CN117629017B - Frame cross beam size detection device - Google Patents
Frame cross beam size detection device Download PDFInfo
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- CN117629017B CN117629017B CN202410100877.1A CN202410100877A CN117629017B CN 117629017 B CN117629017 B CN 117629017B CN 202410100877 A CN202410100877 A CN 202410100877A CN 117629017 B CN117629017 B CN 117629017B
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- 238000001514 detection method Methods 0.000 title claims abstract description 166
- 230000000712 assembly Effects 0.000 claims abstract description 5
- 238000000429 assembly Methods 0.000 claims abstract description 5
- 238000013016 damping Methods 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000005389 magnetism Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The invention relates to the technical field of metering devices, and particularly discloses a vehicle frame cross beam size detection device, wherein a placement area is formed on the upper surface of a detection seat, detection assemblies are respectively arranged on two sides of the detection seat in the length direction, a through groove extending along the height direction of the detection box is formed on the side surface of the detection box, which is away from the placement area, and a second scale mark is arranged on the through groove of the detection box; the detection box is internally provided with a shell, a positioning plate and a first screw rod, the first screw rod extends along the height direction of the detection box, the positioning plate is in limit sliding connection with the detection box along the height direction of the detection box, and the first screw rod is in threaded connection with the positioning plate; the interior of the casing is provided with a conical body which can extend to the placement area, one surface of the conical body, which is away from the placement area, is provided with a first scale, the first scale can extend out of the casing and is in sliding fit with the through groove, and the side surface of the casing, which is away from the placement area, is provided with a pointing piece. The size detection device for the frame cross beam can detect the conditions of the larger aperture of the hole to be detected and the deviation of the height of the opening.
Description
Technical Field
The invention relates to the technical field of metering devices, in particular to a device for detecting the size of a vehicle frame cross beam.
Background
The frame is a framework of an automobile and consists of a main beam, a cross beam, side beams, lifting lugs, a front axle, a rear axle and the like. The cross members are transverse structural members that connect the main beams for stiffening the frame and stability. They are typically located at the front, middle and rear of the frame and can distribute and transmit forces and impacts from the wheel suspension system. For the frame with the bearing structure, a riveting process is mainly adopted, a cross beam is riveted on the left longitudinal beam and the right longitudinal beam through rivets, and riveting holes are formed at two ends of the cross beam and correspond to the riveting holes of the longitudinal beams. If the hole position deviation, the smaller hole diameter or the larger hole opening height of the beam riveting hole are caused, the beam is difficult to assemble, the operation efficiency is affected, larger internal stress can occur after riveting, and the problems of rivet fracture and the like are easily caused when a vehicle runs; the larger aperture can lead to large frame width dimension error, and the smaller aperture height can lead to frame distortion after riveting. In order to control the hole position precision and the opening height of the cross beam and ensure the cross beam to be qualified, the hole position of the cross beam needs to be detected.
The Chinese patent of invention with publication number of CN113074604B discloses a vehicle frame beam detection tool, wherein the relative position and the aperture of a first detection pin on a first detection plate are respectively set according to the relative position and the aperture of a hole to be detected of a standard vehicle frame beam, during detection, one of the first detection pins is firstly installed to the first detection plate and inserted into the hole to be detected corresponding to the vehicle frame beam, if the first detection pin cannot be inserted into the hole to be detected, the position of the vehicle frame beam is adjusted to detect whether the aperture is qualified, then other first detection pins are installed to the first detection plate and inserted into the hole to be detected corresponding to the vehicle frame beam, and meanwhile, the relative position and the aperture of the hole to be detected are detected to be qualified. However, the vehicle frame cross beam detecting tool can only detect the condition that the aperture of the hole to be detected is smaller, and cannot detect the condition that the aperture of the hole to be detected is larger and the height deviation of the opening is caused.
Disclosure of Invention
The invention provides a vehicle frame cross beam size detection device, and aims to solve the problems that in the related art, a vehicle frame cross beam detection tool cannot detect out that the aperture of a hole to be detected is bigger and the height of an opening is deviated.
