Mechanical rolling flaring machine for steel pipes

Abstract

The utility model relates to the technical field of steel pipe machining equipment, and discloses a steel pipe mechanical rolling flaring machine which comprises a machine table, the top of the machine table is fixedly connected with a supporting wall, one side of the supporting wall is fixedly connected with two sets of positioning rods, and the surfaces of the positioning rods are slidably connected with sliding walls. And one side of the sliding wall is fixedly connected with a fixing disc, and one side of the fixing disc is fixedly connected with a pressing roller. According to the mechanical rolling flaring machine for the steel pipe, through the arrangement of the telescopic assembly, when the flaring head needs to be replaced, a clamping block is extruded, so that a supporting column is shrunk inwards, then a spring is extruded to be stressed and shrunk, the clamping block falls off from a clamping groove in the flaring head, the abraded flaring head is pulled out, and then a new flaring head is inserted to reach a proper position; the clamping block is clamped in the clamping groove of the flaring head through the pressure of the extrusion spring, so that the effect of conveniently replacing the flaring head is achieved, the situation that the flaring head is seriously abraded to seriously affect steel pipe flaring is prevented, the service life of the flaring machine is prolonged, and convenience of the flaring machine is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe processing equipment, in particular to a steel pipe mechanical roller expanding machine. Background Art

[0002] The expanding machine, also known as the tube expander, is a common metal forming equipment. Its function is to expand or shape the inner cavity of the tube by hammering or expanding, so that the pipe has a certain diameter change, curvature change, deformation and other shapes. The expanding machine is widely used in the manufacture and processing of various pipes and seals in the fields of food, petroleum, chemical industry, construction, medicine, home furnishing, etc. The principle of the expanding machine is to place the pipe or plate in the mold through mechanical fittings or hydraulic mechanical parts, and then apply a certain pressure or impact force inside the machine to make the pipe or plate expand and deform axially symmetrically or shaped, thereby realizing the function of processing into the corresponding shape of the material. The steel pipe mechanical roller expanding machine is a mechanical equipment used to process steel pipes, mainly used to expand or compress the diameter and wall thickness of steel pipes to meet the needs of different engineering projects or products.

[0003] It is not easy to conveniently replace the expanding head of the existing steel pipe mechanical roller expanding machine during actual use. When the expanding head is severely worn, it is easy to affect the expanding of the steel pipe.

[0004] After searching the existing patents: a steel pipe expanding machine (publication number: CN212634073U), including a frame, a tightening device and an expanding device are respectively provided on both sides of the length direction of the frame, and a clamping device for clamping and fixing the steel pipe is provided between the tightening device and the expanding device; the expanding device includes an expanding seat slidably arranged on the frame along the length direction of the frame and a driving member for driving the expanding seat to move, a support tube is fixed on the side of the expanding seat close to the clamping device, and a plurality of expanding templates are hinged on the outer peripheral side of the side of the supporting tube close to the clamping device and are distributed at intervals, each expanding template is swingably arranged on the supporting tube, and a swinging assembly for driving each expanding template to move is provided on the supporting tube. The utility model discloses a steel pipe expanding machine with simple structure, convenient operation, cost saving, and convenient for changing the expanding angle of the end of the steel pipe.

[0005] Although the above patent has achieved a steel pipe expanding machine with simple structure, convenient operation, cost saving, and convenience in changing the expanding angle of the steel pipe end, it is not convenient for buffering and shock absorption. The lifting hydraulic rod directly acts on the surface of the steel pipe when pressing down, which can easily cause damage to the surface of the steel pipe. At the same time, the steel pipe is easily stuck on the surface of the pressing block when clamped.

[0006] Therefore, it is necessary to invent a steel pipe mechanical roller expanding machine to solve the above problems. Utility Model Content

[0007] 1. Technical issues to be solved

[0008] The technical problem solved by the utility model is to provide a steel pipe mechanical roller expanding machine which is highly practical, can be simply operated and has a relatively simple structure, thereby solving the problem of the difficulty in conveniently replacing the expanding head and buffering and shock absorption proposed in the above-mentioned background technology.

