Clamping device for narrow space

Abstract

The invention provides a clamping device for a narrow and small space. The clamping device comprises a shell, a through groove is formed in one end of each clamping jaw, one ends of the two clamping jaws are hinged to each other, and the other ends of the two clamping jaws penetrate through one end of the shell; the fixed cylinder is fixedly mounted in the shell; the double-end electric telescopic rod is mounted in the fixed cylinder; wherein one end of the double-end electric telescopic rod is connected with a connecting frame, and two connecting rods are oppositely hinged to the interior of the connecting frame up and down. When an object is clamped, the other end of a double-end electric telescopic rod is started to extend outwards to drive a first suction cup to move, the object can be adsorbed through the first suction cup, then the clamping effect can be enhanced, the object is prevented from falling off in the clamping process, and the clamping and fixing effect is enhanced while it is guaranteed that the overall device is small and exquisite; the use is convenient.

Description

Technical Field

[0001] The invention relates to the field of clamping devices, in particular to a clamping device used in a narrow space. Background Art

[0002] In various processing fields, clamping mechanisms are usually required to clamp workpieces. Pneumatic or electric clamps are commonly used clamping mechanisms. The two clamping heads of this type of clamp generally move horizontally to open and close. The clamped workpiece enters the gap of the clamping head in a direction perpendicular to the movement direction of the clamping head, and then is clamped by the clamping head.

[0003] When working in a small space, a small clamping device is needed to clamp objects. However, most of the clamping devices currently used in small spaces have relatively simple clamping methods. Since the clamping device is small in size, the clamping area for the object is small, and the clamping force is also small, which cannot increase the clamping effect of the object and the object is prone to fall off during the clamping process. Summary of the invention

[0004] In order to solve the above problems, the present invention proposes a clamping device for a narrow space to solve the above problems in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides a clamping device for use in a narrow space, comprising: a shell; two clamping claws, one end of which is provided with a through groove, one end of the two clamping claws is hinged to each other, and the other end of the two clamping claws passes through one end of the shell; a fixed cylinder fixedly installed inside the shell; a double-headed electric telescopic rod installed inside the fixed cylinder; wherein one end of the double-headed electric telescopic rod is connected to a connecting frame, and two connecting rods are hingedly connected to the inside of the connecting frame relative to each other up and down, and one end of the two connecting rods are respectively slidably connected to one end of the two clamping claws; the other end of the double-headed electric telescopic rod is connected to a first suction cup.

[0006] Furthermore, two linkage rods are provided on the other end of the double-headed electric telescopic rod, and sliding grooves are provided on the upper and lower sides of the fixed cylinder, and the linkage rod passes through the fixed cylinder through the sliding grooves; a storage groove is provided on one side of the clamping claw, and a mounting plate is slidingly provided inside the storage groove, and a plurality of second suction cups are fixedly installed on one side of the mounting plate; a transmission assembly is provided on the upper and lower inner walls of the shell, the linkage rod is connected to the transmission assembly, and one end of the transmission assembly is connected to the mounting plate for driving the mounting plate to slide up and down.

[0007] Furthermore, the transmission assembly includes a first oil tank installed on the inner walls of the upper and lower sides of the clamping claw, a second cross plate slidably installed on the inner walls of the upper and lower sides of the clamping claw, a piston column installed at one end of the second cross plate, and a propulsion assembly, one end of the piston column extends to the interior of the first oil tank and is connected to a second push plate; one end of the linkage rod is connected to a T-shaped plate, and the upper and lower inner walls of the shell are rotatably provided with a third gear, the bottom of the third gear is connected to a second gear, a plurality of second gear teeth are provided on one side of the T-shaped plate, the T-shaped plate is meshed with the second gear through the second gear teeth, a plurality of third gear teeth are provided on one side of the second cross plate, and the third gear is meshed with the third gear teeth; the propulsion assembly is arranged inside the clamping claw and is connected to the first oil tank and the mounting plate, and an oil filling pipe is arranged on the first oil tank.