The invention discloses a vehicle frame cross beam size detection device, which comprises a detection seat, wherein a placement area is formed on the upper surface of the detection seat, the placement area is used for placing a vehicle frame cross beam, detection components are respectively arranged on two sides of the detection seat in the length direction, each detection component comprises a detection box, a through groove extending along the height direction of the detection box is formed in the side surface of the detection box, which is away from the placement area, and a second scale mark is arranged at the through groove of the detection box; the detection box is internally provided with a shell, a positioning plate and a first screw rod, the first screw rod extends along the height direction of the detection box, the positioning plate is in limit sliding connection with the detection box along the height direction of the detection box, the first screw rod is in threaded connection with the positioning plate, and a first elastic piece is arranged between the positioning plate and the shell; be equipped with in the cover shell can stretch to place the conical body in district, the conical body with be equipped with the second elastic component between the cover shell, the conical body deviates from place the one side in district and be equipped with first scale, first scale can stretch out the cover shell, and with logical groove sliding fit, the cover shell deviates from place the side in district and be equipped with the directive piece, the directive piece with logical groove sliding fit.
Preferably, the first screw is provided with a rotating handle at the top of the detection box.
Preferably, two casings are arranged in the detection box, and the two casings are distributed in the height direction of the detection box; the detection assembly comprises two detection boxes which are arranged side by side; the number of the detection assemblies is four, and the four detection assemblies are distributed on two sides of the detection seat in the length direction.
Preferably, the detection assembly further comprises a guide member arranged side by side with the two detection boxes, the opposite surfaces of the two detection boxes are respectively provided with magnetism, and the guide member and the opposite surfaces of the detection boxes adjacent to the guide member are respectively provided with magnetism.
Preferably, the guide piece is located at two ends of the length direction of the detection seat, a stop block is arranged on the side surface, close to the placement area, of the guide piece, the stop block is elastically connected with the guide piece, and the guide piece is fixedly connected with the handle.
Preferably, the detection seat is provided with two sliding rails, the two sliding rails are located on two sides of the length direction of the placement area, the sliding rails extend along the length direction of the detection seat, the side surface, deviating from the placement area, of the sliding rails is provided with a third scale mark, and the guide piece and the detection box are erected on the sliding rails through two indication rods and are in sliding fit with the sliding rails.
Preferably, the detection box adjacent to the guide member is internally provided with a limiting member, the limiting member is made of magnetic metal, the limiting member can be adsorbed and extended by the detection box spaced from the guide member, and the limiting member is provided with a damping surface which can be abutted to the first graduated scale.
Preferably, the damping surface comprises a plurality of damping strips extending along the height direction of the detection box, and the damping strips are made of rubber.
Preferably, the device further comprises a straightening assembly, the straightening assembly comprises straightening blocks, a pushing plate and a second lead screw, the straightening blocks are in a cuboid shape, the number of the straightening blocks is two, the two straightening blocks are located in the placement area, the second lead screw is located between the two straightening blocks and in threaded connection with the pushing plate, the pushing plate is in sliding connection with the detection seat along the limit of the length direction of the detection seat, and a crank is arranged at one end of the second lead screw.
Preferably, the automatic adjusting device further comprises a distance adjusting assembly, wherein the distance adjusting assembly comprises a third screw rod, the screw threads at two ends of the third screw rod are opposite in direction, the third screw rod is in threaded connection with the two sliding rails, and a knob is arranged at one end of the third screw rod.
By adopting the technical scheme, the invention has the beneficial effects that: the detection body which can extend into the hole to be detected is arranged to be conical, the situation that the aperture of the hole to be detected is smaller can be detected by measuring the length of the distance that the conical body extends into the hole to be detected, the situation that the aperture of the hole to be detected is larger can be detected, and the aperture deviation can be detected; setting the height of the positioning plate according to the standard height of the hole to be measured, and measuring the height deviation of the conical body after the conical body stretches into the hole to be measured to detect whether the height of the opening meets the detection standard or not and determine the height deviation of the opening; the detection value is more accurate and comprehensive, and the hole to be detected is conveniently trimmed according to the detection value after detection, and the frame cross beam which does not meet the detection standard is reused.
