Size detection device and detection method

Abstract

The invention relates to a size detection device and method. The size detection device comprises an operation table; the bearing assembly is mounted on the operation table and is used for bearing a to-be-detected piece; the detector is arranged above the bearing assembly and is detachably mounted on a top mounting seat, and the top mounting seat is fixedly mounted on the operation table; the number of the clamping assemblies is two, the two clamping assemblies are symmetrically installed on the portions, on the two sides of the bearing assembly, of the operation table, a to-be-detected piece is clamped between the two clamping assemblies, and the clamping assemblies are constructed to be capable of clamping the to-be-detected piece to conduct horizontal movement, lifting movement and rotation; and the detection surface of the to-be-detected piece is arranged in the detection area of the detector. According to the invention, the dimensions of various parts with different shapes can be detected, the universality of the device is improved, the fastening, free overturning and horizontal movement of the detected parts can be realized during detection, the detection precision is ensured, and the detection efficiency and safety are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of size detection equipment, and in particular to a size detection device and a detection method. Background Art

[0002] At present, EMUs need to purchase a large number of welded parts of different shapes during the manufacturing process. Because the quality control of product dimensions by parts suppliers is unstable during the manufacturing process, parts dimensions may be out of tolerance from time to time. If out-of-tolerance parts are installed on EMUs, a large amount of rework and repair will be caused, delaying the delivery cycle of the vehicle.

[0003] In order to avoid this phenomenon, it is necessary to detect the outer contour dimensions of thousands of welding parts. At present, when the parts are inspected in the warehouse, the inspectors mainly place the parts on the ground at a specific location and then use the corresponding inspection equipment for inspection.

[0004] The traditional detection method has the following two shortcomings:

[0005] 1. Because the parts were not fixed during testing, the testing accuracy was seriously affected.

[0006] 2. When inspecting some parts, they need to be repeatedly flipped over to complete the size inspection of different parts. The traditional inspection method is to use manual flipping, which not only has low inspection efficiency, but also has certain safety hazards. Summary of the invention

[0007] The main technical problem solved by the present invention is to provide a size detection device which can ensure detection accuracy and greatly improve detection efficiency and safety, and at the same time provide a detection method using the device.

[0008] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0009] A size detection device, comprising:

[0010] Operation table;

[0011] A bearing assembly, mounted on the operating table, for bearing the part to be tested;

[0012] A detector is placed above the bearing assembly and is detachably mounted on a top mounting seat, and the top mounting seat is fixedly mounted on the operating table;

[0013] The clamping assembly includes two groups, which are symmetrically installed on the operating tables on both sides of the supporting assembly. The workpiece to be detected is clamped between the two groups of the clamping assemblies. The clamping assembly is constructed to clamp the workpiece to be detected for horizontal movement, lifting movement and rotation, so that the detection surface of the workpiece to be detected is placed within the detection area of ​​the detector.

[0014] Furthermore, a mounting groove is provided on the top mounting seat, and the mounting groove is opened at least on the front end surface for inserting the detector, the top of the detector abuts against the top wall of the mounting groove, and at least two groups of elastic clamping components are provided at the bottom of the detector for clamping and fixing the detector in the mounting groove.

[0015] Furthermore, the elastic clamping assembly includes a limit rod, a spring and a first clamping plate. The bottom wall of the mounting groove has an opening that exposes the detection area of ​​the detector. The bottom of the limit rod is installed on the bottom wall. The spring is sleeved on the limit rod. The top of the spring and the limit rod are connected to the first clamping plate. The detector is clamped between the first clamping plate and the top wall of the mounting groove.

[0016] Furthermore, the bottom wall of the mounting groove is composed of horizontal mounting plates on both sides, and the space between the two horizontal mounting plates forms an opening to avoid the detection area of ​​the detector.

[0017] Furthermore, the clamping assembly includes a first electric telescopic rod that can be extended and retracted in the vertical direction, the bottom of the first electric telescopic rod is installed on the operating table, a mounting block is installed on the top of the first electric telescopic rod, an electric telescopic push rod that can be extended and retracted in the horizontal direction is installed on the side of the mounting block, a rotating mechanism is installed at the front end of the electric telescopic push rod, and a second clamping plate is fixedly installed at the front end of the rotating mechanism, and the second clamping plates in the two groups of the clamping assemblies clamp the middle part to be detected from both sides.

