A detection device for detecting the performance of vehicle suspension struts

Abstract

The present invention discloses a detection device for detecting the performance of a vehicle suspension strut, which relates to the technical field of automobile detection equipment. The device comprises a strut, a detection equipment, an upper positioning tool and a lower positioning tool. The upper positioning tool and the lower positioning tool are both connected to the strut, the upper positioning tool is connected to the detection equipment, and the center of the upper positioning tool after connection is coaxial with the axis of the detection equipment. The lower positioning tool is connected to the strut via a fastener, and after connection, the lower positioning tool and the axis of the strut are coaxial or at an angle θ. The lower positioning tool is connected to the center of the detection equipment. The device can enable the lower part of the strut to simulate the roll change of the wheel and rotate around an axis, so that the installation state is vertical or inclined at a certain angle, and the horizontal direction and angle of the strut can be adjusted to realize the detection of the strut performance on the detection equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile detection equipment, and more particularly to a detection device for detecting the performance of a vehicle suspension strut. Background Art

[0002] The performance of a vehicle's suspension struts is one of the key performance characteristics of the vehicle suspension. During the design and development of the vehicle and suspension, to verify whether the strut performance meets the product design requirements, it is necessary to test the strut's stiffness, resistance, resistance direction, maximum profile and other properties.

[0003] The current testing method for automobile suspension struts is to test the components of the struts to indirectly verify the performance of the struts or to verify the performance by installing them on the vehicle. Mechanical testing equipment such as spring test benches and electronic universal test benches are used to test the performance of the struts. During the testing process, a connecting device is needed to fix the struts so that the upper part of the struts can automatically find the position, so that the upper installation center of the struts is on the center line of the upper and lower test discs of the testing equipment, so that the lower part of the struts can simulate the wheel roll change and rotate around an axis, so that the installation state can be vertical or tilted at a certain angle, and the horizontal direction and angle of the struts can be adjusted to make the test data easier to process and use. However, this method can only test the components of the struts to verify the performance of the struts, and cannot accurately test the performance of the struts. Summary of the Invention

[0004] Based on the above problems, the purpose of the present invention is to provide a detection device for detecting the performance of a vehicle suspension strut, so as to solve the problem in the prior art that the performance of the suspension strut cannot be detected on the detection equipment.

[0005] The technical solution adopted to solve the above problems is: a detection device for detecting the performance of a vehicle suspension strut, comprising a strut, a detection device, an upper positioning tool and a lower positioning tool, wherein the upper positioning tool and the lower positioning tool are both connected to the strut, the upper positioning tool is connected to the detection device, and the center of the upper positioning tool after connection is coaxial with the axis of the detection device, the lower positioning tool is connected to the strut by a fastener, and after connection, the lower positioning tool and the axis of the strut are coaxial or at an angle θ, and the lower positioning tool is connected to the center of the detection device.

[0006] Preferably: the upper positioning tooling includes an upper seat, a positioning pin and a pillar upper positioning, an installation space is provided in the upper seat, a first bolt connecting the upper seat and the detection equipment is provided in the installation space, a plurality of positioning holes are provided at the bottom of the upper seat, a plurality of bosses are provided on the pillar upper positioning, each of the bosses contacts the bottom of the upper seat and cooperates with the positioning hole through the positioning pin, the tail of the positioning pin is connected to the pillar upper positioning by a screw, the upper end of the pillar is detachably connected to the pillar upper positioning, and the upper end of the pillar after connection is coaxial with the pillar upper positioning.

[0007] Preferably: the lower positioning tooling includes a column, a base, a center marking line and a stud, the column is provided with an upper hole and a lower hole, the upper hole and the lower hole are connected to the lower part of the column by fasteners, the side of the base is provided with an open slot, and the column is located in the open slot, the bottom of the column is provided with an L-surface and a lug structure, the L-surface is perpendicular to the center of the column and fits with the upper surface of the base, the lug structure is clearance-matched with the open slot, the base is provided with a countersunk hole connected to the center of the detection equipment, the tail of the base is provided with a second bolt, the side of the base is provided with a stud horizontally and perpendicular to the second bolt, the lug structure is fixed to the open slot of the base by the stud, and the base is provided with a center marking line corresponding to the center of the countersunk hole, and the center marking line is used to adjust the horizontal direction and angle of the column.

[0008] Preferably, the top of the positioning pin is a conical surface, and the positioning pin and the positioning hole at the bottom of the upper seat are clearance-fitted.

[0009] Preferably, an opening is provided at the center of the support column.

[0010] Preferably, the upper surface of the upper seat is provided with a countersunk hole and a groove.

