CN207806646U - A kind of lathe and its on-line measuring device - Google Patents

Abstract

The application provides an online detection device for a lathe, which is used to detect the inner hole of a workpiece, including a bracket used to be connected to the lathe, and an on-line detector installed in the lathe for detecting the inner hole of the workpiece and connected to the bracket , a cylinder for driving the on-line detector to move, and a connecting plate arranged between the on-line detector and the cylinder for connecting the on-line detector and the cylinder. The cylinder drives the online detector to move to detect the inner hole of the workpiece, thereby replacing manual detection and improving production efficiency. The present application also provides a lathe including an online detection device for the lathe, which reduces manual participation and is beneficial to improving the degree of automation of production.

Description

A lathe and its online detection device

technical field

The utility model relates to the field of mechanical detection, in particular to an on-line detection device for a lathe. The utility model also relates to a lathe.

Background technique

Generally, in practical industrial applications, most of the power transmission is inseparable from shaft parts. In order to meet the stable mechanical properties of related equipment, the hole parts that are usually matched with the shaft parts need to have higher precision. Naturally, in order to produce higher-precision hole parts, it is very necessary to detect the roundness and cylindricity of hole parts when processing hole parts.

However, in actual production, most hole parts are usually manually detected for their related shape and position tolerances after machining. There are many disadvantages in manually detecting the shape and position tolerances of hole parts, mainly in two aspects:

On the one hand, when manually inspecting hole-like parts, it is necessary to manually clamp the workpiece or hold the inspection equipment, which inevitably has a large error, and in order to improve the accuracy of the detection results, it is usually necessary to measure the hole-type parts multiple times or repeatedly clamp the hole-like parts. Especially in mass production, it takes a lot of time and energy;

On the other hand, when manually detecting hole parts, the tool cannot be adjusted in time according to the hole diameter deviation, which may lead to a lot of waste in serious cases. Greater labor intensity.

From the above, it can be seen that manual detection of hole parts inevitably consumes a lot of time and manpower, and the production efficiency is obviously low.

Utility model content

In view of this, the purpose of the utility model is to provide an on-line detection device of a lathe, so as to improve production efficiency. Another object of the present invention is to provide a lathe to improve the automation of production.

Concrete scheme of the present utility model is as follows:

The utility model provides an online detection device for a lathe, which is used for detecting the inner hole of a workpiece, and is characterized in that it includes a bracket for connecting with the lathe, and also includes:

An online detector installed in the lathe to detect the inner hole of the workpiece;

A cylinder connected to the support and used to drive the online detector to move;

A connecting plate arranged between the on-line detector and the cylinder for connecting the on-line detector and the cylinder.

Preferably, the protruding end of the cylinder is provided with a telescopic rod, and the telescopic rod is fixed to the side of the connecting plate.

Preferably, the centerline of the online detector does not coincide with the centerline of the cylinder.

Preferably, the online detector includes:

A guide column for matching with the inner hole of the workpiece;

a guide seat connected to the bottom of the guide column for supporting the guide column;

The measuring part is connected with the bottom of the guide seat and fixed on the upper surface of the connecting plate, and is used for measuring the inner hole of the workpiece.

Preferably, it also includes a protective cover arranged outside the measuring part for protecting the measuring part.

Preferably, the measuring unit includes:

A guide cylinder connected with the guide seat and used to detect the inner hole of the workpiece;

A feedback part that can selectively contact the guide cylinder and is used to cooperate with the guide cylinder to detect the inner hole of the workpiece;

The adjustment part is in contact with the feedback part and is used for adjusting the feedback part.

Preferably, the feedback part includes two metal contacts symmetrically arranged on both sides of the guide cylinder.

Preferably, the adjusting part includes two adjusting screws respectively used to adjust the movement of the two metal contacts in the horizontal direction.

The utility model also provides a lathe, which includes a workpiece fixture for clamping a workpiece, and is characterized in that it also includes the on-line detection device of the lathe for cooperating with the workpiece fixture to detect the inner hole of the workpiece as described in any one of the above.

With respect to the above-mentioned background technology, the utility model provides an online detection device for a lathe, including an online detection device installed in the lathe and a cylinder that drives the online detection device to move, wherein the online detection device and the cylinder pass through Connection plate connection.

Since the on-line detector is installed in the lathe, its purpose is to detect the diameter or shape tolerance of the inner hole of the workpiece. On the one hand, using the online detector instead of manual detection can eliminate some manual errors, and the detection result of the workpiece is more accurate, avoiding repeated detection, reducing labor intensity, and helping to improve production efficiency; on the other hand, the online Since the detector is installed in the lathe and cooperates with the cylinder, it can detect the shape and position tolerance of the workpiece at any time during the processing of the workpiece, and feedback the feedback deviation to the lathe control system in time, adjust the relative position of the tool and the workpiece, and compensate for the deviation in time , Reduce the waste of workpieces, shorten the production cycle of workpieces, and also help improve production efficiency.

