Gauge for measuring hole pitch of guide arm
By designing the X- and Y-direction guide rails, the distance between the center pin hole and the tail hole of the guide arm is directly measured using the reference pin and digital grating, which solves the time-consuming and laborious problem of 3D scanner measurement, and achieves a simple and efficient measurement effect.
Patent Information
- Application Number
- CN202422609042.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-10-29
AI Technical Summary
The prior art is time-consuming and laborious to measure the distance between the central pin hole and the tail hole of the guide arm through a 3D scanner, and requires operation in the laboratory, which is costly.
A detector including X-direction and Y-direction guide rails is designed, and the central pin hole and the tail hole are inserted through the first and second reference pins, and the distance between the central pin hole of the guide arm and the tail hole is directly measured by combining the digital display grating and the measuring pin.
It realizes rapid and simple measurement of the distance between the central pin hole and the tail hole in a non-laboratory environment, reducing operating costs and time.
Smart Images
Figure CN223228926U_ABST
Abstract
Description
Technical field:
[0001] The utility model relates to the field of inspection tools, in particular to an inspection tool for measuring the distances between a central pin hole and a tail hole of a guide arm in the X and Y directions. Background technology:
[0002] Currently, the X and Y distances between the center pin hole and the tail hole of the guide arm are measured using a 3D scanner. The specific operation method is to first apply developer to the measuring surface of the workpiece, attach reference points to the workpiece, and then scan it. The calculated distance is checked to see if it is within the specified size.
[0003] The disadvantage of this method is that 3D scanners have high requirements for the working environment and are generally operated in a laboratory. They need to move the workpiece, which is time-consuming and labor-intensive. In addition, the detection speed is slow and the cost is high. Summary of the invention:
[0004] The technical problem to be solved by the utility model is to provide a measuring tool for measuring the hole distance of a guide arm, which can conveniently measure the distance between the center pin hole and the tail hole of the guide arm in the X and Y directions and is simple to operate and easy to use.
[0005] The purpose of the present utility model is achieved as follows: it includes an X-guide rail, the front end of the X-guide rail is connected to a first measuring pin mounting seat by a bolt, the lower surface of the first measuring pin mounting seat is provided with a circular groove recessed into the interior thereof, a through hole penetrating the first measuring pin mounting seat is provided in the middle of the bottom of the groove, the first reference pin is placed in the groove and its lower end extends from the groove, the size of the first reference pin is adapted to the size of the central pin hole of the guide arm, the top of the first reference pin is fixed with a first measuring pin, the first measuring pin and the first reference pin are concentric, the upper part of the first measuring pin extends from the through hole, the upper part of the first measuring pin is threaded, the threaded portion of the first measuring pin extending from the through hole is screwed with a nut, and the first reference pin is fixed by tightening the nut after installation.
[0006] The front end of the first measuring pin mounting seat is connected to a connecting frame, the connecting frame includes a connecting plate, the left end and the right end of the connecting plate are respectively fixed with the left plate and the right plate extending forward, the connecting plate of the connecting frame is connected to the front end of the first measuring pin mounting seat by bolts, and the inner sides of the left and right plates are respectively provided with a positioning clamping plate, and each positioning clamping plate is fixed with a pin shaft, and the left and right plates are provided with holes for the pin shaft to pass through at the position of the pin shaft of the corresponding positioning clamping plate, and the pin shaft on the positioning clamping plate extends from the hole of the corresponding left plate or right plate, and the length of the pin shaft is greater than the sum of the thickness of the positioning clamping plate and the side plate, that is, the two positioning clamping plates are respectively connected to the left plate and the right plate by pin shafts, and the left and right plates are also provided with a number of adjusting bolts, and the front end of the adjusting bolts is against the positioning clamping plate. When the two positioning clamping plates are respectively clamped on the two sides of the workpiece, tightening the adjusting bolts can enable the two positioning clamping plates to clamp the workpiece.
[0007] The X-direction movable slider is installed on the X-direction guide rail, a horizontal digital display grating is installed on the X-direction movable slider, and a third measuring pin is fixed on the X-direction movable slider. The center of the third measuring pin and the center of the first measuring pin are on the same X-direction straight line.
