Polishing device and polishing method for inner wall of cast iron pipe fitting

Abstract

The invention discloses a cast iron pipe fitting inner wall grinding device and method. The cast iron pipe fitting inner wall grinding device mainly comprises a bottom plate. And the supporting block is arranged above the bottom plate, so that stable support is provided for the whole device. And a lower clamping seat is arranged above the supporting block and is used for fixing and supporting the cast iron pipe fitting. In order to further enhance the stability and functionality of the device, a supporting plate is further arranged on the other side of the bottom plate, and through the arrangement of supporting legs and steering wheels, the device can be stably placed on the ground and is convenient to move. And through cooperative use of a threaded rod and a lower extrusion block and arrangement of an upper extrusion block, stable contact between the grinding roller and the inner wall of the cast iron pipe fitting is ensured, and the grinding efficiency and effect are improved. And the rubber pad is used for providing anti-skid and protection effects at the extrusion end, so that the cast iron pipe fitting and the equipment are protected. And due to the arrangement of the rotating handle, an operator can conveniently adjust the position of the lower extrusion block so as to adapt to cast iron pipe fittings with different sizes.

Description

Technical Field

[0001] The invention relates to the technical field of pipe fitting processing, and specifically relates to a device and a method for grinding the inner wall of a cast iron pipe fitting. Background Art

[0002] In the current field of cast iron pipe processing technology, the inner wall grinding process usually relies on stable and precise mechanical equipment to ensure the processing quality. In the process of implementing the embodiments of the present disclosure, we found that the traditional technology has at least the following problems: the traditional grinding equipment is usually complicated to operate, has poor stability, and has uneven clamping of the workpiece. These problems not only lead to low grinding efficiency, but also easily cause damage to the cast iron pipe. In addition, the movement and positioning of the equipment is also difficult, which affects the overall work efficiency. Summary of the invention

[0003] The object of the present invention is to provide a device and method for grinding the inner wall of a cast iron pipe fitting to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a device for grinding the inner wall of a cast iron pipe fitting, the device mainly comprising a base plate. A support block is arranged above the base plate to provide stable support for the entire device. A lower clamping seat is installed above the support block to fix and support the cast iron pipe fitting. In order to further enhance the stability and functionality of the device, a support plate is also arranged on the other side of the base plate. A mounting plate is installed above the support plate to carry other components.

[0005] Above the mounting plate, a telescopic cylinder is arranged, and its driving end extends downward to the bottom of the mounting plate. The driving end of the telescopic cylinder is connected to a lifting plate, and an upper extrusion block is installed at the lower end of the lifting plate. The bottom end of the upper extrusion block abuts against the inner wall of the cast iron pipe fitting to ensure that the pipe fitting remains stable during the grinding process. In this way, the inner wall of the cast iron pipe fitting can be effectively ground.

[0006] In order to achieve precise control and movement of the grinding roller, a sliding lifting frame is also provided on the support plate. A driving motor is installed above the sliding lifting frame, and its driving end extends into the inner side of the support plate. The driving motor is connected to a three-jaw chuck through a transmission mechanism, and the three-jaw chuck is used to clamp the grinding roller. The grinding roller is designed to penetrate the cast iron pipe fitting, and its grinding wall is tightly against the inner wall of the cast iron pipe fitting, thereby achieving efficient grinding of the inner wall.

[0007] Through ingenious design, the entire device achieves stable support and precise grinding of the inner wall of cast iron pipe fittings, greatly improving grinding efficiency and quality.

[0008] Specifically, the support legs are specially designed under the base plate, and the bottom of these support legs is equipped with steering wheels to facilitate the movement and positioning of the equipment. These steering wheels enable the entire device to be flexibly adjusted and moved in different working environments, thereby improving the convenience and efficiency of operation.

