Dimension measuring device

Abstract

The invention discloses a dimension measuring device, and relates to the technical field of dimension measurement, the dimension measuring device comprises a machine table, a positioning piece, a fixing piece and a measuring piece, a positioning groove is formed in the positioning piece, the positioning groove is used for being in positioning fit with a to-be-measured product, the fixing piece is used for fixing the to-be-measured product, and the measuring piece is used for measuring the dimension of the to-be-measured product. The positioning piece and the fixing piece are arranged in a relatively movable manner, so that the to-be-measured product can be separated from the positioning groove after being positioned, and the measuring piece is mounted on the machine table and is used for measuring the size of the to-be-measured product. The technical scheme provided by the invention aims to improve the efficiency of measuring the size of the special-shaped product.

Description

Technical Field

[0001] This invention relates to the field of dimensional measurement technology, and in particular to a dimensional measurement device. Background Technology

[0002] In related technologies, optical measurement methods are commonly used to inspect the dimensions of products. However, for irregularly shaped products, due to their complex geometric features and lack of clear physical benchmarks or reference points, it is difficult to directly obtain an effective measurement benchmark. Therefore, during the measurement process, it is usually necessary to pre-establish a coordinate system or fit a reference benchmark through software algorithms to calculate relevant dimensional parameters. This method not only involves a complex measurement process but also places high demands on the accuracy and stability of image processing algorithms and measurement software, thus affecting measurement efficiency. Summary of the Invention

[0003] The main objective of this invention is to provide a size measuring device that aims to improve the efficiency of size measurement for irregularly shaped products.

[0004] To achieve the above objectives, the dimension measuring device proposed in this invention includes: Machine tool; A positioning element having a positioning groove, the positioning groove being used for positioning and engaging with the product to be measured; A fixing member for securing the product to be measured; the positioning member and the fixing member are movably arranged relative to each other, allowing the product to be measured to disengage from the positioning groove after positioning; and A measuring element, mounted on the machine tool, is used to measure the dimensions of the product to be measured.

[0005] In one embodiment, the fixing member includes a suction cup, the upper surface of which has an adsorption surface.

[0006] In one embodiment, the fastener is fixedly installed on the machine base and is positioned opposite to the positioning groove.

[0007] In one embodiment, the positioning element is movably connected to the machine tool in the Z direction.

[0008] In one embodiment, the size measuring device further includes a stop member disposed below the positioning member. A mating portion is fixedly provided on the lower side of the positioning member. At least one of the stop member and the mating portion is provided with a pushing inclined surface. The pushing inclined surface is inclined relative to the vertical direction. The stop member is movably disposed in the X direction.

[0009] In one embodiment, the abutting member is provided with the abutting inclined surface, a first positioning plane and a second positioning plane, the first positioning plane and the second positioning plane being respectively distributed on opposite sides of the abutting inclined surface in the X direction, and the second positioning plane being higher than the first positioning plane.

[0010] In one embodiment, the abutting member is provided with a blocking portion, and when the mating portion abuts against the blocking portion, it also abuts against the first positioning plane.

[0011] In one embodiment, the size measuring device further includes a stop portion fixed to the machine base, wherein when the abutting member abuts against the stop portion, the mating portion abuts against the second positioning plane.

[0012] In one embodiment, the size measuring device further includes a drive rod fixed to the side of the abutment located in the X direction and extending along the X direction.

[0013] In one embodiment, the abutting member is provided with a plurality of abutting inclined surfaces, and the mating part is provided with a plurality of corresponding abutting surfaces.

[0014] In one embodiment, the size measuring device includes a first guide rail extending along the Z direction, the positioning element includes a support plate and a positioning plate mounted on the upper side of the support plate, the support plate is slidably connected to the first guide rail in the Z direction, the positioning groove is provided on the positioning plate, and the mounting direction of the positioning plate on the support plate is adjustable.

[0015] In one embodiment, the support plate is provided with at least two sets of fastening holes arranged in different directions, and the positioning plate is fitted into one of the sets of fastening holes by means of fasteners.

