Multi-point clamping jaw and cantilever clamping mechanism

Abstract

The utility model provides a multi-point clamping jaw and a cantilever clamping mechanism. The multi-point clamping jaw comprises a butt joint plate, a supporting plate and a plurality of clamping pieces. A strip-shaped butt-joint groove is formed in the face, facing the supporting plate, of the butt-joint plate, a sliding hole and a butt-joint hole are formed in the supporting plate, and one end of the sliding hole is open and located in the side face of the supporting plate; and the plurality of butt joint holes are communicated with the butt joint groove and the sliding hole. Each clamping piece comprises a sliding rod and a claw hook, one end of the sliding rod is slidably connected to the sliding hole, and the other end of the sliding rod is connected with the claw hook. The butt-joint hole and the sliding hole can be communicated through the strip-shaped butt-joint groove, after the butt-joint groove is connected with air source equipment, pressure change can be generated in the sliding hole, so that the sliding rod is controlled to move in the sliding hole, the sliding rod can drive the claw hook to move, simultaneous action of a plurality of clamping pieces is achieved, clamping stability is guaranteed, and reliability is high. The butt joint plate is attached to the supporting plate, the clamping piece is located on the side face of the supporting plate, the overall thickness is small, and the occupied space is small.

Description

Technical Field

[0001] The utility model relates to the field of chip processing equipment, in particular to a multi-point clamping claw and a cantilever clamping mechanism. Background Art

[0002] After the initial production of the chip is completed, it is set on the sheet. During the production process, the sheet needs to be clamped and transferred so that it can enter the next process. The sheet is long and needs to be clamped by multiple jaws from multiple positions to ensure stability during the movement. Multiple jaws need to act at the same time. In the prior art, a linkage mechanism is usually used to ensure that multiple jaws act at the same time. Due to the large distance between the multiple jaws, the linkage mechanism has a complex structure and poor linkage reliability, which is prone to failure and affects the operational stability. Utility Model Content

[0003] The utility model provides a multi-point clamping claw and a cantilever clamping mechanism, which can improve reliability and stability.

[0004] The utility model provides a multi-point clamping claw, comprising a docking plate, a supporting plate and a plurality of clamping members;

[0005] The docking plate is attached to the support plate, and a sealing structure is provided between the two; a strip-shaped docking groove is provided on one side of the docking plate facing the support plate, and the docking groove is used to connect to the air source equipment; the sealing structure is provided around the docking groove;

[0006] The support plate is provided with sliding holes and docking holes, wherein there are multiple sliding holes, which correspond to the clamping parts one by one; one end of the sliding hole is open and located at the side of the support plate; one end of the docking hole is open, which is located on the plate surface of the support plate and faces the docking groove; there are multiple docking holes, which are all connected with the docking groove; the other end of the docking hole is connected with the sliding hole.

[0007] Each of the clamping members comprises a sliding rod and a claw hook, one end of the sliding rod is slidably connected to the sliding hole, and the other end is connected to the claw hook; a sealing ring is arranged between the sliding rod and the sliding hole.

[0008] Wherein, the docking holes are connected with the sliding holes in a one-to-one correspondence.

[0009] The docking hole and the sliding hole are connected via a connecting hole, the diameters of both the docking hole and the sliding hole are larger than the diameter of the connecting hole, and the connecting hole and the sliding hole are connected via a conical surface.

[0010] Wherein, the docking groove includes a first sub-groove and a second sub-groove, the first sub-grooves are two parallel to each other, and the two ends of the second sub-groove are respectively connected to the middle positions of the two first sub-grooves in the length direction; a docking hole is provided on the docking plate, one end of the docking hole is connected to the second sub-groove, and the other end is located on the side of the docking plate away from the support plate and connected to the air source.

[0011] Wherein, a positioning groove is arranged on the peripheral surface of one end of the slide rod, and the sealing ring is fixed in the positioning groove.

[0012] The sealing ring is provided with an inverted ring, one end of which is connected to the sealing ring, and the other end of which extends obliquely in a direction away from the claw hook and close to the hole wall of the sliding hole, and abuts against the hole wall of the sliding hole.

[0013] Among them, two positioning flanges are provided at one end of the sliding rod, and the positioning flange is a ring-shaped flange arranged around the sliding rod. The two positioning flanges are arranged axially along the sliding rod, and the positioning groove is formed between the two positioning flanges; the peripheral surface of the positioning flange is gap-matched with the hole wall of the sliding hole.

