Annular workpiece concentricity detection tool convenient to adjust

Abstract

The utility model discloses an annular workpiece concentricity detection tool convenient to adjust, and relates to the technical field of concentricity detection, the annular workpiece concentricity detection tool comprises a bottom plate, one end of the top of the bottom plate is fixedly provided with a detection assembly, the top of the bottom plate is provided with two bearing assemblies and two fixing assemblies, each bearing assembly comprises a rotating bearing, and the rotating bearing is fixedly connected with the detection assembly. A sliding sleeve is fixedly installed on the inner side of the rotating bearing, a first sliding rod is arranged in the middle of the sliding sleeve in a penetrating mode, the first sliding rod is slidably connected with the sliding sleeve, a first suction cup is fixedly installed at the bottom of the first sliding rod, a first pinch bar is hinged to the top of the first sliding rod, and a first limiting shell is fixedly installed at the bottom of the sliding sleeve; the top of the first suction cup is sleeved with the first limiting shell, the bottom plate is made of stainless steel, and the top of the bottom plate is provided with a micro-textured surface; according to the utility model, the fixing position of the bearing assembly can be conveniently adjusted according to the diameter of the annular workpiece, and the device has higher practical value.

Description

Technical Field

[0001] This utility model relates to the field of concentricity detection technology, specifically to a tooling for detecting the concentricity of annular workpieces that is easy to adjust. Background Technology

[0002] Inspection fixtures are tools or devices specifically designed to inspect and verify the dimensions, shape, position, and other characteristics of products. Ring-shaped workpiece concentricity inspection fixtures are specialized testing equipment used to detect whether the inner and outer circles of a ring-shaped part are coaxial (i.e., concentric). These fixtures typically use a dial indicator fixed to a bracket, which has two bearings for rotating the ring-shaped workpiece. One side of the ring-shaped workpiece is pressed against the dial indicator, and it rotates one or more times to record the maximum and minimum reading differences between the inner and outer circles, thereby assessing concentricity.

[0003] Based on the above, the inventors have discovered the following problems: Current concentricity testing fixtures for annular workpieces require the annular workpiece to be placed against two bearings and the measuring end of a dial indicator. However, the two bearings are usually fixedly mounted on the base. This mounting method usually does not have adjustment capability and can only perform concentricity testing on annular workpieces of the same diameter, which is inconvenient to use.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided an easily adjustable tooling for detecting the concentricity of annular workpieces, in order to achieve a more practical purpose. Utility Model Content

[0005] The purpose of this invention is to provide an easily adjustable concentricity roundness detection fixture for annular workpieces, in order to solve the problems mentioned in the background art.

[0006] An easily adjustable concentricity inspection fixture for annular workpieces includes a base plate. A detection component is fixedly installed at one end of the top of the base plate. The top of the base plate is provided with two bearing assemblies and two fixing assemblies. Each bearing assembly includes a rotating bearing. A sliding sleeve is fixedly installed inside the rotating bearing. A first sliding rod is inserted through the middle of the sliding sleeve and is slidably connected to the sliding sleeve. A first suction cup is fixedly installed at the bottom of the first sliding rod. A first pry bar is hinged to the top of the first sliding rod and is located at the top of the sliding sleeve. A first limiting shell is fixedly installed at the bottom of the sliding sleeve and is fitted onto the top of the first suction cup. The base plate is made of stainless steel and has a micro-textured surface on its top.

[0007] By adopting the above technical solution, the base plate facilitates the fixed installation of the detection components, as well as the installation of the bearing and fixing components. The detection components facilitate the detection of the concentricity of the annular workpiece. The bearing and fixing components allow the bearing assembly to limit the outer side of the annular workpiece, while the fixing component pushes it from inside the workpiece, ensuring a tight fit between the workpiece and the bearing assembly and preventing displacement during concentricity measurement. The rotating bearing allows the annular workpiece to rotate synchronously with the measurement, avoiding obstruction of rotation. The sliding sleeve limits and guides the up-and-down sliding of the first sliding rod. The first suction cup facilitates the adsorption of the bearing assembly. Fixed to the base plate, the first pry bar allows the first sliding rod to slide upward when folded downward. The first limiting shell allows the first suction cup to slide upward as the sliding rod moves upward. The limiting shell also limits the edge of the first suction cup, increasing the vacuum inside and enhancing suction. This ensures the bearing assembly is securely attached to the base plate, allowing for easy disassembly and installation, and convenient adjustment of the bearing's position. The micro-textured surface on the top of the base plate provides moderate roughness, increasing friction between the first and second suction cups and the base plate, contributing to a more stable seal and thus a more stable fixation of the bearing assembly and the mounting assembly.

