Disclosure of Invention
The invention aims to provide size measuring equipment to solve the problems that the size measured by a size measuring instrument in the prior art is the relative size between a measured surface and a reference surface, is influenced by the geometric shape of an object to be measured, has larger error and cannot measure the accurate size of the object to be measured.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a size measuring device, which is used for measuring the size of a piece to be measured, and comprises a machine table and a measuring device body, wherein the measuring device body is arranged on the machine table:
the clamping mechanism is used for clamping the piece to be measured;
the measuring mechanism comprises a measuring bracket, a first measuring instrument and a second measuring instrument, and the first measuring instrument and the second measuring instrument are both arranged on the measuring bracket in a vertically adjustable manner; the first measuring instrument and the second measuring instrument are arranged oppositely along the vertical direction;
and the driving end of the horizontal driving mechanism is connected with the measuring support and is used for driving the measuring support along the horizontal direction so that the to-be-measured piece can be positioned between the first measuring instrument and the second measuring instrument.
As an alternative of the dimension measuring apparatus, the first measuring instrument and the second measuring instrument are each provided with an external thread extending in the vertical direction, and the first measuring instrument and the second measuring instrument are respectively screwed to the measuring bracket through the external threads.
As an alternative of the size measuring apparatus, an avoidance groove is provided at an end of the measuring support close to the clamping mechanism, and the avoidance groove is used for avoiding the member to be measured.
As an alternative to the above size measuring apparatus, the first measuring instrument and the second measuring instrument are contact-type digital sensors.
As an alternative to the above size measuring apparatus, the above measuring mechanism further includes a scanner provided on the above measuring stand.
As an alternative of the size measuring apparatus, the horizontal driving mechanism includes a first electric cylinder sliding table and a second electric cylinder sliding table, and the first electric cylinder sliding table is disposed on the machine table; the driving end of the first electric cylinder sliding table is connected with the second electric cylinder sliding table and is used for driving the second electric cylinder sliding table to move along a first horizontal direction; and the driving end of the second electric cylinder sliding table is connected with the measuring support and is used for driving the measuring support to move along a second horizontal direction.
As an alternative to the size measuring apparatus, the horizontal driving mechanism further includes a linear rail, and the linear rail extends along the first horizontal direction and is disposed on the machine platform; the wire rail and the first electric cylinder sliding table are arranged oppositely along the second horizontal direction, and the second electric cylinder sliding table is arranged on the wire rail in a sliding mode along the first horizontal direction.
As an alternative to the above size measuring apparatus, the above gripping mechanism includes:
the clamping support is arranged on the machine table and provided with a clamping position in a penetrating manner along the vertical direction;
the clamping assembly comprises a positioning block, a side pushing block and a driving cylinder, and the positioning block and the driving cylinder are arranged on the clamping bracket; the driving end of the driving cylinder is connected with the side pushing block and used for driving the side pushing block along the horizontal direction, so that the side pushing block and the positioning block abut against and position the piece to be measured at the clamping position along the horizontal direction.
As an alternative of the above size measuring apparatus, the above clamping assembly includes a vacuum chuck, and the above vacuum chuck is disposed on the above clamping support and is used for adsorbing the above piece to be measured.
As an alternative of the size measuring apparatus, the clamping assembly further includes a height adjusting block, the height adjusting block is disposed on the clamping bracket, and the object to be measured can be placed on the height adjusting block; the height adjusting block is detachably connected to the clamping bracket.
