JP2519925Y2 - Automatic grindstone and grindstone cover changer for surface grinders - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a grindstone and a grindstone cover automatic exchange device for a grindstone head of a portal type surface grinder or the like.

[Conventional technology]

Conventionally, a grindstone and a grindstone cover automatic changer equipped in a gate type surface grinder include a plurality of sets of grindstones and grindstone covers (hereinafter, grindstones) at intervals on a circumference centered on a turning center of a turntable type magazine. It is known that one of these whetstone sets is installed and one of these whetstone sets is placed at the whetstone attachment / detachment position on the grinder by indexing the magazine so that the whetstone set can be replaced (special feature). Kaisho 63-89
See Japanese Patent No. 266).

[Problems to be solved by the device]

In this grindstone and grindstone cover automatic changing device, since the grindstones are stored on the turntable type magazine, it is impossible to store the set number of grindstones more than the number once decided at the time of design. For this reason,
In the future, even if it is desired to increase the types of grindstones, there is no degree of freedom of expansion, and in order to increase the types of grindstones, it is inevitable that the entire turntable magazine must be rebuilt.

[Purpose of device]

This invention was made to solve the above problems,
It is an object of the present invention to provide a grindstone and a grindstone cover automatic changing device which can easily increase the types of grindstones in the future and are effective for the production of various kinds in small quantities.

[Means for solving the problem]

As shown in the drawing, a grindstone and a grindstone cover automatic exchanging device in a surface grinder of the present invention has a plurality of wheel stockers 1 for storing a grindstone set S arranged in a line outside a grinder 2 as shown in the drawing. To the grinder 2 side of the first carrier 12 movable along the wheel stocker row,
The second carrier movable between the first carrier 12 and the grinding machine 2
A carrier 34 is provided, and a grinding wheel set mounting table 34 is provided on the upper side of the second carrier 34 on the grinding machine 2 side and the first carrier 12 side with the turning center O interposed therebetween.
When the table is at the moving end position on the grinder 2 side, the table 43 on the grinder 2 side coincides with the grindstone mounting / removing position on the grinder 2 180
A first turntable 41 is provided on which a turntable 41 can be turned, and a whetstone set S can be transferred to the first carrier 12 between the first carrier 12 and the selected wheel stocker 1.
A transfer device is provided and the first carrier 12 or the second carrier 34 is provided.
In addition, a second transfer device capable of transferring the grindstone set S between the carriers 12 and 34 is provided, and the above-mentioned object is achieved by such a configuration.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

In the figure, 1 is a plurality of wheel stockers (5 in the embodiment).
Are arranged outside the grinding machine 2 so as to be orthogonal to the longitudinal direction of the table 3 of the grinding machine 2.

Each wheel stocker 1 is provided with a roller table 5 whose transport direction is orthogonal to the longitudinal direction of the table 3 on a gantry 4, and a stopper 6 is provided at the end of the roller table 5 on the side opposite to the grinding machine 2. The wheel set 7 can be supported on the wheel 5 and the whetstone set S can be stored.

A grindstone support 8 is provided above the wheel cart 7, and connector halves 9 and 10 are attached to both lower sides of the wheel cart 7 on the side opposite to the grinding machine 2. Also,
At the bottom of the wheel cart 7, there are guide grooves along the transported direction.
11 are provided.

12 is the first carrier, which is the grinder 2 of the wheel stocker 1.
It is supported via a rail 1 on the upper part of a carrier base 13 provided on the side. Then, a chain 17 is connected to the first carrier 12 between the sprockets 15 and 16 provided at both ends of the carrier base 13 and is wound endlessly. And
The motor 18 moves the first carrier 12 along the row of wheel stockers through the chain and sprocket mechanism.
Positioning / stopping can be performed in front of each wheel stocker 1 by a pin type positioning mechanism described later, and the first carrier 12
And a second carrier 34, which will be described later, can be placed in a carrier-to-carrier grinding stone transfer position Q (in the embodiment, in front of the second wheel stocker 1 from the right in FIG. 1). ing. In case the wheel stocker 1 is added in the future, the carrier base 13 is constructed by connecting a plurality of base units of a predetermined length with bolts so that the rail 14 can be extended, and the carrier moving stroke can be lengthened. In addition, the chain sprocket mechanism that can be extended to move the first carrier 12 by increasing the number of links is used.

The first carrier 12 mounts a roller table 20 on the upper part of the moving carriage 19 so as to be vertically movable along a guide 21 in a transport direction orthogonal to the longitudinal direction of the table 3, and supports it via a vertically moving cylinder 22. The vertical cylinder 22 allows the roller table 20 to move up and down by a fixed stroke. 23 is a screw adjustment type stopper for setting the upper moving end position.

