JPH0649936U - Work posture controller - Google Patents

Abstract

(57) [Abstract] [Purpose] In addition to saving space and equipment, simplify the processing of measurement data and the feedback to the preceding and following lines, and make it less susceptible to environmental changes such as temperature changes. . [Structure] The rotary table 32 is provided with a rotating member 42 that holds the work 14 and is rotatable in the horizontal direction. Therefore, the work 14 can be fixed to the desired rotation position by the rotary table 32. The work reversing means is provided with a pair of clamping means 72, which are movable toward and away from each other and rotatable in the vertical direction, on opposite end sides of the rotary table 32. Therefore, the work reversing means 34 includes the work 14 mounted on the rotary table 32 by the pair of clamping means 72.
And the work 14 is rotated in the vertical direction, and the work 14 is inverted on the rotary table 32. This makes it possible to eliminate the second measurement station or attitude control station that was conventionally required.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a work posture control device, and more particularly to a work posture control device for controlling the posture of a workpiece when measuring dimensions such as an inner diameter of a hole formed in the workpiece and an outer diameter of a shaft with an in-line measuring machine. .

[0002]

[Prior art]

 The in-line measuring machine 10 is shown in FIG. 3, and the detector 12 of the in-line measuring machine 10 moves along the X-axis guide 13A, the Y-axis guide 13B, and the Z-axis guide 13C. As a result, the detector 12 moves in the three axis directions of the X, Y, and Z axes. The following two methods are generally known as methods for measuring the hexahedral work 14 by the in-line measuring machine 10.

In the first measuring method, first, the work (cylinder block) 14 is conveyed to the first measuring station via the carry-in line 16 and clamped while being positioned on the rotary table 18. Next, the rotary table 18 is rotated in the horizontal direction so that the holes and the like formed on the vertical surface of the work 14 are arranged in parallel to the axial direction (Y-axis direction) of the detector 12. Next, the detector 12 is moved in the X-, Y-, and Z-axis directions and inserted into a hole or the like formed on the vertical surface of the work 14, and the shape of the hole or the like is measured.

After the measurement at the first measuring station is completed, the work 14 is conveyed to the second measuring station via the carry-out line 20. Here, the workpiece 14 has a rotary table (not shown) of the second measuring station so that the horizontal plane (unmeasured surface) when positioned on the rotary table 18 of the first measuring station becomes a vertical plane. ) Is clamped to.

After the clamp is completed, the holes and the like formed on the unmeasured surface of the work 14 are measured as in the first measuring station. As a result, the shapes of holes and the like formed on the six surfaces of the work 14 are measured by the first measuring method. On the other hand, in the second measuring method, after the measurement at the first measuring station is completed, the work 14 is conveyed to the posture control station and the posture is controlled so that the unmeasured surface of the work 14 becomes a vertical surface. Set it in a tool (not shown). Then, while being set on the jig, it is conveyed again to the first measuring station and the holes and the like formed on the unmeasured surface are measured.

[0006]

[Problems to be solved by the device]

 However, since the first measurement method requires the first and second measurement stations, there is a problem that a large space is required and the equipment becomes complicated. Moreover, since the workpieces are measured at the first and second measuring stations, the measuring time is different. Therefore, there is a problem in that the processing of the measurement data of the entire work becomes complicated, the feedback to the front and rear lines becomes complicated, and the environment is easily affected by temperature changes.

On the other hand, the second measuring method also requires two stations (the first measuring station and the posture control station), and therefore has the same problem as the first measuring method. The present invention has been made in view of such circumstances, and in addition to achieving space saving and equipment saving, simplification of processing of measurement data of the entire work and feedback to front and rear lines, and further temperature change. The object is to provide a work posture control device that is not easily affected by the environment such as.

[0008]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention comprises a rotating member which holds an object to be measured and can be horizontally rotated, and the object to be measured is held on the rotating member and the rotating member is horizontally arranged. The rotary table, which rotates to fix the object to be measured at a desired rotation position, can move toward and away from each other on opposite ends of the rotary table, and can rotate vertically. A pair of clamp means is provided, and the object to be measured placed on the rotary table is clamped by the pair of clamp means, and the object to be measured is vertically rotated, and the object to be measured is inverted on the rotary table. And a possible reversing means.

[0009]

[Action]

 According to the present invention, the rotary table is provided with a rotating member that holds the object to be measured and is horizontally rotatable. Therefore, the object to be measured can be held on the rotating member and the rotating member can be horizontally rotated to fix the object to be measured at the desired rotating position by the rotary table.

Further, the reversing means is provided with a pair of clamping means, which are movable toward and away from each other and rotatable in the vertical direction, on opposite end sides of the rotary table. Therefore, the reversing means can clamp the object to be measured placed on the rotary table by the pair of clamping means and rotate the object to be measured in the vertical direction to invert the object to be measured on the rotary table. .