Drawings
Fig. 1 is a schematic structural diagram of a vehicle frame cross member size detection device according to an embodiment.
Fig. 2 is a schematic diagram of a first structure of a detection assembly according to an embodiment.
Fig. 3 is a schematic diagram of a second structure of the detection assembly according to an embodiment.
Fig. 4 is a schematic structural diagram of a cartridge according to an embodiment.
FIG. 5 is a schematic structural view of a damping surface according to an embodiment.
Fig. 6 is a schematic structural diagram of a distance adjusting assembly according to an embodiment.
Reference numerals:
10. a detection seat; 110. a frame cross member; 120. a slide rail; 1210. a third scale mark; 20. a detection box; 220. a second graduation mark; 230. a casing; 2310. a pointing member; 240. a positioning plate; 250. a first lead screw; 2510. a rotating handle; 260. a first elastic member; 30. a cone; 310. a first scale; 320. a second elastic member; 40. a guide member; 410. a stop block; 420. a handle; 50. an indication rod; 60. a limiting piece; 610. damping surface; 70. straightening blocks; 710. a push plate; 720. a second lead screw; 7210. a hand crank; 80. a third lead screw; 810. and (5) a knob.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
Example 1
As shown in fig. 1 to 5, the vehicle frame cross beam size detection device of the present invention includes a detection seat 10, detection components and a straightening component, wherein a placement area is formed on the upper surface of the detection seat 10, the placement area is used for placing the vehicle frame cross beam 110, the number of the detection components is four, and the four detection components are distributed on two sides of the length direction of the detection seat 10.
As shown in fig. 2, the detection assembly includes two detection boxes 20 arranged side by side, the side surface of the detection box 20 facing away from the placement area is provided with a through groove extending along the height direction of the detection box 20, the detection box 20 is provided with a second scale line 220 at the through groove, and the second scale line 220 is used for reading the height deviation of the open hole. In this embodiment, the detection box 20 has a rectangular parallelepiped shape, and the positioning of the detection box 20 in the length direction of the detection seat 10 is determined according to the position of the opening of the frame beam 110.
As shown in fig. 3 and 4, two casings 230, two positioning plates 240 and two first lead screws 250 are arranged in the detection box 20, the two casings 230 and the two positioning plates 240 are distributed in the height direction of the detection box 20, the two positioning plates 240 are respectively positioned at the upper end and the lower end of the two casings 230, the two first lead screws 250 respectively extend along the height direction of the detection box 20 and are positioned at two sides of the two casings 230, the two first lead screws 250 respectively pass through the two positioning plates 240, and the positioning plates 240 are in limit sliding connection with the detection box 20 along the height direction of the detection box 20; one of the first lead screws 250 is in threaded connection with the upper positioning plate 240 and is in rotational connection with the lower positioning plate 240, and the other first lead screw 250 is in threaded connection with the lower positioning plate 240 and is in rotational connection with the upper positioning plate 240; a first elastic member 260 is disposed between the upper positioning plate 240 and the upper casing 230, and a first elastic member 260 is disposed between the lower positioning plate 240 and the lower casing 230, and the first elastic member 260 is used for helping the casing 230 to reset. The first screw 250 is used for adjusting the height of the positioning plate 240, and the height of the positioning plate 240 is set according to the standard height of the hole to be measured. Hereby is achieved that one cartridge 20 is provided with two sleeves 230 in its height direction for facilitating the detection of the frame rail 110 provided with two rows of holes to be tested.
