CN210220882U - Hole position degree checking fixture - Google Patents
Hole position degree checking fixture Download PDFInfo
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- CN210220882U CN210220882U CN201921399309.7U CN201921399309U CN210220882U CN 210220882 U CN210220882 U CN 210220882U CN 201921399309 U CN201921399309 U CN 201921399309U CN 210220882 U CN210220882 U CN 210220882U
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Abstract
The utility model belongs to the technical field of hole position degree detection, in particular to a hole position degree detection tool, which comprises a detection block, an X-direction limiting guide boss, a Y-direction limiting guide boss and a detection block assembly, wherein the detection block is provided with a detection pin guide hole, the X-direction limiting guide boss is provided with an X-direction limiting guide surface facing the detection pin guide hole, and the Y-direction limiting guide boss is provided with a Y-direction limiting guide surface facing the detection pin guide hole and perpendicular to the X-direction limiting guide surface; the detection block assembly comprises a detection pin and a guide block, the guide block is provided with a guide surface which can be attached to the X-direction limiting guide surface and the Y-direction limiting guide surface, the guide block is provided with a detection pin assembly hole, and the detection block assembly is provided with a limiting surface which can be attached to the X-direction limiting guide boss and the Y-direction limiting guide boss. The hole position accuracy testing fixture can accurately measure the accurate offset of the hole position of the to-be-tested hole of the to-be-tested workpiece.
Description
Technical Field
The utility model belongs to the technical field of hole position degree detects, especially, relate to a utensil is examined to hole position degree.
Background
At present, the position degree of an injection molding hole is detected by using a special detection tool. The existing injection molding hole location degree detection tool simulates the assembly environment of a detected injection molding, the detected injection molding is fixed on the detection tool according to the actual assembly limit requirement, a detection pin is inserted from a detection pin guide hole on the detection tool, then the injection molding is inserted into a hole to be detected, if the detection pin interferes with the edge of the hole to be detected, the detection pin cannot be inserted, the situation that the location degree of the hole to be detected deviates from the standard range is shown, and the injection molding hole is unqualified.
The hole location degree of the existing injection molding piece can only be judged whether the hole location degree to be detected meets the design requirements, but the accurate offset of the hole location cannot be measured.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: to a utensil is examined to prior art's injection molding hole site degree of putting, only can judge whether the hole site degree of waiting to examine accords with the design requirement, but can not measure the problem of the accurate offset of hole position, provide a utensil is examined to hole site degree.
In order to solve the technical problem, the embodiment of the utility model provides a hole position gauge, which comprises a detection block, an X-direction limiting guide boss, a Y-direction limiting guide boss and a detection block assembly, the detection block is provided with a first surface and a second surface which are opposite, the second surface is matched with the surface shape of the workpiece to be detected, the detection block is provided with a detection pin guide hole penetrating through the first surface and the second surface, at least part of the first surface forms an XY plane, the X-direction limiting guide boss, the Y-direction limiting guide boss and the detection pin guide hole are positioned in the XY plane, the X-direction limiting guide boss is provided with an X-direction limiting guide surface facing the guide hole of the detection pin, the Y-direction limiting guide boss is provided with a Y-direction limiting guide surface which faces the guide hole of the detection pin and is vertical to the X-direction limiting guide surface, the X-direction limiting guide surface and the Y-direction limiting guide surface are parallel to the central line of the detection pin guide hole;
the detection block assembly comprises a detection pin and a guide block, the guide block is provided with a guide surface which can be attached to the X-direction limiting guide surface and the Y-direction limiting guide surface and a sliding surface which can be in sliding contact with the XY plane, a detection pin assembly hole is formed in the guide block, the detection pin penetrates through the detection pin assembly hole and is inserted into the detection pin guide hole, the central line of the detection pin is overlapped with the central line of the detection pin guide hole, and the detection block assembly is provided with a limiting surface which can be attached to the X-direction limiting guide boss and the Y-direction limiting guide boss.
Optionally, the detecting block assembly further includes a limiting block, a limiting block assembling groove is formed in one side, located on the guide surface, of the guide block, the limiting block is inserted into the limiting block assembling groove, and the limiting surface is a side surface, perpendicular to the guide surface, of the limiting block;
when detecting the X-direction offset of the hole position degree of the hole to be detected of the workpiece to be detected, in an initial state, the limiting surface is attached to one side surface, perpendicular to the X-direction limiting surface, of the X-direction limiting guide boss; when detecting the Y-direction offset of the hole position degree of the to-be-detected hole of the workpiece to be detected, in an initial state, the limiting surface is attached to one side surface of the Y-direction limiting guide boss, wherein the side surface is perpendicular to the Y-direction limiting guide boss.
