Detection device for grinding outer circle spiral line

Abstract

The utility model discloses a detection device for grinding an excircle spiral line, which relates to the technical field of shaft piece quality inspection equipment and comprises a test piece and a weight, one end of the weight is provided with a suspension wire, the suspension wire is arranged on the test piece, and when the test piece rotates, if the surface of the test piece is provided with a spiral line, the suspension wire and the weight synchronously displace. The rotary tip can drive the test piece to rotate, the position of the movable tip can be adjusted, the rotary tip and the movable tip are in butt joint with the two ends of the test piece respectively, a movable eyepiece is arranged above the test piece, and the eyepiece right faces the position of the suspension wire. On the premise that the stability of the test piece is maintained, the test piece is controlled to rotate, the weight, the suspension wire and the test piece are combined, whether a spiral line exists in workpiece machining can be tested by judging the moving state of the suspension wire and the weight, then whether the sealing performance of the test piece is affected or not is judged, and the device has the advantages of being simple in structure and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft quality inspection equipment, in particular to a detection device for grinding external circular spirals. Background Art

[0002] During the grinding process, the grinding wheel moves left and right while the shaft rotates, creating a spiral grinding track on the shaft's outer diameter. Furthermore, as the grinding wheel wears during the grinding process, using a diamond pen to trim the wheel can also create a spiral grinding track on the wheel surface. Consequently, the grinding wheel also creates a spiral grinding track (helix) when grinding the shaft. If the helix is ​​located near the oil seal of a shaft, the centrifugal force of the shaft's rotation can cause fluid to drain from the seal, causing leakage.

[0003] Existing inspection devices for shaft parts usually use methods such as scribing inspection, rotating machine tool hanging wire inspection, or optical observation to perform inspection operations on shaft parts. However, most of these inspection operations can only detect the static error of the rotating shaft and cannot accurately detect whether there are spiral lines on the surface of the rotating shaft caused by grinding operations. In addition, the inspection work takes a long time, has low inspection efficiency, and is prone to misjudgment. Utility Model Content

[0004] In response to the above problems, the present application provides a detection device for grinding external circular helical lines.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a detection device for grinding external cylindrical spiral lines, comprising a test piece and a weight, wherein a suspension wire is provided at one end of the weight, and the suspension wire is provided on the test piece. When the test piece rotates, if there is a spiral line on its surface, the suspension wire and the weight will move synchronously.

[0006] It also includes a rotating top that can drive the test piece to rotate and a movable top that can adjust the position. The rotating top and the movable top are respectively connected to the two ends of the test piece. A movable eyepiece is provided above the test piece, and the eyepiece is facing the position of the hanging line.

[0007] Furthermore, a tailstock is provided on the side of the test piece facing the moving top, and a through hole is opened on the tailstock to accommodate the passing of the moving top, and a threaded locking handle 2 is provided on the tailstock to limit the sliding of the moving top. When the moving top is in a sliding state, the distance between the rotating top and the moving top can be adjusted.

[0008] A base is provided below the tailstock, a guide rail for the tailstock to slide is provided on the base, and an adjustable threaded locking handle is provided on the tailstock.

[0009] Furthermore, a rotating center bracket is provided on the side of the test piece facing the rotating center, a bearing is provided on the rotating center, the bearing is connected to the rotating center bracket through a locking nut, and the rotating center bracket is connected to the base through a fixing bolt.

[0010] Furthermore, a servo motor for controlling the rotation of the rotating center is provided at one end of the rotating center away from the test piece, and the servo motor is connected to the rotating center bracket via a mounting bolt.

[0011] Furthermore, the eyepiece is provided with an eyepiece bracket, and the eyepiece bracket is arranged on a guide rail.

[0012] Furthermore, a plurality of adjustment pads are provided at the bottom end of the base.

[0013] In summary, the technical effects and advantages of the utility model are:

[0014] The utility model controls the rotation of the test piece while maintaining the stability of the test piece, utilizes the combination of weights, hanging wires and the test piece, and judges the movement state of the hanging wires and weights to test whether a spiral line exists in the workpiece processing, and further judges whether the sealing of the test piece is affected. The utility model has the advantages of simple structure and easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a front view structural diagram of the utility model.

[0017] Figure 2 This is a schematic diagram of the connection between the thread locking handle 1, the thread locking handle 2 and the guide rail of the utility model.

[0018] Figure 3 This is a schematic diagram of the connection structure between the tailstock and the mobile center in the utility model.

[0019] Figure 4 This is a schematic diagram of the connection between the eyepiece, eyepiece bracket and base of the utility model.

[0020] Figure 5 This is a schematic diagram of the connection structure between the test piece and the weight of the utility model.

[0021] Figure 6 This is a schematic diagram of the connection between the servo motor, rotating center bracket and base of the utility model.

[0022] In the figure: 1. Base; 2. Thread locking handle 1; 3. Moving center; 4. Tail stock; 5. Thread locking handle 2; 6. Test piece; 7. Eyepiece; 8. Eyepiece bracket; 9. Hanging wire; 10. Rotating center; 11. Bearing; 12. Servo motor; 13. Mounting bolt; 14. Locking nut; 15. Adjusting pad; 16. Rotating center bracket; 17. Fixing bolt; 18. Weight; 19. Guide rail. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example: Reference Figure 1-6 The device shown is a detection device for grinding external cylindrical spirals, comprising a test piece 6 and a weight 18. A suspension wire 9 is provided at one end of the weight 18, and the suspension wire 9 is provided on the test piece 6. When the test piece 6 rotates, if there is a spiral on its surface, the suspension wire 9 and the weight 18 will move synchronously.

