Rapid and accurate steering knuckle bearing hole position accuracy testing fixture

Abstract

The utility model provides a quick and accurate steering knuckle bearing hole position accuracy testing fixture, which comprises a Z-direction positioning block, a centering stop block, a dial indicator, a dial indicator seat and a bottom plate. The utility model provides a quick and accurate knuckle bearing hole position degree gauge, through the mutual cooperation of the Z-direction positioning block, the centering stop block, the dial indicator, the dial indicator seat and the bottom plate, the knuckle bearing hole position degree on-line detection efficiency is significantly improved, the gauge is simple in structure, low in cost, capable of measuring an accurate position degree value, simple in detection method, and high in practicability. The mastering is easy.

Description

TECHNICAL FIELD

[0001] The utility model relates to steering knuckle bearing hole position degree detection technical field especially relates to a kind of fast and accurate steering knuckle bearing hole position degree testing fixture. BACKGROUND

[0002] Steering knuckle is one of the important parts of automobile, its role is to transmit and bear the load of automobile, bearing hole on steering knuckle is used to install hub bearing outer ring, generally bearing hole and blank center have less than 0.5 position degree requirement, purpose is to make bearing hole on steering knuckle and other connecting rod holes are on blank theoretical geometric center, ensure that the strength of each part of steering knuckle meets design requirements.

[0003] Connecting rod hole on steering knuckle is processed with bearing hole as reference, once bearing hole deviates from blank center, it will also lead to the deviation of other holes, so controlling steering knuckle bearing hole position degree is very important, generally accurate measurement steering knuckle bearing hole position degree needs to use three coordinate instrument, in-line detection adopts scribe or measures wall thickness difference using vernier caliper, both belong to rough measurement, cannot measure accurate data.

[0004] Current steering knuckle bearing hole position degree detection has problem, offline accurate measurement relies on three coordinate instrument inconvenient real-time operation, in-line detection adopts scribe or vernier caliper to measure wall thickness difference can only be roughly measured, cannot meet the urgent requirement of quick and accurate in-line detection of manufacturing factory under the performance improvement demand of automobile manufacturer to steering knuckle.

[0005] Therefore, it is necessary to provide a kind of fast and accurate steering knuckle bearing hole position degree testing fixture to solve the above technical problems. SUMMARY

[0006] The utility model provides a kind of fast and accurate steering knuckle bearing hole position degree testing fixture, solve the current steering knuckle bearing hole position degree detection has problem, offline accurate measurement relies on three coordinate instrument inconvenient real-time operation, in-line detection adopts scribe or vernier caliper to measure wall thickness difference can only be roughly measured, cannot meet the urgent requirement of quick and accurate in-line detection of manufacturing factory under the performance improvement demand of automobile manufacturer to steering knuckle.

[0007] To solve the above technical problems, the utility model provides a kind of fast and accurate steering knuckle bearing hole position degree testing fixture, it includes: Z direction locating block, centering stop block, dial gauge, dial gauge seat and bottom plate;

[0008] The Z direction locating block is fixed on the surface of the bottom plate by four bolts, the outer edge of the upper end surface is in contact with the bottom of the steering knuckle bearing hole, so that the steering knuckle is placed horizontally, two thread holes for installing the centering stop block are left on the upper end surface of the Z direction locating block at a certain angle, and a hole for installing the dial gauge seat is left on the upper end surface of the Z direction locating block.

[0009] Two said centering blocks are respectively installed on the upper end surface of the Z-direction positioning block, and are used for centering the knuckle bearing hole.

[0010] The dial seat is connected to the upper end surface of the Z-direction positioning block 1 through bolts, and is used for fixing the dial.

[0011] The dial is installed in the open slot hole on the dial seat, and is used for displaying the relative distance of the knuckle blank cone surface to a fixed point.

[0012] The bottom plate is the base of the gauge, and the weight of the bottom plate can ensure that the gauge does not move when the knuckle is pushed and rotated during detection.

[0013] Preferably, the Z-direction positioning block is arranged on the top of the bottom plate through bolts, so as to keep the knuckle horizontal.

