Internal supporting type square-head net grabbing manipulator

Abstract

The utility model provides an inner support type square head net grabbing manipulator which is characterized in that an oil cylinder seat is fixedly mounted at the top of a connecting seat, an oil cylinder connecting cover is fixedly mounted at the top of the oil cylinder seat through a first long bolt, an oil cylinder is fixedly mounted in the oil cylinder connecting cover and located at the top of the oil cylinder seat, and a sliding body is fixedly mounted at the top of the oil cylinder connecting cover; a push-and-pull sliding block is slidably installed in a cylindrical cavity of the sliding body, the center of the bottom end of the push-and-pull sliding block is fixedly connected with a piston rod of an oil cylinder through a connecting screw rod, a bottom stopping plug cover is fixedly installed at the bottom end of the push-and-pull sliding block through a set screw, and translation sliding blocks are slidably installed in T-shaped inclined grooves symmetrically formed in the push-and-pull sliding block. The outward-extending limiting plate of the translation sliding block penetrates through the rectangular groove of the sliding body at the same time, and the outward-extending limiting plate is matched with the limiting face on the sliding body after extending out. And the rectangular head structure can be well matched with the rectangular meshes, so that the problem of shaking caused by small contact area in the mesh grabbing process is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt drill jumbos, in particular to an inner support type square head net grabbing manipulator. Background Art

[0002] During the process of supporting a mine tunnel with a bolt drill jumbo, it is necessary to install a support mesh. Currently, during the specific installation process of the support mesh, the commonly used installation process is as follows: First, use a grabbing manipulator to grab the support mesh, and then use an adjustment mechanism to rotate and adjust the installation angle of the support mesh. After the support mesh is adjusted, use a top net mechanism to press the support mesh tightly against the inner wall of the top of the mine tunnel. Finally, perform the operation of driving bolts to support and fix the support mesh.

[0003] The above-mentioned installation process of the support mesh is relatively complex, resulting in a complex structure of the working mechanism of the existing bolt drill jumbo for installing the support mesh, and thus a low installation efficiency of the support mesh.

[0004] To solve the above problems, our company has developed and applied for a net grabbing manipulator and its usage method for a bolt drill jumbo, with the application number: CN202410282309.8. The application date is March 13, 2024. For details, please refer to Figure 1 and 2 , which includes a rotary oil cylinder (1). A jaw oil cylinder base (3) is fixedly installed on the rotary shaft of the rotary oil cylinder (1) through a transition connecting plate (2). A jaw housing (5) is fixedly installed on the jaw oil cylinder base (3). Inside the jaw housing (5) and at the top of the jaw oil cylinder base (3), a jaw oil cylinder (11) is fixedly installed; the end of the piston rod (1101) of the jaw oil cylinder (11) is fixedly installed with a double-sided wedge-shaped slider (9) through a bolt assembly (10); the two wedge surfaces of the double-sided wedge-shaped slider (9) respectively form a wedge surface sliding fit with the corresponding jaw sliders (6), and drive the two jaw sliders (6) to extend or retract synchronously through the double-sided wedge-shaped slider (9); the jaw sliders (6) form a sliding fit with the T-shaped holes (504) on the jaw housing (5); an oil plug (7) is fixedly installed at one end of the head of the jaw housing (5).

[0005] However, the problems existing in the specific use of the net hanging manipulator with the above specific structure are as follows:

[0006] (1) Since the jaw housing (5) used is cylindrical, after it extends into the rectangular mesh holes, it cannot fit well with the rectangular mesh holes, resulting in the mesh shaking during subsequent rotation and unstable grabbing.

[0007] (2) Since it mainly contacts and clamps the steel wire of the mesh through the card slots provided on the jaw sliders (6), the steel wire of the mesh is locally extruded and deformed, resulting in the deformation of the mesh holes.

