Pneumatic crane gripper with convenient-to-replace structure

Abstract

The utility model provides a crane pneumatic gripper with a convenient replacement structure, which comprises a gripper body, a connecting seat and a magnetic suction seat, the upper end of the magnetic suction seat is fixedly connected with the lower end of a telescopic rod of an electric cylinder, the connecting seat is fixed on the upper side of the gripper body, and the upper side of the connecting seat is movably connected with the lower end of the magnetic suction seat. Compared with the prior art, the hand grab has the advantages that the connecting base and the magnetic attraction base are arranged, the two electromagnetic modules generate magnetic force to enable the whole hand grab body to be magnetically connected through the connecting base, the purpose of rapidly replacing the hand grab body is achieved, an external disassembling tool is not needed, and the replacing efficiency of the hand grab body is greatly improved; through arrangement of a positioning groove, a clamping groove and a positioning clamping block, under the condition that the electromagnetic module is powered off, the connecting seat cannot be separated from the magnetic suction seat immediately, so that the replacement safety of the gripper body is ensured, and the use safety of the gripper body in actual use is also improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pneumatic grippers, and in particular relates to a crane pneumatic gripper with a convenient replacement structure. Background Art

[0002] In the prior art, there is an unmanned bridge crane simulation test bench that can realize automatic trajectory planning (its structure is detailed in the appendix of the manual). Figure 5 ), the pneumatic gripper on it is fixed with bolts and needs to be connected to the bracket or crane with bolts. This requires that tools such as wrenches must be used to loosen or tighten the bolts when replacing the gripper, making the operation process cumbersome. Therefore, when different types of grippers need to be frequently replaced to adapt to different loads or working environments, there will be a long downtime, which not only affects work efficiency but also increases operating costs. Conventional coping methods include designing a quickly detachable gripper system, such as using quick connectors or snap-on devices, in an attempt to improve replacement efficiency and safety. However, although these methods simplify the operating process to a certain extent, they may also cause the connection between the gripper and the crane to be not firm enough, affecting the safety and stability of the gripper in heavy object handling. Therefore, we hope to design a pneumatic gripper with a new structure to solve this problem. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a crane pneumatic gripper with a convenient replacement structure to solve the problems raised in the above background technology.

[0004] The utility model is realized by the following technical solution: a pneumatic gripper for a crane with a convenient replacement structure, comprising: a gripper body, a connecting seat, and a magnetic seat, wherein the upper end of the magnetic seat is fixedly connected to the lower end of the telescopic rod of the electric cylinder, the upper side of the gripper body is fixed with the connecting seat, and the upper side of the connecting seat is movably connected to the lower end of the magnetic seat;

[0005] The connecting seat includes a metal plate and a clamping seat, and the clamping seat is integrally provided in the middle of the upper end of the metal plate;

[0006] The magnetic seat includes a shell, an electromagnetic module and a clamping column. An electromagnetic module is installed inside the left end and the right end of the shell respectively. A clamping column for clamping and preventing falling off is welded in the middle of the shell.

[0007] As a preferred embodiment, the left and right sides of the metal plate are respectively fixed to the upper end of the gripper body by a countersunk hexagonal bolt, and the length and width of the metal plate are matched with the length and width of the cylinder at the upper end of the gripper body. The metal plate can be connected to the electromagnetic module through magnetic force, thereby achieving the purpose of quickly replacing the gripper body.

[0008] As a preferred embodiment, each of the four corners of the card base is provided with a chamfered edge, and the middle of the upper end of the card base is recessed downward to form a mounting groove.

[0009] As a preferred embodiment, the left front side and the right rear side of the holder are respectively recessed downward to form a positioning groove, and the two positioning grooves are respectively connected to the left front side and the right rear side of the installation groove.

[0010] As a preferred embodiment, a card slot is radially opened outward on the left front side and the right rear side of the installation slot respectively. The card slot is an arc-shaped slot structure. The end of the card slot close to the positioning slot is vertically connected to the positioning slot. The arrangement of the card seat and the magnetic seat can realize the rapid replacement of the gripper body, and the positioning card block and the card slot cooperate with each other, and have the performance of preventing power from falling off.

[0011] As a preferred embodiment, a clearance groove is formed through the middle of the shell from front to back, and the length, width and depth of the clearance groove all match the length, width and height of the card seat.

[0012] As a preferred embodiment, a positioning block is welded to the left front side and the right rear side of the clamping column respectively, the top view structure and size of the positioning block match the top view structure and size of the positioning slot, the thickness of the positioning block matches the depth of the slot, and the positioning block is movably mounted inside the slot.

