Center hole depth rapid detection device

Abstract

The utility model provides a center hole depth rapid detection device comprising a mounting seat, a through hole is vertically arranged in the center of the mounting seat, a moving shaft is movably arranged in the through hole, the mounting seat is also provided with a limiting assembly, and the limiting assembly is used for limiting the axial movement of the moving shaft. A plurality of positioning supports are further arranged on the mounting base, all the positioning supports are distributed in a horizontally diverging mode with the axis of the moving shaft as the center, a positioning nail is arranged at the end, away from the mounting base, of each positioning support, all the positioning nails are vertically arranged, the upper ends of the positioning nails are connected with the positioning supports, and the lower ends of the positioning nails are connected with the positioning supports. The lower end of the positioning nail is used for being in contact with the datum plane of a product to be measured, any one of the positioning supports is provided with a dial indicator through a fixing seat, the lower end of the moving shaft is provided with a measuring ball, and the upper end of the moving shaft is used for triggering a pointer of the dial indicator to rotate. The installation seat can be arranged above the central hole of a to-be-detected product, each positioning nail is ensured to be in contact with the reference surface of the to-be-detected product, the numerical value of the dial indicator is read, the depth of the central hole is detected, the depth size of the central hole can be rapidly detected, the placing direction of a workpiece is not required, a detection platform does not need to be configured, the requirement for a detector is low, and the detection efficiency is high. The detection efficiency is high.

Description

Technical Field

[0001] The utility model relates to the field of detection equipment, in particular to a device for quickly detecting the depth of a central hole. Background Art

[0002] When machining steering knuckle products, a center hole must be machined first. This hole is then used for subsequent machining processes such as turning and grinding the spindle. The depth of the center hole is a critical dimension, impacting the accuracy of subsequent machining processes. The center hole depth is typically marked and measured using a standard ball. The traditional method for measuring this depth is to place the center hole vertically upward, use an auxiliary measuring ball, and use a height gauge to measure the distance from the ball tip to the reference surface. This method suffers from low efficiency and large errors, requiring the configuration of a testing platform and high requirements for testing personnel, requiring specialized inspections. Utility Model Content

[0003] In view of the shortcomings of the existing technology mentioned above, the purpose of the present utility model is to provide a center hole depth rapid detection device to solve the technical problems in the existing technology such as low detection efficiency, large detection error, the need to configure a detection platform, high requirements for detection personnel, and the need to be completed by specialized inspection personnel.

[0004] To achieve the above-mentioned and other related purposes, the present invention provides a device for quickly detecting the depth of a central hole, comprising:

[0005] A mounting seat, wherein a through hole is vertically provided in the center of the mounting seat, a movable shaft is movably provided in the through hole, and a limiting assembly is further provided on the mounting seat, wherein the limiting assembly is used to limit the axial movement of the movable shaft;

[0006] The mounting seat is further provided with a plurality of positioning brackets, all of which are horizontally divergently distributed with the axis of the movable shaft as the center, and each positioning bracket is provided with a positioning pin at the end away from the mounting seat, all of which are arranged vertically, with the upper end of the positioning pin connected to the positioning bracket and the lower end of the positioning pin used to contact the reference surface of the product to be tested;

[0007] A dial indicator is provided on any one of the positioning brackets via a fixing seat, a measuring ball is provided at the lower end of the movable shaft, and the upper end of the movable shaft is used to trigger the rotation of the pointer of the dial indicator.

[0008] The advantage of adopting the above technical solution is that the mounting seat can be set above the center hole of the product to be tested, ensuring that each positioning pin is in contact with the reference surface of the product to be tested, reading the value of the dial indicator, and completing the detection of the center hole depth. The center hole depth dimension can be quickly detected, does not require the direction of the workpiece placement, does not need to configure the detection platform, has low requirements for the detector, can be detected by the operator himself, and has high detection efficiency.

[0009] Optionally, the limiting assembly includes a fixed sleeve, a cover plate, and a compression spring, wherein the fixed sleeve is arranged at the center of the upper surface of the mounting seat, the axis of the fixed sleeve coincides with the axis of the through hole, the outer ring edge of the cover plate is connected to the upper end edge of the fixed sleeve, and the upper end of the movable shaft extends from the center of the cover plate;

[0010] An adjustment gap is provided between the movable shaft and the inner wall of the fixed sleeve. The compression spring is sleeved on the movable shaft and located in the adjustment gap. A limiting ring is also fixedly sleeved on the movable shaft. One end of the compression spring abuts against the limiting ring, and the other end of the compression spring abuts against the cover plate.

[0011] Optionally, the measuring ball is connected to the movable shaft by a threaded connection.

[0012] Optionally, the positioning pin is connected to the corresponding positioning bracket by threaded connection.

[0013] Optionally, an annular mounting groove is further provided at the center of the upper end surface of the mounting seat, the annular mounting groove is arranged around the through hole, and the lower part of the fixing sleeve is inserted into the annular mounting groove.

[0014] Optionally, a fixing ring is further fixedly sleeved on the outer wall of the fixing sleeve, and the fixing ring is fixedly connected to the mounting seat by bolts.

