A follow-up type hatch opening and closing and locking mechanism for a large-stroke moving table
Patent Information
- Application Number
- CN202410221398.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-28
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2044-02-28
AI Technical Summary
除工作台执行出舱回舱移动时需要驱动单元外，通常舱门的开闭也需要独立的驱动单元，这样整个装置至少需要采用两个以上的独立驱动单元进行驱动，其结果是系统的整体质量较大以及控制相对复杂
该用于大行程移动工作台的随动式舱门开闭和锁止机构：舱体与左右对开的舱门铰接；工作台由独立驱动单元驱动做出舱和回舱的往复直线移动；随动架固定安装在工作台上并随其往复移动，随动架上设置有凹槽和齿条，凹槽分为斜槽段和直槽段；操纵杆和限位杆均与舱门固连并与舱门一起绕舱体与舱门间的铰链中心摆动；限位盘上设置有U形槽、V形缺口和齿扇，且绕安装在舱体上的支承轴轴心转动。在工作台由舱内停靠位置出舱移动过程中，随动架上的斜槽侧面驱动操纵杆端滚子使操纵杆绕铰链中心摆动，实现舱门的打开，当舱门打开到位后，随动架上的齿条与限位盘上的齿扇啮合，带动限位盘转动到限位杆锁止位置，使舱门锁止定位。随着工作台继续移动，操纵杆端滚子将从随动架的直槽中脱离，工作台不再与舱门开闭和锁止机构关联，舱门仍保持打开且锁止状态，而工作台能够运动至更远的其所需到达的舱外工作位置。在工作台由舱外返回移动过程中，操纵杆端滚子靠近而后进入随动架上的直槽中，随着工作台的移动，随动架上的齿条与限位盘上的齿扇啮合，带动限位盘转动到限位杆的解锁位置，使舱门解锁，在操纵杆端滚子进入随动架上的斜槽后，斜槽侧面驱动操纵杆端滚子使操纵杆绕铰链中心摆动，实现舱门的关闭，随着工作台移动到舱内停靠位置，舱门将处于关闭且锁止的状态。
Smart Images
Figure CN118029792B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of automatic machinery, and specifically relates to a follow-up door opening, closing and locking mechanism for a large-stroke moving worktable. Background Technology
[0002] When a workbench docked inside the cabin needs to be moved outside for work, it involves both exiting and returning to the cabin: opening the hatch requires opening it for exiting, and closing it requires closing it for returning. Besides the drive unit needed for the workbench's exit and return movements, the opening and closing of the hatch usually also requires a separate drive unit. This means the entire system requires at least two independent drive units, resulting in a large overall system mass and relatively complex control. To address this, this invention proposes a follow-up hatch opening, closing, and locking mechanism for a long-stroke moving workbench: the hatch automatically opens, closes, and locks as the workbench moves, eliminating the need for a separate drive unit and avoiding the large mass and complex control issues caused by using multiple drive units. Furthermore, through a configuration transformation design, the mechanism avoids limiting the workbench's travel distance by introducing a follow-up mechanism, meeting the requirements for long-stroke movement and enabling the workbench to reach distant working positions outside the cabin. Summary of the Invention
[0003] This invention relates to a follow-up door opening, closing, and locking mechanism for a large-stroke moving worktable. The door automatically opens, closes, and locks as the worktable moves, eliminating the need for a separate door drive unit. This avoids the large mass and complex control issues caused by using multiple drive units in the entire system. Through the configuration transformation design of the mechanism, the limitations on the worktable's movement stroke caused by the introduction of the follow-up mechanism are also avoided, thus meeting the working requirements of large-stroke movement of the worktable and enabling it to reach the required working position at a greater distance outside the worktable.
