A port polishing device for metal pipe fitting machining

Abstract

The utility model discloses a port polishing device for metal pipe fitting processing relates to metal processing technical field in mechanical engineering. Including: base, the outer wall fixedly connected with polishing subassembly of base, the outer wall fixedly connected with power component in base top, the polishing subassembly includes first servo motor, the output fixedly connected with pivot of first servo motor, the outer wall fixedly connected with carousel of pivot close first servo motor, the outer wall fixedly connected with second telescopic link of pivot away carousel, through the L shape structure of external polishing plate and built -in polishing plate forms the grinding area of character, can synchronous polishing to the inner wall, outer wall and end face section of metal pipe fitting port, need not many times to adjust the position of polishing subassembly or dismouting pipe fitting, solved the problem that traditional device can only single polishing inner and outer wall, easy to miss section burr.

Description

Technical Field

[0001] This utility model relates to the field of metal processing technology in mechanical engineering, specifically to a port grinding device for processing metal pipe fittings. Background Technology

[0002] Traditional grinding equipment can usually only grind the outer or inner wall of the pipe fitting in one direction. If it is necessary to grind the inner and outer walls simultaneously, the pipe fitting needs to be disassembled and clamped multiple times and the position of the grinding mechanism needs to be adjusted. This not only increases the complexity of the process, but also easily leads to inconsistent grinding accuracy of the inner and outer walls due to repeated positioning errors. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a port grinding device for metal pipe processing, which solves the problem of grinding in one direction.

[0005] (II) Technical Solution

[0006] To solve the above problems, this utility model achieves this through the following technical solution: a port grinding device for processing metal pipe fittings, comprising: a base, a polishing component fixedly connected to the outer wall of the base, and a power component fixedly connected to the outer wall above the base; the polishing component includes a first servo motor, a rotating shaft fixedly connected to the output end of the first servo motor, a turntable fixedly connected to the outer wall of the rotating shaft near the first servo motor, a second telescopic rod fixedly connected to the outer wall of the rotating shaft away from the turntable, and an outer push plate fixedly connected to the telescopic end of the second telescopic rod away from the rotating shaft; the outer wall of the outer push plate is engaged with a dovetail groove. An external grinding plate is provided. A guide rod is fixedly connected to the inner wall of the first servo motor. A thrust spring is sleeved on the outside of the guide rod. An inner push plate is slidably connected to the outer wall of the guide rod through a sliding sleeve. The inner wall of the inner push plate is slidably engaged with the built-in grinding plate through a dovetail groove. A second telescopic rod drives the outer push plate to move, facilitating the adjustment of the position of the external grinding plate. The dovetail groove connection facilitates the disassembly and replacement of the grinding plate, reducing the difficulty of operation and adapting to different grinding needs. The thrust spring provides elastic force to the inner push plate, laying the foundation for adaptive adjustment of grinding force. The overall structure is easy to assemble and maintain, and the connections of each component are reliable, ensuring the stable operation of the device.

[0007] Preferably, the guide rod located on the outer wall of the inner push plate provides thrust, and the guide rod located on the inner wall of the inner push plate provides tension. The outer wall of the rotating shaft is rotatably connected to the inner wall of the base. The external grinding plate and the internal grinding plate move relative to each other and move away from each other. The differentiated forces of the two sets of thrust springs enable flexible adjustment and automatic reset of the inner push plate without the need for an additional drive structure, simplifying the device structure. The rotational connection between the rotating shaft and the base reduces friction and avoids jamming. The relative movement function of the external and internal grinding plates allows the device to adapt to pipes with different inner and outer diameters without the need to design grinding components separately for each specification, reducing equipment costs and operational complexity, and improving the versatility and efficiency of the device. Both the external and internal grinding plates are L-shaped.