[0014] Among them, a closing piece is provided at the opening of the sliding hole, and a through hole is provided on the closing piece, and the other end of the sliding rod is passed through the through hole, and the two are clearance-matched; two relatively arranged clamping edges are provided on the closing piece, and the edge of the support plate is clamped between the two clamping edges, the closing piece is fixedly connected to the side surface of the support plate by screws, and the claw hook is connected to the other end face of the sliding rod by screws.

[0015] A compression spring is provided between one end of the sliding hole and the other end of the sliding rod, and the compression spring is used to provide a force for the sliding rod to move toward the sliding hole, so as to keep the claw hook in a clamping state when the air source is cut off.

[0016] On the other hand, the utility model also provides a cantilever clamping mechanism, including a side bracket, a cantilever frame, and the aforementioned multi-point clamp; the side bracket is located on one side of the cantilever frame in the transverse direction; one transverse end of the cantilever frame is slidably connected to the side bracket along the longitudinal direction, and the multi-point clamp is arranged at the other end of the cantilever frame.

[0017] There are multiple multi-point clamps; the cantilever clamping mechanism also includes a busbar, which is fixed to one side of the multiple docking plates away from the support plate;

[0018] The said confluence plate is provided with a confluence channel, and the said confluence channel is respectively connected to each of the said docking grooves through a plurality of conducting holes, and a gas source interface is provided on a side of the said confluence plate away from the said multi-point clamping jaws, and the said gas source interface is connected to the said confluence channel;

[0019] The busbar is located below the cantilever frame, and a lifting drive cylinder is arranged above the cantilever frame. The piston rod of the lifting drive cylinder extends downward and is connected to the busbar.

[0020] The multi-point clamping claw and cantilever clamping mechanism provided by the utility model can connect the docking hole and the sliding hole by means of a strip-shaped docking groove. After the docking groove is connected to the air source equipment, a pressure change can be generated in the sliding hole, thereby controlling the movement of the sliding rod in the sliding hole. The sliding rod can drive the claw hook to move, thereby realizing the simultaneous action of multiple clamping members, and can clamp and release the sheet metal at multiple positions, thereby ensuring the clamping stability of the sheet metal and having high operational reliability. The docking plate is fitted with the support plate, and the clamping member is located at the side of the support plate. The overall thickness is small, and the space occupied is small, which is conducive to assembly into other equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a cantilever clamping mechanism provided in a preferred embodiment of the utility model;

[0022] Figure 2 yes Figure 1 A schematic diagram of the structure of the multi-point gripper of the mid-cantilever gripping mechanism;

[0023] Figure 3 yes Figure 2 Schematic diagram of the exploded view of the multi-point gripper;

[0024] Figure 4 yes Figure 3 A in the enlarged view;

[0025] Figure 5 yes Figure 2 Cross-sectional view of the multi-point gripper;

[0026] Figure 6 yes Figure 1 A three-dimensional cross-sectional view of the manifold in the cantilever clamping mechanism. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0028] In the figures, structurally similar elements are denoted by the same reference numerals.

[0029] Please refer to Figure 1 and Figure 2The utility model discloses a cantilever clamping mechanism, comprising a side bracket 900, a cantilever frame 800, and a multi-point clamping claw 100; the side bracket 900 is used to provide support for the cantilever frame 800, and is located at one side of the cantilever frame 800 in the horizontal direction. One end of the cantilever frame 800 in the horizontal direction X is slidably connected to the side bracket 900 along the longitudinal direction Y. The multi-point clamping claw 100 is arranged at the other end of the cantilever frame 800, and is used to clamp a sheet. The cantilever frame 800 can drive the multi-point clamping claw 100 to move, thereby realizing the movement of the sheet.

[0030] Combination Figure 2 and Figure 3 As shown, the multi-point clamp 100 includes a docking plate 1, a support plate 2 and a plurality of clamping members 3. The plurality of clamping members 3 are movably disposed on the support plate 2, and an air source channel is formed between the docking plate 1 and the support plate 2, and the air source channel is connected to an air source device to control the movement of the plurality of clamping members 3.

[0031] The docking plate 1 is attached to the support plate 2, and a sealing structure is provided between the two (not shown in the figure). A strip-shaped docking groove 10 is provided on the side of the docking plate 1 facing the support plate 2, and the docking groove 10 is used to connect to the air source equipment. The sealing structure is arranged around the docking groove 10 to prevent the docking groove from connecting to the outside through the gap between the docking plate 1 and the support plate 2, causing air leakage. Figure 5 As shown, the support plate 2 is provided with a sliding hole 21 and a docking hole 22. There are multiple sliding holes 21, and they are matched with the clamping member 3 one by one. One end of the sliding hole 21 is open and located at the side of the support plate 2. One end of the docking hole 22 is open, which is located on the board surface of the support plate 2 and faces the docking groove 10. There are multiple docking holes 22, and they are all connected to the docking groove 10; the other end of the docking hole 22 is connected to the sliding hole 21.

