JPS5897614A - Product inspecting device - Google Patents

Abstract

PURPOSE:To handle various assembled products, by using one or plural measuring devices in combination according to the inspection contents of assembled prodducts. CONSTITUTION:A product inspecting device onsists of an No.1 inspecting unit 1, No.2 inspecting unit 2, No.3 inspecting unit 3, measuring probe and sensor automatic replacing device 4, conveyance position deciding device 5, acoustic structure, product inspection controller, base 6, pallet 7, and product fitting jig 8. Those inspecting units 1-3 are used in proper combination according to the inspection contents of assembled products and inspection data from those inspection units are processed to decide on whether each assembled product is accepted or rejected.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an inspection device for 011 assembled products, which allows inspection content to be adjusted according to the assembly product, and is useful in inspection industries that have conventionally relied on manual inspection! Automate one meeting,
We carry out highly efficient inspections and output inspection result data.Based on 9 dimensional and shape accuracy inspections and performance inspections, we make decisions on pass or fail of assembled products, and also on rejected products.
This is a product inspection device whose purpose is to output diagnostic data of the cause and to guarantee the quality of assembled products.

Below, 1 of the present invention! The explanation will be based on the direction of NtwJ.

In FIG. 1, the configuration of the product inspection device is as follows: main inspection unit 1. Todoroki 2 inspection unit 2. Todoroki S inspection unit 5. #
II constant probe and senna automatic exchange device4. Conveyance positioning device 51 Soundproof structure (not shown) 9 (not shown) O 11 Product inspection tube M device II Consists of a base 6°, a pallet 7, and a product mounting jig 8.

(X-Y, ZC) perpendicular to the inspection unit IFi
A glove that can be moved in one direction and used for planning 10
1 scooping rim 1a to be gripped by 1i, total rim 11LO, 1 head 1b with a built-in two-wheel moving device (not shown), and 2 of each of the 4 pillars 10 erected on the base 6. A cross rail 1C is mounted on two parallel cross beams 1d supported horizontally, and a needle side hend 1b is mounted thereon, and a cross rail 1C is installed on the pace 6. It is composed of a bed 1g on which a funeral table 1ff is mounted and a bed 1g incorporating approximately 9 X-axis moving devices, and has a three-dimensional coordinate measuring machine structure. In addition, each shaft guideway uses a pneumatic bearing guideway, and positioning is performed using KFi laser feedback.
Adopts C control method to improve dimension and shape accuracy (parallelism).

angle) and static runout.

The M2 inspection unit 2 and the A5 inspection unit 5 are located between the &1 inspection unit 104 pillars 1, and the assembled product 9
They are placed in parallel, facing each other with the two in between.

The inspection unit 2 includes a transmission device 2m that provides a rotational drive to the assembled product 9 for dynamic rotation accuracy and static photography measurement;
Applying a constant torque in the forward and reverse directions between the input and output shafts of the assembled product 9,
When the lost motion measurement device 2'b detects the relative rotation angle between them and outputs the separated lost motion into a spring constant and backlash, and when the assembled product 9 is started,
It consists of a torque measuring device 2C that measures starting torque and rotational torque during rotation.

This ET uses an IC control method.

, the transmission 2a is perpendicular to X.! - It is movable in each axis direction of 2, and has a built-in one-rotation drive device with a round shape 9 that rotates the assembled product 9. Stomach stomach constant device 2
b is movable in each orthogonal Y-2O direction, and has a rotation angle detector (not shown) and a torque detector (not shown), which detects the relative rotation angle between the input and output shafts of the assembled product 90. It has a built-in rotary drive device that gives a rounded shape of 9 or so. The torque measuring device 2C is movable in the directions of the orthogonal τ and 20 wheels, and includes a detector at 9 for detecting the starting torque and rotational torque of the assembled product 9, and a rotation drive device at 9 for providing rotational drive. The built-in flat 5 inspection unit 5 is a dynamic l1l-accuracy constant device 5a lined up to confirm the dynamic runout during 90 rotations of the assembled product. It is composed of a load and transmission device 5b consisting of a 90% transmission section that provides rotational drive and a 90% braking section for fixing lost motion by Todoroki 2 inspection unit 2, and adopts an IC control system. are doing.

Dynamic rotational accuracy measuring device 5&ij, is movable in each axis direction of X, Y-Z, and has built-in approximately 9 detection a for inspecting dynamic runout during 90 rotations of an assembled product.

In addition, each device 2a, 2b2C and A5 of the inspection unit 2
In the inspection unit 5, the load and transmission device 5b uses a pneumatic chuck to rotate and fix the rotation of the assembled product 9. An automatic coupling device 211Lt for automatically attaching and detaching the shaft of the assembled product 9 is attached to the front of each device.