[0009] (II) Technical solution

[0010] To achieve the above purpose, the utility model is implemented through the following technical scheme: a steel pipe mechanical roller expanding machine comprises a machine platform, the top of the machine platform is fixedly connected with a supporting wall, one side of the supporting wall is fixedly connected with two groups of positioning rods, the surface of the positioning rod is slidably connected with a sliding wall, one side of the sliding wall is fixedly connected with a fixed plate, one side of the fixed plate is fixedly connected with a pressing roller, one end of the pressing roller is threadedly connected with a supporting joint, the interior of the supporting joint is sleeved with a telescopic component, both ends of the telescopic component are fixedly connected with a clamping block, the surface of the clamping block is clamped with an expanding head, the top of the machine platform is fixedly connected with a supporting frame, the top of the supporting frame is fixedly connected with a lifting hydraulic rod, the bottom of the lifting hydraulic rod is fixedly connected with a connecting block, the bottom of the connecting block is threadedly connected with an upper pressing block, the top of the machine platform is threadedly connected with a lower pressing block, the interior of the upper pressing block and the lower pressing block are fixedly connected with two groups of buffer assemblies, and the top of the buffer assembly is fixedly connected with a receiving piece.

[0011] As a further solution of the utility model, the telescopic assembly includes a fixed sleeve sleeved inside the support joint, two groups of support columns are slidably connected inside the fixed sleeve, and one end of the support column is fixedly connected to a compression spring, which facilitates the connection of the support.

[0012] As a further solution of the utility model, the buffer assembly includes a buffer hydraulic column fixedly connected to the inside of the lower pressure block, and a buffer spring is sleeved on the surface of the buffer hydraulic column to facilitate buffering pressure.

[0013] As a further solution of the utility model, a hydraulic push rod is fixedly connected to one side of the support wall, and an opening matched with the hydraulic push rod is opened on the surface of the support wall, and the opening facilitates the extension and retraction of the hydraulic push rod.

[0014] As a further solution of the utility model, sliding holes adapted to the positioning rods are provided at both ends of the sliding wall, and stress blocks are fixedly connected to both sides of the supporting wall, so that the stress blocks are easy to support.

[0015] As a further solution of the utility model, a protective plate is fixedly connected to one side of the support frame, and a control panel is fixedly connected to the front of the machine, and the control panel is convenient for adjustment and control.

[0016] As a further solution of the utility model, the surfaces of the machine platform and the lower pressing block are both provided with threaded holes, and threaded bolts are passed through the inside of the threaded holes, so that the threaded bolts are convenient for fixed connection.

[0017] (III) Beneficial effects

[0018] The utility model provides a steel pipe mechanical roller expanding machine, which has the following beneficial effects:

[0019] 1. The mechanical roller expanding machine for steel pipes, through the setting of the telescopic component, when the expanding head needs to be replaced, the clamping block is squeezed to make the support column shrink inward, and then the squeezing spring is forced to shrink, so that the clamping block falls off from the clamping slot on the expanding head, and then the worn expanding head is pulled out, and then a new expanding head is inserted to a suitable position. The clamping block uses the pressure of the squeezing spring to be stuck in the clamping slot of the expanding head, so as to achieve the effect of convenient replacement of the expanding head, prevent the wear of the expanding head from seriously affecting the expanding of the steel pipe, and improve the service life and convenience of the expanding machine.

[0020] 2. The steel pipe mechanical roller expanding machine, through the setting of the buffer component, when it is necessary to clamp the steel pipe to be expanded, the steel pipe is placed on the receiving piece on the lower pressure block, and then the lifting hydraulic rod drives the upper pressure block downward, and then the downward pressure, through the reaction force of contacting the surface of the steel pipe, squeezes the buffer hydraulic column, so that the buffer hydraulic column contracts, and the buffer spring deforms to generate elastic force, thereby achieving the effect of buffering and shock absorption, avoiding the lifting hydraulic rod from directly acting on the surface of the steel pipe and causing damage to the surface of the steel pipe, and at the same time facilitating separation from the surface of the pressure block, thereby improving the quality of the steel pipe and the stability of clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the sliding wall structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the telescopic assembly structure of the utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the buffer component of the utility model.