[0032] like Figure 3 , Figure 4 As shown, each clamping member 3 includes a sliding rod 31 and a claw hook 32 , one end of the sliding rod 31 is slidably connected to the sliding hole 21 , and the other end is connected to the claw hook 32 ; a sealing ring 4 is provided between the sliding rod 31 and the sliding hole 21 .

[0033] The bar-shaped docking groove 10 can be used to connect the docking hole 22 and the sliding hole 21. After the docking groove 10 is connected to the air source equipment, a pressure change can be generated in the sliding hole 21, thereby controlling the sliding rod 31 to move in the sliding hole 21. The sliding rod 31 can drive the claw hook 32 to move, thereby realizing the simultaneous action of multiple clamping members 3, and the material sheet can be clamped and released at multiple positions, ensuring the clamping stability of the material sheet and high operational reliability; the docking plate 1 is in contact with the support plate 2, and the clamping member 3 is located on the side of the support plate 2. The overall thickness is small, and the space occupied is small, which is conducive to assembly into other equipment.

[0034] like Figure 3As shown, in this embodiment, there are six clamping members 3, which are divided into two groups and symmetrically arranged on the longitudinal opposite sides of the support plate 2, so as to clamp the long strip of material. Correspondingly, there are also six sliding holes 21, which correspond to the clamping members 3 one by one. Here, in other embodiments, the number of clamping members 3 can be set as needed and is not limited to six.

[0035] like Figure 5 As shown, in this embodiment, the docking holes 22 are connected to the sliding holes 21 in a one-to-one correspondence, that is, there are also six docking holes 22. Here, in other embodiments, two sliding holes 21 arranged opposite to each other can penetrate the support plate 2 and be connected, and one docking hole 22 is used to connect the two sliding holes 21, that is, three docking holes 22 can be provided.

[0036] The docking hole 22 is connected to the sliding hole 21 via a connecting hole 23. The apertures of both the docking hole 22 and the sliding hole 21 are larger than the aperture of the connecting hole 23. The connecting hole 23 and the sliding hole 21 are connected via a conical surface. When the pressure change is utilized to drive the sliding rod 31 to move, the connecting hole 23 with a smaller aperture can be utilized. In the event of a sudden pressure change, the moving speed of the sliding rod 31 can be slowed down to prevent the sliding rod 31 from moving too fast and causing damage to the clamping member 3 or clamping the sheet.

[0037] The docking groove 10 includes a first sub-groove 101 and a second sub-groove 102. The first sub-groove 101 is two parallel to each other. The two ends of the second sub-groove 102 are respectively connected to the middle position of the two first sub-grooves 101 in the length direction, so that the docking groove 10 is in an H shape as a whole, so as to connect multiple docking holes 22. Here, the docking groove 10 can be bent in the length direction to form a variety of shapes, not limited to the H shape. A docking hole 12 is provided on the docking plate 1, one end of the docking hole 12 is connected to the second sub-groove 102, and the other end is located on the side of the docking plate 1 away from the support plate 2 and connected to the air source device. The air source device can be connected to the docking groove 10 by using the docking hole 22.

[0038] like Figure 4 As shown, a positioning groove 311 is provided on the circumferential surface of one end of the slide rod 31, and the sealing ring 4 is fixed in the positioning groove 311. By providing the positioning groove 311 on the slide rod 31, the sealing ring 4 can be fixed on the slide rod 31, and the slide rod 31 can drive the sealing ring 4 to move, which is convenient for assembling the sealing ring 4 on the slide rod 31. An inverted ring 41 is provided on the sealing ring 4, one end of the inverted ring 41 is connected to the sealing ring 4, and the other end extends obliquely in the direction away from the claw hook 32 and close to the hole wall of the sliding hole 21, and abuts against the hole wall of the sliding hole 21. When the air source device inflates the docking groove 10 and the sliding hole 21, the injection of the air source pushes the slide rod 31 to move outside the sliding hole 21, and the inclined inverted ring 41 is deformed to facilitate the movement of the slide rod 31 toward the outside of the sliding hole 21.

[0039] In this embodiment, two positioning flanges 312 are provided at one end of the slide bar 31. The positioning flange 312 is annular and arranged around the slide bar 31. There are two positioning flanges 312 arranged along the axial direction of the slide bar 31. A positioning groove 311 is formed between the two positioning flanges 312. The peripheral surface of the positioning flange 312 is in clearance with the hole wall of the sliding hole 21. The two positioning flanges 312 are used to facilitate the formation of the positioning groove 311. The surroundings of the positioning flange 312 can be relatively close to the hole wall of the sliding hole 21, so that the distance between the main body of the slide bar 31 and the sliding hole 21 is large, which reduces friction and facilitates the sliding of the slide bar 31.

