CN219074414U

CN219074414U - Groove machining cutter with height-adjustable cutting edge

Info

Publication number: CN219074414U
Application number: CN202123001415.5U
Authority: CN
Inventors: 赵正强; 李府; 赵正国; 周毅; 赵正伟
Original assignee: Sichuan Daoqin Cutting Tools Co ltd
Current assignee: Sichuan Daoqin Cutting Tools Co ltd
Priority date: 2021-12-02
Filing date: 2021-12-02
Publication date: 2023-05-26
Anticipated expiration: 2031-12-02

Abstract

The utility model discloses a groove machining tool with an adjustable cutting edge height, and relates to the field of groove machining tools. A groove processing tool with an adjustable cutting edge height is provided. A groove processing cutter with an adjustable cutting edge height comprises a cutter bar, a cutter holder, a blade, an adjusting column and a fastener; the cutter holder comprises a cutter holder main body and a rotating shaft, the cutter holder main body is attached to the side face of the cutter bar, the rotating shaft is connected with the cutter holder main body, the rotating shaft is inserted into the cutter bar to enable the cutter holder to be hinged with the cutter bar, the cutter holder main body is provided with an arc-shaped long hole, and the rotating shaft is provided with vortex gear teeth; the fastening piece passes through the arc-shaped long hole and is connected with the cutter bar, and the fastening piece compresses the cutter holder; the blade is arranged at the front end of the tool apron; the adjusting column is arranged in the vertical direction, is inserted into the cutter bar and can rotate, and is provided with worm teeth which are meshed with the turbine teeth. The groove machining tool can adjust the height of the cutting edge, is convenient to adjust, and does not need other tools such as gaskets.

Description

Groove machining cutter with height-adjustable cutting edge

Technical Field

The utility model relates to the field of groove machining tools, in particular to a groove machining tool with an adjustable cutting edge height.

Background

The groove processing cutter is used for cutting off parts in turning processing. As shown in fig. 1, during the machining process, especially in small parts machining, a problem is often encountered that, due to the difference in the height of the cutting edge, i.e. the height of the cutting edge is different from the height of the workpiece, a small boss is left on the end face of the workpiece after cutting, which makes it necessary to add a process to the workpiece, and the end face is turned to remove the small boss, thereby increasing the machining cost. In addition, if the height of the cutting bevel edge of the cutter is higher than the rotation center of the workpiece, the rear cutter surface can touch the small boss, and the cutter can be broken. The problems described above are widespread in machining, particularly in old and old equipment for small and medium-sized enterprises, and in maintenance equipment in which impacts occur, and these types of machine tools have in common that the turret accuracy is reduced to varying degrees. A common solution is to arrange a spacer below the cutter and adjust the height of the cutter through the thickness of the spacer, but the height adjustment value is nonlinear and the specific operation is complicated.

In addition to the above negative effects, the residual boss at the end of the workpiece has positive application. When a general rotary small part is processed, after a part is processed, the procedure cuts off the part to finish a workpiece. However, at present, a large number of small-sized processing factories do not have automatic clamping equipment, so that workpieces can fall off after being cut off, and surface damage is easily caused after the workpieces fall off. Therefore, workers can deliberately not cut off the workpiece, keep a small section of material in the center to be connected with the workpiece, and gently break off the workpiece after the program operation is finished. This requires that the tool cutting edge be located below the centre of rotation of the workpiece and that the value below the centre of rotation of the workpiece be controllable. If a gasket is used for adjustment, the adjustment is also complicated.

The retrieved patents ZL201720805995.8, ZL201921430713.6 and ZL201621186392.6 disclose groove cutting tools, but no groove cutting tools are retrieved that facilitate adjustment of the cutting edge height.

Disclosure of Invention

The utility model aims to solve the technical problems that: a groove processing tool with an adjustable cutting edge height is provided.

The technical scheme adopted for solving the problems is as follows: a groove processing cutter with an adjustable cutting edge height comprises a cutter bar, a cutter holder, a blade, an adjusting column and a fastener; the cutter holder comprises a cutter holder main body and a rotating shaft, the cutter holder main body is attached to the side face of the cutter bar, the rotating shaft is connected with the cutter holder main body, the rotating shaft is inserted into the cutter bar to enable the cutter holder to be hinged with the cutter bar, the cutter holder main body is provided with an arc-shaped long hole, and the rotating shaft is provided with vortex gear teeth; the fastening piece passes through the arc-shaped long hole and is connected with the cutter bar, and the fastening piece compresses the cutter holder; the blade is arranged at the front end of the tool apron; the adjusting column is arranged in the vertical direction, is inserted into the cutter bar and can rotate, and is provided with worm teeth which are meshed with the turbine teeth.

Further is: the transmission ratio of the rotating shaft to the adjusting column is 12.

Further is: the upper end of the adjusting column is provided with an indicating disc, the indicating disc is provided with scales for indicating the height of the cutting edge of the blade, and the cutter bar is provided with indicating lines which are arranged corresponding to the scales.