[0008] Furthermore, the fixing component includes a fixing base, a second limiting shell at the bottom of the fixing base, a sliding hole in the middle of the fixing base, a second sliding rod slidably connected inside the sliding hole, a second pry plate hinged to the top of the second sliding rod, a second suction cup fixedly installed at the bottom of the second sliding rod, and an elastic sheet fixedly installed on one side of the fixing base.

[0009] By adopting the above technical solution, an elastic sheet is fixedly installed on one side of the fixed base, and the second pry bar is flipped to control the second suction cup to be adsorbed and fixed on the top of the base plate, thereby realizing the adjustment and fixation of the position of the fixed component. This allows the elastic force of the elastic sheet to push inside the annular workpiece, so that the outer side of the annular workpiece can be tightly attached to the rotating bearing, avoiding displacement of the rotating annular workpiece during testing.

[0010] Furthermore, the detection component includes a dial indicator and a guide sleeve, with a sleeve on one side of the dial indicator and a probe on one end of the sleeve.

[0011] By adopting the above technical solution, the probe is set to facilitate contact between the probe and the outer side of the ring-shaped workpiece, making it convenient to detect the concentricity of the ring-shaped workpiece. The dial indicator displays the reading, and the difference between the maximum and minimum readings is used to evaluate the concentricity.

[0012] Furthermore, the bottom of the guide sleeve is fixedly connected to the base plate, and a sliding block is slidably connected inside the guide sleeve.

[0013] By adopting the above technical solution and setting the guide sleeve, it is convenient to limit and guide the sliding of the sliding block.

[0014] Furthermore, the sliding block is sleeved on the outside of the sleeve, and the sliding block is fixedly connected to the sleeve.

[0015] By adopting the above technical solution, the sliding block is fixedly connected to the sleeve, which facilitates the sliding of the sliding block to drive the probe to move up and down, thereby making it convenient for the device to detect the concentricity of different contour lines of the annular workpiece.

[0016] Furthermore, a ruler rod is fixedly installed at the top of one end of the sliding block, and a threaded sleeve is fixedly installed inside the other end of the sliding block.

[0017] By adopting the above technical solution, the threaded sleeve and the scale rod are designed to facilitate the up-and-down movement of the threaded sleeve, which in turn drives the sliding block and the scale rod to move up and down.

[0018] Furthermore, the threaded sleeve has a threaded rod internally connected to it, and the top and bottom ends of the threaded rod are rotatably connected to the guide sleeve and the base plate, respectively.

[0019] By adopting the above technical solution, the threaded rod is designed to facilitate the rotation of the threaded rod, which in turn enables the threaded sleeve to drive the sliding block to move up and down.

[0020] Furthermore, a knob is fixedly installed on the top of the threaded rod, and the knob is located at the top of the guide sleeve.

[0021] By adopting the above technical solution, the knob is designed to facilitate control of the threaded rod rotation.

[0022] Furthermore, the top of the ruler rod extends to the top of the guide sleeve, and the surface of the ruler rod is provided with graduations. By adopting the above technical solution, the graduations on the surface of the ruler rod facilitate the display of the height position of the measuring point by the part of the ruler rod extending out of the guide sleeve, which is used to display the height of the contour lines for measuring the annular workpiece.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows: The base plate facilitates the fixed installation of the detection components, and also facilitates the installation of the bearing components and fixing components. The detection components facilitate the detection of the concentricity of the annular workpiece. The bearing components and fixing components facilitate the bearing components to limit the outer side of the annular workpiece, and the fixing components push from inside the annular workpiece, ensuring that the outer side of the workpiece tightly fits the bearing components, preventing displacement during concentricity detection. The rotating bearing facilitates the annular workpiece to rotate synchronously with the workpiece during concentricity measurement, avoiding obstruction of the workpiece's rotation. The sliding sleeve facilitates the limiting and guiding of the up-and-down sliding of the first sliding rod. The first suction cup facilitates the adsorption and fixing of the bearing components to the base plate. The first pry bar... When the first pry bar is folded downwards, it can drive the first sliding rod to slide upwards. The first limiting shell facilitates the upward sliding of the first sliding rod, which in turn drives the first suction cup to slide upwards. The first limiting shell limits the edge of the first suction cup, increasing the vacuum inside the suction cup and improving suction force. This allows for the stable adsorption and fixation of the bearing assembly to the base plate, while also enabling convenient disassembly and installation. It facilitates adjustment of the bearing's position. The micro-textured surface on the top of the base plate provides a suitable roughness, increasing the friction between the first and second suction cups and the base plate, contributing to a more stable seal and thus achieving a more stable fixation of the bearing assembly and the fixing component. This invention allows for convenient adjustment of the bearing assembly's fixing position according to the diameter of the annular workpiece, demonstrating high practical value. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of a ring-shaped workpiece concentricity detection fixture that is easy to adjust according to the present invention.

