CN108627132A - A kind of multi-diameter shaft outer diameter and bore comprehensive check tool - Google Patents

Abstract

A kind of cubing for detecting multi-diameter shaft outer diameter and bore of disclosure of the invention, belongs to auto parts and components fitted position inspection technology field.The multi-diameter shaft outer diameter and bore comprehensive check tool of the present invention includes the positioning component positioned for multi-diameter shaft, is used for the feeding material component of multi-diameter shaft feeding, is used for the outside diameter measuring component of multi-diameter shaft outside diameter measuring, the hole measuring component for bore detection.Positioning component, feeding material component, outside diameter measuring component, internal diameter measurement assembly are all mounted on bottom plate.Detection tool structure provided by the invention is simple, registration, easy to operation, multi-diameter shaft outer diameter and bore measurement efficiency are high.

Description

A comprehensive inspection tool for stepped shaft outer diameter and gear inner hole

technical field

The invention relates to a checking tool for detecting the outer diameter of a stepped shaft and the inner hole of a gear, and belongs to the technical field of assembly dimension inspection of auto parts.

Background technique

At present, the outer diameter of the stepped shaft and the inner hole of the gear are mostly used in the field of auto parts. It is the inspection tool that must be used before the gear and the stepped shaft of the gearbox are assembled. The quality of assembly with the shaft plays a key role, and even has a great contribution to the gearbox noise index of the assembly. Existing testing equipment for testing the outer diameter of the stepped shaft and the inner hole of the gear, such as the utility model patent with the publication number CN 206160912 U, has a complex structure, no integrated testing equipment, and a low level of automation, so the number of processes is large , poor positioning accuracy, high labor costs, low production efficiency, and cannot be measured quickly and accurately.

Contents of the invention

Aiming at the deficiencies of the prior art, the present invention provides a comprehensive checking tool for stepped shaft outer diameter and gear inner hole with simple structure, precise positioning, convenient operation, high measurement efficiency and high measurement accuracy.

The comprehensive inspection tool for stepped shaft outer diameter and gear inner hole provided by the present invention includes a positioning assembly for positioning the stepped shaft, a feeding assembly for feeding the stepped shaft, an outer diameter measuring assembly for measuring the outer diameter of the stepped shaft, and a gear assembly for gear Bore measurement components for bore detection. The positioning component, the feeding component, the outer diameter measuring component and the inner diameter measuring component are all installed on the bottom plate.

The feeding assembly is installed in the middle and lower part of the bottom plate. Left V-shaped blocks and right V-shaped blocks are installed on the feeding assembly. The surfaces of the two V-shaped blocks are facing each other. There is a proximity switch, which is used to detect whether the stepped shaft is placed in a predetermined position. Further, there is a propulsion plate at the middle and lower part of the bottom plate, and a mounting plate under the propulsion plate. The support cylinder is installed vertically on the mounting plate. A support cylinder connector 1 and a support cylinder connector 2 are installed between the support cylinder and the propulsion plate. The linear bearing is installed on the In the hole of the push plate, the linear bearing is set on the slide rod. The lower end of the slide rod is connected to the mounting plate by screws, and the upper end of the slide rod is welded vertically to the bottom plate. The left V-shaped is installed on the left side of the push plate, and the right V-shaped is installed on the right side. The left V-shape and the right V-shape are perpendicular to the push plate, and the left V-shape and the right V-shape are equipped with proximity switches inside.

The positioning assembly is installed above the bottom plate and is provided with a left top and a right top. The left top and right top are coaxial and the axis is horizontal. The left top can rotate around the axis, and the right top can move back and forth relative to the left top. Live the stepped shaft, and the left and right tops are precisely positioned on the stepped shaft. Further, the left top is connected with the motor through a coupling, and the right top is connected with the propelling cylinder.

