Carrying equipment for aluminum plate machining

Abstract

The utility model discloses carrying equipment for aluminum plate processing, which comprises a base, two driving seats which are symmetrically distributed are slidably mounted at the top of the base, a screw rod is rotatably mounted at the top of each driving seat, two limiting seats which are symmetrically distributed are arranged on the outer wall of each screw rod, and supporting seats are arranged at the bottoms of the two limiting seats; the supporting seat is installed on the outer wall of the lead screw in a threaded mode and slides on the upper end face of the driving seat, and the two limiting seats can oppositely move on the upper end face of the driving seat through rotation of the lead screw. According to the carrying equipment disclosed by the invention, empty grooves can be separated among the stacked aluminum plates, and the aluminum plates are grabbed from the empty grooves and are loaded and unloaded, so that the trouble that the aluminum plates can be grabbed and carried only when parts of the aluminum plates are pulled to the outside due to the fact that no gaps exist among the aluminum plates is avoided; and the situation that the surface of the aluminum plate is scratched is avoided, the quality of the aluminum plate is guaranteed, time and labor are saved, and the carrying efficiency of the aluminum plate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum plate handling equipment, in particular to a handling equipment for aluminum plate processing. Background Art

[0002] Aluminum plate is a metal material made of pure aluminum or aluminum alloy through pressure processing (rolling, extrusion, stretching, etc.). It refers to a rectangular plate made by rolling aluminum ingots. It can be divided into pure aluminum plate, alloy aluminum plate, thin aluminum plate, medium and thick aluminum plate, patterned aluminum plate, etc. It has excellent physical and chemical properties, such as light weight, high strength, corrosion resistance, easy processing and forming, etc. It is widely used in many fields. However, in the process of processing aluminum plates, a transport truck is needed to stack the aluminum plates on the transport truck and transport them to different processes for processing.

[0003] However, since the aluminum plates are stacked on the transport vehicle, there is no gap between the aluminum plates. When taking and placing the aluminum plates on the transport vehicle, the aluminum plate located above needs to be pulled on the surface of the aluminum plate located below, and part of the aluminum plate located above needs to be pulled to the outside of the aluminum plate located below in order to transport the aluminum plates. This not only easily scratches the surface of the aluminum plates, but also increases the labor intensity of the staff and reduces the transportation efficiency of the aluminum plates. Therefore, those skilled in the art provide a transportation device for aluminum plate processing to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to provide a handling device for aluminum plate processing to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A handling device for aluminum plate processing comprises: a base, two symmetrically distributed driving seats are slidably mounted on the top of the base, and a screw rod is rotatably mounted on the top of the driving seat, and the outer wall of the screw rod is provided with two symmetrically distributed limiting seats, and the bottoms of the two limiting seats are provided with supporting seats, the supporting seats are threadedly mounted on the outer wall of the screw rod and slide on the upper end surface of the driving seat, and the two limiting seats can be displaced toward each other on the upper end surface of the driving seat by the rotation of the screw rod, and a plurality of limiting support plates are slidably mounted on the inner side of the limiting seat, and the limiting support plates include a slide plate and a bearing plate, wherein the slide plate slides The sliding plate is movably installed on the side wall of the limit seat, the bearing plate is installed on the end of the slide plate located outside the limit seat, and side plates are arranged on the upper and lower ends of the bearing plate away from the aluminum plate, and grooves are provided on the upper end surface and the lower end surface of the bearing plate on one side of the side plate, and the four corners of the aluminum plate are respectively engaged in the inside of the groove on the upper end surface of the bearing plate located on the same horizontal plane, and a buffer is arranged inside the groove on the lower end surface of the bearing plate, the buffer is pressed tightly against the upper end surface of the aluminum plate located below, and the side plate located on the lower end surface of the bearing plate is pressed tightly against the top of the side plate on the upper end surface of the bearing plate located below.

