JP2016083721A - Cylindrical grinder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cylindrical grinder having a sizing device and a swing stopper installed without using a slide base having a grinding wheel base mounted thereon as a foundation.SOLUTION: The cylindrical grinder includes a table 1 for supporting a workpiece 6 to be rotatable around a rotation axis R, which is installed in a head 4 to be fixed in position in a rotation axis extending direction, and a grinding wheel base 3 having a grinding wheel 31 for grinding the workpiece 6 and installed in a slide base 2 to be automatically movable in a direction orthogonal to the rotation axis, the slide base 2 being installed in head 4 to be automatically movable in the rotation axis extending direction, and is characterized in that a linkage base 5 having a sizing device 51 of the workpiece 6 mounted thereon and passively movable in the rotation axis extending direction is provided in the table 1, and the slide base 2 and the linkage base 5 are linked together to be disconnected by a linkage mechanism 7.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a cylindrical grinder provided with a sizing device or a bracing device.

  In order to confirm that the grinding part of the workpiece ground by the grinding wheel is ground according to the set value, the cylindrical grinding machine has the size of the grinding part (the thickness in the extending direction of the rotation axis and the direction orthogonal to the rotation axis). A sizing device is provided for measuring the outer diameter, inner diameter or thickness). Usually, a sizing device arranges a measuring element in the facing relationship of the grinding wheel in order to measure a grinding portion of a workpiece ground by a grinding wheel provided on a grinding wheel base. The sizing device attached to the cylindrical grinding machine is configured by providing a measuring element at a support arm end extending from a slide base on which a grindstone table is placed, for example, in order to maintain a facing positional relationship between the grinding portion and the measuring element. (Patent Document 1).

  The sizing device disclosed in Patent Document 1 is a support that is fixed to a slide base on which a grindstone is placed and extends in a direction perpendicular to the rotation axis (X direction) to a position opposite to the grinding wheel with respect to the rotation axis R of the main shaft. It is configured to be attached to the tip of the arm (Patent Document 1, [Claim 1] and others). The sizing device is attached to the support arm via an operating device that moves back and forth between the measurement position and the standby position (Patent Document 1, [Claim 2] and others). The support arm has a gate-type structure (Patent Document 1, [Claim 3], [Claim 4] and others) straddling the upper side of the workpiece, or a structure extending between the bed and the workpiece (Patent Document 1, [Claim 5] Others).

JP 2007-152534 A

  The cylindrical grinding device disclosed in Patent Literature 1 extends a support arm with reference to a slide base on which a grinding wheel base is placed, and arranges a measuring element of a sizing device in a positional relationship between the grinding wheel and the grinding wheel. From now on, the support arm is a workpiece and a table that rotatably supports the workpiece (the workpiece is supported by being sandwiched between a pair of centers each of which has two support bases movable on the table) In order to avoid interference with the workpiece, it becomes a curved long member extending across the workpiece and the table. This leads to an increase in the size and weight of the support arm, which may adversely affect the feed accuracy and positioning accuracy of the grindstone table placed on the slide base that is the basis of the support arm.

  In addition, the sizing device supported by the support arm serving as the long member has a possibility that the sizing device may vibrate due to vibration from the surroundings if the support arm has insufficient rigidity. There arises a problem that accurate measurement cannot be performed. Furthermore, when it is desired to measure the size of the grinding part at a position shifted from the grinding wheel in the direction in which the rotation axis extends, the cylindrical grinding device disclosed in Patent Document 1 is a slide base on which a grinding wheel is placed after each grinding operation is interrupted. Each sizing device had to be moved, which was inconvenient.

  As described above, the cylindrical grinding apparatus disclosed in Patent Document 1 causes an increase in the size and weight of the entire apparatus, affects the feed accuracy and positioning accuracy of the grinding wheel platform, and consequently reduces the grinding accuracy of the workpiece. There is a problem that the measurement accuracy of the sizing device is lowered due to insufficient rigidity of the support arm, and further, it is difficult to measure the grinding part at a position shifted from the grinding wheel. Problems caused by such support arms also existed in the anti-vibration device that causes the contact to face the grinding wheel of the grinding wheel base (upsizing of the entire device, increase in weight, reduction of anti-vibration effect, etc.). Therefore, in order to omit the support arm, the present inventors have studied in order to develop a cylindrical grinding device provided with a sizing device or a bracing device without using a slide base on which a grindstone is placed.

  As a result of the study, a grindstone having a grinding wheel that grinds the workpiece by providing a bed with a table that rotatably supports the work around the rotation axis R, fixed in the extending direction of the rotation axis. In a cylindrical grinding apparatus in which a table is provided on a slide base so as to be automatically movable in a direction orthogonal to the rotation axis, and the slide base is provided on a bed so as to be automatically movable in the direction of extension of the rotation axis. A sizing device or a bracing device is placed on the table, and an interlocking base that can be moved in the direction of rotation of the rotational axis is provided on the table, and the slide base and the interlocking base can be freely disconnected by a connecting mechanism. It is a cylindrical grinding device (whetstone stand moving type).

  The connection release mechanism includes a state in which the movement of the slide base is transmitted to the interlocking base and the two are interlocked (connected state), and a state in which the movement of the slide base is not transmitted to the interlocking base and the interlocking base does not move (release state). Switch. From this point, if the connecting mechanism connects the slide base and the interlocking base, the grinding wheel base moving type cylindrical grinding apparatus moves the interlocking base connected to the slide base in the extending direction of the rotation axis, and the connecting mechanism is connected to the slide base. If the connection with the interlocking base is released, the relative position of the interlocking base is relatively fixed in the rotation axis extending direction even if the slide base moves in the rotation axis extending direction.

  The grinding wheel support type cylindrical grinding machine is connected with the slide base and the interlocking base, and the grinding wheel base is moved in the direction of the rotation axis by moving the slide base. The positional relationship between the grinding wheel base and the workpiece is shifted in the rotation axis extending direction without changing the positional relationship with the measuring device of the apparatus or the contact of the shaking device in the rotation axis extending direction, and the connecting mechanism is a slide base. In a state where the connection with the interlocking base is released, the grinding wheel base is moved in the extending direction of the rotation axis by moving the slide base, and the positional relationship between the workpiece and the measuring element of the sizing device or the contact of the steadying device The positional relationship between the grinding wheel of the grinding wheel base and the measuring element of the sizing device or the contact of the steadying device is shifted in the extending direction of the rotating axis without changing the rotation axis in the extending direction of the rotating axis.

