阅读说明：本技术 一种凸轮轴抛光系统 (Camshaft polishing system ) 是由 贺潇 于 2021-07-19 设计创作，主要内容包括：本发明公开了一种凸轮轴抛光系统,包括：机架、控制装置、凸轮轴固定装置、抛光装置和砂带输送装置,抛光装置包括抛光立架和抛光组件,抛光组件包括主抛光臂、副抛光臂、限位螺栓、夹紧气缸与抛光轮组；主抛光臂设有两个,两主抛光臂均转动安装于抛光立架,两副抛光臂转动安装于主抛光臂,副抛光臂前端安装有抛光轮组,限位螺栓活动穿设于主抛光臂且与副抛光臂固定连接,限位螺栓套装有第一压缩弹簧；抛光时,两组相对设置的副抛光臂上的抛光轮组对凸轮轴进行抛光,在凸轮凸部与抛光轮组上的砂带接触时,副抛光臂相对主抛光臂转动,抛光轮组向远离凸轮轴的方向移动,减少对凸轮凸部的摩擦,避免抛光过度。(The invention discloses a camshaft polishing system, comprising: the polishing device comprises a polishing vertical frame and a polishing assembly, and the polishing assembly comprises a main polishing arm, an auxiliary polishing arm, a limiting bolt, a clamping cylinder and a polishing wheel set; the two main polishing arms are rotatably arranged on the polishing vertical frame, the two auxiliary polishing arms are rotatably arranged on the main polishing arms, the front ends of the auxiliary polishing arms are provided with polishing wheel sets, the limiting bolts movably penetrate through the main polishing arms and are fixedly connected with the auxiliary polishing arms, and the limiting bolts are sleeved with first compression springs; during polishing, the polishing wheel groups on the two groups of auxiliary polishing arms which are arranged oppositely polish the cam shaft, when the convex part of the cam contacts with the abrasive belt on the polishing wheel group, the auxiliary polishing arms rotate relative to the main polishing arm, the polishing wheel group moves towards the direction far away from the cam shaft, friction on the convex part of the cam is reduced, and excessive polishing is avoided.)

1. A camshaft polishing system, comprising: the polishing device comprises a rack (1), a control device, a camshaft fixing device (2), a polishing device (3) and an abrasive belt conveying device (4), wherein the control device, the camshaft fixing device (2), the polishing device (3) and the abrasive belt conveying device (4) are all arranged on the rack (1), the camshaft fixing device (2), the polishing device (3) and the abrasive belt conveying device (4) are all electrically connected with the control device, the polishing device (3) is located on the side of the camshaft fixing device (2), and the abrasive belt conveying device (4) is connected with the polishing device (3);

the polishing device (3) comprises a polishing vertical frame (31) and a polishing component, wherein the polishing vertical frame (31) is fixed on the rack (1), and the polishing component comprises a main polishing arm (321), an auxiliary polishing arm (322), a limiting bolt (323), a clamping cylinder (324) and a polishing wheel set (325); the two main polishing arms (321) are arranged, the two main polishing arms (321) are rotatably mounted on the polishing vertical frame (31), the auxiliary polishing arms (322) are arranged on the front sides of the two main polishing arms (321), the two auxiliary polishing arms (322) are arranged oppositely up and down, the rear end parts of the auxiliary polishing arms (322) are rotatably connected with the corresponding main polishing arms (321), the polishing wheel sets (325) are mounted at the front ends of the auxiliary polishing arms (322), a polishing space is formed between the two polishing wheel sets (325), the limiting bolts (323) are movably arranged on the main polishing arms (321) in a penetrating mode and fixedly connected with the auxiliary polishing arms (322), the limiting bolts (323) are sleeved with first compression springs (326), and the first compression springs (326) are located between the main polishing arms (321) and the auxiliary polishing arms (322); a clamping cylinder (324) is mounted between the rear sides of the two main polishing arms (321).

2. The camshaft polishing system of claim 1, wherein the polishing wheel set (325) comprises a first polishing wheel (325 a), a second polishing wheel (325 b) and a third polishing wheel (325 c), the first polishing wheel (325 a), the second polishing wheel (325 b) and the third polishing wheel (325 c) are rotatably disposed on the secondary polishing arm (322), the first polishing wheel and the second polishing wheel (325 b) are arranged up and down, and the third polishing wheel (325 c) is disposed behind the second polishing wheel (325 b).

