Inspection tester for symmetry degree of shaft parts

By designing a symmetry inspection instrument for shaft parts, the instrument automatically measures the symmetry of shaft parts using drive and observation components, solving the problems of insufficient accuracy and low efficiency in existing technologies, and achieving high-precision and simplified operation in the inspection.

CN223841118UActive Publication Date: 2026-01-27JINING XIANGRUIYUAN TRADING CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520166601.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-24
Publication Date
2026-01-27
Estimated Expiration
2035-01-24

AI Technical Summary

Technical Problem

In existing technologies, the accuracy of vernier calipers in measuring the symmetry of shaft parts is affected by the operator's experience and the measurement method, resulting in errors. The operation is complex and inefficient, and cannot meet the requirements of high-precision testing.

Method used

A symmetry inspection instrument for shaft-type parts was designed, including a support platform, an operating table, a positioning rod, a drive assembly, and a detection mechanism. The drive assembly clamps the parts, and the observation assembly determines whether the distance between the outer wall of the part and the center point is the same, thus realizing automated measurement.

Benefits of technology

It improves measurement accuracy and efficiency, reduces operator subjective error and the workload of multiple measurements, and simplifies the operation process.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223841118U_ABST
    Figure CN223841118U_ABST
Patent Text Reader

Abstract

The utility model discloses a shaft part symmetry degree inspection tester, which comprises a support table, an operation table, a positioning rod, a driving assembly and a detection mechanism, and is characterized in that an installation head is in threaded connection with the top of the positioning rod, one ends of two support arms are symmetrically and fixedly connected with the outer wall of the installation head, and one end of an adjusting screw rod penetrates through the outer wall of the other end of each support arm in a threaded manner; and one end of the abutting rod is connected to the outer wall of the adjusting lead screw in a threaded and sleeving mode, and the observation assembly is installed at the top of the abutting rod. Therefore, by synchronously starting the two driving assemblies, the outer wall of the part can be clamped, it is guaranteed that the center point of the shaft part is the same as the center point of the positioning rod, then by rotating the adjusting lead screw, the abutting rod is driven to move, and after the abutting rod abuts against the outer wall of the shaft part, the part can be clamped. Whether the distances between the outer walls of the shaft parts and the center points are the same can be judged through the observation assembly.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of shaft parts processing technology, and in particular to a shaft parts symmetry inspection instrument. Background Technology

[0002] In existing parts symmetry inspection devices, dedicated vernier calipers are commonly used as the main measuring tool. Vernier calipers measure the outer diameter, inner diameter and other geometric dimensions of parts by manually adjusting and reading the scale. They are generally suitable for general dimensional measurement tasks. However, because the accuracy of vernier calipers is affected by the operator's experience and measurement method, errors are prone to occur during the measurement process. Especially when measuring the symmetry of parts, vernier calipers can only provide limited accuracy and cannot fully meet the needs of high-precision parts inspection.

[0003] This manual measurement method is not only complicated to operate, but also inefficient. Operators need to rely on experience to manually adjust and read values, which introduces a certain degree of subjective error. In addition, operators often need to take multiple measurements to ensure the accuracy of the results, which increases measurement time and workload. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, the purpose of this utility model is to propose a symmetry inspection instrument for shaft parts, which can solve the problems of manual measurement, which is not only complicated to operate and inefficient, but also requires operators to rely on experience to manually adjust and read values, resulting in certain subjective errors. In addition, operators often need to take multiple measurements to ensure the accuracy of the results, which increases the measurement time and workload.