[0014] Preferably, the centering block is installed on the upper end surface of the Z-direction positioning block, and the two centering blocks are distributed at an angle, and are used for positioning the center of the knuckle bearing hole.

[0015] Preferably, the dial is installed in the open slot hole of the dial seat, and the lateral locking bolt is tightened to limit the dial.

[0016] Preferably, the two sides of the top of the bottom plate are fixedly provided with mounting components, the mounting components include mounting blocks, sliding grooves, moving grooves, sliding rods and elastic members, the inside of the mounting components is slidably provided with limiting components, the limiting components include moving blocks, extrusion blocks and clamping blocks, and the two sides of the outer surface of the Z-direction positioning block are provided with clamping grooves.

[0017] Preferably, the mounting block is fixedly installed on the top of the bottom plate, the sliding groove is arranged in the middle of one side of the mounting block, the moving groove is arranged in the middle of the inner cavity wall top of the sliding groove, the sliding rod is fixedly installed in the inside of the moving groove, and the elastic member is sleeved on one side of the outer surface of the sliding rod.

[0018] Preferably, the moving block is slidably installed in the inside of the sliding groove, the extrusion block is fixedly installed on one side of the surface of the moving block, and the clamping block is fixedly installed on the other side of the moving block.

[0019] Compared with the related art, the knuckle bearing hole position gauge provided by the present application has the following beneficial effects:

[0020] This invention provides a fast and accurate steering knuckle bearing hole position gauge. It utilizes a Z-axis positioning block, a centering stop, a dial indicator, a dial indicator base, and a base plate in cooperation. By manually pushing the steering knuckle, the shoulder hole contacts the outer diameter of the two centering stops, and the measuring head contacts the surface of the conical hole in the steering knuckle blank. The measuring rod length is adjusted to pre-compress the dial indicator by approximately 1 mm. The locking thread on the side of the dial indicator base is tightened to fix the dial indicator. The steering knuckle is rotated one revolution, and the dial indicator needle values ​​at each of the four quadrants are recorded. The position of the bearing hole relative to the center of the blank can then be calculated. This device has a simple structure, is highly practical, and significantly improves the efficiency of online steering knuckle bearing hole position detection. The gauge is simple in structure, low in cost, and can measure accurate position values. The detection method is simple and easy to master. Attached Figure Description

[0021] Figure 1 A schematic diagram of the first embodiment of a fast and accurate steering knuckle bearing hole position gauge provided by this utility model;

[0022] Figure 2 for Figure 1 The diagram shows a side sectional view of the base plate.

[0023] Figure 3 for Figure 1 The diagram shows the Z-axis positioning block structure.

[0024] Figure 4 for Figure 1 The diagram shows the structure of the centering block.

[0025] Figure 5 for Figure 1 The diagram shown is a schematic of the dial gauge structure.

[0026] Figure 6 for Figure 1 The diagram shows the structure of the dial indicator base;

[0027] Figure 7 for Figure 1 The diagram shows the base plate structure.

[0028] Figure 8 for Figure 1 The diagram shows a top view of the base plate.

[0029] Figure 9 A schematic diagram of the second embodiment of a fast and accurate steering knuckle bearing hole position gauge provided by this utility model;

[0030] Figure 10 for Figure 9 The enlarged schematic diagram at point A is shown.

[0031] In the figure, the labels are as follows: 1, Z-direction positioning block, 2, centering stop block, 3, dial indicator, 4, dial indicator seat, 5, base plate, 6, mounting component, 61, mounting block, 62, sliding groove, 63, moving groove, 64, sliding rod, 65, elastic member, 7, limiting component, 71, moving block, 72, extrusion block, 73, clamping block, 8, clamping groove. DETAILED DESCRIPTION

[0032] The utility model will be further described below in combination with the drawings and embodiments.

