A station migration type tooling

Abstract

The application relates to a work station migration type tool, which comprises a left table, the bottom of the left table is provided with a table shaft plate for rotating the left table, a rectangular left transverse plate is installed on the right side of the left table, a rectangular right transverse plate is installed on the right end of the left transverse plate, a rectangular sliding groove is arranged in the left transverse plate and the right transverse plate, a rectangular sliding channel is arranged on the left transverse plate and the right transverse plate close to the upper end of the sliding groove, a side channel is arranged on the left transverse plate close to the side end wall of the right transverse plate and perpendicular to the sliding channel, a side groove is arranged on the left transverse plate close to the side end wall of the right transverse plate and perpendicular to the sliding groove, and a clamping groove is arranged on the right side of the left transverse plate close to the side end wall of the sliding groove. The work station migration type tool has the beneficial effect that the positions of the clamping components on the whole structure are controllable and adjustable, the machining work station can be migrated, the migration mode can be horizontal migration, or the migration mode can be vertical rotation, so that the whole stroke can be vertically switched.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tooling, in particular to a work station migration type tooling. BACKGROUND

[0002] Tooling, for clamping material workpieces, after positioning the material, processing, tooling will be configured to clamp the workpiece, for clamping material, clamping piece is set on the plate, for supporting clamping piece, clamping piece and the plate position is single, unable to rotate side shift to clamping piece and the plate, resulting in clamping piece clamping material after the work station is fixed, clamping piece and material difficult to horizontal and change the stroke after vertical movement, resulting in the work station is single, when the processing equipment is poor, the flexibility of the processing is poor.

[0003] The conventional tooling structure is simple, the plate of the tooling is placed on the table body, used for supporting the clamping piece, the clamping piece and the table body position is single, unable to rotate side shift to clamping piece and the plate, resulting in clamping piece clamping material after the work station is fixed, clamping piece and material difficult to horizontal and change the stroke after vertical movement, resulting in the work station is single, when the processing equipment is poor, the flexibility of the processing is poor. SUMMARY

[0004] The present application aims to provide a work station migration type tooling to solve the problems of the conventional tooling structure being simple, the plate of the tooling being placed on the table body, used for supporting the clamping piece, the clamping piece and the table body position being single, unable to rotate side shift to clamping piece and the plate, resulting in clamping piece clamping material after the work station being fixed, clamping piece and material difficult to horizontal and change the stroke after vertical movement, resulting in the work station being single, when the processing equipment being poor, the flexibility of the processing being poor.

[0005] To achieve the above object, the present application provides the following technical scheme: a work station migration type tooling, comprising a left table, a table shaft plate for rotating the left table is arranged at the bottom of the left table, a rectangular left transverse plate is installed at the right side of the left table, a rectangular right transverse plate is installed at the right end of the left transverse plate, a rectangular sliding groove is arranged in the left transverse plate and the right transverse plate, a rectangular sliding channel is arranged at the upper end of the left transverse plate and the right transverse plate close to the sliding groove, a side channel is arranged at the vertical sliding groove of the side wall of the left transverse plate close to the right transverse plate, a side slot is arranged at the vertical sliding groove of the side wall of the left transverse plate close to the right transverse plate, a clamping groove is arranged at the side wall of the left transverse plate close to the sliding groove, a side buckle opening is arranged at the side wall of the left transverse plate close to the side slot, a clamping assembly is arranged in the clamping groove, the clamping groove and the side buckle opening are matched with the shape structure of the clamping buckle, forming a clamping connection, so that the left transverse plate and the right transverse plate are horizontally connected or vertically connected, a disc-shaped sliding block is arranged in the sliding groove, a cylindrical sliding column is arranged at the upper end of the sliding block and movably connected with the sliding channel, and the clamping assembly is installed at the upper end of the sliding column.

[0006] Preferably, a straight buckle is fixed to the right end of the right transverse plate, a right table is installed on the right side of the right transverse plate, a straight buckle opening is formed in the left end wall of the right table for clamping the straight buckle, and a right screw is arranged in the right end wall of the right transverse plate.

