Gauge for bushing press-fitting height detection

Abstract

The utility model relates to a bushing press-fitting height detection tool, comprising an inner tube and an outer tube, the middle part of the upper end of the inner tube is connected with a handle, the outer side of the upper part of the inner tube is provided with a circle of calibration groove around the circumference, the two sides of the lower end of the inner tube are symmetrically provided with two arc projections, the inner tube is sleeved with the outer tube, and the outer tube is sleeved with the outer tube. A circle of limiting ring groove is formed in the middle of the inner wall of the outer pipe around the circumference, the two sides of the middle of the inner pipe are each transversely provided with an installation hole, a connecting shaft is inserted into the two installation holes, and the two ends of the connecting shaft are located in the limiting ring groove. The bushing press-fitting height detection device is simple in structure and convenient to operate, can realize full-cycle detection of the bushing press-fitting height, solves the problem that full-cycle detection cannot be realized when a caliper is conventionally used for detection, and can greatly improve the detection efficiency after being used.

Description

TECHNICAL FIELD

[0001] The utility model relates to automobile control arm testing fixture technical field, especially a kind of testing fixture of bushing press fitting height detection. BACKGROUND

[0002] Bush press fitting height detection is a key size detection project of automobile control arm, and the current test method is basically to use digital caliper to measure height, but this measurement method can only realize the measurement of local position, and cannot completely cover the measurement of full circumference height. Especially for open bush structure, due to the reason of external tube structure of bush, in the process of pressing, the risk of deformation of external tube is greater than that of conventional closed bush, which finally leads to different height conditions of press fitting height at different positions. How to effectively and efficiently detect the full circumference press fitting height condition becomes the key point of bush press fitting height detection fixture design. SUMMARY

[0003] The utility model solves the technical problem to provide a kind of testing fixture of bushing press fitting height detection, simple structure, easy operation can realize the full circumference detection of bush press fitting height, solve the problem that cannot be detected full circumference when detecting using conventional caliper, and the efficiency of detection can be greatly improved after use.

[0004] The utility model solves the technical problem and adopts the technical scheme that provides a kind of testing fixture of bushing press fitting height detection, including inner tube and outer tube, the inner tube upper end middle part is connected with handle, and the outer side of the inner tube upper part is arranged with a circle of calibration recess around circumference, the both sides of the inner tube lower end are arranged with two circular-arc protrusions, the outer tube is provided with the outer tube, and the inner wall middle part of the outer tube is arranged with a circle of limit ring groove around circumference, the both sides of the inner tube middle part are both horizontally provided with a mounting hole, and the two mounting holes are inserted with connecting shaft, the both ends of the connecting shaft are located in limit ring groove, the inner tube is rotated relative to the limit ring groove of outer tube inner wall by the cooperation of connecting shaft and limit ring groove, and there is certain up-down movable gap between limit ring groove and the end of connecting shaft, and the inner tube can move up and down relative to the outer tube.

[0005] As a supplement to the technical scheme of the utility model, the outer edge of the inner tube upper end is arranged with a circle around the edge, and the outer diameter of the outer edge is greater than the diameter of the inner hole of the outer tube.

[0006] As a supplement to the technical scheme of the utility model, a threaded column is vertically arranged in the middle part of the upper end of the inner tube, and a threaded hole is arranged in the lower end of the handle and matched with the threaded column.

[0007] As a supplement to the technical scheme of the utility model, an opening is arranged on the outer side of the outer tube and communicated with the limit ring groove.

[0008] As a supplement to the technical scheme of the utility model, one of the mounting holes is provided with a circular embedding groove on the outer side, a ring-shaped protrusion is arranged on the outer side of one end of the connecting shaft, the ring-shaped protrusion is buckled into the embedding groove, and a T-shaped groove is formed on the end face of the connecting shaft near one end of the ring-shaped protrusion.

[0009] As a supplement to the technical scheme of the utility model, the mounting hole and the connecting shaft are screwed.

[0010] Beneficial effects: the utility model relates to a bushing press-fit height detection gauge, which is simple in structure, convenient to operate, can realize full-circle detection of the bushing press-fit height, solves the problem that full-circle detection cannot be realized when a conventional caliper is used for detection, and can greatly improve the detection efficiency after use. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is the sectional view of the utility model in use state;

[0012] Figure 2 is the structural schematic diagram of the utility model in use state;

[0013] Figure 3 is the sectional view of the utility model;

[0014] Figure 4 is the structural schematic diagram of the inner tube;

[0015] Figure 5 is the structural schematic diagram of the connecting shaft;

[0016] Figure 6 is the structural schematic diagram of the detection product.