3. A camshaft polishing system as claimed in claim 2, wherein the camshaft fixing device (2) comprises a slide rail (21), a first base (22), a second base (23), a rotating mechanism (24), a driving mechanism (25) and a clamping mechanism (26), the first base (22) and the slide rail (21) are both disposed on the frame (1), the first base (22) is fixedly mounted on one side of the slide rail (21), the second base (23) is slidably mounted on the slide rail (21), the driving mechanism (25) connects the second base (23) with the frame (1), the clamping mechanisms (26) are disposed in two sets and are disposed oppositely, the rotating mechanism (24) is disposed on the first base (22) and is connected with one clamping mechanism (26), and the other clamping mechanism (26) is rotatably disposed on the second base (23).

4. A camshaft polishing system as claimed in claim 3, characterized in that the belt conveyor (4) comprises:

the abrasive belt disc (41) is rotatably arranged at the top of the polishing vertical frame (31);

the winding mechanism (42) comprises winding motors, two rollers (421) and two gears (422), the two rollers (421) are arranged in parallel and can be rotatably arranged on the rack (1), the gears (422) are arranged at the end parts of the two rollers (421), the two gears (422) are meshed, and the winding motors are arranged on the rack (1) and are connected with one of the rollers (421);

the two first guide wheels (43) are arranged and are rotatably arranged on the polishing vertical frame (31), and the two first guide wheels (43) are respectively arranged on the upper side and the lower side of the two main polishing arms (321);

the second guide wheels (44) are arranged in two and are respectively arranged on the opposite sides of the two main polishing arms (321), and the second guide wheels (44) are positioned on the rear side of the polishing wheel set (325) and are rotationally connected with the corresponding main polishing arms (321);

the guide assemblies (45) are arranged into two groups and are respectively arranged at the front sides of the two main polishing arms (321);

the abrasive belt pressing mechanism (46) is positioned above the two main polishing arms (321) and comprises a pressing cylinder (461) and a pressing block (462), the pressing cylinder (461) is arranged on the polishing vertical frame (31), and the pressing block (462) is arranged at the movable end of the pressing cylinder (461).

5. A camshaft polishing system as claimed in claim 4, further comprising an induction detecting device (5), wherein the induction detecting device (5) is disposed at the bottom of the main polishing arm (321) at the lower side and electrically connected to the control device, the induction detecting device (5) comprises a first sensor (51) and a second sensor (52), and the first sensor (51) and the second sensor (52) are spaced apart; an offset detection space through which the abrasive belt (6) passes is formed between the first sensor (51) and the second sensor (52).

6. A camshaft polishing system as claimed in claim 5, characterized in that the first sensor (51) and the second sensor (52) are photoelectric sensors or ultrasonic sensors.

7. A camshaft polishing system as claimed in claim 6, wherein the guide assembly (45) comprises a guide roller seat (451), an electric push rod (452), a guide roller frame (453), a guide roller body (454), a second compression spring (455) and a brake rubber block (456), the guide wheel seat (451) is arranged on the main polishing arm (321) in a sliding manner, the electric push rod (452) is respectively connected with the main polishing arm (321) and the guide wheel seat (451), and is electrically connected with the control component, the guide wheel frame (453) is arranged at one side of the guide wheel seat (451) in a sliding way, the guide wheel body (454) is rotationally arranged at the front side of the guide wheel frame (453), two ends of the second compression spring (455) are connected with the rear side of the guide wheel frame (453) and the other side of the guide wheel seat (451), the brake rubber block (456) is arranged on the main polishing arm (321) and is positioned on the front side of the guide wheel body (454); a guide space for the abrasive belt (6) to pass through is formed between the guide wheel body (454) and the brake rubber block (456).

8. The camshaft polishing system as claimed in claim 7, wherein the main polishing arm (321) is provided with a sliding groove (457), the guide wheel seat (451) is provided with a sliding block matched with the guide wheel seat, the sliding block is slidably clamped in the sliding groove (457), and the electric push rod (452) is arranged in the sliding groove (457).

9. A camshaft polishing system as claimed in claim 8, wherein the first polishing wheel (325 a), the second polishing wheel (325 b), the third polishing wheel (325 c), the first guide wheel (43) and the guide wheel body (454) are provided as rubber-coated wheels.