The outer diameter measurement assembly mainly includes an outer diameter measuring head and a gas-electric converter, the outer diameter measuring head is connected to the gas-electric converter through a gas pipe; the outer diameter measuring head is located on both sides of the stepped shaft to be measured, and the axis of the outer diameter measuring head is vertical Intersect with the axis of the stepped shaft, the outer diameter measuring head is connected to the gas-electric converter through the gas pipe, the number of outer diameter measuring components matches the number of measured dimensions of the stepped shaft, and multiple outer diameter measuring components are distributed along the axis of the stepped shaft .

The inner diameter measurement assembly is located outside the outer diameter measurement assembly and mainly includes an inner hole measuring head and a gas-electric converter. The inner hole measuring head of the inner hole measuring assembly is connected to the gas-electric converter through a gas pipe; switch, the proximity switch detects whether the gear is placed in place, the number of inner diameter measuring components matches the number of outer diameter measuring components, and the inner diameter measuring component is placed in front of the outer diameter measuring component.

In one embodiment of the present invention, standard parts and calibration parts are also arranged on the base plate.

In one embodiment of the present invention, the inspection tool further includes a warning light. It is used to compare the electrical signal of the step shaft to be tested collected by the gas-to-electric converter with the electrical signal of the pre-measured calibration piece, and send an alarm according to the comparison result.

During the working process of the inspection tool of the present invention, the two V-shaped blocks of the feeding assembly are installed on the push plate, and the cylinder is connected to the push plate to provide thrust. The stepped shaft is placed on the V-shaped block, and the cylinder goes down the V-shaped block for rough positioning. The positioning component is mainly positioned by two tops on the left and right. When measuring, the stepped shaft is clamped between the two tops. The left top is connected to the motor, and the motor generates rotational power to measure the entire circumference of the stepped shaft. The right top is connected to the cylinder. The propulsion power is provided by the cylinder, and the top is pushed to clamp the stepped shaft. Through the positioning of the movable double top, the positioning accuracy of the shaft is guaranteed. The outer diameter measuring assembly is arranged around the stepped shaft. The outer diameter measuring assembly mainly includes an outer diameter measuring head and a gas-electric converter. The outer diameter measuring head of the outer diameter measuring The air pressure signal at the diameter measuring head is converted into an electrical signal, and the electrical signal of the measuring piece is compared with the electrical signal of the standard piece to judge whether the outer diameter of the stepped shaft is qualified. The inner hole measurement component mainly includes the inner hole measuring head and the gas-electric converter. The inner hole measuring component is installed in front of the outer diameter measuring component. The air pressure signal at the outer diameter measuring head is converted into an electrical signal, and the electrical signal of the measured part is compared with the electrical signal of the standard part to judge whether the size of the inner hole of the gear is qualified.

Advantages and effects of the present invention:

The utility model patent whose publication number is CN 206160912 U adopts the top and the groove to locate the gear shaft, the gear shaft can move axially, the positioning accuracy of the top and the groove is low, and the top cannot be moved, which is inconvenient for the installation of the gear shaft; The fixed dial gauge detects the roundness of the gear shaft, but it cannot detect the size and position information at multiple shaft ends, and the reading of the dial gauge needs to be manually observed, which is not only low in measurement efficiency, but also prone to errors; the gear shaft is rotated by using gear transmission Due to the manufacturing error of the tooth part of the gear shaft and the radial force of the gear shaft, the loading position of the gear shaft will be inclined to a certain extent, which increases the measurement error.

The invention provides a simple structure, high positioning accuracy, easy operation and high measurement efficiency through the positioning of movable double tops, and the measurement of at least four points can be completed in one clamping, and the measurement accuracy is high:

1. The movable double top has high positioning accuracy, and can hold a stepped shaft with a certain length and size variation. The left top can rotate around the axis, and can perform full-circle detection of the outer diameter of the stepped shaft. The right top adopts cylinder propulsion positioning. Compared with the traditional manual moving top positioning, the positioning accuracy and detection efficiency are improved.

2. Multiple outer diameter measuring components are arranged at the stepped shaft, and the outer diameters of multiple positions can be measured with one clamping, which greatly improves the detection efficiency.

3. The gas-to-electricity conversion device is adopted, no manual reading is required, and the measurement accuracy is high and the efficiency is high.