[0013] After adopting the above technical solution, the beneficial effect of the utility model is as follows: by providing a connecting seat and a magnetic seat, the two electromagnetic modules generate magnetic force to magnetically connect the entire gripper body through the connecting seat, thereby achieving the purpose of quickly replacing the gripper body without using external disassembly and assembly tools, greatly improving the replacement efficiency of the gripper body;

[0014] The positioning groove, the card slot and the positioning card block are set so that when the electromagnetic module is powered off, the connecting seat will not immediately detach from the magnetic seat, which ensures the safety of replacing the gripper body and improves the safety of the gripper body in actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0016] Figure 1 This is a schematic diagram of the overall structure of a crane pneumatic gripper with a convenient replacement structure according to the utility model.

[0017] Figure 2 This is a schematic diagram of the connection between the gripper body and the connecting seat of a crane pneumatic gripper with a convenient replacement structure according to the present invention.

[0018] Figure 3 This is a schematic diagram of the magnetic seat structure of a crane pneumatic gripper with a convenient replacement structure according to the present invention.

[0019] Figure 4 This is a schematic diagram of the connection between the clamping column and the positioning block of a crane pneumatic gripper with a convenient replacement structure in the utility model.

[0020] Figure 5 Schematic diagram of an unmanned bridge crane simulation test bench that can achieve automatic trajectory planning using existing technology.

[0021] In the figure, 100 is the gripper body;

[0022] 200-connecting seat, 210-metal plate, 220-card seat, 221-positioning slot, 222-card slot, 223-mounting slot, 224-chamfered edge;

[0023] 300-magnetic base, 310-housing, 311-relief slot, 320-electromagnetic module, 330-clamping column, 331-positioning block;

[0024] 400-Electric cylinder. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figures 1 to 5 The utility model provides a technical solution: a pneumatic gripper for a crane with a convenient replacement structure, comprising: a gripper body 100, a connecting base 200, and a magnetic base 300, wherein the upper end of the magnetic base 300 is fixedly connected to the lower end of the telescopic rod of the electric cylinder 400, the connecting base 200 is fixed on the upper side of the gripper body 100, and the upper side of the connecting base 200 is movably connected to the lower end of the magnetic base 300;

[0027] The connecting base 200 includes a metal plate 210 and a clamping base 220. The clamping base 220 is integrally provided in the middle of the upper end of the metal plate 210.

[0028] The magnetic base 300 includes a shell 310, an electromagnetic module 320 and a clamping column 330. An electromagnetic module 320 is installed inside the left end and the right end of the shell 310 respectively. A clamping column 330 for clamping and preventing falling off is welded in the middle of the shell 310.

[0029] See also Figures 1 to 4 The left and right sides of the metal plate 210 are fixed to the upper end of the gripper body 100 by a countersunk hexagon socket bolt respectively, and the length and width of the metal plate 210 match the length and width of the cylinder at the upper end of the gripper body 100. The metal plate 210 can be connected to the electromagnetic module 320 through magnetic force, thereby achieving the purpose of quickly replacing the gripper body 100.

[0030] Each of the four corners of the card holder 220 is provided with a chamfered edge 224 , and the middle of the upper end of the card holder 220 is recessed downward to form a mounting groove 223 .

[0031] The left front side and the right rear side of the holder 220 are respectively recessed downward to form a positioning groove 221 . The two positioning grooves 221 are respectively connected to the left front side and the right rear side of the installation groove 223 .

[0032] A card slot 222 is radially opened outward on the left front side and the right rear side of the installation slot 223. The card slot 222 is an arc-shaped slot structure. The end of the card slot 222 close to the positioning slot 221 is vertically connected to the positioning slot 221. The arrangement of the card seat 220 and the magnetic seat 300 can realize the rapid replacement of the gripper body 100, and the positioning card block 331 cooperates with the card slot 222 to have the performance of preventing power from falling off.