[0026] In the figure: 1. machine table; 2. support wall; 3. positioning rod; 4. sliding wall; 5. fixed plate; 6. pressure roller; 7. support joint; 8. telescopic component; 801. fixed sleeve; 802. support column; 803. extrusion spring; 9. clamping block; 10. expansion head; 11. support frame; 12. lifting hydraulic rod; 13. connecting block; 14. upper pressure block; 15. lower pressure block; 16. buffer component; 1601. buffer hydraulic column; 1602. buffer spring; 17. receiving plate; 18. hydraulic push rod; 19. stress block; 20. protective plate; 21. control panel; 22. threaded bolt. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figures 1 to 5 The utility model provides a technical solution: a steel pipe mechanical roller expanding machine, including a machine platform 1, a support wall 2 is fixedly connected to the top of the machine platform 1, two groups of positioning rods 3 are fixedly connected to one side of the support wall 2, the surface of the positioning rod 3 is slidably connected to a sliding wall 4, a fixed plate 5 is fixedly connected to one side of the sliding wall 4, a pressure roller 6 is fixedly connected to one side of the fixed plate 5, one end of the pressure roller 6 is threadedly connected to a support joint 7, a telescopic component 8 is sleeved inside the support joint 7, and the setting of the telescopic component 8 can achieve the effect of convenient replacement of the expanding head 10, prevent the expansion head 10 from being worn and seriously affecting the expansion of the steel pipe, and improve the service life and convenience of the expanding machine, both ends of the telescopic component 8 are fixedly connected to a clamping block 9, the clamping block 9 The surface is clamped with an expansion head 10, the top of the machine 1 is fixedly connected with a support frame 11, the top of the support frame 11 is fixedly connected with a lifting hydraulic rod 12, the bottom of the lifting hydraulic rod 12 is fixedly connected with a connecting block 13, the bottom of the connecting block 13 is threadedly connected with an upper pressing block 14, the top of the machine 1 is threadedly connected with a lower pressing block 15, and the upper pressing block 14 and the lower pressing block 15 are both fixedly connected with two groups of buffer components 16 inside. Through the setting of the buffer component 16, the effect of buffering and shock absorption is achieved, and the lifting hydraulic rod 12 is prevented from directly acting on the surface of the steel pipe and causing damage to the surface of the steel pipe. At the same time, it is convenient to detach from the surface of the pressing block, thereby improving the quality of the steel pipe and the stability of clamping. The top of the buffer component 16 is fixedly connected with a receiving piece 17;

[0029] The telescopic assembly 8 includes a fixed sleeve 801 sleeved inside the support joint 7, and two groups of support columns 802 are slidably connected inside the fixed sleeve 801. One end of the support column 802 is fixedly connected to a compression spring 803. The configuration of the compression spring 803 plays a role of connecting support.

[0030] The buffer assembly 16 includes a buffer hydraulic column 1601 fixedly connected to the inside of the lower pressing block 15, and a buffer spring 1602 is sleeved on the surface of the buffer hydraulic column 1601. The buffer spring 1602 plays a role of buffering pressure.

[0031] A hydraulic push rod 18 is fixedly connected to one side of the support wall 2, and an opening adapted to the hydraulic push rod 18 is provided on the surface of the support wall 2. The setting of the opening facilitates the extension and retraction of the hydraulic push rod 18;

[0032] Both ends of the sliding wall 4 are provided with sliding holes adapted to the positioning rod 3, and both sides of the supporting wall 2 are fixedly connected with stress blocks 19, which play a supporting role through the setting of the stress blocks 19;

[0033] A protective plate 20 is fixedly connected to one side of the support frame 11, and a control panel 21 is fixedly connected to the front of the machine 1. The setting of the control panel 21 plays a role in adjustment and control;

[0034] The surfaces of the machine platform 1 and the lower pressing block 15 are both provided with threaded holes, and threaded bolts 22 penetrate through the threaded holes. The threaded bolts 22 provide a fixed connection.