[0008] (3) Since the double-sided wedge-shaped slider (9) is used to form a wedge-shaped fit with the clamping claw slider (6), the dovetail groove structure used therein has a large friction force during the pulling process, which causes it to be easily worn during long-term heavy-load operation, thereby causing the double-sided wedge-shaped slider (9) to be scrapped. Utility Model Content

[0009] In order to solve the current technical problems, the main purpose of the utility model is to provide an internally supported square-headed net-grabbing manipulator. This manipulator can cooperate well with the rectangular mesh by adopting a rectangular head structure, effectively avoiding the shaking problem caused by the small contact area during the mesh grabbing process; by adopting a resistance limit clamping method to replace the existing clamping method of the clamping claw, the deformation of the mesh steel wire is effectively avoided; by adopting a whole slider structure to replace the existing trapezoidal wedge block structure, the friction is effectively reduced and the service life is extended.

[0010] In order to realize the above-mentioned technical features, the purpose of the utility model is achieved as follows: an internally supported square-headed net-grabbing manipulator comprises a connecting seat, a cylinder seat is fixedly installed on the top of the connecting seat, a cylinder connecting cover is fixedly installed on the top of the cylinder seat by a first long bolt, a cylinder is fixedly installed inside the cylinder connecting cover and on the top of the cylinder seat, a sliding body is fixedly installed on the top of the cylinder connecting cover, a push-pull slider is slidably installed on the cylindrical cavity of the sliding body, the bottom end center of the push-pull slider is fixedly connected to the piston rod of the cylinder by a connecting screw, a bottom stop cover is fixedly installed on the bottom end of the push-pull slider by a fixing screw, a translation slider is slidably installed inside the symmetrically arranged T-shaped inclined grooves on the push-pull slider, and the outward limiting plate of the translation slider passes through the rectangular groove of the sliding body at the same time. After the outward limiting plate is extended, it cooperates with the limiting surface on the sliding body to form a limiting slot.

[0011] A first center hole is processed in the center of the connecting seat, a first groove is processed on the upper surface where the first center hole is located, evenly arranged first through holes are processed on the stepped surface where the first groove is located, a first bolt hole is processed on the top periphery of the first groove, and the first bolt hole cooperates with the first long bolt.

[0012] A central boss is arranged at the center of the oil cylinder seat, and oil cylinder mounting holes are evenly processed on the central boss. A first flange is arranged at the periphery of the central boss, and second through holes are evenly processed on the first flange, and the second through holes are used to pass the first long bolt.

[0013] The oil cylinder connection cover comprises a central tube, a second flange is arranged at the top of the central tube, a third flange is arranged at the top of the central tube, flange holes are evenly processed on the second flange and the third flange, and a plurality of oil pipe through holes are arranged on the side wall of the central tube.

[0014] A cylindrical cavity is processed at the center of the sliding body, and a first oil filling hole is symmetrically processed at the location of the cylindrical cavity. A rectangular clamping block is arranged at one end of the head of the sliding body, and a penetrating rectangular groove is processed on the rectangular clamping block, which is connected with the cylindrical cavity. A transverse oil passage is processed on the rectangular clamping block, and the transverse oil passage is connected with the axial oil hole. The axial oil hole penetrates the central part of the rectangular clamping block, and the end of the axial oil hole located on the outer side is blocked by a blocking block; a second bolt hole is arranged at the bottom end of the sliding body, and the second bolt hole cooperates with the second long bolt to fix the oil cylinder connecting cover to the sliding body.

[0015] The push-pull slider includes a cylindrical slider body, on which T-shaped bevel grooves are symmetrically processed, a second groove is processed at the bottom end of the cylindrical slider body, a connecting bolt hole matching with the connecting screw is processed at the center of the end face where the second groove is located, and a plurality of third bolt holes matching with the set screws are processed around the periphery of the connecting bolt hole.

[0016] The connecting screw comprises a first screw for connecting with the end of the piston rod of the oil cylinder, and a second screw for connecting with the push-pull slider is arranged at the top of the first screw.

[0017] The translation slider includes an outwardly extending limit plate, a central vertical plate is arranged on one side of the bottom end of the outwardly extending limit plate, and limit skirts are symmetrically arranged on both sides of the central vertical plate. The T-shaped column formed by the central vertical plate and the limit skirts forms a sliding fit with the T-shaped inclined groove; the inner side edge of the end of the central vertical plate is provided with a chamfer.

[0018] A second center hole is processed at the center of the bottom stop plugging cover, and a plurality of stepped holes are evenly processed at the periphery of the bottom stop plugging cover, and the stepped holes are used to pass the set screws.