[0025] Figure 2 This is a three-dimensional structural diagram of the bearing assembly of this utility model;

[0026] Figure 3 This is an exploded view of the bearing assembly of this utility model;

[0027] Figure 4 This is an exploded view of the fixing component of this utility model;

[0028] Figure 5 This is an exploded view of the detection component of this utility model.

[0029] In the diagram: 1. Base plate; 2. Bearing assembly; 21. Rotary bearing; 22. Sliding sleeve; 23. First sliding rod; 24. First suction cup; 25. First limiting shell; 26. First pry bar; 3. Detection assembly; 31. Dial indicator; 32. Guide sleeve; 33. Sleeve; 34. Probe; 35. Sliding block; 36. Threaded sleeve; 37. Scale rod; 38. Threaded rod; 39. Knob; 4. Fixing assembly; 41. Fixing base; 42. Second limiting shell; 43. Sliding hole; 44. Elastic sheet; 45. Second sliding rod; 46. Second suction cup; 47. Second pry bar. 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] Please see Figures 1-5This utility model provides a technical solution: an easily adjustable concentricity detection fixture for annular workpieces, including a base plate 1. The base plate 1 facilitates the fixed installation of a detection component 3, as well as the installation of bearing components 2 and fixing components 4. The detection component 3 is fixedly installed at one end of the top of the base plate 1. The detection component 3 facilitates the detection of the concentricity of the annular workpiece. The top of the base plate 1 is provided with two bearing components 2 and two fixing components 4. The bearing components 2 and fixing components 4 facilitate the limiting of the outer side of the annular workpiece by the bearing components 2, and the fixing components 4 are located inside the annular workpiece. The push mechanism ensures that the outer side of the workpiece fits tightly against the bearing assembly 2, preventing displacement during concentricity testing. The bearing assembly 2 includes a rotary bearing 21. The rotary bearing 21 allows the workpiece to rotate synchronously with it during concentricity measurement, avoiding obstruction of rotation. A sliding sleeve 22 is fixedly installed inside the rotary bearing 21, with a first sliding rod 23 inserted through its center. The sliding sleeve 22 limits and guides the vertical movement of the first sliding rod 23. The first sliding rod 23 is slidably connected to the sliding sleeve 22, and a first suction cup is fixedly installed at the bottom of the first sliding rod 23. 24. The first suction cup 24 facilitates the adsorption and fixation of the bearing assembly 2 onto the base plate 1. The top of the first sliding rod 23 is hinged to a first pry bar 26. The first pry bar 26 facilitates the upward sliding of the first sliding rod 23 when it is folded downward. The first pry bar 26 is located on the top of the sliding sleeve 22. A first limiting shell 25 is fixedly installed at the bottom of the sliding sleeve 22. The first limiting shell 25 is fitted onto the top of the first suction cup 24. The first limiting shell 25 facilitates the upward sliding of the first sliding rod 23, which in turn drives the first suction cup 24 to slide upward. The first limiting shell 25 provides support for the first suction cup 24. The edge of the suction cup 4 is used to limit the vacuum inside the first suction cup 24, thereby increasing the suction force and firmly adsorbing and fixing the bearing assembly 2 onto the base plate 1. It can also be easily disassembled and installed, and the position of the rotating bearing 21 can be easily adjusted. The base plate 1 is made of stainless steel and has a micro-textured surface on the top. The micro-textured surface on the top of the base plate 1 makes the surface of the base plate 1 have a moderate roughness, which can increase the friction between the first suction cup 24 and the second suction cup 46 and the base plate 1, which helps to form a more stable seal, thereby achieving a more stable fixation of the bearing assembly 2 and the fixing assembly 4.

