Cylinder cover lifting device and production line roller way

Abstract

The utility model relates to the field of cylinder cover machining, and discloses a cylinder cover lifting device and a production line roller way, the cylinder cover lifting device comprises a lifting platform and a driving part, the lifting platform comprises a mounting plate and a lifting tray located above the mounting plate, and the driving part drives the lifting tray to move in the vertical direction; the lifting device further comprises a guide assembly connected with the bottom of the lifting tray and a detection support fixed to the bottom of the mounting plate, the guide assembly comprises a positioning detection piece, the detection support is at least provided with a first detection position and a second detection position in the vertical direction, and the second detection position is higher than the first detection position. The positioning detection member has a first position having the same height as the first detection position and a second position having the same height as the second detection position. According to the scheme, the moving height of the lifting tray is detected and determined by arranging the positioning detection piece, workers do not need to estimate the position of the lifting tray, the working reliability and accuracy of the device are improved, and therefore the working efficiency is improved, and the production takt is shortened.

Description

Technical Field

[0001] The present application belongs to the field of cylinder head processing, and specifically relates to a cylinder head lifting device and a production line roller. Background Art

[0002] The cylinder head is an important part of the diesel engine. Its function is to seal the cylinder, form a combustion space together with the piston, and withstand high temperature and high pressure gas. During the production process, the cylinder head moves along the roller table of the production line, but some processing procedures of the cylinder head need to be performed at a higher altitude. In the prior art, the cylinder head is usually hoisted to the work station using a hoisting tool. However, before hoisting, the cylinder head needs to be manually assembled to the hoisting tool, which is time-consuming and labor-intensive, and has poor positioning accuracy and low processing efficiency.

[0003] In order to improve the level of automated production in cylinder head processing, it is necessary to specifically design a cylinder head lifting mechanism with strong practicality, simplify the lifting steps, and improve the lifting efficiency of the cylinder head while ensuring that the cylinder head is lifted stably. Utility Model Content

[0004] The present application provides a cylinder head lifting device and a production line roller, which solve the problems of low lifting efficiency and long process cycle when the cylinder head needs to be processed at a high place.

[0005] The technical solution adopted in this application is:

[0006] A cylinder head lifting device comprises a lifting platform and a driving member, wherein the lifting platform comprises a mounting plate and a lifting tray located above the mounting plate, wherein the driving member drives the lifting tray to move vertically, and the lifting device further comprises a guide assembly connected to the bottom of the lifting tray and a detection bracket fixed to the bottom of the mounting plate, wherein the guide assembly comprises a positioning detection member, wherein the detection bracket is provided with at least a first detection position and a second detection position vertically, wherein the second detection position is higher than the first detection position, and wherein the positioning detection member has a first position having a height equal to that of the first detection position and a second position having a height equal to that of the second detection position.

[0007] The cylinder head lifting device described in this application specifically includes the following additional technical features:

[0008] The guide assembly includes a guide column, the mounting plate is provided with a guide opening for the guide column to pass through, the positioning detection component includes a detection ring, the detection ring is sleeved on the bottom end of the guide column, and the guide column moves along the guide opening to enable the detection ring to reach the first position or the second position.

[0009] The inner diameter of the guide opening is larger than the outer diameter of the guide post, and a protective sleeve is provided between the guide opening and the guide post.

[0010] The guide assembly also includes a transmission member connecting the driving member and the lifting tray. The mounting plate is provided with an opening. The driving member is located at the bottom of the mounting plate. The transmission member passes through the opening and is fixedly connected to the driving member.

[0011] The driving member includes a driving cylinder, and the transmission member includes a floating joint, one end of the floating joint is connected to the driving cylinder, and the other end of the floating joint is connected to the bottom end of the lifting tray.

[0012] The opening is located at the center of the mounting plate, and the guide opening and the guide column are provided on both lateral sides of the opening, and the guide opening is symmetrically arranged relative to the opening.

[0013] The detection bracket is fixed to the bottom end of the mounting plate and is arranged parallel to the guide assembly. The detection bracket is provided with induction switches at the first detection position and the second detection position.

[0014] The cylinder head is provided with a pin hole, and the lifting tray is provided with a positioning pin matched with the pin hole.

