A multi-station numerical control machining device

Abstract

The utility model provides a kind of multi-station numerical control processing device, comprising: processing platform, the upper surface of the processing platform is fixedly connected with bearing seat, rotatingly installed in the processing platform upper surface processing disc, the processing disc is rotatably installed with several fixed discs in annular array;Driving part, the driving part is installed on the bearing seat, and is connected with the processing disc, for controlling the processing disc rotates on the bearing seat;Transmission part, the transmission part is installed on the bearing seat and several fixed discs, for controlling several fixed discs rotates in corresponding position;When the multi-station numerical control processing device is driven by driving part and processing disc rotates and realizes the switching of processing station, the mechanical thrust of the gravity of counterweight and the resistance of the side wall of overturning groove and clamping frame is coordinated by conversion part, realizes the 180 degree overturning of clamping frame, to facilitate the processing of different surfaces of workpiece in station switching process, ensure the processing efficiency of workpiece.

Description

Technical Field

[0001] This utility model relates to the field of CNC machining equipment technology, and more specifically, to a multi-station CNC machining equipment. Background Technology

[0002] Numerical control machine tools are a type of automated machine tool equipped with a program control system. This control system can logically process programs with control codes or other symbolic instructions, decode them, and thus enable the machine tool to move and process workpieces.

[0003] To improve processing efficiency, existing technologies employ multi-station rotary tables. These rotary tables typically have the ability to transfer workpieces between different processing stations, but their functions are relatively limited. Most multi-station rotary tables only have simple clamping functions at each station, and the workpiece's posture at a single station is fixed. If other surfaces of the workpiece need to be processed, the workpiece needs to be re-clamped after single-sided processing, which is cumbersome and has low processing efficiency. Alternatively, each station can be equipped with an independent rotary drive mechanism, which increases the overall manufacturing cost and control complexity of the equipment. Utility Model Content

[0004] The purpose of this invention is to provide a multi-station CNC machining device to solve the above-mentioned problems.

[0005] To achieve the above objectives, this utility model provides a multi-station CNC machining device, including: a machining table, a support seat fixedly connected to the upper surface of the machining table, a machining disk rotatably mounted on the upper surface of the machining table, and a plurality of fixed disks rotatably mounted on the machining disk in a circular array; A drive unit is mounted on the support base and connected to the processing disk, used to control the rotation of the processing disk on the support base; A transmission unit is mounted on the support base and the plurality of fixed disks, and is used to control the rotation of the plurality of fixed disks at corresponding positions; Clamping parts, several clamping parts are respectively installed in several fixed plates, for initially fixing the workpiece to be processed; A conversion unit is mounted on the support and the plurality of clamping parts, and is used to flip the plurality of clamping parts; The reinforcing parts are symmetrically installed on the bearing seat and the plurality of clamping parts to lock the clamping parts at corresponding positions.

[0006] Furthermore, the clamping part includes a receiving groove opened in the fixed plate, a clamping frame rotatably installed in the receiving groove via a bearing, two clamping blocks symmetrically arranged in the clamping frame, two V-shaped slots respectively opened on the two clamping blocks, a plurality of sliders respectively symmetrically installed on both sides of the two clamping blocks, two sliding grooves symmetrically opened in the clamping frame and allowing the plurality of sliders to move, and a plurality of compression springs with one end fixed to the plurality of sliders and the other end fixedly connected to the inner wall of the two sliding grooves.

[0007] Furthermore, the conversion part includes two flip grooves symmetrically opened on the upper surface of the support seat and corresponding to the plurality of clamping frames, a plurality of counterweights fixed to the outer walls of the plurality of clamping frames, a reserved groove opened on the support seat, a shield slidably installed in the reserved groove and used to cover one of the flip grooves, and a handle fixed on the shield.

