension direction of the sliding groove (411); The sliding seat (47) is rotatably plugged with a rotating shaft (474), one end of the rotating shaft (474) is connected to a driving motor (475) to drive the rotating shaft (474) to rotate, and one end of the rotating shaft (474) away from the driving motor (475) is fixed with a transmission gear (476), and the transmission gear (476) and the rack plate (412) are meshed with each other for transmission.

3. The CNC machining center according to claim 2, characterized in that: A linear module (414) is fixed on the side surface of the side substrate (41), the extension direction of the linear module (414) is the same as the horizontal direction, a limit seat (415) is fixed on the movable end of the linear module (414), and the limit seat (415) is provided with a limit plug hole (416); A limit pin (211) is fixed on the side of the tooling base plate (21), and when the drive motor (475) drives the tooling unit (2) to move to the limit position at the top of the second slideway (43), the limit pin (211) and the limit socket (416) are arranged opposite each other, and the linear module (414) is used to force the limit socket (416) to match and fit on the limit pin (211).

4. The CNC machining center according to claim 1, characterized in that: A snap-fit ​​groove (473) is provided on one side of the connecting sleeve (472); the connecting mechanism (23) comprises a plug-in column (231) movably inserted into the roller (22), a snap-fit ​​piece (232) provided at one end of the plug-in column (231), and an anti-dropping piece (233) provided at the other end of the plug-in column (231); the snap-fit ​​piece (232) and the snap-fit ​​groove (473) are snap-fitted and matched; a second spring (234) is provided between the snap-fit ​​piece (232) and the roller (22); when the roller (22) moves to a position directly opposite to the snap-fit ​​groove (473), the second spring (234) forces the snap-fit ​​piece (232) to move outward and match the snap-fit ​​groove (473).

5. The CNC machining center according to claim 1, characterized in that: The tooling unit (2) further comprises a plurality of groups of clamping mechanisms arranged on the tooling base plate (21), each group of the clamping mechanisms being arranged side by side along the width direction of the tooling base plate (21), and each of the clamping mechanisms forming a fixing station (28) for fixing a workpiece; The clamping mechanism comprises a side block (24), a lower pressing block (25) and an electric push rod (26); the side block (24) is provided in plurality and is divided into two groups; each side block (24) is fixed to the tooling bottom plate (21), and the two groups of side block (24) are arranged at intervals; a support member (241) is movably mounted on the side of each side block (24) away from the other group of side block (24); a third spring is provided between the support member (241) and the side block (24); the third spring is used to force the support member (241) to be normally exposed outside the side block (24); The electric push rod (26) is fixed to a side surface of the tooling base plate (21) away from the side stop seat (24), and the lower pressing block (25) is fixedly connected to a movable end of the electric push rod (26). When the electric push rod (26) moves, the lower pressing block (25) moves in a direction close to the tooling base plate (21) to press the workpiece.

6. The CNC machining center according to claim 5, characterized in that: The clamping mechanism further comprises an elastic base (27) fixed to the tooling base plate (21), wherein the elastic base (27) is located between two sets of adjacent side stop seats (24); an outer top column (271) is movably mounted on the side of the elastic base (27) away from the tooling base plate (21), and a fourth spring is provided between the outer top column (271) and the elastic base (27), wherein the fourth spring is used to force the outer top column (271) to be normally exposed from the elastic base (27).

7. The CNC machining center according to claim 6, characterized in that: The equipment assembly (1) is provided with a material drop chute area (5), and the material drop chute area (5) is located below the second slideway (43); a filter material grid plate (6) and a collection box (7) are provided inside the material drop chute area (5), and the filter material grid plate (6) is elastically mounted on the material drop chute area (5) and is located above the collection box (7); The equipment assembly (1) is further provided with a material collection port (51) connected to the material drop chute area (5); the filter material grid plate (6) is arranged to be tilted downward in a direction toward the material collection port (51); and a vibration motor is fixedly mounted on the filter material grid plate (6); the vibration motor is used to drive the filter material grid plate (6) to vibrate.

8. The CNC machining center according to claim 7, characterized in that: A plurality of material guide column plates (61) are fixed on the surface of the filter material grid plate (6), and the material guide column plates (61) are arranged at equal distances along the inclination direction of the filter material grid plate (6).

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