JPH062111U - Touch lever moving mechanism of touch lever type dimension measuring instrument - Google Patents

Abstract

(57) [Abstract] [Purpose] The pinions 7 are engaged with the racks 41 and 42 formed in the central portions of the shafts 4A and 4B, and the touch levers 2A and 2B facing each other are moved closer or farther by rotating the pinions 7. . [Structure] The position detector 1A is attached to the support base 3A, and the position detector 1B is attached to the support base 3B. The support 3A is connected to the shaft 4A, and the shaft 4A is inserted into the hole 32 of the support 3B. The support 3B is connected to the shaft 4B, and the shaft 4B is inserted into the hole 31 of the support 3A. The shaft 4A and the shaft 4B are held in parallel by the side surfaces 51 and 52 of the carriage 5. A rack 41 is formed in the center of the shaft 4A, a rack 42 is formed in the center of the shaft 42, and the rack 41 and the rack 42 are arranged so as to face each other. A motor 6 is attached to the carriage 5, a pinion 7 is fixed to a rotation shaft of the motor 6, and the pinion 7 engages with the racks 41 and 42.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a moving mechanism of a touch lever of a touch lever type dimension measuring instrument. The touch lever type dimension measuring instrument is an electrical dimension measuring instrument that compares and measures the outer diameter of workpieces with reference to a standard gauge.

[0002]

[Prior art]

 Next, the configuration of a conventional touch lever moving mechanism will be described with reference to FIG. 7A is a front view and FIG. 7A is a right side view. 7, 1C and 1D are position detectors, 1E and 1F are clamps, 1G and 1H are spindles, 1J and 1K are clamps, 2A and 2B are touch levers, 9 is a carriage, and 10 is a workpiece whose outer diameter is to be measured. Is. In FIG. 7, the touch lever 2A is attached to the position detector 1C, and the touch lever 2B is attached to the position detector 1D. The work 10 is conveyed between the touch levers 2A and 2B, the work 10 is sandwiched between the touch levers 2A and 2B, and the displacement of the touch levers 2A and 2B is detected by the differential transformer in the position detectors 1C and 1D. Measure the outer diameter of. A similar measurement method is also described in the specification of Japanese Patent Application No. 3-74024.

In FIG. 7, a groove is formed on the bottom surface of the position detectors 1C and 1D and the bottom surfaces of the clamps 1E and 1F, and the groove is formed on the bottom surface of the carriage 9. Move 1D. The position detectors 1C and 1D are fixed to the carriage 9 by pushing the dovetail surface of the carriage 9 with the fixing screws of the clamps 1J and 1K. When finely moving the position detectors 1C and 1D, the clamps 1J and 1K are released, the clamps 1E and 1F are fixed to the carriage 9, and the spindles 1G and 1H are rotated.

[0004]

[Problems to be solved by the device]

 In FIG. 7, the position detectors 1C and 1D must be moved to the positions where the touch lever 2A and the touch lever 2B are symmetrical with respect to the center of the work 10. Also, the work of fixing and releasing each of the four clamps is time-consuming. This invention connects a first shaft to a first position detector with a touch lever, connects a second shaft to a second position detector with a touch lever, and connects a first shaft and a second shaft. Are arranged in parallel, the pinion is engaged with the rack formed in the center of the first and second shafts, and the rotation of the pinion brings the touch levers facing each other closer and further away It is intended to provide a lever moving mechanism.

[0005]

[Means for Solving the Problems]

 In order to achieve this object, in the present invention, a position detector 1A is attached to the upper portion and a support base 3A having a hole 31 on the side surface, and a position detector 1B attached to the upper portion and a support base 3B having a hole 32 on the side surface are provided. , The shaft 4A which is connected to the support base 3A and is inserted into the hole 32 of the support base 3B, and the rack 41 is formed in the central portion, and the shaft 4A which is connected to the support base 3B and is inserted into the hole 31 of the support base 3A. A shaft 4B on which a rack 42 is formed, a carriage 5 for arranging the rack 41 and the rack 42 so as to face each other and holding the shafts 4A and 4B on the side surfaces 51 and 52 in parallel, and a carriage 5 is provided with a motor 6 and a pinion 7 that is connected to the rotation shaft of the motor 6 and that is engaged with the rack 41 and the rack 42. When the pinion 7 rotates, the touch lever 2A and the touch lever 2B touch each other. Bar 2A and the touch lever 2B is to sandwich the workpiece 10.

[0006]

[Action]

 Next, the structure of the touch lever moving mechanism according to the present invention will be described with reference to FIG. 1A and 1B are position detectors, 3A and 3B are support bases, 4A and 4B are shafts, 5 is a carriage, 6 is a motor, 7 is a pinion, and others are the same as those in FIG. In FIG. 1, the position detector 1A is attached to the support base 3A, and the position detector 1B is attached to the support base 3B. The support 3A is connected to the shaft 4A, and the shaft 4A is inserted into the hole 32 of the support 3B. Similarly, the support base 3B is connected to the shaft 4B, and the shaft 4B is inserted into the hole 31 1 of the support base 3A. The shaft 4A and the shaft 4B are held in parallel by the side surfaces 51 and 52 of the carriage 5. A rack 41 is formed in the center of the shaft 4A, and a rack 42 is formed in the center of the shaft 4B. The rack 41 and the rack 42 are arranged so as to face each other. A motor 6 is attached to the carriage 5, a pinion 7 is fixed to the rotation shaft of the motor 6, and the pinion 7 engages with the racks 41 and 42.

