TWI491466B - Centrifugal barrel grinding device - Google Patents

Description

Centrifugal barrel grinding device

The present invention relates to a centrifugal barrel grinding apparatus.

Conventionally, in the case of deburring, rounding, gloss grinding, etc., a centrifugal barrel grinding device is widely used, which is used to load an abrasive (workpiece) and a grinding medium or a compound such as a compound into a tank, and then The workpiece and the abrasive are flowed by the self-revolution of the tank to grind the workpiece. The centrifugal barrel polishing apparatus disclosed in Japanese Laid-Open Patent Publication No. 2003-205449, for example, is a rotating disk that is rotated in a vertical direction around a revolution axis, and is mounted in a rotatable manner. A plurality of barrels for grinding the workpiece.

In the above-described centrifugal barrel polishing apparatus, the loading and unloading operation of the tub is performed in a take-out portion in which the opening end surface of the centrifugal barrel polishing apparatus forms an opening. Here, after the completion of the polishing operation, the rotating disk is inertially rotated, and may sometimes stop at a position where the tub groove cannot be removed from the take-out portion. In this case, although the rotary disk can be manually rotated to fix the barrel in a predetermined position, the rotation of the rotary disk requires labor and increases the burden on the operator, and may cause the wrist. Etc. is drawn into the rotating mechanism. Moreover, after the one tank is taken out, when the fixing of the rotating disc is released in order to take out the next tank, there is a possibility that the weight of the rotating disc is unbalanced because the tub has been taken out, and the rotating disc is rotated to operate. The wrist or the like of the person is caught in the rotating mechanism. In terms of countermeasures, a motor with a speed reducer is considered as a drive motor for rotating the rotary disk at a high speed during barrel polishing. However, if a speed reducer is mounted on a motor for high-speed rotation, this configuration cannot be A torque sufficient to rotate the rotating disk that is unbalanced in weight is generated. Therefore, it is necessary to re-seat the barrel to be balanced after the weight is balanced, and the barrel can be exchanged efficiently.

Here, an object of the present invention is to realize a centrifugal barrel polishing apparatus that enables an operator to perform work safer and more efficiently.

In order to achieve the above object, a first aspect of the invention is a centrifugal barrel polishing apparatus including a pair of rotating disks that rotate around a revolution axis and are disposed on the rotating disk so as to be rotatable through a rotation axis, and are to be Grinding material together with the abrasive material is loaded into a plurality of barrels, and the rotating disc is rotated by a motor to rotate the barrel to revolve the object to be ground; it is attached to the front of the apparatus body And an opening and closing door for performing loading and unloading operation of the tub; and: a position detecting means for outputting a position detecting signal when the tank slot is at a position at which the opening and closing door can be operated; and a speed reducer a low speed motor that is switchable with the motor for the grinder to drive the rotating disc; after the grinding of the object is terminated, the driving of the rotating disc can be switched from the motor for the grinding machine to the low speed motor, and The position detecting signal outputted by the position detecting means advances the stop and stops at a position where the work can be performed from the opening and closing door.

According to a second aspect of the invention, the position detecting means includes: a position detecting member that is respectively attached to each of the barrel grooves on an outer peripheral portion of the rotating disk; and a proximity switch, wherein the barrel groove is at a position When the position of the operation is performed from the opening and closing door, the position detecting signal is outputted in opposition to each of the position detecting members.

According to the invention of the first aspect, the position detecting means is respectively provided at the outer peripheral portion of the rotary disk so as to correspond to each of the tubs, whereby the slot can be output when the position of the tub can be operated from the opening and closing door. The position detecting signal, therefore, after the polishing of the object to be polished is terminated, the driving of the rotating disk can be switched from the motor for the grinding machine to the low speed motor, and the pitch is advanced according to the position detecting signal outputted from the position detecting means, so that the pitch is advanced. The tank moves and stops at a position where it can be operated from the opening and closing door. This makes it possible to carry out safe and efficient work without the need for manual positioning work.

If the low-speed motor generates a large torque, even if the rotating disc has a weight imbalance, it is not necessary to re-seat the tank after the bucket is re-balanced as in the previous bucket grinding device, and then the rotation is performed. . Thereby, the work can be performed efficiently.

Further, since the low speed motor is provided with the speed reducer, even if the rotating disc has a weight imbalance, it is possible to perform safe work without worrying about the rotation of the rotary disc.