Therefore, the on-line detection device of the lathe can improve the production efficiency by detecting the inner hole of the workpiece.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description It is only an embodiment of the utility model, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

Fig. 1 is the schematic diagram of a kind of specific embodiment of the on-line detection device of the lathe provided by the utility model embodiment;

FIG. 2 is a side view of FIG. 1 .

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In order to enable those skilled in the art to better understand the solution of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Please refer to FIG. 1 and FIG. 2 , FIG. 1 is a schematic diagram of a specific implementation of an on-line inspection device for a lathe provided by an embodiment of the present invention; FIG. 2 is a side view of FIG. 1 .

The embodiment of the utility model discloses an on-line detection device for a lathe, which includes a support 1 , an on-line detection instrument 2 , a cylinder 3 and a connecting plate 4 .

The bracket 1 is welded by a plurality of metal plates, and is usually used to be connected with a lathe, so as to support the online detection device of the lathe.

The on-line detector 2 is usually installed in the lathe, specifically, fixed on the upper surface of the connecting plate 4. In this specific embodiment, the on-line detector 2 is usually located under the workpiece during operation, and is used to detect the inner hole of the workpiece.

The cylinder 3 is usually connected with the bracket 1 and is used to drive the online detector 2 to move. Specifically, one side of the cylinder 3 is connected with the bracket 1 through bolts and nuts to realize fixation. In this specific embodiment, since the online detector 2 is placed vertically, usually the cylinder 3 is also placed vertically, and the upper end of the cylinder 3 is provided with a telescopic rod that can be stretched upwards, and the telescopic rod is usually connected to the bottom of the connecting plate 4 .

The connection plate 4 is usually a thin metal plate arranged between the on-line detector 2 and the cylinder 3 for connecting the on-line detector 2 and the cylinder 3 .

When the telescopic rod of the cylinder 3 stretches out under a certain pressure, it drives the connecting plate 4 to move upward, so that the online detector 2 connected to the upper surface of the connecting plate 4 moves upward together with the cylinder 3, so as to move upward to the inside of the workpiece. hole close. In the same way, the telescopic rod moves away from the inner hole of the workpiece when it is down. Since a part of the on-line detector 2 is fixed on the top of the connecting plate 4, and a part is fixed on the bottom of the connecting plate 4, the center of the on-line detector 2 cannot coincide with the center of the cylinder 3.

The online detector 2 includes a guide column 21 , a guide seat 22 and a measuring part 23 . Wherein, the guide post 21 is used to cooperate with the inner hole of the workpiece, specifically, the guide post 21 is inserted into the inner hole of the workpiece to be measured; in this specific embodiment, the guide post 21 is a cone to facilitate insertion into the workpiece At the same time, since the online detector 2 is usually used in the detection of the inner hole of the workpiece in mass production, for the convenience of detection, a mark can be set on the outer surface of the guide column 21 as a reference standard, so as to quickly judge the inner hole of the workpiece Of course, in order to facilitate the inner hole detection of small batches and multiple types of workpieces, the guide column 21 can be set as detachable. In addition, a pressure sensor or a displacement sensor can be installed outside the guide column 21 to transmit the pressure of the inner hole of the workpiece to the outer surface of the guide column 21 or the position of the inner hole of the workpiece corresponding to the outer surface of the guide column 21 to the lathe control system. During the processing of parts, adjust the relative position of the workpiece and the tool in time to compensate for the deviation in time. The guide post 21 can be used to detect the roundness of the inner hole of the workpiece in addition to the diameter size of the inner hole of the workpiece.

The guide seat 22 is connected to the bottom of the guide post 21 and is used to support the guide post 21. Generally, the guide seat 22 is a cylinder. In order to prevent the workpiece mounted on the guide post 21 from falling, the outer diameter of the guide seat 22 is usually larger than the guide post. 21 The outer diameter of the circular section at the bottom.

