JP2002036034A - Automatic ball integrating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To quickly and automatically house balls in line and without superposition in a housing groove between an inner ring workpiece and an outer ring workpiece. SOLUTION: An automatic ball integrating device comprises a ball storing part A where a plurality of balls 4 are stored, a ball separating part B for ejecting the balls 4 one by one from the ball storing part A, a ball guide part C for guiding the balls 4 ejected by the ball separating part B toward a housing groove 5, a work holding part E for rotating an inner ring workpiece 2 and an outer ring workpiece 1 to revolve the housing groove 5 so that the housing groove 5 receives the balls 4 from the ball guide part C, and a rotating part F for rotating the inner ring workpiece 2 so that a ball 4 superposed in the housing groove 5 falls into the housing groove 5 to form a line. The plurality of balls 4 are integrated in line into the housing groove 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ball automatic assembling apparatus for automatically incorporating a ball into a work having a storage groove for accommodating a large number of balls, such as a revolver of a microscope.

[0002]

2. Description of the Related Art FIG. 4 shows a conventional automatic ball assembling apparatus described in Japanese Patent Application Laid-Open No. Hei 10-230422. This device incorporates a plurality of balls 102 into a donut-shaped ball fitting groove 101A formed in a governor ball case 101 as a work.
04, holding jig 103, and ball supply block 105
And

[0003] An assembling jig 104 is fitted with the central hole of the governor ball case 101 penetrating vertically.
By this fitting, the opening of the ball fitting groove 101A of the governor ball case 101 in the inner diameter direction is closed, and the ball 102 is fitted in the circumferential direction. The holding jig 103 is intermittently rotatable, and holds the governor ball case 101 in a horizontal posture. The ball supply block 105 is supported on the holding jig 103 in a state of being fitted to the assembling jig 104, and holds the ball 102 in the governor ball case 1.
01 inclined supply path 10 for guiding the ball insertion groove 101A
5A and the vertical supply path 10 communicating with the inclined supply path 105A
5B.

The inclined supply path 1 of the ball supply block 105
05A is connected to the lower end of a vertical supply path 107 that guides the ball 102 that is separated from a ball storage unit (not shown) and moves downward by gravity. A vertical hole 108 communicates with the vertical supply path 105B, and a ball pusher 109 for elastically forcibly pushing the ball 102 in the vertical supply path 105B is inserted into the vertical hole 108 so as to be vertically movable. ing. Note that the ball pusher 109 is a spring 1
It is urged downward by 10.

In the above structure, the ball 102 enters the ball insertion groove 101A from the vertical supply path 107 through the inclined supply path 105A and the vertical supply path 105B of the ball supply block 105, and enters the ball insertion groove 101 by the ball pushing tool 109. It is pushed into the back of 101A. After the pushing of one ball 102 is completed, the holding jig 103 is rotated by one ball, whereby the governor ball case 101 is rotated integrally, and the next ball 102 is rotated.
Is pressed.

[0006]

However, in the conventional ball assembling apparatus, after pushing in one ball, the ball is sequentially pushed in by rotating the work (the governor ball case 101) by one ball. Therefore, when assembling more than one hundred balls like a revolver of a microscope, it takes a long time, and there is a problem that productivity is not improved even if it is automated. Further, the operation and structure are complicated, and the control is complicated.

In such a conventional apparatus, when the pushing-in operation of the ball is eliminated, the productivity is improved, but the collision and the rolling movement of the balls cause the ball fitting groove portion 1 to move.
It becomes difficult to supply the ball without overlapping with 01A. When the balls overlap, it becomes difficult to automate the grease application work in the subsequent process and the assembling work of the parts corresponding to the lids of the ball fitting grooves. Since the surface is damaged, the feeling when the work is rotated may be deteriorated.

The present invention has been made in consideration of such conventional problems, and does not require a complicated structure or jig, and does not require balls to overlap, so that the balls are automatically arranged in a line. It is an object of the present invention to provide a ball automatic assembling device that can be incorporated into a ball.