Technical Field

The invention relates to the field of automobile accessory processing equipment, in particular to a camshaft polishing system.

Background

The cam shaft is one of key parts of an automobile engine, the main body is a cylindrical rod body with the length approximately same as that of the cylinder group, and a plurality of cams are sleeved on the main body and used for driving the valves and controlling the opening and closing actions of the valves.

In the process of polishing the camshaft, the abrasive belt is controlled manually or mechanically to polish the whole cam to enable the surface roughness of the cam to meet the requirement, but due to the special structure of the cam, when the whole cam is polished, the convex part of the cam is easily polished excessively to influence the whole quality of the camshaft.

Disclosure of Invention

The invention aims to provide a camshaft polishing system which can solve the problem of excessive cam polishing.

The invention provides a camshaft polishing system, comprising: the polishing device is positioned on the side of the camshaft fixing device, and the abrasive belt conveying device is connected with the polishing device; the polishing device comprises a polishing vertical frame and a polishing assembly, the polishing vertical frame is fixed on the rack, and the polishing assembly comprises a main polishing arm, an auxiliary polishing arm, a limiting bolt, a clamping cylinder and a polishing wheel set; the polishing device comprises two main polishing arms, two auxiliary polishing arms, two limiting bolts and a polishing vertical frame, wherein the two main polishing arms are rotatably arranged on the polishing vertical frame, the front sides of the two main polishing arms are respectively provided with the auxiliary polishing arm, the two auxiliary polishing arms are oppositely arranged up and down, the rear end parts of the auxiliary polishing arms are rotatably connected with the corresponding main polishing arms, the front ends of the auxiliary polishing arms are provided with polishing wheel sets, a polishing space is formed between the two polishing wheel sets, the limiting bolts movably penetrate through the main polishing arms and are fixedly connected with the auxiliary polishing arms, the limiting bolts are sleeved with first compression springs, and the first compression springs are positioned between the main polishing arms and the auxiliary polishing arms; the clamping cylinder is mounted between the rear sides of the two main polishing arms.

According to the camshaft polishing system, the polishing wheel set comprises a first polishing wheel, a second polishing wheel and a third polishing wheel, the first polishing wheel, the second polishing wheel and the third polishing wheel are rotatably arranged on the auxiliary polishing arm, the first polishing wheel and the second polishing wheel are vertically arranged, and the third polishing wheel is positioned on the rear side of the second polishing wheel.

According to the camshaft polishing system, the camshaft fixing device comprises a sliding rail, a first base, a second base, a driving mechanism, a rotating mechanism and clamping mechanisms, wherein the first base and the sliding rail are arranged on a rack, the first base is fixedly arranged on one side of the sliding rail, the second base is slidably arranged on the sliding rail, the driving mechanism is connected with the second base and the rack, the clamping mechanisms are arranged in two groups and are oppositely arranged, the rotating mechanism is arranged on the first base and is connected with one clamping mechanism, and the other clamping mechanism is rotatably arranged on the second base.

According to the camshaft polishing system of the invention, the belt conveyor comprises: the abrasive belt disc is rotatably arranged at the top of the polishing vertical frame; the belt winding mechanism comprises two belt winding motors, two rollers and gears, the two rollers are arranged in parallel and can be rotatably arranged on the rack, the gears are arranged at the end parts of the two rollers and are meshed with each other, and the belt winding motors are arranged on the rack and are connected with one roller; the two first guide wheels are respectively arranged at the upper side and the lower side of the two main polishing arms; the two second guide wheels are arranged on the opposite sides of the two main polishing arms respectively, are positioned on the rear sides of the polishing wheel sets and are in rotary connection with the corresponding main polishing arms; the guide assemblies are arranged in two groups and are respectively arranged on the front sides of the two main polishing arms; the abrasive belt pressing mechanism is positioned above the two main polishing arms and comprises a pressing cylinder and a pressing block, the pressing cylinder is arranged on the polishing vertical frame, and the pressing block is arranged at the movable end of the pressing cylinder.

The camshaft polishing system further comprises an induction detection device, wherein the induction detection device is arranged at the bottom of the main polishing arm positioned on the lower side and is electrically connected with the control device, the induction detection device comprises a first sensor and a second sensor, and the first sensor and the second sensor are arranged at intervals; the first sensor and the second sensor form an offset detection space for the belt to pass through.

