A taking and placing device for camshaft forging processing

Abstract

The application relates to the field of camshaft machining technology and discloses a taking and placing device for camshaft forging machining, which comprises a base, the top of the front end of the base is fixedly connected with a lower die, the top of the front end of the base is fixedly connected with a frame, the inner wall of the top of the frame is fixedly connected with a first lifting device, the bottom of the first lifting device is fixedly connected with an upper die, taking and placing mechanisms are arranged on the two sides of the lower die, the traditional clamping taking mode is abandoned, the finished camshaft is taken out from the die by lifting operation, then the camshaft is moved out of the working area by using a placing rack, surface indentation and shape distortion caused by local clamping pressure are avoided, the taking and placing device is suitable for the camshaft workpiece which is still in a high-temperature softening state and has low mechanical strength after forging, thereby effectively preventing workpiece deformation caused by external pressure, and the overall production quality and the yield are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of camshaft machining technology, specifically to a pick-and-place device for camshaft forging. Background Technology

[0002] The camshaft is a component in a piston engine. Its function is to control the opening and closing of the valves. Although the camshaft rotates at half the speed of the crankshaft in a four-stroke engine, its speed is still usually very high, and it needs to withstand a lot of torque. Therefore, the design of the camshaft requires high strength and support, and its material is generally high-quality alloy steel or alloy steel.

[0003] Patent application CN202211065531.X discloses a pick-and-place device for camshaft forging, comprising a positioning and placement device and a guide slide. The positioning and placement device is located beside the camshaft forging device. The guide slide is located on the side of the camshaft forging device away from the positioning and placement device. The positioning and placement device further includes a moving device, a blank limiting mechanism, a moving clamping device, and a precision pushing device. The moving device is located beside the camshaft forging device. The blank limiting mechanism is fixedly installed on the moving device. The moving clamping device is located beside the blank limiting mechanism and is fixedly connected to the moving device. The precision pushing device is located beside the blank limiting mechanism and is fixedly connected to the moving device.

[0004] When using existing equipment, the forged camshaft is usually removed by clamping. However, since the forged camshaft is in a high-temperature softened state, the metal material is relatively soft and the mechanical properties are not yet stable. This removal method has defects. If the clamping force is not properly controlled, excessive pressure can easily cause indentations or deformation on the camshaft surface, affecting its dimensional accuracy and appearance quality, which in turn leads to a decrease in product qualification rate and is not conducive to achieving stable production. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a pick-and-place device for camshaft forging, thereby solving the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a pick-and-place device for camshaft forging, comprising a base, a lower mold fixedly connected to the top of the front end of the base, a frame fixedly connected to the top of the front end of the base, a first lifting device fixedly connected to the inner wall of the top of the frame, an upper mold fixedly connected to the bottom of the first lifting device, and pick-and-place mechanisms provided on both sides of the lower mold, the bottom of the pick-and-place mechanisms being fixedly connected to the base;

[0007] The picking and placing mechanism includes:

[0008] A substrate is fixedly connected to a base at its bottom and to a track at its top. A second push rod is fixedly connected to the outer wall of the top of the substrate, and a first push rod is also fixedly connected to the top of the substrate. A lifting assembly is movably connected to the outer wall of the track, and a driving assembly is fixedly connected to the top of the substrate. The first push rod controls the height of the driving assembly, and the second push rod controls the horizontal position of the lifting assembly. By setting up a pick-and-place mechanism, the traditional clamping and picking method is abandoned, and a lifting operation is used to remove the machined camshaft from the mold. Then, a placement rack is used to move it out of the working area, avoiding surface indentations and shape distortion caused by local clamping pressure. This method is suitable for camshaft workpieces that are still in a high-temperature softened state after forging and have low mechanical strength, thereby effectively preventing workpiece deformation caused by external pressure and helping to ensure overall production quality and yield.

[0009] According to the above technical solution, a second lifting device is fixedly connected to the top of the base, a pushing device is fixedly connected to the top of the second lifting device, a sliding seat is movably connected to the top of the pushing device, and a placement frame is fixedly connected to the side of the sliding seat near the lower mold. The second lifting device can control the height of the pushing device, and the pushing device can control the forward and backward movement of the placement frame.

