A numerical control lathe feeding mechanism for shaft product machining

Abstract

The utility model discloses a numerical control lathe feeding mechanism for shaft product processing relates to shaft product processing technical field, including feeding frame, transmission mechanism, conveyer belt, the one end of feeding frame is provided with the positioning cooling subassembly, and the drive motor utilizes the shaft coupling drive screw rotation to drive first sliding block, second sliding block linear sliding motion in the guide rail inboard surface, realizes the use position of driving the blast pipe and lower limit ring, upper limit ring, and the blast engine drive air storage pipe, blast pipe carries out the cooling heat dissipation work to the shaft of conveyance, avoids the temperature to be too high and is inconvenient later -stage processing, and two real objects can hold fixed two blast pipes, and the first trapezoidal mounting block, second trapezoidal mounting block set up to the positioning effect of the connection of lower limit ring, upper limit ring, and the connection stability of first trapezoidal mounting block, second trapezoidal mounting block is improved to the telescopic link, and lower limit ring, upper limit ring can play the limit when the axle convey, improve the feeding stability.

Description

Technical Field

[0001] This utility model relates to the field of shaft product processing technology, and in particular to a CNC lathe feeding mechanism for shaft product processing. Background Technology

[0002] In modern shaft parts production lines, especially for complex shaft parts that require multiple processing steps (such as turning, grinding, quenching, etc.), processing efficiency and processing quality are of paramount importance.

[0003] A patent with publication number CN104831031B discloses an automatic feeding mechanism for quenching shaft-type workpieces. The mechanism involves horizontally placing the shaft-type workpieces to be quenched into a discharge box, allowing them to be fed one by one into the quenching station. This achieves automatic feeding of shaft-type workpieces, resulting in a high level of automation and improved quenching production efficiency. Furthermore, the automatic feeding mechanism utilizes a material box and feeding slide rail assembly to transform horizontally placed shaft-type workpieces into an upright position for quenching, thus avoiding the slight bending deformation caused by traditional horizontal quenching and improving the quenching quality of the shaft-type workpieces. However, this patent still has the following problems: During CNC turning, the workpiece is continuously fed or heated during machining, causing its temperature to rise continuously. Excessive temperature not only affects tool life and wear rate, reducing machining accuracy, but can also alter the workpiece's material properties, impacting the quality of subsequent processes (such as finishing, grinding, and even final heat treatment). For long shaft-like workpieces with a length much greater than their diameter, the workpiece's inherent rigidity is poor, making it prone to vibration or bending under cutting forces. This not only affects the surface roughness but can also, in severe cases, lead to workpiece scrap or damage to the machine tool.

[0004] To address the above issues, a feeding mechanism for CNC lathes used in the machining of shaft products needs to be designed to overcome these problems. Utility Model Content

[0005] The main objective of this invention is to provide a feeding mechanism for CNC lathes used in the machining of shaft products, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A feeding mechanism for a CNC lathe used for machining shaft products includes a feeding frame, a transmission mechanism, and a conveyor belt, wherein a positioning and cooling assembly is provided at one end of the feeding frame; The positioning and cooling assembly includes a guide rail disposed at one end of the feeding rack, a drive motor mounted at one end of the feeding rack, a lead screw connected to the output end of the drive motor via a coupling, a first slider and a second slider respectively connected to the outer wall of the lead screw, a support arm connected to the end of the first slider away from the guide rail, an adjusting arm connected to the end of the support arm away from the first slider, a reinforcing plate connected to the end of the adjusting arm away from the support arm, an air storage box connected to the end of the reinforcing plate away from the adjusting arm, a blower connected to one end of the air storage box, an air storage pipe connected to one end of the reinforcing plate, a clamping frame connected to the end of the air storage pipe away from the reinforcing plate, and a blower pipe clamped to the inner side of the clamping frame.

[0007] As a preferred embodiment of this utility model, an adjustment groove is provided on the top of each of the two guide rails. A connecting rod is connected to one side of the first slider and the second slider that passes through the guide rail. The end of the connecting rod away from the guide rail is respectively connected to a first trapezoidal mounting block and a second trapezoidal mounting block. A lower limit ring is connected to the bottom of the adjacent first trapezoidal mounting block and the second trapezoidal mounting block. An upper limit ring is connected to the top of the adjacent first trapezoidal mounting block and the second trapezoidal mounting block. A reinforcing telescopic rod is connected to one end of the adjacent first trapezoidal mounting block and the second trapezoidal mounting block.

