Jig for fast measurement of products with irregular shape

Abstract

The utility model relates to the technical field of machining auxiliary tool discloses the fixture for the quick measurement of the product of irregular shape, including base and fixed probe and mobile probe, be equipped with the positioning platform for positioning the product of measuring on the base, install the measurement sliding mechanism for measuring and positioning the product of measuring on the base, install the digital display for the length of the product of measuring of side measurement on the measurement sliding mechanism, fixed probe and mobile probe are arranged horizontally relative spacing between, form the measurement area for measuring the product of measuring, the profiling contact surface can realize with the overall adhesion of product end face, ensure the contact stability and integrality of probe and product when measuring, eliminate the error source from the measurement contact link, improve the accuracy of measurement data greatly, also improve the measurement efficiency, solve the problem that the product of irregular shape exists in the measuring process lower efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of machining auxiliary tools, and more specifically, to a fixture for rapid measurement of products with irregular shapes. Background Technology

[0002] Currently, during the initial setup and production of injection molding machines, it is necessary to measure the length of the newly produced product to ensure that it meets the tolerance requirements of the drawings and the assembly accuracy. The existing methods mostly involve using calipers and 2D imaging to measure the length and width of the product separately, which has the following problems: Low efficiency: During measurement, due to the irregular shape of the product, there is no flat surface available, the caliper cannot accurately find the highest point, and due to different caliper holding techniques, multiple readings are inconsistent, resulting in large errors.

[0003] The operation is cumbersome: When the product edge has a radius and a radius, it needs to be sent to a 2D projection. Each measurement takes 10 minutes. After calibration and adjustment to the appropriate injection molding parameters, it needs to be sent for inspection multiple times. Data needs to be recorded and compared repeatedly, which is very time-consuming. Utility Model Content

[0004] The purpose of this invention is to provide a fixture for rapid measurement of irregularly shaped products, aiming to solve the problem of low efficiency in the measurement of irregularly shaped products in the prior art.

[0005] This utility model is a fixture for rapid measurement of irregularly shaped products, comprising a base, a fixed probe, and a movable probe. The base is provided with a positioning platform for positioning the product to be measured. The positioning platform is slidably connected to the base and can reciprocate along the length of the base. A measuring sliding mechanism for measuring and positioning the product to be measured is installed on the base. A digital display for measuring the length of the product to be measured is installed on the measuring sliding mechanism. The digital display is provided with a zeroing button, which can set the measurement value of the standard block to the reference zero position. The fixed probe and the moving probe are arranged horizontally at relative intervals to form a measurement area for measuring the product under test. The measurement area is located above the positioning platform. The fixed probe and the moving probe are respectively mounted on the measurement sliding mechanism. The moving probe is fixedly arranged relative to the digital display. Both the fixed probe and the moving probe have a contoured contact surface that abuts against the end face of the product under test. The contoured contact surface is a contoured structure that matches the end face of the product under test and is used to fit the end face of the product.

[0006] Furthermore, the measuring sliding mechanism includes a first measuring sliding component and a second measuring sliding component, the first measuring sliding component and the second measuring sliding component are respectively installed on both sides of the base, and the positioning platform is located between the first measuring sliding component and the second measuring sliding component; The digital display and the moving probe are respectively mounted on the first measuring sliding assembly, and the fixed probe is mounted on the second measuring sliding assembly. The digital display, the moving probe, and the fixed probe are at the same level and arranged relative to each other in sequence.

[0007] Furthermore, the first measuring sliding assembly includes a first slide block, a first slide rail for sliding measurement of the first slide block, and a locking block that can be moved and adjusted on the first slide block. The first slide block has a clamping seat for holding a digital display meter, and the digital display meter has a locking rod for measurement. The locking rod is connected to the moving probe through the locking block.

[0008] Furthermore, the second measuring sliding assembly includes a second slide block and a second slide rail for sliding and positioning the second slide block. The fixed probe is mounted on the second slide block, and an adjustable key for fixing the second slide block is mounted on the second slide rail.

