Device for measuring pairing of inner and outer rings of bearing

Abstract

The bearing inner and outer ring pairing measuring device comprises a base table, four universal wheels and supporting legs are arranged at the bottom of the base table, and an outer ring measuring table top, an inner ring measuring table top, an inner ring measuring system and an upper computer are arranged on the base table; a plurality of groups of outer ring measurement supporting pieces are arranged on the outer ring measurement table surface, and outer displacement sensors are arranged on the outer ring measurement supporting pieces; in conclusion, by moving the supporting rod in the guide groove, the position of the external displacement sensor can be adjusted according to bearings of different sizes, and the measurement accuracy is ensured; the Z-axis adjustment assembly and the X-axis fine adjustment assembly allow multi-dimensional fine adjustment of the internal displacement sensor, and the flexibility and precision of measurement are improved; according to the utility model, the size of the inner and outer rings of the large-scale bearing can be rapidly measured at a high precision of 1.5 micrometers on a production site, the problem that the inner and outer rings need to be paired at high precision when bearing production enterprises produce the large-scale bearing is greatly solved, and the production efficiency is accelerated.

Description

Technical Field

[0001] The utility model relates to a device for measuring the pairing of inner and outer rings of a bearing. Background Art

[0002] At present, the processing and production of large bearings will cause certain errors in the inner and outer diameter dimensions of the inner and outer rings of the same batch of bearings due to processing technology and processing errors. High-precision bearing assembly requires the inner and outer rings of different sizes to be paired with each other, but there is currently a lack of instruments in production that can quickly measure the dimensions of the inner and outer rings of bearings. Utility Model Content

[0003] The utility model aims to provide a bearing inner and outer ring pairing measuring device to solve the technical problem that there is a lack of instruments capable of quickly measuring the sizes of the bearing inner and outer rings in the prior art.

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

[0005] The bearing inner and outer ring matching measuring device comprises a base platform, the bottom of the base platform is provided with four universal wheels and legs, and the base platform is provided with an outer ring measuring table, an inner ring measuring table, an inner ring measuring system and a host computer;

[0006] Several groups of outer ring measurement supports are arranged on the outer ring measurement table, and external displacement sensors are arranged on the outer ring measurement supports. One group of outer ring measurement supports is also arranged with a temperature sensor.

[0007] A measuring and positioning component is provided on the inner circle measuring table, and the measuring and positioning component is used to locate the position of the object to be measured;

[0008] The inner ring measurement system includes a temperature detection assembly and two groups of inner ring measurement assemblies, and the two groups of inner ring measurement assemblies are symmetrically arranged about the inner ring measurement table; the inner ring measurement assembly on the right side includes an X-axis feed mechanism and a bracket plate, the X-axis feed mechanism includes a dovetail slideway, a dovetail slideway is provided on the dovetail slideway, the dovetail slideway can slide on the dovetail slideway, and a screw nut mechanism is provided on the dovetail slideway, a feed handwheel is installed at the end of the screw of the screw nut mechanism, and the nut seat of the screw nut mechanism is fixed to the bottom of the dovetail slideway; the bracket plate is fixedly installed on the dovetail slideway, and a plurality of inner displacement sensors are installed on the bracket plate, a horizontal cylinder is built in the inner displacement sensor, a slide rail is provided at the bottom of the inner displacement sensor, and a detection probe of the inner displacement sensor is slidably installed on the slide rail, and the horizontal cylinder is used to push the detection probe to move horizontally on the slide rail;

[0009] The temperature detection assembly includes a mounting bracket, a vertical cylinder is arranged on the mounting bracket, and a temperature sensor is installed at the end of the push rod of the vertical cylinder;

[0010] The host computer is connected with the internal displacement sensor, the external displacement sensor and the temperature sensor respectively.

[0011] Furthermore, the outer ring measurement support includes a support rod, the lower part of the support rod is a stud structure, the upper end of the support rod is used to install the external displacement sensor, a guide groove is opened on the outer ring measurement table, the cross-section of the guide groove is an inverted T-shaped structure, a slider is arranged in the guide groove, a threaded hole is opened on the slider, the lower part of the support rod is threadedly installed in the threaded hole of the slider, and a locking nut is also arranged at the lower part of the support rod, and the locking nut is press-fitted with the outer ring measurement table.

