Pneumatic chuck with external power

Abstract

The utility model discloses a power external pneumatic chuck, include: bottom plate, have the disc seat of central hole, and with bottom plate connection forms transmission cavity, a plurality of claw jaw subassembly, its around disc seat center arrangement in the outside surface of disc seat, a plurality of power unit, set up in the outside surface of disc seat, and located between two adjacent claw jaw subassembly, transmission mechanism, set up in transmission cavity, its connection power unit's output and claw jaw subassembly's input, transmission mechanism carries out external, transmission mechanism sets up between two claw jaw subassembly, transmission mechanism department occupies transmission cavity's space like this, transmission cavity's thickness reduces, utilizes the space between two adjacent claw jaw subassembly can place transmission mechanism, because claw jaw subassembly has certain thickness, transmission mechanism's thickness and claw jaw subassembly's thickness partially overlap, so the overall pneumatic chuck thickness is smaller, and the length of the tail material left after cutting is shorter, and raw materials can be saved.

Description

Technical Field

[0001] This utility model relates to pneumatic chucks, and in particular to pneumatic chucks with external power. Background Technology

[0002] A full-stroke chuck is a chuck that can work throughout its entire stroke and can hold a range of workpieces. It is mainly used in laser tube cutting equipment and can meet the critical processing requirements of thin-walled tubes such as square tubes, round tubes, and elliptical tubes.

[0003] For example, the double telescopic full-stroke chuck disclosed in CN221184761U has its first power assembly and second power assembly located between the base plate and the disc plate. Because the height of the first power assembly and the second power assembly is too high, the thickness of the base plate and the disc plate will be too large, which in turn will result in the overall thickness of the pneumatic chuck being too large. As a result, when the device clamps the pipe fitting for cutting, the length of the remaining tail material needs to be greater than the thickness of the pneumatic chuck in order to cut, resulting in excessive length of remaining tail material and wasting materials.

[0004] In summary, how to reduce the thickness of pneumatic chucks has become an urgent problem for researchers in this field. Utility Model Content

[0005] The technical problem to be solved by this utility model is: how to reduce the thickness of the pneumatic chuck;

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] This utility model is an externally powered pneumatic chuck, comprising: a base plate; a chuck seat with a central hole, which is connected to the base plate to form a transmission cavity; multiple jaw assemblies arranged around the center of the chuck seat on the outer side of the chuck seat; multiple power units disposed on the outer side of the chuck seat and located between two adjacent jaw assemblies; and a transmission mechanism disposed in the transmission cavity, which connects the output end of the power units and the input end of the jaw assemblies.

[0008] In this design, the transmission mechanism is externally mounted and positioned between the two jaw assemblies. This reduces the space occupied by the transmission mechanism in the transmission cavity, thus reducing the thickness of the transmission cavity. The space between the two adjacent jaw assemblies can be used to house the transmission mechanism. Since the jaw assemblies themselves have a certain thickness, the thickness of the transmission mechanism partially overlaps with the thickness of the jaw assemblies. As a result, the overall thickness of the pneumatic chuck is smaller, resulting in a shorter length of the remaining material after cutting, which saves raw materials.

[0009] To illustrate the specific structure of the jaw assembly, this utility model employs a jaw assembly comprising: two first jaw assemblies arranged opposite each other in a first direction, slidably disposed on the outer side of the disk base; and two second jaw assemblies arranged opposite each other in a second direction, slidably disposed on the outer side of the disk base; wherein the second direction and the first direction are perpendicularly arranged, and each of the first jaw assembly and the second jaw assembly comprises: a slide rail, which is fixedly connected to the disk base; a jaw base, which is slidably connected to the slide rail, having a first rack on one side; and a clamping part at its end;

[0010] In this scheme, two first jaw assemblies are arranged opposite to each other, and two second jaw assemblies are arranged opposite to each other. Both the first jaw assembly and the second jaw assembly include: a slide rail fixed on the disc base, a jaw seat slidably arranged on the slide rail, and a clamping part provided at the end of the jaw seat. In this way, the clamping of the pipe can be achieved by the clamping parts arranged opposite to each other.