[0009] Furthermore, the structure of the bottom plate also includes a threaded rod, which runs through the entire thickness of the bottom plate, and a lower extrusion block is arranged at its upper end. The lower extrusion block is used in conjunction with the upper extrusion block to jointly complete the extrusion task of the workpiece. This design enables the upper and lower extrusion blocks to cooperate closely, ensuring the stability and reliability of the extrusion process.

[0010] In order to further improve the extrusion effect and protect the workpiece, rubber pads are installed at the extrusion ends of the lower and upper extrusion blocks. These rubber pads can not only prevent the workpiece from sliding during the extrusion process, but also play a certain buffering role and reduce damage to the workpiece surface. In addition, a rotating handle is specially designed at the bottom of the threaded rod, so that the operator can easily make manual adjustments, thereby achieving precise control of the extrusion force.

[0011] In the design of the mounting plate, a first guide shaft is specially passed through, and an upper clamping seat is installed at the bottom of the first guide shaft. The clamping surface of the upper clamping seat is tightly against the cast iron pipe fitting, ensuring the stability and accuracy of the cast iron pipe fitting during processing. In order to further enhance the clamping effect, a high-strength spring is also sleeved on the first guide shaft. This spring is located between the mounting plate and the upper clamping seat. Through its elastic force, the upper clamping seat can exert a continuous and stable extrusion effect on the cast iron pipe fitting.

[0012] It is worth noting that there are two first guide shafts, which are located on both sides above the cast iron pipe. This design ensures uniform clamping and squeezing of the workpiece. In order to further facilitate the operation, an auxiliary lever is specially designed at the upper end of the first guide shaft, allowing the operator to clamp and disassemble more easily.

[0013] Finally, a second guide shaft is passed through the mounting plate, and its bottom end is connected to the lifting plate. This design allows the lifting plate to remain stable during operation, avoiding instability caused by vibration or external force, thereby ensuring the stability and reliability of the entire equipment during operation.

[0014] A method for grinding the inner wall of a cast iron pipe fitting comprises the following steps: S1: placing the cast iron pipe fitting on the lower clamping seat, and then driving the three-jaw chuck to rotate by the driving motor, so that the grinding roller rotates and penetrates the inner wall of the cast iron pipe fitting for grinding; S2: driving the lifting plate to move up and down by the telescopic cylinder so that the upper extrusion block is in close contact with the inner wall of the cast iron pipe fitting to maintain stable contact between the grinding roller and the inner wall of the cast iron pipe fitting; S3: rotating the threaded rod by rotating the handle, so that the lower extrusion block cooperates with the upper extrusion block, and applying uniform pressure to the inner wall of the cast iron pipe fitting to improve the grinding efficiency and effect; S4: Applying pressure to the upper clamping seat through the high-strength spring, so that the upper clamping seat exerts a stable squeezing effect on the inner wall of the cast iron pipe fitting to ensure stability during the grinding process.

[0015] Compared with the prior art, the invention has the following beneficial effects: the arrangement of the supporting legs and the steering wheels enables the equipment to be stably placed on the ground and to be easy to move. The coordinated use of the threaded rod and the lower extrusion block, as well as the arrangement of the upper extrusion block, ensures the stable contact between the grinding roller and the inner wall of the cast iron pipe fitting, thereby improving the grinding efficiency and effect.

[0016] The use of rubber pads provides anti-slip and protective effects at the extrusion end, protecting the cast iron pipe fittings and the equipment itself. The setting of the rotating handle allows the operator to easily adjust the position of the lower extrusion block to adapt to cast iron pipe fittings of different sizes.

[0017] The coordinated use of the first guide shaft and the high-strength spring ensures the stable extrusion of the upper clamp seat on the inner wall of the cast iron pipe fitting, improving the stability of the grinding process. The setting of the first guide shaft and the second guide shaft, as well as the use of the auxiliary lever, ensure the stability of the equipment and the convenience of operation.

