A dustproof test fixture for automobile motors

Abstract

The utility model discloses a dustproof test fixture for automobile motors, comprising: a bottom plate; a top plate, which is located above the bottom plate; a plurality of uprights, which are supported between the bottom plate and the top plate; a translation mechanism, which is mounted on the bottom plate; a first positioning mold, which is detachably connected to the moving end of the translation mechanism, and a first motor profiling cavity is provided on the top of the first positioning mold; a sealing ring, which is arranged on the top of the first positioning mold and is arranged around the first motor profiling cavity; a lifting mechanism, which is mounted on the top plate; a second positioning mold, which is detachably connected to the moving end of the lifting mechanism, and a second motor profiling cavity is provided on the bottom of the second positioning mold; a through hole is provided on the second positioning mold, which is communicated with the second motor profiling cavity and is used for connecting an air tightness detector; when a dustproof test is performed, the second positioning mold is sealed and covered on the first positioning mold; and two ends of the motor to be tested are respectively matched and arranged in the first motor profiling cavity and the second motor profiling cavity.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor detection, and particularly relates to a dustproof test fixture for automobile motors. Background Art

[0002] If the air tightness of the automobile motor is not good, the motor is easily damaged by short circuit due to dust entering, so the motor sealing test is a way of dustproof test. Vacuum sealing test is a commonly used motor air tightness detection method. The motor to be tested is placed in a closed room and the air pressure in the sealed room is reduced by vacuuming. Then monitor for a certain period of time to detect whether there is gas leakage. If there is gas leakage, it means that the motor is leaking and the dustproof test does not meet the standard.

[0003] The existing dustproof test fixture can generally only be used to test fixed type motors, and when the motor to be tested is large in size, it is inconvenient to install the motor. Utility Model Content

[0004] The utility model aims to provide an automobile motor dustproof test fixture, which can replace positioning molds to be suitable for motors of different specifications and is convenient for installing the motor to be tested.

[0005] The technical solution provided by the utility model is:

[0006] A dustproof test fixture for automobile motors, comprising:

[0007] Base plate;

[0008] A top plate, which is located above the bottom plate and parallel to the bottom plate;

[0009] a plurality of columns supported between the bottom plate and the top plate;

[0010] A translation mechanism, which is mounted on the bottom plate;

[0011] A first positioning mold, which is detachably connected to the moving end of the translation mechanism, and a first motor-shaped cavity is formed on the top of the first positioning mold;

[0012] A sealing ring is arranged on the top of the first positioning mold and is arranged around the first motor contour cavity;

[0013] A lifting mechanism mounted on the top plate;

[0014] A second positioning mold is detachably connected to the moving end of the lifting mechanism, and a second motor-shaped cavity is provided at the bottom of the second positioning mold;

[0015] The second positioning mold is provided with a through hole, which is connected to the second motor profiling cavity and is used to connect to an air tightness detector;

[0016] When performing air tightness testing, the second positioning mold is sealed and covered on the first positioning mold; the two ends of the motor to be tested are matched and arranged in the first motor profiling cavity and the second motor profiling cavity respectively.

[0017] Preferably, the translation mechanism comprises:

[0018] A rodless cylinder, which is arranged along the length direction of the base plate;

[0019] A mounting plate, which is disposed above the rodless cylinder and is fixedly connected to a slider of the rodless cylinder;

[0020] Wherein, the first positioning mold is detachably connected to the mounting plate.

[0021] Preferably, the automobile motor dustproof test fixture further comprises:

[0022] Two guide rails, which are fixedly mounted on the bottom plate and are respectively located on both sides of the rodless cylinder and are arranged parallel to the rodless cylinder;

[0023] Wherein, the bottom of the mounting plate is connected to the two guide rails via a sliding block.

[0024] Preferably, the first positioning mold is connected to the mounting plate via a toggle clamp.

[0025] Preferably, the lifting mechanism comprises:

[0026] Lifting cylinder;

[0027] A mounting seat, which is fixedly connected to the piston rod of the lifting cylinder;

[0028] Wherein, the second positioning mold is detachably connected to the mounting seat.

[0029] Preferably, the automobile motor dustproof test fixture further comprises:

[0030] A plurality of guide posts, one end of each guide post is fixedly connected to the top of the mounting seat, and the other end of each guide post is movably passed through the top plate.

[0031] Preferably, the second positioning mold is connected to the mounting seat via a toggle clamp.

[0032] Preferably, a wedge-shaped groove is provided at the bottom of the mounting seat;

[0033] Wherein, the top of the second positioning mold is in an inverted trapezoidal shape and is matched and engaged in the wedge-shaped groove.

[0034] Preferably, limit buffers are respectively provided at both ends of the bottom plate.

[0035] Preferably, the limit buffer is a hydraulic buffer.