According to the camshaft polishing system, the first sensor and the second sensor are photoelectric sensors or ultrasonic sensors.

According to the camshaft polishing system, the guide assembly comprises a guide wheel seat, an electric push rod, a guide wheel frame, a guide wheel body, a second compression spring and a brake rubber block, the guide wheel seat is arranged on the main polishing arm in a sliding mode, the electric push rod is respectively connected with the main polishing arm and the guide wheel seat and is electrically connected with the control assembly, the guide wheel frame is arranged on one side of the guide wheel seat in a sliding mode, the guide wheel body is rotatably arranged on the front side of the guide wheel frame, two ends of the second compression spring are connected with the rear side of the guide wheel frame and the other side of the guide wheel seat, and the brake rubber block is arranged on the main polishing arm and is located on the front side of the guide wheel body; a guide space for the sand belt to pass through is formed between the guide wheel body and the brake rubber block.

According to the camshaft polishing system, the main polishing arm is provided with a sliding groove, the guide wheel seat is provided with a sliding block matched with the guide wheel seat, the sliding block is slidably clamped in the sliding groove, and the electric push rod is arranged in the sliding groove.

According to the camshaft polishing system, the first polishing wheel, the second polishing wheel, the third polishing wheel, the first guide wheel and the guide wheel body are all arranged to be rubber-coated wheels.

Has the advantages that: through the structure, the camshaft clamp that will need the polishing is between camshaft fixing device, the abrasive band is changed in abrasive band conveyor control, burnishing device polishes the camshaft of fixing, during the polishing, two sets of polishing wheel group that the front end set up on the vice polishing arm of two sets of relative settings are polished the camshaft, when the abrasive band contact on cam convex part and the polishing wheelset, the relative main polishing arm of vice polishing arm rotates, spacing bolt and compression spring carry out spacingly and reset to vice polishing arm, when vice polishing arm rotates, the polishing wheelset removes to the direction of keeping away from the camshaft, reduce the friction to the cam convex part, avoid polishing excessively.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The invention is further described below with reference to the accompanying drawings and examples;

FIG. 1 is a schematic diagram of a camshaft polishing system according to the present invention;

FIG. 2 is a front view of the camshaft fixing device of FIG. 1;

FIG. 3 is a schematic diagram of the belt conveyor of FIG. 1;

FIG. 4 is an enlarged view of portion A of FIG. 1;

FIG. 5 is a schematic view of the guide assembly of FIG. 1;

figure 6 is a schematic view of the guide assembly of figure 5 from another perspective,

fig. 7 is a schematic view of the position relationship between the sensing device and the abrasive belt.

In the figure: 1. the polishing machine comprises a machine frame, 2, a cam shaft fixing device, 21, a sliding rail, 22, a first base, 23, a second base, 24, a rotating mechanism, 25, a driving mechanism, 26, a clamping mechanism, 3, a polishing device, 31, a polishing vertical frame, 321, a main polishing arm, 322, an auxiliary polishing arm, 323, a limiting bolt, 324, a clamping cylinder, 325, a polishing wheel set, 325a first polishing wheel, 352b, a second polishing wheel, 325c, a third polishing wheel, 326, a first compression spring, 4, a belt conveying device, 41, a belt disc, 42, a belt winding mechanism, 421, a roller, 422, a gear, 43, a first guide wheel, 44, a second guide wheel, 45, a guide assembly, 451, a guide wheel seat, 452, an electric push rod, 453, a guide wheel frame, 454, a guide wheel body, 455, a second compression spring, 456, a brake rubber block, 457, a sliding groove, 46, a belt pressing mechanism, 461, a pressing cylinder, 462 and a pressing block, 5. inductive detection device, 51 first sensor, 52 second sensor, 6 abrasive belt.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, greater than, less than, exceeding, etc. are understood as excluding the present numbers, and the above, below, inside, etc. are understood as including the present numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1-7, a camshaft polishing system includes: frame 1, a control device, camshaft fixing device 2, burnishing device 3 and abrasive band conveyor 4 all set up in frame 1, and camshaft fixing device 2, burnishing device 3 and abrasive band conveyor 4 all with controlling means electric connection, the activity and the operation of each part in the polishing system are controlled through controlling means, abrasive band conveyor 4 is connected with burnishing device 3, abrasive band 6 is around adorning on burnishing device 3 through abrasive band conveyor 4, and polish the camshaft through abrasive band 6.