Further, the position detecting means uses the position detecting member and the proximity switch as in the second aspect of the invention, whereby the position signal can be output without a complicated mechanism.

According to a third aspect of the invention, in the centrifugal barrel polishing apparatus of the first aspect, the rotary disk fixing device for pressing the outer peripheral portion of the rotary disk to fix the rotary disk is provided.

According to the third aspect of the invention, the rotary disk fixing device is provided to press the outer peripheral portion of the rotary disk to fix the rotary disk. Therefore, it is possible to more reliably prevent the rotating disk from being unintentionally rotated, thereby enabling safer work.

According to a fourth aspect of the invention, in the centrifugal barrel polishing apparatus of the first or third aspect, the opening and closing door opening and closing device for restricting opening and closing of the opening and closing door is provided; when the rotating disk is not fixed, the opening is not allowed The opening and closing door opening and closing device is open to the opening and closing door.

According to the invention of the fourth aspect, when the rotary disk is not fixed, the opening and closing device of the opening and closing door is not allowed to open to the opening and closing door, and therefore, the opening and closing of the rotary disk cannot be opened or closed in the case of the possibility of rotation. The door is opened, so that it is possible to perform a safe work while the rotating disk is fixed.

According to a fifth aspect of the invention, in the centrifugal barrel polishing apparatus of the first aspect, the two revolving pulleys that are coaxial with the revolving shaft and disposed on both outer sides of the pair of rotating discs are The revolution pulley is formed as a self-rotating pulley that is coaxial with the respective rotation shafts and is disposed coaxially with the respective rotation shafts, and is disposed on the outer side of the pair of rotary disks, and two rotation belts respectively suspended from the two revolution pulleys and the rotation pulleys. The self-revolving rotation of the tub; the plurality of rotation pulleys adjacent to the rotation direction of the rotary disc and the group of one revolution pulley and one rotation belt form two groups.

According to a sixth aspect of the invention, in the centrifugal barrel polishing apparatus of the first or fifth aspect, the revolving pulley fixed coaxially with the revolving shaft is formed to have the same diameter as the revolving pulley and respectively The rotation shaft is fixed into a coaxial rotation pulley, and a rotation belt suspended from the revolution pulley and the rotation pulley, and the rotation of the barrel is performed; the rotation pulley is disposed on the outer side of one of the pair of rotary disks, and one piece is The rotation of the belt is suspended by the belt, and the inner circumferential surface is in contact with the rotation pulley, and the outer circumferential surface is in contact with the revolution pulley.

In the conventional tank grinding device, since the lengths of the rotation shafts are different, the bending of the rotation shaft or the looseness of the belt is caused, and the stable rotation may be hindered, however, according to the fifth aspect or the sixth aspect. According to the invention, since the length of the rotation shaft is uniform, the barrel can be stably rotated.

The present application is based on Japanese Patent Application No. 2010-211496, filed on Sep. 22, 2010, the content of which is hereby incorporated by reference.

Further, the present invention should be fully understood from the following detailed description. However, the detailed description and specific examples are intended to be illustrative of the preferred embodiments of the invention. Various changes and modifications can be made in accordance with the detailed description of the various embodiments.

The content of any of the embodiments proposed by the applicant is not intended to be used by the public, and the contents of the disclosure are replaced, replaced, and may not be included in the scope of the patent application. They are all part of the invention under the equator.

In the description of the specification or the scope of the patent application, the use of the noun and the same indicator, as long as it is not specifically stated, or is not explicitly denied according to the context, should be interpreted as including both singular and plural. . The use of any exemplification or exemplary language (such as "etc.") in this specification is only based on the ease of description of the invention, and particularly as long as it is not described in the scope of the patent application. It is not intended to limit the scope of the invention.

The centrifugal barrel grinding apparatus of the present invention will be described below. In Fig. 1, in order to show the internal structure, the state in which the sliding door 30 of the centrifugal barrel polishing apparatus 1 is opened is shown. Furthermore, the present invention is not limited to the following embodiments.

As shown in Fig. 1, the centrifugal barrel polishing apparatus 1 is a housing having a plurality of barrels (four barrels 11a to 11d in the present embodiment) having a sliding door 30 on the front side (the approach direction of the drawing). The inside of the 10 is fixed to the tank-carrying bodies 12a to 12d, respectively, and is configured to be revolvable in the vertical direction. Furthermore, the number of the tank and the tank carrier is not limited to four, and may be any number.

