CN203811089U - An apparatus for detecting a gap in an axial direction of an automobile inner bulb assembly - Google Patents

Abstract

The utility model relates to an axial gap detection device for an automobile inner ball joint assembly, which comprises a base, an upper plate fixedly connected above the base and supported by a column, and a driving mechanism fixedly arranged on the upper plate. The drive end of the drive mechanism is facing the base, and the drive end is provided with a threaded connection mechanism connecting the inner tie rod of the inner ball head assembly; The inner ball head seat is fixed on the locking mechanism on the base; the base is also provided with a detection mechanism for measuring the displacement of the inner tie rod relative to the inner ball head seat when the driving mechanism drives the inner tie rod to move. The detection device can realize the detection of the inner ball head assembly at the production site, which improves the work efficiency and is beneficial to the real-time control of the quality of the inner ball head assembly. The detection device is simple in structure, small in size and easy to arrange, and has good practicality.

Description

Automobile inner ball head assembly axial clearance detection device

technical field

The utility model relates to an automobile detection device, in particular to an automobile inner ball head assembly axial gap detection device.

Background technique

With the development of large-scale production of auto parts, product quality has become the most concerned indicator of many auto parts manufacturers, and the ability to guarantee quality is the core force that determines the sustainable development of an enterprise. Inner ball head products are one of the key safety parts of automobiles. This product needs to be guaranteed to be 100% qualified. If the axial clearance of the inner ball head does not meet the requirements, it will directly affect the realization of product functions, damage the transmission system, and seriously affect Driving safety, so the detection of the axial clearance of the inner ball head is an essential part. However, there is no device for on-line detection of the axial gap of the inner ball head in the enterprise. The existing gap detection is completed in the laboratory. Although the detection requirements can be met in the laboratory, the detection device used is a general-purpose tool. It is necessary to adjust the equipment repeatedly to make the top and bottom centered, and to eliminate the deformation and coaxiality deviation of the device itself in the state of tension and compression. This requires the operator to have extremely high operating skills and rich measurement experience. The method takes a long time to operate, and the result feedback is relatively lagging, which will affect the product processing efficiency, and the real-time monitoring of product quality is insufficient, which may easily cause batch problems or even accidents, and when using general tooling for gap detection, the detection distance will be too large, resulting in the The deviation of the test data caused by the deformation of the workpiece may cause the risk of losing the detection significance.

Utility model content

In order to solve the deficiencies in the prior art, the utility model provides a device for detecting the axial clearance of the inner ball joint assembly of the automobile, which can realize the detection of the inner ball joint assembly at the production site, improve the work efficiency, and effectively It is beneficial to real-time control of the quality of the inner ball head assembly, and the detection device has a simple structure, small volume and convenient arrangement, and has good practicability.

In order to achieve the above object, the automobile inner ball head assembly axial gap detection device includes a base, and an upper plate fixedly connected above the base and supported by a column, and also includes a driving mechanism fixedly arranged on the upper plate. The driving end of the driving mechanism is facing the base, and the screw connection mechanism connecting the inner tie rod of the inner ball head assembly is arranged on the driving end; The inner ball head seat is fixed on the locking mechanism on the base; the base is also provided with a detection mechanism for measuring the displacement of the inner tie rod relative to the inner ball head seat when the driving mechanism drives the inner tie rod to move.

Using the above-mentioned technical scheme, the inner tie rod of the inner ball head assembly is connected to the driving end of the driving mechanism by a threaded connection mechanism, and then the inner ball head seat of the inner ball head assembly is fixed on the base using a locking mechanism, and then The driving mechanism drives the inner tie rod to move, and since the inner ball head seat is fixed, the axial gap value of the inner ball head assembly can be known according to the displacement of the inner tie rod relative to the inner ball head seat measured by the detection mechanism. The detection device can realize the loading of the inner ball head assembly for detection through the setting of the driving mechanism, screw connection mechanism and locking mechanism between the base and the upper plate. Its structure is simple and easy to operate, thereby improving the detection efficiency. work efficiency, and the components of the detection device are also easy to manufacture and assemble, which is conducive to the layout on the production site and saves the trouble of testing in the laboratory. On the other hand, this device uses a separate detection mechanism to measure the displacement of the inner rod. The measurement can avoid the deviation of the detection result caused by the elastic deflection of the inner rod when the driving mechanism applies force to the inner rod, thereby effectively ensuring the accuracy of the detection result.