Optionally, two X-direction limiting guide bosses are provided, the X-direction limiting guide surfaces of the two X-direction limiting guide bosses are in the same plane, two Y-direction limiting guide bosses are provided, and the Y-direction limiting guide surfaces of the two Y-direction limiting guide bosses are in the same plane;
the distance between the central line of the two detection pin assembling holes and the guide surface of the guide block is equal, and the limiting block can be inserted in one limiting block assembling groove;
when the X-direction offset of the hole location degree of the hole to be detected of the workpiece to be detected is detected, the limiting block is positioned between the two X-direction limiting guide bosses, and the detection pin penetrates through one of the detection pin assembling holes and is inserted into the detection pin guide hole; when the Y-direction offset of the hole position degree of the hole to be detected of the workpiece to be detected is detected, the limiting block is positioned between the two Y-direction limiting guide bosses, and the detection pin penetrates through the other detection pin assembling hole and is inserted into the detection pin guide hole.
Optionally, the limiting surface is a side surface of the guide block perpendicular to the guide surface;
when the X-direction offset of the hole position degree of the hole to be detected of the workpiece to be detected is detected, the limiting surface is attached to the Y-direction limiting guide surface in an initial state; when the Y-direction offset of the hole position degree of the to-be-detected hole of the workpiece to be detected is detected, the limiting surface is attached to the X-direction limiting guide surface in an initial state.
Optionally, two X-direction limiting guide bosses are provided, the X-direction limiting guide surfaces of the two X-direction limiting guide bosses are in the same plane, two Y-direction limiting guide bosses are provided, and the Y-direction limiting guide surfaces of the two Y-direction limiting guide bosses are in the same plane;
the detecting pin assembling holes are two, and the distance from the central line of the detecting pin assembling holes to the guide surface of the guide block is equal.
Optionally, a distance from the X-direction limit guide surface to a center line of the detection pin guide hole is equal to a distance from the Y-direction limit guide surface to the center line of the detection pin guide hole.
Optionally, a center line of the detection pin coincides with a center line of the detection pin fitting hole.
Optionally, the detection pin includes a detection section and an assembly section connected to one end of the detection section, an outer diameter of the detection section is smaller than inner diameters of the detection pin assembly hole and the detection pin guide hole, the detection section passes through the detection pin assembly hole and is inserted into the detection pin guide hole, and an outer diameter of the assembly section is larger than an inner diameter of the detection pin assembly hole;
the guide block is located the border position of detecting the round pin pilot hole is provided with the locating surface, the surface of assembly section with the laminating of locating surface.
Optionally, the detection pin assembly hole and the detection pin guide hole are cylindrical holes, the detection section is a first cylinder, the assembly section is a second cylinder coaxial with the first cylinder, and the outer diameter of the second cylinder is larger than that of the first cylinder;
optionally, the locating surface is an arc surface attached to the outer surface of the second cylinder, and the center line of the arc surface coincides with the center line of the detection pin assembly hole.
The hole position detecting tool of the embodiment of the utility model is used for detecting the X-direction offset of the hole position of the hole to be detected of the workpiece to be detected, the guide surface of the guide block is attached to the X-direction limiting guide surface, the X-direction limiting guide surface provides the limiting and motion guiding of the X-direction motion of the guide block, in the initial state (the hole position degree gauge is installed in order, but the detection block assembly does not start to move), the limiting surface of the detection block assembly is attached to the X-direction limiting guide boss or the Y-direction limiting guide boss, when the detection pin moves a certain distance from the initial state and contacts with the inner wall of the hole to be detected on the workpiece to be detected, a space is formed between the limiting surface and the X-direction limiting guide boss or the Y-direction limiting guide boss, the gap is just equal to the moving distance of the detection pin along the X direction, and the position offset of the hole to be detected of the workpiece to be detected in the X direction can be obtained according to the distance. When the Y-direction offset of the hole position degree of the hole to be detected of the workpiece to be detected is detected, the guide surface of the guide block is attached to the Y-direction limiting guide surface, the Y-direction limiting guide surface provides limiting and motion guiding of Y-direction motion of the guide block, in an initial state (in a state that the hole position degree detection tool is ready to be installed but does not start to move the detection block assembly), the limiting surface of the detection block assembly is attached to the X-direction limiting guide boss or the Y-direction limiting guide boss, when the detection pin moves for a certain distance from the initial state and contacts with the inner wall of the hole to be detected on the workpiece to be detected, a gap is formed between the limiting surface and the X-direction limiting guide boss or the Y-direction limiting guide boss, the gap is just equal to the moving distance of the detection pin along the Y direction, and the position offset of the hole to be detected of the workpiece to be. Through the obtained two position offset data of the hole to be detected of the workpiece to be detected in the X direction and the Y direction, the offset condition (hole position degree) of the hole to be detected of the workpiece to be detected in a detection plane can be accurately described. Therefore, the hole location degree gauge of the embodiment can accurately measure the accurate offset of the hole location of the to-be-detected hole of the to-be-detected workpiece.
