JP2003202275A - Gear meshing checking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a miniaturized gear meshing checking device of a simple and inexpensive structure. <P>SOLUTION: A detachable unit and an inspection unit are mounted oppositely to each other through a conveying path where a gear 1 to be inspected is vertically placed, the detachable unit 2 is provided with a gripping means 6 capable of being advanced to and retracted from the inspection unit 3, and a gear gripping part 7 composed of a three-finger chuck is mounted on a front part of the gripping means 6. The gripping part 7 is advanced and retracted in two stages, and grips an outer peripheral part of the gear 1 supported by a rail 9 and a guide beam 8, when it is advanced to a first stage. The rail 9 is lowered, and the guide beam 8 is raised in this condition, whereby the gear 1 can be freely advanced and retracted by the gripping part 7. By when advancing the gripping part 7 to a second stage, the gear 1 can be vertically placed and fixed to a set part 12 of the inspection unit 3. A master gear supporting part 11 is lowered in this condition to inspect the meshing. Then the gear 1 is retracted by two stages with the outer peripheral part of the gear 1 gripped by the gripping part 7, and the gear 1 is vertically placed and supported on the rail 9 again. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gear meshing inspection device for checking meshing of a gear after molding by using a master gear. In the invention of the present application, the vertical placement means that the rotation surface of the gear to be inspected is arranged in parallel with the vertical direction, and the horizontal placement means that the rotation surface is arranged in the horizontal direction. . In addition, the front of each unit constituting the gear meshing inspection device means the direction toward the conveyance path, and the front surface means the surface facing the conveyance path.

[0002]

2. Description of the Related Art Various gear meshing inspection devices of this kind are known in the art, for example, Japanese Patent Laid-Open Nos. 2001-4439 and 20.
01-30112, JP-A-58-7511 and the like. In order to avoid the influence of gravity at the time of inspection, all of these are inspected by horizontally engaging the master gear and the gear to be inspected.

[0003]

By the way, when the meshing inspection is performed in a horizontal position as described above, the gears to be inspected are handled vertically in the processes before and after the meshing inspection in the inspection unit. Therefore, the gear meshing inspection device becomes complicated and expensive. Further, since the meshing inspection mechanism is placed horizontally, the gear meshing inspection device becomes large in size. Therefore, an object of the present invention is to provide a gear meshing inspection device that has a simple structure, is inexpensive, and has a small size.

[0004]

In order to solve the above-mentioned problems, a gear meshing inspection apparatus according to claim 1 of the present application comprises a detachable unit and an inspecting unit which are arranged opposite to each other with a conveyance path of a gear to be inspected interposed therebetween. In the gear meshing inspection device that fixes the gear to be inspected to the set part of the inspection unit by the unit and inspects the engagement with the master gear, and then sends the gear to be inspected from the set part to the stock unit. Each step of carrying the gear vertically to the inspection unit, and carrying the gear to be inspected vertically to the detachable unit, setting to the inspection unit, the meshing inspection, and carrying to the stock unit. It is characterized by performing.

A second aspect of the present invention is characterized in that, in the first aspect, the weight of the master gear support portion is supported by a balance means to eliminate the influence of gravity in the meshing inspection.

According to a third aspect of the present invention, in the above-mentioned first aspect, the detachable unit has a gripping means that can move back and forth with respect to the inspecting unit while gripping the inspected gear. A gear gripping portion for gripping the outer periphery of the first gripping portion, and a first gripping portion and a second gripping portion, which are arranged to be displaced in the advancing / retracting direction, are provided on the gear gripping portion,
The first gripping portion grips the gear to be inspected at the time of setting in the inspection unit, and the second gripping portion grips the gear to be inspected at the time of subsequent detachment.

