Rapid simulation swing arm assembly testing fixture

Abstract

The invention discloses a rapid simulation swing arm assembly testing fixture. The testing fixture comprises a swing arm mounting mechanism, a toe-in adjusting and connecting mechanism, a lower swing arm elastic adjusting and limiting mechanism and a rapid detection mechanism which are distributed on a base, the swing arm mounting mechanism comprises four swing arm mounting frames; the toe-in adjusting and connecting mechanism is used for being connected with a toe-in pull rod; the lower swing arm elastic adjustment limiting mechanism is used for being in contact fit with the lower swing arm to adjust the position of the lower swing arm; the rapid detection mechanism is used for detecting the camber angle and the inclination angle of the hub. According to the invention, not only can the influence of the manufacturing deviation of the swing arm assembly on the precision be rapidly detected, but also the precision state of the actual loading of the tire can be simulated, and meanwhile, the detection tool can simulate the maximum deviation value of the mounting point of the swing arm on the frame by adjusting the positions of different swing arm mounting brackets according to the standard swing arm. And the arrangement of the precision of the mounting point of the swing arm assembly on the frame is greatly facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of automobile manufacturing and processing, in particular to a rapid simulation swing arm assembly inspection tool. Background Art

[0002] In the manufacturing of non-load-bearing vehicles, tires are installed on the swing arm assembly and connected to the frame. The tires have camber, caster and toe angles. Figure 1 and Figure 2 As shown, it includes an upper swing arm 51, a lower swing arm 52, a toe rod 53, a wheel hub 54 and a tapered positioning ball joint 55. The camber angle is shown in FIG. Figure 3 As shown, the schematic diagram of the caster angle is as follows Figure 4 As shown, the diagram of toe angle is as follows Figure 5 shown.

[0003] The precision adjustment requirements for camber angle, caster angle, toe angle, etc. will directly affect the driving state of the vehicle. Therefore, in addition to the accuracy of the swing arm assembly mounting bracket on the frame affecting the above dimensions, the accuracy of the swing arm assembly also directly affects the above dimensional accuracy. Therefore, the swing arm assembly needs to be strictly inspected.

[0004] The traditional inspection method can only confirm the dimensional accuracy of the upper and lower brackets and wheel hubs in the swing arm assembly; because the upper and lower brackets in the swing arm assembly are mostly connected to the wheel hub by a conical positioning ball joint, the upper and lower brackets have a large degree of freedom, and the inspection size cannot accurately reflect the actual loading effect. In order to ensure product quality, the accuracy requirements of the corresponding brackets and wheel hubs need to be improved, resulting in an increase in the manufacturing cost of the swing arm assembly, and it is also impossible to accurately determine the impact of the swing arm assembly on the actual loading. Not only does it make it difficult to analyze the vehicle driving status problem, but it also causes inconvenience in the control of the matching size of the frame and swing arm assembly during manufacturing. Summary of the invention

[0005] The purpose of the present invention is to provide a rapid simulation inspection fixture for an arm assembly, so as to solve the problem that it is difficult for traditional inspection methods to simulate and inspect the actual loading state of the arm assembly. At the same time, the invention can also simulate the influence of the installation accuracy deviation on the frame on the installation of the tire of the arm assembly, and can simulate the quality problem of whether the frame deviation and the installation of the arm assembly lead to the error of parameters such as the tire camber angle, caster angle, and toe angle.

[0006] To achieve the above object, the present invention adopts the following technical solution: A rapid simulation swing arm assembly inspection fixture includes a swing arm installation mechanism, a toe-in adjustment connection mechanism, a lower swing arm elastic adjustment limit mechanism and a rapid detection mechanism distributed on a base, wherein: The swing arm mounting mechanism includes four swing arm mounting frames, two of which are located at a low position, corresponding to the lower swing arm, and are used to fix the two ends of the lower swing arm; the other two swing arm mounting frames are located at a high position, corresponding to the upper swing arm, and are used to fix the two ends of the upper swing arm; The toe-in adjustment connection mechanism is used to connect with the toe-in rod and can drive the toe-in rod to move so as to adjust the toe angle; The elastic adjustment limit mechanism of the lower swing arm is used to contact and cooperate with the lower swing arm, and can move up and down to adjust the position of the lower swing arm; The rapid detection mechanism is used to detect the camber angle and inclination angle of the wheel hub.

