JPS59102563A - Double-end surface grinding machine - Google Patents

Abstract

PURPOSE:To improve workability while to simplify loading of workpiece and to machinize feeding of workpiece, by indexing a workpiece simultaneously from two facing positions between upper and lower grindstones. CONSTITUTION:A workpiece is held in a holding hole 47 through a workpiece holding plate 46 and a rotary table 38 is rotated by half. Then the workpiece will slide on a guideboard 48 to move to grinding station. Thereafter an elevating member 56 is lowered against an arm 53 to stop an oscillation motor 57 and an eccentric cam 59 to a holder 45 of a moving member 44. Then the arm 3 is rolled with predetermined angle to reciprocate the moving member 44 through said cam 59 along a guide rod to both grindstone 25, 26 side together with a plate 46 and while applying oscillation, it is grinded by both rotary grindstones 25, 26. Since the workpiece is indexed from two positions simultaneously, workability is improved.

Description

[Detailed description of the invention] a. INDUSTRIAL APPLICATION FIELD This invention relates to a grinding device, and particularly to a double-head surface grinding device that indexes a workpiece between rotating grindstones and simultaneously grinds both end faces of the workpiece using both grindstones.

BACKGROUND ART - PRIOR TECHNOLOGY In general, as an example of the above-mentioned double-headed surface grinding device, one having a structure shown in FIGS. 1 to 3 is known. That is, this double-headed surface grinding device is an electric VJ machine 111 (21)
7 mechanisms (up and down rotation axis that rotates through 31T41 + 5
1 (61) is supported on the main body frame (7), and both rotating shafts 15
++6+ corresponding IiiiIII1 report part has a whetstone head 1iUj
A grindstone (101Q) is installed on both grindstone stands (8) and (9) so that their grinding surfaces correspond to each other, and a grindstone (10J
(I1) rotation axis (carrier play that rotates and oscillates in a plane perpendicular to brte+) (
12), and upper and lower opposing arsenic stones (IOj(I
Both end surfaces of the workpiece indexed by the carrier plate 02 between υ are ground simultaneously with both grindstones (lQj (IIJ). By the way, in this device, the carrier plate θ There were drawbacks such as the fact that it was difficult to feed the workpiece at the loading station because the odor was constantly oscillating.

C. Purpose of the Invention This invention provides a method for grinding wheels that face each other. This system improves work efficiency by indexing the workpiece at two locations, and also facilitates the feeding of the workpiece at the loading station.

two. Composition of the invention This is F! I4Fi is a double-head surface grinding device in which upper and lower grinding wheels are arranged with their grinding surfaces facing each other, a workpiece is indexed between the two grinding wheels, and both end surfaces of the workpiece are simultaneously ground by both grinding wheels. , a rotary table that rotates intermittently by half a rotation at a predetermined time, two movable bodies provided at opposing positions of the rotary table so as to be slidable in a direction orthogonal to the rotation axes of both grinding wheels, and the number of movable bodies. a workpiece holding plate that holds the workpiece at its tip, an arm that swings back and forth within a certain angle range, and a piston rond whose tip is fixed to the arm and moves up and down toward the wooden rest side. an oscillation motor whose main body side is fixed to the elevating member and whose rotating shaft is slidably passed through the arm; and an eccentric cam fixed to the lowermost end of the rotating shaft of the oscillation motor. and a carrier mechanism comprising a holder that fits and locks the eccentric cam fixed to the movable body, and a clamp member that fixes the movable body at a predetermined position on the rotary table, is provided on both sides of both grindstones. It is something.

Ho. EXAMPLES The details of the present invention will be described below with reference to the examples shown in FIGS. In the drawing, (21) is a free frame, in which the grinding wheels (A) (Incorporated) attached to each grindstone stand H' (2, 'l) are placed in the space formed in the center so that their grinding surfaces are mutually They are arranged facing each other. (2η (c) means that each grindstone head +231
(A rotary shaft to which the grindstone (Incorporated) is attached via 24, supported along the main body frame, and connected to the electric motor 00 through each transmission mechanism (c) 1. When the electric motor is driven, each transmission la structure 9)
Each rotating shaft body η rotates through one
Rotate each. 01 (Incorporated) indexes the workpiece between the two grinding wheels (C) (C), and indexes the workpiece between the two grinding wheels (B) Qe at right angles to the axis of rotation η4 of the two grinding wheels (Corporation). It is a carrier mechanism that provides oscillation motion in the direction of grinding, and is placed opposite to each other on both sides of the main body frame (two wheels) with the two wheels in between.

