Quick change mechanism

Abstract

The utility model relates to the technical field of product testing, and particularly discloses a quick-change mechanism, in which a mounting assembly is movably arranged on a rack along the height direction and is provided with a sliding groove extending along the length direction; the driving part is arranged on the rack, and the output end of the driving part can move in the height direction and is in transmission connection with the mounting assembly; the bearing part is movably arranged in the sliding groove in the length direction and can synchronously move along with the mounting assembly in the vertical direction. By means of the arrangement of the mechanism, the replacement process of the whole bearing part is simple and efficient, the replacement efficiency of the bearing part is greatly improved, the downtime is shortened, and the test efficiency is improved; in addition, no screw is involved, so that the situation that the positioning precision between the bearing piece and the rack is reduced due to abrasion of the screw is avoided, and the high-precision test requirement is met.

Description

Technical Field

[0001] This utility model relates to the field of product testing technology, and in particular to a quick-change mechanism. Background Technology

[0002] In the field of modern automated test equipment, especially in test systems for electronic components or modules, load boards play a crucial role. As the interface conversion board between the device under test (DUT) and the test machine, it is responsible for signal transmission, matching, and conditioning. With increasingly diverse testing needs and ever-increasing production efficiency requirements, frequent switching of test tasks necessitates rapid replacement of similar DUTs, making replacement a common practice.

[0003] However, traditional load plates are fixed to the frame with multiple screws. Each time they are replaced, multiple screws need to be loosened first, then the load plate is replaced, and then the multiple screws are tightened again. This results in low disassembly and assembly efficiency, long downtime during the replacement process, and reduced testing efficiency. At the same time, repeated replacements cause thread wear, which leads to a decrease in the positioning accuracy of the load plate and the frame, making it impossible to meet the requirements of high-precision testing.

[0004] Therefore, it is urgent to study a quick-change mechanism to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a quick-change mechanism to solve the problems of low load plate disassembly and assembly efficiency, resulting in low testing efficiency, and thread wear that prevents the high-precision testing requirements from being met in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Quick-change institutions include:

[0008] frame;

[0009] The mounting components are movably mounted on the frame along the height direction and have sliding grooves extending along the length direction;

[0010] A drive unit is provided on the frame, and the output end of the drive unit can move along the height direction and is connected to the mounting assembly in a transmission manner.

[0011] The support member is movably disposed in the sliding groove along the length direction and can move synchronously with the mounting assembly in the vertical direction.

[0012] As an optional technical solution for a quick-change mechanism, the output end of the drive member has an upper drive portion and a lower drive portion; the lower drive portion can abut against the mounting assembly to push the mounting assembly upward in the height direction when the output end of the drive member rises; the quick-change mechanism also includes an elastic element, and the upper drive portion and the mounting assembly are connected by the elastic element. When the output end of the drive member descends, the upper drive portion moves downward in the height direction and squeezes the elastic element, so that the elastic element applies a downward elastic force in the height direction to the mounting assembly.

[0013] As an optional technical solution for a quick-change mechanism, the driving component is an electric push rod, which includes a driving body, a push rod, and a limiting screw. The driving body is mounted on the frame. The push rod slides with the driving body along the height direction. The end of the push rod away from the driving body forms the lower driving part. The screw of the limiting screw is screwed to the lower driving part. The nut of the limiting screw faces the end of the push rod, forming the upper driving part. The elastic element is sleeved on the screw.

[0014] As an optional technical solution for a quick-change mechanism, the mounting assembly includes a mounting bracket with a sliding groove and a mounting platform connected to the mounting bracket. The mounting platform is movably disposed on the frame along the height direction. The mounting platform has a mounting channel. The diameter of the lower drive unit and the diameter of the nut are both larger than the diameter of the mounting channel. The screw portion passes through the mounting channel. The elastic element is a spring, which is sleeved on the screw, and its two ends respectively abut against the nut and the side of the mounting platform facing the nut.

[0015] As an optional technical solution for the quick-change mechanism, the mounting platform has a recessed mounting groove on the side facing the nut, the mounting groove surrounding the outer periphery of the mounting channel, and the end of the spring away from the nut located within the mounting groove; and / or,

[0016] The mounting bracket has two sliding grooves, and the openings of the two sliding grooves are arranged opposite each other along the width direction; the two ends of the bearing member along the width direction are respectively located in the two sliding grooves.

[0017] As an optional technical solution for a quick-change mechanism, the mounting bracket has a positioning screw hole whose extension direction forms an angle with the extension direction of the sliding groove and communicates with the sliding groove. The carrier has a positioning groove. The mounting assembly also includes a positioning screw. The positioning screw can be screwed into the positioning screw hole. A portion of the positioning screw can pass through the positioning screw hole and be inserted into the positioning groove to constrain the movement of the carrier and the mounting bracket in the length direction.