[0007] Preferably, the caliber of the slide and the side channel is the same, and the caliber of the slide groove and the side groove is the same, so that the slide block and the slide column can change the stroke vertically at the side groove and the side channel.

[0008] Preferably, the left table and the left transverse plate are fixedly connected, and the right transverse plate and the left transverse plate are clamped through buckles and clamping grooves to form horizontal butt joint, so that the slide block and the slide column can move horizontally in the whole stroke.

[0009] Preferably, the right transverse plate and the left transverse plate are clamped through buckles and side buckle openings to form vertical butt joint, so that the stroke of the slide block and the slide column on the left transverse plate and the right transverse plate can be changed vertically through the side channel and the side groove.

[0010] Preferably, the clamping assembly comprises a rectangular top block fixedly connected to the top of the slide column, a rectangular fixed block fixed to the side end of the top block, and a screw arranged in the middle of the fixed block for limiting the top block.

[0011] Preferably, the clamping assembly further comprises a concave-shaped clamping plate fixedly connected to the upper end of the limiting top block, a disc-shaped reference table fixedly connected to the center end wall of the concave-shaped clamping plate for placing materials, and limiting screws arranged in the opposite top end of the side wall of the clamping plate for screwing the materials.

[0012] Preferably, the clamping assembly further comprises a side groove opening formed in the side wall of the clamping plate, a connecting block fixedly arranged at the end wall of the side groove opening, a rotating shaft arranged at the end wall of the connecting block, a rectangular fixed piece arranged at the end away from the connecting block of the rotating shaft, a limiting screw arranged in the end wall of the connecting block close to the rotating shaft for limiting the rotating shaft, and a side limiting screw arranged in the side end wall of the fixed piece away from the rotating shaft for limiting the materials.

[0013] Preferably, the connecting block, the rotating shaft, the fixed piece and the side limiting screw are provided with two groups, each group is provided with two, the rotating shaft rotates, the fixed piece rotates, and expands along the two sides of the side wall of the clamping plate.

[0014] Compared with the prior art, the beneficial effects of the present application are as follows:

[0015] The position of the clamping assembly on the whole structure of the present application is controllable and adjustable, the processing station can be migrated, and the migration mode can be horizontal migration or vertical rotation, so that the whole stroke can be vertically switched.

[0016] The rotating shaft at the connecting block of the application rotates the fixed piece to the side end of the clamping plate, the side set screw at the end wall of the fixed piece is screwed, the material is limited from the material side end, the material is conveniently fixed in multiple nodes, the positioning mode is more abundant, and the positioning is more flexible, and the limiting screw is tightened to position the rotated fixed piece, and the application is more stable.

[0017] The right cross plate and the left cross plate are connected by buckles and edge buckle openings, vertically connected, the sliding block and the sliding column are moved into the edge channel and the edge groove, vertically turned, and then moved into the sliding groove and the sliding channel of the right cross plate, so that the sliding block and the sliding column slide after vertical turning, the clamping assembly also vertically turns and moves, the position of the clamping assembly is vertically moved, and the work station is vertically adjusted, so that the work station switching range is larger and the mode is more abundant.

[0018] The caliber of the sliding channel and the edge channel is the same, the caliber of the sliding groove and the edge groove is the same, the straight buckle and the right table vertically change the stroke at the edge groove and the edge channel, the left table and the left cross plate are fixedly connected, the right cross plate and the left cross plate are connected by buckles and clamping grooves, horizontally connected, and the sliding block and the sliding column horizontally move in the whole stroke. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of a work station migration type tooling of the application;

[0020] Figure 2 It is a front view structural schematic view of a left table, a left cross plate, a right cross plate and a right table of a work station migration type tooling of the application;

[0021] Figure 3 It is a side view structural schematic view of a clamping plate of a work station migration type tooling of the application;

[0022] Figure 4 It is a local structural schematic view of a connecting block and a rotating shaft of a clamping plate of a work station migration type tooling of the application;

[0023] Figure 5 It is a local structural schematic view of a connecting block and a rotating shaft of a clamping plate of a work station migration type tooling of the application; Figure 1 It is an enlarged structural schematic view of A in the middle.

