Hub bearing position spacing measuring device

Abstract

The invention relates to a hub bearing position spacing measuring device, which comprises a measuring tool, a lower lifting mechanism, an upper pressing structure and a bracket, and is characterized in that the lower lifting mechanism and the upper pressing structure are respectively arranged on the bracket, and the measuring tool is arranged on the lower lifting mechanism; an object is placed on the measuring tool, the lower lifting mechanism abuts against or pushes the object to move upwards, and the upper pressing structure presses the object and presses the measuring tool downwards at the same time for measurement. The hub bearing position spacing is measured through the measuring tool, the measured bearing position spacing of a standard part is referenced and compared, qualified products can be conveniently screened, the hub bearing position spacing measuring device is simple in structure, high in production efficiency, low in cost and high in safety, the problem of existing manual measurement is solved, and the hub bearing position spacing measuring device is suitable for large-scale popularization and application. And the labor intensity of an operator is greatly reduced.

Description

Technical Field

[0001] The invention relates to a measuring device, in particular to a wheel hub bearing spacing measuring device. Background Art

[0002] After the wheel hub is processed, the distance between the inner and outer bearing mounting end faces needs to be detected. The current detection technology is to manually measure with a normal micrometer and manually record the data after the measurement. This detection method is inefficient, affected by human factors, and has large errors. Summary of the invention

[0003] The technical problem to be solved by the present invention is: a wheel hub bearing spacing measuring device to solve the above-mentioned shortcomings of the prior art such as low efficiency, human influence and large error.

[0004] The technical solution to solve the above technical problems is: a wheel hub bearing spacing measuring device, characterized in that: it includes a measuring tool, a lower lifting mechanism, an upper clamping structure and a bracket, the lower lifting mechanism and the upper clamping structure are respectively arranged on the bracket, and the measuring tool is arranged on the lower lifting mechanism; an object is placed on the measuring tool, the object is supported or pushed up to a certain height by the lower lifting mechanism, the object is clamped by the upper clamping structure and the measuring tool is pressed down at the same time for measurement.

[0005] A further technical solution of the present invention is: Testing method: Step A. First place the standard part on the measuring tool on the lower lifting mechanism, and push the measuring tool up to the set height through the lower lifting mechanism, and the upper clamping structure presses down. The upper clamping structure presses the measuring tool downward during the downward pressing process until the upper clamping structure clamps the standard part. At this time, the distance the measuring tool moves downward is the distance between the upper and lower bearing positions of the standard part; Step B. According to the method of step A, place the measuring part on the measuring tool for measurement, measure the distance between the upper and lower bearing positions of the measuring part, and compare it with the distance between the upper and lower bearing positions of the standard part in step A to determine whether the measuring part is qualified or not. When the distance between the upper and lower bearing positions of the measuring part is the same as the distance between the upper and lower bearing positions of the standard part, or the distance between the upper and lower bearing positions of the measuring part is within the qualified range of the distance between the upper and lower bearing positions of the standard part, it means that the measuring part is qualified; otherwise, it means that the measuring part is unqualified. The qualified range is within the conventional allowable error range of the distance between the upper and lower bearing positions of the standard part.

[0006] The measuring tool includes a measuring head mounting seat, a push rod, a pressure head, a displacement sensor and a sensor mounting seat, wherein the displacement sensor is mounted in the measuring head mounting seat through the sensor mounting seat, the pressure head is arranged on the measuring head mounting seat, the push rod is arranged in the pressure head, the lower end of the push rod is connected to the displacement sensor, a spring is arranged at the lower end of the push rod, one end of the spring is connected to the push rod, the other end of the spring is connected to the sensor mounting seat, and the lower end of the push rod is connected to the sensor head. The measuring tool also includes a bushing and a linear bearing, wherein the push rod is arranged in the pressure head through the bushing and the linear bearing.