[0011] Preferably, one of the upper hole and the lower hole is a round hole, and the other hole is a long hole or a square hole. The upper hole and the lower hole are connected to the pillar through fasteners. The height difference H and the horizontal spacing between the upper hole and the lower hole are determined by the hole position on the pillar.

[0012] Preferably, the lug structure is provided with a through hole or a bearing, and the offset distance Q between the lug structure and the column is determined by the installation position of the column on the suspension or the detection requirements.

[0013] The beneficial effects of the present invention are:

[0014] 1. The pillar is set between the upper positioning fixture and the lower positioning fixture, and both the upper positioning fixture and the lower positioning fixture are connected to the detection equipment. The lower positioning fixture is connected to the pillar through fasteners, so that the axis of the pillar and the axis of the detection equipment coincide or form an angle θ, so that the detection device can adapt to different test requirements;

[0015] 2. The upper positioning fixture is connected to the testing equipment through a first bolt, so that the axis of the upper positioning fixture is coaxial with the axis of the testing equipment. The axes of the upper positioning fixture and the testing equipment are always coaxial, which is conducive to better testing the performance of the suspension strut;

[0016] 3. The struts and struts are detachably connected and coaxial, which makes it easier to inspect the brackets and the suspension struts of different vehicles.

[0017] 4. The pillar is connected to the lower hole and the upper hole set on the column through fasteners, and one of the upper hole and the lower hole is a circular hole, and the other hole is a long hole and an elliptical hole, so that the column can be connected to different pillars through fasteners, thereby improving the universal performance of the detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the coaxial structure of an upper positioning tool, a lower positioning tool, a testing device, and a strut of a device for testing the performance of a vehicle suspension strut according to the present invention;

[0019] Figure 2 A schematic structural diagram of an apparatus for testing vehicle suspension strut performance according to the present invention, wherein the strut, the upper positioning fixture, the lower positioning fixture, and the testing equipment are not coaxial;

[0020] Figure 3 A schematic diagram of an upper positioning tool of a device for testing the performance of a vehicle suspension strut according to the present invention;

[0021] Figure 4 A schematic diagram of a lower positioning tool of a device for testing the performance of a vehicle suspension strut according to the present invention;

[0022] Figure 5 The present invention is a schematic diagram of a column of a device for detecting the performance of a vehicle suspension strut.

[0023] Figure 1-5 Center: 1. Upper seat; 2. Positioning pin; 3. Positioning on the pillar; 4. Screw; 5. First bolt; 6. Pillar; 601. Upper hole; 602. Lower hole; 603. Lug structure; 7. Base; 701. Countersunk hole; 8. Second bolt; 9. Center marking line; 10. Pillar; 11. Stud. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is described in detail below with reference to the accompanying drawings.

[0025] like Figure 1-Figure 5 As shown: A device for detecting the performance of a vehicle suspension strut, comprising a strut 10 and a detection device, an upper positioning tool and a lower positioning tool, wherein the upper positioning tool and the lower positioning tool are both connected to the strut 10, so that the strut 10 can be directly detected on the detection device, the upper positioning tool and the detection device are connected by a first bolt 5, and the center of the upper positioning tool after connection is coaxial with the axis of the detection device, which facilitates the connection of the detection device and the upper positioning tool, the lower positioning tool and the strut 10 are connected by a fastener, and after connection, the lower positioning tool and the axis of the strut 10 are coaxial or at an angle θ, the fastener can effectively adjust the connection distance between the strut 10 and the lower positioning tool, and the lower positioning tool is connected to the center of the detection device, which can effectively detect the strut 10 and make the detection data of the strut 10 more accurate.

[0026] The upper positioning tool comprises an upper seat 1, a positioning pin 2 and a pillar upper positioning 3. An installation space is provided in the upper seat 1. The center of the upper seat 1 is connected to the detection equipment through the first bolt 5 in the installation space, and after the connection, the center of the upper seat 1 is coaxial with the axis of the detection equipment, which is convenient for the detection equipment to detect the pillar 10. A plurality of positioning holes are provided at the bottom of the upper seat 1, and a plurality of bosses are provided on the pillar upper positioning 3. Each boss contacts the bottom of the upper seat 1 and cooperates with the positioning hole at the bottom of the upper seat 1 through the positioning pin 2. The positioning pin 2 can quickly connect the upper seat 1 with the pillar upper positioning 3, and make the center of the pillar upper positioning 3 coaxial with the center of the upper seat 1. The tail of the positioning pin 2 is connected to the pillar upper positioning 3 by a screw 4. The screw 4 is used to adjust the distance between the positioning pin 2 and the lower positioning tool. The upper end of the pillar 10 is detachably connected to the pillar upper positioning 3, for example, screw connection, bolt connection, etc., and the upper end of the pillar 10 after connection is coaxial with the pillar upper positioning 3, which is convenient for the disassembly and assembly of the pillar 10 and the pillar upper positioning 3, so that the detection equipment can better detect the pillar 10.

