A coaxiality measuring tool

Abstract

This application belongs to the field of measuring tooling technology and discloses a coaxiality measuring tooling, including a base plate, a worktable on the base plate, a mounting groove on the top surface of the worktable, two sliding seats slidably disposed in the mounting groove, a driving component on the worktable for driving the two sliding seats to slide synchronously in opposite directions, two sliding blocks slidably disposed on the sliding seats, two vertical plates spaced apart on the top of the sliding blocks, a support roller horizontally rotatably disposed between the two vertical plates, an adjusting component on the worktable for driving the two sliding blocks to slide synchronously in opposite directions, and a measuring component on the base plate. The driving component drives the synchronously in opposite-sliding sliding seats, and the adjusting component can drive the synchronously in opposite-sliding sliding blocks, allowing the position of the support roller on the sliding blocks to be flexibly adjusted, thereby accommodating samples of different diameters and enabling the placement of workpieces of various specifications, improving the versatility and applicability of the tooling.

Description

Technical Field

[0001] This utility model relates to the field of measuring tooling technology, and in particular to a coaxiality measuring tooling. Background Technology

[0002] Coaxiality is a positioning tolerance; the theoretically correct position is the datum axis. Since the measured axis may have different points relative to the datum axis in various directions in space, its tolerance is represented by a cylinder with the datum axis as its axis. The tolerance value is the diameter of this cylinder, always preceded by the symbol "Φ". Coaxiality is typically measured using coaxiality measuring fixtures.

[0003] Currently, most existing measuring fixtures cannot adapt to workpieces of different lengths and diameters. They lack flexibility in supporting and placing workpieces of various specifications, often limiting their application to specific sizes, wasting resources, and causing inconvenience. Furthermore, for workpieces of different diameters, the distance between support points cannot be adjusted appropriately, making it difficult to ensure the stability of the workpiece support and increasing the risk of workpiece falling and other safety issues. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a coaxiality measuring fixture.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a coaxiality measuring fixture, including a base plate, a worktable on the base plate, an installation groove on the top surface of the worktable, two sliding seats slidably disposed in the installation groove, a driving component on the worktable for driving the two sliding seats to slide synchronously in opposite directions, two sliding blocks slidably disposed on the sliding seats, two vertical plates spaced apart on the top of the sliding blocks, a support roller horizontally rotatably disposed between the two vertical plates, an adjusting component on the worktable for driving the two sliding blocks to slide synchronously in opposite directions, and a measuring component on the base plate.

[0006] By adopting the above technical solution, a base plate, worktable, drive assembly, support rollers, and adjustment assembly are set up. When the workpiece length is short, the drive assembly will drive the two sliding blocks to move closer together, thereby reducing the axial distance between the corresponding support rollers. If the workpiece diameter is large, the adjustment assembly will drive the two sliding blocks to move in opposite directions, increasing the radial distance between the corresponding support rollers, thereby expanding the distance between the support points for the workpiece, ensuring support stability, and preventing safety issues such as workpiece falling. The measuring assembly is used to detect the coaxiality deviation of the workpiece.

[0007] Furthermore, the measuring component includes a column vertically mounted on a base plate, a mounting frame slidably mounted on the column, a threaded hole penetrating the frame on one side of the mounting frame, a threaded iron rod spirally mounted inside the threaded hole, a control handle mounted on the end of the threaded iron rod away from the column, an extension plate mounted on the side of the mounting frame near the workbench, and a dial indicator mounted on the extension plate.

[0008] By adopting the above technical solution, a column, mounting frame, and control handle are provided. The mounting frame can slide vertically along the column, facilitating the adjustment of the dial indicator's vertical position according to the workpiece height. Rotating the control handle causes the threaded iron rod to rotate, causing one end of the threaded iron rod to contact the column, thereby fixing the positions of the mounting frame, extension plate, and dial indicator.

[0009] Furthermore, the drive assembly includes a first bidirectional threaded rod that is horizontally rotatably disposed in the mounting groove. The first bidirectional threaded rod is provided with two sections of threads with opposite directions and equal pitch. The two sliding seats are symmetrically distributed on the two sections of threads of the first bidirectional threaded rod and are helically connected. One end of the first bidirectional threaded rod passes through the worktable and is provided with a rotating handle.

[0010] By adopting the above technical solution, a first bidirectional threaded rod and a rotating handle are set. The rotating handle drives the first bidirectional threaded rod to rotate, which in turn drives the two sliding seats to slide synchronously in opposite directions within the mounting groove.

[0011] Furthermore, the adjustment component includes a fixed base disposed in the middle of the mounting groove, two adjustment blocks slidably disposed on the fixed base, square rods disposed on both sides of the adjustment blocks, and a square hole horizontally opened on the sliding block, the square hole being slidably connected to the corresponding square rod.

