Miniature hollow bar necking device

Abstract

The utility model discloses a miniature hollow bar necking device, which relates to the necking technical field, and comprises a work bench and a hollow pipe, the surface of the work bench is provided with a necking mechanism, the necking mechanism comprises a support column, a support shaft and an extrusion roller, the surface of the support column is fixedly connected with a support frame, the surface of the work bench is provided with an adjusting mechanism, and the adjusting mechanism is fixedly connected with the support frame. The adjusting mechanism comprises a first sliding plate and a second sliding plate, the bottom end of the supporting column is fixedly connected with the second sliding plate, according to the miniature hollow bar necking device, the supporting shaft is positioned through the supporting column, the operation stability of the supporting shaft is improved, the extrusion roller is positioned through the supporting frame, and the operation stability of the extrusion roller is improved. The hollow pipes are extruded and necked through the extrusion rollers, the necking stability of the hollow pipes is improved, the positions of the supporting columns are adjusted through the first sliding plate and the second sliding plate, then the hollow pipes are necked through the device, the situation that the hollow pipes are damaged due to rigid extrusion is avoided, and the yield of hollow bar production is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to necking technology field, specifically is miniature hollow bar necking device. BACKGROUND

[0002] In the processing technology, necking is a kind of forming process that the cylinder piece or pipe blank shaped in advance is reduced in mouth by necking die. The application of necking process is relatively wide, and can be used for the forming of bullet shell, cannon shell, steel gas cylinder, bicycle frame vertical pipe, bicycle cushion saddle pipe and other parts. For slender tubular parts, sometimes necking can achieve better results instead of drawing.

[0003] The utility model with patent No. CN212494973U proposes a bar groove necking tool, including lathe and slotting mechanism and necking mechanism located opposite to lathe, the chuck is arranged on the lathe, and the chuck is used for clamping bar stock;This tool can neck immediately after the bar groove, reduce dismounting process, improve work efficiency, and the necking mechanism can support the inside of the bar stock, prevent excessive necking and ensure the uniformity of thin wall, and the structure is simple, and the yield is high.

[0004] When hollow bar stock is produced and used, in order to facilitate the connection of multiple pipes, the pipe is necked at one end. The necking tool in the above patent can neck the bar stock, but extrusion can cause deformation of the bar stock, increasing the number of defective products. Therefore, we provide a miniature hollow bar necking device to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a miniature hollow bar necking device to solve the problems in the prior art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a miniature hollow bar necking device, comprising a workbench and a hollow pipe, the surface of the workbench is provided with a necking mechanism, the necking mechanism comprises a support column, a support shaft and an extrusion roller, the surface of the support column is fixedly connected with a support frame, the surface of the workbench is provided with an adjusting mechanism, the adjusting mechanism comprises a first sliding plate and a second sliding plate, and the bottom end of the support column is fixedly connected with the second sliding plate.

[0007] Preferably, the surface of the workbench is fixedly connected with a power machine tool, and the hollow pipe is fixed in the middle of the power machine tool, the top end of the support column is rotatably connected with a rotating sleeve, and the support shaft is slidably connected with the rotating sleeve. Through the power machine tool, the hollow pipe is fixed, and the hollow pipe is conveniently processed.

[0008] Preferably, the surface of the support shaft is fixedly connected with a connecting plate, and the connecting plate is fixedly connected with the rotating sleeve through bolts, the middle part of the support frame is slidably connected with a sliding rod, and the support shaft and the rotating sleeve are fixed together through the connecting plate and the bolts, so that different support shafts can be conveniently replaced.

[0009] Preferably, one end of the sliding rod is fixedly connected with a pushing plate, the surface of the support frame is fixedly connected with a first electric push rod for controlling movement of the pushing plate, and the surface of the pushing plate is fixedly connected with a buffer column for supporting the extrusion roller.

