An in-tube positioning burr removal device

Abstract

The utility model provides a kind of pipe inner positioning burr removing device. Including pipe support, centering screw, support, bearing, positioning shaft, spring, coupling, tool holder and tool bar;Pipe support is arranged in the inner wall of pipe, for supporting pipe and fixing its inner heart;Centering screw array is on the outer circumference of pipe support, forms point support;Support is fixed in the side part of pipe support, and the center of support is collinear with the center of pipe support;Bearing is embedded in the middle part of support, forms rolling support;Positioning shaft is assembled on bearing, forms rotating support fixed point;Spring is arranged in the extension end of positioning shaft, and rotates concentrically with it;Coupling is connected with spring at one end;Tool holder is connected at the other end of coupling;Tool bar is assembled on tool holder, and is connected and fixed by locking screw;Grip is provided at the tail of tool bar, for operator to hold tool bar and slide along the circumference of pipe end;Wherein, pipe support is positioned in pipe by centering screw, and tool bar makes concentric rotary cutting at the end of pipe with positioning shaft as center.

Description

TECHNICAL FIELD

[0001] The utility model relates to the pipe end face of material field removes burr, especially a kind of pipe inner positioning burr removing device. BACKGROUND

[0002] At present, material field involves the processing, assembly of pipe of multiple materials.And the end face quality requirement of pipe is high, especially pipe generally needs cutting treatment in manufacturing and construction process, especially after cutting end face exists burr using horizontal band saw machine, toothless saw, handheld electric grinding wheel and other tools.

[0003] Pipe burr often needs to be handled by hand polishing, and metal burr is generally hard in texture, so a certain pressure needs to be applied to polishing tool during hand polishing process to remove burr.Hand polishing strength, polishing time and polishing angle are difficult to control and basically have no limit, and hand polishing construction has freedom, which greatly affects the polishing quality.

[0004] However, the present application inventors found that the above-mentioned technology at least has the following technical problems in the process of implementing the technical scheme of the present application embodiment: 1. Using a file to polish by hand often results in uneven polishing of the end face, especially the phenomenon of damaging the pipe wall due to unstable hand holding of the polishing tool.Especially, the pipe wall of bright stainless steel pipe, iron white copper pipe and red copper pipe is very easy to be damaged, and once damaged by scratching, grinding, excessive polishing, etc., the damage is basically irreversible, which has a relatively large impact on the overall quality and directly affects the quality of the pipe.

[0005] 2. Pipe construction needs to polish the inner wall to realize pipe inner chamfering.Pipe inner chamfering refers to chamfering treatment on the inner surface of pipe or pipe fitting to improve its connection performance, reduce stress concentration, improve sealing or facilitate assembly.The wall of bright stainless steel pipe, iron white copper pipe and red copper pipe is thin, and needs cam-shaped rolling support, and the outer wall of pipe needs concave wheel-shaped rolling support;Since the pipe wall is thin, it is easy to be deformed and damaged when subjected to external pressure and friction, which affects the polishing quality, and the working efficiency of file is very low. SUMMARY

[0006] In order to solve the problems of pipe wall deformation and damage during pipe inner chamfering and affect the polishing quality, the present application embodiment provides a pipe inner positioning burr removing device.The device positions in the pipe by pipe support, and the knife strip rotates concentrically with the pipe to cut the end of the pipe, to realize pipe inner chamfering, and solve the technical problem of pipe inner chamfering.

[0007] The solution adopted by the present application embodiment to solve the technical problems is as follows: A kind of inside positioning burr removing device of pipe includes pipe support, centering screw, support, bearing, positioning shaft, spring, coupling, tool holder and tool bar; Pipe support is arranged on the inner wall of pipe, for supporting pipe and fixing its inner core;Centering screw array is on the outer circumference of pipe support, evenly contacts the inner wall of pipe to form point support;Support is fixedly arranged on the side of pipe support, the center of support is collinear with the center of pipe support, for forming cantilever fixing point;Bearing is embedded in the middle of support, forming rolling support;Positioning shaft is assembled on bearing, forming rotating support fixing point;Spring is arranged at the extension end of positioning shaft, and rotates concentrically with it;One end of coupling is connected with spring;Tool holder is connected at the other end of coupling;Tool bar is assembled on tool holder, and is fixed by locking screw;Grip is provided at the tail of tool bar, for operator to hold tool bar and slide along the circumference of pipe end; Wherein, pipe support is positioned in pipe by centering screw, and tool bar rotates concentrically around positioning shaft to cut at the end of pipe.

