Multi-step disc shaft coaxiality rapid detection tool

Abstract

The utility model discloses a multi-step disc shaft coaxiality rapid detection tool, which comprises a lifting driving device, an upper detection tool and a lower detection tool, the upper detection tool and the lower detection tool are oppositely arranged up and down, the top surface of the lower detection tool and the bottom surface of the lower detection tool are respectively concavely provided with a lower detection concave hole and an upper detection concave hole, and the lower detection concave hole and the upper detection concave hole are arranged along the same central line in the vertical direction. The lower detection concave hole is provided with a plurality of lower inner insertion holes which can be matched with the shapes of the circumferential surfaces of steps on the lower shaft body of the to-be-detected multi-step disc shaft, and the upper detection concave hole is provided with a plurality of upper inner insertion holes which can be matched with the shapes of the circumferential surfaces of steps on the upper shaft body of the to-be-detected multi-step disc shaft. The driving end of the lifting driving device is fixedly connected to the upper detection tool and can drive the upper detection tool to vertically move towards the direction where the lower detection tool is located. The upper inner insertion hole can detect whether the upper shaft body of the to-be-detected multi-step disc shaft inserted into the lower detection inner hole is inserted or not.

Description

TECHNICAL FIELD

[0001] The utility model relates to product detection technical field, concretely relates to a kind of multi-step disc shaft coaxial degree rapid detection tool. BACKGROUND

[0002] Multi-step disc shaft is a kind of mechanical component, usually used to transmit power from one component to another. The feature of this shaft is that there are multiple cylindrical parts of different diameters on its profile (i.e. "steps"), each step can have different length and diameter to adapt to different installation requirements or cooperate with other mechanical components. The coaxiality detection of multi-step disc shaft is to ensure the positional accuracy of each step part relative to the reference axis (usually the centerline of the shaft), which is very important for ensuring the smooth operation of mechanical transmission system and prolonging service life. The commonly used coaxiality detection method is to use a dial gauge (percentage table), install the multi-step disc shaft on a stable support, use the dial gauge probe to contact the outer circular surface of the step to be measured, and slowly rotate the shaft; record the maximum difference of the dial gauge reading, which reflects the eccentricity between the step and the reference axis. Since there are many steps on the multi-step disc shaft, according to the conventional coaxiality detection method, it is necessary to detect the outer circular surface of multiple steps, so the detection time of each multi-step disc shaft is longer, which will lead to low detection efficiency. SUMMARY

[0003] In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by the utility model is: how to provide a multi-step disc shaft coaxiality rapid detection tool which is simple and convenient to use, short in detection time and high in efficiency.

[0004] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0005] A multi-step disc shaft coaxiality rapid detection tool, characterized by: comprising lifting drive device and upper detection tool and lower detection tool oppositely arranged, the top surface of lower detection tool and the bottom surface of lower detection tool are respectively concave with lower detection concave hole and upper detection concave hole arranged along the vertical center line, the lower detection concave hole has a plurality of lower inner holes capable of cooperating with the shape of each step circumferential surface on the lower shaft of the multi-step disc shaft to be detected, the upper detection concave hole has a plurality of upper inner holes capable of cooperating with the shape of each step circumferential surface on the upper shaft of the multi-step disc shaft to be detected, the driving end of lifting drive device is fixedly connected to the upper detection tool and can drive the upper detection tool to move vertically towards the direction of lower detection tool, when the upper detection tool and the lower detection tool move in opposite directions, the upper inner hole can detect whether the upper shaft of the multi-step disc shaft to be detected inserted in the lower detection inner hole.