[0027] The lower positioning tooling includes a column 6, a base 7, a center marking line 9 and a stud 11. The column 6 is provided with an upper hole 601 and a lower hole 602. The upper hole 601 and the lower hole 602 are connected to the lower part of the pillar 10 through fasteners. The pillar 10 is connected to the upper hole 601 and the lower hole 602 on the column 6 through fasteners. The fasteners are, for example, bolts, screws, etc. The fasteners facilitate the disassembly and assembly of the pillar 10 and the column 6. An open groove is provided on the side of the base 7, and the column 6 is located in the open groove. The bottom of the column 6 is provided with an L surface and a lug structure 603. The L surface is fitted with the upper surface of the base 7 so that the column 6 can be perpendicular to the base 7. The lug structure 603 is The open groove is a clearance fit, so that the lug structure 603 can move in the open groove, and the distance t between the lug structure 603 and the center of the countersunk hole 701 is controlled by the second bolt 8 at the tail of the base 7, so that when the column 6 is connected to the pillar 10, the center of the lug structure 603 and the countersunk hole 701 can be adjusted, which is convenient for the installation of the column 6 and the pillar 10. The side of the base 7 is provided with a stud 11 horizontally and vertically to the second bolt 8. The lug structure 603 and the open groove of the base 7 are fixed by the stud 11. The base 7 is provided with a center marking line 9 corresponding to the center of the countersunk hole 701. The center marking line 9 facilitates the adjustment of the horizontal direction and angle of the pillar 10 during detection.

[0028] The top of the locating pin 2 is a conical surface, which can be used for conducting wires, so that the positioning 3 on the pillar can be quickly matched with the upper seat 1. The locating pin 2 and the locating holes at the bottom of the upper seat 1 are clearance matched, which facilitates the matching of the positioning 3 on the pillar and the upper seat 1.

[0029] An opening is provided at the center of the support upper positioning 3 , and the opening at the center of the support upper positioning 3 can effectively prevent the support upper positioning 3 from interfering with the support 10 .

[0030] The upper surface of the upper seat 1 is provided with a countersink 701 and a groove. The countersink 701 is conducive to the processing of the upper surface of the upper seat 1 and avoids poor contact between the upper seat 1 and the surface of the detection equipment. The groove can avoid interference between the upper seat 1 and the pillar 10.

[0031] One of the upper hole 601 and the lower hole 602 is a round hole, and the other hole is a long hole or a square hole. The upper hole 601 and the lower hole 602 are connected to the pillar 10 by screws 4. The height difference H and the horizontal spacing between the upper hole 601 and the lower hole 602 are determined by the hole position on the pillar 10. The height of the upper hole 601 and the lower hole 602 is also adjusted according to the different hole spacing on the pillar 10, which is convenient for connecting different pillars 10.

[0032] The lug structure 603 is provided with a through hole or a bearing, which enables the lug structure 603 to rotate a certain angle along the axis of the stud 11. The offset distance Q between the lug structure 603 and the column 6 is determined by the installation position or detection requirements of the pillar 10 on the suspension, which is convenient for detecting different pillars 10 and is beneficial to the detection effect of the pillar 10.

[0033] Working principle:

[0034] When in use, the first bolt 5 is connected to the upper test disc of the detection device through the center of the upper seat 1, so that the center of the upper seat 1 coincides with the axis of the upper test disc of the detection device, and the upper positioning 3 of the pillar is matched with the positioning hole at the bottom of the upper seat 1 through the positioning pin 2, and the upper positioning 3 of the pillar is coaxial with the axis of the upper test disc of the detection device, and the upper positioning of the pillar is connected through the nut pillar;

[0035] When the axis of the pillar 10 coincides with the axis of the detection equipment, the L surface provided on the column 6 fits with the surface of the base 7, and the column 6 is quickly made perpendicular to the base 7. The distance t between the column 6 and the center of the countersunk hole 701 is adjusted by the bolt provided at the tail of the base 7. After the column 6 is connected to the pillar 10, the center of the pillar 10 is made coaxial with the center of the countersunk hole 701. The upper hole 601 and the lower hole 602 provided on the column 6 are fixedly connected to the pillar 10 by the screw 4. The countersunk hole 701 provided on the base 7 is connected to the center of the detection equipment by the bolt, and the horizontal movement direction and angle of the pillar 10 are adjusted by the center marking line 9. After the installation is completed, the pillar 10 is inspected.