[0004] This invention is achieved through the following method: This is a follow-up hatch opening, closing, and locking mechanism for a large-stroke moving workbench: the hatch body is hinged to the left and right opening hatch doors; the workbench is driven by an independent drive unit to move reciprocally in a linear fashion when leaving and returning to the hatch; a follow-up frame is fixedly installed on the workbench and moves reciprocally with it; the follow-up frame is equipped with grooves and racks, the grooves being divided into inclined groove sections and straight groove sections; the control lever and limit lever are both fixedly connected to the hatch doors and swing together with the hatch around the hinge center between the hatch body and the hatch door; the limit plate is equipped with a U-shaped groove, a V-shaped notch, and a toothed sector, and rotates around the support shaft mounted on the hatch body. During the workbench's movement out of the hatch from its docking position, the inclined groove side of the follow-up frame drives the roller at the end of the control lever, causing the control lever to swing around the hinge center, thus opening the hatch door. When the hatch door is fully opened, the rack on the follow-up frame meshes with the toothed sector on the limit plate, driving the limit plate to rotate to the limit lever locking position, thus locking and positioning the hatch door. As the worktable continues to move, the roller at the end of the control lever disengages from the straight groove on the follower frame. The worktable is no longer associated with the hatch opening, closing, and locking mechanism. The hatch remains open and locked, while the worktable can move to a more distant external working position. During the worktable's return movement from the outside, the roller at the end of the control lever approaches and then enters the straight groove on the follower frame. As the worktable moves, the rack on the follower frame engages with the gear sector on the limit plate, causing the limit plate to rotate to the unlocked position of the limit lever, thus unlocking the hatch. After the roller at the end of the control lever enters the inclined groove on the follower frame, the side of the inclined groove drives the roller at the end of the control lever to swing the control lever around the hinge center, closing the hatch. As the worktable moves to the docking position inside the hatch, the hatch will be in a closed and locked state. Attached Figure Description
[0005] Figure 1 A schematic diagram showing the workbench docked inside the cabin; Figure 2 This is a schematic diagram of the workbench after it has exited the cabin; Figure 3 This is a schematic diagram of the attitude of each mechanism after the hatch is closed and locked; Figure 4 A schematic diagram of the attitude of each mechanism during the opening of the hatch; Figure 5 A schematic diagram showing the attitude of each mechanism after the hatch is fully opened; Figure 6 A schematic diagram showing the attitude of each mechanism after the hatch is fully opened and locked. Figure 7 A schematic diagram of the attitude of each mechanism after the worktable reaches the extreme working position outside the cabin; In the diagram: hull—1, hatch—21, 22, workbench—3, follower frame—41, 42, control lever—51, 52, control lever end roller—511, 521, limit rod—61, 62, limit rod end roller—611, 621, limit plate—71, 72, limit ball—711, 721, compression spring—712, 722, hinge—81, 82. Detailed Implementation
[0006] The present invention will now be described in detail with reference to the accompanying drawings and preferred embodiments.
[0007] In this embodiment, a cylindrical enclosed compartment is formed by the cabin body 1 and the left and right cabin doors 21 and 22. Figure 1 The diagram shows the workbench 3 docked inside the cabin. The workbench 3 is driven by an independent drive unit to move back and forth in a linear motion from the cabin to the cabin (Note: Since this invention does not involve the structural type and drive method of the drive unit required for the workbench movement, it is not shown in the figure). Figure 2 The diagram shows the workbench 3 moving outside the cabin in the desired direction after hatches 21 and 22 are opened. The cabin body 1 is connected to the left and right hatches 21 and 22 by hinges 81 and 82, respectively.
[0008] The follow-up door opening, closing, and locking mechanism for a large-stroke moving worktable of the present invention is symmetrically arranged on both sides of the worktable 3 and between the left and right doors 21 and 22. The mechanism composition is as follows (see...). Figure 3 and Figure 4 Follower frames 41 and 42 are fixedly installed on the workbench 3 and move back and forth with the workbench 3; the follower frames 41 and 42 are provided with grooves and racks c1 and c2, the grooves are divided into inclined grooves a1 and a2 and straight grooves b1 and b2; the control levers 51 and 52 and the limit levers 61 and 62 are all fixedly connected to the hatches 21 and 22 and swing around the center of hinges 81 and 82 together with the hatches 21 and 22; the limit plates 71 and 72 are provided with U-shaped grooves e1 and e2 and gear sectors d1 and d2 as well as two V-shaped notches, and rotate around the support shaft axis installed on the cabin 1, and the rotation center of the limit plates 71 and 72 coincides with the support shaft axis.
