Gas storage elliptical cylinder forming device

Abstract

The utility model provides a gas storage elliptical cylinder forming device, and relates to the technical field of elliptical tubes. The device comprises a lower die and an upper die, two pressing grooves are formed in the top face of the lower die and the bottom face of the upper die respectively, an inner supporting block is arranged on the side portion of the lower die in a sliding mode, the pressing grooves are horizontally formed and transversely penetrate through the lower die or the upper die where the pressing grooves are located, the sections of the pressing grooves are in a semi-oval shape, the shape and size of the pressing grooves correspond to the outer wall of an oval cylinder, and the two pressing grooves are vertically symmetrical. The inner supporting block corresponds to the inner wall of the oval cylinder in shape and size, and the inner supporting block and the pressing groove of the lower die are coaxially arranged and slide along the axis of the pressing groove. The utility model has the advantages of lower cost, no requirement on the skill of operators and high production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of elliptical tubes, in particular to a gas storage elliptical tube forming device. Background Art

[0002] Existing gas storage devices are generally designed to be elliptical due to space and appearance requirements. In the prior art, smaller lengths are directly processed and formed by mechanical processing such as wire cutting, CNC milling cutters, etc. This technology is suitable for lengths of about 500 mm. Thin plate bending forming This technology is achieved by bending the thin plate multiple times and then comparing and correcting the shape to achieve forming.

[0003] At present, the direct processing method has low operating efficiency and high processing cost. The shortcomings of the thin plate bending method are mainly the high skill requirements for workers, the need for many molds, the high cost, and the need to weld the joints at the end. The welds are prone to defects, resulting in poor sealing. Utility Model Content

[0004] The utility model aims to develop a gas storage elliptical cylinder forming device which has low cost, no requirement on operator skills and high production efficiency.

[0005] The utility model is achieved through the following technical solutions:

[0006] An air storage elliptical cylinder forming device, comprising:

[0007] Lower die and upper die;

[0008] Two pressing grooves are respectively opened on the top surface of the lower die and the bottom surface of the upper die;

[0009] An inner support block is slidably arranged on the side of the lower mold;

[0010] The pressing groove is horizontally opened and horizontally penetrates the lower die or the upper die, the cross section of the pressing groove is semi-elliptical and the shape and size correspond to the outer wall of the elliptical cylinder, and the two pressing grooves are symmetrical up and down;

[0011] The shape and size of the inner support block correspond to the inner wall of the elliptical cylinder. The inner support block is coaxially arranged with the pressing groove of the lower mold and slides along the axis thereof.

[0012] Optionally, two detachable baffles are provided in the pressing groove, the two baffles in the pressing grooves are located opposite to each other, and the height of the baffles is adapted to the thickness of the elliptical cylinder.

[0013] Optionally, a second filling plate is provided at the bottom of the baffle, and the second filling plate is detachably connected to the pressing groove.

[0014] Optionally, a limiting groove cooperating with the second filling plate is provided in the pressing groove, the limiting groove is opened along the inner wall of the pressing groove, and the surface where the track of the limiting groove is opened is perpendicular to the axis of the pressing groove.

[0015] Optionally, a plurality of triangular support plates are provided on one side of the baffle away from the middle of the two baffles, and the support plates are connected to the side walls of the baffle and the second filling plate.

[0016] Optionally, a plurality of limiting grooves are arranged at equal intervals in the pressing groove, the second filling plates at the bottom of the two baffles are arranged in two of the limiting grooves, and the first filling plates are arranged in the remaining limiting grooves.

[0017] Optionally, the first filling plate and the second filling plate have the same structure, and their shapes are adapted to the limiting groove. After the first filling plate and the second filling plate are installed in the limiting groove, their outer surfaces are on the same plane as the inner wall of the pressing groove.

[0018] Optionally, magnets that attract each other are respectively provided on the inner end surface of the limiting groove and in the first filling plate and the second filling plate.

[0019] Optionally, top blocks are respectively provided at both ends of the inner support block, and the end of the top block connected to the inner support block is in an elliptical shape that matches the inner support block. The top block has a reducing structure with a size gradually decreasing in the direction away from the inner support block. A push rod is connected to the end of the top block on the side of the inner support block away from the lower mold, and the push rod is connected to a driving source.

[0020] Optionally, the lower die and the upper die cooperate with a bending machine, the lower die is fixed on a working table of the bending machine, the top of the upper die is configured to be a structure that cooperates with a blade installation position of the bending machine, and the upper die is bolted to the blade installation position of the bending machine.

[0021] The beneficial effects of the utility model are:

[0022] The utility model has a simple structure, can be used in conjunction with a bending machine, has low cost, is directly extruded and formed, has high production efficiency, and has no requirement on the skills of operators. Since the cylinder can be directly extruded and formed, no weld will appear on the elliptical cylinder, and the sealing performance is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application 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 application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the structure of the utility model;

[0025] Figure 2 It is a structural schematic diagram of the lower mold and the inner support block;

[0026] Figure 3 It is a schematic diagram of the structure of the limit component.

