Fixing device for camshaft grinding

Abstract

The utility model relates to the technical field of fixing tools, and particularly discloses a camshaft grinding fixing device which comprises a base, a lifting frame, a fixing plate, a sliding plate, a sliding block and a grinding wheel, the lifting frame is slidably connected to the base in the vertical direction through a first linear driving piece, and the fixing plate is fixedly arranged on the lifting frame; the fixing plate is rotationally connected with a rotating table in the transverse direction through a first rotation driving mechanism, and the rotating table is provided with a clamping mechanism used for clamping the cam shaft. The sliding plate is slidably connected to the lifting frame through an adjusting mechanism, and the sliding plate is rotationally connected with an abutting block in the transverse direction. The sliding block is slidably connected to the base, the grinding wheel is rotationally connected to the sliding block, a second rotation driving mechanism used for driving the grinding wheel to rotate is arranged on the base, and a second linear driving piece used for driving the sliding block is arranged on the base. The camshaft grinding and polishing device has the effect that the problems that when a worker grinds and polishes the camshaft, operation is tedious, the labor load is increased, the machining precision is not high, and the camshaft is prone to being damaged are solved.

Description

Technical Field

[0001] This application relates to the field of tooling technology, and in particular to a fixing device for grinding camshafts. Background Technology

[0002] The camshaft is a component in a piston engine, and its function is to control the opening and closing of the valves. Because the valve movement pattern affects the power and operating characteristics of an engine, camshaft design plays a very important role in the engine design process.

[0003] After initial machining, camshafts typically require grinding and polishing of their outer peripheral walls. Currently, most camshaft grinding and polishing is still done by workers using handheld polishing machines. However, the outer diameter of camshafts varies along their length, requiring workers to frequently adjust the distance between the grinding wheel and the camshaft during grinding and polishing. This not only increases the workload and is cumbersome but also results in low machining accuracy and can easily damage the camshaft. Utility Model Content

[0004] To address the issues of cumbersome operation and increased labor load during camshaft grinding and polishing, as well as low processing accuracy and easy damage to the camshaft, this application provides a fixing device for camshaft grinding.

[0005] The camshaft grinding fixing device provided in this application adopts the following technical solution:

[0006] A fixing device for grinding camshafts includes a base, a lifting frame, a fixing plate, a sliding plate, a slider, and a grinding wheel. The lifting frame is slidably connected to the base vertically, and the base is provided with a first linear drive for driving the lifting frame to move. The fixing plate is fixed to the lifting frame, and a rotating platform is rotatably connected to the fixing plate horizontally. The rotating platform is provided with a clamping mechanism for clamping the camshaft, and the base is provided with a first rotary drive mechanism for driving the rotating platform to rotate. The sliding plate is slidably connected to the lifting frame horizontally, and a pressing block is rotatably connected to the sliding plate horizontally. The rotation axis of the pressing block is coaxial with the rotation axis of the rotating platform. The lifting frame is provided with an adjustment mechanism for adjusting the position of the sliding plate. The slider is slidably connected to the base along the sliding direction of the sliding plate, and the grinding wheel is rotatably connected to the slider. The base is provided with a second rotary drive mechanism for driving the grinding wheel to rotate, and the base is provided with a second linear drive for driving the slider.

[0007] By adopting the above technical solution, the rotating platform on the fixed plate can rotate horizontally through the first rotary drive mechanism, stably fixing the camshaft with the clamping mechanism and rotating together with the rotating platform. The sliding plate can slide laterally with the help of the adjustment mechanism, allowing the pressure block to accurately position the camshaft and limit its axial movement. Working in conjunction with the rotating platform, it ensures the camshaft maintains a stable posture during grinding. Simultaneously, the slider moves along the sliding direction of the sliding plate under the drive of the second linear drive component, while the grinding wheel is driven to rotate at high speed by the second rotary drive mechanism, ultimately completing the precise grinding operation on the camshaft surface. The lifting frame can move vertically along the base under the action of the first linear drive component, thereby precisely adjusting the distance between the camshaft and the grinding wheel, ensuring the polishing effect and improving the problem that workers face when grinding and polishing camshafts, which is not only cumbersome and increases labor load, but also has low processing accuracy and is prone to camshaft damage.

