A CNC machine tool-based ring workpiece machining equipment and production process

Abstract

This invention discloses a CNC machine tool-based ring-shaped workpiece processing equipment and production process. Its features include a CNC machine tool for processing the workpiece, a robotic arm for unloading the processed ring-shaped workpiece, a finished product collection device for storing the ring-shaped workpiece, and a control system for controlling the entire production line. It also includes an unloading mechanism mounted on the robotic arm for unloading the processed ring-shaped workpiece. The unloading mechanism comprises a second unloader that unloads several ring-shaped workpieces that fall onto the tool holder during the cutting process and transfers them to a temporary storage column, and a first unloader that precisely places several ring-shaped workpieces positioned on the temporary storage column onto the finished product collection device. This invention automatically processes bar stock into ring-shaped workpieces and automatically unloads them, achieving precise and neat stacking during unloading. It features a high degree of automation, high production efficiency, low labor intensity, and low manual labor requirements.

Description

Technical Field

[0001] This invention relates to the machining of ring-shaped workpieces, specifically to a ring-shaped workpiece machining equipment and production process based on a CNC machine tool. Background Technology

[0002] Ring-shaped workpieces (such as bearing rings and sealing rings) are widely used in the mechanical manufacturing field. Their processing typically involves multiple steps, including turning the outer diameter, end face, grooving, cutting off, and internal hole machining. Traditional processing methods mostly use ordinary machine tools or semi-automated equipment for single-piece or small-batch production, which has the following problems: low automation level, with manual operation required for loading and unloading, workpiece transfer, and finished product stacking. This is not only labor-intensive and inefficient, but also requires highly skilled operators. Especially during grooving and cutting off, the workpiece falls directly into the machine tool after being cut, which is prone to collision and damage. Furthermore, the finished workpiece is easily scratched by metal chips inside the machine tool after falling, affecting workpiece quality. Therefore, this paper proposes a ring-shaped workpiece processing equipment and production process based on CNC machine tools. Summary of the Invention

[0003] The purpose of this invention is to solve the above problems by proposing a ring workpiece processing equipment and production process based on CNC machine tools.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a ring-shaped workpiece processing equipment based on a CNC machine tool, characterized in that it includes a CNC machine tool for processing the workpiece, a robot arm for unloading the processed ring-shaped workpiece, a finished product collection device for storing the ring-shaped workpiece, and a control system for controlling the entire production line. It also includes a temporary storage column installed on the finished product collection device for temporarily storing ring-shaped workpieces; It also includes a feeding mechanism installed on the robotic arm for feeding the completed ring-shaped workpieces. The feeding mechanism includes a second feeding device that feeds and transfers several ring-shaped workpieces that fall on the tool bar during the cutting process of the ring-shaped workpiece by the tool to a temporary storage column, and a first feeding device that clamps several ring-shaped workpieces positioned on the temporary storage column and accurately places them on the finished product collection device.

[0005] More preferably, the unloader includes a chuck mounted on the robotic arm and a plurality of grippers mounted on the chuck for precisely clamping and removing a plurality of annular workpieces held on a temporary storage column. The second unloader includes a clamping cylinder mounted on the robotic arm, a clamping frame mounted on the clamping cylinder, and a clamping block mounted on the clamping frame for removing several annular workpieces hanging on the cutting tool. The clamping block is provided with a clamping surface that limits the position of the annular workpieces.

[0006] More preferably, it also includes a feeding and conveying device for automatically conveying bar stock to a CNC machine tool for processing. The feeding and conveying device includes a material rack, a feeding channel installed on the material rack at an incline, a conveying channel provided on the material rack, a pusher provided on the material rack for temporarily storing the bar stock and conveying it into the conveying channel, and a pusher provided on the material rack for pushing the bar stock in the conveying channel to convey the bar stock into the conveying machine tool. The top feeder includes a lifting cylinder mounted on a feeding frame, a lifting frame mounted on the lifting cylinder, and several top feed plates mounted on the lifting frame; the top of the top feed plates is inclined. The pusher includes a conveyor frame mounted on the loading rack, a pusher frame movably mounted on the conveyor frame, a pusher motor mounted on the pusher frame, a gear mounted on the pusher motor, a rack mounted on the conveyor frame that meshes with the gear, and a pusher component mounted on the pusher frame for pushing the bar stock within the conveyor channel. It also includes sensors installed on the conveyor belt to sense the bar stock inside the conveyor belt.

