Damping device for turning thin-wall pipe fitting

Abstract

The utility model discloses a damping device for thin-wall pipe fitting turning, which belongs to the technical field of thin-wall pipe fitting processing equipment, and comprises a chuck, a plurality of chutes and a plurality of positioning mechanisms, the plurality of chutes are uniformly arranged on the chuck, one end of each positioning mechanism is fixed in the corresponding chute, each positioning mechanism comprises a pressing assembly, and the pressing assembly is fixed on the chuck. And the pressing assembly is in direct contact with the thin-wall pipe fitting. According to the utility model, the plurality of sliding chutes are arranged on the chuck, one end of the pull rod is fixed in the sliding chutes through the thread assembly, and the other end of the pull rod is provided with the pressing assembly. A bearing in the pressing assembly can be in direct contact with the thin-wall pipe fitting so as to provide radial supporting force; and the bearing is coated with a flexible material, so that the vibration of the thin-wall pipe fitting can be inhibited, the turning stability is ensured, the machining precision is improved, and the service life of a cutter is prolonged. In addition, the damping device further has the adjustable characteristic so as to adapt to machining of the thin-wall pipe fittings of different specifications.

Description

TECHNICAL FIELD

[0001] The utility model relates to thin -walled pipe fitting processing equipment technical field, and especially relates to a kind of vibration damper for thin -walled pipe fitting turning. BACKGROUND

[0002] When turning thin -walled pipe fitting, due to the poor rigidity of thin -walled pipe fitting, cutting speed is too high and other factors, so that thin -walled pipe is easily influenced by cutting force and centrifugal force and produces shaking phenomenon.

[0003] The shaking of thin -walled pipe fitting not only reduces thin -walled pipe processing precision and surface quality, but also makes tool bear periodic impact load. Shaking can change the positional relationship between each processing surface, tool and workpiece, affect position, size and shape accuracy. Frequent impact and vibration will accelerate tool wear, shorten tool life, increase processing cost and tool changing frequency, and reduce production efficiency. Therefore, a kind of vibration damper with simple structure is needed to reduce shaking of thin -walled pipe fitting during turning. SUMMARY

[0004] The utility model aims at overcoming the problem that thin -walled pipe fitting is prone to shaking during turning in prior art, and provides a kind of vibration damper for thin -walled pipe fitting turning.

[0005] To achieve the above-mentioned purpose, the utility model technical scheme is: a kind of vibration damper for thin -walled pipe fitting turning is provided, including chuck, sliding slot and positioning mechanism, the chuck is evenly provided with several sliding slots, one end of the positioning mechanism is fixed in the sliding slot, the positioning mechanism includes compression assembly, the compression assembly is directly contacted with thin -walled pipe fitting.

[0006] In an embodiment, the positioning mechanism further includes a pull rod, the compression assembly is installed on the pull rod, the compression assembly includes a bearing, a shaft sleeve and a first nut, the shaft sleeve is coaxially arranged in the bearing, one end of the pull rod passes through the shaft sleeve, the pull rod is fixedly connected with the shaft sleeve, the first nut is sleeved on the pull rod, and the first nut is installed on the side of the shaft sleeve close to the chuck.

[0007] In an embodiment, the bearing is coated with a flexible material, and the flexible material is used for damping.

[0008] In an embodiment, the positioning mechanism further includes a threaded assembly, the threaded assembly is installed on the pull rod, the compression assembly and the threaded assembly are respectively installed on both ends of the pull rod, and the threaded assembly is fixedly connected with the sliding slot.

[0009] In an embodiment, the threaded assembly comprises a second nut, a first threaded plate and a second threaded plate, the second nut, the first threaded plate and the second threaded plate are sleeved on the other end of the pull rod, the first threaded plate is installed inside the sliding groove, the second threaded plate is installed on the surface of the chuck, and the second nut is installed on the side of the first threaded plate away from the first threaded plate.

[0010] In an embodiment, the damping device further comprises a plurality of clamping claws, and any two adjacent sliding grooves are respectively provided with the clamping claws and the positioning mechanism, and the clamping claws are slidingly installed in the sliding grooves.

[0011] In an embodiment, the sliding groove is arranged along the diameter direction of the chuck.