[0008] Optionally, the second rotary drive mechanism includes a rotary motor, a rotary rod, a drive gear, and a driven gear. The rotary rod is rotatably connected to the base about the sliding direction of the slider. The rotary motor is mounted on the base, and the rotating shaft of the rotary motor is connected to the rotary rod. A rotary cylinder is rotatably connected to the slider. An anti-rotation block is provided on the inner wall of the rotary cylinder. The rotary rod is inserted into the rotary cylinder. A groove is formed on the peripheral wall of the rotary rod along its own length direction, and the anti-rotation block is slidably engaged in the groove. The drive gear is coaxially connected to the rotary cylinder, and the driven gear is coaxially connected to the grinding wheel. The drive gear and the driven gear mesh.

[0009] By adopting the above technical solution, when the rotating motor starts, its rotating shaft drives the rotating rod to rotate. Since the anti-rotation block on the inner wall of the rotating cylinder is slidably locked in the groove on the peripheral wall of the rotating rod, the rotation of the rotating rod will drive the rotating cylinder to rotate synchronously. The driving gear is coaxially connected to the rotating cylinder, so the rotation of the rotating cylinder will drive the driving gear to rotate. The driving gear meshes with the driven gear, thereby transmitting the rotational motion to the driven gear, which in turn drives the grinding wheel coaxially connected to the driven gear to rotate. This transmission method ensures stable and reliable power transmission, while realizing the efficient and smooth rotation of the grinding wheel to complete the grinding work.

[0010] Optionally, the first rotary drive mechanism includes a first synchronous pulley, a second synchronous pulley, a synchronous belt, and a tensioning assembly. The first synchronous pulley is coaxially connected to the rotating rod, and the second synchronous pulley is coaxially connected to the rotating platform. The synchronous belt is wound around both the first and second synchronous pulleys. The tensioning assembly is mounted on a fixed plate and is used to adaptively adjust the tension of the synchronous belt.

[0011] By adopting the above technical solution, and by setting up a first synchronous pulley, a second synchronous pulley, and a synchronous belt wrapped around them, it is ensured that power can be efficiently transmitted from the rotating rod to the rotating table, thereby driving the camshaft on the clamping mechanism to rotate stably, improving the positioning accuracy and stability during the grinding process. The introduction of the tensioning component further optimizes the performance of the synchronous belt drive system, and can automatically adjust the tension of the synchronous belt when the lifting frame is raised or lowered, avoiding power transmission failure caused by the loose synchronous belt or wear problems caused by excessive tension, extending the service life of the equipment and ensuring stable operation.

[0012] Optionally, the tensioning assembly includes a movable block, a compression spring, and a tensioning wheel. The movable block is slidably connected to the fixed plate, the tensioning wheel is rotatably connected to the movable block, and the timing belt is also wound around the tensioning wheel. One end of the compression spring is connected to the movable block, and the other end of the compression spring is connected to the fixed plate. The compression spring tends to press the tensioning wheel against the timing belt.

[0013] By adopting the above technical solution, the automatic adjustment function of the timing belt tension is realized. Specifically, the elastic force of the compression spring ensures that the tensioning wheel always maintains pressure on the timing belt, thereby avoiding the problem of reduced transmission efficiency due to timing belt slack. The structure is simple and reliable, effectively improving the working stability and service life of the entire fixing device.

[0014] Optionally, the first linear drive component includes a threaded rod and a servo motor. The threaded rod is rotatably connected to the base about a vertical direction. The threaded rod passes through the lifting frame and is threadedly connected to the lifting frame. The servo motor is mounted on the base, and the rotating shaft of the servo motor is connected to the threaded rod.

[0015] By adopting the above technical solution, a servo motor drives the threaded rod to rotate. Since the threaded rod is threadedly connected to the lifting frame, precise vertical movement of the lifting frame is achieved. This design ensures the height adjustability of the camshaft during the grinding process, improving the equipment's adaptability and operational accuracy. Simultaneously, the threaded transmission method provides self-locking performance, maintaining the lifting frame's stable position during power outages or when operation is stopped, thus enhancing safety.