As a limitation to the above manner, the driving mechanism is a hydraulic cylinder. By using the hydraulic cylinder, the inner tie rod can be driven in the up and down directions for detection by adjusting the direction of oil in and out of the hydraulic cylinder, and the smooth movement of the hydraulic cylinder is conducive to the mastery of the detection process.

As a limitation to the above method, the threaded connection mechanism is a threaded connection sleeve fixedly connected to the driving end of the drive mechanism, and a pair of inner rods connected to the threaded connection sleeve are also provided on the inner pull rod. Pull the nut for tightening the rod. The threaded connecting sleeve can be used to connect it with the threaded end of the inner tie rod, thereby simplifying the structure of the detection device; a nut is arranged on the inner tie rod, and the inner tie rod can be tightened after being threaded into the threaded connecting sleeve, so that Ensure that the connection between the inner tie rod and the threaded connection sleeve is stable.

As a limitation to the above method, the locking mechanism includes a T-shaped slot opened on the base, a bolt movably embedded in the T-shaped slot, and a pair of inner balls pierced on the bolt. The head seat is fixed on the pressure plate. A T-shaped slot is set on the base, and the bolt with a pressure plate can move left and right in the T-shaped slot, so as to locate and lock the inner ball head seat. When the pressure plate is pressed on the bolt, the inner ball head seat can be locked Timing, the T-slot also plays a role in locking one end of the bolt. the

As a limitation to the above method, the pressure plate is divided into two pieces arranged on both sides of the inner ball head seat, and a groove matching the outer circumferential surface of the inner tie rod is also provided on the side end surface of the pressure plate close to the inner ball head seat . Setting the groove can realize more stable locking of the pressure plate to the inner ball head seat.

As a limitation to the above method, the detection mechanism is a dial indicator arranged on the base, and the measuring end of the dial indicator is in contact with the inner pull rod. When the driving mechanism drives the inner rod to move, the inner rod moves relative to the inner ball seat, that is, relative to the base. Since the dial indicator is set on the base, it can be measured by the measuring end of the dial indicator colliding with the inner rod. Measure the displacement of the inner tie rod relative to the inner ball head seat. This displacement is caused by the gap between the inner tie rod and the inner ball head seat. Therefore, the axis of the inner ball head assembly can be obtained by measuring the displacement of the inner tie rod. gap value.

As a limitation to the above method, a measuring plate is fixedly sheathed on the inner tie rod, and the measuring end of the dial gauge is in contact with the measuring plate. The measuring plate is fixedly sheathed on the inner tie rod to make the conflict between the measuring end of the dial indicator and the inner tie rod more stable.

As a limitation to the above method, the measuring plate is fixedly sleeved on the end of the inner tie rod close to the inner ball seat. The measuring plate is set near the end of the inner ball head seat to prevent the result deviation caused by the deflection and deformation of the inner tie rod, so as to ensure the accuracy and validity of the inspection value.

To sum up, the technical scheme of the utility model can be used to detect the inner ball head assembly at the production site, so as to facilitate the real-time control of the quality of the inner ball head assembly, and the detection device is simple in structure, easy to manufacture and The arrangement can avoid the deviation caused by the deflection and deformation of the inner tie rod of the inner ball joint assembly during the detection process, and has good practicability.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail:

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is a partially enlarged view of part A in Fig. 1;

In the figure: 1. base; 2. column; 3. upper plate; 4. hydraulic cylinder; 5. oil pressure gauge; 6. threaded connection sleeve; 7. inner tie rod; 8. inner ball seat; , T-slot; 11, bolt; 12, pressure plate; 13, groove; 14, measuring plate; 15, support nut; 16, dial gauge.