[0008] Furthermore, the reinforcement includes an electric push rod fixed in the bearing seat, a control groove opened on the bearing seat, an assembly table fixed to the telescopic end of the electric push rod and movably installed in the control groove, a plurality of adjustment grooves arranged in a rectangular row on the assembly table, a plurality of fixing screws movably installed in the plurality of adjustment grooves, a plurality of fixing nuts threadedly connected to the lower ends of the plurality of fixing screws and abutting against the lower surface of the assembly table, a plurality of wedge-shaped blocks fixedly connected to the upper ends of the plurality of fixing screws, and a plurality of wedge-shaped pressure grooves symmetrically opened on the plurality of clamping blocks and adapted to the plurality of wedge-shaped blocks.

[0009] Furthermore, the drive unit includes a drive groove formed on the support seat, a geared motor assembly fixed in the drive groove, a plurality of support balls arranged in a ring array on the support seat and movably connected to the support seat, and an annular guide groove formed on the lower surface of the processing disk and corresponding to the plurality of support balls. The output end of the geared motor is fixedly connected to the lower surface of the processing disk.

[0010] Furthermore, the transmission unit includes several transmission gear rings respectively fixedly sleeved on the outer walls of several fixed disks, two control motors symmetrically fixed in the drive groove, a movable groove opened in the processing disk and connected to the drive groove, and two drive gears respectively fixed to the output ends of the two control motors and movably arranged in the movable groove; The two drive gears mesh with several transmission gear rings.

[0011] Furthermore, several rubber strips are fixedly connected at equal intervals within several of the V-shaped slots.

[0012] Compared with the prior art, the embodiments of this utility model have the following beneficial effects: This multi-station CNC machining device, by setting up a drive unit to drive the rotation of the machining disk, allows the workpieces fixed in several fixed disks to be quickly changed positions. While processing is carried out at one station, workpiece loading, unloading, and inspection operations are performed at other stations without stopping the machine when changing workpieces, ensuring the processing efficiency of the workpieces. Furthermore, when the fixed disk moves to the processing position, the transmission unit can work to control the fixed disk at the processing position to rotate, so as to realize the rotation processing of the workpieces in the fixed disk, effectively improving the practicality of the device. This multi-station CNC machining device, through a conversion unit, allows the clamping frame rotatably connected in the fixed plate to rotate 90 degrees within the flipping groove between two machining positions when the machining plate rotates and several fixed plates are interchanged. After the clamping frame disengages from the flipping groove, it interacts with the inner wall of the groove, causing the clamping frame to rotate another 90 degrees, thus completing a 180-degree flip. This allows the workpiece in the clamping frame to be processed alternately on both sides after a single clamping, avoiding positioning errors caused by repeated clamping and processing, and preventing the impact on machining efficiency. Furthermore, the conversion unit utilizes gravity and mechanical force to achieve workpiece flipping, eliminating the cost of equipping each station with a separate flipping motor. This multi-station CNC machining device uses a clamping part to quickly and initially fix the workpiece with spring clamping. When the clamping part moves to the machining part at the machining position, several wedge-shaped blocks in the reinforcing part squeeze and engage with several wedge-shaped grooves on the clamping part to effectively lock the workpiece, ensuring assembly efficiency and stability during machining. This prevents vibration caused by machining contact and ensures the machining quality of the workpiece. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 A perspective view of the present invention is shown; Figure 2 This invention demonstrates a partially disassembled three-dimensional representation. Figure 1 ; Figure 3 A partial perspective view of the present invention is shown; Figure 4 This invention provides a partially cross-sectional perspective view. Figure 1 ; Figure 5 This invention demonstrates a partially disassembled three-dimensional representation. Figure 2 ; Figure 6 This invention demonstrates a partially disassembled three-dimensional representation. Figure 3 ; Figure 7 This invention provides a partially cross-sectional perspective view. Figure 2 .