[0016] Optionally, the clamping mechanism includes a first clamping block, a second clamping block, and a double-ended lead screw. The double-ended lead screw is radially rotatably connected to the rotating platform. The first clamping block and the second clamping block are slidably connected to the rotating platform along the length of the double-ended lead screw. The two ends of the double-ended lead screw are respectively threaded onto the first clamping block and the second clamping block. The first clamping block and the second clamping block are connected to an arc-shaped clamping block on their respective sides via a connecting rod.

[0017] By adopting the above technical solution, the double-ended lead screw allows the first and second clamping blocks to move in opposite directions or in the opposite direction during rotation, thereby adapting to camshafts of different diameters; the arc-shaped clamping block design increases the contact area with the camshaft, improves clamping stability, effectively prevents the camshaft from shifting or shaking during grinding, and ensures grinding accuracy.

[0018] Optionally, the adjustment mechanism includes an adjustment bolt, a locking groove is provided on the lifting frame along the sliding direction of the sliding plate, a locking block is provided at the bottom of the sliding plate, the locking block is slidably locked in the locking groove, the adjustment bolt is threadedly connected to the lifting frame along the sliding direction of the sliding plate, and the threaded end of the adjustment bolt is used to abut against the locking block.

[0019] By adopting the above technical solution, when the pressure block is pressed against one end of the camshaft, the design of the adjusting bolt allows the operator to easily adjust the position of the sliding plate, and by tightening the adjusting bolt so that its threaded end abuts against the locking block, the sliding plate is firmly fixed in the required position, which enhances the reliability of workpiece fixation during the grinding process, thereby improving grinding accuracy and work efficiency.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. By setting a vertically movable lifting frame, a rotatable rotating table, and a clamping mechanism, the camshaft can be polished by a high-speed rotating grinding wheel when the rotating table rotates. At the same time, the lifting frame is driven by the first linear drive to move the camshaft up and down, so that the fixing device of this application can accurately grind parts with different outer diameters on the camshaft. This improves the problem that when workers grind and polish the camshaft, not only is the operation cumbersome and labor load increased, but the processing accuracy is also low and the camshaft is easily damaged.

[0022] 2. The matching design of the first clamping block, the second clamping block, the double-ended lead screw and the arc-shaped clamping block enables the camshaft to be firmly clamped and is suitable for workpieces of different specifications and sizes, thus improving the versatility and applicability of the equipment.

[0023] 3. The coordinated arrangement of the first synchronous pulley, the second synchronous pulley, the synchronous belt, and the tensioning assembly ensures that power can be efficiently transmitted from the rotating rod to the rotating table, thereby driving the camshaft on the clamping mechanism to rotate stably. This improves the positioning accuracy and stability during the grinding process, and eliminates the need for an additional power source, saving on power costs. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the axonal structure of an embodiment of this application;

[0026] Figure 2 This is a cross-sectional structural diagram of an embodiment of this application;

[0027] Figure 3 This is a left view of an embodiment of this application.

[0028] Reference numerals: 1. Base; 11. Limiting through hole; 12. Sliding groove; 13. Rotating motor; 14. Rotating rod; 141. Slot; 142. First synchronous pulley; 15. Driving gear; 16. Driven gear; 2. Lifting frame; 21. Limiting rod; 22. Engaging groove; 23. Adjusting bolt; 3. Fixing plate; 31. Rotating through hole; 32. Rotating table; 321. Second synchronous pulley; 322. Synchronous belt; 323. First clamp 324. Holding block; 325. Second clamping block; 326. Double-ended lead screw; 327. Arc-shaped clamping block; 328. Receiving groove; 329. Connecting rod; 320. Moving block; 321. Compression spring; 322. Tensioning wheel; 43. Sliding plate; 44. Engaging block; 45. Pressing block; 56. Sliding block; 57. Rotating cylinder; 58. Anti-rotation block; 69. Grinding wheel; 70. First linear drive component; 71. Threaded rod; 72. Servo motor; 80. Second linear drive component. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0030] This application discloses a fixing device for grinding camshafts. (Refer to...) Figure 1-2 The camshaft grinding fixing device includes a base 1, a lifting frame 2, a fixing plate 3, a sliding plate 4, a slider 5, and a grinding wheel 6. Specifically, the base 1, as the basic support part of the entire device, is made of high-strength steel to ensure the stability and durability of the overall structure. Multiple limiting through holes 11 are vertically opened on the upper edge of the base 1. Limiting rods 21 are welded and fixed to the bottom of the lifting frame 2 corresponding to each limiting through hole 11. The lifting frame 2 is slidably connected to the base 1 vertically by inserting the limiting rods 21 into the limiting through holes 11. A first linear drive component 7 for driving the movement of the lifting frame 2 is installed on the base 1.

