CN112388403B - Numerical control grinding machine gulleting machine - Google Patents

Numerical control grinding machine gulleting machine Download PDF

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Publication number
CN112388403B
CN112388403B CN202011043468.0A CN202011043468A CN112388403B CN 112388403 B CN112388403 B CN 112388403B CN 202011043468 A CN202011043468 A CN 202011043468A CN 112388403 B CN112388403 B CN 112388403B
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Prior art keywords
axis
numerical control
control motor
machine
workbench
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CN112388403A (en
Inventor
戴振纲
马炳国
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Guangdong Yanji Precision Hardware Co ltd
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Guangdong Yanji Precision Hardware Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/60—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of tools not covered by the preceding subgroups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/02—Frames; Beds; Carriages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/02—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables
    • B24B47/04—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables by mechanical gearing only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B51/00—Arrangements for automatic control of a series of individual steps in grinding a workpiece
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

The invention discloses a tooth punching machine of a numerical control grinding machine, which is a four-shaft precise machine tool device and comprises a single-shaft toothed numerical control grinding machine type, has the functions of adjusting the square distance of an X shaft and a Y shaft, adjusting the height of a Z shaft and adjusting the rotation of a circular processing cutter arranged on a rotating shaft of a jig, realizes the distance adjustment of a rotating grinding wheel which is vertically arranged on a high-precision grinding wheel main shaft driving shaft at 90 degrees in the Y shaft direction and the height adjustment of the Z shaft direction, and the real-time linkage adjustment of the distance adjustment of the circular processing cutter and the rotating shaft of the jig in the X shaft direction, can realize the linkage processing of two shafts, three shafts and four shafts, has very obvious effect on the cutter with special-shaped edges in the multi-shaft processing when the high-precision grinding wheel main shaft driving shaft and the Z shaft are mutually vertical, and can grind the complicated special-shaped edges of the cutter, and the special-shaped teeth and the special-shaped tooth mouths can be ground, the machining precision can be accurate to 0.01mm, and the machining efficiency and the machining precision are effectively improved.

Description

Numerical control grinding machine gulleting machine
Technical Field
The invention relates to the technical field of numerical control grinding machine equipment, in particular to a numerical control grinding machine tooth punching machine which realizes grinding of a special-shaped knife edge or a multi-section arc knife edge and the like of a circular processing cutter by adopting multi-shaft linkage.
Background
In the prior art, grinding machine equipment for grinding a cutter can grind a cutter with high precision and small surface roughness and can grind the cutter with high efficiency, when the cutter is ground, a grinding wheel rotating at high speed is usually used for grinding, however, in the grinding process, the traditional numerical control grinding machine equipment can only machine a linear notch, an arc notch and a plane of the cutter, and is difficult to machine special-shaped cutters, particularly special tooth mouths and multi-section arc-shaped cutting edges, and because a fixed grinding wheel structure is adopted for grinding, namely, the fixed grinding wheel structure can not adjust corresponding distance or height in XYZ direction and grinding direction, and the machining range is limited, so that the grinding range cannot be expanded, and the fixed numerical control grinding machine equipment can only adapt to the machining range of a small part or a specific cutter.
Therefore, there is a need to develop a numerical control grinding machine for grinding complicated irregular teeth and irregular tooth mouths of a circular processing tool, which can improve the processing efficiency and the processing precision and enlarge the size processing range of the circular processing tool.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a numerical control grinding machine which is a four-axis precision machine tool device and comprises a single-axis toothed numerical control grinding machine type, has the functions of adjusting the distance between an X axis and a Y axis, adjusting the height of a Z axis direction and adjusting the rotation of a round processing cutter on a rotating shaft of a jig, realizes the distance adjustment of a rotating grinding wheel which is vertically arranged on a high-precision grinding wheel spindle driving shaft at 90 degrees in the Y axis direction and the height adjustment of the Z axis direction, and real-time linkage adjustment of the distance adjustment of the round processing cutter and the rotating shaft of the jig in the X axis direction, can realize linkage processing of two axes, three axes and four axes during processing, has obvious effect on the cutter with special-shaped cutting edges during multi-axis processing when the high-precision grinding wheel spindle driving shaft is mutually vertical to the Z axis and the rotating grinding wheel is also mutually vertical to the round processing cutter, the complex special-shaped edge grinding can be carried out on the cutter, the grinding processing can also be carried out on the special-shaped teeth and the special-shaped tooth openings, the processing precision can be accurate to 0.01mm, and the processing efficiency and the processing precision are effectively improved.
