Production jig of mechanical arm

Abstract

The utility model discloses a mechanical arm production jig which comprises a base, a sliding frame is arranged on the base, sliding blocks are arranged at the two ends of the interior of the sliding frame, a power structure is arranged at the outer end of the sliding frame, the sliding blocks are in sliding fit with the sliding frame under the action of the power structure, and clamping blocks are arranged at the upper ends of the sliding blocks. A plurality of sliding grooves are formed in the clamping block and evenly distributed in the clamping block, a clamping rod is arranged in each sliding groove in a sliding connection mode, a pressure spring is arranged between each clamping rod and the inner wall of the corresponding sliding groove, an adjusting groove is formed in one end of the base, and a sliding plate is arranged in the adjusting groove in a sliding connection mode. An adjusting groove is formed in the base, an adjusting handle is arranged at one end of the base, a first lead screw is arranged in the center of the adjusting handle, the first lead screw is rotationally connected with the adjusting groove and matched with the sliding plate, one set of sliding frames is fixed to the base, the other set of sliding frames is fixedly connected with the sliding plate, and the equipment is high in applicability and convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical arm production, and more specifically, to a production jig for a mechanical arm. Background Art

[0002] With the development of science and technology, the relevant technologies of robotic arms are becoming more and more perfect. In the field of automated production, the application of robotic arms is becoming more and more extensive. When producing and processing robotic arms, multiple operations need to be performed on the machine tool, and fixtures are needed for fixation.

[0003] When common fixtures are used to fix the robot arm, they are usually fixed by clamping two sets of clamping structures. Nowadays, common robot arms do not have a fixed style. Their appearance specifications and shapes are varied, and irregular surfaces are also common. Simple planar clamping structures are difficult to clamp stably when facing non-planar outer walls. Generally, clamping molds of corresponding mechanisms are prepared for clamping according to the actual needs of the robot arm in production. However, this method of use is not only troublesome when replacing the corresponding molds, but also requires frequent preparation and replacement of different molds as the use needs change, which requires a large investment. Moreover, on common fixtures, In order to prevent the robot arm from shaking when it is fixed, two sets of clamping and fixing structures are usually set up to fix the robot arm from two positions. However, the lengths of robot arms of different mechanisms are inconsistent. The fixed structure that cannot be adjusted cannot cope with robot arms of different lengths. Some robot arm structures are inherently curved, and ordinary fixtures are difficult to meet the use requirements in terms of applicability. In addition, when a large number of robot arms are produced, the processing mechanism is fixed. In order to ensure the stable processing quality of each robot arm, a positioning device is required. However, the positioning device is mostly fixed, which is inconvenient to use when facing different robot arms. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the problems existing in the prior art, the utility model provides a production jig of a robot arm to solve the technical problems mentioned in the background technology that the production jig has a simple structure and a poor fixing effect.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a production jig of a robot arm, comprising a base, a sliding frame is provided on the base, sliding blocks are provided at both ends of the sliding frame, a power structure is provided at the outer end of the sliding frame, the sliding block slides with the sliding frame under the action of the power structure, a clamping block is provided at the upper end of the sliding block, a sliding groove is provided on the clamping block, a plurality of sliding grooves are provided and are evenly distributed on the clamping block, and a clamping rod is slidably connected in each sliding groove, and a pressure spring is provided between the clamping rod and the inner wall of the sliding groove;

[0008] An adjustment groove is provided at one end of the base, a sliding plate is slidably connected in the adjustment groove, an adjustment handle is provided at one end of the base, a first screw rod is provided at the center of the adjustment handle, the first screw rod is rotatably connected to the adjustment groove and cooperates with the sliding plate, the sliding frame is provided with two groups, one group is fixed on the base, and the other group is fixedly connected to the sliding plate.

[0009] The utility model is further configured as follows: a positioning groove is provided at one end of the base, a positioning plate is provided in the positioning groove, the positioning plate is slidably matched with the positioning groove, a second screw rod is rotatably connected in the positioning groove, the second screw rod is matched with the positioning plate, a positioning handle is provided at one end of the base, and the second screw rod is connected to the positioning plate to position the robotic arm.

