Radial circle run-out measuring device

Abstract

The utility model provides a radial circle run-out measuring device which comprises a base, a measuring assembly and a fixing assembly, the fixing assembly and the measuring assembly are both arranged on the base, the measuring assembly is arranged on one side of the fixing assembly in a sliding mode, and the fixing assembly comprises a fixing seat, a sliding seat, an adjusting rod, an elastic piece and an adjusting seat. The fixed seat, the sliding seat and the adjusting seat are sequentially arranged, a first jacking column is arranged on the side, facing the adjusting seat, of the sliding seat in a protruding mode, a second jacking column is arranged on the side, facing the sliding seat, of the adjusting seat in a protruding mode, the adjusting rod is connected with the sliding seat and the fixed seat, and the elastic piece is elastically connected between the sliding seat and the fixed seat in an abutting mode. The elastic piece applies elastic force moving towards the adjusting base to the sliding base, and the adjusting rod can drive the sliding base to move back to the adjusting base so as to adjust the distance between the first jacking column and the second jacking column. The utility model has the advantages of simple and convenient operation.

Description

Technical Field

[0001] The utility model relates to the field of measuring devices, and particularly to a radial runout measuring device. Background Art

[0002] As Figure 1 shown in the workpiece, which is in a sleeve shape, openings are provided at both ends of the workpiece, and a cylindrical surface is provided between both ends of the workpiece. After the workpiece is produced, it is necessary to measure the radial runout of the cylindrical surface.

[0003] In the prior art, there is a radial runout measuring instrument with a publication number of CN210923032U. Although it can measure the shafts to be measured with different lengths, when adjusting the distance between the first stabilizing member and the second stabilizing member, the adjusting member needs to be rotated several times, and the operation is time-consuming. Moreover, the two stabilizing rods can only be used to fix a cylinder or a cuboid, and are obviously not suitable for workpieces with openings or connections at both ends. Content of the Utility Model

[0004] The purpose of the utility model is to provide a radial runout measuring device with simple and convenient operation.

[0005] To achieve the above purpose, the utility model provides a radial runout measuring device, which includes a base, a measuring component and a fixing component. The fixing component and the measuring component are both arranged on the base. The measuring component is slidably arranged on one side of the fixing component. The fixing component includes a fixing seat, a sliding seat, an adjusting rod, an elastic member and an adjusting seat. The fixing seat, the sliding seat and the adjusting seat are arranged in sequence. The sliding seat protrudingly provides a first ejecting post on the side facing the adjusting seat, and the adjusting seat protrudingly provides a second ejecting post on the side facing the sliding seat. The adjusting rod is respectively connected to the sliding seat and the fixing seat. The elastic member is elastically abutted between the sliding seat and the fixing seat. The elastic member applies an elastic force to the sliding seat to move towards the adjusting seat. The adjusting rod can drive the sliding seat to move away from the adjusting seat to adjust the distance between the first ejecting post and the second ejecting post.

[0006] As can be seen from the above solution, by setting the adjusting rod to drive the sliding seat to translate away from the adjusting seat, it is beneficial to quickly increase the distance between the first ejecting post and the second ejecting post, which is convenient for placing or replacing the workpiece. By setting the elastic member, it is convenient for the sliding seat and the first ejecting post to quickly move towards the workpiece. On the one hand, it is beneficial to quickly reduce the distance between the first ejecting post and the second ejecting post to realize quick clamping and fixing of the workpiece. On the other hand, it can accommodate workpieces of various different lengths, avoiding repeated adjustment operations when replacing workpieces of different lengths, and having the advantages of simple and convenient operation.

[0007] A further solution is that the sliding seat is provided with a first mounting hole, one end of the first ejector pin is arranged in the first mounting hole, and the first ejector pin can rotate around its own axis; the adjusting seat is provided with a second mounting hole, one end of the first ejector pin is arranged in the second mounting hole, and the second ejector pin can rotate around its own axis, and the first ejector pin and the second ejector pin are coaxially arranged.

[0008] A further solution is that a manual operation part is arranged on the adjusting seat, and the manual operation part is connected to the second ejector pin to drive the second ejector pin to rotate around its own axis.

[0009] A further solution is that a first guide rail is arranged on the base, both the sliding seat and the adjusting seat are arranged on the first guide rail, the sliding seat can slide back and forth on the first guide rail, and the position of the adjusting seat on the first guide rail is adjustable.

[0010] A further solution is that the adjusting seat is detachably connected to the base through a first locking member.

[0011] A further solution is that the base is provided with a long hole on at least one side of the first guide rail, the length direction of the long hole is parallel to the extending direction of the first guide rail; the adjusting seat is provided with a mounting hole, the mounting hole communicates with the long hole, the first locking member is respectively connected to the long hole and the mounting hole, and the position of the first locking member in the long hole is adjustable.