[0015] In the picture 1. Machining table; 2. Bearing seat; 3. Machining tray; 4. Fixing tray; 5. Drive unit; 6. Transmission unit; 7. Clamping unit; 8. Conversion unit; 9. Reinforcing unit; 10. Receiving groove; 11. Clamping frame; 12. Clamping block; 13. V-shaped groove; 14. Slider; 15. Slide groove; 16. Compression spring; 17. Tilting groove; 18. Counterweight block; 19. Reserved groove; 20. Shield; 21. Handle; 22. Electric push rod; 23. Control groove; 24. Assembly table; 25. Adjustment groove; 26. Fixing screw; 27. Fixing nut; 28. Wedge-shaped clamping block; 29. ​​Wedge-shaped pressure groove; 30. Drive groove; 31. Gear motor assembly; 32. Support ball; 33. Annular guide groove; 34. Transmission gear ring; 35. Control motor; 36. Movable groove; 37. Drive gear; 38. Rubber strip. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0017] like Figure 1-7 As shown, a multi-station CNC machining device includes: a machining table 1, a support seat 2 fixedly connected to the upper surface of the machining table 1, a machining disk 3 rotatably mounted on the upper surface of the machining table 1, and a plurality of fixed disks 4 rotatably mounted on the machining disk 3 in a circular array. A drive unit 5 is mounted on the support base 2 and connected to the processing disk 3, and is used to control the rotation of the processing disk 3 on the support base 2; Transmission unit 6, which is mounted on the support base 2 and the plurality of fixed disks 4, is used to control the rotation of the plurality of fixed disks 4 in corresponding positions; Clamping parts 7, a plurality of clamping parts 7 are respectively installed in a plurality of fixed disks 4, for initially fixing the workpiece to be processed; A conversion part 8 is mounted on the support 2 and the plurality of clamping parts 7, and is used to flip the plurality of clamping parts 7. Reinforcing part 9, two of the reinforcing parts 9 are symmetrically installed on the bearing seat 2 and a plurality of clamping parts 7, for locking the clamping parts 7 at corresponding positions; During operation, the position with the shield 20 in the switching section is the loading and unloading station. When in use, the operator places the workpiece to be processed into the idle station fixing plate 4. The workpiece is clamped into the V-shaped slots 13 of the two clamping blocks 12. Under the elastic force of several compression springs 16, the clamping blocks 12 automatically center and clamp the workpiece, completing a quick and preliminary fixation. Next, the drive unit 5 operates, and the reduction motor unit 31 drives the processing plate 3 to rotate precisely at a certain angle, transporting the clamped workpiece to the processing station. Simultaneously, it sends out the already processed workpiece. After the switching is completed, the reinforcement unit 9 at the processing station operates, and the electric push rod 22 pushes several wedge-shaped clamping blocks 28 upwards, embedding them into several wedge-shaped pressure grooves 29 on the two clamping blocks 12 in the clamping unit 7, further locking the workpiece fixed by the clamping unit 7 to ensure the stability of subsequent workpiece processing. Furthermore, during workpiece processing, the transmission unit 6 can be activated to control the electric... The machine 35 drives the drive gear 37 to rotate, which in turn meshes with the transmission gear ring 34 on the fixed plate 4 of the workstation, causing the entire fixed plate 4 to rotate together with the workpiece, realizing the self-rotation processing of the workpiece. After the processing of one side of the workpiece is completed, the drive unit 5 controls the processing plate 3 to rotate again, so that the workpiece is moved to the flipping station between the two processing stations. During this process, the shifting unit works. When the fixed plate 4 enters the flipping groove 17, the clamping frame 11 begins to flip due to the gravity of the counterweight 18. Under the rotation drive of the subsequent processing plate 3, its side contacts the wall of the flipping groove 17 and is forced to complete a 180° complete flip. The workpiece is sent to the next processing station for processing of the other side of the workpiece. The workpiece in the clamping frame 11 can complete the alternating processing of the two sides after one clamping, avoiding the positioning error caused by repeated clamping of the workpiece, and avoiding the impact of repeated clamping and processing on the processing efficiency.