[0010] According to the above technical solution, the drive assembly includes a movable seat, a third push rod is fixedly connected to the inner side of the movable seat, a motor is fixedly connected to the top of the movable seat, and a gear column is fixedly connected to the output end of the motor. The motor is used to drive the gear column to rotate. By setting the drive assembly, during the process of transferring the forged camshaft from the sleeve to the placement frame, the semi-enclosed structure and deflection control of the sleeve enable the camshaft to fall into the support area of ​​the placement frame, thereby avoiding direct contact and compression of the camshaft body, especially the cam part with a complex profile. Even if the workpiece has slight indentations with the auxiliary support part during the transfer process, they only appear in non-critical areas and can be eliminated by simple grinding later. In contrast, if the cam part is deformed due to improper clamping or placement, the repair difficulty and cost will increase, which is more conducive to ensuring the forming quality of the key surface of the camshaft.

[0011] According to the above technical solution, the lifting component includes a sliding plate, the bottom of which is movably connected to the track. A circular hole is provided on the side of the sliding plate near the driving component, and the inner wall of the circular hole is fixedly connected to a second push rod, wherein the second push rod can control the overall position of the lifting component.

[0012] According to the above technical solution, a first annular plate is provided on the top of the sliding plate, and connecting plates are fixedly connected to both sides of the first annular plate. A first hollow column is fixedly connected to the inner wall of each of the two connecting plates, and a fourth push rod is fixedly connected to the inner wall of each of the two first hollow columns. The two fourth push rods are fixedly connected to the sliding plate. The fourth push rods can cooperate with the first push rods to control the height of the top structure of the driving component and the supporting component.

[0013] According to the above technical solution, a second annular plate is fixedly connected to the inner wall of the first annular plate, and a second hollow column is rotatably connected to the inner wall of the second annular plate through a bearing. A sleeve is fixedly connected to the end of the second hollow column away from the drive assembly, wherein the sleeve can be embedded into both sides of the lower mold and the upper mold.

[0014] According to the above technical solution, a movable column is fixedly connected to the side of the second hollow column away from the sleeve, and a gear disk is fixedly connected to the end of the movable column away from the second hollow column. The gear disk meshes with the gear column, and the rotation of the gear column can drive the sleeve to deflect.

[0015] According to the above technical solution, the inner wall of the gear disk is rotatably connected to a slider via a bearing, and the inner wall of the slider is movably connected to a movable rod. A connecting rod is fixedly connected to one end of the movable rod near the sleeve. The outer wall of the connecting rod is movably connected to a second hollow column, and the inner wall of the movable rod is fixedly connected to a third push rod. The third push rod can control the position of the movable rod. By setting up a lifting assembly, during the process of the sleeve being pulled away from both sides of the camshaft, the sleeve first performs the pulling action, while the connecting rods on both sides remain in their positions, thus forming a stable limit on the camshaft in the horizontal direction. This effectively prevents horizontal displacement of the workpiece caused by the sleeve's pulling away, avoids contact and collision between the cam section and the placement frame, and avoids deformation problems caused by external force collisions on both sides of the cam. After the sleeve is completely detached from the camshaft, the connecting rod then performs a retraction action, achieving smooth handover and placement of the workpiece, further ensuring the forming quality and machining accuracy of the camshaft.

[0016] According to the above technical solution, a third annular plate is fixedly connected to the inner wall of the first annular plate away from the second annular plate. The outer wall of the third annular plate is provided with an arc-shaped groove, and the inner wall of the arc-shaped groove is movably connected to the movable column. The arc-shaped groove can limit the deflection range of the sleeve. By setting up a lifting component, the deflection angle of the sleeve can be limited within the range of the arc-shaped groove, effectively preventing inaccuracy caused by excessive deflection of the sleeve, ensuring the accuracy and reliability of its operation during picking, placing and transferring, thereby improving the overall stability of the equipment operation.