[0007]

According to the first aspect of the invention, the master gear is vertically supported by the inspection unit, and the inspected gear is continuously conveyed from the conveyance to the detachable unit to the mesh unit to the stock unit. In each process, since the gear to be inspected is placed vertically, unlike the conventional horizontally placed gear, the gear to be inspected can be handled as it is vertically placed through the meshing inspection and the steps before and after it. Therefore, the posture control mechanism of the gear to be inspected in the processes before and after the meshing inspection, which is required for the conventional inspection by the horizontal placement, becomes unnecessary, and the structure of the entire gear meshing inspection device can be simplified and the cost can be reduced. Moreover, since the meshing inspection in the inspection unit is carried out vertically, the meshing inspection mechanism of this portion can also be configured vertically, and the gear meshing inspection device can be made compact.

According to the invention of claim 2, since the weight of the master gear support portion in the inspection unit is supported by the balance means, the weight of the master gear support portion is applied to the meshing portion between the master gear and the gear to be inspected. Disappear. As a result, the influence of gravity on the master gear can be eliminated.

According to the third aspect of the present invention, by providing the first gripping portion and the second gripping portion in the gear gripping portion constituting the gripping means of the detachable unit, when the gear to be inspected is set to the inspection unit and thereafter. It can be grasped by different grasping parts when detaching. Therefore, the gear to be inspected can be gripped in a state suitable for the set, and at the time of removal, the gear can be gripped in a state suitable for smooth handling on the side of the detachable unit while avoiding interference with other parts.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment will be described below with reference to the drawings. 1 is a plan view of the entire gear meshing inspection device,
2 is a front view showing the detachable unit and the inspection unit, and FIG.
Is an enlarged front view of the detachable unit, FIG. 4 is an enlarged plan view of the detachable unit, FIG. 5 is an enlarged side view showing the back side of the detachable unit, FIG. 6 is an enlarged front view of the essential parts of the detachable unit, and FIG. 7 is its front side. 8 is an enlarged side view showing another main part of the detachable unit from the rear, FIG. 9 is an enlarged front view of the inspection unit, FIG. 10 is an enlarged plan view of the inspection unit, and FIG. 11 is an enlarged view of the inspection unit. FIG. 12 is a rear view, FIG. 12 is a view showing a meshing state of a master gear and a gear to be inspected at the time of meshing inspection, FIG.
FIG. 14 is a diagram schematically showing a conveyance mechanism of a gear to be inspected, FIG.
5 is an operation explanatory view of this transport mechanism.

In FIG. 1, the gear meshing inspection device is
The detachable unit 2 and the inspection unit 3 are arranged opposite to each other with the conveyance path W of the gear 1 to be inspected indicated by the center line interposed therebetween. The gear 1 to be inspected is sent in the carrying direction (arrow A) while being vertically placed on the carrying path W. The payout units 4 are arranged side by side on the downstream side of the detachable unit 2 in the transport direction,
The stock unit 5 is arranged side by side with the inspection unit 3 so as to face it.

As shown in FIG. 2, the attachment / detachment unit 2 is provided with a gripping means 6, a gear gripping portion 7 is provided on the front side thereof, and a guide beam 8 and a rail 9 are vertically arranged opposite to each other in front of the gear gripping portion 7. ing. Guide beam 8 and rail 9
Are vertically movable, and the guide beam 8 is further movable in the longitudinal direction thereof. The inspection unit 3 is provided with a master gear support portion 11 to which the master gear 10 is vertically mounted and a set portion 12 to which the gear 1 to be inspected is attached.

1 and 2, the gear 1 to be inspected is sent vertically to the front of the gripping means 6 on the rail 9, where it is gripped by the gear gripping part 7 and set in the setting part 12 of the inspection unit 3. The master gear 10 and the inspected gear 1
Engage and inspect for engagement. After that, the gear 1 to be inspected is again removed from the set portion 12 by the gripping means 6 and returned to the rail 9 and then sent to the front of the payout unit 4,
Here, by ejecting the head 13 of the payout unit 4, the inspected gear 1 that has been inspected is moved to the stock unit 5
The support rod 14 of the stock unit 5
It is designed to lock.

The stock unit 5 is provided with a large vertical rotary table 15, and a plurality of support rods 1 are provided on the outer peripheral portion thereof.
4 are provided at equal intervals in the circumferential direction. Each support rod 14
Has one end cantilevered by the rotary table 15 and the other end protruding at a right angle from the rotary table 15.

