CN110170885B

CN110170885B - Probe needle

Info

Publication number: CN110170885B
Application number: CN201910467233.5A
Authority: CN
Inventors: 刘思其
Original assignee: Guangdong Evenwin Precision Technology Co Ltd
Current assignee: Guangdong Evenwin Precision Technology Co Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-12-08
Anticipated expiration: 2039-05-31
Also published as: CN110170885A

Abstract

The invention relates to a probe, comprising: the needle body comprises a first end and a second end, and the first end can be fixedly connected with a machine tool clamping position; the first connecting arm comprises a first end and a second end, the first end of the first connecting arm is connected with the second end of the needle body, and the second end of the first connecting arm extends away from the needle body along the axial direction of the needle body; the second connecting arm comprises a first end and a second end, the first end of the second connecting arm is connected with the second end of the first connecting arm, the second end of the second connecting arm extends along the radial direction of the needle body, and an avoiding part is formed among the second end of the needle body, the first connecting arm and the second connecting arm; the first detecting head is arranged on the second connecting arm; and the second detecting head is arranged on one side of the first detecting head, which is far away from the second connecting arm. Such a probe is capable of probing a plurality of different locations of the same product.

Description

Probe needle

Technical Field

The invention relates to the technical field of CNC machining detection, in particular to a probe.

Background

In the prior art, different positions of the same product are usually required to be detected, so that the machining precision requirement is improved, the matching precision of the product is better, and the movement is smoother.

Because the structure difference of each position of same product is great, for example have porose structure, slide rail groove structure, round hole structure, waist type pore structure etc. simultaneously, the probe of different grade type need be used when having caused the structure to the different positions of same product to survey, can't be directly through ordinary probe, all positions of direct detection such as L type probe, this just need set up a plurality of clamp positions on CNC lathe, install multiple different probe, the probe of difference to same product is used different to the survey, complex operation, detection efficiency is very low.

Disclosure of Invention

Based on this, when necessary to survey different positions of same product, need use different grade type probe, complex operation, the lower problem of efficiency provides a probe that can survey a plurality of different positions of same product.

A probe, comprising:

the needle body comprises a first end and a second end, and the first end can be fixedly connected with a machine tool clamping position;

the first connecting arm comprises a first end and a second end, the first end of the first connecting arm is connected with the second end of the needle body, and the second end of the first connecting arm extends away from the needle body along the axial direction of the needle body;

the second connecting arm comprises a first end and a second end, the first end of the second connecting arm is connected with the second end of the first connecting arm, the second end of the second connecting arm extends along the radial direction of the needle body, and an avoiding part is formed among the second end of the needle body, the first connecting arm and the second connecting arm;

the first detecting head is arranged on the second connecting arm; and

and the second detecting head is arranged on one side of the first detecting head, which is far away from the second connecting arm.

Above-mentioned probe, can be through the degree of depth in the direct detection hole of second detecting head and the length etc. in waist type hole, and owing to be provided with dodges the portion, can make first detecting head and second detecting head can stretch into the slotted hole of special construction, surveys the width of slotted hole through first detecting head, and the height of slotted hole is surveyed in the cooperation of first detecting head or first detecting head and second detecting head. The probe can realize the point taking of a plurality of different positions of the same structural feature by one probe according to the structural characteristics and the precision requirement of a product so as to meet the requirement of processing precision and the requirement of drawing tolerance. And, can reduce CNC lathe clamp position and material turnover, promote machining efficiency.

In one embodiment, the first end of the first connecting arm is located at the edge of the second end of the needle body, and one side surface of the first connecting arm, which is far away from the avoiding part, is flush with the outer side surface of the needle body. Can make the second end of needle body more concentrate in radial ascending vacant part, such structure can guarantee to form the portion of dodging of wider range between second end, first linking arm and the second linking arm of needle body, is convenient for first detecting head and second detecting head stretch into and surveys in the complicated structure.

In one embodiment, the cross-sectional area of the first probing tip is greater than the cross-sectional area of the second probing tip. The first detecting head is convenient to carry out distance detection in the transverse direction, and the second detecting head is convenient to carry out distance detection in the depth direction.

In one embodiment, the first probing tip is plate-shaped and is disposed on the second connecting arm along a radial direction of the needle body.

In one embodiment, the extending direction of the first probing tip is perpendicular to the extending direction of the second end of the second connecting arm.

