Welding fixture CCD visual inspection device

Abstract

The invention relates to the technical field of visual inspection, and provides a welding fixture CCD visual inspection device which comprises a base, a supporting mechanism is arranged at the top of the base and comprises supporting plates arranged at the two ends of the top of the base, a horizontal moving mechanism is arranged between the two supporting plates, a visual inspection mechanism is arranged on the horizontal moving mechanism, and the visual inspection mechanism is arranged on the base. The visual detection mechanism is in horizontal sliding fit with the horizontal moving mechanism; a CCD visual detection head is arranged at the bottom of the visual detection mechanism, the CCD visual detection head can be turned over, baffles used for turning over the CCD visual detection head are arranged on the sides, close to each other, of the two supporting plates, and locking mechanisms used for locking the position of the CCD visual detection head are arranged on the two sides of the horizontal moving mechanism. The visual detection mechanism can be driven to move horizontally through the horizontal moving mechanism, a CCD visual detection head of the visual detection mechanism can be driven by a baffle to turn over, the position of the CCD visual detection head can be locked through a locking mechanism, and the requirement for moving and turning over is met.

Description

Technical Field

[0001] The invention relates to the technical field of visual inspection, and in particular to a CCD visual inspection device for a welding fixture. Background Art

[0002] CCD visual inspection is a visual inspection technology that uses a charge-coupled device as a sensor. It scans the object to be inspected through a high-precision camera and can accurately identify and record various common defects. This technology not only improves the accuracy and efficiency of inspection, but also reduces the labor intensity and cost of manual inspection. The prior art patent CN108225214A discloses a CCD visual inspection device and a detection method. The patented industrial camera moves through a moving mechanism, but in the actual process of welding fixture inspection, not only does the camera need to be movable, but it also needs to be flipped to adapt to the inspection of welding fixtures of different shapes. Therefore, it is very important to solve this problem. Summary of the invention

[0003] In view of this, the purpose of the present invention is to propose a welding fixture CCD visual inspection device to solve the problem that in the actual welding fixture inspection process, not only the camera needs to be movable, but also needs to be flipped to adapt to the inspection of welding fixtures of different shapes.

[0004] Based on the above-mentioned purpose, the present invention provides a CCD visual inspection device for a welding fixture, comprising a base, characterized in that a supporting mechanism is arranged on the top of the base, the supporting mechanism comprises supporting plates arranged at both ends of the top of the base, a horizontal moving mechanism is arranged between the two supporting plates, a visual inspection mechanism is arranged on the horizontal moving mechanism, and the visual inspection mechanism cooperates with the horizontal moving mechanism for horizontal sliding; the bottom of the visual inspection mechanism is a CCD visual inspection head, the CCD visual inspection head is flippable, and baffles for flipping the CCD visual inspection head are arranged on the side where the two supporting plates are close to each other, and locking mechanisms for locking the position of the CCD visual inspection head are arranged on both sides of the horizontal moving mechanism.

[0005] Preferably, the horizontal moving mechanism includes a movable threaded rod movably connected to the two support plates, the outer wall of the movable threaded rod is threadedly connected to a movable box, and a sliding groove that runs through the left and right is opened at the bottom of the front side of the movable box; the visual inspection mechanism includes a detection tooth plate slidably connected to the sliding groove, the sliding groove and the detection tooth plate are clearance-matched, the bottom of the detection tooth plate is meshingly connected with a detection gear shaft, the rear side of the detection gear shaft is connected with a detection rotating rod, an active cavity for rotating the detection gear shaft, the detection rotating rod and the detection connecting block is provided in the movable box, a detection through hole is opened at the bottom of the active cavity, the detection connecting block passes downward through the detection through hole to connect to a CCD visual inspection head, the bottom of the detection rotating rod is connected with a detection connecting block, and the CCD visual inspection head is connected to the bottom of the detection connecting block; the baffle and the detection tooth plate are on the same horizontal line; the locking mechanism is located at the rear side of the detection tooth plate to lock its position.

[0006] Preferably, the locking mechanism includes a locking mounting block arranged on the side of the moving box, the locking mounting block is provided with a movable through hole running through the front and back, a locking link is movably inserted into the movable through hole from front to rear, the locking link and the movable through hole are clearance-matched, a locking bevel is arranged at the front end of the locking link, the locking bevel abuts against the surface of the detection tooth plate, a locking limit plate is arranged at the rear end of the locking link, the size of the locking limit plate is larger than the size of the movable through hole, the locking limit plate is located at the rear side of the locking mounting block and abuts against the rear end surface of the locking mounting block; the locking bevel is fixedly connected to one end of a locking spring, the locking spring is sleeved on the locking link, and the other end of the locking spring abuts against the front end surface of the locking mounting block.