In order to position and stop the first carrier 12 in front of each wheel stocker 1, a positioning pin 24 having a taper formed at the tip end is attached to the side of the anti-grinding machine 2 of the moving carriage 19 at the tip end side. On the side of the grinder 2 of the gantry 4, there is provided a positioning sleeve 25 that can be engaged with and disengaged from the positioning pin 24 for each wheel stocker 1, and the positioning cylinder 26 moves the positioning pin 24 downward. When engaged with the positioning sleeve 25, the first carrier 12 can be positioned and stopped in front of the wheel stocker 1 provided with the positioning sleeve 25.

The roller table 20 of the first carrier 12 has a large number of rollers 27 arranged in parallel at an upper portion thereof, and a guide ridge engaging with the guide groove 11 of the wheel cart 7 at an intermediate portion between the roller rows. A portion 28 is provided so that the wheel cart 7 can be moved while being supported by the roller 27 and being guided by the guide rib portion 28.

A lift table 29 is provided on one side of the roller table 20 as a guide 30.
Is mounted so that it can be moved up and down along the
Is supported through. A loading / unloading cylinder 32 is installed on the lifting table 29, and a connector half 33 is provided at the tip of the loading / unloading cylinder 32. Then, when the first carrier 12 is positioned with respect to the wheel stocker 1, the connector half 33 is formed so as to be engageable with and disengageable from the connector half 9 of the wheel cart 7 supported on the roller table 5 or 20 by elevating and lowering by the elevating cylinder 1. ing.

Reference numeral 34 denotes a second carrier, which is supported above a carrier base 35 provided between the grinder 2 and the first carrier 12 via a rail 36. The moving cylinder 37 allows the second carrier 34 to move in the direction perpendicular to the wheel stocker row, and the stoppers 38 and 39 at the ends of the carrier base 35 allow positioning / stopping between the grinding machine 2 side and the first carrier 12. Has become.

In this second carrier 34, a turntable 41 is attached to the upper part of a moving carriage 40 via a turning mechanism 42, and the turning center O of the turntable 41 is sandwiched between the grinder 2 side and the first carrier 12 side, respectively. The roller table 43 whose conveyance direction is orthogonal to the longitudinal direction of the table 3 is provided at the point symmetrical position. When the second carrier 34 is at the moving end position on the side of the grinder 2, the roller table 43 on the grinder 2 side can be arranged so as to coincide with the grindstone mounting position P on the grinder 2, and
When the second carrier 34 is at the moving end position on the first carrier 12 side, the first carrier 12 side roller table 43 can transfer the grindstone set S to and from the first carrier 12, and the carrier-to-carrier whetstone transfer position Q can be transferred. It can be placed in ‘

The turntable 41 is used to rotate the turntable 41.
A drive shaft 45 attached to a moving carriage 40 via a bearing 44 is connected to the center of the drive shaft 40, and a worm wheel 46 is attached to the lower end of the drive shaft 45, and a worm 47 is engaged with the worm wheel 46. Through this worm gear mechanism, the motor 48 allows the turntable 41 to rotate forward and backward by 180 °.

On both sides of the roller table 43 on the second carrier 34, a loading / unloading cylinder 49 and a guide bar 50 facing each other are provided.
The connector half 51 is provided at the tip of the loading / unloading cylinder 49. When the loading / unloading cylinder 49 is extended (or retracted), the wheel half 7 (connector half 10) is guided by the guide half 50 by the connector half 51. While pushing (or pulling), the wheel cart 7 can be pushed out (or pulled in) from the roller table 43. Further, the roller table 43 on the first carrier 12 side is arranged at the carrier-to-carrier whetstone transfer position Q ', and
In a state of being aligned with the roller table 20 of 12, the connector half 10 of the wheel cart 7 supported on the roller table 20 by the upward movement (or the downward movement) of the vertical movement cylinder 22 is detachably engageable with the connector half 51. Are formed.

In this embodiment, the first carrier 12 is provided with a loading / unloading cylinder 32 which can be moved up and down, and at the tip of the loading / unloading cylinder 32,
The first transfer device was configured by providing the connector half 9 of the wheel cart 7 and the connector half 33 that can be engaged and disengaged by raising and lowering the loading / unloading cylinder 32, and the first carrier 12 and the selected wheel stocker 1 It goes without saying that the first transfer device capable of transferring the whetstone set S between them is not limited to that of the embodiment.

