Positioning device for accurate grinding of camshaft

Abstract

The invention provides a camshaft accurate grinding machining positioning device which comprises a clamping module, a rotary positioning module and a driving module, a positioning area used for being in lap joint with a camshaft is formed on the clamping module, a positioning hole is formed in the end of the camshaft, the rotary positioning module comprises a rotary transmission unit and an elastic positioning piece, and the elastic positioning piece is arranged on the clamping module. The elastic positioning piece is used for elastically abutting against the end of the cam shaft, the rotary transmission unit is used for driving the elastic positioning piece to conduct circumferential movement around the end of the cam shaft, and the elastic positioning piece has at least one movement position in the circumferential movement process so that part of the elastic positioning piece can elastically stretch into the positioning hole to be connected with the cam shaft. The elastic positioning part is arranged on the base, the elastic positioning part drives the cam shaft to rotate and position when the elastic positioning part does circumferential movement again, the driving module comprises a driving unit, a clamping driver and a rotating driver, the clamping driver and the rotating driver are connected with the driving unit, through the arrangement, the fixing mode for positioning the cam shaft in the prior art can be changed, and the effect of simple operation is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the camshaft machining technical field, especially relates to a camshaft fine grinding positioning device. BACKGROUND

[0002] The camshaft is a core component in the engine valve train, and is driven to rotate by a chain or a belt. The camshaft has a positioning hole or a key groove at the end.

[0003] When the camshaft is fine ground, the two ends of the camshaft need to be fixed by means of a clamping device on the fine grinding equipment. The clamping tool is composed of two clamping plates and a positioning pin arranged on one of the clamping plates. During clamping, the camshaft is first placed between the two clamping plates, and then the positioning hole of the camshaft is connected with the positioning pin by rotating the camshaft, and the camshaft is clamped by the two clamping plates to realize the vertical and rotational fixation of the camshaft.

[0004] However, the existing clamping tool needs to be placed and rotated in the operation process. Since the surface of the camshaft is a smooth curved surface, the rotation of the camshaft is difficult due to slipping. Therefore, the existing clamping tool has the problem of difficult operation. SUMMARY

[0005] Therefore, the purpose of the present application is to provide a camshaft fine grinding positioning device to solve the technical problem of difficult operation of the existing clamping tool in fixing the camshaft.

[0006] According to the camshaft fine grinding positioning device of the present application, the clamping module is arranged on the machine body, the rotating positioning module and the driving module are arranged on the clamping module. The clamping module has a positioning area for lapping the camshaft, and the end of the camshaft has a positioning hole. The rotating positioning module includes a rotating transmission unit and an elastic positioning piece. The elastic positioning piece is used to elastically abut against the end of the camshaft, and the rotating transmission unit is used to drive the elastic positioning piece to move circumferentially around the end of the camshaft. During the circumferential movement of the elastic positioning piece, at least one movement position of the elastic positioning piece is arranged to elastically extend into the positioning hole to connect with the camshaft, so that when the elastic positioning piece moves circumferentially again, the elastic positioning piece drives the camshaft to rotate and position. The driving module comprises a driving unit, a clamping driver and a rotating driver connected with the driving unit, the driving path of the clamping driver is behind the driving path of the rotating driver, so that the rotating driver drives the rotating transmission unit to move first, and then the clamping driver drives the clamping module to clamp the camshaft in the positioning area.

[0007] Further, the positioning device further comprises a pose adjusting module and a pose driver connected with the driving unit; The driving path of the pose driver is behind the driving path of the clamping driver, so that the clamping driver clamps the camshaft, and then the pose driver drives the pose adjusting module to move to adjust the horizontal position of the camshaft.

[0008] Further, the driving module further comprises a lifting support connected with the driving unit; The rotating driver, the clamping driver and the pose driver are arranged in sequence on the lifting support according to the driving path, so that the lifting support is driven to move up and down by the driving unit, and the rotating driver, the clamping driver and the pose driver drive the rotating transmission unit, the clamping module and the pose adjusting module to move in sequence.

[0009] Further, the clamping module comprises a double transmission part formed with two transmission parts, two clamping plates and two transmission parts arranged on the clamping plates; The two clamping plates are slidably connected to the machine body, so that the two transmission parts are arranged staggered between the two clamping plates to form a containing space for the transmission part to rest on; The two transmission parts are in transmission connection with the transmission part, and the other transmission part is in transmission connection with the clamping driver.