[0010] The utility model is further configured such that the power structure includes a driving motor and a driving screw, the driving screw is rotationally matched with the sliding frame and is threadedly matched with the sliding block, and the bolts at both ends of the driving screw are relatively arranged, the driving motor is arranged at one end of the sliding frame, and the output end of the driving motor is connected to the driving screw to provide power for clamping.

[0011] The utility model is further configured that a limit block is provided at the contact end of the clamping rod and the pressure spring, and a limit ring is provided at the outlet end of the sliding groove, and the limit block cooperates with the limit ring to ensure stable movement of the clamping rod.

[0012] The utility model is further configured such that a boosting block is provided in the sliding groove, the boosting block is arranged between the pressure spring and the inner wall of the sliding groove, and slidingly cooperates with the sliding groove, an adjusting bolt is provided at the outer end of the clamping block, the adjusting bolt passes through the clamping block and is rotatably connected to the boosting block, and the adjusting bolt cooperates with the clamping block thread to ensure the clamping effect of the supporting rod.

[0013] The utility model is further configured that a rubber ball is provided at the outer end of the clamping rod to protect the mechanical arm.

[0014] The utility model is further configured such that a support platform is provided on the base, and a protection pad is provided on the support platform to facilitate the processing of the robot arm.

[0015] The utility model is further configured that a mounting groove is provided on the base, a pressure cylinder is provided in the mounting groove, and the pressure cylinder cooperates with the support platform to facilitate adjustment of the processing height of the robot arm.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a production fixture for a robotic arm, which has the following

[0018] Beneficial effects:

[0019] 1. A moving structure is provided by setting a sliding frame and a sliding block, a driving motor and a driving screw provide power to control the movement of the sliding block, and a clamping structure is provided by setting a clamping block to move with the sliding block. When clamping a robotic arm, the clamping rod is contacted with the surface of the robotic arm through the cooperation of multiple sets of sliding grooves and clamping rods, and the robotic arm is clamped under the thrust provided by the pressure spring, and the sliding groove provides space for the clamping rod to be adjusted, so that different clamping rods slide in different degrees in the movable groove, cooperate with different surface structures on the robotic arm, and adapt to a variety of robotic arms with different specifications, sizes and irregular appearances.

[0020] 2. A more stable clamping and fixing is achieved by cooperating with two sets of clamping structures. The adjusting groove provides space, and one set of the clamping structures is installed through the sliding plate. The sliding plate is moved in space by cooperating with the adjusting handle and the first screw rod, so that the sliding plate drives the clamping structure to move, and the spacing between the two sets of clamping structures is adjusted to adapt to the fixation of robotic arms of different lengths.

[0021] 3. By setting the positioning groove to provide space, the second screw rod and the positioning handle are used to control the positioning plate to move in the positioning groove and contact the robotic arm to position the robotic arm, which is convenient for the subsequent placement of the robotic arm. The robotic arm will be straightened under the push of the clamping structures at both ends, thereby ensuring that the processing position of each robotic arm is stable, easy to operate, convenient for workers to use, and improving the efficiency of processing and production. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the front structure of a production fixture of a robotic arm in the utility model;

[0023] Figure 2 This is a schematic diagram of the matching structure of the base and the sliding frame in the utility model;

[0024] Figure 3 This is a schematic diagram of the base structure in the utility model;

[0025] Figure 4 This is a schematic diagram of the structure after the clamping block in the utility model is disassembled;

[0026] Figure 5This is a cross-sectional view of the matching structure between the interior of the clamping block and the clamping rod in the utility model.

