A camshaft machining drilling and tapping device

Abstract

This invention discloses a drilling and tapping device for camshaft machining, including a camshaft machining table and two clamping and stabilizing components. A camshaft machining placement frame is horizontally fixed at the center of the camshaft machining table. Three machining tools are symmetrically arranged on both sides of the camshaft machining placement frame. This invention, by setting a loading box above the camshaft machining placement frame that can store a certain number of camshafts, allows for automatic gripping and clamping of the camshafts during continuous drilling and tapping. Then, by engaging two positioning rods with the first and second conical positioning grooves, the clamped camshafts can be positioned and engaged with the three machining tools, ensuring good coaxiality of the camshafts during drilling and tapping. This ensures machining quality while facilitating loading and unloading, reducing cumbersome operations during machining.

Description

Technical Field

[0001] This invention relates to the field of drilling and tapping combination machine tool technology, and in particular to a drilling and tapping device for camshaft machining. Background Technology

[0002] The camshaft is a core transmission component of an internal combustion engine. It consists of a cam, a shaft, and other structures. It controls the opening and closing of the engine valves through the regular movement of the cam profile, precisely controlling the intake and exhaust timing. At the same time, it can drive auxiliary mechanisms such as the oil pump to ensure stable engine operation. Camshafts are produced by direct casting. After casting, the base part needs to be machined, drilled, and tapped at both ends before subsequent processing. Currently, existing combination machine tools for turning, drilling, and tapping camshaft ends use a central movable stand to clamp the camshaft. The camshaft then passes sequentially through turning, drilling, and tapping tools located at both ends. The coaxiality of drilling and tapping is directly related to the accuracy of the movable stand. When deviations occur, the machining tools at both ends move in a linear direction, making position adjustment difficult and potentially resulting in poor coaxiality accuracy. Furthermore, before machining camshafts, workers or robotic arms need to pick up the camshaft and place it in the clamping position, which can lead to inconvenience from frequent manual operations and issues related to the cost and maintenance of robotic arms.

[0003] Therefore, how to provide a drilling and tapping device for camshaft machining is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] One objective of this invention is to provide a drilling and tapping device for camshaft machining, which can solve the problems of coaxial accuracy adjustment and material loading convenience in camshaft tapping.

[0005] A drilling and tapping device for camshaft machining according to an embodiment of the present invention includes: A shaft processing machine table is provided, with a shaft processing placement frame fixed horizontally at the center of the machine table. Three processing tools are symmetrically arranged on both sides of the shaft processing placement frame. A feeding assembly is provided on one side of the upper end of the shaft processing placement frame. The feeding assembly includes a feeding box and four guide bars. Two positioning bars are horizontally arranged at the upper end of the shaft processing placement frame. A camshaft is placed on the two positioning bars. The feeding assembly is used to guide the camshaft to be placed on the positioning bars. Two clamping and stabilizing components are movably inserted into the shaft machining placement frame via a movable positioning component. Each clamping and stabilizing component includes a first piston rod and two L-shaped clamping plates. The clamping and stabilizing components clamp and fix the camshaft. The movable positioning component includes a movable control beam and two positioning rods. The movable positioning component is used for the horizontal position movement of the camshaft and the fine-tuning of the camshaft's position.

[0006] Preferably, the loading box is vertically mounted on one side of the upper end of the shaft processing placement frame by bolts, and four guide bars are vertically and symmetrically arranged on both sides inside the loading box. The width between two adjacent guide bars is greater than the shaft diameter of the camshaft, and the guide bars are located directly above the positioning bars.

[0007] Preferably, the upper end of the movable control beam is horizontally fixed with a clamping mounting seat by bolts. The upper end of the clamping mounting seat is provided with a storage groove. The upper end of the movable control beam located in the storage groove is provided with a first piston groove. The first piston rod is vertically and movably inserted into the upper side of the first piston groove. The upper end of the first piston rod is vertically and movably inserted into the storage groove and is provided with a movable control plate. The lower end of the first piston rod located in the first piston groove is provided with a clamping piston. A clamping spring is sleeved between the clamping piston and the clamping mounting seat.

