Chuck positioning anti-loosening device

Abstract

The utility model relates to a kind of chuck positioning anti-loosening device, including installation base plate, transverse support frame, longitudinal support frame and chuck assembly;The number of transverse support frame is two and is distributed along left and right direction, longitudinal support frame is several and is distributed along front and back direction;The bottom of installation base plate is connected together with the transverse support frame below in two sides respectively before and after, several longitudinal support frames are installed along left and right direction below transverse support frame, several chuck assemblies are installed along front and back direction on longitudinal support frame.The chuck assembly of the utility model is connected with longitudinal support frame by first chuck mounting bracket, second chuck mounting bracket and second contact piece, and the stability of chuck assembly is ensured by second locking member and second contact piece.

Description

Technical Field

[0001] This utility model relates to the field of industrial automation technology, and in particular to a suction cup positioning and anti-loosening device. Background Technology

[0002] Steel and aluminum sheet products such as door rings require a series of loading and unloading operations during processing. The traditional method is to use a suction cup mechanism for loading and unloading.

[0003] A search revealed Chinese patent publication number CN215755189U, which discloses a door ring stacking unloading mechanism, including two first unloading base plates and a second unloading base plate arranged along the Y-axis. Several unloading mechanisms are evenly connected and arranged at the bottom of the first unloading base plate and the second unloading base plate along the Y-axis. The unloading mechanism includes a support rod arranged along the X-axis. A first suction cup unit is connected and arranged at the bottom of the support rod along the negative X-axis, and a second suction cup unit is connected and arranged at the bottom of the support rod along the positive X-axis.

[0004] While existing unloading mechanisms allow for some adjustments via oblong holes and cylinders, the overall suction cup layout has significant limitations. The first suction cup unit is a fixed suction cup, allowing only minor X-axis position adjustments via the first and second oblong holes, preventing flexible multi-dimensional layout. Although the first and second suction cups of the second suction cup unit can move along the X-axis via cylinders, and the second suction cup can also move along the Y-axis by pushing the cylinder, the number of suction cups in a single unloading mechanism is limited (maximum 2 movable suction cups + 1 fixed suction cup), and the suction cup density is low. For large steel and aluminum sheets, this layout makes it difficult to flexibly set sufficient adsorption points according to the sheet size and center of gravity distribution, easily leading to uneven force on the sheet and posing a risk of tilting or falling.

[0005] In view of the above-mentioned shortcomings, the designer actively researched and innovated in order to create a suction cup positioning and anti-loosening device, which would have greater industrial application value. Utility Model Content

[0006] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a suction cup positioning and anti-loosening device.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A suction cup positioning and anti-loosening device includes a mounting base plate, a transverse support frame, a longitudinal support frame, and a suction cup assembly; There are two transverse support frames distributed along the left-right direction, and several longitudinal support frames distributed along the front-back direction; The bottom front and rear sides of the mounting base are connected to the horizontal support frame below. Several vertical support frames are installed below the horizontal support frame along the left and right direction. Several suction cup assemblies are installed on the vertical support frames along the front and rear direction. The suction cup assembly includes a first suction cup mounting bracket, a second suction cup mounting bracket, a suction cup rod, and a suction cup. The first and second suction cup mounting brackets are mounted together with the inner longitudinal support frame. The suction cup rod is installed in the first suction cup mounting bracket in a vertical direction, and a suction cup is installed at the bottom of the suction cup rod.

[0008] As a further improvement of this utility model, the mounting base plate is connected to the first fixing plate located below the transverse support frame by a number of first connecting rods on all four sides.

[0009] As a further improvement of this utility model, a locking base plate is provided between the longitudinal support frame and the transverse support frame. The locking base plate is connected to the second fixed plate located below the longitudinal support frame through a number of second connecting rods. A locking side plate is installed on at least one side of the locking base plate in the front-back direction. A number of locking holes are evenly opened on the transverse support frame in the left-right direction. The first locking member installed on the locking side plate can be connected to the locking holes.

[0010] As a further improvement of this utility model, a first contact member is also installed on the locking side plate on one side of the first locking member, and the first contact member can contact the inner transverse support frame.

[0011] As a further improvement of this utility model, a guide rail distributed along the left and right direction is installed at the bottom of the transverse support frame, and a slider connected to the guide rail is installed on the locking base plate.

[0012] As a further improvement of this utility model, the top and bottom of the first suction cup mounting bracket and the second suction cup mounting bracket are respectively locked together by the second locking member.

[0013] As a further improvement of this utility model, a second contact member is also installed on the second suction cup mounting bracket between the two second locking members. The second contact member can contact the inner longitudinal support frame.