The technical scheme adopted by the invention for solving the technical problems is as follows: a numerical control grinding machine tooth punching machine comprises a grinding machine table, an X-axis workbench, a Y-axis workbench, a Z-axis workbench, a high-precision grinding wheel spindle driving numerical control motor, a high-precision grinding wheel spindle driving shaft and a rotating grinding wheel, wherein the X-axis workbench and the Y-axis workbench are arranged on the grinding machine table, the Z-axis workbench is arranged on the Y-axis workbench in a standing mode, the high-precision grinding wheel spindle driving numerical control motor is transversely arranged on the Z-axis workbench and forms 90-degree vertical arrangement with the Z-axis workbench, the high-precision grinding wheel spindle driving shaft is arranged at the power output end of the high-precision grinding wheel spindle driving numerical control motor, and the rotating grinding wheel is arranged on the high-precision grinding wheel spindle driving shaft and forms 90-degree vertical arrangement with the high-precision grinding wheel spindle driving shaft; on the whole, the rotary grinding wheel has the functions of adjusting the front-back distance in the Y-axis direction, adjusting the up-down distance in the Z-axis direction and adjusting the left-right distance in the X-axis direction of the circular machining tool, and can be used for processing in a two-axis, three-axis and four-axis linkage manner, so that the special-shaped tooth mouth and the multi-section arc-shaped cutting edge can be accurately processed, the processing level is high, and the application range is wide; according to different shapes or sizes of the tooth profile, the tooth mouth and the cutting edge, a proper rotating grinding wheel is selected for grinding.
An X-axis machine frame is mounted at the top of the X-axis workbench, a double-rail X-axis guide rail bar is mounted at the top of the X-axis machine frame, an X-axis sliding plate matched with the double-rail X-axis guide rail bar is mounted between the double-rail X-axis guide rail bars, an X-axis numerical control motor which is mounted in the X-axis machine frame and drives the X-axis sliding plate to slide is mounted on the X-axis sliding plate, a jig numerical control motor and a jig rotating disc mounted at the output end of the jig numerical control motor are mounted on the X-axis sliding plate, and a circular machining cutter disc is mounted on the jig rotating disc; the structure on the X-axis frame is a structure moving in the X-axis direction, an X-axis sliding plate can slide in the X-axis direction and drive a jig rotating disc to slide in the X-axis direction, sliding of a circular machining tool in the X-axis direction can be achieved, the circular machining tool is installed on the jig rotating disc, the jig rotating disc is driven by a jig numerical control motor to drive the circular machining tool to horizontally rotate, after a knife edge is machined, the jig numerical control motor controls the jig rotating disc and the circular machining tool to finely adjust and rotate, grinding of a next knife edge is continued, and the Y-axis structure and the Z-axis structure do not need to be adjusted.
A Y-axis machine frame is arranged on the Y-axis workbench, a Y-axis numerical control motor is arranged on the Y-axis machine frame, and a power output end of the Y-axis numerical control motor is fixedly arranged with the Z-axis workbench; the structure of the Y-axis frame is a structure with a Y-axis transverse movement, and the sliding of the whole Z-axis workbench in the Y-axis direction can be controlled.
A Z-axis numerical control motor is arranged in the Z-axis workbench, a numerical control motor base is arranged on the high-precision grinding wheel spindle driving numerical control motor, and the power output end of the Z-axis numerical control motor is connected with the numerical control motor base in an installing mode and drives the numerical control motor base to move up and down; the structure of the Z axis is a Z axis longitudinal movement structure, and the vertical height adjustment of the rotating grinding wheel and the distance between the rotating grinding wheel and the circular processing cutter head can be controlled by controlling the driving of the high-precision grinding wheel spindle and the vertical movement of the numerical control motor, so that the processing depth, angle and the like of the cutter edge can be adjusted.
The Z-axis workbench is provided with a sensing detection assembly for sensing the depth of the knife edge of the circular processing cutter, the sensing detection assembly comprises a support arm extending out of the Z-axis workbench, the support arm is provided with a photoelectric sensing switch and a sensing arm for sensing the depth of the knife edge of the processed circular processing cutter, the sensing end part of the sensing arm is provided with a sensing contact, the distance between the sensing contact and the surface of the knife edge depth is smaller than the distance between the sensing contact and the unmachined surface of the circular processing cutter, and the Z-axis workbench is also provided with a controller for receiving a command signal of the photoelectric sensing switch and controlling the Z-axis numerical control motor to output power to drive the numerical control motor base to be finely adjusted up and down; the sensing arm is movably arranged on the bracket arm and can freely swing left and right when being impacted by the edge of the circular processing cutter head, the sensing arm is composed of an upper section and a lower section, and the lower section can adjust the vertical angle relative to the upper section.