[0009] During the movement of workbench 3 outside the cabin, the attitude changes of each mechanism are as follows: Figure 3 ® Figure 4 ® Figure 5 ® Figure 6 ® Figure 7 As shown, the specific implementation is as follows: From Figure 3Starting from the position shown, the rollers 511 and 521 at the end of the control lever are embedded in the grooves of the follower frame 41 and 42. The side of the inclined grooves a1 and a2 on the follower frame 41 and 42 drives the rollers 511 and 521 at the end of the control lever to make the control lever 51 and 52 swing around the center of the hinges 81 and 82, thereby opening the hatches 21 and 22. Figure 4 The diagram shows the state of hatches 21 and 22 during the opening process. During this process, the rollers 611 and 621 at the end of the limit rods gradually approach and enter the U-shaped grooves e1 and e2 on the limit plates 71 and 72. When hatches 21 and 22 are fully opened (as shown in the diagram),... Figure 5 As shown), the rollers 611 and 621 at the end of the limit rod move along the U-shaped grooves e1 and e2 to the rotation center of the limit discs 71 and 72, that is, at the axis of the support shaft of the limit discs 71 and 72. The rollers 511 and 521 at the end of the control rod begin to enter the straight grooves b1 and b2 on the follower frame 41 and 42. At this time, the hatches 21 and 22 are constrained by the straight grooves b1 and b2 and are in the open and positioned state, while the racks on the follower frame 41 and 42... C1 and C2 engage with the gear sectors d1 and d2 on the limiting discs 71 and 72, causing the limiting discs 71 and 72 to rotate. When the racks C1 and C2 disengage from the gear sector d1 and d2, the rollers 611 and 621 at the end of the limiting rods are in the locked position within the U-shaped grooves e1 and e2 on the limiting discs 71 and 72. The limiting rods 61 and 62 cannot swing around the center of the hinges 81 and 82, thus locking and positioning the hatches 21 and 22. (See...) Figure 6 As shown in the diagram, as the worktable 3 continues to move away from the cabin, the rollers 511 and 521 at the ends of the control levers will disengage from the straight grooves b1 and b2 of the follower frames 41 and 42. The worktable 3 will no longer be associated with the hatch opening / closing and locking mechanism. Under the action of the limit plates 71 and 72, the hatches 21 and 22 will remain open and locked, while the worktable 3 will continue to move autonomously to a more distant desired external working position. Figure 7 The location shown.
[0010] During the process of the workbench 3 returning from outside the cabin, the attitude changes of each mechanism are as follows: Figure 7 ® Figure 6 ® Figure 5 ® Figure 4 ® Figure 3 As shown, the specific implementation is as follows: as the workbench 3 moves from the external working position towards the cabin, the rollers 511 and 521 at the end of the control lever approach and then enter the straight grooves b1 and b2 on the follower frames 41 and 42 (as shown). Figure 6As the worktable 3 moves, the racks c1 and c2 on the follower frames 41 and 42 engage with the gear sectors d1 and d2 on the limit plates 71 and 72, causing the limit plates 71 and 72 to rotate. When the racks c1 and c2 disengage from the gear sectors d1 and d2, the U-shaped grooves e1 and e2 on the limit plates 71 and 72 no longer constrain the rollers 611 and 621 at the end of the limit rods to swing with the limit rods 61 and 62, thereby unlocking the hatches 21 and 22 (as shown). Figure 5 (As shown). When the rollers 511 and 521 at the end of the control lever enter the inclined grooves a1 and a2 on the follower frame 41 and 42, the sides of the inclined grooves a1 and a2 drive the rollers 511 and 521 at the end of the control lever, causing the control levers 51 and 52 to swing around the center of hinges 81 and 82, thereby closing the hatch doors 21 and 22. As the workbench 3 moves to the docking position inside the cabin, under the constraint of the control levers 51 and 52, the hatch doors 21 and 22 will be in a closed and locked state, that is, the system returns to the closed and locked state. Figure 3 The location shown.
[0011] The self-locking positioning method of limit plates 71 and 72 is as follows: two V-shaped notches are made on the rims of limit plates 71 and 72. When the limit balls 711 and 721 are aligned with one of the V-shaped notches on the rims of limit plates 71 and 72, the limit balls 711 and 721 will wedge into the V-shaped notches under the action of the compression springs 712 and 722, thereby locking and positioning the limit plates 71 and 72. The switching process between the two positions of limit plates 71 and 72 corresponds to the meshing process of the racks c1 and c2 on the follower frames 41 and 42 with the gear sectors d1 and d2 on the limit plates 71 and 72. Figure 5 and Figure 6 The diagram shows that limit plates 71 and 72 are in one of two locking and positioning states.
