A clamping device

Abstract

The embodiment of the present invention relates to a clamping device for the inner side of a shell flange, which includes a flange, a support shaft, a transmission shaft, a pressure head, a fixed plate, a movable plate, a connecting rod, a light rod and a pressure head seat; the fixed plate, the movable plate and the pressure head are connected in sequence, the fixed plate and the movable plate are connected by the light rod; the movable plate and the pressure head are connected by the connecting rod; the pressure head seat is inserted on the flange; the pressure head is embedded in the open end of the pressure head seat, and the support shaft passes through the flange; the transmission shaft and the support shaft are coaxial cylinders, and the transmission shaft passes through the support shaft; one end of the connecting rod is rotatably connected to the movable plate, and the other end is rotatably connected to the pressure head. The present invention designs two clamping devices, sleeves the semi-hollow cylinder on the two clamping devices, the movable plate moves downward, and then the pressure head will also move downward along the oblique groove, and then the pressure head will press the semi-hollow cylinder, thereby achieving clamping.

Description

Technical Field

[0001] The invention relates to a clamping device, in particular to a housing flange inner side clamping device. Background Art

[0002] At present, in the processing of aluminum alloy thin-walled cylinders, oxidation spray painting is required to make all parts of the cylinder have an oxide layer to prevent corrosion. After the painting is completed, it needs to be dried. Since the surface of the cylinder has not been completely solidified, the surface of the cylinder cannot be touched during the lifting process, so a clamping device is needed. Summary of the invention

[0003] The embodiment of the present invention provides a clamping device which ensures that the surface of the cylinder will not be touched during the lifting process through structural innovation.

[0004] To achieve the above object, the present invention provides a clamping device, which includes a flange, a support shaft, a transmission shaft, a pressure head, a fixed plate, a movable plate, a connecting rod, a polished rod and a pressure head seat;

[0005] The fixed plate, the movable plate, and the pressure head are connected in sequence, the fixed plate and the movable plate are connected by the polished rod; the movable plate and the pressure head are connected by the connecting rod;

[0006] The flange comprises a first cylinder at the top and a second cylinder at the bottom; the diameter of the first cylinder is smaller than the diameter of the second cylinder;

[0007] The pressure head seat is a U-shaped body, including a corresponding first plug-in portion and a second plug-in portion, the first plug-in portion convex portion and the second plug-in portion convex portion are inserted on the first cylinder; the pressure head is embedded in the open end of the pressure head seat, and the top of the pressure head is rotatably connected to the bottom of the connecting rod;

[0008] The support shaft passes through the flange;

[0009] The transmission shaft and the support shaft are coaxial cylinders, and the transmission shaft passes through the support shaft;

[0010] One end of the connecting rod is rotatably connected to the movable plate, and the other end is rotatably connected to the pressure head.

[0011] Optional,

[0012] A first cylindrical hole is provided in the middle of the flange for allowing the support shaft to pass through.

[0013] Optional,

[0014] The top surface of the support shaft is in contact with the bottom surface of the movable plate;

[0015] A second cylindrical hole is provided in the middle of the support shaft for the transmission shaft to pass through;

[0016] The second cylindrical hole diameter is smaller than the first cylindrical hole diameter.

[0017] Optional,

[0018] The transmission shaft comprises a threaded portion and a non-threaded portion;

[0019] The non-threaded portion passes through the second cylindrical hole in the support shaft, and the interface between the non-threaded portion and the threaded portion coincides with the plane where the top surface of the support shaft is located;

[0020] The threaded portion passes through the movable plate and the fixed plate;

[0021] The threaded portion is key-connected to the non-threaded portion.

[0022] Optional,

[0023] The fixed plate and the movable plate are both hexagonal, with three circular holes evenly arranged on the edges and a cylindrical hole in the middle;

[0024] A bearing is provided at the bottom of the movable plate, and the bearing passes through the transmission shaft, so that the threaded part and the non-threaded part rotate relative to each other.

[0025] Optional,

[0026] The polished rods are provided with three and pass through the circular holes on the fixed plate and the movable plate respectively;

[0027] One end of the polished rod is fixed to the top surface of the fixed plate by a first nut, and the other end of the polished rod is fixed to the bottom of the movable plate by a second nut.