[0024] In the figure: 1, left table; 2, table shaft plate; 3, left cross plate; 4, right cross plate; 5, sliding groove; 6, sliding channel; 7, edge channel; 8, buckle; 9, clamping groove; 10, edge buckle opening; 11, straight buckle; 12, right table; 13, straight buckle opening; 14, right screw; 15, sliding block; 16, sliding column; 17, top block; 18, fixed block; 19, screw; 20, clamping plate; 21, reference table; 22, edge groove; 23, limiting screw; 24, side groove opening; 25, connecting block; 26, rotating shaft; 27, limiting screw; 28, fixed piece; 29, side set screw. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application.

[0026] In the description of the present application, unless otherwise specified, the meaning of “a plurality of” is two or more; the orientations or positional relationships indicated by the terms “upper”, “lower”, “left”, “right”, “inner”, “outer”, “front end”, “rear end”, “head”, “tail” and the like are based on the orientations or positional relationships shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms “first”, “second”, “third” and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms “connected” and “connected” should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] Please refer to Figures 1-5 The present application provides a technical solution: a work station migration tool, comprising a left table 1, the bottom of the left table 1 is provided with a table shaft plate 2 for rotating the left table 1, a rectangular left horizontal plate 3 is installed on the right side of the left table 1, a rectangular right horizontal plate 4 is installed on the right end of the left horizontal plate 3, a straight buckle 11 is fixed on the right end of the right horizontal plate 4, a right table 12 is installed on the right side of the right horizontal plate 4, a straight buckle opening 13 for clamping the straight buckle 11 is formed on the left side end wall of the right table 12, and a right screw 14 is arranged through the right end wall of the right horizontal plate 4. After the straight buckle 11 and the straight buckle opening 13 are clamped and connected, the right horizontal plate 4 and the right table 12 can be detachably connected together. After disassembly, the table shaft plate 2 is rotated to rotate the left table 1, the left horizontal plate 3 and the connected right horizontal plate 4, so that the orientation of the left horizontal plate 3 and the right horizontal plate 4 is switched, which is more convenient and flexible to control. After adjustment, the straight buckle 11 and the straight buckle opening 13 are clamped to connect the right horizontal plate 4 and the right table 12 together to form an integral whole, and then the right screw 14 is tightened to connect the right table 12 with the support surface supported by the right table 12, so as to limit and position the entire left table 1, the left horizontal plate 3 and the connected right horizontal plate 4, facilitating control and positioning treatment.

[0029] The left transverse plate 3 and the right transverse plate 4 are both provided with a rectangular chute 5, and the left transverse plate 3 and the right transverse plate 4 are both provided with a rectangular slide 6 near the upper end of the chute 5. The left transverse plate 3 is provided with a side channel 7 perpendicular to the slide 6 near the side wall of the right transverse plate 4. The left transverse plate 3 is provided with a side slot 22 perpendicular to the chute 5 near the side wall of the right transverse plate 4. The left transverse plate 3 is provided with a clamping groove 9 near the side wall of the right transverse plate 4. The left transverse plate 3 is provided with a side buckle opening 10 near the side wall of the side slot 22. The clamping groove 9 is provided with a clamping buckle 8 fixedly connected with the right transverse plate 4. The clamping groove 9 and the side buckle opening 10 are matched with the shape of the clamping buckle 8 to form a clamping connection, so that the left transverse plate 3 and the right transverse plate 4 are horizontally connected or vertically connected. The chute 5 is provided with a disc-shaped sliding block 15. The sliding block 15 is provided with a cylindrical sliding column 16 movably connected with the slide 6. The sliding column 16 is provided with a clamping assembly. The slide 6 and the side channel 7 have the same caliber, and the chute 5 and the side slot 22 have the same caliber, so that the sliding block 15 and the sliding column 16 can change the stroke vertically in the side slot 22 and the side channel 7. The left table 1 and the left transverse plate 3 are fixedly connected, and the right transverse plate 4 and the left transverse plate 3 are clamped by the clamping buckle 8 and the clamping groove 9 to form a horizontal connection, so that the sliding block 15 and the sliding column 16 move horizontally in the whole stroke.