  The fact that the grindstone is “movable automatically in the direction orthogonal to the rotation axis” means that the grindstone has moving means (for example, a ball screw mechanism) and moves by itself in the direction orthogonal to the rotation axis. Further, the fact that the slide base is “movable in the direction of extension of the rotation axis” means that the slide base has moving means (for example, a ball screw mechanism or the like) and moves by itself in the direction of extension of the rotation axis. Since the grindstone platform is mounted on the slide base, it can be moved in the direction of extension of the rotation axis by the movement of the slide base. And, the interlocking platform is “movable in the direction of rotation of the rotation axis by moving freely” means that the interlocking base has no moving means and the slide base and the interlocking base are connected to each other. ) Means that it can only move.

  When the slide base and the interlocking base are connected by the connecting mechanism, the grinding wheel base so that the grinding wheel of the grinding wheel base and the measuring element of the sizing device or the contact of the anti-resting device placed on the interlocking base are opposed to each other. If the positional relationship with the interlocking base is set, the connection mechanism releases the connection between the slide base and the interlocking base, and if the grinding wheel base is moved by the movement of the slide base, the measuring wheel of the grinding wheel and the sizing device or The positional relationship is offset with respect to the contact of the anti-vibration device (the positional relationship is shifted in the direction in which the rotation axis extends. The same applies hereinafter).

  In addition, when the slide base and the interlocking base are connected by the connecting mechanism, the grinding wheel is set so that the grinding wheel of the grinding wheel base and the measuring element of the sizing device or the contact of the anti-resting device placed on the interlocking base are offset. If the connection position relationship between the base and the interlocking base is set, the connection mechanism releases the connection between the slide base and the interlocking base, and if the grinding wheel base is moved by the movement of the slide base, the grinding wheel and the sizing device The measuring element or the contact of the anti-vibration device can be made to coincide with the extending direction of the rotation axis so as to be in an opposing positional relationship.

  The coupling mechanism is a combination of a coupling convex portion that crosses in the rotation axis extending direction from one of the slide base and the interlocking base and a coupling hole provided on the other of the slide base and the interlocking base, A configuration in which the connection between the slide base and the interlocking base is released by inserting / removing the connection convex portion into / from the connection hole is preferable. The connecting hole may be penetrating or not penetrating. When the connecting convex part advances from one of the slide base and the interlocking base and is inserted into the connecting hole provided on the other of the slide base and the interlocking base, the connecting convex part is engaged with the connecting hole in the direction of the rotation axis extending, and the slide Create a connection between the base and the interlocking base.

  Specifically, the connection mechanism has a configuration in which a connection convex portion whose tip is formed in a cone shape or a frustum shape is pressed against a mortar-shaped connection hole which is a transfer structure of the cone shape or the frustum shape, or a uniform cross section. A configuration in which a connecting convex portion which is a simple rod body is fitted into a long connecting hole having a cross section equal to the cross section of the rod body can be exemplified. The advance / retreat means can be exemplified by a hydraulic, pneumatic or electric linear cylinder. It is desirable that these connecting convex portions advance and retreat in a direction orthogonal to the rotation axis extending direction that is the moving direction of the interlocking platform, that is, in the direction orthogonal to the rotation axis. Further, the connecting hole may project a lock pin that engages or is inserted into the connecting convex portion, a biasing pin that suppresses rattling of the connecting convex portion, or a detection pin that detects pressing or fitting of the connecting convex portion.

  In order to prevent inadvertent movement of the interlocking base that has been disconnected from the slide base, the interlocking base can be freely released by the bed or table and the sub-connecting mechanism. If the connecting mechanism is inactivated, the interlocking base is released from the bed or table, and if the connecting mechanism is inactive and the connection between the slide base and the interlocking base is released, the auxiliary connecting mechanism is released. May be operated to connect the interlocking base to a bed or a table. That is, the coupling mechanism and the sub coupling mechanism are operated exclusively.

  The sub-connecting mechanism only needs to be able to switch between a state where the interlocking base is fixed with the bed or table (connected state) and a state where the interlocking base can move away from the bed or table (released state). For example, a structure comprising a pressure-contact block that is advanced and retracted from one of the bed or table and the interlocking base toward the other and pressed against the other, or a chuck in which one of the bed or table and the interlocking base can be gripped and released with respect to the other And a configuration comprising a combination of a fixed shaft provided in the bed or table extending in the direction of the rotation axis and a chuck provided on the interlocking base and capable of gripping and releasing the fixed shaft.

  Switching between the operation and non-operation of the connection mechanism and the sub-connection mechanism may be performed manually by an operator, but from the viewpoint of labor reduction, switching reliability and safety, for example, the connection mechanism operates based on the connection mechanism. If the slide base and the interlocking base are connected, the sub-connecting mechanism is automatically deactivated (releasing the interlocking base), and conversely, the coupling mechanism is inoperative (releasing the connection between the slide base and the interlocking base). If so, it is better to automatically operate the sub-coupling mechanism (fix the interlocking base). The operation and non-operation of the connection mechanism uses, for example, a switch that a non-contact detection sensor provided in the connection hole detects pressure contact or insertion of the connection convex portion. In this way, the interlocking platform is always in a state in which either one of the coupling mechanism or the sub coupling mechanism is in operation, and it is preferable to eliminate the complete free state.

  The present invention can also be applied to a cylindrical grinding apparatus in which the slide base is omitted, the grindstone base is movable only in the direction orthogonal to the rotational axis, and the table is movable in the direction of extending the rotational axis. Specifically, a grinding wheel base having a grinding wheel for grinding a workpiece by providing a table for automatically supporting the workpiece around the rotation axis R so as to be automatically movable in the direction in which the rotation axis extends. Can be moved automatically only in the direction orthogonal to the rotation axis and mounted on the bed. A cylindrical grinding apparatus characterized in that the bed (including a grindstone base that is fixed to the bed and on which the grindstone base is placed. The same applies hereinafter) and the interlocking table are freely disengaged by a coupling mechanism. (Table movement type).

  In the connection release mechanism, the interlocking platform is integrated with the bed, the position of the interlocking platform is fixed against the movement of the table (connected state), and the interlocking platform is released from the bed, and the movement of the table is interlocked The state that is transmitted to the table and interlocked with each other (release state) is switched. From now on, in the table moving type cylindrical grinding apparatus, if the connecting mechanism connects the bed and the interlocking base, even if the table moves, the interlocking base is relatively fixed in the extending direction of the rotation axis, and the connecting mechanism is connected to the bed. If the connection with the interlocking base is released, the interlocking base is moved in the direction of the rotation axis extending integrally with the table.