[0007] Furthermore, among the four swing arm mounting frames, one is a fixed swing arm mounting frame, and the other three are adjustable swing arm mounting frames; The four swing arm mounting frames are respectively a lower front fixed swing arm mounting frame, a lower rear adjustable swing arm mounting frame, an upper front adjustable swing arm mounting frame and an upper rear adjustable swing arm mounting frame.

[0008] Furthermore, the fixed swing arm bracket is composed of a fixed part and a swing arm mounting part, the adjustable swing arm mounting frame is composed of an adjusting part and a swing arm mounting part, and the swing arm mounting parts of the fixed swing arm bracket and the adjustable swing arm mounting frame have the same structure.

[0009] Furthermore, the swing arm mounting part includes a mounting seat, a positioning block, a movable pin, a top plate, an ejection shaft and an adjustment rod, the adjustment rod vertically passes through the mounting seat and is threadedly connected thereto, the upper end of the adjustment rod is clamped with a top plate that is rotatably matched therewith, and the ejection shaft that is outwardly and upwardly inclined is symmetrically fixed to the left and right positions of the top plate; Positioning blocks are symmetrically arranged on the left and right positions of the mounting seat, and horizontal through holes are arranged on the upper ends of the positioning blocks, and movable pins that slide and cooperate with the through holes are arranged in the through holes; an ejection hole for the ejection shaft to pass through is arranged on the movable pin, and movable long grooves that cooperate with the ejection shaft are arranged on the upper and lower sides of the through holes; the two ejection shafts pass through the corresponding movable long grooves and ejection holes on the two positioning blocks respectively.

[0010] Furthermore, the adjustment part is an XYX three-way adjustment structure, which realizes XYX three-way adjustment of the swing arm installation part.

[0011] Further, the adjustment part includes an X-direction adjustment seat, a Y-direction adjustment seat and a Z-direction adjustment seat; An X-direction adjustment seat is provided with an X-direction guide column, and two adjustment plates are symmetrically fixed to the lower side of the mounting seat of the swing arm mounting part, and the two adjustment plates are both slidably mounted on the X-direction guide column. At the same time, two X-direction adjustment screws are symmetrically provided on the X-direction adjustment seat, and the two X-direction adjustment screws are both threadedly connected to the X-direction adjustment seat, and the ends of the X-direction adjustment screws are in contact with the corresponding adjustment plates; The Z-direction adjustment seat is provided with a Z-direction guide column, the X-direction adjustment seat is slidably connected with the Z-direction guide column, a Z-direction adjustment screw is threaded through the Z-direction adjustment seat, and the end of the Z-direction adjustment screw is rotatably connected with the X-direction adjustment seat; The Y-direction adjustment seat is installed on the base, and a Y-direction adjustment seat is provided with a Y-direction guide column. The Z-direction adjustment seat is slidably connected with the Y-direction guide column. A Y-direction adjustment screw is threaded through the Y-direction adjustment seat, and the end of the Y-direction adjustment screw is rotatably connected with the Z-direction adjustment seat.

[0012] Furthermore, the toe adjustment connection mechanism includes a vertical pole fixed vertically on the base, the upper end of the vertical pole is provided with a through hole, the toe pull rod passes through the through hole, and the end of the toe pull rod is provided with an adjusting nut threadedly connected thereto, and the adjusting nut is limitedly matched with the through hole.

[0013] Furthermore, the elastic adjustment and limiting mechanism of the lower swing arm includes a support plate, a screw adjuster and a guide rod, a guide cylinder extending downward is fixedly provided on the lower side of the support plate, the screw adjuster is vertically arranged and its lower end is rotatably connected to the base, and the guide cylinder is threadedly connected to the upper end of the screw adjuster; The side wall of the guide cylinder is provided with a vertically extending guide groove; the guide rod is fixed on the base, and a horizontal guide part is fixed on the upper end of the guide rod, and the guide part extends into the guide groove, and the two form a guide fit in the up and down directions.