[0018] The use of a drive motor and a three-jaw chuck enables the grinding roller to rotate, thereby grinding the inner wall of the cast iron pipe fitting. The use of a telescopic cylinder allows the lifting plate to move up and down flexibly to accommodate cast iron pipe fittings of different lengths, ensuring the continuity and uniformity of the grinding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a schematic side view of the first guide shaft of the present invention.

[0020] In the figure: 1. bottom plate; 2. support block; 3. lower clamping seat; 4. cast iron pipe fitting; 5. support plate; 6. mounting plate; 7. telescopic cylinder; 8. lifting plate; 9. upper extrusion block; 10. sliding lifting frame; 11. driving motor; 12. three-jaw chuck; 13. grinding roller; 14. support leg; 15. threaded rod; 16. lower extrusion block; 17. rubber pad; 18. first guide shaft; 19. upper clamping seat; 20. high-strength spring; 21. second guide shaft. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-2 The present invention provides a technical solution: a device for grinding the inner wall of a cast iron pipe fitting, which mainly includes a base plate 1. A support block 2 is arranged above the base plate 1 to provide stable support for the entire device. A lower clamping seat 3 is installed above the support block 2 to fix and support the cast iron pipe fitting 4. In order to further enhance the stability and functionality of the device, a support plate 5 is also provided on the other side of the base plate 1. A mounting plate 6 is installed above the support plate 5 to carry other components.

[0023] A telescopic cylinder 7 is arranged above the mounting plate 6, and its driving end extends downward to the bottom of the mounting plate 6. The driving end of the telescopic cylinder 7 is connected to a lifting plate 8, and an upper extrusion block 9 is installed at the lower end of the lifting plate 8. The bottom end of the upper extrusion block 9 abuts against the inner wall of the cast iron pipe fitting 4 to ensure that the pipe fitting remains stable during the grinding process. In this way, the inner wall of the cast iron pipe fitting 4 can be effectively ground.

[0024] In order to achieve precise control and movement of the grinding roller 13, a sliding lifting frame 10 is also provided on the support plate 5. A driving motor 11 is installed above the sliding lifting frame 10, and its driving end extends into the inner side of the support plate 5. The driving motor 11 is connected to a three-jaw chuck 12 through a transmission mechanism, and the three-jaw chuck 12 is used to clamp the grinding roller 13. The grinding roller 13 is designed to be able to penetrate the cast iron pipe fitting 4, and its grinding wall is tightly against the inner wall of the cast iron pipe fitting 4, so as to achieve efficient grinding of the inner wall.

[0025] The whole device realizes stable support and precise grinding of the inner wall of the cast iron pipe 4 through ingenious design, greatly improving the grinding efficiency and quality.

[0026] Specifically, support legs 14 are specially designed under the bottom plate 1, and the bottoms of these support legs 14 are equipped with steering wheels to facilitate the movement and positioning of the device. These steering wheels enable the entire device to be flexibly adjusted and moved in different working environments, thereby improving the convenience and efficiency of operation.

[0027] Furthermore, the structure of the bottom plate 1 also includes a threaded rod 15, which runs through the entire thickness of the bottom plate 1, and a lower extrusion block 16 is arranged at its upper end. The lower extrusion block 16 is used in conjunction with the upper extrusion block 9 to jointly complete the extrusion task of the workpiece. This design enables the upper and lower extrusion blocks to fit closely, ensuring the stability and reliability of the extrusion process.

[0028] In order to further improve the extrusion effect and protect the workpiece, rubber pads 17 are installed at the extrusion ends of the lower extrusion block 16 and the upper extrusion block 9. These rubber pads 17 can not only prevent the workpiece from sliding during the extrusion process, but also play a certain buffering role to reduce damage to the surface of the workpiece. In addition, a rotating handle is specially designed at the bottom end of the threaded rod 15, so that the operator can easily perform manual adjustment, thereby achieving precise control of the extrusion force.