[0017] Compared with the prior art, the present invention provides a pick-and-place device for camshaft forging, which has the following advantages:

[0018] 1. This invention abandons the traditional clamping and picking method by setting up a picking and placing mechanism. Instead, it uses a lifting operation to remove the finished camshaft from the mold, and then uses a placement rack to move it out of the working area. This avoids surface indentation and shape distortion caused by local clamping pressure. It is suitable for camshaft workpieces that are still in a high-temperature softened state after forging and have low mechanical strength. This effectively prevents workpiece deformation caused by external pressure and helps to ensure overall production quality and yield.

[0019] 2. By setting up a drive assembly, this invention utilizes the semi-enclosed structure and deflection control of the sleeve to transfer the forged camshaft from the sleeve to the placement frame, enabling the camshaft to settle into the support area of ​​the placement frame. This avoids direct contact and compression of the camshaft body, especially the cam section with complex contours. Even if slight indentations occur between the workpiece and the auxiliary support during the transfer process, they only appear in non-critical areas and can be eliminated by simple subsequent grinding. In contrast, if the cam section is deformed due to improper clamping or placement, the repair difficulty and cost will increase, which is more conducive to ensuring the forming quality of the critical surfaces of the camshaft.

[0020] 3. By incorporating a lifting assembly, this invention ensures that during the process of the sleeve being withdrawn from both sides of the camshaft, the sleeve first performs the withdrawal action, while the connecting rods on both sides remain in their positions. This creates a stable limit on the camshaft in the horizontal direction, effectively preventing horizontal displacement of the workpiece caused by the sleeve withdrawal, avoiding contact and collision between the cam section and the placement frame, and preventing deformation of the cam sides due to external force collisions. After the sleeve is completely detached from the camshaft, the connecting rods then perform a retraction action, achieving smooth handover and placement of the workpiece, further ensuring the forming quality and machining accuracy of the camshaft.

[0021] 4. By setting up a lifting component, the present invention can limit the deflection angle of the sleeve within the range of the arc groove, effectively preventing inaccuracy caused by excessive deflection of the sleeve, ensuring the accuracy and reliability of its operation during pick-up, drop-off and transfer, thereby improving the overall stability of the equipment operation. Attached Figure Description

[0022] 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:

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0025] Figure 3 This is a partial structural schematic diagram of the present invention;

[0026] Figure 4 This is a schematic diagram of the picking and placing mechanism of the present invention. Figure 1 ;

[0027] Figure 5 This is a schematic diagram of the picking and placing mechanism of the present invention. Figure 2 ;

[0028] Figure 6 This is a schematic diagram of the driving component of the present invention;

[0029] Figure 7 Schematic diagram of the lifting component of the present invention Figure 1 ;

[0030] Figure 8 Schematic diagram of the lifting component of the present invention Figure 2 ;

[0031] Figure 9 Schematic diagram of the lifting component of the present invention Figure 3 ;

[0032] Figure 10 This is a cross-sectional view of the lifting component of the present invention.

[0033] In the diagram: 1. Base; 101. Frame; 102. First lifting device; 103. Upper mold; 104. Lower mold; 105. Second lifting device; 106. Pushing device; 107. Sliding seat; 108. Placement rack; 2. Picking and placing mechanism; 201. Base plate; 202. Track; 203. First push rod; 204. Second push rod; 21. Drive assembly; 211. Moving seat; 212. Third push rod; 213. Motor; 214. Gear 22. Wheel column; 22. Lifting assembly; 221. Sliding plate; 222. Fourth push rod; 223. Circular hole; 224. First hollow column; 225. Connecting plate; 226. First annular plate; 227. Second annular plate; 228. Third annular plate; 229. Arc groove; 2210. Second hollow column; 2211. Sleeve; 2212. Movable column; 2213. Gear disk; 2214. Slider; 2215. Movable rod; 2216. Connecting rod. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0035] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.

