Axle housing flatness and width comprehensive detection device

Abstract

The utility model provides an axle housing flatness and width comprehensive detection device, the detection of the width of an axle housing is realized through the cooperation of a main ruler and detection connecting arms at the two ends of the main ruler, a scale structure is arranged on the main ruler to indicate the extension length values of the detection connecting arms relative to the main ruler, and the positions of the two detection connecting arms are adjusted through telescoping. The free ends of the two detection connecting arms abut against the two side faces of the width measuring position of the axle housing piece respectively, the display scales on the two detection connecting arms are read and recorded, and the display scales and the length of the main ruler are added to obtain the accurate width value of the axle housing piece. Meanwhile, the flatness reference plate is flatly attached to the position of the end face to be detected of the axle housing piece and can be directly used as a detection reference of the flatness of a workpiece, the flatness face can be rapidly and accurately detected by assisting a common measuring tool feeler gauge, and the comprehensive detection device is simple in structure, convenient to use and high in practicability. Two performance index dimensions of a workpiece can be detected at the same time through one-time use of the tool, and the detection efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts production and processing, in particular to a bridge shell flatness and width comprehensive detection device. BACKGROUND

[0002] The upper side of the middle part of the automobile axle shell piece is a plane, and the lower side is a "hat" structure. During subsequent assembly, the plane side of the automobile axle shell piece needs to be welded with a reinforcing ring to connect with the main reducer shell, which requires that the plane side of the bridge shell piece and the contact area of the reinforcing ring have a certain flatness X. Therefore, after the automobile axle shell piece is processed, the flatness of the area needs to be detected. Currently, the flatness is determined by axially positioning the bridge shell piece and measuring the height value of the plane with a height vernier and multiple points. Alternatively, a three-dimensional coordinate instrument is used for measurement, but the operation is complicated and not suitable for mass production requirements. In addition, since the main reducer gear needs to be placed inside the bridge shell, the maximum width Y of the front and rear of the bridge shell piece is a key dimension that affects whether the main reducer gear can work smoothly.

[0003] In actual production, the flatness X and the maximum width value Y of the automobile axle shell piece need to be detected using different detection tools and different detection methods, which requires repeated replacement of detection tools and multiple positioning, resulting in low measurement efficiency.

[0004] In summary, the size detection of the existing automobile axle shell piece has the technical problems of complicated process and low detection efficiency. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problems of complicated process and low detection efficiency in the size detection of the existing automobile axle shell piece.

[0006] To solve the above problems, the utility model provides a bridge shell flatness and width comprehensive detection device, which comprises a main ruler and detection connecting arms telescopically connected to both ends of the main ruler, the free ends of the detection connecting arms are used to abut the two outer sides of the width direction of the bridge shell piece to be measured, and the detection connecting arms are provided with scale structures along their telescopic directions; the main ruler is vertically connected with a support column, the end of the support column opposite to the main ruler is connected with a flatness reference plate, and the flatness reference plate is used to fit the surface to be measured of the bridge shell piece to serve as a reference plate for performing flatness detection.

[0007] The comprehensive detection device for the bridge housing has the advantages that the maximum width value and the flatness of the end surface of the "hat" shaped structure of the automobile bridge housing part can be detected at one time, the detection of the width is realized by the cooperation of the main ruler and the detection connecting arms at the two ends of the main ruler, the detection connecting arms can be telescopically matched with the main ruler, the scale structure is arranged on the detection connecting arms, the length value of the extension of the detection connecting arms relative to the main ruler can be indicated, the positions of the two detection connecting arms are adjusted through the telescopic adjustment, the free ends of the two detection connecting arms are respectively in contact with the two side surfaces of the width measurement position of the bridge housing part, the display scales on the two detection connecting arms are read and recorded in this state, the length of the main ruler and the display scale values of the two detection connecting arms are added to obtain the accurate width value of the bridge housing part, the flatness reference plate is directly attached to the end surface position of the bridge housing part to be detected, and the flatness reference plate can be directly used as the detection reference of the flatness of the workpiece, and the common measuring tool plug gauge can quickly and accurately complete the detection of the flatness, the comprehensive detection device has the advantages of simple structure, convenient use, simultaneous detection of the two performance index sizes of the workpiece through one use of the tool, greatly improved detection efficiency and effective solution to the technical problems of complicated process and low detection efficiency in the size detection of the existing automobile bridge housing part.

