A bushing processing protection mechanism

Abstract

The utility model discloses a bushing processing protection mechanism, including a connecting piece and a chuck, a tail plug is fixedly installed on one side of the connecting piece, a support column is fixedly installed on the other side of the connecting piece, a threaded rod is rotatably installed in the support column, an internal threaded sleeve is threadedly installed on the threaded rod, a U-shaped frame is fixedly connected to one end of the internal threaded sleeve, a roller is rotatably installed on the U-shaped frame through an axis, a storage groove is provided on one side of the support column, the storage groove cooperates with the internal threaded sleeve, and a cutting groove is provided at the center of the outer wall of the roller. The U-shaped frame is driven to move by rotating the knob, so that the roller abuts against the inner wall of the bushing, and when the turning tool processes and squeezes the outer wall of the bushing, the roller abuts against the inner wall of the bushing, which can avoid deformation caused by the bushing processing force.

Description

Technical Field

[0001] The utility model relates to a protection mechanism, in particular to a bushing processing protection mechanism. Background Art

[0002] The bushing is a matching part used outside the mechanical parts to achieve the functions of sealing and wear protection. It refers to a ring sleeve that acts as a gasket. During the production process of the bushing, a lathe is generally used for turning.

[0003] For example, a bushing processing protection mechanism disclosed in the Chinese patent publication number CN219380604U includes a workbench, a clamping assembly is fixedly installed on the top surface of the workbench, a bushing is clamped on the clamping assembly, a fixing frame is placed on the workbench, a clearance groove for the bushing to pass through is opened on the right side of the fixing frame, a telescopic rod is vertically fixed to the inner top wall and the inner bottom wall of the fixing frame, and the opposite sides of the two telescopic rods are fixedly connected with clamps, the bushing is located between the two clamps, and the opposite sides of the two clamps are fixedly connected with rubber pads. The bushing processing protection mechanism clamps and fixes the bushing under the action of the clamp, and tries to prevent the bushing from flying out, improves the safety of the bushing during processing, protects the operator, and conveniently clamps bushings of different sizes through the elasticity of the spring, and conveniently drives the fixing frame to move through the sliding connection between the slide rail and the support block.

[0004] Some problems were found when the above-mentioned existing bushing processing protection mechanism was used. First, most of the bushing processing is still carried out on a lathe. The installation of slide rails and screws requires the modification of the overall layout of the lathe, which is costly. Secondly, when processing the bushing, it is necessary to drive the bushing to rotate at high speed through a three-jaw chuck, etc., and use a turning tool to process the bushing. The splint is clamped at one end of the bushing, which interferes with the rotation processing of the bushing. Utility Model Content

[0005] The purpose of the utility model is to provide a bushing processing protection mechanism to solve the existing problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bushing processing protection mechanism, including a connecting plate and a chuck, a tail plug is fixedly installed on one side of the connecting plate, a support column is fixedly installed on the other side of the connecting plate, a threaded rod is rotatably installed in the support column, an internally threaded sleeve is threadedly installed on the threaded rod, one end of the internally threaded sleeve is fixedly connected to a U-shaped frame, and a roller is rotatably installed on the U-shaped frame through an axis.

[0007] Preferably, a bushing is clamped on the chuck.

[0008] Preferably, a storage groove is provided on one side of the support column, and the storage groove cooperates with the internal threaded sleeve.

[0009] Preferably, a knob is fixedly mounted on one end of the threaded rod.

[0010] Preferably, a cutting groove is provided at the center of the outer wall of the roller.

[0011] Preferably, a telescopic connecting rod is fixedly connected to one side of the U-shaped frame and located in front and behind the internal threaded sleeve, and the other end of the telescopic connecting rod is fixedly connected to the support column.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. Connect the tailstock of the lathe through the tail plug to replace the original ejector pin, then move the tailstock to drive the support column to move, so that the support column is inserted into the center of the bushing clamped on the chuck. After the end of the bushing is turned, it is sleeved on the support column, which can effectively prevent the turned part from flying out. Compared with the existing device, the existing tailstock of the lathe is used, and there is no need to make additional modifications to the lathe, which effectively reduces the cost.

[0014] 2. The U-shaped frame is driven to move by rotating the knob so that the roller abuts against the inner wall of the bushing. When the turning tool extrudes the outer wall of the bushing, the roller abuts against the inner wall of the bushing, which can avoid deformation of the bushing due to stress during processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall structure of the utility model during processing;

[0017] Figure 3 It is a cross-sectional view of the utility model;

[0018] Figure 4 For the utility model Figure 3 Enlarged view of point A in the middle.

[0019] In the figure: 1, connecting piece; 101, tail plug; 2, support column; 201, threaded rod; 202, knob; 203, storage tank; 3, U-shaped frame; 301, roller; 302, cutting groove; 303, internal threaded sleeve; 304, telescopic connecting rod; 4, chuck; 401, bushing. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The utility model provides a technical solution: a bushing processing protection mechanism, including a connecting piece 1 and a chuck 4, a tail plug 101 is fixedly installed on one side of the connecting piece 1, a support column 2 is fixedly installed on the other side of the connecting piece 1, a threaded rod 201 is rotatably installed in the support column 2, an internally threaded sleeve 303 is threadedly installed on the threaded rod 201, a U-shaped frame 3 is fixedly connected to one end of the internally threaded sleeve 303, and a roller 301 is rotatably installed on the U-shaped frame 3 through an axis.