[0012] By adopting the above technical solution, a fixed seat, an adjusting block, and a square rod are set up. When the mounting seat slides, it drives the sliding block to slide on the square rod. When the adjusting block moves, it drives the square rod to move, and the sliding block slides on the sliding seat.

[0013] Furthermore, the adjustment assembly also includes two vertical plates spaced apart on the top surface of the workbench, with a second bidirectional threaded rod horizontally rotatably arranged between the two vertical plates. The second bidirectional threaded rod has two sections of threads with opposite directions and equal pitch. Two adjustment blocks are symmetrically distributed on the two sections of threads of the second bidirectional threaded rod and are helically connected. One end of the second bidirectional threaded rod passes through the vertical plate and is provided with an adjustment handle.

[0014] By adopting the above technical solution, a vertical plate, a second bidirectional threaded rod, and an adjustment handle are set up. Rotating the adjustment handle drives the second bidirectional threaded rod to rotate, thereby adjusting the position of the adjustment block.

[0015] Furthermore, the workbench is provided with side plates on both sides, and the side plates are provided with sliding grooves. The openings of the two sliding grooves are opposite each other, and the end of the square rod is slidably connected to the corresponding sliding groove.

[0016] By adopting the above technical solution, side plates and sliding grooves are installed to ensure the stability of the square rod's movement.

[0017] Furthermore, the sliding seat is provided with a first slide rail, the sliding block is slidably connected to the first slide rail, the fixed seat is provided with a second slide rail, and the adjusting block is slidably connected to the second slide rail.

[0018] By adopting the above technical solution and setting the first slide rail and the second slide rail, the stability of the sliding block and the adjusting block is ensured.

[0019] In summary, this utility model has the following beneficial effects:

[0020] 1. This application includes a base plate, a worktable, a drive assembly, support rollers, and an adjustment assembly. When the workpiece is short, the drive assembly moves the two sliding blocks closer together, thereby reducing the axial distance between the corresponding support rollers. If the workpiece diameter is large, the adjustment assembly drives the two sliding blocks to move in opposite directions, increasing the radial distance between the corresponding support rollers. This expands the distance between the support points on the workpiece, ensuring stable support and preventing safety issues such as workpiece falling. The measuring assembly is used to detect the coaxiality deviation of the workpiece. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the workbench according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the sliding seat and adjustment component according to an embodiment of this utility model.

[0024] In the diagram: 10. Base plate; 11. Workbench; 12. Mounting slot; 20. Sliding seat; 21. Sliding block; 22. Vertical plate; 23. Support roller; 24. First slide rail; 30. Drive assembly; 31. First bidirectional threaded rod; 32. Rotating handle; 40. Adjustment assembly; 41. Fixed seat; 42. Adjusting block; 43. Square rod; 44. Vertical plate; 45. Second bidirectional threaded rod; 46. Adjusting handle; 47. Second slide rail; 50. Measuring assembly; 51. Column; 52. Mounting frame; 53. Threaded iron rod; 54. Control handle; 55. Extension plate; 56. Dial indicator; 60. Side plate; 61. Slide groove. Detailed Implementation

[0025] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] like Figure 1-3 As shown in the figure, this application discloses a coaxiality measuring fixture, including a base plate 10, a worktable 11, a drive assembly 30, a support roller 23, and an adjustment assembly 40. The worktable 11 is mounted on the base plate 10, and a mounting groove 12 is provided on the top surface of the worktable 11. Two sliding seats 20 are slidably disposed in the mounting groove 12. The drive assembly 30 is disposed on the worktable 11 and is used to drive the two sliding seats 20 to slide synchronously in opposite directions. Two sliding blocks 21 are slidably disposed on the sliding seats 20. The sliding direction of the sliding blocks 21 is perpendicular to the sliding direction of the sliding seats 20. Two vertical plates 22 are spaced apart on the top of the sliding blocks 21. A support roller 23 is horizontally rotatably disposed between the two vertical plates 22. The adjustment assembly 40 is disposed on the worktable 11 and is used to drive the two sliding blocks 21 to slide synchronously in opposite directions. A measuring assembly 50 is disposed on the base plate 10. The sliding seat 20, which is driven by the driving component 30 to slide synchronously in the opposite direction, and the sliding block 21, which can be driven by the adjusting component 40 to slide synchronously in the opposite direction, allow the position of the support roller 23 on the sliding block 21 to be flexibly adjusted, thereby adapting to samples of different diameters, realizing the placement of workpieces of various specifications, and improving the versatility and applicability of the tooling.