Further is: the utility model provides a cutting edge height-adjustable's groove processing cutter includes the connection piece, and the adjusting column passes the cutter arbor, and the connection piece is located the below of cutter arbor, connection piece and adjusting column threaded connection, the pilot disc is restricted the adjusting column with the connection piece and reciprocates jointly.

Further is: the top surface of the adjusting column is provided with a spanner adapting structure.

The beneficial effects of the utility model are as follows: 1. slightly loosening the fastener and rotating the adjusting column; the worm teeth are meshed with the turbine teeth, so that the adjusting column drives the tool apron to swing, thereby driving the blade to swing, and realizing the height adjustment of the cutting edge. The groove machining tool can adjust the height of the cutting edge, is convenient to adjust, and does not need other tools such as gaskets.

The utility model can adjust the height of the cutting edge according to the requirement. Cutting off the workpiece, and adjusting the height of the cutting edge to be the same as the height of the rotation center of the workpiece when a small boss is left on the end face of the workpiece; and the cutting edge is adjusted to be lower than the proper distance of the rotation center of the workpiece when the workpiece is prevented from falling to cause surface damage after cutting.

2. The utility model is provided with the adjusting column, and the tool apron and the adjusting column are driven by a worm and gear mechanism. The reduction ratio of the worm and gear mechanism is large, so that when the adjusting column rotates by a large angle, the tool apron only rotates by a small angle, and the adjustment precision is improved. Meanwhile, the utility model can realize the linear adjustment of the height of the cutting edge, and the adjustment precision is improved.

3. The adjusting column is arranged in the vertical direction, and can be operated above the groove processing cutter to adjust the height of the cutting edge, so that the operation is further facilitated.

Drawings

FIG. 1 is a schematic drawing of a slot-machining tool;

FIG. 2 is a perspective view of a slot-machining tool with an adjustable cutting edge height;

FIG. 3 is a front view of a slot-machining tool with an adjustable cutting edge height;

FIG. 4 is a top view of a slot-machining tool with an adjustable cutting edge height;

FIG. 5 is a cross-sectional view of a slot-machining tool with an adjustable cutting edge height;

FIG. 6 is a cross-sectional view A-A of FIG. 5;

marked in the figure as: tool bar 1, indicator wire 11, tool holder 2, tool holder body 21, arc slot 211, spindle 22, worm gear tooth 221, insert 3, cutting edge 31, adjusting post 4, worm gear tooth 41, indicator disk 42, graduation 43, wrench adapting structure 44, fastener 5, connecting piece 6.

Detailed Description

The utility model is further described below with reference to the drawings and the detailed description.

As shown in fig. 2 to 6, a slot-machining tool with an adjustable cutting edge height comprises a tool holder 1, a tool seat 2, an insert 3, an adjusting post 4 and a fastener 5; the tool apron 2 comprises a tool apron main body 21 and a rotating shaft 22, the tool apron main body 21 is attached to the side face of the tool bar 1, the rotating shaft 22 is connected with the tool apron main body 21, the rotating shaft 22 is inserted into the tool bar 1 to enable the tool apron 2 to be hinged with the tool bar 1, the tool apron main body 21 is provided with an arc-shaped long hole 211, and the rotating shaft 22 is provided with turbine teeth 221; the fastener 5 passes through the arc long hole 211 and is connected with the cutter bar 1, and the fastener 5 presses the cutter holder 2; the blade 3 is arranged at the front end of the blade holder 2; the adjusting column 4 is disposed vertically, the adjusting column 4 is inserted into the cutter bar 1 and rotatable, and the adjusting column 4 has a worm tooth 41, and the worm tooth 41 is engaged with the worm gear tooth 221.

Slightly loosening the fastener 5 and rotating the adjustment column 4; the worm tooth 41 is meshed with the turbine tooth 221, so that the adjusting column 4 drives the tool holder 2 to swing, thereby driving the blade 3 to swing, and the height adjustment of the cutting edge 31 is realized. The groove processing cutter can adjust the height of the cutting edge 31, is convenient to adjust, and does not need other tools such as gaskets.

The present utility model can adjust the height of the cutting edge 31 as needed. When the workpiece is required to be cut off and a small boss is avoided on the end face of the workpiece, the height of the cutting edge 31 is adjusted to be the same as the height of the rotation center of the workpiece; it is necessary to leave some material, and when the workpiece is prevented from falling down to cause surface damage after cutting, the height of the cutting edge 31 is adjusted to be lower than the proper distance of the rotation center of the workpiece.

The utility model is provided with the adjusting column 4, and the tool apron 2 and the adjusting column 4 are driven by a worm and gear mechanism. The reduction ratio of the worm and gear mechanism is large, so that when the adjusting column 4 rotates by a large angle, the tool apron 2 only rotates by a small angle, and the adjustment precision is improved. Meanwhile, the utility model can realize the height linear adjustment of the cutting edge 31, and the adjustment precision is improved.

