CN216925498U

CN216925498U - Adjustable flexible device for three-coordinate system

Info

Publication number: CN216925498U
Application number: CN202121952222.5U
Authority: CN
Inventors: 刘斌; 王宏
Original assignee: Suzhou Dongwang Medical Equipment Co ltd
Current assignee: Suzhou Dongwang Medical Equipment Co ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-07-08
Anticipated expiration: 2031-08-19

Abstract

The utility model discloses an adjustable flexible device for three coordinates, which comprises a triangular coordinate fixing seat; the base which can lift and/or swing relative to the triangular coordinate fixing base is arranged on the triangular coordinate fixing base, and the bottom surface of the base is a plane; the base is driven by a driving mechanism with lifting and/or swinging motion, so that the base can lift and/or swing relative to the three-coordinate fixing base; the base is movably connected with three coordinates; the three-coordinate measuring device comprises a first measuring arm, a second measuring arm and a measuring head, wherein any part of the three-coordinate measuring device can rotate relative to other parts. The utility model has the advantages that: the measuring precision is high, the magnet adsorbs the base and the three-coordinate fixing seat, the stability and the complete attachment of the base and the three-coordinate fixing seat are ensured, and meanwhile, the accuracy of three-coordinate measuring data arranged on the base is ensured; the volume is small, the occupied area of the measuring head is adjusted by adjusting the included angle between the first measuring arm, the second measuring arm and the measuring head, the measuring head is suitable for products to be measured without sizes, the application range is enlarged, the three-coordinate structure is simplified, and the manufacturing cost is reduced.

Description

Adjustable flexible device for three-coordinate system

Technical Field

The utility model belongs to the technical field of machine manufacturing, and particularly relates to an adjustable flexible device for three coordinates.

Background

The three-coordinate measuring instrument (which is called three-coordinate measuring instrument in the utility model) is a measuring device widely used in the current industrial manufacturing industry, is an effective tool for detecting the size data of products and ensuring the quality of the products, and is also the most advanced intelligent detection tool at present. In particular to a large three-coordinate measuring instrument which is used for measuring various automobile body-in-white, sheet metal part assemblies, sub-assemblies and center control consoles.

The traditional three-coordinate measuring instrument moves in or out a product to be measured in a manual moving mode, but the three-coordinate measuring instrument has the risk of being collided by the manual moving mode, so that the measuring accuracy of the three-coordinate measuring instrument is influenced, and the three-coordinate measuring instrument is seriously damaged directly. In addition, the traditional three-coordinate measuring instrument is independently customized according to each product to be measured, only can be used for a single product, has no universality, and only can the tool be scrapped after the appearance of the product is changed. In addition, the traditional three-coordinate measuring instrument is provided with the detector which moves along three directions, the structure enables the occupied area to be larger, the detector needs to be arranged in each direction, the structure is complex, and the cost is increased.

In order to solve the above problems, it is an important technical problem to be solved by those skilled in the art to design an adjustable flexible device for three coordinates.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving the above problems of the prior art and to providing an adjustable flexible device for three-coordinate use.

The purpose of the utility model is realized by the following technical scheme:

an adjustable flexible device for three-coordinate comprises a triangular coordinate fixing seat; the triangular coordinate fixing seat is provided with a base which can lift and/or swing relative to the triangular coordinate fixing seat, and the bottom surface of the base is a plane; the base is driven by a driving mechanism with lifting and/or swinging motion, so that the base can lift and/or swing relative to the three-coordinate fixing base; the base is movably connected with three coordinates; the three-coordinate measuring device comprises a first measuring arm, a second measuring arm and a measuring head, wherein any part of the three-coordinate measuring device can rotate relative to other parts.

Preferably, the bottom end of the first measuring arm is movably connected with the base through a first pivot, and rotates around the first pivot within a rotation range of 0-180 °.

Preferably, the second measuring arm is movably connected with the top end of the first measuring arm through a second pivot; a first state in which the second measuring arm coincides with the first measuring arm; and in a second state, the second measuring arm rotates around the second pivot to be in the same straight line with the first measuring arm.

Preferably, the measuring head is located at the bottom end of the second measuring arm and is movably connected with the second measuring arm through a third pivot; the measuring head rotates around the third pivot.

Preferably, the sum of the lengths of the first measuring arm, the second measuring arm and the measuring head is greater than half of the width of the product to be measured.