The tubs 11a to 11d are formed in the form of a cartridge into which an object to be polished (workpiece), a polishing medium, a compound, and the like can be incorporated.

The tank-carrying bodies 12a to 12d are arranged concentrically at equal intervals, and the concentric circles are positioned in a fixed-state horizontal revolving shaft 13 as one of the centers of rotation of the rotating disc (revolving disc) 14 The tank-carrying bodies 12a to 12d are supported by the rotation shafts 15a to 15d parallel to the revolution shaft 13 so as to be rotatable, and are configured to be rotatable relative to the rotary disk 14.

The centrifugal barrel polishing apparatus 1 includes a polishing machine motor 20 and a low speed motor 21 having a speed reducer as a drive mechanism for rotationally driving the rotary disk 14.

Here, the low speed motor 21 is a motor that is driven when the tubs 11a to 11d are attached or detached, and can be used as a driving range of the rotary disc 14 at a low speed which is lower than the speed at which the operator can be kept safe, for example, 533 mm/s or less. The speed is such that a motor capable of generating a sufficiently large torque is sufficient to rotate the rotary disk 14 even when the weight is unbalanced due to the loading and unloading of the tubs 11a to 11d.

As shown in FIG. 2, the grinder motor 20 and the low speed motor 21 are configured to be switchable by the clutch 22. A sprocket 22a is connected to the low speed motor by the chain 22b. When the clutch 22 and the sprocket 22a are separated from each other, the sprocket 22a is not connected to the rotation shaft 23a of the motor, and the rotation shaft 23a is driven by the output from the polishing motor 20. By rotating the clutch 22 to the sprocket 22a, the rotating shaft 23a can be connected to the low speed motor 21, and the driving of the rotating shaft 23a is switched from the driving of the grinding machine motor 20 to the driving by the low speed motor 21. .

The motor pulley 23 is fixed to the rotating shaft 23a of the motor, and the revolving belt 24 is hung on the outer circumference of the motor pulley 23 and the rotary disc 14, so that the rotary disc 14 can be centered on the revolving shaft 13. And rotate.

As shown in Fig. 3(A), in the revolution shaft 13, the small-diameter revolving pulleys 25a, 25b are fixed in a direction away from the two rotary disks 14 (outside of the rotary disk 14). Further, in the rotation shafts 15a to 15d, the rotation pulleys 26a to 26d having the same diameter and length as the revolution pulleys 25a and 25b are fixed to the rotation shafts 15a to 15d, respectively.

In the present embodiment, the rotation pulleys 26a and 26b and the revolution pulley 25a adjacent to the rotation direction of the rotary disk 14 are provided on the drive side (left side in the drawing) of the rotary disk 14, and the rotation pulleys 26c and 26d and the revolution pulley 25b. It is placed at the outer end of the opposite rotating disk 14 (right side in the figure). That is, the two independent drum pulleys and the one revolution pulley are formed in groups, and are disposed at the outer ends of the rotating disks 14 opposed to each other.

In addition, in FIG. 3, for the sake of simplicity, only the grinder motor 20 is shown as a drive mechanism for rotationally driving the rotary disk 14.

As shown in Fig. 3 (B), between the revolution pulleys 25a and 25b and the rotation pulleys 26a to 26d, the rotation belts 27a and 27b are suspended by the inner peripheral surface, and are rotated from the outer circumference of the belt 27a for rotation. The anti-loose pulley 28 is brought into contact with it to reduce the margin of the belt. Similarly, between the right-side revolution pulley 25b and the rotation pulleys 26c and 26d, the rotation belt 27b is hung.

When the rotation shafts 15a to 15d are rotated around the revolution shaft 13 by the rotation of the rotary disk 14, the rotation of the revolution shaft 13 is transmitted to the rotation shafts 15a to 15d by the rotation belts 27a and 27b, and the rotation shaft 15a is rotated. 15d rotation. Here, since the revolution pulleys 25a and 25b have the same diameter and length as the rotation pulleys 26a to 26d, the rotation shafts 15a to 15d are interlocked with the revolution shaft 13 (that is, the rotary disk 14) at the same rotational speed, and are oriented in the direction of revolution. The opposite direction rotates. Thereby, when the posture of the tank grooves 11a to 11d is maintained in the original position, the revolution shaft 13 can be rotated as a center.