[0009] Furthermore, the first slide and the positioning platform are connected by a first buffer spring, and the second slide and the positioning platform are connected by a second buffer spring.

[0010] Furthermore, the base is provided with two sets of parallel and spaced limiting posts, which are located on both sides of the positioning platform to limit the movement range of the positioning platform or the first slide.

[0011] Furthermore, a third slide rail is provided on the top of the base for the positioning platform to slide, and a positioning mechanism for vertically positioning the product to be tested is provided on one side of the positioning platform.

[0012] Furthermore, the positioning mechanism includes a vertically arranged support column and a horizontal bar. The bottom of the support column is installed on one side of the positioning platform. One end of the horizontal bar is sleeved on the upper part of the support column, and the other end of the horizontal bar is provided with an elastically telescopic pressure column. The pressure column is arranged vertically and is located directly above the positioning platform.

[0013] Furthermore, a plastic shell is embedded in the top of the positioning platform to conform to and fix the bottom of the product to be tested. The conforming positioning base is detachably connected to the positioning platform, and the conforming positioning base and the pressure column are arranged vertically opposite each other.

[0014] Furthermore, handles are provided at both ends of the base, and the handles are double-handle structures. Multiple feet are provided at the bottom of the base.

[0015] Compared with existing technologies, the fixture for rapid measurement of irregularly shaped products provided by this utility model uses a positioning platform to position the product to be measured. A measuring sliding mechanism drives the fixed and moving probes to slide and measure. Combined with a digital display, it upgrades traditional manual reading to digital display, not only avoiding visual errors from manual reading but also allowing for rapid calibration of the measurement benchmark by setting the standard block measurement value to the zero position via the zero button on the digital display. The fixed and moving probes are arranged horizontally and relatively alternately to form a measurement area, and their contoured contact surfaces adopt a contoured structure that matches the end face of the product to be measured. This design precisely solves the key difficulty of fitting the end face of irregularly shaped products to the measurement. Traditional planar probes are prone to point or partial contact when contacting irregular end faces, leading to measurement data deviation. The contoured contact surface achieves full fit with the product end face, ensuring the stability and integrity of the probe-product contact during measurement. This eliminates the source of error at the measurement contact stage, significantly improving the accuracy of measurement data and increasing measurement efficiency. It solves the problem of low efficiency in measuring irregularly shaped products. Attached Figure Description

[0016] Figure 1 This is a frontal three-dimensional schematic diagram of the fixture for rapid measurement of irregularly shaped products provided by this utility model; Figure 2 This is a front view structural diagram of the fixture for rapid measurement of irregularly shaped products provided by this utility model; Figure 3 This is a rear-view three-dimensional schematic diagram of the fixture for rapid measurement of irregularly shaped products provided by this utility model. Figure 4 This is a three-dimensional schematic diagram of the movable probe provided by this utility model.

[0017] In the figure: base 10, first measuring sliding assembly 20, moving probe 30, second measuring sliding assembly 40, fixed probe 50, positioning platform 60, digital display 70, positioning mechanism 80, limit post 11, third slide rail 12, handle 13, foot 14, first slide block 21, first slide rail 22, locking block 23, clamping seat 24, first buffer spring 25, contoured contact surface 31, second slide block 41, second slide rail 42, adjustable key 43, second buffer spring 44, contoured positioning base 61, locking rod 71, support column 81, horizontal bar 82, pressing column 83. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0020] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0021] Reference Figure 1-4 The image shown is a preferred embodiment of the present invention.