[0031] The fixing plate 3 is fixedly installed vertically at one end of the top length of the lifting frame 2. A rotating through hole 31 is opened horizontally on the side wall of the fixing plate 3. A rotating table 32 is rotatably connected in the rotating through hole 31 through a bearing. The rotating table 32 rotates around the axis of the rotating through hole 31. The rotating table 32 is equipped with a clamping mechanism for clamping one end of the camshaft, and the base 1 is provided with a first rotary drive mechanism for driving the rotating table 32 to rotate.

[0032] The upper surface of the lifting frame 2 has a locking groove 22 along its length. A locking block 41 is welded and fixed to the bottom of the sliding plate 4, and the locking block 41 is slidably locked within the locking groove 22. The lifting frame 2 is equipped with an adjustment mechanism for adjusting the position of the sliding plate 4. Furthermore, a pressing block 42 is rotatably connected to the sliding plate 4, and the rotation axis of the pressing block 42 is coaxial with the rotation axis of the rotating table 32. The adjustment mechanism specifically uses an adjusting bolt 23, which is threaded onto the lifting frame 2 along the sliding direction of the sliding plate 4. The threaded end of the adjusting bolt 23 abuts against the locking block 41. When fixing the camshaft, one end of the camshaft is first fixed to the rotating table 32 using a clamping mechanism. Then, the position of the sliding plate 4 is adjusted so that the pressing block 42 abuts against the other end of the camshaft. Next, the adjusting bolt 23 is tightened so that the threaded end of the adjusting bolt 23 abuts against the side wall of the locking block 41, thereby limiting the axial movement of the camshaft and achieving overall stable fixing of the camshaft.

[0033] A sliding groove 12 is formed in the middle of the upper surface of the base 1 along its length. The slider 5 is slidably engaged in the sliding groove 12. The base 1 is provided with a second linear drive 8 for driving the slider 5. In this application, the second linear drive 8 is a telescopic cylinder, which is fixedly installed on the base 1 laterally. The output end of the telescopic cylinder is connected to the slider 5. The grinding wheel 6 is rotatably connected to the slider 5. The rotation axis of the grinding wheel 6 is parallel to the length direction of the base 1. The base 1 is provided with a second rotary drive mechanism for driving the grinding wheel 6 to rotate.

[0034] When the outer peripheral wall of the fixed camshaft needs to be polished, the grinding wheel 6 is driven to rotate rapidly by the second rotary drive mechanism to polish a certain part of the camshaft. Then, the rotating table 32 is driven to rotate by the first rotary drive mechanism, which in turn drives the camshaft to rotate, thus polishing the entire circumference of a certain part of the camshaft. Next, the slider 5 is driven to move by the second linear drive 8 to complete the polishing of the entire camshaft. During the movement of the slider 5, the lifting frame 2 can be raised and lowered by the first linear drive 7 according to the outer diameter of different parts of the camshaft, which adaptively and precisely adjusts the distance between the outer peripheral wall of the camshaft and the grinding wheel 6, thereby improving the polishing accuracy and avoiding damage to the camshaft caused by improper distance between the grinding wheel 6 and the camshaft. This improves the problem that when workers polish camshafts, the operation is not only cumbersome and increases the labor load, but also the processing accuracy is not high and it is easy to damage the camshaft.