[0012] A further solution is that a second guide rail is also arranged on the base, the second guide rail is parallel to the first ejector pin, and the measuring assembly is slidably arranged on the second guide rail.

[0013] A further solution is that the measuring assembly includes a display meter and a detection needle extending towards the fixing assembly, and the height position of the detection needle is adjustable.

[0014] A further solution is that the measuring assembly includes a movable seat, a first rod, a second rod and a mounting bracket. The first rod is arranged on the movable seat in the vertical direction. The first end of the second rod is movably connected to the first rod, so that the second end of the second rod can swing up and down. The mounting bracket is movably connected to the second end of the second rod, so that the mounting bracket can swing up and down. The detection needle and the display meter are both arranged on the mounting bracket. Description of the Drawings

[0015] Figure 1 is a structural diagram of a workpiece for measuring the radial circular runout by applying the embodiment of the present invention.

[0016] Figure 2 is a structural diagram of the embodiment of the present invention.

[0017] Figure 3 is a structural diagram during the detection process of the embodiment of the present invention.

[0018] Figure 4 is a top view during the detection process of the embodiment of the present invention.

[0019] Figure 5 is Figure 4 The sectional view taken along line A-A in the middle.

[0020] Figure 6 is the exploded view of the adjusting seat and the base in the embodiment of the present utility model.

[0021] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments. Specific embodiments

[0022] Refer to Figure 1 , the workpiece 1 provided in this embodiment is in a sleeve shape, the two ends of the workpiece 1 are communicated, and openings 11 are provided at both ends thereof. A plurality of convex ribs are provided in the openings 11, and the plurality of convex ribs are arranged along the inner wall of the opening 11, and grooves are formed between adjacent two convex ribs. A cylindrical surface 12 is provided between the two ends of the workpiece 1, and the radial circular runout of the cylindrical surface 12 is to be measured in this embodiment.

[0023] Refer to Figures 2 to 6 , a radial circular runout measuring device provided in this embodiment includes a base 2, a measuring assembly 3 and a fixing assembly 4. A first guide rail 21 and a second guide rail 22 are provided in parallel on the base 2, the fixing assembly 4 is provided on the first guide rail 21, and the measuring assembly 3 is slidably provided on the second guide rail 22 and is located on one side of the fixing assembly 4.

[0024] The fixing assembly 4 includes a fixing seat 41, a sliding seat 42, an adjusting rod 43, an elastic member 44 and an adjusting seat 45. The fixing seat 41, the sliding seat 42 and the adjusting seat 45 are arranged in sequence. Specifically, the fixing seat 41 is provided at the end of the first end of the first guide rail 21, the sliding seat 42 is slidably provided between the two ends of the first guide rail 21, and the adjusting seat 45 is provided on the second end of the first guide rail 21.

[0025] The sliding seat 42 protrudingly provides a first ejector pin 421 on the side facing the adjusting seat 45, and the adjusting seat 45 protrudingly provides a second ejector pin 451 on the side facing the sliding seat 42, and the first ejector pin 421 and the second ejector pin 451 are coaxially arranged. The first ejector pin 421 and the second ejector pin 451 are respectively inserted into the openings 11 at both ends of the workpiece 1 for clamping and fixing the workpiece 1 from both ends.

[0026] Both ends of the adjusting rod 43 are respectively connected to the sliding seat 42 and the fixing seat 41. The adjusting rod 43 can drive the sliding seat 42 to translate away from the adjusting seat 45 to quickly increase the distance between the first ejector pin 421 and the second ejector pin 451, facilitating the placing or removing of the workpiece 1. The adjusting rod 43 can be manually driven. Preferably, the end of the adjusting rod 43 away from the sliding seat 42 protrudes outside the fixing seat 41, facilitating the tester to hold and apply force.

[0027] The elastic member 44 is preferably a compression spring strip. The elastic member 44 is sleeved on the adjusting rod 43, and the elastic member 44 elastically abuts between the sliding seat 42 and the fixed seat 41. In this embodiment, the elastic member 44 applies an elastic force to the sliding seat 42 to move towards the adjusting seat 45. When the external force on the adjusting rod 43 disappears, the sliding seat 42 automatically moves towards the adjusting seat 45, so that the first ejector pin 421 can tightly press against the workpiece 1 towards the direction of the second ejector pin 451, ensuring the clamping stability of the workpiece 1 and preventing the workpiece 1 from accidentally falling off.