The polishing device 3 comprises a polishing vertical frame 31 and a polishing component arranged on the polishing vertical frame 31, the polishing vertical frame 31 is fixed on the frame 1, and the polishing component comprises a main polishing arm 321, an auxiliary polishing arm 322, a limit bolt 323, a clamping cylinder 324 and a polishing wheel set 325; two main polishing arms 321 are arranged, the two main polishing arms 321 are rotatably mounted on the polishing vertical frame 31, auxiliary polishing arms 322 are arranged on the front sides of the two main polishing arms 321, the two auxiliary polishing arms 322 are arranged up and down oppositely, the rear end parts of the auxiliary polishing arms 322 are rotatably connected with the corresponding main polishing arms 321, a polishing wheel set 325 is mounted at the front ends of the auxiliary polishing arms 322, a limiting bolt 323 movably penetrates through the main polishing arms 321 and is fixedly connected with the auxiliary polishing arms 322, a first compression spring 326 is sleeved on the limiting bolt 323, and the first compression spring 326 is located between the main polishing arms 321 and the auxiliary polishing arms 322; a clamping cylinder 324 is mounted between the rear sides of the two main polishing arms 321. In use, the clamping cylinder 324 opens the front side of the main polishing arm 321, and the camshaft fixing device 2 is controlled to clamp and transfer the camshaft between the two main polishing arms 321 and between the two sub-polishing arms 322 on the front sides of the two main polishing arms 321. Further, in this embodiment, polishing assembly sets up to the multiunit to with the camshaft one-to-one on the camshaft, when having a plurality of camshafts on the camshaft, corresponding installation multiunit polishing assembly realizes that each camshaft polishes simultaneously. The camshaft is controlled to rotate through the camshaft fixing device 2, the camshaft is polished through the polishing wheel sets 325 on the front sides of the two opposite polishing arms 322 during rotation, when the convex parts of the cam on the camshaft rotate to the polishing wheel sets 325 during polishing, the polishing wheel sets 325 are stressed to drive the auxiliary polishing arms 322 to rotate, the polishing wheel sets 325 move in the direction far away from the camshaft, polishing of the convex parts of the cam is reduced, and the effect of avoiding excessive polishing of the convex parts of the cam is achieved; when the convex part of the cam on the cam shaft rotates to pass through the polishing wheel set 325, the auxiliary polishing arm 322 is reset under the action of the limiting bolt 323 and the first compression spring 326, and other parts of the cam are polished.

Preferably, the polishing wheel set 325 includes a first polishing wheel 325a, a second polishing wheel 325b and a third polishing wheel 325c, the first polishing wheel 325a, the second polishing wheel 325b and the third polishing wheel 325c are all rotatably disposed on the sub-polishing arm 322, the first polishing wheel 325a is located on the upper side of the second polishing wheel 325b, and the third polishing wheel 325c is located on the rear side of the second polishing wheel 325 b. The abrasive belt 6 is sequentially wound around the first polishing wheel 325a, the second polishing wheel 325b and the third polishing wheel 325c.

Preferably, the camshaft fixing device 2 includes a sliding rail 21, a first base 22, a second base 23, a driving mechanism 25, a rotating mechanism 24 and a clamping mechanism 26, the first base 22 and the sliding rail 21 are both disposed on the frame 1, the first base 22 is fixedly mounted on one side of the sliding rail 21, the second base 23 is slidably mounted on the sliding rail 21, the driving mechanism 25 is connected with the second base 23 and the frame 1, the clamping mechanisms 26 are disposed in two sets and are arranged oppositely, the rotating mechanism 24 is disposed on the first base 22 and is connected with one of the clamping mechanisms 26, and the other clamping mechanism 26 is rotatably disposed on the second base 23. When the polishing device is used, the driving mechanism 25 drives the second base 23 to move on the slide rail 21, the camshaft is clamped and fixed between the two clamping mechanisms 26 oppositely arranged on the first base 22 and the second base 23, the camshaft is transferred between the two polishing wheel sets 325 of the polishing assembly, and the rotating mechanism 24 controls the clamping mechanisms 26 to drive the camshaft to rotate so as to perform polishing treatment.

