Visual inspection tool for hydraulic pump shell and use method of visual inspection tool

Abstract

The invention discloses a visual inspection tool for a hydraulic pump shell and a use method of the visual inspection tool, and relates to the technical field of hydraulic pump shell detection. A lifting guide rail, an industrial personal computer and a display mechanism are arranged on the detection table, and an image acquisition camera is arranged at the output end of the lifting guide rail; a mounting rod is arranged on the detection table, a fixing frame is arranged at the top of the mounting rod, electric push rods are arranged on the inner walls of the periphery of the fixing frame, the hydraulic pump shells can be clamped in sequence in pairs through the electric push rods, the mounting plate and the rotating mechanism on the periphery, and then the hydraulic pump shells can be driven to rotate at all angles; therefore, all surfaces of the hydraulic pump shell and uneven parts of all the surfaces can be photographed and detected. The rotating mechanism is provided with a second gear motor and an electric telescopic rod, so that the position of a clamping block is further adjustable, a rubber pad can make contact with the flat position of the hydraulic pump shell as much as possible, and therefore the clamping area is increased, and the clamping stability is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic pump housing detection, and in particular to a visual detection tool for a hydraulic pump housing and a use method thereof. Background Art

[0002] The hydraulic pump is the power element of the hydraulic system. It is driven by an engine or electric motor, sucking oil from the hydraulic tank, forming pressurized oil and discharging it to the actuator. Hydraulic pumps are divided into gear pumps, plunger pumps, vane pumps and screw pumps according to their structure. After production and processing, the hydraulic pump casing needs to be inspected for appearance defects, so visual inspection equipment is required.

[0003] A search of the visual inspection equipment in the prior art revealed that the authorization publication number CN215833265U discloses a visual inspection device, which clamps the workpiece through a driving mechanism and moves it relative to the image acquisition mechanism, so that the image acquisition mechanism can visually detect the workpiece in a moving state. This ensures that the image acquisition mechanism is in a stationary state during the image acquisition process of the workpiece, thereby avoiding the shaking of the image acquisition mechanism. Therefore, in order to improve the inspection efficiency when performing visual inspection on the hydraulic pump housing, it is also necessary to clamp the hydraulic pump housing and then drive it to move relative to the image acquisition mechanism.

[0004] A search of the prior art for clamping the hydraulic pump housing revealed that the authorization publication number CN220481669U discloses a quick fixing device for processing the hydraulic pump housing. Although the device can adjust the angle and height of the hydraulic pump housing and clamp it, it is impossible to use the fixing device to adjust the hydraulic pump housing in all directions. Furthermore, it is necessary to manually remove the hydraulic pump housing and turn it over for multi-sided photography and inspection, making it impossible to quickly inspect all sides of the hydraulic pump housing. In addition, the outer side of the hydraulic pump housing is often not flat enough, and the hydraulic pump housing fixing device of the prior art cannot clamp it stably. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a visual inspection tool for a hydraulic pump housing and a method of using the same, which solves the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A visual inspection tool for a hydraulic pump housing, comprising a testing platform;

[0007] The detection platform is provided with a lifting guide rail, an industrial computer and a display mechanism, and an image acquisition camera is provided on the output end of the lifting guide rail;

[0008] The testing platform is provided with a mounting rod, and a fixing frame is provided on the top of the mounting rod. Electric push rods are provided on the inner walls of the fixing frame. The output ends of the electric push rods are provided with mounting plates, and the mounting plates are provided with rotating mechanisms. The rotating mechanisms on the opposite sides are used to clamp and rotate the hydraulic pump housing.

[0009] The electric push rod is provided with a detection mechanism for detecting whether the electric push rod is extended to the right position;

[0010] The testing platform is provided with a positioning mechanism for positioning the hydraulic pump housing.

[0011] Preferably, the rotating mechanism includes a reduction motor 1 arranged on a mounting plate, a connecting block is provided on the output shaft of the reduction motor 1, reduction motor 2 is provided at both ends of the connecting block, a mounting block is provided on the output shaft of the reduction motor 2, an electric telescopic rod is provided on the mounting block, and a clamping block is provided on the output end of the electric telescopic rod, and a rubber pad is provided on the clamping block.