[0028] Optional,

[0029] The clamping device comprises: a third nut;

[0030] The third nut is fixed in a cylindrical hole in the middle of the moving plate and passes through the threaded portion.

[0031] Optional,

[0032] The connecting rod, the pressure head seat and the pressure head are each provided with three;

[0033] The pressure head seats are evenly inserted on the flange, and the angle between two adjacent pressure head seats is 120 degrees.

[0034] The above technical solution has the following beneficial effects: the present invention designs two clamping devices, and after the two circular surfaces of the semi-hollow cylinder are respectively placed under the three pressure heads of the two clamping devices, the movable plate moves downward, and then the pressure head also moves downward along the oblique groove, and then the pressure head presses the semi-hollow cylinder to achieve clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative work.

[0036] Figure 1 It is a schematic diagram of the structure of a single pressing device of the present invention;

[0037] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0038] Figure 3 It is a schematic diagram of the rotating shaft structure of the present invention;

[0039] Figure 4 It is a schematic diagram of the structure of the movable plate of the present invention.

[0040] Explanation of symbols:

[0041] Flange-1, supporting shaft-2, transmission shaft-3, pressure head-4, fixed plate-5, movable plate-6, connecting rod-7, pressure head seat-8, polished rod-9, semi-hollow cylinder-10. DETAILED DESCRIPTION

[0042] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0043] At present, in the processing of aluminum alloy thin-walled cylinders, oxidation spray painting is required to make all parts of the cylinder have an oxide layer to prevent corrosion. After the painting is completed, it needs to be dried. Since the surface of the cylinder has not been completely solidified, the surface of the cylinder cannot be touched during the lifting process, so a clamping device is needed.

[0044] The present invention provides a pressing device, such as Figure 1 As shown, including:

[0045] Flange 1, support shaft 2, transmission shaft 3, pressure head 4, fixed plate 5, movable plate 6, connecting rod 7, polished rod 9 and pressure head seat 8;

[0046] The fixed plate 5, the movable plate 6, and the pressure head 4 are connected in sequence, the fixed plate 5 and the movable plate 6 are connected by the polished rod 9; the movable plate 6 and the pressure head 4 are connected by the connecting rod 7;

[0047] The flange 1 comprises a first cylinder at the top and a second cylinder at the bottom; the diameter of the first cylinder is smaller than the diameter of the second cylinder;

[0048] The pressure head seat 8 is a U-shaped body, including a corresponding first plug-in portion and a second plug-in portion, the first plug-in portion convex portion and the second plug-in portion convex portion are inserted on the first cylinder; the pressure head 4 is embedded in the open end of the pressure head seat 8, and the top of the pressure head 4 is rotatably connected to the bottom of the connecting rod 7;

[0049] The support shaft 2 passes through the flange 1;

[0050] The transmission shaft and the support shaft 2 are coaxial cylinders, and the transmission shaft 3 passes through the support shaft 2;

[0051] One end of the connecting rod 7 is rotatably connected to the movable plate 6 , and the other end is rotatably connected to the pressure head 4 .

[0052] The fixed plate 5, the movable plate 6, and the pressure head 4 are connected in sequence, the light rod 9 connects the fixed plate 5 and the movable plate 6, one end of the connecting rod 7 is rotatably connected to the movable plate 6, and the other end of the connecting rod 7 is rotatably connected to the pressure head 4, the pressure head 4 is embedded in the open end of the pressure head seat 8, and the pressure head seat 8 is inserted on the flange 1. When the movable plate 6 moves downward, the connecting rod 7 connected to the movable plate will drive the pressure head 4 to move downward, and the pressure head 4 will press the semi-hollow cylinder 10 placed on the flange 1, so that clamping can be achieved. The present invention adopts two such clamping devices, and the two circular sides of the semi-hollow cylinder 10 are respectively covered under the three pressure heads of the two clamping devices to achieve clamping, ensuring that during the lifting process, the semi-hollow cylinder will not fall off and damage the surface of the cylinder.

[0053] Optional,

[0054] A first cylindrical hole is provided in the middle of the flange 1 for the support shaft 2 to pass through.