[0015] The present application also includes: a cylinder head production line roller, the production line roller is provided with a lifting station, the lifting station is provided with a cylinder head lifting device as described in any one of the above items, both ends of the mounting plate are fixed to the production line roller, and a blocker is provided in front of the lifting device along the moving direction of the cylinder head.

[0016] The production line roller is provided with a controller, and the blocker, the driving member, and the positioning detection member are all connected with the controller via electrical signals.

[0017] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0018] (1) This solution detects the moving height of the lifting tray by setting a guide component, so that the lifting tray determines the moving height through the position of the positioning detection part, thereby realizing that the lifting tray drives the cylinder head to lift, so as to realize the processing operation of the cylinder head when it is at a high position, and after the operation is completed, the lifting tray is driven to fall back through the driving part, and the lifting tray is reset by the positioning detection part reaching the detection position, and the cylinder head drops to its original position, thereby improving the degree of automation of the cylinder head lifting process, improving the cylinder head processing efficiency, and shortening the production cycle.

[0019] In addition, the first detection position and the second detection position of the detection bracket are set according to the actual lifting height of the lifting pallet. When the positioning detection part moves to the first position, it can be known that the lifting pallet has reached the corresponding lifting position. When the positioning detection part moves to the second position, the lifting pallet has reached another corresponding position to ensure the moving height position of the lifting pallet. There is no need for staff to estimate the position of the lifting pallet, which improves the working reliability and accuracy of the device, thereby further improving work efficiency and shortening production cycle.

[0020] (2) The guiding and positioning effect of the lifting tray is achieved through the form of a guide column and a detection ring. The guide column has a simple structure, and its processing method is simple and easy to install. At the same time, the connection between the guide column and the bottom of the lifting tray can provide a certain support strength for the lifting tray, enhance the lifting stability of the cylinder head by the lifting tray, and further improve the overall working stability of the device. The detection ring moves with the guide column, and the detection ring sleeve is arranged on the outside to facilitate observation of its moving position. In addition, since the lifting tray is not fixed to the mounting plate, the guide column connected to the lifting tray is limited by the guide port, that is, the lifting tray is limited at the same time, avoiding the displacement of the lifting tray and causing lifting difficulties.

[0021] (3) By setting the outer diameter of the guide opening larger than the outer diameter of the guide column, the guide column can move vertically smoothly along the guide opening, and the guide column can be radially limited while ensuring rapid movement of the guide column to avoid jamming. A protective cover is provided at the guide opening to prevent the guide column from rubbing against the inner wall of the guide opening due to multiple movements, thereby preventing scratches or damage.

[0022] (4) A transmission member is provided to connect the driving member and the lifting tray, so as to realize the driving and moving effect of the driving member on the lifting tray. The driving member adopts a driving cylinder, and the transmission member adopts a floating joint. The characteristics of the floating joint are conducive to ensuring the accuracy of the connection between it and the lifting tray.

[0023] (5) The opening is set at the center of the mounting plate, that is, the driving member moves in the vertical direction along the central axis of the mounting plate, and at the same time lifts or lowers the lifting tray from the middle position, which is conducive to maintaining the balance effect of the lifting tray during the movement and maintaining the movement stability of the lifting tray. Guide openings and guide columns are symmetrically arranged on both sides of the opening to balance the overall force of the mounting plate and the lifting tray, and the overall support effect of the bottom of the lifting tray is strengthened by the guide columns on both sides to improve the force strength of the lifting tray.

[0024] (6) The detection bracket is fixed at the bottom of the mounting plate, and the guide assembly is arranged parallel to the detection bracket. When the lifting pallet moves, the guide assembly connected thereto moves synchronously, that is, the positioning detection member moves synchronously. The detection bracket is fixed to the mounting plate and remains stationary. When the positioning detection member reaches the first position or the second position during the movement, a corresponding induction switch receives the position of the positioning detection member, thereby enabling the lifting pallet to stop moving, thereby further improving the degree of automation of the device and the accuracy of the lifting pallet moving position, thereby improving the working efficiency of the device.