[0018] Furthermore, the rotating mechanism includes a motor and a rotating shaft, the output end of the motor is connected to the rotating shaft, and the second clamping plate is installed at the front end of the rotating shaft.

[0019] Furthermore, the bottom of the clamping assembly is connected to the table top of the operating table via a movable mechanism, and the movable mechanism is configured to enable the clamping assembly to move in a horizontal direction relative to the table top of the operating table.

[0020] Furthermore, the bearing assembly includes a bearing plate and a lifting mechanism installed below the bearing plate, the lifting mechanism includes at least two second electric telescopic rods installed at the bottom of the bearing plate, and the bottom of the second electric telescopic rods is fixedly installed on the operating table.

[0021] Furthermore, two groups of support parts are installed on both sides below the operating table, and a pull-out storage box is installed between the two groups of support parts.

[0022] The basic concept of another technical solution adopted by the present invention is:

[0023] A detection method using the size detection device as described above comprises the following steps:

[0024] S1. Install the detector in the top mounting seat, place the object to be detected on the bearing assembly, operate the clamping assembly to clamp the object to be detected from both ends, and place the first detection surface of the object to be detected within the detection area of ​​the detector;

[0025] S2, controlling the detector to detect the size on the first detection surface;

[0026] S3, after the test is completed, the clamping assembly is operated to lift the test piece away from the carrying assembly, the clamping assembly is controlled to rotate and / or move horizontally until the second test surface of the test piece is placed in the test area of ​​the detector, and the clamping assembly is operated to make the test piece fall on the carrying assembly again;

[0027] S4, controlling the detector to detect the size on the second detection surface;

[0028] S5. Repeat the above steps S3 and S4, and change the detection surface in turn for detection.

[0029] In summary, the size detection device and detection method provided by the present invention have the following beneficial effects compared with the prior art:

[0030] (1) The present invention can realize dimensional detection of various parts of different shapes, avoiding the limitation of making different detection devices for parts of different sizes and shapes. The device has strong versatility, greatly improves the detection efficiency and safety, and reduces the labor intensity of the detection operation.

[0031] (2) During the detection process, the present invention can realize the free flipping and horizontal movement of the detection part according to the detection needs. After one clamping, the detection part can be fully detected, which further improves the detection efficiency and safety and reduces the labor intensity of the detection operation.

[0032] (3) The present invention achieves the fastening of the detection part during detection, thereby ensuring the detection accuracy.

[0033] (4) The present invention facilitates installation and disassembly of the detector, thereby solving the problem in the prior art that when replacing the detector, the entire detection device needs to be replaced, thus wasting resources.

[0034] The specific implementation modes of the present invention are further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0036] In the attached picture:

[0037] Figure 1 It is a schematic diagram of the overall structure of the detection device of the present invention;

[0038] Figure 2 It is a schematic diagram of the forward structure of the detection device of the present invention;

[0039] Figure 3 It is a schematic diagram of the lateral structure of the detection device of the present invention.

[0040] In the figure:

[0041] Operating table 1, operating table plate 11, fixing plate 12, top plate 13;

[0042] Carrying assembly 2, carrying plate 21, lifting mechanism 22, second electric telescopic rod 221, supporting plate 222;

[0043] Detector 3;

[0044] Clamping assembly 4, first electric telescopic rod 41, mounting block 42, electric telescopic push rod 43, rotating mechanism 44, motor 441, rotating shaft 442, second clamping plate 45, mounting plate 46;

[0045] Top mounting seat 5, mounting groove 51, horizontal mounting plate 52;

[0046] Elastic clamping assembly 6, limiting rod 61, spring 62, first clamping plate 63;

[0047] Support part 7, storage box 8, fixing frame 9, handle 10.

[0048] It should be noted that the drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0050] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0051] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] Embodiment 1:

[0053] like Figures 1 to 3 As shown, the present invention provides a size detection device that can be used to detect the outline dimensions of welding parts of different shapes and the local shape dimensions of each hole, groove, etc. on the parts.