The design that the distance between the sensing contact and the knife edge depth surface is smaller than the distance between the sensing contact and the unmachined surface of the circular processing cutter head can feed back a signal to the photoelectric sensing switch in time, and when the knife edge depth surface is not contacted with the sensing contact, the knife edge depth is proved to be sufficient; when the sensing contact contacts with the surface of the knife edge depth, the situation that the knife edge depth is insufficient is proved, the sensing contact feeds back a signal to the photoelectric sensing switch, then the photoelectric sensing switch sends an instruction signal to the controller to control the Z-axis numerical control motor to work, and the numerical control motor base and the high-precision grinding wheel spindle are driven to drive downward fine adjustment of the numerical control motor, namely the downward fine adjustment of the rotating grinding wheel is controlled to realize the depth of grinding into the circular processing tool, and the grinding is carried out to the knife edge depth meeting the requirements. The controller can accurately control whether to drive the Z-axis numerical control motor to work and rotate the grinding depth of the grinding wheel or not through the instruction signal of the photoelectric sensing switch, can send an opening delay instruction signal and a closing delay instruction signal to the Z-axis numerical control motor, can enable the grinding depth of the round processing cutter to be proper and smooth in operation through adjusting the opening delay instruction signal and the closing delay instruction signal, and can continuously and accurately adjust the grinding depth to be proper.
Furthermore, the power output end of the X-axis numerical control motor is provided with an X-axis screw rod which is connected with an X-axis sliding plate in a matched mode, the power output end of the Y-axis numerical control motor is provided with a Y-axis screw rod which is connected with a Z-axis workbench in a directly installed and matched mode, two outer sides of the bottom of the Z-axis workbench are respectively provided with a Z-axis sliding plate with a sliding boss, and a groove which is connected with the sliding boss in a matched and installed mode is formed in the Y-axis rack. The X-axis numerical control motor drives the X-axis sliding plate to slide through the X-axis screw rod, the Y-axis numerical control motor directly drives the whole Z-axis workbench to slide through the Y-axis screw rod, direct transmission of power is achieved, power loss is small, the power directly acts on the corresponding sliding piece, and the direct high-efficiency and quick response are achieved; in addition, the Z-axis workbench slides along the Y-axis direction of the Z-axis workbench through the matching of the sliding boss of the Z-axis sliding plate and the groove of the Y-axis rack, and the Z-axis workbench is convenient and quick and has a simple structure.
Furthermore, both ends of the X-axis frame are provided with limit stops for limiting the sliding distance of the X-axis sliding plate, and the inner side of each limit stop is provided with a cushion pad for preventing the X-axis sliding plate from being damaged. The limiting stop block is used for limiting the sliding range of the X-axis sliding plate and preventing the X-axis sliding plate from falling off from the X-axis guide rail bar, the height of the limiting stop block is higher than the mounting height of the X-axis guide rail bar, and the buffering cushion is used for preventing the X-axis sliding plate from directly colliding with the limiting stop block to cause damage; meanwhile, the limiting baffles are arranged at the two ends of the X-axis rack, so that the circular machining tools can be conveniently arranged on the jig rotating disc in the positions of the two ends of the X-axis rack, and the installation and the disassembly of the circular machining tools cannot be limited by the overall structure space of the Z axis.
Or the power output end of the X-axis numerical control motor is directly matched and connected with the X-axis sliding plate, the power output end of the Y-axis numerical control motor is directly matched and connected with the Z-axis workbench, Y-axis guide rail strips are respectively arranged on two sides of the top of the Y-axis rack, and the Z-axis workbench is matched and installed with the Y-axis guide rail strips to realize sliding fit connection. The power output of the X-axis numerical control motor and the power output of the Y-axis numerical control motor are directly linked to the corresponding X-axis sliding plate and the Z-axis workbench, and the corresponding guide rail strips are matched to form a sliding track, so that the power output is direct, the efficiency is high, and the power loss is low.