[0007] Further preferably, it also includes a swing device for blocking several bars arranged on the feeding channel and for conveying the foremost bar to the top feeder; the swing device includes a fixed frame mounted on the feeding frame, a swing cylinder movably mounted on a support frame at one end via a pin, a swing connecting rod movably connected to the swing cylinder, a support frame mounted on the feeding frame, a rotating shaft movably mounted on the support frame and fixedly connected to the swing connecting rod, and a rotating wheel mounted on the rotating shaft, wherein the rotating wheel is provided with an arc-shaped groove adapted to the bar.

[0008] More preferably, the CNC machine tool is equipped with a spindle and chuck through which the bar stock can pass, a feed device installed in the CNC machine tool, a cutter head installed on the feed device, a grooving cutter installed on the cutter head for simultaneously cutting several grooves on the bar stock to form several annular workpieces, and an inner hole cutter installed on the cutter head for turning the inner hole of the bar stock to cut off the several annular workpieces formed.

[0009] A further preferred embodiment includes a mover for moving the robotic arm, the mover comprising a moving frame, a robotic arm base slidably mounted on the moving frame, a second motor mounted on the robotic arm base, a gear mounted on the second motor, and a rack mounted on the moving frame that meshes with the gear.

[0010] More preferably, the finished product collection device includes a feeding and positioning frame, several finished product trolleys positioned on the feeding and positioning frame, a finished product material seat set on the finished product trolleys, a finished product positioning post set on the finished product material seat for positioning and stacking several annular workpieces, and a limiting cylinder set on the finished product material seat outside the finished product positioning post. An annular groove is formed between the finished product positioning post and the limiting cylinder for stacking annular workpieces and for limiting the position of the annular workpieces.

[0011] A further preferred embodiment includes a limiter for defining the position of the finished product trolley at the unloading positioning frame. The limiter includes a limit pin installed on the unloading positioning frame and a positioning component installed on the finished product trolley. The positioning component has a positioning hole that matches the limit pin. It also includes a sensor for sensing whether the finished product trolley has moved to the set position on the unloading positioning frame.

[0012] In a further preferred embodiment, the temporary storage column is set on the unloading and positioning frame.

[0013] A production process for a CNC machining production line for ring-shaped workpieces, characterized by the following: a. Loading: Control the loading conveyor to move the bar stock forward a set distance through the inner hole of the spindle in the CNC machine tool, and then control the chuck to clamp the bar stock. b. Machining: Controlling CNC machine tools to machine the end faces and outer diameters of the bar stock according to the set program; c. Grooving: After the outer diameter and end face are machined, the CNC system in the CNC machine tool controls the grooving tool to cut several grooves on the bar stock simultaneously according to the set program. The bar stock is not cut off when the grooves are cut, leaving a set allowance. d. Internal hole machining and cutting off: The CNC system controls the internal hole cutter to machine the inner hole of the bar stock and cut off several annular workpieces according to the set program. Several annular workpieces that are not clamped by the three-jaw chuck are cut off and hung on the internal hole cutter bar. e. Ring workpiece unloading: The control system controls the robot arm to move the unloader two to the inner hole knife, and controls the unloader two to drive the clamping cylinder to drive the clamping block to clamp several ring workpieces hanging on the inner hole knife and then remove them from the inner hole knife. f. Finished product storage: The control system controls the robotic arm to move the feeder and several clamped annular workpieces to the finished product collection device; g. The control system controls the robot arm to drive the feeder 2 to place the ring-shaped workpiece held by the feeder 2 onto the temporary storage column and release the clamp, thus completing the positioning and placement of the ring-shaped workpiece. h. Then the control system controls the robotic arm to drive the unloader to precisely pick up several ring-shaped workpieces positioned on the temporary storage column and place them into the ring groove to complete the unloading.

