Camshaft finish machining conveying line

Abstract

The invention provides a camshaft finish machining conveying line which comprises a discharging table, a material guiding bin communicated with the bottom of the discharging table and a conveying belt arranged at the bottom of the material guiding bin and used for guiding out workpieces, a plurality of workpiece grooves are formed in the conveying belt and arranged in a matrix mode, and the discharging table comprises at least two discharging guide plates arranged on the side away from the material guiding bin. And the blanking piece is located between the two blanking guide plates and used for guiding the workpieces to be overturned and adjusted, the workpieces are adjusted from the X-axis to the Y-axis through the blanking piece, meanwhile, the workpieces are overturned in the Z-axis direction, the state that the workpieces are located on the conveying belt is that the protruding parts face upwards, regular arrangement of the workpieces is achieved, and the working efficiency is improved. The stable contact between the workpiece and the workpiece groove is guaranteed, so that the workpiece is fixed stably in the conveying process, the workpiece conveying efficiency is improved, and meanwhile the feeding requirement of the subsequent working procedure is met.

Description

Technical Field

[0001] The present invention relates to the technical field of camshaft processing, in particular to a camshaft finishing conveyor line. Background Art

[0002] The camshaft is one of the core components of the internal combustion engine and plays a key role in controlling the opening and closing of the valves in the engine. It has unique characteristics in terms of structure, function, material and processing technology. The camshaft is a slender shaft part with low rigidity and is prone to deformation during processing. There are two types of camshafts, namely one-piece camshafts and split camshafts. The one-piece camshaft is processed by directly cutting and molding the steel into one piece, which has high structural strength, but the production process is relatively complicated and requires high-precision production equipment to support high production costs. The split camshaft uses a steel shaft to connect multiple cams in series, which has good adaptability. The cams on the steel shaft can be disassembled and replaced according to their adaptability, and the production process is relatively simple and efficient.

[0003] Split camshaft machining involves machining the cam and steel shaft separately. Finishing is also a core step in engine manufacturing, directly impacting the valvetrain's precision and durability. Therefore, appropriate measures must be taken during machining, such as evenly distributing stock (steel stock requires less stock than cold-blasted stock, otherwise cracks are more likely to occur), and separating roughing and finishing operations so that deformation caused by roughing can be corrected during finishing. Furthermore, ensuring smooth transitions between roughing and finishing is crucial for cam handling.

[0004] The current finishing conveyor line for cams in split camshafts only realizes the conveyance of a single workpiece, but the cam cannot be positioned and adjusted accordingly during the conveyance process. For example, the flat cam is adjusted to a vertical position to facilitate the finishing and grinding operation at the subsequent workstation, resulting in the cam being relatively messy when it is finally conveyed to the designated workstation and unable to adapt to the processing and unloading at the subsequent workstation. Therefore, in order to ensure the stable conveyance of the cam between the two lines, the current method is to arrange multiple workers at the roughing to finishing workstations, and manually place the cams derived from the roughing workstation according to the unloading requirements of the finishing workstation. However, this operation is more labor-intensive, and the efficiency of manual picking and placing of cams is low, resulting in a decrease in the overall production level of the production line. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a camshaft finishing conveyor line to fundamentally solve the problem that the current camshaft finishing conveyor line in the prior art only realizes single workpiece conveying and cannot perform positioning and corresponding alignment adjustment on the cam.

[0006] A camshaft finishing conveyor line according to an embodiment of the present invention includes a material unloading platform, a material guide cabin connected to the bottom of the material unloading platform, and a conveyor belt disposed at the bottom of the material guide cabin for unloading workpieces. The conveyor belt is provided with a plurality of workpiece slots arranged in a matrix. The unloading platform includes at least two unloading guide plates arranged at one side away from the guide cabin, and a unloading member located between the two unloading guide plates for guiding the workpiece to flip and adjust; The blanking member includes a guide portion provided at the top and located between the two blanking guide plates, a buffer portion extending outwardly along the guide portion toward a side away from the blanking guide plates, and an adjusting member extending outwardly along the buffer portion toward a side away from the guide portion; The guide portion is used to guide the workpiece to rotate along the X-axis toward the Y-axis, and the adjustment member is used to guide the workpiece to rotate along the Z-axis, so that the protruding end of the workpiece faces away from the workpiece groove.

