CN111121694A - Three-coordinate measuring clamp and measuring method - Google Patents
Three-coordinate measuring clamp and measuring method Download PDFInfo
- Publication number
- CN111121694A CN111121694A CN201911393148.5A CN201911393148A CN111121694A CN 111121694 A CN111121694 A CN 111121694A CN 201911393148 A CN201911393148 A CN 201911393148A CN 111121694 A CN111121694 A CN 111121694A
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- Prior art keywords
- sliding
- positioning mechanism
- measuring
- gear
- coordinate measuring
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/04—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/04—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
- G01B21/047—Accessories, e.g. for positioning, for tool-setting, for measuring probes
Abstract
The invention discloses a three-coordinate measuring fixture which comprises a base, a workbench, a frame body, a measuring machine, a sliding mechanism, an adjusting mechanism, a positioning mechanism and a pressing mechanism, wherein the workbench is arranged on the base, the adjusting mechanism is connected with the frame body in a sliding mode through the sliding mechanism, the adjusting mechanism comprises an adjusting cylinder, a ball screw, a moving assembly, a spring and a supporting frame, the moving assembly comprises a moving shell, a first gear, a second gear and a driving motor, the spring is positioned at the lower portion of the moving assembly and sleeved on the outer side of the ball screw, the lower end of the spring is connected with the pressing mechanism, and the positioning mechanism comprises a first positioning mechanism and a second positioning mechanism which are arranged oppositely. The invention aims to provide a three-coordinate measuring clamp, which can realize rapid positioning and alignment of a workpiece before detection and ensure that the detection result is accurate and real; the device can also realize quick up-down of batch products without alignment, directly run a detection program for measurement, and greatly improve the efficiency.
Description
Technical Field
The invention relates to the technical field of clamps, in particular to a three-coordinate measuring clamp and a measuring method.
Background
Three-coordinate measurement is widely used in various departments of machine manufacturing industry, automobile industry, electronic industry, aerospace industry, national defense industry and the like, has an important role in development and detection of products, and becomes indispensable measurement equipment for modern industrial measurement and quality control. Within the scope of application, three-dimensional measurements also cover substantially mechanical parts and electronic components and tolerances of various shapes and positions. In the process of reverse development of products, three-coordinate measurement enables scientific researchers to quickly obtain coordinate parameters of reference products, and data support is provided for reverse development. The three-coordinate measurement enables scientific researchers to obtain whether the produced product is the same as the designed product or not and whether the produced product is within an error allowable range or not in the product detection. Three-coordinate measurement is to detect whether part machining meets the drawing dimension requirement, and every position to be detected needs to be measured absolutely and accurately, but the deviation of the detection result is caused because the placement of workpieces is not standard and uniform, so that a clamp for realizing rapid positioning of parts before detection is needed. The existing three-coordinate clamp is low in clamping speed, and cannot accurately position a workpiece well, so that measurement is not accurate enough.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a three-coordinate measuring fixture and a measuring method, which can realize rapid positioning and alignment of workpieces before detection, and also can realize rapid loading and unloading of batch products without alignment, and directly run a detection program for measurement, thereby greatly improving efficiency.
The technical scheme adopted by the invention for solving the technical problems is as follows: a three-coordinate measuring clamp comprises a base, a workbench, a frame body, a measuring machine, a sliding mechanism, an adjusting mechanism, a positioning mechanism and a pressing mechanism, wherein the workbench is arranged on the base, the adjusting mechanism is connected with the frame body in a sliding manner through the sliding mechanism, the adjusting mechanism comprises an adjusting cylinder, a ball screw, a moving assembly, a spring and a supporting frame, the ball screw is fixedly connected with the supporting frame, the moving assembly comprises a moving shell, a first gear, a second gear and a driving motor, a power input shaft is rotatably arranged on the moving shell, one end of the power input shaft extends out of the moving shell and is connected with the driving motor, the other end of the power input shaft is fixedly connected with the first gear, the second gear is meshed with the first gear, a ball screw nut matched with the second gear is rotatably arranged in the moving shell, rotationally install in removing the shell with ball nut complex ball, the spring is located and removes subassembly lower part cover and establish in the ball outside, hold-down mechanism is connected to the spring lower extreme, positioning mechanism includes relative first positioning mechanism and the second positioning mechanism who sets up, first positioning mechanism includes first mounting panel and locating component, second positioning mechanism includes second mounting panel and locating component, locating component includes die clamping cylinder, chuck, connecting rod, die clamping cylinder passes through the connecting rod and is connected with the chuck transmission, be equipped with a plurality of supporting components on first mounting panel and the second mounting panel, it is a plurality of supporting component includes cylindric supporting seat, runs through and the bolt of adjustable setting with the supporting seat.