[0014] As a further improvement of this utility model, an upper limit block is installed on the side of the suction cup rod above the first suction cup mounting frame, and a lower limit block is installed on the side of the suction cup rod below the first suction cup mounting frame.

[0015] As a further improvement of this utility model, a spring is installed on the suction cup rod located below the first suction cup mounting bracket and between the lower limit block.

[0016] By means of the above solution, this utility model has at least the following advantages: This invention employs a double-layer support structure consisting of a horizontal support frame and a vertical support frame. The horizontal support frame is distributed along the left-right direction, while the vertical support frame is distributed along the front-back direction. The vertical support frame can slide along the horizontal support frame via a guide rail slider, and the suction cup assembly can be flexibly adjusted along the vertical support frame. This multi-level, multi-directional adjustment structure allows for the dense and even arrangement of multiple suction cup assemblies according to the size, shape, and center of gravity distribution of large steel and aluminum plates, ensuring comprehensive coverage of key areas of the plate by the suction points. This solves the problem of limited suction cup quantity and fixed layout in compared patents.

[0017] The longitudinal support frame and the transverse support frame of this utility model are connected by a locking base plate, a locking side plate and a first locking member. The first locking member is embedded in the locking hole of the transverse support frame to achieve rigid fixation. Combined with the flexible friction buffer of the first contact member, it effectively prevents loosening caused by vibration.

[0018] The suction cup assembly of this utility model is connected to the longitudinal support frame through the first suction cup mounting bracket and the second suction cup mounting bracket. The second locking member and the second contact member together ensure the stability of the suction cup assembly.

[0019] The suction cup assembly of this invention features a spring-buffered structure. The spring is located below the first suction cup mounting bracket and between it and the lower limit block. When the suction cup contacts the substrate, the spring can absorb the impact energy through compression, preventing damage to the suction cup and the substrate from rigid collisions. The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the following are the preferred embodiments of this utility model and are described in detail with reference to the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a suction cup positioning and anti-loosening device according to this utility model; Figure 2 yes Figure 1 A partially enlarged structural diagram of the mounting point between the central mounting base and the transverse support frame; Figure 3 yes Figure 1 A partially enlarged structural diagram of the installation location of the transverse and longitudinal support frames; Figure 4 yes Figure 1A partially enlarged structural diagram of the mounting point of the central suction cup assembly and the longitudinal support frame.

[0022] The meanings of the labels in the figures are as follows.

[0023] Mounting base plate 1, horizontal support frame 2, vertical support frame 3, suction cup assembly 4, product 5, first connecting rod 6, first fixing plate 7, locking side plate 8, first locking component 9, first contact component 10, locking hole 11, locking base plate 12, guide rail 13, slider 14, second connecting rod 15, second fixing plate 16, first suction cup mounting bracket 17, second suction cup mounting bracket 18, second locking component 19, second contact component 20, suction cup rod 21, upper limit block 22, lower limit block 23, spring 24, suction cup 25. Detailed Implementation

[0024] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0025] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] The first embodiment of this utility model: like Figures 1-4 As shown, a suction cup positioning and anti-loosening device in this embodiment mainly includes a mounting base plate 1, a horizontal support frame 2, a vertical support frame 3, and a suction cup assembly 4. There are two horizontal support frames 2 distributed along the left and right directions, and several vertical support frames 3 distributed along the front and back directions.

[0027] The mounting base plate 1 is connected to the first fixing plate 7 located below the transverse support frame 2 by several first connecting rods 6 on all four sides.

[0028] A locking base plate 12 is provided between the longitudinal support frame 3 and the transverse support frame 2. The locking base plate 12 is connected to the second fixing plate 16 located below the longitudinal support frame 3 through a number of second connecting rods 15. A locking side plate 8 is installed on at least one side of the locking base plate 12 in the front-back direction. A number of locking holes 11 are evenly opened on the transverse support frame 2 in the left-right direction. The first locking member 9 installed on the locking side plate 8 can be connected to the locking holes 11.

[0029] A first contact 10 is also installed on the locking side plate 8 on one side of the first locking member 9. The first contact 10 can contact the inner transverse support frame 2.

[0030] A guide rail 13 distributed along the left and right direction is installed at the bottom of the horizontal support frame 2, and a slider 14 connected to the guide rail 13 is installed on the locking base plate 12.