Preferably, the bottom of the base is provided with a magnet which is adsorbed to the three-coordinate fixing seat, or the base magnet is made and is magnetically adsorbed to the three-coordinate fixing seat.

The technical scheme of the utility model has the advantages that:

the measuring precision is high, the driving mechanism is adopted to drive the three-coordinate to lift and/or swing relative to the three-coordinate fixing seat, automatic control is realized, the base and the three-coordinate fixing seat are adsorbed by the magnet during measurement, the base and the three-coordinate fixing seat are completely attached, the base is not easy to collide or damage, the stability of the base and the three-coordinate fixing seat is ensured, and the accuracy of three-coordinate measuring data arranged on the base is further ensured;

the volume is small, the occupied area of the measuring head is adjusted by adjusting the included angles between the first measuring arm, the second measuring arm and the measuring head, the measuring head is suitable for products to be measured without sizes, the application range is expanded, meanwhile, the three-coordinate structure is simplified, and the manufacturing cost is reduced;

the connecting piece has strong stability, the weight of the connecting piece is dispersed through the ejector rod and the group of guide rods arranged on the periphery of the ejector rod, and meanwhile, the connecting piece driven by the ejector rod cannot shake in the lifting process, so that the service lives of the ejector rod and the connecting plate are prolonged;

the movable annular flange measuring device is movable, adopts adjusting nuts to fix the distance between the base and the connecting arm, and then drives the base to swing relative to the three-coordinate fixing base through the joint bearing, so that the measuring requirements of annular flanges with different sizes are met.

Self-adaptation, every supporting angle that supports the base is adjusted through the support piece that sets up in the support base bottom is on the coplanar, keep balance, can adjust the distance between support base and the bottom surface according to the demand simultaneously, and self-adaptation nature is strong.

Drawings

FIG. 1: a first state elevation of a preferred embodiment of the present invention;

FIG. 2: a first state top view of a preferred embodiment of the present invention;

FIG. 3: a second state elevation of the preferred embodiment of the present invention;

FIG. 4: a second state top view of the preferred embodiment of the present invention;

FIG. 5: a three-coordinate architecture of a preferred embodiment of the present invention.

Detailed Description

Objects, advantages and features of the present invention will be illustrated and explained by the following non-limiting description of preferred embodiments. The embodiments are merely exemplary for applying the technical solutions of the present invention, and any technical solution formed by replacing or converting the equivalent thereof falls within the scope of the present invention claimed.

In the description of the schemes, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the embodiment, the operator is used as a reference, and the direction close to the operator is a proximal end, and the direction away from the operator is a distal end.

Referring to fig. 1 and 3, the present invention discloses an adjustable flexible device for three-coordinate system, which comprises a supporting base 1. The bottom of the supporting base 1 is provided with a supporting plate 41, and the supporting base 1 is stably placed through the supporting plate 41. In order to conveniently adjust the height of the supporting base 1, the supporting piece 4 is connected with the supporting plate 41 through a bolt, the supporting piece 4 can adjust the distance between the supporting plate 41 and the ground to meet the requirements of different heights, and meanwhile, the supporting plate 41 and the balance of the supporting base 1 are adjusted. In addition, for the convenience of conveying the supporting base 1, the supporting piece 4 can be set as a universal wheel, and the supporting base 1 can be moved quickly by the universal wheel.

The supporting base 1 is provided with a driving mechanism with lifting and/or swinging functions, the driving mechanism can be made of a robot or a linear module and the like, and the driving mechanism has the following structure: the device at least comprises a top rod 11 with the bottom end fixed on the supporting base 1 and a connecting piece 12 vertically connected with the top end of the top rod 11. The top rod 11 can be a telescopic rod with adjustable height, or a cylinder or a jack and other all the prior art which can realize height adjustment. The connecting piece 12 rotates relative to the supporting base 1 and is always perpendicular to the top rod 11.

In order to ensure that the connecting piece 12 is always balanced with the ejector rod 11 and synchronously ascends and descends with the ejector rod 11, simultaneously reduce the bearing of the ejector rod 11 and prolong the service life of the ejector rod 11, a guide rod 13 is arranged between the connecting piece 12 and the supporting base 1, and the guide rod 13 is positioned on the periphery of the ejector rod 11 and synchronously ascends and descends with the guide rod 13. The guide rod 13 is provided at its outer periphery with a sliding bearing for reducing friction, and the bottom surface of the sliding bearing is fixed to the upper surface of the support base 1. In addition, the guide rod 13 ensures that the ejector rod 11 cannot shake in the moving process, and the stability in the moving process is enhanced.