[0022] A fixture for rapid measurement of irregularly shaped products includes a base 10, a fixed probe 50, and a movable probe 30. The base 10 is provided with a positioning platform 60 for positioning the product to be measured. The positioning platform 60 is slidably connected to the base 10 and can reciprocate along the length of the base 10. A measuring sliding mechanism for measuring and positioning the product to be measured is installed on the base 10. A digital display 70 for measuring the length of the product to be measured is installed on the measuring sliding mechanism. The digital display 70 is provided with a zeroing button, which can set the measurement value of the standard block to the reference zero position. The fixed probe 50 and the movable probe 30 are arranged horizontally at relative intervals to form a measurement area for measuring the product under test. The measurement area is located above the positioning platform 60. The fixed probe 50 and the movable probe 30 are respectively mounted on the measurement sliding mechanism. The movable probe 30 is fixedly arranged relative to the digital display 70. Both the fixed probe 50 and the movable probe 30 have a contoured contact surface 31 that abuts against the end face of the product under test. The contoured contact surface 31 is a contoured structure that matches the end face of the product under test and is used to fit the end face of the product.

[0023] The fixture provided above for rapid measurement of irregularly shaped products uses a positioning platform 60 to position the product under test. A measuring sliding mechanism drives the fixed probe 50 and the moving probe 30 to slide and measure. Combined with a digital display 70, it upgrades traditional manual reading to digital display, avoiding visual errors associated with manual reading. Furthermore, the zeroing button on the digital display 70 sets the standard block measurement value to the reference zero point, enabling rapid calibration of the measurement reference. The fixed probe 50 and the moving probe 30 are arranged horizontally and relatively alternately to form a measurement area. Their contoured contact surface 31 adopts a contoured structure that matches the end face of the product under test. This design precisely solves the key difficulty of fitting the end face of irregularly shaped products to the measurement. Traditional planar probes are prone to point or partial contact with irregular end faces, leading to measurement data deviations. The contoured contact surface 31, however, achieves full fit with the product end face, ensuring the stability and integrity of the probe-product contact during measurement. This eliminates the source of error at the measurement contact stage, significantly improving the accuracy of measurement data and increasing measurement efficiency. It solves the problem of low efficiency in measuring irregularly shaped products.

[0024] The fixed probe 50 and the movable probe 30 are arranged symmetrically.

[0025] Irregularly shaped products such as earphone charging cases, cosmetic cases, etc.

[0026] Workflow: For products with irregular shapes (such as parting line mold openings that are not the maximum outer dimensions, edges with rounded corners, drawings only showing the highest point, all arcs without flat surfaces for reference, paint accumulation on the outer edges, and projection measurement affecting reference points for line reading), to measure the product's length and width dimensions, first create a steel template based on the product's length end face. Using the same positioning as the product, mount it on the measuring fixture. Then, slide the digital display 70° until it reaches the template position and reset it to zero. Replace it with a newly produced product and mount it on the template. Compare the data with the template to see if they match. It is clear whether the length is larger or smaller, allowing for quick and accurate determination of the product length. This can assist injection molding machine operators in modifying appropriate parameters and quickly entering mass production. However, the product's FAI data still needs to be sent to the measurement room for detailed testing. If problems are still found, at most, the injection molding parameters can be slightly adjusted before formal production can begin.

[0027] In this embodiment, the measuring sliding mechanism includes a first measuring sliding component 20 and a second measuring sliding component 40. The first measuring sliding component 20 and the second measuring sliding component 40 are respectively installed on both sides of the base 10, and the positioning platform 60 is located between the first measuring sliding component 20 and the second measuring sliding component 40. The digital display 70 and the moving probe 30 are respectively installed on the first measuring sliding assembly 20, and the fixed probe 50 is installed on the second measuring sliding assembly 40. The digital display 70, the moving probe 30 and the fixed probe 50 are at the same level and arranged relative to each other in sequence.

[0028] By splitting the measuring sliding mechanism into a first measuring sliding component 20 and a second measuring sliding component 40, and installing them on both sides of the base 10 respectively, with the positioning platform 60 located between the two, a symmetrical and independent measuring sliding adjustment structure is formed. This dual-sided separation design allows the fixed probe 50 and the moving probe 30 to be adjusted independently through their respective sliding components, significantly improving the adjustment flexibility compared to the traditional integrated measuring mechanism. The design of the digital display 70, the moving probe 30, and the fixed probe 50 being arranged at the same level and relative to each other ensures the horizontality of the measurement path and eliminates the measurement direction deviation caused by the difference in the installation height of the components. When measuring length, the horizontal arrangement of the structure makes the measurement direction completely consistent with the product length direction, avoiding the cosine error caused by oblique measurement. From the structural design, this further ensures the accuracy of length measurement, and is especially suitable for measurement scenarios of irregularly shaped products with high requirements for length dimension accuracy.