As shown in fig. 2, 3 and 4, a cone 30 capable of extending to a placement area is disposed in the casing 230, a second elastic member 320 is disposed between the cone 30 and the casing 230, the cone 30 is used for extending into a hole to be measured, the second elastic member 320 is used for helping the cone 30 to reset, a first scale 310 is disposed on a surface of the cone 30 facing away from the placement area, the first scale 310 can extend out of the casing 230 and is slidably engaged with the through groove, the first scale 310 is used for reading the deviation of the aperture, a pointing member 2310 is disposed on a side of the casing 230 facing away from the placement area, the pointing member 2310 is slidably engaged with the through groove, and the pointing member 2310 is used for indicating a reading value of the second scale line 220.
As shown in fig. 2, the first screw 250 is provided with a rotation handle 2510 at the top of the cartridge 20. The rotation handle 2510 facilitates the rotation of the first screw 250 by a worker, thereby adjusting the height of the positioning plate 240.
As shown in fig. 1, the alignment assembly includes alignment blocks 70, a push plate 710 and a second screw rod 720, the alignment blocks 70 are in a cuboid shape, the alignment blocks 70 are used for propping against the inner side wall of the frame beam 110, the number of the alignment blocks 70 is two, the two alignment blocks 70 are located in a placement area, the second screw rod 720 is located between the two alignment blocks 70 and is in threaded connection with the push plate 710, the push plate 710 is in limited sliding connection with the detection seat 10 along the length direction of the detection seat 10, and a crank 7210 is arranged at one end of the second screw rod 720. The frame beam 110 to be detected may be extruded or impacted in the production and carrying processes, so that bending deformation is caused, and accuracy of a detection result is affected, therefore, before detection, the frame beam 110 can be straightened, the frame beam 110 is placed in a placement area and is propped against the push plate 710, and by rotating the hand crank 7210, the push plate 710 pushes the frame beam 110 to reciprocate relative to the straightening block 70, and straightening and correcting are carried out on the frame beam 110, so that accuracy of detection values is guaranteed.
The size detection device for the vehicle frame cross beam is characterized in that a detection body which can extend into a hole to be detected is arranged in a conical shape, the situation that the aperture of the hole to be detected is smaller can be detected by measuring the length of the distance that the conical body 30 extends into the hole to be detected, the situation that the aperture of the hole to be detected is larger can also be detected, and the aperture deviation can be detected; setting the height of the positioning plate 240 according to the standard height of the hole to be measured, and measuring the height deviation of the cone 30 after extending into the hole to be measured to determine whether the height of the opening meets the detection standard or not and determine the height deviation of the opening; the detection value is more accurate and comprehensive, and the hole to be detected is conveniently trimmed according to the detection value after detection, and the frame cross beam 110 which does not meet the detection standard is reused.
Example two
As shown in fig. 1 and 3, in comparison with the first embodiment, the detection assembly further includes a guide member 40 disposed side by side with the two detection cartridges 20, the opposite surfaces of the two detection cartridges 20 having magnetism respectively, and the guide member 40 and the opposite surfaces of the detection cartridges 20 adjacent thereto having magnetism respectively; the guide piece 40 is located at two ends of the length direction of the detection seat 10, a stop block 410 is arranged on the side surface of the guide piece 40, which is close to the placement area, the stop block 410 is elastically connected with the guide piece 40, and the guide piece 40 is fixedly connected with a handle 420. The guide member 40 is used to drive the two detecting boxes 20 to move, and the stop block 410 can spring towards the placement area, and is used to abut against the end of the frame beam 110, so as to play a role in positioning.
As shown in fig. 1, fig. 2 and fig. 3, the detection seat 10 is provided with two sliding rails 120, the two sliding rails 120 are located at two sides of the length direction of the placement area, the sliding rails 120 extend along the length direction of the detection seat 10, a third scale mark 1210 is arranged on the side surface of the sliding rail 120, which is away from the placement area, the third scale mark 1210 is used for reading the deviation of a hole to be detected along the length direction of the frame cross beam 110, the guide member 40 and the detection box 20 are all erected on the sliding rails 120 through two indication rods 50 and are in sliding fit with the sliding rails 120, and the indication rods 50 are used for indicating the reading value of the third scale mark 1210 and preventing the guide member 40 and the detection box 20 from falling off from the sliding rails 120.