[0008] In a preferred embodiment of this utility model, the drive motor is connected to the lead screw via a coupling, and the lead screw is rotatably connected to the first slider and the second slider, which are slidably connected to the inner side of the guide rail.

[0009] As a preferred embodiment of this utility model, the first slider is threadedly fixedly connected to the support arm, the support arm is threadedly fixedly connected to the adjusting arm, the adjusting arm is fixedly connected to the reinforcing plate, the reinforcing plate is fixedly connected to the air storage box, and the reinforcing plate is fixedly connected to one end of the second slider.

[0010] As a preferred embodiment of this utility model, the air storage box and the air storage pipe are internally interconnected, the air storage pipe passes through the clamping frame and is movably connected to the blower pipe, and the blower pipe is snapped into the inner side of the clamping frame.

[0011] As a preferred embodiment of this utility model, the side of the connecting rod that passes through the guide rail is rotatably connected to one end of the first slider and the second slider, respectively, and the connecting rod is rotatably connected to the first trapezoidal mounting block and the second trapezoidal mounting block.

[0012] As a preferred embodiment of this utility model, the first trapezoidal mounting block and the second trapezoidal mounting block are respectively threadedly fixedly connected to the lower limit ring and the upper limit ring, and adjacent first trapezoidal mounting blocks and second trapezoidal mounting blocks are rotatably connected to the reinforcing telescopic rod.

[0013] Beneficial effects Compared with the prior art, the present invention has the following beneficial effects: This CNC lathe feeding mechanism for machining shaft products uses a drive motor to drive a lead screw through a coupling, which in turn drives the first and second sliders to slide linearly on the inner side of the guide rail. This drives the air pipes and the lower and upper limit rings to their positions. The blower drives the air storage pipes and air pipes to cool and dissipate heat from the conveyed shafts, preventing overheating that would hinder subsequent processing. Two physical components can clamp and fix the two air pipes. The first and second trapezoidal mounting blocks provide positioning for the connection of the lower and upper limit rings. The reinforcing telescopic rod improves the connection stability of the first and second trapezoidal mounting blocks. The lower and upper limit rings limit the movement of the shafts during conveying, improving feeding stability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the installation structure of the support arm and adjusting arm of this utility model; Figure 3 This is a schematic diagram of the installation structure of the first trapezoidal mounting block and the second trapezoidal mounting block of this utility model; Figure 4 This is a schematic diagram of structure A of this utility model; Figure 5 This is a schematic diagram of the installation structure of the lower limit ring and the upper limit ring of this utility model.