[0012] Further, the measuring and positioning assembly includes two groups of guide rods and two groups of limit columns. Two horizontal slide grooves and two inclined slide grooves are provided on the inner ring measuring table. The two horizontal slide grooves and the two inclined slide grooves are symmetrically arranged. The two groups of guide rods are respectively arranged on the two horizontal slide grooves, and the guide rods can move in the horizontal direction on the horizontal slide grooves. The opposite sides of the two groups of guide rods form a guide channel, and the guide channel consists of a bell mouth and a straight channel.

[0013] The two groups of limit columns are respectively arranged in two inclined slide grooves, and the two inclined slide grooves are arranged in an eight-shaped shape. The cross-section of the inclined slide groove is an inverted T-shape. A T-shaped slider is arranged in the inclined slide groove, and the T-shaped slider can slide in the inclined slide groove. The limit column is fixed to the T-shaped slider by bolts. The bolts pass through the limit column and the T-shaped slider, and the lower end surface of the limit column contacts the inner circle measuring table.

[0014] Further, the support plate is provided with several groups of Z-axis adjustment components, the Z-axis adjustment components include a Z-axis handwheel and a screw nut mechanism, the Z-axis handwheel is mounted on the end of the screw of the screw nut mechanism, the X-axis mounting frame is fixed on the nut seat of the screw nut mechanism, the X-axis mounting frame is provided with an X-axis fine-tuning component, the X-axis fine-tuning component includes an X-axis handwheel and a screw nut mechanism, the X-axis handwheel is mounted on the end of the screw of the screw nut mechanism, and the internal displacement sensor is mounted on the nut seat of the screw nut mechanism;

[0015] A vertical groove is provided on the bracket plate, and a threaded hole is also provided on the nut seat of the screw nut mechanism of the Z-axis adjustment assembly. The threaded hole corresponds to the vertical groove. A locking bolt is provided in the threaded hole. The locking bolt is passed through the vertical groove, and the head of the locking bolt is in pressure contact with the bracket plate.

[0016] Furthermore, two horizontal rulers and two inclined rulers are fixed on the inner ring measuring table, the two inclined teeth are parallel to the two inclined slide grooves, and the two horizontal rulers are parallel to the two horizontal slide grooves. The end of the guide rod and the lower end of the limit column are provided with pointer pieces. The pointer piece at the end of the guide rod points to the corresponding horizontal ruler, and the pointer piece at the lower end of the limit column points to the corresponding inclined ruler.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the utility model can adjust the position of the external displacement sensor according to bearings of different sizes by moving the support rod in the guide groove to ensure the accuracy of measurement; considering the influence of thermal expansion and contraction, the temperature sensor can monitor the temperature change during the measurement process, which helps to compensate for the dimensional change caused by temperature and improve the measurement accuracy; through the combination of the guide rod and the limit column, the position of the measured bearing can be accurately controlled to ensure the consistency of each measurement; the Z-axis adjustment component and the X-axis fine-tuning component allow multi-dimensional fine-tuning of the internal displacement sensor, which improves the flexibility and accuracy of measurement; the upper computer, as the control center of the entire system, can receive data from each sensor, analyze and process it, and output the final measurement result; the utility model can quickly measure the size of the inner and outer rings of large bearings with high precision of 1.5 microns at the production site, which greatly facilitates the problem of high-precision pairing of inner and outer rings required by bearing manufacturers when producing large bearings, and speeds up production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the structure of the bearing inner and outer ring pairing measurement device of the utility model;

[0020] Figure 2 It is a position relationship diagram of the temperature detection assembly, the inner ring measuring table and the outer ring measuring table;

[0021] Figure 3 Axonometric drawing of the outer ring measuring table;

[0022] Figure 4 This is a top view of the outer ring measurement table;

[0023] Figure 5 for Figure 4 Sectional view at AA;

[0024] Figure 6 Axonometric drawing of the inner ring measuring table;

[0025] Figure 7 It is a top view of the axonometric drawing of the outer ring measuring table;

[0026] Figure 8 It is a schematic diagram of the connection between the limit column and the T-shaped slider;

[0027] Fig. 9 Axonometric drawing of the inner ring measurement assembly;

[0028] Fig.10Another perspective axonometric drawing of the inner ring measurement system. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] The present invention is further described in detail below in conjunction with the embodiments.