[0008] Preferably, the power assembly includes a second servo motor, the output end of which is fixedly connected to a rotating rod. A gear is fixedly connected to the outer wall of the rotating rod, and the outer wall of the rotating rod is fixedly connected to the outer wall above the base via fixing plates located on both sides of the gear. The gear is meshed with a clamping mechanism. The second servo motor has an adjustable speed, which can adjust the grinding adaptability according to the pipe material and grinding requirements. The rotating rod and gear are fixedly connected to ensure power transmission. The fixing plates on both sides improve the rotational stability of the rotating rod and prevent the rotating rod from shaking, which would cause the gear and clamping mechanism to mesh with the deviation. This ensures that the clamping mechanism operates smoothly, thereby ensuring the uniformity of pipe grinding. The power assembly is stably connected to the base, reducing vibration during operation and extending the service life of each component of the power assembly.

[0009] Preferably, the clamping mechanism includes a mounting cylinder. Teeth are fixedly connected to the outer wall of the mounting cylinder, and the outer walls of the teeth mesh with the outer walls of gears. Grooves are formed on the outer walls of the mounting cylinder on both sides of the teeth. Ball bearings are tumblingly connected inside the grooves, and fixed sleeves are tumblingly connected to the outer walls of the ball bearings. A first telescopic rod is fixedly connected to the inner wall of the mounting cylinder. A clamping plate is fixedly connected to the telescopic end of the first telescopic rod away from the mounting cylinder. The inner wall of the clamping plate has anti-slip strips. Ball bearings are also present between the first servo motor and the base. The teeth of the mounting cylinder mesh with the gears of the power assembly, driving the pipe to rotate synchronously in the same direction as the gear. Conversely, the polishing component ensures uniform contact between the pipe end and the grinding component, guaranteeing even grinding and preventing localized over-grinding or incomplete grinding. The ball bearings reduce friction between the mounting cylinder and the fixing sleeve, minimizing component wear and power loss, and ensuring smooth rotation of the mounting cylinder. The fixing sleeve limits the mounting cylinder's movement, preventing radial displacement during rotation and ensuring stable operation of the clamping mechanism. The first telescopic rod pushes the clamping plate to clamp the pipe, allowing for flexible adjustment of the clamping force to prevent damage to the pipe's outer wall from rigid clamping. It also adapts to pipes of different outer diameters. Anti-slip strips increase friction, preventing slippage and ensuring pipe stability, improving grinding accuracy, and reducing grinding defects.

[0010] (III) Beneficial Effects

[0011] This utility model provides a device for grinding the ends of metal pipe fittings. It has the following advantages:

[0012] (I) The metal pipe fitting processing end grinding device forms a U-shaped grinding area through the L-shaped structure of the external grinding plate and the internal grinding plate. It can simultaneously grind the inner wall, outer wall and end face of the metal pipe fitting end, without the need to adjust the position of the grinding components or disassemble the pipe fitting multiple times. It solves the problem that traditional devices can only grind the inner and outer walls and easily miss the burrs on the cross-section. At the same time, the cooperation between the power component driving the pipe fitting to rotate and the polishing component rotating in the opposite direction improves the relative contact efficiency between the pipe fitting end and the grinding plate, reducing the situation of incomplete grinding in some areas. Combined with the tight fit design between the grinding plate and the pipe fitting end, the grinding of the entire area of ​​the end can be completed in a single operation, shortening the processing time and improving the overall grinding efficiency.

[0013] (II) The end grinding device for processing metal pipe fittings can drive the clamping plate to approach and fit the outer wall of the pipe fitting by squeezing the first telescopic rod. With the anti-slip strip on the inner wall of the clamping plate, it can prevent circumferential sliding or axial movement of the pipe fitting during rotation and grinding, ensuring clamping stability. The adjustable telescopic characteristics of the first telescopic rod can prevent deformation of the outer wall of the pipe fitting caused by rigid clamping, and it is also suitable for metal pipe fittings with different outer diameter specifications. In addition, the external grinding plate is connected to the external push plate through the dovetail groove, which facilitates quick disassembly and replacement of grinding plates with different grits. It can adapt to different grinding needs, reduce the difficulty of changing parts for operators, and improve the adaptability of the device to diverse processing scenarios. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the clamping mechanism of this utility model;

[0016] Figure 3 This is a structural schematic diagram of the cross-section of the polishing component of this utility model;

[0017] Figure 4 This utility model Figure 3 A schematic diagram of the structure at point A in the middle.

