Auxiliary tool for edge grinding of periphery of indexable blade

Abstract

The utility model discloses an indexable blade periphery sharpening auxiliary tool which comprises a main frame, a first center module and a second center module, the main frame is installed on a rotary workbench of a machining center, and the first center module and the second center module are respectively installed on the main frame. The first center module comprises a rotating center shaft and a first driving piece in transmission connection with the rotating center shaft, the second center module comprises a pressing center shaft and a second driving piece in transmission connection with the pressing center shaft, the end of the rotating center shaft and the end of the pressing center shaft are oppositely arranged, and the blade is installed at the end of the rotating center shaft. The second driving piece drives the pressing center shaft to move towards the rotating center shaft so that the end of the pressing center shaft can press the blade, and the first driving piece drives the rotating center shaft to rotate so that the rotating center shaft can drive the blade to rotate. According to the utility model, a blade peripheral edge grinding process can be carried out without a special indexable blade peripheral edge grinding machine.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of machining, in particular to a kind of periphery sharpening auxiliary tool of indexable insert. BACKGROUND

[0002] Indexable insert periphery sharpening is important process of indexable insert semi-finishing, determines the forming precision of blade cutting edge and relief, and this process is usually carried out on special indexable insert periphery sharpening machine, and there are problems such as higher manufacturing cost and maintenance cost, complex operation and limited scope of application in using indexable insert periphery sharpening machine to carry out indexable insert periphery sharpening process. SUMMARY

[0003] The utility model provides a kind of periphery sharpening auxiliary tool of indexable insert to realize that indexable insert periphery sharpening process can be carried out without special indexable insert periphery sharpening machine, to solve the technical problems of prior art.

[0004] The utility model discloses a kind of periphery sharpening auxiliary tool of indexable insert, including main frame, first centre module and second centre module, the main frame is installed on the rotating worktable of machining center, the first centre module and second centre module are respectively installed on the main frame;The first centre module includes rotating centre pivot and the first driving part that is transmission connection with rotating centre pivot, the second centre module includes the second driving part that is transmission connection with the pressing centre pivot, the end of rotating centre pivot and the end of pressing centre pivot are oppositely arranged, insert is installed at the end of rotating centre pivot, the second driving part drives the pressing centre pivot moves towards rotating centre pivot, to make the end of pressing centre pivot press insert, the first driving part drives rotating centre pivot rotates, to make rotating centre pivot drive insert rotation;The rotation axis of rotating centre pivot is perpendicular to the rotation axis of the rotating worktable of machining center.

[0005] Further, the first driving part and the second driving part are respectively fixedly installed on the main frame, the first driving part is transmission connection with the rotating centre pivot by first transmission assembly, the second driving part is transmission connection with the pressing centre pivot by second transmission assembly;The first driving part is motor, and the second driving part is air cylinder.

[0006] Further, the first transmission assembly includes shaft coupling and speed reducer, the output end of the motor is connected with the input end of the speed reducer, the output end of the speed reducer is connected with one end of the shaft coupling, and the other end of the shaft coupling is connected with the rotating centre pivot.

[0007] Further, the second transmission assembly comprises a sliding support frame, the pressing center shaft is fixed on the sliding support frame, the output end of the air cylinder is connected with the sliding support frame, and the sliding support frame is in sliding fit with the main frame.

[0008] Further, a linear guide rail extending along the moving direction of the pressing center shaft is arranged on the main frame, and the sliding support frame is in sliding connection with the linear guide rail.

[0009] Further, a support seat is arranged on the main frame, the first driving member is fixedly installed on the support seat, and the rotating center shaft is in rotating fit with the support seat.

[0010] Further, a bearing is arranged in fit between the rotating center shaft and the support seat.

[0011] Further, a support plate is arranged on the main frame, and the second driving member is fixedly installed on the support plate.

[0012] Further, the axis of the rotating center shaft and the axis of the pressing center shaft are coincident.

[0013] Further, an adjusting positioning surface is arranged on the rotating center shaft, and the adjusting positioning surface is parallel to the axis of the rotating center shaft.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model discloses a main frame, first center module and second center module, and the main frame is installed on the rotating workbench of machining center, the first center module includes rotating center shaft and first driving member, and the second center module includes pressing center shaft and second driving member. The pressing center shaft is driven to move through the second driving member, so that the pressing center shaft and rotating center shaft clamp the blade, the rotating center shaft is driven to rotate through the first driving member, and the blade is rotated, so that the adjustment of the rear blade surface angle of each cutting edge in the blade grinding process is realized, the main frame is rotated through the rotating workbench, and the grinding of the rear blade surface of different transition curved surfaces of the blade is realized, so that the blade peripheral edge grinding process can be realized, a special indexable blade peripheral edge grinding bed is not needed, the operation is simple, the application range is wide, and the cost is low.