[0007] Preferably, the support mechanism includes a motor mounting seat arranged on the side of one of the support plates, a rotating motor is arranged on the top of the motor mounting seat, a movable threaded rod movably passes through the support plate and is fixedly connected to the output shaft of the rotating motor through a coupling; the other end of the movable threaded rod is rotatably connected to the other support plate.

[0008] Preferably, a limiting rod parallel to the movable threaded rod is fixed between the two support plates, and the movable box sliding sleeve is arranged outside the limiting rod.

[0009] Preferably, a limiting through hole is provided on one side of the two support plates that are close to each other, and the two ends of the limiting rod are fixedly connected to the inner walls of the two limiting through holes; a rotating through hole is provided on one side of the two support plates that are close to each other, and the two ends of the movable threaded rod are rotatably connected to the inner walls of the two rotating through holes; a threaded through hole and a connecting through hole are provided on the surface of the movable box, the threaded through hole is threadedly connected to the movable threaded rod, and the limiting rod is slidably connected to the connecting through hole.

[0010] Preferably, the inner wall of the detection gear shaft is movably connected to the outer wall of the detection rotating rod, the outer wall of the detection rotating rod is movably connected to the inner wall of the detection connecting block, and the bottom of the detection connecting block is movably connected to the top of the CCD visual detection head.

[0011] Preferably, locking grooves matching the locking bevel block are evenly distributed on the rear side of the detection tooth plate. When the detection tooth plate moves, the locking bevel block moves in different locking grooves until it stops matching with one of the locking grooves, and the locking spring is always in a compressed state.

[0012] Preferably, the base includes an operating table, four support columns are arranged at the bottom of the operating table, and the four support columns are distributed in a rectangular array about the center of the bottom of the operating table. A base is fixedly welded to the top of the operating table, and the two support plates are fixedly connected to the two ends of the top of the operating table and are adjacent to the base.

[0013] Beneficial effects of the present invention: The present invention can drive the visual inspection mechanism to move horizontally by setting a horizontal moving mechanism, the CCD visual inspection head of the visual inspection mechanism can be flipped by the baffle, and the CCD visual inspection head can be locked in position by the locking mechanism, thus meeting the requirements of mobility and flipping.

[0014] The horizontal moving mechanism of the present invention starts a rotating motor, and the rotating motor rotates through a coupling to drive a moving threaded rod to rotate. The rotating threaded rod drives a moving box to move linearly through the action of threads and the limiting action of a limiting rod. The linear motion of the moving box drives a detection rotating rod to move linearly. The linear motion of the detection rotating rod drives a detection connecting block to move linearly. The linear motion of the detection connecting block drives a CCD visual detection head to move linearly. The linear motion of the CCD visual detection head can perform a comprehensive visual detection on the fixture on the top of the base without moving the fixture, thereby reducing manual workload and bringing convenience to people's use.

[0015] The linear motion of the movable box of the present invention drives the linear motion of the detection tooth plate. When the detection tooth plate moves to the baffle plate, the detection tooth plate is pushed to move linearly in the sliding groove through the interaction with the baffle force. The linear motion of the detection tooth plate drives the detection gear shaft to rotate through the meshing action. The rotation of the detection gear shaft drives the detection rotating rod to rotate. The rotation of the detection rotating rod drives the detection connecting block to rotate. The rotation of the detection connecting block drives the CCD visual detection head to flip, which can change the detection angle of the CCD visual detection head, increase the detection angle, and make the detection more comprehensive.

[0016] The linear motion of the detection tooth plate of the present invention is achieved by moving the locking bevel back and forth in different locking grooves of the detection tooth plate. The locking connecting rod performs repeated back and forth linear motion under the action of the spring until it stops and cooperates with one of the locking grooves to lock the position, thereby preventing the CCD visual detection head from shaking and affecting the detection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 is a cross-sectional view of the present invention; Figure 3 An exploded view of the present invention; Figure 4 It is an exploded diagram of the detection mechanism in the present invention; Figure 5 It is an exploded view of the locking mechanism in the present invention.