[0031] A specific embodiment of a bearing inner and outer ring pairing measurement device provided by the utility model:

[0032] like Figure 1 and Figure 2 As shown, the bearing inner and outer ring pairing measuring device comprises a base platform 1, the bottom of the base platform 1 is provided with four universal wheels 2 and legs 3, and the base platform 1 is provided with an outer ring measuring table 4, an inner ring measuring table 5, an inner ring measuring system and a host computer 6;

[0033] like Figure 3-5 As shown, several groups of outer ring measuring supports are arranged on the outer ring measuring table 4, and external displacement sensors 7 are arranged on the outer ring measuring supports, one of which group of outer ring measuring supports is also provided with a temperature sensor, and the outer ring measuring supports include a support rod 8, the lower part of the support rod 8 is a stud structure, and the upper end of the support rod 8 is used to install the external displacement sensor 7, and a guide groove 9 is provided on the outer ring measuring table 4, and the cross section of the guide groove 9 is an inverted T-shaped structure, and a slider 10 is arranged in the guide groove 9, and a threaded hole is provided on the slider 10, and the lower part of the support rod 8 is threadedly installed in the threaded hole of the slider 10, and a locking nut 11 is also provided at the lower part of the support rod 8, and the locking nut 11 is pressed with the outer ring measuring table 4 to form a tightening force, so that the support rod 8 can be fixed in the guide groove 9, and the locking nut 11 can be loosened to move the support rod 8 on the guide groove 9 to change the position of the external displacement sensor 7.

[0034] like Figure 6-8 As shown, a measuring and positioning assembly is provided on the inner ring measuring table 5, and the measuring and positioning assembly is used to locate the position of the measured object. Specifically, the measuring and positioning assembly includes two groups of guide rods 12 and two groups of limit columns 13. Two horizontal slide grooves 14 and two inclined slide grooves 15 are provided on the inner ring measuring table 5. The two horizontal slide grooves 14 and the two inclined slide grooves 15 are symmetrically arranged. The two groups of guide rods 12 are respectively arranged on the two horizontal slide grooves 14, and the guide rods 12 can move in the horizontal direction on the horizontal slide grooves 14. The opposite sides of the two groups of guide rods 12 form a guide channel 16, and the guide channel 16 consists of a bell mouth and a straight channel.

[0035] The two groups of limit columns 13 are respectively arranged in two inclined slide grooves 15, and the two inclined slide grooves 15 are arranged in an eight-shaped shape. The cross-section of the inclined slide groove 15 is an inverted T-shape. A T-shaped slider 17 is arranged in the inclined slide groove 15, and the T-shaped slider 17 can slide in the inclined slide groove 15. The limit column 13 is fixed to the T-shaped slider 17 by bolts. The bolts penetrate the limit column 13 and the T-shaped slider 17, and the lower end surface of the limit column 13 contacts the inner ring measuring table 5. By screwing the bolts downward, the bolts can generate a tightening force on the limit column 13, so that it is fixed on the inner ring measuring table 5.

[0036] When placing the measured piece on the inner circle measuring table 5, first place it on the bell mouth of the guide channel 16, then push the measured piece forward and push it to the straight channel until the measured piece collides with the two sets of limit columns 13. The two sets of limit columns 13 can limit the position of the measured piece to ensure that its measuring position remains unchanged.

[0037] Preferably, two horizontal rulers 18 and two inclined rulers 19 can be arranged on the inner circle measuring table 5, the two inclined teeth are respectively parallel to the two inclined slide grooves 15, and the two horizontal rulers 18 are respectively parallel to the two horizontal slide grooves 14. The end of the guide rod 12 and the lower end of the limit column 13 are provided with pointer pieces 20, the pointer piece 20 at the end of the guide rod 12 points to the corresponding horizontal ruler 18, and the pointer piece 20 at the lower end of the limit column 13 points to the corresponding inclined ruler 19; the horizontal ruler 18 can display the moving distance of the guide rod 12, and the inclined ruler 19 can display the moving distance of the limit column 13 along the inclined slide groove 15.

[0038] The inner ring measurement system includes a temperature detection assembly and two sets of inner ring measurement assemblies, and the two sets of inner ring measurement assemblies are symmetrically arranged about the inner ring measurement table 5; Fig. 9 and Fig.10 As shown, the inner ring measurement assembly on the right side includes an X-axis feed mechanism and a bracket plate 21, the X-axis feed mechanism includes a dovetail slide 22, a dovetail slide 23 is provided on the dovetail slide 22, the dovetail slide 22 is provided with a lead screw nut mechanism, a feed handwheel 24 is installed at the end of the lead screw of the lead screw nut mechanism, and the nut seat of the lead screw nut mechanism is fixed to the bottom of the dovetail slide 23; the bracket plate 21 is fixedly installed on the dovetail slide 23, a plurality of inner displacement sensors 25 are installed on the bracket plate 21, a horizontal cylinder 26 is built in the inner displacement sensor 25, a slide rail 27 is provided at the bottom of the inner displacement sensor 25, a detection probe of the inner displacement sensor 25 is slidably installed on the slide rail 27, and the horizontal cylinder 26 is used to push the detection probe to move horizontally on the slide rail 27;