[0010] Further, the rotating transmission unit comprises a ring-shaped transmission part and a support; The ring-shaped transmission part is rotatably connected with the machine body, one end of the support is connected with part of the edge of the ring-shaped transmission part, and the other end of the support extends towards the horizontal direction perpendicular to the positioning hole and is used to support the elastic positioning part, so that the end of the elastic positioning part is opposite to the horizontal plane perpendicular to the positioning hole.

[0011] Further, the rotating positioning module further comprises two magnetically connected magnetic attraction parts; One of the magnetic attraction parts is connected with the support, and the other magnetic attraction part is arranged on the machine body.

[0012] Furthermore, the pose adjustment module includes an elastic element and a pushing element; The pusher is elastically connected to the center of the annular transmission member via the elastic member, wherein one end of the pusher is positioned directly opposite the end of the camshaft, and the other end of the pusher is used for transmission connection with the posture driver.

[0013] Furthermore, the pose actuator is a wedge block disposed on the lifting bracket, the wedge block having a straight portion and an inclined portion; Both the straight portion and the inclined portion are configured to be positioned opposite to the pushing member; When the lifting bracket drives the wedge block to move toward the pusher, the end of the pusher slides sequentially along the inclined direction of the inclined portion and the horizontal direction of the straight portion.

[0014] Furthermore, the machine body is also provided with a waste collection bin directly opposite the camshaft.

[0015] Furthermore, the opening size of the waste collection bin gradually decreases from top to bottom.

[0016] Compared with existing technologies: In the camshaft precision grinding positioning device proposed in this invention, the arrangement of a clamping module, a rotary positioning module, and a drive module allows the camshaft to be positioned by first using the positioning area in the clamping module to overlap with the camshaft, ensuring that the positioning hole on the camshaft end is located outside the positioning area. Then, the drive unit drives the clamping driver and the rotary driver. Since the drive path of the clamping driver follows the drive path of the rotary driver, the rotary driver first drives the rotary transmission unit, and then the clamping driver drives the clamping module to clamp the camshaft in the positioning area. Specifically, the rotary driver first drives the rotary transmission unit to run. The elastic positioning element will move circumferentially around the end of the camshaft, and the end of the elastic positioning element will always elastically abut against the end of the camshaft. During the circumferential movement, at least one movement position allows part of the elastic positioning element to elastically extend into the positioning hole and connect with the camshaft. At this time, the elastic positioning element will move circumferentially again, causing the elastic positioning element to drive the camshaft to rotate and position, thereby achieving rotational positioning of the camshaft. After rotational positioning is completed, the clamping driver drives the clamping module to clamp the camshaft in the positioning area, thereby achieving dual fixation of the camshaft in the circumferential and vertical directions, thus changing the fixation method of camshaft positioning in the prior art and achieving the effect of simple operation. Attached Figure Description

[0017] Figure 1 This is a perspective view of the camshaft precision grinding positioning device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of the camshaft precision grinding positioning device in one embodiment of the present invention; Figure 3 This is a perspective view of the clamping module, the rotation positioning module, and the pose adjustment module in one embodiment of the present invention. Figure 4 for Figure 3 Enlarged schematic diagram of part A; Figure 5 This is another perspective view of the clamping module, rotation positioning module, and pose adjustment module in one embodiment of the present invention; Figure 6 for Figure 5 Side view; Figure 7 for Figure 6 A three-dimensional half-section view of the AA section; Figure 8 for Figure 7 Enlarged schematic diagram of part B; Figure 9 for Figure 5 The front view; Figure 10 for Figure 9 Enlarged schematic diagram of part C.

[0018] Explanation of reference numerals in the attached figures: 100. Body; 200. Clamping module; 210. Dual-type transmission component; 211. Transmission unit; 220. Clamping plate; 230. Transmission component; 300. Rotary positioning module; 310. Rotary transmission unit; 311. Ring transmission component; 312. Support component; 320. Elastic positioning component; 330. Magnetic suction component; 400. Drive module; 410. Drive unit; 420. Clamping driver; 430. Rotary driver; 440. Position driver; 441. Straight part; 442. Inclined part; 450. Lifting bracket; 500. Camshaft; 510. Positioning hole; 600. Position adjustment module; 610. Elastic component; 620. Pushing component; 700. Waste collection bin.