[0036] The beneficial effects of the utility model are:

[0037] The automobile motor dustproof test fixture provided by the utility model can replace the positioning mold to be suitable for motors of different specifications, and is convenient for installing the motor to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 The utility model is a schematic diagram of the overall structure of the automobile motor dustproof test fixture.

[0039] Figure 2 It is a schematic diagram of the rear side of the automobile motor dustproof test fixture described in the utility model.

[0040] Figure 3 It is a schematic diagram of the translation mechanism described in the utility model.

[0041] Figure 4 It is a schematic diagram of the front side of the lifting mechanism described in the utility model.

[0042] Figure 5 It is a schematic diagram of the rear side of the lifting mechanism described in the utility model. DETAILED DESCRIPTION

[0043] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0044] like Figure 1-5 As shown, the utility model provides a dustproof test fixture for automobile motors, which mainly includes: a bottom plate 110, a top plate 120, a column 130, a first positioning mold 210, a second positioning mold 220, a lifting mechanism 230 and a translation mechanism 240.

[0045] The bottom plate 110 is arranged horizontally. The top plate 120 is arranged above the bottom plate 110 and is parallel to the bottom plate 110. Four columns 130 are vertically supported between the bottom plate 110 and the top plate 120, and the four columns 130 are arranged near the four corners of the top plate 120 respectively.

[0046] The translation mechanism 240 is horizontally mounted on the bottom plate 110. The first positioning mold 210 is detachably connected to the moving end of the translation mechanism 240, and a first motor profiling cavity 211 is formed on the top of the first positioning mold 210. A sealing ring 212 is disposed on the top of the first positioning mold 210 and is disposed around the first motor profiling cavity 211.

[0047] like Figure 3 As shown, in this embodiment, the translation mechanism 240 includes: a rodless cylinder 241, which is arranged along the length direction of the bottom plate 110; a mounting plate 242 is arranged above the rodless cylinder 241 and is fixedly connected to the slider 241a of the rodless cylinder 241. The first positioning mold 210 is detachably connected to the mounting plate 242.

[0048] As a preferred embodiment, the first positioning mold 210 is connected to the mounting plate 242 via two toggle clamps 243. The two toggle clamps 243 are respectively disposed near the two ends of the first positioning mold 210. The first positioning mold 210 can be quickly installed and removed by connecting with the toggle clamps 243.

[0049] A translation guide mechanism is also provided on the bottom plate 110. The translation guide mechanism includes two guide rails 250, which are fixedly mounted on the bottom plate 110 and are respectively located on both sides of the rodless cylinder 241 and are arranged parallel to the rodless cylinder 241. Two sliders 242a are provided at the bottom of the mounting plate 242, and are respectively connected to the two guide rails 250 through the two sliders 242a.

[0050] The two ends of the bottom plate 110 in the length direction are respectively provided with limit buffers 111. In this embodiment, the limit buffers 111 are hydraulic buffers. By providing the limit buffers 111, the moving range of the first positioning mold 210 can be limited to ensure the stable operation of the test fixture.

[0051] The lifting mechanism 230 is installed on the top plate 120. The second positioning mold 220 is detachably connected to the moving end of the lifting mechanism 230, and a second motor profiling cavity is provided at the bottom of the second positioning mold 220. A through hole 221 is provided on the second positioning mold 220, and the through hole 221 is connected to the second motor profiling cavity for connecting the airtightness detector.

[0052] like Figure 4-5 As shown, in this embodiment, the lifting mechanism 230 includes: a lifting cylinder 231, which is installed on the top plate 120, and the piston rod of the lifting cylinder 231 passes through the top plate 120 and extends to the bottom of the top plate 120; a mounting seat 232, which is fixedly connected to the lower end of the piston rod of the lifting cylinder 231; wherein the second positioning mold 220 is detachably connected to the mounting seat 232.

[0053] The lifting mechanism 230 is guided by a plurality of guide posts 260. In the present embodiment, a total of four guide posts 260 are provided, and the lower end of the guide post 260 is fixedly connected to the top of the mounting seat 232, and the other end of the guide post 260 is movably passed through the top plate 120.

[0054] The second positioning mold 220 is connected to the mounting seat 232 through a toggle clamp 233. In this embodiment, for easy installation, a limit baffle 234 is provided on one side of the mounting seat 232 (along the length direction of the bottom plate 110), and the inner side of the limit baffle 234 has a groove, and the top of the second positioning mold 220 is matched and embedded in the groove. Two toggle clamps 233 are provided on the opposite sides of the limit baffle 234.

[0055] A wedge-shaped groove 232a is formed at the bottom of the mounting seat 233; the cross section of the top of the second positioning mold 220 (the interface along the width direction of the bottom plate 110) is inverted trapezoidal, and the top of the second positioning mold 220 is matched and engaged in the wedge-shaped groove 232a. When installing the positioning mold, the second positioning mold 220 is pushed in along the wedge-shaped groove 232a from the side where the toggle clamp 233 is provided, and the second positioning mold 220 abuts against the limiting baffle 234, and the second positioning mold 220 is locked by the toggle clamp 233.