A plurality of gears 1 to be inspected (inspected gears), which have passed the inspection and are judged to have passed, are passed through the respective support rods 14 and passed through a hole 1a (see FIG. 13) provided at the center thereof to be skewered. Supported in a shape. When the gear to be inspected (inspected gear) is fully supported in the length direction of the support rod 14, the rotary table 15 rotates by a predetermined angle, and the next gear to be inspected (inspected gear) is not yet supported. The rod 14 is moved to the front of the payout unit 4.

Next, the detachable unit 2 will be described in detail.
As shown in FIGS. 3 to 5, the gripping means 6 is a table 2 which is movable back and forth by a first cylinder 21 on a support base 20.
Supported on 2.

The gear gripping portion 7 is provided with a three-jaw chuck 23 and a gear retainer 24, and is supported on the table 22 by a stay 26 which is movable back and forth by a second cylinder 25. 27 is a drive motor for the three-jaw chuck 23. Three-jaw chuck 2
3 is provided with three radially extending claws 28 forming a substantially Y shape,
The drive motor 27 is adapted to move back and forth in the radial direction. Hereinafter, the movement of the claw 28 outward in the longitudinal direction is referred to as spreading, and the movement in the opposite direction is contracted. The term “outward in the longitudinal direction of the claws 28” means the outward direction in the radial direction of the assumed circle formed by the claws 28.

As shown in FIG. 6, a front end of the claw 28 forms a horizontal portion 29, and a first grip portion 30 and a second grip portion 31 are formed stepwise at the tip thereof. Second grip 3
1 is formed to be one step lower than the first grip 30.

As shown in FIGS. 6 and 7, the gear retainer 2
Reference numeral 4 denotes a circular head 32 positioned inside each horizontal portion 29 of the three claws 28, and a horizontal support rod 3 for supporting the circular head 32.
3, a spring 34 provided around the support rod 33 for floatingly supporting the head 32, and contact portions 35 provided at equal intervals on the outer peripheral portion of the head 32 and projecting forward, and the head when the gear retainer 24 advances. The contact portion 35 of 32 comes into contact with the side surface of the gear 1 to be inspected and is elastically pressed by the spring 34.

In front of the gear gripping portion 7, there is arranged a rail 9 which is substantially angled and has its upper and longitudinal ends open and the longitudinal direction of which is parallel to the conveying path W, and which is fixed to a support 20. It is guided by the linear guide 36 by the third cylinder 36a and is vertically movable. As shown in FIG. 3, when the rail 9 descends, the upper end of the rail 9 is lowered by a dimension of H1 and the height of the upper end is lower than the lower end of the gear 1 to be inspected by a dimension of H2. .

The transfer line L indicates the height of the general bottom of the rail 9, and a recess 37 is formed as shown in FIGS. 8 and 14. The position where the concave portion 37 is formed is a portion such as the front of the three-jaw chuck 23 where the flow of the gear to be inspected 1 needs to be temporarily stopped and fixed. It's going down.

As shown in FIG. 8, the pair of vertical wall portions of the rail 9 form a stopper 38 for sandwiching the gear 1 to be inspected from the front and back to prevent the gear 1 from falling down, and extend above the center of the gear 1 to be inspected. There is. Further, a part of the rear surface side of the stopper 38 corresponding to the lower part from the center of the gear 1 to be inspected forms a notch 39, and the horizontal part 29 of the pawl 28 can be advanced and retracted from this notch 39. ing.

The guide beam 8 provided facing the rail 9 and above the rail 9 has a substantially gate-like shape which surrounds the outer peripheral portion of the upper half side of the gear 1 to be inspected and allows most of the plane portion to be exposed. From the gap between the inspection gear 1 and the guide beam 8, the upper two horizontal portions 29 of the three claws 28 can be moved back and forth (see FIG. 8). Details of the guide beam 8 will be described later.