[0033] First embodiment

[0034] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 , wherein, Figure 1 is a structure schematic view of a first embodiment of a quick and accurate steering knuckle bearing hole position degree gauge provided by the utility model; Figure 2 is a base plate side view cross-sectional view schematic diagram shown in Figure 1 ; Figure 3 is a Z-direction positioning block structure schematic diagram shown in Figure 1 ; Figure 4 is a centering stop block structure schematic diagram shown in Figure 1 ; Figure 5 is a dial indicator structure schematic diagram shown in Figure 1 ; Figure 6 is a dial indicator seat structure schematic diagram shown in Figure 1 ; Figure 7 is a base plate structure schematic diagram shown in Figure 1 ; Figure 8 is a base plate top view schematic diagram shown in Figure 1 . A quick and accurate steering knuckle bearing hole position degree gauge comprises a Z-direction positioning block 1, a centering stop block 2, a dial indicator 3, a dial indicator seat 4 and a base plate 5;

[0035] The Z-direction positioning block 1 is fixed on the surface of the base plate through four bolts, the upper end face outer edge thereof is in contact with the bottom of the steering knuckle bearing hole, the steering knuckle is placed horizontally, two screw holes for installing the centering stop block are left on the upper end face of the Z-direction positioning block 1 at a certain angle, and one hole for installing the dial indicator seat 4 is left;

[0036] Two centering stop blocks 2 are installed on the upper end face of the Z-direction positioning block 1 respectively, and are used for centering the steering knuckle bearing hole;

[0037] The dial indicator seat 4 is connected to the upper end face of the Z-direction positioning block 1 through bolts, and is used for fixing the dial indicator 3;

[0038] The dial gauge 3 is installed in the open slot hole of the dial gauge seat 4 to display the relative distance of the knuckle blank cone surface to a fixed point.

[0039] The bottom plate 5 is the base of the gauge, and its weight can ensure that the gauge does not move when pushing and rotating the knuckle during detection.

[0040] The Z-direction positioning block 1 is arranged on the top of the bottom plate 5 through bolts to keep the knuckle horizontal.

[0041] The centering stopper 2 is installed on the upper end surface of the Z-direction positioning block 1, and two centering stoppers 2 are distributed at an angle to position the center of the knuckle bearing hole.

[0042] The dial gauge 3 is installed in the open slot hole of the dial gauge seat 4, and the lateral locking bolt is tightened to limit the dial gauge 3.

[0043] The Z-direction positioning block 1 is a horizontal support structure of the knuckle, which is installed on the bottom plate 5 and fixed by bolts; the two centering stoppers 2 are centering structures of the knuckle bearing hole, which are installed on the upper end surface of the Z-direction positioning block 1 and fixed by the threads on one end; the dial gauge seat 4 is used for installing and fixing the dial gauge 3, which is installed on the upper end surface of the Z-direction positioning block 1 and fixed by bolts.

[0044] The Z-direction positioning block 1 is a circular boss with a diameter slightly smaller than the knuckle bearing hole, and there is a certain movement space when the knuckle bearing hole is sleeved therein, and the positioning block only limits the Z-direction freedom degree of the knuckle.

[0045] The two centering stoppers 2 are distributed at an angle on the upper end surface of the Z-direction positioning block 1, and the inner wall of the shaft shoulder hole and the outer circle of the centering stopper 2 are contacted by pushing the knuckle by hand, which plays a centering role.

[0046] The dial gauge seat 4 is designed at an angle according to the taper angle of the blank taper hole, and the dial gauge 3 mounting hole and the locking slot are opened thereon, and the lateral locking thread is used for installing and fixing the dial gauge 3.

[0047] The working principle of the knuckle bearing hole position degree gauge provided by the utility model is as follows:

[0048] In work, first, the Z-direction positioning block 1 is installed on the bottom plate 5 and fixed by bolts; the two centering stoppers 2 are installed on the Z-direction positioning block 1 and fixed by the threads on one end of the stopper; the dial gauge seat 4 is installed on the Z-direction positioning block 1 and connected by bolts; the dial gauge 4 is installed in the dial gauge seat 4 mounting hole;

[0049] The bearing hole of the steering knuckle to be detected is sleeved into the Z-direction positioning block 1, the steering knuckle is pushed by hand to make the shaft shoulder hole and the outer circles of the two centering stop blocks 2 contact, and the measuring head contacts the surface of the taper hole of the steering knuckle blank, the length of the measuring rod is adjusted, the dial gauge 3 is displayed to be pre-compressed by about 1mm, the locking screw threads on the side of the dial gauge seat 4 are locked, and the dial gauge 3 is fixed; the steering knuckle is rotated by hand for one circle, the contact between the shaft shoulder hole of the steering knuckle and the two centering stop blocks 2 is ensured during the process, the dial needle values of the steering knuckle at the four quadrant points are recorded, and the position degree is calculated.