[0008] Furthermore, the propulsion assembly includes a second oil tank arranged inside the clamping claw, a first push plate slidably installed inside the second oil tank, a push rod connected to one end of the first push plate, and a second wedge block fixedly installed at one end of the push rod; a third mounting groove is opened inside the clamping claw, the third mounting groove is connected to the receiving groove, a first wedge block is connected to the top of the mounting plate, and the second wedge block is wedged with the first wedge block; hydraulic oil is provided inside the first oil tank, one end of the first oil tank is connected to an oil pipe, and one end of the oil pipe is connected to the second oil tank; a second spring is provided at one end inside the second oil tank, and one end of the second spring is connected to the first push plate.

[0009] Furthermore, two first springs are arranged opposite to each other on the inner bottom wall of the third mounting groove, and the top of the first spring is connected to the bottom of the first wedge block.

[0010] Furthermore, a first mounting groove and a second mounting groove are provided on one side of the clamping claw, a first nozzle is arranged inside the first mounting groove, a second nozzle is arranged inside the second mounting groove, a water supply assembly is arranged inside the shell, and the water supply assembly is connected to the first nozzle and the second nozzle; the water outlet end of the first nozzle is toward the other end of the clamping claw, and the water outlet end of the second nozzle is toward the first suction cup.

[0011] Furthermore, the water supply assembly includes a water tank arranged on the inner walls of the upper and lower sides of the shell, a pump shell installed on the inner walls of the upper and lower sides of the shell, and a first gear rotatably installed at the bottom of the pump shell, one end of the first gear extends to the interior of the pump shell and is provided with a plurality of blades, one end of the linkage rod is provided with a first cross plate, one side of the first cross plate is provided with a plurality of first gear teeth, and the first cross plate is meshed with the first gear through the first gear teeth; the pump shell is connected to the water tank through a pipeline, one end of the water tank is connected to a water pipe, one end of the water pipe is respectively connected to the second nozzle and the first nozzle; a water injection pipe is provided on the water tank.

[0012] Furthermore, a connecting groove is provided at one end of the clamping claw, strip-shaped sliding grooves are provided on inner walls on both sides of the connecting groove, and one end of the connecting rod is slidably connected to the strip-shaped sliding grooves.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. When clamping an object, start the other end of the double-headed electric telescopic rod to extend outward, drive the first suction cup to move, and the object can be adsorbed by the first suction cup, thereby enhancing the clamping effect and preventing the object from falling off during the clamping process. While ensuring the overall compactness of the device, the clamping and fixing effect is enhanced, making it easy to use; Second, when the other end of the double-headed electric telescopic rod is extended, the linkage rod will be driven to move, and the mounting plate will be driven to move out of the storage slot through the linkage rod and the transmission assembly, and the second suction cup will move out of the storage slot synchronously. When the clamping claw clamps the object, the second suction cup contacts and adsorbs the surface of the object, thereby enhancing the clamping effect, preventing the object from moving during the clamping process, and ensuring stability during clamping; 3. When the other end of the second electric telescopic rod is extended to push the first suction cup to move toward the object, the first gear is driven to move through the linkage rod and the first horizontal plate. The first gear rotates, and a negative pressure effect is generated under the action of the blades. The water inside the water tank is pumped into the inside of the pump housing, and then input into the inside of the first nozzle and the second nozzle through the water pipe. The water is sprayed onto the surface of the object through the first nozzle and the second nozzle to humidify the surface of the object. The humidified surface is more conducive to the adsorption of the first suction cup and the second suction cup, thereby enhancing the adsorption effect, further preventing the object from detaching during clamping, and facilitating use by the staff.

[0014] For better understanding and implementation, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the first three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of a second three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the internal structure of the housing in the present invention; Figure 4 It is a schematic diagram of the structure of the clamping claw in the present invention; Figure 5 is a bottom view of the clamping claw of the present invention; Figure 6 It is a structural schematic diagram of the first horizontal plate in the present invention; Figure 7 is a cross-sectional view of the pump housing of the present invention; Figure 8 is a cross-sectional view of the clamping claw of the present invention; Fig. 9 is a cross-sectional view of the second horizontal plate in the present invention; Fig.10 is a cross-sectional view of the second oil tank of the present invention; Fig.11 It is a cross-sectional view of the first oil tank in the present invention.