[0019] The utility model has the following beneficial effects:

[0020] 1. The utility model adopts a rectangular head structure to cooperate well with the rectangular mesh, effectively avoiding the shaking problem caused by the small contact area during the mesh grabbing process; adopts the resistance limit clamping method to replace the existing clamping method of the clamping claw, effectively avoiding the deformation of the mesh steel wire; adopts the whole slider structure to replace the existing trapezoidal wedge structure, effectively reducing the friction and extending the service life.

[0021] 2. The above-mentioned oil cylinder seat facilitates reliable fixing and installation of the oil cylinder, and ensures that the oil cylinder seat is reliably fixed on the connecting seat.

[0022] 3. The above-mentioned oil cylinder connection cover can realize a reliable connection between the connection seat and the sliding body.

[0023] 4. The sliding body mentioned above can be used to slide and install the translation slider, thereby ensuring that the mesh can be clamped by extending or retracting the translation slider.

[0024] 5. The clamping and limiting of the mesh can be achieved by pushing and pulling the slider described above.

[0025] 6. The connecting screw rod described above can be used to achieve a reliable connection between the piston rod of the oil cylinder and the push-pull slider, thereby ensuring that the telescopic movement of the push-pull slider can be driven by the oil cylinder, and then driving the corresponding translation slider to close or loosen.

[0026] 7. After the extended limit plate extends, the translation slider described above ensures that the extended limit plate can extend out of the sliding body, and then the mesh is clamped and positioned on the limit surface by the extended limit plate, thereby achieving the clamping of the mesh. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0028] Figure 1 It is the overall structure diagram of the existing mesh-grabbing manipulator of our company from the first perspective.

[0029] Figure 2 It is the overall structure diagram of the existing mesh-grabbing manipulator of our company from the second perspective.

[0030] Figure 3 It is the front view of the mesh-grabbing manipulator of the present utility model.

[0031] Figure 4 It is the top view of the mesh-grabbing manipulator of the present utility model.

[0032] Figure 5 It is the Figure 3 A-A view of the mesh-grabbing manipulator in the present utility model.

[0033] Figure 6 It is the left view of the mesh-grabbing manipulator of the present utility model.

[0034] Figure 7 It is the Figure 6 B-B view of the mesh-grabbing manipulator in the present utility model.

[0035] Figure 8 It is the three-dimensional view of the mesh-grabbing manipulator of the present utility model.

[0036] Figure 9 It is the top view of the connecting seat of the present utility model.

[0037] Figure 10 It is Figure 9 L-L view of the connection in the present utility model.

[0038] Figure 11 It is the three-dimensional view of the connecting seat of the present utility model.

[0039] Figure 12It is the front view of the connecting seat of the present utility model.

[0040] Figure 13 It is the top view of the connecting seat of the present utility model.

[0041] Figure 14 It is the 3D view of the connecting seat of the present utility model.

[0042] Figure 15 It is the 3D view of the oil cylinder connecting cover of the present utility model.

[0043] Figure 16 It is the front view of the sliding body of the present utility model.

[0044] Figure 17 It is the present utility model Figure 16 G-G view of the sliding body.

[0045] Figure 18 It is the left view of the sliding body of the present utility model.

[0046] Figure 19 It is the present utility model Figure 18 F-F view of the sliding body.

[0047] Figure 20 It is the top view of the sliding body of the present utility model.

[0048] Figure 21 It is the present utility model Figure 20 H-H view of the sliding body.

[0049] Figure 22 It is the first perspective 3D view of the sliding body of the present utility model.

[0050] Figure 23 It is the second perspective 3D view of the sliding body of the present utility model.

[0051] Figure 24 It is the front view of the sliding body of the present utility model.

[0052] Figure 25 It is the 3D view of the sliding body of the present utility model.

[0053] Figure 26 It is the top view of the push-pull slider of the present utility model.

[0054] Figure 27 It is the present utility model Figure 26 C-C view of the push-pull slider.

[0055] Figure 28 It is the bottom view of the push-pull slider of the present utility model.

[0056] Figure 29 It is the 3D view of the push-pull slider of the present utility model.

[0057] Figure 30 It is the top view of the bottom plug cover of the present utility model.

[0058] Figure 31 It is the Figure 30 J-J view of the bottom plug cover in the present utility model.