[0030] The right transverse plate 4 and the left transverse plate 3 are clamped by the clamping buckle 8 and the clamping groove 9 to form a vertical connection, so that the stroke of the sliding block 15 and the sliding column 16 on the left transverse plate 3 and the right transverse plate 4 is changed vertically through the side channel 7 and the side slot 22. The sliding block 15 and the sliding column 16 are both rectangular. The sliding block 15 is used to slide in the connected chute 5 and side slot 22. The sliding column 16 is used to slide in the connected side channel 7 and slide 6. When the sliding block 15 and the sliding column 16 need to be simply horizontally moved, the right transverse plate 4 and the left transverse plate 3 are clamped by the clamping buckle 8 and the clamping groove 9 to form a horizontal connection. The side channel 7 and the chute 5 on the right transverse plate 4 are connected with the side channel 7 and the chute 5 on the left transverse plate 3, and form a horizontal shape, so that the sliding block 15 and the sliding column 16 slide horizontally. The clamping assembly also slides horizontally to achieve the purpose of horizontally moving the position of the clamping assembly and horizontally adjusting the work station. When the moving stroke of the sliding block 15 and the sliding column 16 needs to be vertically switched, the right transverse plate 4 and the left transverse plate 3 are clamped by the clamping buckle 8 and the clamping groove 10 to form a vertical connection, so that the stroke of the sliding block 15 and the sliding column 16 on the left transverse plate 3 and the right transverse plate 4 is changed vertically through the side channel 7 and the side slot 22. After the sliding block 15 and the sliding column 16 move into the side channel 7 and the side slot 22, they form a vertical turning, and then move into the chute 5 and the slide 6 of the right transverse plate 4. The sliding block 15 and the sliding column 16 slide after turning vertically. The clamping assembly also turns vertically to achieve the purpose of vertically moving the position of the clamping assembly and vertically adjusting the work station. The work station switching range is larger and the method is more diverse.

[0031] The clamping assembly comprises a rectangular top block 17 fixedly connected to the top of the slide post 16, a rectangular fixed block 18 fixedly connected to the side end of the top block 17, and a screw 19 passing through the middle of the fixed block 18 for limiting the top block 17. The screw 19 at the limiting position of the top block 17 is screwed to limit and lock the top block 17. When the slide post 16 and the slide block 15 slide and displace, the position of the entire clamping assembly can be changed, so that the clamping assembly can move horizontally in the stroke, and can move after switching the orientation vertically. The moving mode is more flexible, the work station is more flexible to control, and the machining equipment is more adaptable.

[0032] The clamping assembly further comprises a concave-shaped clamping plate 20 fixedly connected to the upper end of the limiting top block 17, a disc-shaped reference table 21 for placing materials fixedly connected to the notch center end wall of the clamping plate 20, and a limiting screw 23 passing through the opposite side wall top end of the clamping plate 20 for screwing and positioning the materials. The clamping assembly further comprises a side slot 24 formed in the side wall of the clamping plate 20, a connecting block 25 fixedly connected to the end wall of the side slot 24, a rotating shaft 26 provided on the end wall of the connecting block 25, a rectangular fixed piece 28 installed on the side away from the connecting block 25 of the rotating shaft 26, a limiting screw 27 passing through the end wall of the connecting block 25 close to the rotating shaft 26 for limiting the rotating shaft 26, and a side positioning screw 29 passing through the side end wall of the fixed piece 28 away from the rotating shaft 26 for limiting the materials. The connecting block 25, the rotating shaft 26, the fixed piece 28, and the side positioning screw 29 are each provided with two groups, and each group is provided with two. The rotating shaft 26 rotates and rotates the fixed piece 28 to expand along the two sides of the side wall of the clamping plate 20. The materials are placed on the reference table 21, and then the limiting screw 23 is screwed to preliminarily and simply position the materials. Then, the rotating shaft 26 at the connecting block 25 is rotated to rotate the fixed piece 28 to the side end of the clamping plate 20. The side positioning screw 29 at the end wall of the fixed piece 28 is screwed to limit the materials from the side end, so as to conveniently and firmly position the materials at multiple nodes. The positioning mode is more flexible, and the positioning is more flexible. The limiting screw 27 is tightened to position the rotated fixed piece 28, so that the use is more stable.