As shown in fig. 1, the connecting member 12 includes a connecting plate 121 and a connecting arm 122. A set of said guide rods 13 connects said connection plate 121 with said support base 1. The end of the connecting plate 121 connected to the connecting arm 122 is formed with a recess 120. At least one guide rod 13 penetrates through the groove 120, and the connecting arm 122 is sleeved on the periphery of the guide rod 13 penetrating through the groove 120 and is connected with the guide rod 13 through a bearing. The end of the connecting plate 121 away from the groove 120 can be used for placing a weight to keep the balance of the connecting member 12.

Specifically, as shown in fig. 2 and 4, a power source 141 for driving the connecting arm 122 to rotate is disposed on a side wall of the connecting plate 121, a power output end of the power source 141 is connected to a gear box 142, an output end of the gear box 142 is connected to an input end 1221 of the connecting arm 122 through a bevel gear, and drives the connecting arm 122 to rotate around the guide rod 13. In addition, the power source 141 may be a hand wheel, or a motor or other devices with a function of driving rotation disclosed in the prior art, which will not be described herein.

As shown in fig. 5, the output end 1222 of the connecting arm 122 is fixedly connected to a measuring mechanism by an adjusting nut 101, and the distance between the output end 1222 and the measuring mechanism is determined by the adjusting nut 101. In addition, a joint bearing 102 is arranged between the two, and the joint bearing 102 drives the measuring mechanism to swing or rotate. Specifically, a waist-shaped hole (not shown) is formed in a side wall of the base 21, and one end of the adjusting nut 101 is fixed in the waist-shaped hole and provides a moving space for the knuckle bearing 102 to drive the base 21 to rotate.

The measuring mechanism comprises a base 21 connected to the connecting arm of the connecting piece 12, and a three-coordinate system 22 arranged above the base 21. In order to ensure the accuracy of the measurement, the base 21 is preferably designed to be a plane, and the stability during the measurement process is also improved. The base 21 is located above the three-coordinate fixing base 23. The knuckle bearing 102 drives the base 21 to swing relative to the three-coordinate fixing base 23, that is, the knuckle bearing 102 and the adjusting nut 101 are located between the base 21 and the output end 1222. Therefore, when the top rod 11 is lifted, the connecting plate 121 and the connecting arm 122 are driven to lift, and further the base 21 and the three-coordinate 22 are driven to lift through the connecting arm 122, at this time, the base 21 is separated from the triangular coordinate fixing seat 23 against the magnetic force; on the contrary, when the push rod 11 descends, the connecting plate 121 and the connecting arm 122 are driven to descend, and then the base 21 is driven to descend through the connecting arm 122 until the base 21 is adsorbed on the upper surface of the three-coordinate fixing seat 23.

As shown in fig. 5, the three-dimensional coordinate system 22 includes a first measuring arm 221, a second measuring arm 222, and a measuring head 223. The bottom end of the first measuring arm 221 is movably connected with the base 21 through a first pivot 211; the top end of the first measuring arm 221 is connected with the top end of the second measuring arm 222 through a second pivot 212; the bottom end of the second measuring arm 222 is movably connected with the measuring head 223 through a third pivot shaft 213. According to the size of the annular flange, the included angles between the first measuring arm 221 and the base 21, between the first measuring arm 221 and the second measuring arm 222, and between the second measuring arm 222 and the measuring head 223 are adjusted through the second pivot 211, the second pivot 212 and the third pivot 213. It can be seen that the sum of the lengths of the first measuring arm 221, the second measuring arm 222 and the measuring head 223 is greater than half of the width of the product to be measured (annular flange), and in the present invention, the sum of the lengths of the three arms is greater than half of the length of the fixing frame 3 and less than the length of the fixing frame 3.

As shown in fig. 1 to 5, a fixing frame 3 is disposed at the periphery of the three-coordinate fixing seat 23, the fixing frame 3 is used for placing a flange (preferably, an annular flange), and the fixing frame 3 and the three-coordinate fixing seat 23 are coaxially disposed, so that the annular flange is ensured to be coaxial with the base 21 in the measurement process, and the annular flange is ensured to be uniformly stressed and not to be inclined, thereby ensuring the accuracy of the measurement result. In addition, in order to facilitate adjustment or transport of the holder 3, a height-adjustable adjustment support, or universal wheel, is provided at the bottom thereof.