Further, the rack body includes two fixed blocks connected with the base, sets up the dead lever in the fixed block both sides and sets up the fixing base at the dead lever top, fixing base and dead lever fixed connection.
Furthermore, slide mechanism includes slide rail and slider, the slide rail is fixed to be set up on the fixing base, the slider sets up in the one side that adjustment mechanism is close to the frame body, slider and slide rail sliding connection.
Furthermore, hold-down mechanism includes compact heap and connecting block, connecting block and spring bottom fixed connection, compact heap and connecting block fixed connection.
Furthermore, first mounting panel is "L" type and with workstation fixed connection.
Further, the second mounting panel includes long limit portion and short limit portion, short limit portion and workstation parallel arrangement just fix at the workstation upper surface, long limit portion has the contained angle with the workstation.
Furthermore, a plurality of supporting components are fixedly connected with the first mounting plate and the second mounting plate and are positioned between the positioning components.
Furthermore, a limit screw is arranged between the slide rails, and the number of the limit screws is two.
To achieve the above object, according to a second aspect of the present invention, there is also provided a three-coordinate measuring jig measuring method using the three-coordinate measuring jig as described above, the three-coordinate measuring jig measuring method including the steps of:
s1: before measurement, clamping a part to be measured on a first positioning mechanism and a second positioning mechanism on a workbench, fixing according to clamping requirements, placing the part to be measured on a supporting assembly, preliminarily supporting and fixing the part to be measured through a bolt, and driving a chuck to clamp the part to be measured through a connecting rod by a clamping cylinder;
s2: the adjusting mechanism is subjected to position adjustment through the sliding mechanism, the spring is compressed through downward movement of the moving assembly, the connecting block and the pressing block are further driven to move downwards, a workpiece fixed on the workbench is pressed, and rapid fastening is completed;
s3; starting the measuring machine, calling a set measuring program in the measuring machine, and executing a measuring action until the measurement of the first type of parts to be measured is completed;
s4: and then, according to the steps, quickly switching to continuously measure other parts to be measured.
The invention has the advantages that:
the invention aims to provide a three-coordinate measuring clamp, which is characterized in that a base, a workbench, a frame body, a measuring machine, a sliding mechanism, an adjusting mechanism, a positioning mechanism and a pressing mechanism are arranged, acting force is applied to a spring through the lifting of a moving assembly, so that the pressing mechanism fixedly connected with the spring presses a workpiece, specifically, the moving assembly moves downwards to compress the spring, and further, a connecting block and a pressing block are driven to move downwards to press the workpiece fixed on the workbench; when the moving assembly moves upwards to extend the spring, the connecting block and the pressing block are driven to move upwards to release the workpiece fixed on the workbench, and the workpiece can be quickly positioned and aligned before detection, so that the detection result is accurate and real; the device can also realize quick up-down of batch products without alignment, directly run a detection program for measurement, and greatly improve the efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the adjusting mechanism of the present invention.
Fig. 3 is a schematic structural diagram of a first positioning mechanism of the present invention.
Fig. 4 is a schematic structural diagram of a second positioning mechanism of the present invention.
Fig. 5 is a schematic structural diagram of the support assembly of the present invention.