[0017] Fig. 1, handle, 2, inner tube, 3, outer tube, 4, connecting shaft, 5, control arm, 6, calibration groove, 7, circular arc protrusion, 8, bushing, 9, mounting part, 10, limit ring groove, 11, outer edge, 12, threaded column, 13, threaded hole, 14, opening, 15, mounting hole, 16, embedding groove, 17, T-shaped groove, 18, ring-shaped protrusion. DETAILED DESCRIPTION

[0018] The utility model will be further described in combination with specific embodiments. It should be understood that these embodiments are only used for illustrating the utility model and are not used for limiting the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0019] The embodiment of the utility model relates to a bushing press-fit height detection gauge, likeFigures 1-6 As shown, it comprises an inner tube 2 and an outer tube 3, the upper middle of the inner tube 2 is connected with a handle 1, the outer side of the upper part of the inner tube 2 is arranged with a circle of calibration grooves 6 around the circumference, the lower end of the inner tube 2 is symmetrically arranged with two circular-arc protrusions 7 on both sides, the outer sleeve of the inner tube 2 is provided with an outer tube 3, the inner wall of the outer tube 3 is arranged with a circle of limiting ring grooves 10 around the circumference, the middle of the inner tube 2 is laterally provided with an installation hole 15 on both sides, the two installation holes 15 are inserted with a connecting shaft 4, the two ends of the connecting shaft 4 are located in the limiting ring grooves 10, the inner tube 2 is rotated relative to the limiting ring grooves 10 of the inner wall of the outer tube 3 through the connecting shaft 4, and there is a certain up-down movement gap between the limiting ring grooves 10 and the end of the connecting shaft 4, so that the inner tube 2 can move up and down relative to the outer tube 3; the limiting ring grooves 10 on the inner side of the outer tube 3 can ensure that the inner tube 2 rotates around the circumference after the connecting shaft 4 is inserted; the connecting shaft 4 can ensure that the inner tube 2 and the outer tube 3 are not separated when continuously detecting different products, and the detection efficiency is improved.

[0020] The calibration grooves 6 on the outer side of the inner tube 2 are used to determine whether the press-fitting height of the bushing 8 is qualified; the two circular-arc protrusions 7 at the bottom of the inner tube 2 are in contact with the upper end face of the bushing 8, so that linear contact can be realized, and the accuracy of the bushing 8 press-fitting height detection is ensured.

[0021] As a preferred scheme of the inner tube 2, the upper end of the inner tube 2 is arranged with a circle of outer edges 11 around the edge, and the outer diameter of the outer edge 11 is greater than the diameter of the inner hole of the outer tube 3; the outer edge 11 arranged on the upper end of the inner tube 2 can avoid the complete insertion of the inner tube 2 into the outer tube 3, and plays a limiting role.

[0022] As a connecting structure of the handle 1, a threaded column 12 is vertically arranged at the upper middle of the inner tube 2, and a threaded hole 13 matched with the threaded column 12 is arranged at the lower end of the handle 1; the threaded column 12 and the threaded hole 13 are screwed to realize the quick connection of the handle 1 and the inner tube 2, and the operation is relatively simple.

[0023] As a preferred scheme of the outer tube 3, an opening 14 is arranged on the outer side of the outer tube 3 and is communicated with the limiting ring groove 10, and the opening 14 is arranged to facilitate the installation of the connecting shaft 4.

[0024] As the preferred scheme of the connecting shaft 4, the outer side of one mounting hole 15 is provided with a circular embedding groove 16, the outer side of one end of the connecting shaft 4 is arranged with a ring-shaped protrusion 18 which is buckled into the embedding groove 16, and a T-shaped groove 17 is formed on the end face of the connecting shaft 4 close to the ring-shaped protrusion 18; the mounting hole 15 is screwed with the connecting shaft 4; when the connecting shaft 4 is installed, the two mounting holes 15 are aligned with the opening 14, then the connecting shaft 4 is installed from the opening 14, the connecting shaft 4 passes through the two mounting holes 15, a T-shaped screwdriver is inserted into the T-shaped groove 17, the connecting shaft 4 is rotated by the T-shaped screwdriver, the connecting shaft 4 is continuously screwed until the ring-shaped protrusion 18 abuts against the embedding groove 16, so that the connecting shaft 4 is installed in place, and the two ends of the connecting shaft 4 are located in the limiting ring groove 10.