[0039] like Figure 2As shown, the temperature detection assembly includes a mounting bracket 28, a vertical cylinder 29 is disposed on the mounting bracket 28, and a temperature sensor 30 is installed at the end of the push rod of the vertical cylinder 29;

[0040] The host computer 6 is connected to the internal displacement sensor 25 , the external displacement sensor 7 and the temperature sensor respectively. The internal displacement sensor 25 and the external displacement sensor 7 are both high-precision LVDT sensors.

[0041] When using the bearing inner and outer ring pairing measurement device of this embodiment to measure the inner and outer rings of the bearing, first place the bearing on the inner ring measurement table 5, manually send the bearing to the measurement position through the guide channel 16, and then start the horizontal cylinder 26 and the vertical cylinder 29. The horizontal cylinder 26 pushes the detection probe of the inner displacement sensor 25 to move it on the slide rail, and the vertical cylinder 29 pushes the temperature sensor. Finally, the detection probe of the inner displacement sensor 25 and the temperature probe of the temperature sensor contact the bearing, and the upper computer 6 collects the values ​​of the inner displacement sensor 25 and the temperature sensor. The above content is for inner ring measurement; when measuring the outer ring, place the bearing on the outer ring measurement table 4, move the support rod 8 on the guide groove 9, so that the outer displacement sensor 7 and the temperature sensor contact the bearing, and the upper computer 6 also collects the values ​​of the outer displacement sensor 7 and the temperature sensor.

[0042] In addition, in this embodiment, several groups of Z-axis adjustment components can be arranged on the bracket plate 21, and the Z-axis adjustment components are used to fine-tune the vertical position of the internal displacement sensor 25. The Z-axis adjustment components include a Z-axis handwheel 31 and a screw nut mechanism. The Z-axis handwheel 31 is installed on the screw end of the screw nut mechanism, and an X-axis mounting frame 32 is fixed on the nut seat of the screw nut mechanism. An X-axis fine-tuning component is arranged on the X-axis mounting frame 32. The X-axis fine-tuning component includes an X-axis handwheel 33 and a screw nut mechanism. The X-axis handwheel 33 is installed on the screw end of the screw nut mechanism, and the internal displacement sensor 25 is installed on the nut seat of the screw nut mechanism.

[0043] By rotating the Z-axis hand wheel 31 , the nut seat can be driven to move in the vertical direction to adjust the position of the internal displacement sensor 25 . By rotating the X-axis hand wheel 33 , the nut seat can be driven to move in the horizontal direction to adjust the position of the internal displacement sensor 25 .

[0044] In addition, a vertical groove 34 is provided on the bracket plate 21, and a threaded hole 36 is also provided on the nut seat of the screw nut mechanism of the Z-axis adjustment assembly. The threaded hole 36 corresponds to the vertical groove 34. A locking bolt 35 is provided in the threaded hole 36. The locking bolt 35 is inserted into the vertical groove 34, and the head of the locking bolt 35 is pressed into contact with the bracket plate 21. A tightening force is generated between the locking bolt 35 and the bracket plate 21, so that the nut seat of the Z-axis adjustment assembly can be fixed. When the Z-axis adjustment assembly needs to be operated, the locking nut 11 is loosened to operate the Z-axis handwheel 31 to drive the nut seat to move in the vertical direction.