[0007] Furthermore, the guide portion has a spiral design, the top feed port of the guide portion is arranged parallel to the blanking guide plate along the X-axis, and the bottom discharge port of the guide portion is arranged parallel to the workpiece slot along the Y-axis.

[0008] Furthermore, the buffer portion is designed to be S-shaped along the Y-axis direction to slow down the acceleration of the workpiece falling vertically when passing through the buffer portion.

[0009] Furthermore, the adjusting part includes a discharge part connected to the buffer part, and a discharge trough is provided at the bottom of the discharge part for discharging the workpiece along the conveying direction of the conveyor belt. At least two clamps are relatively arranged on one side of the adjusting part close to the discharge trough, and the clamps are used to generate clamping resistance on the workpiece conveying path.

[0010] Furthermore, when the raised portion of the workpiece is in contact with the workpiece groove, the conveying driving force of the conveyor belt is less than the clamping resistance of the clamp, so that the workpiece is driven to flip with the clamp as the center of the circle and driven by the conveyor belt.

[0011] Furthermore, when the side of the workpiece away from the raised portion is in contact with the workpiece slot, the conveying driving force of the conveyor belt is greater than the clamping resistance of the clamp, so that the workpiece is located in the workpiece slot and moves in the conveying direction of the conveyor belt.

[0012] Furthermore, it also includes a workpiece guide assembly arranged on the top of the conveyor belt, the workpiece guide assembly includes a fixed platform fixedly connected to the edges of both sides of the conveyor belt, and a guide member movably embedded in the fixed platform, and a guide groove is provided at the bottom of the fixed platform for the guide member to contact the workpiece.

[0013] Furthermore, the guide member is used to guide the direction of the protrusion of the workpiece, and the guide member includes a driving member at the top, a first linkage gear arranged at the bottom of the driving member and transmission connected thereto, and a guide group respectively arranged on both sides of the first linkage gear and transmission connected thereto.

[0014] Furthermore, the driving member includes a driving gear movably connected to the top of the fixing platform, and a guide lever extending radially from the driving gear toward a side away from the first linkage gear.

[0015] Furthermore, there are two guide groups, each including a second linkage gear and a third linkage gear transmission-connected to both sides of the first linkage gear, and guide ends respectively arranged on the second linkage gear and the third linkage gear facing away from the first linkage gear.

[0016] Compared with the prior art: the camshaft finishing conveyor line in the above embodiment of the present invention, after the workpiece is flatly guided out in the previous process, the adjustment from the X-axis to the Y-axis is implemented through the guide part, and then the workpiece is flipped along the Z-axis direction through the adjustment part in conjunction with the conveyor belt, so that the workpiece is located on the conveyor belt with the raised part facing upward, realizing the regulated arrangement of the workpiece and ensuring the stable contact between the workpiece and the workpiece groove, thereby improving the fixation and stability of the workpiece during the transmission process, and also adapting to the feeding requirements of the subsequent process, solving the problem of the current camshaft finishing conveyor line that only realizes single workpiece transportation and cannot implement positioning and corresponding alignment adjustment of the cam. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the structure of the camshaft finishing conveyor line in an embodiment of the present invention; Figure 2 It is a partial structural schematic diagram of the unloading parts in the camshaft finishing conveyor line in an embodiment of the present invention; Figure 3 Schematic diagram of the first plane structure of the conveyor belt, the adjusting member and the workpiece in the camshaft finishing conveyor line in an embodiment of the present invention; Figure 4 Schematic diagram of the second plane state structure of the conveyor belt, the adjusting member and the workpiece in the camshaft finishing conveyor line in an embodiment of the present invention; Figure 5 Schematic diagram of the third plane structure of the conveyor belt, the adjusting member and the workpiece in the camshaft finishing conveyor line according to an embodiment of the present invention; Figure 6 Schematic diagram of the fourth plane structure of the conveyor belt, the adjusting member and the workpiece in the camshaft finishing conveyor line according to an embodiment of the present invention; Figure 7Schematic diagram of a portion of the structure of a workpiece guide assembly in a camshaft finishing conveyor line according to an embodiment of the present invention; Figure 8 This is a partial structural schematic diagram of the guide parts in the camshaft finishing conveyor line in an embodiment of the present invention.

