JP2008142878A - Copy grinding device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem of varied and uneven finishing, and high defective fraction due to deburring finishing by manual procedures, which is adopted since an expensive NC machine tool increases the cost of work. <P>SOLUTION: This copy grinding device is provided with a main motor 1, a first rotary shaft 2, a first bevel gear 3, a cam mechanism 4 consisting of a pair of cam plates 4A, 4B, a second bevel gear 5, a second rotary shaft 6, a placing base 7, a master M, a workpiece W, a copying contact part 8, a grinding device body 9, a rotary tool 10 for grinding, a control roller 11, a control lever 12, an air valve 13, and an air tube 14. The air tube 14 is connected to an action mechanism 15, and moreover, the pair of cam plates 4A, 4B form large diameter peripheral parts 4Aa, 4Ba and small diameter peripheral parts 4Ac, 4Bc via steps 4Ab, 4Bb. The air valve 13 is opened or closed by the steps during one rotation of the first rotary shaft 2, and the action mechanism 15 is activated by pressure air. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a copying type grinding apparatus for grinding a side surface of a workpiece following a side surface of a master fixed to a mounting table. More specifically, the present invention mainly relates to deburring of a workpiece in a field that is not mass-produced. The present invention relates to a copying type grinding apparatus that can be controlled by opening and closing an air valve that supplies pressurized air by a pair of rotating cam plates.

  This type of profiling grinding machine has traditionally been performed by mechanical control, which is a complex combination of many parts and causes frequent troubles. Recently, computer-controlled NC machine tools have become mainstream. It is necessary to set the software that is suitable for each workpiece to be ground and the setting using that software. For deburring of mass-produced workpieces, to grind using expensive NC machine tools Currently, the workpiece to be processed is expensive, and depending on the workpiece, the worker performs deburring by hand. However, due to manual work, variations occur and the finish is uniform. The failure rate was high.

For example, as the previously disclosed profiling grinding device, the movable table is supported so as to be slidable back and forth horizontally with respect to the fixed machine frame, and the outer periphery of the gauge that rotates in the fixed machine frame is provided on the movable table. By copying by a copying means, this copying movement is transmitted to a rotating work and a rotating grindstone provided on the fixed machine frame and the movable base (see Patent Document 1), and a transfer line for the small member 12 A pair of pinch rollers 52 and 30 capable of sandwiching the member 12 are disposed on the upstream and downstream sides of the processed portion provided on the substrate. A second saddle 65 having a spindle head 68 is disposed on a first saddle 62 that is movable in a direction intersecting the transfer line so as to be movable up and down. A horizontal scanning roller that can contact the side surface of the small member 12 is disposed on the spindle head 68, and a vertical scanning roller 75 that can contact the upper surface of the small member 12 is disposed on the second saddle 65. Then, in a state where both the copying rollers 75 are in contact with the accessory member 12, the edge of the member 12 is chamfered by the machining tool 22 disposed on the spindle head 68 (see Patent Document 2), A plurality of rollers 4 arranged radially at a predetermined interval are provided, a support means for supporting the gear G to be processed on these rollers, and a gear G supported on the support means can be moved in the radial direction. And a pinion 14 rotatably arranged, and a driving means for rotating the pinion 14 by meshing with the gear G, and a rotatable contact member, and the contact member serving as a tooth surface of the gear G A scanning means for contacting with a predetermined force, and an end face of the gear G. The cutter 60 supports the cutter 60 so that the rotation center is located concentrically with the rotation center of the contact member, and the cutter 60 axes Which provided a cutting means movable (see Patent Document 3) it has been disclosed in direction.
Japanese Patent Laid-Open No. 5-154754 Japanese Patent Laid-Open No. 5-162053 JP 2001-205521 A

  However, each of the above-mentioned patent documents is a grinding device that is copied by mechanical connection, and has a complicated structure. A structure in which the workpiece to be ground is provided in the horizontal direction, requires space, and does not disclose a structure in which each action mechanism is operated by the rotation of the main motor with an inverter.

  In view of the above problems, the present invention solves these problems as a result of diligent research. A main motor with an inverter, a first rotating shaft that is mechanically connected to the main motor with an inverter and is installed horizontally, A plurality of cam mechanisms composed of a pair of cam plates stacked with a first bevel gear fixed to one rotation shaft, a second bevel gear that meshes with the first bevel gear and transmits rotation; A second rotating shaft with a bevel gear fixed, a mounting table fixed to the second rotating shaft, a master fixed to the mounting table, a work detachably fixed to the master, and a scanning contact to contact the master On the outer periphery of a pair of cam plates of a plurality of cam mechanisms, a grinding device main body that protrudes a scanning contact portion and moves in the front-rear direction, a grinding rotary tool that grinds a workpiece provided on the grinding device main body Control row sliding along And a pivotable control lever pivotally mounted with a control roller, an air valve that is opened and closed by the pivot of the control lever, and an air tube that sends pressurized air through the air valve, The air tube is connected to each action mechanism of the grinding apparatus, and the pair of cam plates forms a large-diameter outer peripheral portion and a small-diameter outer peripheral portion via a step portion, and the pair of cam plates are displaced and fixed. Thus, the air valve is opened or closed by each step portion while the first rotating shaft makes one rotation, and the action mechanism is operated by the pressurized air.