The automatic glove and senna exchange device 4 is movable in the orthogonal directions of the X, Y-Z axes, and has a gamma 4a for exchanging the measurement probe 10, an arm rotation axis C, and a sensor f of 9. It consists of a four-duct end 4b that can be rotated and freely attached to the assembled product 9 automatically. X
・! The four wheels of Z-c are controlled by MC.

The items to be inspected using a measuring glove are dimensions.

Shape accuracy and static runout accuracy are listed, and measurement sensors include vibration, aim, and temperature.

The conveyance positioning device 5 is composed of a pallet positioning mechanism and a conveyance device 5a, and is a device that automatically carries the assembled product 9tIIL attached baren) 7 to the inspection position, positions it, and carries it out after inspection. It is.

The soundproof structure of 9 omitted is AI inspection unit H, A2 inspection unit) 2. A soundproof room of 9 omitted that covers a part of the ASS inspection unit 3 scoop 1115 and the transmission device 2a of the A2 inspection unit 2
It consists of about 9 soundproof boxes and about 9 air conditioners to prevent noise emitted from the rotary drive device.

The product inspection management device of 9 omitted is A1 inspection unit 1, M2
Inspection 1 unit 2, Mu3 inspection unit 5tl each NG
Control unit for positioning and needle side control, test data processing calculation unit for calculating and outputting the measured test data and measurement data for diagnosis of non-jLIx causes in a predetermined format; transport and positioning of the assembled leg product 9; It consists of a transport positioning control section that performs the following operations, and a rounding preparation work processing section that outputs a work report for one work instruction by an operator and various monitor data.

Below, as a representative example of an assembled product, as shown in Figures 1 and 2,
The explanation will focus on the principle t when inspecting the spindle head and gear box, and the gear box inspection process srt.

(1) The assembled product 9 is attached to the pallet 7 via the scattering jig 8t, and set on the conveying device SaK.

(2) The assembled product 9 is installed in a soundproof room with an automatic opening/closing door of 9 by the vR feeding device 5a, and is placed on the table lf of the inspection unit 1 of the 9th stage [along with the pallet 7].

(2) Position the child table f at the inspection position.

Φ, the dimension measuring probe 10 is gripped by the measuring ram 1aK by the copper measuring probe and senna automatic exchange device 4.

■9 Gripped dimension measuring glove! OFi, table l
Calibrate using a master gauge of approximately 9 installed on f.

After calibration, (2) The adjustment probe assembly approaches the assembled product 9 under the control of the AI inspection unit 105111 to perform dimension adjustment and shape accuracy measurement. After completion.

■ Automatic replacement of the measuring glove for static photography Approach the assembled sea bream product 9 while holding the measuring glove, and when measuring one sleeve of the teeth 11M, from the transmission device 112 aK of the inspection unit 2 Automatic coupling device 2a
Rotate at low speed and measure static runout. In the case of measuring the other ring of the gear box, the automatic coupling device 1 is rotated at a low speed via 211 from the load and transmission device 5'bK of the gear box 5, and a static runout measurement is performed.

(2) After the $1 constant is completed, the needle side ram 1lLi stroke upper limit filK is retracted.

(2) Position the child table fVt at the lost motion measurement position and clamp it. 5 Inspection 2 - 5 load and transmission device @5B is positioned at 111 [K] of the assembled product 9, and the output shaft of the assembled product 9 is gripped via the automatic coupling device 2d, and the rotational drive is fixed. 4. On the other hand, the lost time measuring device 2bK of the A2 inspection unit 2 applies a constant torque in forward and reverse directions to the human power shaft via the automatic coupling device 2d to completely measure the lost time.

0. Connection of automatic connection device 2d of input/output shaft and table 1
Release the clamp f and return each load to the standby position i
do.

qν, position the table if at the torque measurement position and clamp it. Torque measuring device 6C of A2 inspection unit 2
One shaft of the assembled product 9 is gripped through the automatic coupling device 2al, and the starting torque and rotational torque during rotation when the product is rotated from a stationary state are measured.

[Yes], l: 1 connection of dynamic connection device 2d and table 1f
After reclamping, the measuring device is retracted to the standby position.

0. Position the table lft at the measurement position for vibration** sound and temperature and clamp it. The shaft t of the assembled product 9 is connected via the automatic coupling device 2a by the transmission device 2a of the A2 inspection unit 2.
- Grip it and drive it to rotate at a predetermined number of rotations. On the other hand, the measurement valve and senna automatic exchange device 4Kjii! A vibration sensor and a temperature sensor are automatically attached to a predetermined position on the assembled product 90 by a robot hand (not shown), and the sensor is fixed at a fixed distance from the assembled product 9, or has a mechanism that can be automatically attached and detached. Attach and measure.