[0007] The testing method for the spacing between the upper and lower bearing positions of the wheel hub: the measuring tool includes a push rod and a displacement sensor, the displacement sensor is connected to the push rod, the upper clamping structure includes a clamping head and a clamping plate, the clamping head is arranged on the clamping plate, the wheel hub is placed on the lower clamping head, and the lower lifting mechanism pushes the measuring tool to move upward, the plane of the lower clamping head contacts the mounting end face of the outer bearing of the wheel hub, and then the wheel hub is lifted to the specified position, and the upper clamping structure drives the clamping head to move downward, the clamping head touches and squeezes the push rod, and when the clamping plate contacts and clamps the mounting end face of the inner bearing of the wheel hub, the push rod stops moving downward, and the upper clamping head pushes the displacement sensor through the push rod to obtain the downward distance of the push rod, which is the distance between the upper and lower bearing positions of the wheel hub.

[0008] The bracket includes an upper mounting plate, a lower mounting plate and a base, the lower mounting plate is arranged on the base, and the upper mounting plate and the lower mounting plate are connected by a column. The lower lifting mechanism includes a measuring head mounting plate and a self-locking cylinder, the measuring head mounting seat is arranged on the measuring head mounting plate, and the measuring head mounting plate is connected to the self-locking cylinder. The upper clamping structure includes an upper clamping tool, a clamping mounting plate and a clamping cylinder, the upper clamping tool is connected to the clamping cylinder through the clamping mounting plate, the upper clamping tool includes a clamping head and a clamping plate, and the clamping head is arranged on the clamping plate.

[0009] It also includes a conveyor line, which is used to convey the measuring piece. The conveyor line is arranged above the upper mounting plate, between the upper mounting plate and the lower mounting plate, and has a passage for the measuring tool to pass through. The conveyor line includes a transmission chain plate and a tray, which is arranged on the transmission chain plate, and the measuring piece is placed on the tray. It is convenient to transfer the measuring piece to the measuring tool through the transmission chain plate, and a sensor is arranged on the transmission chain plate to facilitate positioning.

[0010] Due to the adoption of the above technical solution, a hub bearing spacing measuring device of the present invention has the following beneficial effects: 1. The present invention measures the wheel hub bearing spacing by a measuring tool, and compares it with the measured bearing spacing of a standard part, so as to facilitate screening to obtain qualified products. The wheel hub bearing spacing measuring device of the present invention has a simple structure, high production efficiency, low cost, and high safety, which solves the problem of existing manual measurement and greatly reduces the labor intensity of the operator.

[0011] 2. The present invention can be directly used in the wheel hub processing production line because of its low cost, high return and broad market prospects. After being put into use, it has produced certain economic benefits. After improvement, it can automatically detect the spacing between wheel hub bearings and improve the level of automation. The present invention is simple to use and install, improves the automation, reliability and stability of production, and reduces the labor intensity of workers. It has been proved through actual use that the efficiency of detecting the spacing between wheel hub bearings has been greatly improved, and the level of automation has also been improved, achieving the purpose of reducing staff and increasing efficiency.

[0012] 3. The present invention has a simple structure and reduces the equipment procurement cost. The equipment cost is only 60,000 yuan, and the operator employment cost is 120,000 yuan / year, which greatly reduces the labor cost. At the same time, it strengthens the upgrading of enterprise technology, accelerates the development prospects of the enterprise itself, and improves social competitiveness.

[0013] The technical features of a hub bearing spacing measuring device of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 : Schematic diagram of the structure of the measuring tool.

[0015] Figure 2 : Schematic diagram of the structure of the lifting mechanism below.

[0016] Figure 3 : Structural diagram of the upper compression structure.

[0017] Figure 4 : A schematic structural diagram of a wheel hub bearing spacing measuring device.

[0018] Figure 5 : A schematic structural diagram of a wheel hub bearing spacing measuring device.

[0019] Figure 6 : A schematic diagram of the use status of a wheel hub bearing spacing measuring device.

[0020] Figure 7 : A schematic diagram of the use status of a wheel hub bearing spacing measuring device (measuring status).