  As described above, the copying type grinding apparatus of the present invention has the first rotating shaft and the second rotating shaft connected by the first bevel gear and the second bevel gear, and the second rotating shaft is connected to the master. A plurality of cam mechanisms are provided on the first rotating shaft, and pressurized air is supplied by rotating a pair of cam plates of each cam mechanism to act on various action mechanisms. Therefore, it has a simple structure and can be manufactured inexpensively and compactly. Furthermore, a large amount of deburring of the outer periphery of irregularly shaped workpieces can be achieved by manufacturing and grinding a master according to the shape of the workpiece. In comparison with NC machine tools, it is inexpensive and can be installed in multiple units, is easy to maintain, has low cost and is uniform in shape, and is groundbreaking and practical. It is a highly effective invention.

  Hereinafter, the embodiment of the copying type grinding apparatus of the present invention will be specifically described with reference to the drawings. FIG. 1 is a schematic front view for explaining the outline of the embodiment of the copying type grinding apparatus of the present invention. FIG. 2 is a schematic side view for explaining the outline of the embodiment of the copying type grinding apparatus of the present invention, and FIG. 3 is an explanatory view of the cam mechanism of the embodiment of the copying type grinding apparatus of the present invention.

  The present invention relates to a copying type grinding apparatus for grinding a side surface of a workpiece W following a master M fixed to a mounting table 7, and more specifically, a variability of a workpiece W in a field that is not mass-produced. A pair of rotating cam plates 4A. 4B relates to a copying type grinding apparatus capable of controlling by opening and closing an air valve 13 for supplying pressurized air by 4B, and is mechanically connected to the main motor 1 with an inverter as a drive source and the main motor 1 with an inverter. A pair of cam plates 4 </ b> A and 4 </ b> A that are respectively stacked with a first rotary shaft 2 that is installed horizontally and a first bevel gear 3 that is fixed to the first rotary shaft 2. A plurality of cam mechanisms 4 composed of 4B, a second bevel gear 5 that meshes with the first bevel gear 3 and transmits rotation in a right angle direction, and a second rotating shaft 5 that fixes the second bevel gear 5; A mounting table 7 fixed to the upper end of the second rotating shaft 5, a master M fixed to the upper surface of the mounting table 7, a work W fixed to the upper surface of the master M in a detachable manner, A copying contact portion 8 that is brought into contact with the side surface of the master M, a grinding device body 9 that protrudes forward and moves in the front-rear direction, and a side surface of the workpiece W provided on the grinding device body 9 A grinding rotary tool 10 for grinding, and a pair of cam plates 4A. 4B, the control roller 11 sliding along the outer periphery, the control roller 11 pivotally mounted on the tip of the control roller 11 and pivotable, and the control lever 12 pivoted. An air valve 13 and an air tube 14 for sending pressurized air through the air valve 13, and the air tube 14 is connected to each action mechanism 15 of the grinding apparatus and the pair of cams Plate 4A. 4B is a large-diameter outer peripheral portion 4Aa. 4Ba and step 4Ab. 4Bb, a small-diameter outer peripheral portion 4Ac. 4Bc and a pair of cam plates 4A. By shifting and fixing 4B, each step 4Ab. The air valve 13 is opened or closed by 4Bb, and the respective action mechanisms 15 are acted on by pressurized air.

  That is, the copying type grinding apparatus of the present invention is suitable for deburring the side surface of the workpiece W formed of light metal, synthetic resin, etc. produced in large quantities, and can easily set and change the action mechanism 15. The main motor with inverter 1 is electrically connected to a power source and serves as a drive source for rotating a first rotating shaft 2 and a second rotating shaft 5 described later.

  The first rotating shaft 2 is mechanically connected to the rotating shaft of the inverter-equipped main motor 1 via a gear or the like and is laterally arranged. The first bevel gear 3 and a plurality of cam mechanisms 4 described later are provided. Is fixed.

  Next, the first bevel gear 3 is fixed to the first rotating shaft 2 and is a well-known shade-shaped gear that transmits rotation in a right angle direction with a second bevel gear 5 described later. A plurality of cam mechanisms 4 are provided, and a pair of cam plates 4A. 4B, which rotate by the rotation of the first rotating shaft 2 respectively.