[0035] In the utility model, the working steps of the device are as follows:

[0036] Step 1: When the expansion head 10 needs to be replaced, squeeze the block 9 to make the support column 802 contract inward, and then squeeze the spring 803 to contract under force, so that the block 9 falls off from the card slot on the expansion head 10;

[0037] Step 2: Pull out the worn expansion head 10, and insert a new expansion head 10 until it reaches a suitable position. The clamping block 9 is clamped in the clamping groove of the expansion head 10 by the pressure of the extrusion spring 803;

[0038] The third step: when it is necessary to clamp the steel pipe to be expanded, place the steel pipe on the receiving piece 17 on the lower pressing block 15, and then lift the hydraulic rod 12 to drive the upper pressing block 14 downward, and then the downward pressure squeezes the buffer hydraulic column 1601 through the reaction force of the contact steel pipe surface, so that the buffer hydraulic column 1601 contracts and the buffer spring 1602 deforms to generate elastic force.

[0039] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0040] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel pipe mechanical roll expanding machine, comprising a machine platform (1), characterized in that: The top of the machine platform (1) is fixedly connected to a support wall (2), one side of the support wall (2) is fixedly connected to two groups of positioning rods (3), the surface of the positioning rods (3) is slidably connected to a sliding wall (4), one side of the sliding wall (4) is fixedly connected to a fixed plate (5), one side of the fixed plate (5) is fixedly connected to a pressure roller (6), one end of the pressure roller (6) is threadedly connected to a support joint (7), the interior of the support joint (7) is sleeved with a telescopic component (8), both ends of the telescopic component (8) are fixedly connected to a clamping block (9), the surface of the clamping block (9) is clamped The machine platform (1) has an expansion head (10), the top of the machine platform (1) is fixedly connected to a support frame (11), the top of the support frame (11) is fixedly connected to a lifting hydraulic rod (12), the bottom of the lifting hydraulic rod (12) is fixedly connected to a connecting block (13), the bottom of the connecting block (13) is threadedly connected to an upper pressing block (14), the top of the machine platform (1) is threadedly connected to a lower pressing block (15), the interiors of the upper pressing block (14) and the lower pressing block (15) are fixedly connected to two groups of buffer components (16), and the top of the buffer component (16) is fixedly connected to a receiving plate (17).

2. The steel pipe mechanical roll expanding machine according to claim 1, characterized in that: The telescopic assembly (8) comprises a fixed sleeve (801) sleeved inside the support joint (7), two groups of support columns (802) are slidably connected inside the fixed sleeve (801), and one end of the support column (802) is fixedly connected to a compression spring (803).

3. The steel pipe mechanical roll expanding machine according to claim 1, characterized in that: The buffer assembly (16) comprises a buffer hydraulic column (1601) fixedly connected to the interior of the lower pressure block (15), and a buffer spring (1602) is sleeved on the surface of the buffer hydraulic column (1601).

4. The steel pipe mechanical roll expanding machine according to claim 1, characterized in that: A hydraulic push rod (18) is fixedly connected to one side of the support wall (2), and an opening matching the hydraulic push rod (18) is provided on the surface of the support wall (2).

5. The steel pipe mechanical roll expanding machine according to claim 1, characterized in that: Both ends of the sliding wall (4) are provided with sliding holes matched with the positioning rod (3), and both sides of the supporting wall (2) are fixedly connected with stress blocks (19).

6. The steel pipe mechanical roll expanding machine according to claim 1, characterized in that: A protective plate (20) is fixedly connected to one side of the support frame (11), and a control panel (21) is fixedly connected to the front of the machine platform (1).

7. The steel pipe mechanical roll expanding machine according to claim 1, characterized in that: The surfaces of the machine platform (1) and the lower pressing block (15) are both provided with threaded holes, and threaded bolts (22) penetrate the interior of the threaded holes.

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