Furthermore, the X-axis numerical control motor is arranged at one end of the X-axis rack and is higher than the X-axis guide rail bar, and the other end of the X-axis rack is provided with a limiting head which is higher than the X-axis guide rail bar and is used for limiting the sliding distance of the X-axis sliding plate. The installation height of the X-axis numerical control motor is higher than the limiting effect of the X-axis guide rail strip as limiting the sliding of the X-axis sliding plate, and the limiting head is also used as the limiting effect of the X-axis sliding plate, so that the limiting function of the two ends of the X-axis sliding plate on the X-axis rack is realized.
Furthermore, the grinding precision of the rotary grinding wheel to the circular processing cutter is 0.01 mm. The linkage adjustment in each axial direction and the matching of the rotating grinding wheel are used for grinding the 90-degree vertical grinding of the circular processing cutter, and the appropriate rotating grinding wheel is selected for grinding according to different shapes or sizes of the cutting edges, so that the processing precision of the cutting edge can reach 0.01mm, and the processing precision is high. Because the grinding wheel installed on the traditional grinding equipment is not adjustable in height and distance, the 90-degree vertical machining characteristic of a circular machining angle is not provided, a complicated special-shaped knife edge cannot be ground or cannot be ground in place, and even if the grinding wheel with high machining precision is selected, the machining precision of 0.01mm is difficult to achieve.
Further, the rotating speed of the high-precision grinding wheel spindle driving numerical control motor is 2800rpm, the diameter of the jig rotating disc is 170mm, and the maximum diameter of the circular machining cutter disc arranged on the jig rotating disc is 580-850 mm. Because the high-precision grinding wheel spindle drives the rotational speed of the numerical control motor and is high, the machining speed is fast, the efficiency is high, the grinding device is also applicable to and fast grinds large-scale circular machining cutter discs, and because the distance and the height can be adjusted in a multi-axis linkage manner, the machining range from the circular clamp to the cutter disc is expanded, and the grinding machining can be carried out on the circular machining cutter disc with the maximum diameter of 580 plus 850 mm.
Furthermore, X-axis sliding blocks are fixedly mounted on two sides of the X-axis sliding plate and are matched with the X-axis guide rail strips to realize sliding.
In conclusion, the tooth punching machine of the numerical control grinding machine is a four-axis precision machine tool device, comprises a single-axis toothed numerical control grinding machine type, has the functions of adjusting the distance between an X axis and a Y axis in a square manner, adjusting the height in a Z axis direction, and rotatably adjusting a round processing cutter arranged on a jig rotating shaft, realizes the distance adjustment of a rotating grinding wheel which is arranged on a high-precision grinding wheel spindle driving shaft and is perpendicular to the high-precision grinding wheel spindle driving shaft by 90 degrees in the Y axis direction and the height adjustment of the Z axis direction, and the real-time linkage adjustment of the distance adjustment of the round processing cutter and the jig rotating shaft in the X axis direction, can realize the linkage processing of two axes, three axes and four axes during processing, has very obvious effect on the cutter with special-shaped edges in the multi-axis processing that the rotating grinding wheel and the round processing cutter are also perpendicular to each other, and can carry out complex special-shaped edge grinding of the cutter, and the special-shaped teeth and the special-shaped tooth mouths can be ground, the machining precision can be accurate to 0.01mm, and the machining efficiency and the machining precision are effectively improved.
Drawings
Fig. 1 is a schematic structural view of a numerical control grinding machine gulleting machine according to embodiment 1 of the invention;
FIG. 2 is an exploded view of a numerically controlled grinder gulleting machine according to embodiment 1 of the present invention;
FIG. 3 is a schematic view of another direction of a numerically controlled grinder gulleting machine according to embodiment 1 of the present invention;
fig. 4 is a schematic structural diagram of the sensing assembly.
FIG. 5 is a schematic structural diagram of a numerical control grinding machine gulleting machine according to embodiment 2 of the invention;
FIG. 6 is an exploded view of a numerically controlled grinder gulleting machine according to embodiment 2 of the present invention;
FIG. 7 is a schematic view of another direction of a numerically controlled grinder gulleting machine according to embodiment 2 of the present invention;
FIG. 8 is a top view of a numerically controlled grinder gulleting machine according to embodiment 2 of the present invention;
FIG. 9 is a front view of a numerically controlled grinder gulleting machine according to embodiment 2 of the present invention;
the names of the reference numbers in the drawings are as follows: 1, grinding machine table; 2, an X-axis workbench; 3, a Y-axis workbench; 4, a Z-axis workbench; 5, driving a numerical control motor by a high-precision grinding wheel spindle; 6, driving a high-precision grinding wheel spindle; 7, rotating the grinding wheel; 8, a circular processing cutter; 9, an X-axis frame; 10, X-axis guide rail bar; 11, an X-axis slide; 12, an X-axis numerical control motor; 13, rotating the jig disc; 14, a Y-axis frame; 15, a Y-axis numerical control motor; 16, a Z-axis numerical control motor; 17, a numerical control motor base; 18, X-axis screw; 19, Y-axis screw; 20, sliding a boss; 21, a Z-axis slide plate; 22, a groove; 23, limit stops; 24, a cushion pad; 25, an X-axis slide; 26, Y-axis guide rail bar; 27, a limiting head; 28, a jig numerical control motor; 29, an inductive detection assembly; 30, a support arm; 31, a photoelectric sensing switch; 32, a sensing arm; and 33, sensing the contact.