Drawings
Fig. 1 is a schematic view of a detection block, an X-direction limiting guide boss and a Y-direction limiting guide boss of a hole position degree detection tool provided in a first embodiment of the present invention;
fig. 2 is a schematic view of a detection block assembly of the hole location degree gauge according to the first embodiment of the present invention;
fig. 3 is an exploded view of a detecting block assembly of the hole location degree measuring device according to the first embodiment of the present invention;
fig. 4 is a schematic position diagram (in an initial state) of the detection block assembly when the hole position degree detection tool provided by the first embodiment of the present invention detects the X-direction offset of the hole position degree of the hole to be detected of the workpiece to be detected;
fig. 5 is a schematic diagram of a position of a detecting block assembly when a hole position detecting tool provided in a first embodiment of the present invention detects an X-direction offset of a hole position of a hole to be detected in a workpiece to be detected (a detecting pin moves a distance from an initial state and contacts with an inner wall of the hole to be detected in the workpiece to be detected);
fig. 6 is an exploded view of a detecting block assembly of a hole location degree checking fixture according to a second embodiment of the present invention;
fig. 7 is a schematic position diagram (in an initial state) of the detection block assembly when the hole position degree detection tool provided by the second embodiment of the present invention detects the X-direction offset of the hole position degree of the hole to be detected of the workpiece to be detected;
fig. 8 is a schematic position diagram of the hole position degree detection tool provided by the second embodiment of the present invention, which is used for detecting the X-direction offset of the hole position degree of the hole to be detected in the workpiece to be detected (the detection pin moves a distance from the initial state and contacts with the inner wall of the hole to be detected in the workpiece to be detected).
The reference numerals in the specification are as follows:
1. a detection block; 11. detecting a pin guide hole; 12. an XY plane; 2. an X-direction limiting guide boss; 21. an X-direction limiting guide surface; 22. a side surface; 3. a Y-direction limiting guide boss; 31. a Y-direction limiting guide surface; 32. a side surface; 4. a detection pin; 41. a detection section; 42. assembling the sections; 5. a guide block; 51. a guide surface; 52. detecting a pin assembling hole; 53. a limiting block assembling groove; 54. positioning the surface; 55. a limiting surface; 6. a limiting block; 61. a limiting surface;
10. a workpiece to be tested; 101. and (6) a hole to be detected.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Herein, the X, Y directions are two directions of a plane coordinate system, and the XY plane is a horizontal plane. X, Y is shown by the arrows in FIGS. 1, 4, 5, 7, and 8.
The hole position degree gauge provided by the embodiment of the utility model comprises a detection block, an X-direction limiting guide boss, a Y-direction limiting guide boss and a detection block assembly, the detection block is provided with a first surface and a second surface which are opposite, the second surface is matched with the surface shape of the workpiece to be detected, the detection block is provided with a detection pin guide hole penetrating through the first surface and the second surface, at least part of the first surface forms an XY plane, the X-direction limiting guide boss, the Y-direction limiting guide boss and the detection pin guide hole are positioned in the XY plane, the X-direction limiting guide boss is provided with an X-direction limiting guide surface facing the guide hole of the detection pin, the Y-direction limiting guide boss is provided with a Y-direction limiting guide surface which faces the guide hole of the detection pin and is vertical to the X-direction limiting guide surface, the X-direction limiting guide surface and the Y-direction limiting guide surface are parallel to the central line of the detection pin guide hole.
