An instrument for detecting leakage of automobile radiator core by illumination

Abstract

The present invention belongs to the technical field of light leakage detection, and specifically relates to a light leakage detection instrument for automobile radiator core, comprising a workbench, a bracket connected to the top of the workbench, a detector installed on the bracket, a fixed column connected to the top of the bracket, a translation column driven by an electric slide rail slidably connected to the top of the bracket, a rotating frame rotatably connected to the side of the upper part of the fixed column and the translation column close to each other, a driving mechanism for driving the rotating frame to rotate is provided on the fixed column, and a pair of electric clamps are rotatably connected to the side of the two rotating frames close to each other. The electric clamp is controlled to rotate to clamp the end of the detection piece, and the electric clamp squeezes the trapezoidal block through the inclined surface to make the sealing block extend into the detection piece, and the motor drives the left gear 1 to rotate, and the two rotating frames are synchronously rotated through the cooperation of gear 2 and the rotating rod to rotate the detection piece, and the light source generator emits light, and the light leakage point is fully detected through the detector, the detection effect is good, and the detection process is automated, and the detection efficiency is high.

Description

Technical Field

[0001] The invention belongs to the technical field of light leakage detection, and in particular relates to a light leakage detection instrument for a core of an automobile radiator. Background Art

[0002] The car radiator consists of three parts: the water inlet chamber, the water outlet chamber and the radiator core. The coolant flows in the radiator core and the air passes outside the radiator. In order to avoid the problem of coolant leakage in the radiator, the car radiator core needs to be leak tested.

[0003] A Chinese patent with a patent publication number of CN108489691A discloses a photoelectric leak detection instrument for a core of an automobile radiator, comprising a housing, a transmission mechanism, a driving mechanism, a light source generator and a charge coupler.

[0004] The above patent uses a light source generator to emit light, and a charge coupled device to detect light leakage points, thereby performing light leakage detection on the radiator core. The light leakage detection method will not cause damage to the radiator core, but the radiator core includes multiple flat tubes. This patent makes it difficult to leak a single flat tube. There may be tiny light leakage points that are difficult to detect in the gaps between the multiple flat tubes, which affects the detection effect.

[0005] Therefore, there is an urgent need to develop an automobile radiator core light leakage detection instrument that can illuminate the side leakage of a single flat tube to accurately detect tiny leakage points, thereby achieving good detection effect and high detection efficiency. Summary of the invention

[0006] In order to solve the problems raised in the above background technology, the present invention provides an automobile radiator core light leakage detection instrument.

[0007] The technical solution is as follows: A car radiator core light leakage detection instrument comprises a workbench, a bracket connected to the top of the workbench, a detector installed on the bracket, a fixed column connected to the top of the bracket, a translation column driven by an electric slide rail slidably connected to the top of the bracket, a rotating frame is rotatably connected to the side of the fixed column and the translation column that are close to each other, a driving mechanism for driving the rotating frame to rotate is provided on the fixed column, a pair of electric clamps are rotatably connected to the side of the two rotating frames that are close to each other, a pair of sliding rods reset by a reset spring are slidably connected to the rotating frames, a sealing block is connected between each pair of sliding rods, a light source generator is installed on the side of the two sealing blocks that are close to each other, and a trapezoidal block is connected to the middle of each pair of sliding rods.

[0008] Optionally, the electric clamp includes a rotating shaft, the electric clamp rotates around the rotating shaft, and a slope is provided on the side of the electric clamp close to the trapezoidal block. When a pair of electric clamps rotate toward each other, the electric clamp squeezes the trapezoidal block through the slope to move the sealing block so that the sealing block extends into the end of the detection piece.

[0009] Optionally, the driving mechanism includes gear 1, gear 1 is coaxially connected to the rotating frame, a motor is connected to the fixed column, the output shaft of the motor is connected to gear 1 on the left, gear 2 is rotatably connected to the fixed column and the middle part of the translation column, the two gears 2 are respectively meshed with the two gears 1, a rotating rod is coaxially connected to gear 2 on the left, the rotating rod passes through the translation column, and the rotating rod is spline-connected to gear 2 on the right.

[0010] Optionally, the automobile radiator core light leakage detection instrument also includes a placement mechanism, which includes a guide rod 1. A pair of guide rods 1 that slide up and down are provided on the top of the workbench. Tension springs are connected between the guide rods 1 and the workbench. The top ends of the two guide rods 1 are commonly connected to a placement plate for placing the detection parts.