[0016] In the figure: 1, housing; 2, clamping claw; 3, fixing cylinder; 4, first suction cup; 5, oil injection pipe; 6, water injection pipe; 7, water pipe; 8, oil pipe; 9, storage slot; 10, first mounting slot; 11, second mounting slot; 12, double-headed electric telescopic rod; 13, connecting frame; 14, connecting rod; 15, connecting slot; 16, linkage rod; 17, mounting plate; 18, through slot; 19, sliding slot; 20, first nozzle; 21, second nozzle; 22, water tank; 23, pump housing; 24, first nozzle; 25, second nozzle; 26, water tank; 27, pump housing; 28, second nozzle; 29, first nozzle; 30, second nozzle; 31, second nozzle; 32, water tank; 33, pump housing; 34, second nozzle; 35, second nozzle; 36, second nozzle; 37, second nozzle; 38, second nozzle; 39, first nozzle; 40, second nozzle; 41, second nozzle; 42, second nozzle; 43, second nozzle; 44, second nozzle; 45, second nozzle; 46, second nozzle; 47, second nozzle; 48, second nozzle; 49, first nozzle; 50, first nozzle; 51, second nozzle; 52, second nozzle; 53, second nozzle; 54, second nozzle; 55, second nozzle; 56, second nozzle; 57, second nozzle; 58, second nozzle; 59, first nozzle; 60, first nozzle; 61, second nozzle; 62, second nozzle; 63, second nozzle; 64, second nozzle; 65, second nozzle; 66, second nozzle; 67, second nozzle; 68, second nozzle; 69, first nozzle; 70, first nozzle; 71, first nozzle; 72, second nozzle; A gear; 25, a first transverse plate; 26, a first gear tooth; 27, a T-shaped plate; 28, a second gear; 29, a first oil tank; 30, a piston column; 31, a blade; 32, a third mounting groove; 33, a first wedge block; 34, a second wedge block; 35, a second oil tank; 36, a push rod; 37, a first spring; 38, a third gear; 39, a second transverse plate; 40, a second gear tooth; 41, a third gear tooth; 42, a second spring; 43, a first push plate; 44, a second push plate; 45, a second suction cup. DETAILED DESCRIPTION

[0017] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific implementation methods of the present invention are now described with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the following.

[0018] Reference Figure 1-11As shown, a clamping device for a narrow space comprises: a shell 1; two clamping claws 2, one end of which is provided with a through slot 18, one end of the two clamping claws 2 is hinged to each other, and the other end of the two clamping claws 2 passes through one end of the shell 1; a fixed cylinder 3 fixedly installed inside the shell 1; a double-headed electric telescopic rod 12 installed inside the fixed cylinder 3; wherein one end of the double-headed electric telescopic rod 12 is connected to a connecting frame 13, and two connecting rods 14 are hinged relatively up and down inside the connecting frame 13, and one end of the two connecting rods 14 are respectively slidably connected to one end of the two clamping claws 2; the other end of the double-headed electric telescopic rod 12 is connected to a first suction cup 4, one end of the clamping claw 2 is provided with a connecting slot 15, and the inner walls on both sides of the connecting slot 15 are provided with strip slides, and one end of the connecting rod 14 is slidably connected to the strip slide; Two linkage rods 16 are arranged on the other end of the double-headed electric telescopic rod 12, and sliding grooves 19 are provided on the upper and lower sides of the fixed cylinder 3, and the linkage rod 16 passes through the fixed cylinder 3 through the sliding grooves 19; a storage groove 9 is provided on one side of the clamping claw 2, and a mounting plate 17 is slidingly provided inside the storage groove 9, and a plurality of second suction cups 45 are fixedly installed on one side of the mounting plate 17; a transmission assembly is provided on the upper and lower inner walls of the shell 1, and the linkage rod 16 is connected to the transmission assembly, and one end of the transmission assembly is connected to the mounting plate 17, which is used to drive the mounting plate 17 to slide up and down.