The working process of the utility model is briefly described as follows:

s1: a balancing weight matched with the weight of the base 21 and the three-coordinate 22 is placed at one end of the connecting plate 121 far away from the connecting arm 122, and the connecting piece 12 is perpendicular to the ejector rod 11;

s2: the mandril 11 is lifted upwards to sequentially drive the connecting plate 121, the connecting arm 122 and the base 21 to synchronously move upwards until the base 21 overcomes the magnetic force and is separated from the three-coordinate fixing seat 23;

s3: starting a power source 141 to drive the connecting arm 122 to rotate around the guide rod 13, so that the base 21 is far away from the three-coordinate fixing seat 23;

s4: placing an annular flange on a fixed frame 3, and enabling the annular flange to be coaxial with the fixed frame 3;

s5: the power source 141 is started again, and the connecting arm 122 is driven to drive the base 21 to rotate to the upper part of the annular flange;

s6: the mandril 11 moves downwards to sequentially drive the connecting plate 121, the connecting arm 122 and the base 21 to descend synchronously until the base 21 is adsorbed to the three-coordinate fixing seat 23;

s7: adjusting included angles between the first measuring arm 221 and the base 21, between the second measuring arm 222 and the first measuring arm 221, and between the measuring head 223 and the second measuring arm 222 on the three-coordinate system 22 until the tip of the measuring head 223 contacts with the upper surface of the annular flange and/or the profile of the annular flange, and obtaining the height of the annular flange at the first measuring point or the distance between the first measuring arm 221 and the second measuring arm 222;

s8: starting the power source 141 again, driving the base 21 and the three-coordinate rotation around the guide rod 13, translating to a second measuring point, and measuring the height of the annular flange at the point or the distance between the first measuring arm 221 and the second measuring arm 222;

s9: repeating S8 for several times to obtain data of multiple measuring points;

s10: and according to the data of the plurality of measuring points, obtaining the end surface flatness and the circular opening profile of the annular flange, and further obtaining whether the annular flange is qualified.

During measurement, the knuckle bearing 102 may drive the base 21 to rotate around its rotation point, and at this time, the knuckle bearing 102 is preferably adjusted to a position coaxial with the three-coordinate fixing seat 23. The three-coordinate system 22 is driven to do circular motion by the rotation of the knuckle bearing 102, so that the circular opening profile of the annular flange can be conveniently measured.

The utility model has various embodiments, and all technical solutions formed by adopting equivalent transformation or equivalent transformation are within the protection scope of the utility model.

Claims

1. An adjustable flexible device for three-coordinate use, characterized in that: comprises a three-coordinate fixed seat (23); a base (21) is arranged on the three-coordinate fixing seat (23), and the bottom surface of the base (21) is a plane; the base (21) is driven by a driving mechanism with lifting and/or swinging motion, so that the base can lift and/or swing relative to the three-coordinate fixing base (23); the base (21) is movably connected with a three-coordinate (22); the three-coordinate measuring device (22) is composed of a first measuring arm (221), a second measuring arm (222) and a measuring head (223), and any part of the three-coordinate measuring device (22) can rotate relative to other parts.

2. An adjustable flexible apparatus for three coordinates as defined in claim 1, wherein: the bottom end of the first measuring arm (221) is movably connected with the base (21) through a first pivot (211) and rotates around the first pivot (211) within a range of 0-180 degrees.

3. An adjustable flexible apparatus for three coordinates as defined in claim 2, wherein: the second measuring arm (222) is movably connected with the top end of the first measuring arm (221) through a second pivot (212); a first state, the second measuring arm (222) coinciding with the first measuring arm (221); in a second state, the second measuring arm (222) is rotated about the second pivot (212) to be in line with the first measuring arm (221).

4. An adjustable flexible apparatus for three coordinates, as defined in claim 3, wherein: the measuring head (223) is positioned at the bottom end of the second measuring arm (222) and is movably connected with the second measuring arm (222) through a third pivot (213); the probe (223) rotates about the third pivot (213).

5. An adjustable flexible apparatus for three coordinates as defined in claim 4, wherein: the sum of the lengths of the first measuring arm (221), the second measuring arm (222) and the measuring head (223) is larger than half of the width of a product to be measured.

6. An adjustable flexible apparatus for three coordinates, as defined in claim 5, wherein: the bottom of the base (21) is provided with a magnet which is adsorbed by the three-coordinate fixing seat (23), or the base (21) is made of the magnet and is magnetically adsorbed by the three-coordinate fixing seat (23).