Wherein:
1. a base; 2. a work table; 3. a fixed block; 4. fixing the rod; 5. a fixed seat; 6. a slide rail; 7. an adjustment mechanism; 71. an adjusting cylinder; 72. a ball screw; 73. a spring; 74. a support frame; 75. moving the housing; 76. a drive motor; 77. a first gear; 78. a second gear; 8. a compression block; 9. connecting blocks; 10. a first positioning mechanism; 101. a first mounting plate; 102. a clamping cylinder; 103. a support assembly; 1031. a supporting seat; 1032. a bolt; 104. a connecting rod; 105. a chuck; 11. a second positioning mechanism; 111. a second mounting plate; 1111. a short-side portion; 1112. a long side portion; 12. a limit screw;
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "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 device or element being 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 present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the three-coordinate measuring fixture comprises a base 1, a workbench 2, a frame body, a measuring machine, a sliding mechanism, an adjusting mechanism 7, a positioning mechanism and a pressing mechanism, wherein the workbench 2 is arranged on the base 1, and the adjusting mechanism 7 is connected with the frame body in a sliding manner through the sliding mechanism.
The rack body comprises two fixed blocks 3 connected with the base 1, fixed rods 4 arranged on two sides of the fixed blocks 3 and a fixed seat 5 arranged at the top of the fixed rod 4, wherein the fixed seat 5 is fixedly connected with the fixed rods 4.
The sliding mechanism comprises a sliding rail 6 and a sliding block, the sliding rail 6 is fixedly arranged on the fixing seat 5, the sliding block is arranged on one side, close to the rack body, of the adjusting mechanism 7, and the sliding block is connected with the sliding rail 6 in a sliding mode.
As shown in fig. 2, the adjusting mechanism 7 includes an adjusting cylinder 71, a ball screw 72, a moving assembly, a spring 73 and a support frame 74, the ball screw 72 is fixedly connected with the support frame 74, the moving assembly includes a moving housing 75, a first gear 77, a second gear 78 and a driving motor 76, the moving housing 75 is rotatably installed with a power input shaft, one end of the power input shaft extends out of the moving housing 75 and is connected with the driving motor 76, the other end of the power input shaft is fixedly connected with the first gear 77, the second gear 78 is engaged with the first gear 77, a ball screw 72 nut engaged with the second gear 78 is rotatably installed in the moving housing 75, the ball screw 72 engaged with the ball screw 72 nut is rotatably installed in the moving housing 75, the power input shaft is driven by the driving motor 76, so that the rotation of the power input shaft drives the first gear 77 to rotate, thereby driving the second gear 78 to rotate and further driving the nut of the ball screw 72 to rotate, so that the ball screw 72 rotates while having axial displacement, thereby completing the lifting operation.
The spring 73 is positioned at the lower part of the moving assembly and sleeved on the outer side of the ball screw 72, the lower end of the spring 73 is connected with a pressing mechanism, the pressing mechanism comprises a pressing block 8 and a connecting block 9, the connecting block 9 is fixedly connected with the bottom end of the spring 73, and the pressing block 8 is fixedly connected with the connecting block 9.
Acting force is applied to the spring 73 through the lifting of the moving assembly, so that the pressing mechanism fixedly connected with the spring 73 presses the workpiece, specifically, the moving assembly moves downwards to compress the spring 73, so as to drive the connecting block 9 and the pressing block 8 to move downwards to press the workpiece fixed on the workbench 2; when the moving assembly moves upwards, the spring 73 is extended, and then the connecting block 9 and the pressing block 8 are driven to move upwards to release the workpiece fixed on the workbench 2.
Positioning mechanism is including relative first positioning mechanism 10 and the second positioning mechanism 11 that sets up, first positioning mechanism 10 includes first mounting panel 101 and locating component, first mounting panel 101 be "L" type and with workstation 2 fixed connection.
The positioning assembly comprises a clamping cylinder 102, a clamping head 105 and a connecting rod 104, wherein the clamping cylinder 102 is in transmission connection with the clamping head 105 through the connecting rod 104.