[0012] When the rollers 611 and 621 at the ends of the limiting rods are located at the center of the limiting discs 71 and 72, if the opening direction of the U-shaped grooves e1 and e2 on the limiting discs 71 and 72 is along the length direction of the limiting rods 61 and 62 (e.g., ... Figure 6 As shown), then the limiting rods 61 and 62 are in the locked position and cannot rotate around the center of hinges 81 and 82, and the hatches 21 and 22 are locked; if the opening direction of the U-shaped grooves e1 and e2 is perpendicular to the length direction of the limiting rods 61 and 62 (as shown), then the limiting rods 61 and 62 are in the locked position and cannot rotate around the center of hinges 81 and 82, and the hatches 21 and 22 are locked. Figure 5 As shown), the limit rods 61 and 62 rotate around the center of hinges 81 and 82, and the hatches 21 and 22 are unlocked.
[0013] The corresponding relationship of the motion states of each component is as follows: During the movement of the workbench 3 out of the cabin, the relative movement of the rollers 511 and 521 at the end of the control lever along the inclined grooves a1 and a2 on the follower frame 41 and 42 corresponds to the opening process of the hatch doors 21 and 22; when the rollers 511 and 521 at the end of the control lever move relative to each other along the inclined grooves a1 and a2 on the follower frame 41 and 42 to the junction of the inclined grooves a1 and a2 and the straight grooves b1 and b2, the hatch doors 21 and 22 are opened to the correct position, and the rollers 611 and 621 at the end of the limit lever are located at the rotation center of the limit plates 71 and 72; the relative movement of the rollers 511 and 521 at the end of the control lever along the straight grooves b1 and b2 corresponds to the relative movement of the racks c1 and c2 on the follower frame 41 and 42 and the limit plates 71 and 72. The meshing process of the upper gear sector d1 and d2 achieves the switching of the opening direction of the U-shaped grooves e1 and e2 on the limiting disks 71 and 72 from the direction perpendicular to the length of the limiting rods 61 and 62 to the direction along the length of the rods; when the rollers 511 and 521 at the end of the operating lever leave the straight grooves b1 and b2 on the follower frame 41 and 42, the follower frame 41 and 42 continue to move with the worktable 3, and the other components remain locked. During the retraction of the workbench 3, the rollers 511 and 521 at the end of the control lever enter the straight grooves b1 and b2 on the follower frames 41 and 42 and move relative to each other along the straight grooves b1 and b2. This corresponds to the meshing process between the racks c1 and c2 on the follower frames 41 and 42 and the gear sectors d1 and d2 on the limit plates 71 and 72. This process switches the opening direction of the U-shaped grooves e1 and e2 on the limit plates 71 and 72 from along the length of the limit rods 61 and 62 to perpendicular to the length of the rods. The relative movement of the rollers 511 and 521 at the end of the control lever along the inclined grooves a1 and a2 on the follower frames 41 and 42 corresponds to the closing process of the hatch doors 21 and 22. When the workbench 3 moves to the docking position inside the cabin, the hatch doors 21 and 22 will also be in the closed and locked position.
[0014] The profile of the inclined grooves on the follower frames 41 and 42 can be straight, curved, or a combination thereof; the width of the inclined grooves a1 and a2 and the straight grooves b1 and b2 are all equal to the diameter of the rollers 511 and 521 at the end of the control lever.
[0015] To ensure that the limit rod end rollers 611 and 621 can smoothly reach the locking position without interference, the side profiles of the U-shaped grooves e1 and e2 adopt arcs with the center of curvature of the hinges 81 and 82 as the center, and the groove width is equal to the diameter of the limit rod end rollers 611 and 621.
[0016] To compensate for positional deviations caused by various errors such as actual machining, assembly, clearances of moving parts, and deformations caused by various loads on the system, the ends of the straight grooves b1 and b2 of the follower frames 41 and 42 are V-shaped trimmed so that when the worktable 3 returns, the rollers 511 and 521 at the end of the control lever can smoothly enter the straight grooves b1 and b2 on the follower frames 41 and 42.
[0017] In particular, if the work platform 3 is located close to the cabin 1 outside the cabin, that is, the distance the work platform 3 moves outside the cabin is short, and if the rollers 511 and 521 at the end of the control lever can still be kept in the straight grooves b1 and b2 of the follower frame 41 and 42 after the work platform reaches the work position outside the cabin, then the locking mechanism is cancelled. The locking after the cabin doors 21 and 22 are opened is directly achieved by the constraint of the rollers 511 and 521 at the end of the control lever on the straight grooves b1 and b2 on the follower frame 41 and 42.