[0055] like Figure 1 As shown, the flange is in the shape of a truncated cone, including a first cylinder at the top and a second cylinder at the bottom, the diameter of the first cylinder is smaller than the diameter of the second cylinder, and a first cylindrical hole is provided in the middle of the entire flange so that the support shaft 2 passes entirely through the first cylindrical hole.

[0056] Optional,

[0057] The top surface of the support shaft 2 is in contact with the bottom surface of the movable plate 6;

[0058] A second cylindrical hole is provided in the middle of the support shaft 2 for the transmission shaft 3 to pass through;

[0059] The second cylindrical hole diameter is smaller than the first cylindrical hole diameter.

[0060] like Figure 1 As shown, a second cylindrical hole is provided in the middle of the support shaft, and the diameter of the second cylindrical hole is smaller than the diameter of the first cylindrical hole, so that the transmission shaft 3 passes through the second cylindrical hole, and the rotation of the transmission shaft 3 will drive the movable plate to move up and down.

[0061] Optional,

[0062] The transmission shaft 3 includes a threaded portion and a non-threaded portion;

[0063] The non-threaded portion passes through the second cylindrical hole in the support shaft, and the interface between the non-threaded portion and the threaded portion coincides with the plane where the top surface of the support shaft is located;

[0064] The threaded portion passes through the movable plate and the fixed plate;

[0065] The threaded portion is key-connected to the non-threaded portion.

[0066] The transmission shaft 3 includes a threaded portion and a non-threaded transmission shaft portion; the threaded portion passes through the support shaft, and the non-threaded portion passes through the fixed plate and the movable plate and is key-connected with the threaded portion.

[0067] Figure 3 It is a schematic diagram of the rotating shaft structure of the present invention; as shown in the figure, the transmission shaft 3 is composed of a threaded part and a non-threaded part. The non-threaded part passes through the second cylindrical hole in the support shaft. After the threaded part passes through the movable plate and the fixed plate, the threaded part is key-connected with the non-threaded part. At this time, rotating the transmission shaft 3 will drive the movable plate 6 to move up and down. The up and down movement of the movable plate will drive the movement of the connecting rod, and the movement of the connecting rod will in turn drive the movement of the pressure head, so that the pressure head presses the semi-hollow cylinder.

[0068] Optional,

[0069] The fixed plate 5 and the movable plate 6 are both hexagonal, with three circular holes evenly arranged on the edges and a cylindrical hole in the middle;

[0070] A bearing is provided at the bottom of the movable plate 6, and the bearing passes through the transmission shaft 3, so that the threaded part and the non-threaded part can rotate relative to each other.

[0071] Figure 4 It is a schematic diagram of the movable plate structure of the present invention; as shown in the figure, the movable plate and the fixed plate are both hexagonal, and a bearing is provided at the bottom of the movable plate 6. When the non-threaded portion of the transmission shaft passes through the bearing and is key-connected with the threaded portion, the bearing can ensure relative rotation between the threaded portion and the non-threaded portion.

[0072] Optional,

[0073] The polished rods 9 are provided with three, respectively passing through the circular holes on the fixed plate 5 and the movable plate 6;

[0074] One end of the polished rod 9 is fixed to the top surface of the fixed plate 5 by a first nut, and the other end of the polished rod 9 is fixed to the bottom of the movable plate 6 by a second nut.

[0075] like Figure 1 As shown, three circular holes are evenly arranged on the edges of the movable plate 6 and the fixed plate 5, and three polished rods 9 respectively pass through the circular holes on the fixed plate 5 and the movable plate 6 to connect the fixed plate 5 and the movable plate 6, and are fixed with two nuts.

[0076] Optional,

[0077] The clamping device comprises: a third nut;

[0078] The third nut is fixed in a cylindrical hole in the middle of the moving plate and passes through the threaded portion.

[0079] like Figure 1 As shown, a third nut is provided, which is fixed in the cylindrical hole in the middle of the moving plate. Since the transmission shaft of the threaded part needs to pass through the moving plate, the third nut is fixed in the moving plate. It passes through the threaded part to ensure that the moving plate rotates up and down.