[0045] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0046] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Bearing inner and outer ring pairing measuring device, characterized by: It includes a base platform, the bottom of which is provided with four universal wheels and legs, and the base platform is provided with an outer ring measuring table, an inner ring measuring table, an inner ring measuring system and a host computer; Several groups of outer ring measurement supports are arranged on the outer ring measurement table, and external displacement sensors are arranged on the outer ring measurement supports. One group of outer ring measurement supports is also arranged with a temperature sensor. A measuring and positioning component is provided on the inner circle measuring table, and the measuring and positioning component is used to locate the position of the object to be measured; The inner ring measurement system includes a temperature detection assembly and two groups of inner ring measurement assemblies, and the two groups of inner ring measurement assemblies are symmetrically arranged about the inner ring measurement table; the inner ring measurement assembly on the right side includes an X-axis feed mechanism and a bracket plate, the X-axis feed mechanism includes a dovetail slideway, a dovetail slideway is provided on the dovetail slideway, the dovetail slideway can slide on the dovetail slideway, and a screw nut mechanism is provided on the dovetail slideway, a feed handwheel is installed at the end of the screw of the screw nut mechanism, and the nut seat of the screw nut mechanism is fixed to the bottom of the dovetail slideway; the bracket plate is fixedly installed on the dovetail slideway, and a plurality of inner displacement sensors are installed on the bracket plate, a horizontal cylinder is built in the inner displacement sensor, a slide rail is provided at the bottom of the inner displacement sensor, and a detection probe of the inner displacement sensor is slidably installed on the slide rail, and the horizontal cylinder is used to push the detection probe to move horizontally on the slide rail; The temperature detection assembly includes a mounting bracket, a vertical cylinder is arranged on the mounting bracket, and a temperature sensor is installed at the end of the push rod of the vertical cylinder; The host computer is connected with the internal displacement sensor, the external displacement sensor and the temperature sensor respectively.

2. The bearing inner and outer ring pairing measuring device according to claim 1, characterized in that: The outer ring measurement support includes a support rod, the lower part of the support rod is a stud structure, the upper end of the support rod is used to install the external displacement sensor, a guide groove is opened on the outer ring measurement table, the cross-section of the guide groove is an inverted T-shaped structure, a slider is arranged in the guide groove, a threaded hole is opened on the slider, the lower part of the support rod is threadedly installed in the threaded hole of the slider, and a locking nut is also arranged at the lower part of the support rod, and the locking nut is press-fitted with the outer ring measurement table.

3. The bearing inner and outer ring pairing measuring device according to claim 2, characterized in that: The measuring and positioning assembly includes two groups of guide rods and two groups of limit columns. Two horizontal slide grooves and two inclined slide grooves are provided on the inner ring measuring table. The two horizontal slide grooves and the two inclined slide grooves are symmetrically arranged. The two groups of guide rods are respectively arranged on the two horizontal slide grooves, and the guide rods can move in the horizontal direction on the horizontal slide grooves. The opposite sides of the two groups of guide rods form a guide channel, and the guide channel consists of a bell mouth and a straight channel. The two groups of limit columns are respectively arranged in two inclined slide grooves, and the two inclined slide grooves are arranged in an eight-shaped shape. The cross-section of the inclined slide groove is an inverted T-shape. A T-shaped slider is arranged in the inclined slide groove, and the T-shaped slider can slide in the inclined slide groove. The limit column is fixed to the T-shaped slider by bolts. The bolts pass through the limit column and the T-shaped slider, and the lower end surface of the limit column contacts the inner circle measuring table.

4. The bearing inner and outer ring pairing measuring device according to claim 3 is characterized in that: The support plate is provided with a plurality of groups of Z-axis adjustment components, the Z-axis adjustment components include a Z-axis handwheel and a lead screw nut mechanism, the Z-axis handwheel is mounted on the lead screw end of the lead screw nut mechanism, an X-axis mounting frame is fixed on the nut seat of the lead screw nut mechanism, an X-axis fine-tuning component is arranged on the X-axis mounting frame, the X-axis fine-tuning component includes an X-axis handwheel and a lead screw nut mechanism, the X-axis handwheel is mounted on the lead screw end of the lead screw nut mechanism, and the internal displacement sensor is mounted on the nut seat of the lead screw nut mechanism; A vertical groove is provided on the bracket plate, and a threaded hole is also provided on the nut seat of the screw nut mechanism of the Z-axis adjustment assembly. The threaded hole corresponds to the vertical groove. A locking bolt is provided in the threaded hole. The locking bolt is passed through the vertical groove, and the head of the locking bolt is in pressure contact with the bracket plate.

5. The bearing inner and outer ring pairing measuring device according to claim 4, characterized in that: Two horizontal rulers and two inclined rulers are fixed on the inner ring measuring table. The two inclined teeth are parallel to the two inclined slide grooves respectively, and the two horizontal rulers are parallel to the two horizontal slide grooves respectively. The end of the guide rod and the lower end of the limit column are provided with pointer pieces. The pointer piece at the end of the guide rod points to the corresponding horizontal ruler, and the pointer piece at the lower end of the limit column points to the corresponding inclined ruler.

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