[0018] In summary, the above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.
Claims
1. A follow-up hatch opening, closing and locking mechanism for a large-stroke moving worktable, comprising a hatch body (1), hatches (21, 22), a worktable (3), a follow-up frame (41, 42), a control lever (51, 52), a limit lever (61, 62), and a limit plate (71, 72), characterized in that: The hull (1) is hinged to the left and right opening hatches (21, 22) by hinges (81, 82); the follower frame (41, 42), control lever (51, 52), limit rod (61, 62), and limit plate (71, 72) are symmetrically arranged on both sides of the workbench (3); the follower frame (41, 42) is fixedly installed on the workbench (3) and moves back and forth with the workbench (3); the follower frame (41, 42) is provided with grooves and racks, the grooves are divided into inclined groove sections and straight groove sections; the control lever (51, 52) and the limit rod (61, 62) are fixedly connected to the hatches (21, 22) and swing together with the hatches (21, 22) around the center of the hinges (81, 82). The limit plate (71, 72) is provided with a U-shaped groove, a toothed sector and two V-shaped notches, and rotates around the support shaft mounted on the cabin (1); the worktable (3) is driven by an independent drive unit to move reciprocatingly in a linear motion from the cabin to the cabin; during the process of the worktable (3) moving out of the cabin from the docking position, the rollers (511, 521) at the end of the control lever are embedded in the groove of the follower frame (41, 42), and the inclined groove side on the follower frame (41, 42) drives the rollers (511, 521) at the end of the control lever to make the control lever (51, 52) swing around the center of the hinge (81, 82) to realize the opening of the cabin door (21, 22). When the cabin door (21, 22) is opened Once in position, the rollers (511, 521) at the end of the control lever enter the straight groove on the follower frame (41, 42), and the rollers (611, 621) at the end of the limit rod reach the rotation center of the limit plate (71, 72) through the U-shaped groove on the limit plate (71, 72). At this time, the rack on the follower frame (41, 42) and the gear sector on the limit plate (71, 72) begin to mesh, driving the limit plate (71, 72) to rotate, thereby changing the opening direction of the U-shaped groove on the limit plate (71, 72). When the rack and gear sector disengage, the opening direction of the U-shaped groove on the limit plate (71, 72) rotates to the direction along the length of the limit rod (61, 62). The rollers (611, 621) at the end of the control lever are locked in the U-shaped groove on the limit plate (71, 72). The limit lever (61, 62) cannot swing around the center of the hinge (81, 82), so that the hatch (21, 22) is locked and positioned. As the worktable (3) continues to move, the rollers (511, 521) at the end of the control lever will disengage from the straight groove of the follower frame (41, 42). The worktable (3) is no longer associated with the hatch opening and closing and locking mechanism. At this time, the rollers (611, 621) at the end of the control lever are still locked. The hatch (21, 22) remains open and locked. The worktable (3) will continue to move to a more distant outdoor working position that it needs to reach.During the return movement of the worktable (3) from outside the cabin, the rollers (511, 521) at the end of the control lever approach and then enter the straight groove on the follower frame (41, 42). As the worktable (3) moves, the rack on the follower frame (41, 42) meshes with the gear sector on the limit plate (71, 72), causing the limit plate (71, 72) to rotate and change the opening direction of the U-shaped groove on the limit plate (71, 72) again. When the rack and gear sector disengage, the opening direction of the U-shaped groove on the limit plate (71, 72) is perpendicular to the length direction of the limit rod (61, 62). At this time, the limit... The U-shaped grooves on the positioning plates (71, 72) no longer constrain the rollers (611, 621) at the end of the limit rods as they swing with the limit rods (61, 62), thereby unlocking the hatches (21, 22). After the rollers (511, 521) at the end of the control levers enter the inclined grooves on the follower frame (41, 42), the side of the inclined grooves drives the rollers (511, 521) at the end of the control levers, causing the control levers (51, 52) to swing around the center of the hinges (81, 82), thus closing the hatches (21, 22). As the workbench (3) moves to the docking position inside the cabin, the hatches (21, 22) will be in a closed and locked state.