The detection block assembly comprises a detection pin and a guide block, the guide block is provided with a guide surface which can be attached to the X-direction limiting guide surface and the Y-direction limiting guide surface and a sliding surface which can be in sliding contact with the XY plane, a detection pin assembly hole is formed in the guide block, the detection pin penetrates through the detection pin assembly hole and is inserted into the detection pin guide hole, the central line of the detection pin is overlapped with the central line of the detection pin guide hole, and the detection block assembly is provided with a limiting surface which can be attached to the X-direction limiting guide boss and the Y-direction limiting guide boss.
The second surface is matched with the surface shape of the workpiece to be detected, the hole position degree detection tool simulates the assembly environment of the workpiece to be detected, and the workpiece to be detected is fixed on the detection block of the hole position degree detection tool according to the actual assembly limit requirement.
The hole position detecting tool of the embodiment of the utility model is used for detecting the X-direction offset of the hole position of the hole to be detected of the workpiece to be detected, the guide surface of the guide block is attached to the X-direction limiting guide surface, the X-direction limiting guide surface provides the limiting and motion guiding of the X-direction motion of the guide block, in the initial state (the hole position degree gauge is installed in order, but the detection block assembly does not start to move), the limiting surface of the detection block assembly is attached to the X-direction limiting guide boss or the Y-direction limiting guide boss, when the detection pin moves a certain distance from the initial state and contacts with the inner wall of the hole to be detected on the workpiece to be detected, a space is formed between the limiting surface and the X-direction limiting guide boss or the Y-direction limiting guide boss, the gap is just equal to the moving distance of the detection pin along the X direction, and the position offset of the hole to be detected of the workpiece to be detected in the X direction can be obtained according to the distance. When the Y-direction offset of the hole position degree of the hole to be detected of the workpiece to be detected is detected, the guide surface of the guide block is attached to the Y-direction limiting guide surface, the Y-direction limiting guide surface provides limiting and motion guiding of Y-direction motion of the guide block, in an initial state (in a state that the hole position degree detection tool is ready to be installed but does not start to move the detection block assembly), the limiting surface of the detection block assembly is attached to the X-direction limiting guide boss or the Y-direction limiting guide boss, when the detection pin moves for a certain distance from the initial state and contacts with the inner wall of the hole to be detected on the workpiece to be detected, a gap is formed between the limiting surface and the X-direction limiting guide boss or the Y-direction limiting guide boss, the gap is just equal to the moving distance of the detection pin along the Y direction, and the position offset of the hole to be detected of the workpiece to be. Through the obtained two position offset data of the hole to be detected of the workpiece to be detected in the X direction and the Y direction, the offset condition (hole position degree) of the hole to be detected of the workpiece to be detected in a detection plane can be accurately described. Therefore, the hole location degree gauge of the embodiment can accurately measure the accurate offset of the hole location of the to-be-detected hole of the to-be-detected workpiece.
Embodiments of the present invention are described in detail below with reference to fig. 1 to 8.
First embodiment
As shown in fig. 1 to 5, the hole position degree measuring tool according to the first embodiment of the present invention includes a detecting block 1, an X-direction limit guide boss 2, a Y-direction limit guide boss 3 and a detecting block assembly, wherein the detecting block 1 has a first surface and a second surface opposite to each other, the second surface is adapted to the surface shape of a workpiece 10 to be measured, the detecting block 1 is provided with a detecting pin guide hole 11 penetrating through the first surface and the second surface, at least a part of the first surface forms an XY plane 12, the X-direction limit guide boss 2, the Y-direction limit guide boss 3 and the detecting pin guide hole 11 are located in the XY plane 12, the X-direction limit guide boss 2 has an X-direction limit guide surface 21 facing the detecting pin guide hole 11, the Y-direction limit guide boss 3 has a Y-direction limit guide surface 31 facing the detecting pin guide hole 11 and perpendicular to the X-direction limit guide surface 21, the X-direction limit guide surface 21 and the Y-direction limit guide surface 31 are parallel to the center line of the detection pin guide hole 11.