[0027] Figure numerals: 1. upper die; 2. lower die; 3. pressing groove; 4. elliptical cylinder cavity; 5. limiting assembly; 51. second filling plate; 52. baffle plate; 53. support plate; 6. inner support block; 7. top block; 8. push rod; 9. first filling plate; 10. limiting groove. DETAILED DESCRIPTION

[0028] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0032] like Figures 1 to 3 As shown, the utility model discloses a gas storage elliptical cylinder forming device, including a lower die 2 and an upper die 1, the lower die 2 is fixed on the work surface, and the upper die 1 is connected to the lifting drive structure. In order to save costs, the lower die 2 and the upper die 1 can be matched with a bending machine, the lower die 2 is fixed on the work surface of the bending machine, and the top of the upper die 1 is set to a structure that matches the installation position of the bending machine blade, and the upper die 1 is fixed to the installation position of the bending machine blade by bolts.

[0033] The top surface of the lower mold 2 and the bottom surface of the upper mold 1 are both provided with oppositely positioned pressing grooves 3, which are horizontally opened and transversely penetrate the lower mold 2 or the upper mold 1, and the cross section of the pressing groove 3 is semi-elliptical, and the two pressing grooves 3 are symmetrical up and down.

[0034] The shape and size of the groove 3 correspond to the outer wall of the elliptical cylinder. After the upper die 1 descends and contacts the lower die 2, the two grooves 3 cover each other to form an elliptical cylinder cavity 4 (a cylinder with an elliptical cross-section), and the shape of the cylinder cavity corresponds to the outer wall of the elliptical cylinder.

[0035] A plurality of relatively positioned limiting grooves 10 are respectively provided in the pressing groove 3 of the lower mold 2 and the upper mold 1. The limiting grooves 10 are opened along the inner wall of the pressing groove 3. The surface where the limiting grooves 10 are opened is perpendicular to the axis of the elliptical cylinder cavity 4. The plurality of limiting grooves 10 are arranged at equal intervals.

[0036] Two of the limiting grooves 10 in the lower mold 2 and the upper pressing groove 3 are provided with limiting components 5, and the remaining limiting grooves 10 are provided with first filling plates 9. The first filling plates 9 play a role of filling the limiting grooves 10 when the limiting components 5 are not installed in the limiting grooves 10.

[0037] The shape of the first filling plate 9 is adapted to the limiting groove 10. After the first filling plate 9 is inserted into the limiting groove 10, the outer surface of the first filling plate 9 is on the same plane as the inner wall of the pressing groove 3. The inner end surface of the limiting groove 10 and the first filling plate 9 are respectively provided with magnets that attract each other. The first filling plate 9 is inserted into the limiting groove 10, and the first filling plate 9 is engaged with the limiting groove 10. At the same time, the first filling plate 9 is fixed in the limiting groove 10 through the adsorption of the magnets on the first filling plate 9 and the limiting groove 10. When removing the limiting plate, use a suction cup to adsorb the surface of the first filling plate 9 and pull it out.

[0038] The spacing between the two limiting components 5 in the pressing groove 3 corresponds to the length of the elliptical cylinder, and the spacing between the two limiting components 5 is not less than the length of the elliptical cylinder, and the elliptical cylinder is formed between the two limiting components 5. The limiting component 5 includes a second filling plate 51 having the same structure as the first filling plate 9, and a magnet is also arranged inside the second filling plate 51. A baffle 52 is arranged on the outer surface of the second filling plate 51, and the baffle 52 is vertically arranged and arranged along one end of the outer surface of the second filling plate 51, and the height of the baffle 52 is adapted to the thickness of the elliptical cylinder. A plurality of triangular support plates 53 are arranged on one side of the baffle 52 away from the middle of the two limiting components 5, and the support plates 53 are connected to the side wall of the baffle 52 and the second filling plate 51.

[0039] The side of the lower mold 2 is provided with an inner support block 6, the cross section of the inner support block 6 is elliptical, and the shape and size of its outer wall correspond to the inner wall of the elliptical cylinder. The inner support block 6 and the two pressing grooves 3 form an elliptical cylinder cavity 4 in a coaxial state, and the inner support block 6 can slide into the elliptical cylinder cavity 4 along its axial direction.

[0040] A top block 7 is provided at both ends of the inner support block 6. The end portion where the top block 7 is connected to the inner support block 6 is elliptical and adapted to the inner support block 6. The top block 7 is a reduced diameter structure with a size gradually decreasing in the direction away from the inner support block 6, and the outer wall of the top block 7 is an arc surface.

[0041] A push rod 8 is connected to the end of the top block 7 on the side of the inner support block 6 away from the lower mold 2. The push rod 8 is connected to a driving source. The driving source can be a hydraulic cylinder, an air cylinder or other linear driving equipment such as a linear slide. The operation of the driving source drives the push rod 8 to slide, and the push rod 8 drives the inner support block 6 and the two top blocks 7 to slide into the elliptical cylindrical cavity 4 formed by the two pressure grooves 3.