[0014] Further, the rapid detection mechanism includes a support seat, a detection positioning block is fixedly provided at the upper end of the support seat, an axial through hole is provided on the detection positioning block, a rotation limit shaft passes through the axial through hole, a rotation limit block is fixedly provided at one end of the rotation limit shaft, a cross groove is provided on the end surface of the detection positioning block facing the rotation limit block, a straight-shaped protrusion is provided on the end surface of the rotation limit block facing the detection positioning block, and the straight-shaped protrusion is engaged with the longitudinal groove or the transverse groove of the cross groove to realize the 90-degree rotation positioning of the rotation limit block; A limiting part is provided at the other end of the rotation limiting shaft, and a return spring is sleeved on the rotation limiting shaft between the limiting part and the detection positioning block; A fixed ruler is vertically fixed on the rotation limit block, and a movable ruler parallel to the fixed ruler is provided on one side of the fixed ruler. The movable ruler is connected to the fixed ruler through a pin shaft to realize the rotation of the movable ruler with the pin shaft as the center of the circle; The base is provided with a cross-shaped transverse slide rail and a longitudinal slide rail, the clamped wheel hub is located at the cross-shaped intersection, and the longitudinal slide rail points to the end face of the wheel hub; the support seat is slidably connected with the transverse slide rail or the longitudinal slide rail; When the support seat is located on the longitudinal slide rail and the movable scale is in a vertical state, it is used to detect the camber angle of the wheel hub; When the support seat is located on the longitudinal slide rail and the movable ruler is in a horizontal state, it is used to detect the toe angle of the wheel hub.

[0015] Furthermore, the two ends of the movable ruler are respectively detachably fixed with an upper detection block and a lower detection block, and the ends of the upper detection block and the lower detection block are arc-shaped grooves; When the support seat is located on the transverse slide rail, the movable ruler is in a vertical state, and is used to detect the caster angle of the wheel hub in conjunction with the upper detection block and the lower detection block.

[0016] Beneficial effects of the present invention: The present invention can not only quickly detect the influence of the manufacturing deviation of the swing arm assembly itself on the accuracy, but also simulate the accuracy state of the actual tire installation. At the same time, the inspection fixture can also simulate the maximum deviation value of the swing arm installation point on the frame according to the standard swing arm and then adjust the position of different swing arm installation brackets, which is of great help to the setting of the installation point accuracy of the swing arm assembly on the frame.

[0017] The present invention can simulate the actual installation state of the swing arm assembly through a quickly adjustable swing arm installation bracket, and solves not only the rapid detection of the camber angle through a quick detection mechanism, but also the problem that the traditional detection method is difficult to detect the caster angle, and realizes the simulation detection of the actual loading state of the swing arm assembly, and can simulate the frame deviation and whether the installation of the swing arm assembly leads to quality problems such as excessive tolerance of tire camber angle, caster angle, toe and other parameters.

[0018] The mechanism of the present invention is easy to operate and has low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the swing arm assembly; Figure 2 yes Figure 1 A top view of Figure 3 is a schematic diagram of the camber angle; Figure 4 is a schematic diagram of caster angle; Figure 5 It is a schematic diagram of the toe angle; Figure 6 It is a schematic diagram of the structure of the present invention; Figure 7 yes Figure 5 Side view of Figure 8 is a schematic diagram of a swing arm mounting bracket in the present invention; Fig. 9 yes Figure 8 Side view of Fig.10 is a schematic diagram of adjusting the swing arm mounting bracket in the present invention; Fig.11 yes Fig. 9 Side view of Fig.12is a schematic diagram of the elastic adjustment limit mechanism of the present invention; Fig.13 It is a schematic diagram of the rapid detection mechanism in the present invention; Fig.14 yes Fig.13 Side view of Fig.15 It is a top view of the support seat of the rapid detection mechanism located on the longitudinal slide rail; Fig.16 This is a front view of the support seat of the rapid detection mechanism located on the longitudinal slide rail; Fig.17 It is a top view of the support seat of the rapid detection mechanism located on the transverse slide rail; Fig.18 It is a front view of the support seat of the rapid detection mechanism located on the transverse slide rail; Fig.19 It is a schematic diagram of the coordination between the movable ruler and the fixed ruler; Fig. 20 is a schematic diagram of detecting camber angle of the present invention; Fig.21 is a schematic diagram of detecting the toe angle of the present invention; Fig. 22 It is a schematic diagram of detecting the caster angle according to the present invention.

[0020] The drawings are only used for illustrative purposes and should not be construed as limitations on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] like Figures 6 to 22 As shown, this embodiment provides a rapid simulation swing arm assembly inspection fixture, including a swing arm installation mechanism, a toe adjustment connection mechanism 8, a lower swing arm elastic adjustment limit mechanism 7 and a rapid detection mechanism 4 distributed on a base 1.