[0036] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0037] Example 1: See Figures 1-6 The present invention provides a technical solution: a pick-and-place device for camshaft forging, comprising a base 1, a lower mold 104 fixedly connected to the top of the front end of the base 1, a frame 101 fixedly connected to the top of the front end of the base 1, a first lifting device 102 fixedly connected to the inner wall of the top of the frame 101, an upper mold 103 fixedly connected to the bottom of the first lifting device 102, and pick-and-place mechanisms 2 provided on both sides of the lower mold 104, the bottom of the pick-and-place mechanism 2 being fixedly connected to the base 1;

[0038] The pick-and-place mechanism 2 includes: a base plate 201, the bottom of which is fixedly connected to a base 1; a track 202 fixedly connected to the top of the base plate 201; a second push rod 204 fixedly connected to the outer wall of the top of the base plate 201; a first push rod 203 fixedly connected to the top of the base plate 201; a lifting assembly 22 movably connected to the outer wall of the track 202; and a driving assembly 21 fixedly connected to the top of the base plate 201. The first push rod 203 controls the height of the driving assembly 21, and the second push rod 204 controls the horizontal position of the lifting assembly 22. A second lifting device 105 is fixedly connected to the top of the base 1, and a pushing device 106 is fixedly connected to the top of the second lifting device 105. A sliding seat 107 is movably connected to the top of the pushing device 106, and the sliding seat 107 is close to the lower... A placement frame 108 is fixedly connected to one side of the mold 104. The second lifting device 105 can control the height of the pushing device 106, and the pushing device 106 can control the forward and backward movement of the placement frame 108. During the operation of the equipment, the camshaft is forged in the cavity formed by the upper mold 103 and the lower mold 104. Then, the first lifting device 102 drives the upper mold 103 to rise to open the mold, and the formed camshaft workpiece remains in the cavity of the lower mold 104. At this time, the pick-and-place mechanism 2 is activated to lift the workpiece from the cavity of the lower mold 104 and make it detach from the mold. Then, the pushing device 106 starts to work, driving the sliding seat 107 and the placement frame 108 at the front end to move forward and insert the supporting part of the placement frame 108 directly below the lifted workpiece. Subsequently, the second lifting device 105 is activated, driving the placement rack 108 to rise and support the camshaft workpiece from below. After the support is stable, the push device 106 reverses the drive, causing the placement rack 108 to move backward with the workpiece, thereby removing the camshaft workpiece from the working area. In the actual production process, in order to connect the upper and lower processes, a dedicated transport device is usually set up between the lower mold 104 and the exit station of the placement rack 108, such as a conveyor belt equipped with a placement rack of appropriate length. The placement rack 108 can place the finished camshaft workpiece on this conveyor belt, thereby realizing the automatic reception and transfer of the workpiece, ensuring that subsequent processing processes can be carried out continuously and efficiently.

[0039] The drive assembly 21 includes a movable base 211, a third push rod 212 is fixedly connected to the inner side of the movable base 211, a motor 213 is fixedly connected to the top of the movable base 211, and a gear column 214 is fixedly connected to the output end of the motor 213, wherein the motor 213 is used to drive the gear column 214 to rotate.