[0040] The opening of the sliding hole 21 is provided with a closing piece 5, and a through hole (not shown in the figure) is provided on the closing piece 5. The other end of the sliding rod 31 is passed through the through hole, and the two are clearance-matched. The closing piece 5 is provided with two oppositely arranged clamping edges 51, and the edge of the support plate 2 is clamped between the two clamping edges 51. The closing piece 5 is fixedly connected to the side of the support plate 2 by screws, and the claw hook 32 is connected to the other end surface of the sliding rod 31 by screws.

[0041] By using the closing member 5, the opening of the sliding hole 21 can be reduced, and the stability of the sliding of the sliding rod 31 can be ensured by the cooperation between the other end of the sliding rod 31 and the through hole.

[0042] During assembly, the sealing ring 4 can be first installed in the positioning groove 311 of the sliding rod 31, and then one end of the sliding rod 31 can be inserted into the sliding hole 21; install the closing piece 5, and use screws to fix the closing piece 5 to the side of the support plate 2, while the other end of the sliding rod 31 extends out of the through hole, and finally use screws to install the claw hook 32 to the other end face of the sliding rod 31, and the assembly of the clamping piece 3 can be completed. The structure is simple and easy to assemble.

[0043] A compression spring 6 is provided between one end of the sliding hole 21 and the other end of the sliding rod 31. The compression spring 6 is used to provide a force for the sliding rod 31 to move toward the sliding hole 21, so that the sliding rod 31 is in a retracted state when the air source is cut off, thereby keeping the clamping claw in a clamping state. When the air source device inflates the sliding hole 21 through the docking groove and the docking hole 22, the air pressure at one end of the sliding hole 21 near the docking hole 22 increases, pushing the sliding rod 31 to move out of the sliding hole 21, thereby making the claw hook move away from the support plate to a loose state; when the air source device stops supplying air, the compression spring 6 provides a force for the sliding rod 31 to move toward the sliding hole 21, so that the claw hook moves toward the support plate to a clamping state, thereby clamping the sheet. In this way, even in unexpected situations such as sudden power outages due to equipment failure, that is, when the air source is cut off, the claw hook can maintain a clamping state under the elastic force of the compression spring 6, ensuring that the sheet is in a clamped state, and preventing the sheet from falling and causing damage.

[0044] In this embodiment, two ends of the compression spring 6 abut against the closing member 5 and the positioning flange 312 respectively to facilitate assembly and connection.

[0045] Here, as another embodiment, the compression spring 6 may not be provided, and the air source device may be used to evacuate air to form a negative pressure in the docking hole 22 and the sliding hole 21, thereby driving the sliding rod 31 to move inward to clamp the sheet.

[0046] like Figure 1 As shown, the side bracket 900 includes a side plate 901 and a vertical plate 902. The side plate 901 is a strip arranged in the longitudinal direction, and its plate surface is perpendicular to the transverse direction. The cantilever frame 800 is slidably connected to one side of the side plate 901 in the transverse direction. The vertical plate 902 is arranged vertically to support the side plate 901.

[0047] The multi-point clamp 100 can be suspended in the air by using the cantilever frame 800, so that the multi-point clamp 100 can penetrate into other components to clamp the sheet.

[0048] In this embodiment, there are multiple multi-point clamps 100, and multiple multi-point clamps 100 can be used to clamp multiple sheets, so as to transfer multiple sheets at the same time.

[0049] The cantilever clamping mechanism further includes a busbar 700, which is fixed to a surface of the plurality of docking plates 1 that is away from the support plate 2. Figure 6 As shown, a confluence channel 701 is provided in the confluence plate 700, and the confluence channel 701 is connected to each docking groove 10 through a plurality of conducting holes 702. Specifically, the conducting holes 702 are connected to the docking holes 12 in a one-to-one correspondence. A gas source interface 703 is provided on the side of the confluence plate 700 away from the multi-point clamping jaws 100, and the gas source interface 703 is connected to the confluence channel 701. The confluence channel 701 can be used to connect the gas sources of multiple clamping members 3. Only one gas source interface 703 is required, and it is convenient for multiple multi-point clamping jaws 100 to move simultaneously.