The detection block assembly comprises a detection pin 4, a guide block 5 and a limiting block 6, wherein the guide block 5 is provided with a guide surface 51 which can be attached to the X-direction limiting guide surface 21 and the Y-direction limiting guide surface 31 and a sliding surface which can be in sliding contact with the XY plane 12, the guide block 5 is provided with a detection pin assembly hole 52, the detection pin 4 penetrates through the detection pin assembly hole 52 and is inserted into the detection pin guide hole 11, the central line of the detection pin 4 is overlapped with the central line of the detection pin guide hole 11, the detection block assembly is provided with a limiting surface 61 which can be attached to the X-direction limiting guide boss 2 and the Y-direction limiting guide boss 3, and the limiting surface 61 is one side surface of the limiting block 6 which is perpendicular to the guide surface 51. A limiting block assembling groove 53 is formed in one side, located on the guide surface 51, of the guide block 5, and the limiting block 6 is inserted into the limiting block assembling groove 53.
Preferably, the detection block 1, the X-direction limit guide boss 2 and the Y-direction limit guide boss 3 are integrally formed. However, in some alternatives, the detecting block 1, the X-direction limiting guide boss 2 and the Y-direction limiting guide boss 3 may be separately processed, and then the X-direction limiting guide boss 2 and the Y-direction limiting guide boss 3 are mounted on the detecting block 1.
Referring to fig. 1, 4 and 5, when detecting the X-direction offset of the hole position degree of the hole 101 to be inspected of the workpiece 10 to be inspected, in an initial state (as shown in fig. 4), the limiting surface 61 is attached to one side surface 22 of the X-direction limiting guide boss 2 perpendicular to the X-direction limiting guide surface 21. When detecting the Y-direction offset of the hole location degree of the hole 101 to be detected of the workpiece 10 to be detected, in an initial state, the limiting surface 61 is attached to one side surface 32 of the Y-direction limiting guide boss 3, which is perpendicular to the Y-direction limiting guide surface 31.
Preferably, two X-direction limiting guide bosses 2 are arranged, the X-direction limiting guide surfaces 21 of the two X-direction limiting guide bosses 2 are in the same plane, two Y-direction limiting guide bosses 3 are arranged, and the Y-direction limiting guide surfaces 31 of the two Y-direction limiting guide bosses 3 are in the same plane; the two detection pin assembling holes 52 and the two limit block assembling grooves 53 are arranged, the distance from the central line of the two detection pin assembling holes 52 to the guide surface 51 of the guide block 5 is equal, and the limit block 6 can be inserted into one of the limit block assembling grooves 53.
Two detect round pin pilot hole 52 and two stopper assembly groove 53 constitutes two sets ofly, one of them is a set of detect round pin pilot hole 52 reaches stopper assembly groove 53 is used for the X of waiting to examine the hole position degree of examining hole 101 of work piece 10 that awaits measuring to the detection of offset, another group detect round pin pilot hole 52 and stopper assembly groove 53 is used for waiting to examine the Y of waiting to examine the hole position degree of hole 101 of work piece 10 to the detection of offset.
When detecting the X-direction offset of the hole location degree of the hole 101 to be detected of the workpiece 10 to be detected, the limiting block 6 is located between the two X-direction limiting guide bosses 2, the detection pin 4 passes through one of the detection pin assembly holes 52 and is inserted into the detection pin guide hole 11, and in an initial state, the limiting surface 61 of the limiting block 6 is attached to one side surface 22, perpendicular to the X-direction limiting surface 21, of one of the X-direction limiting guide bosses 2. When the Y-direction offset of the hole location degree of the hole 101 to be detected of the workpiece 10 to be detected is detected, the limiting block 6 is located between the two Y-direction limiting guide bosses 3, the detection pin 4 penetrates through the other detection pin assembling hole 52 and is inserted into the detection pin guide hole 11, and in an initial state, the limiting surface 61 of the limiting block 6 is attached to one side surface 32, perpendicular to the Y-direction limiting surface 31, of one of the Y-direction limiting guide bosses 3.
Preferably, the distance from the X-direction stopper guide surface 21 to the center line of the detection pin guide hole 11 is equal to the distance from the Y-direction stopper guide surface 31 to the center line of the detection pin guide hole 11.
However, the positions of the X-direction limit guide boss 2, the Y-direction limit guide boss 3 and the detection pin guide hole 11 may also be adjusted according to the actual size of the detection block assembly, but it is necessary to ensure that the center line of the detection pin 4 in the detection block assembly coincides with the center line of the detection pin guide hole 11 in the state that the detection block assembly is limited by the X-direction limit guide boss 2 or the Y-direction limit guide boss 3.