[0008] As a preferred scheme, the two ends of the main ruler are provided with insertion holes parallel to the length direction of the main ruler; the detection connecting arm comprises a slide ruler part and a cantilever part which are integrally bent and connected, the free end of the slide ruler part is inserted and connected with the main ruler in sliding mode through the insertion hole, and the cantilever part is bent to one side of the connecting arm body, and the scale structure is arranged on the slide ruler part. This design further optimizes the structure of the detection connecting arm in the above technical scheme, and the slide ruler part and the cantilever part are integrally formed and have a preset bending angle, the slide ruler part is used for sliding insertion with the main ruler, and the cantilever part is used for abutting against the workpiece measurement surface to assist detection, and preferably, an indication calibration structure matched with the scale structure is arranged on the end surface or the side edge of the main ruler to indicate the accurate relative extension scale of the slide ruler part.

[0009] As a preferred scheme, the free end of the cantilever part is fixedly connected with a contact structure which protrudes to one side of the flatness reference plate, the contact structure is conical, and the protruding height of the contact structure matches the position of the scale structure on the slide ruler part. This design further optimizes the structure of the cantilever part to improve the detection accuracy, the protruding contact structure is arranged at the end of the cantilever part which is used for abutting against the surface of the workpiece, the contact structure preferably adopts a conical pointed structure, the contact area between the contact point and the corresponding detection surface of the workpiece to be detected is reduced through the structure, thereby improving the measurement accuracy, and the position of the scale on the slide ruler part is also optimized through the protruding contact structure, and the distance of the protruding contact point is offset through the position setting of the scale.

[0010] As a preferred scheme, the flatness reference plate comprises a detection base plate fixedly connected with the end of the support column and a detection extension plate detachably connected with the edge of the detection base plate through a mortise and tenon structure, and the size of the detection extension plate matches the size of the flat surface of the bridge shell to be detected. This design further optimizes the design of the flatness measurement structure. The flatness reference plate comprises two parts, i.e., the detection base plate and the detection extension plate, which are connected through a mortise and tenon structure. Through such a structure, the flatness reference plate can adapt to the detection of bridge shell parts of different sizes. Different sizes of detection extension plates are used for different sizes of bridge shell parts. The detection extension plate only needs to be docked with the detection base plate, thereby improving the wide applicability of the comprehensive detection device.

[0011] As a preferred scheme, the detection base plate is in the shape of a circular plate, the detection extension plate is in the shape of a circular ring plate, and the mortise and tenon structure comprises a plurality of boss structures uniformly distributed on the edge of the detection base plate and a plurality of sink structures distributed on the inner edge of the detection extension plate and corresponding to the boss structures. This design is a further optimization of the above technical scheme. In order to adapt to the profile shape of the flat surface of the bridge shell to be detected, the detection base plate and the detection extension plate are respectively in the shape of a circular plate and a ring plate. In order to ensure the accuracy of the mortise and tenon docking, a plurality of boss structures and sink structures are uniformly distributed on the edge of the circular part. The uniform distribution of a plurality of mounting structures ensures the accuracy of the docking position of the detection base plate and the detection extension plate, thereby preventing misalignment during installation.

[0012] As a preferred scheme, the boss structure and the sink structure are both provided with mutually matched inclined surface structures, and the detection reference surfaces of the detection base plate and the detection extension plate that are docked with each other are flush through the inclined surface structures. This design further optimizes the docking between the detection base plate and the detection extension plate. The positions of the boss structure and the sink structure that cooperate with each other are provided with inclined surfaces. The inclined direction of the boss structure adopts a positive trapezoidal surface of the inclined surface of the detection base plate, and the inclined direction of the inclined surface of the sink structure is exactly opposite. Such inclined surface matching structure can further ensure the accuracy of the docking position between the detection base plate and the detection extension plate, and can naturally place and install the detection extension plate into position through gravity without other positioning methods.

[0013] As a preferred scheme, the support column comprises an outer column body and an inner column body that are mutually sleeved, the outer column body is fixedly connected with the main ruler, the inner column body is fixedly connected with the detection base plate, and the outer column body and the inner column body are axially and telescopically connected. This design provides a preferred support column structure design. The outer column body is in the shape of a hollow cylinder. This structure can conveniently adjust the distance between the flatness reference plate and the main ruler, and can adapt to bridge shell parts of different sizes.