4. It can detect the outer diameter of the stepped shaft and the inner hole of the gear at the same time, reducing the detection process and improving the detection efficiency.

Description of drawings

Fig. 1 is a structural representation of the present invention

Fig. 2 is the front sectional view of the present invention

Fig. 3 is the top view structural diagram of the present invention

Fig. 4 is the sectional view of outer diameter measuring assembly of the present invention

Figure 5 is a sectional view of the inner diameter measuring assembly of the present invention

In the figure, 1: bottom plate, 2: motor cover, 3: motor bracket, 4: motor, 5: coupling, 6: left top, 7: nut, 8: retaining ring 1, 9: angular contact ball bearing, 10: retaining ring 2, 11: end cover 1, 12: base, 13: left V-shaped, 14: proximity switch, 15: slide rod, 16: linear bearing, 17: push plate, 18: support cylinder connector 1, 19: Support cylinder connection part 2, 20: Mounting plate, 21: Support cylinder, 22: Right V-shaped, 23: Bearing mount, 24: Gasket, 25: Push cylinder, 26: Push cylinder mount, 27: Push Cylinder connector 1, 28: Push cylinder connector 2, 29: End cover 2, 30: Right top, 31: Guide piece, 32: Fixing piece, 33: Guide piece 1, 34: Slider, 35: Guide piece 2 , 37: Cage, 40: Cylinder cover, 44: Gear inner hole probe, 45: Gas connector, 46: Proximity switch, 47: Proximity switch installation, 48: Mounting seat, 49: Step shaft outer diameter probe , 53: gas-electric converter, 55: spring, 56: end cover three, 57: fixed seat, 58: sliding part, 59: end cover plate, 60: spacer, 101: stepped shaft, 102: calibration part, 103 : Calibration part, 104: Warning light, 105: Standard part, 106: Warning light.

Detailed ways

Example 1

As shown in Figures 1, 2, 3, 4, and 5, a comprehensive inspection tool for the outer diameter of the stepped shaft and the inner hole of the gear is provided, including a positioning component for positioning the stepped shaft, and a feeding component for feeding the stepped shaft. Four outer diameter measuring components for measuring the outer diameter of the stepped shaft, and four inner hole measuring components for gear inner hole detection. It can be seen that the motor 4 is installed on the motor bracket 3, the motor bracket 3 and the bottom plate 1 are connected by four bolts, the left top 6 is connected with the motor 4 through the coupling 5, and the left top 6 is installed in sequence from left to right There are nut 7, retaining ring one 8, angular contact ball bearing 9, retaining ring two 10 is installed between the angular contact bearings 9, the left top 6 and angular contact ball bearing 9 are connected by interference fit, and the left end of angular contact ball bearing 9 is installed There is an end cover 11, and the right end of the angular contact ball bearing 9 is equipped with an end cover 3 56. The end cover 11 and the end cover 3 56 are connected to the base by bolts, and the base 12 and the bottom plate 1 are connected by screws and pins. Three 56 right ends are equipped with fixed seat 57, and fixed seat 57 right ends are equipped with end cover plate 59, and end cover plate 59 is connected with fixed seat 57 by screw, and fixed seat 57 interior is equipped with spring 55 and slide member 58; Propel cylinder 25 is installed on On the propulsion cylinder mount 26, a propulsion cylinder connector one 27 and a propulsion cylinder connector two 28 are installed between the propulsion cylinder 25 and the end cover two 29, and the propulsion cylinder connector one 27 and the end cap two 29 are connected by screws, and the right top Angular contact ball bearings, retaining rings, and nuts are installed in sequence from left to right, the angular contact ball bearings are installed in the bearing mounting seat 23, a gasket 24 is installed under the bearing mounting seat 23, and the gasket 24 is installed on the slider 34 , the right side of the gasket 24 is equipped with a guide piece 33, the left side of the gasket 24 is installed with a guide piece 2 35, the guide piece 33 is placed in parallel with the guide piece 2 35, the right side of the guide piece 33 is installed with a fixing piece 32, and the bearing mounting seat Cage 37 is installed on the left side of 23, and cylinder housing 40 is installed outside the propelling cylinder 25; supporting cylinder 21 is vertically installed on the mounting plate 20, and supporting cylinder connector-18 and supporting cylinder connector are installed between supporting cylinder 21 and propulsion plate 17 219, the linear bearing 16 is installed in the hole of the push plate 17, the linear bearing 16 is set on the sliding rod 15, the lower end of the sliding rod 15 is connected to the mounting plate 20 by screws, the upper end of the sliding rod 15 is vertically welded to the bottom plate 1, and the moving plate Left V-type 13 is installed on the left side on 17, and right V-type 22 is installed on the right side, and left V-type 13 and right V-type 22 are perpendicular to mobile plate 17, and left V-type 13 and right V-type 22 interiors are equipped with proximity switch 14.