[0080] Optional,

[0081] The connecting rod 7, the pressure head seat 8 and the pressure head 4 are each provided with three;

[0082] The pressure head seats 8 are evenly inserted on the flange 1, and the angle between two adjacent pressure head seats 8 is 120 degrees.

[0083] like Figure 1 As shown, there are three connecting rods 7, pressure head seats 8 and pressure heads 4, and the angle between two adjacent pressure head seats is 120 degrees. The pressure head seats are evenly inserted on the flange plate, and there are oblique grooves between the pressure head and the pressure head seat. The movement of the pressure head will follow the oblique grooves on the pressure head seat. After the two circular sides of the semi-hollow cylinder 10 are respectively placed under the three pressure heads of the two clamping devices, the moving plate 6 moves downward, and then the pressure head 4 will also move downward along the oblique groove, and then the pressure head 4 will press the semi-hollow cylinder 10, thereby achieving the clamping of the cylinder.

[0084] The above technical solution has the following beneficial effects: the present invention designs two clamping devices, and after the two circular surfaces of the semi-hollow cylinder are respectively placed under the three pressure heads of the two clamping devices, the movable plate moves downward, and then the pressure head also moves downward along the oblique groove, and then the pressure head presses the semi-hollow cylinder to achieve clamping.

[0085] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, 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 clamping device, characterized in that: The device comprises a flange, a supporting shaft, a transmission shaft, a pressure head, a fixed plate, a movable plate, a connecting rod, a polished rod and a pressure head seat; The fixed plate, the movable plate, and the pressure head are connected in sequence, the fixed plate and the movable plate are connected by the polished rod; the movable plate and the pressure head are connected by the connecting rod; The flange comprises a first cylinder at the top and a second cylinder at the bottom; the diameter of the first cylinder is smaller than the diameter of the second cylinder; The pressure head seat is a U-shaped body, including a corresponding first plug-in portion and a second plug-in portion, the first plug-in portion convex portion and the second plug-in portion convex portion are inserted on the first cylinder; the pressure head is embedded in the open end of the pressure head seat, and the top of the pressure head is rotatably connected to the bottom of the connecting rod; The support shaft passes through the flange; The transmission shaft and the support shaft are coaxial cylinders, and the transmission shaft passes through the support shaft; One end of the connecting rod is rotatably connected to the movable plate, and the other end is rotatably connected to the pressure head.

2. The pressing device according to claim 1, characterized in that: A first cylindrical hole is provided in the middle of the flange for allowing the support shaft to pass through.

3. The pressing device according to claim 2, characterized in that: The top surface of the support shaft is in contact with the bottom surface of the movable plate; A second cylindrical hole is provided in the middle of the support shaft for the transmission shaft to pass through; The second cylindrical hole diameter is smaller than the first cylindrical hole diameter.

4. The pressing device according to claim 1, characterized in that: The transmission shaft comprises a threaded portion and a non-threaded portion; The non-threaded portion passes through the second cylindrical hole in the support shaft, and the interface between the non-threaded portion and the threaded portion coincides with the plane where the top surface of the support shaft is located; The threaded portion passes through the movable plate and the fixed plate; The threaded portion is key-connected to the non-threaded portion.

5. The pressing device according to claim 4, characterized in that: The fixed plate and the movable plate are both hexagonal, with three circular holes evenly arranged on the edges and a cylindrical hole in the middle; A bearing is provided at the bottom of the movable plate, and the bearing passes through the transmission shaft so that the threaded part and the non-threaded part can rotate relative to each other.

6. The pressing device according to claim 1, characterized in that: The polished rods are provided with three and pass through the circular holes on the fixed plate and the movable plate respectively; One end of the polished rod is fixed to the top surface of the fixed plate by a first nut, and the other end of the polished rod is fixed to the bottom of the movable plate by a second nut.

7. The pressing device according to claim 4, characterized in that: include: The third nut; The third nut is fixed in a cylindrical hole in the middle of the moving plate and passes through the threaded portion.

8. The pressing device according to claim 1, characterized in that: The connecting rod, the pressure head seat and the pressure head are each provided with three; The pressure head seats are evenly inserted on the flange, and the angle between two adjacent pressure head seats is 120 degrees.

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