The side measuring part 23 is connected with the bottom of the guide seat 22 and the upper surface of the connecting plate 4 at the same time, and is used for measuring the inner hole of the workpiece. The measurement part 23 includes a guide cylinder 231 , a feedback part 232 and an adjustment part 233 . The guide cylinder 231 is usually connected with the guide seat 22 for detecting the inner hole of the workpiece. The feedback part 232 is in contact with the guide cylinder 231, and is used to cooperate with the guide cylinder 231 to detect the cylindricity of the inner hole of the workpiece; the feedback part 232 includes two metal contacts arranged symmetrically on both sides of the guide cylinder 231, of course, in order to improve the detection accuracy. Accuracy, the feedback part 232 can be four metal contacts, or multiple pairs of metal contacts arranged symmetrically with respect to the guide cylinder 231; however, the feedback part 232 and the guide cylinder 231 do not contact each other in the initial state, only when the workpiece is installed When on the guide column 21, the metal contact piece of the feedback part 232 is in contact with the outer surface of the guide column 231; in order to accurately detect the size of the inner hole of the workpiece, the strength of the metal contact piece should not be too high. The adjustment part 233 is connected with the feedback part 232, and is used to adjust the distance between the feedback part 232 and the guide cylinder 231; in this specific embodiment, the adjustment part 233 includes two metal contacts for adjusting the feedback part 232 The adjustment screw 2331 of the distance between the outer surface of the guide cylinder 231, generally, since the guide cylinder 231 is placed vertically, the adjustment screw 2331 usually moves horizontally to adjust the horizontal distance between the feedback part 232 and the guide cylinder 231; the adjustment part 233 also includes an adjustment bracket 2332 connected with the connecting plate 4 and used to support the adjustment screw 2331 . It should be noted that the distance between the two metal contacts and the outer surface of the guide cylinder 231 should be adjusted to be the same before measuring the workpiece each time. The measuring part 23 also includes a supporting base for connecting various parts. In this specific embodiment, the supporting base is connected to the upper surface of the connecting plate 4. Of course, each part of the measuring part 23 can also be directly fixed on the connecting plate 4. to replace the support base. In addition, a pressure sensor can also be provided outside the measuring part 23 for feeding back the processing size of the inner hole of the workpiece in cooperation with the feedback part 232 .

Since the workpiece to be tested can be fixed relative to the lathe under the clamping of the workpiece fixture, when the side wall of the inner hole of the workpiece is deflected relative to the central axis of the inner hole of the workpiece, the on-line detection device of the lathe may follow the workpiece to be tested. The inner holes are inclined together, causing the guide cylinder 231 to incline and contact with the metal contact piece on one side of the feedback part 232. The pressure sensor arranged outside the measuring part 23 can receive the pressure on the metal contact piece and transmit the pressure Through the pressure sensor fed back to the control system of the lathe, the cylindricity of the workpiece can be detected, so as to control the relative position of the workpiece and the tool, and compensate the deviation in time.

The on-line detection device of the lathe also includes a protective cover 5 arranged outside the measuring part 23 for protecting the measuring part 23 from iron filings.

As mentioned above, the online detection device of the lathe includes a bracket 1 for connecting with the lathe, an online detector 2 for detecting the inner hole of the workpiece, a cylinder 3 connected with the bracket 1, and a cylinder connected to the wire detector 2 and the cylinder 3. Between the connection plate 4. The cylinder 3 drives the online detector 2 to approach the inner hole of the workpiece, which replaces the manual inspection and reduces labor intensity. At the same time, the deviation can be compensated in time online, reducing waste, shortening the production cycle of the workpiece, and naturally improving production efficiency.

The utility model also provides a lathe, including a workpiece clamp for clamping the workpiece, and an online detection device for the lathe as described above, which is used to cooperate with the workpiece clamp to detect the inner hole of the workpiece. Other parts refer to the prior art and will not be repeated. A repeat.

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. a kind of on-line measuring device of lathe, for detecting inner hole of workpiece, which is characterized in that include for being connected with lathe Holder further includes：

On-line detector in lathe, for detecting inner hole of workpiece；

It is connected with the holder, the cylinder for driving the on-line detector movement；

Connection between the on-line detector and the cylinder, for connecting the on-line detector and the cylinder Plate.

2. the on-line measuring device of lathe according to claim 1, which is characterized in that the external part of the cylinder, which is equipped with, to be stretched Contracting bar, the telescopic rod are fixed on the side of the connecting plate.

3. the on-line measuring device of lathe according to claim 2, which is characterized in that the center line of the on-line detector It is misaligned with the center line of the cylinder.

4. the on-line measuring device of lathe according to any one of claims 1 to 3, which is characterized in that the on-line checking Instrument includes：

For with the matched guide post of inner hole of workpiece；

It is connected, is used to support the guide holder of the guide post with the guiding column bottom；

It is connected with the guide holder bottom and is fixed on the upper surface of the connecting plate, the measurement portion for measuring inner hole of workpiece.

5. the on-line measuring device of lathe according to claim 4, which is characterized in that further include being set to outside the measurement portion Side, the protective cover for protecting the measurement portion.

6. the on-line measuring device of lathe according to claim 5, which is characterized in that the measurement portion includes：

It is connected with the guide holder, the guide cylinder for detecting inner hole of workpiece；

It is optionally in contact with the guide cylinder, for coordinating the guide cylinder to detect the feedback section of inner hole of workpiece；

It is in contact with the feedback section, the adjustment portion for adjusting the feedback section.

7. the on-line measuring device of lathe according to claim 6, which is characterized in that the feedback section includes two mutual It is symmetrically arranged in the metal contact piece of the guide cylinder both sides.

8. the on-line measuring device of lathe according to claim 7, which is characterized in that the adjustment portion includes two difference The adjusting screw moved in the horizontal direction for adjusting two metal contact pieces.

9. a kind of lathe includes the work piece holder for clamping workpiece, which is characterized in that further include as claim 1 to 8 is any The on-line measuring device of the lathe for coordinating the work piece holder detection inner hole of workpiece described in.