CN219551397U - Device for measuring depth of cylinder sleeve groove - Google Patents

Abstract

The utility model discloses a device for measuring the depth of a cylinder sleeve groove, which belongs to the field of measuring instruments and comprises a lever meter with a meter frame, wherein a supporting plate is arranged on the magnetic meter frame, and a fine tuning screw rod and a connecting block which uses a spring to be connected with the bottom of the lever meter are arranged on the supporting plate. The utility model has simple structure, simple and easy-to-learn operation and high measurement accuracy, can rapidly obtain the measurement structure, can effectively and timely guide production, and greatly reduces the detection cost and the trial-and-error cost of production errors.

Description

Device for measuring depth of cylinder sleeve groove

Technical Field

The utility model relates to the field of measuring instruments, in particular to a device for measuring the depth of a cylinder sleeve groove.

Background

In industrial production, parts with special shapes are difficult to measure or have high measuring cost due to small size and special shape. Taking a diesel engine cylinder sleeve of a certain model as an example, after rolling processing of neck grooves of the diesel engine cylinder sleeve, the depth requirement of the bottoms of the grooves from the sealing surface of the cylinder sleeve isSince the groove radius is R2 only, this +.>The size cannot be accurately measured by the universal gauge, and the size is detected by a special expensive instrument, so that the processing data cannot be conveniently and timely adjusted.

Depth of neck groove of cylinder sleeveIs a critical dimension, if the dimension deviates, the assembly of the cylinder sleeve and the whole performance of the diesel engine are all adversely affected, so that the technical requirement must be strictly ensured, and in order to detect the dimension, a company is specially purchased an imported instrument FTS-I120 contour detector. During detection, a workpiece is placed on an inclined V-shaped tool, a compression nut is screwed to fix the workpiece, a ruby measuring head slides and samples along the action track from the outer circle of phi 149.5 to the inclined plane of 25 degrees to the end face of the R2 arc groove to the end face of the flange, and a data result is displayed on a display screen. The whole inspection process comprises the time consumption of the path from the production site to the precise inspection chamber, the instrument starting time, the workpiece clamping time and the detection time which are about 25 minutes in total, the detection time is too long and the operation is complex, and the guidance opinion on the production is difficult to be provided in time. Smoothness of the surface of the part, detected by a profile detectorThe method is higher in solving, because the outer circle of the cylinder sleeve is in a semi-finish turning state, the smoothness is poor (Rz 16), and the measured data can be affected by the surface roughness of the workpiece and inaccurate, so that the finished machining of the workpiece to be inspected is required to be specially finished, the surface smoothness is improved, and then the inspection is carried out, and inconvenience is brought to production. And more importantly, the finished workpiece also wears out the gauge head during inspection on the profiler, which is expensive and consumes about 16 yuan per inspection calculated. Therefore, detection by using a contour detector is only possible as a sampling inspection and a review with a small probability, and is not suitable for frequent detection.

Therefore, a detection instrument which is simple in structure, easy to operate and economical and practical is needed to accurately measure the depth of the cylinder sleeve groove at any time so as to timely find out that the dimension in production does not reach the standard and timely guide production.

Disclosure of Invention

The utility model aims to provide a device for measuring the depth of a cylinder sleeve groove, which can accurately measure the depth of the cylinder sleeve groove in time and at low cost.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a measure cylinder liner recess degree of depth device, includes the magnetometer frame and sets up the lever table on the magnetometer frame, and the fixed backup pad that is provided with on the magnetometer frame, the backup pad is relative with the lever table in the below position of lever table, is provided with the internal thread hole that link up in the backup pad, and internal thread hole is provided with the fine setting screw rod, and the fine setting screw rod is provided with the external screw thread that can with internal thread hole intermeshing outward, and the lever table bottom is touched at the fine setting screw rod top, and the lever table bottom connection is provided with convex connecting block, passes through spring coupling between connecting block and the backup pad.

The technical scheme of the utility model is further improved as follows: the external thread on the fine tuning screw is a fine thread, and the tail part of the fine tuning screw is provided with a rotating part which is convenient to rotate.