[0011] Optionally, the automobile radiator core light leakage detection instrument also includes a feeding mechanism, which includes a connecting seat, the top of the workbench is connected to the connecting seat, the top of the connecting seat is connected to a hollow placement frame, the connecting seat is connected to an electric push rod, the telescopic rod of the electric push rod is connected to a translation rod, two ejection rods are connected to the front side of the translation rod, a limit plate sliding left and right is provided on the right part of the placement frame, a cavity for storing the detection part is formed between the limit plate and the placement frame, a connecting rod is connected to the lower part of the limit plate, and the connecting rod is fixedly connected to the translation column.

[0012] Optionally, the bottom of the placement frame is open, and a discharge port for a detection member to pass through is formed between the bottom of the placement frame and the top of the connecting seat.

[0013] Optionally, the automobile radiator core light leakage detection instrument also includes a positioning mechanism, which includes a guide rod 2. A pair of guide rods 2 that slide up and down are provided on the upper part of the bracket, and a baffle for positioning the detection part on the placement plate is commonly connected between the bottom ends of the two guide rods 2.

[0014] The beneficial effects of the present invention are: 1. The electric clamp is controlled to rotate to clamp the end of the detection piece. The electric clamp squeezes the trapezoidal block through the inclined surface to make the sealing block extend into the detection piece. The motor drives the gear 1 on the left to rotate. The two rotating frames are rotated synchronously through the cooperation of the gear 2 and the rotating rod to rotate the detection piece. The light source generator emits light, and the light leakage point is comprehensively detected through the detector. The detection effect is good, the detection process is automated, and the detection efficiency is high.

[0015] 2. The detection part in the cavity is limited by the limit plate, and the electric push rod is controlled to move the translation rod and the ejection rod backward. The detection part at the bottom of the cavity falls to the discharge port. The electric push rod then moves the translation rod and the ejection rod forward. The ejection rod pushes the detection part at the discharge port to the placement plate, and positions the detection part through the baffle, so that the detection part is automatically pushed to the placement plate. The loading process is automated and the detection efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 For the present invention Figure 1 Schematic diagram of some structures in .

[0018] Figure 3 For the present invention Figure 2 Front view of the .

[0019] Figure 4 It is a schematic structural diagram of a fixed column, a translation column, a rotating frame, a gear 1, a gear 2, a motor and a rotating rod of the present invention.

[0020] Figure 5 It is a schematic structural diagram of the translation column, rotating frame, gear one, gear two, electric clamp, sliding rod, sealing block, light source generator and trapezoidal block of the present invention, wherein the rotating frame is cut away.

[0021] Figure 6 It is a top view of the electric clamp, the slide rod, the sealing block and the trapezoidal block of the present invention.

[0022] Figure 7 For the present invention Figure 4 Enlarged view of point A in .

[0023] Figure 8 It is a schematic structural diagram of a guide rod 1, a placement plate, a connecting seat, a placement frame, a translation rod, a push rod, a limit plate and a connecting rod of the present invention.

[0024] Fig. 9 It is a schematic structural diagram of the connecting seat, the placement frame, the electric push rod, the translation rod, the ejection rod, the limit plate and the connecting rod of the present invention, wherein the placement frame is cut away.

[0025] Fig.10 For the present invention Fig. 9 Schematic diagram of the structure after the placement box is hidden.

[0026] Fig.11 It is a schematic diagram of the connection relationship between the guide rod 2 and the baffle of the present invention.

[0027] Markings in the accompanying drawings: 1-workbench, 2-bracket, 3-detector, 30-detection piece, 4-fixed column, 5-translation column, 6-rotation frame, 61-gear one, 62-gear two, 63-motor, 64-rotating rod, 7-electric clamp, 71-rotating shaft, 72-inclined surface, 8-sliding rod, 9-sealing block, 91-light source generator, 10-trapezoidal block, 111-guide rod one, 112-placing plate, 121-connecting seat, 122-placing frame, 123-electric push rod, 124-translation rod, 125-pushing rod, 126-limiting plate, 127-connecting rod, 131-guide rod two, 132-baffle. DETAILED DESCRIPTION