[0008] Preferably, the upper end of each of the active control plates is horizontally provided with two clamping control rods via support blocks. Clamping reference blocks are vertically provided on both sides of the center of the storage groove. A reference connecting shaft is horizontally provided at the upper end between the two clamping reference blocks. The lower end of one side of each of the two L-shaped clamping plates is movably sleeved with the reference connecting shaft. The upper end of each of the two L-shaped clamping plates has an arc-shaped structure. One side of the arc-shaped structure of each of the two L-shaped clamping plates clamps the shaft body of the camshaft. A strip-shaped guide groove is provided on the side of the L-shaped clamping plate away from the reference connecting shaft. The two L-shaped clamping plates are movably sleeved with clamping control rods via the strip-shaped guide grooves.

[0009] Preferably, a three-way pipe is horizontally provided below the moving control beam, and a combined slot hole is opened through the lower end of the first piston groove through the moving control beam, and the two ends of the three-way pipe are respectively connected to the two combined slot holes.

[0010] Preferably, the inner side of the shaft processing placement frame is provided with horizontal guide grooves, and the two sides of the moving control beam are respectively horizontally slidably inserted into the two horizontal guide grooves. Elastic rubber pads are embedded on the upper and lower sides of the horizontal guide grooves, and the upper and lower sides of the moving control beam are in contact with the elastic rubber pads respectively.

[0011] Preferably, the center of the moving control beam has a square hole, the lead screw connecting sleeve is inserted into the square hole, the center of the shaft processing placement frame is horizontally connected to the drive lead screw through the bearing, the lead screw connecting sleeve is set to drive the lead screw through the lead screw thread, and the lead screw connecting sleeve is located in the square hole and is fitted with a surrounding rubber sleeve.

[0012] Preferably, a second piston groove is provided at the center of both ends of the moving control beam. A guide ring is provided on one side of each second piston groove. A second piston rod is movably inserted through the center of the guide ring. Two positioning rods are located in the two second piston grooves and connected to the second piston rods. The end of the positioning rod facing the outside of the moving control beam is tapered. When the positioning rod is retracted into the second piston groove, the guide ring contacts one side of the positioning rod.

[0013] Preferably, the side of the second piston groove away from the positioning rod is connected to the first piston groove and has a transfer air groove. The side of the second piston rod near the transfer air groove is provided with a positioning piston. The second piston rod is fitted with a positioning spring between the positioning piston and the guide ring.

[0014] Preferably, the horizontal guide groove has an adaptation groove on the side near the loading box, and two support slide rods are horizontally arranged in each adaptation groove. A movable calibration block is movably sleeved on the two support slide rods. A return spring is sleeved on the side of the support slide rod away from the loading box. One side of the return spring abuts against the movable calibration block. A first conical positioning groove is opened at the center of one side of the movable calibration block. A second conical positioning groove is opened on both sides of the horizontal guide groove, corresponding to two of the cutting tools. The length of the adaptation groove is greater than the moving distance of the moving control beam from the first cutting tool.

[0015] The beneficial effects of this invention are: This invention features a loading box above a shaft machining placement rack capable of storing a certain number of camshafts. During continuous drilling and tapping of the camshafts, the L-shaped clamping plate of the clamping and stabilizing assembly and the moving control beam of the moving positioning assembly enable automatic gripping and clamping of the camshafts. Then, by engaging two positioning rods with the first and second conical positioning slots, the clamped camshafts can be positioned and engaged with three machining tools, ensuring good coaxiality of the camshafts during drilling and tapping. This ensures machining quality while facilitating loading and unloading, reducing cumbersome operations during processing. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of a drilling and tapping device for camshaft machining proposed in this invention; Figure 2 This is a schematic diagram of the mounting structure of a shaft machining placement frame for a drilling and tapping equipment for camshaft machining proposed in this invention; Figure 3This is a schematic diagram of the mating structure between the camshaft and the shaft machining placement frame in a drilling and tapping device for camshaft machining proposed in this invention; Figure 4 This is a partial side section diagram of a drilling and tapping device for camshaft machining proposed in this invention; Figure 5 This invention proposes a drilling and tapping device for camshaft machining. Figure 4 A schematic diagram of the structure of part A; Figure 6 This is a schematic diagram of the disassembled structure of the moving control beam and camshaft of a drilling and tapping device for camshaft machining proposed in this invention; Figure 7 This is a side sectional view of the control connection of the L-shaped clamping plate in the drilling and tapping equipment for camshaft machining proposed in this invention. Figure 8 This invention proposes a drilling and tapping device for camshaft machining. Figure 7 A schematic diagram of the structure of part B; Figure 9 This is a side sectional view of the connection structure of the positioning insert rod of the drilling and tapping equipment for camshaft machining proposed in this invention; Figure 10 This invention proposes a drilling and tapping device for camshaft machining. Figure 9 A schematic diagram of the structure of part C; Figure 11 This is a schematic diagram of the disassembled structure of the L-shaped clamping plate and the moving control beam of the drilling and tapping equipment for camshaft machining proposed in this invention.