[0016] In one embodiment, the measuring element is configured as a contact measuring tool, and the measuring element is movably mounted on the machine tool.

[0017] In one embodiment, the measuring element includes a caliper body and a vernier portion, the vernier portion being movably fitted onto the caliper body in the X direction.

[0018] In one embodiment, the dimensional measuring device includes a second guide rail extending in the X direction and a third guide rail extending in the Y direction. The caliper body and the vernier portion are slidably connected to the second guide rail in the X direction, and the second guide rail is slidably connected to the third guide rail in the Y direction.

[0019] In the technical solution of this invention, the contour of the positioning groove matches the contour of the product to be measured, enabling the product to achieve physical reference positioning after being placed in the positioning groove. This positioning method does not rely on image recognition algorithms to fit a coordinate system, providing stable and reproducible spatial attitude constraints for measurement. After the product to be measured completes its initial positioning, when the fixing component is used to fix the product, relative movement occurs between the fixing component and the positioning component, causing the product to detach from the positioning groove and become fully exposed, eliminating the obstruction of the positioning structure and creating an interference-free measurement environment for subsequent dimensional measurements. During the process of the product to be measured detaching from the positioning groove, and during the measurement process after the product detaches from the positioning groove, the fixing component prevents the product to be measured from shifting, ensuring that the product maintains its initial positioning state after detaching from the positioning groove, thereby guaranteeing the continuity of the measurement process and the accuracy and reliability of the results. Therefore, the technical solution of this invention reduces the high dependence of traditional optical measurement on software algorithms, simplifies the measurement process, and improves measurement efficiency, making it particularly suitable for dimensional measurement scenarios of irregularly shaped products or products requiring multi-dimensional inspection. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 A schematic diagram of an embodiment of the dimension measuring device provided by the present invention when the product to be measured is located in the positioning groove; Figure 2 A schematic diagram of an embodiment of the dimension measuring device provided by the present invention when the product to be measured is removed from the positioning groove; Figure 3 for Figure 2 A schematic diagram of the structure of an embodiment of the dimension measuring device after the positioning element is removed; Figure 4 A schematic diagram of the assembly structure of an embodiment of the positioning component of the dimension measuring device provided by the present invention; Figure 5 Positioning element for the dimension measuring device provided by the present invention.

[0022] Explanation of icon numbers: 100. Machine base; 110. First guide rail; 120. Second guide rail; 130. Third guide rail; 140. Guide component; 150. Stopping part; 200, Positioning component; 210, Support plate; 211, Fastening hole; 220, Positioning plate; 221, Positioning groove; 222, Notch; 230, Mating part; 300. Fixture; 310. Suction cup; 320. Mounting base; 400. Measuring component; 410. Caliper body; 420. Vernier scale; 500, Abutting component; 510, Actuating part; 511, Pushing inclined surface; 512, First positioning plane; 513, Second positioning plane; 514, Blocking part; 520, Connecting part; 600, drive rod; 700, product to be measured.

[0023] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0025] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0026] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0027] This invention proposes a size measuring device, primarily used for measuring irregularly shaped products. However, it is not limited to irregularly shaped products; products with conventional shapes are also suitable for this size measuring device. Specifically, for head-mounted display devices (such as VR glasses, AR glasses, or MR glasses), lens shapes are diverse, including classic round and square shapes, as well as trendy cat-eye and aviator shapes, and even irregular geometric shapes. During the production process of head-mounted display devices, it is necessary to control the relevant dimensions of the lenses. Using the size measuring device of this invention, even with irregular lens shapes, size measurement can be performed conveniently and quickly.

[0028] Please see Figures 1 to 3 In one embodiment of the present invention, the size measuring device includes: 100 machines; The positioning component 200 has a positioning groove 221, which is used to position and cooperate with the product to be measured 700. A fixing member 300 is used to fix the product 700 to be measured. The positioning member 200 and the fixing member 300 are movably arranged relative to each other, so that the product can be disengaged from the positioning groove 221 after positioning. Measuring component 400 is installed on the machine base 100 and is used to measure the dimensions of the product 700 to be measured.