[0025] As shown in Figure 6 , one end of the control arm 5 is provided with a mounting portion 9, and the middle portion of the mounting portion 9 needs to be press-fitted with a bushing 8. After the gauge is assembled, the structure can refer to Figure 3 , in the natural holding state, the inner tube 2 and the outer tube 3 are ensured not to be separated by the connecting shaft 4; in the next step, the gauge is placed above the bushing 8, and is naturally placed down, so that the lower end face of the outer tube 3 and the upper end face of the mounting portion 9 are naturally contacted, then the handle 1 is slowly loosened, and the two circular arc protrusions 7 at the lower end of the inner tube 2 are naturally contacted with the upper end face of the outer tube of the bushing 8; in the next step, the handle 1 is rotated to drive the inner tube 2 to rotate, and the calibration groove 6 on the outer side of the outer tube 3 is observed to move up and down in the rotating process, and only when the upper end face of the outer tube 3 is aligned with the calibration groove 6, the press-fitting height of the bushing 8 is qualified; otherwise, if the calibration groove 6 is completely hidden in the outer tube 3 or completely exposed, it is determined that the press-fitting height is unqualified.

[0026] In the description of the utility model, it is understood that the orientation words such as "front, back, up, down, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship usually is based on the orientation or position relationship shown in the drawing, just for the convenience of describing the utility model and simplifying the description, under the condition of not making the opposite statement, these orientation words do not indicate and imply that the indicated device or element must have a particular orientation or be constructed and operated in a particular orientation, therefore it can not be understood as the limitation to the protection scope of the utility model;The orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0027] For purposes of the description hereinafter, spatial

[0028] In addition, it should be noted that the use of "first", "second", etc. words to define parts, only for the convenience of the corresponding parts, such as no other declaration, the above words have no special meaning, therefore can not be understood as the limitation of the scope of protection of the utility model.

[0029] The sleeve pressing height detection jig provided by the application is described in detail above, and the principles and implementation modes of the application are described in this paper. The above example is only used to help understand the method and core idea of the application. Meanwhile, for those skilled in the art, according to the idea of the application, the specific implementation mode and application range will be changed. In summary, the content of the specification should not be understood as a limitation of the application.

Claims

1. A gage for detecting the press-fit height of a bushing, comprising an inner tube (2) and an outer tube (3), characterized in that: The upper end of the inner tube (2) is connected with a handle (1), the outer side of the upper part of the inner tube (2) is arranged with a circle of calibration grooves (6) around the circumference, the lower end of the inner tube (2) is symmetrically arranged with two circular arc protrusions (7) on both sides, the outer sleeve of the inner tube (2) is provided with an outer tube (3), the inner wall of the outer tube (3) is arranged with a circle of limiting ring grooves (10) around the circumference, the middle part of the inner tube (2) is laterally provided with an installation hole (15) on both sides, the two installation holes (15) are inserted with a connecting shaft (4), the both ends of the connecting shaft (4) are located in the limiting ring groove (10), the inner tube (2) is relatively rotated by the cooperation of the connecting shaft (4) and the limiting ring groove (10) of the inner wall of the outer tube (3), and a certain up-down movement gap exists between the limiting ring groove (10) and the end of the connecting shaft (4), so that the inner tube (2) can move up and down relative to the outer tube (3).

2. A bushing press-fit height detection gauge according to claim 1, characterized in that: The upper end of the inner tube (2) is arranged with a circle of outer edges (11) around the edge, and the outer diameter of the outer edge (11) is greater than the diameter of the inner hole of the outer tube (3).

3. A bushing press-fit height detection gauge according to claim 1, characterized in that: The upper end of the inner tube (2) is vertically provided with a threaded column (12) in the middle part, and the lower end of the handle (1) is provided with a threaded hole (13) matched with the threaded column (12).

4. The bushing press-fit height detection gauge of claim 1, wherein: The outer side of the outer tube (3) is provided with an opening (14) communicated with the limiting ring groove (10).

5. A bushing press-fit height detection gauge according to claim 1, wherein: The outer side of one of the installation holes (15) is provided with a circular embedding groove (16), the outer side of one end of the connecting shaft (4) is arranged with a circle of annular protrusions (18), the annular protrusions (18) are buckled into the embedding groove (16), and a T-shaped groove (17) is formed in the end face of the connecting shaft (4) close to one end of the annular protrusions (18).

6. A bushing press-fit height detection gauge according to claim 1 or 5, characterized in that: The installation hole (15) and the connecting shaft (4) are screwed.

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