In Fig. 4, the configuration of the spinning pulley of the conventional barrel grinding device is shown. As shown in Fig. 4, in the conventional tank grinding device, the revolution pulleys 25a and 25b and the rotation pulleys 26a to 26d of the present embodiment are collectively disposed on the driving side of the rotary disk 14, so that the length of the rotation shaft is caused. The difference (for example, the rotation shaft 15c is longer than the rotation shaft 15a) is a cause of bending deformation of the rotation shaft or a loose belt, and may hinder stable rotation.

According to the configuration of the present invention, the two adjacent rotating pulleys and the one rotating pulley are grouped and arranged in opposite directions, whereby the lengths of the rotating shafts 15a to 15d can be made uniform, and the rotating drum can be stably rotated. Slots 11a-11d.

As shown in FIG. 5, at the outer peripheral end of the rotary disk 14 adjacent to the tubs 11a to 11d, there are respectively provided a proximity switch 41 which is rotatable together with the rotary disk 14 and which is provided at the bottom of the centrifugal barrel grinding device 1. The detected position detecting members (in the present embodiment, the positioning blocks are used) 40a to 40d. The positioning blocks 40a to 40d are formed, for example, in a plate-like metal piece.

When the positioning blocks 40a to 40d are opposed to the proximity switch 41 and the proximity switch 41 is turned on, the position detection signal is transmitted to the control unit 51 (see Fig. 1).

Each of the positioning blocks 40a to 40d is provided such that when the proximity switch 41 is opposed to the proximity switch 41 and the proximity switch 41 is in the ON state, the tubs 11a to 11d are positioned at positions where the work can be performed from the sliding door 30. For example, as shown in FIG. 5, when the positioning block 40b is opposed to the proximity switch 41, the tub groove 11a is disposed on the front surface of the sliding door 30.

As shown, by the positioning blocks 40a-40d and the proximity switch 41, position detection can be performed every 1/4 turn (one pitch).

Further, a positioning block for detecting the rotation speed and a proximity switch for detecting the rotation speed may be further provided to transmit the rotation speed signal to the control unit 51. Thereby, the rotational speed of the rotary disk 14 can be more accurately grasped, so that the polishing conditions can be more accurately grasped and controlled.

Further, the positioning block and the proximity switch for detecting the rotation speed may be provided separately from the positioning blocks 40a to 40d and the proximity switch 41 in accordance with the response speed or the like, or may be shared with the positioning blocks 40a to 40d and the proximity switch 41.

As shown in FIGS. 1 and 6, a rotary disk fixing device 31 for pressing and fixing the rotary disk 14 is provided on the upper portion of the casing 10. The rotary disk fixing device 31 includes a lever portion 31a formed outside the casing 10, and a pressing portion 31b that presses the outer peripheral portion of the rotary disk 14 by the operation of the lever portion 31a; and transmits the operation of the lever portion 31a to the pressing portion. The shaft portion 31c of the portion 31b; the detection block 31d provided in the shaft portion 31c; the fixed detecting portion 31e for detecting the fixed state of the rotary disk 14, and the opening detecting portion 31f for detecting the open state of the rotary disk 14.

As shown in FIG. 6(A), after the rod portion 31a is pressed against the fixed side, the pressing portion 31b is pressed against the outer peripheral portion of the rotary disk 14 to be fixed so as not to be rotatable. At this time, the detection block 31d is in contact with the fixed detecting unit 31e, and a message indicating that the rotary disk 14 is in a fixed state (that is, a rotating disk fixed signal) is sent from the fixed detecting unit 31e to the control unit 51.

As shown in Fig. 6(B), when the lever portion 31a is turned to the open side, the pressing portion 31b releases the pressing of the outer peripheral portion of the rotary disk 14, and the rotary disk 14 is opened to be rotatable. At this time, the detection block 31d contacts the opening detecting unit 31f, and transmits a message that the rotating disk is in an open state (that is, a rotating disk opening signal) from the opening detecting unit 31f to the control unit 51.