Next, details of the inspection unit will be described. Figure 9
~ As shown in FIG. 11, the fourth cylinder 4 is mounted on the support base 40.
The master gear support portion 11 is supported via 1. The master gear support portion 11 is guided by guide rails 43 and 44 by a fourth cylinder 41 and a fifth cylinder 42, which will be described later, and is vertically movable. Further, a stay 46 is provided on the front surface of the upper portion of the support base 40 in front of the fourth cylinder 41, and the set portion 12 is supported by the stay 46.

The fourth cylinder 41 is the master gear support 1
1 for supporting the weight of the master gear 1 and holding the master gear supporting portion 11 at a predetermined position, and a balance for preventing the influence of gravity on the meshing portion between the master gear 10 and the gear 1 to be inspected. Functions as a means. The master gear 10 is supported by the master gear supporting portion 11 above the setting portion 12, and is rotated by a motor 47.

The master gear support portion 11 is a guide rail 4
Guided by 3, 44, it is vertically movable by the fifth cylinder 42. An engagement set spring 48 is engaged between the lower end of the fifth cylinder 42 and the master gear support 11.
Is provided. When the master gear supporting portion 11 is moved downward by the fifth cylinder 42 and the master gear 10 is meshed with the tooth portion of the gear 1 to be inspected attached to the setting portion 12, the weight of the master gear supporting portion 11 is eliminated. It is engaged only by the set load of the set spring 48.

FIG. 12 shows a master gear 10 and a gear 1 to be inspected.
The two-stage bosses 49a and 49b having a large diameter and different diameters are fixed to the support base 40 side with bolts, and the gear 1 to be inspected is attached to the small diameter boss 49a.
Fits in the hole 1a formed in the center of the
The rotation surface is abutted at b.

In the figure, the inspected gears 1 having different wall thicknesses are shown as thin-walled example A and thick-walled example B, respectively. Even if the thickness of the gear 1 to be inspected is changed in this way, if the hole diameters of the holes 1a of the gears are made constant, the bosses 49a having a small diameter can be fitted in common and the outer diameter of the gear 1 to be inspected is smaller than that of the gear 1 to be inspected. If the outer diameter of the large-diameter boss 49b is reduced, the inspected gear 1
Can be supported at the meshing position with the master gear 10.

FIG. 13 shows a gripping operation of the gear 1 to be inspected by the three-jaw chuck 23. When the gear 1 to be inspected is attached to the setting portion 12, first, the first cylinder 21 is extended and the gripping means 6 is moved forward (FIG. 3). Since the gear retainer 24 contacts the side surface of the gear 1 to be inspected, when the guide beam 8 is raised,
The inspected gear 1 released from the guide beam 8 is pressed against the stopper 38 on the front side by the gear retainer 24.
At this time, the stopper 38 is still in the raised position, but since the contact portion 35 of the gear retainer 24 is projected, the gear 1 to be inspected can be pressed forward, as shown in FIG.
As shown in A. At the same time, the horizontal portion 29 of the claw 28 that has been previously expanded advances to move the first gripping portion 30 to the gear 1 to be inspected.
Around the outer circumference of. Then, when the three-jaw chuck 23 is contracted, the outer periphery of the gear 1 to be inspected is grasped by the first grasping portion 30.

Then, the rail 9 is lowered to free the gear 1 to be inspected, and then the second cylinder 25 is extended to advance the gripping means 6 to move the gear 1 to be inspected to the setting portion 12 as shown by B. Can be installed. At this time, a sufficient clearance d1 is secured between the tip of the horizontal portion 29 of the claw 28 and the setting portion 12. Three-jaw chuck 2
Even if the gear 3 to be inspected is opened and the gear 1 to be inspected is released, the gear retainer 24 can rotate integrally with the master gear 10 while pressing the gear 1 to be inspected against the setting portion 12.

After the meshing inspection, in order to remove the gear 1 to be inspected, as shown in C, the pre-spread claw 28 is slightly pushed so that the second grip portion 31 is on the outer periphery of the gear 1 to be inspected. In this state, the tip of the horizontal portion 29 of the claw 28 is the setting portion 1
A sufficient clearance d2 can be secured between the two.
Therefore, when the outer periphery of the gear 1 to be inspected is gripped by the second grip portion 31 by contracting the three-jaw chuck 23, a state C is obtained.