[0029] In the technical solution of this invention, the contour of the positioning groove 221 is adapted to the contour of the product to be measured 700, and the product to be measured 700 can achieve physical reference positioning after being placed in the positioning groove 221. This positioning method does not rely on image recognition algorithms to fit the coordinate system, and can provide stable and reproducible spatial attitude constraints for measurement.

[0030] After the product under test 700 is initially positioned, when the fixing member 300 fixes the product under test 700, the fixing member 300 and the positioning member 200 move relative to each other, causing the product under test 700 to detach from the positioning groove 221 and be fully exposed. This eliminates the obstruction of the positioning structure and creates an interference-free measurement environment for subsequent dimensional measurements. During the process of the product under test 700 detaching from the positioning groove 221, and during the measurement process after the product under test 700 detaches from the positioning groove 221, the fixing member 300 prevents the product under test 700 from shifting, ensuring that the product under test 700 maintains its initial positioning state after detaching from the positioning groove 221. This ensures the continuity of the measurement process and the accuracy and reliability of the results.

[0031] The positioning element 200 can be a single, integral structure that moves relative to the fixing element 300 along the opening of the positioning groove 221; alternatively, it can be composed of multiple separate parts assembled together, forming an open space by the synchronous outward movement of each part (e.g., radial expansion), thus exposing the product. It should be noted that, unless otherwise specified, "multiple" in this invention refers to two or more. Furthermore, the positioning element 200 also has a notch 222 communicating with the positioning groove 221. This notch 222 is used to avoid structures, such as grippers, from which the product 700 to be measured is placed.

[0032] Measuring element 400 is mounted on machine tool 100 for dimensional inspection of product 700. When using non-contact measuring tools such as industrial cameras or optical profilometers, measuring element 400 can be fixedly mounted in a position where the optical path is unobstructed, or it can be movable to achieve multi-angle scanning imaging, which is especially suitable for high-precision measurement of complex contours, side features, or three-dimensional dimensions. When using contact measuring tools such as measuring probes or calipers, measuring element 400 needs to be movable to avoid the insertion path of product 700 and to flexibly contact each measurement point, improving operational convenience and measurement coverage.

[0033] Therefore, the technical solution of this invention reduces the high dependence of traditional optical measurement on software algorithms, simplifies the measurement process, and improves measurement efficiency, making it particularly suitable for product size measurement scenarios of irregularly shaped products or products requiring multi-dimensional inspection.

[0034] In one embodiment, the fixing member 300 includes a suction cup 310. The upper surface of the suction cup 310 is provided with an adsorption surface. The product to be measured 700 is placed on the adsorption surface of the suction cup 310. The suction cup 310 can quickly adsorb and fix the positioned product to be measured 700. The suction cup 310 has a simple structure and fast response, and is suitable for products with relatively flat surfaces or adsorbable materials, especially suitable for lenses of head-mounted display devices. It is connected to an external air source device through an air passage. When the air source is activated in negative pressure mode, the suction cup 310 can generate an adsorption force at the adsorption surface to fix the product to be measured 700. Specifically, the adsorption surface of the suction cup 310 is provided with multiple micropores, which can achieve multi-point coordinated adsorption under relatively small contact pressure, which is beneficial for generating a uniform and reliable adsorption force.

[0035] In other embodiments, the fixing member 300 can also adopt a clamping pin structure, with clamping pins on both sides of the product to be measured 700 to clamp the product to be measured 700. At least one pin is movable to accommodate products of different sizes, providing stable clamping and flexible adjustment. In particular, when the product to be measured 700 is made of ferromagnetic material, the fixing member 300 can also be configured as a magnetic attractant to attract the product to be measured 700 by magnetic force. That is, the fixing member 300 can fix the product to be measured 700 by adsorption or clamping.