[0012] Preferably, the detection mechanism includes a fixed block arranged on the electric push rod, a pressure sensor is arranged on the fixed block, the pressure sensor is electrically connected to the electric push rod, and a spring 1 is connected to the detection end of the pressure sensor, a connecting frame is arranged on the spring 1, and the connecting frame is connected to the mounting plate, the connecting frame is slidably sleeved on the guide rod, and the guide rod is arranged on an angle seat connected to the fixed frame, warning lights are arranged around the top of the fixed frame, and the pressure sensor and the reduction motor 1 are both connected to the cooling component.

[0013] Preferably, the cooling component includes heat sinks evenly arranged on the outside of the pressure sensor, the heat sinks are all connected to a heat dissipation ring, the heat dissipation ring is connected to an inverted U-shaped heat dissipation frame, and the top of the heat dissipation frame extends into the water tank, the top of the water tank is provided with a water inlet hopper, the top of the heat dissipation frame is evenly provided with through holes, and the water tank is provided with an inflation device, a water stirring device and a heat dissipation device connected to a reduction motor.

[0014] Preferably, the inflation device includes a fixed tube connected to the water tank, the fixed tube is connected to an air bag located in the water tank, a piston rod is slidably connected in the fixed tube, and the piston rod is connected to a connecting rod, and the connecting rod is connected to a connecting frame.

[0015] Preferably, the water stirring device includes an agitator connected to the water tank through a bearing, the agitator is located on the side of the airbag, gears are provided on the front and rear sides of the agitator, and the gears are meshed with a gear rod, and the gear rod is connected to the mounting plate.

[0016] Preferably, the heat dissipation device includes two heat sinks evenly arranged on the outside of the reduction motor, the two heat sinks are connected to two heat dissipation rings, the two heat dissipation rings are connected to two inverted L-shaped heat dissipation racks, and the two heat dissipation racks pass through the water tank in the horizontal direction.

[0017] Preferably, the positioning mechanism includes a hydraulic telescopic rod arranged on the top of the inspection platform, the piston rod of the hydraulic telescopic rod is connected to the support plate, the front and rear sides of the support plate are provided with through slots, a slide is slidably connected to the through slot, and a spring connected to the slide is provided on the through slot, a screw is provided on the slide, and the screw is connected to the positioning rod slidably connected to the support plate through a bearing, a guide wheel is provided at the bottom of the slide, and slide rails are provided on the front and rear sides of the top of the inspection platform, a guide rod is slidably connected to the slide rail, and an inclined portion contacting the guide wheel is provided on the guide rod, and the front and rear sides of the top of the inspection platform are connected to the lifting screw rods through bearings, and the guide rods on both sides are respectively screwed on the lifting screw rods on both sides.

[0018] A method for using a visual inspection tool for a hydraulic pump housing, the method comprising the following steps:

[0019] Step 1: Position the hydraulic pump housing using the positioning mechanism according to its height and size;

[0020] Step 2: The left and right electric push rods are extended at the same time to drive the mounting plate to move, so that the left and right rotating mechanisms both clamp the flat part of the hydraulic pump housing, and then take pictures through the image acquisition camera above, and display the test results through the display mechanism. When the top of the hydraulic pump housing is uneven, the left and right rotating mechanisms are used to drive the hydraulic pump housing to rotate slightly in the front and back directions, and then the front and rear electric push rods are extended at the same time to drive the front and rear rotating mechanisms to drive the hydraulic pump housing to rotate slightly in the left and right directions. Repeat step 2 to complete the photo inspection of each surface of the hydraulic pump housing and the uneven parts of each surface;

[0021] Step 3: When the electric push rod extends and drives the rotating mechanism on the mounting plate to clamp the hydraulic pump housing, the detection mechanism performs a detection. When it is found that the electric push rod cannot continue to extend, the extension command of the electric push rod is automatically stopped immediately;

[0022] Step 4: After the inspection is completed, when placing the next hydraulic pump housing, continue to quickly position the hydraulic pump housing through the positioning mechanism, so that the rotating mechanism can quickly clamp the hydraulic pump housing.

[0023] Preferably, in the step 2, when the image acquisition camera takes pictures of different surfaces of the hydraulic pump housing, the height is changed by lifting and lowering the camera via a lifting guide rail.