[0008] A Y-direction slider is fixed on the X-direction movable slider, and a Y-direction guide rail is installed on the Y-direction slider. Second measuring pin mounting seats extending forward are provided on both the left and right ends of the Y-direction guide rail, and two second measuring pins are respectively fixed on the two second measuring pin mounting seats; the centers of the two second measuring pins and the center of the third measuring pin are on the same Y-direction straight line.
[0009] The left and right ends of the Y-direction guide rail are respectively provided with second reference pin mounting holes, and the second reference pin is mounted in the second reference pin mounting holes. After the second reference pin is mounted in the second reference pin mounting holes, its center of circle and the center of circle of the second measuring pin are on the same X-direction straight line.
[0010] The diameters of the measuring pins are the same.
[0011] The advantages of the utility model are that it can conveniently measure the distance between the center pin hole and the tail hole of the guide arm in the X and Y directions, is simple to operate and easy to use, can also measure similar workpieces, and can be used in high temperature and harsh environments. Description of the drawings:
[0012] Figure 1 This is a schematic diagram of the main structure of the utility model;
[0013] Figure 2 It is a schematic diagram of the top structure of the utility model. Specific implementation method:
[0014] The following combination Figure 1-2 Further explain the utility model;
[0015] It includes an X-guide rail 1, the front end of the X-guide rail is connected to a first measuring pin mounting seat 2 by bolts, the lower surface of the first measuring pin mounting seat is provided with a circular groove recessed into the interior thereof, a through hole penetrating the first measuring pin mounting seat is provided in the middle of the bottom of the groove, a first reference pin 3 is placed in the groove and its lower end extends from the groove, the size of the first reference pin is adapted to the size of the central pin hole of the guide arm, a first measuring pin 4 is fixed to the top of the first reference pin, the first measuring pin and the first reference pin are concentric, the upper part of the first measuring pin extends from the through hole, the upper part of the first measuring pin is threaded, a nut is screwed on the threaded part of the first measuring pin extending from the through hole, and the nut is tightened to fix the first reference pin after it is installed.
[0016] The front end of the first measuring pin mounting seat is connected to a connecting frame 5, which includes a connecting plate 51, and the left and right ends of the connecting plate are respectively fixed with a left plate 52 and a right plate 53 extending forward. The connecting plates of the connecting frame are connected to the front end of the first measuring pin mounting seat by bolts, and the inner sides of the left and right plates are respectively provided with positioning clamps 54, and each positioning clamp is fixed with a pin shaft 55. The left and right plates are provided with holes for the pin shafts to pass through at the positions of the pin shafts of the corresponding positioning clamps. The pin shafts on the positioning clamps extend from the holes of the corresponding left or right plates. The length of the pin shaft is greater than the sum of the thicknesses of the positioning clamps and the side plates, that is, the two positioning clamps are respectively connected to the left and right plates by pin shafts. The left and right plates are also provided with a number of adjusting bolts 56, and the front ends of the adjusting bolts are pressed against the positioning clamps. When the two positioning clamps are respectively clamped on the two sides of the workpiece, tightening the adjusting bolts can enable the two positioning clamps to clamp the workpiece.
[0017] An X-direction movable slider 6 is mounted on the X-direction guide rail 1. A transverse digital display grating 7 is mounted on the X-direction movable slider. A third measuring pin 8 is fixed on the X-direction movable slider. The center of the third measuring pin and the center of the first measuring pin are on the same X-direction straight line.
[0018] A Y-direction slider 9 is fixed on the X-direction movable slider, and a Y-direction guide rail 10 is installed on the Y-direction slider. Second measuring pin mounting seats 11 extending forward are provided at both left and right ends of the Y-direction guide rail. Two second measuring pins 12 are respectively fixed on the two second measuring pin mounting seats; the centers of the two second measuring pins and the center of the third measuring pin are on the same Y-direction straight line.
[0019] The left and right ends of the Y-direction guide rail are respectively provided with second reference pin mounting holes, in which second reference pin 13 is mounted. After the second reference pin is mounted in the second reference pin mounting hole, its center of circle is on the same X-direction straight line as the center of circle of the second measuring pin.
[0020] The diameters of the measuring pins are the same.
[0021] When measuring a single workpiece, insert the first reference pin 3 into the center pin hole of the guide arm. When measuring an assembly, remove the first reference pin and fit the groove on the lower surface of the first measuring pin mounting seat onto the center pin of the assembly.