Detailed ways

This embodiment relates to a device for detecting the axial clearance of the inner ball head of an automobile. As shown in Figures 1 and 2, it includes a base 1 on which four uprights 2 are fixedly arranged, and upper ends of the uprights 2 are fixedly arranged on Plate 3, a hydraulic cylinder 4 is fixedly installed in the middle of the upper end surface of the upper plate 3, and an oil pressure gauge 5 is installed on the oil pipe at both ends of the hydraulic cylinder 4. The driving end of the hydraulic cylinder 4, that is, the driving rod of the hydraulic cylinder 4 passes through The through hole not shown in the figure that offers in the upper plate 3 middle part points to the base 1, and the axis of the hydraulic cylinder 4 is also perpendicular to the upper end surface of the base 1.

On the driving rod of the hydraulic cylinder 4, a threaded connection sleeve 6 is fixedly connected. The threaded connection sleeve 6 is a cylindrical structure with an internal thread hole, and the cross section of its outer peripheral surface can be circular or polygonal. It is fixed on the driving rod through threaded connection or clamping, welding and other connection methods, and its lower end is connected to the drive of the hydraulic cylinder 4 by cooperating with the external thread on the inner rod 7 in the inner ball head assembly. On the rod, a nut 9 is also arranged on the inner tie rod 7 for fastening between the inner tie rod 7 and the threaded connection sleeve 6 when the inner tie rod 7 is screwed to the threaded connection sleeve 6 .

The inner tie rod 7 in the inner ball head assembly is connected to the driving rod of the hydraulic cylinder 4 through the threaded connection sleeve 6, while the inner ball head seat 8 in the inner ball head assembly is fixed by the locking mechanism arranged on the base 1 on base 1. The locking mechanism includes a T-shaped slot 10 provided on the base 1 , a bolt 11 movably embedded in the T-shaped slot 10 , and a pressing plate 12 sleeved on the bolt 11 . The T-shaped slot 10 is located at the center of the base 1, and it is a through slot provided on the top of the base 1. The nut end of the bolt 11 can be embedded in the slot from the opening of the T-shaped slot 10 on the side end surface of the base 1. In order to ensure the locking effect on the inner ball head seat 8, the pressure plate 12 in this embodiment is divided into two pieces arranged on both sides of the inner ball head seat 8. On the bolt 11 of the inner ball head seat 8, a support nut 15 is also installed under the pressure plate 12. The support nut 15 can make the pressure plate 12 keep itself level when pressing the inner ball head seat 8, so as to ensure the The locking stability of the inner ball seat 8. A groove 13 is also arranged on the side end surface of each pressing plate 12 close to the inner tie rod 7. The grooves 13 on the pressing plates 12 on both sides are arranged oppositely. The setting can make the pressure plate 12 have better contact with the top of the inner ball seat 8, so as to realize more stable locking of the inner ball seat 8.

The detection device also includes a detection mechanism arranged on the base 1. In this embodiment, the detection mechanism is a dial indicator 16, and the dial indicator 16 is fixed on the base 1 by a mounting bracket not shown in the figure, and the dial indicator 16 The measuring end of the inner rod 7 is in contact with the processing boss surface on the inner rod 7, so as to measure the up and down movement of the inner rod 7. In order to increase the stability of the conflicting connection between the dial indicator 16 and the inner tie rod 7, to ensure that the dial indicator 16 can accurately measure the movement of the inner tie rod 7, a measuring plate 14 is also fixedly sleeved on the inner tie rod 7 to measure The plate 14 can be a circular plate with a certain thickness, and it can be locked at any position of the inner tie rod 7 by a set screw installed on the circumferential end surface. In order to prevent the deflection and deformation of the inner tie rod 7 during detection and cause the deviation of the test results, the measuring plate 14 can be fixed on the inner tie rod 7 near the end of the inner ball seat 8, and the measuring end of the dial gauge 16 is in contact with the The upper end face of the measuring board 14 .