As shown in Figures 4 and 5, Figures 4 and 5 are structural schematic diagrams of the measurement components. It can be seen that the gear inner hole measuring head 44 is connected with the gas-electric converter, the gear inner hole measuring head 44 is installed on the base plate with screws, and the gear inner hole measuring head 44 is mounted on the base plate with screws. A pad 60 is installed on the inner hole measuring head 44, a proximity switch mounting part 47 is installed in the bottom plate 1, a proximity switch 46 is installed in the proximity switch mounting part 47, the proximity switch 46 is flush with the upper surface of the pad 60, and the gas joint 45 passes through the air pipe and connected to the gas-to-electric converter. The stepped shaft outer diameter measuring head 49 is connected with the gas-electric converter 53, and two mounting seats 48 are installed on the two sides of the limit block 51. The structural dimensions of the two mounting seats 48 are the same and the assembly parts on them are consistent. The diameter measuring head 49 is installed on the mounting seat 48, the stepped shaft outer diameter measuring head 49 is connected with the mounting seat 48 by pins, the axis of the stepped shaft outer diameter measuring head 49 is perpendicular to the plane of the mounting seat 48, and the stepped shaft outer diameter measuring head The axis of 49 is perpendicular to and intersects with the axis of the stepped shaft.

The technical requirements of this embodiment include: the runout of the left center 6 and the right center 30 is 0.005, and the coaxiality of the left center 6 and the right center 30 is 0.01. The size of the inner hole of the tested gear is Reduce the minimum physical size of the inner hole of the gear by 0.02-0.03mm to obtain the diameter of the four inner hole probes The diameter of the four shaft segments of the tested stepped shaft is Enlarge the maximum physical size of the corresponding shaft section by 0.02-0.03mm to obtain the hole size of the four outer diameter side heads

With the above-mentioned structure, at the beginning of the detection, the piston rod of the supporting cylinder 21 is pushed out, and then the stepped shaft 101 is placed between the left V-shaped block 13 and the right V-shaped block, and then the piston rod of the supporting cylinder 21 is retracted, and the stepped shaft 101 reaches the predetermined position. position, then push the piston rod of the cylinder 25 out, the left top 6 and the right top 30 will clamp and position the stepped shaft 101, then the motor 4 drives the left top 6 and the stepped shaft 101 to rotate, and the gas-electric converter 53 converts the air pressure signal into The electrical signal is compared with the electrical signals of the calibration piece 102 and the calibration piece 103 determined in advance, if the size is qualified, the warning light 104 is green, and the unqualified warning light 104 is red. When measuring the inner diameter of the gear, put the gear on the inner diameter measuring head 44, and the gas-to-electric converter 53 converts the air pressure signal into an electrical signal, and compares it with the electrical signal of the calibration part 105 measured in advance. If the size is qualified, the warning light 106 is green, no The pass warning light 106 is red. In summary, the spacing structure provided by the present invention is simple and easy to operate, accurate in positioning, accurate and intuitive in detection results, and high in measurement efficiency.

Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person familiar with this technology can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore The scope of protection of the present invention should be defined by the claims.