[0018] Optionally, the clamping part 7 includes a receiving groove 10 opened in the fixed plate 4, a clamping frame 11 rotatably installed in the receiving groove 10 via a bearing, two clamping blocks 12 symmetrically arranged in the clamping frame 11, two V-shaped slots 13 respectively opened on the two clamping blocks 12, a plurality of sliders 14 respectively symmetrically installed on both sides of the two clamping blocks 12, two sliding grooves 15 symmetrically opened in the clamping frame 11 and allowing the plurality of sliders 14 to move, and a plurality of compression springs 16 with one end fixed to the plurality of sliders 14 and the other end fixedly connected to the inner wall of the two sliding grooves 15 respectively. In use, the two clamping blocks 12 in the corresponding clamping frame 11 are pulled in opposite directions. At this time, the workpiece is placed into the V-shaped groove 13 between the two clamping blocks 12. After the workpiece is placed in place, under the action of the rebound force of several compression springs 16, the two clamping blocks 12 move towards the center and automatically clamp the workpiece. The V-shaped groove design can adapt to cylindrical workpieces of different diameters. The spring force is used to achieve automatic centering and clamping, and the loading and unloading of workpieces is very fast, so as to effectively improve the workpiece processing efficiency.

[0019] Optionally, the conversion part 8 includes two flip grooves 17 symmetrically opened on the upper surface of the support seat 2 and corresponding to the plurality of clamping frames 11, a plurality of counterweights 18 respectively fixed to the outer wall of the plurality of clamping frames 11, a reserved groove 19 opened on the support seat 2, a shield 20 slidably installed in the reserved groove 19 and used to shield one of the flip grooves 17, and a handle 21 fixed on the shield 20; In use, the drive unit 5 controls the rotation of the processing disk 3 to adjust the processing position of several workpieces fixed on the processing disk 3. During the adjustment process, when the fixed disk 4 with the workpiece is fixed rotated to the position of the flipping groove 17 of the support seat 2 without the cover 20, the clamping frame 11 is not supported by the support seat 2. Under the gravity of the counterweight 18, the clamping frame 11 will rotate 90 degrees in the receiving groove 10. This allows the clamping frame 11 to abut against the inner wall of the flipping groove 17 when the processing disk 3 rotates. Since the processing disk 3 will continuously provide a strong rotational driving force during rotation, and the side wall of the flipping groove 17 is fixed, the clamping frame 11 and the inner wall of the flipping groove 17 will generate an interaction force. This force can push the clamping frame 11 to complete the subsequent 90-degree rotation in the receiving groove 10 with its rotation axis as the center, so that the clamping frame 11 completes a 180-degree rotation, allowing the workpiece to be flipped over. This facilitates the automatic rotation of the workpiece to complete the alternating processing of the two sides, ensuring processing efficiency. When the finished workpiece is moved into the flipping groove 17 with the shield 20, the user can pull the shield 20 with the handle 21 to shield the flipping groove 17. During the movement, the clamping frame 11 is pushed to complete the flipping and reset, which facilitates the subsequent flipping operation of the workpiece. After shielding, the clamping frame 11 is effectively supported, which facilitates the disassembly and assembly of the finished workpiece and the workpiece to be processed, making it easy to use.

[0020] Optionally, the reinforcing part 9 includes an electric push rod 22 fixed in the bearing seat 2, a control groove 23 opened on the bearing seat 2, an assembly table 24 fixed to the telescopic end of the electric push rod 22 and movably installed in the control groove 23, a plurality of adjustment grooves 25 arranged in a rectangular row on the assembly table 24, a plurality of fixing screws 26 movably installed in the plurality of adjustment grooves 25, a plurality of fixing nuts 27 threadedly connected to the lower ends of the plurality of fixing screws 26 and abutting against the lower surface of the assembly table 24, a plurality of wedge-shaped blocks 28 fixedly connected to the upper ends of the plurality of fixing screws 26, and a plurality of wedge-shaped pressure grooves 29 symmetrically opened on the plurality of clamping blocks 12 and adapted to the plurality of wedge-shaped blocks 28. When the workpiece is initially clamped and moved above the reinforcement part 9 at the processing position under the control of the drive unit 5, the electric push rod 22 at the corresponding reinforcement part 9 is activated. The electric push rod 22 pushes the assembly table 24 upward, so that the wedge-shaped locking blocks 28 on the assembly table 24 are precisely inserted into the wedge-shaped pressure grooves 29 at the bottom of the two clamping blocks 12 in the corresponding clamping part 7. As the wedge-shaped locking blocks 28 continue to rise, their inclined surfaces interact with the inclined surfaces of the wedge-shaped pressure grooves 29, converting an upward thrust into a horizontal inward squeezing force on the two clamping blocks 12, so that the two clamping blocks 12 firmly lock the workpiece, further fixing it on the basis of the initial spring clamping. When machining a workpiece, it can effectively resist strong cutting forces, prevent vibration, ensure machining accuracy, and ensure the self-centering of the workpiece, facilitating the rotational machining of the workpiece. When the wedge-shaped blocks 28 are installed on the assembly table 24, the fixing screws 26 can move horizontally in the adjusting grooves 25 respectively, and after moving, the fixing bolts are rotated to abut against the assembly table 24 to lock the position of the wedge-shaped blocks 28. The horizontal position of the wedge-shaped blocks 28 can be finely adjusted to ensure that when fixing workpieces with large size differences, the wedge-shaped blocks 28 can be smoothly inserted into the wedge-shaped pressure grooves 29, ensuring the normal operation of the machining department.