  Next, the second bevel gear 5 is engaged with the first bevel gear 3 to transmit the rotation in the perpendicular direction, that is, in the upward direction, and is fixed to the second rotation shaft 5 described later. By changing the gear ratio between the first bevel gear 3 and the second bevel gear 5, the rotation speed of the first rotation shaft 2, the number of rotations and the rotation speed of the second rotation shaft 5 can be set.

  Further, the second rotating shaft 5 has a second bevel gear 5 fixed to the lower end and a mounting table 7 to be described later fixed to the upper end, and is fixed to the first rotating shaft 2. By the first bevel gear 3 and the second bevel gear 5, for example, the second rotation shaft 5 rotates 2 to 5 while the first rotation shaft 2 makes one rotation.

  Further, the mounting table 7 is fixed to the upper end of the second rotating shaft 5 and rotates together with the second rotating shaft 5. The master M described later is fixed to the upper surface and rotated together.

  Further, the master M is fixed to the upper surface of the mounting table 7, and a workpiece W (described later) is fixed to the upper surface, and the burrs on the side surfaces of the workpiece W are aligned along the side surface shape of the master M by a copying contact portion 8 (described later). Is formed into a reference shape for copying with the rotary tool 10 for grinding.

  Next, the workpiece W is aligned and superposed on the upper surface of the master M and is detachably fixed, and is pressed and fixed by a workpiece holder Wa suspended above the workpiece W. The burr protruding on the side surface of the workpiece W along the shape of the side surface of the master M is ground by a grinding rotary tool 10 described later.

  Next, the copying contact portion 8 makes a small cam floor or the like contact the side surface of the master M, and moves the grinding apparatus body 9 provided with the grinding rotary tool 10 described later in the front-rear direction along the shape of the side surface of the master M. It is.

  Further, the grinding device main body 9 is movable in the front-rear direction and the up-down direction by a front-rear rail member 9a, a front-rear rail receiving member 9b, a vertical rail member 9c, a vertical rail-receiving member 9d, etc. The grinding device main body 9 is provided in the forward direction during grinding by the action mechanism 15 and the elasticity of the coil spring 9e described later and the air damper 9f for longitudinal movement. A grinding motor 9g for rotating the grinding rotary tool 10, a vertically movable air damper 9h for vertically moving the grinding device body 9 and a vertically movable air cylinder 9i are provided. Thus, a rotational force is applied to the grinding rotary tool 10 by mechanical connection.

  Furthermore, the grinding rotary tool 10 is a roll-shaped milling cutter, a grinding wheel, or various conical wire brushes disposed in front of the grinding apparatus body 9 in the vertical direction. Etc. are ground.

  The control roller 11 includes a pair of cam plates 4A. It slides along the outer periphery of 4B, and operates the control lever 12 described later.

  Next, the control lever 12 is rotatably attached to the tip of the control roller 11, and is provided so as to be pivotable by the movement of the control roller 11. The tip of the control lever 12 is supported by an elastic member such as a coil spring. The control roller 11 is provided with elasticity so that it constantly contacts the cam mechanism 4.

  Further, the air valve 13 is pressed downward by the pivot of the control lever 12 to be in an open state, and is returned to the upper side to be in a closed state, or vice versa. 14 is interposed.

  Further, the air tube 14 has a base end connected to a compressor or the like of an air source, and an air pressure is adjusted by an air control unit (not shown). A tip of the air tube 14 is connected to a number of action mechanisms 15 to be described later. 13 is arranged so that pressurized air is supplied to each action mechanism 15 at the tip by opening and closing each air valve 13.

  And many action mechanisms 15 are action mechanisms 15 in various places of a grinding machine, for example, air blow for chips for blowing away the chips during grinding, for blowing off chips adhering to the work W For air blow for work blow, moving the air blow head back and forth to move the head in and out, moving the stopper to limit the movement of the movable part, opening and closing the casing door to replace the work W, and for projecting the work to determine the position of the work W The main shaft is moved up and down, etc., connected by an air tube 14, the blow part uses an air injection nozzle at the tip, and the moving part is provided with an air cylinder.

  Further, a pair of cam plates 4A. 4B, as shown in FIG. 4Ba and a small-diameter outer peripheral portion 4Ac. 4Bc and the stepped portion 4Ab. 4Bb, and a large-diameter outer peripheral portion 4Aa. 4Ba and a small-diameter outer peripheral portion 4Ac. The ratio with 4Bc can be set arbitrarily.