Claims (9)

1. a kind of multi-diameter shaft outer diameter and bore comprehensive check tool, which is characterized in that include the positioning group positioned for multi-diameter shaft Part is used for the feeding material component of multi-diameter shaft feeding, is used for the outside diameter measuring component of multi-diameter shaft outside diameter measuring, is detected for bore Hole measuring component；Positioning component, feeding material component, outside diameter measuring component, internal diameter measurement assembly are all mounted on bottom plate.

2. a kind of multi-diameter shaft outer diameter according to claim 1 and bore comprehensive check tool, which is characterized in that the feeding Component is mounted on the middle lower section of bottom plate, is equipped with left V-block, right V-block on feeding material component, the surface of two V-blocks faces, institute Being internally provided with close to switch for left V-block and right V-block is stated, is used for detecting whether multi-diameter shaft is placed on pre-determined bit close to switch It sets.

3. a kind of multi-diameter shaft outer diameter according to claim 1 or 2 and bore comprehensive check tool, which is characterized in that bottom plate There is a pushing plate in middle lower section, has a mounting plate, support cylinder right angle setting on a mounting board, to support cylinder and push away below pushing plate It is mounted in the hole of pushing plate into installation support cylinder connection piece one between plate and support cylinder connection piece two, linear bearing, directly Spool bearing sleeve is on slide bar, and the lower end of the slider is connect on a mounting board by screw, and slide bar upper end vertical welding is in bottom plate, pushing plate Upper left installs left V-type, the installation inside pushing plate, left V-type and right V-type of right V-type, left V-type and right V-type is installed on right side Have close to switch.

4. a kind of multi-diameter shaft outer diameter according to claim 1 or 2 and bore comprehensive check tool, which is characterized in that described Positioning component is mounted on the top of bottom plate, top equipped with the left top and right side, and the left top and right side is top to keep coaxial and axis horizontal, It is left it is top can rotate about the axis, it is right it is top can relatively left top back-and-forth motion, left and right is top to clamp multi-diameter shaft, the left side The right side is top to be accurately positioned multi-diameter shaft.

5. a kind of multi-diameter shaft outer diameter according to claim 4 and bore comprehensive check tool, which is characterized in that left top logical It crosses shaft coupling and is connected to the motor and connect, right top connection propulsion cylinder.

6. a kind of multi-diameter shaft outer diameter according to claim 1 or 2 and bore comprehensive check tool, which is characterized in that described Outside diameter measuring component includes mainly outer diameter gauge head and pneumatic-to-current converter, and outer diameter gauge head is connected to pneumatic-to-current converter by tracheae；Outside Diameter gauge head is located at the both sides of multi-diameter shaft to be measured, the axis and intersection of the axis of outer diameter gauge head perpendicular to multi-diameter shaft, and outer diameter gauge head is logical It crosses tracheae and is connected to pneumatic-to-current converter, the number that number and the multi-diameter shaft of outside diameter measuring component measure size matches, multiple outer Diameter measurement assembly prolongs the distribution of multi-diameter shaft axis.

7. a kind of multi-diameter shaft outer diameter according to claims 1 or 2 or 6 and bore comprehensive check tool, which is characterized in that institute The outside that internal diameter measurement assembly is located at outside diameter measuring component is stated, includes mainly endoporus gauge head and pneumatic-to-current converter, hole measuring group The endoporus gauge head of part is connected to pneumatic-to-current converter by tracheae；Internal diameter measurement assembly is internally provided with close to switch, described close Whether switch detection gear is in place, and the number and the number of outside diameter measuring component of internal diameter measurement assembly match, and internal diameter is surveyed Amount component is placed in the front of outside diameter measuring component.

8. according to a kind of any described multi-diameter shaft outer diameter of claims 1 to 3 and bore comprehensive check tool, which is characterized in that Standard component, calibrating device are additionally provided on the bottom plate.

9. according to a kind of any described multi-diameter shaft outer diameter of claim 1~8 and bore comprehensive check tool, which is characterized in that The cubing further includes alarm lamp.