[0011] To illustrate the specific structure of the transmission mechanism, this utility model uses a transmission mechanism comprising: a first turntable and a second turntable rotatably disposed in the transmission cavity and arranged vertically; two first rotating shafts disposed in a first direction, passing through the disc base and rotatably connected to the base plate, with a first lower gear at one end located inside the transmission cavity meshing with the first turntable, and a first upper gear at one end located outside the transmission cavity meshing with the first rack of the first claw assembly; and two second rotating shafts disposed in a second direction, passing through the disc base and rotatably connected to the base plate, with a second lower gear at one end located inside the transmission cavity meshing with the second turntable, and a second upper gear at one end located outside the transmission cavity meshing with the first rack of the second claw assembly.

[0012] The rotational power of the first turntable is transmitted to the chuck seat via the first lower gear, the first rotating shaft, and the first upper gear in sequence. Similarly, the rotational power of the second turntable is transmitted to the chuck seat via the second lower gear, the second rotating shaft, and the second upper gear in sequence.

[0013] To illustrate the specific structure of the power unit, the design employs a first fixed rod, which is fixedly mounted on the disk base and hinged to the first power source; a first movable rod, which passes through the disk base and connects to the output end of the first power source and the first turntable; a second fixed rod, which is fixedly mounted on the disk base and hinged to the second power source; and a second movable rod, which passes through the disk base and connects to the output end of the second power source and the second turntable.

[0014] One end of the first power source is fixed to the disk base via the first fixed plate. The output end of the first power source is connected to the first movable rod, which is connected to the first turntable. When the first power source works, it converts the elongation of the output end of the first power source into the circular motion of the first turntable.

[0015] Similarly, one end of the second power source is fixed to the disk base via the second fixed plate, and the output end of the second power source is connected to the second movable rod. The second movable rod passes through the disk base and connects to the second turntable. When the second power source works, it converts the elongation of the output end of the second power source into the circular motion of the second turntable.

[0016] To illustrate the models used for the first and second power sources, this utility model adopts either a cylinder or a hydraulic cylinder for the first and second power sources.

[0017] The beneficial effects of this utility model are as follows: This utility model is a pneumatic chuck with external power and an external transmission mechanism. The transmission mechanism is set between two jaw assemblies, so the transmission mechanism does not occupy the space of the transmission cavity, reducing the thickness of the transmission cavity. The transmission mechanism can be placed in the space between two adjacent jaw assemblies. Since the jaw assembly itself has a certain thickness, the thickness of the transmission mechanism partially overlaps with the thickness of the jaw assembly. Thus, the overall thickness of the pneumatic chuck is smaller, the length of the remaining tail material after cutting is shorter, and raw materials can be saved. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is an exploded view of the base and the device;

[0020] Figure 2 This is a diagram showing the fit between the transmission mechanism, power unit, and base plate of this utility model.

[0021] In the diagram: 1-base plate, 2-disc base, 3-claw assembly, 31-first claw assembly, 32-second claw assembly, 33-slide rail, 34-claw base, 35-first rack, 36-clamping part, 4-power unit, 41-first fixed rod, 42-first power source, 43-first movable rod, 44-second fixed rod, 45-second power source, 46-second movable rod, 51-first turntable, 52-second turntable, 53-first rotating shaft, 54-first lower gear, 55-first upper gear, 56-second rotating shaft, 57-second lower gear, 58-second upper gear. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0023] like Figure 1-2As shown, this utility model is an externally powered pneumatic chuck, comprising: a base plate 1; a chuck seat 2 with a central hole, which is connected to the base plate 1 to form a transmission cavity; a plurality of jaw assemblies 3, which are arranged around the center of the chuck seat 2 on the outer side of the chuck seat; a plurality of power units 4, which are disposed on the outer side of the chuck seat 2 and located between two adjacent jaw assemblies 3; and a transmission mechanism, which is disposed in the transmission cavity and connects the output end of the power unit 4 and the input end of the jaw assembly 3.