[0032] The fixing component 4 includes a fixing base 41, a second limiting shell 42 at the bottom of the fixing base 41, a sliding hole 43 in the middle of the fixing base 41, a second sliding rod 45 slidably connected inside the sliding hole 43, a second pry bar 47 hinged to the top of the second sliding rod 45, and a second suction cup 46 fixedly installed at the bottom of the second sliding rod 45. An elastic sheet 44 is fixedly installed on one side of the fixing base 41. By fixing the elastic sheet 44 on one side of the fixing base 41 and flipping the second pry bar 47, the second suction cup 46 is controlled to be adsorbed and fixed on the top of the base plate 1, thereby realizing the adjustment and fixation of the position of the fixing component 4. This allows the elastic force of the elastic sheet 44 to push inside the annular workpiece, so that the outer side of the annular workpiece can be tightly attached to the rotating bearing 21, preventing displacement of the rotating annular workpiece during testing. The detection component 3 includes a dial indicator 31 and a guide sleeve 32. The dial indicator 31 has a sleeve 33 on one side and a probe 34 on one end of the sleeve 33. The probe 34 is positioned so that it can be pressed against the outer side of the annular workpiece, which facilitates the detection of the concentricity of the annular workpiece. The dial indicator 31 displays the reading, and the difference between the maximum and minimum readings is used to evaluate the concentricity.

[0033] The bottom of the guide sleeve 32 is fixedly connected to the base plate 1, and a sliding block 35 is slidably connected inside the guide sleeve 32. The guide sleeve 32 facilitates the limiting and guiding of the sliding block 35.

[0034] The sliding block 35 is sleeved on the outside of the sleeve 33 and is fixedly connected to the sleeve 33. The fixed connection between the sliding block 35 and the sleeve 33 facilitates the sliding of the sliding block 35 to drive the probe 34 to move up and down, thereby facilitating the device to detect the concentricity of different contour lines of the annular workpiece.

[0035] Among them, a scale rod 37 is fixedly installed on the top of one end of the sliding block 35, and a threaded sleeve 36 is fixedly installed inside the other end of the sliding block 35. The threaded sleeve 36 and the scale rod 37 are arranged so that the sliding block 35 and the scale rod 37 can move up and down by moving the threaded sleeve 36.

[0036] The threaded sleeve 36 has a threaded rod 38 inside. The top and bottom ends of the threaded rod 38 are rotatably connected to the guide sleeve 32 and the base plate 1, respectively. The threaded rod 38 facilitates the rotation of the threaded rod 38, which enables the threaded sleeve 36 to drive the sliding block 35 to move up and down.

[0037] A knob 39 is fixedly mounted on the top of the threaded rod 38. The knob 39 is located at the top of the guide sleeve 32, facilitating the rotation of the threaded rod 38. A scale rod 37 extends to the top of the guide sleeve 32, and its surface is marked with graduations. These graduations allow the portion of the scale rod 37 extending out of the guide sleeve 32 to display the height of the measuring point, specifically the height of the contour lines for measuring the annular workpiece.

[0038] Specifically, the working principle of this easily adjustable annular workpiece concentricity testing fixture is as follows: During use, the rotating bearing 21 allows the annular workpiece to rotate synchronously with the bearing during concentricity measurement, avoiding obstruction of rotation. The sliding sleeve 22 limits and guides the up-and-down sliding of the first sliding rod 23. The first suction cup 24 allows the bearing assembly 2 to be adsorbed and fixed onto the base plate 1. The first pry bar 26 allows the first sliding rod 23 to slide upwards when folded downwards. The first limiting shell 25... The first sliding rod 23 is positioned to allow the first suction cup 24 to slide upwards when it slides upwards. The first limiting shell 25 limits the edge of the first suction cup 24, increasing the vacuum inside the first suction cup 24 and improving the suction force. This allows for the stable adsorption and fixation of the bearing assembly 2 onto the base plate 1, and facilitates easy disassembly and installation. It also allows for convenient adjustment of the position of the rotating bearing 21. The micro-textured surface on the top of the base plate 1 provides a suitable roughness, increasing the friction between the first suction cup 24, the second suction cup 46, and the base plate 1, which helps to form a more stable seal. To achieve a more stable fixed bearing assembly 2 and fixed assembly 4, an elastic plate 44 is fixedly installed on one side of the fixed base 41. Folding the second pry bar 47 controls the second suction cup 46 to adhere and fix it to the top of the base plate 1, thereby realizing the adjustment and fixation of the fixed assembly 4. This allows the elastic force of the elastic plate 44 to push inside the annular workpiece, ensuring that the outer side of the annular workpiece is tightly attached to the rotating bearing 21, preventing displacement of the rotating annular workpiece during testing. The knob 39 facilitates the control of the threaded rod 38 by rotating the knob 39. The rotation of the threaded rod 38 allows the threaded sleeve 36 to drive the sliding block 35 to move up and down. The threaded sleeve 36 and the scale rod 37 facilitate the up and down movement of the threaded sleeve 36, which in turn drives the sliding block 35 and the scale rod 37 to move up and down. The scale rod 37 has graduations on its surface, allowing the part of the scale rod 37 extending out of the guide sleeve 32 to display the height position of the measuring point. This is used to display the height of the contour lines of the annular workpiece. The sliding block 35 is fixedly connected to the sleeve 33, allowing the sliding block 35 to drive the measuring head 34 to move up and down. This facilitates the device to detect the concentricity of different contour lines of the annular workpiece.