The part to be measured is positioned by the first positioning mechanism 10 and the second positioning mechanism 11, and the clamping cylinder 102 is used for driving the clamping head 105 to clamp the part to be measured through the connecting rod 104.
A plurality of supporting components 103 are arranged on the first mounting plate 101 and the second mounting plate 111, the supporting components 103 comprise a cylindrical supporting seat 1031 and a bolt 1032 which penetrates through the supporting seat 1031 and is arranged in an adjustable manner, the supporting seat 1031 is of a coaxial step-shaped structure, and each table top is a conical surface.
The supporting components 103 are fixedly connected with the first mounting plate 101 and the second mounting plate 111 and are located between the positioning components.
In this embodiment, two limit screws 12 are arranged between the slide rails 6.
All the driving parts (referring to power elements), the electric devices and the adaptive power supply are connected through leads, and specific connecting means refer to the following working principle that the electric devices are electrically connected in sequence.
To achieve the above object, according to a second aspect of the present invention, there is also provided a three-coordinate measuring jig measuring method using the three-coordinate measuring jig as described above, the three-coordinate measuring jig measuring method including the steps of:
s1: before measurement, clamping a part to be measured on a first positioning mechanism and a second positioning mechanism on a workbench, fixing according to clamping requirements, placing the part to be measured on a supporting assembly, preliminarily supporting and fixing the part to be measured through a bolt, and driving a chuck to clamp the part to be measured through a connecting rod by a clamping cylinder;
s2: the adjusting mechanism is subjected to position adjustment through the sliding mechanism, the spring is compressed through downward movement of the moving assembly, the connecting block and the pressing block are further driven to move downwards, a workpiece fixed on the workbench is pressed, and rapid fastening is completed;
s3; starting the measuring machine, calling a set measuring program in the measuring machine, and executing a measuring action until the measurement of the first type of parts to be measured is completed;
s4: and then, according to the steps, quickly switching to continuously measure other parts to be measured.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A three-coordinate measuring clamp is characterized by comprising a base, a workbench, a frame body, a measuring machine, a sliding mechanism, an adjusting mechanism, a positioning mechanism and a pressing mechanism, wherein the workbench is arranged on the base, the adjusting mechanism is in sliding connection with the frame body through the sliding mechanism, the adjusting mechanism comprises an adjusting cylinder, a ball screw, a moving assembly, a spring and a supporting frame, the ball screw is fixedly connected with the supporting frame, the moving assembly comprises a moving shell, a first gear, a second gear and a driving motor, a power input shaft is rotatably arranged on the moving shell, one end of the power input shaft extends out of the moving shell and is connected with the driving motor, the other end of the power input shaft is fixedly connected with the first gear, the second gear is meshed with the first gear, a ball screw nut matched with the second gear is rotatably arranged in the moving shell, rotationally install in removing the shell with ball nut complex ball, the spring is located and removes subassembly lower part cover and establish in the ball outside, hold-down mechanism is connected to the spring lower extreme, positioning mechanism includes relative first positioning mechanism and the second positioning mechanism who sets up, first positioning mechanism includes first mounting panel and locating component, second positioning mechanism includes second mounting panel and locating component, locating component includes die clamping cylinder, chuck, connecting rod, die clamping cylinder passes through the connecting rod and is connected with the chuck transmission, be equipped with a plurality of supporting components on first mounting panel and the second mounting panel, it is a plurality of supporting component includes cylindric supporting seat, runs through and the bolt of adjustable setting with the supporting seat.
2. The three-coordinate measuring fixture as claimed in claim 1, wherein the frame body comprises two fixing blocks connected with the base, fixing rods arranged at both sides of the fixing blocks, and fixing seats arranged at tops of the fixing rods, and the fixing seats are fixedly connected with the fixing rods.