In the above configuration, the carrier mechanism 11 simultaneously indexes the workpieces at two opposing locations between the upper and lower rotating whetstones, and the carrier mechanism 11 indexes both end surfaces of each workpiece. While oscillating in a direction perpendicular to the rotation axis of both grinding wheels, grinding is performed simultaneously with both grinding wheels.

Next, details of the carrier mechanism will be explained with reference to FIGS. 2 to Z. In addition, both carrier mechanisms
331N may have the same structure, but only the carrier mechanism will be explained and the explanation of the carrier mechanism will be omitted.

In Figures 2 to 2, ``H'' is a cylindrical body fixed to a base formed with the main body frame H, and 0η is a carrier shaft rotatably supported inside the cylindrical body. The rotary tag (to) is integrally fixed to the upper end of the cylinder, and the index moke 0 is fixed to the lower end of the cylinder body.
Connect the rotary shaft i40) of 9) with a sock (b), and set the carrier l [lI
(The rotary table (c) is configured to rotate intermittently by /J?00 via the rotary table. Two movable bodies (d) are slidably provided on both sides of the central support member using guide rods supported parallel to each other.

Eken is a four-shaped holder, and l46l is a holding hole in which a workpiece is inserted and held at its tip. The movable body (44l) is housed on the upper surface of Ikkyu. ←8l is a ring-shaped workpiece guide plate arranged on the outer periphery of the rotary table, and the upper guide surface is used for grinding the lower grindstone. It is fixed to the base (goods) via four pillars so that it is at the same height as the surface.

The cabinet is a stationary member fixed to Ikkyu on the main body with 7 frames, 6l.
} is a swing motor designed to reciprocate at a constant rotation angle, and is integrally attached to a stationary member, and its rotating shaft ? ? ? An arm Ω is fixed to the One is an elevating sleeve which is integrally formed with the arm (2) and is supported by a cylindrical light IK so that it can slide freely in the vertical direction, and an elevating member (goods) is attached to the upper end of the sleeve. The name is an oscillation moke fixed to the upper surface of the elevating capital TTF6 (9), and an eccentric cam device is attached to the lowermost end of the oscillation moke, which passes through the shaft of the elevating sleeve. The piston rond g passes through the elevating member (a) and attaches the lowermost end of the arm tightly, and when the piston rond opening is extended, The elevating member (a) 6) moves up and down with respect to the arm ridge, which causes the shiosillation mork kasumi to rise and fall, thereby lifting and lowering the eccentric cam 1591. The clamp member υ [stock] is the clamp member t6Zt provided on the side of the movable body (d) and (b) corresponding to the kukumpu member Soso.
621 (!: It is a projection that fits and locks.

Next, we will explain the operation of the carrier mechanism (bleaching) configured as above. First, the workpiece located at the loading station on the opposite side to the double grinder E@6) (26+) on the rotary table (38) will be explained. When the workpiece is inserted and held in the holding hole η of the holding gray }j461, the rotary table (c) is rotated by half a rotation via the carrier shaft (40) by the index moke (39), and the rotating table 08} is As the workpiece holding plate}1461 rotates from the rowing station to the grinding station, the workpiece inserted and held in the holding hole ←η at the rowing station is moved to the workpiece guide plate. VJ moves to the grinding station while sliding on the surface.When this is finished, the piston rod g311 of the next busy cam lifting/lowering screen is retracted and the lifting member (66) is lowered relative to the arm 5'JJ. The eccentric cam I5!ll is moved down with the oscillation motor along with η to move the moving body!
Fit and lock. When the eccentric cam 4 is fitted and locked to the holder, the arm mark is swung at a predetermined rotation angle around the rotation axis sister by the swing moke 61, and thereby the eccentric cam 4 also rotates around the rotation axis I2. Rotate around the eccentric cam and move the movable body (4) to the (self) side along the guide wheel A2 ← through the holder 4 which is fitted and locked to the eccentric cam. Then, the workpiece holding plate !4Q attached to the moving hole also moves in the same direction, and the workpiece held in the holding hole (4η) is held by the rotating upper and lower grinding wheels 0 (index between the holes). be done.