[0024] The present invention provides a visual inspection tool for hydraulic pump housings and a method for using the same. Compared with the prior art, it has the following advantages:

[0025] 1. The visual inspection tooling for hydraulic pump housing and its use method can clamp the hydraulic pump housing in pairs through the electric push rods, mounting plates and rotating mechanisms on all sides, and then drive the hydraulic pump housing to rotate at various angles, so as to facilitate the photographic inspection of each surface of the hydraulic pump housing and the uneven parts of each surface; wherein the rotating mechanism uses the second reduction motor and the electric telescopic rod to further adjust the position of the clamping block, so that the rubber pad can contact the flat part of the hydraulic pump housing as much as possible, thereby increasing the clamping area and improving the clamping stability.

[0026] 2. The visual inspection tooling for the hydraulic pump housing and the method of using the same need to frequently drive the electric push rod to extend and retract because the hydraulic pump housing needs to be rotated at various angles. When the electric push rod is extended, the connecting frame squeezes the pressure sensor through the spring, so that the pressure sensor recognizes that the pressure value is gradually increasing. When the rubber pad has stably clamped the hydraulic pump housing, the electric push rod cannot continue to extend. At this time, the pressure value no longer increases, and a command to stop extending can be sent to the electric push rod to avoid damage to the electric push rod.

[0027] 3. The visual inspection tooling for the hydraulic pump housing and the method of using the same, since the pressure sensor and the reduction motor 1 are both in a state of frequent use, are prone to overheating. Overheating of the pressure sensor will affect its sensitivity and accuracy, and overheating of the reduction motor 1 will affect the accuracy of its driving the rotation of the hydraulic pump housing. Therefore, when the electric push rod is extended and retracted, the pressure sensor and the reduction motor 1 can also be cooled by the cooling water in the water tank. Specifically, the heat sink 2 moves in the water tank for mobile cooling, and the water stirring device automatically stirs the cooling water to ensure the flow of the water body. At the same time, the air bag in the inflation device expands back and forth, causing the water level of the cooling water to rise and fall, which can flow and cool the heat sink 1, and at the same time, after rising, it enters the water inlet hopper with a larger cross-section, thereby improving the cooling efficiency of the heat sink 1 and the cooling water itself.

[0028] 4. The visual inspection tooling for the hydraulic pump housing and the method of using the same, wherein the second spring squeezes and fixes the slide plate to one side of the through slot by its own elastic force, and then the screw is rotated to make the positioning rod contact the front and rear sides of the hydraulic pump housing to complete the positioning, and then when the hydraulic telescopic rod drives the support plate to move downward, the guide wheel rolls on the inclined portion of the guide rod, thereby pushing the slide plate to squeeze the second spring, without the need to manually move the positioning rod away from the hydraulic pump housing; by lifting the screw rod and the slide rail, the height of the guide rod can be adjusted as needed, and when the support plate drives the slide plate to rise to the required height, the slide plate can be squeezed and fixed to one side of the through slot by the second spring, thereby ensuring the stability of the positioning rod position. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 Schematic diagram of the fixed frame, electric push rod, rotating mechanism and detection mechanism of the present invention;

[0031] Figure 3 is a schematic diagram of the rotating mechanism of the present invention;

[0032] Figure 4 This is a schematic diagram of the rotating mechanism of the present invention in use;

[0033] Figure 5 Schematic diagram of the detection mechanism of the present invention;

[0034] Figure 6 A schematic diagram of a cooling component and a heat dissipation device according to the present invention;

[0035] Figure 7 Schematic diagram of the pressure sensor, heat sink 1, heat sink ring 1, heat sink frame 1 and through hole of the present invention;

[0036] Figure 8 Schematic diagram of the detection platform and positioning mechanism of the present invention;

[0037] Figure 9 Schematic diagram of the support plate and positioning rod of the present invention;

[0038] Figure 10 Schematic diagram of the positioning rod, guide wheel and guide rod of the present invention.