[0015] Optionally, the fixing sleeve, the cover plate and the fixing ring are integrally formed.

[0016] Optionally, the detection device also includes a calibration seat, a center hole is provided in the center of the upper surface of the calibration seat, the depth of the center hole matches the depth of the center hole of the product to be detected, and the measuring ball and the positioning pin are used to be placed on the upper surface of the calibration seat for calibration.

[0017] As described above, the utility model is a device for quickly detecting the depth of a center hole, which has the following beneficial effects: the mounting seat can be set above the center hole of the product to be tested, ensuring that each positioning pin is in contact with the reference surface of the product to be tested, and the value of the dial indicator is read to complete the detection of the depth of the center hole. The center hole depth dimension can be quickly detected, the workpiece placement direction is not required, and the detection platform does not need to be configured. The requirements for the detector are low, and the operator can detect it by himself, and the detection efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Shown is a schematic structural diagram of an embodiment of the present utility model;

[0019] Figure 2 It shows a schematic cross-sectional structure diagram of an embodiment of the present invention.

[0020] Part Number Description

[0021] 1 Mounting Base

[0022] 101 positioning bracket

[0023] 102 positioning pins

[0024] 2 Moving axes

[0025] 3 Limiting components

[0026] 301 Compression Spring

[0027] 4 Measuring balls

[0028] 5. Dial indicator

[0029] 6 Calibration stand DETAILED DESCRIPTION

[0030] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention.

[0031] See also Figures 1 to 2 . It should be noted that the illustrations provided in this embodiment only illustrate the basic concept of the present invention in a schematic manner. The illustrations only show the components related to the present invention rather than being drawn according to the number, shape and size of the components during actual implementation. During implementation, the type, quantity and proportion of each component can be changed at will, and the component layout may also be more complex. The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read. They are not used to limit the conditions under which the present invention can be implemented, so they have no technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should also be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0032] See Figures 1 to 2 As shown, the utility model provides a device for quickly detecting the depth of a center hole, comprising:

[0033] A mounting base 1 is provided with a through hole vertically in the center of the mounting base 1, a movable shaft 2 is movably provided in the through hole, and a limiting component 3 is further provided on the mounting base 1, the limiting component 3 is used to limit the axial movement of the movable shaft 2;

[0034] In one embodiment, the mounting base 1 is further provided with three positioning brackets 101, each of the positioning brackets 101 is horizontally divergently distributed with the axis of the movable shaft 2 as the center, and each of the positioning brackets 101 is provided with a positioning pin 102 at the end away from the mounting base 1, all of the positioning pins 102 are vertically arranged, the upper end of the positioning pin 102 is connected to the positioning bracket 101, and the lower end of the positioning pin 102 is used to contact the reference surface of the product to be tested;

[0035] A measuring ball 4 is provided at the lower end of the movable shaft 2 , and a dial indicator 5 is provided on any one of the positioning brackets 101 via a fixing seat. The upper end of the movable shaft 2 is used to trigger the pointer of the dial indicator 5 to rotate.

[0036] It should also be noted that the mounting base 1 and the plurality of positioning brackets 101 are integrally formed.

[0037] It is further explained that the lengths of the positioning pins 102 remain consistent.

[0038] Exemplarily, the limiting assembly 3 includes a fixed sleeve, a cover plate, and a compression spring 301. The fixed sleeve is arranged at the center of the upper surface of the mounting base 1. The axis of the fixed sleeve coincides with the axis of the through hole. The outer ring edge of the cover plate is connected to the upper end edge of the fixed sleeve. The upper end of the movable shaft 2 extends from the center of the cover plate.

[0039] An adjustment gap is provided between the movable shaft 2 and the inner wall of the fixed sleeve. The compression spring 301 is sleeved on the movable shaft 2 and is located in the adjustment gap. A limiting ring is also fixed on the movable shaft 2. One end of the compression spring 301 abuts against the limiting ring, and the other end of the compression spring 301 abuts against the cover plate.

[0040] It should also be noted that the purpose of setting the compression spring 303 is to ensure that the measuring ball 4 is in close contact with the measured center hole.

[0041] Exemplarily, the measuring ball is connected to the movable shaft 2 by a threaded connection.

[0042] Exemplarily, the positioning pin 102 is connected to the corresponding positioning bracket 101 by threading.

[0043] Exemplarily, an annular mounting groove is further provided at the center of the upper end surface of the mounting seat 1 , the annular mounting groove is arranged around the through hole, and the lower portion of the fixing sleeve is inserted into the annular mounting groove.

[0044] Exemplarily, a fixing ring is further fixedly sleeved on the outer wall of the fixing sleeve, and the fixing ring is fixedly connected to the mounting seat 1 by bolts.

[0045] It should also be noted that the purpose of providing the fixing ring is to provide an installation position for the fixing sleeve.

[0046] It is further explained that the outer wall of the fixing sleeve may be provided with a thread, and the fixing sleeve may be threadedly connected to the corresponding annular mounting groove.

[0047] Exemplarily, the fixing sleeve, the cover plate and the fixing ring are integrally formed.