The slide rail 21 is provided with at least one slide rail, and the driving mechanism 25 can be a motor, a screw rod and a slide block, or a motor, a synchronous belt pulley, a synchronous belt, or an air cylinder and a slide block. In this embodiment, preferably, the motor is disposed on the frame 1, the slider is disposed at the bottom of the second base 23, and the screw transmission is connected between the motor and the slider, so that the second base 23 can be driven by the driving mechanism 25 to move along the slide rail 21, so as to clamp and fix the camshaft. The rotating mechanism 24 is configured as a rotating motor, the rotating motor is installed on the first base 22, the output end of the rotating motor is connected with the clamping mechanism 26, and the rotating motor drives the clamping mechanism 26 and the camshaft clamped and fixed between the two clamping mechanisms 26 to rotate. The clamping mechanism 26 is arranged to be a clamping type center, two ends of the camshaft are provided with top holes matched with the center, and the center is jacked into the top holes to fix the camshaft when in use.

In some embodiments, the rotating mechanism 24, the driving mechanism 25 and the clamping mechanism 26 are not limited to the embodiments of the present invention, and other mechanism components having the above functions may also be used. For example, the rotating mechanism 24 is configured as a rotating motor, a belt and a belt pulley, the belt pulley rotates the clamping mechanism 26 fixed on the first base 22, the rotating motor is fixedly disposed on the first base 22, the belt is wound on the belt pulley and the rotating motor, when the motor is started, the belt pulley is driven to rotate by the belt, and then the camshaft fixed between the clamping mechanism 26 and the two clamping mechanisms 26 is driven to rotate.

Preferably, belt conveyor 4 comprises belt reel 41, belt take-up mechanism 42, first guide wheel 43, second guide wheel 44, guide assembly 45 and belt hold-down mechanism 46. Wherein, abrasive belt disc 41 is rotatably arranged on the top of polishing vertical frame 31 for placing abrasive belt 6. Tape mechanism 42 includes the winding motor, roller 421 and gear 422, and roller 421 rotationally installs in frame 1, and the tip of two rollers 421 all is provided with gear 422, and two gears 422 mesh, and the winding motor sets up in frame 1 to be connected with one of them roller 421, and two rollers 421 press from both sides abrasive band 6 between them, drives gear 422 and roller 421 through the winding motor and rotates, drives abrasive band 6 and rotates in burnishing device 3, is convenient for change the abrasive band 6 after the polishing automatically. The two first guide wheels 43 are arranged on the polishing vertical frame 31 and are both rotatably arranged, and the two first guide wheels 43 are respectively arranged on the upper side and the lower side of the two main polishing arms 321 and are used for guiding and fixing the abrasive belt 6; the second guide wheels 44 are disposed at two opposite sides of the two main polishing arms 321, and the second guide wheels 44 are disposed at the rear side of the polishing wheel set 325 and rotatably connected to the corresponding main polishing arms 321 for guiding and fixing the abrasive belt 6. The guide assemblies 45 are provided in two sets and are disposed at the front sides of the two main polishing arms 321. The belt pressing mechanism 46 includes a pressing cylinder 461 and a pressing block 462, the pressing cylinder 461 is disposed on the polishing stand 31, and the pressing block 462 is disposed at the movable end of the pressing cylinder 461 to fasten the belt 6, so that the belt 6 is not prone to deviation. By the above-mentioned device, the abrasive belt 6 is sequentially wound around the abrasive belt pressing mechanism 46, the first guide wheel 43 on the upper main polishing arm 321, the guide assembly 45 on the upper main polishing arm 321, the polishing wheel set 325 on the upper main polishing arm 321, the second guide wheel 44 on the upper polishing arm, the second guide wheel 44 on the lower main polishing arm 321, the polishing wheel set 325 on the lower main polishing arm 321, the guide assembly 45 on the lower main polishing arm 321, the first guide wheel 43 on the lower polishing arm, and the winding mechanism 42 from the abrasive belt disc 41.