[0023] The swing arm mounting mechanism comprises four swing arm mounting frames corresponding to and fixing the upper and lower swing arms respectively. Among the four swing arm mounting frames, one is a fixed swing arm mounting frame, and the other three are adjustable swing arm mounting frames.

[0024] Specifically in this embodiment, the four swing arm mounting frames are respectively a lower front fixed swing arm mounting frame 2, a lower rear adjustable swing arm mounting frame 3, an upper front adjustable swing arm mounting frame 5 and an upper rear adjustable swing arm mounting frame 6. The lower front fixed swing arm mounting frame 2 and the lower rear adjustable swing arm mounting frame 3 are located at a low position, corresponding to the lower swing arm, and are used to fix the two ends of the lower swing arm; the upper front adjustable swing arm mounting frame 5 and the upper rear adjustable swing arm mounting frame 6 are located at a high position, corresponding to the upper swing arm, and are used to fix the two ends of the upper swing arm.

[0025] The fixed swing arm bracket is composed of a fixed part and a swing arm mounting part, and the adjustable swing arm mounting frame is composed of an adjusting part and a swing arm mounting part. The swing arm mounting parts of the fixed swing arm bracket and the adjustable swing arm mounting frame have the same structure.

[0026] The specific structure of the swing arm mounting part is as follows: it includes a mounting seat 9, a positioning block 10, a movable pin 11, a top plate 12, an ejector shaft 13 and an adjusting rod 14. The adjusting rod 14 passes through the mounting seat 9 and is threadedly connected to it. The upper end of the adjusting rod 14 is clamped with the top plate 12 that rotates with it. The ejector shaft 13 that is outwardly and upwardly inclined is symmetrically fixed on the left and right positions of the top plate 12.

[0027] In this embodiment, the upper end of the adjustment rod 14 is a stepped shaft with a smaller diameter, and the top plate 12 is installed at the step and is limited by a limiting clamping plate 15 .

[0028] Positioning blocks 10 are symmetrically arranged at the left and right positions of the mounting seat 9. The upper ends of the positioning blocks 10 are each provided with a horizontal through hole, and a movable pin 11 slidably matched therewith is arranged in the through hole; an ejection hole for the ejection shaft to pass through is arranged on the movable pin 11, and at the same time, movable long grooves 111 matching the ejection shaft are correspondingly arranged on the upper and lower sides of the through hole, and the two ejection shafts 13 pass through the corresponding movable long grooves 111 and the ejection holes on the two positioning blocks respectively.

[0029] When the swing arm installation part is working, the adjustment rod 14 is rotated upward to drive the top plate 12 to move upward, and the ejection shaft 13 drives the guide pin 17 to move inward, clamping the corresponding positions of the upper and lower swing arms to fix the swing arm; conversely, the adjustment rod 14 is rotated downward to drive the guide pin 17 to move outward to loosen the corresponding positions of the upper and lower swing arms. The movable pin 17 can be clamped inward at the same time, which can simulate the bolt clamping to be the swing arm parts with force on both sides at the same time.

[0030] The fixed part of the fixed swing arm bracket is a conventional fixing seat, which supports and fixes the mounting seat 9 on the base.

[0031] The adjustment part includes an X-direction adjustment seat 16 , a Y-direction adjustment seat 33 and a Z-direction adjustment seat 32 .

[0032] Two X-guide columns 171 are provided on the X-axis adjustment seat 16, and two adjustment plates 91 are symmetrically fixed to the lower side of the mounting seat 9 of the swing arm mounting part. The two adjustment plates 91 are both slidably installed on the X-guide columns 171. At the same time, two X-axis adjustment screws 181 are symmetrically provided on the X-axis adjustment seat 16, and the two X-axis adjustment screws 181 are both threadedly connected to the X-axis adjustment seat, and the ends of the X-axis adjustment screws 181 are in contact with the corresponding adjustment plates 91.

[0033] The Z-direction adjustment seat 32 is provided with a Z-guide column 172 , the X-direction adjustment seat 16 is slidably connected to the Z-guide column 172 , a Z-direction adjustment screw 182 is threaded through the Z-direction adjustment seat 32 , and the end of the Z-direction adjustment screw 182 is rotatably connected to the X-direction adjustment seat 32 .