Further, the second carrier 34 is provided with an inlet / outlet cylinder 49, and a connector half 51 which can be engaged with and disengaged from the connector half 10 of the wheel cart 7 by vertical movement of the first carrier 12 side is provided at the tip of the inlet / outlet cylinder 49. Although the two transfer device is constructed, the loading / unloading cylinder 49 may be provided in the first carrier 12, and the second transfer device capable of transferring the grindstone set S between the both carriers 12, 34 is the one of the embodiment. It goes without saying that it is not limited to.

In the above configuration, during grinding, the second carrier 34 is at the moving end position on the first carrier 12 side, and the second carrier 34
The upper roller table 43 on the first carrier 12 side is placed at the grinder stone transfer position Q'between carriers and is on standby. On the roller table 43 on the grinding machine 2 side, the wheel cart 7 holding only the grindstone support 8 without the grindstone set S is placed. In addition, the first carrier 12 on the second carrier 34
On the side roller table 43, the wheel cart 7 holding the grindstone set S for the next processing is placed via the grindstone support 8. One of the wheel carts 7 has one side (connector half 10) engaged and held by the connector half 51 at the tip of the inlet / outlet cylinder 49, and the other side abuts the guide bar 50. On the other hand, the first carrier 12 is located at the carrier-to-carrier whetstone transfer position Q, and the wheel cart 7 is empty on the roller table 20 of the first carrier 12.

When the grinding process is completed and the grindstone set S is replaced, the procedure is as follows.

By the retracting operation of the moving cylinder 37, the second carrier 34 is moved to the moving end position on the grinding machine 2 side, and the second carrier 34 is moved.
The upper grinder 2 side roller table 43 is arranged at the grindstone attachment / detachment position P.

The revolving grindstone head of the grinder 2 is retracted to the grindstone mounting / removing position P, and the used grindstone set S is unclamped from the clamp device provided on the revolving grindstone head to support the grindstone on the wheel cart 7 on the roller table 43 on the grinder 2 side. It is held via the table 8.

The turntable 38 is rotated 180 ° by the drive of the motor 48, and the grindstone set S for the next processing on the roller table 43 on the first carrier 12 side is arranged at the grindstone attaching / detaching position P. This grindstone set S is provided for the turning grindstone head. It is clamped by the clamping device (completion of grinding stone replacement). On the other hand, the used whetstone set S on the roller table 43 on the grinding machine 2 side is arranged on the first carrier 12 side by the turning operation.

By the extension operation of the moving cylinder 37, the second carrier 34 is again moved to the moving end position on the first carrier 12 side, and the used grindstone set S on the roller table 43 on the first carrier 12 side is moved.
Is located at the carrier-to-carrier whetstone exchange position Q '.

The wheel cart 7 on the second carrier 34 is moved from the roller table 43 on the first carrier 12 side to the roller table 20 of the first carrier 12 by the extension operation of the loading / unloading cylinder 49.
The used grindstone set S is transferred onto the first carrier 12.

The roller table 20 of the first carrier 12 is moved up (or down) by the extension (or retraction) operation of the vertically moving cylinder 22 so that the connector half 10 of the wheel cart 7 is removed from the connector half 51 at the tip of the inlet / outlet cylinder 49. At the same time, the raising / lowering cylinder 31 raises / lowers the loading / unloading cylinder 32 so that the connector half 33 at the tip of the loading / unloading cylinder 32 is engaged with the connector half 9 of the wheel cart 7. Further, the connector half 51 and the like are retracted by the retracting operation of the retracting cylinder 49 so that the movement of the first carrier 12 is not hindered.

After the first carrier 12 is moved from the inter-carrier whetstone transfer position Q to the front of the selected wheel stocker 1 by the drive of the motor 18, the positioning pin 26 is engaged with the positioning sleeve 25 by the positioning cylinder 26, The pin type positioning mechanism positions and positions the first carrier 12 with respect to the wheel stocker 1. If the first carrier 12 does not have to move from the carrier-to-carrier grindstone transfer position Q, this step can be omitted.

By the extension operation of the in / out cylinder 32, the in / out cylinder 32
While being held by the connector half 33 at the tip, the wheel cart 7 is moved from the roller table 20 of the first carrier 12 onto the roller table 5 of the wheel stocker 1, and the used grindstone set S is stored in the wheel stocker 1.
Therefore, the roller table 20 of the first carrier 12 becomes empty.

The drive of the motor 18 causes the first carrier 12 to store the wheel set S for the next processing.
After being moved to the front, the positioning pin 26 is engaged with the positioning sleeve 25 by the positioning cylinder 26, and the first carrier 12 is positioned and arranged with respect to the wheel stocker 1 by this pin type positioning mechanism.