[0059] Figure 32 It is the front view of the connecting screw rod of the present utility model.

[0060] Figure 33 It is the three-dimensional view of the connecting screw rod of the present utility model.

[0061] In the figure: connecting seat 1, oil cylinder seat 2, first long bolt 3, oil cylinder connecting cover 4, second long bolt 5, sliding body 6, translation slider 7, push-pull slider 8, set screw 9, bottom plug cover 10, connecting screw rod 11, oil cylinder 12;

[0062] First bolt hole 101, first groove 102, first through hole 103, first center hole 104;

[0063] First flange 201, oil cylinder mounting hole 202, second through hole 203, center boss 204;

[0064] Third flange 401, center cylinder 402, second flange 403, oil pipe through hole 404;

[0065] Cylindrical cavity 601, rectangular groove 602, transverse oil passage 603, axial oil hole 604, rectangular clamping block 605, first oil injection hole 606, limiting surface 607;

[0066] Limiting skirt 701, center vertical plate 702, guide fillet 703, chamfer 704, extended limiting plate 705;

[0067] T-shaped inclined groove 801, connecting bolt hole 802, second groove 803, third bolt hole 804, cylindrical slider body 805;

[0068] Step hole 1001, second center hole 1002. Specific embodiments

[0069] The following further describes the embodiments of the present utility model with reference to the accompanying drawings.

[0070] Embodiment 1:

[0071] Refer to Figure 3-33The inner-supported square-head net-grabbing manipulator comprises a connecting seat 1, a cylinder seat 2 is fixedly installed on the top of the connecting seat 1, a cylinder connecting cover 4 is fixedly installed on the top of the cylinder seat 2 through a first long bolt 3, a cylinder 12 is fixedly installed inside the cylinder connecting cover 4 and located on the top of the cylinder seat 2, a sliding body 6 is fixedly installed on the top of the cylinder connecting cover 4, a push-pull slider 8 is slidably installed on the cylindrical cavity 601 of the sliding body 6, the bottom end center of the push-pull slider 8 is fixedly connected to the piston rod of the cylinder 12 through a connecting screw 11, a bottom stop cover 10 is fixedly installed on the bottom end of the push-pull slider 8 through a set screw 9, a translation slider 7 is slidably installed inside the symmetrically arranged T-shaped inclined groove 801 on the push-pull slider 8, and the outwardly extending limit plate 705 of the translation slider 7 passes through the rectangular groove 602 of the sliding body 6 at the same time, and the outwardly extending limit plate 705 cooperates with the limit surface 607 on the sliding body 6 after being extended to form a limit card groove 13. This robot adopts a rectangular head structure that can cooperate well with the rectangular mesh, effectively avoiding the shaking problem caused by the small contact area during the mesh grabbing process; by adopting the resistance limit clamping method to replace the existing claw clamping method, the deformation of the mesh steel wire is effectively avoided; by adopting the whole slider structure to replace the existing trapezoidal wedge block structure, the friction is effectively reduced and the service life is extended.

[0072] Furthermore, the center of the connecting seat 1 is processed with a first center hole 104, the upper surface of the part where the first center hole 104 is located is processed with a first groove 102, the stepped surface where the first groove 102 is located is processed with uniformly arranged first through holes 103, and the top periphery of the first groove 102 is processed with a first bolt hole 101, and the first bolt hole 101 is matched with the first long bolt 3. By adopting the above-mentioned connecting seat 1, it is convenient to cooperate with the propulsion beam of the anchor platform in the future, and then drive the entire net grabbing manipulator to move through the propulsion beam. In the specific installation process, the connecting seat 1 is matched with the rotating cylinder at the end of the propulsion beam by the bolt passing through the first through hole 103.

[0073] Furthermore, a central boss 204 is provided at the center of the oil cylinder seat 2, and oil cylinder mounting holes 202 are evenly processed on the central boss 204. A first flange 201 is provided at the periphery of the central boss 204, and second through holes 203 are evenly processed on the first flange 201. The second through holes 203 are used to pass the first long bolts 3. The oil cylinder seat 2 described above facilitates reliable fixing and installation of the oil cylinder 12, and ensures that the oil cylinder seat 2 is reliably fixed to the connecting seat 1.