[0022] Adjust the two positioning clamps so that they are attached to the side of the workpiece, and then tighten the adjusting bolts on the left and right plates of the connecting frame so that the adjusting bolts are against the positioning clamps.
[0023] Move the X-axis slider and Y-axis guide rail so that the second reference pin mounting hole aligns with the tail hole of the guide arm. Insert the second reference pin into the tail hole of the guide arm. For a guide arm with a tail twisted to the left, use the second reference pin mounting hole and the second reference pin on the left end of the Y-axis guide rail. For a guide arm with a tail twisted to the right, use the second reference pin mounting hole and the second reference pin on the right end of the Y-axis guide rail.
[0024] First, measure the distance from the center of the first measuring pin to the front end of the X-direction guide rail, and then add the distance displayed by the horizontal digital grating to obtain the X-direction distance between the center pin hole and the tail hole of the guide arm; use a vernier caliper to measure the distance between the second measuring pin and the third measuring pin and then subtract the diameter of the second measuring pin to obtain the Y-direction distance between the center pin hole and the tail hole of the guide arm.
[0025] The above are only preferred embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A gauge for measuring the hole spacing of a guide arm, comprising an X-direction guide rail (1), characterized by: The front end of the X-axis guide rail is connected to a first measuring pin mounting seat (2) by bolts, the lower surface of the first measuring pin mounting seat is provided with a circular groove recessed into the interior thereof, a through hole penetrating the first measuring pin mounting seat is provided in the middle of the groove bottom, a first reference pin (3) is placed in the groove and its lower end extends from the groove, the size of the first reference pin is adapted to the size of the central pin hole of the guide arm, a first measuring pin (4) is fixed to the top of the first reference pin, the upper part of the first measuring pin extends from the through hole, the upper part of the first measuring pin is threaded, and a nut is screwed on the threaded portion of the first measuring pin extending from the through hole; The front end of the first measuring pin mounting seat is connected to a connecting frame (5), which includes a connecting plate (51), and the left end and the right end of the connecting plate are respectively fixed with a left plate (52) and a right plate (53) extending forward. The connecting plate of the connecting frame is connected to the front end of the first measuring pin mounting seat by bolts. The inner sides of the left plate and the right plate are respectively provided with a positioning clamping plate (54), and each positioning clamping plate is fixed with a pin shaft (55). The left plate and the right plate are provided with holes for the pin shaft to pass through at the position of the pin shaft of the corresponding positioning clamping plate. The pin shaft on the positioning clamping plate extends from the hole of the corresponding left plate or right plate. The length of the pin shaft is greater than the sum of the thickness of the positioning clamping plate and the side plate, that is, the two positioning clamping plates are respectively connected to the left plate and the right plate through the pin shaft. The left plate and the right plate are also provided with a plurality of adjustment bolts (56), and the front ends of the adjustment bolts are pressed against the positioning clamping plate. An X-direction movable slide block (6) is mounted on the X-direction guide rail (1), a transverse digital display grating (7) is mounted on the X-direction movable slide block, and a third measuring pin (8) is fixed on the X-direction movable slide block; A Y-direction slider (9) is fixed on the X-direction movable slider, a Y-direction guide rail (10) is mounted on the Y-direction slider, and both left and right ends of the Y-direction guide rail are provided with a second measuring pin mounting seat (11) extending forward, and two second measuring pins (12) are respectively fixed on the two second measuring pin mounting seats; Second reference pin mounting holes are respectively provided at the left and right ends of the Y-guide rail, and the second reference pin (13) is mounted in the second reference pin mounting holes.
2. The gauge for measuring the hole spacing of a guide arm according to claim 1, characterized in that: After the second reference pin is installed in the second reference pin installation hole, the center of the circle of the second reference pin and the center of the circle of the second measuring pin are on the same X-direction straight line.
3. The gauge for measuring the hole spacing of a guide arm according to claim 1, characterized in that: The center of the third measuring pin and the center of the first measuring pin are on the same X-direction straight line.
4. The gauge for measuring the hole spacing of a guide arm according to claim 1, characterized in that: The first measuring pin and the first reference pin are concentric.
5. The gauge for measuring the hole spacing of a guide arm according to claim 1, characterized in that: The centers of the two second measuring pins and the center of the third measuring pin are on the same Y-direction straight line.
6. The gauge for measuring the hole spacing of a guide arm according to claim 1, characterized in that: The diameters of the measuring pins are the same.