As shown in FIG. 7, a sliding door opening and closing device 32 is provided adjacent to the sliding door 30 for controlling opening and closing of the sliding door 30. The sliding door opening and closing device 32 includes a locking portion 32a that can be locked to the hook portion 30a formed at the end portion of the sliding door 30, and a lock ring 32b for releasing the card of the locking portion 32a from the hook portion 30a. And an electronic lock 32c capable of interlocking the lock ring 32b by an instruction of the control unit 51.

The locking portion 32a is configured to be biased in a direction (upper side) that can be locked in the hook portion 30a, and is configured to be movable in the vertical direction. After the sliding door 30 is closed, the locking portion 32a is guided by the hook portion 30a, and is temporarily pulled downward downward. When the hook portion 30a passes through the locking portion 32a, it protrudes upward and locks the hook portion 30a to slide. Door 30 is not open. When the opening condition of the sliding door 30 to be described later is satisfied, after the lock ring 32b is pulled downward, the locking portion 32a is released from the hook portion 30a, and the sliding door 30 can be opened.

Here, in the related art, the electronic lock used in such interlocking is turned off during energization. However, in such a configuration, when the power is interrupted due to a sudden power failure or the like, the rotating disk 14 is being performed. It is also possible to open and close the sliding door 30 during inertial rotation. Here, in the electronic lock 32c of the present embodiment, the energization opening operation is performed to form a safer configuration.

As shown in FIG. 1, a control device 50 including a touch panel type control panel and a control button is provided on the front surface of the casing 10. The control device 50 is connected to the control unit 51, and can input a touch panel to perform setting while checking a command issued by the control unit 51 such as a polishing condition on the screen. For example, as shown in Figs. 8(A) and (B), the polishing time, the number of revolutions, and the like can be divided into 10 steps, and as shown in Fig. 8(C), up to 10 sets of mode settings can be recorded.

Further, by the control knob, the driving mode of the grinder motor 20 and the low speed motor 21 can be switched, and the pitch advance can be performed by the low speed motor 21 which will be described later.

The control unit 51 performs drive control of the grinder motor 20 based on the polishing conditions set by the control device 50. Here, when the rotational speed is measured by the positioning block for the rotational speed detection and the proximity switch, the feedback control of the motor 20 for the grinder can be performed based on the rotational speed signal output from the proximity switch. Further, the control unit 51 is electrically connected to the rotary disk fixing device 31, the sliding door opening and closing device 32, and the proximity switch 41, and performs position control and sliding of the rotary disk 14 as shown below based on the signals output therefrom. Opening and closing control of the door 30.

The grinding operation step performed by the centrifugal barrel polishing apparatus 1 will be described below.

In the polishing step, the tanks 11a to 11d in which the workpiece, the polishing medium, or the compound are mounted are fixed to the tank carriers 12a to 12d, respectively, and the rotation of the grinder motor 20 is performed in accordance with an instruction from the control unit 51. By driving, the rotary disk 14 is rotated, whereby the workpiece can be polished under predetermined polishing conditions.

After the end of the grinding step, the supply of electric power to the motor 20 for the grinder is stopped, and the rotary disk 14 is inertly rotated. Since the inert rotation continues for about 20 seconds, the control unit 51 controls that the electronic lock 32c cannot be released until the rotational speed of the rotary disk 14 falls to a safe rotational speed (for example, within 30 seconds after the end of the polishing step). Interlocking of the locking ring 32b.

Next, after confirming that the rotary disk 14 has stopped or dropped below a predetermined number of revolutions, the drive of the rotary disk 14 is switched by the grinder motor 20 to the low speed motor 21 by the operation knob of the control device 50.

Whether or not the rotating disk 14 is below a predetermined number of revolutions can be determined by whether the rotational speed signal of the proximity switch for the rotational speed or the output value of the position detecting signal of the proximity switch 41 for position detection is within a predetermined time.

Then, the distance between the rotary disks 14 is advanced by the operation knob of the control device 50. After the rotating disk 14 is rotated by the low speed motor 21, one of the positioning blocks 40a to 40d is detected by the proximity switch 41, and the position detecting signal is output from the proximity switch 41 to the control unit 51, and is controlled by the control unit 51. The low speed motor 21 is stopped by a speed reducer. Thereby, the required tub (for example, the tub 11a) is disposed on the front surface of the sliding door 30. In view of the above, there is no need for manual positioning work in the past, and work can be performed safely and efficiently.