[0031] This embodiment employs a double-layer support structure consisting of a horizontal support frame and a vertical support frame. The horizontal support frames are distributed along the left-right direction, while the vertical support frames are distributed along the front-back direction. The vertical support frames can slide along the horizontal support frames via guide rails, and the suction cup components can be flexibly adjusted in position along the vertical support frames. This multi-level, multi-directional adjustment structure allows for the dense and even arrangement of multiple suction cup components according to the size, shape, and center of gravity distribution of large steel and aluminum sheets. This ensures that the suction points fully cover the key areas of the sheet, solving the problem of limited suction cup quantity and fixed layout in the compared patent.

[0032] The bottom front and rear sides of the mounting base 1 are connected to the horizontal support frame 2 below. Several vertical support frames 3 are installed below the horizontal support frame 2 along the left and right direction. Several suction cup assemblies 4 for gripping products 5 are installed on the vertical support frames 3 along the front and rear direction.

[0033] The suction cup assembly 4 includes a first suction cup mounting bracket 17, a second suction cup mounting bracket 18, a suction cup rod 21, and a suction cup 25. It is mounted together with the inner longitudinal support frame 3 through the first suction cup mounting bracket 17 and the second suction cup mounting bracket 18. The suction cup rod 21 is mounted vertically in the first suction cup mounting bracket 17, and the suction cup 25 is mounted at the bottom of the suction cup rod 21.

[0034] The top and bottom of the first suction cup mounting bracket 17 and the second suction cup mounting bracket 18 are respectively locked together by second locking members 19. A second contact member 20 is also installed on the second suction cup mounting bracket 18 between the two second locking members 19. The second contact member 20 can contact the inner longitudinal support frame 3.

[0035] An upper limit block 22 is installed on the side of the suction cup rod 21 above the first suction cup mounting bracket 17, and a lower limit block 23 is installed on the side of the suction cup rod 21 below the first suction cup mounting bracket 17. A spring 24 is installed on the suction cup rod 21 located between the first suction cup mounting bracket 17 and the lower limit block 23. The suction cup assembly is equipped with a spring buffer structure. The spring is located between the first suction cup mounting bracket and the lower limit block. When the suction cup contacts the plate, the spring can absorb the impact energy through compression, avoiding damage to the suction cup and the plate from rigid collisions. Furthermore, the upper and lower limit blocks strictly limit the travel of the suction cup rod, preventing component overload caused by excessive suction cup movement, further improving the safety and service life of the equipment.

[0036] This embodiment features a multi-layered anti-loosening structure: the longitudinal support frame and the transverse support frame are connected by a locking base plate, a locking side plate, and a first locking member. The first locking member is embedded in the locking hole of the transverse support frame to achieve rigid fixation, and combined with the flexible friction buffer of the first contact member, it effectively prevents loosening caused by vibration. The suction cup assembly is connected to the longitudinal support frame through the first and second suction cup mounting brackets, and the second locking member and the second contact member together ensure that the suction cup assembly does not shift. At the same time, the mounting base plate is connected to the first fixing plate through the first connecting rod, and the locking base plate is connected to the second fixing plate through the second connecting rod, making the overall structure more rigid and able to stably withstand the weight load of large steel and aluminum plates.

[0037] In this embodiment, the suction cup positioning and anti-loosening device is installed on the front and rear sides of the bottom of the mounting base, which is connected to the horizontal support frame. Multiple vertical support frames are installed on the horizontal support frame along the left and right directions, and multiple suction cup components are installed on the vertical support frames along the front and back directions. This dense and flexibly arranged suction cup configuration can better adapt to devices of different shapes, sizes and weights, and provide more comprehensive and stable positioning support.