  The table moving type cylindrical grinding machine moves the table in the direction of extending the rotation axis with the connecting mechanism connecting the bed and the interlocking base, and the grinding wheel of the grinding wheel base and the measuring element of the sizing device or the resting device The positional relationship between the grinding wheel and the workpiece of the grinding wheel table is the rotational axis without changing the positional relationship with the contact in the direction in which the rotational axis extends (the same or offset positional relationship is maintained. The same applies hereinafter). The table is moved in the extending direction of the rotation axis with the connecting mechanism releasing the connection between the bed and the interlocking base, and the workpiece and the measuring element of the sizing device or the contact of the steadying device are moved. The positional relationship between the grinding wheel of the grinding wheel base and the measuring element of the sizing device or the contact of the steadying device is shifted in the direction of extending the rotational axis without changing the positional relationship in the direction of extending the rotational axis.

  “The table is automatically movable in the direction of extension of the rotation axis” means that the table has moving means (for example, a ball screw mechanism) and moves by itself in at least the direction of extension of the rotation axis. Similarly, “the wheel head is automatically movable in the direction orthogonal to the rotation axis” means that the wheel head has a moving means and moves by itself in the direction orthogonal to the rotation axis. In addition, the interlocking table is “movable in the direction of rotation of the rotation axis by moving freely” means that the interlocking table has no moving means and the table is moved (others) when the connection between the bed and the interlocking table is released. It means that it can move only by force.

  When the bed and the interlocking base are connected by the connecting mechanism, the bed and the interlocking base are arranged so that the grinding wheel of the grinding wheel base and the measuring element of the sizing device or the contact of the anti-resting device placed on the interlocking base face each other. If the positional relationship is set, the connecting mechanism releases the connection between the bed and the interlocking base, and if the table is moved, the grinding wheel and the measuring element of the sizing device or the contact of the steadying device are offset. The positional relationship becomes.

  Further, when the bed and the interlocking base are connected by the connection mechanism, the bed and the grinding wheel of the grinding wheel base and the measuring element of the sizing device or the contact of the anti-resting device placed on the interlocking base are offset. If the positional relationship with the interlocking base is set, the connecting mechanism releases the connection between the bed and the interlocking base, and if the table is moved, the measuring wheel of the grinding wheel and the sizing device or the contact of the anti-sway device Can be made to coincide with the direction in which the rotation axis extends and be in an opposing positional relationship.

  The coupling mechanism is a combination of a coupling convex portion that crosses in the rotation axis extending direction from one of the bed and the interlocking platform and a coupling hole provided in the other of the bed and the interlocking platform, and the coupling The structure which cancels | releases the connection of a bed and an interlocking base by inserting / extracting a convex part in a connection hole is preferable. The connecting hole may be penetrating or not penetrating. When the connecting convex part moves forward from one of the bed and the interlocking base and is inserted into the connecting hole provided on the other of the bed and the interlocking base, it engages with the connecting hole in the direction of rotation axis and interlocks with the bed Create a connection with the base.

  Specifically, the connection mechanism has a configuration in which a connection convex portion whose tip is formed in a cone shape or a frustum shape is pressed against a mortar-shaped connection hole which is a transfer structure of the cone shape or the frustum shape, or a uniform cross section. A configuration in which a connecting convex portion which is a simple rod body is fitted into a long connecting hole having a cross section equal to the cross section of the rod body can be exemplified. The advance / retreat means can be exemplified by a hydraulic, pneumatic or electric linear cylinder. It is desirable that such connecting convex portions advance and retreat in a direction orthogonal to the rotation axis extending direction that is the moving direction of the table or the interlocking platform, that is, in the direction orthogonal to the rotation axis. Further, the connecting hole may project a lock pin that engages or is inserted into the connecting convex portion, a biasing pin that suppresses rattling of the connecting convex portion, or a detection pin that detects pressing or fitting of the connecting convex portion.

  In order to prevent inadvertent movement of the interlocking platform that is disconnected from the bed, the interlocking platform can be freely disconnected by the table and the sub-connecting mechanism, and the connecting mechanism operates to connect the bed and the interlocking platform. If the sub-coupling mechanism is deactivated and the interlocking table is released from the table, and the coupling mechanism is deactivated and the connection between the bed and the interlocking table is released, the sub-connecting mechanism is activated and the interlocking table is operated. Can be linked to a table. That is, the coupling mechanism and the sub coupling mechanism are operated exclusively.

  In the sub-connection mechanism, the interlocking base is integrated with the table, the movement of the table is transmitted to the interlocking base and both are interlocked (connected state), the interlocking base is released from the table, and the movement of the table is interlocked. It is only necessary to be able to switch between a state that is not transmitted to the state (released state), for example, a configuration comprising a pressure contact block that advances and retreats from one side of the table and the interlocking base toward the other and is pressed against the other, A configuration in which one of the chucks is free to grip and release relative to the other, or a combination of a fixed shaft provided in the table extending in the direction of rotation axis and a chuck provided on the interlocking base and capable of gripping and releasing the fixed shaft. The structure which consists of can be illustrated.

  Switching between the operation and non-operation of the connection mechanism and the sub-connection mechanism may be performed manually by an operator, but from the viewpoint of labor reduction, switching reliability and safety, for example, the connection mechanism operates based on the connection mechanism. (If the bed and the interlocking base are connected), the sub-connecting mechanism is automatically deactivated (releasing the interlocking base), and conversely if the connecting mechanism is inactive (disconnecting the bed and the interlocking base) It is preferable to automatically operate the sub-coupling mechanism (fix the interlocking base). The operation and non-operation of the connection mechanism uses, for example, a switch that a non-contact detection sensor provided in the connection hole detects pressure contact or insertion of the connection convex portion. As described above, the interlocking base is always in a state in which either the coupling mechanism or the sub-coupling mechanism is in operation, and it is preferable to eliminate the complete free state.

  The cylindrical grinding device of the present invention includes a sizing device or a swinging device that is movable in conjunction with a slide base or a table without requiring a support arm. As a result, problems due to the provision of the support arm (such as an increase in the size of the apparatus and an increase in weight, a decrease in measurement accuracy due to insufficient rigidity of the support arm, a reduction in the anti-stabilization effect, etc.) are solved. This not only reduces the manufacturing cost and maintenance cost of cylindrical grinding machines, but also improves the measurement accuracy of the sizing device and the anti-vibration effect of the anti-vibration device compared to the sizing device or the anti-vibration device supported by the support arm. Bring about an effect.

  Furthermore, the cylindrical grinding device of the present invention is different from the conventional cylindrical grinding device similarly provided with a sizing device or a shaking device, and the measuring device of the sizing device or the contact of the shaking device is opposed to the grinding wheel. In addition to being arranged in the relationship, the positional relationship in which the measuring element of the sizing device or the contact of the steadying device is offset with respect to the grinding wheel can be easily set. This means that a plurality of grinding parts can be measured, or the part suitable for the part determined by the workpiece can be restrained, and the work efficiency can be improved. , Even when measuring a plurality of grinding sites, the same interval or unequal intervals are different), and the effect of enabling a more suitable bracing.