[0007] Preferably, both ends of the driving seat extend to the outside of the base, and both ends of the driving seat located outside the base are provided with support plates, and first sliding grooves are provided on both sides of the base, and an annular limit plate is slidably installed inside the first sliding groove. A threaded rod is provided on the end surface of the annular limit plate, and one end of the threaded rod away from the annular limit plate extends to the outside of the base and is threadedly installed inside the support plate, and the width of the first sliding groove is greater than the thickness of the annular limit plate, and a through groove connected to the first sliding groove is provided on the side wall of the base, and the threaded rod extends to the outside of the base through the through groove and slides inside the through groove.

[0008] Preferably, a threaded hole is opened inside the support plate, the threaded rod is threadedly installed inside the threaded hole and extends to the outside of the support plate, and a limit nut is threadedly installed on one end of the threaded rod located outside the support plate, the limit nut is threadedly installed on the outer wall of the threaded rod and tightly attached to the side wall of the support plate, and the internal thread of the limit nut is opposite to the internal thread of the threaded hole.

[0009] Preferably, sliders are provided at both ends of the bottom of the support seat, and a second sliding groove is opened at the upper end of the driving seat at a position corresponding to the slider, and the slider is slidably installed inside the second sliding groove. In addition, thread grooves are opened inside the two support seats, and the support seats are threadedly installed on the outer wall of the screw rod through the thread grooves, and the internal threads of the two thread grooves are in opposite directions.

[0010] Preferably, a third sliding groove is provided on the inner side of the limiting seat, and one end of the sliding plate away from the bearing plate is slidably mounted inside the third sliding groove.

[0011] Preferably, there is a limiting clamping groove between the four limiting support plates located on the same horizontal plane, and the aluminum plate is installed between the four limiting seats through the limiting clamping groove.

[0012] Preferably, the buffer includes a sleeve and a sliding rod, wherein a cavity is opened inside the sleeve, one end of the sliding rod is slidably installed inside the cavity, and the other end passes through the sleeve and extends to the outside thereof, and an annular baffle is provided at the end of the sliding rod located inside the cavity for limiting its position, a buffer spring is provided between the end face of the annular baffle and the inside of the cavity and around the outside of the sliding rod, and a buffer rubber block is provided at the end of the sliding rod located outside the sleeve for contacting the aluminum plate, and the buffer rubber block is tightly attached to the upper end face of the aluminum plate.

[0013] Compared with the prior art, the advantages of the utility model are:

[0014] By arranging a driving seat and a limit seat on the base, when stacking the aluminum plates on the transport vehicle, the two driving seats can be slid first according to the length of the aluminum plates, the distance between the limit seats on the two driving seats can be adjusted, and then the screw rod can be turned to drive the two support seats installed thereon through the threaded grooves to move, so that the moving support seats can slide on the upper end surfaces of the driving seats, and drive the two limit seats installed on the two support seats to move toward each other, and the distance between the two limit seats on the driving seats can be adjusted so that the distance between the two limit seats can be adapted to the width of the aluminum plates, thereby completing the position adjustment of the limit support plates installed on the four limit seats, and the size of the limit clamping grooves between the four limit support plates located on the same horizontal plane can be adjusted according to the model of the aluminum plates, so that the limit clamping grooves can be adapted to the aluminum plates, thereby realizing the installation of aluminum plates of different models.

[0015] By setting the limit support plate, when the aluminum plate is installed between the four limit seats, the four limit support plates can be slid and installed on the inner sides of the four limit seats in turn, so that the limit support plates on the four limit seats are on the same horizontal plane, and then the aluminum plate is placed in the limit clamping groove between the four limit support plates, so that the four corners of the aluminum plate are respectively engaged in the grooves on the four limit support plates, and the side plates located on the upper ends of the limit support plates limit the aluminum plate to prevent the aluminum plate from slipping during the movement, and then repeat the above actions to stack each aluminum plate in turn through the limit support plates. Between the four limit seats, the side plate and the buffer located at the lower end surface of the limit support plate are in contact with the limit support plate and the aluminum plate below, so that empty slots can be separated between the stacked aluminum plates, and the aluminum plates can be grabbed from the empty slots and loaded and unloaded. This not only avoids the trouble of pulling part of the aluminum plate to the outside before grabbing the aluminum plate for transportation due to the lack of gaps between the aluminum plates, but also avoids scratches on the surface of the aluminum plate, thereby ensuring the quality of the aluminum plate, saving time and effort, and improving the transportation efficiency of the aluminum plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a three-dimensional schematic diagram of a handling device according to an embodiment of the utility model;