[0027] In the figure: 1. base; 2. sliding frame; 3. sliding block; 4. power structure; 5. clamping block; 6. sliding groove; 7. clamping rod; 8. pressure spring; 9. adjusting groove; 10. sliding plate; 11. adjusting handle; 12. first screw rod; 13. positioning groove; 14. positioning plate; 15. second screw rod; 16. positioning handle; 17. driving motor; 18. driving screw rod; 19. limiting block; 20. limiting ring; 21. boosting block; 22. adjusting bolt; 23. rubber ball; 24. supporting platform; 25. protective pad; 26. mounting groove; 27. pressure cylinder. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0030] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0031] See also Figure 1-5 A production jig of a robot arm includes a base 1, a sliding frame 2 is provided on the base 1, sliding blocks 3 are provided at both ends of the sliding frame 2, a power structure 4 is provided at the outer end of the sliding frame 2, the sliding block 3 slides with the sliding frame 2 under the action of the power structure 4, a clamping block 5 is provided at the upper end of the sliding block 3, a sliding groove 6 is provided on the clamping block 5, a plurality of sliding grooves 6 are provided and are evenly distributed on the clamping block 5, and a clamping rod 7 is slidably connected in each sliding groove 6, and a pressure spring 8 is provided between the clamping rod 7 and the inner wall of the sliding groove 6;

[0032] An adjusting groove 9 is opened at one end of the base 1, and a sliding plate 10 is slidably connected in the adjusting groove 9. An adjusting handle 11 is provided at one end of the base 1, and a first screw rod 12 is provided at the center of the adjusting handle 11. The first screw rod 12 is rotatably connected to the adjusting groove 9 and cooperates with the sliding plate 10. The sliding frame 2 is provided with two groups, one of which is fixed on the base 1, and the other is fixedly connected to the sliding plate 10.

[0033] In this embodiment, the robotic arm to be processed is placed on the base 1 and supported by the base 1. When the robotic arm is clamped and fixed, the power provided by the power structure 4 is used to control the sliding blocks 3 at both ends to move inward along the sliding frame 2, driving the clamping block 5 to approach the middle robotic arm, so that the clamping rod 7 contacts the robotic arm, and the clamping block 5 continues to move toward the robotic arm, so that the clamping rod 7 squeezes the robotic arm. After the clamping rod 7 is subjected to force, it will move into the sliding groove 6 to a certain extent, and under the action of the pressure spring 8, the robotic arm is clamped. According to the shape of the surface of the robotic arm, the depth of the retraction of different clamping rods 7 into the sliding groove 6 will be different, so that the shape formed by multiple clamping rods 7 conforms to the surface of the robotic arm, so that the clamping structure can adapt to robotic arms with different shapes.

[0034] More specifically, when clamping and fixing the robotic arm, the first screw rod 12 is controlled by rotating the adjusting handle 11, so that the first screw rod 12 rotates and cooperates with the sliding plate 10 to drive the sliding plate 10 to move in the adjusting groove 9. The sliding frame 2 and the corresponding clamping structure on the sliding plate 10 will move together, while the position of the other set of sliding frames 2 and the corresponding clamping structure will remain fixed, and the distance between the two sets of clamping structures can be adjusted to meet the fixing requirements of robotic arms of different lengths.

[0035] See also Figure 1-3 As an implementation method for positioning the robotic arm: a positioning groove 13 is opened at one end of the base 1, a positioning plate 14 is arranged in the positioning groove 13, the positioning plate 14 is slidably matched with the positioning groove 13, a second screw rod 15 is rotatably connected in the positioning groove 13, the second screw rod 15 is matched with the positioning plate 14, a positioning handle 16 is provided at one end of the base 1, and the second screw rod 15 is connected to the positioning plate 14.

[0036] Specifically, after installing the first robotic arm, control the positioning handle 16 so that the positioning handle 16 drives the second screw rod 15 to rotate, and the second screw rod 15 cooperates with the Ding plate to drive the positioning plate 14 to move, so that the positioning plate 14 approaches the clamped robotic arm along the positioning groove 13, and the positioning plate 14 contacts the side end of the robotic arm, and the position of the robotic arm when it is placed is recorded. After completing the processing of the robotic arm, when processing the next robotic arm of the same specification, directly place the side end of the robotic arm against the positioning plate 14 to place it, so that the placement position of the robotic arm is consistent with the previous robotic arm, which is convenient for the positioning and placement of the robotic arm.