[0019] The markings in the figure are: 1. Base; 101. Support column; 102. Operating table; 103. Base; 2. Support mechanism; 201. Support plate; 202. Motor mounting seat; 203. Rotating motor; 204. Limit rod; 205. Baffle; 3. Horizontal moving mechanism; 301. Moving threaded rod; 302. Moving box; 304. Sliding groove; 4. Visual inspection mechanism; 401. Inspection tooth plate; 402. Inspection gear shaft; 403. Inspection rotating rod; 404. Inspection connecting block; 405. CCD visual inspection head; 5. Locking mechanism; 501. Locking bevel block; 502. Locking connecting rod; 503. Locking spring; 504. Locking limit plate; 505. Locking mounting block. DETAILED DESCRIPTION

[0020] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0021] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] like Figures 1 to 5 As shown, this embodiment provides a welding fixture CCD visual inspection device, including a base 1, characterized in that a support mechanism 2 is provided on the top of the base 1, and the support mechanism 2 includes support plates 201 provided at both ends of the top of the base 1, a horizontal moving mechanism 3 is provided between the two support plates 201, and a visual inspection mechanism 4 is provided on the horizontal moving mechanism 3, and the visual inspection mechanism 4 slides horizontally with the horizontal moving mechanism 3; the bottom of the visual inspection mechanism 4 is a CCD visual inspection head 405, and the CCD visual inspection head 405 can be turned over, and the two support plates 201 are close to each other. The side is provided with a baffle 205 for turning over the CCD visual inspection head 405, and the two sides of the horizontal moving mechanism 3 are provided with a locking mechanism 5 for locking the position of the CCD visual inspection head 405. By setting the horizontal moving mechanism 3, the visual inspection mechanism 4 can be driven to move horizontally, and the CCD visual inspection head 405 of the visual inspection mechanism 4 can be turned over by the baffle 205, and the CCD visual inspection head 405 can be locked in position by the locking mechanism 5, so as to meet the requirements of being movable and flippable.

[0023] The horizontal moving mechanism 3 includes a moving threaded rod 301 movably connected to the two support plates 201, the outer wall of the moving threaded rod 301 is threadedly connected to a moving box 302, and the bottom of the front side of the moving box 302 is provided with a sliding groove 304 that runs through the left and right sides; the visual inspection mechanism 4 includes a detection tooth plate 401 that is slidably connected to the sliding groove 304, the sliding groove 304 and the detection tooth plate 401 are clearance-matched, the bottom of the detection tooth plate 401 is meshedly connected to a detection gear shaft 402, and the rear side of the detection gear shaft 402 is connected to a detection rotating rod 403. The box 302 is provided with an active cavity for rotating the detection gear shaft 402, the detection rotating rod 403 and the detection connecting block 404. The bottom of the active cavity is provided with a detection through hole. The detection connecting block 404 passes downward through the detection through hole to connect the CCD visual detection head 405. The bottom of the detection rotating rod 403 is connected with the detection connecting block 404, and the CCD visual detection head 405 is connected to the bottom of the detection connecting block 404. The baffle 205 is on the same horizontal line with the detection gear plate 401. The locking mechanism 5 is located at the rear side of the detection gear plate 401 to lock its position. The inner wall of the detection gear shaft 402 is movably connected with the outer wall of the detection rotating rod 403, the outer wall of the detection rotating rod 403 is movably connected with the inner wall of the detection connecting block 404, and the bottom of the detection connecting block 404 is movably connected with the top of the CCD visual detection head 405. This makes it easy to disassemble for replacement. By setting up a horizontal moving mechanism 3, the visual inspection mechanism 4 can be driven to move horizontally. The horizontal moving mechanism 3 starts the rotating motor 203, and the rotating motor 203 rotates to drive the moving threaded rod 301 to rotate through the coupling. The rotating threaded rod 301 drives the moving box 302 to move linearly through the thread action and the limiting action of the limiting rod 204. The linear movement of the moving box 302 drives the detection rotating rod 403 to move linearly. The linear movement of the detection rotating rod 403 drives the detection connecting block 404 to move linearly. The linear movement of the detection connecting block 404 drives the CCD visual inspection head 405 to move linearly. The linear movement of the CCD visual inspection head 405 can perform a comprehensive visual inspection of the fixture on the top of the base 103 without moving the fixture, thereby reducing the manual workload and bringing convenience to people's use. The linear motion of the moving box 302 drives the linear motion of the detection tooth plate 401. When the detection tooth plate 401 moves to the baffle 205, the force interaction with the baffle 205 pushes the detection tooth plate 401 to move linearly in the sliding groove 304. The linear motion of the detection tooth plate 401 drives the detection gear shaft 402 to rotate through the meshing action. The rotation of the detection gear shaft 402 drives the detection rotating rod 403 to rotate. The rotation of the detection rotating rod 403 drives the detection connecting block 404 to rotate. The rotation of the detection connecting block 404 drives the CCD visual detection head 405 to flip, which can change the detection angle of the CCD visual detection head 405, increase the detection angle, and make the detection more comprehensive.