[0006] To achieve the above objectives, this utility model proposes a symmetry inspection instrument for shaft parts, comprising a support platform, an operating platform, a positioning rod, a drive assembly, and a detection mechanism. The operating platform is fixedly connected to the top of the support platform, and the positioning rod is fixedly connected to the center of the top of the operating platform. Two sets of drive assemblies are symmetrically installed at both ends of the operating platform. The detection mechanism includes a mounting head, support arms, an adjusting screw, a contact rod, and an observation assembly. The mounting head is threaded to the top of the positioning rod. One end of each of the two support arms is symmetrically fixedly connected to the outer wall of the mounting head. One end of the adjusting screw is threaded through the outer wall of the other end of the support arm and rotatably connected to one end of the inner wall of the support arm. One end of the contact rod is threaded onto the outer wall of the adjusting screw. The observation assembly is installed on the top of the contact rod.

[0007] This utility model discloses a symmetry inspection instrument for shaft parts. The observation component is installed on the top of the abutment rod. First, the shaft part is placed on the outside of the positioning rod. Then, by activating two drive components simultaneously, the outer wall of the part is clamped, ensuring that the center point of the shaft part is the same as the center point of the positioning rod. Then, by rotating the adjusting screw, the abutment rod is moved. When the abutment rod abuts the outer wall of the shaft part, the observation component can determine whether the distance between the outer wall of the shaft part and the center point is the same.

[0008] In addition, the shaft part symmetry inspection instrument proposed above according to this utility model may also have the following additional technical features:

[0009] Specifically, the observation component includes a sliding sleeve, a pointer, and a scale. The sliding sleeve is fixedly connected to the top of the positioning rod and slidably sleeved on the outer wall of the support arm. The pointer is fixedly connected to the bottom of one side of the sliding sleeve, and the scale is fixedly connected to the outer wall of the support arm.

[0010] Specifically, the driving assembly includes a driving device, a guide plate, a support sleeve, and a clamping sleeve. The driving device is installed at the end of the operating table, and the output end of the driving device passes through the side wall of the operating table and is fixedly connected to one side of the guide plate. One end of the support sleeve is fixedly connected to the other side of the guide plate, and one end of the clamping sleeve is fixedly connected to a plug rod, which is slidably engaged with the other end of the support sleeve.

[0011] Specifically, a guide groove is provided on the top inner side of the operating table, and the two ends of the guide plate are slidably engaged with the inner wall of the operating table.

[0012] Specifically, the outer wall of one end of the abutment rod abuts against the inner wall of the support arm.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the drive component of this utility model;

[0017] Figure 3This is a schematic diagram of the positioning rod of this utility model;

[0018] Figure 4 This utility model Figure 3 A magnified structural diagram of part A in the middle.

[0019] As shown in the figure:

[0020] 1. Support platform; 2. Operating table; 3. Positioning rod; 4. Drive assembly; 41. Drive device; 42. Guide plate; 43. Support sleeve; 44. Clamping sleeve; 5. Detection mechanism; 51. Mounting head; 52. Support arm; 53. Adjusting screw; 54. Abutment rod; 55. Observation assembly; 551. Sliding sleeve; 552. Pointer; 553. Scale. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. Rather, the embodiments of this utility model include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0022] The symmetry inspection instrument for shaft parts according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0023] like Figures 1-4 As shown, the symmetry inspection instrument for shaft parts according to this utility model embodiment may include a support platform 1, an operating platform 2, a positioning rod 3, a drive assembly 4, and a detection mechanism 5.

[0024] The control panel 2 is fixedly connected to the top of the support platform 1, and the positioning rod 3 is fixedly connected to the center of the top of the control panel 2.

[0025] It should be noted that the top of the operating table 2 described in this embodiment has a recessed slot.

[0026] Two sets of drive components 4 are provided and are symmetrically installed at both ends of the control panel 2.

[0027] It should be noted that the output travel distances of the two drive components 4 described in this embodiment are the same, thereby ensuring the accuracy of detection.

[0028] The testing mechanism 5 includes a mounting head 51, a support arm 52, an adjusting screw 53, a contact rod 54, and an observation component 55.

[0029] The mounting head 51 is threaded to the top of the positioning rod 3. One end of each of the two support arms 52 is symmetrically fixed to the outer wall of the mounting head 51. One end of the adjusting screw 53 is threaded through the outer wall of the other end of the support arm 52 and is rotatably connected to one end of the inner wall of the support arm 52. One end of the abutting rod 54 is threaded onto the outer wall of the adjusting screw 53.