In one embodiment, the second connecting arm is located at the middle of the first probing tip. Can survey two horizontal positions respectively through the first detecting head of second linking arm both sides, accurately obtain width size.

In one embodiment, the second probing tip is cylindrical, a first end of the second probing tip is connected to a side of the first probing tip away from the second connecting arm, and a second end of the second probing tip extends away from the first probing tip along the axial direction of the needle body. The second probe head can conveniently extend into the hole structure to detect the depth and the length.

In one embodiment, the first connecting arm has a first side close to the avoiding portion and a second side far from the avoiding portion, the second connecting arm has a first side facing the avoiding portion and a second side facing away from the avoiding portion along the radial direction of the needle body, and a relief portion is provided at a connection position of the second side of the second connecting arm and the second side of the first connecting arm, and the relief portion is spaced from the first detecting head. Let the setting up of position portion make first detecting head and second detecting head be close to more along the radial position of needle body and dodge the portion, be convenient for under the cooperation of dodging the portion, satisfy first detecting head and second detecting head better stretch into the special construction and survey.

In one embodiment, the relief portion is formed by obliquely cutting the second side of the second connecting arm toward the second side of the first connecting arm.

In one embodiment, at least one of the following features is also included: the first end of the needle body is provided with an external thread, so that the first end of the needle body can be in threaded connection with a clamping position of a machine tool; the first detecting head is arranged on one side of the second connecting arm far away from the avoiding part along the axial direction of the needle body; the needle body is provided with a screwing hole along the radial direction. The arrangement of the external thread enables the needle body to be more conveniently and stably arranged on a machine tool; the detection of the first detection head and the second detection head is facilitated, and the interference of the second connecting arm during detection is avoided; the needle body can be more conveniently and quickly rotatably mounted on the clamping position of the machine tool by the tool passing through the tightening hole.

Drawings

FIG. 1 is a schematic structural diagram of one embodiment of a probe of the present invention;

FIG. 2 is a schematic structural diagram of another embodiment of a probe of the present invention;

FIG. 3 is a schematic diagram of the detection state of the probe of the present invention in a specific application.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a probe; 11. a needle body; 111. an external thread; 112. screwing the hole; 12. a first connecting arm; 13. a second connecting arm; 14. a first probe head; 141. a first end face; 142. a first end top surface; 143. a first end bottom surface; 144. a second end face; 145. a second end top surface; 146. a second end bottom surface; 15. a second probe head; 151. a contact bottom surface; 152. a contact peripheral surface; 16. an avoidance part; 17. a relief portion; 18. a connecting portion.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

Referring to fig. 1, in an embodiment, a probe 1 includes a probe body 11, a first connecting arm 12, a second connecting arm 13, a first probing tip 14 and a second probing tip 15. The needle body 11 is cylindric, includes a first end and a second end, and the first end of needle body 11 and lathe clamp position fixed mounting, and the second end extends to the direction of keeping away from the lathe clamp position. The first connecting arm 12 includes a first end and a second end, the first end of the first connecting arm 12 is connected to the second end of the needle body 11, and the second end of the first connecting arm 12 extends away from the needle body 11 along the axial direction of the needle body 11. The second connecting arm 13 comprises a first end and a second end, the first end of the second connecting arm 13 is connected to the second end of the first connecting arm 12, and the second end of the second connecting arm 13 extends in the radial direction of the needle body 11. A relief portion 16 is formed between the second end of the needle body 11, the first connecting arm 12 and the second connecting arm 13. The first probing tip 14 is disposed on the second connecting arm 13. The second probe head 15 is arranged on a side of the first probe head 14 remote from the second attachment arm 13. The depth of the hole, the length of the waist-shaped hole and the like can be directly detected through the second detecting head 15, and due to the fact that the avoiding portion 16 is arranged, the first detecting head 14 and the second detecting head 15 can stretch into the slotted hole of the special structure, the width of the slotted hole is detected through the first detecting head 14, and the height of the slotted hole is detected through the cooperation of the first detecting head 14 or the first detecting head 14 and the second detecting head 15. Aforementioned probe 1 can be according to the structural characteristic and the required precision of product, realizes just can surveying the point of getting of a plurality of different positions of same structural feature by a probe 1 to reach the machining precision requirement, satisfy the drawing tolerance requirement. And, can reduce CNC lathe clamp position and material turnover, promote machining efficiency.