[0014] As a preferred scheme, the top of the main ruler is fixedly connected with a handle structure. The design provides a structure for improving the convenience of the detection device, and the handle structure is arranged on the main ruler, so that the operator can hold and operate conveniently. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 Figure 1 is a left view structural schematic diagram of a bridge housing flatness and width comprehensive detection device provided by the present application;

[0016] Figure 2 For Figure 1 Figure 2 is a top view structural schematic diagram of a middle bridge housing flatness and width comprehensive detection device;

[0017] Figure 3 For Figure 1 Figure 3 is a front view structural schematic diagram of a middle bridge housing flatness and width comprehensive detection device;

[0018] Figure 4 Figure 4 is a left view structural schematic diagram of the bridge housing flatness and width comprehensive detection device provided by the present application when the bridge housing piece is detected;

[0019] Figure 5 Figure 5 is a top view structural schematic diagram of the bridge housing flatness and width comprehensive detection device provided by the present application when the bridge housing piece is detected;

[0020] Figure 6 Figure 6 is a front view structural schematic diagram of the bridge housing flatness and width comprehensive detection device provided by the present application when the bridge housing piece is detected;

[0021] Among them, Figures 1-6 The middle:

[0022] 1, main ruler; 2, detection connecting arm; 2-1, slide ruler part; 2-2, cantilever part; 2-3, contact structure; 2-4, scale structure; 3, flatness reference plate; 3-1, detection base plate; 3-2, detection expansion plate; 4, support column; 5, handle structure; 6, boss structure; 7, sink structure; 8, bridge housing piece. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, purposes and effects achieved by the present application easy to understand, the present application is further described below in combination with specific embodiments.

[0024] Before the working principle of the utility model is described in detail, the description of the utility model needs to be further explained and described: in the description of the utility model, it should be pointed out that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "mounting", "provided with", "connection" and the like should be broadly understood, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can be directly connected, can be indirectly connected through intermediate medium, or can be two element welding connection. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0026] Reference Figures 1-6 The following examples are described as follows, Figure 1 A left view structural schematic diagram of a bridge housing flatness and width comprehensive detection device provided by the utility model; Figure 2 A Figure 1 A top view structural schematic diagram of a middle bridge housing flatness and width comprehensive detection device; Figure 3 A Figure 1 A front view structural schematic diagram of a middle bridge housing flatness and width comprehensive detection device; Figure 4 A left view structural schematic diagram when the bridge housing flatness and width comprehensive detection device provided by the utility model is used to detect a bridge housing piece; Figure 5 A top view structural schematic diagram when the bridge housing flatness and width comprehensive detection device provided by the utility model is used to detect a bridge housing piece; Figure 6 A front view structural schematic diagram when the bridge housing flatness and width comprehensive detection device provided by the utility model is used to detect a bridge housing piece;

[0027] The embodiment of the utility model provides a kind of bridge housing flatness and width comprehensive detection device, including main ruler 1 and with the telescopic connection of both ends of main ruler 1 detection connecting arm 2, the free end of detection connecting arm 2 is used to resist in the two outer sides of the width direction of bridge housing piece 8 to be measured, and detection connecting arm 2 is provided with the scale structure 2-4 along its telescopic direction;Main ruler 1 is vertically connected with support column 4, and the end portion opposite to main ruler 1 of support column 4 is connected with flatness reference plate 3, and flatness reference plate 3 is used to be attached with the surface to be measured of bridge housing piece 8 to serve as the reference plate of execution flatness detection.

[0028] The utility model provides this kind of bridge housing flatness and width comprehensive detection device can be disposable to the maximum width value of automobile bridge housing piece and the flatness of "cap" shape structure end face is detected, wherein the detection of width is realized by main ruler 1 cooperation with the detection connecting arm 2 of both ends, since detection connecting arm 2 can be relatively telescopic cooperation with main ruler 1, and scale structure 2-4 is arranged on it, the length value of detection connecting arm 2 relative to main ruler 1 can be indicated, the position of two detection connecting arms 2 is adjusted by telescoping, the free end of two detection connecting arms 2 is respectively contacted with the two sides of bridge housing piece measuring width position, in this state, the display scale on two detection connecting arms 2 is respectively read and recorded, the length of main ruler 1 and the display scale value of two detection connecting arms 2 are added, and the accurate width value of bridge housing piece can be obtained;Meanwhile, flatness reference plate 3 is directly used as the detection reference of workpiece flatness by being attached to the end surface position to be measured of bridge housing piece, and the detection of flat surface can be quickly and accurately completed by using the commonly used measuring tool plug gauge, the comprehensive detection device is simple in structure and convenient to use, two performance index sizes of workpiece can be detected simultaneously by using tool once, the detection efficiency is greatly improved, and the technical problems of complicated process and low detection efficiency in the size detection of existing automobile bridge housing piece are effectively solved.