As described above, since the object to be measured can be inverted on the rotary table, the second measurement station or attitude control station, which is conventionally required, can be eliminated.

[0012]

【Example】

 The work posture control apparatus according to the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a front view of a work posture control device 30 according to the present invention, and FIG. 2 is a plan view thereof. As shown in FIGS. 1 and 2, the work posture control device 30 includes a rotary table 32 and a work reversing means 34. A DD motor (not shown) is housed in the support member 38 of the rotary table 32, and the support member 38 is attached to the base 40.

An operating member 42 is rotatably supported on an upper portion of the support member 38, and the operating member 42 is connected to a drive shaft of a DD motor so that a rotational force can be transmitted. A pair of cylinders 44 are erected on the operating member 42, and a roller conveyor 46 is attached to the tip ends of rods 44A of the pair of cylinders 44. Rollers 46A, 46A ... Are rotatably supported on the roller conveyor 46.

Rails 48A are fixed to the four corners of the roller conveyor 46 in a vertically extended state, and the rails 48 move along guides 48B. The guide 48B is fixed to the operating member 42 while being extended in the vertical direction. Therefore, when the pair of cylinders 44 extend, the rail 48 moves along the guide 48B, and the roller conveyor 46 moves vertically in the vertical direction. It descends during measurement to prevent interference with the detection head.

Further, a pair of rocket pin cylinders 50 (only one is shown) are erected on the operating member 42, and a seat plate 52 is attached to the tips of rods 50A of the pair of cylinders 50. . The seat plate 52 is positioned so as to come into contact with the roller conveyor 46. Rocket pins 54 are planted in the seat plate 52 in a state of protruding upward. The rocket pin 54 is positioned so that it can be inserted into the opening (not shown) of the roller conveyor 46.

Accordingly, the pair of cylinders 50 for rocket pins can be extended or contracted, and the seat plate 52 and the rocket pins 54 can be previously positioned at the predetermined height position. The work inverting means 34 includes a front inverting means 62 and a rear inverting means 60. A guide 64A is fixed to the lower end of the moving base 64 of the rear reversing means 60, and the guide 64A is slidably supported by a rail 66A fixed to the upper end of the support 66. The support base 66 is fixed to the base 40. Then, the movable table 64 moves in the front-back direction (left-right direction in FIG. 1) when the cylinder 68 expands and contracts.

A shaft 70 is rotatably supported on the moving base 64, and a clamp member 72 is fixed to the right end of the shaft 70. A lower claw 72A is provided at the lower end of the clamp member 72, and a movable clamp 74 is supported at the upper end of the clamp member 72 so as to be vertically movable. An upper claw 74A is provided at the right end of the moving clamp 74, and a recess 74B is formed at the left end of the moving clamp 74.

A roller 76 is arranged in the recess 74 B of the moving clamp 74. The roller 76 is rotatably supported at one end of a substantially U-shaped plate 78, and the plate 78 is rotatably supported by the moving base 64 via a pin 80. In addition, a roller 82 is arranged in a concave portion at the other end of the plate 78, and the roller 82 is rotatably supported by a rod end portion of a cylinder 84. Therefore, when the rod of the cylinder 84 contracts, the plate 78 rotates about the pin 80, so that the moving clamp 74 moves in the vertical direction. As a result, the upper claw 74A moves in the vertical direction.

A pulley 86 is fixed to the left end of the shaft 70, and the pulley 86 is connected to a drive motor 87 via a belt 86A shown in FIG. 2 so that the rotational force can be transmitted. The cylinder 84 is attached to the clamp member 72. Therefore, when the drive motor is driven, the shaft 70 rotates, and the cylinder 84 rotates together with the clamp member 72. Further, the rotating mechanism is provided with a fixing device that can be fixed at an arbitrary angle.

Further, a roller conveyor 88 is supported on the moving table 64 above the clamp member 72. Then, the moving table 64 moves up and down due to the expansion and contraction of the cylinder 85. Therefore, by moving the moving table 64 in the vertical direction, the roller conveyor 88 can be positioned at a height position flush with the roller conveyor 46 of the rotary table 32, and the clamp member 72 can be moved to a predetermined height position. Can be positioned.

The front inverting means 62 is configured substantially the same as the rear inverting means 60. The front reversing means 62 is different from the rear reversing means 60 in that it does not include the roller conveyor 88. Therefore, the constituent members of the front inverting means 62 are designated by the same reference numerals as those of the rear inverting means 60, and the description thereof is omitted. 1 and 2, 90 is a carry-in conveyor, and 92 in FIG. 2 is a carry-out conveyor, and the rotary table 32 is provided with a carry-in / carry-out conveyor positioning unit (not shown). In this case, the rotary table 32 is provided with an air / power source rotary joint (not shown), which allows the rotary table 32 to continuously rotate.