[0019] The following detailed description of the embodiments will further illustrate the present invention in conjunction with the above-described accompanying drawings. Detailed Implementation

[0020] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of the invention are illustrated in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0021] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] Please see Figures 1-10 The image shows a camshaft precision grinding positioning device according to an embodiment of the present invention, including a clamping module 200, a rotary positioning module 300 and a drive module 400 for being mounted on a machine body 100. The clamping module 200 has a positioning area for engaging the camshaft 500, wherein the end of the camshaft 500 has a positioning hole 510. It should be noted that the end of the camshaft 500 itself has a positioning hole 510, which is used to fix the camshaft 500 so that the camshaft 500 can always remain static when the camshaft 500 is being fine-tuned, so as to ensure the fine-tuning accuracy.

[0024] In this embodiment, to facilitate the positioning of the camshaft 500, the rotary positioning module 300 includes a rotary transmission unit 310 and an elastic positioning member 320. The elastic positioning member 320 is used to elastically abut against the end of the camshaft 500, and the rotary transmission unit 310 is used to drive the elastic positioning member 320 to move circumferentially around the end of the camshaft 500. During the circumferential movement, the elastic positioning member 320 has at least one moving position that allows part of the elastic positioning member 320 to elastically extend into the positioning hole 510 and connect with the camshaft 500, so that when the elastic positioning member 320 performs circumferential movement, the elastic positioning member 320 drives the camshaft 500 to rotate and be positioned. The drive module 400 includes a drive unit 410, a clamping driver 420 and a rotary driver 430 connected to the drive unit 410. The drive path of the clamping driver 420 is after the drive path of the rotary driver 430, so that the rotary driver 430 drives the rotary transmission unit 310 to move first, and then the clamping driver 420 drives the clamping module 200 to clamp the camshaft 500 in the positioning area.

[0025] In actual operation, the clamping module 200, rotary positioning module 300, and drive module 400 are configured such that when positioning the camshaft 500, the positioning area in the clamping module 200 can first overlap the camshaft 500, allowing the positioning hole 510 on the end of the camshaft 500 to be located outside the positioning area. Then, the drive unit 410 drives the clamping driver 420 and the rotary driver 430. Since the drive path of the clamping driver 420 is after the drive path of the rotary driver 430, the rotary driver 430 first drives the rotary transmission unit 310 to move, and then the clamping driver 420 drives the clamping module 200 to clamp the camshaft 500 in the positioning area. Specifically, when the rotary driver 430 first drives the rotary transmission unit 310 to move, the elastic positioning member 310... The camshaft 500 will move circumferentially around its end, and the end of the elastic positioning member 320 will always elastically abut against the end of the camshaft 500. During the circumferential movement, at least one movement position allows part of the elastic positioning member 320 to elastically extend into the positioning hole 510 and connect with the camshaft 500. At this time, the elastic positioning member 320 will move circumferentially again, causing the elastic positioning member 320 to drive the camshaft 500 to rotate and position, thereby achieving rotational positioning of the camshaft 500. After rotational positioning is completed, the clamping driver 420 drives the clamping module 200 to clamp the camshaft 500 in the positioning area, thereby achieving dual fixation of the camshaft 500 in the circumferential and vertical directions, thus changing the fixation method of positioning the camshaft 500 in the prior art and achieving the effect of simple operation.

[0026] It should be noted that in some practical situations, the finishing equipment for finishing the camshaft 500 can be directly mounted on the body 100 of this embodiment. Specifically, it can be arranged above the clamping module 200. The finishing equipment can be used to finish the camshaft 500 after it is fixed. Since the finishing equipment is conventional prior art in this field, it will not be described in detail here.

[0027] In addition, since the horizontal position of the camshaft 500 may be slightly offset during the process of lapping the camshaft 500, in this embodiment, in order to ensure that the camshaft 500 can remain centered after positioning, the positioning device also includes a pose adjustment module 600 and a pose driver 440 connected to the drive unit 410. The drive path of the pose driver 440 is after the drive path of the clamping driver 420, so that after the clamping driver 420 clamps the camshaft 500, the pose driver 440 pushes the pose adjustment module 600 to move in order to adjust the horizontal position of the camshaft 500.