[0024] The locking mechanism 5 includes a locking mounting block 505 arranged on the side of the movable box 302, the locking mounting block 505 is provided with a movable through hole running through the front and back, a locking link 502 is movably inserted in the movable through hole from front to back, the locking link 502 is clearance-matched with the movable through hole, a locking inclined block 501 is arranged at the front end of the locking link 502, the locking inclined block 501 abuts against the surface of the detection tooth plate 401, a locking limit plate 504 is arranged at the rear end of the locking link 502, the size of the locking limit plate 504 is larger than the size of the movable through hole, the locking limit plate 504 is located at the rear side of the locking mounting block 505 and abuts against the rear end surface of the locking mounting block 505; the locking inclined block 501 is fixedly connected to one end of a locking spring 503, the locking spring 503 is sleeved on the locking link 502, and the other end of the locking spring 503 abuts against the front end surface of the locking mounting block 505. The rear side of the detection tooth plate 401 is evenly distributed with locking grooves matching the locking bevel block 501. When the detection tooth plate 401 moves, the locking bevel block 501 moves in different locking grooves until it stops and matches with one of the locking grooves, and the locking spring 503 is always in a compressed state. The support mechanism 2 includes a motor mounting seat 202 arranged on the side of one of the support plates 201, a rotating motor 203 is arranged on the top of the motor mounting seat 202, and a moving threaded rod 301 movably penetrates the support plate 201 and is fixedly connected to the output shaft of the rotating motor 203 through a coupling; the other end of the moving threaded rod 301 is rotatably connected to another support plate 201. A limit rod 204 parallel to the moving threaded rod 301 is fixed between the two support plates 201, and the moving box 302 is slidably sleeved outside the limit rod 204. By moving the locking bevel block 501 back and forth in different locking grooves of the detection tooth plate 401, the locking link 502 performs repeated reciprocating linear motions under the action of the spring until it stops and cooperates with one of the locking grooves to lock the position, thereby preventing the CCD visual detection head 405 from shaking and affecting the detection effect.

[0025] The two support plates 201 are each provided with a limiting through hole on one side close to each other, and the two ends of the limiting rod 204 are fixedly connected to the inner walls of the two limiting through holes; the two support plates 201 are each provided with a rotating through hole on one side close to each other, and the two ends of the movable threaded rod 301 are rotatably connected to the inner walls of the two rotating through holes; the surface of the movable box 302 is provided with a threaded through hole and a connecting through hole, the threaded through hole is threadedly connected to the movable threaded rod 301, and the limiting rod 204 is slidably connected to the connecting through hole.

[0026] The base 1 includes an operating table 102, and four support columns 101 are arranged at the bottom of the operating table 102. The four support columns 101 are distributed in a rectangular array about the center of the bottom of the operating table 102. A base 103 is fixedly welded on the top of the operating table 102, and two support plates 201 are fixedly connected at both ends of the top of the operating table 102 and adjacent to the base 103. The fixture is installed on the base 103, and then the detection operation is performed.

[0027] It should be understood by those skilled in the art that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments may also be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A welding fixture CCD visual inspection device, comprising a base (1), characterized in that: A support mechanism (2) is arranged on the top of the base (1), the support mechanism (2) comprises support plates (201) arranged at two ends of the top of the base (1), a horizontal moving mechanism (3) is arranged between the two support plates (201), a visual detection mechanism (4) is arranged on the horizontal moving mechanism (3), and the visual detection mechanism (4) and the horizontal moving mechanism (3) slide horizontally together; a CCD visual detection head (405) is arranged at the bottom of the visual detection mechanism (4), and the CCD visual detection head (405) is flippable, a baffle (205) for flipping the CCD visual detection head (405) is arranged on the adjacent side of the two support plates (201), and locking mechanisms (5) for locking the position of the CCD visual detection head (405) are arranged on both sides of the horizontal moving mechanism (3).

