Hard car vertical feeding bearing hole precision detection device

Abstract

The utility model discloses a precision detection device for a vertical feeding bearing hole of a hard car, which comprises a body, and the length L of the body is two times larger than the width of a standard detection sleeve. The body comprises a shaft body I, a shaft body II and a plate body, the plate body is a circular plate body, the shaft body II and the plate body are both circular shaft bodies, the plate body is fixedly connected between the shaft body I and the shaft body II, and the center line of the shaft body I, the center line of the shaft body II and the center line of the plate body are all located on the same straight line; the plate body protrudes out of the shaft body I and the shaft body II, the diameter of the shaft body I is larger than that of the shaft body II, an inner hole of the shaft body I, an inner hole of the shaft body II and an inner hole of the plate body are communicated, and the diameters of the three inner holes are phi d; a plurality of uniformly spaced through holes are formed in the edge of the outer circular surface of the plate body, and the diameter of each through hole is phi d1; the diameter of the end surface of the shaft body I is phi D, and the end surface of the shaft body I is a surface A; the end surface of the plate body close to one side of the shaft body I is a surface B; according to the utility model, the purpose of detecting the parallelism of the bearing hole for vertical lifting feeding of the hard car rotary sliding seat and the axis of the Z axis is realized.

Description

Technical Field

[0001] This utility model relates to a device for detecting the accuracy of bearing holes in vertical feed machining, belonging to the field of mechanical technology. Background Technology

[0002] The parallelism between the bearing bore of the vertical lifting feed of the rotary slide of a hard turning machine and the Z-axis of the machine tool is a critical accuracy indicator. It can be inspected using a coordinate measuring machine (CMM). However, with the increase in the production volume of hard turning machines, the CMM cannot handle the production capacity. If conventional inspection sleeves and bars are used to inspect this bearing bore, there are two problems. One problem is that inspection sleeves are only suitable for inspecting radial bearing bores, not end bearing bores. However, the vertical feed of this rotary slide of a hard turning machine uses a combined bearing consisting of radial and end bearings, meaning that both the inner bore and the end face of the inner bore have accuracy requirements. The other problem is that conventional inspection sleeves must be used in conjunction with inspection bars; otherwise, the error in simulating the axis will be large. However, there is no space to place two inspection sleeves on the part being inspected. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a bearing hole accuracy detection device for vertical feed of a hard-wheeled turning machine. This device achieves the purpose of detecting the parallelism between the bearing hole of the vertical lifting feed of the turning slide of the hard-wheeled turning machine and the Z-axis.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a precision detection device for vertical feed bearing holes of a hard turning machine, comprising a body, wherein the body further comprises a shaft I, a shaft II, and a plate. The plate is a circular plate, and both shaft II and the plate are circular shafts. The plate is fixedly connected between shaft I and shaft II, and the plate protrudes from shaft I and shaft II. The diameter of shaft I is larger than the diameter of shaft II. The inner holes of shaft I, shaft II, and the plate are all connected, and the diameter of the three inner holes is φd.

[0005] The outer circular surface of the plate has several evenly spaced through holes with a diameter of φd1; the diameter of the end face of shaft I is φD, and the end face of shaft I is surface A; the end face of the plate closest to shaft I is surface B.

[0006] Furthermore, the length L of the body is greater than twice the width of the standard inspection sleeve.

[0007] Furthermore, the centerline of shaft I, the centerline of shaft II, and the centerline of the plate are all located on the same straight line.

[0008] The beneficial effects of this utility model are: this utility model efficiently and economically replaces the use of three-coordinate measuring machine to achieve the purpose of detecting the parallelism between the bearing hole and the Z-axis of the vertical lifting feed of the hard-car rotary slide. Attached Figure Description

[0009] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Numbering on the map:

[0012] 1. Body, 101. Shaft I, 102. Shaft II, 103. Plate, 2. Surface A, 3. Surface B, 4. Through hole. Detailed Implementation

[0013] like Figure 1 As shown, a precision testing device for vertical feed bearing holes in hard turning machines includes a body 1, the length L of which is greater than twice the width of a standard inspection sleeve; the body 1 further includes a shaft I 101, a shaft II 102, and a plate 103, the plate 103 being a circular plate, and both shaft II 102 and plate 103 being circular shafts, the plate 103 being fixedly connected between shaft I 101 and shaft II 102, the centerlines of shaft I 101, shaft II 102, and plate 103 being located on the same straight line; plate 103 protrudes from shaft I 101 and shaft II 102, the diameter of shaft I 101 is greater than the diameter of shaft II 102, the inner holes of shaft I 101, shaft II 102, and plate 103 are all interconnected, and the diameter of the three inner holes is φd.

[0014] The outer circular surface of the plate 103 is provided with several evenly spaced through holes 4, the diameter of which is φd1; the diameter of the end face of the shaft I 101 is φD, the end face of the shaft I 101 is surface A 2; the end face of the plate 103 on the side closer to the shaft I 101 is surface B 3.

[0015] During use, this device requires ensuring the coaxiality of the outer circle φD and the inner hole φd, as well as the perpendicularity accuracy of surface A2 and the inner hole φd. The length L of the device body 1 is greater than twice the width of the standard inspection sleeve. During use, the outer circle φD of this device mates with the inner hole of the bearing countersunk hole of the vertical feed of the rotary slide (i.e., the inner hole that mates with the radial bearing in the combined bearing). Surface A2 of this device is tightly against the end face of the bearing countersunk hole of the vertical feed of the rotary slide (i.e., the end face that mates with the end face bearing in the combined bearing). Through the n-φd1 hole, standard bolts are used to tighten this device onto the rotary slide to the specified torque. Note that there is a gap between surface B3 and the rotary slide to prevent over-positioning, ensuring that surface A2 can be tightly against the bearing. A standard inspection bar is inserted into the inner hole φd of this device. This allows the parallelism between the standard inspection bar and the Z-axis to be checked by using a dial indicator, thus checking the parallelism between the bearing hole of the vertical feed of the rotary slide and the Z-axis.

Claims

1. A device for detecting the accuracy of bearing holes in vertical feed machining, characterized in that: The system includes a body (1), which in turn includes shaft I (101), shaft II (102), and plate (103). Plate (103) is a circular plate, shaft II (102) and plate (103) are both circular shafts. Plate (103) is fixedly connected between shaft I (101) and shaft II (102). Plate (103) protrudes from shaft I (101) and shaft II (102). The diameter of shaft I (101) is larger than the diameter of shaft II (102). The inner holes of shaft I (101), shaft II (102) and plate (103) are all connected. The diameter of the three inner holes is φd. The outer circular surface of the plate (103) is provided with several evenly spaced through holes (4), the diameter of which is φd1; the diameter of the end face of the shaft I (101) is φD, the end face of the shaft I (101) is surface A (2); the end face of the plate (103) near the shaft I (101) is surface B (3).

2. The device for detecting the accuracy of a bearing bore in a hard-turning vertical feed according to claim 1, characterized in that: The length L of the body (1) is greater than twice the width of the standard inspection sleeve.

3. The device for detecting the accuracy of a bearing bore in a hard-turning vertical feed according to claim 1, characterized in that: The centerline of shaft I (101), the centerline of shaft II (102), and the centerline of plate (103) are all located on the same straight line.

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