[0012] In an embodiment, an adjusting handle is installed on the outer wall of the chuck, and the adjusting handle is used for controlling clamping and releasing of the clamping claws.

[0013] In summary, the damping device for turning thin-walled pipe fittings is provided, a plurality of sliding grooves are formed on the chuck, one end of the pull rod is fixed in the sliding groove by the threaded assembly, and the pressing assembly is installed on the other end of the pull rod. The bearing in the pressing assembly can be in direct contact with the thin-walled pipe fitting to provide radial support force, and the bearing is coated with flexible material to suppress vibration of the thin-walled pipe fitting, ensure turning stability, improve machining precision, and prolong tool life. In addition, the damping device also has adjustable characteristics to adapt to machining of thin-walled pipe fittings of different specifications.

[0014] In order to make the above features and advantages of the utility model more obvious and easy to understand, the following embodiments are specifically described below, and the accompanying drawings are described in detail as follows. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 FIG. 1 is a schematic view of a damping device for turning thin-walled pipe fittings in the utility model.

[0016] Figure 2 FIG. 2 is a schematic view of a positioning mechanism in the utility model.

[0017] Figure 3 FIG. 3 is a sectional view of FIG. 1. Figure 1

[0018] Damping device-1;

[0019] Chuck-11; through hole-111;

[0020] Sliding groove-12;

[0021] Clamping claw-13; groove-131; ​

[0022] Positioning mechanism-14; clamping assembly-141; bearing-1411; bushing-1412; first nut-1413; flexible material-1414; pull rod-142; threaded assembly-143; second nut-1431; first threaded plate-1432; second threaded plate-1433;

[0023] Adjusting handle -15;

[0024] Thin-walled pipe fitting 2. Detailed Implementation

[0025] To make the objectives and technical solutions of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] It should be understood that although the terms "first," "second," etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of this invention, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0028] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Although the illustrations only show the components related to this utility model and are not drawn according to the actual number, shape and size of the components, the form, quantity and proportion of each component can be arbitrarily changed in actual implementation, and the layout of the components may also be more complex.

[0029] During the turning process of thin-walled pipes, existing chucks can only provide a limiting function, which is insufficient to reduce the frequent vibration of thin-walled pipes under the action of cutting force.

[0030] This invention provides a vibration damping device for turning thin-walled pipes, which can effectively solve the vibration problem during the processing of thin-walled pipes.Figure 1 It is a schematic view of a damping device for thin-walled pipe turning in the utility model, as shown in the figure, the damping device 1 includes chuck 11, several sliding grooves 12, several clamping jaws 13 and several positioning mechanisms 14, the chuck 11 is evenly provided with several sliding grooves 12, any two adjacent sliding grooves 12 are respectively provided with the clamping jaw 13 and the positioning mechanism 14, the clamping jaw 13 is slidably installed with the sliding groove 12, one end of the positioning mechanism 14 is fixed in the sliding groove 12. Figure 1

[0031] The chuck 11 is cylindrical, which can be made of steel, cast iron, aluminum alloy and stainless steel, etc. The chuck 11 is provided with a through hole 111 (see Figure 3 ) in the center, so as to clamp and process the thin-walled pipe. The through hole 111 can pass through the longer thin-walled pipe, and cooperating with the corresponding supporting device (not shown in the figure) can make the thin-walled pipe get more stable support, avoid the deformation and vibration caused by the overlong cantilever of the thin-walled pipe. In addition, when processing the inside of the thin-walled pipe, the through hole 111 provides an operable space for the tool.

[0032] The sliding groove 12 is arranged along the diameter direction of the chuck 11. The number of the sliding groove 12 can be reasonably increased or decreased according to the actual application scene of the damping device 1. The sliding groove 12 can be arranged as a dovetail groove, or other types such as T-shaped groove according to actual needs.

[0033] One end of the clamping jaw 13 is embedded in the sliding groove 12, recesses 131 are arranged on both sides of the bottom end of the clamping jaw 13 in contact with the inner wall of the sliding groove 12, the shapes of the recesses 131 and the sliding groove 12 are matched, so that the bottom end side surface of the clamping jaw 13 and the inner wall surface of the sliding groove 12 are embedded with each other. A flat thread is arranged on the bottom surface of the clamping jaw 13, and the bottom end of the clamping jaw 13 is simultaneously engaged and connected with a flat threaded disc (not shown in the figure) installed in the chuck 11. The flat threaded disc and a plurality of bevel gears (not shown in the figure) installed in the chuck 11 are engaged with each other, the bevel gears are connected with an adjusting handle 15, and the adjusting handle 15 is installed on the outer side wall of the chuck. The specific structure of the flat threaded disc and the bevel gear can refer to the disc wire and linkage bevel gear in the patent publication No. CN222133490U.

