阅读说明：本技术 一种机油泵端面间隙检测装置 (Oil pump end face clearance detection device ) 是由 罗大志 袁晓斌 肖迪颖 于 2019-10-10 设计创作，主要内容包括：本发明公开了一种机油泵端面间隙检测装置,包括基座、夹具、测头、测头浮动座、测头运送部、位移传感器和控制系统；所述测头包括多个长度与外径不等的圆筒体,且多个圆筒体的长度与外径成反比,每个圆筒体的上部均通过至少三个弹簧导向杆安装在测头浮动座上,每个圆筒体的下端面均开有缺口；所述位移传感器安装在所述测头浮动座上且与控制系统相连,位移传感器的数量与圆筒体的数量相同；所述测头运送部安装在基座的上部,所述测头浮动座与测头运送部相连,所述夹具安装在基座的下部,所述测头浮动座在测头运送部的作用下能够相对夹具作纵向运动。该检测装置可提高检测准确率和检测效率,能避免漏检、误判现象的发生。(The invention discloses an oil pump end face gap detection device which comprises a base, a clamp, a measuring head floating seat, a measuring head conveying part, a displacement sensor and a control system, wherein the measuring head floating seat is arranged on the base; the measuring head comprises a plurality of cylinders with different lengths and outer diameters, the lengths of the cylinders are inversely proportional to the outer diameters, the upper part of each cylinder is arranged on the measuring head floating seat through at least three spring guide rods, and the lower end surface of each cylinder is provided with a notch; the displacement sensors are arranged on the measuring head floating seat and connected with the control system, and the number of the displacement sensors is the same as that of the cylinders; the measuring head conveying part is arranged on the upper portion of the base, the measuring head floating seat is connected with the measuring head conveying part, the clamp is arranged on the lower portion of the base, and the measuring head floating seat can move longitudinally relative to the clamp under the action of the measuring head conveying part. The detection device can improve the detection accuracy and the detection efficiency, and can avoid the phenomena of missing detection and erroneous judgment.)

1. The utility model provides an oil pump end face clearance detection device which characterized in that: the measuring head measuring device comprises a base (1), a clamp (2), a measuring head (5), a measuring head floating seat (7), a measuring head conveying part (4), a displacement sensor (6) and a control system; the measuring head (5) comprises a plurality of cylinders with different lengths and outer diameters, the lengths of the cylinders are inversely proportional to the outer diameters, the upper part of each cylinder is arranged on the measuring head floating seat (7) through at least three spring guide rods, and the lower end surface of each cylinder is provided with a notch; the displacement sensors (6) are mounted on the measuring head floating seat (7) and connected with a control system, and the number of the displacement sensors (6) is the same as that of the cylinders; the measuring head conveying part (4) is installed on the upper portion of the base (1), the measuring head floating seat (7) is connected with the measuring head conveying part (4), the clamp (2) is installed on the lower portion of the base (1), and the measuring head floating seat (7) can move longitudinally relative to the clamp under the action of the measuring head conveying part (4).

2. the oil pump end face gap detection apparatus according to claim 1, characterized in that: the detection device further comprises a clamp conveying part (8), the base (1) is L-shaped as a whole, and the clamp (2) can move transversely along the X axis of the base (1) under the action of the clamp conveying part (8).

3. The oil pump end face gap detection apparatus according to claim 1 or 2, characterized in that: the measuring head (5) comprises a first cylinder, a second cylinder and a third cylinder which are mutually independent, wherein the second cylinder is positioned in the first cylinder, the third cylinder is positioned in the second cylinder, the length of the second cylinder is greater than that of the first cylinder, and the length of the third cylinder is greater than or equal to that of the second cylinder.

4. the oil pump end face gap detection apparatus according to claim 1 or 2, characterized in that: the measuring head (5) comprises a first cylinder, a second cylinder and a third cylinder which are mutually independent, wherein the second cylinder and the third cylinder are arranged in the first cylinder in parallel, the length of the second cylinder is greater than that of the first cylinder, and the length of the third cylinder is equal to that of the second cylinder.

5. The oil pump end face gap detection apparatus according to claim 2, characterized in that: the measuring head conveying part (4) and the clamp conveying part (8) are both cylinders.

Technical Field

The invention relates to a detection device, in particular to a device for detecting end face clearance of an oil pump.