[0050] like Figure 1 As shown, the manifold 700 is located below the cantilever frame 800, and a lifting drive cylinder 801 is arranged above the cantilever frame 800. The piston rod of the lifting drive cylinder 801 extends downward and is connected to the manifold 700. Through the lifting drive cylinder 801, the multiple multi-point clamps 100 can be driven to move up and down along the vertical direction Z so as to approach the sheet for clamping or putting down.

[0051] In summary, although the present invention has been disclosed as above in terms of preferred embodiments, the above preferred embodiments are not intended to limit the present invention. A person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. A multi-point gripper, characterized in that: It includes a docking plate, a supporting plate and a plurality of clamping members; The docking plate is attached to the support plate, and a sealing structure is provided between the two; a strip-shaped docking groove is provided on one side of the docking plate facing the support plate, and the docking groove is used to connect to the air source equipment; the sealing structure is provided around the docking groove; The support plate is provided with sliding holes and docking holes, the sliding holes are multiple and correspond to the clamping members one by one; one end of the sliding hole is open and located at the side of the support plate; one end of the docking hole is open and located at the plate surface of the support plate and faces the docking groove; there are multiple docking holes and all are connected to the docking groove; the other end of the docking hole is connected to the sliding hole; Each of the clamping members comprises a sliding rod and a claw hook, one end of the sliding rod is slidably connected to the sliding hole, and the other end is connected to the claw hook; a sealing ring is arranged between the sliding rod and the sliding hole.

2. The multi-point gripper according to claim 1, characterized in that: The docking holes are connected to the sliding holes in a one-to-one correspondence.

3. The multi-point gripper according to claim 2, characterized in that: The docking hole is connected to the sliding hole via a connecting hole. The diameters of the docking hole and the sliding hole are both larger than the diameter of the connecting hole. The connecting hole and the sliding hole are connected via a conical surface.

4. The multi-point gripper according to claim 2, characterized in that: The docking groove includes a first sub-groove and a second sub-groove, wherein the first sub-grooves are two parallel to each other, and the two ends of the second sub-groove are respectively connected to the middle positions of the two first sub-grooves in the length direction; a docking hole is provided on the docking plate, one end of the docking hole is connected to the second sub-groove, and the other end is located on the side of the docking plate away from the support plate and connected to the air source.

5. The multi-point gripper according to claim 1, characterized in that: A positioning groove is provided on the peripheral surface of one end of the slide rod, and the sealing ring is fixed in the positioning groove. The sealing ring is provided with an inverted ring, one end of which is connected to the sealing ring, and the other end of which extends obliquely in a direction away from the claw hook and close to the hole wall of the sliding hole, and abuts against the hole wall of the sliding hole.

6. The multi-point gripper according to claim 5, characterized in that: Two positioning flanges are provided at one end of the sliding rod, and the positioning flange is annularly arranged around the sliding rod. There are two positioning flanges arranged along the axial direction of the sliding rod, and the positioning groove is formed between the two positioning flanges; the circumferential surface of the positioning flange is gap-matched with the hole wall of the sliding hole.

7. The multi-point gripper according to claim 5, characterized in that: A closing piece is provided at the opening of the sliding hole, and a through hole is provided on the closing piece. The other end of the sliding rod is passed through the through hole, and the two are clearance-matched; two clamping edges are provided on the closing piece, and the edge of the support plate is clamped between the two clamping edges. The closing piece is fixedly connected to the side surface of the support plate by screws, and the claw hook is connected to the other end face of the sliding rod by screws.

8. The multi-point clamp according to any one of claims 1 to 7, characterized in that: A compression spring is arranged between one end of the sliding hole and the other end of the sliding rod, and the compression spring is used to provide a force for the sliding rod to move into the sliding hole, so as to keep the claw hook in a clamping state when the air source is cut off.

9. A cantilever clamping mechanism, characterized in that: It comprises a side bracket, a cantilever frame, and the multi-point clamp as described in any one of claims 1 to 6; the side bracket is located on one side of the cantilever frame in the lateral direction; one lateral end of the cantilever frame is slidably connected to the side bracket along the longitudinal direction, and the multi-point clamp is arranged at the other end of the cantilever frame.

10. The cantilever clamping mechanism according to claim 9, characterized in that: There are multiple multi-point clamps; the cantilever clamping mechanism also includes a busbar, which is fixed to one side of the multiple docking plates away from the support plate; The said confluence plate is provided with a confluence channel, and the said confluence channel is connected to each of the said docking grooves through a plurality of conducting holes respectively; a gas source interface is provided on a side of the said confluence plate away from the said multi-point clamping jaws, and the said gas source interface is connected to the said confluence channel; The busbar is located below the cantilever frame, and a lifting drive cylinder is arranged above the cantilever frame. The piston rod of the lifting drive cylinder extends downward and is connected to the busbar.

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