  The coupling mechanism composed of the coupling convex part and the coupling hole transmits the movement of the slide base to the interlocking base (grinding wheel base moving type), or fixes the interlocking base to the bed against the movement of the table (table moving type). ), The strength is not necessary, and it is sufficient if it can be engaged with the moving direction of the slide base or table (direction of extending the rotation axis), and it can be configured simply, small and lightweight. This contributes to suppressing the increase in size and weight of the cylindrical grinding device. In addition, the simple structure that inserts and removes the connecting convex part in the connecting hole is less likely to cause failure and damage, and has a long MTBF (Mean Time Between Failures) and a short MTTR (Mean Repair Time), which is stable over a long period of time. There are also advantages to use.

  The sub-connection mechanism that operates exclusively with the connection mechanism prevents the displacement of the interlocking base released from the slide base and bed, and ensures reconnection between the slide base and bed and the interlocking base by the connection mechanism, This has the effect of preventing the interlocking platform from inadvertently moving and interfering with each part. A secondary coupling mechanism comprising a fixed shaft provided on the bed or table and extending in the direction of extension of the rotation axis, and a chuck provided on the interlocking base and capable of gripping and releasing the fixed shaft easily realizes the function. . In addition, since the operation and non-operation of the sub-connection mechanism are controlled by the operation and non-operation of the connection mechanism, exclusive control of the connection mechanism and the sub-connection mechanism can be easily realized.

  In addition, the secondary coupling mechanism that operates exclusively with respect to the coupling mechanism is deactivated after the coupling mechanism is activated, and the interlocking platform is brought into a completely free state by the exclusive control that operates before the coupling mechanism is deactivated. Therefore, it is possible to completely prevent inadvertent movement of the interlocking base. The connection mechanism preferably has a simple configuration by a combination of a connection convex portion and a connection hole. In order that the connection convex portion can be inserted into and removed from the connection hole without deviation, the position of the interlocking base needs to be controllable without deviation. The exclusive control that does not leave the interlocking platform in a completely free state also has a function of ensuring that the simply configured coupling mechanism can be switched between operating and inactive.

It is a side view showing the principal part about an example of a grindstone moving type cylindrical grinding device to which the present invention is applied. It is a top view showing the principal part of the cylindrical grinding apparatus of this example. FIG. 2 is a side view corresponding to FIG. 1 showing a state in which the slide base is moved while the slide base and the interlocking base are connected in the cylindrical grinding apparatus of the present example. FIG. 3 is a plan view corresponding to FIG. 2 illustrating a state in which the slide base is moved while the slide base and the interlocking base are connected in the cylindrical grinding apparatus of the present example. FIG. 2 is a side view corresponding to FIG. 1 showing a state in which the slide base and the interlocking base are disconnected and the slide base is moved in the cylindrical grinding apparatus of the present example. FIG. 3 is a plan view corresponding to FIG. 2 illustrating a state in which the slide base and the interlocking base are disconnected and the slide base is moved in the cylindrical grinding apparatus of the present example. It is a side view showing the principal part about another example of the table moving type cylindrical grinding apparatus to which this invention is applied. It is a top view showing the principal part of the cylindrical grinding apparatus of another example. FIG. 8 is a side view corresponding to FIG. 7 showing a state in which the table is moved while the bed and the interlocking base are connected in another example of the cylindrical grinding apparatus. FIG. 9 is a plan view corresponding to FIG. 8 illustrating a state in which the table is moved while the bed and the interlocking base are connected in another example of the cylindrical grinding apparatus. FIG. 8 is a side view corresponding to FIG. 7 showing a state in which the connection between the bed and the interlocking base is released and the table is moved in the cylindrical grinding apparatus of another example. FIG. 9 is a plan view corresponding to FIG. 8 illustrating a state in which the connection between the bed and the interlocking base is released and the table is moved in the cylindrical grinding apparatus of another example.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In the present invention, for example, as shown in FIGS. 1 and 2, a table 1 that rotatably supports a workpiece 6 around a rotation axis R by a pair of centers 11, 11 is provided with a rotation axis extending direction (Z-axis). The grinding wheel base 3 having a grinding wheel 31 for grinding the workpiece 6 is automatically moved in the direction perpendicular to the rotation axis (X-axis direction) to the slide base 2. The present invention is applied to a grindstone moving type cylindrical grinding apparatus (this example) provided on the bed 4 by automatically moving the slide base 2 in the direction in which the rotation axis extends.

  The table 1 is configured integrally with the bed 4 and is fixed in position in the direction in which the rotation axis extends. The table 1 has a workpiece 6 sandwiched between a pair of centers 11 and 11 whose ends are opposed to each other in the direction in which the rotation axis extends, and the center 11 itself rotates or rotates from an external drive member (not shown). The workpiece 6 is supported rotatably. The workpiece 6 of this example is a metal multi-stage cylinder having three types of outer diameters, and rotates with a central axis extending in a direction in which the stages are arranged as a rotation axis R. The centers 11 and 11 are close to and away from each other so that the distance between the tips sandwiching the workpiece 6 can be adjusted (the approach / separation structure is not shown).

  In the table 1 of this example, in order to make the interlocking platform 5 movable in the direction of extension of the rotation axis, the interlocking table slide guides 12 and 12 which are metal rectangular rods on which the interlocking platform 5 is placed and slid, A pair of two is provided in parallel to the direction in which the rotation axis extends. Further, the table 1 of the present example is provided with a fixed shaft 81 which is a metal round bar extending in the direction of extension of the rotation axis between the slide guides 12 for the interlocking table. The fixed shaft 81 and the chuck 82 provided on the interlocking base 5 constitute the sub coupling mechanism 8.

  The slide base 2 is a metal plate-like member having a rectangular shape in plan view. The grinding base 3 is mounted so as to be movable in the direction orthogonal to the rotation axis, and a linear cylinder that advances and retracts the connecting projection 71 constituting the connecting mechanism 7. 73 is attached. The slide base 2 is provided with a pair of asymmetric protrusions having a triangular cross section and a square cross section extending in the direction in which the rotation axis extends. The slide base 2 is provided with slide guides 21 and 21 which are a pair of asymmetrical grooves and ridges having a triangular cross section and a square cross section extending in a direction orthogonal to the rotation axis on the upper surface. The slide base 2 is provided with a ball screw mechanism (not shown) between the slide base 2 and the bed 4 as moving means in the direction of rotation axis extension.