[0033] In summary, the work station migration tool is used,

[0034] The materials are placed on the reference table 21 at the clamping plate 20. The limiting screw 23 is screwed to simply limit and position the materials at both ends. Then, the rotating shaft 26 at the side slot 22 is rotated to rotate the fixed piece 28 to expand the fixed piece 28 laterally. The limiting screw 27 is tightened to limit the rotating shaft 26 and the fixed piece 28. Then, the side positioning screw 29 is screwed to position the materials. When the side positioning screw 29 expands laterally, the position of the side positioning screw 29 is flexibly controllable. The side positioning screw 29 cooperates with the limiting screw 23 to position and limit the materials at multiple nodes.

[0035] At this time, the right transverse plate 4 and the left transverse plate 3 can be connected through the buckle 8 and the clamping groove 9 to form horizontal butt joint, and the edge channel 7 and the sliding groove 5 on the right transverse plate 4 will be communicated with the edge channel 7 and the sliding groove 5 on the left transverse plate 3 to form horizontal shape, so as to provide horizontal sliding displacement for the sliding block 15 and the sliding column 16, and the sliding block 15 and the sliding column 16 slide along the sliding groove 5 and the sliding channel 6 respectively, so that the whole clamping assembly is laterally displaced to achieve the purpose of horizontal migration of the processing station.

[0036] The right transverse plate 4 and the left transverse plate 3 are connected through the buckle 8 and the edge buckle 10 to form vertical butt joint, so that the stroke of the sliding block 15 and the sliding column 16 on the left transverse plate 3 and the right transverse plate 4 is changed vertically through the edge channel 7 and the edge groove 22, and after the sliding block 15 and the sliding column 16 move into the edge channel 7 and the edge groove 22, the vertical turning is formed, and then the sliding block 15 and the sliding column 16 move into the sliding groove 5 and the sliding channel 6 of the right transverse plate 4 to provide vertical turning sliding displacement for the sliding block 15 and the sliding column 16, so that the clamping assembly is also vertically turned and displaced, thereby achieving the purpose of vertical migration of the clamping assembly and vertical adjustment of the station, and the range of station switching is larger and the mode is more abundant during use.

[0037] The screw 19 at the fixed block 18 is tightened to lock and position the clamping plate 20 after migration and adjustment of the station.

[0038] The straight buckle 13 and the straight buckle 11 are detached to detach the right table 12 and the right transverse plate 4, the table shaft plate 2 at the bottom of the left table 1 is rotated to rotate the left table 1, the left transverse plate 3 and the right transverse plate 4, the orientation position of the left transverse plate 3 and the right transverse plate 4 is switched, so that the position of the left transverse plate 3 and the right transverse plate 4 is controllable and adjustable during use, and the left transverse plate 3 and the right transverse plate 4 are more flexible and convenient when cooperating with the processing equipment, after the position of the left transverse plate 3 and the right transverse plate 4 is adjusted and controlled, the straight buckle 13 and the straight buckle 11 are connected to connect the right table 12 and the right transverse plate 4 together, and then the right screw 14 is tightened to connect the right table 12 and the supporting surface together to form positioning and lock the right table 12.

[0039] The position of the clamping assembly on the whole structure is controllable and adjustable, the processing station can be migrated, and the migration mode can be horizontal migration or vertical turning, so that the whole stroke can be vertically switched.