[0017] In the diagram: 1. Shaft processing machine stand; 2. Shaft processing placement rack; 3. Loading box; 4. Positioning strip; 5. Guide strip; 6. Camshaft; 7. Horizontal guide groove; 8. Moving control beam; 9. Lead screw connecting sleeve; 10. Drive lead screw; 11. Clamping mounting base; 12. Storage groove; 13. First piston groove; 14. First piston rod; 15. Movable control plate; 16. Clamping reference block; 17. Reference connecting shaft; 18. L-shaped clamping plate; 19. Strip guide groove; 20. Clamping control rod; 21. Clamping spring; 22. Second piston groove; 23. Second piston rod; 24. Positioning insert rod; 25. Positioning piston; 26. Positioning spring; 27. Adapter air groove; 28. Adaptation groove; 29. ​​Support slide rod; 30. Movable calibration block; 31. Return spring; 32. First conical positioning groove; 33. Surrounding rubber sleeve; 34. Elastic rubber pad; 35. T-pipe; 36. Second conical positioning groove. Detailed Implementation

[0018] 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 invention, and therefore only show the components relevant to the invention.

[0019] refer to Figure 1 and Figure 2 A drilling and tapping device for camshaft machining includes a camshaft machining machine 1. A camshaft machining placement frame 2 is fixedly mounted horizontally at the center of the camshaft machining machine 1. Three machining tools are symmetrically arranged on both sides of the camshaft machining placement frame 2. A feeding assembly is provided on the upper side of the camshaft machining placement frame 2. The feeding assembly includes a feeding box 3 and four guide bars 5. Two positioning bars 4 are horizontally arranged on the upper end of the camshaft machining placement frame 2. Camshafts 6 are placed on the two positioning bars 4. The feeding assembly is used to guide the camshafts 6 to be placed on the positioning bars 4. The feeding box 3 is vertically mounted on the upper side of the camshaft machining placement frame 2 by bolts. The four guide bars 5 are vertically symmetrically arranged on both sides inside the feeding box 3. The width between two adjacent guide bars 5 is greater than the shaft diameter of the camshaft 6, and the guide bars 5 are located directly above the positioning bars 4. Multiple camshafts 6 can be horizontally placed inside the feeding box 3. When the lowermost camshaft 6 is horizontally pulled away along the positioning bars 4, the uppermost camshafts 6 will automatically fall down.

[0020] Please refer to Figure 3 , Figure 6 , Figure 7 and Figure 8 Two clamping and stabilizing components are set up to clamp and fix the camshaft 6 during machining. The two clamping and stabilizing components are movably inserted into the shaft machining placement frame 2 through a moving positioning component. Each clamping and stabilizing component includes a first piston rod 14 and two L-shaped clamping plates 18. The clamping and stabilizing components clamp and fix the camshaft 6. The moving positioning component includes a moving control beam 8 and two positioning rods 24. The moving positioning component is used for the horizontal position movement of the camshaft 6 and the fine adjustment of the position positioning of the camshaft 6. The upper end of the moving control beam 8 is horizontally fixed with a clamping mounting seat 11 by bolts. The upper end of the clamping mounting seat 11 is provided with a storage groove 12. The upper end of the moving control beam 8 located in the storage groove 12 is provided with a first piston groove 13. The piston rod 14 is vertically and movably inserted into the upper side of the first piston groove 13. The upper end of the first piston rod 14 is vertically and movably inserted into the receiving groove 12 and is provided with a movable control plate 15. The lower end of the first piston rod 14 located in the first piston groove 13 is provided with a clamping piston. A clamping spring 21 is sleeved between the clamping piston and the clamping mounting seat 11. When high-pressure gas is introduced into the lower part of the first piston groove 13, the first piston rod 14 will rise upward, and the clamping piston located in the first piston groove 13 will squeeze the clamping spring 21. The clamping mounting seat 11 and the moving control beam 8 are detachable, which facilitates the inspection and maintenance of the piston position in the future. The clamping piston is a common wear-resistant rubber piston.