[0017] Figure 2 It is a three-dimensional schematic diagram of a driving seat and a limiting seat according to an embodiment of the utility model;

[0018] Figure 3 It is a schematic diagram of assembling an aluminum plate and four limit support plates according to an embodiment of the utility model;

[0019] Figure 4 It is a bottom schematic diagram of a position limiting support plate according to an embodiment of the utility model;

[0020] Figure 5 is a cross-sectional view of a buffer according to an embodiment of the utility model;

[0021] Figure 6 The figure is a schematic diagram of the connection between the annular limiting plate, the threaded rod and the base according to an embodiment of the utility model.

[0022] In the figure: 1. base; 101. first slide groove; 102. through groove; 11. annular limit plate; 12. threaded rod; 121. limit nut; 2. drive seat; 201. second slide groove; 21. screw rod; 22. support plate; 221. threaded hole; 3. limit seat; 301. third slide groove; 31. support seat; 311. threaded groove; 32. slider; 4. limit support plate; 41. slide plate; 42. bearing plate; 421. groove; 43. side plate; 5. buffer; 51. sleeve; 511. cavity; 52. slide rod; 53. buffer rubber block; 54. annular baffle; 55. buffer spring. DETAILED DESCRIPTION

[0023] In the description of the present utility model, it should be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more. In addition, the term "including" and any variation thereof are intended to cover non-exclusive inclusions.

[0024] Combination Figure 1 , Figure 2 and Figure 6 As shown, two symmetrically distributed drive seats 2 are slidably installed on the top of the base 1, and both ends of the drive seats 2 extend to the outside of the base 1, and both ends of the drive seats 2 are located outside the base 1. Support plates 22 are provided. First slide grooves 101 are opened on both sides of the base 1, and an annular limiting plate 11 is slidably installed inside the first slide groove 101. The end surface of the annular limiting plate 11 is provided with a threaded rod 12, and one end of the threaded rod 12 away from the annular limiting plate 11 extends to the outside of the base 1 and is threadedly installed on the support plate 22. Inside, the width of the first slide groove 101 is greater than the thickness of the annular limit plate 11, and a screw rod 21 is rotatably installed on the top of the driving seat 2, and the outer wall of the screw rod 21 is provided with two symmetrically distributed limit seats 3, and the bottom of the two limit seats 3 are provided with support seats 31, and the support seats 31 are threadedly installed on the outer wall of the screw rod 21 and slide on the upper end surface of the driving seat 2, and the two limit seats 3 can be displaced toward each other on the upper end surface of the driving seat 2 through the rotation of the screw rod 21, and a number of limit support plates 4 are slidably installed on the inner side of the limit seat 3.

[0025] In one embodiment, when adjusting the position of the driving seat 2, two driving seats 2 can be slid on the top of the base 1 according to the length of the aluminum plate to be installed, so that the support plates 22 at both ends of the driving seat 2 drive the threaded rod 12 installed thereon to move on both sides of the base 1, and then the threaded rod 12 is allowed to slide in the through groove 102 and drive the annular limiting plate 11 to slide in the first slide groove 101, and then the threaded rod 12 is twisted to move the threaded rod 12 in the threaded hole 221 toward the outside of the support plate 22, and pull the annular limiting plate 11 installed thereon to move in the first slide groove 101. 1 is laterally displaced, so that the annular limit plate 11 is closely attached to the inner wall of the first slide groove 101, thereby increasing the friction between the drive seat 2 and the base 1. Finally, the limit nut 121 on the threaded rod 12 is screwed to make the limit nut 121 closely attached to the side wall of the support plate 22, and the threaded rod 12 is tightened to prevent the threaded rod 12 from rotating. This avoids the situation in which the annular limit plate 11 shakes in the first slide groove 101 due to the rotation of the threaded rod 12 and fails to limit the position of the drive seat 2, thereby achieving the limitation of the drive seat 2 after the adjustment position and ensuring the stability of the drive seat 2.