As the lifting cylinder 31 is moved up and down, the connector half 33 at the tip of the loading / unloading cylinder 32 is engaged with the connector half 9 of the wheel cart 7 supported on the roller table 5 of the wheel stocker 1.

The wheel cart 7 is moved from the roller table 5 of the wheel stocker 1 to the roller table 20 of the first carrier 12 by the retracting operation of the take-in / out cylinder 32, and the grinding stone set S for the next processing is placed on the first carrier 12. It

The first carrier 12 is moved to the carrier-to-carrier whetstone transfer position Q by driving the motor 18, and the elevating cylinder 31 raises and lowers the take-in cylinder 32 to move the connector half 9 of the wheel cart 7 to the connector at the tip of the take-in cylinder 32. Half 33 is removed.

By the extension operation of the in / out cylinder 49 and the extension (or retraction) operation of the vertical movement cylinder 22, the connector half 51 at the tip of the in / out cylinder 49 is engaged with the connector half 10 of the wheel cart 7 supported on the roller table 20. .

When the retracting cylinder 49 is retracted, the wheel cart 7 moves from the roller table 20 of the first carrier 12 to the second carrier.
34 is moved onto the roller table 43 on the first carrier 12 side,
The next processing grindstone set S held on the wheel cart 7 stands by for the next replacement work.

 After that, the above procedure is repeated.

[Effect of device]

As described above, according to this invention, since the grindstone set can be replaced by the turntable method, the replacement time can be short. In addition, a plurality of wheel stockers that can store the whetstone sets are lined up outside the grinding machine.While exchanging the whetstone sets by the turntable method, the used whetstone sets are discharged from the turntable and the wheel stocker is used. Since it can be stored in one wheel stocker in the row and the wheel set for the next processing can be supplied to the turntable from another wheel stocker, it is easy to increase the number of storage sets by adding the wheel stocker in the wheel stocker row. In addition to being effective for small-lot production of various types, it is not necessary to remake the entire turntable in order to increase the types of grindstones as in the past.

[Brief description of drawings]

1 and 2 are a plan view showing an entire embodiment of the present invention, a left side view, and FIG. 3 is an enlarged sectional view of an essential part of FIG. , 4th
FIG. 5, FIG. 5 and FIG. 6 are front sectional views taken along the line A to FIG.
A right side sectional view along a line B to B, a plan view, and FIG. 7 are enlarged sectional views of essential parts of FIG. S: Whetstone set, P: Whetstone attachment / detachment position, Q,
Q '... Wheel transfer position between carriers, 1 ... Wheel stocker, 2 ... Grinding machine, 3 ... Table, 4 ... Stand, 5 ... Roller table, 6 ... Stopper, 7 ...
Wheel cart, 8 ... Grindstone support, 9, 10 ... Connector half, 12 ... First carrier, 13 ... Carrier base, 14 ... Rail, 15, 16 ... Sprocket, 17 ... Chain, 18 ... … Motor, 20 …… Roller table, 22 ……
Vertical movement cylinder, 23 …… stopper, 24 …… positioning pin, 25 …… positioning sleeve, 26 …… positioning cylinder, 31 …… elevating cylinder, 32 …… removal cylinder, 33…
... Connector half, 34 ... second carrier, 35 ... carrier base, 36 ... rail, 37 ... moving cylinder, 38,
39 …… Stopper, 41 …… Turntable, 42 …… Swivel mechanism, 43 …… Roller table (position where grindstone is set),
48 …… Motor, 49 …… Cylinder in / out, 50 …… Guide bar, 51 …… Connector half.

Claims (1)

(57) [Scope of utility model registration request] 1. A plurality of wheel stockers for accommodating a set of grindstones are provided outside the grinder, and a first carrier movable along the row of wheel stockers is provided on the grinder side of the wheel stocker. A second carrier movable between the first carrier and the grinder is provided, and a grindstone set mounting table is provided on the grinder side and the first carrier side, respectively, with the center of rotation being interposed above the second carrier. A turntable capable of turning 180 °, which has a table on the side of the grinder and which coincides with a position for attaching / detaching the grindstone to / from the grinder when the second carrier is at the moving end position on the side of the grinder, is provided on the first carrier. A first transfer device capable of transferring the whetstone set between the first carrier and the selected wheel stocker is provided, and the whetstone set can be transferred to the first carrier or the second carrier between the two carriers. Grinding and grinding stone cover autochanger in surface grinding machine, characterized in that a transfer device.