A bearing ring cylindricity measuring device for lathe parts

Abstract

The utility model relates to bearing ring cylindricality measuring technical field, and disclose a bearing ring cylindricality measuring device for lathe spare parts, including base, the base top is provided with the measuring mechanism, the measuring mechanism inboard is provided with the fixed establishment, the measuring mechanism top is provided with bearing ring body, the measuring mechanism includes measurement subassembly and fixed assembly, measurement subassembly sets up in base top, fixed assembly sets up in measurement subassembly top, when using, through the measuring mechanism that sets up, when needing to the bearing ring cylindricality carries out the measurement work, first bearing ring body is placed in the middle position on the rubber pad top, the rotating platform of servo motor drive realizes the stable rotation of bearing ring body, can carry out the dynamic detection of bearing ring body cylindrical surface multi -point, all -round, effectively avoided the precision deviation that the single point of detection or the subjective operation error of manual measurement caused.

Description

Technical Field

[0001] This utility model relates to the field of bearing ring cylindricity measurement technology, specifically a bearing ring cylindricity measuring device for lathe parts. Background Technology

[0002] In the field of lathe parts processing, bearing rings are core transmission components, and their cylindricity accuracy directly determines the rotational stability, service life and overall transmission efficiency of the bearing. Therefore, accurate measurement of the cylindricity of bearing rings is a key link to ensure product quality.

[0003] Currently, the industry still mainly relies on traditional manual measurement to measure the cylindricity of bearing races. Operators need to manually select several points on the surface of the bearing races to collect data using tools such as micrometers and dial indicators.

[0004] This measurement method has limitations: manual operation is easily affected by subjective experience and hand stability, such as uneven measurement force and deviation in point selection, which can lead to large errors in the measurement results. It is difficult to meet the quality inspection requirements of high-precision bearing rings. Manual measurement can usually only cover a limited number of points on the surface of the bearing ring, and cannot achieve dynamic detection of the entire circumference and multiple heights. It is easy to miss local areas with out-of-tolerance cylindricity, resulting in unqualified products flowing into downstream links.

[0005] According to the description in the patent announcement (authorization announcement number: CN220187616U) of a bearing ring roundness measuring device, the bearing ring roundness measuring device includes "testing table, support shaft" etc., to realize the measurement work.

[0006] Regarding the above description, the applicant believes the following issues exist:

[0007] This bearing ring roundness measuring device uses a testing platform and support shaft to perform the measurement work. However, during use, the bearing rings are fixed and the dial indicator is adjusted manually. This not only affects the processing efficiency but also makes it impossible to adjust the height of the dial indicator during measurement, affecting the accuracy of the measurement. Furthermore, after the measurement is completed, the maximum and minimum values ​​need to be calculated to determine the production error, which also affects efficiency. Therefore, this device needs to be improved. Utility Model Content

[0008] The purpose of this utility model is to provide a device for measuring the cylindricity of bearing rings for lathe parts, so as to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a bearing ring cylindricity measuring device for lathe parts, comprising a base, a measuring mechanism on the top of the base, a fixing mechanism on the inner side of the measuring mechanism, and a bearing ring body on the top of the measuring mechanism;

[0010] The measuring mechanism includes a measuring component and a fixing component. The measuring component is disposed on the top of the base, and the fixing component is disposed on the top of the measuring component.

[0011] The measuring assembly includes a fixed platform, which is fixedly connected to the top of a base. A servo motor is fixedly connected to the bottom of the fixed platform, a rotating shaft is fixedly connected to the top of the servo motor, a rotating platform is fixedly connected to the top of the rotating shaft, a rubber pad is fixedly connected to the top of the rotating platform, a protective frame is rotatably connected to the outer periphery of the rotating platform, load-bearing frames are fixedly connected to the left and right sides of the protective frame, a fixed seat is fixedly connected to the rear top of the fixed platform, a first hydraulic cylinder is fixedly connected to the rear side of the fixed seat, a support frame is fixedly connected to the front side of the first hydraulic cylinder, a second hydraulic cylinder is fixedly connected to the top of the support frame, a mounting base is fixedly connected to the bottom of the second hydraulic cylinder, a rotating rod is rotatably connected inside the mounting base, a connecting seat is fixedly connected to the outer periphery of the rotating rod, and an inductive displacement sensor is fixedly connected inside the connecting seat.