[0019] The present invention provides a technical solution. When clamping an object, the double-headed electric telescopic rod 12 is started to make one end of the double-headed electric telescopic rod 12 extend outward, and then the two connecting rods 14 are driven to move. The connecting rod 14 drives one end of the clamping claw 2 to move relative to each other, so that the clamping claw 2 opens. Then, when the object enters between the two clamping claws 2, one end of the double-headed electric telescopic rod 12 is controlled to contract, driving the two clamping claws 2 to close, and then clamping the object. The device is small in size and is convenient for clamping objects in a small space. When clamping an object, the other end of the double-headed electric telescopic rod 12 is started to extend outward, driving the first suction cup 4 to move. The object can be adsorbed by the first suction cup 4, thereby enhancing the clamping effect and preventing the object from falling off during the clamping process. While ensuring the overall compactness of the device, the clamping and fixing effect is enhanced, which is convenient for use. At the same time, when the other end of the double-headed electric telescopic rod 12 is extended, it will drive the linkage rod 16 to move, and the mounting plate 17 is driven to move out of the storage groove 9 through the linkage rod 16 and the transmission assembly. The second suction cup 45 moves out of the storage groove 9 synchronously. When the clamping claw 2 clamps the object, the second suction cup 45 contacts and adsorbs the surface of the object, thereby enhancing the clamping effect, preventing the object from moving during the clamping process, and ensuring stability during clamping.

[0020] Preferably: the transmission assembly includes a first oil tank 29 installed on the inner walls of the upper and lower sides of the clamping claw 2, a second transverse plate 39 slidably installed on the inner walls of the upper and lower sides of the clamping claw 2, a piston column 30 installed at one end of the second transverse plate 39, and a propulsion assembly, one end of the piston column 30 extends to the inside of the first oil tank 29 and is connected to a second push plate 44; one end of the linkage rod 16 is connected to a T-shaped plate 27, and the inner walls of the upper and lower sides of the housing 1 are rotatably provided with a third gear 38, and the bottom of the third gear 38 is connected to the second gear 28, and a plurality of second gear teeth 40 are provided on one side of the T-shaped plate 27, and the T-shaped plate 27 is meshed with the second gear 28 through the second gear teeth 40, and a plurality of third gear teeth 41 are provided on one side of the second transverse plate 39, and the third gear 38 is meshed with the third gear teeth 41; the propulsion assembly is arranged inside the clamping claw 2, and is connected to the first oil tank 29 and the mounting plate 17, and an oil filling pipe 5 is arranged on the first oil tank 29; The propulsion assembly includes a second oil tank 35 arranged inside the clamping claw 2, a first push plate 43 slidably installed inside the second oil tank 35, a push rod 36 connected to one end of the first push plate 43, and a second wedge block 34 fixedly installed at one end of the push rod 36. A third mounting groove 32 is opened inside the clamping claw 2, and the third mounting groove 32 is connected to the storage groove 9. The top of the mounting plate 17 is connected to the first wedge block 33, and the second wedge block 34 is wedged with the first wedge block 33; hydraulic oil is provided inside the first oil tank 29, and an oil pipeline 8 is arranged at one end of the first oil tank 29, and one end of the oil pipeline 8 is connected to the second oil tank 35; a second spring 42 is provided at one end inside the second oil tank 35, and one end of the second spring 42 is connected to the first push plate 43. Two first springs 37 are arranged opposite to each other on the inner bottom wall of the third mounting groove 32, and the top of the first spring 37 is connected to the bottom of the first wedge block 33.

[0021] Specifically, when the linkage rod 16 moves, it will drive the T-shaped plate 27 to move, and through the movement of the T-shaped plate 27, the second gear 28 is driven to rotate under the action of the second gear teeth 40, and then the third gear 38 is driven to rotate through the second gear 28, and the second cross plate 39 is driven by the third gear 38 to follow the other end of the double-headed electric telescopic rod 12 to move, and the second cross plate 39 drives the piston column 30 and the second push plate 44 to move, and the hydraulic oil inside the first oil tank 29 is squeezed by the second push plate 44, and the hydraulic oil inside the first oil tank 29 is input into the second oil tank 35 through the oil pipe 8, and then the hydraulic oil squeezes the first push plate 43, so that the push rod 36 drives the second wedge block 34 to move in the direction of the first wedge block 33, and wedges with the first wedge block 33, and the first wedge block 33 is driven to move downward by the continuous movement of the second wedge block 34, thereby driving the mounting plate 17 to move downward, so that the mounting plate 17 moves out of the storage groove 9. The second spring 42 is provided to facilitate the first push plate 43 to be automatically reset, and the first spring 37 is provided to facilitate the mounting plate 17 to be automatically reset.