The rotary disk fixing device 31 is then operated to fix the rotary disk 14. Since the low speed motor 21 is provided with a speed reducer, even if the rotating disk 14 is not fixed, rotation does not occur. However, by using the rotating disk fixing device 31, it is possible to more reliably prevent the rotating disk 14 from being unintentionally rotated. More attention to safety.

After the rotating disk 14 is fixed, the rotating disk fixing signal is output from the rotating disk fixing device 31 toward the control portion 51. The control unit 51 releases the interlock of the sliding door opening and closing device 32 after the input of the rotating disk fixing signal. Since the control unit 51 does not allow the sliding door opening and closing device 32 to open to the sliding door 30 when the rotary disk 14 is in an inertial rotation state or an unfixed state (a state in which the rotary disk opening signal is input), the rotary disk 14 is not provided. When the rotation is in progress or there is a possibility of rotation, the sliding door 30 cannot be opened, and therefore, the safe operation can be performed while the rotary disk 14 is in a fixed state.

Then, the lock ring 32b is operated to release the locking of the hook portion 30a by the locking portion 32a to open the sliding door 30, take out the tub groove 11a for an exchange operation or the like.

Then, the fixing of the rotating disk fixing device 31 to the rotating disk 14 is released, and the operation of the rotating device 14 is performed by the operation button of the control device 50, so that other tubs (for example, the tub 11b) come. The positive way to make the pitch forward. After the tub groove 11b comes to the front side by the advancement of the pitch, the rotary disk 14 is fixed by the rotary disk fixing device 31, and an exchange operation or the like can be performed. As for the other tanks, it is the same.

Since the low speed motor 21 is provided with the speed reducer, even if the rotation of the rotary disk 14 by the rotary disk fixing device 31 is released, the rotation can be prevented and the safe operation can be maintained. Further, since the low speed motor 21 has a large torque, even if the weight of the rotary disk 14 is unbalanced by the removal of the tub groove 11a, it is not necessary to first mount the tub groove 11a to be weight balanced as in the conventional centrifugal barrel grinder. Only by performing the steps of rotating it, the pitch can be self-advancing. Thereby, the work can be performed efficiently.

Here, since the pitch of the tubs 11a to 11d is advanced in a state where the sliding door 30 is opened, it is preferable to provide a light curtain in the opening of the sliding door 30 in order to prevent the operator from being caught. ).

As described above, with the centrifugal barrel polishing apparatus 1 of the present invention, the operator can perform a safer and more efficient operation.

Furthermore, the centrifugal barrel grinding device of the present invention may be any one of a dry centrifugal barrel grinding device and a wet centrifugal barrel polishing device.

(Effect of the embodiment)

(1) The centrifugal barrel polishing apparatus 1 according to the present invention is provided with positioning blocks 40a to 40d and a proximity switch 41 respectively in the outer peripheral portion of the rotary disk 14 so as to correspond to the respective barrel grooves 11a to 11d. When the grooves 11a to 11d are positioned to be operated from the sliding door 30, the position detecting signal can be outputted to the control unit 51. Therefore, after the polishing of the object to be polished is completed, the driving of the rotating disk 14 can be driven from the motor for the grinding machine. The switch 20 is switched to the low speed motor 21, and the pitch can be advanced based on the position detection signal output from the proximity switch 41 to move and stop the tubs 11a to 11d at positions where the work can be performed from the sliding door 30. This makes it possible to carry out safe and efficient work without the need for manual positioning work.

Since the low speed motor 21 can generate a large torque, even if the weight of the rotary disk 14 is unbalanced, it is not necessary to perform the steps of rotating the barrel groove until the weight is balanced, as in the conventional centrifugal barrel polishing device. The path advances from the pitch. This enables efficient work.

Further, since the low speed motor 21 is provided with the speed reducer, even if the weight of the rotary disk 14 is unbalanced, it is possible to maintain a safe state regardless of the possibility of rotation of the rotary disk 14.

(2) By the use of the rotary disk fixing device 31, it is possible to more reliably prevent the rotating disk 14 from being unintentionally rotated, and to maintain a safe state.