  The grinding wheel base 3 is a metal plate-like member having a rectangular shape in plan view smaller than the slide base 2, and supports a grinding wheel 31 that rotates in a vertical plane, and a motor 32 that is a rotational power source of the grinding wheel 31. Is on. The grindstone table 3 is provided with a pair of asymmetric ridges having a triangular cross section and a square cross section extending in the direction orthogonal to the rotation axis on the bottom surface. The grindstone table 3 is provided with a ball screw mechanism (not shown) between the slide base 2 and moving means in the direction orthogonal to the rotation axis.

  The bed 4 is a base on which the table 1 and the slide base 2 are placed. The slide base 2 is provided with slide guides 41 and 41 which are concave grooves and projections having a triangular cross section and a square cross section extending in the direction in which the rotation axis extends. Provided. As described above, the bed 4 of this example is configured integrally with the table 1, and slide guides 42 and 42 (see FIG. 7 described later) that allow the table 1 to move in the direction in which the rotation axis extends. Not provided.

  The slide base 2 includes a pair of asymmetric protrusions having a cross-sectional triangle and a square shape provided on the bottom surface, and a pair of asymmetric grooves and protrusions having a cross-sectional triangle and a square shape provided on the top surface of the bed 4. , 41 and is automatically moved in the direction of extension of the rotation axis by a moving means (for example, a ball screw mechanism). Further, the grindstone table 3 is a pair of asymmetric ridges having a cross-sectional triangle and a square shape provided on the bottom surface, and a pair of asymmetric grooves and ridges having a cross-sectional triangle and a square shape provided on the top surface of the slide base 2. The slide guides 21 and 21 are engaged and slidably moved and moved in a direction orthogonal to the rotation axis by a moving means (for example, a ball screw mechanism).

  The interlocking platform 5 is a metal plate having a rectangular shape in plan view, and a connecting plate having an advancing / retracting device 512 for supporting the sizing device 51 on the top surface and a connecting hole 72 constituting the connecting mechanism 7 being opened on the bottom surface is located near the slide base 2. It hangs down from the edge of the. The sizing device 51 is attached to an L-shaped support that protrudes upward from the advancing / retracting device 512, and has a measuring element 511 made of a pair of upper and lower plates projecting in a positional relationship facing the grinding wheel 31. The measuring element 511 can adjust the interval by the sizing device 51, and the advance / retreat device 512 advances and retreats (for example, moves in the left-right direction in FIG. 2) to approach the workpiece 6 together with the sizing device 51. Get away.

  In the cylindrical grinding device of this example, which is a grindstone moving type, the sizing device 51 and the slide base 2 can be freely disconnected by the connecting mechanism 7. Here, although the sizing device 51 and the resting device (not shown) have different configurations due to different purposes, the measuring element 511 (sizing device 51) or the contact (not shown) is positioned opposite the grinding wheel 31. Except for the usage modes for the different purposes, the description is valid even if the sizing device 51 is replaced with a steady-state device as it is, except that the arrangement is similar. From now on, the sizing device 51 will be described with reference to this example, and description of the anti-rest device will be omitted (the same applies to other examples described later).

  The connection mechanism 7 includes a connection convex portion 71 attached to the rod end of a linear cylinder 73 provided on the slide base 2 and a connection hole 72 of a connection plate provided on the interlocking base 5. The linear cylinder 73 moves the rod back and forth in the direction orthogonal to the rotation axis, so that the connecting convex portion 71 can be inserted into and removed from the connecting hole 72 in the direction orthogonal to the rotational axis. Engage with the peripheral surface in the direction of rotation axis.

  The connecting convex portion 71 of this example is a flat multi-stage cylinder (a cylinder with a step in a short overall length) that is a metal block, an insertion small diameter portion 711 having a small outer diameter on the side close to the connecting hole 72, and the connecting hole 72 is formed of an engagement large diameter portion 712 having a large outer diameter on the side far from 72, and an intermediate taper portion 713 connecting the insertion small diameter portion 711 and the engagement large diameter portion 712, and the center lines thereof are concentrically aligned (see FIG. (See the enlarged circle in 1). The connecting hole 72 is a hollow cylinder whose inner diameter is equal to the outer diameter of the engaging large diameter portion 712. Although the connecting hole 72 of this example penetrates the connecting plate, it does not need to penetrate if the connecting convex portion 71 can be inserted.

  In the coupling mechanism 7 of this example, when the linear cylinder 73 advances the coupling convex portion 71 toward the coupling hole 72, the insertion small-diameter portion 711 having a small outer diameter is first inserted into the coupling hole 72. The insertion small-diameter portion 711 can be inserted into the connection hole 72 even if there is a positional deviation within the tolerance of the center line of the connection hole 72, with the difference in radius between the outer peripheral surface and the inner peripheral surface of the connection hole 72 as a tolerance. It has become. When the intermediate taper portion 713 reaches the connection hole 72, the intermediate taper portion 713 is connected even if the center line of the connection protrusion 71 is displaced within the tolerance with respect to the center line of the connection hole 72. The large-diameter engaging portion 711 is slidably contacted with the inner peripheral surface of the hole 72 and guided to the connecting hole 72. In this way, the engaging large diameter portion 711 equal to the inner diameter of the connecting hole 72 can be reliably inserted into the connecting hole 72 and engaged.

  Further, the cylindrical grinding apparatus of this example includes a sub-connection mechanism 8 that operates exclusively with the connection mechanism 7. The sub-coupling mechanism 8 includes a fixed shaft 81 provided in the table 1 and extending in the direction of extension of the rotation axis, and a pneumatic chuck 82 provided on the bottom surface of the interlocking platform 5. When the chuck 82 grips the fixed shaft 81, the interlocking table 5 is fixed in position on the table 1. Conversely, when the chuck 82 releases the fixed shaft 81, the interlocking table 5 becomes free from the table 1 and moves in the extending direction of the rotation axis. Be free.

  The sub coupling mechanism 8 of this example operates exclusively with the coupling mechanism 7 using a non-contact sensor (not shown) provided in the coupling hole 72 as a switch. That is, when the connecting mechanism 7 inserts the connecting convex portion 71 into the connecting hole 72, the non-contact sensor detects the connecting convex portion 71, the sub-connecting mechanism 8 is deactivated, and the chuck 82 releases the fixed shaft 81. When the auxiliary connecting mechanism 8 is operated and the chuck 82 grips the fixed shaft 81, the connecting convex portion 71 is pulled out from the connecting hole 72, and the connection by the connecting mechanism 7 is released. In this way, the interlocking platform 5 is prevented from being in a completely free state (a state where it can be moved by other movement).