[0026] In one embodiment, when adjusting the position of the limit seat 3, the screw rod 21 can be screwed on the top of the driving seat 2 to drive the two support seats 31 installed on the screw rod 21 through the threaded groove 311 to move, so that the support seat 31 can slide on the upper end surface of the driving seat 2 through the cooperation of the slider 32 and the second slide groove 201, and drive the two limit seats 3 connected to the two support seats 31 to move toward each other, so as to adjust the distance between the limit support plates 4 on the two limit seats 3, so that the distance between the limit support plates 4 on the two limit seats 3 is adapted to the width of the aluminum plate, which is suitable for limiting the aluminum plates of different widths.

[0027] Combination Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the limiting support plate 4 includes a slide plate 41 and a bearing plate 42, wherein the slide plate 41 is slidably mounted on the side wall of the limiting seat 3, the bearing plate 42 is mounted on one end of the slide plate 41 located outside the limiting seat 3, and the upper and lower ends of the bearing plate 42 are provided with side plates 43 on the side away from the aluminum plate, and the upper end surface and the lower end surface of the bearing plate 42 are located on the side of the side plate 43. A groove 421 is provided, and the four corners of the aluminum plate are respectively snap-fitted into the inside of the groove 421 on the upper end surface of the bearing plate 42 located on the same horizontal plane, and a buffer 5 is provided inside the groove 421 on the lower end surface of the bearing plate 42, and the buffer 5 is pressed tightly against the upper end surface of the aluminum plate located below, and the side plate 42 located at the lower end surface of the bearing plate 42 The buffer 5 is pressed against the top of the side plate 43 on the upper end surface of the bearing plate 42 located below. The buffer 5 includes a sleeve 51 and a slide bar 52, wherein a cavity 511 is provided inside the sleeve 51, one end of the slide bar 52 is slidably installed inside the cavity 511, and the other end passes through the sleeve 51 and extends to the outside thereof, and an annular baffle 54 for limiting the position of the slide bar 52 is provided at one end of the slide bar 52 located inside the cavity 511, a buffer spring 55 is provided between the end surface of the annular baffle 54 and the inside of the cavity 511 and around the outside of the slide bar 52, and a buffer rubber block 53 for contacting the aluminum plate is provided at one end of the slide bar 52 located outside the sleeve 51, and the buffer rubber block 53 is closely attached to the upper end surface of the aluminum plate.

[0028] In one embodiment, when installing the aluminum plate, the four limit support plates 4 can be slidably installed on the inner sides of the four limit seats 3 respectively through the cooperation of the slide plate 41 and the third slide groove 301, so that the limit support plates 4 on the four limit seats 3 are on the same horizontal plane, and then the aluminum plate is placed in the limit clamping groove between the four limit support plates 4, so that the four corners of the aluminum plate are respectively engaged in the grooves 421 on the four limit support plates 4, and the side plate 43 located on the upper end surface of the limit support plate 4 limits the aluminum plate to prevent the aluminum plate from sliding off during the movement, and then repeat the above actions, through the limit support plates 4 in turn. The plate 4 stacks the aluminum plates between the four limit seats 3, allowing the side plate 43 located at the lower end surface of the limit support plate 4 and the buffer 5 to contact the limit support plate 4 and the aluminum plate located below, so as to separate empty slots between the stacked aluminum plates, and grab the aluminum plates from the empty slots and load and unload the aluminum plates, which not only avoids the trouble of pulling part of the aluminum plate to the outside before grabbing the aluminum plate for transportation due to the lack of gaps between the aluminum plates, but also avoids the occurrence of scratches on the surface of the aluminum plate, thereby ensuring the quality of the aluminum plate, saving time and effort, and improving the transportation efficiency of the aluminum plate.