[0028] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0029] Embodiment 1: A car radiator core light leak detection instrument, reference Figure 1-Figure 7 , including a workbench 1, a bracket 2, a detector 3, a fixed column 4, a translation column 5, a rotating frame 6, a driving mechanism, an electric clamp 7, a slide bar 8, a sealing block 9, a light source generator 91 and a trapezoidal block 10. The bracket 2 is welded to the front side of the top of the workbench 1, and the detector 3 is installed on the upper part of the bracket 2. The fixed column 4 is fixedly connected to the left side of the top of the bracket 2, and the translation column 5 driven by the electric slide rail is slidably connected to the right side of the top of the bracket 2. The upper sides of the fixed column 4 and the translation column 5 that are close to each other are both rotatably connected to the rotating frame 6. The fixed column 4 is provided with a driving mechanism for driving the rotating frame 6 to rotate. The two rotating frames 6 that are close to each other are both rotatably connected to a pair of electric clamps 7. The rotating frame 6 is slidably connected to a pair of slide bars 8, and the slide bars 8 are connected to the rotating frame 6. A return spring is fixedly connected between them, a sealing block 9 is fixedly connected between each pair of sliding rods 8, and a light source generator 91 is installed on the side where the two sealing blocks 9 are close to each other. In the present embodiment, the detector 3 is specifically a charge coupled device, which can capture the light emitted by the light source generator 91; a trapezoidal block 10 is fixedly connected to the middle part of each pair of sliding rods 8, and the electric clamp 7 includes a rotating shaft 71. The driving method of the electric clamp 7 is the existing technology. Specifically, the electric clamp 7 rotates around the rotating shaft 71. A slope 72 is provided on the side of the electric clamp 7 close to the trapezoidal block 10. When a pair of electric clamps 7 rotate in a direction approaching each other, the electric clamp 7 squeezes the trapezoidal block 10 through the slope 72 to move the sealing block 9 so that the sealing block 9 extends into the end of the detection member 30.

[0030] refer to Figure 2-Figure 7 The driving mechanism includes a gear 1 61, a gear 2 62, a motor 63 and a rotating rod 64. The rotating frame 6 is coaxially connected with the gear 1 61. The upper left part of the fixed column 4 is bolted with the motor 63. The output shaft of the motor 63 is fixedly connected with the gear 1 61 on the left. The fixed column 4 and the middle part of the translation column 5 are rotatably connected with the gear 2 62. The two gears 2 62 are respectively meshed with the two gears 1 61. The left gear 2 62 is coaxially connected with the rotating rod 64. The right end of the rotating rod 64 passes through the translation column 5. Figure 7 As shown, the right end of the rotating rod 64 is spline-connected to the right gear 2 62 .

[0031] refer to Figure 1-Figure 3 The automobile radiator core light leakage detection instrument also includes a placement mechanism, which includes a guide rod 111 and a placement plate 112. A pair of guide rods 111 that slide up and down are provided on the front side of the top of the workbench 1. Tension springs are fixedly connected between the guide rods 111 and the workbench 1. The tops of the two guide rods 111 are commonly fixedly connected with a placement plate 112 for placing the detection member 30.

[0032] First, in a dark environment, place the detection piece 30 on the placement plate 112 so that the detection piece 30 is located between the two sealing blocks 9, and control the electric clamp 7 to rotate with the rotating shaft 71 as the axis in the direction close to the sealing block 9. The two pairs of electric clamps 7 clamp the ends of the detection piece 30. At the same time, the rotating electric clamp 7 squeezes the trapezoidal block 10 through the inclined surface 72, so that the two trapezoidal blocks 10 are close to each other in the left and right directions. The sealing block 9 and the sliding rod 8 move together with the trapezoidal block 10, the reset spring is compressed, and the two sealing blocks 9 are respectively extended into the interior of the two ends of the detection piece 30. At this time, the light source generator 91 is located inside the detection piece 30.

[0033] Control the light source generator 91 to emit light, and detect the light leakage points on the top surface of the detection member 30 through the detector 3; then control the motor 63 to drive the gear 1 61 on the left to rotate clockwise, driving the rotating frame 6 on the left to rotate clockwise, and the gear 1 61 on the left makes the gear 2 62 on the left rotate counterclockwise through meshing. Since the right end of the rotating rod 64 is spline-connected with the gear 2 62 on the right, the gear 2 62 on the left will drive the rotating rod 64 and the gear 2 62 on the right to rotate counterclockwise, and the gear 2 62 on the right makes the gear 1 61 on the right and the rotating frame 6 on the right rotate clockwise through meshing, so that the two rotating frames 6 rotate synchronously, and the rotating rotating frame 6 drives the electric clamp 7 and the clamped detection member 30 to rotate together, so that the other side of the detection member 30 faces the detector 3, and the other side of the detection member 30 can be detected by the detector 3. When the detection member 30 is rotated and reset, the placement plate 112 and the guide rod 111 are reset to the initial position by the tension spring. In this way, the motor 63 is controlled to make the detection member 30 continue to rotate, so as to complete the light leakage detection of the four sides of the detection member 30. If no light leakage is detected on the four sides of the detection member 30, the detection member 30 is qualified. If a light leakage is detected on one side of the detection member 30, the detection member 30 is unqualified. Therefore, a single detection member 30 is automatically and comprehensively tested for leakage by means of light illumination, and tiny light leakage points can be accurately detected. The detection effect is good, the detection process is automated, and the detection efficiency is high.