2. The follow-up door opening, closing and locking mechanism for a large-stroke moving worktable according to claim 1, characterized in that: When the rollers (511, 521) at the end of the control lever are in the inclined groove of the follower frame (41, 42), the hatch (21, 22) swings around the center of the hinge (81, 82) as the follower frame (41, 42) moves, that is, the hatch (21, 22) opens or closes; when the rollers (511, 521) at the end of the control lever are in the straight groove of the follower frame (41, 42), the hatch (21, 22) is in the limited state, that is, the hatch (21, 22) is stationary and does not swing as the follower frame (41, 42) moves.
3. The follow-up door opening, closing and locking mechanism for a large-stroke moving worktable according to claim 1, characterized in that: After exiting the cabin, the locking and positioning of the hatch (21, 22) after opening is achieved by the constraint of the limit plate (71, 72) on the limit rod (61, 62); after returning to the cabin, the locking and positioning of the hatch (21, 22) after closing is achieved by the constraint of the control lever (51, 52) on the side of the inclined groove of the follower frame (41, 42).
4. The follow-up door opening, closing and locking mechanism for a large-stroke moving worktable according to claim 1, characterized in that: Two V-shaped notches are opened on the rim of the limiting disc (71, 72). When the limiting ball (711, 721) is aligned with one of the V-shaped notches on the rim of the limiting disc (71, 72), the limiting ball (711, 721) will wedge into the V-shaped notch under the action of the compression spring (712, 722), thereby locking and positioning the limiting disc (71, 72) and restricting the opening direction of the U-shaped groove on the limiting disc (71, 72).
5. A follow-up door opening, closing, and locking mechanism for a large-stroke moving worktable according to claim 1, characterized in that: in The limiting discs (71, 72) are locked in the positioning position. The rollers (611, 621) at the end of the limiting rods (61, 62) are located at the rotation center of the limiting discs (71, 72). When the opening direction of the U-shaped groove is along the length direction of the limiting rods (61, 62), the limiting rods (61, 62) cannot rotate around the center of the hinges (81, 82), and the hatch (21, 22) is locked. When the opening direction is perpendicular to the length direction of the limiting rods (61, 62), the limiting rods (61, 62) rotate around the center of the hinges (81, 82), and the hatch (21, 22) is unlocked.
6. The follow-up door opening, closing and locking mechanism for a large-stroke moving worktable according to claim 1, characterized in that: During the engagement of the rack on the follower frame (41, 42) and the gear sector on the limit plate (71, 72), the rollers (511, 521) at the end of the control lever are located in the straight groove of the follower frame (41, 42), and the hatch (21, 22) is in the positioning state.
7. The follow-up door opening, closing and locking mechanism for a large-stroke moving worktable according to claim 1, characterized in that: The switching of the two locking positions of the limit plates (71, 72) and the opening direction of the U-shaped groove is achieved by the meshing of the rack on the follower frame (41, 42) with the gear sector on the limit plates (71, 72) to drive the limit plates (71, 72) to rotate.
8. The follow-up door opening, closing and locking mechanism for a large-stroke moving worktable according to claim 1, characterized in that: The profile of the inclined groove on the follower frame (41, 42) can be a straight line, a curve, or a combination thereof; The width of both the inclined groove and the straight groove is equal to the diameter of the rollers (511, 521) at the end of the control lever.
9. A follow-up door opening, closing and locking mechanism for a large-stroke moving worktable according to claim 1, characterized in that: To ensure that the limit rod end rollers (611, 621) can smoothly reach the locking position without interference, the side profile of the U-shaped groove on the limit plate (71, 72) adopts an arc with the center of curvature of the hinge (81, 82) as the center, and the groove width is equal to the diameter of the limit rod end rollers (611, 621).
10. A follow-up door opening, closing and locking mechanism for a large-stroke moving worktable according to claim 1, characterized in that: In order to compensate for the positional deviation, the straight groove ends of the follower frame (41, 42) are V-shaped to facilitate the smooth entry of the control lever end rollers (511, 521) into the straight groove of the follower frame (41, 42) when the worktable (3) returns.
11. A follow-up door opening, closing and locking mechanism for a large-stroke moving worktable according to claim 1, characterized in that: If the distance the workbench (3) moves out of the cabin is short, and the rollers (511, 521) at the end of the control lever can still be kept in the straight groove of the follower frame (41, 42) after the workbench (3) reaches the working position outside the cabin, then the locking mechanism is cancelled, and the locking after the cabin door (21, 22) is opened is directly achieved by the constraint of the rollers (511, 521) at the end of the control lever by the straight groove of the follower frame (41, 42).
Citation Information
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