[0029] In one embodiment, when the limit support plate 4 is slidably installed on the inner side of the limit seat 3, the buffer rubber block 53 on the buffer 5 can be first allowed to contact the aluminum plate located below, and the buffer spring 55 can buffer the impact force of the limit support plate 4 sliding onto the aluminum plate, and then the side plate 43 located at the lower end surface of the limit support plate 4 can be allowed to contact the limit support plate 4 located below, thereby reducing the impact force on the limit support plate 4 and the aluminum plate located below, avoiding the deformation of the limit support plate 4 and the aluminum plate located below due to the large impact force on the limit support plate 4 and the aluminum plate located below, thereby protecting the limit support plate 4 and the aluminum plate located below, and the contact between the buffer rubber block 53 and the surface of the aluminum plate can also prevent the trouble of scratching the surface of the aluminum plate, thereby further ensuring the quality of the aluminum plate.

[0030] The working principle of the utility model is as follows: when the aluminum plate is transported, the two driving seats 2 can be slid on the top of the base 1 according to the length of the aluminum plate to be installed, the distance between the limit seats 3 on the two driving seats 2 can be adjusted, and then the screw rod 21 can be turned to drive the two support seats 31 installed on the screw rod 21 through the threaded groove 311 to move, so that the support seat 31 can slide on the upper end surface of the driving seat 2 through the cooperation of the slider 32 and the second slide groove 201, and drive the two limit seats 3 connected to the two support seats 31 to move toward each other, so as to adjust the distance between the limit support plates 4 on the two limit seats 3, so that the distance between the limit support plates 4 on the two limit seats 3 is adapted to the width of the aluminum plate, thereby completing the position adjustment of the limit support plates 4 installed on the four limit seats 3, and the size of the limit clamping groove between the four limit support plates 4 located on the same horizontal plane can be adjusted according to the model of the aluminum plate, so that the limit clamping groove is adapted to the aluminum plate, thereby realizing the installation of aluminum plates of different models, and finally, the four are moved by the cooperation of the slide plate 41 and the third slide groove 301. The limiting support plates 4 are slidably installed on the inner sides of the four limiting seats 3 respectively, so that the limiting support plates 4 on the four limiting seats 3 are on the same horizontal plane, and then the aluminum plate is placed in the limiting clamping grooves between the four limiting support plates 4, so that the four corners of the aluminum plate are respectively engaged in the grooves 421 on the four limiting support plates 4, and the side plates 43 located on the upper end faces of the limiting support plates 4 limit the aluminum plate to prevent the aluminum plate from sliding off during the movement, and then repeat the above actions, and stack each aluminum plate between the four limiting seats 3 in turn through the limiting support plates 4. By allowing the side plate 43 and the buffer 5 located at the lower end surface of the limit support plate 4 to contact the limit support plate 4 and the aluminum plate below, empty slots can be separated between the stacked aluminum plates, and the aluminum plates can be grabbed from the empty slots and loaded and unloaded. This not only avoids the trouble of pulling part of the aluminum plate to the outside before grabbing the aluminum plate for transportation due to the lack of gaps between the aluminum plates, but also avoids scratches on the surface of the aluminum plate, thereby ensuring the quality of the aluminum plate, saving time and effort, and improving the transportation efficiency of the aluminum plate.

[0031] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A handling device for aluminum plate processing, comprising: The base (1) is characterized in that two symmetrically distributed driving seats (2) are slidably mounted on the top of the base (1), and a screw rod (21) is rotatably mounted on the top of the driving seat (2), and the outer wall of the screw rod (21) is provided with two symmetrically distributed limiting seats (3), and the bottoms of the two limiting seats (3) are provided with support seats (31), and the support seats (31) are threadedly mounted on the outer wall of the screw rod (21) and slide on the upper end surface of the driving seat (2), and the two limiting seats (3) can be displaced toward each other on the upper end surface of the driving seat (2) through the rotation of the screw rod (21), and a plurality of limiting support plates (4) are slidably mounted on the inner side of the limiting seat (3), and the limiting support plates (4) include a slide plate (41) and a bearing plate (42), wherein the slide plate (41) is slidably mounted on the limiting seat The side wall of the sliding plate (3), the bearing plate (42) is installed at one end of the sliding plate (41) located outside the limiting seat (3), and the upper and lower ends of the bearing plate (42) are both provided with side plates (43) away from the aluminum plate, and the upper end surface and the lower end surface of the bearing plate (42) are both provided with grooves (421) on one side of the side plate (43), and the four corners of the aluminum plate are respectively engaged with the inside of the groove (421) on the upper end surface of the bearing plate (42) located on the same horizontal plane, and a buffer (5) is provided inside the groove (421) on the lower end surface of the bearing plate (42), and the buffer (5) is pressed tightly against the upper end surface of the aluminum plate located below, and the side plate (43) located at the lower end surface of the bearing plate (42) is pressed tightly against the top of the side plate (43) on the upper end surface of the bearing plate (42) located below.