Subsequently, the second claw 25 is moved backward to move the three-jaw chuck 23 backward.
Is returned to the initial position above the rail 9, but at this time, the gear 1 to be inspected is retracted by the dimension d3 corresponding to the width of the first grip portion 30, as shown in D, so that the guide beam 8 When the rail 9 is lowered and the rail 9 is raised, the gears to be inspected 1 do not interfere with each other, and the operation of the guide beam 8 and the rail 9 is smooth.

The dimension of d3 which is the width of the first grip portion 30 is a side portion 52 and a pressing portion 54 (FIG. 14) which are portions of the guide beam 8 for fitting and supporting the inspected gear 1.
In the stage D, the pressing portion 54 of the guide beam 8 is located inside the front and rear stoppers 38 of the rail 9, as will be described later. However, even though the gear 1 to be inspected has moved forward by the thickness of the gear support portion (side portion 52) to be inspected of the guide beam 8 by positioning the front stopper 38 at A as a reference, By re-gripping by the second grasping portion 31, this movement amount is retreated, and the above becomes possible.

Next, the structure and operation of the guide beam 8 will be described. 14 and 15, the handling of a plurality of gears 1 to be inspected will be explained at the same time.
Are added to distinguish. As shown in FIG. 14, the guide beam 8 is provided with two recesses 50 and 51 for fitting the gears 1B and 1C to be inspected in the longitudinal direction, and surrounds the recesses 50 and 51. A plurality of side parts 52 extending in the vertical direction are provided. Each side 52
A groove is formed in the edge portion along the length direction of the gear, and the outer peripheral portion of the gear 1 to be inspected is fitted therein. In addition, a small protrusion-shaped stopper 53 projects downward from the recess 50 to support the upper part of the gear 1B to be inspected. The stopper 53 holds the guide beam 8 in the recess 50.
Are provided in pairs in the longitudinal direction of the.

Further, a bifurcated pressing portion 54 is formed at the tip of the guide beam 8 so as to project in the lengthwise direction, and is fitted into the groove of the bifurcated portion when the inspected gear 1A that has been inspected moves to the front of the payout unit 4. Both sides of the gear 1A to be inspected are brought into contact with and supported by the engagement. The guide beam 8 moves up and down in the sixth cylinder 55, and the seventh cylinder 56
It is designed to move back and forth in the length direction.

FIG. 15 is a schematic diagram for explaining this operation. First, the state shown in A is a state immediately before attaching the gear 1B to be inspected to the setting portion 12, the rail 9 is raised, and the stopper 38 is attached. The inspected gear 1B is supported by the guide beam 8, and the guide beam 8 descends to fit the inspected gear 1B into the recess 50 so that the side portion 52 supports the side portion and the stopper 53 supports the upper portion. At this time, the next gear to be inspected 1C is also supported in the recess 51.

Subsequently, as shown in B, the guide beam 8
When the first cylinder 21 is moved forward while the gear is raised, a part of the gear retainer 24 abuts against the side surface of the gear to be inspected 1B and presses it against the stopper 38, and at the same time, the first grip portion 30 of the pawl 28 covers the gear. The outer periphery of the inspection gear 1B is gripped. In this state, the gear to be inspected 1B is supported by the gear grip portion 7. Then, when the rail 9 is lowered as shown in C, the gear IB to be inspected is held in the same position. At this time, the inspected gear IC descends together with the rail 9. During this descent, the gear IC to be inspected is stably supported in the rail 9 by the stopper 38.

The gear 1A to be inspected is sent to the stock unit 5 at the stage C. That is, the gear 1A to be inspected, which has already been inspected at the stage of A, moves on the rail 9 to the front position of the payout unit 4 and is supported by the pressing portion 54. At this time, the head 13 of the payout unit 4 is projected and fitted into the hole 1a of the gear 1A to be inspected to support the gear 1A to be inspected. At the subsequent stage B, the guide beam 8 rises and is released from the holding portion 54. However, even if the rail 9 moves downward at the stage C, it is supported as it is.