[0010] Preferably, the bottom of the first sliding plate is slidably connected with a first guide rail, and the first guide rail is fixedly connected with a workbench, and the surface of the workbench is fixedly connected with a second electric push rod for controlling movement of the first sliding plate, and the first sliding plate is moved to a suitable position through the second electric push rod.

[0011] Preferably, the surface of the second sliding plate is slidably connected with a second guide rail, and the bottom end of the second guide rail is fixedly connected with the first sliding plate, and the surface of the first sliding plate is provided with equidistantly arranged clamping grooves, and the second sliding plate is fixed through the second guide rail, so that the stability of sliding of the second sliding plate is improved.

[0012] Preferably, the surface of the second sliding plate is slidably connected with a limiting rod matched with the clamping groove, the surface of the limiting rod is fixedly connected with a telescopic spring, and the bottom end of the telescopic spring is fixedly connected with the second sliding plate, the second sliding plate and the first sliding plate are fixed together through the limiting rod inserted into the clamping groove, and the stability of operation of the second sliding plate is improved.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1、The support column is positioned through the support column, the stability of operation of the support shaft is improved, the extrusion roller is positioned through the support frame, the hollow pipe is extruded and necked through the extrusion roller, the stability of necking of the hollow pipe is improved, the position of the support column is adjusted through the first sliding plate and the second sliding plate, and then the device necks the hollow pipe, so that damage of the hollow pipe caused by rigid extrusion is avoided, and the yield of hollow rod production is improved.

[0015] 2、The utility model discloses a hollow pipe is fixed to power machine tool, and the hollow pipe is conveniently processed, and the support shaft is fixed through the rotation sleeve, improves the stability of support shaft rotation, and the support shaft is fixed together with the rotation sleeve through the connecting plate and bolt, conveniently replaces different support shaft, and then can necking processing of the hollow pipe of different diameter, and the buffer column controls the extrusion roller through the push -plate movement, and one end of hollow pipe is extruded necking work, and the buffer column provides certain buffer to the extrusion roller, avoids the damage of hollow pipe caused by rigid extrusion, improves the yield of production.

[0016] 3、The utility model discloses a first electric push rod, control push -plate movement, and then make extrusion roller extrude necking of hollow pipe, improve the stability of necking operation, through the first guide rail, limit first sliding plate, improve the stability of first sliding plate sliding, through the second electric push rod, control first sliding plate moves, and first sliding plate is moved to the appropriate position, through the second guide rail, fix second sliding plate, improve the stability of second sliding plate sliding, through the limiting rod insertion card slot inside, first sliding plate is fixed together with second sliding plate, improve the stability of second sliding plate operation, through the extension spring, provide the tension of limiting rod, make limiting rod and card slot more closely. DRAWINGS

[0017] Figure 1 It is the structure diagram of miniature hollow bar necking device of the utility model;

[0018] Figure 2 It is the structure diagram of necking mechanism of miniature hollow bar necking device of the utility model;

[0019] Figure 3 It is the support shaft connecting structure diagram of miniature hollow bar necking device of the utility model;

[0020] Figure 4 It is the extrusion roller connecting structure diagram of miniature hollow bar necking device of the utility model.

[0021] Marked number in drawing: 1, worktable;2, hollow pipe;3, power machine tool;4, necking mechanism;401, support column;402, rotation sleeve;403, support shaft;404, connecting plate;405, support frame;406, push -plate;407, buffer column;408, extrusion roller;409, first electric push rod;410, sliding rod;5, adjusting mechanism;501, first sliding plate;502, second sliding plate;503, first guide rail;504, second electric push rod;505, first guide rail;506, card slot;507, limiting rod;508, extension spring. DETAILED DESCRIPTION

[0022] 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.

[0023] like Figures 1-4 As shown, this utility model provides a technical solution for a miniature hollow bar stock necking device, including a worktable 1 and a hollow tube 2. A power machine tool 3 is fixedly connected to the surface of the worktable 1, and the hollow tube 2 is fixed in the middle of the power machine tool 3. The power machine tool 3 is used to fix and transport the hollow tube 2, which facilitates the processing of the hollow tube 2.