[0036] In one embodiment, the fixing member 300 is fixedly installed on the machine base 100 and is positioned opposite to the positioning groove 221. That is, the positioning member 200 is movably connected to the machine base 100, and the movement of the positioning member 200 allows the product to be tested to be removed from the positioning groove 221. It is understood that when the fixing member 300 is configured as a suction cup 310, the suction cup 310 will be connected to the air source through a pipeline and electrically connected to the control device through a circuit. With the fixing member 300 fixed on the machine base 100, the connected air pipeline and control circuit do not need to move, avoiding problems such as loose connections, air leakage, signal interruption, or fatigue damage caused by pipeline bending, stretching, or twisting. Furthermore, it facilitates centralized layout and protection of pipelines and circuits, reducing the maintenance difficulty of the device. In other embodiments, the fixing member 300 can be movably installed on the machine base 100. In this case, the positioning member 200 can be fixedly set, and the product to be measured 700 is pushed out of the positioning groove 221 by the fixing member 300.

[0037] Specifically, please refer to Figure 3 The suction cup 310 is mounted on the machine base 100 via the mounting base 320. The mounting base 320 is provided with a strip hole. By adjusting the position of the fastener in the strip hole, the mounting position of the suction cup 310 can be adjusted. The strip hole can extend along the X direction, the Y direction, or a direction inclined relative to the X direction.

[0038] In one embodiment, the positioning member 200 is movably connected to the machine base 100 in the Z direction. The Z direction is the vertical direction, and the positioning member 200 can be vertically and vertically positioned. A positioning groove 221 is formed on the upper surface of the positioning member 200, with its opening facing upwards. The product 700 to be measured can be inserted into the positioning groove 221 from top to bottom through the groove, achieving fast and accurate positioning. In other embodiments, the positioning member 200 can also be movably connected to the machine base 100 in other directions, such as the horizontal direction or a direction inclined relative to the vertical direction.

[0039] In one embodiment, please refer to Figures 1 to 3 The size measuring device further includes a stop member 500, which is disposed below the positioning member 200. The positioning member 200 has a mating part 230 fixedly disposed on its lower side. At least one of the stop member 500 and the mating part 230 is provided with a pushing inclined surface 511. The pushing inclined surface 511 is inclined relative to the vertical direction. The stop member 500 is movably disposed in the X direction.

[0040] It is understood that the X direction is horizontal, perpendicular or approximately perpendicular to the Z direction. When the abutment 500 and the mating part 230 engage via the pushing inclined surface 511, the abutment 500 moves horizontally along the X direction, generating a normal component force between the abutment 500 and the mating part 230. This component force pushes the positioning part 200 along the Z direction, thereby achieving the lifting and lowering drive of the positioning part 200. This transmission method converts the horizontal linear motion of the abutment 500 into the vertical lifting and lowering motion of the positioning part 200, resulting in a compact structure and smooth operation. Since the pushing inclined surface 511 is inclined relative to the vertical direction, its inclination angle can be optimized according to the lifting stroke and driving force requirements. While ensuring sufficient lifting stroke, it also achieves force amplification or self-locking function of movement, improving the controllability and stability of the lifting and lowering process of the positioning part 200.

[0041] In some embodiments, one of the mating part 230 and the abutting member 500 may be provided with a pushing slope 511, which helps to reduce the contact area between the mating part 230 and the abutting member 500. Alternatively, both the mating part 230 and the abutting member 500 may be provided with pushing slopes 511, which helps to distribute the stress between the mating part 230 and the abutting member 500. In other embodiments, the positioning member 200 may be driven to rise and fall by directly applying a driving force in the Z direction to the positioning member 200.