[0021] Please refer to Figure 8 and Figure 11The upper end of the movable control plate 15 is horizontally provided with two clamping control rods 20 via support blocks. Clamping reference blocks 16 are vertically provided on both sides of the center of the storage groove 12. A reference connecting shaft 17 is horizontally provided at the upper end between the two clamping reference blocks 16. The lower ends of one side of each of the two L-shaped clamping plates 18 are movably sleeved with the reference connecting shaft 17. The upper ends of both L-shaped clamping plates 18 are arc-shaped structures. One side of the arc-shaped structure of the two L-shaped clamping plates 18 clamps the shaft body of the camshaft 6. A strip-shaped guide groove 19 is opened on the side of the L-shaped clamping plate 18 away from the reference connecting shaft 17. The two L-shaped clamping plates 18 are movably sleeved with the clamping control rods 20 via the strip-shaped guide groove 19. When the first piston rod 14 pushes the movable control plate 15 to rise, the clamping control rods 20 rise synchronously. At this time, the reference connecting shaft 17 is connected to the clamping reference blocks 16 via the clamping reference blocks 16. Mounting base 11 is fixedly connected. The two L-shaped clamping plates 18 cannot move vertically. They can only move and flip along the reference connecting shaft 17. At this time, the movable clamping position of the two L-shaped clamping plates 18 can clamp the shaft body of the camshaft 6. The clamping force is related to the force of the first piston rod 14 pushing the movable control plate 15 to lift, ensuring that the two sets of L-shaped clamping plates 18 can clamp and fix the camshaft 6. Similarly, when the first piston rod 14 descends through the clamping spring 21, the movable control plate 15 can pull the L-shaped clamping plates 18 to flip downward along the reference connecting shaft 17. The clamping control rod 20 slides and adapts in the strip guide groove 19. The L-shaped clamping plates 18 retract into the storage groove 12, and the clamping of the camshaft 6 can be canceled. At this time, the machined camshaft 6 can be horizontally pushed out above the shaft processing placement frame 2 with the support of the positioning strip 4.

[0022] Please refer to Figures 9-11 A three-way pipe 35 is horizontally provided below the moving control beam 8. The lower end of the first piston groove 13 is provided with a combined slot hole through the moving control beam 8. The two ends of the three-way pipe 35 are respectively connected to the two combined slot holes. A hose interface is provided in the center of the three-way pipe 35. It is connected to the air compressor equipment commonly used in the factory through the hose structure. The pressure control is connected to the PLC control system to realize the inflation pressure control in the first piston groove 13 and complete the action of the L-shaped clamping plate 18 clamping the camshaft 6.

[0023] Please refer to Figures 4-5The shaft processing placement frame 2 has horizontal guide grooves 7 on its inner side. The two sides of the moving control beam 8 are horizontally slidably inserted into the two horizontal guide grooves 7 respectively. Elastic rubber pads 34 are embedded on the upper and lower sides of the horizontal guide grooves 7. The upper and lower sides of the moving control beam 8 are in contact with the elastic rubber pads 34 respectively. A square hole is opened in the center of the moving control beam 8. The lead screw connecting sleeve 9 is inserted into the square hole. The center of the shaft processing placement frame 2 is horizontally inserted into the drive lead screw 10 through the bearing. The lead screw connecting sleeve 9 is set to be threaded through the lead screw 10. The lead screw connecting sleeve 9 is fitted with a surrounding rubber sleeve 33 in the square hole. The lead screw connecting sleeve 9 can squeeze and surround the rubber sleeve 33 in the square hole, moving up, down, back, left, and right. With the drive lead screw 10 and lead screw connecting sleeve 9 in place, the position of the moving control beam 8 can be finely adjusted. When the moving control beam 8 is adjusted in height or position, the elastic rubber pad 34 can also act as a buffer. When moving horizontally, it can guide the horizontal movement. The surrounding rubber sleeve 33 and the elastic rubber pad 34 are made of ultra-high molecular weight polyethylene, which has the structural effects of corrosion resistance, wear resistance, support and elastic deformation. The elastic rubber pad 34 is a vulnerable part and can be bolted into the horizontal guide groove 7 for easy replacement and maintenance later.