[0006] In the utility model, the lower detection recess and the upper detection recess are respectively shaped according to the outer circle shape of each step of the multi-step disc shaft which needs to be detected, that is to say, the lower shaft body and the upper shaft body of the standard coaxial disc shaft can be respectively inserted into the upper detection recess and the lower detection recess, so that each step outer circle of the disc shaft can be matched together with the upper inner insertion hole and the lower inner insertion hole. If the coaxiality deviation of the outer circle of a certain step of the disc shaft is large, the disc shaft cannot be inserted into the upper inner insertion hole or the lower inner insertion hole, thereby achieving the rapid detection of the coaxiality of each step outer circle of the disc shaft. Therefore, during the specific detection, the upper detection tool and the lower detection tool are separated first, and the lower shaft body of the disc shaft to be detected is inserted into the lower detection recess. If the lower shaft body can be inserted into the lower inner insertion hole without any interference, it indicates that the coaxiality of each step outer circle on the lower shaft body of the disc shaft meets the corresponding geometric tolerance. If the lower shaft body of the disc shaft cannot be inserted into the lower detection recess, it indicates that the coaxiality error is large and cannot meet the corresponding requirements. Then the upper detection tool is driven to move towards the direction of the lower detection tool, and whether the upper shaft body of the disc shaft can be inserted into the upper detection recess is observed. Similarly, if the upper shaft body can be inserted, it indicates that the coaxiality meets the corresponding requirements, and if the upper shaft body cannot be inserted, it indicates that the detection is unqualified.

[0007] As an optimization, opposite side surfaces of the lower detection tool and the upper detection tool are respectively provided with abutting surfaces which can abut together. When the two abutting surfaces abut together, the insertion detection requirement of the upper detection recess on the upper shaft body of the multi-step disc shaft to be detected inserted into the lower detection hole can be met. Since the upper detection tool cannot be better observed whether the upper shaft body of the disc shaft is inserted into the upper inner insertion hole when the upper detection tool moves downward due to the line of sight obstruction, the abutting surfaces are provided, that is, when the two abutting surfaces abut together, the upper shaft body of the standard qualified disc shaft can be inserted into the upper inner insertion hole. If the two abutting surfaces cannot abut together, it indicates that the upper shaft body of the disc shaft interferes with the upper inner insertion hole and cannot move downward any more, that is, the coaxiality of the disc shaft is unqualified.

[0008] As an optimization, the upper detection tool or the lower detection tool is provided with a prompt lamp, and two electrodes are respectively arranged on the two abutting surfaces and connected to the circuit of the prompt lamp. When the two electrodes contact together, the circuit of the prompt lamp is in a conduction state, and when the two electrodes are separated, the circuit of the prompt lamp is in a non-conduction state. When the two abutting surfaces abut together, the two electrodes also abut together at the same time, at this time, the circuit of the prompt lamp is in a conduction state, the prompt lamp is turned on, and the quality inspection personnel can be conveniently observed.

[0009] As an optimization, the upper inner insertion hole and the lower inner insertion hole are both through holes. The internal gas is discharged during the insertion process, so that the disc shaft can be better inserted.

[0010] As optimization, the top of the upper detection tool is fixedly connected with an upper base plate, the driving end of the lifting driving device is fixedly connected on the upper base plate, the bottom of the lower detection tool is fixedly connected with a lower base plate, a plurality of vertically extending guide pipes are uniformly and spacedly arranged on the top surface of the lower base plate around the center line direction of the lower detection hole, a fixing hole with the same center line as the guide pipe is respectively arranged on the lower base plate at the position corresponding to each guide pipe, the lower end of the guide pipe is inserted into the fixing hole and is fixedly connected with the inner wall of the fixing hole, a guide rod with the same center line as the corresponding guide pipe is respectively arranged on the bottom surface of the upper base plate at the position corresponding to each guide pipe, the upper end of the guide rod is fixedly connected on the upper base plate, the lower end of the guide rod is inserted into the inner hole of the corresponding guide pipe, and the guide rod can be slidingly matched with the guide pipe along the center line of the guide pipe, an upper exhaust hole with the same center line as the upper inner insertion hole is arranged on the upper base plate, and a lower exhaust hole with the same center line as the lower inner insertion hole is arranged on the lower base plate. The upper detection tool and the lower detection tool can be guided, and the coaxiality requirement therebetween can be met.