[0029] In the technical scheme provided by the embodiment, the two ends of the main ruler are provided with the insertion holes parallel to the length direction of the main ruler; the detection connecting arm includes a sliding ruler part and a cantilever part which are integrally connected by bending; the free end of the sliding ruler part is inserted into the insertion hole of the main ruler and slides with the main ruler; and the cantilever part is bent towards one side of the main ruler body, and the scale structure is arranged on the sliding ruler part. The design further optimizes the structure of the detection connecting arm in the above technical scheme, and the detection connecting arm includes the sliding ruler part and the cantilever part which are integrally formed and have a preset bending angle, the sliding ruler part is used to be inserted into and slide with the main ruler, and the cantilever part is used to abut against the measuring surface of the workpiece to assist detection. Preferably, an indicating calibration structure matched with the scale structure is arranged on the end surface or the side edge of the end surface of the main ruler to indicate the accurate extension scale of the sliding ruler part.

[0030] In the technical scheme provided by the embodiment, the free end of the cantilever part 2 is fixedly connected with a contact structure 2-3 protruding to one side of the flatness reference plate 3, the contact structure 2-3 is conical, and the protruding height of the contact structure 2-3 matches the position of the scale structure 2-4 on the slide ruler part 2-1. The design further optimizes the structure of the cantilever part 2 to improve detection accuracy, and a protruding contact structure 2-3 is arranged at the end of the cantilever part 2 used to abut the surface of the workpiece. The contact structure 2-3 preferably adopts a conical sharp structure, which reduces the contact area between the contact point and the corresponding detection surface of the workpiece to be detected, thereby improving the accuracy of measurement. In addition, the position of the scale on the slide ruler part 2-1 is also optimized by the protruding contact structure 2-3.

[0031] In the technical scheme provided by the embodiment, the flatness reference plate 3 includes a detection base plate 3-1 fixedly connected with the end of the support column 4 and a detection expansion plate 3-2 detachably connected with the edge of the detection base plate 3-1 through a mortise and tenon structure, and the size of the detection expansion plate 3-2 matches the size of the detection plane of the bridge housing 8. The design further optimizes the design of the flatness measurement structure. The flatness reference plate 3 includes two parts connected through a mortise and tenon structure, i.e., the detection base plate 3-1 and the detection expansion plate 3-2. This structure allows the flatness reference plate 3 to adapt to the detection of bridge housings 8 of different sizes. Different sizes of detection expansion plates 3-2 are used for different sizes of bridge housings 8. The detection expansion plate 3-2 is simply butted against the detection base plate 3-1, which improves the wide applicability of the comprehensive detection device.

[0032] In the technical scheme provided by the embodiment, the detection base plate 3-1 is in the shape of a circular plate, and the detection expansion plate 3-2 is in the shape of a circular ring plate. The mortise and tenon structure includes a plurality of boss structures 6 uniformly distributed on the edge of the detection base plate 3-1 and a plurality of sink structures 7 distributed on the inner edge of the detection expansion plate 3-2 and corresponding to the boss structures 6. The design is a further optimization of the above counting scheme. To adapt to the profile shape of the bridge housing detection plane, the detection base plate 3-1 and the detection expansion plate 3-2 are respectively in the shape of a circular plate and a ring plate. To ensure the accuracy of the mortise and tenon butt joint, a plurality of boss structures 6 and sink structures 7 are uniformly distributed on the edge of the circular plate. The uniform distribution of the plurality of mounting structures ensures the accuracy of the butt joint position of the detection base plate 3-1 and the detection expansion plate 3-2, preventing misalignment during installation.

[0033] In the technical scheme provided by the embodiment, the boss structure 6 and the sunken groove structure 7 are provided with mutually matched inclined surface structures, and the detection reference surfaces of the mutually butted detection substrate 3-1 and the detection expansion plate 3-2 are leveled by the inclined surface structures. The design further optimizes the butt joint between the detection substrate 3-1 and the detection expansion plate 3-2, and the positions of the mutually matched boss structure 6 and the sunken groove structure 7 are provided with inclined surfaces, wherein the inclined direction of the boss structure 6 adopts the inclined surface of the detection substrate 3-1 as a positive trapezoidal surface, and the inclined direction of the inclined surface of the sunken groove structure 7 is opposite. The structure matched by the inclined surfaces can further ensure the accuracy of the butt joint position between the detection substrate 3-1 and the detection expansion plate 3-2, and can naturally place and install the detection expansion plate 3-2 in place by the structure and the gravity effect, without other positioning modes.