[0018] Description of main component symbols:

[0019] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0020] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The drawings illustrate several embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein 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 skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] Example See also Figures 1 to 8, shown is a camshaft finishing conveyor line in an embodiment of the present invention, comprising a material unloading table 1, a material guide cabin 4 connected to the bottom of the material unloading table 1, and a conveyor belt 6 arranged at the bottom of the material guide cabin 4 for unloading the workpiece 8, a plurality of workpiece slots 7 are provided on the conveyor belt 6, and the workpiece slots 7 are arranged in a matrix, the material unloading table 1 comprises at least two material unloading guide plates 2 arranged on the side away from the material guide cabin 4, and a material unloading part 3 located between the two material unloading guide plates 2 for guiding the workpiece 8 to flip and adjust, the material unloading part 3 comprises a guide portion 31 arranged at the top and between the two material unloading guide plates 2, a buffer portion 32 extending outward along the guide portion 31 toward the side away from the material unloading guide plate 2, and an adjusting part 33 extending outward along the buffer portion 32 toward the side away from the guide portion 31, wherein the guide portion 31 is used to guide the workpiece 8 to rotate along the X-axis toward the Y-axis direction, and the adjusting part 33 is used to guide the workpiece 8 to rotate along the Z-axis direction, so that the protruding end of the workpiece 8 faces the side away from the workpiece slot 7.

[0024] Furthermore, the guide portion 31 has a spiral design, the top feed port of the guide portion 31 is arranged parallel to the blanking guide plate 2 along the X-axis, and the blanking guide plate 2 is inclined toward one side of the guide portion 31. In some optional embodiments, in order to ensure that the workpieces 8 are arranged in an orderly manner and enter the blanking part 3, a partition corresponding to the top feed port of the blanking part 3 can be provided on the blanking guide plate 2 to guide the workpieces 8 to be arranged and introduced into the blanking part 3 in sequence. The bottom discharge port of the guide portion 31 is arranged parallel to the workpiece slot 7 along the Y-axis, and the buffer portion 32 has an S-shaped design along the Y-axis direction to slow down the acceleration of the workpiece 8 falling vertically when passing through the buffer portion 32. The adjusting part 33 includes a discharge portion 331 connected to the buffer portion 32, and a discharge trough 332 is provided at the bottom of the discharge portion 331 for the workpiece 8 to be discharged along the conveying direction of the conveyor belt 6. At least two clamps 333 are relatively arranged on the side of the adjusting part 3 close to the discharge trough 332, and the clamps 333 are used to generate clamping resistance on the conveying path of the workpiece 8.

[0025] It should be noted that the camshaft finishing conveyor line of the present invention is mainly used as a transition device between two processing production lines during the processing of the camshaft, for example: transferring the workpiece 8 from the rough processing process to the finishing process, wherein the unloading table 1 is set at the lower position of the discharge port of the rough processing process, and the conveyor belt 6 is connected to the feed port of the finishing process away from the unloading table 1. It can be located above the conveyor belt of the finishing process, or the workpiece 8 is transferred from the surface grinding process to the edge grinding process. It can be understood that the workpiece 8 that was originally in a flat state and subjected to surface grinding can be adjusted to a vertical state during the transfer process through the camshaft finishing conveyor line of the present invention, and introduced into the edge grinding process to wait for subsequent edge grinding operations.