[0034] The Y-axis adjustment seat 33 is installed on the base, and a Y-axis guide column 173 is provided on the Y-axis adjustment seat 33. The Z-axis adjustment seat 32 is slidably connected with the Y-axis guide column 173. A Y-axis adjustment screw 183 is threaded through the Y-axis adjustment seat 33, and the end of the Y-axis adjustment screw 183 is rotatably connected with the Z-axis adjustment seat 32.

[0035] As long as the adjustment part can realize XYX three-way adjustment of the swing arm mounting part, its structure is not limited to the structure described in this embodiment, and it can also adopt other mature XYX three-way adjustment structures.

[0036] The toe-in adjustment connection mechanism 8 is used to be connected to the toe-in rod and can drive the toe-in rod to move so as to adjust the toe angle.

[0037] In this embodiment, the toe adjustment connection mechanism includes a vertical rod 8 fixed vertically on the base, and a sleeve 81 is provided at the upper end of the vertical rod 8. A through hole is formed in the sleeve 81, and the toe rod passes through the through hole. The end of the toe rod is provided with an adjusting nut threadedly connected thereto, and the adjusting nut is limitedly matched with the through hole.

[0038] The lower swing arm elastic adjustment limit mechanism 7 is used to contact and cooperate with the lower swing arm, and can move up and down to adjust the position of the lower swing arm.

[0039] In this embodiment, the elastic adjustment limit mechanism of the lower swing arm includes a support plate 19, a spiral adjuster 20 and a guide rod 21. A guide cylinder extending downward is fixedly provided on the lower side of the support plate 19. The spiral adjuster 20 is vertically arranged and its lower end is rotatably connected to the base. The guide cylinder is threadedly connected to the upper end of the spiral adjuster 20.

[0040] The side wall of the guide cylinder is provided with a guide groove extending vertically; the guide rod 21 is vertically fixed on the base, and a horizontal guide portion is fixed to the upper end of the guide rod 21, and the guide portion extends into the guide groove, and the two form a guide fit in the up and down directions.

[0041] When the elastic adjustment limit mechanism of the lower swing arm is working, the screw adjuster 20 is rotated, which drives the support plate 19 to move upward along the guide rod 21, so that the position of the lower swing arm assembly can be adjusted to a theoretical state.

[0042] The rapid detection mechanism is used to detect the camber angle, caster angle and toe angle of the wheel hub.

[0043] In this embodiment, the rapid detection mechanism includes a support seat 22, and a detection positioning block 23 is fixedly provided on the upper end of the support seat 22. The detection positioning block 23 is provided with an axial through hole, and a rotation limit shaft 24 passes through the axial through hole. A rotation limit block 25 is fixedly provided at one end of the rotation limit shaft 24. A cross groove is provided on the end surface of the detection positioning block 23 facing the rotation limit block, and a straight-line protrusion is provided on the end surface of the rotation limit block 25 facing the detection positioning block. The straight-line protrusion is engaged with the longitudinal groove or the transverse groove of the cross groove to realize the 90-degree rotation positioning of the rotation limit block 25, thereby driving the fixed scale 27 and the movable scale 28 to switch between the horizontal state and the vertical state.

[0044] A limiting portion is disposed at the other end of the rotation limiting shaft 24 , and a return spring 26 is sleeved on the rotation limiting shaft between the limiting portion and the detection positioning block 23 .

[0045] A fixed scale 27 is vertically fixed on the rotation limit block 25, and a movable scale 28 is parallel and fitted to the fixed scale 27 on one side. The movable scale 28 is connected to the fixed scale 27 via a rotating shaft 29 passing therethrough to enable the movable scale 28 to rotate around the pin shaft as the center.

[0046] The specific scale design adopts the following scheme: the fixed scale 27 has a 0 scale at a position concentric with the rotating axis 29, and scale lines with an accuracy of 0.5 degrees on both sides; the corresponding movable scale 28 has a 0 scale at a position concentric with the rotating axis, and scale lines with an accuracy of 0.4 degrees on both sides. The cooperation of the two detection rulers can make the detection accuracy reach 0.05 degrees.