At stage C, the rotary table 15 of the stock unit 5 rotates by a predetermined angle to move the support rod 14 forward of the payout unit 4, and the support rod 14 is coaxial with the head 13. By injecting the head 13 further forward, the gear 1A to be inspected is sent to the stock unit 5, and the support rod 14 is inserted into the hole 1a.
Since it has a smaller diameter, it enters the hole 1a and supports the gear 1A to be inspected on the support rod 14. After that, when the head 13 is retracted, the gear 1A to be inspected is locked by the support rod 14 and is discharged to the stock unit 5. In the stock unit 5, when the support rod 14 is full, the rotary table 15 rotates by a predetermined angle to position the next support rod 14 in front of the payout unit 4.

At the stage D, the second cylinder 25 is extended and the gear 1B to be inspected is attached to the setting portion 12. When the second cylinder 25 is retracted after the meshing inspection is performed in this state, the gear 1B to be inspected is in the same state as in the C stage. So E
As shown in (1), when the rail 9 is raised, the inspected gear 1B that has been inspected is again supported by the rail 9. At the same time, when the guide beam 8 is retracted and then lowered, the pressing portion 54 supports the side portion of the gear 1B to be inspected and the gear 1C to be inspected is fitted in the recess 50, and at the same time, the next gear 1D to be inspected is recessed. Fit to 51.

Then, as shown in D, the second cylinder 25
By extending, the gear 1B to be inspected can be attached to the set portion 12. In this state, when the second cylinder 25 is retracted after the meshing inspection, the state becomes C. Therefore, as indicated by E, when the rail 9 is raised, the inspected gear 1B, which has been inspected, is again supported by the rail 9. At the same time, when the guide beam 8 is retracted in its longitudinal direction and then lowered,
The holding portion 54 supports the side portion of the gear 1B to be inspected, and the gear 1C to be inspected is fitted in the recess 50, and at the same time, the next gear 1D to be inspected is fitted in the recess 51.

Next, as shown by F, when the guide beam 8 is moved forward, each inspected gear moves on the rail 9, and the inspected gear 1B moves to the front of the payout unit 4 to become the inspected gear 1A. The inspected gear 1C moves to the front of the gear grip 7 and returns to A.

As described above, according to this embodiment, the master gear 10 is vertically supported by the inspection unit 3, and
Regarding the gear 1 to be inspected, the gear 1 to be inspected is vertically installed in each successive process from the conveyance to the detachable unit 2 through the meshing inspection to the conveyance to the stock unit 5. It is possible to handle the gear 1 in the vertical position through the meshing inspection and the processes before and after the meshing inspection. Therefore, the posture control mechanism of the gear to be inspected in the processes before and after the meshing inspection, which is required for the conventional inspection by the horizontal placement, becomes unnecessary, and the structure of the entire gear meshing inspection device can be simplified and the cost can be reduced.

In addition, since the meshing inspection in the inspection unit 3 is carried out vertically, the meshing inspection mechanism of this portion, that is, the fixed portion of the master gear 10 and the setting portion 12 of the master gear supporting portion 11 are vertically arranged. As a result, this portion does not overhang in the horizontal direction, and the gear meshing inspection device can be made compact.

Since the weight of the master gear support portion 11 in the inspection unit 3 is supported by the fourth cylinder 41, the weight of the master gear support portion 11 is applied to the meshing portion between the master gear 10 and the gear 1 to be inspected. Disappear. As a result, even if the master gear 10 and the gear 1 to be inspected are vertically placed and meshed with each other, it is possible to eliminate the influence of gravity on the master gear support portion 11 at the meshed portion.

Further, by providing the first grip portion 30 and the second grip portion 31 in the gear gear gripping portion 7 to be inspected which constitutes the gripping means 6 of the detachable unit 2, when the gear to be inspected is set in the inspection unit 3, When they are subsequently removed, they can be gripped by different gripping parts. Therefore, the gear 1 to be inspected can be gripped in a state suitable for the set, and at the time of removal, it can be gripped in a state suitable for smooth handling on the side of the detachable unit while avoiding interference with the guide beam 8 and the rail 9.