[0028] Generally, for workpieces 1 of different lengths, the inspector does not need to specifically adjust for a certain length. He only needs to pull the adjusting rod 43 to drive the sliding seat 42 and the first ejector pin 421 to move away from the second ejector pin 451, then the workpiece 1 can be placed; then, under the elastic force of the elastic member 44 and with the cooperation of the second ejector pin 451, the workpiece 1 is automatically clamped, which has the advantages of good compatibility and convenient operation.

[0029] During the measurement process, the workpiece 1 needs to rotate around its own axis. At this time, the second ejector pin 451 can drive the workpiece 1 to rotate, and during this process, the first ejector pin 421 will rotate synchronously with the workpiece 1. Specifically:

[0030] The sliding seat 42 is provided with a first mounting hole 423, and at least one first bearing 422 is arranged in the first mounting hole 423. One end of the first ejector pin 421 is arranged in the first bearing 422, so that the first ejector pin 421 can rotate relative to the sliding seat 42 around its own axis. The adjusting seat 45 is provided with a second mounting hole 454, and at least one second bearing 452 is arranged in the second mounting hole 454. One end of the first ejector pin 421 is arranged in the second bearing 452, so that the second ejector pin 451 can rotate relative to the adjusting seat 45 around its own axis.

[0031] To facilitate manual operation of the rotation of the second ejector pin 451, a hand-acting part 453 is arranged on the adjusting seat 45 of this embodiment. The hand-acting part 453 protrudes from the side wall of the adjusting seat 45, and the hand-acting part 453 is connected to the second ejector pin 451 to drive the second ejector pin 451 to rotate around its axis. In this embodiment, the hand-acting part 453 and the second ejector pin 451 are coaxially arranged. At this time, the hand-acting part 453 can be a cylinder, a knob, a polygonal column, etc. In other embodiments, the hand-acting part can be connected to the second ejector pin through a gear transmission structure or a belt pulley transmission structure. At this time, the hand-acting part does not need to be coaxially arranged with the second ejector pin.

[0032] To be compatible with workpieces 1 with longer lengths, the position of the adjusting seat 45 on the first guide rail 21 is adjustable. To fix the adjusting seat 45 on the first guide rail 21 when clamping the workpiece 1, the adjusting seat 45 of this embodiment is detachably connected to the base 2 through a first locking member (not shown in the figure). Specifically:

[0033] The base 2 is provided with elongated holes 23 on both sides of the second end of the first guide rail 21. The elongated holes 23 penetrate through the thickness direction of the base 2, and the length direction of the elongated holes 23 is parallel to the extension direction of the first guide rail 21. Third mounting holes 455 are provided on both sides of the adjusting seat 45. The third mounting holes 455 communicate with the elongated holes 23. The first fastening member is respectively connected to the third mounting holes 455 and the elongated holes 23, and the position of the first fastening member in the elongated holes 23 is adjustable to finely adjust the position of the adjusting seat 45. In this embodiment, the third mounting holes 455 are blind holes, and the first fastening member passes through the elongated holes 23 from the bottom of the base 2 and is connected in the third mounting holes 455. When needed, the first fastening member can be loosened from the bottom of the base 2 and the position of the adjusting seat 45 can be finely adjusted. After the second ejector pin 451 is located at a suitable position, the first fastening member is tightened again.

[0034] In other embodiments, the third mounting holes can also be provided as through holes. The first fastening member includes a bolt and a nut. The bolt passes through the third mounting hole and the elongated hole at the same time, and the nut is located at the upper part of the third mounting hole. At this time, the surveyor does not need to reverse the base and can directly use a tool to loosen the nut to finely adjust the adjusting seat.

[0035] The measuring assembly 3 is slidably arranged on the second guide rail 22, and the sliding direction of the measuring assembly 3 is parallel to the first ejector pin 421. The measuring assembly 3 includes a display meter 31 and a detection needle 32 extending towards the fixing assembly 4. During measurement, the detection end of the detection needle 32 is arranged at the position to be measured of the workpiece 1. During the measurement process, the workpiece 1 rotates around its own axis, and at the same time, the measuring assembly 3 slides along the second guide rail 22. The measurement result is displayed through the display meter 31.

[0036] In other embodiments, the measuring assembly 3 can establish a connection with an external device through a communication module. These external devices can be a printer or a terminal.

[0037] In order to be compatible with workpieces 1 of different outer diameters, the height position of the detection needle 32 in this embodiment is adjustable. Specifically:

[0038] The measuring assembly 3 includes a movable seat 33, a first rod 34, a second rod 35 and a mounting bracket 36. The movable seat 33 is slidably connected to the second guide rail 22, and the first rod 34 is arranged on the movable seat 33 in the vertical direction; the first end of the second rod 35 is movably connected to the first rod 34 through a connecting member 37, so that the second end of the second rod 35 can swing up and down around the connecting member 37; the mounting bracket 36 is movably connected to the second end of the second rod 35, and an adjusting knob 38 is arranged on the mounting bracket 36. The mounting bracket 36 is controlled to swing up and down relative to the second rod 35 through the adjusting knob 38; the detection needle 32 and the display meter 31 are both arranged on the mounting bracket 36 and can move together with the second rod 35 and the mounting bracket 36, thereby realizing the height adjustment of the detection needle 32.