[0056] When performing dustproof (airtightness) testing, the second positioning mold 220 is sealed and covered on the first positioning mold 210; the first motor profiling cavity 211 and the second motor profiling cavity are combined into a sealed cavity matching the shape of the motor, and the motor to be tested is matched and arranged in the sealed cavity.

[0057] Preferably, two positioning columns 210a are provided on the top of the first positioning mold 210, and the two positioning columns 210a are respectively arranged close to a set of diagonals of the first positioning mold 210; correspondingly, a positioning groove matching the two positioning columns 210a is provided on the bottom of the second positioning mold 220. By matching the positioning columns 210a with the positioning grooves, the positions of the first positioning mold 210 and the second positioning mold 220 can be aligned, thereby ensuring the sealing between the first positioning mold 210 and the second positioning mold 220.

[0058] When testing motors of different specifications and models, the first positioning mold 210 is moved to a side away from the second positioning mold 220 (at the limit buffer 111) by the translation mechanism 240, and the first positioning mold 210 can be removed by opening the elbow clamp 243. After the first positioning mold 210 is placed on the mounting plate 242, the first positioning mold 210 is replaced by locking it with the elbow clamp 243. At the same time, the motor to be tested can be installed at the position where the first positioning mold 210 is replaced, so that interference with the second positioning mold 220 or other components when installing the motor can be avoided, which is more convenient for the installation of the motor. After the installation of the motor to be tested is completed, the translation mechanism 240 moves the first positioning mold 210 to the bottom of the second positioning mold (at another limit buffer 111), and the lifting mechanism 230 drives the second positioning mold 240 downward, covers the first positioning mold 210, and then the test can be started.

[0059] The automobile motor dustproof test fixture provided by the utility model can replace the positioning mold to be suitable for motors of different specifications, and is convenient for installing the motor to be tested.

[0060] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A dustproof test fixture for automobile motors, characterized in that: include: Base plate; A top plate, which is located above the bottom plate and parallel to the bottom plate; a plurality of columns supported between the bottom plate and the top plate; A translation mechanism, which is mounted on the bottom plate; A first positioning mold, which is detachably connected to the moving end of the translation mechanism, and a first motor-shaped cavity is formed on the top of the first positioning mold; A sealing ring is arranged on the top of the first positioning mold and is arranged around the first motor contour cavity; A lifting mechanism mounted on the top plate; A second positioning mold is detachably connected to the moving end of the lifting mechanism, and a second motor-shaped cavity is provided at the bottom of the second positioning mold; The second positioning mold is provided with a through hole, which is connected to the second motor profiling cavity and is used to connect to an air tightness detector; When the dustproof test is performed, the second positioning mold is sealed and covered on the first positioning mold; the two ends of the motor to be tested are matched and arranged in the first motor profiling cavity and the second motor profiling cavity respectively.

2. The automobile motor dust test fixture according to claim 1 is characterized in that: The translation mechanism comprises: A rodless cylinder, which is arranged along the length direction of the base plate; A mounting plate, which is disposed above the rodless cylinder and is fixedly connected to a slider of the rodless cylinder; Wherein, the first positioning mold is detachably connected to the mounting plate.

3. The automobile motor dust test fixture according to claim 2, characterized in that: Also includes: Two guide rails, which are fixedly mounted on the bottom plate and are respectively located on both sides of the rodless cylinder and are arranged parallel to the rodless cylinder; Wherein, the bottom of the mounting plate is connected to the two guide rails via a sliding block.

4. The automobile motor dust test fixture according to claim 3 is characterized in that: The first positioning mold is connected to the mounting plate through a toggle clamp.

5. The automobile motor dust test fixture according to any one of claims 1 to 4, characterized in that: The lifting mechanism comprises: Lifting cylinder; A mounting seat, which is fixedly connected to the piston rod of the lifting cylinder; Wherein, the second positioning mold is detachably connected to the mounting seat.

6. The automobile motor dust test fixture according to claim 5, characterized in that: Also includes: A plurality of guide posts, one end of each guide post is fixedly connected to the top of the mounting seat, and the other end of each guide post is movably passed through the top plate.

7. The automobile motor dust test fixture according to claim 6, characterized in that: The second positioning mold is connected to the mounting seat through a toggle clamp.

8. The automobile motor dust test fixture according to claim 7, characterized in that: A wedge-shaped groove is formed at the bottom of the mounting seat; The top of the second positioning mold is in an inverted trapezoidal shape and is matched and engaged in the wedge-shaped groove.

9. The automobile motor dust test fixture according to claim 8, characterized in that: The two ends of the bottom plate are respectively provided with limit buffers.

10. The automobile motor dust test fixture according to claim 9, characterized in that: The limit buffer adopts a hydraulic buffer.

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