Background

The end face clearance between the engine oil pump oil pumping parts (inner and outer rotors, gear pairs and the like) and the shell is a key parameter influencing the performance of the engine oil pump, so that the end face clearance can be rapidly identified and unqualified in the final assembly process, and the method plays an important role in improving the quality of the oil pump.

In the existing oil pump assembling process, the following problems exist in the detection of the end face clearance:

1) A special dial indicator checking tool is adopted for manual hand-held detection, the randomness of detection points is high, and the state of a detected plane cannot be comprehensively reflected;

2) The manual detection efficiency is low, and the error is large;

3) The possibility of missing detection, misjudgment and the like exists in manual detection;

4) The existing detection data cannot be automatically stored and has no traceability, and the manual recording has great risks of omission and error recording.

Disclosure of Invention

The invention aims to provide an oil pump end face gap detection device, which can improve the detection accuracy and the detection efficiency and avoid the phenomena of missing detection and misjudgment.

In order to solve the technical problems, the invention adopts the following technical scheme: a device for detecting the end face clearance of an oil pump comprises a base, a clamp, a measuring head floating seat, a measuring head conveying part, a displacement sensor and a control system; the measuring head comprises a plurality of cylinders with different lengths and outer diameters, the lengths of the cylinders are inversely proportional to the outer diameters, the upper part of each cylinder is arranged on the measuring head floating seat through at least three spring guide rods, and the lower end surface of each cylinder is provided with a notch; the displacement sensors are mounted on the measuring head floating seat and connected with the control system, and the number of the displacement sensors is the same as that of the cylinders; the measuring head conveying part is installed on the upper portion of the base, the measuring head floating seat is connected with the measuring head conveying part, the clamp is installed on the lower portion of the base, and the measuring head floating seat can move longitudinally relative to the clamp under the action of the measuring head conveying part.

the working process of the technical scheme is as follows: the workpiece is manually installed on the clamp, the control system is started, the measuring head is driven by the measuring head conveying portion to contact with the workpiece and compress the spring guide rod on the measuring head floating seat to move, then the displacement sensor is triggered, the control system carries out calculation and judgment according to data transmitted by the displacement sensor, after the test is completed, the measuring head conveying portion returns to the initial state, and the measuring head returns to the original state.

According to a further technical scheme, the detection device further comprises a clamp conveying part, the base is L-shaped as a whole, and the clamp can move transversely along the X axis of the base under the action of the clamp conveying part. This facilitates the mounting and removal of the workpiece to and from the fixture.

in one embodiment, the measuring head comprises a first cylinder, a second cylinder and a third cylinder which are arranged independently of each other, wherein the second cylinder is positioned in the first cylinder, the third cylinder is positioned in the second cylinder, the length of the second cylinder is greater than that of the first cylinder, and the length of the third cylinder is greater than or equal to that of the second cylinder. The structure is suitable for detecting the end face clearance of the rotor pump and the vane pump.

In one embodiment, the measuring head comprises a first cylinder, a second cylinder and a third cylinder which are arranged independently, wherein the second cylinder and the third cylinder are arranged in parallel in the first cylinder, the length of the second cylinder is greater than that of the first cylinder, and the length of the third cylinder is equal to that of the second cylinder. This kind of structure is applicable to detecting the terminal surface clearance of gear pump.

In one embodiment, the probe conveying portion and the jig conveying portion are both air cylinders.

The invention has the beneficial effects that: 1) the automation and intelligence degree is high, and the detection efficiency is improved; 2) the end surface of the cylinder body is contacted with the end surface of the detected part, and the detection accuracy is higher than the accuracy of point contact; 3) because the lower end surface of each cylinder body is provided with the notch, positions which can influence the detection precision can be avoided; 4) traceability of data can be achieved.

Drawings

FIG. 1 is a schematic view of an overall structure of a detection apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a detecting device according to an embodiment of the present invention;

FIG. 3 is a right side view of FIG. 1;

The reference signs are:

1-base 2-clamp 3-workpiece

4-probe transport part 5-probe 6-displacement sensor

7-measuring head floating seat 8-clamp conveying part.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

It should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used broadly in the present invention, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

further, in the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not in direct contact, but via another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature. The terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the invention.