2. According to claim 1, a welding fixture CCD visual inspection device is characterized in that: The horizontal moving mechanism (3) comprises a moving threaded rod (301) movably connected to the two support plates (201); the outer wall of the moving threaded rod (301) is threadedly connected to a moving box (302); the front bottom of the moving box (302) is provided with a sliding groove (304) extending left and right; the visual detection mechanism (4) comprises a detection tooth plate (401) slidably connected to the sliding groove (304); the sliding groove (304) and the detection tooth plate (401) are clearance-matched; the bottom of the detection tooth plate (401) is meshingly connected to a detection gear shaft (402); the rear side of the detection gear shaft (402) is connected to a detection rotating rod (403); An active cavity for rotating the detection gear shaft (402), the detection rotating rod (403) and the detection connecting block (404) is arranged in the movable box (302); a detection through hole is arranged at the bottom of the active cavity; the detection connecting block (404) passes downward through the detection through hole to be connected to a CCD visual detection head (405); the bottom of the detection rotating rod (403) is connected to the detection connecting block (404); the CCD visual detection head (405) is connected to the bottom of the detection connecting block (404); the baffle (205) and the detection gear plate (401) are on the same horizontal line; and the locking mechanism (5) is located at the rear side of the detection gear plate (401) to lock its position.

3. According to claim 2, a welding fixture CCD visual inspection device is characterized in that: The locking mechanism (5) comprises a locking mounting block (505) arranged on the side of the moving box (302), the locking mounting block (505) being provided with a movable through hole extending from front to back, a locking connecting rod (502) being inserted into the movable through hole movably from front to back, the locking connecting rod (502) being clearance-matched with the movable through hole, a locking inclined block (501) being arranged at the front end of the locking connecting rod (502), the locking inclined block (501) being in contact with the surface of the detection tooth plate (401), and a locking connecting rod (502) being arranged at the rear end A locking limit plate (504) is provided, the size of the locking limit plate (504) is larger than the size of the movable through hole, the locking limit plate (504) is located at the rear side of the locking mounting block (505) and abuts against the rear end surface of the locking mounting block (505); the locking inclined block (501) is fixedly connected to one end of a locking spring (503), the locking spring (503) is sleeved on the locking connecting rod (502), and the other end of the locking spring (503) abuts against the front end surface of the locking mounting block (505).

4. According to claim 2, a welding fixture CCD visual inspection device is characterized in that: The support mechanism (2) comprises a motor mounting seat (202) arranged on the side of one of the support plates (201); a rotating motor (203) is arranged on the top of the motor mounting seat (202); a movable threaded rod (301) movably penetrates the support plate (201) and is fixedly connected to the output shaft of the rotating motor (203) via a coupling; and the other end of the movable threaded rod (301) is rotatably connected to the other support plate (201).

5. A welding fixture CCD visual inspection device according to claim 4, characterized in that: A limiting rod (204) parallel to the movable threaded rod (301) is fixed between the two support plates (201), and the movable box (302) is slidably sleeved outside the limiting rod (204).

6. A welding fixture CCD visual inspection device according to claim 5, characterized in that: The two support plates (201) are provided with a limiting through hole on one side close to each other, and the two ends of the limiting rod (204) are fixedly connected to the inner walls of the two limiting through holes; the two support plates (201) are provided with a rotating through hole on one side close to each other, and the two ends of the movable threaded rod (301) are rotatably connected to the inner walls of the two rotating through holes; the movable box (302) is provided with a threaded through hole and a connecting through hole on the surface, the threaded through hole is threadedly connected to the movable threaded rod (301), and the limiting rod (204) is slidably connected to the connecting through hole.

7. A welding fixture CCD visual inspection device according to claim 2, characterized in that: The inner wall of the detection gear shaft (402) is movably engaged with the outer wall of the detection rotating rod (403), the outer wall of the detection rotating rod (403) is movably engaged with the inner wall of the detection connecting block (404), and the bottom of the detection connecting block (404) is movably engaged with the top of the CCD visual detection head (405).

8. A welding fixture CCD visual inspection device according to claim 3, characterized in that: The detection tooth plate (401) is evenly distributed with locking grooves matching the locking bevel block (501) on the rear side; when the detection tooth plate (401) moves, the locking bevel block (501) moves in different locking grooves until it stops matching with one of the locking grooves, and the locking spring (503) is always in a compressed state.

9. A welding fixture CCD visual inspection device according to claim 1, characterized in that: The base (1) comprises an operating table (102), four support columns (101) are arranged at the bottom of the operating table (102), the four support columns (101) are distributed in a rectangular array about the center of the bottom of the operating table (102), a base (103) is fixedly welded to the top of the operating table (102), and two support plates (201) are fixedly connected to the two ends of the top of the operating table (102) and are adjacent to the base (103).

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