  In addition, the cylindrical grinding apparatus of this example includes a control device that controls the operation and non-operation of the slide base 2, the grinding wheel base 3, the grinding wheel 31, the coupling mechanism 7 and the sub coupling mechanism 8, and hydraulic pressure that is a power source of each part. A source, a compressed air source, etc. are provided, but are omitted in each figure. Only one control device may be installed in order to process all operations and non-operations collectively, or a plurality of control devices may be installed corresponding to each unit, and the control devices may be linked. In the case of this example, since the coupling mechanism 7 and the sub coupling mechanism 8 are controlled exclusively, it is preferable to use the same control device.

  A usage mode of the sizing device 51 in the cylindrical grinding device of this example will be described. As shown in FIG. 1 and FIG. 2, when the connecting mechanism 7 is activated and the connecting projection 71 is inserted into the connecting hole 72, the sub-connecting mechanism 8 is inactive and the chuck 82 releases the fixed shaft 81. The grinding wheel 31 of the grinding wheel base 3 and the measuring element 511 of the sizing device 51 coincide with the extending direction of the rotation axis and are in a facing positional relationship. For this reason, if the grinding wheel 31 is grinding the maximum diameter portion 61 of the workpiece 6, the measuring element 511 also measures the outer diameter of the maximum diameter portion 61. For this reason, the position of the interlocking platform 5 is not fixed to the table 1 but is fixed to the slide base 2 that does not move.

  If the slide base 2 is moved in the direction of rotation axis extension while the coupling mechanism 7 is activated and the sub-coupling mechanism 8 is deactivated, the slide base 2 is placed on the slide base 2 as seen in FIGS. The grinding wheel 31 of the grinding wheel base 3 and the sizing device 51 placed on the interlocking base 5 connected to the slide base 2 move in the direction in which the rotation axis extends (the grinding wheel 31 is black). (See the white arrow for the fill arrow and sizing device 51). Since the sub coupling mechanism 8 is inactive, the movement of the interlocking platform 5 is not hindered. Thus, when the grinding wheel 31 grinds the minimum diameter portion 62 of the workpiece 6, the measuring element 511 also measures the outer diameter of the minimum diameter portion 62.

  Thus, as long as the connection mechanism 7 is operating, the sizing device 51 can be associated with the grinding part of the workpiece 6 to be ground by the grinding wheel 31, and the measurement part can be measured. Further, the present invention has an advantage that the sizing device 51 can be moved synchronously if the slide base 2 is moved without requiring an operation for moving the sizing device 51. Further, since the grinding wheel 31 and the tracing stylus 511 maintain the opposing positional relationship, there is an advantage that the position adjustment is not necessary after the sizing device 51 is moved. All of these advantages bring about a time-saving effect of measurement work using the sizing device 51.

  In the present invention, the grinding wheel 31 and the measuring element 511 of the sizing device 51 can be offset. When the coupling mechanism 7 is deactivated and the sub coupling mechanism 8 is activated to move the slide base 2 in the direction of the rotation axis extending direction, as shown in FIGS. 5 and 6, the grindstone placed on the slide base 2 The grinding wheel 31 of the table 3 moves in the direction of extending the rotation axis (black arrow in FIG. 6), but the sizing device 51 placed on the interlocking table 5 released from the slide base 2 is arranged to extend the rotation axis. It does not move in the current direction (refer to the dashed dashed arrow in FIG. 6). The sub coupling mechanism 8 fixes the position of the interlocking platform 5 to the table 1. Thus, even when the grinding wheel 31 starts to grind the minimum diameter portion 62 of the workpiece 6, the measuring element 511 measures the outer diameter of the maximum diameter portion 61.

  Although illustration is omitted, after operating the connecting mechanism 7 and moving the slide base 2 in the rotation axis extending direction while keeping the sub-connecting mechanism 8 inactive, the connecting mechanism 7 is inoperative and the sub-connecting mechanism 8 is not operated. Even if only the slide base 2 is moved in the rotation axis extending direction, the grinding wheel 31 and the measuring element 511 of the sizing device 51 can be in an offset positional relationship. In this case, for example, contrary to the above, the measuring wheel 511 can measure the outer diameter of the minimum diameter portion 62 while the grinding wheel 31 is grinding the maximum diameter portion 61 of the workpiece 6.

  When the interlocking base 5 is fixed to the table 1 by the sub-connecting mechanism 8 and only the slide base 2 is moved in the extending direction of the rotation axis (in the case of FIGS. 5 and 6), the slide base 2 and the interlocking base 5 are connected. When the movable base 5 is moved in the extending direction of the rotation axis, and then the interlocking base 5 is fixed to the table 1 by the sub-coupling mechanism 8 and only the slide base 2 is moved in the extending direction of the rotating axis, the movement of the slide base 2 is Since it is accurate, the offset positional relationship between the grinding wheel 31 and the measuring element 511 of the sizing device 51 can be set accurately. This is also an advantage of the present invention in which the grinding wheel 31 and the measuring element 511 of the sizing device 51 can be in an offset positional relationship.

  As shown in FIGS. 7 and 8, in the present invention, a table 1 that rotatably supports a workpiece 6 around a rotation axis R by a pair of centers 11 and 11 is provided with a rotation axis extending direction (Z-axis direction). The grinding wheel base 3 having the grinding wheel 31 for grinding the workpiece 6 is automatically moved only in the direction orthogonal to the rotation axis (X-axis direction). The present invention is also applied to a provided table moving type cylindrical grinding apparatus (another example).

  The table 1 is a metal plate-like member having a rectangular shape in plan view. The work piece 6 is sandwiched between a pair of centers 11 and 11 having their tips opposed to each other in the extending direction of the rotation axis. The workpiece 6 is rotatably supported by receiving rotational power from an external drive member (not shown). The workpiece 6 of another example is a metal multistage cylinder having three types of outer diameters, and rotates with a central axis extending in a direction in which the stages are arranged as a rotation axis R. The centers 11 and 11 are close to and away from each other so that the distance between the tips sandwiching the workpiece 6 can be adjusted (the approach / separation structure is not shown). The table 1 is provided with a pair of asymmetric convex ridges having a triangular cross section and a square cross section extending in the extending direction of the rotation axis on the bottom surface, and a ball screw mechanism (not shown) between the table 1 and the bed 4 as a moving means in the extending direction of the rotating axis. Is provided.

  In another example of the table 1, the interlocking table slide guides 12 and 12, which are metal metal square bars on which the interlocking table 5 is placed and slid, in order to make the interlocking table 5 movable in the extending direction of the rotation axis. Are provided in a pair in parallel with the direction in which the rotation axis extends. Further, the table 1 of another example is provided with a fixed shaft 81 which is a metal round bar extending in the direction of extension of the rotation axis between the slide guides 12 and 12 for the interlocking table. The fixed shaft 81 and the chuck 82 provided on the interlocking base 5 constitute the sub coupling mechanism 8.