[0018] In the diagram: 1. Base; 2. Clamping mechanism; 21. Mounting cylinder; 22. Clamping plate; 23. First telescopic rod; 24. Ball bearing; 25. Gear; 26. Fixing sleeve; 3. Polishing assembly; 31. First servo motor; 32. Turntable; 33. Inner push plate; 34. Built-in grinding plate; 35. Outer push plate; 36. Rotating shaft; 37. External grinding plate; 38. Guide rod; 39. Thrust spring; 310. Second telescopic rod; 4. Power assembly; 41. Second servo motor; 42. Rotating rod; 43. Gear. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 This utility model provides a technical solution for a metal pipe processing port grinding device, including: a base 1, a polishing component 3 fixedly connected to the outer wall of the base 1, and a power component 4 fixedly connected to the outer wall above the base 1; the polishing component 3 includes a first servo motor 31, a rotating shaft 36 fixedly connected to the output end of the first servo motor 31, a turntable 32 fixedly connected to the outer wall of the rotating shaft 36 near the first servo motor 31, a second telescopic rod 310 fixedly connected to the outer wall of the rotating shaft 36 away from the turntable 32, an outer push plate 35 fixedly connected to the telescopic end of the second telescopic rod 310 away from the rotating shaft 36, an external grinding plate 37 being engaged with the outer wall of the outer push plate 35 through a dovetail groove, a guide rod 38 fixedly connected to the inner wall of the first servo motor 31, a thrust spring 39 sleeved on the outside of the guide rod 38, an inner push plate 33 being slidably connected to the outer wall of the guide rod 38 through a sliding sleeve, and an inner grinding plate 34 being slidably engaged with the inner wall of the inner push plate 33 through a dovetail groove.

[0021] The guide rod 38 is located on the outer wall of the inner push plate 33, and the thrust spring 39 provides thrust. The guide rod 38 is located on the inner wall of the inner push plate 33, and the thrust spring 39 provides tension. The outer wall of the rotating shaft 36 is rotatably connected to the inner wall of the base 1. The external grinding plate 37 and the internal grinding plate 34 move relative to each other and move away from each other.

[0022] The power assembly 4 includes a second servo motor 41. The output end of the second servo motor 41 is fixedly connected to a rotating rod 42. A gear 43 is fixedly connected to the outer wall of the rotating rod 42. The outer wall of the rotating rod 42 is fixedly connected to the outer wall above the base 1 through fixing plates located on both sides of the gear 43. The gear 43 is meshed with a clamping mechanism 2.

[0023] The clamping mechanism 2 includes a mounting cylinder 21. The outer wall of the mounting cylinder 21 is fixedly connected with teeth 25. The outer wall of the teeth 25 meshes with the outer wall of the gear 43. The outer wall of the mounting cylinder 21 on both sides of the teeth 25 has grooves. The inside of the grooves is connected to rolling balls 24. The outer wall of the rolling balls 24 is connected to a fixed sleeve 26. The inner wall of the mounting cylinder 21 is fixedly connected to a first telescopic rod 23. The telescopic end of the first telescopic rod 23 away from the mounting cylinder 21 is fixedly connected to a clamping plate 22. The inner wall of the clamping plate 22 has anti-slip strips. There are also rolling balls 24 between the first servo motor 31 and the base 1.

[0024] In use, the metal pipe fitting to be ground is coaxially placed inside the mounting cylinder 21 of the clamping mechanism 2, while the first telescopic rod 23 is squeezed. The first telescopic rod 23 extends and retracts radially along the mounting cylinder 21, pushing the clamping plate 22 at its telescopic end closer to the outer wall of the pipe fitting until the inner wall of the clamping plate 22 is tightly fitted to the outer wall of the pipe fitting. At this time, the anti-slip strip on the inner wall of the clamping plate 22 increases the friction with the outer wall of the pipe fitting, preventing the pipe fitting from circumferentially sliding or axially moving during subsequent rotation and grinding. At the same time, the ball bearings 24 in the grooves on both sides of the teeth 25 on the outer wall of the mounting cylinder 21 form a rolling engagement with the external fixing sleeve 26. The fixing sleeve 26 limits the radial displacement of the mounting cylinder 21 through the limiting effect, allowing only the mounting cylinder 21 to rotate smoothly around its own axis, laying the foundation for the stable operation of the pipe fitting in the future.