[0026] During the specific implementation, the operator needs to guide the processed cam, that is, the workpiece 8, into the blanking part 3 in accordance with the blanking guide plate 2, or set the blanking guide plate 2 at the transition position of the discharge port of the previous process, so that the workpiece can directly slide into the blanking part 3 along the blanking guide plate 2 after the processing step, so as to avoid the workpiece 8 from falling directly and colliding with the blanking guide plate 2 and being damaged. The previous process at least includes the above-mentioned rough processing process and surface grinding process. At the same time, based on the fact that all the processing processes of the camshaft are divided into a sequence, which can be understood by technical personnel in this field, the operator can choose to implement the layout and use of the camshaft finishing conveyor line of the present invention according to the sequence and transition needs between the processes. In addition, in some optional embodiments, in order to ensure the smoothness of the blanking, a vibration motor can be added to the bottom of the blanking guide plate 2 in the blanking table 1 to realize the blanking guide plate 2. Vibration blanking operation, then, when the workpiece 8 enters the blanking part 3, the workpiece 8 can be flipped and adjusted. Specifically, first, the workpiece 8 enters the guide part 31 along the X direction and maintains a falling state in the guide part 31. During the process, it can be rotated along the Y-axis direction along the trajectory of the guide part 31 until it reaches the buffer part 32, and then continues to move toward the adjustment part 33 along its trajectory. During the process, in order to avoid the impact of the workpiece 8 when it passes through the blanking part 3 vertically, after that, when the workpiece 8 enters the adjustment part 33, it can be buffered again based on the clip 333, so that the workpiece 8 can be stably in contact with the conveyor belt 6 and finally fall into the workpiece slot 7 to implement the conveying operation. It should be noted that the clip 333 can be made of rubber material. Through the structural characteristics of the rubber itself, while buffering the workpiece 8 during the falling process, it can also be used to assist in the flipping adjustment of the workpiece 8.

[0027] Furthermore, for the adjustment part 33 assisting the workpiece 8 in flipping and adjusting, the operator can wake up the conveyor belt 6 through the control console 5 to implement the conveying operation. In some optional embodiments, the control console 5 can be set at any position on the camshaft finishing conveyor line that is convenient for the operator to operate, and the control console 5 can be an MCU (Microcontroller Unit) chip to control the camshaft finishing conveyor line through the MCU chip, wherein the camshaft finishing conveyor line is electrically connected to the control console 5, and the electrical connection includes a wired connection and a wireless connection, and the wireless connection method includes but is not limited to Bluetooth connection, WiFi, IF radio frequency, zigbee, and the wired connection method includes but is not limited to a USB line connecting the camshaft finishing conveyor line and the control console 5. Afterwards, the conveyor belt 6 is located at the bottom of the adjustment part 33 and rolls in a cycle. During the process, the workpiece 8 falls toward the conveyor belt 6 due to its own gravity. It should be noted that there may be two orientation problems when the workpiece 8 enters the blanking part 3, such as the protrusion of the workpiece 8 enters toward the guide part 31, or the side of the workpiece 8 away from the protrusion enters toward the guide part 31, wherein, Figure 3As shown, the workpiece 8 enters the guide portion 31 from the side away from the raised portion. In this state, the workpiece 8 can directly fall into the workpiece groove 7 and completely fit with the inner wall of the workpiece groove 7. Due to the increase in its contact area, the resistance generated between the conveyor belt 6 and the workpiece 8 in this state will be significantly greater than the clamping resistance of the clamping piece 333, so that the workpiece 8 is located in the workpiece groove 7 and follows the conveying direction of the conveyor belt 6 to be directly discharged from the discharge groove 332. In addition, Figures 4 to 6 As shown, the raised portion of the workpiece 8 enters the guide portion 31. In this state, the raised portion of the workpiece 8 will first contact the workpiece groove 7, and will not contact the clamping piece 333 during the process, so that the stability of the workpiece 8 in the workpiece groove 7 is relatively low. Figure 4 As shown, under the continuous driving of the conveyor belt 6, the raised portion of the workpiece 8 will be preferentially driven to flip toward the clamping piece 333, and at the same time, part of the workpiece 8 will be exposed outside the discharge trough 332. However, due to the clamping resistance of the clamping piece 333, and the resistance generated between the conveyor belt 6 and the workpiece 8 in this state is less than the clamping resistance of the clamping piece 333, the workpiece 8 is still in the adjustment member 33, as shown in FIG. Figure 5 The workpiece 8 is in the state shown in FIG. 1 , and then the workpiece 8 is in the state shown in FIG. 1 , based on the continuous transmission of the conveyor belt 6. Figure 6 As shown in the state, and after the adjacent workpiece slot 8 moves to the position directly below the adjustment member 33, the workpiece 8 is affected by its own gravity and the heavier side, that is, the side away from the raised portion, will fall toward the workpiece slot 7. It can be understood that the workpiece 8 is flipped and adjusted with the clamping piece 333 as the center of the circle, and finally guides the workpiece 8 to flip and fall into the subsequent adjacent workpiece slot 7, realizing the flip adjustment of the workpiece 8 during the transmission process, so that the workpiece 8 returns to the state shown in the state. Figure 4 After the state shown, the workpieces 8 are directly discharged to the discharge slot 332 following the conveying direction of the conveyor belt 6, so that the workpieces 8 on the conveyor belt 6 all maintain the state with the raised portion facing upward, and are discharged flatly from the initial previous process. The X-axis to Y-axis adjustment is implemented by the blanking part 3, and then the workpiece 8 is flipped over by the adjusting part 33 in cooperation with the conveyor belt 6, so that the workpieces 8 on the conveyor belt 6 are all in the state with the raised portion facing upward, achieving a regulated arrangement of the workpieces 8 and ensuring stable contact between the workpiece 8 and the workpiece slot 7, thereby improving the fixation and stability of the workpiece 8 during the conveying process, and also adapting to the feeding requirements of the subsequent process. For example, in some optional embodiments, a cam steel shaft insertion device is arranged at the end of the conveyor belt 6 to complete the cam shaft assembly operation or unloading and loading operation, and another conveyor belt adapted to the conveyor belt 6 is provided to perform edge grinding operations on the workpiece 8 after loading.