[0034] By rotating the adjusting handle 15, the small bevel gear is driven to rotate, and then the flat threaded disc is driven to rotate, and by the engagement connection between the flat threaded disc and the bottom surface of the clamping jaw 13, the flat threaded disc drives a plurality of clamping jaws 13 to move radially and linearly along the sliding groove 12 synchronously, so as to realize the clamping and dismounting of the thin-walled pipe 2.

[0035] ​The positioning mechanism 14 is also installed in the slide groove 12. The positioning mechanism 14 and the claw 13 are alternately arranged in a plurality of slide grooves 12. The positioning mechanism 14 includes a clamping assembly 141, a pull rod 142 and a threaded assembly 143. The clamping assembly 141 and the threaded assembly 143 are respectively fixed to both ends of the pull rod 142, and the threaded assembly 143 is fixedly connected to the slide groove 12.

[0036] The pull rod 142 is provided with threads, which are used to connect with the clamping assembly 141 and the threaded assembly 143.

[0037] Figure 2 A schematic diagram of the positioning mechanism, such as Figure 2 As shown, the clamping assembly 141 includes a bearing 1411, a bushing 1412, and a first nut 1413. The bushing 1412 is coaxially fitted inside the bearing 1411. One end of the pull rod 142 passes through the bushing 1412, and the pull rod 142 is fixedly connected to the bushing 1412. The first nut 1413 is also fixedly installed on the pull rod 142, and is installed on the side of the bushing 1412 near the chuck 11, directly contacting the bushing 1412. Preferably, the pull rod 142 and the bushing 1412 can be connected by a thread. Alternatively, the clamping assembly 141 may use a pressure block (not shown in the figure) instead of the bearing 1411.

[0038] The bearing 1411 and the bushing 1412 can be fixed by welding, key connection, or interference fit. Furthermore, in conjunction with... Figure 1 and Figure 2 It is known that during the turning process, the bearing 1411 is in direct contact with the thin-walled tube 2, and the bearing 1411 provides support force radially along the thin-walled tube 2, which will effectively reduce the turning vibration of the thin-walled tube 2 and reduce the degree of tool wear.

[0039] Preferably, the bearing 1411 is covered with a flexible material 1414, which may be made of polyurethane, rubber, or the like. The flexible material 1414 may cover the outside of the bearing 1411 or only cover the outer wall of the part in contact with the thin-walled tube 2. When the bearing 1411 contacts the thin-walled tube 2, the elasticity and damping properties of the flexible material 1414 absorb and dissipate a portion of the vibration energy, thereby achieving a vibration reduction effect.

[0040] The first nut 1413 serves as a limit to prevent the bearing 1411 and the bushing 1412 from moving on the pull rod 142.

[0041] Figure 3 forFigure 1 Cross-sectional view, such as Figure 3 As shown, the threaded assembly 143 includes a second nut 1431, a first threaded plate 1432, and a second threaded plate 1433. The second nut 1431, the first threaded plate 1432, and the second threaded plate 1433 are all sleeved on the other end of the pull rod 142. The first threaded plate 1432 is installed inside the slide groove 12, and the second threaded plate 1433 is installed on the surface of the chuck 11. The second nut 1431 is in direct contact with the second threaded plate 1433, and is installed on the side of the second threaded plate 1433 away from the first threaded plate 1432. Both the first threaded plate 1432 and the second threaded plate 1433 have threaded holes, allowing them to be threadedly connected to the pull rod 142. The second nut 1431 can press the second threaded plate 1433 onto the surface of the chuck 11, and the first threaded plate 1432 is fitted into the slide groove 12. Through the synergistic action of the first threaded plate 1432 and the second threaded plate 1433, the pull rod 142 can be vertically fixed on the chuck 11.