[0025] (7) The lifting tray is provided with pin holes for alignment connection with the cylinder head, which strengthens the connection stability between the lifting tray and the cylinder head, thereby ensuring the stability of the cylinder head position during the movement of the lifting tray, and facilitating the stability of the cylinder head position on the top of the lifting tray when the cylinder head is processed after lifting, thereby avoiding the cylinder head from falling or tilting. And because the lifting tray can be moved, that is, the lifting tray is not fixed to the mounting plate, the appropriate lifting tray can be replaced according to the model of the cylinder head, so that the lifting device can be adapted to the lifting of various types of cylinder heads. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0027] Figure 1 This is a front view of a lifting device in one embodiment of the utility model;

[0028] Figure 2 It is a left side view of a lifting device in one embodiment of the utility model;

[0029] Figure 3 A top view of a lifting device in one embodiment of the utility model;

[0030] Figure 4 It is a schematic diagram of the top structure of the mounting plate in one embodiment of the utility model.

[0031] Description of reference numerals:

[0032] 1-mounting plate, 11-guide port, 12-protective cover, 13-fixing ring, 14-opening;

[0033] 2-lifting tray, 21-positioning pin;

[0034] 3- driving cylinder;

[0035] 4-guide column, 41-detection ring;

[0036] 5-detection bracket, 51-first detection position, 52-second detection position, 53-induction switch;

[0037] 6-Floating joint. DETAILED DESCRIPTION

[0038] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0039] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features in each embodiment may be combined with each other without conflict.

[0040] like Figures 1 to 4 As shown, the present application provides a cylinder head lifting device, including a lifting platform and a driving member, the lifting platform including a mounting plate 1 and a lifting tray 2 located above the mounting plate 1, the driving member drives the lifting tray 2 to move vertically, the lifting device also includes a guide assembly connected to the bottom of the lifting tray 2 and a detection bracket 5 fixed to the bottom of the mounting plate 1, the guide assembly includes a positioning detection member, the detection bracket 5 is vertically provided with at least a first detection position 51 and a second detection position 52, the second detection position 52 is higher than the first detection position 51, the positioning detection member has a first position equal to the height of the first detection position 51 and a second position equal to the height of the second detection position 52.

[0041] This solution detects the moving height of the lifting tray 2 by setting a guide component, so that the lifting tray 2 determines the moving height through the position of the positioning detection part, thereby realizing the lifting of the cylinder head by the lifting tray 2 to achieve the processing operation of the cylinder head when it is at a high position, and after the operation is completed, the lifting tray 2 is driven to fall back by the driving part, and the lifting tray 2 is reset by the positioning detection part when it reaches the detection position, and the cylinder head drops to its original position, thereby improving the degree of automation of the cylinder head lifting process, improving the cylinder head processing efficiency, and shortening the production cycle.

[0042] In addition, the first detection position 51 and the second detection position 52 provided on the detection bracket 5 are set according to the actual lifting height of the lifting tray 2. When the positioning detection part moves to the first position, it can be known that the lifting tray 2 has reached the corresponding lifting position. When the positioning detection part moves to the second position, the lifting tray 2 has reached another corresponding position to ensure the moving height position of the lifting tray 2. There is no need for the staff to estimate the position of the lifting tray 2, which improves the working reliability and accuracy of the device, thereby further improving work efficiency and shortening the production cycle.

[0043] It should be noted that the specific shapes of the mounting plate 1 and the lifting tray 2 can be processed and set according to the actual application and connection conditions. Preferably, the center of the lifting tray 2 and the center of the mounting plate 1 are located on the same axis to enhance the overall balance.

[0044] like Figure 1 , Figure 4 As shown, in one embodiment, the guide assembly includes a guide column 4, the mounting plate 1 is provided with a guide opening 11 for the guide column 4 to pass through, the positioning detection component includes a detection ring 41, the detection ring 41 is sleeved on the bottom end of the guide column 4, and the guide column 4 moves along the guide opening 11 so that the detection ring 41 reaches the first position or the second position.

[0045] It should be noted that the connection between the guide column 4 and the lifting tray 2 can be achieved by one of a variety of methods such as bolts or welding, and there is no specific limitation on this.