In one embodiment, the first end of the needle body 11 is provided with an external thread 111, and the needle body 11 is connected with a clamping thread of a machine tool through the external thread 111, so that the needle body 11 can be more conveniently and stably installed on the machine tool. Further, the needle body 11 is provided with a tightening hole 112 extending therethrough in the radial direction. When the needle body 11 is in threaded connection with the machine tool clamping position, a tool can penetrate through the screwing hole 112, and external force is applied to the tool, so that the tool drives the needle body 11 to be rotationally in threaded connection with the machine tool clamping position, and the needle body 11 can be more conveniently and rapidly rotationally mounted on the machine tool clamping position.

It will be appreciated that in an embodiment, the remaining portion of the second end of the needle body 11 may form the connected first and second connecting

arms

12, 13 and the relief 16 by cutting the second end of the cylindrical needle body 11. The escape portion 16 is substantially U-shaped.

In an embodiment, the first connecting arm 12 has a first side close to the avoiding part 16 and a second side far from the avoiding part 16, the first end of the first connecting arm 12 is located at the edge of the second end of the needle body 11, and the second side of the first connecting arm 12 is flush with the outer side surface of the needle body 11. The free part of the second end of the needle body 11 in the radial direction can be more concentrated, and the structure can ensure that a larger-range avoiding part 16 is formed among the second end of the needle body 11, the first connecting arm 12 and the second connecting arm 13, so that the first detecting head 14 and the second detecting head 15 can conveniently extend into a complex structure for detection.

Referring to fig. 1 and 2, in another embodiment, the second connecting arm 13 has a first side facing the avoiding portion 16 and a second side facing away from the avoiding portion 16 along the radial direction of the needle body 11. A yielding portion 17 is disposed at a connection position between the second side of the second connecting arm 13 and the second side of the first connecting arm 12, and the yielding portion 17 is spaced apart from the first probing tip 14 by a certain distance. The arrangement of the positioning portion 17 enables the first detecting head 14 and the second detecting head 15 to be closer to the avoiding portion 16 along the radial position of the needle body 11, so that the first detecting head 14 and the second detecting head 15 can better extend into a special structure to detect under the cooperation of the avoiding portion 16.

Referring to fig. 2, in particular, the relief portion 17 may be formed by cutting the second side of the second connecting arm 13 obliquely to the second side of the first connecting arm 12. Similarly, the outer corner connecting the first connecting arm 12 and the second connecting arm 13 is cut obliquely to form the receding portion 17, and the end portion of the first probing tip 14 and the first end of the second connecting arm 13 are cut to form the connecting portion 18 which is flush, and the connecting portion 18 is connected with the receding portion 17, so that the first probing tip 14 can be probed more conveniently and is not interfered. The inner corners where the first connecting arms 12 are connected with the second connecting arms 13 form an arc surface. The connecting corner between the first connecting arm 12 and the second connecting arm 13 is an inner corner close to the avoiding portion 16 and an outer corner far from the avoiding portion 16. Further, a plurality of curved surfaces are formed at the connection of the first end of the first connection arm 12 and the second end of the needle body 11 to increase the connection strength. The first connecting arm 12 and the second connecting arm 13 may be both long-strip-shaped and block-shaped, and each corner is chamfered.

In another embodiment, the cross-sectional area of the first probe head 14 is greater than the cross-sectional area of the second probe head 15. The first detection head 14 facilitates the distance detection in the lateral direction and the second detection head 15 facilitates the distance detection in the depth direction.

Referring to FIG. 1, in one embodiment, the first probing tip 14 is plate-shaped and extends along the radial direction of the needle body 11 and is disposed on the second connecting arm 13. Further, the first probing tip 14 is disposed on one side of the second connecting arm 13 away from the avoiding portion 16 along the axial direction of the needle body 11, the extending direction of the first probing tip 14 is perpendicular to the extending direction of the second end of the second connecting arm 13, and the second connecting arm 13 is located in the middle of the first probing tip 14. Can survey the two horizontal positions of groove structure of the work piece that awaits measuring respectively through the first detecting head 14 of second linking arm 13 both sides, accurate width size that obtains, the first detecting head 14 of second linking arm 13 both sides also can be convenient survey the degree of depth in the side groove of the work piece that awaits measuring. The first detecting head 14 is provided with the fillet along the two radial ends of the needle body 11, so that the contact area is smaller during detection, and the problem that the first detecting head 14 cannot abut to the widest position due to the arc-shaped structural surface of the workpiece to be detected to influence the detection accuracy is avoided.