[0038] The second embodiment of this utility model: This embodiment discloses a suction cup positioning and anti-loosening device, suitable for positioning and fixing various types of equipment, especially for the stable adsorption requirements of large and irregularly shaped equipment. Its overall structure consists of a mounting base plate, a horizontal support assembly, a vertical adjustment assembly, a suction cup assembly, and a locking and anti-loosening assembly, as detailed below: (a) Basic support structure The mounting base plate 1 can be made of aluminum alloy sheet and has an overall rectangular structure. Two transverse support frames 2 are fixed to the front and rear sides of the bottom of the mounting base plate 1 by welding. The transverse support frames 2 can be made of C-shaped steel, distributed parallel to each other in the left and right direction, with a length consistent with the left and right width of the mounting base plate 1. Four first connecting rods 6 are evenly distributed around the perimeter of the mounting base plate 1. The first connecting rods 6 are 10mm diameter stainless steel bolts, and their bottom ends are threaded to a first fixing plate 7 located below the transverse support frames 2. The first fixing plate 7 is made of 4mm thick steel plate. Through the tensioning effect of the first connecting rods 6, the mounting base plate 1 and the transverse support frames 2 form a rigid overall support. (ii) Longitudinal adjustment components At the bottom of the transverse support frame 2, guide rails 13, distributed in the left-right direction, are fixed by bolts. The guide rails 13 are HGR20 linear guide rails, and one parallel guide rail is installed on each transverse support frame 2. The longitudinal support frames 3 are made of square steel, and there are multiple longitudinal support frames distributed in the front-back direction. A locking base plate 12 is fixed to the top of each longitudinal support frame 3 by bolts. A slider 14, adapted to the guide rail 13, is installed at the bottom of the locking base plate 12. The slider 14 slides with the guide rail 13, allowing the longitudinal support frame 3 to move flexibly in the left-right direction. The locking base plate 12 is connected to a second fixing plate 16 located below the longitudinal support frame 3 via four second connecting rods 15. The second connecting rods 15 are high-strength bolts, ensuring the load-bearing stability of the longitudinal support frame 3. (iii) Locking and anti-loosening components Locking side plates 8, made of steel, are welded to both the front and rear sides of the locking base plate 12. Locking holes 11, each 12mm in diameter, are evenly spaced along the left-right direction on the side of the transverse support frame 2, with a spacing of 50mm between adjacent holes. A first locking element 9 is installed on the locking side plate 8. The first locking element 9 is a combination of an M10 bolt and a wing nut. The bolt end can be inserted into the locking hole 11, and the longitudinal support frame 3 is fixed in position by tightening the nut. A first contact element 10 is threadedly connected to the locking side plate 8 inside the first locking element 9. The inner side of the first contact element 10 is a 5mm thick silicone pad. When the first locking element 9 is locked, the silicone pad is in close contact with the side of the transverse support frame 2, increasing frictional resistance and buffering vibration. (iv) Suction Cup Assembly Each longitudinal support frame 3 is equipped with multiple suction cup assemblies 4 along the front-to-back direction. Each suction cup assembly 4 consists of a first suction cup mounting bracket 17, a second suction cup mounting bracket 18, a suction cup rod 21, and a suction cup 25. Both the first and second suction cup mounting brackets 17 and 18 are C-shaped or U-shaped steel plates, fastened to both sides of the longitudinal support frame 3. The top and bottom are locked by second locking members 19, which are combinations of M8 bolts and nuts. A second contact member 20 with a thickness of 3mm is threaded onto the second suction cup mounting bracket 18 between the two second locking members 19. The inner side of the second contact member 20 is a 5mm thick silicone pad (made of silicone), which makes tight contact with the side of the longitudinal support frame 3. The suction cup rod 21 is a 16mm diameter chrome-plated round rod that passes vertically through the guide hole of the first suction cup mounting bracket 17. Its bottom is threadedly connected to the suction cup 25 (a 100mm diameter nitrile rubber suction cup). An upper limit block 22 (a steel block with a diameter of 25mm) is welded to the upper position of the suction cup rod 21 above the first suction cup mounting bracket 17, and a lower limit block 23 (a steel block of the same specification) is welded to the lower position below it. The distance between the two is 80mm, which limits the travel of the suction cup rod 21. A spring 24 is fitted on the suction cup rod 21 between the lower limit block 23 and the lower part of the first suction cup mounting bracket 17. The spring 24 is a compression spring with a wire diameter of 3mm, a free length of 50mm, and an elastic coefficient of 2N / mm. Description of the working process of this embodiment (I) Equipment Adjustment Stage Based on the size and shape of the device to be adsorbed, first adjust the left and right positions of the longitudinal support frame 3: loosen the wing nut of the first locking member 9, push the longitudinal support frame 3 to slide along the guide rail 13 to the target position, so that the distribution of the suction cup assembly 4 matches the surface to be adsorbed on the device; then insert the bolt of the first locking member 9 into the corresponding locking hole 11, tighten the nut, at which point the first contact member 10 is in close contact with the transverse support frame 2, completing the positioning of the longitudinal support frame 3. Next, adjust the front and rear positions of the suction cup assembly 4: loosen the nut of the second locking member 19, slide the suction cup assembly 4 along the longitudinal support frame 3 to a suitable distance, tighten the nut, and the second contact member 20 will be in close contact with the side of the longitudinal support frame 3 to fix the suction cup assembly 4. (II) Positioning and Adsorption Stage The entire device is lowered so that the suction cup 25 contacts the surface of the device to be adsorbed. As the device continues to move downward, the suction cup 25 is deformed under pressure, and the suction cup rod 21 moves upward, compressing the spring 24. When the upper limit block 22 contacts the top of the first suction cup mounting bracket 17, the suction cup rod 21 stops moving. At this time, the spring 24 is in a compressed state, and its elastic force is transmitted to the suction cup 25 through the suction cup rod 21, so that the suction cup 25 is tightly attached to the surface of the device, and the air in the suction cup is expelled to form a negative pressure adsorption. (III) Stability Prevention Stage During equipment handling or operation, the engagement of the first locking member 9 and the locking hole 11 restricts the lateral displacement of the longitudinal support frame 3, and the friction and elastic cushioning of the first contact member 10 reduces loosening caused by vibration. The second locking member 19 ensures that the suction cup assembly 4 does not slide back and forth on the longitudinal support frame 3, and the second contact member 20 further enhances the connection stability. At the same time, the spring 24 continuously provides preload to compensate for the slight deformation of the suction cup 25 caused by long-term use or vibration, maintaining the negative pressure adsorption effect. The upper limit block 22 and the lower limit block 23 prevent the suction cup rod 21 from coming off or moving excessively downward, ensuring the structural safety of the suction cup assembly 4. When it is necessary to release the adsorption, the lifting device is raised, the spring 24 resets and pushes the suction cup rod 21 downward, the internal and external air pressure of the suction cup 25 is balanced, and the adsorption state is released.