[0024] Please refer to Figure 9 and Figure 10 The movable control beam 8 has a second piston groove 22 extending through the center of both ends on both sides. A guide ring is provided on one side of each second piston groove 22, and a second piston rod 23 is movably inserted through the center of the guide ring. Two positioning rods 24 are located in the two second piston grooves 22 respectively and connected to the second piston rods 23. The ends of the positioning rods 24 facing outwards from the movable control beam 8 are tapered. When the positioning rods 24 are retracted into the second piston grooves 22, the guide ring contacts one side of the positioning rods 24. The side of each second piston groove 22 away from the positioning rods 24 is connected to the first piston groove 13 and has a transfer air groove 27. The second piston rod 23 is provided with a positioning piston 25 on the side near the transfer air groove 27. The second piston rod 23 is fitted with positioning springs 26 between the positioning piston 25 and the guide ring. The support strength of the positioning springs 26 is higher than that of the clamping springs 21. When the high-pressure air can drive the L-shaped clamping plate 18 to clamp the camshaft 6, it is necessary to continue to pressurize to twice the pressure to push the positioning piston 25, the second piston rod 23 and the positioning rod 24 to move. This allows the tapered structure of the positioning rod 24 to extend out of the control beam 8, thereby strengthening and stabilizing the clamping of the camshaft 6 while controlling the extension of the positioning rod 24.

[0025] Please refer to Figure 1 , Figure 3 and Figure 4 and Figure 5Both the horizontal guide groove 7 and the side near the loading box 3 are horizontally provided with adaptation grooves 28. Two support slide rods 29 are horizontally provided in each adaptation groove 28. Movable calibration blocks 30 are movably sleeved on the two support slide rods 29. A return spring 31 is sleeved on the side of each support slide rod 29 away from the loading box 3. One side of the return spring 31 abuts against the movable calibration block 30. A first conical positioning groove 32 is provided at the center of one side of each movable calibration block 30. A second conical positioning groove 36 is provided on both sides of the horizontal guide groove 7 corresponding to two of the cutting tools. The length of the adaptation groove 28 is greater than the moving distance of the moving control beam 8 from the first cutting tool. The movable calibration block 30 is always close to the loading box 3 position in the adaptation groove 28 by the support of the return spring 31. When the moving control beam 8 is directly below the loading box 3, the camshaft 6 is exactly between the two L-shaped clamping plates 18. At this time, the L-shaped clamping plates 18 can clamp the camshaft 6. Then the positioning rod 24 extends and inserts into the first conical positioning groove 32 of the movable calibration block 30. Then the drive screw 10 controls the screw connecting sleeve 9 and the moving control beam 8 to move together. The two ends of the camshaft 6 pass through three processing tools in sequence. The three processing tools are, from the loading box 3 position to the other end, an end face cutting tool, a drilling tool and a tapping tool.