[0008] In order to further solve the technical problems to be solved in the embodiments of the present application, the support in the embodiments of the present application is a circle-centered star structure, including a hub, spokes and a pin shaft I; The hub is arranged at the center of the support and is a circular ring structure, and a bearing hole is arranged on the hub for assembling the bearing; The spokes are radial structural members and are evenly distributed around the hub;A pin shaft I through hole is arranged at the extension end of the spoke, and the pin shaft I through hole corresponds to the pin shaft I hole; The pin shaft I is a connecting member, which passes through the pin shaft I through hole into the pin shaft I hole to fix the support on the side of the pipe support.

[0009] Further, the positioning shaft is a stepped shaft, a spring positioning shaft is arranged at one end of the positioning shaft for sleeving the spring, and a bearing shaft is arranged at the other end of the positioning shaft for the bearing;A spring positioning pin hole is arranged on the spring positioning shaft, and one end of the spring is connected and fixed by passing through the spring positioning pin hole with the spring positioning pin;A pin shaft II hole is arranged on the bearing shaft, and the pin shaft II passes through the pin shaft II hole to radially limit and fix the positioning shaft and the bearing.

[0010] Still further, the coupling is a curved structure, a spring cavity is arranged at one end of the coupling for accommodating the spring, a pin shaft II through hole is arranged on the spring cavity for the spring positioning pin to pass through the pin shaft II through hole to connect and fix the spring;A flush part is arranged at the other end of the coupling for connecting the tool holder.

[0011] Positive effects: One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages: 1. The technical scheme that the centering screw is arranged on the pipe support to position in the pipe is adopted in the embodiment of the present application, the support is fixed on the side of the pipe support, the positioning shaft is assembled in the center of the support through the bearing, one end of the connecting piece is connected with the positioning shaft through the spring, and the other end is assembled with the blade through the tool holder, the technical problem of the chamfering in the pipe in the prior art is solved, the pipe support can be positioned in the pipe through the centering screw, the pipe wall is avoided from being deformed, and the technical effect that the blade and the pipe rotate concentrically to perform the inner chamfering is realized.

[0012] 2. The technical scheme that the blade can swing with the spring is adopted in the embodiment of the present application, the technical problem of the chamfering in the pipe in the prior art is solved, the different diameters of the pipe are facilitated to be adapted, the blade is adjusted to contact the pipe to cut, the inner chamfering operation of the pipe is performed, and the technical effect that the polishing quality is improved is realized.

[0013] 3. The technical scheme that the protrusion is arranged at the front end of the centering screw is adopted in the embodiment of the present application, the centering screw passes through the wall of the pipe support and contacts the inner wall of the pipe, the device can be positioned in the pipe, and the technical problem of the chamfering in the pipe in the prior art is solved, and the technical effect that the pipe wall is avoided from being deformed is realized.

[0014] 4. The technical scheme that the support is fixed on the pipe support is adopted in the embodiment of the present application, the bearing is embedded in the hub, the technical problem of the chamfering in the pipe in the prior art is solved, the center of the bearing is collinear with the center of the support, and the technical effect that the bearing is concentric with the pipe is realized.

[0015] The device can be used as a pipe positioning burr removing device. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Figure 1 It is the southeast isometric view of the embodiment; Figure 2 It is the southeast isometric view of the embodiment; Figure 3 It is the local enlarged view of the embodiment A; Figure 4 It is the northwest isometric view of the embodiment; Figure 5 It is the front view of the embodiment; Figure 6 It is the top view of the embodiment; Figure 7 is a side view of the embodiment; Figure 8 is a schematic view of the pipe support; Figure 9 is a schematic view of the bracket; Figure 10 is a schematic view of the positioning shaft; Figure 11 is a schematic view of the coupling piece; Figure 12 is a schematic view of the tool holder.