[0039] In this embodiment, a second locking member 39 is provided on the movable seat 33. The movable seat 33 is fixedly connected to the second guide rail 22 through the second locking member 39 to fix the measuring assembly 3 at a preset position on the second guide rail 22, facilitating the movement of the radial runout measuring device and preventing the measuring assembly 3 from swaying back and forth along the second guide rail 22.

[0040] In summary, by providing the adjusting rod 43 to drive the sliding seat 42 to translate away from the adjusting seat 45, the present invention is conducive to quickly increasing the distance between the first ejector pin 421 and the second ejector pin 451, facilitating the placement or replacement of the workpiece 1; by providing the elastic member 44, it is convenient for the sliding seat 42 and the first ejector pin 421 to quickly move towards the workpiece 1. On the one hand, it is conducive to quickly reducing the distance between the first ejector pin 421 and the second ejector pin 451 to achieve quick clamping of the workpiece 1. On the other hand, it can accommodate workpieces 1 of various different lengths, avoiding the need for repeated adjustment operations when replacing workpieces 1 of different lengths, and having the advantages of simple and convenient operation.

[0041] Finally, it should be emphasized that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A radial runout measuring device, comprising a base, a measuring assembly and a fixing assembly, wherein the fixing assembly and the measuring assembly are both arranged on the base, and the measuring assembly is slidably arranged on one side of the fixing assembly, characterized in that: The fixing assembly includes a fixing seat, a sliding seat, an adjusting rod, an elastic member and an adjusting seat, the fixing seat, the sliding seat and the adjusting seat are arranged in sequence, the sliding seat is protrudingly provided with a first top column on a side facing the adjusting seat, the adjusting seat is protrudingly provided with a second top column on a side facing the sliding seat, the adjusting rod is respectively connected to the sliding seat and the fixing seat, the elastic member elastically abuts between the sliding seat and the fixing seat, the elastic member applies an elastic force to the sliding seat to move toward the adjusting seat, and the adjusting rod can drive the sliding seat to move back to the adjusting seat to adjust the distance between the first top column and the second top column.

2. The radial runout measuring device according to claim 1, characterized in that: The sliding seat is provided with a first mounting hole, one end of the first top column is arranged in the first mounting hole, and the first top column can rotate around its own axis; The adjustment seat is provided with a second mounting hole, one end of the first top column is arranged in the second mounting hole, and the second top column can rotate around its own axis, and the first top column and the second top column are coaxially arranged.

3. The radial runout measuring device according to claim 2, characterized in that: The adjustment seat is provided with a hand action part, and the hand action part is connected with the second top column to drive the second top column to rotate around its own axis.

4. The radial runout measuring device according to claim 1, characterized in that: The base is provided with a first guide rail, the sliding seat and the adjusting seat are both provided on the first guide rail, the sliding seat can slide back and forth on the first guide rail, and the position of the adjusting seat on the first guide rail is adjustable.

5. The radial runout measuring device according to claim 4, characterized in that: The adjustment seat is detachably connected to the base via a first locking piece.

6. The radial runout measuring device according to claim 5, characterized in that: The base is provided with a long hole on at least one side of the first guide rail, and the length direction of the long hole is parallel to the extension direction of the first guide rail; The adjustment seat is provided with a mounting hole, the mounting hole is communicated with the long hole, the first locking piece is respectively connected with the long hole and the mounting hole, and the position of the first locking piece in the long hole is adjustable.

7. The radial runout measuring device according to any one of claims 1 to 6, characterized in that: The base is also provided with a second guide rail, the second guide rail is parallel to the first top column, and the measuring component is slidably arranged on the second guide rail.

8. The radial runout measuring device according to any one of claims 1 to 6, characterized in that: The measuring component comprises a display meter and a detection needle extending toward the fixing component, and the height position of the detection needle is adjustable.

9. The radial runout measuring device according to claim 8, characterized in that: The measuring assembly includes a movable seat, a first rod, a second rod and a mounting frame, the first rod is arranged on the movable seat in a vertical direction, the first end of the second rod is movably connected to the first rod so that the second end of the second rod can swing up and down, the mounting frame is movably connected to the second end of the second rod so that the mounting frame can swing up and down, and the detection needle and the display meter are both arranged on the mounting frame.

Images