[0026] Working principle: Multiple camshafts 6 are placed into the feeding box 3 by the operator. The lowest camshaft 6 falls to the top of the positioning bar 4 under gravity. At this time, the moving control beam 8 moves to the bottom of the camshaft 6 via the drive screw 10. Then, high-pressure gas is sent into the first piston groove 13 through the three-way pipe 35. The high-pressure gas pushes the first piston rod 14 and the movable control plate 15 to rise. In turn, the clamping control rod 20 and the strip guide groove 19 flip and lift the arc-shaped structure of the L-shaped clamping plate 18. The two L-shaped clamping plates 18 clamp the shaft of the camshaft 6. Then, the high-pressure gas is further pressurized and pushed. At this time, the high-pressure gas pushes the two... One positioning rod 24 extends out of the moving control beam 8 and inserts into the first conical positioning groove 32 of the movable calibration block 30. Since the movable calibration block 30 is guided horizontally by the support slide rod 29, when the moving control beam 8 is not moving horizontally, the two positioning rods 24 can make fine adjustments to the position of the moving control beam 8 on both sides. The position of the lead screw connecting sleeve 9 remains unchanged. The moving control beam 8 can squeeze the surrounding rubber sleeve 33 and the elastic rubber pad 34 to achieve elastic compression fine adjustment, ensuring that the virtual axis of the camshaft 6 is on the same horizontal plane as the virtual axis of the three tools. Then, the lead screw 10 is driven to pull the moving control beam 8 and the movable calibration block 30. During the movement, both ends of the camshaft 6 contact the two end-face cutting blades, completing a neat cut on the end face of the camshaft 6. Then, the pressure in the second piston groove 22 decreases, and the positioning rod 24 disengages from the first conical positioning groove 32 of the movable calibration block 30. The drive screw 10 continues to push the moving control beam 8 along the camshaft 6. When the moving control beam 8 reaches the position of the second conical positioning groove 36, the positioning rod 24 is similarly pushed out, finely adjusting the up-down, front-back, and left-right positions of the moving control beam 8 to ensure that the virtual axis of the camshaft 6 clamped above the moving control beam 8 is coaxial with the two drilling or tapping blades, achieving high coaxiality. The machining process, including the start / stop of the drive screw 10 and the air pressure control within the three-way pipe 35, is all controlled automatically by the PLC. When drilling and tapping are completed, the section of the shaft machining placement frame 2 away from the loading box 3 is inclined. When the camshaft 6 is pushed to this position, the L-shaped clamping plate 18 flips and retracts into the storage groove 12. Then, the moving control beam 8 moves towards the upper loading box 3. After the L-shaped clamping plate 18 and the camshaft 6 are misaligned, the L-shaped clamping plate 18 flips and rises. The drive screw 10 controls the L-shaped clamping plate 18 to push the side of the camshaft 6 towards the inclined position of the shaft machining placement frame 2. The camshaft 6 then automatically slides down to the top of the shaft machining placement frame 2.

[0027] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A drilling and tapping device for camshaft machining, characterized in that, include: A shaft processing machine (1) is provided with a shaft processing placement frame (2) fixed horizontally at the center of the shaft processing machine (1). Three processing tools are symmetrically arranged on both sides of the shaft processing placement frame (2). A feeding assembly is provided on one side of the upper end of the shaft processing placement frame (2). The feeding assembly includes a feeding box (3) and four guide bars (5). Two positioning bars (4) are horizontally arranged at the upper end of the shaft processing placement frame (2). A camshaft (6) is placed on the two positioning bars (4). The feeding assembly is used to guide the camshaft (6) to be placed on the positioning bars (4). Two clamping and stabilizing components are movably inserted into the shaft machining placement frame (2) via a movable positioning component. Each clamping and stabilizing component includes a first piston rod (14) and two L-shaped clamping plates (18). The clamping and stabilizing components clamp and fix the camshaft (6). The movable positioning component includes a movable control beam (8) and two positioning rods (24). The movable positioning component is used for the horizontal position movement of the camshaft (6) and the fine-tuning of the position positioning of the camshaft (6).

2. The drilling and tapping equipment for camshaft machining according to claim 1, characterized in that, The loading box (3) is vertically mounted on one side of the upper end of the shaft processing placement frame (2) by bolts. Four guide bars (5) are vertically and symmetrically arranged on both sides inside the loading box (3). The width between two adjacent guide bars (5) is greater than the shaft diameter of the camshaft (6), and the guide bars (5) are located directly above the positioning bars (4).

3. The drilling and tapping equipment for camshaft machining according to claim 1, characterized in that, The upper end of the movable control beam (8) is horizontally fixed with a clamping mounting seat (11) by bolts. The upper end of the clamping mounting seat (11) is provided with a storage groove (12). The upper end of the movable control beam (8) located in the storage groove (12) is provided with a first piston groove (13). The first piston rod (14) is vertically and movably inserted into the upper side of the first piston groove (13). The upper end of the first piston rod (14) is vertically and movably inserted into the storage groove (12) and is provided with a movable control plate (15). The lower end of the first piston rod (14) located in the first piston groove (13) is provided with a clamping piston. The first piston rod (14) is provided with a clamping spring (21) between the clamping piston and the clamping mounting seat (11).