[0054] In this embodiment, the size detection device includes an operating table 1, a bearing assembly 2, a detector 3 and a clamping assembly 4. The operating table 1 is placed on the ground of the inspection workshop, and the bearing assembly 2 and the clamping assembly 4 are both installed on the operating table 1. The bearing assembly 2 is used to carry the part to be inspected (not shown in the figure), and the part to be inspected is placed on the bearing assembly 2 during inspection; the detector 3 is placed above the bearing assembly 2 to detect the dimensions of each inspection surface of the part to be inspected; the clamping assembly 4 includes two groups, which are used to clamp the part to be inspected in the middle from the left and right sides, and are used to move the part to be inspected horizontally, lift and lower, and rotate, so that the part to be inspected can be converted between different inspection surfaces, and different inspection surfaces are placed in the inspection area of ​​the detector to complete the inspection of all sizes.

[0055] In this embodiment, the operating table 1 includes an operating table 11. In order to facilitate the placement of various parts to be tested, the operating table 1 preferably adopts a cubic structure with a square table surface. A fixing plate 12 extending vertically upward is installed on one side of the operating table 11. A top plate 13 extends horizontally toward the operating table 11 from the top of the fixing plate 12. A top mounting seat 5 is installed on the top plate 13, and the detector 3 is detachably mounted on the top mounting seat 5. The top mounting seat 5 can be fixedly installed below the top plate 13 by welding or by fasteners. In this embodiment, it is preferred that the top mounting seat 5 and the top plate 13 are integrally processed and formed.

[0056] In this embodiment, the detector 3 is placed above the bearing assembly 2 and is detachably mounted on the top mounting seat 14. The detector 3 can adopt various detection equipment such as projection detection, laser detection or probe detection in the prior art.

[0057] In this embodiment, it is further preferred that a mounting groove 51 is provided on the top mounting seat 5, the mounting groove 51 is extended in the front-to-back direction, and is open at least on the front end surface, the detector 3 is inserted into the mounting groove 51 from the front end opening of the mounting groove 51 for installation, the longitudinal section shape of the mounting groove 51 is adapted to the shape of the detector 3, and the longitudinal section shape of the mounting groove 51 is preferably rectangular, the top of the detector 3 abuts against the top wall of the mounting groove 51, and at least two groups of elastic clamping components 6 are installed at the bottom of the detector 3, and the detector 3 is elastically clamped and fixed in the mounting groove 51 by at least two groups of elastic clamping components 6. In this embodiment, four groups of elastic clamping components 6 are preferably installed, which are installed at the positions below the four corners of the detector 3.

[0058] The detector 3 adopts the above-mentioned installation structure, which can not only stably fix the detector 3 and ensure the accuracy during detection, but also facilitate the installation and removal of the detector 3, solving the problem in the prior art that when replacing the detector 3, the entire detection device needs to be replaced, which wastes resources. At the same time, by fixing the detector 3 in this elastic clamping manner, the size of the installation slot 51 can be larger than the detector 3, so that detectors 3 of different specifications and sizes can be installed in the installation slot 51, and the installation of the detector 3 is not limited by the installation conditions, which increases the versatility of the detection device.

[0059] In this embodiment, it is further preferred that the elastic clamping assembly 6 includes a limit rod 61, a spring 62 and a first clamping plate 63, and the bottom wall of the mounting groove 51 has an opening (not shown in the figure) exposing the detection area of ​​the detector 3. The bottom of the limit rod 61 is installed on the bottom wall of the mounting groove 51, and the spring 62 is mounted on the limit rod 61. The top of the spring 62 and the limit rod 61 are connected to the first clamping plate 63. The two first clamping plates 63 on the same side can be connected into an integrated structure, and the detector 3 is supported above the first clamping plate 63 after insertion.

[0060] The detector 3 is installed in the installation groove 51 so that the top of the detector 3 abuts against the top wall of the installation groove 51, and the bottom of the detector 3 abuts against the first clamping plate 63 respectively. The first clamping plate 63 clamps the detector 3 under the action of the limit rod 61 and the spring 62 respectively, that is, the detector 3 is elastically clamped between the first clamping plate 63 and the top wall of the installation groove 51.

[0061] In this embodiment, in order to simplify the structure of the top mounting seat 5, it is further preferred that the bottom wall of the mounting groove 51 is composed of horizontal mounting plates 52 on both sides, and the space between the two horizontal mounting plates 52 forms an opening for avoiding the detection area of ​​the detector 3. Four sets of elastic clamping components 6 are respectively installed on the two horizontal mounting plates 52.