[0011] Compared with the prior art, the utility model discloses simple structure can fast to the each step outer circle coaxiality of the detection piece on the detection hole of setting with the structure consistent with the standard spare, the detection time of each detection piece is shortened, and the detection efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the sectional view of the utility model. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical scheme and advantage of the embodiment of the present application more clear, the technical scheme in the embodiment of the present application will be clearly and completely described below in conjunction with the drawings in the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, not all. The components of the embodiment of the present application described and shown in the drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiment in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0014] It should be noted that similar reference numerals and letters refer to like items in the accompanying drawings, and once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings. In the description of the application, it needs to be explained that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed during use, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second", "third", and the like are only used for differentiation and cannot be understood as indicating or implying relative importance. In addition, the terms "horizontal", "vertical", and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be absolutely horizontal, but can be slightly inclined. In the description of the application, it also needs to be explained that unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0015] As Figure 1 shown, the multi-step disc shaft coaxiality rapid detection tool in the embodiment includes a lifting driving device and an upper detection tool 1 and a lower detection tool 2 arranged opposite to each other, the top surface of the lower detection tool 2 and the bottom surface of the upper detection tool 1 are respectively concavely provided with a lower detection concave hole and an upper detection concave hole arranged along the vertical direction and concentric with the center line, the lower detection concave hole has a plurality of lower insertion holes capable of cooperating with the shape of each step circumferential surface on the lower shaft of the multi-step disc shaft to be detected, the upper detection concave hole has a plurality of upper insertion holes capable of cooperating with the shape of each step circumferential surface on the upper shaft of the multi-step disc shaft to be detected, the driving end of the lifting driving device is fixedly connected to the upper detection tool 1 and can drive the upper detection tool 1 to move vertically towards the direction where the lower detection tool 2 is located, when the upper detection tool 1 and the lower detection tool 2 move in opposite directions, the upper insertion hole can detect whether the upper shaft of the multi-step disc shaft to be detected inserted in the lower detection hole is inserted.

[0016] In the embodiment, the lower detection tool 2 and the upper detection tool 1 are respectively provided with abutting surfaces capable of abutting together on opposite sides of the lower detection tool 2 and the upper detection tool 1, and when the two abutting surfaces abut together, the insertion detection requirement of the upper detection concave hole to the upper shaft body of the multi-step shaft to be detected inserted in the lower detection inner hole can be met.

[0017] In the embodiment, the upper detection tool 1 or the lower detection tool 2 is provided with a prompt lamp, and two electrode sheets are respectively arranged on the two abutting surfaces, and the two electrode sheets are respectively connected to the circuit of the prompt lamp, when the two electrode sheets contact together, the circuit of the prompt lamp is in a conduction state, and when the two electrode sheets are separated, the circuit of the prompt lamp is in a non-conduction state.

[0018] In the embodiment, the upper inner insertion hole and the lower inner insertion hole are both through holes.

[0019] In the embodiment, the upper detection tool 1 is fixedly connected with an upper backing plate 3 at the top, the driving end of the lifting driving device is fixedly connected to the upper backing plate 3, the lower detection tool 2 is fixedly connected with a lower backing plate 4 at the bottom, a plurality of vertically extending guide pipes 5 are uniformly and spacedly arranged on the top surface of the lower backing plate 4 in the center line direction of the lower detection concave hole, a fixed hole with the same center line as the guide pipe 5 is arranged on the lower backing plate 4 at a position corresponding to each guide pipe 5, the lower end of the guide pipe 5 is inserted into the fixed hole and fixedly connected to the inner wall of the fixed hole, a guide rod 6 with the same center line as the corresponding guide pipe 5 is arranged on the bottom surface of the upper backing plate 3 at a position corresponding to each guide pipe 5, the upper end of the guide rod 6 is fixedly connected to the upper backing plate 3, the lower end of the guide rod 6 is inserted into the inner hole of the corresponding guide pipe 5, and the guide rod 6 is slidably connected to the guide pipe 5 along the center line of the guide pipe 5, an upper exhaust hole 7 with the same center line as the upper inner insertion hole is arranged on the upper backing plate 3, and a lower exhaust hole 8 with the same center line as the lower inner insertion hole is arranged on the lower backing plate 4, and in the specific implementation, a communication exhaust hole is also arranged on the side surface of the lower detection tool 2 at a position corresponding to the position of the shaft shoulder of the multi-step shaft to be detected for limiting the multi-step shaft to be detected, so as to better facilitate the insertion of the multi-step shaft to be detected.