[0024] The surface of the workbench 1 is provided with a necking mechanism 4, which includes a support column 401, a support shaft 403 and an extrusion roller 408. A support frame 405 is fixedly connected to the surface of the support column 401. The support column 401 positions the support shaft 403, thereby improving the stability of the support shaft 403's operation. The support frame 405 positions the extrusion roller 408, and the extrusion roller 408 extrudes and narrows the hollow tube 2, thereby improving the stability of the necking of the hollow tube 2.

[0025] The top end of the support column 401 is rotatably connected to a rotating sleeve 402, and the support shaft 403 is slidably connected to the rotating sleeve 402. The rotating sleeve 402 fixes the support shaft 403, thereby improving the rotational stability of the support shaft 403.

[0026] A connecting plate 404 is fixedly connected to the surface of the support shaft 403, and the connecting plate 404 is fixedly connected to the rotating sleeve 402 by bolts. The support shaft 403 and the rotating sleeve 402 are fixed together by the connecting plate 404 and bolts, which makes it convenient to replace different support shafts 403, and thus can perform necking processing on hollow tubes 2 of different diameters.

[0027] A sliding rod 410 is slidably connected to the middle of the support frame 405. A push plate 406 is fixedly connected to one end of the sliding rod 410. A buffer column 407 supporting the extrusion roller 408 is fixedly connected to the surface of the push plate 406. The push plate 406 is fixed by the sliding rod 410. The movement of the push plate 406 causes the buffer column 407 to control the extrusion roller 408 to extrude one end of the hollow tube 2. The buffer column 407 provides a certain buffer for the extrusion roller 408, avoiding damage to the hollow tube 2 caused by rigid extrusion and improving the yield of hollow tube 2 production.

[0028] The surface of the support frame 405 is fixedly connected with a first electric push rod 409 for controlling the movement of the pushing plate 406, and through the first electric push rod 409, the pushing plate 406 moves, and then the extrusion roller 408 extrudes the necking of the hollow pipe 2, thereby improving the stability of the necking operation.

[0029] The surface of the workbench 1 is provided with an adjusting mechanism 5, which includes a first sliding plate 501 and a second sliding plate 502, and the bottom end of the support column 401 is fixedly connected with the second sliding plate 502, and through the first sliding plate 501 and the second sliding plate 502, the position of the support column 401 is adjusted, and then the device performs the necking operation on the hollow pipe 2.

[0030] The bottom of the first sliding plate 501 is slidably connected with a first guide rail 503, and the first guide rail 503 is fixedly connected with the workbench 1, and the surface of the workbench 1 is fixedly connected with a second electric push rod 504 for controlling the movement of the first sliding plate 501, and through the first guide rail 503, the first sliding plate 501 is limited, thereby improving the stability of the sliding of the first sliding plate 501, and through the second electric push rod 504, the first sliding plate 501 is moved to a suitable position.

[0031] The surface of the second sliding plate 502 is slidably connected with a second guide rail 505, and the bottom end of the second guide rail 505 is fixedly connected with the first sliding plate 501, and through the second guide rail 505, the second sliding plate 502 is fixed, thereby improving the stability of the sliding of the second sliding plate 502.

[0032] The surface of the first sliding plate 501 is provided with equidistantly arranged clamping grooves 506, and the surface of the second sliding plate 502 is slidably connected with limiting rods 507 clamped with the clamping grooves 506, and through the limiting rods 507 inserted into the clamping grooves 506, the second sliding plate 502 is fixedly connected with the first sliding plate 501, thereby improving the stability of the operation of the second sliding plate 502.

[0033] The surface of the limiting rod 507 is fixedly connected with a telescopic spring 508, and the bottom end of the telescopic spring 508 is fixedly connected with the second sliding plate 502, and through the telescopic spring 508, the limiting rod 507 is provided with a pulling force, so that the limiting rod 507 is clamped with the clamping groove 506 more tightly.