The technical scheme of the utility model is further improved as follows: the backup pad is fixed on the magnetometer frame through the jackscrew.

The technical scheme of the utility model is further improved as follows: the lever meter is a lever dial indicator, and a qualified range is marked on a dial of the lever meter.

By adopting the technical scheme, the utility model has the following technical progress: through placing the device on the testing platform of operation station, the producer can detect at any time, grasps the product state. Through setting up the fine setting screw rod that is attached with fine thread, not only can adjust detection device and cylinder liner's position from top to bottom through rotatory screw rod, also can carry out the lever table zeroing that the precision is higher. Through setting up the spring, can effectively eliminate lever table gauge head and workpiece surface clearance that awaits measuring, guarantee the accuracy of measured data, spring and screw rod one are pulled simultaneously, and interact and reaction have increased the stability of system. By modifying the lever meter, the qualified range is marked on the dial, so that the dial is convenient to read and detect, and the dial is more beneficial to guiding production during large-scale detection.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art;

FIG. 1 is a schematic diagram of a device for measuring the depth of a cylinder sleeve groove;

wherein, 1, lever percentage table, 2, jackscrew, 3, backup pad, 4, fine setting screw, 5, connecting block, 6, spring.

Detailed Description

The utility model is further illustrated by the following examples:

as shown in fig. 1, for the structural schematic diagram of the device for measuring the depth of the cylinder sleeve groove, the main body is a lever dial indicator 1 with a magnetometer frame, a supporting plate 3 is arranged on the magnetometer frame, the supporting plate 3 is fixed by a jackscrew 2, and the position of the supporting plate 3 can be adjusted by adjusting the jackscrew 2. The supporting plate 3 is arranged below the lever dial indicator 1, is opposite to the lever dial indicator 1 in position and is used for fixedly supporting other parts of the lever dial indicator 1. The support plate 3 is provided with a through internal thread through hole, the internal thread hole is provided with a fine tuning screw 4, the fine tuning screw 4 is externally provided with external threads which are matched with the internal thread hole, and the fine tuning screw 4 is controlled to be screwed up and down by rotating the fine tuning screw 4, so that the upper position and the lower position are adjusted. The top of the fine tuning screw contacts with the bottom of the lever dial indicator 1, and the height of the measuring head of the lever dial indicator can be adjusted by adjusting the upper and lower positions of the fine tuning screw 4, so that the measuring head contacts with the corresponding measuring position on the workpiece, and reasonable operation of pressing the gauge and adjusting 0 is performed. The external thread outside the fine tuning screw 4 is a fine tooth external thread, so that the amplitude of the upper and lower adjusting positions of the screw is smaller through rotation, the adjusting precision of the position of the lever meter is higher, and the 0 adjusting operation is convenient to carry out. The tail of the fine adjustment screw 4 is provided with a rotating part, so that the fine adjustment screw is more convenient for a worker to hold and is more convenient to rotate during detection.

The lever percentage table 1 bottom is provided with the convex connecting block, connects through extension spring 6 between connecting block 5 and the backup pad 3. The tension spring 6 can effectively eliminate the internal clearance of the dial indicator of the lever meter. Because the lever gauge probe cannot be closely attached to the surface of the workpiece to be measured when the lever gauge probe is contacted with the surface of the workpiece, the instability can cause a tiny gap between the probe and the surface of the workpiece. The lever dial indicator 1 measures too finely and small gap errors can affect the result of the last reading. The lever dial indicator 1 and the supporting plate 3 are connected by the spring 6, and the downward pulling force generated by the spring 6 and the supporting force of the fine adjusting screw 4 to the lever dial indicator 1 are equal to each other, so that the lever indicator is kept stable, the stability of the system is improved, the gap between the measuring head of the lever indicator and the surface of a workpiece is effectively eliminated, and the measuring head of the lever indicator is tightly attached to the surface of the workpiece to be measured without gaps. The length of the extension spring is reasonable, the spring is not stretched to the limit length after connection, and the extension spring can be stretched continuously, so that the extension spring can be stretched at any time during fine adjustment. The qualified range is marked on the dial of the lever meter, and the embodiment aims to measure the depth of the neck groove of the cylinder sleeve to beTherefore, the dial plate of the lever dial indicator is marked in the range of 0.59mm-0.64mm, and when the pointer on the lever dial indicator falls in the marked range, the workpiece ruler is detectedQualified in size.