[0027] When the workpiece is short, the drive assembly 30 moves the two sliding blocks 20 closer together, thereby reducing the axial distance between the corresponding support rollers 23. When the workpiece is long, the drive assembly 30 moves the two sliding blocks 20 further apart, thereby increasing the axial distance between the corresponding support rollers 23. If the workpiece diameter is large, the adjustment assembly 40 drives the two sliding blocks 21 to move in opposite directions, increasing the radial distance between the corresponding support rollers 23, thus widening the distance between the support points for the workpiece, ensuring stable support, and preventing safety issues such as workpiece falling. Simultaneously, the measuring assembly 50 can detect the coaxiality deviation of the workpiece.

[0028] Specifically, the drive assembly 30 includes a first bidirectional threaded rod 31 horizontally rotatably disposed within the mounting groove 12, the length direction of the first bidirectional threaded rod 31 being consistent with the length direction of the worktable 11. The first bidirectional threaded rod 31 has two sections of threads with opposite directions and equal pitch. Two sliding seats 20 are symmetrically distributed on the two sections of threads of the first bidirectional threaded rod 31 and are helically connected. One end of the first bidirectional threaded rod 31 passes through the worktable 11 and is provided with a rotating handle 32. The rotating handle 32 drives the first bidirectional threaded rod 31 to rotate, driving the two sliding seats 20 to slide synchronously in opposite directions within the mounting groove 12.

[0029] During setup, the adjustment assembly 40 includes a fixed base 41 located in the middle of the mounting slot 12. Two adjustment blocks 42 are slidably mounted on the fixed base 41, with the sliding direction of the adjustment blocks 42 being the same as that of the sliding block 21. Square rods 43 are provided on both sides of each adjustment block 42. A square hole is horizontally opened on the sliding block 21, and the square hole is slidably connected to the corresponding square rod 43. When the mounting base slides, it causes the sliding block 21 to slide on the square rod 43. When the adjustment block 42 moves, causing the square rod 43 to move, the sliding block 21 slides on the sliding base 20. The adjustment assembly 40 also includes two vertical plates 44 spaced apart on the top surface of the worktable 11. A second bidirectional threaded rod 45 is horizontally rotatably mounted between the two vertical plates 44, and the length direction of the second bidirectional threaded rod 45 is perpendicular to the length direction of the first bidirectional threaded rod 31. The second bidirectional threaded rod 45 has two sections of threads with opposite directions and equal pitch. Two adjusting blocks 42 are symmetrically distributed on the two sections of threads of the second bidirectional threaded rod 45 and are screwed together. One end of the second bidirectional threaded rod 45 passes through the vertical plate 44 and is equipped with an adjusting handle 46. Rotating the adjusting handle 46 causes the second bidirectional threaded rod 45 to rotate, thereby adjusting the position of the adjusting block 42. Side plates 60 are provided on both sides of the workbench 11. The side plates 60 have grooves 61, and the length of the grooves 61 is the same as the length of the second bidirectional threaded rod 45. The openings of the two grooves 61 are opposite each other, and the end of the square rod 43 is slidably connected to the corresponding groove 61 to ensure the stability of the movement of the square rod 43. The sliding seat 20 is equipped with a first slide rail 24, and the sliding block 21 is slidably connected to the first slide rail 24. The fixed seat 41 is equipped with a second slide rail 47, and the adjusting block 42 is slidably connected to the second slide rail 47 to ensure the stability of the sliding of the sliding block 21 and the adjusting block 42.

[0030] In its specific configuration, the measuring component 50 includes a vertically mounted column 51 on the base plate 10. A mounting frame 52 is vertically slidably fitted onto the column 51, allowing the mounting frame 52 to rise and fall on the column 51. A threaded hole penetrating the frame is horizontally opened on one side of the mounting frame 52, and a threaded iron rod 53 is spirally installed within the threaded hole. A control handle 54 is located at the end of the threaded iron rod 53 away from the column 51. An extension plate 55 is located on the side of the mounting frame 52 adjacent to the worktable 11, and a dial indicator 56 is mounted on the extension plate 55. The mounting frame 52 can slide vertically along the column 51, facilitating adjustment of the vertical position of the dial indicator 56 according to the workpiece height. Rotating the control handle 54 causes the threaded iron rod 53 to rotate, causing one end of the threaded iron rod 53 to contact the column 51, thereby fixing the positions of the mounting frame 52, the extension plate 55, and the dial indicator 56.