[0016] The utility model makes further detailed description in combination with the drawings and examples, but a kind of indexable blade peripheral edge grinding auxiliary tool of the utility model is not limited to examples. DRAWINGS

[0017] Figure 1 It is the front view of the utility model;

[0018] Figure 2 It is the three-dimensional structure schematic diagram (dial indicator correction A axis) of the utility model.

[0019] Figure 3 is the top view (the relief surface of the milling cutter and the blade close to the main shaft side of the machine tool) of the utility model;

[0020] In the figure: 1, main frame; 11, linear guide rail; 12, support seat; 13, support plate; 2, rotating center shaft; 21, adjustment positioning surface; 3, motor; 4, pressing center shaft; 5, air cylinder; 6, coupling; 7, sliding support frame; 8, bearing; 9, blade; 91, rake surface; 92, relief surface; 10, milling cutter; 20, machine tool main shaft; 30, micrometer. DETAILED DESCRIPTION

[0021] In the utility model, the terms "first", "second" and the like are only used to distinguish similar objects, and are not used to describe a specific order or sequence, and cannot be understood as indicating or implying relative importance. In addition, in the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication between two elements, and those skilled in the art can understand the specific meaning of the above terms in the utility model according to the specific circumstances.

[0022] Please see Figures 1-3 As shown in the figure, the utility model discloses a kind of indexable blade peripheral edge grinding auxiliary tool, including main frame 1, first center module and second center module, main frame 1 is installed on the rotating worktable of machining center, first center module and second center module are respectively installed on main frame 1.First center module includes rotating center shaft 2 and first driving part transmission connection with rotating center shaft 2, second center module includes pressing center shaft 4 and second driving part transmission connection with pressing center shaft 4, the end of rotating center shaft 2 and the end of pressing center shaft 4 are oppositely arranged, blade 9 is installed at the end of rotating center shaft 2, second driving part drives pressing center shaft 4 to move towards rotating center shaft 2, to make the end of pressing center shaft 4 press blade 9, first driving part drives rotating center shaft 2 to rotate, to make rotating center shaft 2 drive blade 9 to rotate.Specifically, the rotation axis of rotating center shaft 2 (i.e. Figure 1 A axis in the figure) is perpendicular to the rotation axis (i.e. Figure 2 Z axis in the figure) of the rotating worktable of machining center.Direction of machine tool coordinate system of machining center refers to Figure 2 As shown in the figure.

[0023] Specifically, the axis of rotating center shaft 2 and the axis of pressing center shaft 4 coincide, and the axis of rotating center shaft 2 and the axis of pressing center shaft 4 are the above-mentioned A axis.

[0024] The first driving member and the second driving member are fixedly installed on the main frame 1, the first driving member is in transmission connection with the rotating center shaft 2 through a first transmission assembly, and the second driving member is in transmission connection with the pressing center shaft 4 through a second transmission assembly. Specifically, the first driving member is a motor 3, and the motor 3 is a servo motor; the motor 3 drives the rotating center shaft 2 to rotate; and the second driving member is a pneumatic cylinder 5, and the pneumatic cylinder 5 drives the pressing center shaft 4 to move towards the rotating center shaft 2.

[0025] The first transmission assembly comprises a coupling 6 and a speed reducer, the output end of the motor 3 is connected with the input end of the speed reducer, the output end of the speed reducer is connected with one end of the coupling 6, and the other end of the coupling 6 is connected with the rotating center shaft 2.

[0026] The second transmission assembly comprises a sliding support frame 7, the pressing center shaft 4 is fixed on the sliding support frame 7, the output end of the pneumatic cylinder 5 is connected with the sliding support frame 7, and the sliding support frame 7 is in sliding connection with the main frame 1. Specifically, the main frame 1 is provided with a linear guide rail 11 extending along the moving direction of the pressing center shaft 4, and the sliding support frame 7 is in sliding connection with the linear guide rail 11.