[0015] In the diagram: 1. Feeding rack; 2. Transmission mechanism; 3. Conveyor belt; 4. Guide rail; 5. Drive motor; 6. Lead screw; 7. First slider; 8. Second slider; 9. Support arm; 10. Adjusting arm; 11. Reinforcing plate; 12. Air storage box; 13. Blower; 14. Air storage pipe; 15. Clamping frame; 16. Blower pipe; 17. Adjusting groove; 18. Connecting rod; 19. First trapezoidal mounting block; 20. Second trapezoidal mounting block; 21. Lower limit ring; 22. Upper limit ring; 23. Reinforcing telescopic rod. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0017] like Figures 1-5 As shown, a CNC lathe feeding mechanism for machining shaft products includes a feeding frame 1, a transmission mechanism 2, and a conveyor belt 3. One end of the feeding frame 1 is provided with a positioning and cooling assembly. The positioning cooling assembly includes a guide rail 4 at one end of the feeding rack 1, a drive motor 5 at one end of the feeding rack 1, a lead screw 6 connected to the output end of the drive motor 5 via a coupling, a first slider 7 and a second slider 8 connected to the outer wall of the lead screw 6 respectively, a support arm 9 connected to the end of the first slider 7 away from the guide rail 4, an adjusting arm 10 connected to the end of the support arm 9 away from the first slider 7, a reinforcing plate 11 connected to the end of the adjusting arm 10 away from the support arm 9, an air storage box 12 connected to the end of the reinforcing plate 11 away from the adjusting arm 10, a blower 13 connected to the end of the air storage box 12, an air storage pipe 14 connected to the end of the reinforcing plate 11, a clamping frame 15 connected to the end of the air storage pipe 14 away from the reinforcing plate 11, and a blower pipe 16 clamped to the inner side of the clamping frame 15. The drive motor 5 is connected to the lead screw 6 via a coupling. The lead screw 6 is rotatably connected to the first slider 7 and the second slider 8. The first slider 7 and the second slider 8 are slidably connected on the inner side of the guide rail 4. The first slider 7 is threadedly fixed to the support arm 9. The support arm 9 is threadedly fixed to the adjusting arm 10. The adjusting arm 10 is fixedly fixed to the reinforcing plate 11. The reinforcing plate 11 is fixedly fixed to the air storage box 12. The reinforcing plate 11 is fixedly fixed to one end of the second slider 8. The air storage box 12 and the air storage pipe 14 are internally interconnected. The air storage pipe 14 passes through the clamping frame 15 and is movably connected to the blower pipe 16. The blower pipe 16 is snapped into the inner side of the clamping frame 15. Specifically, a drive motor 5 is installed at one end of the guide rail 4 to achieve precise position control. The motor 5 is connected to one end of the lead screw 6 through a high-precision coupling. The lead screw 6 is preferably a ball screw to achieve high-efficiency and high-precision conversion from rotary motion to linear motion. The other end of the lead screw 6 is supported on the feed frame 1 by a bearing assembly to ensure stable rotation. The first slider 7 and the second slider 8 are respectively sleeved on the lead screw 6 and can slide on the guide rail 4. The two sliders are threadedly connected to the lead screw 6 by nuts. When the lead screw rotates, they will synchronously perform linear reciprocating motion along the guide rail 4. One end of each slider is rotatably connected to one end of a connecting rod 18 through a bearing or shaft pin. The connecting rod 18 passes through the adjustment groove 17 at the top of the guide rail 4, and the other end is rotatably connected to the first trapezoidal mounting block 19 and the second trapezoidal mounting block 20 respectively. A blower 13 is installed at an appropriate position on the feeding rack 1. The air outlet of the blower 13 is connected to an air storage pipe 14. The air storage pipes 14 are interconnected to form a pressure stabilizing chamber. Multiple small holes or connection ports are opened on the side or bottom of the air storage pipe 14. One end of the blower pipe 16 is connected to the air storage pipe 14 by a movable connection such as a snap-fit ​​or threaded connection. The other end is snapped into the inner side of the clamping frame 15 to ensure that the blower pipe 16 will not fall off or swing excessively during the movement. The end of the blower pipe 16 is close to the upper limit ring 22 and the lower limit ring 21. Its air outlet direction is towards the surface of the workpiece. When the limit rings approach or contact the workpiece, the blower pipe 16 also approaches the workpiece accordingly to directly blow air to cool the surface of the workpiece being turned or about to be turned. When the drive motor 5 starts, the lead screw 6 rotates, driving the first and second sliders 7 and 8 to move along the guide rail 4. The connecting rod 18 transmits the motion to the first trapezoidal mounting block 19 and the second trapezoidal mounting block 20. The trapezoidal mounting blocks drive the upper limit ring 22 and the lower limit ring 21 to move together, axially limiting the workpiece. At the same time, the reinforcing telescopic rod 23 connected to the trapezoidal mounting block extends when it reaches the working position, locking the two mounting blocks and enhancing the overall rigidity. As the limit rings approach the workpiece, the blower pipe 16, which moves synchronously with them, also begins to cool the workpiece. When the limit rings stably lock the workpiece, the spindle of the CNC lathe begins to rotate and perform cutting. The cooling air continues to act, carrying away the cutting heat and frictional heat. After the machining is completed, the motor reverses its drive, and the entire assembly retracts to prepare for the next workpiece.