[0030] Furthermore, such as Figure 1 As shown, the outer wall of one end of the abutment rod 54 abuts against the inner wall of the support arm 52.

[0031] It should be noted that the bottom of the mounting head 51 described in this embodiment is fixedly connected with a threaded head, the top of the positioning rod 3 is provided with a threaded groove that matches the threaded head, and the top of the support arm 52 is provided with a guide groove.

[0032] The observation component 55 is mounted on top of the abutment rod 54.

[0033] Specifically, to accurately detect the symmetry of shaft parts, the operating table 2 is fixedly connected to the top of the support table 1, the positioning rod 3 is fixedly connected to the center of the top of the operating table 2, two sets of drive components 4 are provided and symmetrically installed at both ends of the operating table 2, the mounting head 51 is threadedly connected to the top of the positioning rod 3, one end of each of the two support arms 52 is symmetrically fixedly connected to the outer wall of the mounting head 51, one end of the adjusting screw 53 is threaded through the outer wall of the other end of the support arm 52 and rotatably connected to one end of the inner wall of the support arm 52, and one end of the contact rod 54 is threaded. The observation component 55 is installed on the top of the abutment rod 54 and connected to the outer wall of the adjusting screw 53. First, the shaft part is placed on the outside of the positioning rod 3. Then, by activating the two drive components 4 simultaneously, the outer wall of the part can be clamped, thereby ensuring that the center point of the shaft part is the same as the center point of the positioning rod 3. Then, by rotating the adjusting screw 53, the abutment rod 54 is moved. When the abutment rod 54 abuts against the outer wall of the shaft part, the observation component 55 can determine whether the distance between the outer wall of the shaft part and the center point is the same.

[0034] In one embodiment of this utility model, such as Figures 1-4 As shown, the observation component 55 includes a sliding sleeve 551, a pointer 552, and a scale 553. The sliding sleeve 551 is fixedly connected to the top of the positioning rod 3 and is slidably sleeved on the outer wall of the support arm 52. The pointer 552 is fixedly connected to the bottom of one side of the sliding sleeve 551, and the scale 553 is fixedly connected to the outer wall of the support arm 52.

[0035] It should be noted that, in this embodiment, the support arm 52 is symmetrically fixedly connected to both sides with guide strips, and the inner wall of the sliding sleeve 551 is provided with a limiting groove that matches the guide strips.

[0036] Specifically, in order to effectively detect the symmetry of the parts, since the sliding sleeve 551 is fixedly connected to the top of the positioning rod 3 and the sliding sleeve 551 is slidably sleeved on the outer wall of the support arm 52, the pointer 552 is fixedly connected to the bottom of one side of the sliding sleeve 551, and the scale 553 is fixedly connected to the outer wall of the support arm 52, when the sliding sleeve 551 slides to the corresponding position, the pointer 552 points on the scale 553. According to the indicated position, it can be determined whether the outer wall of the shaft part is symmetrical with the center position.

[0037] In one embodiment of this utility model, such as Figures 1-4 As shown, the drive assembly 4 includes a drive device 41, a guide plate 42, a support sleeve 43, and a clamping sleeve 44. The drive device 41 is installed at the end of the operating table 2. The output end of the drive device 41 passes through the side wall of the operating table 2 and is fixedly connected to one side of the guide plate 42. One end of the support sleeve 43 is fixedly connected to the other side of the guide plate 42. One end of the clamping sleeve 44 is fixedly connected to a plug rod, which is slidably engaged with the other end of the support sleeve 43.

[0038] Furthermore, such as Figure 2 As shown, a guide groove is provided on the top inner side of the operating table 2, and the two ends of the guide plate 42 are slidably engaged with the inner wall of the operating table 2.