[0037] Please refer to Figure 1-3 As a further implementation of the power structure 4 mechanism: the power structure 4 includes a driving motor 17 and a driving screw 18, the driving screw 18 is rotationally matched with the sliding frame 2, and is threadedly matched with the sliding block 3, and the bolts at both ends of the driving screw 18 are arranged oppositely, the driving motor 17 is arranged at one end of the sliding frame 2, and the output end of the driving motor 17 is connected to the driving screw 18.

[0038] Specifically, during operation, the driving motor 17 is driven to control the driving screw 18 to rotate, and the rotating driving screw 18 cooperates with the sliding block 3 to drive the sliding block 3 to move, and the threads at both ends of the driving screw 18 are relatively arranged to facilitate driving the sliding blocks 3 at two points to slide inward or outward at the same time.

[0039] Please refer to Figure 5 As a further implementation of the clamping rod 7 mechanism: a limit block 19 is provided at the contact end of the clamping rod 7 and the pressure spring 8, a limit ring 20 is provided at the outlet end of the sliding groove 6, and the limit block 19 cooperates with the limit ring 20.

[0040] Specifically, when the clamping rod 7 moves in the sliding groove 6, it will be pushed by the pressure spring 8. When the clamping rod 7 moves toward the outside of the sliding groove 6, it will drive the limit block 19 to contact the limit ring 20. The limit ring 20 will prevent the limit block 19 from continuing to move, thereby preventing the clamping rod 7 from sliding out of the sliding groove 6.

[0041] Please refer to Figure 5 As a further implementation of the clamping rod 7: a boosting block 21 is provided in the sliding groove 6, the boosting block 21 is arranged between the pressure spring 8 and the inner wall of the sliding groove 6, and is slidably matched with the sliding groove 6, and an adjusting bolt 22 is provided at the outer end of the clamping block 5, the adjusting bolt 22 passes through the clamping block 5 and is rotatably connected to the boosting block 21, and the adjusting bolt 22 is threadedly matched with the clamping block 5.

[0042] Specifically, by rotating the adjusting bolt 22, the adjusting bolt 22 cooperates with the clamping block 5 and moves along the clamping block 5, pushing the boosting block 21 in the sliding groove 6 to move, so that the boosting block 21 pushes the pressure spring 8, increasing the thrust of the pressure spring 8 on the clamping rod 7.

[0043] Please refer to Figure 4 As a further implementation of the clamping rod 7: a rubber ball 23 is provided at the outer end of the clamping rod 7.

[0044] Specifically, the clamping rod 7 contacts the mechanical arm through the rubber ball 23, and the rubber ball 23 provides a buffering capability to protect the mechanical arm. The rubber ball 23 can also provide an anti-slip capability to further improve the stability of clamping.

[0045] Please refer to Figure 2 As a further implementation of the supporting mechanism: a supporting platform 24 is provided on the base 1 , and a protective pad 25 is provided on the supporting platform 24 .

[0046] Specifically, the robot arm is placed on the support platform 24, and the robot arm is propped up by the support platform 24 to keep the robot arm stable. The protection pad 25 is in contact with the robot arm to ensure the safety and stability of the robot arm.

[0047] Please refer to Figure 3As a further implementation of the supporting mechanism: a mounting groove 26 is provided on the base 1 , a pressure cylinder 27 is provided in the mounting groove 26 , and the pressure cylinder 27 cooperates with the supporting platform 24 .

[0048] Specifically, by controlling the operation of the pressure rod, the pressure rod supports the support platform 24 and drives the support platform to rise when necessary, so that the robot arm is at a suitable working height. The mounting groove 26 provides an installation space for the pressure cylinder 27. On the one hand, it is convenient for the pressure cylinder 27 to be connected to the external control equipment. On the other hand, it prevents the pressure rod from occupying the operating space on the base 1.