Further, the camshaft polishing system further includes an induction detection device 5, the induction detection device 5 is disposed at the bottom of the main polishing arm 321 located at the lower side and electrically connected to the control device, the induction detection device 5 includes a first sensor 51 and a second sensor 52, and the first sensor 51 and the second sensor 52 are disposed at an interval; between first sensor 51 and second sensor 52 a deflection detection space is formed through which sanding belt 6 passes, first sensor 51 generating an electrical signal from second sensor 52 to a control device when sanding belt 6 is deflected. For example, if sanding belt 6 does not enter the detection space of first sensor 51 or second sensor 52 during normal movement, sanding belt 6 will immediately enter the detection space of first sensor 51 when it is biased towards first sensor 51, and first sensor 51 will generate an electrical signal that is transmitted to the control device.

Preferably, the first sensor 51 and the second sensor 52 are photoelectric sensors or ultrasonic sensors.

The guide assembly 45 comprises a guide wheel seat 451, an electric push rod 452, a guide wheel frame 453, a guide wheel body 454, a second compression spring 455 and a brake rubber block 456, the guide wheel seat 451 is slidably disposed on the main polishing arm 321, the electric push rod 452 is respectively connected with the main polishing arm 321 and the guide wheel seat 451 and electrically connected with the control assembly, the guide wheel frame 453 is slidably disposed on one side of the guide wheel seat 451, the guide wheel body 454 is rotatably mounted on the front side of the guide wheel frame 453, two ends of the second compression spring 455 are connected with the rear side of the guide wheel frame 453 and the other side of the guide wheel seat 451, the brake rubber block 456 is mounted on the main polishing arm 321 through a mounting frame and is located on the front side of the guide wheel body 454, that is, the mounting frame is fixedly disposed on the main polishing arm 321, and the brake rubber block 456 is fixedly disposed on the mounting frame; a guide space for the abrasive belt 6 to pass through is formed between the guide wheel body 454 and the brake rubber block 456, when the abrasive belt 6 deflects in the polishing process, the control system controls the electric push rod 452 to push the guide wheel seat 451, and the guide assembly 45 adjusts the abrasive belt 6 to return the abrasive belt 6 to normal; when the abrasive belt 6 is broken in the polishing process, the stress of the guide wheel body 454 is suddenly reduced, the second compression spring 455 pushes the guide wheel frame 453 and the guide wheel body 454, and the guide wheel body 454 and the brake rubber block 456 are matched to clamp the broken abrasive belt 6 therebetween, so that the abrasive belt 6 is prevented from being loosened in the whole and is convenient to subsequently re-apply the belt.

Preferably, main polishing arm 321 is provided with a sliding slot 457, guide wheel seat 451 is provided with a sliding block adapted to the sliding slot 457, the sliding block is slidably engaged with the sliding slot 457, electric push rod 452 is disposed in the sliding slot 457, and the movable end of electric push rod 452 is connected to guide wheel seat 451, so that electric push rod 452 can push guide wheel seat 451 to adjust abrasive belt 6.

Preferably, the first polishing wheel 325a, the second polishing wheel 325b, the third polishing wheel 325c, the first guide wheel 43 and the guide wheel body 454 in the embodiment are all provided as rubber coated wheels, so that the wear resistance of the whole camshaft polishing system is improved.

Furthermore, the camshaft polishing system also comprises polishing solution devices, wherein the polishing solution devices are arranged into a plurality of groups, are in one-to-one correspondence with the polishing assemblies and are arranged above the polishing assemblies, and polishing solution is added to rinse the camshaft during polishing, so that the polishing speed is increased, and the polishing quality is improved.

Preferably, the control device in this embodiment is configured as a PLC control device, and sets relevant parameters through PLC programming, so as to control the whole camshaft polishing system.

The invention provides a camshaft polishing system, through the structure, a camshaft to be polished is clamped between camshaft fixing devices 2, an abrasive belt 6 is controlled and replaced by an abrasive belt conveying device 4, a fixed camshaft is polished by a polishing device 3, two groups of polishing wheel sets 325 arranged at the front ends of two groups of oppositely arranged auxiliary polishing arms 322 polish the camshaft, when a cam convex part is contacted with the abrasive belt 6 on the polishing wheel sets 325, the auxiliary polishing arms 322 rotate relative to a main polishing arm 321, a limiting bolt 323 and a compression spring limit and reset the auxiliary polishing arms 322, and when the auxiliary polishing arms 322 rotate, the polishing wheel sets 325 move in the direction far away from the camshaft, so that friction on the cam convex part is reduced, and excessive polishing is avoided.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.