[0018] As an optional technical solution for a quick-change mechanism, the quick-change mechanism includes two driving members, which are located diagonally on the mounting assembly; and / or,

[0019] The frame is equipped with guide pins extending in the height direction, and the support member has guide holes extending in the height direction. When the mounting assembly descends in the height direction, it can drive the support member to descend so that the guide pins pass through the guide holes.

[0020] As an optional technical solution for a quick-change mechanism, the quick-change mechanism further includes a detection element and a trigger element. The detection element is disposed on the mounting assembly; the trigger element is disposed on the carrier and can move synchronously with the carrier; when the carrier moves along the sliding groove to the installation position, the trigger element triggers the detection element.

[0021] As an optional technical solution for a quick-change mechanism, the installation component further includes a limiting member disposed in the sliding groove; when the carrier moves along the sliding groove to the installation position, the carrier abuts against the limiting member.

[0022] As an optional technical solution for a quick-change mechanism, a handle is provided at one end of the carrier along its length.

[0023] This utility model has at least the following beneficial effects:

[0024] This invention provides a quick-change mechanism, comprising a frame, a mounting assembly, a drive component, and a carrier component. The mounting assembly is movably mounted on the frame along its height and has a sliding groove extending along its length. The drive component moves the mounting assembly, and the carrier component is movably mounted in the sliding groove. Using this mechanism, when changing the carrier component, the drive component first lifts the mounting assembly and carrier component together, then the carrier component is pulled out along the sliding groove, and another type of carrier component is slidably placed into the mounting assembly along the sliding groove. Finally, the drive component lowers the mounting assembly and carrier component together along its height. The entire carrier component replacement process is simple and efficient, greatly improving replacement efficiency and reducing downtime. Furthermore, since no screws are involved, the positioning accuracy between the carrier component and the frame is not affected, thus meeting high-precision testing requirements. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the quick-change mechanism in an embodiment of the present invention;

[0027] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0028] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0029] Figure 4 This is a schematic diagram of the internal structure of the quick-change mechanism in an embodiment of the present invention;

[0030] Figure 5 This is a partial cross-sectional view of the driving component and mounting assembly in an embodiment of the present invention.

[0031] In the picture:

[0032] 100. Frame; 110. Guide pin; 111. Guide seat; 120. Lifting button;

[0033] 200. Mounting component; 210. Mounting platform; 211. Mounting channel; 212. Mounting slot; 220. Mounting base; 230. Mounting bracket; 231. Sliding groove; 232. Limiting element; 240. Guide rail; 250. Slider; 260. Positioning screw;

[0034] 300. Driving component; 310. Driving body; 320. Push rod; 321. Lower driving part; 330. Limiting screw; 331. Screw; 332. Nut; 3321. Upper driving part; 340. Elastic component;

[0035] 400, Supporting component; 410, Guide hole; 420, Positioning groove; 430, Handle;

[0036] 510. Detection component; 520. Trigger component. Detailed Implementation

[0037] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0038] In this application, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0039] In this application, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this application generally indicates that the preceding and following related objects have an "and / or" relationship.

[0040] In this application, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0041] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.

[0042] like Figures 1 to 5As shown, this embodiment provides a quick-change mechanism, which includes a frame 100, a mounting assembly 200, a drive component 300, and a support component 400. The mounting assembly 200 is movably mounted on the frame 100 along the height direction and has a sliding groove 231 extending along the length direction. The drive component 300 is mounted on the frame 100, and its output end is movable along the height direction and is drively connected to the mounting assembly 200. The support component 400 is movably mounted in the sliding groove 231 along the length direction and can move synchronously with the mounting assembly 200 along the vertical direction. With the aforementioned mechanism, when replacing the carrier component 400, the mounting assembly 200 and the carrier component 400 are first raised together via the drive component 300. Then, the carrier component 400 is pulled out from the sliding groove 231, and another type of carrier component 400 is moved along the extension direction of the sliding groove 231 to be placed on the mounting assembly 200. Finally, the mounting assembly 200 and the carrier component 400 are lowered together via the drive component 300. The entire replacement process of the carrier component 400 is simple and efficient, greatly improving the replacement efficiency of the carrier component 400, reducing downtime, and improving testing efficiency. In addition, since no screws are involved, there is no reduction in the positioning accuracy between the carrier component 400 and the frame 100 due to screw wear, thus meeting the requirements of high-precision testing.