[0040] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A workstation-shifting fixture, comprising a left platform (1), characterized in that: The bottom of the left platform (1) is provided with a platform axle plate (2) for rotating the left platform (1). A rectangular left horizontal plate (3) is installed on the right side of the left platform (1). A rectangular right horizontal plate (4) is installed on the right end of the left horizontal plate (3). A rectangular sliding groove (5) is provided inside the left horizontal plate (3) and the right horizontal plate (4). A rectangular slide rail (6) is provided near the upper end of the slide rail (5) of the left horizontal plate (3) and the right horizontal plate (4). A side rail (7) is provided in the vertical slide rail (6) near the right horizontal plate (4) of the left horizontal plate (3). A side groove (22) is provided in the vertical slide rail (5) near the right horizontal plate (4) of the left horizontal plate (3). A slot (9) is provided on the right side of the left horizontal plate (3) near the slide groove (5). A side buckle (10) is provided on the side of the left horizontal plate (3) near the side groove (22). A buckle (8) is provided in the slot (9) and fixedly connected to the right horizontal plate (4). The slot (9) and the side buckle (10) are matched with the shape and structure of the buckle (8) to form a snap-fit, so that the left horizontal plate (3) and the right horizontal plate (4) are horizontally or vertically connected. A disc-shaped slider (15) is provided in the slide groove (5). A cylindrical sliding column (16) is provided at the upper end of the slider (15) and is movably connected to the slide rail (6). A clamping component is installed at the upper end of the sliding column (16).

2. The workstation migration fixture according to claim 1, characterized in that: The right end of the right horizontal plate (4) is fixed with a straight buckle (11), and a right platform (12) is installed on the right side of the right horizontal plate (4). A straight buckle opening (13) for snapping the straight buckle (11) is opened on the left end wall of the right platform (12), and a right screw (14) is passed through the right end wall of the right horizontal plate (4).

3. The workstation migration fixture according to claim 1, characterized in that: The slide (6) and the side track (7) have the same diameter, and the slide groove (5) and the side groove (22) have the same diameter, so that the slider (15) and the slide column (16) can change their stroke vertically at the side groove (22) and the side track (7).

4. The workstation migration fixture according to claim 1, characterized in that: The left platform (1) and the left horizontal plate (3) are fixedly connected, and the right horizontal plate (4) and the left horizontal plate (3) are engaged by buckles (8) and slots (9) to form a horizontal connection, so that the slider (15) and the sliding column (16) can move horizontally throughout their entire stroke.

5. The workstation migration fixture according to claim 1, characterized in that: The right horizontal plate (4) and the left horizontal plate (3) are connected by buckles (8) and side buckles (10) to form a vertical connection, so that the stroke of the slider (15) and the sliding column (16) on the left horizontal plate (3) and the right horizontal plate (4) is changed vertically by the side channel (7) and the side groove (22).

6. The workstation migration fixture according to claim 1, characterized in that: The clamping assembly includes a rectangular top block (17) fixedly connected to the top of the slide (16), a rectangular solid block (18) fixed to the side of the top block (17), and a screw (19) for limiting the top block (17) through the middle of the solid block (18).

7. A workstation-moving fixture according to claim 6, characterized in that: The clamping assembly also includes a concave-shaped clamping plate (20) fixedly connected to the upper end of the limiting top block (17), a disc-shaped reference platform (21) for placing materials fixedly connected to the center end wall of the concave part of the clamping plate (20), and a limiting screw (23) for screwing and positioning materials that is inserted opposite to the top of the side wall of the clamping plate (20).

8. A workstation-moving fixture according to claim 6, characterized in that: The clamping assembly also includes a side slot (24) opened on the side wall of the clamping plate (20), a connecting block (25) fixed at the end wall of the side slot (24), a rotating shaft (26) set at the end wall of the connecting block (25), a rectangular fixed plate (28) installed on the rotating shaft (26) away from the connecting block (25), a limiting screw (27) for limiting the rotating shaft (26) passing through the end wall of the connecting block (25) near the rotating shaft (26), and a side fixing screw (29) for limiting the material passing through the side end wall of the fixed plate (28) away from the rotating shaft (26).

9. A workstation-moving fixture according to claim 8, characterized in that: The connecting block (25), rotating shaft (26), fixed plate (28), and side fixing screw (29) are all provided in two sets, with two in each set. When the rotating shaft (26) rotates, the fixed plate (28) is rotated and unfolds along both sides of the side wall of the clamping plate (20).

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