[0031] The working principle of the coaxiality measuring fixture in this embodiment is as follows: Before placing the workpiece, rotate the handle 32 and the first bidirectional threaded rod 31 according to the workpiece length, so that the two sliding seats 20 slide synchronously in opposite directions within the mounting groove 12. When the workpiece length is short, move the sliding seats 20 closer together to reduce the axial distance between the support rollers 23; when the workpiece length is long, move the sliding seats 20 further apart to increase the axial distance between the support rollers 23. Then, rotate the adjusting handle 46 and the second bidirectional threaded rod 45 according to the workpiece diameter, so that the two adjusting blocks 42 slide synchronously in opposite directions on the second slide rail 47 of the fixed seat 41. The movement of the adjusting blocks 42 causes the square rod 43 to slide in the slide groove 61 of the side plate 60, thereby causing the sliding block 21 to slide synchronously in opposite directions on the first slide rail 24 of the sliding seat 20, adjusting the distance of the support rollers 23 in the radial direction. If the workpiece diameter is large, increase the spacing to expand the distance between the support points and ensure stable support. Then, place the workpiece stably on the four support rollers 23 to ensure that the workpiece is stably supported. Next, the sliding mounting frame 52 moves vertically along the column 51. The dial indicator 56 is adjusted to a suitable vertical position according to the workpiece height. The control handle 54 and the threaded iron rod 53 are rotated so that one end of the threaded iron rod 53 contacts the column 51, fixing the positions of the mounting frame 52, extension plate 55, and dial indicator 56, ensuring that the dial indicator 56 probe is in contact with the workpiece surface. The workpiece is rotated, and the coaxiality deviation of the workpiece is detected by the change in the dial indicator 56 reading.

[0032] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A coaxiality measuring fixture, characterized in that: The system includes a base plate (10), a worktable (11) on the base plate (10), an installation groove (12) on the top surface of the worktable (11), two sliding seats (20) slidably disposed in the installation groove (12), a drive assembly (30) on the worktable (11) for driving the two sliding seats (20) to slide synchronously in opposite directions, two sliding blocks (21) slidably disposed on the sliding seats (20), two upright plates (22) spaced apart on the top of the sliding blocks (21), a support roller (23) horizontally rotatably disposed between the two upright plates (22), an adjustment assembly (40) on the worktable (11) for driving the two sliding blocks (21) to slide synchronously in opposite directions, and a measuring assembly (50) on the base plate (10).

2. The coaxiality measuring fixture according to claim 1, characterized in that: The measuring component (50) includes a column (51) vertically mounted on a base plate (10), a mounting frame (52) vertically slidably mounted on the column (51), a threaded hole penetrating the frame is horizontally opened on one side of the mounting frame (52), a threaded iron rod (53) is spirally mounted in the threaded hole, a control handle (54) is provided at the end of the threaded iron rod (53) away from the column (51), an extension plate (55) is provided on the side of the mounting frame (52) near the workbench (11), and a dial indicator (56) is provided on the extension plate (55).

3. The coaxiality measuring fixture according to claim 1, characterized in that: The drive assembly (30) includes a first bidirectional threaded rod (31) that is horizontally rotatably disposed in the mounting groove (12). The first bidirectional threaded rod (31) is provided with two threads with opposite directions and equal pitch. The two sliding seats (20) are symmetrically distributed on the two threads of the first bidirectional threaded rod (31) and are connected by a screw. One end of the first bidirectional threaded rod (31) passes through the worktable (11) and is provided with a rotating handle (32).

4. The coaxiality measuring fixture according to claim 1, characterized in that: The adjustment assembly (40) includes a fixed seat (41) disposed in the middle of the mounting groove (12). Two adjustment blocks (42) are slidably disposed on the fixed seat (41). Square rods (43) are provided on both sides of the adjustment blocks (42). A square hole is horizontally opened on the sliding block (21), and the square hole is slidably connected to the corresponding square rod (43).

5. The coaxiality measuring fixture according to claim 4, characterized in that: The adjustment assembly (40) also includes two vertical plates (44) spaced apart on the top surface of the workbench (11). A second bidirectional threaded rod (45) is horizontally rotatably arranged between the two vertical plates (44). The second bidirectional threaded rod (45) is provided with two sections of threads with opposite directions and equal pitch. Two adjustment blocks (42) are symmetrically distributed on the two sections of threads of the second bidirectional threaded rod (45) and are spirally connected. One end of the second bidirectional threaded rod (45) passes through the vertical plate (44) and is provided with an adjustment handle (46).

6. The coaxiality measuring fixture according to claim 4, characterized in that: The workbench (11) is provided with side plates (60) on both sides, and the side plates (60) are provided with sliding grooves (61). The openings of the two sliding grooves (61) are opposite to each other, and the end of the square rod (43) is slidably connected to the corresponding sliding groove (61).

7. The coaxiality measuring fixture according to claim 4, characterized in that: The sliding seat (20) is provided with a first slide rail (24), the sliding block (21) is slidably connected to the first slide rail (24), the fixed seat (41) is provided with a second slide rail (47), and the adjusting block (42) is slidably connected to the second slide rail (47).

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