(3) Since the control unit 51 assumes the inertial rotation state or the unfixed state (the state in which the rotary disk opening signal is input) when the rotary disk 14 is present, the sliding door opening and closing device 32 is not allowed to open to the sliding door 30, and therefore, the rotary disk is When the rotation of the 14 is likely to be possible, the sliding door 30 cannot be opened, so that the rotating disk 14 can be safely operated while being fixed.

(Other embodiments)

As shown in Fig. 9, the rotation pulleys 26a to 26d are disposed on one side, and the inner circumferential surface of the rotation belt 27 is brought into contact with the rotation pulleys 26a to 26d, and the outer circumferential surface of the rotation belt 27 is brought into contact with the revolution pulley 25. By suspending the belt 27 for rotation as described above, all of the rotation shafts 15a to 15d can be rotated in conjunction with the rotation of the rotary disk 14 by the one belt 27 for rotation. Thereby, the lengths of the rotation shafts 15a to 15d can be made uniform, and the barrel grooves 11a to 11d can be stably rotated.

In the present embodiment, the positioning blocks 40a to 40d and the proximity switch 41 are used as the position detecting means, but the present invention is not limited thereto. For example, a non-contact type position detecting means using a laser or the like may be employed, or a measuring means for detecting the position may be brought into contact with the outer circumference of the rotary disk 14 for a detection position, that is, a contact type position detecting means. In the case of the contact type position detecting means, the configuration may be such that a slit or a step is formed on the outer circumference of the rotary disk 14 so as to correspond to the positions of the tubs 11a to 11d as a position detecting member. The slit or step is detected by a contact member that is in contact with the outer circumference of the rotary disk 14 for detecting the positions of the tubs 11a to 11d. Here, the contact surface of the measuring member with respect to the rotary disk 14 is preferably a cylindrical surface having the rotation axis of the rotary disk 14 as a center. Therefore, when the rotary disk 14 is not in the shape of a disk, it can be set as needed. There are members (circular plates, etc.) for forming a cylindrical surface.

1. . . Centrifugal barrel grinding device

10. . . Casing

11a~11d. . . Bucket

12a~12d. . . Bucket carrier

13. . . Rotary shaft

14. . . Rotating disk

15a~15d. . . Spin axis

20. . . Grinder motor

twenty one. . . Low speed motor

twenty two. . . clutch

22a. . . Sprocket

22b. . . Chain

twenty three. . . Motor pulley

23a. . . Rotary axis

twenty four. . . Revolving belt

25a, 25b. . . Revolution pulley

26a~26d. . . Rotation pulley

27a, 27b. . . Rotating belt

28. . . Anti-loose pulley

30. . . Sliding door

30a. . . Hook

31. . . Rotary disk fixture

31a. . . Rod

31b. . . Pressing part

31c. . . Shaft

31d. . . Detection block

31e. . . Fixed detection department

31f. . . Open detection department

32. . . Sliding door opening and closing device

32a. . . Clamping part

32b. . . Lock ring

32c. . . Electronic locks

40a~40. . . Positioning block

41. . . Proximity switch

50. . . Control device

51‧‧‧Control Department

Fig. 1 is a structural explanatory view of a centrifugal barrel grinding apparatus of the present invention. Fig. 1(A) is a front view, and Fig. 1(B) is a right side perspective view.

2 is a schematic view showing the construction of a grinding motor and a low speed motor.

Fig. 3 is an explanatory view showing a self-revolving mechanism of a tub in the centrifugal barrel grinding device of the present invention. Fig. 3(A) is a front view, and Fig. 3(B) is a left side perspective view.

Fig. 4 is an explanatory view showing a self-revolving mechanism of a tub in a conventional centrifugal barrel grinding device. Fig. 4(A) is a front view, and Fig. 4(B) is a left side perspective view.

FIG. 5 is a schematic structural view of a positioning block and a proximity switch used in detecting the position of the tub.

Fig. 6 is a structural explanatory view of a rotating disk fixing device. Fig. 6(A) shows a state in which the rotary disk is fixed, and Fig. 6(B) shows a state in which the rotary disk is opened.

Fig. 7 is a structural explanatory view of a sliding door opening and closing device.

Fig. 8 is an explanatory diagram showing an example of setting a polishing condition of a touch panel of the control device.

Fig. 9 is an explanatory view showing a modification of the self-revolving mechanism of the tub of the centrifugal barrel polishing apparatus of the present invention (the same left side perspective view as that of Figs. 3(A) and 4(A)).