As shown in fig. 2, 3 and 5, a limiting piece 60 is arranged in the detection box 20 adjacent to the guide piece 40, the limiting piece 60 is made of magnetic metal, the limiting piece 60 and the detection box 20 are in limiting sliding connection along the length direction of the detection seat 10, the limiting piece 60 can be adsorbed and extended by the detection box 20 spaced from the guide piece 40, and the limiting piece 60 is provided with a damping surface 610 capable of being abutted against the first scale 310; the damping surface 610 includes a plurality of damping strips extending along the height direction of the detection box 20, the damping strips are made of rubber, and the damping surface 610 is used for preventing the cone 30 from protruding.
As shown in fig. 1 and 6, the device further comprises two distance adjusting components, the two distance adjusting components are respectively located at two ends of the length direction of the detection seat 10, the distance adjusting components comprise a third screw 80, the screw directions of two ends of the third screw 80 are opposite, the third screw 80 is in screw connection with the two sliding rails 120, and a knob 810 is arranged at one end of the third screw 80. The third screw 80 is configured as a bidirectional screw, so that the two slide rails 120 can move synchronously relative to the central axis of the detection seat 10, and the frame cross beam size detection device is suitable for detecting frame cross beams 110 with different specifications.
In the first embodiment, the vehicle frame beam size detection device can detect the deviation of the aperture diameter of the hole to be detected and the deviation of the height of the opening, and cannot detect the deviation of the hole to be detected along the length direction of the vehicle frame beam 110.
For this reason, in this embodiment, the detection cartridges 20 are set in a separable state, and when two detection cartridges 20 are attached to the guide member 40 by being adsorbed to each other, the stopper 60 is not protruded by the abutment of the detection cartridge 20, and the cone 30 in the detection cartridge 20 adjacent to the guide member 40 is blocked by the damping surface 610 from being protruded; when the guide piece 40 drives the two detection boxes 20 to move towards the end part of the frame cross beam 110 in the length direction, the conical body 30 in the detection box 20 spaced from the guide piece 40 firstly stretches into the corresponding hole to be detected, and the movement is stopped; the guide member 40 drives the detection box 20 adjacent to the guide member 40 to move continuously, at this time, the limiting member 60 is magnetically attracted by the detection box 20 spaced from the guide member 40 to extend, and the conical body 30 in the detection box 20 adjacent to the guide member 40 can extend into the corresponding hole to be detected and stop moving; the guide 40 continues to move until the stop block 410 springs against the end of the frame rail 110; the values indicated by the guide 40 and the indication bars 50 of the two cartridges 20 are read, and compared with the standard values, it is possible to determine whether the hole pitch of the hole to be measured along the length direction of the cross member 110 meets the detection standard, and to determine the deviation.
The rest of the present embodiment can refer to the first embodiment, and will not be described herein.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (10)
1. The utility model provides a frame cross beam size detection device, includes detection seat (10), its characterized in that, the upper surface of detection seat (10) forms and places the district, place the district and be used for placing frame cross beam (110), the both sides of the length direction of detection seat (10) are provided with detection subassembly respectively, detection subassembly includes detection box (20), detection box (20) deviate from the side of placing the district has seted up the logical groove that extends along its direction of height, detection box (20) are in logical groove department is equipped with second scale mark (220); the detection box (20) is internally provided with a casing (230), a positioning plate (240) and a first screw (250), the first screw (250) extends along the height direction of the detection box (20), the positioning plate (240) is in limit sliding connection with the detection box (20) along the height direction of the detection box (20), the first screw (250) is in threaded connection with the positioning plate (240), and a first elastic piece (260) is arranged between the positioning plate (240) and the casing (230); be equipped with in the cover shell (230) can stretch to place the conical body (30) in district, conical body (30) with be equipped with second elastic component (320) between cover shell (230), conical body (30) deviate from place the one side in district and be equipped with first scale (310), first scale (310) can stretch out cover shell (230) and with logical groove sliding fit, cover shell (230) deviate from place the side in district and be equipped with direction piece (2310), direction piece (2310) with logical groove sliding fit.