[0034] Finally, the electric clamp 7 is controlled to rotate in the opposite direction with the rotating shaft 71 as the axis, the inclined surface 72 of the electric clamp 7 no longer squeezes the trapezoidal block 10, the reset spring is restored, the trapezoidal block 10, the sealing block 9 and the sliding rod 8 are reset, the sealing block 9 is separated from the detection part 30, and the detection part 30 that has been detected can be removed.

[0035] When it is necessary to detect detection parts 30 of different lengths, the electric slide rail is controlled to drive the translation column 5 to translate in the left and right directions, driving the gear 1 61 on the right side, the gear 2 62 on the right side, the rotating frame 6 on the right side, the electric clamp 7 on the right side, the slide rod 8 on the right side and the sealing block 9 on the right side to translate together, so that the distance between the two sealing blocks 9 can be adapted to the length of the detection part 30. Since the right end of the rotating rod 64 is spline-connected with the gear 2 62 on the right side, the gear 2 62 on the right side can slide left and right relative to the rotating rod 64, and the rotating rod 64 can continue to drive the gear 2 62 on the right side to rotate.

[0036] Example 2: Based on Example 1, refer to Figure 1 , Figure 8 , Fig. 9 and Fig.10 The automobile radiator core light leak detection instrument also includes a feeding mechanism, which includes a connecting seat 121, a placement frame 122, an electric push rod 123, a translation rod 124, a push rod 125, a limit plate 126 and a connecting rod 127. The top of the workbench 1 is fixedly connected to the connecting seat 121, and the top of the connecting seat 121 is fixedly connected to a hollow placement frame 122. The bottom of the placement frame 122 is open, and a discharge port for a detection member 30 to pass through is formed between the bottom of the placement frame 122 and the top of the connecting seat 121; the connecting seat 1 An electric push rod 123 is bolted on 21, and a translation rod 124 is fixedly connected to the telescopic rod of the electric push rod 123. A push rod 125 for pushing out the detection member 30 located at the discharge port is symmetrically fixedly connected to the front side of the translation rod 124. A limit plate 126 that slides left and right is provided on the right part of the placement frame 122. A cavity for storing the detection member 30 is formed between the left side of the limit plate 126 and the placement frame 122. A connecting rod 127 is fixedly connected to the lower part of the limit plate 126, and the connecting rod 127 is fixedly connected to the rear side of the translation column 5.

[0037] refer to Figure 1 and Fig.11 The automobile radiator core light leakage detection instrument also includes a positioning mechanism, which includes a guide rod 131 and a baffle 132. A pair of guide rods 131 that slide up and down are provided on the upper part of the bracket 2, and a baffle 132 for positioning the detection member 30 on the placement plate 112 is fixedly connected between the bottom ends of the two guide rods 131.