[0029] In the design of the mounting plate 6, a first guide shaft 18 is particularly passed through, and an upper clamping seat 19 is installed at the bottom end thereof. The clamping surface of the upper clamping seat 19 is tightly against the cast iron pipe fitting 4, ensuring the stability and accuracy of the cast iron pipe fitting 4 during the processing. In order to further enhance the clamping effect, a high-strength spring 20 is also sleeved on the first guide shaft 18. This spring is located between the mounting plate 6 and the upper clamping seat 19. Through its elastic force, the upper clamping seat 19 can exert a continuous and stable extrusion effect on the cast iron pipe fitting 4.

[0030] It is worth noting that there are two first guide shafts 18, which are located on both sides above the cast iron pipe 4. This design ensures uniform clamping and squeezing of the workpiece. In order to further facilitate operation, an auxiliary lever is specially designed at the upper end of the first guide shaft 18, so that the operator can clamp and disassemble more easily.

[0031] Finally, a second guide shaft 21 is passed through the mounting plate 6, and its bottom end is connected to the lifting plate 8. This design enables the lifting plate 8 to remain stable during operation, avoiding instability caused by vibration or external force, thereby ensuring the stability and reliability of the entire device during operation.

[0032] A method for grinding the inner wall of a cast iron pipe fitting is applied to the inner wall grinding device of a cast iron pipe fitting in any of the above embodiments.

[0033] This production method defines a process for grinding the inner wall of cast iron pipe fittings to ensure continuous and uniform grinding of the inner wall of the pipe fittings. The following is a detailed explanation of each step: S1: placing the cast iron pipe fitting 4 on the lower clamping seat 3, and then driving the three-jaw chuck 12 to rotate through the driving motor 11, so that the grinding roller 13 rotates and penetrates the inner wall of the cast iron pipe fitting 4 for grinding; ·Place the cast iron pipe fitting 4 on the lower clamping seat 3: Place the cast iron pipe fitting 4 at the designated position and ensure that it is fixed on the lower clamping seat 3.

[0034] The three-jaw chuck 12 is driven to rotate by the driving motor 11: the driving motor 11 is started to drive the three-jaw chuck 12 to rotate.

[0035] The grinding roller 13 is rotated and penetrates the inner wall of the cast iron pipe fitting 4 for grinding: the rotating three-jaw chuck 12 drives the grinding roller 13 to rotate, and the grinding roller 13 enters the inner wall of the cast iron pipe fitting 4 to perform the grinding operation.

[0036] S2: The lifting plate is driven to move up and down by the telescopic cylinder 7, so that the upper extrusion block 9 is in close contact with the inner wall of the cast iron pipe fitting 4, so as to maintain the stable contact between the grinding roller 13 and the inner wall of the cast iron pipe fitting 4; The lifting plate is driven to move up and down by the telescopic cylinder 7: the telescopic cylinder 7 is started to drive the lifting plate to move up and down.

[0037] Make the upper extrusion block 9 closely contact with the inner wall of the cast iron pipe fitting 4: Move the lifting plate to move the upper extrusion block 9 downward and make it closely contact with the inner wall of the cast iron pipe fitting 4.

[0038] To maintain stable contact between the grinding roller 13 and the inner wall of the cast iron pipe fitting 4: ensure that the upper extrusion block 9 is in close contact with the inner wall of the cast iron pipe fitting 4, thereby maintaining stable contact between the grinding roller 13 and the inner wall during the grinding process.

[0039] S3: By turning the handle to rotate the threaded rod 15, the lower extrusion block 16 cooperates with the upper extrusion block 9 to apply uniform pressure to the inner wall of the cast iron pipe 4 to improve the grinding efficiency and effect; Rotating the threaded rod 15 by turning the handle: Manually turn the handle of the threaded rod 15 to rotate it.

[0040] Make the lower extrusion block 16 match with the upper extrusion block 9: rotate the threaded rod 15 to move the lower extrusion block 16 upward to match with the upper extrusion block 9.