Preferably, the center line of the detection pin 4 coincides with the center line of the detection pin fitting hole 52. Thus, the center line of the detection pin 4, the center line of the detection pin attachment hole 52, and the center line of the detection pin guide hole 11 overlap.
As shown in fig. 2 and 3, the detection pin 4 includes a detection section 41 and an assembly section 42 connected to one end of the detection section 41, an outer diameter of the detection section 41 is smaller than inner diameters of the detection pin assembly hole 52 and the detection pin guide hole 11, the detection section 41 passes through the detection pin assembly hole 52 and is inserted into the detection pin guide hole 11, and an outer diameter of the assembly section 42 is larger than an inner diameter of the detection pin assembly hole 52. The guide block 5 is provided with a positioning surface 54 at the edge of the detection pin assembling hole 52, and the outer surface of the assembling section 42 is attached to the positioning surface 54. The coaxiality of the detection pin 4 and the detection pin fitting hole 52 is ensured by the positioning surface 54.
Preferably, the detecting pin assembling hole 52 and the detecting pin guiding hole 11 are cylindrical holes, the detecting section 41 is a first cylinder, the assembling section 42 is a second cylinder coaxial with the first cylinder 41, and the outer diameter of the second cylinder is larger than that of the first cylinder. Namely, the detection pin 4 is a concentric two-step cylinder.
The detection section 41 is used to detect the hole location degree, and the assembly section 42 is used to detect the assembly of the pin 4 and the guide block 5. The outer diameter of the detection section 41 is designed according to the diameter and the position degree of the hole 10 to be detected of the workpiece 10 to be detected, the detection pin 4 is replaceable, and the detection pins 4 with different sizes are used for holes with different sizes. For example, a circular hole with a design diameter of 7 ± 0.1mm and a required position degree of Φ 1 is detected, and the diameter of the detection section 41 of the detection pin 4 is designed to be 6.4 mm. The size of the assembly section 42 of the detection pin 4 is enough to be assembled with the guide block 5 without falling off.
Preferably, the positioning surface 54 is an arc surface attached to the outer surface of the second cylinder, and the center line of the arc surface coincides with the center line of the detection pin assembling hole 52.
Referring to fig. 4 and 5, the working principle of the hole location degree gauge provided by the first embodiment is as follows:
when detecting the X-direction offset of the hole location degree of the hole 101 to be detected of the workpiece 10 to be detected, after the hole location degree detection tool is assembled with the workpiece 10 to be detected, in an initial state (as shown in fig. 4), the guide surface 51 of the guide block 5 is attached to the X-direction limiting guide surface 21, the limiting surface 61 is attached to the side surface 22 of the X-direction limiting guide boss 2, the X-direction limiting guide boss 2 provides a detection path for the detection block assembly (the X-direction limiting guide surface 21 provides limiting and motion guiding of the guide block 5 in the X-direction motion), the center line of the detection pin 4 of the detection block assembly is overlapped with the theoretical center line of the hole 101 to be detected of the workpiece 10 to be detected, assuming that the theoretical distance between the outer wall of the detection pin 4 and the hole wall of the hole 101 to be detected is L, the detection block assembly moves along the detection path provided by the X-direction limiting guide boss 2 to be attached to the hole wall of the hole 101 to be detected (the outer wall of the hole 101 to be detected is attached to the hole wall of the detection block assembly), the gap between the limiting surface 61 of the X-direction limiting guide boss 2 is the motion distance h of the detection block assembly (the wedge-shaped displacement h, the displacement h of the detection block assembly can be.
The measurement method of the hole position offset △ L2 in the Y direction is the same as the measurement method of the hole position offset △ L1 in the X direction, and the offset condition (hole position) of the hole 101 to be inspected of the workpiece 10 to be inspected in the inspection plane can be accurately described by obtaining two position offset data of the hole 101 to be inspected of the workpiece 10 to be inspected in the X direction and the Y direction.