[0038] Initially, a detection piece 30 is placed on the top of the placement plate 112, and a row of detection pieces 30 to be detected are placed in the cavity. Two ejection rods 125 pass through the discharge port, and the ejection rods 125 block the detection piece 30 at the bottom of the cavity. The detection piece 30 in the cavity is limited by the limit plate 126, so that the detection pieces 30 in the cavity are arranged neatly in the left and right directions; when the detection of the detection piece 30 on the placement plate 112 is completed, the electric clamp 7 is controlled to release the detection piece 30, and the detection piece 30 is removed, and then the electric push rod 123 is controlled to drive the translation rod 124 to translate backward, driving the ejection rod 125 to translate backward, and the ejection rod 125 will leave the discharge port, and the ejection rod 125 will no longer block the detection piece 30 in the cavity, and the detection piece 30 at the bottom of the cavity will be removed. 0 falls down to the discharge port, and then controls the electric push rod 123 to drive the translation rod 124 to translate forward and reset, driving the ejection rod 125 to translate forward and reset, and the ejection rod 125 pushes the detection piece 30 at the discharge port to the placement plate 112, and the front side of the detection piece 30 will contact the rear side of the baffle 132, and the baffle 132 will be used to position the detection piece 30, so as to automatically push the detection piece 30 to the placement plate 112 for detection, and the loading process is automated, and the detection efficiency is higher; when the translation column 5 translates in the left and right directions to detect detection pieces 30 of different lengths, the translation column 5 will drive the connecting rod 127 and the limit plate 126 to translate synchronously to adjust the length of the cavity, and the position of the limit plate 126 can adapt to detection pieces 30 of different lengths.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An instrument for detecting leakage of a core of an automobile radiator by illumination, comprising a workbench (1), a bracket (2) connected to the top of the workbench (1), a detector (3) mounted on the bracket (2), characterized in that: The top of the bracket (2) is connected to a fixed column (4), the top of the bracket (2) is slidably connected to a translation column (5) driven by an electric slide rail, the sides of the upper parts of the fixed column (4) and the translation column (5) close to each other are rotatably connected to a rotation frame (6), the fixed column (4) is provided with a driving mechanism for driving the rotation frame (6) to rotate, the sides of the two rotation frames (6) close to each other are rotatably connected to a pair of electric clamps (7), the rotation frames (6) are slidably connected to a pair of slide bars (8) reset by a reset spring, each pair of the slide bars (8) is connected to a sealing block (9), the sides of the two sealing blocks (9) close to each other are installed with a light source generator (91), and the middle of each pair of the slide bars (8) is connected to a trapezoidal block (10); The electric clamp (7) comprises a rotating shaft (71), and the electric clamp (7) rotates around the rotating shaft (71). A slope (72) is provided on a side of the electric clamp (7) close to the trapezoidal block (10). When the pair of electric clamps (7) rotate in a direction approaching each other, the electric clamp (7) squeezes the trapezoidal block (10) through the slope (72) to move, so that the sealing block (9) extends into the end of the detection member (30).

2. The automobile radiator core light leak detection instrument according to claim 1, characterized in that: The driving mechanism comprises a gear 1 (61), the rotating frame (6) is coaxially connected to the gear 1 (61), the fixed column (4) is connected to a motor (63), the output shaft of the motor (63) is connected to the gear 1 (61) on the left side, the fixed column (4) and the middle part of the translation column (5) are rotatably connected to a gear 2 (62), the two gears 2 (62) are respectively meshed with the two gears 1 (61), the gear 2 (62) on the left side is coaxially connected to a rotating rod (64), the rotating rod (64) passes through the translation column (5), and the rotating rod (64) is spline-connected to the gear 2 (62) on the right side.

3. The automobile radiator core light leak detection instrument according to claim 2, characterized in that: The automobile radiator core light leak detection instrument also includes a placement mechanism, the placement mechanism includes a guide rod (111), a pair of guide rods (111) that slide up and down are provided on the top of the workbench (1), a tension spring is connected between the guide rods (111) and the workbench (1), and the top ends of the two guide rods (111) are commonly connected to a placement plate (112) for placing the detection member (30).

4. The automobile radiator core light leak detection instrument according to claim 3, characterized in that: The automobile radiator core light leak detection instrument further comprises a feeding mechanism, the feeding mechanism comprising a connecting seat (121), the top of the workbench (1) being connected to the connecting seat (121), the top of the connecting seat (121) being connected to a hollow placement frame (122), the connecting seat (121) being connected to an electric push rod (123), the telescopic rod of the electric push rod (123) being connected to a translation rod (124), the front side of the translation rod (124) being connected to two ejection rods (125), the right part of the placement frame (122) being provided with a limit plate (126) which slides left and right, a cavity for storing a detection member (30) being formed between the limit plate (126) and the placement frame (122), the lower part of the limit plate (126) being connected to a connecting rod (127), the connecting rod (127) being fixedly connected to the translation column (5).

5. The automobile radiator core light leak detection instrument according to claim 4, characterized in that: The bottom of the placement frame (122) is open, and a discharge port for a detection member (30) to pass through is formed between the bottom of the placement frame (122) and the top of the connection seat (121).

6. The automobile radiator core light leak detection instrument according to claim 5, characterized in that: The automobile radiator core light leak detection instrument also includes a positioning mechanism, the positioning mechanism includes a second guide rod (131), the upper part of the bracket (2) is provided with a pair of second guide rods (131) that slide up and down, and the bottom ends of the two second guide rods (131) are commonly connected to a baffle (132) for positioning the detection member (30) on the placement plate (112).

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