The adjusting column 4 is provided in the up-down direction, and can be operated above the groove processing tool to adjust the height of the cutting edge 31, thereby further facilitating the operation.

The transmission ratio of the spindle 22 to the adjusting column 4 is preferably 12. I.e. the adjustment post 4 rotates 360 deg., the holder 2 rotates 30 deg.. The swinging of the tool apron 2 is used for realizing the accurate adjustment of the height of the cutting edge 31, and the tool apron 2 can meet the adjustment requirement by rotating 30 degrees.

After the height of the cutting edge 31 is adjusted, the adjusted position can be known by measuring the height of the cutting edge or comparing the height with a workpiece. In order to facilitate the knowledge of the variation in the height of the cutting edge 31, it is preferable that the upper end of the adjustment post 4 has an indicator plate 42, the indicator plate 42 has a scale 43 indicating the height of the cutting edge 31 of the insert 3, and the holder 1 has an indicator line 11 provided corresponding to the scale 43. The rotation angle of the adjustment post 4 corresponds to a change in the height of the cutting edge 31, so that the graduations 43 may represent the height of the cutting edge 31.

It is obvious that the shaft 22 of the present utility model should be in clearance fit with the hole in the tool bar 1. The function of the arc-shaped long hole 211 is to adapt to the change of the angle of the tool holder 2, when the angle of the tool holder 2 is changed, the fastener 5 can still pass through the arc-shaped long hole 211 to press the tool holder 2, and obviously, the center of the arc-shaped long hole 211 is the center of the rotating shaft 22. The turbine teeth 221 should be located on the inner end of the shaft 22.

The adjusting column 4 is inserted into the tool bar 1 and rotatable, and the adjusting column 4 should not be moved axially. The concrete installation mode of the adjusting column 4 can be as shown in fig. 6, a groove processing cutter with the height-adjustable cutting edge comprises a connecting sheet 6, the adjusting column 4 penetrates through the cutter bar 1, the connecting sheet 6 is positioned below the cutter bar 1, the connecting sheet 6 is in threaded connection with the adjusting column 4, and the indicating disc 42 and the connecting sheet 6 limit the adjusting column 4 to move up and down together. The cutter bar 1 is preferably provided with a counter bore, and the connecting sheet 6 is positioned in the counter bore to avoid exposing the cutter bar 1.

In order to facilitate rotation of the adjustment post 4, it is preferable that the adjustment post 4 has a wrench adaptor structure 44 on an end surface thereof. As shown in fig. 4, the wrench adapting structure 44 may be a hole having a regular hexagonal cross section so as to be adapted to an allen wrench. The socket head cap wrench is inserted into the wrench adapting structure 44, so that the rotation adjusting column 4 can be assisted, and the rotation adjusting column 4 is convenient.

Claims

1. A groove machining tool with a cutting edge of adjustable height, characterized in that: comprises a cutter bar (1), a cutter holder (2), a blade (3), an adjusting column (4) and a fastener (5); the tool apron (2) comprises a tool apron main body (21) and a rotating shaft (22), the tool apron main body (21) is attached to the side face of the tool bar (1), the rotating shaft (22) is connected with the tool apron main body (21), the rotating shaft (22) is inserted into the tool bar (1) to enable the tool apron (2) to be hinged with the tool bar (1), an arc-shaped long hole (211) is formed in the tool apron main body (21), and a turbine tooth (221) is formed in the rotating shaft (22); the fastener (5) passes through the arc-shaped long hole (211) and is connected with the cutter bar (1), and the fastener (5) compresses the cutter holder (2); the blade (3) is arranged at the front end of the tool apron (2); the adjusting column (4) is arranged in the vertical direction, the adjusting column (4) is inserted into the cutter bar (1) and can rotate, the adjusting column (4) is provided with a worm tooth (41), and the worm tooth (41) is meshed with the turbine tooth (221).

2. A slot-machining tool with an adjustable cutting edge height as claimed in claim 1, wherein: the transmission ratio of the rotating shaft (22) and the adjusting column (4) is 12.

3. A slot-machining tool with an adjustable cutting edge height as claimed in claim 2, wherein: the upper end of the adjusting column (4) is provided with an indicating disc (42), the indicating disc (42) is provided with a scale (43) for indicating the height of the cutting edge (31) of the blade (3), and the cutter bar (1) is provided with an indicating line (11) corresponding to the scale (43).

4. A slot-machining tool with adjustable cutting edge height as claimed in claim 3, wherein: the adjusting device comprises a connecting piece (6), wherein an adjusting column (4) penetrates through a cutter bar (1), the connecting piece (6) is located below the cutter bar (1), the connecting piece (6) is in threaded connection with the adjusting column (4), and an indicating disc (42) and the connecting piece (6) limit the adjusting column (4) to move up and down together.

5. A slot-machining tool with adjustable cutting edge height as claimed in claim 4, wherein: the top surface of the adjusting column (4) is provided with a spanner adapting structure (44).