[0046] The guiding and positioning effect of the lifting tray 2 is achieved by setting the guide column 4 and the detection ring 41. The guide column 4 has a simple structure, and its processing method is simple and easy to install. At the same time, the connection between the guide column 4 and the bottom of the lifting tray 2 can provide a certain support strength for the lifting tray 2, and enhance the lifting stability of the cylinder head by the lifting tray 2, thereby further improving the overall working stability of the device. The detection ring 41 moves with the guide column 4, and the detection ring 41 is sleeved on the outside to facilitate observation of its moving position. In addition, since the lifting tray 2 is not fixed to the mounting plate 1, the guide column 4 connected to the lifting tray 2 is limited by the guide port 11, that is, the lifting tray 2 is limited at the same time, avoiding the displacement of the lifting tray 2 and causing lifting difficulties.

[0047] Furthermore, the inner diameter of the guide opening 11 is greater than the outer diameter of the guide post 4 , and a protective sleeve 12 is provided between the guide opening 11 and the guide post 4 .

[0048] By setting the outer diameter of the guide opening 11 larger than the outer diameter of the guide post 4, the guide post 4 can move vertically smoothly along the guide opening 11, and the guide post 4 can be radially limited while ensuring the rapid movement of the guide post 4 to avoid jamming. A protective cover 12 is provided at the guide opening 11 to prevent the guide post 4 from rubbing and colliding with the inner wall of the guide opening 11 due to multiple movements, thereby causing scratches or damage.

[0049] Preferably, the protective cover 12 is made of a flexible material to avoid collision with the guide column 4. At the same time, the protective cover 12 is fixed to the guide port 11 to prevent the protective cover 12 from being displaced and falling off when the guide column 4 moves, so that the protective cover 12 can always achieve the isolation and protection between the inner wall of the guide port 11 and the outer wall of the guide column 4.

[0050] It is understandable that the protective cover 12 may be fixed by fasteners or other fixing methods in the prior art, which is not specifically limited. For example, the protective cover 12 may be fixed to the guide opening 11 by bonding.

[0051] Or, if Figure 1 As shown, in one embodiment, a fixing ring 13 is provided on the top of the protective cover 12, and the diameter of the fixing ring 13 is larger than the diameter of the guide opening 11. The fixing ring 13 is placed on the top of the mounting plate 1, and the protective cover 12 extends into the guide opening 11 and extends downward along the guide opening 11 to achieve an isolation and protection effect on the guide column 4 at the guide opening 11.

[0052] like Figure 1 , Figure 4 As shown, in one embodiment, the guide assembly further includes a transmission member connecting the driving member and the lifting tray 2, the mounting plate 1 is provided with an opening 14, the driving member is located at the bottom of the mounting plate 1, and the transmission member passes through the opening 14 and is fixedly connected to the driving member.

[0053] Preferably, the driving member includes a driving cylinder 3 , and the transmission member includes a floating joint 6 , one end of the floating joint 6 is connected to the driving cylinder 3 , and the other end of the floating joint 6 is connected to the bottom end of the lifting tray 2 .

[0054] A transmission member is provided to connect the driving member and the lifting tray 2, so as to realize the driving movement effect of the driving member on the lifting tray 2. The driving member adopts a driving cylinder 3, and the transmission member adopts a floating joint 6. The characteristics of the floating joint 6 are conducive to ensuring the accuracy of the connection between it and the lifting tray 2.

[0055] like Figure 4 As shown, further, the opening 14 is located at the center of the mounting plate 1 , and guide openings 11 and guide posts 4 are provided on both lateral sides of the opening 14 , and the guide openings 11 are symmetrically arranged relative to the opening 14 .

[0056] The opening 14 is arranged at the center of the mounting plate 1, that is, the driving member moves in the vertical direction along the central axis of the mounting plate 1, and also lifts or lowers the lifting tray 2 from the middle position thereof, which is conducive to maintaining the balance effect of the lifting tray 2 during the movement and maintaining the movement stability of the lifting tray 2. The guide openings 11 and the guide columns 4 are symmetrically arranged on both sides of the opening 14, so that the overall force of the mounting plate 1 and the lifting tray 2 is balanced, and the overall support effect of the bottom of the lifting tray 2 is strengthened by the guide columns 4 on both sides, thereby improving the force strength of the lifting tray 2.