[0009]

SUMMARY OF THE INVENTION In order to achieve the above object, an invention according to claim 1 is a ball automatic assembling apparatus which incorporates a plurality of balls in a row in a storage groove formed by an inner ring work and an outer ring work. A ball accommodating section accommodating a plurality of balls, a ball separating section for taking out the balls one by one from the ball accommodating section, a ball guiding section for guiding the ball taken out by the ball separating section toward the accommodating groove,
In order for the storage groove to receive the ball from the ball guide, the work holding portion that rotates the inner groove work and the outer ring work to rotate the storage groove, and the ball overlapped by the storage groove is dropped into the storage groove to be aligned, And a rotating unit for rotating the inner ring work.

According to the present invention, the ball separating section guides the balls taken out one by one into the storage grooves. The work holding part rotates the storage groove by rotating the inner ring work and the outer ring work to displace the storage groove with respect to the ball, so that the ball can sequentially fall into the storage groove. In this case, the balls supplied to the storage grooves overlap in a plurality of rows due to collision and rolling movement between the balls. The rotating part rotates the inner ring work,
The ball acts so as to follow with the inner ring work. The distance between the balls is repeatedly increased or decreased by the co-rotation, and the balls are dropped into the storage grooves and can be stored in a line by this repetition. As described above, there is no need to intermittently rotate the work for each ball, and the balls can be stored in the storage grooves at a high speed with a simple structure.

According to a second aspect of the present invention, in the first aspect, the work holding portion includes a floating pin for lifting the inner ring work from the outer ring work.

According to the present invention, since the inner race work floats from the outer race work, the ball can easily enter the storage groove, and the ball can be smoothly dropped into the storage groove.

According to a third aspect of the present invention, in the first or second aspect, the ball storage section, the ball separation section, the ball guide section, and the rotating section are integrally formed according to the position of the storage groove. It is characterized by further comprising an actuator section for moving.

According to the present invention, the ball accommodating section, the ball separating section, the ball guide section and the rotating section are moved in accordance with the position of the accommodating groove. It can be a certain device.

[0015]

1 to 3 show an embodiment of the present invention. FIG. 1 shows the whole of the embodiment, and FIG. 2 shows a main part at the time of operation. This embodiment is applied to a case where a ball (steel ball) is incorporated in a revolver of a microscope.

The revolver of the microscope is as shown in FIG.
A circular storage groove including a turret 1 corresponding to an outer race work, and a support member 2 corresponding to an inner race work and rotatably supporting the turret 1, and accommodating a plurality of balls 4 between the turret 1 and the support member 2; 5 are formed. The storage groove 5 is closed by the press ring 3 after the storage of the ball 4. One surface of the ball 4 stored in the storage groove 5 is held by the turret 1, two surfaces are held by the support member 2, and the remaining one surface is
Is held by

The revolver is mounted on a mounting surface 2a of the support member 2.
Is attached to the microscope body, and an objective lens (not shown) is attached to a plurality of mounting screw portions 1b formed on the turret 1.
Are respectively mounted. Then, by rotating the turret 1, the observation is performed by switching the objective lens.

As shown in FIG. 1, the automatic ball assembling apparatus of this embodiment has a ball accommodating section A, a ball separating section B, a ball guiding section C, an actuator section D, a work holding section E, And a rotating unit F.

The ball accommodating section A has a hopper 8 fixed on a movable base plate 17. The inside of the hopper 8 is a ball accommodation space 6 for accommodating many balls 4. The lower portion of the ball housing space 6 is a tapered surface 6a that is inclined downward from the periphery toward the center, and a supply path 7 is vertically connected to a central portion of the tapered surface 6a. The diameter of the supply path 7 is set such that the balls 4 fall in one vertical line.

The ball separating portion B is provided on a fixed portion 10 fixed on a movable base plate 17 so as to extend in the direction of the hopper 8.
b, and a linear guide 10 composed of a movable portion 10a that moves along the length direction of the fixed portion 10b, and a passage hole 9a through which only one ball 4 passes, and an arm 9 attached to the movable portion 10a. And The arm 9 has a cam 11 attached to a shaft of a motor 12 by a spring 13.
The arm 9 reciprocates linearly with the rotation of the motor 12. By this reciprocating movement, one of the balls 4 in the supply path 7 passes through the passage hole 9a of the arm 9, and one ball 4 can be taken out.