At the same time, when the oscillation motor is driven to rotate the eccentric cam 6, the movable body (d) is moved through the holder l451 to the guide rod (4f!J) within the range of eccentricity of the eccentric cam 4.
02 in a direction perpendicular to the rotating axis (c) of both whetstones, thereby making the movable body (d)
The workpiece holding plate attached to the holding hole also repeats reciprocating motion to give oscillation motion to the workpiece held in the holding hole ←η. In this way, while applying oscillation motion to the workpiece, both end surfaces of the workpiece are touched by both grindstones (25).
Grinding is performed at the same time in (26). When the grinding of both end faces of the workpiece is completed, the drive of the oscillation moke (support) is stopped to stop the rotation of the eccentric cam I59l, and at the same time, the swing motor I''ill rotates the arm ■ around the rotation axis country. The holder swings at a predetermined rotation angle in the opposite direction to the previous one, and as a result, the eccentric cam (support) also rotates in the opposite direction around the rotational axis to fit and lock onto the eccentric cam Q. The movable body (d) is moved in the opposite direction to the previous direction along the guide parleys (6) (6) via ha.When the movable body circle moves along the guide parley @2 (6), The protrusion 1 is fitted into the clamp member and clamped into a predetermined position on the rotary table (381). When this is completed, the cam lifts and lowers the piston rod of the cam elevating member (5!1). rises against the arm position, thereby causing the eccentric cam to rise together with the oscillation motor (571) and release the engagement with the holder. When the eccentric cam (59) rises, the index motor (39) The rotating table (3 field) is rotated half a rotation through the carrier axis t4CO, and the rotating tape /I/(3
8) As the workpiece holding plate rotates, it is moved from the grinding station to the sloping station to prepare for the next grinding process. The workpiece inserted and held in the holding hole η falls under its own weight through the guide plate (a four-stage unloading station with an i-shaped notch) and is discharged to a predetermined position. Although it talks about passing the workpiece holding plate,
It goes without saying that the same operation is performed for the other workpiece holding plate decoy.

fart. Effects of the Invention As explained above, according to the present invention, the workpiece is indexed at the same time at two opposing locations between the upper and lower grinding wheels, which improves work efficiency, and also allows the workpiece to be rotated intermittently in half-turn increments. At opposite positions of the rotary table, a workpiece holding brake J'lInlIJ+1▲υL+uuu\uuuu\groove hole is provided so as to be slidable in a direction orthogonal to the rotation axis of the grindstone.
Since the workpiece holding plate is clamped to the rotary table at the time of machining and to the rotary table when not machining, loading of the workpiece is easy and the workpiece is not fed by the machine. It is possible.

[Brief explanation of the drawing]

Figures 1 to 3 are drawings showing a conventional double-head surface grinding device, in which Figure 1 is a front view, Figure 2 is a side view, and Figure 3 is a plan view. Figures G to G are drawings showing the double-headed surface grinding device of the present invention, in which Figure Z is a front view, Figure J is a side view, and Figure G is a plan view. Figures 2 and 2 are drawings showing the carrier mechanism, Figures 4 and 12 are longitudinal front views of some of the main parts, and
The figure is a plan view of the main part, and FIG. 2 is a side view of the main part. (33l-●● carrier mechanism, trunk η●● carrier axis, (
C) ●● rotary table, one ●● index moke, circle (d) ●● moving body, 45l size ● - Honoreda, @61! <
・● Workpiece holding plate, ←η (4 forces ●● holding hole,
Workpiece guide with glance ●, S1) II 1l swing motor, ■
●● Arm, (5 (l9●● lifting member, 6η● fist oscillation motor, Kasumi ●● eccentric cam, Ta●● cam lifting cylinder, Soki ●● clamp member. -371- =372- -3731

Claims (1)

[Claims] 11. In a double-head surface grinding device in which upper and lower grindstones are arranged with their grinding surfaces facing each other, a workpiece is indexed between the two grindstones, and the viJ end face of the workpiece is simultaneously ground by both grindstones. , a rotary table that rotates intermittently at predetermined times, two movable bodies provided at opposite positions of the rotary table so as to be slidable in a direction perpendicular to the rotation axes of both grinding wheels, and each of which is attached to the two movable bodies. A workpiece holding plate that holds a workpiece at the tip thereof, an arm that swings back and forth within a certain angle range, and a lifting member fixed to the main body by fixing the tip of a piston rond to the arm. a lifting cylinder;
an oscillation control motor whose zero rest side is fixed to the elevating member and whose rotating shaft slidably passes through the arm; an eccentric cam whose lowermost end K of the rotating shaft of the oscillation motor is fixed; Double-head surface grinding characterized in that a carrier mechanism consisting of a holder that fits and locks the fixed eccentric cam and a clamp member that fixes the movable body at a predetermined position on the rotary table is provided on both sides of both grindstones. Device.