[0039] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fixture for easily adjustable concentricity detection of annular workpieces, characterized in that, The system includes a base plate (1), a detection component (3) is fixedly installed at one end of the top of the base plate (1), and two bearing components (2) and two fixing components (4) are provided on the top of the base plate (1). The bearing components (2) include a rotating bearing (21), a sliding sleeve (22) is fixedly installed on the inner side of the rotating bearing (21), a first sliding rod (23) is inserted through the middle of the sliding sleeve (22), the first sliding rod (23) is slidably connected to the sliding sleeve (22), a first suction cup (24) is fixedly installed at the bottom of the first sliding rod (23), a first pry bar (26) is hinged at the top of the first sliding rod (23), the first pry bar (26) is set at the top of the sliding sleeve (22), a first limiting shell (25) is fixedly installed at the bottom of the sliding sleeve (22), the first limiting shell (25) is sleeved on the top of the first suction cup (24), the base plate (1) is made of stainless steel, and the top of the base plate (1) has a micro-textured surface.

2. The easily adjustable concentricity roundness detection fixture for annular workpieces according to claim 1, characterized in that, The fixing component (4) includes a fixing base (41), the bottom of the fixing base (41) is provided with a second limiting shell (42), the middle of the fixing base (41) is provided with a sliding hole (43), a second sliding rod (45) is slidably connected inside the sliding hole (43), a second pry plate (47) is hinged to the top of the second sliding rod (45), and a second suction cup (46) is fixedly installed at the bottom of the second sliding rod (45). An elastic sheet (44) is fixedly installed on one side of the fixing base (41).

3. The easily adjustable concentricity roundness detection fixture for annular workpieces according to claim 2, characterized in that, The detection component (3) includes a dial indicator (31) and a guide sleeve (32). The dial indicator (31) has a sleeve (33) on one side and a probe (34) on one end of the sleeve (33).

4. The easily adjustable concentricity roundness detection fixture for annular workpieces according to claim 3, characterized in that, The bottom of the guide sleeve (32) is fixedly connected to the base plate (1), and a sliding block (35) is slidably connected inside the guide sleeve (32).

5. The easily adjustable concentricity roundness detection fixture for annular workpieces according to claim 4, characterized in that, The sliding block (35) is sleeved on the outside of the sleeve (33), and the sliding block (35) is fixedly connected to the sleeve (33).

6. The easily adjustable concentricity roundness detection fixture for annular workpieces according to claim 5, characterized in that, A ruler rod (37) is fixedly installed at the top of one end of the sliding block (35), and a threaded sleeve (36) is fixedly installed inside the other end of the sliding block (35).

7. The easily adjustable concentricity roundness detection fixture for annular workpieces according to claim 6, characterized in that, The threaded sleeve (36) has a threaded rod (38) inside, and the top and bottom ends of the threaded rod (38) are rotatably connected to the guide sleeve (32) and the base plate (1), respectively.

8. The easily adjustable concentricity roundness detection fixture for annular workpieces according to claim 7, characterized in that, A knob (39) is fixedly installed on the top of the threaded rod (38), and the knob (39) is located at the top of the guide sleeve (32).

9. The easily adjustable concentricity roundness detection fixture for annular workpieces according to claim 8, characterized in that, The top of the ruler rod (37) extends to the top of the guide sleeve (32), and the surface of the ruler rod (37) is provided with scale.

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