[0018] Both guide rails 4 have adjustment grooves 17 on their tops. The first slider 7 and the second slider 8 are connected to a connecting rod 18 through one side of the guide rail 4. The end of the connecting rod 18 away from the guide rail 4 is connected to the first trapezoidal mounting block 19 and the second trapezoidal mounting block 20 respectively. The bottom of the adjacent first trapezoidal mounting block 19 and the second trapezoidal mounting block 20 is connected to a lower limit ring 21. The top of the first trapezoidal mounting block 19 and the second trapezoidal mounting block 20 is connected to an upper limit ring 22. The end of the adjacent first trapezoidal mounting block 19 and the second trapezoidal mounting block 20 is connected to a reinforcing telescopic rod 23. One side of the connecting rod 18 passing through the guide rail 4 is rotatably connected to one end of the first slider 7 and the second slider 8, respectively. The connecting rod 18 is rotatably connected to the first trapezoidal mounting block 19 and the second trapezoidal mounting block 20. The first trapezoidal mounting block 19 and the second trapezoidal mounting block 20 are respectively threadedly fixed to the lower limit ring 21 and the upper limit ring 22. Adjacent first trapezoidal mounting blocks 19 and second trapezoidal mounting blocks 20 are rotatably connected to the reinforcing telescopic rod 23. Specifically, the first trapezoidal mounting block 19 and the second trapezoidal mounting block 20 increase the contact area with the limit rings 21 and 22 or facilitate installation. They are connected to the lower limit ring 21 and the upper limit ring 22 through threaded holes. The operator can quickly adjust the axial position and spacing of the limit rings by tightening or loosening the threaded connectors to adapt to shaft workpieces of different lengths. The lower limit ring 21 and the upper limit ring 22 are usually made of wear-resistant materials such as engineering plastics or aluminum alloys, with an inner diameter slightly larger than the workpiece diameter so that they can be fitted onto the workpiece. Their main function is to restrict the axial movement of the workpiece from both the top and bottom directions during workpiece transport and processing, ensuring that the workpiece has a stable axial position in the turning area. Between the adjacent first trapezoidal mounting block 19 and second trapezoidal mounting block 20, a reinforcing telescopic rod 23 is installed. This rod can be in the form of a cylinder, hydraulic cylinder, or electric push rod, etc., and has a telescopic function. When the slider moves to the working position, it connects and locks the two trapezoidal mounting blocks to form a rigid whole, preventing the limiting ring from swinging relative to the workpiece weight or processing force, thereby improving positioning accuracy and stability.

[0019] It should be noted that this utility model is a CNC lathe feeding mechanism for machining shaft products. In use, the shaft workpiece to be processed is first placed on the conveyor belt 3 of the feeding frame 1. The conveyor belt 3 is responsible for initially feeding the workpiece into the processing area of ​​the mechanism. When the workpiece reaches the working area of ​​the positioning and cooling component, the lower limit ring 21 and the upper limit ring 22 start to play their role. These two limit rings are connected to the connecting rod 18 through the first trapezoidal mounting block 19 and the second trapezoidal mounting block 20, and move together with the connecting rod. They initially limit the axial position of the workpiece from the upper and lower directions to prevent the workpiece from axially shifting during subsequent conveying and processing, thus providing a basis for precise machining. Drive motor 5 starts and drives lead screw 6 to rotate via coupling. The rotational motion of lead screw 6 is converted into linear sliding motion of first slider 7 and second slider 8 on the inner side of guide rail 4 through thread transmission. The two sliders move synchronously to ensure smoothness and synchronization of movement. First slider 7 is connected to the positioning and cooling assembly, including air storage box 12, blower 13, air storage pipe 14, clamping frame 15, and blower pipe 16, through support arm 9, adjusting arm 10, and reinforcing plate 11. Second slider 8 is directly or through reinforcing plate 11 connected to the other side of the positioning and cooling assembly. Part of the connection is such that the rotation of the lead screw drives the entire positioning and cooling assembly to move linearly along the guide rail 4, thereby conveying the workpiece. During the conveying process, the blower 13 works continuously. The airflow generated by the blower 13 first enters the air storage box 12 connected to it, and then is transmitted through the air storage pipe 14. The end of the air storage pipe 14 is connected to the clamping frame 15. The air storage pipe 16 is clamped in the clamping frame 15. The airflow enters the air storage pipe 16 through the air storage pipe 14. The design of the air storage pipe 16 enables it to directly guide the airflow to the surface of the shaft workpiece being conveyed and processed. As the workpiece is conveyed, the lower limit ring 21 and the upper limit ring 22 continuously clamp the workpiece from below and above, providing axial support and limiting, which can prevent it from bending or vibrating when rotating or under force. The first trapezoidal mounting block 19 and the second trapezoidal mounting block 20 are connected to the lower and upper limit rings by threads, providing a stable mounting base. The reinforcing telescopic rod 23 is connected between adjacent trapezoidal mounting blocks, increasing the rigidity of the entire limiting structure during movement, preventing the limiting rings from swinging relative to each other when under force, and further improving the limiting accuracy and stability. The support arm 9 and the adjusting arm 10, or the clamping frame 15, etc., clamp and fix the blower pipe 16, ensuring the accurate guidance of the cooling airflow.