10. . . Casing

11a~11d. . . Bucket

14. . . Rotating disk

twenty three. . . Motor pulley

twenty four. . . Revolving belt

40a~40d. . . Positioning block

41. . . Proximity switch

Claims (4)

A centrifugal barrel grinding device comprising a pair of rotating disks rotating around a revolution axis and a plurality of barrels mounted on the rotating disk so as to be rotated by the rotating shaft and loaded together with the abrasive The groove is rotated by the motor of the grinder to rotate the drum to revolve the workpiece to grind the object to be polished; and the front surface of the device body is formed to be used for loading and unloading the tank Opening and closing the door; and having: a position detecting means for outputting a position detecting signal when the tank slot is at a position at which the opening and closing door can be operated; and a low speed motor with a speed reducer, which can be coupled to the motor for the grinding machine Switching to drive the rotating disk; detecting a positioning block and a proximity switch of the rotating disk; rotating disk fixing device for pressing the outer peripheral portion of the rotating disk to fix the rotating disk; and opening and closing the opening and closing device for restricting opening and closing of the opening and closing door; After the polishing of the object to be polished is terminated, the driving of the rotating disk can be switched from the motor for the grinding machine to the low speed motor, and outputted according to the position detecting means. The position detecting signal moves the stop and stops at a position where the work can be performed from the opening and closing door. The position detecting means includes: a position detecting member that is respectively attached to the outer peripheral portion of the rotating disk. In each tank; and a proximity switch that, when the slot is in a position to be operated from the opening and closing door, is opposite to each of the position detecting members and outputs a position detecting signal; when the rotating disk is not fixed, the opening and closing is not allowed The door opening and closing device is open to the opening and closing door. A centrifugal barrel grinding device comprising a pair of rotating disks rotating around a revolution axis and a plurality of barrels mounted on the rotating disk so as to be rotated by the rotating shaft and loaded together with the abrasive The groove is rotated by the motor of the grinder to rotate the drum to revolve the workpiece to grind the object to be polished; and the front surface of the device body is formed to be used for loading and unloading the tank Opening and closing the door; and having: a position detecting means for outputting a position detecting signal when the tank slot is at a position at which the opening and closing door can be operated; and a low speed motor with a speed reducer, which can be coupled to the motor for the grinding machine Switching to drive the rotating disk; rotating disk fixing device for pressing the outer peripheral portion of the rotating disk to fix the rotating disk; and opening and closing the opening and closing device for restricting opening and closing of the opening and closing door; The driving of the rotating disk is switched from the motor for the grinding machine to the low speed motor, and the barrel is moved and stopped according to the position detecting signal output from the position detecting means. The closing door for the operations of the forward pitch position; the position detecting means, comprising: The position detecting members are respectively mounted on the outer peripheral portion of the rotating disk so as to correspond to the respective barrel grooves; and the proximity switch, and when the barrel groove is located at a position from which the opening and closing door can be operated, the position detection is performed The position detecting signal is outputted by the member; the position detecting member detects the rotation speed of the rotating disk; and when the rotating disk is not fixed, the opening and closing device of the opening and closing device is not allowed to open to the opening and closing door. The centrifugal barrel polishing apparatus according to claim 1 or 2, wherein the two revolving pulleys which are coaxially fixed to the revolving shaft and disposed on both outer sides of the pair of rotating discs are formed in the same manner as the revolving pulley The rotation pulleys which are respectively coaxial with the respective rotation shafts and disposed on the outer side of the pair of rotary disks, and the two rotation belts respectively hung on the two revolution pulleys and the rotation pulleys, perform the self-revolution of the tanks And forming a plurality of groups of the plurality of rotation pulleys adjacent to the rotation direction of the rotary disk and the group of one revolution pulley and one rotation belt. The centrifugal barrel grinding device according to claim 1 or 2, wherein the revolving pulley is fixed coaxially with the revolving shaft, and the revolving pulley is formed coaxially with the revolving pulley and is fixed coaxially with the respective rotating shaft, And suspending the belt for the rotation of the revolution pulley and the rotation pulley, and performing the self-revolving of the barrel; the rotation pulley is disposed outside one of the pair of rotating disks, and suspending one rotation belt with the belt The circumferential surface is in contact with the rotation pulley, and the outer circumferential surface is in contact with the revolution pulley.