[0014] The beneficial effects of this invention are as follows: Through the setting of this device and production process, the bar stock is automatically processed into ring-shaped workpieces and the ring-shaped workpieces are automatically unloaded. During unloading, the workpieces are accurately and neatly stacked. The degree of automation is high, the production efficiency is high, the labor intensity is low, and the manual labor requirement is low. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the material feeding and conveying device in this invention; Figure 3 This is a partial structural schematic diagram of the feeding and conveying device in this invention; Figure 4 This is a partial structural diagram of the actuator in this invention; Figure 5 This is a schematic diagram of the oscillator in this invention; Figure 6 This is a schematic diagram of the structure of the lifting device in this invention; Figure 7 This is a schematic diagram of the robotic arm structure in this invention; Figure 8 This is a partial structural diagram of feeder one and feeder two in this invention; Figure 9 This is a partial cross-sectional structural diagram of the robotic arm in this invention; Figure 10 This is a schematic diagram of the structure of the CNC machine tool in this invention; Figure 11 This is a schematic diagram of the finished product collection device in this invention; Figure 12 This is a schematic diagram of the finished product collection device from another perspective in this invention; Figure 13 This is a schematic diagram of the structure of the limiter in this invention.

[0016] Explanation of reference numerals in the attached drawings: 1. CNC machine tool; 11. Spindle; 12. Chuck; 13. Feed device; 14. Cutter head; 15. Grooving cutter; 16. Internal cutting cutter; 2. Robotic arm; 21. Unloading mechanism; 22. Unloader one; 221. Chuck; 222. Gripper; 23. Unloader two; 231. Clamping cylinder; 232. Clamping frame; 233. Clamping block; 234. Clamping surface; 24. Movers; 25. Moving frame; 26. Robotic arm base; 27. Motor two; 3. Finished product collection device; 31. Unloading and positioning frame; 32. Finished product carriage; 33. Finished product material holder; 34. Finished product positioning column; 341. Limiting cylinder; 35. Limiting pin; 36. Positioning component; 37. Positioning hole; 38. Sensor; 39. Temporary storage column; 4. Feeding and conveying device; 41. Material rack; 42. Conveying channel; 5. Top feeder; 51. Lifting cylinder; 52. Lifting frame; 53. Top plate; 6. Pusher; 61. Conveying frame; 62. Pushing frame; 63. Pushing motor; 64. Gear; 65. Rack; 66. Moving component; 67. Sensor; 7. Swinger; 71. Fixed frame; 72. Swinging cylinder; 73. Swinging connecting rod; 74. Support frame; 75. Rotating shaft; 76. Rotating wheel; 77. Arc groove. Detailed Implementation

[0017] The following description, in conjunction with the accompanying drawings, further illustrates the ring-shaped workpiece machining equipment and production process based on a CNC machine tool according to the present invention.

[0018] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.

[0019] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly; for example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can also mean a mechanical connection, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0020] See Figures 1-13 As shown, a ring-shaped workpiece processing equipment based on a CNC machine tool is characterized by including a CNC machine tool 1 for processing the workpiece, a robot arm 2 for unloading the processed ring-shaped workpiece, a finished product collection device 3 for storing the ring-shaped workpiece, and a control system for controlling the entire production line. It also includes a temporary storage column 39 installed on the finished product collection device 3 for temporarily storing the ring-shaped workpiece; It also includes a feeding mechanism 21 installed on the robot arm 2 for feeding the completed ring workpiece. The feeding mechanism 21 includes a second feeding device 23 for feeding and transferring several ring workpieces that fall on the tool bar during the cutting of the ring workpiece by the tool to the ring groove, and a first feeding device 22 for clamping several ring workpieces positioned on the temporary storage column 39 and accurately placing them on the finished product collection device 3. Through the setup of this device and the production process, the bar stock is automatically processed into ring-shaped workpieces and the ring-shaped workpieces are automatically and accurately stacked. The device has a high degree of automation, high production efficiency, low labor intensity, and low manual labor requirements. The robotic arm 2 is used to remove the finished ring-shaped workpiece from the CNC machine tool 1 and position it on the finished product collection device 3, thereby realizing the automatic and precise positioning and unloading of the ring-shaped workpiece. The finished product collection device 3 is used to collect the processed ring-shaped workpieces in a centralized manner, making it convenient for operators to transfer the ring-shaped workpieces in a centralized manner.