[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A feeding mechanism for a CNC lathe used for machining shaft products, comprising a feeding frame (1), a transmission mechanism (2), and a conveyor belt (3), characterized in that: One end of the feeding rack (1) is provided with a positioning and cooling component; The positioning and cooling assembly includes a guide rail (4) disposed at one end of the feeding rack (1). A drive motor (5) is mounted at one end of the feeding rack (1). The output end of the drive motor (5) is connected to a lead screw (6) via a coupling. A first slider (7) and a second slider (8) are respectively connected to the outer wall of the lead screw (6). A support arm (9) is connected to the end of the first slider (7) away from the guide rail (4). An adjusting arm (10) is connected to the end of the support arm (9) away from the first slider (7). The adjusting arm (10) is connected to a reinforcing plate (11) at one end away from the supporting arm (9). The reinforcing plate (11) is connected to a accumulator box (12) at one end away from the adjusting arm (10). The accumulator box (12) is connected to a blower (13) at one end. The reinforcing plate (11) is connected to an accumulator pipe (14) at one end. The accumulator pipe (14) is connected to a clamping frame (15) at one end away from the reinforcing plate (11). The inner side of the clamping frame (15) is clamped to a blower pipe (16).

2. The feeding mechanism for a CNC lathe used in machining shaft products according to claim 1, characterized in that: The top of each of the two guide rails (4) is provided with an adjustment groove (17). The first slider (7) and the second slider (8) are connected to a connecting rod (18) through one side of the guide rail (4). The end of the connecting rod (18) away from the guide rail (4) is connected to a first trapezoidal mounting block (19) and a second trapezoidal mounting block (20) respectively. The bottom of the adjacent first trapezoidal mounting block (19) and the second trapezoidal mounting block (20) is connected to a lower limit ring (21). The top of the first trapezoidal mounting block (19) and the second trapezoidal mounting block (20) is connected to an upper limit ring (22). The end of the adjacent first trapezoidal mounting block (19) and the second trapezoidal mounting block (20) is connected to a reinforcing telescopic rod (23).

3. The feeding mechanism for a CNC lathe used in machining shaft products according to claim 1, characterized in that: The drive motor (5) is connected to the lead screw (6) via a coupling. The lead screw (6) is rotatably connected to the first slider (7) and the second slider (8). The first slider (7) and the second slider (8) are slidably connected to the inner side of the guide rail (4).

4. A CNC lathe feeding mechanism for machining shaft products according to claim 1, characterized in that: The first slider (7) is threadedly fixed to the support arm (9), the support arm (9) is threadedly fixed to the adjustment arm (10), the adjustment arm (10) is fixedly fixed to the reinforcing plate (11), the reinforcing plate (11) is fixedly fixed to the air storage box (12), and the reinforcing plate (11) is fixedly fixed to one end of the second slider (8).

5. A feeding mechanism for a CNC lathe used in machining shaft products according to claim 1, characterized in that: The air storage box (12) and the air storage pipe (14) are interconnected. The air storage pipe (14) passes through the clamping frame (15) and is movably connected to the blower pipe (16). The blower pipe (16) is snapped into the inner side of the clamping frame (15).

6. A CNC lathe feeding mechanism for machining shaft products according to claim 2, characterized in that: The connecting rod (18) passes through the guide rail (4) and is rotatably connected to one end of the first slider (7) and the second slider (8), respectively. The connecting rod (18) is rotatably connected to the first trapezoidal mounting block (19) and the second trapezoidal mounting block (20).

7. A feeding mechanism for a CNC lathe used in machining shaft products according to claim 2, characterized in that: The first trapezoidal mounting block (19) and the second trapezoidal mounting block (20) are respectively threadedly fixed to the lower limit ring (21) and the upper limit ring (22), and adjacent first trapezoidal mounting blocks (19) and second trapezoidal mounting blocks (20) are rotatably connected to the reinforcing telescopic rod (23).

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