[0028] Furthermore, since the workpiece 8 guided to the adjustment member 33 is located in the workpiece groove 7 and there may be a situation where the protrusion is offset or tilted, in order to further improve the regularity of the workpiece 8 and facilitate the subsequent workpiece 7 to limit the height when entering other workstations, or to ensure the neatness of unloading, in some optional embodiments of the present invention, a workpiece guide assembly 9 can be added to the conveyor belt 6, wherein the camshaft finishing conveyor line also includes a workpiece guide assembly 9 arranged on the top of the conveyor belt 6, and the workpiece guide assembly 9 includes a fixed table 91 fixedly connected to the edges of both sides of the conveyor belt 6, and a guide member 92 movably embedded in the fixed table 91, and a guide groove 93 for the guide member 92 to contact the workpiece 8 is provided at the bottom of the fixed table 91, and the guide member 92 is used to To guide the raised portion of the workpiece 8, the guide member 92 includes a driving member at the top, a first linkage gear 923 arranged at the bottom of the driving member and transmission connected thereto, and guide groups respectively arranged on both sides of the first linkage gear 923 and transmission connected thereto. The driving member includes a driving gear 922 movably connected to the top of the fixed platform 91, and a guide lever 921 extending radially along the driving gear 922 toward a side away from the first linkage gear 923. There are two guide groups, including a second linkage gear 924 and a third linkage gear 925 transmission connected to both sides of the first linkage gear 923, and a guide end 926 respectively arranged on the second linkage gear 924 and the third linkage gear 925 toward the side away from the first linkage gear 923.

[0029] Furthermore, for the specific implementation of the workpiece guide assembly 9 when in use, as shown in FIG. Figure 8 As shown, the operator can hold the guide lever 921 and rotate it in the direction of the arrow on the driving gear 922, so that the driving gear 922 is driven in sequence to drive the first linkage gear 923, the second linkage gear 924 and the third linkage gear 925, so as to control at least one of the two guide ends 926 to flip toward or away from the guide groove 93, so as to contact and limit the workpiece 8 on the path of the conveyor belt 6, so that the workpiece 8 is deflected and adjusted in the workpiece groove 7, such as the raised part of the workpiece 8 is tilted to the left or right, so as to improve the adaptability of the workpiece 8 to the feeding of the subsequent process, and the neatness during the subsequent unloading and packaging, which is convenient for regulation and storage. At the same time, the drive of the guide lever 921 adopts an independent structural design, so that the camshaft finishing conveyor line of the present invention is more adapted to the feeding standards of other production lines, thereby improving the adaptability of the camshaft finishing conveyor line of the present invention.