[0028] Please see Figures 2-10As shown, the drive path of the pose driver 440 is after the drive path of the clamping driver 420, so that after the camshaft 500 is clamped, the pose adjustment module 600 can push the camshaft 500 to move horizontally, so that the center of the camshaft 500 can coincide with the center of the body 100. It should be noted that in this embodiment, the transmission positions of the clamping driver 420 and the pose driver 440 with the clamping module 200 and the pose adjustment module 600 can be adjusted. When the clamping module 200 has not fully clamped the camshaft 500, the pose adjustment module 600 can push the horizontal position of the camshaft 500 to the center position to complete the horizontal position adjustment of the camshaft 500. With this setting, the disadvantage of not being able to push the camshaft 500 when the clamping module 200 has completed clamping and fixing the camshaft 500 can be avoided.

[0029] Specifically, in this embodiment, the drive module 400 further includes a lifting bracket 450 connected to the drive unit 410; The rotary driver 430, clamping driver 420 and pose driver 440 are arranged sequentially on the lifting bracket 450 according to the driving path, so as to drive the lifting bracket 450 to perform lifting and lowering movements through the driving unit 410, so that the rotary driver 430, clamping driver 420 and pose driver 440 drive the rotary transmission unit 310, clamping module 200 and pose adjuster to run in sequence.

[0030] Further, please refer to Figures 2-10 As shown, the clamping module 200 includes a dual transmission member 210 with two transmission parts 211, two clamping plates 220, and two transmission members 230 disposed on the clamping plates 220. Two clamping plates 220 are slidably connected to the body 100, so that two transmission components 230 are staggered between the two clamping plates 220 to form a receiving space for a transmission part 211 to rest. Both transmission components 230 are connected to a transmission part 211, and the other transmission part 211 is used to be connected to the clamping driver 420.

[0031] It should be noted that the dual transmission component 210 shown in this embodiment can be formed by two gears and a transmission rod disposed between the two gears. That is, the transmission part 211 on the dual transmission component 210 is a gear, the transmission component 230 can be a rack in the prior art, and the clamping driver 420 can also be a rack. When the driving unit 410 drives the lifting bracket 450 to move up and down, the lifting bracket 450 will drive the clamping driver 420 to transmit with one transmission part 211 of the dual transmission component 210. Then, the other transmission part 211 drives the two transmission components 230 to move away from each other or move closer to each other. When the two clamping plates 220 move away from each other, a positioning area for overlapping the camshaft 500 can be formed between the two clamping plates 220. When the two clamping plates 220 move closer to each other, the two clamping plates 220 can move closer to each other towards the positioning area to fix the camshaft 500.

[0032] Please refer to it again. Figures 2-10 As shown, the rotary transmission unit 310 includes an annular transmission member 311 and a support member 312. The annular transmission member 311 is rotatably connected to the body 100. One end of the support member 312 is connected to a portion of the edge of the annular transmission member 311. The other end of the support member 312 extends in a horizontal direction perpendicular to the positioning hole 510 and is used to support the elastic positioning member 320, such that the end of the elastic positioning member 320 is directly opposite the horizontal plane perpendicular to the positioning hole 510.

[0033] The annular transmission component 311 shown in this embodiment can be a gear in the prior art. Correspondingly, the rotary driver 430 can also be a rack in the prior art. When the drive unit 410 drives the lifting bracket 450 to move up and down, the rotary driver 430 will mesh with the annular transmission component 311, so that the annular transmission component 311 drives the support component 312 to move in annular circumferential direction, so that the end of the elastic positioning component 320 can move along the end of the camshaft 500. It should be noted that the elastic positioning component 320 can be composed of a spring and a positioning pin. Specifically, the positioning pin is elastically set on the support component 312 by the spring, so that the positioning pin can elastically extend into the positioning hole 510 of the camshaft 500, realizing the connection between the elastic positioning component 320 and the camshaft 500.

[0034] In some preferred embodiments, the end face of the locating pin near the locating hole 510 can be a smooth spherical structure, specifically a ball bearing.

[0035] Please refer to it again. Figures 2-10 As shown, the pose adjustment module 600 includes an elastic element 610 and a pushing element 620; The pusher 620 is elastically connected to the center of the annular transmission 311 via the elastic member 610. One end of the pusher 620 is positioned opposite the end of the camshaft 500, and the other end is connected to the position driver 440. Specifically, the position driver 440 is a wedge block mounted on the lifting bracket 450. The wedge block has a straight portion 441 and an inclined portion 442, both of which are positioned opposite to the pusher 620. When the lifting bracket 450 drives the wedge block to move toward the pusher 620, the end of the pusher 620 slides sequentially along the inclined direction of the inclined portion 442 and the horizontal direction of the straight portion 441.