  Further, the pair of cam plates 4A. 4B is a step 4Ab. 4Bb by shifting the positions of 4Bb and fixing them together. The control roller 11 mounted on the tip of the control lever 12 sliding on 4Ba only rotates, and the large-diameter outer peripheral portion 4Aa. 4Ba to small-diameter outer peripheral portion 4Ac. Step part 4Ab. 4Bb is moved in the inner circumferential direction by the elasticity of the elastic member, and the control lever 12 is pivoted by this movement to open or close the air valve 13. When the air valve 13 is opened, the pressurized air Flows into the air tube 14 and is supplied to each action mechanism 15 at the tip where the air tube 14 is disposed. For example, in the air blow for chips, the cut air discharged by grinding is injected by pressurized air. The powder is blown away.

  In other words, each pair of cam plates 4A. 4B also rotates once, and the cam plate 4A. 4B step 4Ab. 4Bb opens or closes the air valve 13 to actuate each action mechanism 15, and fixes the master M to the mounting table 7 via the first bevel gear 3 and the second bevel gear 5, and stacks and attaches to the master M. The workpiece W also rotates and the side burrs are ground by the grinding rotary tool 10, and basically a pair of cam plates 4A. During the rotation of 4B, the workpiece W is rotated several times and grinding is performed.

  Then, it is necessary for carrying out the grinding of each action mechanism 15, and each pair of cam plates 4A. 4B also rotates once, and the step 4Ab. The control lever 12 pivots by the movement of the control roller 11 that slides on 4Bb, so that the air valve 13 is opened or closed and the respective action mechanisms 15 are operated.

  In the present invention, the first rotating shaft and the second rotating shaft are connected by the first bevel gear and the second bevel gear, the master and the work are overlapped and fixed on the second rotating shaft, Since a plurality of cam mechanisms are provided on one rotating shaft 2 and a pair of cam plates of each cam mechanism rotate to supply pressurized air to operate various operating mechanisms, the structure is simple and inexpensive. The present invention also provides a copying type grinding apparatus that is manufactured in a compact manner.

  FIG. 1 is a schematic front view for explaining the outline of the embodiment of the copying type grinding apparatus of the present invention.   FIG. 2 is a schematic side view for explaining the outline of the embodiment of the copying type grinding apparatus of the present invention.   FIG. 3 is an explanatory view of the cam mechanism of the embodiment of the copying type grinding apparatus of the present invention.

Explanation of symbols

W Work Wa Work holder M Master 1 Main motor with inverter 2 First rotating shaft 3 First bevel gear 4 Cam mechanism 4A Cam plate 4Aa Large diameter outer peripheral portion 4Ab Stepped portion 4Ac Small diameter outer peripheral portion 4B Cam plate 4Ba Large diameter outer peripheral portion 4Bb Stepped portion 4Bc Small-diameter outer peripheral portion 5 Second bevel gear 6 Second rotating shaft 7 Mounting table 8 Copying contact portion 9 Grinding device main body 9a Longitudinal rail member 9b Longitudinal rail receiving member 9c Vertical rail member 9d Vertical rail receiving Member 9e Coil spring 9f Front and rear movable air damper 9g Grinding motor 9h Vertical movable air damper 9i Vertical movable air cylinder 10 Grinding rotary tool 11 Control roller 12 Control lever 13 Air valve 14 Air tube 15 Action mechanism

Claims (1)

  A main motor with an inverter as a drive source, a first rotary shaft that is mechanically connected to the main motor with an inverter and installed horizontally, and a first bevel gear fixed to the first rotary shaft, respectively. A plurality of cam mechanisms composed of a pair of cam plates, a second bevel gear that meshes with the first bevel gear and transmits rotation in a right angle direction, and a second rotation shaft that fixes the second bevel gear; A mounting table fixed to the upper end of the second rotation shaft, a master fixed to the upper surface of the mounting table, a work detachably fixed to the upper surface of the master, and a side surface of the master A copying contact portion, a grinding device main body that protrudes forward and moves in the front-rear direction, a roll-shaped grinding rotary tool that grinds the side surface of the workpiece provided in the grinding device main body, A pair of cams of the plurality of cam mechanisms A control roller that slides along the outer periphery of the control roller, a pivotable control lever that is rotatably attached to the tip of the control roller, an air valve that is opened and closed by the pivot of the control lever, An air tube for supplying pressurized air via an air valve, and the air tube is connected to each action mechanism of the grinding device, and the pair of cam plates are respectively a large-diameter outer peripheral portion and a step portion. Forming a small-diameter outer peripheral portion via the first and second cam plates, and the first valve is opened and closed by each step portion while the first rotation shaft makes one rotation. A copying type grinding apparatus characterized in that pressure is applied by pressurized air.

Images