Referring to fig. 1, in one embodiment, the second probing tip 15 is cylindrical, a first end of the second probing tip 15 is connected to a side of the first probing tip 14 away from the second connecting arm 13, and a second end of the second probing tip 15 extends away from the first probing tip 14 along the axial direction of the needle body 11. Facilitating the extension of the second probe head 15 into the bore-like structure for probing depth as well as length dimensions.

Referring to fig. 3, in practical applications, the first probing tip 14 has a first end and a second end, the first end of the first probing tip 14 includes a first end surface 141, a first end top surface 142 and a first end bottom surface 143, and the first end top surface 142 and the first end bottom surface 143 are respectively located on upper and lower sides of the first end surface 141. The second end of the first probe 14 includes a second end face 144, a second end top face 145 and a second end bottom face 146, and the second end top face 145 and the second end bottom face 146 are respectively located at the upper side and the lower side of the second end face 144. The second probing tip 15 includes a contact bottom surface 151 and a contact peripheral surface 152 formed by extending an outer periphery of the contact bottom surface 151 to one side.

During detection, the first end top surface 142 can be abutted against the inner top wall of the groove structure, the first end bottom surface 143 can be abutted against the inner bottom wall of the groove structure, the first end top surface 142 and the first end bottom surface 143 are matched to measure the up-down distance of the groove structure, or the second end top surface 145 can be abutted against the inner top wall of the groove structure, the second end bottom surface 146 is abutted against the inner bottom wall of the groove structure, and the second end top surface 145 and the second end bottom surface 146 are matched to measure the up-down distance of the groove structure; the first end face 141 is abutted with the first inner side wall of the groove structure, the second end face 144 is abutted with the second inner side wall of the groove structure, the first inner side wall and the second inner side wall are opposite in position and farthest in distance along the width direction of the groove structure, and the first end face 141 and the second end face 144 are matched to measure the width of the groove structure; measuring the depth of the hole by contacting the bottom surface 151 against the hole bottom wall; the contact circumferential surface 152 is abutted against the two opposite inner walls of the hole in the width direction, respectively, to measure the length of the hole.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A probe, comprising:

the first detecting head is arranged on the second connecting arm; and

the second detecting head is arranged on one side of the first detecting head, which is far away from the second connecting arm;

the first connecting arm is provided with a first side close to the avoiding part and a second side far away from the avoiding part, the second connecting arm is provided with a first side facing the avoiding part and a second side far away from the avoiding part along the radial direction of the needle body, a yielding part is arranged at the joint of the second side of the second connecting arm and the second side of the first connecting arm, and the yielding part is spaced from the first detecting head,

the end part of the first probe and the first end of the second connecting arm are cut to form a parallel and level connecting part, and the connecting part is connected with the abdicating part;

the second connecting arm dorsad the surface that connecting portion set up with the surperficial parallel and level of first detecting head, first detecting head has first end and second end, first end with the second end is separated the both sides of second connecting arm.

2. The probe of claim 1, wherein the first end of the first connecting arm is located at the edge of the second end of the needle body, and a side surface of the first connecting arm away from the avoiding portion is flush with the outer side surface of the needle body.

3. The probe of claim 1, wherein the cross-sectional area of the first probe head is greater than the cross-sectional area of the second probe head.

4. The probe of claim 3, wherein the first probing tip is plate-shaped and is disposed on the second connecting arm along a radial direction of the needle body.

5. The probe of claim 1, wherein the needle body is provided with a screw hole extending therethrough in a radial direction.

6. The probe of claim 5, wherein the second attachment arm is located in a central portion of the first probe head.

7. The probe of claim 3, wherein the second probing tip is cylindrical, and a first end of the second probing tip is connected to a side of the first probing tip away from the second connecting arm, and a second end of the second probing tip extends away from the first probing tip along the axial direction of the needle body.

8. The probe of claim 1, wherein a junction of the first end of the first connecting arm and the second end of the needle body is formed with a plurality of curved surfaces.

9. The probe of claim 8, wherein the relief is cut obliquely from the second side of the second connecting arm to the second side of the first connecting arm.

10. The probe of claim 1, further comprising at least one of the following features:

the first end of the needle body is provided with an external thread, so that the first end of the needle body can be in threaded connection with a clamping position of a machine tool;

the first detecting head is arranged on one side, far away from the avoiding part, of the second connecting arm in the axial direction of the needle body.