[0021] In the above drawings, the descriptions of the reference numerals are as follows: 1-push rod, 2-lower pressure head, 3-bushing, 4-linear bearing, 5-spring, 6-displacement sensor, 7-sensor mounting seat, 8-measuring head mounting seat, 9-self-locking cylinder, 10-measuring head mounting plate, 11-guide rod, 12-lower mounting plate, 13-first linear bearing, 14-limit block, 15-upper clamping tooling, 16-clamping cylinder, 17-guide column, 18-second linear bearing, 19-pressing mounting plate, 20-adapter block, 21-floating joint, 22-upper mounting plate, 23-column, 24-base, 25-conveyor line, 26-hub, 27-tray. DETAILED DESCRIPTION

[0022] A wheel hub bearing spacing measuring device includes a measuring tool, a lower lifting mechanism, an upper clamping structure, a bracket and a conveyor line. The lower lifting mechanism and the upper clamping structure are respectively arranged on the bracket, and the measuring tool is arranged on the lower lifting mechanism. An object is placed on the measuring tool, and the object is supported or pushed up to a certain height by the lower lifting mechanism, and the object is moved down and clamped by the upper clamping structure, and the measuring tool is pressed down to perform measurement. The bracket includes an upper mounting plate 22, a lower mounting plate 12 and a base 24. The lower mounting plate is arranged on the base, and the upper mounting plate and the lower mounting plate are connected by a column 23. The conveyor line 25 is used to convey the measuring piece. The object or the measuring piece is transferred to the upper part of the measuring tool through the conveyor line, and can be automatically transferred and measured to improve efficiency. The conveyor line is arranged above the upper mounting plate, and the conveyor line is located between the upper mounting plate and the lower mounting plate. The conveyor line is provided with a through hole for the measuring tool to pass through.

[0023] Test method: Step A. First place the standard part on the measuring tool on the lower lifting mechanism, and use the lower lifting mechanism to support or push the measuring tool to the set height. The upper clamping structure presses down, and the upper clamping structure touches the measuring tool during the downward pressing process, and presses the measuring tool downward until the upper clamping structure clamps the standard part. At this time, the distance the measuring tool moves downward is the distance between the upper and lower bearing positions of the standard part; Step B. According to the method of step A, place the measuring part on the measuring tool for measurement, measure the distance between the upper and lower bearing positions of the measuring part, and compare it with the distance between the upper and lower bearing positions of the standard part in step A to determine whether the measuring part is qualified. When the distance between the upper and lower bearing positions of the measuring part is the same as that of the upper and lower bearing positions of the standard part, or the distance between the upper and lower bearing positions of the measuring part is within the qualified range of the distance between the upper and lower bearing positions of the standard part, it means that the measuring part is qualified; otherwise, it means that the measuring part is unqualified. The qualified range is within the normal allowable error range of the distance between the upper and lower bearing positions of the standard part.

[0024] The testing method for the distance between the upper and lower bearing positions of the wheel hub: the measuring tool includes a push rod and a displacement sensor, the displacement sensor is connected to the push rod, the upper clamping structure includes a clamping head and a clamping plate, the clamping head is arranged on the clamping plate, the wheel hub is placed on the lower clamping head, and the lower lifting mechanism pushes the measuring tool to move upward, the plane of the lower clamping head contacts the mounting end face of the outer bearing of the wheel hub, and then the wheel hub is lifted to the specified position, and the upper clamping structure drives the clamping head to move downward, the clamping head touches and squeezes the push rod, and when the clamping plate contacts and clamps the mounting end face of the inner bearing of the wheel hub, the push rod stops moving downward, and the upper clamping head pushes the displacement sensor through the push rod, and the downward distance of the push rod is obtained through the displacement sensor, and this distance is the distance between the upper and lower bearing positions of the wheel hub.

[0025] The measuring tool includes a measuring head mounting seat 8, a push rod 1, a lower pressure head 2, a displacement sensor 6 and a sensor mounting seat 7. The displacement sensor is installed in the measuring head mounting seat through the sensor mounting seat. The sensor mounting seat is fixedly arranged in the measuring head mounting seat, and the displacement sensor is arranged on the sensor mounting seat. The lower pressure head is arranged on the measuring head mounting seat, the push rod is arranged in the lower pressure head, the lower end of the push rod is connected to the displacement sensor, the lower end of the push rod is provided with a spring 5, one end of the spring is connected to the push rod, the other end of the spring is connected to the sensor mounting seat, and the lower end of the push rod is connected to the head of the sensor. When in use, the measuring piece is placed on the lower pressure head, the upper clamping structure presses the push rod, the push rod moves downward under the action of external force, the spring recovers when the external force is removed and drives the push rod to move upward, the push rod drives the sensor head to telescopically move, and the wheel hub bearing position spacing is tested through the displacement sensor.