[0042] In one embodiment, please refer to Figures 1 to 3 The abutting member 500 is provided with a pushing slope 511, a first positioning plane 512, and a second positioning plane 513. The first positioning plane 512 and the second positioning plane 513 are respectively distributed on opposite sides of the pushing slope 511 in the X direction, wherein the second positioning plane 513 is higher than the first positioning plane 512. It can be understood that when the mating part 230 slides along the pushing slope 511, it can drive the positioning member 200 to rise and fall. Both the first positioning plane 512 and the second positioning plane 513 are used for the mating part 230 to stop. When the mating part 230 stops at the first positioning plane 512, the positioning member 200 is at a lower point; when the mating part 230 stops at the second positioning plane 513, the positioning member 200 is at a higher point. When the product to be measured 700 is placed into the positioning groove 221, the mating part 230 stops at the second positioning plane 513. After the fixing member 300 fixes the product to be measured 700, the mating part 230 slides down the pushing slope 511 until it moves to the first positioning plane 512. At this time, the product to be measured 700 can be released from the positioning groove 221, and then the size of the product to be measured 700 can be measured by the measuring member 400. In other embodiments, grooves can also be provided on both sides of the pushing slope 511 as positioning structures.

[0043] In one embodiment, please refer to Figures 1 to 3The abutting member 500 is provided with a blocking portion 514. When the mating portion 230 abuts against the blocking portion 514, it also abuts against the first positioning plane 512. Specifically, the blocking portion 514 and the pushing slope 511 corresponding to the same first positioning plane 512 are located on opposite sides of the first positioning plane 512 in the X direction. The blocking portion 514 is higher than the first positioning plane 512, so that it can stop the mating portion 230 when it moves to the first positioning plane 512. Wherein, when the abutting member 500 has a plurality of pushing slopes 511 distributed sequentially along the X direction, the boss structure corresponding to the second positioning plane 513 of the adjacent pushing slope 511 can serve as the blocking portion 514.

[0044] In one embodiment, the dimensional measuring device further includes a stop portion 150 fixed to the machine base 100. When the abutting member 500 abuts against the stop portion 150, the mating portion 230 abuts against the second positioning plane 513. Thus, the stop portion 150 can block the abutting member 500, providing endpoint positioning and overtravel protection for the movement of the abutting member 500 in the X direction, ensuring reliable driving of the positioning member 200 by the abutting member 500, and preventing misalignment between the mating portion 230 and the abutting member 500.

[0045] In one embodiment, please refer to Figures 1 to 3 The dimensional measuring device further includes a drive rod 600, which is fixed to the side of the abutment 500 in the X direction and extends along the X direction. Thus, by applying force to the drive rod 600, the abutment 500 can be easily moved along the X direction by manual pushing or pulling. Alternatively, the abutment 500 can be driven by a drive device.

[0046] In one embodiment, please refer to Figures 1 to 4 The abutting member 500 is provided with a plurality of abutting ramps 511, and the mating parts 230 are correspondingly provided with a plurality of ramps 511. Thus, by the one-to-one cooperation of the plurality of abutting ramps 511 and the plurality of mating parts 230, the positioning member 200 can be reliably driven to rise and fall. In other embodiments, only one pair of cooperating abutting ramps 511 and mating parts 230 may be provided.

[0047] In one embodiment, please refer to Figure 3The machine tool 100 is also fixed with two guide members 140, both extending along the X direction and spaced apart in the Y direction. A stop member 500 is disposed between the two guide members 140 and slides against them, thus guiding the movement of the stop member 500 through the guide members 140, ensuring reliable driving of the stop member 500 to the positioning member 200. Furthermore, the stop member 500 includes two working parts 510 spaced apart along the Y direction, fixedly connected by a connecting part 520, with a fixing member 300 disposed between the two working parts 510. Each working part 510 includes at least two right-angled trapezoidal bosses spaced apart along the X direction. The interval between adjacent bosses is the first positioning plane 512, and the upper base of the right-angled trapezoid corresponds to the second positioning plane 513. The inclined side of the right-angled trapezoid connects the first positioning plane 512 and the second positioning plane 513, and this inclined side is the pushing plane. It should be noted that the Y direction is also horizontal, and the X direction is perpendicular or approximately perpendicular to the Y direction. That is, within the allowable error range, the X, Y, and Z directions can be considered to be perpendicular to each other.