[0021] Optionally, the drive unit 5 includes a drive groove 30 opened on the support seat 2, a reduction motor assembly 31 fixed in the drive groove 30, a plurality of support balls 32 arranged in a ring array on the support seat 2 and movably connected to the support seat 2, and an annular guide groove 33 opened on the lower surface of the processing disk 3 and corresponding to the plurality of support balls 32. The output end of the geared motor 31 is fixedly connected to the lower surface of the processing disk 3; When in use, the geared motor 31 works, which can drive the processing disk 3 to rotate, so that several fixed disks 4 on the processing disk 3 can move synchronously and exchange processing positions. While the workpieces are being processed on some of the fixed disks 4, the operator can load and unload the processed workpieces to ensure processing efficiency. During the rotation, several support balls 32 distributed in a ring array can move in the ring guide groove 33 to provide stable support for the processing disk 3, which effectively improves the rigidity and stability of the processing disk 3 and the upper structure, and effectively prevents the processing disk 3 from deforming and vibrating under heavy load.

[0022] Optionally, the transmission part 6 includes a plurality of transmission gear rings 34 respectively fixedly sleeved on the outer wall of a plurality of fixed disks 4, two control motors 35 symmetrically fixed in the drive groove 30, a movable groove 36 opened in the processing disk 3 and connected to the drive groove 30, and two drive gears 37 respectively fixed to the output ends of the two control motors 35 and movably arranged in the movable groove 36. The two drive gears 37 mesh with a plurality of transmission gear rings 34; Two drive gears 37 correspond to the two reinforcing parts 9 respectively. When the processing disk 3 rotates to the corresponding angle and is in a stationary state, the two fixed disks 4 equipped with workpieces move to the processing position. The two drive gears 37 at the output end of the two control motors 35 mesh with the transmission gears outside the corresponding two fixed disks 4. When the two control motors 35 drive the two drive gears 37 to rotate, they mesh with the two corresponding transmission gears and the fixed disks 4, allowing the fixed workpieces to rotate and complete more flexible processing, effectively improving the processing effect and efficiency. The rotation of the workpieces in the two processing stations is independent and does not interfere with each other. At the same time, when the processing disk 3 rotates, the two drive gears 37 move in the movable groove 36 and do not obstruct the movement of the processing disk 3.

[0023] Optionally, several rubber strips 38 are fixedly connected at equal intervals within several of the V-shaped slots 13; when the two clamping blocks 12 clamp the workpiece, the rubber strips 38 are compressed, which can prevent the metal clamping blocks 12 from directly contacting the workpiece surface, avoiding pinching or scratching the precision or machined surface, and the rubber in contact with the workpiece has strong friction, which can improve the clamping firmness of the clamping part 7 on the workpiece, prevent the workpiece from slipping during processing, and ensure processing stability.