[0026] The measuring tool also includes a bushing 3 and a linear bearing 4. The push rod is arranged in the lower pressure head through the bushing and the linear bearing. The lower pressure head is a hollow structure. The lower pressure head is penetrated with a push rod mounting hole. The bushing is sleeved in the hole of the hollow structure of the lower pressure head. The linear bearing is sleeved in the bushing. The push rod is sleeved in the linear bearing. The push rod can move along the linear bearing. The head of the displacement sensor used for measurement can be located at the lower end of the hollow hole of the lower pressure head and connected to the push rod. The measuring head mounting seat is a hollow structure. The sensor mounting seat is fixedly mounted on the measuring head mounting seat, and the displacement sensor is mounted on the sensor mounting seat. A push rod displacement hole can be opened on the sensor mounting seat. The measuring end (head) of the displacement sensor is placed in the push rod displacement hole and connected to the push rod above it. The push rod can move along the push rod displacement hole.

[0027] The lower lifting mechanism includes a measuring head mounting plate 10 and a self-locking cylinder 9. The measuring head mounting seat (bolted or welded) is arranged on the measuring head mounting plate. The measuring head mounting plate is connected to the self-locking cylinder. A measuring head through hole is provided on the lower mounting plate 12. A connecting plate is connected to the lower mounting plate through a connecting column. A guide rod through hole is provided on the connecting plate. A guide rod 11 is provided on the measuring head mounting plate. The guide rod passes through the guide rod through hole and can move along the guide rod through hole. The guide rod can play a guiding role. For the convenience of use, a linear bearing 13 is provided on the connecting plate, and a limit block 14 is provided on the guide rod 11.

[0028] The upper clamping structure includes an upper clamping tool 15, a clamping mounting plate 19 and a clamping cylinder 16. The upper clamping tool is connected to the clamping cylinder through the clamping mounting plate. The upper clamping tool includes a clamping head and a clamping plate. The clamping head is arranged on the clamping plate. The upper clamping tool is connected to the clamping cylinder through an adapter block 20 and a floating joint 21. A guide column 17 is arranged on the clamping mounting plate. A guide column is provided on the upper mounting plate. The guide column passes through the guide column through hole and can move along the guide column through hole to play a guiding role. The guide column 17 is arranged on the lower mounting plate through a linear bearing 18.

[0029] The conveyor line includes a transmission chain plate and a pallet. The pallet is set on the transmission chain plate, and the measuring piece is placed on the pallet. The measuring piece is transmitted to the top of the measuring tool through the transmission chain plate. Sensors are provided on the transmission chain plate to facilitate positioning.

[0030] Method for measuring the bearing mounting end face spacing: tray 27 is placed on the transmission chain plate, and the wheel hub 26 is placed on tray 27. After the conveyor line transports the tray and the wheel hub on the tray to the specified position, the sensor sends a signal, and the self-locking cylinder below extends, driving the pressure head and the push rod to move upward. The plane of the pressure head contacts the outer bearing mounting end face of the wheel hub, and then lifts the wheel hub. After reaching the specified position, the cylinder is locked. After the self-locking cylinder 9 at the bottom is completed, the clamping cylinder 16 at the top extends out, driving the upper pressure head (the clamping head of the upper clamping tool) to move downward, and the upper pressure head will squeeze the push rod of the lower measuring head. When the upper pressure head plane (the clamping plate of the upper clamping tool) contacts the bearing mounting end face in the wheel hub, the workpiece is clamped and positioned. During this process, the upper pressure head pushes the displacement sensor through the push rod, and the distance the push rod moves downward can be obtained. This distance is the distance between the upper and lower bearing positions of the wheel hub; specifically, during the process of the upper pressure head plane contacting the wheel hub bearing mounting end face, the upper pressure head will squeeze the push rod of the lower measuring head, and the push rod moves and drives the displacement sensor to move, and then the distance between the bearing mounting end faces is measured through the displacement sensor. After the measurement is completed, the upper and lower cylinders retract and return to their positions, and the wheel hub returns to the positioning tray and flows to the next station.