[0047] The base 1 is provided with a cross-shaped transverse rail 101 and a longitudinal rail 102, the clamped wheel hub is located at the cross point, and the longitudinal rail points to the end face of the wheel hub; the bottom surface of the support seat 22 is provided with a linear guide block, which is slidably connected with the transverse rail 101 or the longitudinal rail 102, so that the support seat 22 can move along the corresponding rail. In this embodiment, the transverse rail 101 and the longitudinal rail 102 are in the form of guide grooves.

[0048] When the support seat 22 is located on the longitudinal slide rail 102 and the movable scale 28 is in a vertical state, it is used to detect the camber angle of the wheel hub; When the support seat is located on the longitudinal slide rail 102 and the movable scale 28 is in a horizontal state, it is used to detect the toe angle of the wheel hub.

[0049] In this embodiment, an upper detection block 30 and a lower detection block 31 are detachably fixed at both ends of the movable scale 28, and the ends of the upper detection block 30 and the lower detection block 31 are arc-shaped grooves. The upper and lower detection blocks are of the same size and are respectively matched with the lower parts of the conical positioning ball joints connecting the upper and lower swing arms and the wheel hub, so as to conveniently detect the caster angle.

[0050] When the support seat is located on the transverse slide rail 101, the movable scale 28 is in a vertical state, and cooperates with the upper detection block 30 and the lower detection block 31 to detect the caster angle of the wheel hub.

[0051] The working principle of the present invention is as follows: Place the front and rear parts of the lower swing arm of the swing arm assembly in the lower front fixed swing arm mounting frame 2 and the lower rear adjustable swing arm mounting frame 3 respectively, move the adjusting rod 14 to drive the top plate 12 to move upward, and the ejection shaft 13 drives the guide pin 17 to move inward to clamp the corresponding position of the lower swing arm. After fixing the lower swing arm, place the front and rear parts of the upper swing arm of the swing arm assembly in the upper front adjustable swing arm mounting frame 5 and the upper rear adjustable swing arm mounting frame 6 respectively, move the adjusting rod 14 to drive the top plate 12 to move upward, and the ejection shaft 13 drives the guide pin 17 to move inward to clamp the corresponding position of the upper swing arm.

[0052] Adjust the screw adjuster 20 in the elastic adjustment limit mechanism 7 of the lower swing arm, which drives the support plate 19 to move upward along the guide rod 21, and adjusts the position of the lower swing arm assembly to the theoretical state; connect the toe adjustment connecting mechanism 8 to the toe pull rod for adjusting the toe angle on the swing arm assembly, and adjust the toe angle to the qualified range. At this time, the four swing arm mounting frames are all at the theoretical value.

[0053] like Fig. 20 As shown, camber angle detection: the support seat 22 is placed on the longitudinal slide rail 102 and moved toward the wheel hub. At this time, the movable scale and the fixed scale are in a vertical state, and the movable scale 28 contacts the wheel hub mounting surface to detect the camber angle in the vertical direction (the principle is to quickly determine the camber angle of the wheel hub at this time through the difference between the movable scale 28 and the fixed scale 27); like Fig.21 As shown, toe angle detection: the movable rotating limit block 24 is rotated 90 degrees (the return spring 26 ensures that the rotating limit block 24 accurately enters the theoretical position in the positioning block 23). At this time, the movable ruler and the fixed ruler are in a horizontal state, and the support seat 22 is still located on the longitudinal slide rail 102 and moves toward the wheel hub. The movable ruler 28 contacts the wheel hub mounting surface (end face) to quickly detect the toe angle in the horizontal direction.

[0054] like Fig. 22As shown, caster angle detection: move the support seat from the longitudinal slide rail 102 to the transverse slide rail 101. At this time, the movable scale and the fixed scale are in a vertical state. Install the upper detection block 30 and the lower detection block 31 on the movable scale 28 and move it toward the wheel hub. The detection blocks are in contact with the lower part of the conical positioning ball joint on the wheel hub respectively, so that the caster angle of the wheel hub can be quickly determined.

[0055] The above can detect the influence of camber angle, caster angle and toe angle caused by the deviation of the swing arm assembly itself after being installed in the theoretical position.

[0056] In addition, the three-way movement of the adjustment part is used to make the swing arm mounting frame deviate from the theoretical value, simulating the actual assembly state of the swing arm. The above-mentioned detection steps can be used to confirm whether the actual installation state of the wheel hub is qualified.