[0043] In some embodiments, combined with Figure 5As shown, the travel distance of the output end of the drive component 300 is fixed. During testing, to ensure the relative position of the support component 400 and the frame 100, the descent position of the output end of the drive component 300 needs to be precisely controlled, which increases control costs and makes the installation and debugging process difficult. Therefore, in this embodiment, the output end of the drive component 300 has an upper drive part 3321 and a lower drive part 321. The lower drive part 321 can abut against the mounting component 200 so that when the output end of the drive component 300 rises, it pushes the mounting component 200 to rise along the height direction. The quick-change mechanism also includes an elastic element 340. The upper drive part 3321 and the mounting component 200 are connected by the elastic element 340. When the output end of the drive component 300 descends, the upper drive part 3321 moves downward along the height direction and squeezes the elastic element 340 to deform, so that the elastic element 340 applies a downward elastic force to the mounting component 200, thereby causing the mounting component 200 to move downward along the height direction. The elastic element 340 provides travel protection for the mounting assembly 200 when the output end of the drive element 300 descends. This allows the movement distance of the output end of the drive element 300 to be slightly greater than the movement distance of the mounting assembly 200 during the descent of the mounting assembly 200. This ensures that the mounting assembly 200 and the carrier 400 descend to their designated positions. Once the mounting assembly 200 and the carrier 400 reach their limit positions, they stop moving. This causes the spring to compress and buffer the distance the output end of the drive element 300 may continue to descend, preventing excessive pressure when the carrier 400 contacts the frame 100, which could damage the frame 100 or the carrier 400.

[0044] In some embodiments, the drive member 300 is an electric push rod, which includes a drive body 310, a push rod 320, and a limiting screw 330. The drive body 310 is disposed on the frame 100. The push rod 320 is slidably engaged with the drive body 310 in the height direction. The end of the push rod 320 away from the drive body 310 forms a lower drive portion 321. The screw 331 of the limiting screw 330 is screwed to the lower drive portion 321. The nut 332 of the limiting screw 330 forms an upper drive portion 3321 facing the end of the push rod 320. An elastic member 340 is sleeved on the screw 331. This configuration allows the push rod 320 to rise, causing the mounting assembly 200 to rise along the height direction; when the push rod 320 descends, it causes the limiting screw 330 to descend along the height direction, and the nut 332 of the limiting screw 330 compresses the elastic element 340, causing the mounting assembly 200 to descend; the limiting screw 330 can also adjust the initial length of the elastic element 340, thereby adjusting the initial elastic force. In other embodiments, the drive element 300 can also be a cylinder.

[0045] Regarding the structure and installation method of the elastic element 340, in some embodiments, the mounting assembly 200 includes a mounting bracket 230 with a sliding groove 231 and a mounting platform 210 connected to the mounting bracket 230. The mounting platform 210 is movably disposed on the frame 100 along the height direction. The mounting platform 210 has a mounting channel 211. The diameter of the lower drive part 321 and the diameter of the nut 332 are both larger than the diameter of the mounting channel 211. The screw 331 is partially inserted into the mounting channel 211. The elastic element 340 is a spring. The spring is sleeved on the screw 331, and its two ends abut against the nut 332 and the side of the mounting platform 210 facing the nut 332, respectively. As the mounting assembly 200 descends along the height direction, the nut 332 descends, thereby compressing the spring. The spring generates elastic force after being compressed, and the lower end of the spring abuts against the mounting platform 210, thereby generating downward elastic pressure on the mounting platform 210 and causing the mounting platform 210 to move downward. At the same time, the spring is constrained on the screw 331, so that the spring can deform along the axis of the screw 331 during the compression process, ensuring the reliability of the deformation process.

[0046] The mounting platform 210 has a recessed mounting groove 212 on the side facing the nut 332. The mounting groove 212 surrounds the outer periphery of the mounting channel 211, and the end of the spring away from the nut 332 is located inside the mounting groove 212. Furthermore, the inner diameter of the mounting groove 212 is equal to the outer diameter of the spring, and the inner diameter of the spring is larger than the outer diameter of the screw 331. The bottom of the spring is located in the mounting groove 212. On the one hand, this ensures the positional stability of the spring, avoids radial misalignment, and ensures that there is always a gap between the spring and the screw 331 to prevent friction. On the other hand, it also effectively increases the length of the spring, ensuring that it can provide sufficient elastic force.

[0047] Combination Figure 2 As shown, the mounting assembly 200 includes a mounting base 220, a mounting platform 210, and a mounting bracket 230, which are fixedly connected to each other via the mounting base 220. A guide rail 240 is mounted on the frame 100, and a slider 250 that slides with the guide rail 240 is mounted on the mounting base 220.