[0021] In one embodiment, the feeder 22 includes a chuck 12 mounted on the robot arm 2 and a plurality of grippers 222 mounted on the chuck 12 for precisely clamping and removing a plurality of annular workpieces on the temporary storage column 39. The chuck 12 on the unloader 22 is a three-jaw chuck 12, which can accurately pick up several ring-shaped workpieces that have been positioned on the temporary storage column 39 and then transfer them through the robot arm 2 and place them directly and accurately on the finished product positioning column 34 of the finished product trolley 32. The unloader 23 includes a clamping cylinder 231 mounted on the robot arm 2, a clamping frame 232 mounted on the clamping cylinder 231, and a clamping block 233 mounted on the clamping frame 232 for removing several annular workpieces hanging on the tool. The clamping block 233 is provided with a clamping surface 234 that limits the position of the annular workpieces. The feeder 23 is used to clamp and unload several annular workpieces hanging on the inner hole cutter 16. The clamping cylinder 231, clamping frame 232, and clamping block 233 are configured to clamp the annular workpieces hanging on the inner hole cutter 16 by retracting the two clamping frames 232 and clamping block 233 driven by the clamping cylinder 231. A conical clamping surface 234 is provided on the clamping block 233 to limit the position of the annular workpieces between the two clamping blocks 233. Simultaneously, when the annular workpieces are clamped by the clamping blocks 233, the retracting clamping blocks 233 guide and position the annular workpieces hanging on the inner hole cutter 16, thus limiting and clamping them between the two clamping blocks 233, allowing all the annular workpieces hanging on the inner hole cutter 16 to be clamped and unloaded.

[0022] In one embodiment, a feeding conveying device 4 for automatically conveying bar stock to a CNC machine tool 1 for processing is also included. The feeding conveying device 4 includes a material rack 41, a feeding channel installed on the material rack 41 and inclined, a conveying channel 42 provided on the material rack 41, a pusher 5 provided on the material rack 41 for temporarily storing bar stock and conveying it into the conveying channel 42, and a pusher 6 provided on the material rack 41 for pushing the bar stock in the conveying channel 42 to convey the bar stock into the conveying machine tool. The inclined feeding channel is used to stack several bars, and the inclined surface is used to automatically move the bars downward. The conveying channel 42 is V-shaped and is used to limit and guide the bar stock as it is conveyed into the CNC machine tool 1. The top feeder 5 includes a lifting cylinder 51 mounted on the feeding frame 41, a lifting frame 52 mounted on the lifting cylinder 51, and a plurality of top feed plates 53 mounted on the lifting frame 52; the top of the top feed plate 53 is inclined. The top feeder 5 is used to lift the bar stock on the top plate 53. During the lifting process, the bar stock rolls down into the conveying channel 42 after exceeding the height of the conveying channel 42 and passing through the inclined surface of the top of the top plate 53, thus playing the role of lifting and conveying the bar stock. The pusher 6 includes a conveyor frame 61 mounted on the feeding frame 41, a pusher frame 62 movably mounted on the conveyor frame 61, a pusher motor 63 mounted on the pusher frame 62, a gear 64 mounted on the pusher motor 63, a rack 65 mounted on the conveyor frame 61 and meshing with the gear 64, and a pusher mounted on the pusher frame 62 for pushing the bar material to be conveyed in the conveying channel 42. With the pusher 6 set, when the bar stock is conveyed into the CNC machine tool 1, the pusher motor 63 is started. The pusher motor 63 drives the gear 64 to rotate. During the rotation, the gear 64 drives the pusher frame to move on the conveyor frame 61 through meshing with the rack 65. The pusher frame then drives the pusher to push against one end of the bar stock and push the bar stock forward along the conveyor channel 42 for feeding. It also includes a sensor 67 installed on the conveying channel 42 for sensing whether there is bar material in the conveying channel 42. The sensor 67 is used to sense whether there is bar material in the conveying channel 42.