[0018] in the figure; 100. pipe support, 110. threaded hole, 120. pin shaft I hole, 200. centering screw, 300. bracket, 310. wheel hub, 311. bearing hole, 320. spoke, 321. pin shaft I through hole, 330. pin shaft I, 400. bearing, 500. positioning shaft, 510. spring positioning shaft, 511. spring positioning pin hole, 520. bearing shaft, 521. pin shaft II hole, 530. pin shaft II, 600. spring, 610. spring positioning pin, 700. coupling piece, 710. spring cavity, 720. pin shaft II through hole, 730. flush portion, 800. tool holder, 810. U-shaped groove, 820. locking threaded hole, 900. tool bar, 910. locking screw, DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the utility model.

[0020] According to Figures 1-12 It is shown that a pipe internal positioning burr removing device comprises a pipe support 100, a centering screw 200, a bracket 300, a bearing 400, a positioning shaft 500, a spring 600, a coupling piece 700, a tool holder 800 and a tool bar 900; Pipe support 100 is arranged on the inner wall of the pipe to support the pipe and fix its inner core; The array of centering screws 200 is on the outer circumference of pipe support 100, which uniformly contacts the inner wall of the pipe to form point support; Support 300 is fixedly arranged on the side of pipe support 100, and the center of support 300 is collinear with the center of pipe support 100, which is used to form a cantilever fixing point; Bearing 400 is embedded in the middle of support 300 to form rolling support; in this embodiment, bearing 400 is selected as NSKF633; Positioning shaft 500 is assembled on bearing 400 to form a rotating support fixing point; Spring 600 is arranged on the extended end of positioning shaft 500 and rotates concentrically with it; One end of coupling piece 700 is connected with spring 600; Tool holder 800 is connected to the other end of coupling piece 700; Tool bar 900 is assembled on tool holder 800 and is connected and fixed by locking screw 910; a handle is arranged at the tail of tool bar 900, which is used for the operator to hold tool bar 900 and slide along the circumference of the end of the pipe; in this embodiment, locking screw 910 is selected as M6X10; In this embodiment, pipe support 100 is positioned in the pipe by centering screw 200, and tool bar 900 rotates concentrically around positioning shaft 500 to cut the end of the pipe, so as to remove the burrs of the pipe and realize the inner chamfering of the pipe.

[0021] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages: Because pipe support 100 is positioned in the pipe by centering screw 200, support 300 is fixedly arranged on the side of pipe support 100, positioning shaft 500 is assembled on the center of support 300 through bearing 400, one end of coupling piece 700 is connected with positioning shaft 500 through spring 600, and the other end of coupling piece 700 is assembled with tool bar 900 through tool holder 800, therefore, pipe support 100 can be positioned in the pipe by centering screw 200, which avoids the deformation of the pipe wall, and then tool bar 900 rotates concentrically with the pipe to cut the inner side of the end of the pipe, so as to remove the burrs of the end of the pipe and realize the inner chamfering of the pipe.

[0022] Because spring 600 has torsion performance, tool bar 900 can swing with spring 600, which is convenient for adapting to different diameters of the pipe, adjusting the cutting of tool bar 900 on the pipe, and performing the inner chamfering operation of the pipe, thereby improving the polishing quality.

[0023] In order to ensure the stability of the structure of the embodiment, the tube support 100 is a sleeve structure, and threaded holes 110 are arranged on the outer circumference of the tube support 100, which are used for assembling the centering screw 200 against the inner wall of the pipe to realize the inner positioning of the pipe; pin shaft I holes 120 are arranged on the end face of the tube support 100, which are used for cooperating with the pin shaft I 330 to assemble the support 300.

[0024] In the embodiment, the threaded holes 110 are radially arranged with the axis of the tube support 100 as the center, and the number is three; the pin shaft I holes 120 are radially arranged with the axis of the tube support 100 as the center, and the number is three; the threaded holes 110 and the pin shaft I holes 120 are staggered.

