Inner hole chamfering device

Abstract

The utility model belongs to the technical field of machining, and discloses an inner hole chamfering device which comprises a chamfering assembly used for penetrating into a pipe fitting to press an inner hole for chamfering, and further comprises a rack assembly used for centering the pipe fitting and providing horizontal up-and-down moving power, and a limiting assembly used for sliding adjustment and positioning is installed in the middle of the rack assembly. The chamfering assembly is installed on the machine frame assembly. The rack assembly comprises a workbench, two telescopic air cylinders are symmetrically installed on the workbench, a limiting sliding groove is formed in one side of each telescopic air cylinder, and a positioning block is arranged on one side of each limiting sliding groove. The limiting assembly comprises a limiting block. According to the inner hole chamfering device, through the arrangement of horizontal up-and-down movement, it is guaranteed that the chamfering drill vertically moves up and down, and skewing of an inner hole chamfer is avoided; through the arrangement of sliding adjustment positioning, the applicability of inner hole chamfering is improved; and through the arrangement of the V-shaped centering, the chamfering accuracy of the inner hole is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical processing, in particular to an inner hole chamfering device. Background Art

[0002] Internal chamfering usually refers to the process of chamfering the inner hole or hole of a workpiece using a specific cutter or tool. This process can be used to remove burrs, improve the quality of the hole, or provide the correct starting or ending shape for the thread.

[0003] In contrast, the Chinese patent with announcement number CN215034198U discloses an inner hole chamfering device, which is installed on a workbench and includes a driving device, a swing arm device, a pulling device, an elastic supporting device and a chamfering device, wherein: the driving device includes a motor, a driving wheel and a transmission belt, the motor is installed on the workbench, the driving wheel is sleeved on the rotating shaft of the motor, and one end of the transmission belt is sleeved on the driving wheel; the swing arm device includes a transverse swing arm and a swing arm seat, the bottom of the swing arm seat is installed on the workbench, and the top of the swing arm seat is installed with a transverse swing arm through a hinge shaft; the pulling device is installed at the bottom of one side of the transverse swing arm, used to drive the transverse swing arm to swing up and down; the elastic supporting device is installed at the bottom of one side of the transverse swing arm, used to drive the transverse swing arm to restore to a horizontal state in the absence of external force; the chamfering device includes a bearing seat, a main shaft, a transmission wheel and a chamfering drill, the bearing seat is installed at the end of the transverse swing arm, the main shaft is rotatably installed in the bearing seat, the transmission wheel is sleeved on the top of the main shaft, the other end of the transmission belt is sleeved on the transmission wheel, and the chamfering drill is installed at the bottom of the main shaft.

[0004] However, the chamfering drill of the above patent swings up and down, which easily causes the inner hole chamfer to be skewed, and lacks accurate positioning, which reduces the accuracy of the inner hole chamfering. Therefore, a new device needs to be designed. Utility Model Content

[0005] The purpose of the utility model is to provide an inner hole chamfering device to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A device for chamfering an inner hole, comprising a chamfering assembly for penetrating into a pipe fitting and pressing down on the inner hole chamfer, and also comprising a frame assembly for supporting the centering of the pipe fitting and providing power for horizontal up and down movement, a limit assembly for sliding adjustment and positioning is installed in the middle of the frame assembly, and the chamfering assembly is installed on the frame assembly; the frame assembly comprises a workbench, and two telescopic cylinders are symmetrically installed on the workbench, a limit slide groove is provided on one side of the telescopic cylinder, and a positioning block is provided on one side of the limit slide groove; the limit assembly comprises a limit block, a slider is provided at the bottom of the limit block, a stud is provided under the slider, and a locking nut is installed on the stud.

[0008] Furthermore: the chamfering assembly includes a lifting frame, a motor is installed at one end of the lifting frame, a driving wheel is installed at the output end of the motor, a chamfering drill is installed at the end of the lifting frame away from the motor, a driven wheel is installed at the top of the chamfering drill, and a transmission belt is installed between the driving wheel and the driven wheel.

[0009] Furthermore: the lifting frame is T-shaped, and the transmission belt is a toothed belt.

[0010] Furthermore: the positioning block is a V-shaped block made of 45 steel material.

[0011] Furthermore: the telescopic cylinder and the workbench are connected by bolts.

[0012] Furthermore: the slider and the limiting block are welded together, and the stud and the slider are welded together.

[0013] Compared with the prior art, the beneficial effects are:

[0014] 1. The horizontal up and down movement setting ensures that the chamfering drill moves vertically up and down, avoiding the skewness of the inner hole chamfer;

[0015] 2. The applicability of inner hole chamfering is improved by adjusting the positioning through sliding;

[0016] 3. The V-shaped centering setting ensures the accuracy of the inner hole chamfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an inner hole chamfering device described in the utility model;

[0018] Figure 2 This is a schematic diagram of a chamfering assembly of an inner hole chamfering device described in the utility model;

[0019] Figure 3 It is a schematic diagram of a frame assembly of an inner hole chamfering device described in the utility model;

[0020] Figure 4It is a schematic diagram of a limiting component of an inner hole chamfering device described in the utility model.