[0057] Preferably, guide columns 4 are equidistantly arranged on both sides of the opening 14, and a detection ring 41 is arranged on at least one of the guide columns 4. For example, a detection ring 41 is arranged at the bottom of the guide column 4 close to the detection bracket 5, so as to realize fast and stable detection at a close distance at the first detection position 51 and the second detection position 52, thereby ensuring the working stability and working efficiency of the lifting device.

[0058] like Figure 1 As shown, in one embodiment, the detection bracket 5 is fixed to the bottom end of the mounting plate 1 and is arranged parallel to the guide assembly. The detection bracket 5 is provided with an induction switch 53 at a first detection position 51 and a second detection position 52 .

[0059] The detection bracket 5 is fixed at the bottom end of the mounting plate 1, and the guide assembly is arranged parallel to the detection bracket 5. When the lifting tray 2 moves, the guide assembly connected thereto moves synchronously, that is, the positioning detection part moves synchronously. The detection bracket 5 is fixed to the mounting plate 1 and remains stationary. When the positioning detection part reaches the first position or the second position during the movement, a corresponding sensing switch 53 receives the position of the positioning detection part, thereby enabling the lifting tray 2 to stop moving, thereby further improving the degree of automation of the device and the accuracy of the moving position of the lifting tray 2, and improving the working efficiency of the device.

[0060] It should be noted that the detection bracket 5 can be provided with multiple detection positions according to the actual lifting height requirements, so that the lifting device can adapt to the requirements of different cylinder heads or different processing methods for different heights, thereby improving the practicality of the lifting device. The detection bracket 5 can be fixed by drilling holes in the mounting plate 1 and connecting the detection bracket 5 to the mounting plate 1 with screws.

[0061] like Figure 1 , Figure 3 As shown, in one embodiment, the cylinder head is provided with a pin hole, and the lifting tray 2 is provided with a positioning pin 21 adapted to the pin hole.

[0062] The lifting tray 2 is provided with a pin hole for alignment connection with the cylinder head, which strengthens the connection stability between the lifting tray 2 and the cylinder head, thereby ensuring the stability of the position of the cylinder head during the movement of the lifting tray 2, and facilitating the stability of the position of the cylinder head on the top of the lifting tray 2 when the cylinder head is processed after lifting, thereby avoiding the cylinder head from falling or tilting. And because the lifting tray 2 can be moved, that is, the lifting tray 2 is not fixed to the mounting plate 1, the appropriate lifting tray 2 can be replaced according to the model of the cylinder head, so that the lifting device can adapt to the lifting of various types of cylinder heads, expand the scope of application of the lifting device, and improve the practicality of the lifting device.

[0063] At the same time, when the transmission member is set to a floating joint 6, due to the characteristics of the floating joint 6 itself, one end of the floating joint 6 is fixedly connected to the driving cylinder 3, and the other end is floatingly connected to the lifting tray 2. The connection between the lifting tray 2 and the floating joint 6 allows a slight movement. When the lifting tray 2 is aligned with the cylinder head, the lifting tray 2 can be slightly moved and adjusted to ensure that the positioning pin 21 of the lifting tray 2 is accurately aligned with the pin hole of the cylinder head.

[0064] The present application also includes: a cylinder head production line roller, the production line roller is provided with a lifting station, the lifting station is provided with a cylinder head lifting device as described in any of the above embodiments, both ends of the mounting plate 1 are fixed to the production line roller, and a blocker is provided in front of the lifting device along the moving direction of the cylinder head.

[0065] The production line roller is provided with a controller, and the blocker, the driving member, and the positioning detection member are all connected with the controller by electrical signals.

[0066] As an implementation method of the present application on a production line roller:

[0067] The production line roller is equipped with a PLC control system. The controller, as a part of the PLC control system, realizes signal reception and feedback. The lifting station is a part of the production line roller. The lifting device is fixed to the production line roller through the mounting plate 1. The cylinder head reaches the lifting station during its movement along the roller.