Moreover, the detachable unit 2 is used when the gear 1 to be inspected is attached to or detached from the inspecting unit 3.
Since the first and second cylinders 25 are moved back and forth in two stages, the gear 1 to be inspected by the guide beam 8 and the rail 9 can be reliably attached / detached in synchronization with the supporting operation from the vertical direction. Further, by operating the guide beam 8 and the rail 9 separately from each other, the gear 1 to be inspected can be attached and detached by moving the gear 1 to be inspected vertically.

The invention of the present application is not limited to the above-described embodiments, and various modifications and applications are possible within the same principle of the invention. For example, the balancing means may be composed of a simple spring member instead of the fourth cylinder. Further, the gripping means is not limited to the three-jaw chuck, and various known mechanisms can be used.

[Brief description of drawings]

FIG. 1 is a plan view of the entire gear meshing inspection device.

FIG. 2 is a front view showing a detachable unit and an inspection unit.

FIG. 3 is an enlarged front view of the detachable unit.

FIG. 4 is an enlarged plan view of the detachable unit.

FIG. 5 is an enlarged side view showing the back side of the detachable unit.

FIG. 6 is an enlarged front view of the main part of the detachable unit.

FIG. 7 is an enlarged side view showing the front side of the main part of the detachable unit.

FIG. 8 is a side view showing the rail stopper from the rear side.

FIG. 9 is an enlarged front view of the inspection unit.

FIG. 10 is an enlarged plan view of the inspection unit.

FIG. 11 is an enlarged rear view of the inspection unit.

FIG. 12 is a view showing a meshed state of a master gear and a gear to be inspected.

FIG. 13 is a view for explaining a gripping operation of gripping means.

FIG. 14 is a diagram schematically showing a conveyance mechanism of a gear to be inspected.

FIG. 15 is an operation explanatory view of the above-mentioned transport mechanism.

[Explanation of symbols]

1: inspected gear, 2: detachable unit, 3: inspection unit, 4: payout unit, 5: stock unit,
6: gripping means, 7: gear gripping part, 8: guide beam,
9: rail, 10: master gear, 11: master gear support part, 12: set part, 23: three-jaw chuck, 24:
Gear retainer, 30: first gripping portion, 31: second gripping portion, 41: fourth cylinder, 42: fifth cylinder, W: transport path

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Kikuo Nakagawa             1500 Hirakawa, Otsu-cho, Kikuchi-gun, Kumamoto             Inside the Kumamoto Factory of TAGIKEN Co., Ltd. (72) Inventor Takatoshi Nakamura             1500 Hirakawa, Otsu-cho, Kikuchi-gun, Kumamoto             Inside the Kumamoto Factory of TAGIKEN Co., Ltd. F-term (reference) 2G024 AB06 BA05 EA01

Claims (3)

[Claims] 1. A detachable unit and an inspection unit, which are arranged to face each other with a conveyance path of the gear to be inspected in between, and the gear to be inspected is fixed to a set portion of the inspection unit by the detachable unit to inspect meshing with a master gear. Then, in the gear meshing inspection device, after which the gear to be inspected is removed from the set portion and sent to the stock unit, while supporting the master gear vertically in the inspection unit,
A gear meshing inspection apparatus, wherein each step of carrying to the detachable unit, setting to the inspecting unit, the meshing inspection, and carrying to the stock unit is performed with the gear to be inspected vertically placed. 2. The gear meshing inspection device according to claim 1, wherein the inspection unit eliminates the influence of gravity in the meshing inspection by supporting the weight of the master gear support portion by a balance means. 3. The attachment / detachment unit has a gripping unit that can move back and forth with respect to the inspection unit while gripping the gear to be inspected, and the gripping unit grips a periphery of the gear to be inspected. And a first and a second gripping portion arranged to be shifted in the advancing / retracting direction are provided in the gripping portion, and the gear to be inspected is gripped by the first gripping portion when set in the inspection unit, The gear meshing inspection device according to claim 1, wherein the gear to be inspected is gripped by the second grip portion at the time of subsequent removal.