[0049] In summary, when the overall device is in use or running:

[0050] When the jig equipment is used to produce the robot arm, the various devices on the jig are connected to the external power supply equipment and control equipment, and then the robot arm to be processed is placed on the support table 24, and the pressure rod is controlled to work so that the pressure rod drives the support table to rise, so that the robot arm is at a suitable working height, and the robot arm is propped up by the support table 24 to keep the robot arm stable. The support table 24 contacts the robot arm through the protection pad 25, which can protect the surface of the robot arm and ensure the stability of the robot arm. In addition, the installation slot 26 provides installation space for the pressure cylinder 27, which is convenient for connecting the pressure cylinder 27 with the external control equipment on the one hand, and on the other hand, it avoids the pressure rod from occupying the operating space on the base 1. , adjust the position of the robotic arm so that the robotic arm meets the processing requirements, and then adjust the position of the sliding plate 10 according to the length of the robotic arm, and control the first screw rod 12 by rotating the adjusting handle 11 to rotate the first screw rod 12 and cooperate with the sliding plate 10 to drive the sliding plate 10 to move in the adjusting slot 9. The sliding frame 2 and the corresponding clamping structure on the sliding plate 10 will move together, while the position of the other set of sliding frames 2 and the corresponding clamping structure remains fixed, and the spacing between the two sets of clamping structures is adjusted to meet the fixed length requirements of the robotic arm. If the robotic arm has a bending structure, the position of the movable plate can also be adjusted first and then the robotic arm can be placed, and the robotic arm can be fixed at different positions on the same axis by two sets of clamping mechanisms.

[0051] When the mechanical arm is fixed by the clamping block 5, the power structure 4 is controlled to provide power to make the driving motor 17 work, and the driving screw rod 18 is controlled to rotate. The rotating driving screw rod 18 cooperates with the sliding block 3 to drive the sliding block 3 to move, and the threads at both ends of the driving screw rod 18 are relatively arranged, which is convenient for driving the sliding blocks 3 at both ends to slide inward or outward at the same time. Under the power provided by the driving screw rod 18, the sliding blocks 3 at both ends are controlled to move inward along the sliding frame 2, driving the clamping block 5 to approach the middle mechanical arm, so that the clamping rod 7 contacts the mechanical arm, and the clamping block 5 continues to move toward the mechanical arm, so that the clamping rod 7 squeezes the mechanical arm, and the clamping rod 7 contacts the mechanical arm through the rubber ball 23, and the rubber ball 23 provides a buffering ability to protect the mechanical arm, and the rubber ball 23 can also provide anti-slip ability, further improving the stability of clamping, and after the clamping rod 7 is subjected to force, it will move into the sliding groove 6 to a certain extent. According to the shape of the surface of the mechanical arm, different clamping rods 7 are retracted into the sliding groove 6 The depth will be different, so that multiple clamping rods 7 can cooperate to form a shape that adapts to the surface of the mechanical arm, and under the thrust of the pressure spring 8, the clamping rod 7 will clamp the mechanical arm, so that the clamping structure can adapt to the mechanical arm with irregular or different shapes. In addition, if the outer surface of the mechanical arm is too irregular, resulting in some clamping rods 7 being unable to tighten the mechanical arm, the adjusting bolt 22 can be rotated to make the adjusting bolt 22 cooperate with the clamping block 5 and move along the clamping block 5 to push the boosting block 21 in the sliding groove 6 to move, so that the boosting block 21 pushes the pressure spring 8, increasing the thrust of the pressure spring 8 on the clamping rod 7. In addition, when the clamping rod 7 is restricted, it will be subject to the thrust of the pressure spring 8, causing the clamping rod 7 to move toward the outside of the sliding groove 6, and the clamping rod 7 will drive the limit block 19 to move, and through the limit block 19 and the limit ring 20 cooperation, after the limit block 19 contacts the limit ring 20, the limit ring 20 will prevent the limit block 19 from continuing to move, thereby preventing the clamping rod 7 from sliding out of the sliding groove 6.