[0027] The main frame 1 is provided with a support seat 12, the motor 3 is fixedly installed on the support seat 12, and the rotating center shaft 2 is in rotating connection with the support seat 12. The main frame 1 is provided with a support plate 13, and the pneumatic cylinder 5 is fixedly installed on the support plate 13. Preferably, a bearing 8 is arranged between the rotating center shaft 2 and the support seat 12.

[0028] As shown in the drawings, Figure 3 The blade 9 is a standard-size-precision cubic blade 9, when the blade 9 is clamped between the rotating center shaft 2 and the pressing center shaft 4, the rake face 91 of the blade 9 faces the rotating center shaft 2, the number of the relief faces 92 of the blade 9 is four, and the four relief faces 92 are arranged around the A-axis.

[0029] The peripheral grinding auxiliary tool for the indexable blade of the utility model requires certain precision in design and installation, so as to ensure that the rotating center shaft 2 and the pressing center shaft 4 have sufficient coaxiality, the linear guide rail 11 has sufficient parallelism, and the adjustment positioning surface 21 has higher flatness.

[0030] Preferably, the rotating center shaft 2 is provided with an adjustment positioning surface 21, and the adjustment positioning surface 21 is parallel to the axis (i.e. the A-axis) of the rotating center shaft 2.

[0031] The main frame 1 is installed on a rotating workbench of a machining center, and specifically, the machining center can be a five-axis machining center. As shown in the drawings, Figure 1As shown, the center point O of the rotary table is the origin of the machine tool coordinate system, and the reference point O1 of the geometric modeling of the blade 9 is the center of the tooling coordinate system. Specifically, the reference point O1 is located at the vertex of the end of the rotating center shaft 2, and after the blade 9 is installed, the reference point O1 is located at the center of the blade 9. In order to determine the position of the indexable blade peripheral edge grinding auxiliary tooling in the machining center, a certain method is needed to measure the coordinates of O1 relative to O in the X, Y, and Z axes of the machine tool coordinate system.

[0032] Specifically, the reference point determination method of the indexable blade peripheral edge grinding auxiliary tooling is as follows:

[0033] After installation is completed, first, it is necessary to correct whether the A-axis in the auxiliary tooling is parallel to the Y-axis of the machine tool coordinate system. Please refer to Figure 2 As shown, the base of the micrometer 30 is installed on the machine tool spindle 20, the head of the micrometer 30 is adjusted to contact the positioning surface 21, the machine tool spindle 20 is adjusted to move along the Y-axis direction, if there is a numerical fluctuation in the head, the rotary table of the machining center is adjusted according to the fluctuation value, the entire auxiliary tooling is rotated around the Z-axis direction with the rotary table, until there is no fluctuation in the micrometer data, at this time it is considered that the A-axis in the auxiliary tooling is parallel to the Y-axis of the machine tool coordinate system. Then the standard size precision cubic blade 9 is clamped between the rotating center shaft 2 and the pressing center shaft 4, and it is known that the edge length of the standard size precision cubic blade 9 is a, and the thickness is t. After loading, it is necessary to first detect the pose of the cubic blade 9 using the micrometer 30. The head of the micrometer 30 is adjusted to contact the relief surface 92 close to the machine tool spindle 20 side, the machine tool spindle 20 is controlled to move along the Y-axis direction, if there is a numerical fluctuation in the head, it is considered that the clamping pose of the blade 9 is incorrect at this time, and it needs to be unloaded and reloaded, and after repeated operation for several times, until there is no numerical fluctuation in the head, it is considered that the clamping pose of the blade 9 is correct. Then continue to keep the contact between the head of the micrometer 30 and the relief surface 92 close to the machine tool spindle 20 side, control the machine tool spindle 20 to move along the Z-axis direction, if there is a numerical fluctuation in the head, control the motor 3 to drive the rotating center shaft 2 to rotate, drive the blade 9 to rotate, until there is no numerical fluctuation in the head, it is considered that the relief surface 92 close to the machine tool spindle 20 side of the cubic blade 9 is parallel to the YOZ plane, and the rake surface 91 of the cubic blade 9 is parallel to the XOZ plane, the preparation work of measuring relative position is completed.