[0021] In the accompanying drawings, 101, lifting frame; 102, motor; 103, driving wheel; 104, transmission belt; 105, driven wheel; 106, chamfering drill; 201, workbench; 202, telescopic cylinder; 203, limiting slide; 204, positioning block; 301, limiting block; 302, slider; 303, locking nut; 304, stud. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-Figure 4 An inner hole chamfering device includes a chamfering assembly for penetrating into a pipe fitting to press down on the inner hole to chamfer the pipe fitting, and also includes a frame assembly for supporting the centering of the pipe fitting and providing power for horizontal up and down movement. A limit assembly for sliding adjustment and positioning is installed in the middle of the frame assembly, and the chamfering assembly is installed on the frame assembly.

[0024] In this embodiment: the chamfering assembly includes a lifting frame 101, the lifting frame 101 is T-shaped, a motor 102 is installed at one end of the lifting frame 101, a driving wheel 103 is installed at the output end of the motor 102, a chamfering drill 106 is installed at the end of the lifting frame 101 away from the motor 102, a driven wheel 105 is installed at the top of the chamfering drill 106, a transmission belt 104 is installed between the driving wheel 103 and the driven wheel 105, and the transmission belt 104 is a toothed belt. The lifting frame 101 supports the motor 102 to drive the driving wheel 103 to drive the driven wheel 105 to rotate through the transmission belt 104, so that the chamfering drill 106 chamfers the inner hole of the pipe fitting;

[0025] In this embodiment: the frame assembly includes a workbench 201, on which two telescopic cylinders 202 are symmetrically installed, the telescopic cylinders 202 and the workbench 201 are bolted, a limited slide groove 203 is provided on one side of the telescopic cylinder 202, and a positioning block 204 is provided on one side of the limited slide groove 203. The positioning block 204 is a V-shaped block made of 45 steel. On the workbench 201, a slider 302 is slid along the limited slide groove 203. At the same time, the workbench 201 supports the telescopic cylinder 202 to telescope and pull the lifting frame 101 to move up and down horizontally. The positioning block 204 is used to align the pipe fittings to prevent skew;

[0026] In this embodiment: the limiting assembly includes a limiting block 301, a slider 302 is provided at the bottom of the limiting block 301, the slider 302 and the limiting block 301 are welded together, a stud 304 is provided under the slider 302, the stud 304 and the slider 302 are welded together, a locking nut 303 is installed on the stud 304, the slider 302 is slid along the limiting slide groove 203, the limiting block 301 is driven to adjust the distance with the positioning block 204, the locking nut 303 is tightened, the limiting block 301 is tightened and fixed by the stud 304, so that the end of the pipe fitting is close to the limiting block 301 and positioned.

[0027] Working principle: first, on the workbench 201, slide the slider 302 along the limiting slide groove 203 to drive the limiting block 301 to adjust the distance with the positioning block 204, tighten the locking nut 303, tighten the limiting block 301 through the stud 304 to fix it, and then insert the pipe fitting into the lifting frame 101, and place it on the positioning block 204, so that the end of the pipe fitting is close to the limiting block 301 for positioning, and then the workbench 201 supports the telescopic cylinder 202 to retract and pull the lifting frame 101 down as a whole, so that the chamfering drill 106 directly contacts the inner hole of the pipe fitting vertically, and at the same time, the lifting frame 101 supports the motor 102 to drive the driving wheel 103 to drive the driven wheel 105 to rotate through the transmission belt 104, so that the chamfering drill 106 chamfers the inner hole of the pipe fitting.

[0028] Although the 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. An inner hole chamfering device, comprising a chamfering assembly for penetrating into a pipe fitting and pressing down on the inner hole to chamfer the pipe fitting, characterized in that: It also includes a frame assembly for supporting the centering of the tube and providing power for horizontal up and down movement, a limit assembly for sliding adjustment and positioning is installed in the middle of the frame assembly, and the chamfering assembly is installed on the frame assembly; The frame assembly comprises a workbench (201), two telescopic cylinders (202) are symmetrically mounted on the workbench (201), a limiting slide groove (203) is arranged on one side of the telescopic cylinder (202), and a positioning block (204) is arranged on one side of the limiting slide groove (203); The limiting assembly comprises a limiting block (301), a sliding block (302) is arranged at the bottom of the limiting block (301), a stud (304) is arranged below the sliding block (302), and a locking nut (303) is installed on the stud (304).

2. An inner hole chamfering device according to claim 1, characterized in that: The chamfering assembly comprises a lifting frame (101), a motor (102) is mounted on one end of the lifting frame (101), a driving wheel (103) is mounted on the output end of the motor (102), a chamfering drill (106) is mounted on the end of the lifting frame (101) away from the motor (102), a driven wheel (105) is mounted on the top end of the chamfering drill (106), and a transmission belt (104) is mounted between the driving wheel (103) and the driven wheel (105).

3. An inner hole chamfering device according to claim 2, characterized in that: The lifting frame (101) is T-shaped, and the transmission belt (104) is a toothed belt.

4. The inner hole chamfering device according to claim 1, characterized in that: The positioning block (204) is a V-shaped block made of 45 steel.

5. The inner hole chamfering device according to claim 1, characterized in that: The telescopic cylinder (202) and the workbench (201) are connected by bolts.

6. The inner hole chamfering device according to claim 1, characterized in that: The slider (302) and the limiting block (301) are welded together, and the stud (304) and the slider (302) are welded together.

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