[0052] In addition, when processing a large number of robotic arms, after installing the first robotic arm, control the positioning handle 16 so that the positioning handle 16 drives the second screw rod 15 to rotate, and the second screw rod 15 cooperates with the Ding plate to drive the positioning plate 14 to move, so that the positioning plate 14 approaches the clamped robotic arm along the positioning groove 13, so that the positioning plate 14 contacts the side end of the robotic arm, and the position of the robotic arm when it is placed is recorded. After completing the processing of the robotic arm, when processing the next robotic arm of the same specification, directly place the side end of the robotic arm against the positioning plate 14 to place it, so that the placement position of the robotic arm is consistent with the previous robotic arm, which is convenient for the positioning and placement of the robotic arm.

[0053] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A production jig for a robotic arm, comprising a base (1), characterized in that: The base (1) is provided with a sliding frame (2), and sliding blocks (3) are provided at both ends of the sliding frame (2). A power structure (4) is provided at the outer end of the sliding frame (2). The sliding block (3) is slidably matched with the sliding frame (2) under the action of the power structure (4). A clamping block (5) is provided at the upper end of the sliding block (3), and a sliding groove (6) is provided on the clamping block (5). There are a plurality of sliding grooves (6) that are evenly distributed on the clamping block (5), and a clamping rod (7) is slidably connected in each sliding groove (6). A pressure spring (8) is provided between the clamping rod (7) and the inner wall of the sliding groove (6); An adjusting groove (9) is provided at one end of the base (1), a sliding plate (10) is slidably connected in the adjusting groove (9), an adjusting handle (11) is provided at one end of the base (1), a first screw rod (12) is provided at the center of the adjusting handle (11), the first screw rod (12) is rotatably connected to the adjusting groove (9) and cooperates with the sliding plate (10), and the sliding frame (2) is provided with two groups, one of which is fixed on the base (1) and the other is fixedly connected to the sliding plate (10).

2. The production jig of a robot arm according to claim 1, characterized in that: A positioning groove (13) is provided at one end of the base (1), a positioning plate (14) is provided in the positioning groove (13), the positioning plate (14) and the positioning groove (13) are slidably matched, a second screw rod (15) is rotatably connected in the positioning groove (13), the second screw rod (15) and the positioning plate (14) are matched, a positioning handle (16) is provided at one end of the base (1), and the second screw rod (15) is connected to the positioning plate (14).

3. The production jig of a robot arm according to claim 1, characterized in that: The power structure (4) comprises a driving motor (17) and a driving screw (18), wherein the driving screw (18) is rotationally matched with the sliding frame (2) and is threadedly matched with the sliding block (3), and bolts at both ends of the driving screw (18) are arranged opposite to each other, the driving motor (17) is arranged at one end of the sliding frame (2), and the output end of the driving motor (17) is connected to the driving screw (18).

4. The production jig of a robot arm according to claim 1, characterized in that: A limit block (19) is provided at the contact end between the clamping rod (7) and the pressure spring (8), and a limit ring (20) is provided at the outlet end of the sliding groove (6), and the limit block (19) cooperates with the limit ring (20).

5. A production jig for a robotic arm according to claim 4, characterized in that: A boosting block (21) is provided in the sliding groove (6), and the boosting block (21) is arranged between the pressure spring (8) and the inner wall of the sliding groove (6), and is slidably matched with the sliding groove (6). An adjusting bolt (22) is provided at the outer end of the clamping block (5), and the adjusting bolt (22) passes through the clamping block (5) and is rotatably connected to the boosting block (21), and the adjusting bolt (22) is threadedly matched with the clamping block (5).

6. A production jig for a robotic arm according to claim 4, characterized in that: The outer end of the clamping rod (7) is provided with a rubber ball (23).

7. The production jig of a robot arm according to claim 1, characterized in that: A support platform (24) is provided on the base (1), and a protection pad (25) is provided on the support platform (24).

8. The production jig of a robot arm according to claim 7, characterized in that: The base (1) is provided with a mounting groove (26), a pressure cylinder (27) is provided in the mounting groove (26), and the pressure cylinder (27) cooperates with the support platform (24).

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