[0034] Please refer to Figure 3 As shown, the milling cutter 10 with a radius of R is installed on the machine tool spindle 20, the movement of the machine tool spindle 20 is adjusted, so that the end face of the milling cutter 10 is aligned with the relief surface 92 close to the machine tool spindle 20 side of the cubic blade 9, the axial coordinate value L in the X-axis direction of the machine tool coordinate system at this time is recorded, and the edge length of the standard cubic blade 9 is a, so the coordinate value of O1 relative to O in the X-axis direction can be determined

[0035] Similarly, the coordinate value of O1 relative to O in the Y-axis direction and the Z-axis direction also needs to be determined by the tool setting method. By adjusting the movement of the machine tool spindle 20, the side surface of the milling cutter 10 is aligned with the rake surface 91 of the cube blade 9, and the axial coordinate value Y in the X-axis direction in the machine tool coordinate system at this time is recorded. Combined with the milling cutter radius R and the blade thickness t, the coordinate value of O1 relative to O in the Y-axis direction can be determined as Adjust the movement of the machine tool spindle 20, align the side surface of the milling cutter 10 with the rear rake surface 92 of the cube blade 9 parallel to the XOY plane, record the axial coordinate value Z in the Z-axis direction in the machine tool coordinate system at this time, and combined with the milling cutter radius R and the blade edge length a, the coordinate value of O1 relative to O in the Z-axis direction can be determined as

[0036] The utility model discloses a kind of indexable blade peripheral edge grinding auxiliary tool, without special indexable blade peripheral edge grinding machine can realize indexable blade peripheral edge grinding process, simple operation, wide application range, and low cost.

[0037] The utility model discloses a kind of indexable blade peripheral edge grinding auxiliary tool, and the part not involved is same with prior art or can be realized using prior art.

[0038] The above embodiment is only used to further illustrate the utility model of a kind of indexable blade peripheral edge grinding auxiliary tool, but the utility model is not limited to the embodiment, any simple modification, equivalent change and modification according to the technical essence of the utility model to the above embodiment, all fall into the protection scope of the utility model technical scheme.

Claims

1. An indexable insert peripheral edge sharpening aid characterized by: The utility model relates to a double -sided top module of machining center, including main frame, first top module and second top module, the main frame is installed on the rotary worktable of machining center, first top module and second top module are installed on the main frame respectively, first top module includes rotary top axle and with rotary top axle drive connection's first drive piece, second top module includes the compression top axle and with compression top axle drive connection's second drive piece, the end of rotary top axle and the end of compression top axle are opposite arrangement, blade is installed in the end of rotary top axle, second drive piece drives compression top axle moves to rotary top axle to make the end of compression top axle compresses blade, first drive piece drives rotary top axle rotates to make rotary top axle drive blade rotates, the rotation axis of rotary top axle is perpendicular with the rotation axis of rotary worktable of machining center.

2. The indexable insert peripheral sharpening aid tool according to claim 1, characterized in that: The first drive piece and the second drive piece are fixedly installed on the main frame, the first drive piece is connected with the rotary top axle through the first transmission assembly, and the second drive piece is connected with the compression top axle through the second transmission assembly.

3. The indexable insert peripheral sharpening aid tool according to claim 2, characterized in that: The first transmission assembly includes a coupling and a speed reducer, the output end of the motor is connected with the input end of the speed reducer, the output end of the speed reducer is connected with one end of the coupling, and the other end of the coupling is connected with the rotary top axle.

4. The indexable insert peripheral sharpening aid tool according to claim 2, characterized in that: The second transmission assembly includes a sliding support frame, the compression top axle is fixed on the sliding support frame, the output end of the cylinder is connected with the sliding support frame, and the sliding support frame is in sliding fit with the main frame.

5. The indexable insert peripheral sharpening aid tool according to claim 4, characterized in that: The main frame is provided with a linear guide rail extending along the moving direction of the compression top axle, and the sliding support frame is in sliding connection with the linear guide rail.

6. The indexable insert peripheral sharpening aid tool according to claim 1 or 2, characterized in that: The main frame is provided with a support seat, the first drive piece is fixedly installed on the support seat, and the rotary top axle is in rotary fit with the support seat.

7. The indexable insert peripheral sharpening aid tool according to claim 6, characterized in that: A bearing is arranged between the rotary top axle and the support seat.

8. The indexable insert peripheral edge sharpening aid tool according to claim 1 or 2, characterized in that: The main frame is provided with a support plate, and the second drive piece is fixedly installed on the support plate.

9. The indexable insert peripheral sharpening aid tool according to claim 1, wherein: The axis of the rotary top axle coincides with the axis of the compression top axle.

10. The indexable insert peripheral sharpening aid tool according to claim 1, characterized in that: An adjusting positioning surface is arranged on the rotary top axle, and the adjusting positioning surface is parallel to the axis of the rotary top axle.

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