2. The aluminum plate processing handling equipment according to claim 1, characterized in that: Both ends of the driving seat (2) extend to the outside of the base (1), and both ends of the driving seat (2) are provided with support plates (22) at the parts located outside the base (1). Both sides of the base (1) are provided with first sliding grooves (101), and an annular limiting plate (11) is slidably installed inside the first sliding groove (101). The end surface of the annular limiting plate (11) is provided with a threaded rod (12), and one end of the threaded rod (12) away from the annular limiting plate (11) extends to the outside of the base (1) and is threadedly installed inside the support plate (22), and the width of the first sliding groove (101) is greater than the thickness of the annular limiting plate (11), and the side wall of the base (1) is provided with a through groove (102) connected with the first sliding groove (101), and the threaded rod (12) extends to the outside of the base (1) through the through groove (102) and slides inside the through groove (102).

3. The aluminum plate processing handling equipment according to claim 2, characterized in that: A threaded hole (221) is provided inside the support plate (22), the threaded rod (12) is threadedly mounted inside the threaded hole (221) and extends to the outside of the support plate (22), and a limiting nut (121) is threadedly mounted on one end of the threaded rod (12) located outside the support plate (22), the limiting nut (121) is threadedly mounted on the outer wall of the threaded rod (12) and is tightly attached to the side wall of the support plate (22), and the internal thread of the limiting nut (121) is opposite to the internal thread of the threaded hole (221).

4. The aluminum plate processing handling equipment according to claim 1, characterized in that: Both ends of the bottom of the support seat (31) are provided with sliders (32), and a second slide groove (201) is provided at a position corresponding to the slider (32) at the upper end of the drive seat (2), and the slider (32) is slidably installed inside the second slide groove (201), and a thread groove (311) is provided inside the two support seats (31), and the support seats (31) are threadedly installed on the outer wall of the screw rod (21) through the thread groove (311), and the internal threads of the two thread grooves (311) are in opposite directions.

5. The aluminum plate processing handling equipment according to claim 1, characterized in that: A third sliding groove (301) is provided on the inner side of the limiting seat (3), and one end of the sliding plate (41) away from the bearing plate (42) is slidably mounted inside the third sliding groove (301).

6. The aluminum plate processing handling equipment according to claim 1, characterized in that: There is a limiting clamping groove between the four limiting support plates (4) located on the same horizontal plane, and the aluminum plate is installed between the four limiting seats (3) through the limiting clamping groove.

7. The aluminum plate processing handling equipment according to claim 1, characterized in that: The buffer (5) includes a sleeve (51) and a slide rod (52), wherein a cavity (511) is provided inside the sleeve (51), one end of the slide rod (52) is slidably installed inside the cavity (511), and the other end passes through the sleeve (51) and extends to the outside thereof, and an annular baffle (54) is provided at one end of the slide rod (52) located inside the cavity (511) for limiting its position, a buffer spring (55) is provided between the end surface of the annular baffle (54) and the inside of the cavity (511) and around the outside of the slide rod (52), and a buffer rubber block (53) for contacting the aluminum plate is provided at one end of the slide rod (52) located outside the sleeve (51), and the buffer rubber block (53) is tightly attached to the upper end surface of the aluminum plate.

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