[0040] Example 2: Please refer to Figures 7-10Based on Embodiment 1, the present invention provides a technical solution: the lifting component 22 includes a sliding plate 221, the bottom of which is movably connected to the track 202. A circular hole 223 is provided on the side of the sliding plate 221 near the driving component 21. The inner wall of the circular hole 223 is fixedly connected to a second push rod 204, wherein the second push rod 204 can control the overall position of the lifting component 22. A first annular plate 226 is provided on the top of the sliding plate 221. Connecting plates 225 are fixedly connected to both sides of the first annular plate 226. First hollow columns 224 are fixedly connected to the inner walls of the two connecting plates 225. Fourth hollow columns 224 are fixedly connected to the inner walls of the two first hollow columns 224. Push rod 222, two fourth push rods 222 are fixedly connected to sliding plate 221. The fourth push rod 222, in conjunction with the first push rod 203, can control the height of the top structure of the drive assembly 21 and the supporting assembly 22. A second annular plate 227 is fixedly connected to the inner wall of the first annular plate 226. A second hollow column 2210 is rotatably connected to the inner wall of the second annular plate 227 via a bearing. A sleeve 2211 is fixedly connected to the end of the second hollow column 2210 away from the drive assembly 21. The sleeve 2211 can be embedded into both sides of the lower mold 104 and the upper mold 103. A... A movable column 2212 is fixedly connected to a gear disk 2213 at its end away from the second hollow column 2210. The gear disk 2213 meshes with a gear column 214. The rotation of the gear column 214 can cause the sleeve 2211 to deflect. A slider 2214 is rotatably connected to the inner wall of the gear disk 2213 via a bearing. A movable rod 2215 is movably connected to the inner wall of the slider 2214. A connecting rod 2216 is fixedly connected to the end of the movable rod 2215 near the sleeve 2211. The outer wall of the connecting rod 2216 is movably connected to the second hollow column 2210, and the inner wall of the movable rod 2215 is fixedly connected to a third push rod 212. 12 can control the position of the movable rod 2215. The inner wall of the first annular plate 226 away from the second annular plate 227 is fixedly connected to the third annular plate 228. The outer wall of the third annular plate 228 is provided with an arc-shaped groove 229. The inner wall of the arc-shaped groove 229 is movably connected to the movable column 2212. The arc-shaped groove 229 can limit the deflection range of the sleeve 2211. As the camshaft workpiece forging is completed, the first push rod 203 and the fourth push rod 222 start synchronously and lift the upper half of the lifting assembly 22 and the drive assembly 21 upward as a whole. During this process, the sleeves 2211 on both sides lift the workpiece from below and make it separate from the cavity of the lower mold 104.When the lifting action reaches the preset peak, the motor 213 starts and drives the gear column 214 to rotate. The gear column 214, through meshing with the gear disk 2213, transmits the rotational motion to the sleeve 2211 via the movable column 2212 and the second hollow column 2210, causing it to deflect at a certain angle and adjust its shorter side to the bottom, providing space for the placement rack 108 to be placed. Subsequently, the second push rod 204 drives the entire lifting assembly 22 to move backward, moving the workpiece directly above the already positioned placement rack 108. After the placement rack 108 supports the workpiece, the third push rod 212 is activated, pulling the movable rod 2215 and connecting rod 2216 backward to completely detach it from both sides of the workpiece; finally, the placement rack 108 moves the workpiece out of the work area, completing the entire removal process; when it is necessary to place the workpiece to be processed into the mold, the process is reversed. The placement rack 108 first receives the unprocessed camshaft blank from the subsequent conveyor belt; the pushing device 106 drives the placement rack 108 forward to a predetermined position above the lower mold 104. The lifting assembly 22 moves forward and rises under the drive, embedding the workpiece into the sleeve 2211 on both sides; the second lifting device 105 drives the placement frame 108 to descend slightly, transferring the workpiece onto the sleeve 2211, after which the placement frame 108 resets; the connecting rod 2216 extends forward under the push of the third push rod 212, stabilizing the workpiece from both sides; subsequently, the sleeve 2211 rotates in the opposite direction to reset under the drive, the lifting assembly 22 descends, and smoothly places the workpiece into the cavity of the lower mold 104, completing the placement operation.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pick-and-place device for camshaft forging, comprising a base (1), a lower mold (104) fixedly connected to the top of the front end of the base (1), a frame (101) fixedly connected to the top of the front end of the base (1), a first lifting device (102) fixedly connected to the inner wall of the top of the frame (101), and an upper mold (103) fixedly connected to the bottom of the first lifting device (102), characterized in that, Both sides of the lower mold (104) are provided with pick-up and place mechanisms (2), and the bottom of the pick-up and place mechanism (2) is fixedly connected to the base (1); The picking and placing mechanism (2) includes: The substrate (201) is fixedly connected to the base (1) at its bottom. The top of the substrate (201) is fixedly connected to the track (202). The outer wall of the top of the substrate (201) is fixedly connected to the second push rod (204). The top of the substrate (201) is fixedly connected to the first push rod (203). The outer wall of the track (202) is movably connected to the lifting assembly (22). The top of the substrate (201) is fixedly connected to the driving assembly (21). The first push rod (203) is used to control the height of the driving assembly (21), and the second push rod (204) is used to control the horizontal position of the lifting assembly (22).