2. The vehicle frame cross member size detection apparatus according to claim 1, wherein the first lead screw (250) is provided with a rotation handle (2510) at the top of the detection box (20).
3. The vehicle frame cross member size detection device according to claim 1, wherein two sleeves (230) are provided in the detection box (20), and the two sleeves (230) are distributed in the height direction of the detection box (20); the detection assembly comprises two detection boxes (20) which are arranged side by side; the number of the detection assemblies is four, and the four detection assemblies are distributed on two sides of the detection seat (10) in the length direction.
4. A vehicle frame cross member dimension detecting device according to claim 3, wherein the detecting assembly further comprises a guide member (40) provided side by side with the two detecting cartridges (20), the opposite faces of the two detecting cartridges (20) are respectively magnetic, and the guide member (40) and the opposite faces of the detecting cartridges (20) adjacent thereto are respectively magnetic.
5. The vehicle frame cross beam dimension detecting device according to claim 4, wherein the guide member (40) is located at two ends of the detecting seat (10) in the length direction, a stop block (410) is arranged on the side surface, close to the placement area, of the guide member (40), the stop block (410) is elastically connected with the guide member (40), and the guide member (40) is fixedly connected with the handle (420).
6. The vehicle frame cross beam size detection device according to claim 4, wherein the detection seat (10) is provided with two sliding rails (120), the two sliding rails (120) are located at two sides of the length direction of the placement area, the sliding rails (120) extend along the length direction of the detection seat (10), a third scale mark (1210) is arranged on the side surface, facing away from the placement area, of the sliding rails (120), and the guide piece (40) and the detection box (20) are both erected on the sliding rails (120) through two indication rods (50) and are in sliding fit with the sliding rails (120).
7. The vehicle frame cross beam dimension detection device according to claim 6, wherein a limiting piece (60) is arranged in the detection box (20) adjacent to the guide piece (40), the limiting piece (60) is made of magnetic metal, the limiting piece (60) can be adsorbed and extended by the detection box (20) spaced from the guide piece (40), and the limiting piece (60) is provided with a damping surface (610) which can be abutted against the first scale (310).
8. The vehicle frame cross member dimension detecting device according to claim 7, wherein the damping surface (610) comprises a plurality of damping strips extending in a height direction of the detecting case (20), and the damping strips are made of rubber.
9. A vehicle frame cross beam size detection apparatus according to any one of claims 1 to 3, further comprising a straightening assembly, wherein the straightening assembly comprises straightening blocks (70), a push plate (710) and a second screw (720), the straightening blocks (70) are in a cuboid shape, the number of the straightening blocks (70) is two, the two straightening blocks (70) are located in the placement area, the second screw (720) is located between the two straightening blocks (70) and is in threaded connection with the push plate (710), the push plate (710) is in limited sliding connection with the detection seat (10) along the length direction of the detection seat (10), and a crank (7210) is arranged at one end of the second screw (720).
10. The vehicle frame cross beam dimension detection device according to claim 6, further comprising a distance adjusting assembly, wherein the distance adjusting assembly comprises a third screw rod (80), the screw threads at two ends of the third screw rod (80) are opposite in direction, the third screw rod (80) is in threaded connection with the two sliding rails (120), and a knob (810) is arranged at one end of the third screw rod (80).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410100877.1A CN117629017B (en) | 2024-01-25 | 2024-01-25 | Frame cross beam size detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410100877.1A CN117629017B (en) | 2024-01-25 | 2024-01-25 | Frame cross beam size detection device |
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| Publication Number | Publication Date |
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| CN117629017A CN117629017A (en) | 2024-03-01 |
| CN117629017B true CN117629017B (en) | 2024-03-29 |
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| CN202410100877.1A Active CN117629017B (en) | 2024-01-25 | 2024-01-25 | Frame cross beam size detection device |
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2024
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| CN117629017A (en) | 2024-03-01 |
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