[0039] It should be noted that the driving device 41 described in this embodiment is a cylinder, and the clamping sleeve 44 can be replaced according to the size of the shaft parts.

[0040] Specifically, to ensure that the center point of the shaft part is aligned with the center point of the positioning rod 3, the drive device 41 is installed at the end of the operating table 2. The output end of the drive device 41 passes through the side wall of the operating table 2 and is fixedly connected to one side of the guide plate 42. One end of the support sleeve 43 is fixedly connected to the other side of the guide plate 42, and one end of the clamping sleeve 44 is fixedly connected to a rod. The rod slides and engages with the other end of the support sleeve 43. By synchronously starting the two drive devices 41, the position of the guide plate 42 in the operating table 2 is adjusted. The two drive devices 41 have the same stroke, which allows the two clamping sleeves 44 to clamp the outer wall of the shaft part, thereby ensuring the accuracy of the inspection.

[0041] In summary, in the symmetry inspection instrument for shaft parts of this utility model embodiment, the observation component 55 is installed on the top of the abutment rod 54. First, the shaft part is placed outside the positioning rod 3. Then, by synchronously activating the two drive components 4, the outer wall of the part can be clamped, thereby ensuring that the center point of the shaft part is the same as the center point of the positioning rod 3. Then, by rotating the adjusting screw 53, the abutment rod 54 is moved. When the abutment rod 54 abuts against the outer wall of the shaft part, the observation component 55 can determine whether the distance between the outer wall of the shaft part and the center point is the same.

[0042] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0044] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A symmetry inspection instrument for shaft-type parts, characterized in that, It includes a support platform (1), an operating table (2), a positioning rod (3), a drive assembly (4), and a detection mechanism (5), wherein, The operating table (2) is fixedly connected to the top of the support platform (1), and the positioning rod (3) is fixedly connected to the center of the top of the operating table (2). The drive assembly (4) is provided in two sets and is symmetrically installed at both ends of the operating table (2); The detection mechanism (5) includes a mounting head (51), a support arm (52), an adjusting screw (53), a contact rod (54), and an observation component (55), wherein, The mounting head (51) is threaded to the top of the positioning rod (3), one end of each of the two support arms (52) is symmetrically fixed to the outer wall of the mounting head (51), one end of the adjusting screw (53) is threaded through the outer wall of the other end of the support arm (52) and rotatably connected to one end of the inner wall of the support arm (52), and one end of the abutment rod (54) is threaded onto the outer wall of the adjusting screw (53); The observation component (55) is mounted on top of the abutment rod (54).

2. The symmetry inspection instrument for shaft parts according to claim 1, characterized in that, The observation component (55) includes a sliding plate (551), a pointer (552), and a scale (553), wherein, The sliding sleeve (551) is fixedly connected to the top of the positioning rod (3), and the sliding sleeve (551) is slidably sleeved on the outer wall of the support arm (52); The pointer (552) is fixedly connected to the bottom side of the sliding sleeve (551), and the scale (553) is fixedly connected to the outer wall of the support arm (52).

3. The symmetry inspection instrument for shaft parts according to claim 1, characterized in that, The drive assembly (4) includes a drive device (41), a guide plate (42), a support sleeve (43), and a clamping sleeve (44), wherein, The drive device (41) is installed at the end of the operating table (2). The output end of the drive device (41) passes through the side wall of the operating table (2) and is fixedly connected to one side of the guide plate (42). One end of the support sleeve (43) is fixedly connected to the other side of the guide plate (42). One end of the clamping sleeve (44) is fixedly connected to a plug rod, and the plug rod is slidably engaged with the other end of the support sleeve (43).

4. The symmetry inspection instrument for shaft parts according to claim 3, characterized in that, The top inner side of the operating table (2) is provided with a guide groove, and the two ends of the guide plate (42) are slidably engaged with the inner wall of the operating table (2).

5. The symmetry inspection instrument for shaft parts according to claim 1, characterized in that, One end of the abutment rod (54) abuts against the inner wall of the support arm (52).