The invention has the beneficial effects that:
the size measurement device comprises a machine table, and a clamping mechanism, a measuring mechanism and a horizontal driving mechanism which are arranged on the machine table. The clamping mechanism is used for clamping the piece to be measured so as to ensure the stability of the piece to be measured in the measuring process. The measuring mechanism comprises a measuring support, a first measuring instrument and a second measuring instrument, wherein the first measuring instrument and the second measuring instrument are arranged on the measuring support in an adjustable mode along the vertical direction, and the first measuring instrument and the second measuring instrument are arranged oppositely along the vertical direction, so that the first measuring instrument and the second measuring instrument can measure the size between two opposite points along the vertical direction. The driving end of the horizontal driving mechanism is connected with the measuring support and used for driving the measuring support along the horizontal direction, so that the to-be-measured piece can be located between the first measuring instrument and the second measuring instrument, automatic measurement of the to-be-measured piece is achieved, and detection and measurement efficiency is improved. Simultaneously, first measuring apparatu and second measuring apparatu are all adjustable along vertical direction to this size measuring equipment can measure the measuring object of equidimension not, and first measuring apparatu and second measuring apparatu measure the measuring object through two measuring points, therefore size measuring equipment does not receive the geometry influence of measuring the measuring object, can measure the measuring object accurately and measure the measuring object between the point.
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 the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Where the terms "first position" and "second position" are two different positions, and where a first feature is "over", "above" and "on" a second feature, the first feature is directly over and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
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.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
The present embodiment provides a dimension measuring apparatus for measuring a dimension of an object to be measured.
As shown in fig. 1 and 2, the dimension measuring device includes a machine table 1, and a clamping mechanism 2, a measuring mechanism 3, and a horizontal driving mechanism 4, which are disposed on the machine table 1. The clamping mechanism 2 is used for clamping the piece to be measured so as to ensure the stability of the piece to be measured in the measuring process. The measuring mechanism 3 includes a measuring support 31, a first measuring instrument 32 and a second measuring instrument 33, the first measuring instrument 32 and the second measuring instrument 33 are both arranged on the measuring support 31 along the vertical direction in an adjustable manner, and the first measuring instrument 32 and the second measuring instrument 33 are arranged oppositely along the vertical direction, so that the first measuring instrument 32 and the second measuring instrument 33 can measure the dimension between two opposite points along the vertical direction.
The driving end of the horizontal driving mechanism 4 is connected with the measuring support 31 and used for driving the measuring support 31 along the horizontal direction, so that the piece to be measured can be located between the first measuring instrument 32 and the second measuring instrument 33, the automatic measurement of the piece to be measured is further realized, and the detection and measurement efficiency is improved. Meanwhile, the first measuring instrument 32 and the second measuring instrument 33 are both adjustable in the vertical direction, so that the size measuring equipment can measure parts to be measured with different sizes, and the first measuring instrument 32 and the second measuring instrument 33 measure the parts to be measured through two measuring points, so that the size measuring equipment is not influenced by the geometric shape of the parts to be measured, and the size between points on the parts to be measured can be accurately measured. Alternatively, the object to be measured is a CNC (computer Numerical Control) machined product. Of course, the object to be measured may be other objects, and this embodiment is not particularly limited.
Specifically, the first measuring instrument 32 and the second measuring instrument 33 are provided with external threads extending in the vertical direction, the first measuring instrument 32 and the second measuring instrument 33 are respectively connected to the measuring bracket 31 through the external threads in a threaded manner, and then the distance between the first measuring instrument 32 and the second measuring instrument 33 can be adjusted by rotating the first measuring instrument 32 and the second measuring instrument 33, so that the measuring of the pieces to be measured with different sizes is realized. Wherein, the one end that measures support 31 and be close to fixture 2 is provided with dodges groove 311, dodges groove 311 and is used for dodging the volume of awaiting measuring to avoid measuring support 31 to produce the interference to the volume of awaiting measuring, influence the measurement of the volume of awaiting measuring. Optionally, the first measuring instrument 32 and the second measuring instrument 33 are both contact digital sensors, and then the two contact digital sensors can perform high-precision measurement on the size of the piece to be measured, so as to transmit the measurement information to a computer arranged on the machine table 1, perform real-time calculation on the data, and display the measurement information, thereby avoiding errors generated in the manual measurement operation process.
Further, the measuring mechanism 3 further comprises a scanner 34, wherein the scanner 34 is arranged on the measuring support 31 and used for scanning the piece to be measured in real time so as to identify the piece to be measured, and subsequent measurement is facilitated.