Detailed Description
Example 1
A tooth punching machine of a numerically controlled grinding machine described in this embodiment 1, as shown in fig. 1, fig. 2, and fig. 3, includes a grinding machine table 1, an X-axis table 2 and a Y-axis table 3 disposed on the grinding machine table, a Z-axis table 4 standing on the Y-axis table, a high-precision grinding wheel spindle driving numerically controlled motor 5 transversely disposed on the Z-axis table and forming a 90-degree vertical arrangement with the Z-axis table, a high-precision grinding wheel spindle driving shaft 6 disposed at a power output end of the high-precision grinding wheel spindle driving numerically controlled motor, and a rotating grinding wheel 7 disposed on the high-precision grinding wheel spindle driving shaft and forming a 90-degree vertical arrangement with the high-precision grinding wheel spindle driving shaft; on the whole, the rotary grinding wheel has the functions of adjusting the front-back distance in the Y-axis direction and the up-down distance in the Z-axis direction, and adjusting the left-right distance in the X-axis direction of the circular machining tool 8, so that the two-axis, three-axis and four-axis linkage machining can be realized during machining, the accurate machining of the special-shaped tooth mouth and the multi-section arc-shaped cutting edge is realized, the machining level is high, and the application range is wide; according to different shapes or sizes of the tooth profile, the tooth mouth and the cutting edge, a proper rotating grinding wheel is selected for grinding.
An X-axis rack 9 is installed at the top of the X-axis workbench, a double-rail X-axis guide rail bar 10 is installed at the top of the X-axis rack, an X-axis sliding plate 11 matched with the double-rail X-axis guide rail bar is installed between the double-rail X-axis guide rail bars, an X-axis numerical control motor 12 which is installed in the X-axis rack and drives the X-axis sliding plate to slide is installed, a jig numerical control motor 28 and a jig rotating disc 13 installed at the output end of the jig numerical control motor are installed on the X-axis sliding plate, and a circular machining cutter disc is installed on the jig rotating disc; the structure on the X-axis frame is a structure moving in the X-axis direction, an X-axis sliding plate can slide in the X-axis direction and drive a jig rotating disc to slide in the X-axis direction, sliding of a circular machining tool in the X-axis direction can be achieved, the circular machining tool is installed on the jig rotating disc, the jig rotating disc is driven by a jig numerical control motor to drive the circular machining tool to horizontally rotate, after a knife edge is machined, the jig numerical control motor controls the jig rotating disc and the circular machining tool to finely adjust and rotate, grinding of a next knife edge is continued, and the Y-axis structure and the Z-axis structure do not need to be adjusted.
A Y-axis rack 14 is arranged on the Y-axis workbench, a Y-axis numerical control motor 15 is arranged on the Y-axis rack, and the power output end of the Y-axis numerical control motor is fixedly arranged with the Z-axis workbench; the structure of the Y-axis frame is a structure with a Y-axis transverse movement, and the sliding of the whole Z-axis workbench in the Y-axis direction can be controlled.
A Z-axis numerical control motor 16 is arranged in the Z-axis workbench, a numerical control motor base 17 is arranged on the high-precision grinding wheel spindle driving numerical control motor, and the power output end of the Z-axis numerical control motor is connected with the numerical control motor base in an installing mode and drives the Z-axis numerical control motor to move up and down; the structure of the Z axis is a Z axis longitudinal movement structure, and the vertical height adjustment of the rotating grinding wheel and the distance between the rotating grinding wheel and the circular processing cutter head can be controlled by controlling the driving of the high-precision grinding wheel spindle and the vertical movement of the numerical control motor, so that the processing depth, angle and the like of the cutter edge can be adjusted.