[0025] As a conventional technical selection, the front end of the centering screw 200 is provided with a protrusion, which is used for point contact with the inner wall of the pipe to form a supporting fixed point.

[0026] The technical scheme in the above embodiment of the application has at least the following technical effects or advantages: Since the three centering screws 200 are arranged on the outer circumference of the tube support 100, and the front end of the centering screw 200 is provided with a protrusion, the centering screw 200 can pass through the wall of the tube support 100 to contact the inner wall of the pipe, so that the device can be positioned in the pipe and the deformation of the pipe wall can be avoided.

[0027] In order to further ensure the stability of the structure of the embodiment, the support 300 is a circle star type structure, which includes a hub 310, a spoke 320 and a pin shaft I 330; The hub 310 is arranged at the center of the support 300 and is a circular ring structure, and a bearing hole 311 is arranged on the hub 310, which is used for assembling the bearing 400; The spoke 320 is a radial structure member and is uniformly distributed around the hub 310; a pin shaft I through hole 321 is arranged at the extension end of the spoke 320, and the pin shaft I through hole 321 corresponds to the pin shaft I hole 120; in the embodiment, the spoke 320 is three and is uniformly distributed at intervals of 120°; The pin shaft I 330 is a connecting piece, which passes through the pin shaft I through hole 321 into the pin shaft I hole 120 to fix the support 300 on the side of the tube support 100.

[0028] The technical scheme in the above embodiment of the application has at least the following technical effects or advantages: Since the support 300 is fixed on the tube support 100, and the bearing 400 is embedded in the hub 310, the center of the bearing 400 is collinear with the center of the support 300, so that the bearing 400 can be concentric with the pipe.

[0029] In order to optimize the structure of the embodiment, the positioning shaft 500 is a stepped shaft, a spring positioning shaft 510 is arranged at one end of the positioning shaft 500 and is used for sleeving the spring 600, a bearing shaft 520 is arranged at the other end of the positioning shaft 500 and is used for the bearing 400; a spring positioning pin hole 511 is arranged on the spring positioning shaft 510, one end of the spring 600 is connected and fixed by the spring positioning pin 610 passing through the spring positioning pin hole 511; a pin shaft II hole 521 is arranged on the bearing shaft 520, the pin shaft II 530 passes through the pin shaft II hole 521, and the positioning shaft 500 is radially limited and fixed with the bearing 400.

[0030] In order to further optimize the structure of the embodiment, the coupling piece 700 is a curved structure, a spring cavity 710 is arranged at one end of the coupling piece 700 and is used for accommodating the spring 600, a through pin shaft II through hole 720 is arranged on the spring cavity 710 and is used for the spring positioning pin 610 passing through the pin shaft II through hole 720, and the spring 600 is connected and fixed; a flush part 730 is arranged at the other end of the coupling piece 700 and is used for connecting the tool holder 800, so that the tool bar 900 extends along the coupling piece 700 in the radial direction of the pipe.

[0031] In order to further optimize the structure of the embodiment, the tool holder 800 is a block structure, a U-shaped groove 810 is arranged on the tool holder 800 and is used for clamping the tool bar 900; locking screw holes 820 are arranged on both sides of the U-shaped groove 810 and are used for the locking screw 910 passing through the locking screw holes 820 to clamp and fix the tool bar 900.

[0032] The description of the utility model is given for the purpose of example and description, and is not exhaustive or limits the utility model to the disclosed form. Many modifications and changes are obvious to those skilled in the art. The selection and description of embodiments are for better illustrating the principles and practical application of the utility model, and enabling those skilled in the art to understand the utility model so as to design various embodiments with various modifications suitable for specific purposes.