[0023] In one embodiment, it further includes an oscillator 7 for blocking several bars arranged on the feeding channel and for conveying the foremost bar to the top feeder 5; the oscillator 7 includes a fixed frame 71 mounted on the feeding frame 41, an oscillating cylinder 72 movably mounted on a support frame 74 at one end via a pin, an oscillating connecting rod 73 movably connected to the oscillating cylinder 72, a support frame 74 mounted on the feeding frame 41, a rotating shaft 75 movably mounted on the support frame 74 and fixedly connected to the oscillating connecting rod 73, and a rotating wheel 76 mounted on the rotating shaft 75, wherein the rotating wheel 76 is provided with an arc groove 77 adapted to the bar; The oscillator 7 is used to limit the position of several bars arranged on the feeding channel, and at the same time, it is used to transfer the bar at the front end of the feeding channel to the lifting plate of the lifting device. When the bar stock is oscillating and feeding via the oscillator 7, the oscillating cylinder 72 is activated. The oscillating cylinder 72 pushes the oscillating connecting rod 73 to rotate, which in turn drives the rotating shaft 75 to rotate. During the rotation of the rotating shaft 75, the rotating wheel 76 rotates. The arc groove 77 on the rotating wheel 76 moves to the arranged bar stock. The bar stock at the foremost position moves into the arc groove 77. Then, the oscillating cylinder 72 is controlled to pull the oscillating connecting rod 73. The oscillating connecting rod 73 drives the rotating shaft 75 and the rotating wheel 76 to rotate in opposite directions. During the rotation of the rotating wheel 76, the bar stock in the arc groove 77 moves. During the continuous rotation of the rotating wheel 76, the bar stock rolls out from the arc groove 77 to the lifting plate, thus realizing the oscillating feeding of the bar stock.

[0024] In one embodiment, the CNC machine tool 1 is equipped with a spindle 11 and a chuck 12 through which bar stock can pass, a feed device 13 disposed in the CNC machine tool 1, a cutter head 14 mounted on the feed device 13, a grooving cutter 15 mounted on the cutter head 14 for simultaneously cutting several grooves into several annular workpieces from the bar stock, and an inner hole cutter 16 mounted on the cutter head 14 for turning the inner hole of the bar stock to cut off the several annular workpieces formed therefrom. One or more grooving cutters 15 can be set on the same tool holder. Multiple grooves can be cut directly in one feed, realizing the cutting and processing of multiple ring-shaped workpieces and improving production efficiency. When cutting the bar stock with the grooving cutter 15, it is not completely cut off, leaving a certain amount of allowance. This avoids the direct cutting of the ring-shaped workpiece, which would fall directly into the CNC machine tool 1 and be picked up manually. The ring-shaped workpiece is then unloaded without manual unloading, which improves production efficiency, reduces labor intensity, and also avoids damage to the ring-shaped workpiece due to collision after it is cut off and falls.

[0025] In one embodiment, it further includes a mover 24 for moving the robotic arm 2. The mover 24 includes a moving frame 25, a robotic arm base 26 slidably mounted on the moving frame 25, a second motor 27 mounted on the robotic arm base 26, a gear 64 mounted on the second motor 27, and a rack 65 mounted on the moving frame 25 and meshing with the gear 64. By setting the mover 24, the robot arm 2 is driven to move, so that one robot arm 2 can supply multiple CNC machine tools 1, thereby eliminating the need to configure a robot arm 2 separately for each CNC machine tool 1 and reducing costs. When the robotic arm 2 moves, the second motor 27 is started. The second motor 27 drives the gear 64 to rotate. The gear 64, through meshing with the rack 65, drives the robotic arm base 26 and the robotic arm 2 to move on the mobile frame 25.