[0029] In this embodiment, the first measuring sliding assembly 20 includes a first slide block 21, a first slide rail 22 for sliding measurement of the first slide block 21, and a locking block 23 that can be moved and adjusted on the first slide block 21. The first slide block 21 has a clamping seat 24 for clamping the digital display 70, and the digital display 70 has a locking rod 71 for measurement. The locking rod 71 is connected to the moving probe 30 through the locking block 23.

[0030] The first slide 21 is provided with a control handle on one side to control its sliding, thereby improving the control efficiency of the first slide 21.

[0031] The cooperation between the first slide block 21 and the first slide rail 22 provides a stable guiding structure for the sliding measurement of the moving probe 30, ensuring that the moving probe 30 always moves along a fixed trajectory during the sliding process, avoiding measurement errors caused by sliding offset, and improving the smoothness and positional accuracy of the sliding of the moving probe 30. The design of the locking block 23, which can be moved and adjusted on the first slide 21, provides flexible position adjustment space for the connection between the locking rod 71 and the moving probe 30. When installing or replacing the digital display 70 and the moving probe 30, the operator can adjust the position of the locking block 23 to ensure that the connection between the locking rod 71 and the moving probe 30 is in the best state, ensuring that the measurement displacement of the moving probe 30 can be transmitted to the digital display 70 synchronously through the locking rod 71, avoiding measurement data distortion caused by connection position deviation. In addition, the clamping and fixing function of the clamping seat 24 on the digital display 70 ensures the stability of the digital display 70 during the measurement process, prevents the digital display 70 from being displaced due to vibration or collision, further ensures the reliability of the measurement data, and also facilitates the disassembly and maintenance of the digital display 70.

[0032] In this embodiment, the second measuring sliding assembly 40 includes a second slide block 41 and a second slide rail 42 for sliding and positioning the second slide block 41. The fixed probe 50 is mounted on the second slide block 41, and an adjustable key 43 for fixing the second slide block 41 is mounted on the second slide rail 42.

[0033] The cooperation between the second slide block 41 and the second slide rail 42 provides a basic structure for sliding positioning of the fixed probe 50. Although the fixed probe 50 mainly serves as a reference positioning, its sliding design allows it to adjust the initial positioning position according to the length of products of different specifications, thereby expanding the measurement range of the fixture and avoiding the problem of not being able to measure due to the product length exceeding the initial positioning range of the fixed probe 50, further improving the versatility of the fixture.

[0034] The adjustable key 43 installed on the second slide rail 42 enables quick fixing and unlocking of the second slide block 41. After adjusting the position of the fixed probe 50, the operator only needs to move the adjustable key 43 to fix the second slide block 41 without the need for additional tools, simplifying the operation steps and shortening the positioning time of the fixed probe 50. At the same time, when it is necessary to readjust the position, the adjustable key 43 can be moved in the opposite direction to unlock it, making the operation convenient and efficient. This convenient fixing and adjustment method greatly improves the operating efficiency of the fixture, and is especially suitable for batch measurement of products with different specifications and irregular shapes, reducing the time cost of frequently adjusting the fixed probe 50.

[0035] In this embodiment, the first slide 21 and the positioning platform 60 are connected by a first buffer spring 25, and the second slide 41 and the positioning platform 60 are connected by a second buffer spring 44.

[0036] By setting a first buffer spring 25 and a second buffer spring 44 between the first slide 21 and the positioning platform 60, and between the second slide 41 and the positioning platform 60 respectively, an elastic buffering mechanism is introduced, which effectively solves the problem of rigid collision during the measurement process; and improves the protection of the digital display 70 and the product under test.