The operation of the work posture control apparatus according to the present invention constructed as described above will be described. In this case, the work is the cylinder block 14 shown in FIG. First, the moving table 64 of the rear inverting means 60 is moved vertically to position the roller conveyor 88 at a level flush with the carry-in conveyor 90 and the roller conveyor 46. In this state, the cylinder block 14 processed in the previous step is conveyed to the roller conveyor 46 via the carry-in conveyor 90 and the roller conveyor 88. The cylinder block 14 conveyed to the roller conveyor 46 moves the roller conveyor 46 to a predetermined position and is positioned. Positioning of the cylinder block 14 is performed by a seat plate 52 and a rocket pin 54. After the positioning, the roller conveyor 46 descends.

After the cylinder block 14 is positioned, the DD motor is driven to rotate the cylinder block 14 in the horizontal direction, thereby positioning the vertical surface (that is, four side surfaces) of the cylinder block 14 at a predetermined position. As a result, the holes and the like formed on the four side surfaces of the cylinder block 14 are measured by the in-line measuring machine 10. After the measurement of the four side surfaces of the cylinder block 14 is completed, the moving table 64 of the rear reversing means 60 is moved in the vertical direction to position the clamp member 72 at a predetermined height position. As a result, the heights of the clamp member 72 of the rear inverting means 60 and the clamp member 72 of the front inverting means 62 are the same. In this state, the clamp member 72 of the rear inverting means 60 and the clamp member 72 of the rear inverting means 62 are moved in the direction of the cylinder block 14 to extend the respective cylinders 84 and lower the upper pawl 74A. As a result, the left and right ends of the cylinder block 14 are clamped by the upper claw 74A and the lower claw 72A.

Next, the shaft 70 of the rear inverting means 60 and the shaft 70 of the front inverting means 62 are rotated to vertically position the upper surface and the bottom surface of the cylinder block 14. Subsequently, the DD motor is driven to rotate the cylinder block 14 in the horizontal direction, thereby positioning the upper surface and the bottom surface of the cylinder block 14 at predetermined positions. As a result, the holes and the like formed on the top and bottom surfaces of the cylinder block 14 are measured by the in-line measuring machine 10.

After the measurement is completed, the cylinder block 14 is conveyed to the subsequent process via the carry-out conveyor 92. Although the DD motor is used as the actuator for rotating the operating member 42 in the horizontal direction in the above embodiment, the present invention is not limited to this, and a servo motor or the like capable of controlling the angle may be used.

Further, in the above-mentioned embodiment, the moving base 64 of each of the rear reversing means 60 and the front reversing means 62 is moved in the front-back direction by the expansion and contraction of the cylinder 68. When positioning at a predetermined position, an actuator such as a servo motor and a ball screw may be used instead of the cylinder 68. Further, although the rear reversing means 60 and the front reversing means 62 are fixed to the base 40 in the above embodiment, the present invention is not limited to this, and the rear reversing means 60 and the front reversing means 62 are provided on the rotary table 32 to drive the DD motor. The front reversing means 60 and the rear reversing means 62 may be integrally rotated with the operating member 42. As a result, the work can be rotated in the horizontal direction while the work is clamped by the rear inverting means 60 and the front inverting means 62, so that the measurement can be facilitated.

[0027]

[Effect of device]

 As described above, according to the work posture control device of the present invention, the object to be measured is held by the rotating member and the rotating member is horizontally rotated, so that the object to be measured is rotated by the rotary table to a desired position. Can be fixed in a moving position. Further, the reversing means clamps the object to be measured placed on the rotary table by the pair of clamp means and rotates the object to be measured in the vertical direction to invert the object to be measured on the rotary table. it can.

As described above, since the object to be measured can be inverted on the rotary table, the second measurement station or attitude control station which is conventionally required can be removed. Therefore, it is possible to save space and equipment, to simplify the processing of measurement data of the entire work and the feedback to the front and back lines, and to reduce the influence of the environment such as temperature change.

[Brief description of drawings]

FIG. 1 is a front view of a work posture control device according to the present invention.

FIG. 2 is a plan view of a work posture control device according to the present invention.

FIG. 3 is a perspective view showing a conventional rotary table and an in-line measuring machine arranged in the vicinity of the rotary table.

[Explanation of symbols]

 10 ... In-line measuring machine 14 ... Work 30 ... Work posture control device 32 ... Rotary table 34 ... Work reversing means 42 ... Rotating member 60 ... Rear reversing means 62 ... Front reversing means 72 ... Clamping member 74 ... Moving clamp

Claims (1)

[Scope of utility model registration request] 1. An object to be measured, comprising: a rotating member that holds an object to be measured and is rotatable in a horizontal direction; A rotary table for fixing the rotary table to a desired rotation position, and a pair of clamping means that are movable in a direction toward and away from each other and that can rotate in a vertical direction are provided on opposite end sides of the rotary table, The pair of clamp means sandwiches an object to be measured placed on a rotary table and rotates the object to be measured in a vertical direction to invert the object to be measured on the rotary table. A work posture control device characterized in that