[0012] Preferably, the rotating shaft is rotatably connected inside the fixed platform, the top of the rubber pad is in contact with the bottom of the bearing ring body, and the load-bearing frame is fixedly connected to the left and right sides of the fixed platform, so as to facilitate the rotation of the rotating platform by the rotating shaft.

[0013] Preferably, the support frame is slidably connected to the inside of the fixed seat, the mounting seat is slidably connected to the inside of the support frame, the connecting seat is rotatably connected to the inner side of the front end of the mounting seat, and the inductive displacement sensor is located on the rear side of the bearing ring body, which facilitates the measurement of the cylindricity of the bearing ring body through the inductive displacement sensor.

[0014] Preferably, the fixing component includes a support plate, which is fixedly connected to the top of the load-bearing frame. A third hydraulic cylinder is fixedly connected to the right side of the support plate, and a clamping plate is fixedly connected to the left side of the third hydraulic cylinder. The clamping plate is located on the right side of the bearing ring body, and a guide frame is fixedly connected to the right side of the clamping plate. The guide frame is slidably connected inside the support plate.

[0015] Preferably, the inner side of the clamping plate is in contact with the outer periphery of the bearing ring body, and the clamping plate is V-shaped and located on top of the rubber pad. The support plate, the third hydraulic cylinder, the clamping plate and the guide frame are provided in two sets and are symmetrically distributed on the left and right sides of the bearing ring body. This allows for the limitation of bearing ring bodies of different sizes without affecting their rotation by providing two sets.

[0016] Preferably, the fixing mechanism includes a connecting plate, which is fixedly connected to the left side of the rotating rod. A limit frame is inserted inside the connecting plate, and a fixing plate is fixedly connected to the bottom rear side of the limit frame. A fixing shaft is threaded inside the fixing plate.

[0017] Preferably, the bottom right side of the limiting frame is inserted into the mounting base, and the fixed shaft passes through the mounting base, so as to ensure the stability of the connecting plate through the limiting frame.

[0018] Compared with the prior art, this utility model provides a device for measuring the cylindricity of bearing rings for lathe parts, which has the following advantages:

[0019] 1. This lathe parts bearing ring cylindricity measuring device, through its set measuring mechanism, when it is necessary to measure the cylindricity of the bearing ring, firstly, the bearing ring body is placed at the center of the top of the rubber pad. The servo motor-driven rotary table realizes the stable rotation of the bearing ring body, enabling multi-point, all-round dynamic detection of the cylindrical surface of the bearing ring body. This effectively avoids the accuracy deviation caused by subjective operation error or single detection point during manual measurement. The rotating connection structure between the rotating rod and the connecting seat can flexibly adjust the detection angle of the inductive displacement sensor, ensuring that the sensor always maintains the optimal detection posture with the bearing ring surface being measured. According to the bearing ring body and size, the first hydraulic cylinder drives the support frame to move, and the second hydraulic cylinder drives the mounting seat to move, which can adjust the front-back and up-down position of the inductive displacement sensor, improving the measurement accuracy. The third hydraulic cylinder drives the clamping plate to limit the bearing ring body without affecting the rotation of the bearing ring body.

[0020] 2. The bearing ring cylindricity measuring device for this lathe parts, through the set fixing mechanism, after the angle of the inductive displacement sensor is adjusted, can insert the limit bracket into the inside of the connecting plate, and make the bottom right side of the limit bracket insert into the inside of the mounting base. At the same time, the fixed shaft is threaded into the inside of the fixing plate and the mounting base, which can ensure the stability of the rotating rod, the connecting base and the inductive displacement sensor. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2This is a schematic diagram of the measuring mechanism.

[0024] Figure 3 This is a schematic diagram of the measurement component structure;

[0025] Figure 4 This is a schematic diagram of the outer structure of the rotating platform;

[0026] Figure 5 This is a schematic diagram of the top structure of the mounting base;

[0027] Figure 6 This is a schematic diagram of the fixed component structure;

[0028] Figure 7 This is a schematic diagram of the fixed mechanism.