[0041] Apply uniform pressure to the inner wall of the cast iron pipe fitting 4: ensure that the upper extrusion block 9 and the lower extrusion block 16 jointly apply uniform pressure to the inner wall of the cast iron pipe fitting 4.

[0042] To improve grinding efficiency and effect: Applying uniform pressure helps to improve the efficiency and effect of the grinding process.

[0043] S4: The high-strength spring 20 applies pressure to the upper clamping seat 19, so that the upper clamping seat 19 exerts a stable squeezing effect on the inner wall of the cast iron pipe fitting 4 to ensure stability during the grinding process.

[0044] Applying pressure to the upper clamping seat 19 by the high-strength spring 20: The high-strength spring 20 applies continuous pressure to the upper clamping seat 19.

[0045] The upper clamping seat 19 exerts a stable extrusion effect on the inner wall of the cast iron pipe fitting 4: The upper clamping seat 19 exerts a stable extrusion effect on the inner wall of the cast iron pipe fitting 4 under the action of the spring pressure.

[0046] Ensures stability during sanding: Steady squeezing action helps ensure stability and precision during sanding.

[0047] Working principle: When the present invention is working, a support leg 14 is provided on the lower side of the base plate 1, and a steering wheel is provided under the support leg, so that the entire device can be stably placed on the ground and can be easily moved.

[0048] The bottom plate 1 is provided with a threaded rod 15, and the upper end of the threaded rod is provided with a lower extrusion block 16, which is used in conjunction with the upper extrusion block 9. By rotating the threaded rod, the up and down movement of the lower extrusion block can be controlled, thereby realizing the driving of the upper extrusion block.

[0049] The extrusion ends of the lower extrusion block 16 and the upper extrusion block 9 are both provided with rubber pads 17 to provide anti-slip and protective effects, thereby ensuring that the extruded object will not be damaged during the extrusion process.

[0050] A rotating handle is provided at the bottom end of the threaded rod 15, and the distance between the upper extrusion block 9 and the lower extrusion block 16 can be conveniently adjusted by rotating the handle to achieve extrusion of the object.

[0051] A first guide shaft 18 is passed through the mounting plate 6, and an upper clamping seat 19 is provided at the bottom end of the first guide shaft. The clamping surface of the upper clamping seat abuts against the cast iron pipe fitting 4 for fixing and positioning the cast iron pipe fitting.

[0052] A high-strength spring 20 is sleeved on the first guide shaft 18, and the spring is located between the mounting plate 6 and the upper clamping seat 19, so that the upper clamping seat plays an extrusion role on the cast iron pipe fitting 4. The elastic force of the spring can ensure the continuous and stable pressure of the upper clamping seat on the cast iron pipe fitting.

[0053] There are two first guide shafts 18, which are respectively located on both sides above the cast iron pipe fitting 4, ensuring uniform extrusion of the cast iron pipe fitting. An auxiliary lever is provided at the upper end of the first guide shaft for auxiliary operation and adjustment.

[0054] The second guide shaft 21 is provided on the mounting plate 6, and the bottom end of the second guide shaft is connected to the lifting plate 8 to keep the lifting plate stable. The height of the cast iron pipe fitting can be adjusted by the lifting plate to facilitate different operations.

[0055] In summary, the device realizes stable fixation, extrusion and height adjustment of cast iron pipe fittings through the coordinated work of components such as threaded rods, extrusion blocks, guide shafts, springs and lifting plates.