[0048] In some embodiments, to ensure the stress stability of the mounting assembly 200, the quick-change mechanism includes two drive members 300, which are located on opposite sides of the mounting assembly 200.

[0049] Two mounting brackets 230 are provided, and the openings of two sliding grooves 231 on the two mounting brackets 230 are arranged opposite each other along the width direction; the two ends of the plate-shaped support member 400 along the width direction are respectively located in the two sliding grooves 231. This arrangement allows the support member 400 to stably cooperate with the two mounting brackets 230. In this embodiment, two driving members 300 are respectively connected to the two mounting brackets 230; and in the length direction, the driving members 300 are located at the middle position of the mounting brackets 230.

[0050] During the lifting process, to ensure the relative stability between the load-bearing component 400 and the mounting bracket 230, in some embodiments, a combination of... Figure 3 As shown, the mounting bracket 230 has a positioning screw hole whose extension direction forms an angle with the extension direction of the sliding groove 231 and communicates with the sliding groove 231. The carrier 400 has a positioning groove 420. The mounting assembly 200 also includes a positioning screw 260, which can be screwed into the positioning screw hole. A portion of the positioning screw 260 can pass through the positioning screw hole and be inserted into the positioning groove 420 to constrain the movement of the carrier 400 and the mounting bracket 230 in the length direction. When the carrier 400 is installed into the sliding groove 231, the positioning screw 260 is screwed into the positioning screw hole, and a portion of it passes through the positioning screw hole and is inserted into the positioning groove 420, thereby fixing the carrier 400 and the mounting bracket 230. During the lifting and lowering process of the mounting bracket 230, the positional stability of the carrier 400 and the mounting bracket 230 is ensured. To facilitate the removal or pushing of the carrier 400 from or into the sliding groove 231, in some embodiments, a handle 430 is provided at one end of the carrier 400 along its length.

[0051] Before the mounting component 200 is lowered, the carrier 400 needs to be installed into the sliding groove 231. To ensure that the carrier 400 is installed in place, in some embodiments, combined with Figure 4 As shown, the quick-change mechanism also includes a detection element 510 and a trigger element 520. The detection element 510 is located on the mounting assembly 200; the trigger element 520 is located on the carrier 400 and can move synchronously with the carrier 400. When the carrier 400 moves along the sliding groove 231 to the installation position, the trigger element 520 triggers the detection element 510; thus, the detection element 510 can send a detection signal to ensure that the carrier 400 is installed in place, that is, the carrier 400 is installed to the bottom of the sliding groove 231. To ensure operational safety, in this embodiment, the controller and the detection element 510 are communicatively connected, and the controller and the drive element 300 are communicatively connected. When the controller receives the detection signal, it controls the drive element 300 to be energized, thereby ensuring that the mounting assembly 200 can only descend after the carrier 400 has moved into place, improving the safety of the movement of the mounting assembly 200 and avoiding interference with the frame 100 when the carrier 400 is not installed in place descends. The frame 100 is equipped with a lifting button 120. After the drive unit 300 is powered on, the drive unit 300 can be controlled to move by pressing the lifting button 120, thereby controlling the lifting of the mounting component 200.

[0052] To further ensure the positional accuracy of the carrier 400, in some embodiments, combined with Figure 2As shown, the mounting assembly 200 also includes a limiting member 232, which is disposed in the sliding groove 231. When the carrier 400 moves along the sliding groove 231 to the mounting position, the carrier 400 abuts against the limiting member 232. The limiting member 232 is located at the end of the sliding groove 231 and seals the sliding groove 231. When the carrier 400 abuts against the limiting member 232, the relative position of the carrier 400 and the mounting bracket 230 is accurately guaranteed through a hard limiting method.

[0053] After the support member 400 descends, to ensure the accurate relative position of the support member 400 and the frame 100, in some embodiments, the frame 100 is equipped with guide pins 110 extending in the height direction, and the support member 400 has guide holes 410 extending in the height direction. The descent of the mounting assembly 200 in the height direction can drive the support member 400 to descend, so that the guide pins 110 pass through the guide holes 410. The cooperation between the guide pins 110 and the guide holes 410 allows the position of the support member 400 in the horizontal direction to be adjusted and positioned, thereby ensuring the accuracy of the relative position between the support member 400 and the frame 100 in the horizontal direction. A guide seat 111 is mounted on the frame 100, and the guide pins 110 are mounted on the guide seat 111. Further, the frame 100 is equipped with at least two guide pins 110, and the support member 400 has at least two guide holes 410 corresponding one-to-one with the guide pins 110.