[0029] In the diagram: 1. Base; 2. Measuring mechanism; 3. Fixing mechanism; 4. Bearing ring body; 21. Measuring component; 22. Fixing component; 211. Fixing platform; 212. Servo motor; 213. Rotating shaft; 214. Rotating platform; 215. Rubber pad; 216. Fixing seat; 217. Protective frame; 218. Load-bearing frame; 219. First hydraulic cylinder; 2191. Support frame; 2192. Second hydraulic cylinder; 2193. Mounting seat; 2194. Rotating rod; 2195. Connecting seat; 2196. Inductive displacement sensor; 221. Support plate; 222. Third hydraulic cylinder; 223. Guide frame; 224. Clamping plate; 31. Connecting plate; 32. Limiting frame; 33. Fixing plate; 34. Fixing shaft. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] This utility model provides the following technical solution:

[0033] Example 1

[0034] Please see Figure 1-7 This utility model provides a technical solution: a bearing ring cylindricity measuring device for lathe parts, including a base 1, a measuring mechanism 2 on the top of the base 1, a fixing mechanism 3 on the inner side of the measuring mechanism 2, and a bearing ring body 4 on the top of the measuring mechanism 2.

[0035] The measuring mechanism 2 includes a measuring component 21 and a fixing component 22. The measuring component 21 is disposed on the top of the base 1, and the fixing component 22 is disposed on the top of the measuring component 21.

[0036] The measuring assembly 21 includes a fixed platform 211, which is fixedly connected to the top of the base 1. A servo motor 212 is fixedly connected to the bottom of the fixed platform 211. A rotating shaft 213 is fixedly connected to the top of the servo motor 212. A rotating platform 214 is fixedly connected to the top of the rotating shaft 213. A rubber pad 215 is fixedly connected to the top of the rotating platform 214. A protective frame 217 is rotatably connected to the periphery of the rotating platform 214. Load-bearing frames 218 are fixedly connected to the left and right sides of the protective frame 217. The top rear side of the fixed platform 211 is fixedly connected to... There is a fixed base 216, a first hydraulic cylinder 219 is fixedly connected to the rear side of the fixed base 216, a support frame 2191 is fixedly connected to the front side of the first hydraulic cylinder 219, a second hydraulic cylinder 2192 is fixedly connected to the top of the support frame 2191, a mounting base 2193 is fixedly connected to the bottom of the second hydraulic cylinder 2192, a rotating rod 2194 is rotatably connected inside the mounting base 2193, a connecting seat 2195 is fixedly connected to the periphery of the rotating rod 2194, and an inductive displacement sensor 2196 is fixedly connected inside the connecting seat 2195.

[0037] The rotating shaft 213 is rotatably connected inside the fixed platform 211. The top of the rubber pad 215 is in contact with the bottom of the bearing ring body 4. The load-bearing frame 218 is fixedly connected to the left and right sides of the fixed platform 211, so that the rotating platform 214 can be rotated through the rotating shaft 213.

[0038] The support frame 2191 is slidably connected to the inside of the fixed seat 216, the mounting seat 2193 is slidably connected to the inside of the support frame 2191, the connecting seat 2195 is rotatably connected to the inner side of the front end of the mounting seat 2193, and the inductive displacement sensor 2196 is located on the rear side of the bearing ring body 4, so as to facilitate the cylindricity measurement of the bearing ring body 4 through the inductive displacement sensor 2196.

[0039] Please see Figure 1-7The present invention provides a technical solution: the fixing component 22 includes a support plate 221, the support plate 221 is fixedly connected to the top of the load-bearing frame 218, a third hydraulic cylinder 222 is fixedly connected to the right side of the support plate 221, a clamping plate 224 is fixedly connected to the left side of the third hydraulic cylinder 222, the clamping plate 224 is disposed on the right side of the bearing ring body 4, a guide frame 223 is fixedly connected to the right side of the clamping plate 224, and the guide frame 223 is slidably connected to the inside of the support plate 221.