When the detection device is in use, first set the measuring plate 14 on the inner tie rod 7, then connect the inner tie rod 7 to the threaded connection sleeve 6 through its threaded end, and tighten the nut 9 upwards, in this process to ensure that the inner The axis of the ball head assembly is perpendicular to the upper end surface of the base 1, and then the driving rod of the hydraulic cylinder 4 is moved down, and the position of the inner ball head assembly is adjusted so that the lower end of the inner ball head seat 8 fits seamlessly with the base 1, and the movement Press the plate 12 on both sides and adjust the support nuts 15 so that the plate 12 on both sides is at the same level, and the end of the plate 12 with the groove 13 is stably pressed on the top of the inner ball head seat 8, and the bolts 11 on both sides are tightened The set nut for pressing the inner ball head seat 8 on the base 1. Finally adjust the position of the measuring plate 14, fix it on the inner rod 7 close to the position of the inner ball seat 8, then install the dial indicator 16 on the base 1, and make the measuring end of the dial indicator 16 interfere with the measurement The upper end surface of the plate 14 has an appropriate amount of compression, and the detection can be started after adjusting the pointer of the dial indicator 16 to the position of the 0 scale line.

When testing, first move the drive rod of the hydraulic cylinder 4 upwards, press the oil pressure gauge 5 to the set pressure value, record the reading of the dial gauge 16 at this time, and then release the pressure of the hydraulic cylinder 4, and the pointer of the dial gauge 16 returns to zero , and then make the driving rod of hydraulic cylinder 4 move downwards, pressurize the oil pressure gauge 5 to the set pressure value, and then record the reading of dial indicator 16 at this time, and then make the hydraulic cylinder 4 release pressure detection to complete, according to the two before and after The reading of the dial indicator 16 recorded for the first time can know the axial clearance value of the inner ball head assembly.

Claims (8)

1. bulb assembly axial clearance detection device in an automobile, comprise base, and the upper plate by upright supports that is fixed on base top, it is characterized in that: also comprise the driving mechanism being fixedly installed on described upper plate, the drive end of described driving mechanism is right against base, is provided with the threaded connection of the draw-in bar that connects described interior bulb assembly on described drive end; And be installed on described base, so that the interior ball cup of interior bulb assembly is fixed on to the engaging mechanism on base; On described base, be also provided with when driving mechanism drives draw-in bar to move the testing agency that the displacement of the relatively interior ball cup of draw-in bar is measured.

2. bulb assembly axial clearance detection device in automobile according to claim 1, is characterized in that: described driving mechanism is hydraulic cylinder.

3. bulb assembly axial clearance detection device in automobile according to claim 1, it is characterized in that: described threaded connection is the threaded connecting sleeve being fixed on the drive end of described driving mechanism, and the draw-in bar being also provided with on described draw-in bar being connected in described threaded connecting sleeve carries out fastening nut.

4. bulb assembly axial clearance detection device in automobile according to claim 1, it is characterized in that: described engaging mechanism comprises the T-shaped groove being opened on described base, activity is inlaid in the bolt in T-shaped groove, and is arranged in pressing plate on described bolt, that be fixed with internal ball cup.

5. bulb assembly axial clearance detection device in automobile according to claim 4, it is characterized in that: described pressing plate is to be divided into two of described interior ball cup both sides, at pressing plate, be also provided with the groove that the outer circumference surface with draw-in bar matches near the side end face of interior ball cup.

6. bulb assembly axial clearance detection device in automobile according to claim 1, is characterized in that: described testing agency is the dial gauge being arranged on base, and the measuring junction of described dial gauge and draw-in bar are conflicted and joined.

7. bulb assembly axial clearance detection device in automobile according to claim 6, is characterized in that: on described draw-in bar, fix sheathed measurement plate, the measuring junction of described dial gauge is conflicted and joined with measurement plate.

8. bulb assembly axial clearance detection device in automobile according to claim 7, is characterized in that: described measurement plate fixed cover is located at one end of close interior ball cup on draw-in bar.