  The grinding wheel base 3 is a metal plate-like member having a rectangular shape in plan view smaller than the grinding wheel base 9 which is a metal block fixed to the bed 4 and supports a grinding wheel 31 that rotates in a vertical plane. A motor 32 which is a rotational power source of the grinding wheel 31 is mounted. The grindstone table 3 is provided with a pair of asymmetric ridges having a triangular cross section and a square cross section extending in the direction orthogonal to the rotation axis on the bottom surface. The wheel head 3 is provided with a ball screw mechanism (not shown) between the wheel head base 9 and moving means in the direction orthogonal to the rotation axis.

  The grinding wheel base 9 is a base on which the grinding wheel base 3 is placed while being fixed to the bed as a part of the bed 4, and a slide guide 91 that is a concave groove and a convex groove having a triangular cross section and a square cross section extending in the extending direction of the rotation axis. , 91 are provided on the upper surface. The bed 4 is a base on which the table 1 is placed. The bed 4 is provided with slide guides 42 and 42 which are concave grooves and ridges having a triangular cross section and a square cross section extending in the extending direction of the rotation axis. The bed 4 is a base on which the grindstone base 9 and the table 1 are placed. In addition to fixing the position of the grindstone base 9, the bed 4 has a triangular groove and a rectangular concave groove extending in the direction in which the rotation axis extends. Slide guides 42, 42 which are ridges are provided on the upper surface.

  The grindstone table 3 is a pair of asymmetric ridges having a triangular and cross-sectional shape provided on the bottom surface and a pair of asymmetric grooves and ridges having a triangular and cross-sectional shape provided on the upper surface of the grindstone base 9. The guides 91 and 91 are engaged and slidably moved, and moved in a direction orthogonal to the rotation axis by a moving means (for example, a ball screw mechanism). Further, the table 1 includes a pair of asymmetric protrusions having a triangular cross section and a square cross section provided on the bottom surface, and a pair of asymmetric grooves and protrusions having a cross sectional triangle and a square cross section provided on the top surface of the bed 4. 42 and 42 are engaged and slidably contacted with each other, and are automatically moved in the extending direction of the rotation axis by a moving means (for example, a ball screw mechanism).

  The interlocking platform 5 is a rectangular metal plate in plan view, and a connecting plate having an advancing / retracting device 512 for supporting the sizing device 51 on the top surface and a connecting hole 72 constituting the connecting mechanism 7 on the bottom surface is provided on the grinding wheel base 9. It hangs down from the end edge. The sizing device 51 is attached to an L-shaped support that protrudes upward from the advancing / retracting device 512, and has a measuring element 511 made of a pair of upper and lower plates projecting in a positional relationship facing the grinding wheel 31. The measuring element 511 can adjust the interval by the sizing device 51, and the advance / retreat device 512 moves the support tool forward / backward (for example, moves in the left / right direction in FIG. 7) to approach the workpiece 6 together with the sizing device 51. Get away.

  In another example of the table grinding type cylindrical grinding device, the sizing device 51 and the bed 4 can be freely disconnected by the connecting mechanism 7. The connection mechanism 7 includes a connection convex portion 71 attached to the rod end of the linear cylinder 73 provided on the bed 4 and a connection hole 72 of a connection plate provided on the interlocking base 5. The linear cylinder 73 moves the rod back and forth in the direction orthogonal to the rotation axis, so that the connecting convex portion 71 can be inserted into and removed from the connecting hole 72 in the direction orthogonal to the rotational axis. Engage with the peripheral surface in the direction of rotation axis. Since the connection convex part 71 and the connection hole 72 are the same as the said illustration (refer FIG.1 and FIG.2), description is abbreviate | omitted.

  Further, another example of the cylindrical grinding apparatus includes a sub-connection mechanism 8 that operates exclusively with the connection mechanism 7. The sub-coupling mechanism 8 includes a fixed shaft 81 provided in the table 1 and extending in the direction of extension of the rotation axis, and a pneumatic chuck 82 provided on the bottom surface of the interlocking platform 5. When the chuck 82 grips the fixed shaft 81, the interlocking table 5 can move integrally with the table 1. Conversely, when the chuck 82 releases the fixed shaft 81, the interlocking table 5 becomes free from the table 1 and the table 1. The position is relatively fixed even if the is moved. The configuration, operation, and non-operation of the sub-coupling mechanism 8 are the same as in the above example (see FIGS. 1 and 2), and thus description thereof is omitted.

  In addition, another example of the cylindrical grinding apparatus includes a control device that controls the operation and non-operation of the grinding wheel base 3, the grinding wheel 31, the coupling mechanism 7, and the sub coupling mechanism 8, and a hydraulic power source and a compressed air that are power sources of each part. A source is provided, but is omitted in each figure. Only one control device may be installed in order to process all operations and non-operations collectively, or a plurality of control devices may be installed corresponding to each unit, and the control devices may be linked. In the case of another example, since the connecting mechanism 7 and the sub-connecting mechanism 8 are controlled exclusively, it is preferable to use the same control device.

  A usage mode of the sizing device 51 in another example of the cylindrical grinding device will be described. As shown in FIGS. 7 and 8, when the connecting mechanism 7 is activated and the connecting convex portion 71 is inserted into the connecting hole 72, the sub-connecting mechanism 8 is inactive and the chuck 82 releases the fixed shaft 81. The grinding wheel 31 of the grinding wheel base 3 and the measuring element 511 of the sizing device 51 coincide with the extending direction of the rotation axis and are in a facing positional relationship. For this reason, if the grinding wheel 31 is grinding the maximum diameter portion 61 of the workpiece 6, the measuring element 511 also measures the outer diameter of the maximum diameter portion 61. The interlocking base 5 is connected to the bed 4 because the sub-connecting mechanism 8 is inactive, and the position is relatively fixed even if the table 1 moves.

  From now on, when the table 1 is moved in the direction of extending the rotation axis while the connecting mechanism 7 is operated and the sub-connecting mechanism 8 is not operated, the table 1 is supported by the table 1 as seen in FIGS. The workpiece 6 moves in the direction in which the rotation axis extends (see the black arrow for the workpiece 6), but the sizing device 51 placed on the interlocking platform 5 connected to the bed 4 moves relative to the table 1. The position is relatively fixed and does not move in the direction in which the rotation axis extends (see the white broken line arrow for the sizing device 51). Since the sub coupling mechanism 8 is inactive, the movement of the table 1 is not hindered. Thus, when the grinding wheel 31 grinds the minimum diameter portion 62 of the workpiece 6, the measuring element 511 also measures the outer diameter of the minimum diameter portion 62.