2. The pick-and-place device for camshaft forging according to claim 1, characterized in that: The base (1) is fixedly connected to a second lifting device (105), the second lifting device (105) is fixedly connected to a pushing device (106), the pushing device (106) is movably connected to a sliding seat (107), and the sliding seat (107) is fixedly connected to a placement frame (108) on the side near the lower mold (104). The second lifting device (105) can control the height of the pushing device (106), and the pushing device (106) can control the forward and backward movement of the placement frame (108).

3. The pick-and-place device for camshaft forging according to claim 2, characterized in that: The drive assembly (21) includes a movable base (211), a third push rod (212) is fixedly connected to the inner side of the movable base (211), a motor (213) is fixedly connected to the top of the movable base (211), and a gear column (214) is fixedly connected to the output end of the motor (213). The motor (213) is used to drive the gear column (214) to rotate.

4. The pick-and-place device for camshaft forging according to claim 3, characterized in that: The lifting assembly (22) includes a sliding plate (221), the bottom of which is movably connected to the track (202). A circular hole (223) is provided on the side of the sliding plate (221) near the drive assembly (21). The inner wall of the circular hole (223) is fixedly connected to a second push rod (204), wherein the second push rod (204) can control the overall position of the lifting assembly (22).

5. A pick-and-place device for camshaft forging according to claim 4, characterized in that: The top of the sliding plate (221) is provided with a first annular plate (226), and connecting plates (225) are fixedly connected to both sides of the first annular plate (226). The inner walls of the two connecting plates (225) are fixedly connected with first hollow columns (224), and the inner walls of the two first hollow columns (224) are fixedly connected with fourth push rods (222). The two fourth push rods (222) are fixedly connected to the sliding plate (221). The fourth push rods (222) can cooperate with the first push rods (203) to control the height of the top structure of the driving component (21) and the lifting component (22).

6. A pick-and-place device for camshaft forging according to claim 5, characterized in that: The inner wall of the first annular plate (226) is fixedly connected to a second annular plate (227), and the inner wall of the second annular plate (227) is rotatably connected to a second hollow column (2210) via a bearing. A sleeve (2211) is fixedly connected to one end of the second hollow column (2210) away from the drive assembly (21), wherein the sleeve (2211) can be embedded into both sides of the lower mold (104) and the upper mold (103).

7. A pick-and-place device for camshaft forging according to claim 6, characterized in that: A movable column (2212) is fixedly connected to the side of the second hollow column (2210) away from the sleeve (2211). A gear disk (2213) is fixedly connected to the end of the movable column (2212) away from the second hollow column (2210). The gear disk (2213) meshes with the gear column (214). The rotation of the gear column (214) can cause the sleeve (2211) to deflect.

8. A pick-and-place device for camshaft forging according to claim 7, characterized in that: The inner wall of the gear disk (2213) is rotatably connected to a slider (2214) via a bearing. The inner wall of the slider (2214) is movably connected to a movable rod (2215). The end of the movable rod (2215) near the sleeve (2211) is fixedly connected to a connecting rod (2216). The outer wall of the connecting rod (2216) is movably connected to the second hollow column (2210). The inner wall of the movable rod (2215) is fixedly connected to a third push rod (212). The third push rod (212) can control the position of the movable rod (2215).

9. A pick-and-place device for camshaft forging according to claim 8, characterized in that: A third annular plate (228) is fixedly connected to the inner wall of the first annular plate (226) away from the second annular plate (227). An arc groove (229) is provided on the outer wall of the third annular plate (228). The inner wall of the arc groove (229) is movably connected to the movable column (2212). The arc groove (229) can limit the deflection range of the sleeve (2211).

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