The working principle or the using method is as follows: when the device for measuring the depth of the groove of the cylinder sleeve is used for detecting the neck groove of the cylinder sleeve, the button is rotated first, and the magnetometer frame is firmly adsorbed on the detection platform. And (3) cleaning the cylinder sleeve to be tested, then placing the cylinder sleeve on a detection platform, and slowly moving the position of the cylinder sleeve to enable the lever dial indicator measuring head to be attached to the flange end face outside the cylinder sleeve groove. The rotating part at the tail of the fine tuning screw is slowly rotated, so that the fine tuning screw moves up and down, the position of the lever meter is adjusted, the measuring head of the lever meter is tightly attached to the end face of the flange outside the groove of the cylinder sleeve, and the pointer of the lever meter points to the 0 scale mark after the rotating part of the fine tuning screw is slightly rotated, so that the zeroing operation is completed. At this time, the cylinder sleeve is slowly moved, so that the measuring head of the lever dial indicator contacts the lowest point of the cylinder sleeve groove, and at this time, the reading of the pointer on the lever dial indicator is the actual depth of the cylinder sleeve groove. In order to rapidly judge the accuracy of production, whether the pointer falls within the range of 0.59-0.64mm marked on the dial can be observed, if the pointer falls within the marked range, the workpiece is detected to be qualified, otherwise, if the pointer falls outside the marked range, the defect of the size of the cylinder sleeve produced at the moment is indicated, the subsequent matched use is affected, the production is stopped as soon as possible, and the production parameters are reset.

The utility model breaks through the limitation of measuring by adopting standard measuring tools and the existing instruments, is not limited by special detecting tools, has simple and feasible structure, low manufacturing cost and measuring cost, convenient operation of workers and high detection efficiency. The produced material objects participate in trial processing production, after 1 year of production verification, more than 40000 water-cooling cylinder sleeves are processed together, the detection error is within 0.005mm by comparison with a profiler, and the final product can meet the process requirements, and has good effect. The measuring device is placed on the detection platform of the operation station, a producer can detect at any time, grasp the state of a product at any time, find out problems to adjust at any time, and realize online detection. The measurement cost and the trial-and-error cost of production are greatly reduced.

The above examples are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solution of the present utility model should fall within the scope of protection defined by the claims of the present utility model without departing from the spirit of the design of the present utility model.

Claims (4)

1. The utility model provides a measure cylinder liner recess degree of depth device, includes magnetometer frame and lever table (1) of setting on the magnetometer frame, its characterized in that: the utility model provides a fixed backup pad (3) that is provided with on the magnetometer frame, backup pad (3) are relative with lever table (1) in the below position of lever table (1), are provided with the internal thread hole that link up on backup pad (3), internal thread hole is provided with fine setting screw (4), be equipped with the external screw thread that can with internal thread hole intermeshing outward fine setting screw (4), but fine setting screw (4) top touching lever table (1) bottom, lever table (1) bottom connection is provided with protruding connecting block (5), connects through spring (6) between connecting block (5) and the backup pad (3).

2. The cylinder liner groove depth measuring device according to claim 1, wherein: the external thread on the fine tuning screw (4) is a fine thread, and a rotating part which is convenient to rotate is arranged at the tail part of the fine tuning screw (4).

3. A device for measuring cylinder liner groove depth according to claim 1 or 2, characterized in that: the supporting plate (3) is fixed on the magnetic meter frame through the jackscrew (2).

4. A device for measuring cylinder liner groove depth according to claim 3, wherein: the lever meter (1) is a lever dial indicator, and a qualified range is marked on a dial plate of the lever meter (1).