[0062] In this embodiment, the bearing assembly 2 includes a bearing plate 21 and a lifting mechanism 22 installed below the bearing plate 21. The test piece is placed on the bearing plate 21 during testing, which is conducive to protecting the stability of the test piece during testing and ensuring the testing accuracy. In order to facilitate the placement of various test pieces, the bearing plate 21 preferably adopts a square flat plate structure, and the area of ​​the bearing plate 21 is smaller than the area of ​​the operating table 11. Of course, the bearing plate 21 can also adopt other shapes such as a circular plate.

[0063] In this embodiment, preferably, the lifting mechanism 22 includes at least two second electric telescopic rods 221 installed at the left and right ends of the bottom of the carrier plate 21, and the bottom of the second electric telescopic rods 221 is fixedly installed on the operating table 11 of the operating table 1. The second electric telescopic rods 221 can be used to adjust the vertical height of the carrier plate 21, that is, to adjust the placement height of the part to be detected. The placement height of the part to be detected needs to ensure that during the detection, the detector 3 can accurately detect the outer contour size of the part to be detected and the size of the holes, grooves and other structures that need to be detected on the detection surface. At the same time, it is also convenient for the part to be detected to be lifted and rotated to convert the detection surface, and it will not touch the detector 3 during rotation.

[0064] In the present embodiment, it is further preferred that a support plate 222 is installed at the top end of the second electric telescopic rod 221, and the bearing plate 21 is fixedly installed on the support plates 222 on both sides. The function of the support plates 222 is to increase the contact area between the lifting mechanism 22 and the bearing plate 21, which is beneficial for the bearing plate 21 to be able to rise and fall smoothly, and at the same time ensure that no deflection occurs during the lifting process.

[0065] In this embodiment, the clamping assembly 4 includes two groups, and the two groups of clamping assemblies 4 are installed on the operating table 11 of the operating table 1, and are symmetrically installed on both sides of the bearing plate 21 in the bearing assembly 2, and the piece to be detected is clamped between the two groups of clamping assemblies 4. The clamping assembly 4 is configured to clamp the piece to be detected for horizontal movement, lifting movement and rotation, so that different detection surfaces of the piece to be detected can be placed in the detection area of ​​the detector 3. In this way, when it is necessary to detect different sizes of the piece to be detected, it is only necessary to operate the clamping assembly 4 to drive the piece to be detected to move horizontally and flip, and there is no need to manually cooperate with the detector 3 for detection, which greatly improves the detection efficiency and detection safety, and also reduces the labor intensity of manual operation.

[0066] In this embodiment, preferably, the two groups of clamping assemblies 4 have the same structure, and the clamping assemblies 4 include a first electric telescopic rod 41 that can be telescopic in the vertical direction, and the bottom of the first electric telescopic rod 41 is fixed on the operating table 11. By operating the first electric telescopic rod 41, the clamping height of the clamping assembly 4 can be adjusted according to the outer contour shape of the part to be detected. A mounting block 42 is installed on the top of the first electric telescopic rod 41, and the mounting block 42 preferably adopts a cubic structure. An electric telescopic push rod 43 that can be telescopic in the horizontal direction is installed on the side of the mounting block 42, and the electric telescopic push rods 43 on both sides are installed oppositely. A rotating mechanism 44 is installed at the front end of the electric telescopic push rod 43 (i.e., the end away from the mounting block 42), and the front end of the rotating mechanism 44 (i.e., the end away from the electric telescopic push rod 43) is fixedly installed with a second clamping plate 45, and the second clamping plates 45 in the two groups of clamping assemblies 4 clamp the middle part to be detected from both sides. By operating the rotating mechanism 44, the second clamping plate 45 can be driven to rotate, thereby driving the middle part to be detected to rotate.

[0067] By operating the electric telescopic push rods 43 on both sides to change the clamping spacing of the device, the device can firmly clamp the middle part to be detected, and can clamp and fix parts of different sizes to be detected, thereby improving the application range of the detection device, and will not damage the parts to be detected due to excessive force. At the same time, after clamping, the detection personnel can also operate the electric telescopic push rods 43 on both sides to move synchronously, so that the clamped part to be detected in the middle can be translated to the left or right, so as to adjust different detection surfaces (i.e., different detection areas) in the length direction to enter the detection area of ​​the detector 3, so that the device can also be used to detect workpieces with longer lengths (such as beams, etc.), making the application range of the device wider.