The ball guide section C guides the ball 4 taken out by the ball separating section B toward the storage groove 5, and has a guide cylinder 16 that hangs down from the moving base plate 17. The inside of the guide cylinder 16 is a guide path 15 through which the ball 4 passes.

The work holding section E is for rotating the support member 2 as an inner ring work and the turret 1 as an outer ring work in order to supply the ball 4 from the ball guide section C to the storage groove 5. The work holding portion E includes a work jig 21 that supports the support member 2 and the turret 1 in an assembled state, and a jig base 24 that supports the work jig 21 so as to be vertically movable.

The work holding section E is provided with a jig rotating plate 22 which is supported by a shaft of a motor 23 and is rotated by driving the motor 23. The jig rotating plate 22 is vertically moved by a vertically moving cylinder 25. Therefore, at the time of lifting by the vertical movement cylinder 25, the jig rotating plate 22 lifts the work including the support member 2 and the turret 1 together with the work jig 21, and the motor 23 drives the whole work to rotate.

Further, on the jig rotating plate 22, a floating pin 26 which vertically penetrates the work jig 21 is provided upright. The floating pin 26 moves up and down while being retained by the work jig 21 by the retaining ring 26a. The floating pin 26 penetrates the mounting screw portion 1 b of the turret 1 and is in contact with the support member 2 in the turret 1. Accordingly, when the jig rotating plate 22 is raised, the floating pins 26 are attached to the support member 2.
Is raised from the turret 1 to secure a space for the ball 4 to enter the ball rolling surface of the storage groove 5. As a result, the ball 4 can smoothly fall into the storage groove 5.

The rotating part F is for rotating the support member 2 which is an inner ring work in order to surely drop the balls 4 which have been overlapped into the storage grooves 5. The rotating unit F includes an air slide table 29 and a rotation motor 28 attached to the air slide table 29.

The air slide table 29 is a table in which a cylinder and a guide are integrated, and is attached to the moving base plate 17. The rotation motor 28 is attached to a table 29a of the air slide table 29. A rotation arm 27 is attached to a shaft of the rotation motor 28. Therefore, the rotation motor 28
The rotary arm 27 is moved up and down by driving the air slide table 29. Further, a rotation pin 30 with which the rotation arm 27 is in contact is set on the support member 2. The rotating pin 30 is inserted into a pin hole 2b formed in the support member 2, and in this inserted state, the rotating arm 2
The support member 2 is rotated via the rotation pin 30 by the contact of the support member 7.

The actuator section D is for moving the ball storage section A, the ball separation section B, the ball guide section C and the rotating section F in accordance with the position of the storage groove 5, and includes an actuator 18 therefor. I have. The actuator 18 is a fixed part 1 extending in a direction where the ball receiving part A, the ball separating part B, the ball guiding part C and the rotating part F are located.
8a and a movable portion 18b that moves along the length direction of the fixed portion 18a. The movable portion 18b is moved by driving the moving motor 20.

The movable base plate 17 described above is fixed to the movable portion 18b. As described above, the ball receiving section A, the ball separating section B, the ball guiding section C, and the rotating section F are attached to the moving base plate 17. Therefore, the ball accommodating portion A, the ball separating portion B, the ball guiding portion C, and the rotating portion F move integrally by driving the moving portion 18b by driving the moving motor 20. By this movement, these members can be adjusted to the position of the storage groove 5. For this reason, the versatility can be applied to revolvers having different sizes.

Next, the operation of assembling the ball 4 into the storage groove 5 formed by the turret 1 and the support member 2 with the above configuration will be described.

The arm 9 of the ball separating section B reciprocates between the supply path 7 of the hopper 8 and the guide path 15 of the guide cylinder 16 following the cam 11 by the rotation of the motor 12. During each reciprocating movement, one ball 4 passes through the passage hole 9 a of the arm 9 and enters the guide path 15 of the guide cylinder 16. Guide tube 1
6 is a turret 1 by an actuator 18 in advance.
Since the ball 4 has moved onto the storage groove 5 formed by the support member 2, the ball 4 falls from the guide cylinder 16 into the storage groove 5 by its own weight.