[0036] In specific implementation, when the drive unit 410 drives the lifting bracket 450 to move up and down, the inclined part 442 will abut against one end of the pusher 620. Utilizing the inclined surface of the inclined part 442, the inclined surface trajectory of the inclined part 442 will drive the other end of the pusher 620 to move towards the end of the camshaft 500. The horizontal position of the camshaft 500 can be adjusted by the pusher 620. When the drive unit 410 drives the lifting bracket 450 to the end position, the straight part 441 allows the pusher 620 to abut against the end of the camshaft 500, thereby applying pressure to the end face of the camshaft 500. This allows the end of the camshaft 500 to be positioned in the horizontal, vertical, and circumferential directions, further improving the stability of the camshaft 500 fixed on the machine body 100.

[0037] It should be noted that, in this embodiment, the elastic element 610 can be a spring from the prior art.

[0038] In addition, in some preferred embodiments, the rotary positioning module 300 further includes two magnetically connected magnetic components 330, one of which is connected to the support component 312, and the other is disposed on the body 100.

[0039] Please see Figure 10 As shown, in this embodiment, the magnetic suction component 330 allows the elastic positioning component 320 to return to its initial position after rotating one revolution. The attraction between the two magnetic suction components 330 fixes the position of the elastic positioning component 320 and limits its position, ensuring that the elastic positioning component 320 is located below the camshaft 500. After the camshaft 500 is finished, the elastic positioning component 320 will rotate one revolution in the opposite direction, allowing the camshaft 500 to be directly disassembled, thus preventing the elastic positioning component 320 from hindering the movement of the finished camshaft 500.

[0040] In addition, waste will be generated during the finishing process. In this embodiment, the machine body 100 is also provided with a waste collection bin 700 facing the camshaft 500. The opening size of the waste collection bin 700 gradually changes from the top to the bottom, and the waste can be processed through the waste collection bin 700.

[0041] Furthermore, to facilitate the rotation and grinding of the camshaft 500, in some preferred embodiments, the positioning device, consisting of the body 100, clamping module 200, rotary positioning module 300, drive module 400, and posture adjustment module 600, can be configured as two sets. The two sets of positioning devices are of a separate design, and the body 100 in each positioning device can be configured as a rectangular structure, not a rectangular one. Figure 1 The body 100 shown is rectangular in structure and has no base plate at the bottom.

[0042] In specific operation, the two sets of positioning devices can be directly assembled into the machine tool. The machine body 100 is clamped by the machine tool's special rectangular workpiece fixture, thereby driving the camshaft 500 to rotate for grinding. Since the rectangular workpiece fixture of the machine tool is conventional prior art in this field, it will not be described in detail here. In addition, it should be noted that the drive unit 410 in the drive module 400 can also be set as a manual lead screw mechanism. The lead screw mechanism is arranged inside the machine body 100. The lead screw mechanism consists of a lead screw and a slider. The slider can be connected to the lifting bracket 450. By driving the lead screw to rotate, the slider drives the lifting bracket 450 to move up and down.

[0043] In summary, the camshaft precision grinding positioning device provided in this embodiment, through the arrangement of the clamping module 200, the rotary positioning module 300, and the drive module 400, allows the camshaft 500 to be positioned. First, the positioning area in the clamping module 200 can overlap the camshaft 500, ensuring that the positioning hole 510 on the end of the camshaft 500 is outside the positioning area. Then, the drive unit 410 drives the clamping driver 420 and the rotary driver 430. Since the drive path of the clamping driver 420 is after the drive path of the rotary driver 430, the rotary driver 430 first drives the rotary transmission unit 310, and then the clamping driver 420 drives the clamping module 200 to clamp the camshaft 500 in the positioning area. Specifically, the rotary driver 430 first drives the rotary transmission unit 310... During operation, the elastic positioning member 320 will move circumferentially around the end of the camshaft 500, and the end of the elastic positioning member 320 will always elastically abut against the end of the camshaft 500. During the circumferential movement, at least one movement position allows part of the elastic positioning member 320 to elastically extend into the positioning hole 510 and connect with the camshaft 500. At this time, the elastic positioning member 320 will move circumferentially again, causing the elastic positioning member 320 to drive the camshaft 500 to rotate and position, thereby achieving rotational positioning of the camshaft 500. After rotational positioning is completed, the clamping driver 420 drives the clamping module 200 to clamp the camshaft 500 in the positioning area, thereby achieving dual fixation of the camshaft 500 in the circumferential and vertical directions, thus changing the fixation method of positioning the camshaft 500 in the prior art and achieving the effect of simple operation.