[0074] Furthermore, the oil cylinder connecting cover 4 includes a central cylinder 402. A second flange 403 is provided at the top end of the central cylinder 402, and a third flange 401 is also provided at the top end of the central cylinder 402. Flange holes are evenly machined on both the second flange 403 and the third flange 401. A plurality of oil pipe through holes 404 are provided on the side wall of the central cylinder 402. Through the above-mentioned oil cylinder connecting cover 4, the oil cylinder 12 inside it can be effectively protected, thereby ensuring its safety during the operation process. Through the above-mentioned oil cylinder connecting cover 4, a reliable connection between the connecting seat 1 and the sliding body 6 can be achieved.

[0075] Furthermore, a cylindrical cavity 601 is machined in the center of the sliding body 6. First oil injection holes 606 are symmetrically machined at the position where the cylindrical cavity 601 is located. A rectangular clamping block 605 is provided at one end of the head of the sliding body 6. A through rectangular groove 602 is machined on the rectangular clamping block 605. The rectangular groove 602 communicates with the cylindrical cavity 601. A transverse oil passage 603 is machined on the rectangular clamping block 605. The transverse oil passage 603 communicates with an axial oil hole 604. The axial oil hole 604 penetrates through the central part of the rectangular clamping block 605. The end of the axial oil hole 604 on the outer side is blocked by a plugging block 608. A second bolt hole 609 is provided at the bottom end of the sliding body 6. The second bolt hole 609 cooperates with the second long bolt 5 and fixedly connects the oil cylinder connecting cover 4 and the sliding body 6. Through the above-mentioned sliding body 6, the translation slider 7 can be slidably installed, thereby ensuring that the mesh is clamped by the extension or retraction of the translation slider 7.

[0076] Moreover, through the above-mentioned first oil injection holes 606, transverse oil passage 603 and axial oil hole 604, lubricating oil can be provided for the sliding of the translation slider 7 and the push-pull slider 8 during the working process. Thereby ensuring the reliability of the sliding and extending its service life.

[0077] Moreover, through the above-mentioned rectangular clamping block 605 being of a rectangular structure, it can cooperate with the rectangular mesh holes, ensuring the fitting accuracy of the mesh holes, and thereby realizing the reliable clamping of the mesh and preventing the shaking during its rotation.

[0078] Furthermore, the push-pull slider 8 includes a cylindrical slider body 805. T-shaped inclined grooves 801 are symmetrically machined on the cylindrical slider body 805. A second groove 803 is machined at the bottom end of the cylindrical slider body 805. A connecting bolt hole 802 that cooperates with the connecting screw 11 is machined at the center of the end face where the second groove 803 is located. A plurality of third bolt holes 804 that cooperate with the set screws 9 are machined around the connecting bolt hole 802. Through the above-mentioned push-pull slider 8, the clamping and limiting of the mesh can be achieved. Moreover, through the above-mentioned T-shaped inclined grooves 801, during the movement of the push-pull slider 8, a sliding fit is formed with the T-shaped column of the translation slider 7, thereby realizing wedge drive for driving the closing or loosening of the translation slider 7.

[0079] Furthermore, the connecting screw rod 11 includes a first screw rod 1101 for mating and connecting with the end of the piston rod of the oil cylinder 12, and a second screw rod 1102 is provided at the top of the first screw rod 1101 for mating and connecting with the push-pull slider 8. Through the above-mentioned connecting screw rod 11, a reliable connection between the piston rod of the oil cylinder 12 and the push-pull slider 8 can be achieved, thereby ensuring that the telescopic movement of the push-pull slider 8 can be driven by the oil cylinder 12, and further driving the closing or loosening of the corresponding translation slider 7.

[0080] Furthermore, the translation slider 7 includes an outward extension limit plate 705. One side of the bottom end of the outward extension limit plate 705 is provided with a central vertical plate 702. Limiting skirt edges 701 are symmetrically arranged on both sides of the central vertical plate 702. The T-shaped column formed by the central vertical plate 702 and the limiting skirt edges 701 is in sliding fit with the T-shaped inclined groove 801; a chamfer 704 is provided on the inner side edge of the end of the central vertical plate 702, and a rounded corner 703 is provided at the end of the limiting skirt edge 701. Through the above-mentioned translation slider 7, it is ensured that after the outward extension limit plate 705 extends out, it can extend out of the sliding body 6, and then the mesh sheet is clamped and positioned on the limiting surface 607 through the outward extension limit plate 705, thereby realizing the clamping of the mesh sheet. Furthermore, the edge shape of the mesh sheet is avoided, and the limiting area is increased, ensuring the reliability of the clamping limit.