3. The three-coordinate measuring fixture as claimed in claim 1, wherein the sliding mechanism includes a sliding rail and a sliding block, the sliding rail is fixedly disposed on the fixing base, the sliding block is disposed on a side of the adjusting mechanism close to the frame body, and the sliding block is slidably connected to the sliding rail.
4. The three-coordinate measuring fixture as claimed in claim 1, wherein the pressing mechanism comprises a pressing block and a connecting block, the connecting block is fixedly connected with the bottom end of the spring, and the pressing block is fixedly connected with the connecting block.
5. A three coordinate measurement fixture according to claim 1 wherein the first mounting plate is "L" shaped and is fixedly attached to the table.
6. A three coordinate measuring fixture according to claim 1 wherein the second mounting plate includes a long side portion and a short side portion, the short side portion being disposed parallel to and secured to the table and the long side portion being angled with respect to the table.
7. A three coordinate measurement fixture according to claim 1 wherein a plurality of the support members are fixedly connected to the first mounting plate and the second mounting plate and are positioned between a plurality of the positioning members.
8. The three-coordinate measuring fixture of claim 1, wherein two limiting screws are arranged between the slide rails.
9. A three-coordinate measuring clamp measuring method is characterized in that: use of a three coordinate measuring jig according to any of claims 1 to 8, the three coordinate measuring jig measuring method comprising the steps of:
s1: before measurement, clamping a part to be measured on a first positioning mechanism and a second positioning mechanism on a workbench, fixing according to clamping requirements, placing the part to be measured on a supporting assembly, preliminarily supporting and fixing the part to be measured through a bolt, and driving a chuck to clamp the part to be measured through a connecting rod by a clamping cylinder;
s2: the adjusting mechanism is subjected to position adjustment through the sliding mechanism, the spring is compressed through downward movement of the moving assembly, the connecting block and the pressing block are further driven to move downwards, a workpiece fixed on the workbench is pressed, and rapid fastening is completed;
s3; starting the measuring machine, calling a set measuring program in the measuring machine, and executing a measuring action until the measurement of the first type of parts to be measured is completed;
s4: and then, according to the steps, quickly switching to continuously measure other parts to be measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911393148.5A CN111121694A (en) | 2019-12-30 | 2019-12-30 | Three-coordinate measuring clamp and measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911393148.5A CN111121694A (en) | 2019-12-30 | 2019-12-30 | Three-coordinate measuring clamp and measuring method |
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| Publication Number | Publication Date |
|---|---|
| CN111121694A true CN111121694A (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911393148.5A Pending CN111121694A (en) | 2019-12-30 | 2019-12-30 | Three-coordinate measuring clamp and measuring method |
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| CN (1) | CN111121694A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112547839A (en) * | 2020-11-18 | 2021-03-26 | 中机试验装备股份有限公司 | Double-screw loading horizontal movement measuring mechanism |
| CN112762834A (en) * | 2021-01-11 | 2021-05-07 | 天津大学 | Multifunctional on-line detection equipment |
| CN113566679A (en) * | 2021-07-21 | 2021-10-29 | 华天科技（西安）有限公司 | Device for measuring frame warpage |
| CN115194516A (en) * | 2022-08-18 | 2022-10-18 | 上海中车瑞伯德智能系统股份有限公司 | Device and method for automatically adjusting posture of large part |
-
2019
- 2019-12-30 CN CN201911393148.5A patent/CN111121694A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112547839A (en) * | 2020-11-18 | 2021-03-26 | 中机试验装备股份有限公司 | Double-screw loading horizontal movement measuring mechanism |
| CN112762834A (en) * | 2021-01-11 | 2021-05-07 | 天津大学 | Multifunctional on-line detection equipment |
| CN113566679A (en) * | 2021-07-21 | 2021-10-29 | 华天科技（西安）有限公司 | Device for measuring frame warpage |
| CN115194516A (en) * | 2022-08-18 | 2022-10-18 | 上海中车瑞伯德智能系统股份有限公司 | Device and method for automatically adjusting posture of large part |
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