[0026] In one embodiment, the finished product collection device 3 includes a feeding and positioning frame 31, a plurality of finished product trolleys 32 positioned on the feeding and positioning frame 31, a finished product material seat 33 disposed on the finished product trolleys 32, a finished product positioning post 34 disposed on the finished product material seat 33 for positioning and stacking a plurality of annular workpieces, and a limiting cylinder 341 disposed on the finished product material seat 33 outside the finished product positioning post 34. An annular groove is formed between the finished product positioning post 34 and the limiting cylinder 341 for stacking annular workpieces and limiting the position of the annular workpieces. The limiting cylinder 341, in conjunction with the finished product positioning post 34, forms the annular groove, which limits the stacking position of the annular workpieces, thereby enabling the annular workpieces to be neatly stacked in the annular groove; a temporary storage post 39 is disposed on the feeding and positioning frame 31. The temporary storage column 39 is used to temporarily place several ring-shaped workpieces taken by the unloader 23, and at the same time, it positions the ring-shaped workpieces taken by the unloader 23 so that the unloader 22 can accurately clamp the ring-shaped workpieces positioned on the temporary storage column 39 and accurately place them in the ring groove. The unloading and positioning frame 31 is used to limit the position of several finished product carriages 32, ensuring that the robot arm 2 can accurately place the ring-shaped workpieces onto several finished product positioning posts 34 on the finished product carriages 32. The finished product positioning posts 34 are used to position and stack several processed ring-shaped workpieces. During operation, the operator only needs to move the finished product carriages 32 filled with ring-shaped workpieces away and move the empty finished product carriages 32 to the unloading and positioning frame 31.

[0027] In one embodiment, the device further includes a limiter for defining the position of the finished product carriage 32 at the unloading positioning frame 31. The limiter includes a limit pin 35 installed on the unloading positioning frame 31 and a positioning member 36 installed on the finished product carriage 32. The positioning member 36 is provided with a positioning hole 37 that is adapted to the limit pin 35. The device also includes a sensor 38 for sensing whether the finished product carriage 32 has moved to the set position of the unloading positioning frame 31. The limiter is used to limit the position of the finished product trolley 32 at the unloading and positioning frame 31, thereby preventing the robot arm 2 from having difficulty accurately placing several ring-shaped workpieces in the ring groove for finished product unloading. When the position is limited, the limiting pin 35 is inserted into the positioning hole 37 of the positioning member 36 on the finished product trolley 32 to limit the position of the finished product trolley 32. When the finished product trolley 32 is moved out, the limiting pin 35 is first removed from the positioning hole 37 of the positioning member 36 to release the limit. The limit pin 35 can be threaded onto the unloading positioning frame 31 and moved linearly by rotation to be inserted into or removed from the positioning hole 37.

[0028] The manufacturing process of this invention: First, the feeding and conveying device 4 is controlled by the control system to feed the bar stock into the CNC machine tool 1. After one end of the bar stock passes through the inner hole of the spindle 11 inside the CNC machine tool 1, it moves forward a set distance. Then, the chuck 12 is controlled to clamp the bar stock. Then, the CNC machine tool 1 is controlled to machine the end face and outer circle of the bar stock according to the set program. After the outer circle and end face are machined, the CNC system in the CNC machine tool 1 controls the grooving cutter 15 to cut several grooves on the bar stock according to the set program. When grooving, the grooving can be done individually or multiple grooves can be cut simultaneously. The bar stock is not cut off when grooving, leaving a set allowance. Then the CNC system controls the inner hole cutter 16 to process the inner hole of the bar stock according to the set program. During the processing of the inner hole, several annular workpieces are cut off and the annular workpieces are hung on the cutter bar of the inner hole cutter 16 after being cut off. The control system controls the robot arm 2 to move the unloader 23 to the inner hole knife 16, and controls the unloader 23 to drive the clamping cylinder 231 to drive the clamping block 233 to clamp several ring-shaped workpieces hanging on the inner hole knife 16 and then remove them from the inner hole knife 16. Finished product storage: The control system controls the robotic arm 2 to move the feeder 23 and several clamped ring-shaped workpieces to the finished product collection device 3; The control system controls the robot arm 2 to drive the feeder 23 to place the ring-shaped workpiece held by the feeder 23 onto the temporary storage column 39 and release the clamp, thus completing the positioning and placement of the ring-shaped workpiece. Then, the control system controls the robotic arm 2 to drive the unloader 22 to accurately pick up several ring-shaped workpieces positioned on the temporary storage column 39 and place them on the finished product positioning column 34 to complete the unloading. The control system can control the unloader 23 to place several ring-shaped workpieces that have been processed in several times on the temporary storage column 39, and then control the unloader 22 to pick up all the ring-shaped workpieces at once and place them on the finished product positioning column 34.