[0022] Preferably: a first mounting groove 10 and a second mounting groove 11 are provided on one side of the clamping claw 2, a first nozzle 20 is arranged inside the first mounting groove 10, a second nozzle 21 is arranged inside the second mounting groove 11, a water supply assembly is arranged inside the housing 1, and the water supply assembly is connected to the first nozzle 20 and the second nozzle 21; the water outlet end of the first nozzle 20 faces the other end of the clamping claw 2, and the water outlet end of the second nozzle 21 faces the first suction cup 4; The water supply assembly includes a water tank 22 arranged on the inner walls of the upper and lower sides of the shell 1, a pump shell 23 installed on the inner walls of the upper and lower sides of the shell 1, and a first gear 24 rotatably installed at the bottom of the pump shell 23. One end of the first gear 24 extends to the interior of the pump shell 23 and is provided with a plurality of blades 31. One end of the linkage rod 16 is provided with a first transverse plate 25, and one side of the first transverse plate 25 is provided with a plurality of first gear teeth 26. The first transverse plate 25 is meshed with the first gear 24 through the first gear teeth 26; the pump shell 23 is connected to the water tank 22 through a pipeline, and one end of the water tank 22 is connected to a water pipe 7, and one end of the water pipe 7 is respectively connected to the second nozzle 21 and the first nozzle 20; a water injection pipe 6 is provided on the water tank 22.

[0023] Specifically, when the other end of the double-headed electric telescopic rod 12 is extended to push the first suction cup 4 to move toward the object, the linkage rod 16 that moves with the other end of the double-headed electric telescopic rod 12 will drive the first cross plate 25 to move, and under the action of the first gear teeth 26, the first gear 24 is driven to move. Through the rotation of the first gear 24, a negative pressure effect is generated under the action of the blades 31, and the water inside the water tank 22 is pumped into the inside of the pump housing 23, and then input into the inside of the first nozzle 20 and the second nozzle 21 through the water pipe 7, and sprayed onto the surface of the object through the first nozzle 20 and the second nozzle 21 to humidify the surface of the object. The humidified surface is more conducive to the adsorption of the first suction cup 4 and the second suction cup 45, thereby enhancing the adsorption effect, further preventing the object from detaching during clamping, and facilitating use by the staff.

[0024] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A clamping device for a narrow space, characterized in that: include: Housing (1); Two clamping claws (2), one end of each clamping claw (2) being provided with a through slot (18), one end of each clamping claw (2) being hinged to each other, and the other end of each clamping claw (2) penetrating one end of the housing (1); A fixing cylinder (3) fixedly mounted inside the housing (1); A double-ended electric telescopic rod (12) installed inside the fixed cylinder (3); One end of the double-headed electric telescopic rod (12) is connected to a connecting frame (13), two connecting rods (14) are hingedly connected to each other vertically inside the connecting frame (13), and one end of the two connecting rods (14) is slidably connected to one end of the two clamping claws (2) respectively; The other end of the double-headed electric telescopic rod (12) is connected to a first suction cup (4).

2. A clamping device for use in a narrow space according to claim 1, characterized in that: Two linkage rods (16) are arranged on the other end of the double-headed electric telescopic rod (12); sliding grooves (19) are provided on the upper and lower sides of the fixed cylinder (3); and the linkage rod (16) passes through the fixed cylinder (3) through the sliding grooves (19); A receiving groove (9) is provided on one side of the clamping claw (2), a mounting plate (17) is slidably provided inside the receiving groove (9), and a plurality of second suction cups (45) are fixedly mounted on one side of the mounting plate (17); The upper and lower inner walls of the housing (1) are provided with a transmission assembly, the linkage rod (16) is connected to the transmission assembly, and one end of the transmission assembly is connected to the mounting plate (17) for driving the mounting plate (17) to slide up and down.