(φ, in the case of a gear box, the above measurement is completed, each hooking sensor V
The rlI11 fixed group and automatic senna exchange device 4 store the senna in a senna magazine of about 9, and the automatic coupling device 2 (1
2C) Transmission device 2& is retracted to the standby position.

The assembled product 9Fi and the pallet 7 are removed from the table 1f, placed on the transport and positioning device 5KJ, and transported outside the soundproof room 9.

0. In the case of the spindle head d1 Noise, noise, and temperature measurement In the connected state of the seams and trenches, ^3 Position the dynamic rotation accuracy measuring device 5& of the inspection unit 3 at the measurement position, and measure the built-in device. The measuring senna is inserted into the main shaft of the spindle head, and the main shaft is rotated once at low speed by the transmission device 2a to determine the initial position of the measuring senna.Then, the measuring senna is rotated at a predetermined number of rotations to adjust the radial and axial direction of the spindle head. Determine the dynamic rotational accuracy in the -j direction. After measurement, disconnect the automatic coupling device @ 2 d and connect the transmission device 2.
a and the dynamic rotation accuracy measuring device 3a are retracted to the standby position.

Assembled product? The entire Fi pallet 7 is removed from the table 1f, transferred to the transport and positioning device 5, and carried out to the outside of the soundproof room at 9.

The method for processing test data regarding each test item above is explained in the fifth section.
This will be explained with a diagram. In the above test, the measuring glove and II
Inspection data from a measurement sensor consisting of an I constant sensor is stored in an inspection data storage device via an inspection data processing operation St, and the inspection data processing operation section processes the cough inspection data, and the results are stored in an assembled product. A pass/fail judgment process is performed by comparing the test data with inspection standard data that guarantees the quality of the test data, and if the test data is passed, the test data is output.

In the case of a failure, the defect cause pattern of the assembled product is analyzed in advance using known storm-proof parts and compared with the patterned pattern based on the vibration/noise inspection data of the assembled product. Immediately eliminate the cause. The diagnostic results, vibration/noise inspection data, inspection data for the component parts such as processed parts and lecture items, and assembly inspection data are simultaneously output.

As is clear from the above description, the present invention enables each measuring device to be used independently or to determine whether a product is acceptable or not, and to output diagnostic data regarding the cause of a failed product, depending on the inspection content of the assembled product. This is done automatically and the quality of assembled products can be guaranteed.

Furthermore, the equipment is installed in a soundproof room with a built-in air conditioner, which reduces background noise during noise testing and stabilizes ambient temperature changes around each testing unit, resulting in highly accurate testing.

[Brief explanation of the drawing]

Fig. 1 is an overall view of the product inspection equipment, and Fig. 2 shows the flow of inspection items and inspection work for spindle heads and gear cylinders, which are representative examples of assembled products. FIG. 3 is a flowchart of data processing of inspection data. 1: Mutm inspection unit) 2: A2 jet 1 unit
5:45 Inspection unit 4: Measuring probe and sensor automatic exchange device 5: Transfer positioning device 6: Base 7: Pallet 8: Mounting jig Patent applicant Director of the Agency of Industrial Science and Technology Stone plate - ¥50 Procedural amendment () 1937? Yumi 2nd, Mr. Commissioner of the Japan Patent Office■, Indication of the case Patent Application No. 196380 of 1982 3 Person making the amendment 5, date of amendment order 1957 6 Yumi 15th Shipping date 6, 1l Invention increases due to positive Number 7, 1Il
Fi positive object (1) “Brief explanation of drawings” in the specification
(Fig. 2 of the drawings 8 Contents of the amendment (1) On page 13 of the specification, line 5, "spindle head and gear box" is amended to "spindle head (a) and gear box (b)". (2) In the application. As shown in the attached Figure 2 in the next issue, Houma Misaki Ichiban 1. High accuracy of inspection can be obtained by stabilizing the ambient temperature change of the unit. 4. Brief explanation of the drawing Figure 1 shows the product. Fig. 2 is a flowchart of the inspection items and inspection process for the spindle head plate and gear box cap, which are representative examples of assembled products. Fig. 3 is a flowchart of the data processing of inspection data. 0

Claims (1)

[Claims] Dimensions and shape accuracy of assembled products to be inspected under certain specified conditions, shape accuracy quantification device and operating conditions r It is a device consisting of an operation inspection device that is configured as a unit and performs inspections by appropriately combining nine devices singly or in multiple units.It automatically performs inspections and outputs inspection result data.1 Judgment of pass or fail and failure. A product inspection device that emulates 4I by having a cause diagnosis function.