[0048] In one embodiment, please refer to Figure 1 and Figure 2 The dimensional measuring device includes a first guide rail 110 extending along the Z direction. The positioning member 200 includes a support plate 210 and a positioning plate 220 mounted on the upper side of the support plate 210. The support plate 210 is slidably connected to the first guide rail 110 in the Z direction. The positioning groove 221 is provided on the positioning plate 220, and the mounting direction of the positioning plate 220 on the support plate 210 is adjustable. Thus, the positioning member 200 can be smoothly raised and lowered by the sliding cooperation between the support plate 210 and the first guide rail 110. When the measuring member 400 is being measured in a specific direction, by adjusting the mounting direction of the positioning plate 220 on the support plate 210, the dimension of the positioning groove 221 in that specific direction will change, and the dimension of the product 700 to be measured in that specific direction will also change accordingly. The position of the product 700 to be measured will also change, thereby enabling comprehensive measurement of the dimensions of the product 700 at different positions. Taking the measurement of the measuring element 400 in the X direction as an example, when the length direction of the product 700 to be measured is also in the X direction, the measuring element 400 can measure the length of the product 700 to be measured. However, when the installation direction of the positioning plate 220 is changed so that the X direction becomes the width direction of the product 700 to be measured, the measuring element 400 can also measure the width of the product 700 to be measured. The mating part 230 is located on the lower side of the support plate 210.

[0049] In one embodiment, please refer to Figure 5The support plate 210 is provided with at least two sets of fastening holes 211 arranged in different directions. The positioning plate 220 is fitted into one set of fastening holes 211 by means of fasteners. It can be understood that the positioning plate 220 is also provided with holes for fasteners to pass through. By matching the holes on the positioning plate 220 with the different fastening holes 211 on the support plate 210 by means of fasteners, the installation direction of the positioning plate 220 on the support plate 210 changes, thereby changing the position of the measuring component 400 on the product to be measured 700.

[0050] Specifically, the support plate 210 may have two fastening holes 211 distributed along the X direction, forming a first set of fastening holes 211. The support plate 210 may also have two fastening holes 211 distributed along the Y direction, forming a second set of fastening holes 211. When the fastener secures the positioning plate 220 to the first set of fastening holes 211, the measuring element 400 can measure the length of the product 700 to be measured in the X direction. When the fastener secures the positioning plate 220 to the second set of fastening holes 211, the measuring element 400 can measure the width of the product 700 to be measured in the X direction.

[0051] In other embodiments, the positioning plate 220 may be rotatably mounted on the support plate 210, and the measurement position of the product 700 to be measured may be changed by rotating the positioning plate 220.

[0052] In one embodiment, the measuring element 400 is configured as a contact measuring tool, and the measuring element 400 is movably mounted on the machine base 100. Specifically, the measuring element 400 includes a caliper body 410 and a vernier part 420. The vernier part 420 is movably fitted onto the caliper body 410 in the X direction, that is, the measuring element 400 is a vernier caliper, specifically a digital vernier caliper. It can be understood that both the caliper body 410 and the vernier part 420 are provided with jaws, which have two measurement methods: external clamping and internal clamping. When measuring the relevant dimensions of a solid structure (such as outer diameter, thickness, outer contour dimensions, etc.), the two jaws are respectively clamped on opposite sides of the product 700 to be measured, which is external clamping measurement. For the relevant dimensions of a virtual structure (such as the inner contour dimensions of through holes, blind holes, slots, etc.), the two jaws abut against the wall structure on opposite sides, which is internal clamping measurement. The vernier 420 moves relative to the caliper body 410 in the X direction, which can change the distance between the two jaws, thereby measuring the relevant dimensions of the product 700 to be measured in the X direction.