[0050] Compared with the related art, the utility model provides a kind of fast and accurate steering knuckle bearing hole position degree gauge has the following beneficial effects:

[0051] The utility model provides a kind of fast and accurate steering knuckle bearing hole position degree gauge, through Z-direction positioning block 1, centering stop block 2, dial gauge 3, dial gauge seat 4 and bottom plate 5 mutual cooperation, the steering knuckle is pushed by hand to make the shaft shoulder hole and the outer circles of the two centering stop blocks 2 contact, and the measuring head contacts the surface of the taper hole of the steering knuckle blank, the length of the measuring rod is adjusted, the dial gauge 3 is displayed to be pre-compressed by about 1mm, the locking screw threads on the side of the dial gauge seat 4 are locked, and the dial gauge 3 is fixed, rotates the steering knuckle for one circle, respectively records the dial needle values of the steering knuckle 4 quadrant points, can calculate the position degree of bearing hole relative to blank center, and the device structure is simple, and practicality is strong, has significantly improved steering knuckle bearing hole position degree online detection efficiency, gauge structure is simple, and cost is low, can measure accurate position degree value, and detection method is simple, easy to master.

[0052] Second embodiment

[0053] Please refer to Figure 9 And Figure 10 , based on the first embodiment of the application provides a kind of fast and accurate steering knuckle bearing hole position degree gauge, the second embodiment of the application proposes another kind of fast and accurate steering knuckle bearing hole position degree gauge.Second embodiment is only the preferred mode of first embodiment, and the implementation of second embodiment does not affect the separate implementation of first embodiment.

[0054] Specifically, the second embodiment of the application provides a kind of fast and accurate steering knuckle bearing hole position degree gauge, and the difference lies in that a kind of fast and accurate steering knuckle bearing hole position degree gauge, the both sides of the top of bottom plate 5 are fixedly installed with installation component 6, the installation component 6 includes installation block 61, sliding slot 62, moving slot 63, sliding rod 64 and elastic element 65, the inside of installation component 6 is slidably installed with limiting component 7, the limiting component 7 includes moving block 71, extrusion block 72 and clamping block 73, the both sides of the outer surface of Z-direction positioning block 1 are equipped with clamping slot 8.

[0055] The mounting block 61 is fixedly installed on the top of the bottom plate 5, the sliding groove 62 is formed in the middle of one side of the mounting block 61, the moving groove 63 is formed in the middle of the top of the inner cavity wall of the sliding groove 62, the sliding rod 64 is fixedly installed in the inside of the moving groove 63, and the elastic element 65 is sleeved on one side of the outer surface of the sliding rod 64.

[0056] The moving block 71 is slidingly installed in the inside of the sliding groove 62, the extrusion block 72 is fixedly installed on one side of the surface of the moving block 71, and the clamping block 73 is fixedly installed on the other side of the moving block 71.

[0057] The clamping block 73 is in a triangular block shape, and the top is provided with a downward inclined surface.

[0058] The elastic element 65 adopts a spring structure, one end of the elastic element 65 is connected with the extrusion block 72, the other end is connected with the inner cavity wall of the moving groove 63, and the restoring elastic force of the elastic element 65 pushes the extrusion block 72 to move towards the side of the Z-direction positioning block 1.

[0059] The working principle of the quick and accurate steering knuckle bearing hole position degree gauge provided by the utility model is as follows:

[0060] In working, firstly, the Z-direction positioning block 1 is attached to the surface of the bottom plate 5, the Z-direction positioning block 1 bottom moves towards the side of the bottom plate 5 along the inclined surface of the top of the clamping block 73, the Z-direction positioning block 1 extrudes the clamping block 73 into the inside of the sliding groove 62 by extruding the inclined surface, the clamping block 73 drives the extrusion block 72 and the moving block 71 to move away from the side of the Z-direction positioning block 1, and the extrusion block 72 slides and extrudes the elastic element 65 along the sliding rod 64.