[0081] Moreover, through the above-mentioned chamfer 704, it is convenient to prevent damage to the mesh wires during the process of clamping and limiting the mesh sheet, and the clamping efficiency is improved.

[0082] Furthermore, a second central hole 1002 is machined at the center of the bottom stop cover 10, and a plurality of stepped holes 1001 are uniformly machined on the periphery of the bottom stop cover 10. The stepped holes 1001 are used for passing through the set screws 9. Through the above-mentioned bottom stop cover 10, it is convenient to seal the bottom of the push-pull slider 8, thereby ensuring the long-term sliding fit between the translation slider 7 and the push-pull slider 8.

[0083] Embodiment 2:

[0084] A method for using an inner support type square head net-grabbing manipulator, the method is implemented by using the inner support type square head net-grabbing manipulator, and includes the following steps:

[0085] Step 1: Installation of the net-grabbing manipulator:

[0086] Fix the net-grabbing manipulator on the propulsion beam of the bolt platform through the connecting seat 1;

[0087] S2, Picking up the mesh sheet:

[0088] Control the propulsion beam through the bolt platform, and drive the net-grabbing manipulator to move to the position where the mesh sheet is stored. At this time, ensure that the two translation sliders 7 retract inside the sliding body 6, and insert the head of the sliding body 6 into the mesh holes of the mesh sheet;

[0089] S3, Gripping of the mesh:

[0090] After the sliding body 6 is inserted in place, the oil cylinder 12 is started. The push-pull slider 8 is driven by the oil cylinder 12, and the two translation sliders 7 are driven to extend by the push-pull slider 8. Then, after the two translation sliders 7 expand synchronously, the mesh is clamped in the card slot 13;

[0091] S4, Lifting of the mesh:

[0092] After the mesh is gripped, the propulsion beam of the anchor rod platform is controlled, and then the mesh-gripping manipulator is moved to the mesh installation position;

[0093] S5, Rotation adjustment of the mesh:

[0094] When the installation angle position of the mesh needs to be adjusted, the rotation oil cylinder on the propulsion beam is started. The entire mesh-gripping manipulator is driven to rotate by the rotation oil cylinder, and then the corresponding mesh is driven to rotate by the sliding body 6 to achieve angle adjustment;

[0095] S6, Fixing of the mesh:

[0096] After the angle adjustment of the mesh is completed, the push-pull slider 8 is driven by the oil cylinder 12, and the two translation sliders 7 are driven by the push-pull slider 8. Then, after the two translation sliders 7 retract synchronously, the mesh is released, and the anchor rod is driven into the mine tunnel by the anchor rod trolley, and then the mesh is fixed in the mine tunnel;

[0097] S7, Reset of the mesh-gripping manipulator;

[0098] After the fixation of the previous mesh is completed, S2 - S6 are repeated to finally complete the installation of all meshes.

Claims

1. Internally supported square head net grabbing manipulator, characterized in that: The invention comprises a connecting seat (1), a cylinder seat (2) is fixedly mounted on the top of the connecting seat (1), a cylinder connecting cover (4) is fixedly mounted on the top of the cylinder seat (2) via a first long bolt (3), a cylinder (12) is fixedly mounted inside the cylinder connecting cover (4) and located on the top of the cylinder seat (2), a sliding body (6) is fixedly mounted on the top of the cylinder connecting cover (4), a push-pull slider (8) is slidably mounted on the cylindrical cavity (601) of the sliding body (6), and the bottom center of the push-pull slider (8) is connected via a connecting screw (11 ) is fixedly connected to the piston rod of the oil cylinder (12); a bottom stop cover (10) is fixedly installed on the bottom end of the push-pull slider (8) by means of a set screw (9); a translation slider (7) is slidably installed inside the symmetrically arranged T-shaped inclined grooves (801) on the push-pull slider (8); an outwardly extending limit plate (705) of the translation slider (7) simultaneously passes through the rectangular groove (602) of the sliding body (6); after the outwardly extending limit plate (705) is extended, it cooperates with the limit surface (607) on the sliding body (6) to form a limit slot (13).