As shown in fig. 4, a sensing detection assembly 29 for sensing the depth of the knife edge of the circular processing cutter is arranged on the Z-axis workbench, the sensing detection assembly comprises a support arm 30 extending out from the Z-axis workbench, a photoelectric sensing switch 31 and a sensing arm 32 for sensing the depth of the knife edge of the processed circular processing cutter are arranged on the support arm, a sensing contact 33 is arranged at the sensing end of the sensing arm, the distance between the sensing contact and the knife edge depth surface is smaller than the distance between the sensing contact and the unprocessed surface of the circular processing cutter, and a controller for receiving a photoelectric sensing switch instruction signal and controlling the output power of the Z-axis numerical control motor to drive the numerical control motor base to be finely adjusted up and down is also arranged on the Z-axis workbench; the sensing arm is movably arranged on the bracket arm and can freely swing left and right when being impacted by the edge of the circular processing cutter head, the sensing arm is composed of an upper section and a lower section, and the lower section can adjust the vertical angle relative to the upper section.
The distance between the sensing contact and the knife edge depth surface is smaller than the distance between the sensing contact and the unprocessed surface of the circular processing cutter head, so that a signal can be fed back to the photoelectric sensing switch in time, and when the knife edge depth surface is not in contact with the sensing contact, the knife edge depth is proved to be sufficient; when the sensing contact contacts with the knife edge depth surface, the situation that the knife edge depth is insufficient is proved, the sensing contact feeds back a signal to the photoelectric sensing switch, then the photoelectric sensing switch sends an instruction signal to the controller to control the Z-axis numerical control motor to work, and the numerical control motor base and the high-precision grinding wheel spindle are driven to drive downward fine adjustment of the numerical control motor, namely, the downward fine adjustment of the rotating grinding wheel is controlled to realize the depth of grinding into a circular processing tool, and the grinding is carried out to obtain the knife edge depth meeting the requirements. The controller can accurately control whether to drive the Z-axis numerical control motor to work and rotate the grinding depth of the grinding wheel or not through the instruction signal of the photoelectric sensing switch, can send an opening delay instruction signal and a closing delay instruction signal to the Z-axis numerical control motor, can enable the grinding depth of the round processing cutter to be proper and smooth in operation through adjusting the opening delay instruction signal and the closing delay instruction signal, and can continuously and accurately adjust the grinding depth to be proper.
In this embodiment 1, the power output end of the X-axis numerical control motor is provided with an X-axis screw 18 and is connected with an X-axis sliding plate in a matching manner, the power output end of the Y-axis numerical control motor is provided with a Y-axis screw 19 and is connected with a Z-axis workbench in a direct mounting and matching manner, two outer sides of the bottom of the Z-axis workbench are respectively provided with a Z-axis sliding plate 21 with a sliding boss 20, and a Y-axis frame is provided with a groove 22 connected with the sliding boss in a matching and mounting manner. The X-axis numerical control motor drives the X-axis sliding plate to slide through the X-axis screw rod, the Y-axis numerical control motor directly drives the whole Z-axis workbench to slide through the Y-axis screw rod, direct transmission of power is achieved, power loss is small, the power directly acts on the corresponding sliding piece, and the direct high-efficiency and quick response are achieved; in addition, the Z-axis workbench slides along the Y-axis direction of the Z-axis workbench through the matching of the sliding boss of the Z-axis sliding plate and the groove of the Y-axis rack, and the Z-axis workbench is convenient and quick and has a simple structure.
In this embodiment 1, the two ends of the X-axis frame are provided with limit stoppers 23 for limiting the sliding distance of the X-axis slide plate, and the inner sides of the limit stoppers are provided with cushions 24 for preventing the X-axis slide plate from being damaged. The limiting stop block is used for limiting the sliding range of the X-axis sliding plate and preventing the X-axis sliding plate from falling off from the X-axis guide rail bar, the height of the limiting stop block is higher than the installation height of the X-axis guide rail bar, and the buffering cushion is used for preventing the X-axis sliding plate from directly colliding with the limiting stop block to cause damage; meanwhile, the limiting baffles are arranged at the two ends of the X-axis rack, so that the circular machining tools can be conveniently arranged on the jig rotating disc in the positions of the two ends of the X-axis rack, and the installation and the disassembly of the circular machining tools cannot be limited by the overall structure space of the Z axis.