[0053] In one embodiment, please refer to Figures 1 to 3The dimensional measuring device includes a second guide rail 120 extending along the X direction and a third guide rail 130 extending along the Y direction. The caliper body 410 and the vernier part 420 are slidably connected to the second guide rail 120 in the X direction, and the second guide rail 120 is slidably connected to the third guide rail 130 in the Y direction. This allows the caliper body 410 and the vernier part 420 to slide along the second guide rail 120 in the X direction, and the second guide rail 120 to drive the caliper body 410 and the vernier part 420 to slide along the third guide rail 130 in the Y direction. This flexibly adjusts the position of the measuring element 400, enabling it to switch flexibly between a position that avoids the insertion and removal path of the product 700 to be measured and a position that measures the dimensions of the product 700, thereby ensuring the reliable execution of the measurement process.

[0054] The above description is merely an exemplary embodiment of the present invention and does not limit the scope of protection of the present invention. Any equivalent structural transformations made based on the technical concept of the present invention and the contents of the specification and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present invention.

Claims

1. A size measuring device, characterized in that, include: Machine tool; A positioning element having a positioning groove, the positioning groove being used for positioning and engaging with the product to be measured; A fixing member for securing the product to be measured; the positioning member and the fixing member are movably arranged relative to each other, allowing the product to be measured to disengage from the positioning groove after positioning; and A measuring element, mounted on the machine tool, is used to measure the dimensions of the product to be measured.

2. The size measuring device as described in claim 1, characterized in that, The fixing component includes a suction cup, and the upper surface of the suction cup is provided with an adsorption surface; And / or, the fastener is fixedly installed on the machine base and is positioned opposite to the positioning groove.

3. The size measuring device as described in claim 1, characterized in that, The positioning element is movably connected to the machine tool in the Z direction.

4. The size measuring device as described in claim 3, characterized in that, The size measuring device further includes a stop member, which is disposed below the positioning member. A mating part is fixedly provided on the lower side of the positioning member. At least one of the stop member and the mating part is provided with a pushing inclined surface. The pushing inclined surface is inclined relative to the vertical direction. The stop member is movably disposed in the X direction.

5. The size measuring device as described in claim 4, characterized in that, The abutting member is provided with a pushing slope, a first positioning plane and a second positioning plane. The first positioning plane and the second positioning plane are respectively distributed on opposite sides of the pushing slope in the X direction, and the second positioning plane is higher than the first positioning plane.

6. The size measuring device as described in claim 5, characterized in that, The abutting member is provided with a blocking part, and when the mating part abuts against the blocking part, it also abuts against the first positioning plane; And / or, the size measuring device further includes a stop portion fixed to the machine base, wherein when the abutting member abuts against the stop portion, the mating portion abuts against the second positioning plane.

7. The size measuring device as described in claim 4, characterized in that, The size measuring device also includes a drive rod, which is fixed to the side of the abutment in the X direction and extends along the X direction; And / or, the abutting member is provided with a plurality of the abutting inclined surfaces, and the mating part is provided with a plurality of the corresponding surfaces.

8. The size measuring device as described in claim 3, characterized in that, The dimensional measuring device includes a first guide rail extending along the Z direction, the positioning element includes a support plate and a positioning plate mounted on the upper side of the support plate, the support plate is slidably connected to the first guide rail in the Z direction, the positioning groove is provided on the positioning plate, and the mounting direction of the positioning plate on the support plate is adjustable.

9. The size measuring device as described in claim 8, characterized in that, The support plate is provided with at least two sets of fastening holes with different arrangement directions, and the positioning plate is fitted into one of the sets of fastening holes by means of fasteners.

10. The dimension measuring device according to any one of claims 1 to 9, characterized in that, The measuring element is configured as a contact measuring tool and is movably mounted on the machine base.

11. The size measuring device as described in claim 10, characterized in that, The measuring component includes a caliper body and a vernier part, wherein the vernier part is movably fitted onto the caliper body in the X direction.

12. The size measuring device as described in claim 11, characterized in that, The dimensional measuring device includes a second guide rail extending along the X direction and a third guide rail extending along the Y direction. The caliper body and the vernier part are slidably connected to the second guide rail in the X direction, and the second guide rail is slidably connected to the third guide rail in the Y direction.

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