[0037] In this embodiment, the base 10 is provided with two sets of parallel and spaced limiting posts 11, which are located on both sides of the positioning platform 60 to limit the movement range of the positioning platform 60 or the first slide 21.

[0038] The positioning platform 60 is equipped with a control handle on one side to control its sliding, thereby improving the control efficiency of the positioning platform 60.

[0039] The design of two sets of parallel and spaced limiting posts 11 located on both sides of the positioning platform 60 creates a dual safety protection and position restriction mechanism. First, for the positioning platform 60, the limiting posts 11 can limit the movement range of the positioning platform 60, preventing the positioning platform 60 from exceeding the preset stroke due to operational errors or mechanical failures during the sliding process, avoiding collisions between the positioning platform 60 and the first slide 21 and the second slide 41, protecting the safety of the positioning platform 60 and the product under test, and extending the service life of the equipment.

[0040] In this embodiment, a third slide rail 12 for the positioning platform 60 to slide is provided on the top of the base 10, and a positioning mechanism 80 for vertically positioning the product to be tested is provided on one side of the positioning platform 60.

[0041] The third slide rail 12 at the top of the base 10 provides a dedicated guide structure for the sliding of the positioning platform 60. The vertical positioning mechanism 80 on one side of the positioning platform 60 fills the gap in traditional fixtures that can only achieve horizontal positioning, realizing the vertical positioning and fixation of the product to be measured. For products with irregular shapes, horizontal positioning alone is not enough to ensure their stability during the measurement process. The vertical positioning mechanism 80 can limit the product in the vertical direction, preventing vertical displacement or tilting of the product during the measurement process, ensuring that the product is always in the correct measurement posture, further improving the stability and accuracy of the measurement, especially suitable for measuring products with irregular dimensions in the height direction or those that are easy to tip over.

[0042] In this embodiment, the positioning mechanism 80 includes a vertically arranged support column 81 and a horizontal bar 82. The bottom of the support column 81 is installed on one side of the positioning platform 60. One end of the horizontal bar 82 is sleeved on the upper part of the support column 81. The other end of the horizontal bar 82 is provided with an elastically telescopic pressing column 83. The pressing column 83 is arranged vertically and is located directly above the positioning platform 60.

[0043] The bottom of the support column 81 is installed on one side of the positioning platform 60, providing a stable installation base for the horizontal bar 82; one end of the horizontal bar 82 is sleeved on the upper part of the support column 81, so that the horizontal bar 82 can move up and down along the support column 81 to adjust its height position to adapt to products of different height specifications, thereby improving the height adaptability of the positioning mechanism 80. The elastic telescopic pressure column 83, located at the other end of the horizontal bar 82, employs an elastic telescopic structure. When the product under test is vertically pressured and fixed, it can automatically adjust the amount of telescopic movement according to the actual shape and height of the top of the product, achieving flexible pressure. This flexible pressure method ensures that the pressure column 83 is in close contact with the top of the product for reliable fixation, while avoiding product damage caused by rigid pressure. It is especially suitable for products with fragile surfaces or complex, irregular shapes.

[0044] In this embodiment, a plastic shell is embedded in the top of the positioning platform 60 to conform to and fix the bottom of the product to be tested. The conforming positioning base 61 is detachably connected to the positioning platform 60, and the conforming positioning base 61 and the pressing column 83 are arranged vertically opposite each other.

[0045] The plastic shell contour positioning base 61 embedded at the top of the positioning platform 60 adopts a contour structure that matches the bottom of the product under test, enabling precise positioning and fixed attachment of the bottom of the product under test. Compared with traditional flat bases, the contour positioning base 61 can perfectly match the irregular shape of the bottom of the product, increasing the contact area between the product and the contour positioning base 61, improving the stability of the bottom positioning of the product, and preventing the product from sliding or rotating horizontally during the measurement process. This ensures the accuracy of the product's measurement posture from the bottom positioning stage.

[0046] In this embodiment, handles 13 are provided at both ends of the base 10. The handles 13 are double handles. Multiple feet 14 are provided at the bottom of the base 10.