Second embodiment
Fig. 6 to 8 show an inspection device for hole location degree according to a second embodiment of the present invention, which is different from the first embodiment in that:
the limiting block is eliminated, and correspondingly, the limiting block assembling groove is eliminated on the guide block. At this time, the stopper surface 55 is a side surface of the guide block 5 perpendicular to the guide surface 51. When detecting the X-direction offset of the hole location degree of the workpiece 10 to be detected, in an initial state, the limiting surface 55 is attached to the Y-direction limiting guide surface 31; when detecting the Y-direction offset of the hole location degree of the hole 101 to be detected of the workpiece 10 to be detected, in an initial state, the limiting surface 55 is attached to the X-direction limiting guide surface 21.
In the second embodiment, the stopper face 55 is directly formed on the guide block 5, and the stopper and the moving distance reference in the initial state are performed by the X-direction stopper guide boss 2 and the Y-direction stopper guide boss 3. Compared with the first embodiment, the device has the advantages of few parts, simple structure and low cost.
Referring to fig. 7 and 8, the working principle of the hole location degree gauge provided by the second embodiment is as follows:
when detecting the X-direction offset of the hole location degree of the hole 101 to be detected of the workpiece 10 to be detected, after the detection block assembly is assembled, the detection pin 4 is inserted into the detection pin guide hole 11, in an initial state (as shown in fig. 7), one side surface (a limiting surface 55) of the guide block 5 is attached to the Y-direction limiting guide surface 31, the guide surface 51 of the guide block 5 is attached to the X-direction limiting guide surface 21, the theoretical distance between the outer wall of the detection pin 4 and the inner wall of the hole 101 to be detected in the movement direction is L, the detection block assembly moves along a detection path provided by the X-direction limiting guide boss 2 to be attached to the hole wall of the hole 101 to be detected (the outer wall of the detection pin 4 is attached to the hole wall of the hole 101 to be detected), the actual distance between the detection pin 4 and the hole 101 to be detected is equal to the movement distance L1 of the guide block 5 (the movement distance L1 of the guide block 5 is equal to the distance between the limiting surface 55 and the Y-direction limiting guide surface 31 of the guide block 5), and then the hole location.
The method of measuring the hole position deviation amount △ L2 in the Y direction is the same as the method of measuring the hole position deviation amount △ L1 in the X direction, △ L2 is L2-L, where L2 is the moving distance of the guide block 5 when the outer wall of the detection pin 4 is attached to the hole wall of the hole to be inspected 101.
Through the obtained two position offset data of the hole to be detected 101 of the workpiece to be detected 10 in the X direction and the Y direction, the offset condition (hole position degree) of the hole to be detected 101 of the workpiece to be detected 10 in the detection plane can be accurately described. Thus, the hole position accurate offset of the hole to be inspected 10 of the workpiece to be inspected 10 can be accurately measured.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A hole location degree gauge is characterized by comprising a detection block, an X-direction limiting guide boss, a Y-direction limiting guide boss and a detection block assembly, the detection block is provided with a first surface and a second surface which are opposite, the second surface is matched with the surface shape of the workpiece to be detected, the detection block is provided with a detection pin guide hole penetrating through the first surface and the second surface, at least part of the first surface forms an XY plane, the X-direction limiting guide boss, the Y-direction limiting guide boss and the detection pin guide hole are positioned in the XY plane, the X-direction limiting guide boss is provided with an X-direction limiting guide surface facing the guide hole of the detection pin, the Y-direction limiting guide boss is provided with a Y-direction limiting guide surface which faces the guide hole of the detection pin and is vertical to the X-direction limiting guide surface, the X-direction limiting guide surface and the Y-direction limiting guide surface are parallel to the central line of the detection pin guide hole;
the detection block assembly comprises a detection pin and a guide block, the guide block is provided with a guide surface which can be attached to the X-direction limiting guide surface and the Y-direction limiting guide surface and a sliding surface which can be in sliding contact with the XY plane, a detection pin assembly hole is formed in the guide block, the detection pin penetrates through the detection pin assembly hole and is inserted into the detection pin guide hole, the central line of the detection pin is overlapped with the central line of the detection pin guide hole, and the detection block assembly is provided with a limiting surface which can be attached to the X-direction limiting guide boss and the Y-direction limiting guide boss.