[0068] In this embodiment, the corresponding electric telescopic push rod 43 can be selected according to the length of the detection member and the required maximum moving distance, so that the maximum telescopic distance of the electric telescopic push rod 43 can meet the movement requirements of the detection member.

[0069] In this embodiment, the shape of the second clamping plate 45 is preferably a flat plate, which can be applied to any shape of the to-be-detected part. Of course, the shape of the second clamping plate 45 can also be a shape that follows the outer contour of the to-be-detected part, such as an arc. In order to enable the second clamping plate 45 to clamp the to-be-detected parts of different shapes in the middle more stably. In this embodiment, it is further preferred that the second clamping plate 45 is installed at the front end of the rotating mechanism 44 in a detachable structure, and the inspector can replace the second clamping plate 45 of different shapes according to the shape of the outer contour of the to-be-detected part.

[0070] In this embodiment, it is further preferred that an anti-skid pad (not shown in the figure) is installed on one side of the second clamping plate 45 away from the rotating shaft 442, and the anti-skid pad is used to contact the to-be-detected member, and the anti-skid pad can be a rubber pad or a nylon pad with a plurality of protrusions on the surface, etc. This can ensure that the surface of the to-be-detected member will not be damaged during clamping, and at the same time, the friction between the second clamping plate 45 and the to-be-detected member can be increased, so that the to-be-detected member will not fall off during rotation and movement, thereby ensuring the safety of the detection operation.

[0071] In this embodiment, it is further preferred that the rotating mechanism 44 includes a motor 441 and a rotating shaft 442, one end of the motor 441 is fixedly mounted on the front end of the push rod of the electric telescopic push rod 43, the output end of the motor 441 is fixedly connected to the rotating shaft 442, and the second clamping plate 45 is mounted on the front end of the rotating shaft 442. When the electric telescopic push rod 43 is extended and retracted, the motor 441 and the rotating shaft 442 are driven to move left and right in the horizontal direction to clamp the middle part to be detected. At the same time, after clamping, the detection personnel can drive the clamped part to be detected in the middle to flip forward and reverse by operating the forward and reverse rotation of the motor 441 to adjust different detection surfaces to enter the detection area of ​​the detector 3, thereby improving the application range and detection range of the detection device.

[0072] In this embodiment, two groups of support parts 7 are installed on both sides below the operating table 1. The support parts 7 can adopt the structure of support columns or the structure of support plates with a certain thickness. The bottom of the support parts 7 is fixed to the ground by bolts.

[0073] In this embodiment, it is further preferred that a retractable storage box 8 is installed between the two groups of support parts 7, and the tools required for detection can be placed in the storage box 8, which is convenient for the detection personnel to take and store, thereby improving the practicality of the device. Specifically, a fixed frame 9 is fixed between the two groups of support parts 7. The fixed frame 9 is a box-shaped structure as a whole, and the front end is open. The storage box 8 can be retracted and installed in the fixed frame 9, and the two sides of the storage box 8 are slidably connected to the inner side walls of the two sides of the fixed frame 9. For example, the sliding connection can be achieved by installing a slide rail assembly, so that the pulling and pulling of the storage box 8 is very smooth and convenient. A handle 10 is installed on the front side wall of the storage box 8 to facilitate the pulling and pulling of the storage box 8.

[0074] The present invention also provides a detection method using the size detection device as described above, comprising the following steps:

[0075] S1. Install the detector 3 in the top mounting seat 5, place the object to be detected on the bearing assembly 2, and operate the clamping assembly 4 to clamp the object to be detected from both ends.

[0076] Specifically, the detector 3 is installed in the mounting groove 51 of the top mounting seat 5, so that the top of the detector 3 abuts against the top wall in the mounting groove 51, and the bottom of the detector 3 abuts against the first clamping plates 63 on both sides. The first clamping plates 63 clamp and fix the detector 3 under the action of the limit rod 61 and the spring 62 respectively.