[0057] The present invention can not only quickly detect the influence of the manufacturing deviation of the swing arm assembly itself on the accuracy, but also simulate the accuracy state of the actual tire installation. At the same time, the inspection fixture can also simulate the maximum deviation value of the swing arm installation point on the frame according to the standard swing arm and then adjust the position of different swing arm installation brackets, which is of great help to the setting of the installation point accuracy of the swing arm assembly on the frame.

[0058] The present invention can simulate the actual installation state of the swing arm assembly through a quickly adjustable swing arm installation bracket, and solves not only the rapid detection of the camber angle through a quick detection mechanism, but also the problem that the traditional detection method is difficult to detect the caster angle, and realizes the simulation detection of the actual loading state of the swing arm assembly, and can simulate the frame deviation and whether the installation of the swing arm assembly leads to quality problems such as excessive tolerance of tire camber angle, caster angle, toe and other parameters; and the mechanism is easy to operate and has low manufacturing cost.

[0059] The above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

[0060] If the words "first", "second", etc. are used in this document to limit components, those skilled in the art should know that the use of "first" and "second" is only to facilitate the description of the present invention and simplify the description. Unless otherwise stated, the above words have no special meaning.

[0061] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0062] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A rapid simulation swing arm assembly inspection fixture, characterized in that: It includes a swing arm installation mechanism, a toe-in adjustment connection mechanism, a lower swing arm elastic adjustment limit mechanism and a quick detection mechanism distributed on the base, wherein: The swing arm mounting mechanism includes four swing arm mounting frames, two of which are located at a low position, corresponding to the lower swing arm, and are used to fix the two ends of the lower swing arm; the other two swing arm mounting frames are located at a high position, corresponding to the upper swing arm, and are used to fix the two ends of the upper swing arm; The toe-in adjustment connection mechanism is used to connect with the toe-in rod and can drive the toe-in rod to move so as to adjust the toe angle; The elastic adjustment limit mechanism of the lower swing arm is used to contact and cooperate with the lower swing arm, and can move up and down to adjust the position of the lower swing arm; The rapid detection mechanism is used to detect the camber angle and inclination angle of the wheel hub.

2. The rapid simulation swing arm assembly inspection fixture according to claim 1 is characterized in that: Among the four swing arm mounting brackets, one is a fixed swing arm mounting bracket, and the other three are adjustable swing arm mounting brackets; The four swing arm mounting frames are respectively a lower front fixed swing arm mounting frame, a lower rear adjustable swing arm mounting frame, an upper front adjustable swing arm mounting frame and an upper rear adjustable swing arm mounting frame.

3. The rapid simulation swing arm assembly inspection fixture according to claim 2 is characterized in that: The fixed swing arm bracket is composed of a fixed part and a swing arm mounting part, and the adjustable swing arm mounting frame is composed of an adjusting part and a swing arm mounting part. The swing arm mounting parts of the fixed swing arm bracket and the adjustable swing arm mounting frame have the same structure.

4. The rapid simulation swing arm assembly inspection fixture according to claim 3 is characterized in that: The swing arm mounting part includes a mounting seat, a positioning block, a movable pin, a top plate, an ejection shaft and an adjustment rod. The adjustment rod vertically passes through the mounting seat and is threadedly connected to the mounting seat. The upper end of the adjustment rod is clamped with a top plate that is rotatably matched with the top plate. The ejection shaft that is outwardly and upwardly inclined is symmetrically fixed on the left and right positions of the top plate. Positioning blocks are symmetrically arranged on the left and right positions of the mounting seat, and horizontal through holes are arranged on the upper ends of the positioning blocks, and movable pins that slide and cooperate with the through holes are arranged in the through holes; an ejection hole for the ejection shaft to pass through is arranged on the movable pin, and movable long grooves that cooperate with the ejection shaft are arranged on the upper and lower sides of the through holes; the two ejection shafts pass through the corresponding movable long grooves and ejection holes on the two positioning blocks respectively.

5. The rapid simulation swing arm assembly inspection fixture according to claim 4 is characterized in that: The adjustment part is an XYX three-way adjustment structure, which realizes XYX three-way adjustment of the swing arm installation part.