[0042] Combination Figures 1 to 3 As can be seen, during the assembly of the thin-walled tube 2, the thin-walled tube 2 is first placed on the surface of the chuck 11 along the axial direction of the chuck 11, and the adjusting handle 15 is manually rotated to make the jaws 13 clamp the thin-walled tube 2. The second nut 1431 is further loosened and the positioning mechanism 14 is moved so that the bearing 1411 is in direct contact with the thin-walled tube 2. After the movement is completed, the first threaded plate 1432 and the second threaded plate 1433 are pressed together, and the second nut 1431 is tightened to ensure that the positioning mechanism 14 is fixed on the surface of the chuck 11. The first nut 1413 is turned, and the position of the bearing assembly 141 is adjusted along the pull rod 142 according to the size and length of the thin-walled tube 2. After adjusting to a suitable position, the turning of the first nut 1413 is stopped to complete the adjustment. The positioning mechanism 14 restricts the radial movement of the thin-walled tube 2, provides support force, ensures the stability of the turning process, improves machining accuracy, and extends tool life. Meanwhile, the flexible material 1414 covering the bearing 1411 can isolate vibration transmission and increase damping. It can convert vibration energy into other forms of energy such as heat energy by using intermolecular friction and internal friction, thereby reducing the amplitude and frequency of vibration, so as to achieve the effect of consuming vibration energy and suppressing the continuous amplification of vibration.

[0043] After the above operation, the thin-walled pipe 2 provided with the damping device 1 is clamped on a lathe (not shown in the figure) for further turning processing. During the processing, if the thin-walled pipe 2 still has shaking, the position of the first nut 1431 can be adjusted in time to optimize the supporting force.

[0044] In summary, the damping device for turning thin-walled pipes provided by the utility model can be adjusted to adapt to the processing of thin-walled pipes of different specifications.

[0045] Although the utility model has been disclosed as above with examples, it is not used to limit the utility model, and anyone with ordinary knowledge in the art can make some changes and decorations without departing from the spirit and scope of the utility model, so the protection scope of the utility model shall be defined by the appended patent application scope.

Claims

1. A vibration damping device for turning thin-walled tubes, characterized in that, It includes a chuck, a slide groove, and a positioning mechanism. The chuck has several slide grooves evenly distributed on it. One end of the positioning mechanism is fixed in the slide groove. The positioning mechanism includes a clamping component, which is in direct contact with the thin-walled tube.

2. The vibration damping device for turning thin-walled tubes as described in claim 1, characterized in that, The positioning mechanism further includes a pull rod, and the clamping assembly is mounted on the pull rod. The clamping assembly includes a bearing, a bushing, and a first nut. The bushing is coaxially fitted inside the bearing. One end of the pull rod passes through the bushing, and the pull rod is fixedly connected to the bushing. The first nut is fitted onto the pull rod and is installed on the side of the bushing near the chuck.

3. The vibration damping device for turning thin-walled tubes as described in claim 2, characterized in that, The bearing is covered with a flexible material, which is used for vibration damping.

4. A vibration damping device for turning thin-walled tubes as described in claim 2, characterized in that, The positioning mechanism further includes a threaded assembly, which is mounted on the pull rod. The clamping assembly and the threaded assembly are respectively mounted on both ends of the pull rod, and the threaded assembly is fixedly connected to the slide groove.

5. A vibration damping device for turning thin-walled tubes as described in claim 4, characterized in that, The threaded assembly includes a second nut, a first threaded plate, and a second threaded plate. The second nut, the first threaded plate, and the second threaded plate are all sleeved on the other end of the pull rod. The first threaded plate is installed inside the slide groove, the second threaded plate is installed on the chuck surface, and the second nut is installed on the side of the first threaded plate away from the first threaded plate.

6. A vibration damping device for turning thin-walled tubes as described in claim 1, characterized in that, The vibration damping device also includes several claws, and the claws and the positioning mechanism are respectively installed in any two adjacent slide grooves. The claws are slidably installed in the slide grooves.

7. A vibration damping device for turning thin-walled tubes as described in claim 1, characterized in that, The groove is arranged along the diameter direction of the chuck.

8. A vibration damping device for turning thin-walled tubes as described in claim 6, characterized in that, An adjustment handle is installed on the outer wall of the chuck, and the adjustment handle is used to control the clamping and releasing of the jaws.

Images