[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application rather than limit the present application, and although the present application has been described by referring to the preferred embodiments of the present application, those skilled in the art should understand that various changes can be made in form and details without departing from the spirit and scope of the present application defined in the appended claims.

Claims

1. A tooling for rapid detection of coaxiality of a multi-step disc shaft, characterized in that: The device comprises a lifting driving device and upper and lower detection tools arranged oppositely, the top surface of the lower detection tool and the bottom surface of the lower detection tool are respectively concave with a lower detection recess hole and an upper detection recess hole arranged along the vertical direction and concentric with the center line, the lower detection recess hole has a plurality of lower inner holes capable of cooperating with the shape of each step circumferential surface of the lower shaft of the multi-step shaft to be detected, the upper detection recess hole has a plurality of upper inner holes capable of cooperating with the shape of each step circumferential surface of the upper shaft of the multi-step shaft to be detected, the driving end of the lifting driving device is fixedly connected to the upper detection tool and can drive the upper detection tool to move vertically towards the direction of the lower detection tool, when the upper detection tool and the lower detection tool move in opposite directions, the upper inner hole can detect whether the upper shaft of the multi-step shaft to be detected inserted in the lower detection inner hole.

2. The multi-step disc shaft coaxiality rapid detection tooling according to claim 1, characterized in that: The opposite side surfaces of the lower detection tool and the upper detection tool are respectively provided with abutting surfaces capable of abutting together, when the two abutting surfaces abut against each other, the abutting surfaces can meet the insertion detection requirements of the upper detection recess hole on the upper shaft of the multi-step shaft to be detected inserted in the lower detection inner hole.

3. The quick detection tooling for multi-step disc shaft coaxiality according to claim 1, characterized in that: The upper detection tool or the lower detection tool is provided with a prompt light, two electrode sheets are respectively installed on the two abutting surfaces, and the two electrode sheets are respectively connected to the circuit of the prompt light, when the two electrode sheets contact together, the circuit of the prompt light is in a conduction state, and when the two electrode sheets are separated, the circuit of the prompt light is in a disconnected state.

4. The quick detection tool for multi-step disc shaft coaxiality according to claim 1, characterized in that: The upper inner hole and the lower inner hole are both through holes.

5. The multi-step disc shaft coaxiality rapid detection tooling of claim 4, wherein: The top of the upper detection tool is fixedly connected with an upper backing plate, the driving end of the lifting driving device is fixedly connected to the upper backing plate, the bottom of the lower detection tool is fixedly connected with a lower backing plate, the top surface of the lower backing plate is uniformly and interval provided with a plurality of vertically extending guide pipes around the center line direction of the lower detection recess hole, the lower backing plate is respectively provided with a fixed hole concentric with the guide pipe at the position corresponding to each guide pipe, the lower end of the guide pipe is inserted into the fixed hole and fixedly connected with the inner wall of the fixed hole, the bottom surface of the upper backing plate is respectively provided with a guide rod concentric with the corresponding guide pipe at the position corresponding to each guide pipe, the upper end of the guide rod is fixedly connected to the upper backing plate, the lower end of the guide rod is inserted into the inner hole of the corresponding guide pipe, and the guide rod can slide with the guide pipe along the center line of the guide pipe, the upper backing plate is provided with an upper exhaust hole arranged concentrically with the upper inner hole, and the lower backing plate is provided with a lower exhaust hole arranged concentrically with the lower inner hole.

Images