2. According to claim 1, the inner support type square head net grabbing manipulator is characterized in that: A first center hole (104) is machined at the center of the connection seat (1), a first groove (102) is machined on the upper surface of the portion where the first center hole (104) is located, evenly arranged first through holes (103) are machined on the stepped surface where the first groove (102) is located, and a first bolt hole (101) is machined on the periphery of the top of the first groove (102), the first bolt hole (101) being matched with the first long bolt (3).

3. According to claim 1, the inner support type square head net grabbing manipulator is characterized in that: A central boss (204) is provided at the center of the oil cylinder seat (2), and oil cylinder mounting holes (202) are evenly processed on the central boss (204). A first flange (201) is provided on the periphery of the central boss (204), and second through holes (203) are evenly processed on the first flange (201), and the second through holes (203) are used to pass the first long bolts (3).

4. The inner-supported square-head net-grabbing manipulator according to claim 1 is characterized in that: The oil cylinder connection cover (4) comprises a central tube (402), a second flange (403) is arranged at the top end of the central tube (402), a third flange (401) is arranged at the top end of the central tube (402), flange holes are evenly processed on the second flange (403) and the third flange (401), and a plurality of oil pipe through holes (404) are arranged on the side wall of the central tube (402).

5. According to claim 1, the inner support type square head net grabbing manipulator is characterized in that: A cylindrical cavity (601) is machined at the center of the sliding body (6), and a first oil injection hole (606) is symmetrically machined at the location of the cylindrical cavity (601). A rectangular clamping block (605) is arranged at one end of the head of the sliding body (6). A penetrating rectangular groove (602) is machined on the rectangular clamping block (605), and the rectangular groove (602) is connected to the cylindrical cavity (601). A transverse oil passage (603) is machined on the rectangular clamping block (605), and the transverse oil passage (603) is connected to the axial oil hole (604). The axial oil hole (604) penetrates the center of the rectangular clamping block (605), and the end of the axial oil hole (604) located on the outer side is blocked by a blocking block (608). A second bolt hole (609) is arranged at the bottom end of the sliding body (6), and the second bolt hole (609) cooperates with the second long bolt (5) to fix the oil cylinder connection cover (4) and the sliding body (6) together.

6. The inner-supported square-head net-grabbing manipulator according to claim 1 is characterized in that: The push-pull slider (8) comprises a cylindrical slider body (805), the cylindrical slider body (805) is symmetrically processed with T-shaped bevel grooves (801), the bottom end of the cylindrical slider body (805) is processed with a second groove (803), the center of the end surface where the second groove (803) is located is processed with a connecting bolt hole (802) that matches the connecting screw rod (11), and the periphery of the connecting bolt hole (802) is processed with a plurality of third bolt holes (804) that match the set screws (9).

7. The inner-supported square-head net-grabbing manipulator according to claim 1 is characterized in that: The connecting screw rod (11) comprises a first screw rod (1101) for being connected to and cooperating with the end of the piston rod of the oil cylinder (12); a second screw rod (1102) for being connected to and cooperating with the push-pull slider (8) is arranged at the top end of the first screw rod (1101).

8. The inner-supported square-head net-grabbing manipulator according to claim 1 is characterized in that: The translation slider (7) comprises an outwardly extending limit plate (705), a central vertical plate (702) is arranged on one side of the bottom end of the outwardly extending limit plate (705), and limit skirt edges (701) are symmetrically arranged on both sides of the central vertical plate (702), and a T-shaped column formed by the central vertical plate (702) and the limit skirt edges (701) is slidably matched with a T-shaped inclined groove (801); and a chamfer (704) is arranged on the inner side edge of the end of the central vertical plate (702).

9. The inner-supported square-head net-grabbing manipulator according to claim 1 is characterized in that: A second center hole (1002) is machined at the center of the bottom stop cover (10), and a plurality of stepped holes (1001) are evenly machined at the periphery of the bottom stop cover (10), wherein the stepped holes (1001) are used to pass the set screws (9).

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