[0034] In the technical scheme provided by the embodiment, the support column 4 includes an outer column body and an inner column body which are mutually sleeved, the outer column body is fixedly connected with the main ruler 1, the inner column body is fixedly connected with the detection substrate 3-1, and the outer column body and the inner column body are axially and telescopically connected. The design provides a preferred support column 4 structure design, the structure of which is obtained by sleeving two main bodies, the outer column body is in the form of a hollow cylinder, and the structure can conveniently adjust the spacing between the flatness reference plate 3 and the main ruler 1 and can adapt to bridge housing pieces 8 of different models and sizes.

[0035] In the technical scheme provided by the embodiment, the top of the main ruler 1 is fixedly connected with a handle structure 5. The design provides a structure for improving the convenience of use of the detection device, and the handle structure 5 is arranged on the main ruler 1, so that the operator can conveniently hold and operate.

[0036] Although the utility model discloses as above, the protection scope of the utility model disclosed is not limited to this. The person skilled in the art can make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. A device for comprehensively detecting the flatness and width of a bridge shell, characterized in that, It includes a main scale (1) and two telescopically connected detection connecting arms (2) at both ends of the main scale (1). The free ends of the detection connecting arms (2) are used to abut against the two outer sides of the bridge housing (8) in the direction of the width to be measured. The detection connecting arms (2) are provided with a scale structure (2-4) along their telescopic direction. The main scale (1) is vertically connected to a support column (4). The end of the support column (4) opposite to the main scale (1) is connected to a flatness reference plate (3). The flatness reference plate (3) is used to fit against the surface to be measured of the bridge housing (8) as a reference plate for performing flatness detection.

2. The bridge shell flatness and width comprehensive detection device according to claim 1, characterized in that, Both ends of the main scale (1) are provided with insertion holes parallel to its length direction; the detection connecting arm (2) includes an integrally bent sliding scale part (2-1) and a cantilever part (2-2). The free end of the sliding scale part (2-1) is slidably inserted into the main scale (1) through the insertion hole. The cantilever part (2-2) is bent toward the main body of the connecting arm. The scale structure (2-4) is provided on the sliding scale part (2-1).

3. The bridge shell flatness and width comprehensive detection device according to claim 2, characterized in that, The free end of the cantilever (2-2) is fixedly connected to a contact structure (2-3) that protrudes toward one side of the flatness reference plate (3). The contact structure (2-3) is conical, and the protrusion height of the contact structure (2-3) matches the position of the scale structure (2-4) on the slider (2-1).

4. The bridge shell flatness and width comprehensive testing device according to any one of claims 1-3, characterized in that, The flatness reference plate (3) includes a detection base plate (3-1) fixedly connected to the end of the support column (4) and a detection extension plate (3-2) detachably connected to the edge of the detection base plate (3-1) through a mortise and tenon structure. The size of the detection extension plate (3-2) matches the size of the plane to be measured of the bridge housing (8).

5. The bridge shell flatness and width comprehensive detection device according to claim 4, characterized in that, The detection substrate (3-1) is in the shape of a circular plate, the detection extension plate (3-2) is in the shape of a circular ring, and the mortise and tenon structure includes a plurality of boss structures (6) evenly distributed on the edge of the detection substrate (3-1) and a plurality of groove structures (7) distributed on the inner edge of the detection extension plate (3-2) and positioned corresponding to the boss structures (6).

6. The bridge shell flatness and width comprehensive detection device according to claim 5, characterized in that, Both the boss structure (6) and the groove structure (7) are provided with mutually cooperating inclined structures, which make the detection reference surfaces of the mutually connected detection substrate (3-1) and detection extension plate (3-2) flush.

7. The bridge shell flatness and width comprehensive detection device according to claim 4, characterized in that, The support column (4) includes an outer column and an inner column that are nested together. The outer column is fixedly connected to the main scale (1), and the inner column is fixedly connected to the detection base plate (3-1). The outer column and the inner column are axially telescopically connected.

8. The bridge shell flatness and width comprehensive detection device according to claim 4, characterized in that, The top of the main ruler (1) is fixedly connected to a handle structure (5).

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