As shown in fig. 2, the horizontal driving mechanism 4 includes a first electric cylinder sliding table 41 and a second electric cylinder sliding table 42, the first electric cylinder sliding table 41 is disposed on the machine platform 1, and a driving end of the first electric cylinder sliding table 41 is connected to the second electric cylinder sliding table 42 for driving the second electric cylinder sliding table 42 to move along a first horizontal direction (i.e., an X direction in the drawing), and a driving end of the second electric cylinder sliding table 42 is connected to the measurement support 31 for driving the measurement support 31 to move along a second horizontal direction (i.e., a Y direction in the drawing), so that positions of the measurement support 31 in the horizontal direction can be adjusted through the first electric cylinder sliding table 41 and the second electric cylinder sliding table, and measurement of different positions on the to-be-measured piece by the first measuring instrument 32 and the second measuring instrument 33 is achieved. Meanwhile, the first electric cylinder sliding table 41 and the second electric cylinder sliding table 42 are high in precision during linear motion, the position of the measuring support 31 can be accurately controlled, and the measuring error of the first measuring instrument 32 and the second measuring instrument 33 during measurement of the piece to be measured is further reduced. The first horizontal direction, the second horizontal direction and the vertical direction are mutually perpendicular in pairs.
Further, horizontal drive mechanism 4 still includes line rail 43, and line rail 43 extends along first horizontal direction and locates on board 1, and line rail 43 sets up along the second horizontal direction with first electric cylinder slip table 41 relatively, and second electric cylinder slip table 42 slides along first horizontal direction and locates on line rail 43 to can support second electric cylinder slip table 42 jointly through line rail 43 and first electric cylinder slip table 41, further improve the stability of second electric cylinder slip table 42 along first horizontal direction removal in-process.
Further, fixture 2 includes centre gripping support 21 and clamping component 22, and centre gripping support 21 is located on board 1, and centre gripping support 21 runs through along vertical direction and is provided with centre gripping position 211, and the volume of awaiting measuring can be located centre gripping position 211 department, through setting up centre gripping position 211, can make things convenient for the tight location of clamp of the volume of awaiting measuring, avoids centre gripping support 21 to produce to be measured the volume of measuring and interferes. Wherein, clamping component 22 includes locating piece 221, side ejector pad 222 and drive actuating cylinder 223, locating piece 221 all locates on the centre gripping support 21 with drive actuating cylinder 223, drive actuating cylinder 223's drive end connection side ejector pad 222, be used for along horizontal direction drive side ejector pad 222, so that side ejector pad 222 and locating piece 221 are located centre gripping position 211 department with the butt of measuring piece along the horizontal direction, through this kind of locate mode, can make the upper and lower both ends of measuring piece expose, make things convenient for first measuring apparatu 32 and second measuring apparatu 33 to measure the piece of measuring. Optionally, the clamping assembly 22 comprises a plurality of clamping assemblies 22, and the stability of clamping and positioning the to-be-measured member at the clamping position 211 can be enhanced through the plurality of clamping assemblies 22. Further optionally, the clamping assembly includes a vacuum chuck 224, and the vacuum chuck 224 is disposed on the clamping support 21 and is used for adsorbing the to-be-measured object, so as to further improve the stability of positioning and clamping the to-be-measured object, and prevent the position of the to-be-measured object from being changed when the first measuring instrument 32 and the second measuring instrument 33 abut against the to-be-measured object.
Further, the centre gripping subassembly still includes height adjustment piece 225, and height adjustment piece 225 is located on centre gripping support 21, and the piece of awaiting measuring can be placed on height adjustment piece 225 to make height adjustment piece 225 can support the piece of awaiting measuring, height adjustment piece 225 can be dismantled simultaneously and connect on centre gripping support 21, and then through changing not height adjustment piece 225, in order to be applicable to the support to the piece of awaiting measuring of different geometry. Optionally, a plurality of height adjusting blocks 225 are provided, and the plurality of height adjusting blocks 225 are provided on the clamping bracket 21 around the clamping position 211, so as to adjust the level of the to-be-measured object by adjusting the heights of the plurality of height adjusting blocks 225.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.