[0047] The double-handle structure handles 13 at both ends of the base 10 provide convenient operating components for handling the fixture and also increase the stability of handling; the height of the base 10 can be adjusted by the feet 14.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fixture for rapid measurement of products with irregular shapes, characterized in that, The device includes a base, a fixed probe, and a movable probe. The base is equipped with a positioning platform for positioning the product under test. The positioning platform is slidably connected to the base and can reciprocate along the length of the base. The base is equipped with a measuring sliding mechanism for measuring and positioning the product under test. The measuring sliding mechanism is equipped with a digital display for measuring the length of the product under test. The digital display has a zeroing button, which can set the measurement value of the standard block to the reference zero position. The fixed probe and the moving probe are arranged horizontally at relative intervals to form a measurement area for measuring the product under test. The measurement area is located above the positioning platform. The fixed probe and the moving probe are respectively mounted on the measurement sliding mechanism. The moving probe is fixedly arranged relative to the digital display. Both the fixed probe and the moving probe have a contoured contact surface that abuts against the end face of the product under test. The contoured contact surface is a contoured structure that matches the end face of the product under test and is used to fit the end face of the product.

2. The fixture for rapid measurement of irregularly shaped products as described in claim 1, characterized in that, The measuring sliding mechanism includes a first measuring sliding component and a second measuring sliding component, which are respectively mounted on both sides of the base, and the positioning platform is located between the first measuring sliding component and the second measuring sliding component. The digital display and the moving probe are respectively mounted on the first measuring sliding assembly, and the fixed probe is mounted on the second measuring sliding assembly. The digital display, the moving probe, and the fixed probe are at the same level and arranged relative to each other in sequence.

3. The fixture for rapid measurement of irregularly shaped products as described in claim 2, characterized in that, The first measuring sliding assembly includes a first slide block, a first slide rail for sliding measurement of the first slide block, and a locking block that can be moved and adjusted on the first slide block. The first slide block has a clamping seat for holding a digital display meter, and the digital display meter has a locking rod for measurement. The locking rod is connected to the moving probe through the locking block.

4. The fixture for rapid measurement of irregularly shaped products as described in claim 3, characterized in that, The second measuring sliding assembly includes a second slide block and a second slide rail for sliding and positioning the second slide block. The fixed probe is mounted on the second slide block, and an adjustable key for fixing the second slide block is mounted on the second slide rail.

5. The fixture for rapid measurement of irregularly shaped products as described in claim 4, characterized in that, The first slide and the positioning platform are connected by a first buffer spring, and the second slide and the positioning platform are connected by a second buffer spring.

6. The fixture for rapid measurement of irregularly shaped products as described in claim 5, characterized in that, The base is provided with two sets of parallel and spaced limiting posts, which are located on both sides of the positioning platform to limit the movement range of the positioning platform or the first slide.

7. The fixture for rapid measurement of irregularly shaped products as described in any one of claims 1 to 6, characterized in that, The base is provided with a third slide rail for the positioning platform to slide on its top, and a positioning mechanism for vertically positioning the product to be tested is provided on one side of the positioning platform.

8. The fixture for rapid measurement of irregularly shaped products as described in claim 7, characterized in that, The positioning mechanism includes a vertically arranged support column and a horizontal bar. The bottom of the support column is installed on one side of the positioning platform. One end of the horizontal bar is sleeved on the upper part of the support column. The other end of the horizontal bar is provided with an elastically telescopic pressure column. The pressure column is arranged vertically and is located directly above the positioning platform.

9. The fixture for rapid measurement of irregularly shaped products as described in claim 8, characterized in that, The top of the positioning platform is embedded with a plastic shell for conforming and fixing the bottom of the product to be tested. The conforming positioning base is detachably connected to the positioning platform, and the conforming positioning base and the pressure column are arranged vertically opposite each other.

10. The fixture for rapid measurement of irregularly shaped products as described in any one of claims 1 to 6, characterized in that, The base is provided with handles at both ends, and the handles are double-handle structures. The base is provided with multiple feet at the bottom.

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