[0056] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0058] 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 device for grinding the inner wall of a cast iron pipe fitting, characterized in that: It comprises a bottom plate (1), a support block (2) is provided on the bottom plate (1), a lower clamping seat (3) is provided on the support block (2), and a cast iron pipe fitting (4) is provided on the lower clamping seat (3); The bottom plate (1) is also provided with a support plate (5), the support plate (5) is provided with a mounting plate (6), the mounting plate (6) is provided with a telescopic cylinder (7), the driving end of the telescopic cylinder (7) extends downward to below the mounting plate (6) and is connected to a lifting plate (8), the lower end of the lifting plate (8) is provided with an upper extrusion block (9), the bottom end of the upper extrusion block (9) abuts against the cast iron pipe fitting (4); A sliding lifting frame (10) is provided on the support plate (5), and a driving motor (11) is provided on the sliding lifting frame (10). The driving end of the driving motor (11) extends into the inner side of the support plate (5) and is connected to a three-jaw chuck (12). A grinding roller (13) is clamped on the three-jaw chuck (12). The grinding roller (13) passes through the cast iron pipe fitting (4), and the grinding wall of the grinding roller abuts against the inner wall of the cast iron pipe fitting (4).

2. The inner wall grinding device and grinding method of cast iron pipe fittings according to claim 1, characterized in that: A support leg (14) is provided on the lower side of the base plate (1), and a steering wheel is provided below the support leg (14).

3. The inner wall grinding device and grinding method of cast iron pipe fittings according to claim 1, characterized in that: A threaded rod (15) is provided through the bottom plate (1), and a lower extrusion block (16) is provided at the upper end of the threaded rod (15). The lower extrusion block (16) is used in conjunction with the upper extrusion block (9).

4. The inner wall grinding device and grinding method of cast iron pipe fittings according to claim 3, characterized in that: The extrusion ends of the lower extrusion block (16) and the upper extrusion block (9) are both provided with rubber pads (17) to provide anti-slip and protective effects, and a rotating handle is provided at the bottom end of the threaded rod (15).

5. The inner wall grinding device and grinding method of cast iron pipe fittings according to claim 1, characterized in that: A first guide shaft (18) is provided through the mounting plate (6), an upper clamping seat (19) is provided at the bottom end of the first guide shaft (18), and a clamping surface of the upper clamping seat (19) abuts against the cast iron pipe fitting (4).

6. The inner wall grinding device and grinding method of a cast iron pipe fitting according to claim 5, characterized in that: A high-strength spring (20) is sleeved on the first guide shaft (18), and the high-strength spring (20) is located between the mounting plate (6) and the upper clamping seat (19), so that the upper clamping seat (19) exerts a squeezing effect on the cast iron pipe fitting (4).

7. The inner wall grinding device and grinding method of cast iron pipe fittings according to claim 5, characterized in that: The number of the first guide shafts (18) is 2, which are respectively located on both sides above the cast iron pipe (4), and an auxiliary lever is provided at the upper end of the first guide shaft (18).

8. The inner wall grinding device and grinding method of cast iron pipe fittings according to claim 5, characterized in that: A second guide shaft (21) is provided through the mounting plate (6), and the bottom end of the second guide shaft (21) is connected to the lifting plate (8), so that the lifting plate (8) remains stable.

9. A method for grinding the inner wall of a cast iron pipe fitting, characterized in that: The inner wall grinding device for cast iron pipe fittings according to any one of claims 1 to 9, wherein the production method comprises the following steps: S1: placing the cast iron pipe fitting (4) on the lower clamping seat (3), and then driving the three-jaw chuck (12) to rotate by the driving motor (11), so that the grinding roller (13) rotates and penetrates the inner wall of the cast iron pipe fitting (4) for grinding; S2: driving the lifting plate to move up and down by means of the telescopic cylinder (7) so that the upper extrusion block (9) is in close contact with the inner wall of the cast iron pipe fitting (4) to maintain stable contact between the grinding roller (13) and the inner wall of the cast iron pipe fitting (4); S3: rotating the threaded rod (15) by means of the rotating handle, so that the lower extrusion block (16) cooperates with the upper extrusion block (9), and exerting uniform pressure on the inner wall of the cast iron pipe (4), so as to improve the grinding efficiency and effect; S4: applying pressure to the upper clamping seat (19) through the high-strength spring (20), so that the upper clamping seat (19) exerts a stable squeezing effect on the inner wall of the cast iron pipe (4), thereby ensuring stability during the grinding process.

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