[0035] For example, the second rotary drive mechanism includes a rotary motor 13, a rotating rod 14, a driving gear 15, and a driven gear 16. The rotating rod 14 is inserted into the base 1 along the sliding direction of the slider 5, and is rotatably connected to the base 1 about its own length. The rotary motor 13 is bolted to the base 1 laterally, and the rotating shaft of the rotary motor 13 is coaxially connected to the rotating rod 14. A rotating cylinder 51 is rotatably connected to the slider 5. The rotating rod 14 is coaxially inserted into the rotating cylinder 51. An anti-rotation block 52 is provided on the inner wall of the rotating cylinder 51. A slot 141 is provided on the rotating rod 14 corresponding to the anti-rotation block 52, and the anti-rotation block 52 is slidably locked in the slot 141. When the rotary motor 13 is started, it drives the rotating rod 14 to rotate, which in turn drives the rotating cylinder 51 to rotate synchronously under the action of the anti-rotation block 52. The driving gear 15 is coaxially connected to the rotating cylinder 51, and the driven gear 16 is coaxially connected to the grinding wheel 6. The driving gear 15 and the driven gear 16 mesh. When the rotating cylinder 51 rotates, it synchronously drives the grinding wheel 6 to rotate under the transmission of the driving gear 15 and the driven gear 16, thereby achieving the grinding of the outer peripheral wall of the camshaft.

[0036] Specifically, the first linear drive component 7 includes a threaded rod 71 and a servo motor 72. The threaded rod 71 is rotatably connected to the base 1, and the servo motor 72 is fixed to the bottom of the mounting. The rotation shaft of the servo motor 72 is fixedly connected to the threaded rod 71. The threaded rod 71 passes through the lifting frame 2 and is threadedly connected to the lifting frame 2. Starting the servo motor 72 drives the threaded rod 71 to rotate, which synchronously drives the lifting frame 2 to rise and fall. Driving the lifting frame 2 through the threaded connection between the threaded rod 71 and the lifting frame 2 makes the lifting of the lifting frame 2 more stable and reliable, and with higher precision, thus helping to improve grinding accuracy.

[0037] Furthermore, refer to Figure 3The first rotary drive mechanism includes a first synchronous pulley 142, a second synchronous pulley 321, a synchronous belt 322, and a tensioning assembly. The first synchronous pulley 142 is coaxially connected to the rotating rod 14, and the second synchronous pulley 321 is coaxially connected to the rotating table 32. The synchronous belt 322 is wound around both the first synchronous pulley 142 and the second synchronous pulley 321. The tensioning assembly is mounted on the fixed plate 3 and is used to adjust the tension of the synchronous belt 322. When the rotating motor 13 drives the rotating rod 14 to rotate, the transmission of the first synchronous pulley 142, the second synchronous pulley 321, and the synchronous belt 322 will cause the synchronous belt 322 to rotate, thereby causing the camshaft to rotate synchronously with the rotating table 32 while being polished by the grinding wheel 6, thus completing the full-circle polishing operation of the camshaft. No additional power source is required, saving power costs. The tensioning component allows the lifting frame 2 to automatically adjust the tension of the synchronous belt 322 during lifting, avoiding power transmission failure caused by slackness of the synchronous belt 322 or wear caused by excessive tension, thus extending the service life of the equipment and ensuring stable operation.

[0038] Specifically, the tensioning assembly includes a movable block 33, a compression spring 34, and a tensioning wheel 35. The movable block 33 is laterally slidably connected to the side of the fixed plate 3 opposite to the sliding plate 4. The tensioning wheel 35 is rotatably connected to the movable block 33, and the synchronous belt 322 is also wound around the tensioning wheel 35. One end of the compression spring 34 is connected to the movable block 33, and the other end of the compression spring 34 is connected to the fixed plate 3. The compression spring 34 is in a compressed state, which keeps the tensioning wheel 35 pressed against the synchronous belt 322, thereby achieving the function of adaptively adjusting the tension of the synchronous belt 322.