[0036] When the axis of the pillar 10 forms an angle θ with the axis of the detection equipment, the column 6 is rotated to the angle θ through the stud 11, and then the distance t between the column 6 and the center of the countersunk hole 701 is adjusted by the second bolt 8 set at the tail of the base 7, so that the distance between the rotation center of the pillar 10 and the center of the countersunk hole 701 meets the detection requirements. The pillar 10 is connected to the upper hole 601 and the lower hole 602 on the pillar 6 by the screw 4, and the countersunk hole 701 set on the base 7 is connected to the center of the detection equipment by bolts, and the horizontal movement direction and angle of the pillar 10 are adjusted by the center marking line 9. After the installation is completed, the pillar 10 is inspected.

Claims

1. A detection device for detecting the performance of a vehicle suspension strut, comprising a strut (10) and a detection device, characterized in that: It also includes an upper positioning tool and a lower positioning tool, wherein the upper positioning tool and the lower positioning tool are both connected to the pillar (10), the upper positioning tool is connected to the detection equipment, and the center of the upper positioning tool after connection is coaxial with the axis of the detection equipment, the lower positioning tool is connected to the pillar (10) through a fastener, and after connection, the axis of the lower positioning tool and the pillar (10) are coaxial or at an angle θ, and the lower positioning tool is connected to the center of the detection equipment; The upper positioning tool comprises an upper seat (1), a positioning pin (2) and a pillar upper positioning (3), an installation space is provided in the upper seat (1), a first bolt (5) for connecting the upper seat (1) and the detection equipment is provided in the installation space, a plurality of positioning holes are provided at the bottom of the upper seat (1), a plurality of bosses are provided on the pillar upper positioning (3), each of the bosses contacts the bottom of the upper seat (1) and cooperates with the positioning hole through the positioning pin (2), the tail of the positioning pin (2) is connected to the pillar upper positioning (3) through a screw (4), the upper end of the pillar (10) is detachably connected to the pillar upper positioning (3), and the upper end of the pillar (10) after connection is coaxial with the pillar upper positioning (3); The lower positioning tool comprises a column (6), a base (7), a center marking line (9) and a stud (11), the column (6) is provided with an upper hole (601) and a lower hole (602), the upper hole (601) and the lower hole (602) are connected to the lower part of the pillar (10) through fasteners, the side of the base (7) is provided with an open groove, and the column (6) is located in the open groove, the bottom of the column (6) is provided with an L surface and a lug structure (603), the L surface is perpendicular to the center of the pillar (10) and fits with the upper surface of the base (7), the lug structure (603) is loosely matched with the open slot, the base (7) is provided with a countersunk hole (701) connected to the center of the detection equipment, the tail of the base (7) is provided with a second bolt (8), the side of the base (7) is provided with a stud (11) horizontally and vertically to the second bolt (8), the lug structure (603) is fixed to the open slot of the base (7) through the stud (11), the base (7) is provided with a center identification line (9) corresponding to the center of the countersunk hole (701), and the center identification line (9) is used to adjust the horizontal direction and angle of the support (10).

2. The detection device for detecting the performance of a vehicle suspension strut according to claim 1, characterized in that: The top of the positioning pin (2) is a conical surface, and the positioning pin (2) and the positioning hole at the bottom of the upper seat (1) are clearance-fitted.

3. The detection device for detecting the performance of a vehicle suspension strut according to claim 1, characterized in that: An opening is provided at the center of the positioning portion (3) on the support.

4. The detection device for detecting the performance of a vehicle suspension strut according to claim 1, characterized in that: The upper seat (1) is provided with a countersunk hole and a groove.

5. The detection device for detecting the performance of a vehicle suspension strut according to claim 1, characterized in that: One of the upper hole (601) and the lower hole (602) is a circular hole, and the other is a long hole or a square hole. The upper hole (601) and the lower hole (602) are connected to the pillar (10) via fasteners. The height difference H and the horizontal spacing between the upper hole (601) and the lower hole (602) are determined by the hole position on the pillar (10).

6. The detection device for detecting the performance of a vehicle suspension strut according to claim 1, characterized in that: The lug structure (603) is provided with a through hole or a bearing, and the offset distance Q between the lug structure (603) and the column (6) is determined by the installation position of the support (10) on the suspension or the detection requirements.

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