[0040] The inner side of the clamping plate 224 is in contact with the outer periphery of the bearing ring body 4, and the clamping plate 224 is V-shaped and located on top of the rubber pad 215. The support plate 221, the third hydraulic cylinder 222, the clamping plate 224 and the guide frame 223 are provided in two sets and are symmetrically distributed on the left and right sides of the bearing ring body 4. By setting two sets, it is convenient to limit the bearing ring body 4 of different sizes without affecting its rotation.

[0041] Example 2

[0042] Please see Figure 1-7 Furthermore, based on Embodiment 1, the fixing mechanism 3 includes a connecting plate 31, which is fixedly connected to the left side of the rotating rod 2194. A limit frame 32 is inserted inside the connecting plate 31, and a fixing plate 33 is fixedly connected to the bottom rear side of the limit frame 32. A fixing shaft 34 is threaded inside the fixing plate 33.

[0043] The bottom right side of the limiting bracket 32 ​​is inserted into the mounting base 2193, and the fixed shaft 34 passes through the mounting base 2193, so that the stability of the connecting plate 31 can be ensured by the limiting bracket 32.

[0044] In actual operation, when this device is used to measure the cylindricity of the bearing ring, the bearing ring body 4 is first placed in the middle of the top of the rubber pad 215. The third hydraulic cylinder 222 drives the clamping plate 224 to move, so that the inner side of the clamping plate 224 contacts the outer side of the bearing ring body 4. The clamping plate 224 drives the guide frame 223 to slide inside the support plate 221. The support plate 221, the third hydraulic cylinder 222, the clamping plate 224 and the guide frame 223 are provided in two sets, which can be adapted to bearing ring bodies 4 of different sizes. They can limit the bearing ring body 4 without affecting its rotation. This effectively limits the radial displacement and shaking of the bearing ring during the measurement process, and at the same time ensures that the bearing ring body 4 is in the center of the top of the rubber pad 215.

[0045] The first hydraulic cylinder 219 drives the support frame 2191 to move back and forth within the fixed seat 216, and the second hydraulic cylinder 2192 drives the mounting seat 2193 to move up and down within the support frame 2191. This allows adjustment of the front-back and up-down positions of the inductive displacement sensor 2196, ensuring that the inductive displacement sensor 2196 is located behind the bearing ring body 4 without needing to contact it. The rotating connection structure between the rotating rod 2194 and the connecting seat 2195 allows for flexible adjustment of the detection angle of the inductive displacement sensor 2196, ensuring that the sensor always maintains the optimal detection posture with the surface of the bearing ring being measured. After adjustment, the limit frame 32 is inserted into the connecting plate 31, and the bottom right side of the limit frame 32 is inserted into the mounting seat 2193. At the same time, the fixed shaft 34 is threaded into the fixed plate 33 and the mounting seat 2193, thus ensuring the stability of the rotating rod 2194, the connecting seat 2195, and the inductive displacement sensor 2196.

[0046] At this point, the inductive displacement sensor 2196 can be connected to an external computer device to perform measurement work. During measurement, the servo motor 212 drives the rotating shaft 213 and the rotating table 214 to rotate, and the rotating table 214 rotates within the protective frame 217, thereby driving the bearing ring body 4 on the top of the rubber pad 215 to rotate. This enables multi-point, all-round dynamic detection of the cylindrical surface of the bearing ring body 4, effectively avoiding the accuracy deviation caused by subjective operation error or single detection point during manual measurement, and improving the accuracy of measurement. By adjusting the vertical position of the inductive displacement sensor 2196 on the bearing ring body 4, the accuracy of measurement is further improved.

[0047] The 2196 inductive displacement sensor is model number: Peter Hirt T202P from Switzerland.