2. The hole location degree gauge according to claim 1, wherein the detection block assembly further comprises a limiting block, a limiting block assembling groove is formed in one side, located on the guide surface, of the guide block, the limiting block is inserted into the limiting block assembling groove, and the limiting surface is one side surface, perpendicular to the guide surface, of the limiting block;
when the X-direction offset of the hole position degree of the hole to be detected of the workpiece to be detected is detected, in an initial state, the limiting surface is attached to one side surface, perpendicular to the X-direction limiting guide surface, of the X-direction limiting guide boss; when the Y-direction offset of the hole position degree of the to-be-detected hole of the workpiece to be detected is detected, in an initial state, the limiting surface is attached to one side surface of the Y-direction limiting guide boss, wherein the Y-direction limiting guide boss is perpendicular to the Y-direction limiting guide surface.
3. The hole location degree gauge according to claim 2, wherein two X-direction limiting guide bosses are provided, the X-direction limiting guide surfaces of the two X-direction limiting guide bosses are in the same plane, two Y-direction limiting guide bosses are provided, and the Y-direction limiting guide surfaces of the two Y-direction limiting guide bosses are in the same plane;
the distance between the central line of the two detection pin assembling holes and the guide surface of the guide block is equal, and the limiting block can be inserted in one limiting block assembling groove;
when the X-direction offset of the hole location degree of the hole to be detected of the workpiece to be detected is detected, the limiting block is positioned between the two X-direction limiting guide bosses, and the detection pin penetrates through one of the detection pin assembling holes and is inserted into the detection pin guide hole; when the Y-direction offset of the hole position degree of the hole to be detected of the workpiece to be detected is detected, the limiting block is positioned between the two Y-direction limiting guide bosses, and the detection pin penetrates through the other detection pin assembling hole and is inserted into the detection pin guide hole.
4. The hole location degree gauge according to claim 1, wherein the limiting surface is a side surface of the guide block perpendicular to the guide surface;
when the X-direction offset of the hole position degree of the hole to be detected of the workpiece to be detected is detected, the limiting surface is attached to the Y-direction limiting guide surface in an initial state; when the Y-direction offset of the hole position degree of the to-be-detected hole of the workpiece to be detected is detected, the limiting surface is attached to the X-direction limiting guide surface in an initial state.
5. The hole location degree gauge according to claim 4, wherein two X-direction limiting guide bosses are provided, the X-direction limiting guide surfaces of the two X-direction limiting guide bosses are in the same plane, two Y-direction limiting guide bosses are provided, and the Y-direction limiting guide surfaces of the two Y-direction limiting guide bosses are in the same plane;
the detecting pin assembling holes are two, and the distance from the central line of the detecting pin assembling holes to the guide surface of the guide block is equal.
6. The hole location degree gauge according to any one of claims 1 to 5, wherein a distance from the X-direction limiting guide surface to a center line of the detection pin guide hole is equal to a distance from the Y-direction limiting guide surface to the center line of the detection pin guide hole.
7. The hole location degree gauge according to any one of claims 1 to 5, wherein a center line of the detection pin coincides with a center line of the detection pin fitting hole.
8. The hole location degree gauge according to any one of claims 1 to 5, wherein the detection pin comprises a detection section and an assembly section connected to one end of the detection section, the outer diameter of the detection section is smaller than the inner diameters of the detection pin assembly hole and the detection pin guide hole, the detection section passes through the detection pin assembly hole and is inserted into the detection pin guide hole, and the outer diameter of the assembly section is larger than the inner diameter of the detection pin assembly hole;
the guide block is located the border position of detecting the round pin pilot hole is provided with the locating surface, the surface of assembly section with the laminating of locating surface.
9. The hole location degree gauge according to claim 8, wherein the detecting pin assembling hole and the detecting pin guiding hole are cylindrical holes, the detecting section is a first cylinder, the assembling section is a second cylinder coaxial with the first cylinder, and the outer diameter of the second cylinder is larger than that of the first cylinder.
10. The hole location degree gauge according to claim 9, wherein the positioning surface is an arc surface attached to the outer surface of the second cylinder, and a center line of the arc surface coincides with a center line of the detection pin assembly hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921399309.7U CN210220882U (en) | 2019-08-23 | 2019-08-23 | Hole position degree checking fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921399309.7U CN210220882U (en) | 2019-08-23 | 2019-08-23 | Hole position degree checking fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210220882U true CN210220882U (en) | 2020-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921399309.7U Active CN210220882U (en) | 2019-08-23 | 2019-08-23 | Hole position degree checking fixture |
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| Country | Link |
|---|---|
| CN (1) | CN210220882U (en) |
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2019
- 2019-08-23 CN CN201921399309.7U patent/CN210220882U/en active Active
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