Claims

1. A wheel hub bearing spacing measuring device, characterized in that: It includes a measuring tool, a lower lifting mechanism, an upper clamping structure and a bracket, wherein the lower lifting mechanism and the upper clamping structure are respectively arranged on the bracket, and the measuring tool is arranged on the lower lifting mechanism; The object is placed on the measuring tool, and the object is supported or pushed upward by the lifting mechanism below. The object is pressed by the clamping structure above and the measuring tool is pressed down at the same time for measurement.

2. A wheel hub bearing spacing measuring device according to claim 1, characterized in that: Test method: Step A. First place the standard part on the measuring tool on the lower lifting mechanism, and use the lower lifting mechanism to push the measuring tool up to the set height. The upper clamping structure presses down, and the upper clamping structure presses the measuring tool downward during the downward pressing process until the upper clamping structure clamps the standard part. At this time, the downward distance of the measuring tool is the distance between the upper and lower bearing positions of the standard part; Step B. According to the method in step A, place the measuring part on the measuring tool for measurement, measure the distance between the upper and lower bearing positions of the measuring part, and compare it with the distance between the upper and lower bearing positions of the standard part in step A to determine whether the measuring part is qualified.

3. The wheel hub bearing spacing measuring device according to claim 1, characterized in that: The measuring tool includes a measuring head mounting seat, a push rod, a pressure head, a displacement sensor and a sensor mounting seat. The displacement sensor is installed in the measuring head mounting seat through the sensor mounting seat. The pressure head is arranged on the measuring head mounting seat. The push rod is arranged in the pressure head. The lower end of the push rod is connected to the displacement sensor. A spring is arranged at the lower end of the push rod. One end of the spring is connected to the push rod, and the other end of the spring is connected to the sensor mounting seat. The lower end of the push rod is connected to the sensor head.

4. A wheel hub bearing spacing measuring device according to claim 3, characterized in that: The measuring tool also includes a bushing and a linear bearing, and the push rod is arranged in the lower pressure head through the bushing and the linear bearing.

5. The wheel hub bearing spacing measuring device according to claim 1, characterized in that: The lower lifting mechanism comprises a measuring head mounting plate and a self-locking cylinder. The measuring head mounting seat is arranged on the measuring head mounting plate, and the measuring head mounting plate is connected to the self-locking cylinder.

6. The wheel hub bearing spacing measuring device according to claim 1, characterized in that: The upper clamping structure includes an upper clamping tool, a clamping mounting plate and a clamping cylinder. The upper clamping tool is connected to the clamping cylinder through the clamping mounting plate. The upper clamping tool includes a clamping head and a clamping plate. The clamping head is arranged on the clamping plate.

7. The wheel hub bearing spacing measuring device according to claim 1, characterized in that: The bracket comprises an upper mounting plate, a lower mounting plate and a base, the lower mounting plate is arranged on the base, and the upper mounting plate and the lower mounting plate are connected by a column.

8. The wheel hub bearing spacing measuring device according to claim 1, characterized in that: The testing method for the spacing between the upper and lower bearing positions of the wheel hub: the measuring tool includes a push rod and a displacement sensor, the displacement sensor is connected to the push rod, the upper clamping structure includes a clamping head and a clamping plate, the clamping head is arranged on the clamping plate, the wheel hub is placed on the lower clamping head, and the lower lifting mechanism pushes the measuring tool to move upward, the plane of the lower clamping head contacts the mounting end face of the outer bearing of the wheel hub, and then the wheel hub is lifted to the specified position, and the upper clamping structure drives the clamping head to move downward, the clamping head touches and squeezes the push rod, and when the clamping plate contacts and clamps the mounting end face of the inner bearing of the wheel hub, the push rod stops moving downward, and the upper clamping head pushes the displacement sensor through the push rod to obtain the downward distance of the push rod, which is the distance between the upper and lower bearing positions of the wheel hub.

9. The wheel hub bearing spacing measuring device according to claim 1, characterized in that: It also includes a conveyor line, which is used to convey the measuring piece. The conveyor line is located between the upper mounting plate and the lower mounting plate, and a through hole is provided on the conveyor line for the measuring tool to pass through.

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