[0077] Place the piece to be tested on the carrying plate 21 so that the first testing surface of the piece to be tested corresponds to the detector 3 above, then start the first electric telescopic rod 41 in the clamping assemblies 4 on both sides, adjust the clamping height, and after adjusting to the required height, start the electric telescopic push rods 43 on both sides. Through the setting of the electric telescopic push rods 43, the second clamping plate 45 is driven to move in the horizontal direction, and the clamping distance between the two second clamping plates 45 is adjusted, so that the device can clamp and fix the pieces to be tested of different sizes.

[0078] S2. Control the detector 3 to detect the size of the first detection surface.

[0079] S3. After the test is completed, the clamping assembly 4 is operated to lift the test piece away from the carrying assembly 2, and the clamping assembly 4 is controlled to rotate and / or move horizontally to the second test surface to be placed in the test area of ​​the tester 3, and the clamping assembly 4 is operated to make the test piece fall on the carrying assembly 2 again.

[0080] Specifically, after the detection is completed, when it is necessary to detect different positions of the inspected piece, the first electric telescopic rods 41 on both sides are started to lift the inspected piece upward and away from the supporting plate 21, and then the motor 441 is started to drive the rotating shaft 442 and the second clamping plate 45 to rotate, thereby driving the inspected piece to be flipped and adjusting the second detection surface to correspond to the detection area of ​​the detector 3 above.

[0081] Alternatively, according to the detection requirements, after the part to be detected is lifted up and separated from the supporting plate 21, the electric telescopic push rods 43 on both sides are controlled to move synchronously to achieve the horizontal movement of the part to be detected so that the size required to be detected on the second detection surface is placed within the detection area of ​​the detector 3.

[0082] S4, controlling the detector 3 to detect the size on the second detection surface.

[0083] S5. Repeat the above steps S3 and S4, and change the detection surface in turn for detection, until all the required detection dimensions are detected, and then remove the object to be detected from the device.

[0084] Embodiment 2:

[0085] The difference from the first embodiment is that, in this embodiment, it is further preferred that the bottom of the clamping assembly 4 is connected to the operating table 11 of the operating table 1 through a movable mechanism (not shown in the figure), and the movable mechanism is constructed to enable the clamping assembly 4 to move in the horizontal direction relative to the operating table 11 of the operating table 1.

[0086] In this embodiment, the movable mechanism can move the clamping assembly 4 left and right in the horizontal direction. In this way, on the basis of relying solely on the maximum telescopic distance of the electric telescopic push rod 43 in Embodiment 1, the moving distance of the clamping assembly 4 in the horizontal direction can be further increased, thereby making the detection device suitable for longer workpieces (such as beams, etc.). By moving left and right, the detection device can detect various sizes of longer workpieces in different length segments.

[0087] In this embodiment, the movable mechanism can also be constructed to enable the clamping assembly 4 to move back and forth in the horizontal direction, so that the detection device can be suitable for workpieces with a wider width. By moving back and forth, the detection device can detect various sizes of workpieces with a wider width within different width ranges.

[0088] The above-mentioned movable mechanism can adopt the structure of a slide rail pair, and a slide rail is set on the operating table 11. The slide rail can be extended in the left-right direction or in the front-back direction as needed, and the slide rails extending in the left-right direction and the front-back direction can also be set at the same time. A matching slider is set at the bottom of the first electric telescopic rod 41, and the first electric telescopic rod 41 moves along the slide rail to achieve left-right movement. The first electric telescopic rod 41 is further connected to a driving motor, and the driving motor drives the first electric telescopic rod 41 to move along the slide rail.

[0089] For the aforementioned workpieces of longer length, the bearing plate 21 in the bearing assembly 2 can also be appropriately constructed into a retractable structure, so that detection pieces of different lengths can be stably placed on the bearing plate 21, thereby ensuring the detection accuracy of the detection pieces.

[0090] After adopting the above technical solution, the benefits are:

[0091] 1. The invention can realize the dimensional detection of various parts of different shapes, avoiding the limitation of making different detection devices for parts of different sizes and shapes. The device has strong versatility, greatly improves the detection efficiency and safety, and reduces the labor intensity of the detection operation.

[0092] 2. During the detection process, the present invention can realize the free flipping and horizontal movement of the detection part according to the detection needs. After one clamping, the detection part can be fully detected, which further improves the detection efficiency and safety and reduces the labor intensity of the detection operation.