[0039] In addition, refer to Figure 1-2The clamping mechanism specifically includes a first clamping block 323, a second clamping block 324, a double-ended lead screw 325, and an arc-shaped clamping block 326. A receiving groove 327 is provided on the side of the rotating table 32 near the sliding plate 4. The double-ended lead screw 325 is radially rotatably connected to the rotating table 32. The two ends of the double-ended lead screw 325 are respectively passed through the first clamping block 323 and the second clamping block 324, and both ends of the double-ended lead screw 325 are threadedly connected to the first clamping block 323 and the second clamping block 324. The first clamping block 323 and the second clamping block 324 are connected to a connecting rod 328 along the rotating table 32 on the side of the first clamping block 323 and the second clamping block 324 that are close to each other. The two connecting rods 328 are coaxially arranged and the connecting rods 328 pass through the peripheral wall of the rotating table 32 and are inserted into the receiving groove 327. The arc-shaped clamping block 326 is respectively connected to the side of the two connecting rods 328 that are close to each other. Rotating the double-ended lead screw 325 causes the first clamping block 323 and the second clamping block 324 to tend to rotate with the double-ended lead screw 325. However, due to the restriction of the connecting rod 328, the two blocks cannot rotate. This allows rotating the double-ended lead screw 325 to drive the first clamping block 323 and the second clamping block 324 to move closer or further apart, thereby driving the two arc-shaped clamping blocks 326 to move closer or further apart, thus achieving clamping and fixing of the peripheral wall at the end of the camshaft. The structure is relatively simple, and the clamping and fixing method is stable and reliable.

[0040] The implementation principle of the camshaft grinding fixing device in this embodiment is as follows: In use, one end of the camshaft is first inserted into the receiving groove 327 of the rotating table 32. Then, the double-ended lead screw 325 is rotated to drive the two arc-shaped clamping blocks 326 to approach the camshaft and clamp and fix them to the peripheral wall of the camshaft, thus fixing one end of the camshaft. Next, the position of the sliding plate 4 is adjusted so that the pressing block 42 on the sliding plate 4 presses against the end of the other end of the camshaft. The adjusting bolt 23 is tightened so that the threaded end of the adjusting bolt 23 presses against the side wall of the locking block 41, thereby fixing the position of the sliding plate 4. At this time, the camshaft can be completely locked. Then, the rotating motor 13 is started to drive the rotating rod 14 to rotate, which, under the drive of the driving gear 15 and the driven gear 16, drives the grinding wheel 6 to rotate rapidly. At the same time, the first synchronous pulley 142, the second synchronous pulley 321 and the synchronous belt 322 drive the rotating table 32 to rotate, thereby synchronously driving the camshaft to rotate and achieving grinding and polishing of the entire camshaft; finally, the sliding block 5 is moved by the telescopic cylinder to achieve grinding operations along the entire length of the camshaft.

[0041] When it is necessary to adjust the distance between the camshaft and the grinding wheel 6 to accommodate grinding operations of different diameters on different parts of the camshaft, simply drive the threaded rod 71 to rotate via the servo motor 72. This will drive the lifting frame 2 to rise and fall, thereby raising and lowering the camshaft and achieving the function of adjusting the distance between the camshaft and the grinding wheel 6. This improves upon the problem that when workers grind and polish camshafts, the operation is not only cumbersome and increases the labor load, but also the processing accuracy is low and it is easy to damage the camshaft.

[0042] The above are all optional embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A camshaft grinding fixture characterized by: The utility model relates to a kind of camshaft grinding machine, including base (1), lifting frame (2), fixed plate (3), sliding plate (4), slider (5) and grinding wheel (6), the lifting frame (2) is connected on base (1) along vertical sliding, the base (1) is equipped with the first linear drive (7) for driving lifting frame (2) movement;The fixed plate (3) is fixed on lifting frame (2), the fixed plate (3) is rotatably connected with rotating table (32) around transverse, the rotating table (32) is equipped with the clamping mechanism for clamping camshaft, the base (1) is equipped with the first rotary drive mechanism for driving rotating table (32) rotation;The sliding plate (4) is slidably connected on lifting frame (2) along transverse, the sliding plate (4) is rotatably connected with abutting block (42) around transverse, the abutting block (42) rotation axis is coaxial with rotating table (32) rotation axis, the lifting frame (2) is equipped with the adjusting mechanism for adjusting the position of sliding plate (4);The slider (5) is slidably connected on base (1) along sliding plate (4) sliding direction, the grinding wheel (6) is rotatably connected on slider (5), the base (1) is equipped with the second rotary drive mechanism for driving grinding wheel (6) rotation, the base (1) is equipped with the second linear drive (8) for driving slider (5).