[0033] Finally, it should be noted that: The above only is the preferred embodiment of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiment, for those skilled in the art, it still can modify the technical scheme recorded in the foregoing embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. within the spirit and principle of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A pipe internal positioning burr removal device, characterized in that: Includes tube support (100), centering screw (200), bracket (300), bearing (400), positioning shaft (500), spring (600), connector (700), tool holder (800) and tool bar (900); The pipe brace (100) is installed on the inner wall of the pipe to support the pipe and fix its core. The centering screws (200) are arranged on the outer circumference of the tube support (100) and make uniform contact with the inner wall of the tube to form point support; The bracket (300) is fixed on the side of the pipe support (100), and the center of the bracket (300) is collinear with the center of the pipe support (100) to form a cantilever fixing point; The bearing (400) is embedded in the middle of the bracket (300) to form a rolling support; The positioning shaft (500) is mounted on the bearing (400) to form a rotational support fixing point; The spring (600) is located at the extension end of the positioning shaft (500) and rotates concentrically with it; One end of the connector (700) is connected to the spring (600); The tool holder (800) is connected to the other end of the connector (700); The blade (900) is mounted on the blade holder (800) and is connected and fixed by a locking screw (910); a handle is provided at the tail of the blade (900) for the operator to hold the blade (900) and slide it along the circumference of the end of the tube. The tube support (100) is positioned inside the tube by a centering screw (200), and the blade (900) rotates concentrically around the positioning shaft (500) at the end of the tube.

2. The pipe internal positioning burr removal device according to claim 1, characterized in that: The tube support (100) is a sleeve structure. Threaded holes (110) are arrayed on the outer circumference of the tube support (100) for mounting centering screws (200) against the inner wall of the tube to achieve positioning inside the tube. Pin holes (120) are arrayed on the end face of the tube support (100) for cooperating with pin I (330) to assemble bracket (300).

3. The pipe internal positioning burr removal device according to claim 2, characterized in that: The threaded holes (110) are arranged radially around the axis of the tube support (100), and there are three of them; the pin I holes (120) are arranged radially around the axis of the tube support (100), and there are three of them; the threaded holes (110) and the pin I holes (120) are staggered.

4. The pipe internal positioning burr removal device according to claim 1, characterized in that: The centering screw (200) has a protrusion at its front end, which is used to make point contact with the inner wall of the tube to form a support fixing point.

5. The pipe internal positioning burr removal device according to claim 2, characterized in that: The bracket (300) has a central star-shaped structure, including a hub (310), spokes (320) and pin I (330). The hub (310) is located at the center of the bracket (300) and has a circular structure. The hub (310) has a bearing hole (311) for mounting the bearing (400). The spokes (320) are radial structural components that are evenly distributed around the hub (310); a pin shaft I through hole (321) is provided at the extended end of the spokes (320), and the pin shaft I through hole (321) corresponds to the pin shaft I hole (120); Pin I (330) is a connecting piece that passes through the pin I through hole (321) and enters the pin I hole (120) to fix the bracket (300) to the side of the tube support (100).

6. The pipe internal positioning burr removal device according to claim 1, characterized in that: The positioning shaft (500) is a stepped shaft. A spring positioning shaft (510) is provided at one end of the positioning shaft (500) for mounting the spring (600). A bearing shaft (520) is provided at the other end of the positioning shaft (500) for mounting the bearing (400). A spring positioning pin hole (511) is provided on the spring positioning shaft (510). The spring (600) is connected and fixed by passing the spring positioning pin (610) through the spring positioning pin hole (511). A pin shaft II hole (521) is provided on the bearing shaft (520). The pin shaft II (530) passes through the pin shaft II hole (521) to radially limit and fix the positioning shaft (500) and the bearing (400).

7. The pipe internal positioning burr removal device according to claim 1, characterized in that: The connecting member (700) has a curved structure. A spring cavity (710) is provided at one end of the connecting member (700) to accommodate the spring (600). A through hole (720) for the pin II is provided on the spring cavity (710) so that the spring positioning pin (610) can pass through the through hole (720) to connect and fix the spring (600). A flush part (730) is provided at the other end of the connecting member (700) for connecting the tool holder (800).

8. The pipe internal positioning burr removal device according to claim 1, characterized in that: The tool holder (800) is a block structure. A U-shaped groove (810) is provided on the tool holder (800) for clamping the tool bar (900). Locking threaded holes (820) are provided on both sides of the U-shaped groove (810) for locking screws (910) to pass through the locking threaded holes (820) to clamp and fix the tool bar (900).

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