4. The drilling and tapping equipment for camshaft machining according to claim 3, characterized in that, The upper end of the active control plate (15) is provided with two clamping control rods (20) horizontally via support blocks. The storage groove (12) is provided with clamping reference blocks (16) vertically on both sides of the center. The upper end of the two clamping reference blocks (16) is provided with reference shafts (17) horizontally. The lower end of one side of the two L-shaped clamping plates (18) is movably sleeved with the reference shafts (17). The upper end of the two L-shaped clamping plates (18) is provided with an arc structure. The arc structure of the two L-shaped clamping plates (18) clamps the shaft of the camshaft (6) on one side. The side of the L-shaped clamping plate (18) away from the reference shafts (17) is provided with a strip guide groove (19). The two L-shaped clamping plates (18) are respectively movably sleeved with clamping control rods (20) via the strip guide grooves (19).

5. The drilling and tapping equipment for camshaft machining according to claim 4, characterized in that, A three-way pipe (35) is horizontally provided below the moving control beam (8). The lower end of the first piston groove (13) passes through the moving control beam (8) and is provided with a combined slot hole. The two ends of the three-way pipe (35) are respectively connected to the two combined slot holes.

6. The drilling and tapping equipment for camshaft machining according to claim 1, characterized in that, The shaft processing placement frame (2) has horizontal guide grooves (7) on its inner side. The two sides of the moving control beam (8) are respectively horizontally slidably inserted into the two horizontal guide grooves (7). The upper and lower sides of the horizontal guide grooves (7) are embedded with elastic rubber pads (34), and the upper and lower sides of the moving control beam (8) are in contact with the elastic rubber pads (34) respectively.

7. The drilling and tapping equipment for camshaft machining according to claim 1, characterized in that, The center of the moving control beam (8) has a square hole, and the screw connecting sleeve (9) is inserted into the square hole. The center of the shaft processing placement frame (2) is horizontally connected to the drive screw (10) through the bearing. The screw connecting sleeve (9) is connected to the drive screw (10) through the screw thread, and the screw connecting sleeve (9) is located in the square hole and is fitted with a surrounding rubber sleeve (33).

8. The drilling and tapping equipment for camshaft machining according to claim 1, characterized in that, The movable control beam (8) has a second piston groove (22) that extends through the center of both ends on both sides. A guide ring is provided on one side of each second piston groove (22). A second piston rod (23) is inserted through the center of the guide ring. Two positioning rods (24) are located in the two second piston grooves (22) and connected to the second piston rods (23). The end of the positioning rod (24) facing the outside of the movable control beam (8) is tapered. When the positioning rod (24) is retracted into the second piston groove (22), the guide ring contacts one side of the positioning rod (24).

9. A drilling and tapping device for camshaft machining according to claim 3 or 8, characterized in that, The side of the second piston groove (22) away from the positioning rod (24) is connected to the first piston groove (13) and has a transfer air groove (27). The side of the second piston rod (23) near the transfer air groove (27) has a positioning piston (25). The second piston rod (23) is fitted with a positioning spring (26) between the positioning piston (25) and the guide ring.

10. A drilling and tapping device for camshaft machining according to claim 6, characterized in that, The horizontal guide groove (7) is provided with an adaptation groove (28) on the side near the loading box (3). Two support slide rods (29) are provided horizontally in the adaptation groove (28). A movable calibration block (30) is movably sleeved on the two support slide rods (29). A reset spring (31) is sleeved on the side of the support slide rod (29) away from the loading box (3). One side of the reset spring (31) abuts against the movable calibration block (30). A first conical positioning groove (32) is provided at the center of one side of the movable calibration block (30). A second conical positioning groove (36) is provided on both sides of the horizontal guide groove (7) corresponding to two of the cutting tools. The length of the adaptation groove (28) is greater than the moving distance of the moving control beam (8) from the first cutting tool.

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