  Further, when the connecting mechanism 7 is deactivated and the sub-connecting mechanism 8 is activated to move the table 1 in the direction of extending the rotation axis, as shown in FIGS. 11 and 12, the grinding wheel 31 of the grinding wheel base 3 is moved to the grinding wheel 31. On the other hand, the workpiece 6 supported by the table 1 moves in the extending direction of the rotation axis (refer to the black arrow in FIG. 12), and of course, the sizing device mounted on the interlocking base 5 integrated with the table 1. 51 also moves with the workpiece 6 in the direction of extension of the rotational axis (see the white arrow in FIG. 12). The sub-connection mechanism 8 connects the table 1 and the interlocking base 5 and interlocks the interlocking base 5 with the table 1. Thus, even when the grinding wheel 31 starts to grind the minimum diameter portion 62 of the workpiece 6, the measuring element 511 measures the outer diameter of the maximum diameter portion 61.

  Although illustration is omitted, after operating the connecting mechanism 7 and moving the table 1 in the direction of the rotation axis extending while the sub-connecting mechanism 8 is inactive, the connecting mechanism 7 is inoperative, and the sub-connecting mechanism 8 is Even if the table 1 and the interlocking platform 5 are moved together in the direction of the rotation axis extending, the grinding wheel 31 and the measuring element 511 of the sizing device 51 can be in an offset positional relationship. In this case, for example, contrary to the above, the measuring wheel 511 can measure the outer diameter of the minimum diameter portion 62 while the grinding wheel 31 is grinding the maximum diameter portion 61 of the workpiece 6.

  Thus, as long as the connection mechanism 7 is operating, the grinding part of the workpiece 6 to be ground by the grinding wheel 31 can be associated and the measurement part can be measured. In the present invention, the operation of moving the sizing device 51 is not required, the connection mechanism 7 is deactivated, the sub-connection mechanism 8 is operated, and the table 1 is moved to synchronize with the table 1. Since the sizing device 51 is moved, there is an advantage that the positional relationship between the workpiece 6 supported by the table 1 and the measuring element 511 of the sizing device 51 is not changed. This is an advantage that, when the positional relationship between the grinding wheel 31 and the workpiece 6 is shifted, the position adjustment of the sizing device 51 is not necessary, and the time-saving effect of the measurement work using the sizing device 51 is brought about.

  Further, when the interlocking base 5 is fixed to the bed 4 by the connecting mechanism 7 and only the table 1 is moved in the extending direction of the rotation axis (in the case of FIGS. 11 and 12), the bed 4 and the interlocking base 5 are connected. When the table 1 is moved in the rotation axis extending direction, and then the interlocking table 5 is connected to the table 1 by the sub-connecting mechanism 8 to move the table 1 and the interlocking table 5 integrally in the rotation axis extending direction, Since the movement of the table 1 is accurate, the offset positional relationship between the grinding wheel 31 and the measuring element 511 of the sizing device 51 can be set accurately. This is also an advantage of the present invention in which the grinding wheel 31 and the measuring element 511 of the sizing device 51 can be in an offset positional relationship.

1 table
11 Center 2 Slide base 3 Wheelhead
31 grinding wheel
32 motor 4 bed 5 interlocking base
51 Sizing device
511 Measuring element 6 Workpiece
61 Maximum diameter part
62 Minimum diameter part 7 Connection mechanism
71 Connecting projection
711 Insertion small diameter part
712 Hanging large diameter part
713 Intermediate taper
72 Connecting hole
73 Linear motion cylinder 8 Sub coupling mechanism
81 Fixed shaft
82 Chuck 9 Whetstone base R Rotation axis

Claims (8)

A table that rotatably supports the workpiece around the rotation axis R is fixed on the rotation axis extending direction and provided on the bed, and a grinding wheel table having a grinding wheel for grinding the workpiece is provided in the direction orthogonal to the rotation axis. In the cylindrical grinding apparatus provided on the bed so as to be automatically movable and provided on the slide base, the slide base is automatically movable in the extending direction of the rotation axis.
A work sizing device or anti-vibration device was placed on the table, and an interlocking base that could be moved in the direction of rotation of the rotation axis was provided on the table, and the slide base and the interlocking base could be uncoupled by a connecting mechanism. A cylindrical grinding device characterized by the above. The coupling mechanism is a combination of a coupling convex portion that crosses in the rotation axis extending direction from one of the slide base and the interlocking base and a coupling hole provided on the other of the slide base and the interlocking base, The cylindrical grinding apparatus according to claim 1, wherein the connection between the slide base and the interlocking base is released by inserting / removing the connection convex portion into / from the connection hole. The interlocking base can be freely disconnected by a bed or table and a sub-connecting mechanism, and if the connecting mechanism is activated to connect the slide base and the interlocking base, the sub-connecting mechanism is inactivated and the interlocking base is turned into the bed or table. 3. When the connecting mechanism is deactivated and the connection between the slide base and the interlocking base is released, the sub-connecting mechanism is operated to connect the interlocking base to the bed or table. Cylindrical grinding machine. 4. The cylindrical grinding according to claim 3, wherein the sub-connecting mechanism includes a fixed shaft provided in the bed or table and extending in the direction of extension of the rotation axis, and a chuck provided on the interlocking base and capable of gripping and releasing the fixed shaft. apparatus. A table for rotatably supporting the workpiece around the rotation axis R is provided on the bed so as to be automatically movable in the extending direction of the rotation axis, and a grinding wheel table having a grinding wheel for grinding the workpiece is orthogonal to the rotation axis. In a cylindrical grinding machine provided on the bed that is automatically movable only in the direction,
A work sizing device or anti-vibration device was placed on the table, and an interlocking base that could be moved in the direction of rotation of the rotation axis was provided on the table, and the bed and the interlocking base could be disconnected with a connecting mechanism. A characteristic cylindrical grinding device. The coupling mechanism is a combination of a coupling convex portion that crosses in the rotation axis extending direction from one of the bed and the interlocking platform and a coupling hole provided in the other of the bed and the interlocking platform, and the coupling The cylindrical grinding apparatus according to claim 5, wherein the connection between the bed and the interlocking base is released by inserting and removing the convex portion into the connection hole. The interlocking base can be freely disconnected by the table and the sub-connecting mechanism. When the connecting mechanism is activated and the bed and the interlocking base are connected, the sub-connecting mechanism is deactivated and the interlocking base is released from the table and connected. 7. The cylindrical grinding apparatus according to claim 5, wherein when the mechanism is deactivated and the connection between the bed and the interlocking base is released, the sub-connecting mechanism is operated to connect the interlocking base to the table. The cylindrical grinding apparatus according to claim 7, wherein the sub-connecting mechanism includes a fixed shaft provided in the table and extending in a direction in which the rotation axis extends, and a chuck provided on the interlocking base and capable of gripping and releasing the fixed shaft.

Images