[0033] As the first embodiment of the present invention, by setting the connecting seat 200 and the magnetic seat 300, in actual use, when the gripper body 100 needs to be installed, the connecting seat 200 is first fixed to the upper end of the gripper body 100, and then the whole formed by the two is placed in the designated position of the replacement area, and then the electric steel is started to move the magnetic seat 300 downward, and then the operator aligns the positioning groove 221 on the card seat 220 with the two positioning blocks 331 on the card post 330, and then inserts the two positioning blocks 331 into the positioning groove 221, and The clamping column 330 is placed inside the installation groove 223, and then the connecting base 200 and the gripper body 100 are rotated counterclockwise so that the positioning block 331 is screwed into the slot 222. Then the shell 310 and the connecting base 200 are clamped as a whole, and the two electromagnetic modules 320 are started. The two electromagnetic modules 320 generate magnetic force to magnetically connect the entire gripper body 100 through the connecting base 200, so as to achieve the purpose of quickly replacing the gripper body 100 without using external disassembly and assembly tools, thereby greatly improving the replacement efficiency of the gripper body 100.

[0034] See also Figures 1 to 4A clearance groove 311 is formed through the middle of the shell 310 from front to back, and the length, width and depth of the clearance groove 311 match the length, width and height of the card holder 220.

[0035] A positioning block 331 is welded to the left front side and the right rear side of the clamping column 330 respectively. The top view structure and size of the positioning block 331 match the top view structure and size of the positioning slot 221. The thickness of the positioning block 331 matches the depth of the slot 222. The positioning block 331 is movably mounted inside the slot 222.

[0036] As the second embodiment of the present utility model, based on the above-mentioned first embodiment, the positioning groove 221, the card slot 222 and the positioning block 331 are set. In actual use, since a positioning block 331 is welded on the left front side and the right rear side of the card post 330, the top-view structure and size of the positioning block 331 match the top-view structure and size of the positioning groove 221, and the thickness of the positioning block 331 matches the depth of the card slot 222. The positioning block 331 is movably mounted inside the card slot 222. When the electromagnetic module 320 is powered off, the connecting seat 200 will not immediately detach from the magnetic suction seat 300, which ensures the safety of replacing the gripper body 100 and improves the safety of the gripper body 100 in actual use.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pneumatic gripper for a crane with a convenient replacement structure, comprising: A gripper body (100), a connecting seat (200) and a magnetic seat (300), wherein the upper end of the magnetic seat (300) is fixedly connected to the lower end of the telescopic rod of the electric cylinder (400), and is characterized in that the connecting seat (200) is fixed on the upper side of the gripper body (100), and the upper side of the connecting seat (200) is movably connected to the lower end of the magnetic seat (300); The connecting seat (200) comprises a metal plate (210) and a clamping seat (220), wherein the clamping seat (220) is integrally provided in the middle of the upper end of the metal plate (210); The magnetic seat (300) comprises a housing (310), an electromagnetic module (320) and a clamping column (330). An electromagnetic module (320) is installed inside the left end and the right end of the housing (310), respectively. A clamping column (330) for clamping and preventing disengagement is welded in the middle of the housing (310).

2. The pneumatic gripper for a crane with a convenient replacement structure according to claim 1, characterized in that: The left and right sides of the metal plate (210) are fixed to the upper end of the gripper body (100) via a countersunk hexagon socket bolt, respectively, and the length and width of the metal plate (210) match the length and width of the cylinder at the upper end of the gripper body (100).

3. The pneumatic gripper for a crane with a convenient replacement structure according to claim 2, characterized in that: Each of the four corners of the card seat (220) is provided with a chamfered edge (224), and the middle of the upper end of the card seat (220) is recessed downward to form a mounting groove (223).

4. The pneumatic gripper for a crane with a convenient replacement structure according to claim 3, characterized in that: The left front side and the right rear side of the card seat (220) are respectively recessed downward to form a positioning groove (221), and the two positioning grooves (221) are respectively connected to the left front side and the right rear side of the installation groove (223).

5. The pneumatic gripper for a crane with a convenient replacement structure according to claim 4, characterized in that: A clamping groove (222) is respectively radially opened outward on the left front side and the right rear side of the installation groove (223). The clamping groove (222) is an arc-shaped groove structure, and one end of the clamping groove (222) close to the positioning groove (221) is vertically connected to the positioning groove (221).

6. The pneumatic gripper for a crane with a convenient replacement structure according to claim 5, characterized in that: A clearance groove (311) is formed in the middle of the housing (310) from front to back, and the length, width and depth of the clearance groove (311) all match the length, width and height of the card seat (220).

7. The pneumatic gripper for a crane with a convenient replacement structure according to claim 6, characterized in that: A positioning block (331) is welded to the left front side and the right rear side of the clamping column (330), respectively. The top view structure and size of the positioning block (331) match the top view structure and size of the positioning slot (221). The thickness of the positioning block (331) matches the depth of the card slot (222), and the positioning block (331) is movably mounted inside the card slot (222).

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