[0025] It also includes a rotating top 10 that can drive the test piece 6 to rotate and a movable top 3 with an adjustable position. The rotating top 10 and the movable top 3 are respectively connected to the two ends of the test piece 6. A movable eyepiece 7 is provided above the test piece 6. The eyepiece 7 is facing the position of the suspension line 9, and can magnify and observe whether the suspension line 9 moves, thereby improving the accuracy of the detection work.

[0026] A tailstock 4 is provided on the side of the test piece 6 facing the movable tip 3. This tailstock 4 has a through-hole for accommodating the movable tip 3. It also features a threaded locking handle 5 that restricts the movement of the movable tip 3. When the movable tip 3 is in the sliding state, the distance between the rotating tip 10 and the movable tip 3 can be adjusted. Once the movable tip 3 has slid to the designated position, the rotating tip 10 can be used to smoothly tighten the test piece 6, maintaining its stability.

[0027] A base 1 is located below the tailstock 4. The base 1 is equipped with a guide rail 19 on which the tailstock 4 slides. The tailstock 4 is also equipped with an adjustable threaded locking handle 2. The tailstock 4 can slide left or right on the guide rail 19 to facilitate installation of the test piece 6. When the tailstock 4 is moved to a desired position, operating the threaded locking handle 2 limits the sliding of the tailstock 4, maintaining the stability of the connection between the tailstock 4 and the guide rail 19.

[0028] A rotating center support 16 is provided on the side of the test piece 6 facing the rotating center 10. A bearing 11 is provided on the rotating center 10. The bearing 11 is connected to the rotating center support 16 via a lock nut 14. The rotating center support 16 is connected to the base 1 via a fixing bolt 17. The provision of the rotating center support 16 allows the rotating center 10 and the movable center 3 to be at the same height, ensuring the stability of the rotating center 10. Moreover, the rotating center 10 can smoothly drive the test piece 6 to rotate on the rotating center support 16.

[0029] Specifically, a servo motor 12 is provided at one end of the rotating center 10 away from the test piece 6 to control its rotation. The servo motor 12 is connected to the rotating center bracket 16 via a mounting bolt 13. The servo motor 12 runs to provide power to the rotating center 10, thereby achieving the purpose of smoothly driving the test piece 6 to rotate.

[0030] When test piece 6 rotates, if there are grinding spirals on its surface, the rotational force will cause the grinding spirals to rotate, and under the guidance of the spirals, the suspension wire 9 will move. To facilitate observation of the movement of the suspension wire 9, an eyepiece holder 8 is provided on the eyepiece 7, which is mounted on the guide rail 19. The eyepiece holder 8 can carry the eyepiece 7 and move left or right within the guide rail 19 until it reaches the position of the suspension wire 9. The operator can observe the position of the suspension wire 9 through the eyepiece 7, and thus clearly observe the distance the suspension wire 9 has moved.

[0031] The bottom end of the base 1 is provided with a plurality of adjustment pads 15. The adjustment pads 15 can be used to adjust the horizontal position of the base 1 so that the base 1 is in a horizontal state to ensure the accuracy of the test results.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A detection device for grinding an external circular helix, characterized in that: The invention comprises a test piece (6) and a weight (18), wherein a suspension wire (9) is provided at one end of the weight (18), and the suspension wire (9) is provided on the test piece (6). When the test piece (6) rotates, if a spiral line is formed on its surface, the suspension wire (9) and the weight (18) will be displaced synchronously. The invention also comprises a rotating top (10) capable of driving the test piece (6) to rotate and a movable top (3) capable of adjusting the position. The rotating top (10) and the movable top (3) are respectively connected to two ends of the test piece (6). A movable eyepiece (7) is provided above the test piece (6), and the eyepiece (7) is directly opposite to the position of the suspension line (9).

2. The detection device for grinding an external circular helix according to claim 1, characterized in that: A tailstock (4) is provided on the side of the test piece (6) facing the movable top (3), and a through hole is provided on the tailstock (4) for accommodating the movable top (3) to pass through, and a threaded locking handle (5) is provided on the tailstock (4) for limiting the sliding of the movable top (3). When the movable top (3) is in a sliding state, the distance between the rotating top (10) and the movable top (3) can be adjusted; A base (1) is provided below the tailstock (4), a guide rail (19) for the tailstock (4) to slide is provided on the base (1), and an adjustable threaded locking handle (2) is provided on the tailstock (4).

3. The detection device for grinding an external circular helix according to claim 2, characterized in that: A rotating top bracket (16) is provided on the side of the test piece (6) facing the rotating top (10), a bearing (11) is provided on the rotating top (10), the bearing (11) is connected to the rotating top bracket (16) through a locking nut (14), and the rotating top bracket (16) is connected to the base (1) through a fixing bolt (17).

4. The detection device for grinding an external circular helix according to claim 3, characterized in that: A servo motor (12) for controlling the rotation of the rotating top (10) is provided at one end away from the test piece (6), and the servo motor (12) is connected to the rotating top bracket (16) via a mounting bolt (13).

5. The detection device for grinding an external circular helix according to claim 2, characterized in that: An eyepiece bracket (8) is provided on the eyepiece (7), and the eyepiece bracket (8) is arranged on a guide rail (19).

6. The detection device for grinding an external circular helix according to claim 2, characterized in that: A plurality of adjustment pads (15) are provided at the bottom end of the base (1).

Images