[0030] In summary, in the camshaft finishing conveyor line in the above embodiment, after the workpiece 8 is flatly guided out in the previous process, the X-axis to Y-axis adjustment is implemented through the guide part 31, and then the workpiece 8 is flipped along the Z-axis direction through the adjustment part 33 in cooperation with the conveyor belt 6, so that the workpiece 8 is located on the conveyor belt 6 with the raised part facing upward, thereby achieving a regulated arrangement of the workpiece 8 and ensuring stable contact between the workpiece 8 and the workpiece groove 7, thereby improving the fixation and stability of the workpiece 8 during the conveying process and improving the conveying efficiency of the workpiece 8. The process does not require manual adjustment of the workpiece 8, and it also adapts to the feeding requirements of the subsequent process, solving the problem that the current camshaft finishing conveyor line only realizes single workpiece conveying and cannot perform positioning and corresponding alignment adjustments on the cam.

[0031] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means 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 present invention. In this specification, schematic representations 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 any one or more embodiments or examples.

[0032] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A camshaft finishing conveyor line, characterized in that: It includes a material unloading platform, a material guide cabin connected to the bottom of the material unloading platform, and a conveyor belt arranged at the bottom of the material guide cabin for unloading workpieces, wherein a plurality of workpiece slots are opened on the conveyor belt, and the workpiece slots are arranged in a matrix; The unloading platform includes at least two unloading guide plates arranged at one side away from the guide cabin, and a unloading member located between the two unloading guide plates for guiding the workpiece to flip and adjust; The blanking member includes a guide portion provided at the top and located between the two blanking guide plates, a buffer portion extending outwardly along the guide portion toward a side away from the blanking guide plates, and an adjusting member extending outwardly along the buffer portion toward a side away from the guide portion; The guide portion is used to guide the workpiece to rotate along the X-axis toward the Y-axis, and the adjustment member is used to guide the workpiece to rotate along the Z-axis, so that the protruding end of the workpiece faces away from the workpiece groove.

2. The camshaft finishing conveyor line according to claim 1, characterized in that: The guide portion has a spiral shape, the top feed port of the guide portion is parallel to the blanking guide plate along the X-axis, and the bottom discharge port of the guide portion is parallel to the workpiece slot along the Y-axis.

3. The camshaft finishing conveyor line according to claim 2, characterized in that: The buffer portion is designed to be S-shaped along the Y-axis direction to slow down the acceleration of the workpiece falling vertically when passing through the buffer portion.

4. The camshaft finishing conveyor line according to claim 3, characterized in that: The adjusting member includes a discharge portion connected to the buffer portion, and a discharge trough is provided at the bottom of the discharge portion for discharging the workpiece along the conveying direction of the conveyor belt. At least two clamps are relatively arranged on one side of the adjusting member close to the discharge trough, and the clamps are used to generate clamping resistance on the workpiece conveying path.

5. The camshaft finishing conveyor line according to claim 4, characterized in that: When the raised portion of the workpiece is in contact with the workpiece groove, the conveying driving force of the conveyor belt is smaller than the clamping resistance of the clamping piece, so that the workpiece is driven to flip with the clamping piece as the center.

6. The camshaft finishing conveyor line according to claim 5, characterized in that: When the side of the workpiece away from the protrusion is in contact with the workpiece slot, the conveying driving force of the conveyor belt is greater than the clamping resistance of the clamping piece, so that the workpiece is located in the workpiece slot and moves in the conveying direction of the conveyor belt.

7. The camshaft finishing conveyor line according to claim 1, characterized in that: It also includes a workpiece guide assembly arranged on the top of the conveyor belt, the workpiece guide assembly includes a fixed platform fixedly connected to the edges of both sides of the conveyor belt, and a guide member movably embedded in the fixed platform, and a guide groove for the guide member to contact the workpiece is provided at the bottom of the fixed platform.

8. The camshaft finishing conveyor line according to claim 7, characterized in that: The guide member is used to guide the direction of the protrusion of the workpiece, and the guide member includes a driving member at the top, a first linkage gear arranged at the bottom of the driving member and transmission connected thereto, and a guide group respectively arranged on both sides of the first linkage gear and transmission connected thereto.

9. The camshaft finishing conveyor line according to claim 8, characterized in that: The driving member includes a driving gear movably connected to the top of the fixing platform, and a guide lever extending radially from the driving gear toward a side away from the first linkage gear.

10. The camshaft finishing conveyor line according to claim 9, characterized in that: There are two guide groups, each including a second linkage gear and a third linkage gear transmission-connected to both sides of the first linkage gear, and guide ends respectively arranged on the second linkage gear and the third linkage gear facing away from the first linkage gear.

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