[0044] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A camshaft finish grinding positioning device, characterized in that, The device comprises a clamping module, a rotating positioning module and a driving module arranged on the machine body; The clamping module is provided with a positioning area for overlapping the camshaft, and the end of the camshaft is provided with a positioning hole; The rotating positioning module comprises a rotating transmission unit and an elastic positioning member, the elastic positioning member is used for elastically abutting against the end of the camshaft, and the rotating transmission unit is used for driving the elastic positioning member to move circumferentially around the end of the camshaft; During the circumferential movement of the elastic positioning member, at least one movement position of the elastic positioning member is arranged to elastically extend into the positioning hole to connect with the camshaft, so that when the elastic positioning member moves circumferentially again, the elastic positioning member drives the camshaft to rotate and position. The driving module comprises a driving unit, a clamping driver and a rotating driver connected with the driving unit, the driving path of the clamping driver is after the driving path of the rotating driver, so that the rotating driver drives the rotating transmission unit to move first, and then the clamping driver drives the clamping module to clamp the camshaft in the positioning area.

2. The camshaft finish grinding positioning device of claim 1, wherein, The positioning device further comprises a pose adjusting module and a pose driver connected with the driving unit; The driving path of the pose driver is after the driving path of the clamping driver, so that after the clamping driver clamps the camshaft, the pose driver drives the pose adjusting module to move to adjust the horizontal position of the camshaft.

3. The camshaft finish grinding positioning device of claim 2, wherein, The driving module further comprises a lifting support connected with the driving unit; The rotating driver, the clamping driver and the pose driver are arranged in sequence according to the driving path on the lifting support, so that the lifting support is driven by the driving unit to move up and down, and the rotating driver, the clamping driver and the pose driver drive the rotating transmission unit, the clamping module and the pose adjusting device to move in sequence.

4. The camshaft finish grinding positioning device of claim 3, wherein, The clamping module comprises a double transmission member provided with two transmission parts, two clamping plates and two transmission members arranged on the clamping plates; The two clamping plates are slidably connected to the machine body, so that the two transmission members are arranged staggered between the two clamping plates to form a containing space for the transmission part; The two transmission members are in transmission connection with the transmission part, and the other transmission part is in transmission connection with the clamping driver.

5. The camshaft finish grinding positioning device of claim 3, wherein, The rotating transmission unit comprises a ring-shaped transmission member and a support member; The ring-shaped transmission member is in rotation connection with the machine body, one end of the support member is connected with part of the edge of the ring-shaped transmission member, and the other end of the support member extends towards a horizontal direction perpendicular to the positioning hole and is used for supporting the elastic positioning member, so that the end of the elastic positioning member is opposite to the horizontal plane perpendicular to the positioning hole.

6. The camshaft finish grinding positioning device of claim 5, wherein, The rotating positioning module further comprises two magnetically connected magnetic attraction members; One of the magnetic attraction members is connected with the support member, and the other magnetic attraction member is arranged on the machine body.

7. The camshaft finish grinding positioning device of claim 5, wherein, The pose adjusting module comprises an elastic member and a pushing member; The pushing piece is elastically connected to the center of the ring-shaped transmission member by the elastic member, wherein one end of the pushing piece is used for being opposite to the end of the camshaft, and the other end of the pushing piece is used for being in transmission connection with the pose driver.

8. The camshaft finish grinding positioning device of claim 7, wherein, The pose driver is a wedge-shaped block arranged on the lifting support, and the wedge-shaped block has a flat portion and an inclined portion. The flat portion and the inclined portion are arranged opposite to the pushing piece. When the lifting support drives the wedge-shaped block to move towards the pushing piece, the end of the pushing piece slides along the inclined direction of the inclined portion and the horizontal direction of the flat portion in sequence.

9. The camshaft finish grinding positioning device of claim 1, wherein, The machine body is further provided with a waste collecting bin opposite to the camshaft.

10. The camshaft finish grinding positioning device of claim 9, wherein, The opening size of the waste collecting bin gradually changes from large to small from the top to the bottom.

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