[0029] The scope of protection of this invention is not limited to the above embodiments and their variations. Conventional modifications and substitutions made by those skilled in the art based on the content of these embodiments are all within the scope of protection of this invention.

Claims

1. A ring-shaped workpiece machining equipment based on a CNC machine tool, characterized in that: It includes a CNC machine tool (1) for processing workpieces, a robot (2) for unloading the processed ring-shaped workpieces, a finished product collection device (3) for storing the ring-shaped workpieces, and a control system for controlling the entire production line. It also includes a temporary storage column (39) set on the finished product collection device (3) for temporarily storing the ring-shaped workpiece; It also includes a feeding mechanism (21) installed on the robot (2) for feeding the completed ring workpiece. The feeding mechanism (21) includes a second feeding device (23) that feeds a number of ring workpieces that fall on the inner hole cutter bar during the cutting of the ring workpiece by the cutter and transfers them to the temporary storage column (39), and a first feeding device (22) that clamps a number of ring workpieces positioned on the temporary storage column (39) and accurately places them on the finished product collection device (3). The CNC machine tool (1) is equipped with a spindle (11) and a chuck (12) through which bar stock can pass, a feed device (13) installed in the CNC machine tool (1), a cutter head (14) installed on the feed device (13), a grooving cutter (15) installed on the cutter head (14) for simultaneously cutting several grooves on the bar stock to form several annular workpieces, and an inner hole cutter (16) installed on the cutter head (14) for turning the inner hole of the bar stock to cut off the several annular workpieces formed.

2. The ring-shaped workpiece machining equipment based on a CNC machine tool according to claim 1, characterized in that: The feeder (22) includes a chuck (12) mounted on the robot (2) and a plurality of grippers (222) mounted on the chuck (12) for precisely clamping and removing a plurality of annular workpieces on a temporary storage column. The second unloader (23) includes a clamping cylinder (231) mounted on the robot (2), a clamping frame (232) mounted on the clamping cylinder (231), and a clamping block (233) mounted on the clamping frame (232) for removing several annular workpieces hanging on the tool. The clamping block (233) is provided with a clamping surface (234) that limits the position of the annular workpieces.

3. The ring-shaped workpiece machining equipment based on a CNC machine tool according to claim 1, characterized in that: It also includes a feeding conveyor (4) for automatically conveying bar stock to a CNC machine tool (1) for processing. The feeding conveyor (4) includes a material rack (41), a feeding channel installed on the material rack (41) at an incline, a conveying channel (42) installed on the material rack (41), a pusher (5) installed on the material rack (41) for temporarily storing bar stock and conveying it to the conveying channel (42), and a pusher (6) installed on the material rack (41) for pushing the bar stock in the conveying channel (42) and conveying it to the conveying machine tool. The top feeder (5) includes a lifting cylinder (51) mounted on the loading frame (41), a lifting frame (52) mounted on the lifting cylinder (51), and a plurality of top feed plates (53) mounted on the lifting frame (52); the top of the top feed plate (53) is inclined. The pusher (6) includes a conveyor frame (61) mounted on the loading rack (41), a pusher frame (62) movably mounted on the conveyor frame (61), a pusher motor (63) mounted on the pusher frame (62), a gear (64) mounted on the pusher motor (63), a rack (65) mounted on the conveyor frame (61) and meshing with the gear (64), and a pusher mounted on the pusher frame (62) for pushing the bar stock to be conveyed in the conveying channel (42); It also includes a sensor (67) installed on the conveyor channel (42) for sensing the bar stock inside the conveyor channel (42).