3. A clamping device for use in a narrow space according to claim 2, characterized in that: The transmission assembly comprises a first oil tank (29) mounted on the inner walls of the upper and lower sides of the clamping claw (2), a second transverse plate (39) slidably mounted on the inner walls of the upper and lower sides of the clamping claw (2), a piston column (30) mounted on one end of the second transverse plate (39), and a propulsion assembly, wherein one end of the piston column (30) extends to the interior of the first oil tank (29) and is connected to a second push plate (44); One end of the linkage rod (16) is connected to a T-shaped plate (27); a third gear (38) is rotatably provided on the inner walls of the upper and lower sides of the housing (1); the bottom of the third gear (38) is connected to the second gear (28); a plurality of second gear teeth (40) are provided on one side of the T-shaped plate (27); the T-shaped plate (27) meshes with the second gear (28) via the second gear teeth (40); a plurality of third gear teeth (41) are provided on one side of the second cross plate (39); the third gear (38) meshes with the third gear teeth (41); The propulsion assembly is arranged inside the clamping claw (2) and is connected to the first oil tank (29) and the mounting plate (17); an oil filling pipe (5) is arranged on the first oil tank (29).

4. A clamping device for use in a narrow space according to claim 3, characterized in that: The propulsion assembly comprises a second oil tank (35) arranged inside the clamping claw (2), a first push plate (43) slidably mounted inside the second oil tank (35), a push rod (36) connected to one end of the first push plate (43), and a second wedge block (34) fixedly mounted on one end of the push rod (36); a third mounting groove (32) is provided inside the clamping claw (2), the third mounting groove (32) is communicated with the receiving groove (9), a first wedge block (33) is connected to the top of the mounting plate (17), and the second wedge block (34) is wedged with the first wedge block (33); Hydraulic oil is provided inside the first oil tank (29), one end of the first oil tank (29) is connected to an oil delivery pipe (8), and one end of the oil delivery pipe (8) is connected to the second oil tank (35); A second spring (42) is provided at one end inside the second oil tank (35), and one end of the second spring (42) is connected to the first push plate (43).

5. A clamping device for use in a narrow space according to claim 4, characterized in that: Two first springs (37) are arranged opposite to each other on the inner bottom wall of the third installation groove (32), and the top of the first spring (37) is connected to the bottom of the first wedge (33).

6. A clamping device for use in a narrow space according to claim 2, characterized in that: A first installation groove (10) and a second installation groove (11) are provided on one side of the clamping claw (2); a first nozzle (20) is arranged inside the first installation groove (10); a second nozzle (21) is arranged inside the second installation groove (11); a water supply component is arranged inside the housing (1); the water supply component is connected to the first nozzle (20) and the second nozzle (21); The water outlet end of the first nozzle (20) faces the other end of the clamping claw (2), and the water outlet end of the second nozzle (21) faces the first suction cup (4).

7. A clamping device for use in a narrow space according to claim 6, characterized in that: The water supply assembly comprises a water tank (22) arranged on the inner walls of the upper and lower sides of the housing (1), a pump housing (23) mounted on the inner walls of the upper and lower sides of the housing (1), and a first gear (24) rotatably mounted on the bottom of the pump housing (23), one end of the first gear (24) extending into the interior of the pump housing (23) and provided with a plurality of blades (31), one end of the linkage rod (16) being provided with a first transverse plate (25), one side of the first transverse plate (25) being provided with a plurality of first gear teeth (26), and the first transverse plate (25) being meshed with the first gear (24) via the first gear teeth (26); The pump housing (23) is connected to the water tank (22) through a pipeline, one end of the water tank (22) is connected to a water pipe (7), and one end of the water pipe (7) is respectively connected to the second nozzle (21) and the first nozzle (20); The water tank (22) is provided with a water injection pipe (6).

8. The clamping device for use in a narrow space according to claim 1, characterized in that: A connecting groove (15) is provided at one end of the clamping claw (2), strip-shaped sliding grooves are provided on inner walls on both sides of the connecting groove (15), and one end of the connecting rod (14) is slidably connected to the strip-shaped sliding grooves.

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