[0034] The power machine tool 3, the first electric push rod 409 and the second electric push rod 504 are prior art, and the detailed parameters and models thereof will not be described in detail.

[0035] The utility model discloses when using: through second electric push rod 504, control first sliding plate 501 removes, remove first sliding plate 501 to the appropriate position, through the removal second sliding plate 502, make support shaft 403 insert hollow pipe 2 inside, through the spacing rod 507 insert the card slot 506 inside, with first sliding plate 501 fixed connection together of second sliding plate 502, then fixed extrusion roller 408 necking length, through power machine tool 3, control hollow pipe 2 rotation, simultaneously through first electric push rod 409 control push plate 406 remove, make extrusion roller 408 to hollow pipe 2 surface extrude, to hollow pipe 2 carry out necking operation, through the support of support shaft 403, improve the stability of hollow pipe 2 necking, avoid necking surface uneven, and hollow pipe 2 with the support of support shaft 403 when rubs, through the rotation sleeve pipe 402, make support shaft 403 with hollow pipe 2 synchronous rotation, improve the support and fixed ability of support shaft 403 to hollow pipe 2.

[0036] It will be apparent to those skilled in the art that the present application is not limited to the details of the above-exemplified embodiments but can be implemented in other forms without departing from the spirit or essential characteristic of the present application. The presently disclosed application thus considers that the embodiments are to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the above description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No feature of the application is to be construed as limiting the scope of the claims to their precise form.

Claims

1. A micro-hollow bar necking device comprising a worktable (1) and a hollow tube (2), characterized in that: The surface of the workbench (1) is provided with a necking mechanism (4), the necking mechanism (4) comprises a support column (401), a support shaft (403) and an extrusion roller (408), the surface of the support column (401) is fixedly connected with a support frame (405), the surface of the workbench (1) is provided with an adjusting mechanism (5), the adjusting mechanism (5) comprises a first sliding plate (501) and a second sliding plate (502), and the bottom end of the support column (401) is fixedly connected with the second sliding plate (502).

2. A micro-hollow bar necking device according to claim 1, wherein: The surface of the workbench (1) is fixedly connected with a power machine tool (3), and the hollow pipe (2) is fixed in the middle of the power machine tool (3), the top end of the support column (401) is rotatably connected with a rotating sleeve (402), and the support shaft (403) is slidably connected with the rotating sleeve (402).

3. A micro-hollow bar necking device according to claim 2, wherein: The surface of the support shaft (403) is fixedly connected with a connecting plate (404), and the connecting plate (404) is fixedly connected with the rotating sleeve (402) through bolts, and the middle of the support frame (405) is slidably connected with a sliding rod (410).

4. A micro-hollow bar necking device according to claim 3, wherein: One end of the sliding rod (410) is fixedly connected with a push plate (406), the surface of the support frame (405) is fixedly connected with a first electric push rod (409) for controlling the movement of the push plate (406), and the surface of the push plate (406) is fixedly connected with a buffer column (407) for supporting the extrusion roller (408).

5. The micro-hollow bar necking device of claim 1, wherein: The bottom of the first sliding plate (501) is slidably connected with a first guide rail (503), and the first guide rail (503) is fixedly connected with the workbench (1), and the surface of the workbench (1) is fixedly connected with a second electric push rod (504) for controlling the movement of the first sliding plate (501).

6. The micro-hollow bar necking device of claim 1, wherein: The surface of the second sliding plate (502) is slidably connected with a second guide rail (505), and the bottom end of the second guide rail (505) is fixedly connected with the first sliding plate (501), and the surface of the first sliding plate (501) is provided with equidistantly arranged clamping grooves (506).

7. A micro-hollow bar necking device according to claim 6, wherein: The surface of the second sliding plate (502) is slidably connected with a limiting rod (507) clamped with the clamping groove (506), the surface of the limiting rod (507) is fixedly connected with a telescopic spring (508), and the bottom end of the telescopic spring (508) is fixedly connected with the second sliding plate (502).

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