[0093] 3. The present invention realizes the fastening of the detection part during detection, thereby ensuring the detection accuracy.

[0094] 4. The present invention facilitates installation and disassembly of the detector, solving the problem in the prior art that when replacing the detector, the entire detection device needs to be replaced, thus wasting resources.

[0095] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above in the preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. A size detection device, characterized in that: include: Operation table; A bearing assembly, mounted on the operating table, for bearing the part to be tested; A detector is placed above the bearing assembly and is detachably mounted on a top mounting seat, and the top mounting seat is fixedly mounted on the operating table; The clamping assembly includes two groups, which are symmetrically installed on the operating tables on both sides of the supporting assembly. The workpiece to be detected is clamped between the two groups of the clamping assemblies. The clamping assembly is constructed to clamp the workpiece to be detected for horizontal movement, lifting movement and rotation, so that the detection surface of the workpiece to be detected is placed within the detection area of ​​the detector.

2. The size detection device according to claim 1, characterized in that: A mounting groove is provided on the top mounting seat, and the mounting groove is opened at least on the front end surface for inserting the detector. The top of the detector abuts against the top wall of the mounting groove, and at least two groups of elastic clamping components are provided at the bottom of the detector for clamping and fixing the detector in the mounting groove.

3. The size detection device according to claim 2, characterized in that: The elastic clamping assembly includes a limit rod, a spring and a first clamping plate. The bottom wall of the mounting groove has an opening that exposes the detection area of ​​the detector. The bottom of the limit rod is installed on the bottom wall. The spring is sleeved on the limit rod. The top of the spring and the limit rod are connected to the first clamping plate. The detector is clamped between the first clamping plate and the top wall of the mounting groove.

4. The size detection device according to claim 3, characterized in that: The bottom wall of the mounting groove is composed of horizontal mounting plates on both sides, and the space between the two horizontal mounting plates forms an opening to avoid the detection area of ​​the detector.

5. The size detection device according to claim 1, characterized in that: The clamping assembly includes a first electric telescopic rod that can be extended and retracted in the vertical direction, the bottom of the first electric telescopic rod is installed on the operating table, a mounting block is installed on the top of the first electric telescopic rod, an electric telescopic push rod that can be extended and retracted in the horizontal direction is installed on the side of the mounting block, a rotating mechanism is installed at the front end of the electric telescopic push rod, and a second clamping plate is fixedly installed at the front end of the rotating mechanism. The second clamping plates in the two groups of the clamping assemblies clamp the middle part to be detected from both sides.

6. The size detection device according to claim 5, characterized in that: The rotating mechanism comprises a motor and a rotating shaft, the output end of the motor is connected to the rotating shaft, and the second clamping plate is installed at the front end of the rotating shaft.

7. The size detection device according to claim 1, characterized in that: The bottom of the clamping assembly is connected to the table top of the operating table via a movable mechanism, and the movable mechanism is configured to enable the clamping assembly to move in a horizontal direction relative to the table top of the operating table.

8. The size detection device according to claim 1, characterized in that: The bearing assembly includes a bearing plate and a lifting mechanism installed below the bearing plate, the lifting mechanism includes at least two second electric telescopic rods installed at the bottom of the bearing plate, and the bottom of the second electric telescopic rods is fixedly installed on the operating table.

9. The size detection device according to any one of claims 1 to 8, characterized in that: Two groups of support parts are installed on both sides below the operating table, and a pull-out storage box is installed between the two groups of support parts.

10. A detection method using the size detection device according to any one of claims 1 to 9, characterized in that: The steps include: S1. Install the detector in the top mounting seat, place the object to be detected on the bearing assembly, operate the clamping assembly to clamp the object to be detected from both ends, and place the first detection surface of the object to be detected within the detection area of ​​the detector; S2, controlling the detector to detect the size on the first detection surface; S3, after the test is completed, the clamping assembly is operated to lift the test piece away from the carrying assembly, the clamping assembly is controlled to rotate and / or move horizontally until the second test surface of the test piece is placed in the test area of ​​the detector, and the clamping assembly is operated to make the test piece fall on the carrying assembly again; S4, controlling the detector to detect the size on the second detection surface; S5. Repeat the above steps S3 and S4, and change the detection surface in turn for detection.

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