[0054] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A quick-change mechanism, characterized in that, include: Rack (100); The mounting assembly (200) is movably disposed on the frame (100) in the height direction and has a sliding groove (231) extending in the length direction; A drive unit (300) is provided on the frame (100), and the output end of the drive unit (300) can move along the height direction and is connected to the mounting assembly (200) in a transmission manner; The carrier (400) is movably disposed in the sliding groove (231) along the length direction and can move synchronously with the mounting assembly (200) in the vertical direction.

2. The quick-change mechanism according to claim 1, characterized in that, The output end of the drive member (300) has an upper drive portion (3321) and a lower drive portion (321); the lower drive portion (321) can abut against the mounting assembly (200) to push the mounting assembly (200) upward in the height direction when the output end of the drive member (300) rises; the quick-change mechanism also includes an elastic element (340), the upper drive portion (3321) and the mounting assembly (200) are connected by the elastic element (340), when the output end of the drive member (300) falls, the upper drive portion (3321) moves downward in the height direction and squeezes the elastic element (340) so that the elastic element (340) applies a downward elastic force in the height direction to the mounting assembly (200).

3. The quick-change mechanism according to claim 2, characterized in that, The driving component (300) is an electric push rod, which includes a driving body (310), a push rod (320), and a limiting screw (330). The driving body (310) is disposed on the frame (100). The push rod (320) and the driving body (310) slide in the height direction. The end of the push rod (320) away from the driving body (310) forms the lower driving part (321). The screw (331) of the limiting screw (330) is screwed to the lower driving part (321). The nut (332) of the limiting screw (330) facing the end of the push rod (320) forms the upper driving part (3321). The elastic element (340) is sleeved on the screw (331).

4. The quick-change mechanism according to claim 3, characterized in that, The mounting assembly (200) includes a mounting bracket (230) with a sliding groove (231) and a mounting platform (210) connected to the mounting bracket (230). The mounting platform (210) is movably disposed on the frame (100) along the height direction. The mounting platform (210) has a mounting channel (211). The diameter of the lower drive part (321) and the diameter of the nut (332) are both larger than the diameter of the mounting channel (211). The screw (331) is partially inserted into the mounting channel (211). The elastic element (340) is a spring. The spring is sleeved on the screw (331), and its two ends respectively abut against the nut (332) and the side of the mounting platform (210) facing the nut (332).

5. The quick-change mechanism according to claim 4, characterized in that, The mounting platform (210) has a recessed mounting groove (212) on the side facing the nut (332), the mounting groove (212) surrounding the outer periphery of the mounting channel (211), and the end of the spring away from the nut (332) located within the mounting groove (212); and / or, The mounting bracket (230) has two openings, and the openings of the two sliding grooves (231) are arranged opposite each other along the width direction; the two ends of the bearing member (400) along the width direction are respectively located in the two sliding grooves (231).

6. The quick-change mechanism according to claim 4, characterized in that, The mounting bracket (230) has a positioning screw hole whose extension direction forms an angle with the extension direction of the sliding groove (231) and communicates with the sliding groove (231). The carrier (400) has a positioning groove (420). The mounting assembly (200) further includes a positioning screw (260). The positioning screw (260) can be screwed into the positioning screw hole. A portion of the positioning screw (260) can pass through the positioning screw hole and be inserted into the positioning groove (420) to constrain the movement of the carrier (400) and the mounting bracket (230) in the length direction.

7. The quick-change mechanism according to any one of claims 1-6, characterized in that, The quick-change mechanism includes two drive members (300), which are located diagonally on the mounting assembly (200); and / or, The frame (100) is equipped with a guide pin (110) extending in the height direction, and the support member (400) has a guide hole (410) extending in the height direction. When the mounting assembly (200) descends in the height direction, it can drive the support member (400) to descend so that the guide pin (110) passes through the guide hole (410).

8. The quick-change mechanism according to any one of claims 1-6, characterized in that, The quick-change mechanism further includes a detection element (510) and a trigger element (520). The detection element (510) is disposed on the mounting assembly (200). The trigger element (520) is disposed on the support member (400) and can move synchronously with the support member (400). When the support member (400) moves along the sliding groove (231) to the installation position, the trigger element (520) triggers the detection element (510).

9. The quick-change mechanism according to any one of claims 1-6, characterized in that, The mounting assembly (200) further includes a limiting member (232), which is disposed in the sliding groove (231); when the carrier (400) moves along the sliding groove (231) to the mounting position, the carrier (400) abuts against the limiting member (232).

10. The quick-change mechanism according to any one of claims 1-6, characterized in that, The support member (400) is provided with a handle (430) at one end along its length.

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