In the embodiment 1, the grinding precision of the rotary grinding wheel to the circular processing tool is 0.01 mm. The linkage adjustment in each axial direction and the matching of the rotating grinding wheel are used for grinding the 90-degree vertical grinding of the circular processing cutter, and the appropriate rotating grinding wheel is selected for grinding according to different shapes or sizes of the cutting edges, so that the processing precision of the cutting edge can reach 0.01mm, and the processing precision is high. Because the grinding wheel installed on the traditional grinding equipment is not adjustable in height and distance, the 90-degree vertical machining characteristic of a circular machining angle is not provided, a complicated special-shaped knife edge cannot be ground or cannot be ground in place, and even if the grinding wheel with high machining precision is selected, the machining precision of 0.01mm is difficult to achieve.
In this embodiment 1, the rotation speed of the high-precision grinding wheel spindle driving numerical control motor is 2800rpm, the diameter of the jig rotating disc is 170mm, and the maximum diameter of the circular machining cutter head mounted on the jig rotating disc is 580 mm. The high-precision grinding wheel spindle drives the numerical control motor, so that the rotating speed is high, the machining speed is high, the efficiency is high, the high-precision grinding wheel spindle is also applicable to and capable of quickly grinding large circular machining cutter discs, the distance and the height can be adjusted in a multi-axis linkage mode, the machining range from the circular clamp to the cutter disc is expanded, and the circular machining cutter disc with the maximum diameter of 580mm can be ground.
In this embodiment 1, the X-axis sliding plate is fixedly mounted with X-axis sliding blocks 25 on both sides thereof to cooperate with the X-axis guide rail to slide.
Example 2
In embodiment 2, the substitution change is performed on the basis of embodiment 1, which is specifically as follows:
as shown in fig. 5, 6, 7, 8 and 9, the power output end of the X-axis numerical control motor 12 is directly connected with the X-axis sliding plate 11 in a matching manner, the power output end of the Y-axis numerical control motor 15 is directly connected with the Z-axis worktable 4 in a matching manner, the two sides of the top of the Y-axis frame 14 are respectively provided with a Y-axis guide rail 26, and the Z-axis worktable and the Y-axis guide rail are installed in a matching manner to realize sliding matching connection. The power output of the X-axis numerical control motor and the power output of the Y-axis numerical control motor are directly linked to the corresponding X-axis sliding plate and the Z-axis workbench, and the corresponding guide rail strips are matched to form a sliding track, so that the power output is direct, the efficiency is high, and the power loss is low.
In this embodiment 2, the X-axis numerical control motor is mounted on one end of the X-axis frame and is higher than the X-axis guide rail bar 10, and the other end of the X-axis frame is mounted with a limiting head 27 which is higher than the X-axis guide rail bar and is used for limiting the sliding distance of the X-axis sliding plate. The installation height of the X-axis numerical control motor is higher than the limiting effect of the X-axis guide rail strip as limiting the sliding of the X-axis sliding plate, and the limiting head is also used as the limiting effect of the X-axis sliding plate, so that the limiting function of the two ends of the X-axis sliding plate on the X-axis rack is realized.
In this embodiment 2, the rotation speed of the high-precision grinding wheel spindle driving numerical control motor 5 is 2800rpm, the diameter of the jig rotating disc 13 is 170mm, and the maximum diameter of the circular machining cutter head 8 mounted on the jig rotating disc is 850 mm. Compared with the maximum diameter 580mm of the circular processing cutter head in the embodiment 1, the structure and the structure of the embodiment 2 have larger processing range specificity, and the circular processing cutter head with the maximum diameter 850mm can be ground.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the structure of the present invention in any way. Any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims (8)

1. A numerical control grinding machine tooth punching machine is characterized by comprising a grinding machine table, an X-axis workbench, a Y-axis workbench, a Z-axis workbench, a high-precision grinding wheel spindle driving numerical control motor, a high-precision grinding wheel spindle driving shaft and a rotating grinding wheel, wherein the X-axis workbench and the Y-axis workbench are arranged on the grinding machine table;
an X-axis rack is mounted at the top of the X-axis workbench, a double-rail X-axis guide rail bar is mounted at the top of the X-axis rack, an X-axis sliding plate matched with the double-rail X-axis guide rail bar is mounted between the double-rail X-axis guide rail bars, an X-axis numerical control motor which is mounted in the X-axis rack and drives the X-axis sliding plate to slide is mounted on the X-axis sliding plate, a jig numerical control motor and a jig rotating disc mounted at the output end of the jig numerical control motor are mounted on the X-axis sliding plate, and a circular machining cutter disc is mounted on the jig rotating disc;