[0068] When no lifting operation is performed, the positioning detection part is in the first position. If a lifting operation is required, the blocker is first extended to prevent the cylinder head from continuing to move, and then the cylinder 3 is driven to drive the lifting tray 2 to move upward, so that the positioning pin 21 of the lifting tray 2 is aligned with the pin hole of the cylinder, and then the lifting tray 2 continues to move upward to lift the supporting cylinder head.

[0069] When lifted to the second position, the induction switch 53 detects the detection ring 41 and sends a signal to the controller. The controller feedbacks a signal to stop the driving cylinder 3 from moving, and the robot arm or other mechanism processes the cylinder head. After the processing is completed, the driving cylinder 3 is controlled to start again, driving the lifting tray 2 to move down to the first position. The lifting tray 2 is separated from the cylinder head, and the cylinder head continues to move along the roller of the production line.

[0070] If no lifting operation is required, the stopper remains inactive and the cylinder head continues to move through the lifting station.

[0071] It can be understood that, in the first position, the top surface of the lifting tray 2 is lower than the placement surface of the cylinder head on the production line roller, so as to avoid the lifting tray 2 hindering the movement of the cylinder head along the production line roller.

[0072] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0073] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0074] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A cylinder head lifting device, comprising a lifting platform and a driving member, wherein the lifting platform comprises a mounting plate (1) and a lifting tray (2) located above the mounting plate (1), and the driving member drives the lifting tray (2) to move vertically, characterized in that: The lifting device also includes a guide assembly connected to the bottom of the lifting tray (2) and a detection bracket (5) fixed to the bottom of the mounting plate (1), the guide assembly includes a positioning detection member, the detection bracket (5) is vertically provided with at least a first detection position (51) and a second detection position (52), the second detection position (52) is higher than the first detection position (51), and the positioning detection member has a first position equal to the height of the first detection position (51) and a second position equal to the height of the second detection position (52).

2. The cylinder head lifting device according to claim 1, characterized in that: The guide assembly comprises a guide column (4), the mounting plate (1) is provided with a guide opening (11) for the guide column (4) to pass through, the positioning detection component comprises a detection ring (41), the detection ring (41) is sleeved on the bottom end of the guide column (4), and the guide column (4) moves along the guide opening (11) so that the detection ring (41) reaches a first position or a second position.

3. The cylinder head lifting device according to claim 2, characterized in that: The inner diameter of the guide opening (11) is greater than the outer diameter of the guide column (4), and a protective sleeve (12) is provided between the guide opening (11) and the guide column (4).

4. The cylinder head lifting device according to claim 2, characterized in that: The guide assembly also includes a transmission member connecting the driving member and the lifting tray (2), the mounting plate (1) is provided with an opening (14), the driving member is located at the bottom of the mounting plate (1), and the transmission member passes through the opening (14) and is fixedly connected to the driving member.

5. The cylinder head lifting device according to claim 4, characterized in that: The driving member includes a driving cylinder (3), and the transmission member includes a floating joint (6), one end of the floating joint (6) is connected to the driving cylinder (3), and the other end of the floating joint (6) is connected to the bottom end of the lifting tray (2).

6. The cylinder head lifting device according to claim 4, characterized in that: The opening (14) is located at the center of the mounting plate (1), and the guide opening (11) and the guide column (4) are provided on both lateral sides of the opening (14), and the guide opening (11) is symmetrically arranged relative to the opening (14).

7. The cylinder head lifting device according to claim 1, characterized in that: The detection bracket (5) is fixed to the bottom end of the mounting plate (1) and is arranged parallel to the guide assembly. The detection bracket (5) is provided with induction switches (53) at the first detection position (51) and the second detection position (52).

8. The cylinder head lifting device according to claim 1, characterized in that: The cylinder head is provided with a pin hole, and the lifting tray (2) is provided with a positioning pin (21) adapted to the pin hole.

9. A roller table for a cylinder head production line, characterized in that: The production line roller is provided with a lifting station, and the lifting station is provided with a cylinder head lifting device as described in any one of claims 1-8, both ends of the mounting plate (1) are fixed to the production line roller, and a blocker is provided in front of the lifting device along the moving direction of the cylinder head.

10. The cylinder head production line roller table according to claim 9, characterized in that: The production line roller is provided with a controller, and the blocker, the driving member and the positioning detection member are all connected with the controller by electrical signals.

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