[0048] It should also be noted that the fixing sleeve, the cover plate and the fixing ring are integrally formed to improve structural strength.

[0049] Exemplarily, the end of the positioning pin 102 away from the positioning bracket 101 is conical.

[0050] It should also be noted that the purpose of setting the lower end of the positioning pin 102 to be conical is to reduce the contact area between the positioning pin 102 and the reference surface of the product to be measured, thereby ensuring the accuracy of the measurement result.

[0051] Exemplarily, the detection device also includes a calibration seat 6, a center hole is provided in the center of the upper surface of the calibration seat 6, the depth of the center hole matches the depth of the center hole of the product to be detected, the measuring ball 4 and the positioning pin 102 are used to be placed on the upper surface of the calibration seat 6 for calibration.

[0052] It should also be noted that the calibration base 1 is used for calibrating the test device. Multiple calibration bases 1 can be used with the same test device to test center holes of varying depths. The center hole depth of the calibration base 1 should correspond to the theoretical center hole depth of the product being tested. This serves as the calibration base's reference surface, the plane in contact with the multiple positioning pins 102. The distance from the calibration base's reference surface to the apex of the standard sphere is consistent with the markings on the product drawing being tested.

[0053] To sum up, by adopting a center hole depth rapid detection device of the present invention, the mounting seat can be set above the center hole of the product to be tested, ensuring that each positioning pin 102 is in contact with the reference surface of the product to be tested, and reading the value of the dial indicator 5 to complete the detection of the center hole depth. The center hole depth dimension can be quickly detected, the workpiece placement direction is not required, and the detection platform does not need to be configured. The requirements for the tester are relatively low, and the operator can detect it by himself, and the detection efficiency is high.

[0054] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed in the present invention are intended to be covered by the claims of the present invention.

Claims

1. A device for quickly detecting the depth of a central hole, characterized in that: include: A mounting seat (1), wherein a through hole is vertically provided at the center of the mounting seat (1), a movable shaft (2) is movably provided in the through hole, and a limiting assembly (3) is provided on the mounting seat (1), wherein the limiting assembly (3) is used to limit the axial movement of the movable shaft (2); The mounting seat (1) is further provided with a plurality of positioning brackets (101), all of the positioning brackets (101) are horizontally divergently distributed with the axis of the movable shaft (2) as the center, and each of the positioning brackets (101) is provided with a positioning pin (102) at the end away from the mounting seat (1), and all of the positioning pins (102) are vertically arranged, the upper end of the positioning pin (102) is connected to the positioning bracket (101), and the lower end of the positioning pin (102) is used to contact the reference surface of the product to be tested; A measuring ball (4) is provided at the lower end of the movable shaft (2), a dial indicator (5) is provided on any one of the positioning brackets (101) via a fixed seat, and the upper end of the movable shaft (2) is used to trigger the rotation of the pointer of the dial indicator (5).

2. The device for rapid detection of center hole depth according to claim 1, characterized in that: The limiting assembly (3) comprises a fixed sleeve, a cover plate and a compression spring (301); the fixed sleeve is arranged at the center of the upper surface of the mounting seat (1); the axis of the fixed sleeve coincides with the axis of the through hole; the outer ring edge of the cover plate is connected to the upper end edge of the fixed sleeve; and the upper end of the movable shaft (2) extends from the center of the cover plate; An adjustment gap is provided between the movable shaft (2) and the inner wall of the fixed sleeve. The compression spring (301) is sleeved on the movable shaft (2) and is located in the adjustment gap. A limiting ring is also fixedly sleeved on the movable shaft (2). One end of the compression spring (301) abuts against the limiting ring, and the other end of the compression spring (301) abuts against the cover plate.

3. The device for rapid detection of center hole depth according to claim 2, characterized in that: The measuring ball and the moving shaft (2) are connected by a thread.

4. The device for rapid detection of center hole depth according to claim 3, characterized in that: The positioning pin (102) is connected to the corresponding positioning bracket (101) by threaded connection.

5. The device for rapid detection of center hole depth according to claim 4, characterized in that: An annular mounting groove is further provided at the center of the upper end surface of the mounting seat (1), the annular mounting groove is arranged around the through hole, and the lower part of the fixing sleeve is inserted into the annular mounting groove.

6. The device for rapid detection of center hole depth according to claim 5, characterized in that: A fixing ring is also fixedly sleeved on the outer wall of the fixing sleeve, and the fixing ring is fixedly connected to the mounting seat (1) via bolts.

7. The device for rapid detection of center hole depth according to claim 6, characterized in that: The fixing sleeve, the cover plate and the fixing ring are integrally formed.

8. The device for rapid detection of center hole depth according to claim 7, characterized in that: The end of the positioning pin (102) away from the positioning bracket (101) is conical.

9. The device for rapid detection of center hole depth according to claim 8, characterized in that: The detection device also includes a calibration seat (6), a center hole is provided at the center of the upper surface of the calibration seat (6), the depth of the center hole matches the depth of the center hole of the product to be detected, and the measuring ball (4) and the positioning pin (102) are used to be placed on the upper surface of the calibration seat (6) for calibration.

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