[0039] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A suction cup positioning and anti-loosening device, comprising a mounting base plate (1), a transverse support frame (2), a longitudinal support frame (3), and a suction cup assembly (4). Its features are: The number of the transverse support frames (2) is two and they are distributed along the left and right directions, and the number of the longitudinal support frames (3) is several and they are distributed along the front and back directions; The bottom front and rear sides of the mounting base (1) are connected to the horizontal support frame (2) below. Several vertical support frames (3) are installed below the horizontal support frame (2) along the left and right direction. Several suction cup assemblies (4) are installed on the vertical support frame (3) along the front and rear direction. The suction cup assembly (4) includes a first suction cup mounting bracket (17), a second suction cup mounting bracket (18), a suction cup rod (21), and a suction cup (25). The first suction cup mounting bracket (17) and the second suction cup mounting bracket (18) are installed together with the inner longitudinal support frame (3). The suction cup rod (21) is installed in the first suction cup mounting bracket (17) in a vertical direction, and a suction cup (25) is installed at the bottom of the suction cup rod (21).

2. The suction cup positioning and anti-loosening device as described in claim 1, characterized in that, The mounting base plate (1) is connected to the first fixing plate (7) located below the transverse support frame (2) by several first connecting rods (6) on all four sides.

3. The suction cup positioning and anti-loosening device as described in claim 1, characterized in that, A locking base plate (12) is provided between the longitudinal support frame (3) and the transverse support frame (2). The locking base plate (12) is connected to the second fixing plate (16) located below the longitudinal support frame (3) through several second connecting rods (15). A locking side plate (8) is installed on at least one side of the locking base plate (12) in the front-back direction. Several locking holes (11) are evenly opened on the transverse support frame (2) in the left-right direction. The first locking member (9) installed on the locking side plate (8) can be connected to the locking holes (11).

4. The suction cup positioning and anti-loosening device as described in claim 3, characterized in that, A first contact (10) is also installed on the locking side plate (8) on one side of the first locking member (9), and the first contact (10) can contact the inner transverse support frame (2).

5. The suction cup positioning and anti-loosening device as described in claim 3, characterized in that, A guide rail (13) distributed along the left and right direction is installed at the bottom of the transverse support frame (2), and a slider (14) connected to the guide rail (13) is installed on the locking base plate (12).

6. The suction cup positioning and anti-loosening device as described in claim 1, characterized in that, The top and bottom of the first suction cup mounting bracket (17) and the second suction cup mounting bracket (18) are locked together by the second locking member (19).

7. The suction cup positioning and anti-loosening device as described in claim 6, characterized in that, A second contact (20) is also installed on the second suction cup mounting bracket (18) between the two second locking members (19), and the second contact (20) can contact the inner longitudinal support frame (3).

8. The suction cup positioning and anti-loosening device as described in claim 1, characterized in that, An upper limit block (22) is installed on the side of the suction cup rod (21) above the first suction cup mounting bracket (17), and a lower limit block (23) is installed on the side of the suction cup rod (21) below the first suction cup mounting bracket (17).

9. A suction cup positioning and anti-loosening device as described in claim 8, characterized in that, A spring (24) is installed on the suction cup rod (21) located below the first suction cup mounting bracket (17) and between the lower limit block (23).

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