[0048] In this application, all servo motors 212, the first hydraulic cylinder 219, the second hydraulic cylinder 2192, and the third hydraulic cylinder 222 need to be connected to the same PLC controller near the device, and the inductive displacement sensor 2196 needs to be connected to an external computer. Both the PLC controller and the computer are existing technologies, and those skilled in the art are well aware of their operation methods, so they will not be described in detail here.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A device for measuring the cylindricity of bearing rings for lathe parts, comprising a base (1), characterized in that: The base (1) is provided with a measuring mechanism (2) on the top, a fixing mechanism (3) is provided inside the measuring mechanism (2), and a bearing ring body (4) is provided on the top of the measuring mechanism (2). The measuring mechanism (2) includes a measuring component (21) and a fixing component (22). The measuring component (21) is disposed on the top of the base (1), and the fixing component (22) is disposed on the top of the measuring component (21). The measuring component (21) includes a fixed platform (211), which is fixedly connected to the top of the base (1). A servo motor (212) is fixedly connected to the bottom of the fixed platform (211). A rotating shaft (213) is fixedly connected to the top of the servo motor (212). A rotating platform (214) is fixedly connected to the top of the rotating shaft (213). A rubber pad (215) is fixedly connected to the top of the rotating platform (214). A protective frame (217) is rotatably connected to the periphery of the rotating platform (214). A load-bearing frame (218) is fixedly connected to the left and right sides of the protective frame (217). A fixed base (216) is fixedly connected to the rear side of the top of the fixed platform (211). A first hydraulic cylinder (219) is fixedly connected to the rear side of the fixed base (216). A support frame (2191) is fixedly connected to the front side of the first hydraulic cylinder (219). A second hydraulic cylinder (2192) is fixedly connected to the top of the support frame (2191). A mounting base (2193) is fixedly connected to the bottom of the second hydraulic cylinder (2192). A rotating rod (2194) is rotatably connected inside the mounting base (2193). A connecting seat (2195) is fixedly connected to the periphery of the rotating rod (2194). An inductive displacement sensor (2196) is fixedly connected inside the connecting seat (2195).

2. The bearing ring cylindricity measuring device for lathe parts according to claim 1, characterized in that: The rotating shaft (213) is rotatably connected inside the fixed platform (211), the top of the rubber pad (215) is in contact with the bottom of the bearing ring body (4), and the load-bearing frame (218) is fixedly connected to the left and right sides of the fixed platform (211).

3. The device for measuring the cylindricity of bearing rings for lathe parts according to claim 1, characterized in that: The support frame (2191) is slidably connected to the inside of the fixed seat (216), the mounting seat (2193) is slidably connected to the inside of the support frame (2191), the connecting seat (2195) is rotatably connected to the inner side of the front end of the mounting seat (2193), and the inductive displacement sensor (2196) is located on the rear side of the bearing ring body (4).

4. The device for measuring the cylindricity of bearing rings for lathe parts according to claim 1, characterized in that: The fixing component (22) includes a support plate (221), which is fixedly connected to the top of the load-bearing frame (218). A third hydraulic cylinder (222) is fixedly connected to the right side of the support plate (221), and a clamping plate (224) is fixedly connected to the left side of the third hydraulic cylinder (222). The clamping plate (224) is located on the right side of the bearing ring body (4), and a guide frame (223) is fixedly connected to the right side of the clamping plate (224). The guide frame (223) is slidably connected inside the support plate (221).

5. The bearing ring cylindricity measuring device for lathe parts according to claim 4, characterized in that: The inner side of the clamping plate (224) is in contact with the outer periphery of the bearing ring body (4), and the clamping plate (224) is V-shaped and located on the top of the rubber pad (215). The support plate (221), the third hydraulic cylinder (222), the clamping plate (224) and the guide frame (223) are provided in two sets and are symmetrically distributed on the left and right sides of the bearing ring body (4).

6. The device for measuring the cylindricity of bearing rings for lathe parts according to claim 1, characterized in that: The fixing mechanism (3) includes a connecting plate (31), which is fixedly connected to the left side of the rotating rod (2194). A limit frame (32) is inserted inside the connecting plate (31), and a fixing plate (33) is fixedly connected to the bottom rear side of the limit frame (32). A fixing shaft (34) is threaded inside the fixing plate (33).

7. The bearing ring cylindricity measuring device for lathe parts according to claim 6, characterized in that: The bottom right side of the limiting bracket (32) is inserted into the mounting base (2193), and the fixed shaft (34) passes through the mounting base (2193).

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