[0025] After the drive tube and polishing assembly 3 are clamped in reverse rotation, the power assembly 4 and the drive source of the polishing assembly 3 are started to realize the transmission of power and the coordination of reverse rotation. The power assembly 4 drives the clamping mechanism 2 to operate, and starts the second servo motor 41. The output end of the second servo motor 41 drives the rotating rod 42 to rotate around its own axis. The fixed plates on both sides of the rotating rod 42 provide radial support for the rotating rod 42 to prevent the rotating rod 42 from shaking when rotating. The gear 43 fixed on the outer wall of the rotating rod 42 rotates synchronously with the rotating rod 42. Through the meshing transmission between the gear 43 and the teeth 25 on the outer wall of the mounting cylinder 21, the power is transmitted to the mounting cylinder 21, which drives the mounting cylinder 21 to rotate around its own axis, thereby driving the clamped metal tube to rotate synchronously, and the polishing assembly 3 starts synchronously. It also reverses direction and simultaneously starts the first servo motor 31. The output end of the first servo motor 31 drives the rotating shaft 36 to rotate. The rotating shaft 36 and the inner wall of the base 1 are connected by rotation to reduce friction. The ball bearings 24 between the first turntable 32 and the base 1 further reduce the rotation resistance of the rotating shaft 36 and avoid jamming. The turntable 32 on the rotating shaft 36 rotates synchronously with the rotating shaft 36. The radial support of the turntable 32 reduces the radial sway when the rotating shaft 36 rotates, ensuring the stability of the rotating shaft 36. The rotation direction of the rotating shaft 36 in the polishing assembly 3 is opposite to the rotation direction of the mounting cylinder 21 in the clamping mechanism 2. The reverse rotation forms a relative motion relationship between the pipe rotation and the reverse rotation of the grinding assembly, which improves the contact efficiency and grinding uniformity between the pipe end and the grinding plate.

[0026] Simultaneous grinding of the inner and outer walls and adaptive force control: While the pipe fitting and polishing assembly 3 operate synchronously, the structure of the polishing assembly 3 is adjusted to achieve synchronous grinding of the inner and outer walls of the pipe fitting port and adaptive control of the grinding force. External grinding plate 37 fits against the outer wall: Based on the outer diameter of the pipe fitting port to be ground, the second telescopic rod 310 of the rotating shaft 36 is controlled to extend and retract away from the outer wall of the turntable 32. The second telescopic rod 310 drives the outer push plate 35 at its extension end to move radially along the rotating shaft 36 until the outer wall of the outer push plate 35, engaged by the dovetail groove, tightly fits against the outer wall of the pipe fitting port, completing the initial positioning for outer wall grinding. If a different grit external grinding plate 37 needs to be replaced later, it can be quickly disassembled and reassembled using the detachable characteristic of the dovetail groove to adapt to different grinding precision requirements. Internal grinding plate 34 fits against the inner wall: Under the action of the external thrust spring 39 of the guide rod 38, the internal push plate 33 slides along the guide rod 38 and drives the internal grinding plate 34 to move synchronously. The outer wall thrust spring 39 generates an outward thrust, while the inner wall thrust spring 39 located on the inner push plate 33 generates an inward pull. The differentiated forces of the two sets of springs form an adaptive adjustment mechanism. Simultaneously, the L-shaped outer grinding plate 37 and the inner grinding plate 34 can form a U-shape, enabling grinding of the inner and outer walls and cross-section of the pipe fitting port. When there is a local protrusion on the inner wall of the pipe fitting port, the protrusion exerts a reverse pressure on the inner grinding plate 34, pushing the inner push plate 33 to compress the outer wall spring and stretch the inner wall spring, causing the inner grinding plate 34 to slightly retract, avoiding over-grinding. When there is a local depression on the inner wall of the port, the elastic force of the spring pulls the inner push plate 33, causing the inner grinding plate 34 to move closer to the depression, ensuring that the inner grinding plate 34 is always in contact with the inner wall, achieving effective grinding of the depression. Finally, the inner grinding plate 34 and the outer grinding plate 37 respectively adhere to the inner and outer walls of the pipe fitting port, completing synchronous grinding in the relative motion of opposite rotation.