[0042] When forming an elliptical cylinder, place the round tube into the groove 3 of the lower die 2 and place the round tube between the two limiting components 5. Under the action of gravity, the round tube will be in the middle of the groove 3. The upper die 1 is pressed down until it contacts the lower die 2. The two grooves 3 are covered to squeeze the round tube into an elliptical cylinder. The upper die 1 and the lower die 2 remain in contact for one minute. During this process, the inner support block 6 slides forward into the elliptical cylinder and gradually passes through the elliptical cylinder. Then the inner support block 6 slides in the reverse direction to enter the elliptical cylinder again and passes through the elliptical cylinder again to achieve the shaping of the elliptical cylinder. After the upper die 1 and the lower die 2 are fitted and the two grooves 3 are covered, the two baffles 52 in the two grooves 3 enclose two elliptical annular structures. The thickness of the annular structure is adapted to the thickness of the elliptical cylinder. The inner support block 6 can pass through the two annular structures during the sliding process in the elliptical cylinder. The two annular structures limit the elliptical cylinder to prevent the elliptical cylinder from being pushed out of the lower die 2 and the upper die 1 by the inner support block 6. After the inner support block 6 slides away from the elliptical cylinder, the upper mold 1 rises to take out the formed elliptical cylinder.

[0043] The utility model has a simple structure, can be used in conjunction with a bending machine, has low cost, is directly extruded and formed, has high production efficiency, and has no requirement on the skills of operators. Since the cylinder can be directly extruded and formed, no weld will appear on the elliptical cylinder, and the sealing performance is good.

[0044] The above embodiments are only preferred embodiments of the present utility model and are not limitations on the technical solutions of the present utility model. Any technical solution that can be implemented on the basis of the above embodiments without creative work should be deemed to fall within the scope of protection of the patent of the present utility model.

Claims

1. A gas storage elliptical cylinder forming device, characterized in that: include: Lower die and upper die; Two pressing grooves are respectively opened on the top surface of the lower die and the bottom surface of the upper die; An inner support block is slidably arranged on the side of the lower mold; The pressing groove is horizontally opened and horizontally penetrates the lower die or the upper die, the cross section of the pressing groove is semi-elliptical and the shape and size correspond to the outer wall of the elliptical cylinder, and the two pressing grooves are symmetrical up and down; The shape and size of the inner support block correspond to the inner wall of the elliptical cylinder. The inner support block is coaxially arranged with the pressing groove of the lower mold and slides along the axis thereof.

2. The gas storage elliptical cylinder forming device according to claim 1, characterized in that: Two detachable baffles are arranged in the pressing groove, the two baffles in the pressing grooves are opposite to each other, and the height of the baffles is adapted to the thickness of the elliptical cylinder.

3. The gas storage elliptical cylinder forming device according to claim 2, characterized in that: A second filling plate is provided at the bottom of the baffle plate, and the second filling plate is detachably connected to the pressing groove.

4. The gas storage elliptical cylinder forming device according to claim 3, characterized in that: A limiting groove matched with the second filling plate is provided in the pressing groove, the limiting groove is opened along the inner wall of the pressing groove, and the surface where the track of the limiting groove is opened is perpendicular to the axis of the pressing groove.

5. The gas storage elliptical cylinder forming device according to claim 4, characterized in that: A plurality of triangular support plates are arranged on one side of the baffle away from the middle of the two baffles, and the support plates are connected to the side wall of the baffle and the second filling plate.

6. The gas storage elliptical cylinder forming device according to claim 5, characterized in that: A plurality of limiting grooves are arranged at equal intervals in the pressing groove, the second filling plates at the bottom of the two baffles are arranged in two of the limiting grooves, and the first filling plates are arranged in the remaining limiting grooves.

7. The gas storage elliptical cylinder forming device according to claim 6, characterized in that: The first filling plate and the second filling plate have the same structure and their shapes are adapted to the limiting groove. After the first filling plate and the second filling plate are installed in the limiting groove, their outer surfaces are on the same plane as the inner wall of the pressing groove.

8. The gas storage elliptical cylinder forming device according to claim 7, characterized in that: The inner end surface of the limiting groove and the first filling plate and the second filling plate are respectively provided with magnets that attract each other.

9. The gas storage elliptical cylinder forming device according to any one of claims 1 to 8, characterized in that: The inner support block is provided with a top block at both ends respectively. The end of the top block connected to the inner support block is in an elliptical shape adapted to the inner support block. The top block is in a reduced diameter structure with a size gradually decreasing in the direction away from the inner support block. The end of the top block on the side of the inner support block away from the lower mold is connected to a push rod, and the push rod is connected to a driving source.

10. The gas storage elliptical cylinder forming device according to any one of claims 1 to 8, characterized in that: The lower die and the upper die cooperate with the bending machine, the lower die is fixed on the working table of the bending machine, the top of the upper die is configured to cooperate with the installation position of the blade of the bending machine, and the upper die is bolted to the installation position of the blade of the bending machine.

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