On the other hand, the turret 1 and the supporting member 2 are set on a work jig 21, and the work jig 21 is lifted by a jig rotating plate 22 when the vertical movement cylinder 25 is raised, and is moved from the jig base 24. The ball 23 rises and rotates in accordance with the supply speed of the ball 4 by driving of the motor 23. At this time, the floating pin 26 is pushed up by the raised jig rotating plate 22 to lift the support member 2 from the turret 1. This secures a space where the ball 4 enters the ball rolling surface of the storage groove 5.

As a result, the predetermined number of balls 4 are sequentially loaded into the storage grooves 5 formed by the turret 1 and the support member 2. Since the number of balls 4 to be loaded is one or two less than the maximum number that can be loaded in the storage groove 5, when the balls 4 are loaded in close contact, they are arranged in a line in the storage groove 5. Due to the collision or the rolling movement, about 1/5 of the ball 4 overlaps the ball 4 in the first row. After the loading of the ball 4 is completed, the vertically moving cylinder 25 is lowered, and the work jig 21 is returned to the jig base 24.

Next, the actuator 18 moves and moves as shown in FIG.
As shown in (1), the rotation center of the rotation motor 28 and the rotation center of the work are matched. After that, air slide table 2
9 moves to the lower end, and the rotation motor 28
Is driven, the rotating arm 27 abuts on the rotating pin 30 set on the supporting member 2 to rotate the supporting member 2.

As a result, the ball 4 rotates together with the support member 2, and the moving speed of the ball 4 varies due to variations in groove width and variations in surface accuracy of the rolling surface. For this reason, while the gap between the balls 4 repeats increasing and decreasing, the overlapping balls 4 sink one after another between the balls. For this reason, all the balls 4 are aligned without overlapping while rotating the support member 2 about five times. This makes it possible to automate the application of grease to the ball 4 and the tightening of the screw of the holding ring 3 in a later step.

As described above, it is possible to assemble a number of balls in a row without overlapping by a predetermined number at the ball rolling position of the storage groove 5 formed by the turret 1 and the support member 2.

In this embodiment, the ball 4 is incorporated in the revolver of the microscope, but the ball can be incorporated in components other than the revolver.

[0037]

According to the first aspect of the present invention, since the inner groove work and the outer ring work are rotated to rotate the storage grooves, the balls can be sequentially dropped into the storage grooves, and the balls are superposed. In addition, since the inner ring work is rotated so that the ball rotates with the inner ring work, the balls fall into the storage grooves and can be stored in a row.
Therefore, there is no need to intermittently rotate the work for each ball, and the balls can be stored in the storage grooves at a high speed with a simple structure.

According to the second aspect of the present invention, in addition to having the same effect as the first aspect of the present invention, the ball can easily enter the storage groove, and the ball can be smoothly dropped into the storage groove.

According to the invention of claim 3, according to claim 1 or 2,
In addition to being able to work in a manner similar to the described invention,
Since the ball can be incorporated according to the size of the work, a versatile device can be obtained.

[Brief description of the drawings]

FIG. 1 is an overall side view of an embodiment of the present invention.

FIG. 2 is a partial side view showing an operation of aligning balls in a line.

FIG. 3 is a sectional view showing a revolver of the microscope.

FIG. 4 is a sectional view showing a conventional ball assembling device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Turret 2 Support member 4 Ball 5 Storage groove A Ball storage part B Ball separation part C Ball guide part D Actuator part E Work holding part F Rotating part

Claims (3)

[Claims] 1. A ball automatic assembling device that incorporates a plurality of balls in a row into a storage groove formed by an inner race work and an outer race work, comprising: a ball accommodating portion accommodating a plurality of balls; A ball separating unit for taking out the balls one by one, a ball guiding unit for guiding the ball taken out by the ball separating unit toward the storage groove, and a receiving groove for receiving the ball from the ball guiding unit. A ball, comprising: a work holding portion that rotates to rotate a storage groove; and a rotation portion that rotates an inner ring work in order to drop balls overlapped in the storage groove into the storage groove to be aligned. Automatic assembly device. 2. The automatic ball assembling device according to claim 1, wherein the work holding portion includes a floating pin for lifting the inner race work from the outer race work. 3. The apparatus according to claim 1, further comprising an actuator section for integrally moving the ball storage section, the ball separation section, the ball guide section, and the rotation section in accordance with the position of the storage groove. Or the ball automatic assembling device according to 2.