[0024] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-station numerically controlled machining device, characterized by, include: A processing table (1) is fixedly connected to a bearing seat (2) on its upper surface. A processing disk (3) is rotatably installed on the upper surface of the processing table (1). Several fixed disks (4) are rotatably installed on the processing disk (3) in a circular array. A drive unit (5) is mounted on the support base (2) and connected to the processing disk (3) for controlling the rotation of the processing disk (3) on the support base (2); A transmission unit (6) is mounted on the support base (2) and a plurality of fixed disks (4) for controlling the rotation of the plurality of fixed disks (4) at corresponding positions; Clamping parts (7), a plurality of clamping parts (7) are respectively installed in a plurality of fixed disks (4) for initially fixing the workpiece to be processed; A conversion part (8) is installed on the support base (2) and a plurality of clamping parts (7) for flipping the plurality of clamping parts (7). The two reinforcing parts (9) are symmetrically installed on the bearing seat (2) and several clamping parts (7) to lock the clamping parts (7) at the corresponding positions.

2. The multi-station CNC machining device as described in claim 1, characterized in that, The clamping part (7) includes a receiving groove (10) opened in the fixed plate (4), a clamping frame (11) rotatably installed in the receiving groove (10) by bearings, two clamping blocks (12) symmetrically arranged in the clamping frame (11), two V-shaped slots (13) respectively opened on the two clamping blocks (12), a number of sliders (14) symmetrically installed on both sides of the two clamping blocks (12), two slide grooves (15) symmetrically opened in the clamping frame (11) and allowing the sliders (14) to move, and a number of compression springs (16) with one end fixed to the sliders (14) and the other end fixedly connected to the inner wall of the two slide grooves (15).

3. The multi-station CNC machining device as described in claim 2, characterized in that, The conversion part (8) includes two flip grooves (17) symmetrically opened on the upper surface of the support (2) and corresponding to the clamping frames (11), a number of counterweights (18) fixed on the outer wall of the clamping frames (11), a reserved groove (19) opened on the support (2), a shield (20) slidably installed in the reserved groove (19) and used to shield one of the flip grooves (17), and a handle (21) fixed on the shield (20).

4. The multi-station CNC machining device as described in claim 3, characterized in that, The reinforcement part (9) includes an electric push rod (22) fixed in the bearing seat (2), a control groove (23) opened on the bearing seat (2), an assembly table (24) fixed to the telescopic end of the electric push rod (22) and movably installed in the control groove (23), a number of adjustment grooves (25) arranged in a rectangle on the assembly table (24), a number of fixing screws (26) movably installed in the number of adjustment grooves (25), a number of fixing nuts (27) threadedly connected to the lower end of the number of fixing screws (26) and abutting against the lower surface of the assembly table (24), a number of wedge-shaped blocks (28) fixedly connected to the upper end of the number of fixing screws (26), and a number of wedge-shaped pressure grooves (29) symmetrically opened on the number of clamps (12) and adapted to the number of wedge-shaped blocks (28).

5. A multi-station CNC machining device as described in claim 2, characterized in that, The drive unit (5) includes a drive groove (30) opened on the support seat (2), a geared motor assembly (31) fixed in the drive groove (30), a number of support balls (32) arranged in a ring array on the support seat (2) and movably connected to the support seat (2), and an annular guide groove (33) opened on the lower surface of the processing plate (3) and corresponding to the number of support balls (32). The output end of the geared motor assembly (31) is fixedly connected to the lower surface of the processing disk (3).

6. The multi-station CNC machining device as described in claim 5, characterized in that, The transmission unit (6) includes several transmission gear rings (34) that are respectively fixedly sleeved on the outer wall of several fixed disks (4), two control motors (35) that are symmetrically fixed in the drive groove (30), a movable groove (36) that is opened in the processing disk (3) and communicates with the drive groove (30), and two drive gears (37) that are respectively fixed at the output end of the two control motors (35) and movably arranged in the movable groove (36). The two drive gears (37) mesh with a plurality of transmission gear rings (34).

7. A multi-station CNC machining device as described in claim 6, characterized in that, Several rubber strips (38) are fixedly connected at equal intervals in several of the V-shaped slots (13).

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