4. The ring-shaped workpiece machining equipment based on a CNC machine tool according to claim 3, characterized in that: It also includes a swing device (7) for blocking several bars arranged on the feeding channel and for conveying the foremost bar to the top feeder (5); the swing device (7) includes a fixed frame (71) mounted on the feeding frame (41), a swing cylinder (72) movably mounted on the support frame (74) at one end via a pin, a swing connecting rod (73) movably connected to the swing cylinder (72), a support frame (74) mounted on the feeding frame (41), a rotating shaft (75) movably mounted on the support frame (74) and fixedly connected to the swing connecting rod (73), and a rotating wheel (76) mounted on the rotating shaft (75), wherein the rotating wheel (76) is provided with an arc groove (77) adapted to the bar.

5. A ring-shaped workpiece machining equipment based on a CNC machine tool according to claim 1, characterized in that: It also includes a mover (24) for moving the robot (2), the mover (24) comprising a moving frame (25), a robot base (26) slidably mounted on the moving frame (25), a second motor (27) mounted on the robot base (26), a gear (64) mounted on the second motor (27), and a rack (65) mounted on the moving frame (25) and meshing with the gear (64).

6. The ring-shaped workpiece machining equipment based on a CNC machine tool according to claim 1, characterized in that: The finished product collection device (3) includes a feeding and positioning frame (31), a number of finished product trolleys (32) positioned on the feeding and positioning frame (31), a finished product material seat (33) set on the finished product trolley (32), a finished product positioning column (34) set on the finished product material seat (33) for positioning and stacking a number of annular workpieces, and a limiting cylinder (341) set on the finished product material seat (33) outside the finished product positioning column (34). An annular groove is formed between the finished product positioning column (34) and the limiting cylinder (341) for stacking annular workpieces and limiting the position of the annular workpieces.

7. A ring-shaped workpiece machining equipment based on a CNC machine tool according to claim 6, characterized in that: It also includes a limiter for limiting the position of the finished product trolley (32) at the unloading positioning frame (31). The limiter includes a limit pin (35) installed on the unloading positioning frame (31) and a positioning member (36) installed on the finished product trolley (32). The positioning member (36) is provided with a positioning hole (37) that is adapted to the limit pin (35). It also includes a sensor (38) for sensing whether the finished product trolley (32) has moved to the set position of the unloading positioning frame (31).

8. A ring-shaped workpiece machining equipment based on a CNC machine tool according to claim 6, characterized in that: The temporary storage column (39) is set on the unloading positioning frame (31).

9. The production process of a ring-shaped workpiece machining equipment based on a CNC machine tool as described in any one of claims 1-8, characterized in that: The production process is as follows: a. Loading: Control the loading conveyor to move the bar stock forward a set distance through the inner hole of the spindle in the CNC machine tool, and then control the chuck to clamp the bar stock. b. Machining: Controlling CNC machine tools to machine the end faces and outer diameters of the bar stock according to the set program; c. Grooving: After the outer diameter and end face are machined, the CNC system in the CNC machine tool controls the grooving tool to cut several grooves on the bar stock simultaneously according to the set program. The bar stock is not cut off when the grooves are cut, leaving a set allowance. d. Internal hole machining and cutting off: The CNC system controls the internal hole cutter to machine the inner hole of the bar stock and cut off several annular workpieces according to the set program. Several annular workpieces that are not clamped by the chuck are cut off and hung on the cutter bar of the internal hole cutter. e. Ring workpiece unloading: The control system controls the robot arm to move the unloader two to the inner hole knife, and controls the unloader two to drive the clamping cylinder to drive the clamping block to clamp several ring workpieces hanging on the inner hole knife and then remove them from the inner hole knife. f. Finished product storage: The control system controls the robotic arm to move the feeder and several clamped annular workpieces to the finished product collection device; g. The control system controls the robot arm to drive the feeder 2 to place the ring-shaped workpiece held by the feeder 2 onto the temporary storage column and release the clamp, thus completing the positioning and placement of the ring-shaped workpiece. h. Then the control system controls the robotic arm to drive the unloader to accurately pick up several ring-shaped workpieces positioned on the temporary storage column and place them into the ring groove to complete the unloading.

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