[0027] The multi-structure cooperation ensures grinding stability. Throughout the grinding process, the core structures work together to ensure operational stability. The base 1, as the basic load-bearing structure, provides stable support for the polishing component 3 and the power component 4, preventing the grinding trajectory from deviating due to foundation shaking. The fixed plates on both sides of the rotating rod 42 in the power component 4 and the turntable 32 in the polishing component 3 provide dual stability to the rotating rod 42 and the rotating shaft 36 from the lateral and radial directions, respectively, preventing the transmission components from shaking and affecting power transmission. The fixed sleeve 26 of the clamping mechanism 2 limits the radial displacement of the mounting cylinder 21. Combined with the adjustable clamping force of the first telescopic rod 23, it not only prevents the pipe from deforming but also ensures that the pipe always rotates coaxially with the grinding component, further ensuring the flatness and coaxiality of the end grinding.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for grinding the ends of metal pipe fittings, characterized in that, include: A base (1) is provided with a polishing assembly (3) fixedly connected to the outer wall of the base (1), and a power assembly (4) is fixedly connected to the outer wall above the base (1). The polishing assembly (3) includes a first servo motor (31), the output end of which is fixedly connected to a rotating shaft (36). A turntable (32) is fixedly connected to the outer wall of the first servo motor (31) near the rotating shaft (36). A second telescopic rod (310) is fixedly connected to the outer wall of the rotating shaft (36) away from the turntable (32). An outer push plate (35) is fixedly connected to the telescopic end of the second telescopic rod (310) away from the rotating shaft (36). An external grinding plate (37) is attached to the outer wall of the outer push plate (35) through a dovetail groove. A guide rod (38) is fixedly connected to the inner wall of the first servo motor (31). A thrust spring (39) is sleeved on the outside of the guide rod (38). An inner push plate (33) is slidably connected to the outer wall of the guide rod (38) through a sliding sleeve. An internal grinding plate (34) is slidably attached to the inner wall of the inner push plate (33) through a dovetail groove.

2. The end grinding device for processing metal pipe fittings according to claim 1, characterized in that: The guide rod (38) is located on the outer wall of the inner push plate (33) and the thrust spring (39) provides thrust. The guide rod (38) is located on the inner wall of the inner push plate (33) and the thrust spring (39) provides tension. The outer wall of the rotating shaft (36) is rotatably connected to the inner wall of the base (1). The external grinding plate (37) and the internal grinding plate (34) move relative to each other and move away from each other.

3. The end grinding device for processing metal pipe fittings according to claim 1, characterized in that: The power assembly (4) includes a second servo motor (41), the output end of which is fixedly connected to a rotating rod (42), and a gear (43) is fixedly connected to the outer wall of the rotating rod (42). The outer wall of the rotating rod (42) is fixedly connected to the outer wall above the base (1) through fixing plates located on both sides of the gear (43). The gear (43) is connected to a clamping mechanism (2) through meshing.

4. The end grinding device for processing metal pipe fittings according to claim 3, characterized in that: The clamping mechanism (2) includes a mounting cylinder (21). The outer wall of the mounting cylinder (21) is fixedly connected with teeth (25). The outer wall of the teeth (25) meshes with the outer wall of the gear (43). The outer wall of the mounting cylinder (21) on both sides of the teeth (25) has grooves. The inside of the grooves is connected with rolling balls (24). The outer wall of the rolling balls (24) is connected with a fixed sleeve (26). The inner wall of the mounting cylinder (21) is fixedly connected with a first telescopic rod (23). The telescopic end of the first telescopic rod (23) away from the mounting cylinder (21) is fixedly connected with a clamping plate (22). The inner wall of the clamping plate (22) has anti-slip strips. There are also rolling balls (24) between the first servo motor (31) and the base (1).

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