6. The rapid simulation swing arm assembly inspection fixture according to claim 5 is characterized in that: The adjustment part includes an X-direction adjustment seat, a Y-direction adjustment seat and a Z-direction adjustment seat; An X-direction adjustment seat is provided with an X-direction guide column, and two adjustment plates are symmetrically fixed to the lower side of the mounting seat of the swing arm mounting part, and the two adjustment plates are both slidably mounted on the X-direction guide column. At the same time, two X-direction adjustment screws are symmetrically provided on the X-direction adjustment seat, and the two X-direction adjustment screws are both threadedly connected to the X-direction adjustment seat, and the ends of the X-direction adjustment screws are in contact with the corresponding adjustment plates; The Z-direction adjustment seat is provided with a Z-direction guide column, the X-direction adjustment seat is slidably connected with the Z-direction guide column, a Z-direction adjustment screw is threaded through the Z-direction adjustment seat, and the end of the Z-direction adjustment screw is rotatably connected with the X-direction adjustment seat; The Y-direction adjustment seat is installed on the base, and a Y-direction adjustment seat is provided with a Y-direction guide column. The Z-direction adjustment seat is slidably connected with the Y-direction guide column. A Y-direction adjustment screw is threaded through the Y-direction adjustment seat, and the end of the Y-direction adjustment screw is rotatably connected with the Z-direction adjustment seat.

7. The rapid simulation swing arm assembly inspection fixture according to claim 1 is characterized in that: The toe-in adjustment connection mechanism includes a vertical pole fixed on a base, an upper end of the vertical pole is provided with a through hole, a toe-in pull rod passes through the through hole, and an adjusting nut threadedly connected to the end of the toe-in pull rod is provided, and the adjusting nut is limitedly matched with the through hole.

8. The rapid simulation swing arm assembly inspection fixture according to claim 1 is characterized in that: The elastic adjustment and limiting mechanism of the lower swing arm includes a support plate, a screw adjuster and a guide rod. A guide cylinder extending downward is fixedly provided on the lower side of the support plate. The screw adjuster is vertically arranged and its lower end is rotatably connected to the base. The guide cylinder is threadedly connected to the upper end of the screw adjuster. The side wall of the guide cylinder is provided with a vertically extending guide groove; the guide rod is fixed on the base, and a horizontal guide part is fixed on the upper end of the guide rod, and the guide part extends into the guide groove, and the two form a guide fit in the up and down directions.

9. The rapid simulation swing arm assembly inspection fixture according to claim 1 is characterized in that: The rapid detection mechanism comprises a support seat, a detection positioning block is fixedly provided at the upper end of the support seat, an axial through hole is provided on the detection positioning block, a rotation limit shaft passes through the axial through hole, a rotation limit block is fixedly provided at one end of the rotation limit shaft, a cross groove is provided on the end surface of the detection positioning block facing the rotation limit block, a straight-shaped protrusion is provided on the end surface of the rotation limit block facing the detection positioning block, and the straight-shaped protrusion is engaged with the longitudinal groove or the transverse groove of the cross groove to realize the 90-degree rotation positioning of the rotation limit block; A limiting part is provided at the other end of the rotation limiting shaft, and a return spring is sleeved on the rotation limiting shaft between the limiting part and the detection positioning block; A fixed ruler is vertically fixed on the rotation limit block, and a movable ruler parallel to the fixed ruler is provided on one side of the fixed ruler. The movable ruler is connected to the fixed ruler through a pin shaft to realize the rotation of the movable ruler with the pin shaft as the center of the circle; The base is provided with a cross-shaped transverse slide rail and a longitudinal slide rail, the clamped wheel hub is located at the cross-shaped intersection, and the longitudinal slide rail points to the end face of the wheel hub; the support seat is slidably connected with the transverse slide rail or the longitudinal slide rail; When the support seat is located on the longitudinal slide rail and the movable scale is in a vertical state, it is used to detect the camber angle of the wheel hub; When the support seat is located on the longitudinal slide rail and the movable ruler is in a horizontal state, it is used to detect the toe angle of the wheel hub.

10. The rapid simulation swing arm assembly inspection fixture according to claim 9, characterized in that: The two ends of the movable scale are respectively detachably fixed with an upper detection block and a lower detection block, and the ends of the upper detection block and the lower detection block are arc-shaped grooves; When the support seat is located on the transverse slide rail, the movable ruler is in a vertical state, and is used to detect the caster angle of the wheel hub in conjunction with the upper detection block and the lower detection block.

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