[0061] When the Z-direction positioning block 1 is attached to the surface of the bottom plate 5 and the clamping groove 8 and the sliding groove 62 are communicated, the clamping block 73 is not limited, the restoring elastic force of the elastic element 65 pushes the extrusion block 72 to move towards the side of the Z-direction positioning block 1, and the clamping block 73 is embedded into the inside of the clamping groove 8, thereby limiting the Z-direction positioning block 1 on the surface of the bottom plate 5.

[0062] In dismounting, the user holds the moving block 71 to move away from the side of the Z-direction positioning block 1.

[0063] Compared with the related art, the quick and accurate steering knuckle bearing hole position degree gauge has the following beneficial effects:

[0064] The quick and accurate steering knuckle bearing hole position degree gauge is convenient to install on the top of the bottom plate 5 by the restoring elastic force of the elastic element 65 pushing the clamping block 73 to be embedded into the clamping groove 8 of the Z-direction positioning block 1, the device has the advantages of simple structure, strong practicability and convenience for the installation of the Z-direction positioning block 1, and the convenience of operation is improved.

[0065] The above merely illustrates the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which are made by using the content of the present application specification and drawings, are also included in the patent protection scope of the present application.

Claims

1. A quick and accurate gauge for checking the position of the bearing hole of a steering knuckle, characterized in that, Include: Z direction positioning block, centering block, dial gauge, dial gauge seat and bottom plate; The Z direction positioning block is fixed on the surface of the bottom plate by four bolts, and the outer edge of the upper end surface and the bottom of the knuckle bearing hole are in contact, so that the knuckle is placed horizontally. Two threaded holes for installing the centering block are left on the upper end surface of the Z direction positioning block, one of which is a hole for installing the dial gauge seat; Two centering blocks are installed on the upper end surface of the Z direction positioning block, respectively, for centering the knuckle bearing hole; The dial gauge seat is connected to the upper end surface of the Z direction positioning block by bolts, and is used to fix the dial gauge; The dial gauge is installed in the open slot hole on the dial gauge seat, and is used to display the relative distance from the knuckle blank cone surface to a fixed point. The bottom plate is the base of the gauge, and its weight can ensure that the gauge does not move when pushing and rotating the knuckle during detection.

2. The quick and accurate check gauge for the position degree of the bearing hole of the knuckle as claimed in claim 1, wherein The Z direction positioning block is arranged on the top of the bottom plate by bolts, which is used to keep the knuckle horizontal.

3. The quick and accurate check gauge for steering knuckle bearing hole position degree of claim 1, wherein, The centering block is installed on the upper end surface of the Z direction positioning block, and the two centering blocks are distributed at a certain angle, which is used to position the center of the knuckle bearing hole.

4. The quick and accurate check gauge for steering knuckle bearing hole position degree of claim 1, wherein, The dial gauge is installed in the open slot hole of the dial gauge seat, and the lateral locking bolt is tightened to limit the dial gauge.

5. The quick and accurate check gauge for steering knuckle bearing hole position degree of claim 1, wherein, Both sides of the top of the bottom plate are fixedly provided with mounting components, which include mounting blocks, sliding grooves, moving grooves, sliding rods and elastic members. The inside of the mounting component is slidably provided with a limiting component, which includes a moving block, an extrusion block and a clamping block. The outer surface of the Z direction positioning block is provided with clamping grooves on both sides.

6. A quick and accurate checking fixture for kingpin hole location of a knuckle as claimed in claim 5 wherein, The mounting component is fixedly installed on the top of the bottom plate, the sliding groove is arranged in the middle of one side of the mounting block, the moving groove is arranged in the middle of the top of the inner cavity wall of the sliding groove, the sliding rod is fixedly installed in the inside of the moving groove, and the elastic member is sleeved on one side of the outer surface of the sliding rod.

7. A quick and accurate checking fixture for kingpin hole location of a knuckle as claimed in claim 6 wherein, The moving block is slidably installed in the inside of the sliding groove, the extrusion block is fixedly installed on one side of the surface of the moving block, and the clamping block is fixedly installed on the other side of the moving block.

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