2. A device for holding a camshaft during grinding according to claim 1, characterized in that: The second rotary drive mechanism includes rotating motor (13), rotating rod (14), driving gear (15) and driven gear (16), the rotating rod (14) is rotatably connected on base (1) around slider (5) sliding direction, the rotating motor (13) is arranged on base (1), and the rotating shaft of the rotating motor (13) is connected with rotating rod (14);Rotating cylinder (51) is rotatably connected on slider (5), the inner wall of rotating cylinder (51) is equipped with stop block (52), rotating rod (14) is inserted in rotating cylinder (51), and the stop block (52) is slidably connected in the clamping groove (141) on the wall of rotating rod (14) along its length direction;Driving gear (15) is coaxially connected with rotating cylinder (51), and driven gear (16) is coaxially connected with grinding wheel (6), and driving gear (15) and driven gear (16) are engaged.

3. A device for holding a camshaft during grinding according to claim 2, characterized in that: The first rotary drive mechanism includes first synchronous wheel (142), second synchronous wheel (321), synchronous belt (322) and tensioning assembly, the first synchronous wheel (142) is coaxially connected on rotating rod (14), the second synchronous wheel (321) is coaxially connected on rotating table (32), and the synchronous belt (322) is coaxially connected on the first synchronous wheel (142) and the second synchronous wheel (321);The tensioning assembly is arranged on fixed plate (3), and the tensioning assembly is used for adaptively adjusting the tightness of synchronous belt (322).

4. A device according to claim 3, wherein: The tensioning assembly comprises a moving block (33), a compression spring (34) and a tensioning wheel (35), the moving block (33) is slidingly connected to the fixed plate (3), the tensioning wheel (35) is rotatably connected to the moving block (33), and the synchronous belt (322) is also arranged on the tensioning wheel (35); one end of the compression spring (34) is connected to the moving block (33), and the other end of the compression spring (34) is connected to the fixed plate (3), and the compression spring (34) tends to make the tensioning wheel (35) tightly abut against the synchronous belt (322).

5. The device as claimed in claim 1, wherein: The first linear driving member (7) comprises a threaded rod (71) and a servo motor (72), the threaded rod (71) is rotatably connected to the base (1) in the vertical direction, the threaded rod (71) penetrates through the lifting frame (2) and is threadedly connected with the lifting frame (2), and the servo motor (72) is arranged on the base (1), and the rotating shaft of the servo motor (72) is connected with the threaded rod (71).

6. A device for holding a camshaft for grinding according to claim 1, characterized in that: The clamping mechanism comprises a first clamping block (323), a second clamping block (324) and a double-head screw rod (325), the double-head screw rod (325) is rotatably connected to the rotating table (32) in the radial direction of the rotating table (32), the first clamping block (323) and the second clamping block (324) are slidingly connected to the rotating table (32) along the length direction of the double-head screw rod (325), and the two ends of the double-head screw rod (325) are respectively arranged in the first clamping block (323) and the second clamping block (324) and are threadedly connected with the two clamping blocks; the first clamping block (323) and the second clamping block (324) are both connected with an arc-shaped clamping block (326) through a connecting rod (328) on the side close to each other.

7. The device as claimed in claim 1, wherein: The adjusting mechanism comprises an adjusting bolt (23), the lifting frame (2) is provided with a clamping groove (22) in the sliding direction of the sliding plate (4), the bottom of the sliding plate (4) is provided with a clamping block (41), the clamping block (41) is slidingly clamped in the clamping groove (22), the adjusting bolt (23) is threadedly connected to the lifting frame (2) in the sliding direction of the sliding plate (4), and the threaded end of the adjusting bolt (23) is used for abutting against the clamping block (41).

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