[0024] In this design, the transmission mechanism is externally mounted and positioned between the two jaw assemblies. This reduces the space occupied by the transmission mechanism in the transmission cavity, thus reducing the thickness of the transmission cavity. The space between the two adjacent jaw assemblies can be used to house the transmission mechanism. Since the jaw assemblies themselves have a certain thickness, the thickness of the transmission mechanism partially overlaps with the thickness of the jaw assemblies. As a result, the overall thickness of the pneumatic chuck is smaller, resulting in a shorter length of the remaining material after cutting, which saves raw materials.

[0025] like Figure 1-2 As shown, to illustrate the specific structure of the jaw assembly, this utility model uses a jaw assembly 3 comprising: two first jaw assemblies 31 arranged opposite to each other in a first direction, which are slidably disposed on the outer side of the disk base 2; and two second jaw assemblies 32 arranged opposite to each other in a second direction, which are slidably disposed on the outer side 32 of the disk base 2; wherein the second direction and the first direction are perpendicularly arranged, and each of the first jaw assembly 31 and the second jaw assembly 32 includes: a slide rail 33, which is fixedly connected to the disk base 2; a jaw base 34, which is slidably connected to the slide rail 33, and a first rack 35 is provided on one side of the jaw base 34; and a clamping part 36 is provided at the end of the jaw base 34.

[0026] In this scheme, two first jaw assemblies are arranged opposite to each other, and two second jaw assemblies are arranged opposite to each other. Both the first jaw assembly and the second jaw assembly include: a slide rail fixed on the disc base, a jaw seat slidably arranged on the slide rail, and a clamping part provided at the end of the jaw seat. In this way, the clamping of the pipe can be achieved by the clamping parts arranged opposite to each other.

[0027] like Figure 1-2As shown, to illustrate the specific structure of the transmission mechanism, this utility model employs a transmission mechanism comprising: a first turntable 51 and a second turntable 52 rotatably disposed in the transmission cavity and arranged vertically; two first rotating shafts 53 disposed in a first direction, passing through the disc base 2 and rotatably connected to the base plate 1, with a first lower gear 54 disposed at one end inside the transmission cavity and meshing with the first turntable 51, and a first upper gear 55 disposed at one end outside the transmission cavity and meshing with the first rack 35 of the first claw assembly 31; and two second rotating shafts 56 disposed in a second direction, passing through the disc base 2 and rotatably connected to the base plate 1, with a second lower gear 57 disposed at one end inside the transmission cavity and meshing with the second turntable 52, and a second upper gear 58 disposed at one end outside the transmission cavity and meshing with the first rack 35 of the second claw assembly 32.

[0028] The rotational power of the first turntable is transmitted to the chuck seat via the first lower gear, the first rotating shaft, and the first upper gear in sequence. Similarly, the rotational power of the second turntable is transmitted to the chuck seat via the second lower gear, the second rotating shaft, and the second upper gear in sequence.

[0029] like Figure 1-2 As shown, to illustrate the specific structure of the power unit, the scheme includes: a first fixed rod 41, which is fixedly mounted on the disk base 2 and hinged to the first power source 42; a first movable rod 43, which passes through the disk base 2 and connects to the output end of the first power source 42 and the first turntable 51; a second fixed rod 44, which is fixedly mounted on the disk base 2 and hinged to the second power source 45; and a second movable rod 46, which passes through the disk base 2 and connects to the output end of the second power source 45 and the second turntable 52.

[0030] One end of the first power source is fixed to the disk base via the first fixed plate. The output end of the first power source is connected to the first movable rod, which is connected to the first turntable. When the first power source works, it converts the elongation of the output end of the first power source into the circular motion of the first turntable.

[0031] Similarly, one end of the second power source is fixed to the disk base via the second fixed plate, and the output end of the second power source is connected to the second movable rod. The second movable rod passes through the disk base and connects to the second turntable. When the second power source works, it converts the elongation of the output end of the second power source into the circular motion of the second turntable.

[0032] like Figure 1-2 As shown, in order to illustrate the models used for the first power source and the second power source, this utility model adopts a cylinder or a hydraulic cylinder for the first power source 42 and the second power source 45.

[0033] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

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