FIG. 2 is a state diagram in which the touch lever 2A and the touch lever 2B are brought close to each other and the work 10 is sandwiched therebetween. FIG. 1 shows a state before the touch lever 2A and the touch lever 2B are separated from each other and the work 10 is sandwiched. When the pinion 7 is rotated by the motor 6 from the state shown in FIG. 1, the shafts 4A and 4B move to the state shown in FIG. 2, and the outer diameter of the work 10 is measured. When the pinion 7 is rotated in the opposite direction from the state shown in FIG. 2, the state shown in FIG. 1 is restored.

Next, the operation of the present invention will be described with reference to FIGS. 3 to 5. FIG. 3 is a plan view of FIG. 1, and 8A and 8B in FIG. 3 are cylinders, and 8C and 8D are elastic rubbers. In FIG. 3, the cylinder 8A is held by the side surface 53 of the carriage 5, and the cylinder 8B is held by the side surface 54 of the carriage 5. Rubber 8C and 8D are attached to the tip ends of the piston rods of the cylinders 8A and 8B, respectively, via attachment plates.

FIG. 4 is a plan view of FIG. 2. When the cylinders 8A and 8B are driven from the state of FIG. 4, the rubber 8C of the cylinder 8A comes into contact with the shaft 4A and the rubber 8D of the cylinder 8B comes into contact with the shaft 4B. The state shown in FIG. In the state of FIG. 5, the rubbers 8C and 8D elastically contact the shafts 4A and 4B, so that the shafts 4A and 4B do not move. When the piston rods of the cylinders 8A and 8B are returned from the state shown in FIG. 5, the state shown in FIG. 4 is restored.

Next, a state in which the touch lever moving mechanism of FIG. 1 is incorporated in the apparatus will be described with reference to FIG. In FIG. 6, the work 10 is held by the tailstock 11 and the tailstock 12. The carriage 5 is fixed to an L-shaped slide table 13, and the slide table 13 is guided by a linear slide 15 of a column 14 to move up and down.

[0011]

[Effect of device]

 According to this invention, the first shaft is connected to the first position detector with the touch lever, the second shaft is connected to the second position detector with the touch lever, and the first shaft and the second shaft are connected. Axes are arranged in parallel, the pinion is engaged with the rack formed in the center of the first and second axes, and the touch levers that face each other are moved closer and farther by rotating the pinion. Will be easier to move.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a touch lever moving mechanism according to the present invention.

FIG. 2 is a state diagram where the touch levers 2A and 2B of FIG. 1 are brought close to each other.

FIG. 3 is a plan view of FIG.

FIG. 4 is a plan view of FIG.

5 is a state diagram in which cylinders 8A and 8B of FIG. 4 are pushing shafts 4A and 4B.

6 is a state diagram in which the touch lever moving mechanism of FIG. 1 is incorporated in an apparatus.

FIG. 7 is a configuration diagram of a conventional touch lever moving mechanism.

[Explanation of symbols]

 1A Position detector 1B Position detector 2A Touch lever 2B Touch lever 3A Support stand 3B Support stand 4A Axis 4B Axis 5 Reciprocating table 6 Motor 7 Pinion 8A Cylinder 8B Cylinder 8C Rubber 8D Rubber 10 Work 31 Hole 31 Hole 41 42 Rack 41 Rack Side surface 52 Side surface 53 Side surface 54 Side surface

Claims (2)

[Scope of utility model registration request] 1. A work (10) with a first touch lever (2A) attached to a first position detector (1A) and a second touch lever (2B) attached to a second position detector (1B). ), The first touch lever (2A) and the second touch lever (2B)
In the touch-lever type dimension measuring instrument that measures the outer diameter of the work (10) from the position of the The table (3A) and the second position detector (1B) are attached to the upper part, and the second support table (3B) having the second hole (32) on the side surface and the first support table (3A) The second one of the second supporting bases (3B) connected to each other
The first support (3B) is connected to the first shaft (4A), which is inserted into the hole (32) of the first rack (41) formed in the center, and the first support (3B). 3A) 1st
Face the first rack (41) and the second rack (42) with the second shaft (4B) that is inserted into the hole (31) of the second rack and has the second rack (42) formed in the center. The first shaft (4) on the first side surface (51) and the second side surface (52).
A) and the second shaft (4B) are held parallel to each other, the carriage (5), the motor (6) attached to the carriage (5), and the rotary shaft of the motor (6) are connected to It has a rack (41) and a pinion (7) that is engaged with the second rack (42), and the rotation of the pinion (7) brings the first touch lever (2A) and the second touch lever (2B) close to each other. A touch lever movement mechanism of a touch lever type dimension measuring instrument, wherein the first touch lever (2A) and the second touch lever (2B) sandwich the work (10) when the touch lever is pressed. 2. The first cylinder (8A) is connected to the third part of the carriage (5).
Hold the second cylinder (8B) on the side (53) of the carriage (5)
The first rubber (8C) on the tip of the piston rod of the first cylinder (8A) and the second side of the piston rod of the second cylinder (8A). Rubber (8D)
, The first rubber (8C) is brought into contact with the first shaft (4A) by driving the first cylinder (8A), and the second rubber (8D) is driven by driving the second cylinder (8B). The touch lever moving mechanism of the touch lever type size measuring instrument according to claim 1, wherein the touch lever moving mechanism is in contact with the second shaft (4B).