[0022] In this embodiment, the tail plug 101 can be connected to the lathe tailstock, so that the connecting piece 1 is fixed on the lathe tailstock, and the position of the tailstock is adjusted. It should be noted that when clamping, the roller shaft 301 is facing the turning tool, and the position of the connecting piece 1 is adjusted. The movement of the connecting piece 1 will drive the support column 2 to move, so that the support column 2 is inserted into the bushing 401. When the bushing 401 is processed, the cut bushing 401 is sleeved on the support column 2, thereby limiting the cut bushing 401 from flying directly. The threaded rod 201 is threadably matched with the internal threaded sleeve 303. Rotating the threaded rod 201 can drive the internal threaded sleeve 303 to move. The movement of the internal threaded sleeve 303 will drive the U-shaped frame 3 to move. The movement of the U-shaped frame 3 will drive the roller 301 to move, so that the roller 301 is pressed against the inner wall of the processed bushing 401. When the turning tool processes and extrude the outer wall of the bushing 401, the roller 301 is pressed against the inner wall of the bushing 401, which can avoid the deformation of the bushing 401 due to the stress during processing.

[0023] Among them, in order to achieve the purpose of always keeping the roller 301 against the inner wall of the bushing 401, the present device adopts the following technical solution: the bushing 401 is clamped on the chuck 4, a storage groove 203 is opened on one side of the support column 2, the storage groove 203 cooperates with the internal threaded sleeve 303, and a knob 202 is fixedly installed at one end of the threaded rod 201.

[0024] By clamping and fixing the bushing 401 through the lathe chuck 4 and fixing the connecting plate 1 on the tailstock, it can be ensured that the support column 2 is at the center of the bushing 401, so that when the bushing 401 rotates, the roller 301 can always be against the inner wall of the bushing 401, and the storage groove 203 and the internal threaded sleeve 303 cooperate with each other, so that the internal threaded sleeve 303 can be inserted into the storage groove 203, avoiding interference between the internal threaded sleeve 303 and the support column 2, increasing the stroke of the U-shaped frame 3, and rotating the knob 202 can drive the threaded rod 201 to rotate.

[0025] Among them, in order to avoid the contact between the turning tool and the roller shaft 301, the present device adopts the following technical solution: a cutting groove 302 is opened at the center of the outer wall of the roller shaft 301, and a telescopic connecting rod 304 is fixedly connected to one side of the U-shaped frame 3 and in front and behind the internal threaded sleeve 303, and the other end of the telescopic connecting rod 304 is fixedly connected to the support column 2.

[0026] By aligning the cutting groove 302 with the turning tool position, the problem of the turning tool contacting the roller shaft 301 after the turning tool enters the inner wall of the bushing 401 is avoided. The telescopic connecting rod 304 is used to limit the U-shaped frame 3 to only move horizontally, preventing the U-shaped frame 3 from rotating with the threaded rod 201.

[0027] The working principle and use process of the utility model are as follows: when using, the device needs to be placed in a suitable position, the tail plug 101 is inserted into the tailstock of the lathe, and the roller shaft 301 is facing the direction of the lower turning tool, the bushing 401 is clamped on the chuck 4, and the moving tailstock drives the support column 2 to move. The movement of the support column 2 will drive the U-shaped frame 3 to move, so that the support column 2 and the U-shaped frame 3 are both inserted into the bushing 401, as shown in the support column 2, so that the cutting groove 302 is aligned with the turning position, the rotating knob 202 drives the U-shaped frame 3 to move, so that the roller shaft 301 is against the inner wall of the bushing 401, and then the bushing 401 can be turned normally. After the end of the bushing 401 is turned, it is effectively prevented from flying out because it is sleeved on the support column 2.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bushing processing protection mechanism, comprising a connecting piece (1) and a chuck (4), characterized in that: A tail plug (101) is fixedly mounted on one side of the connecting piece (1), and a support column (2) is fixedly mounted on the other side of the connecting piece (1). A threaded rod (201) is rotatably mounted inside the support column (2), an internally threaded sleeve (303) is threadedly mounted on the threaded rod (201), one end of the internally threaded sleeve (303) is fixedly connected to a U-shaped frame (3), a roller (301) is rotatably mounted on the U-shaped frame (3), a bushing (401) is clamped on the chuck (4), a storage groove (203) is provided on one side of the support column (2), the storage groove (203) and the internally threaded sleeve (303) cooperate with each other, and a cutting groove (302) is provided at the center of the outer wall of the roller (301).

2. A bushing processing protection mechanism according to claim 1, characterized in that: A knob (202) is fixedly mounted on one end of the threaded rod (201).

3. The bushing processing protection mechanism according to claim 1, characterized in that: A telescopic connecting rod (304) is fixedly connected to one side of the U-shaped frame (3) and located in front and behind the internal threaded sleeve (303), and the other end of the telescopic connecting rod (304) is fixedly connected to the support column (2).

Images