a Y-axis machine frame is arranged on the Y-axis workbench, a Y-axis numerical control motor is arranged on the Y-axis machine frame, and a power output end of the Y-axis numerical control motor is fixedly arranged with the Z-axis workbench;
a Z-axis numerical control motor is installed in the Z-axis workbench, a numerical control motor base is installed on the high-precision grinding wheel spindle driving numerical control motor, and a power output end of the Z-axis numerical control motor is connected with the numerical control motor base in an installing mode and drives the Z-axis numerical control motor to move up and down;
the Z-axis workbench is provided with a sensing detection assembly for sensing the depth of the knife edge of the circular processing cutter, the sensing detection assembly comprises a support arm extending out of the Z-axis workbench, the support arm is provided with a photoelectric sensing switch and a sensing arm for sensing the depth of the knife edge of the processed circular processing cutter, the sensing end part of the sensing arm is provided with a sensing contact, the distance between the sensing contact and the surface of the knife edge depth is smaller than the distance between the sensing contact and the unmachined surface of the circular processing cutter, and the Z-axis workbench is also provided with a controller for receiving a command signal of the photoelectric sensing switch and controlling the Z-axis numerical control motor to output power to drive the numerical control motor base to be finely adjusted up and down; the sensing arm is movably arranged on the bracket arm and can freely swing left and right when being impacted by the edge of the circular processing cutter head, the sensing arm is composed of an upper section and a lower section, and the lower section can adjust the vertical angle relative to the upper section.
2. The numerical control grinding machine gulleting machine of claim 1, wherein the power output end of the X-axis numerical control motor is provided with an X-axis screw rod which is in fit connection with an X-axis sliding plate, the power output end of the Y-axis numerical control motor is provided with a Y-axis screw rod which is in direct fit connection with a Z-axis workbench, two outer sides of the bottom of the Z-axis workbench are respectively provided with a Z-axis sliding plate with a sliding boss, and a groove which is in fit connection with the sliding boss is arranged on a Y-axis rack.
3. The numerical control grinding machine gulleting machine as claimed in claim 2, wherein both ends of the X-axis machine frame are provided with limit stoppers for limiting the sliding distance of the X-axis slide plate, and the inner sides of the limit stoppers are provided with cushions for preventing the X-axis slide plate from being damaged.
4. The numerical control grinding machine gulleting machine of claim 1, wherein a power output end of the X-axis numerical control motor is directly connected with the X-axis sliding plate in a matched mode, a power output end of the Y-axis numerical control motor is directly connected with the Z-axis workbench in a matched mode, two sides of the top of the Y-axis rack are respectively provided with a Y-axis guide rail bar, and the Z-axis workbench is installed with the Y-axis guide rail bars in a matched mode to achieve sliding fit connection.
5. The numerical control grinding machine gulleting machine as claimed in claim 4, wherein the X-axis numerical control motor is mounted on one end of the X-axis frame and is higher than the X-axis guide rail bar, and the other end of the X-axis frame is mounted with a limiting head which is higher than the X-axis guide rail bar and is used for limiting the sliding distance of the X-axis sliding plate.
6. The numerical control grinding machine gulleting machine of any one of claims 1 to 5, wherein the grinding precision of the rotary grinding wheel to the circular processing cutter head is 0.01 mm.
7. The numerical control grinding machine tooth punching machine as claimed in claim 6, wherein the rotation speed of the high-precision grinding wheel spindle driving numerical control motor is 2800rpm, the diameter of the jig rotating disc is 170mm, and the maximum diameter of the circular machining cutter disc mounted on the jig rotating disc is 580mm and 850 mm.
8. The numerical control grinding machine gulleting machine of claim 7, wherein X-axis sliding blocks are fixedly mounted on two sides of the X-axis sliding plate and are matched with the X-axis guide rail in a mounting mode to achieve sliding.
CN202011043468.0A 2020-09-28 2020-09-28 Numerical control grinding machine gulleting machine Active CN112388403B (en)

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CN2908028Y (en) * 2006-05-18 2007-06-06 吴鋆 Sharpener special for milling cutter
CN201415292Y (en) * 2009-04-27 2010-03-03 唐海波 Automatic gear grinding machine for alloy circular saw blade
CN201410631Y (en) * 2009-06-19 2010-02-24 天津市精诚机床制造有限公司 Layout of five-axis numerical control blade milling machine with curve-tooth bevel gear milling cutter
CN102151909B (en) * 2011-03-18 2012-12-05 陕西秦川机械发展股份有限公司 Large-scale numerical control gear machining machine tool
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