[0039] In the figure: 1. Testing table; 2. Lifting guide rail; 3. Industrial computer; 4. Display mechanism; 5. Image acquisition camera; 6. Mounting rod; 7. Fixing frame; 8. Electric push rod; 9. Mounting plate; 10. Rotating mechanism; 101. Reducer motor 1; 102. Connecting block; 103. Reducer motor 2; 104. Mounting block; 105. Electric telescopic rod; 106. Clamping block; 107. Rubber pad; 11. Testing mechanism; 111. Fixing block; 112. Pressure sensor; 113. Spring 1; 114. Connecting frame; 115. Guide rod; 116. Angle seat; 117. Warning light; 118. Cooling assembly; 1181. Heat sink 1; 1182. Heat sink ring 1; 1183. Heat sink 1; 1184. Sink; 1185 , water inlet bucket; 1186, through hole; 1187, inflation device; 11871, fixing tube; 11872, air bag; 11873, piston rod; 11874, connecting rod; 1188, water stirring device; 11881, gear rod; 11882, gear; 11883, stirrer; 1189, heat dissipation device; 11891, heat sink 2; 11892, heat dissipation ring 2; 11893, heat dissipation rack 2; 12, positioning mechanism; 121, hydraulic telescopic rod; 122, support plate; 123, through groove; 124, slide plate; 125, spring 2; 126, screw; 127, positioning rod; 128, guide wheel; 129, guide rod; 1210, inclined portion; 1211, slide rail; 1212, lifting screw. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] See Figures 1-10 , the present invention provides the following two technical solutions:

[0042] First embodiment: A visual inspection tool for a hydraulic pump housing, comprising an inspection table 1;

[0043] The test platform 1 is provided with a lifting guide rail 2, an industrial computer 3 and a display mechanism 4. An image acquisition camera 5 is provided at the output end of the lifting guide rail 2. The image acquisition camera 5 takes a picture of the hydraulic pump housing for inspection. After the inspection is completed, the inspection result is output and displayed through the display mechanism 4. The display mechanism 4 is also provided with a pull-out keyboard and mouse for easy operation.

[0044] A mounting rod 6 is provided on the inspection table 1, and a fixed frame 7 is provided on the top of the mounting rod 6. Electric push rods 8 are provided on the inner walls of the fixed frame 7. The output ends of the electric push rods 8 are provided with mounting plates 9, and a rotating mechanism 10 is provided on the mounting plate 9. The rotating mechanisms 10 on the opposite sides are used to clamp and rotate the hydraulic pump housing. Through the electric push rods 8, the mounting plates 9 and the rotating mechanisms 10 on the surrounding sides, the hydraulic pump housing can be clamped in pairs, and then the hydraulic pump housing can be driven to rotate at various angles, so as to facilitate the photographic inspection of each surface of the hydraulic pump housing and the unevenness of each surface;

[0045] Since the hydraulic pump housing needs to be driven to rotate at various angles, the electric push rod 8 needs to be frequently driven to extend and retract. If the electric push rod 8 has stably clamped the hydraulic pump housing when it is extended but is not stopped in time, the electric push rod 8 may be damaged. Frequent use increases the probability of damage. Therefore, a detection mechanism 11 is provided on the electric push rod 8 for detecting whether the electric push rod 8 is fully extended.

[0046] The testing table 1 is provided with a positioning mechanism 12 for positioning the hydraulic pump housing, so that the subsequent hydraulic pump housing can be placed more quickly and in the center.

[0047] The rotating mechanism 10 includes a reduction motor 101 arranged on the mounting plate 9, and a connecting block 102 is provided on the output shaft of the reduction motor 101, and a reduction motor 2 103 is provided at both ends of the connecting block 102, and a mounting block 104 is provided on the output shaft of the reduction motor 2 103, and an electric telescopic rod 105 is provided on the mounting block 104, and a clamping block 106 is provided on the output end of the electric telescopic rod 105, and a rubber pad 107 is provided on the clamping block 106, and the clamping block 106 is clamped by the rubber pad 107. The reduction motor 101 is used to drive the clamped hydraulic pump housing to rotate at various angles, and the reduction motor 2 103 can drive the mounting block 104 to rotate alone, so that the position of the clamping block 106 can be changed, and then cooperated with the electric telescopic rod 105 to make the position of the clamping block 106 further adjustable, so that the rubber pad 107 can contact the flat part of the hydraulic pump housing as much as possible, thereby increasing the clamping area to improve the clamping stability.

[0048] The detection mechanism 11 includes a fixed block 111 arranged on the electric push rod 8, the fixed block 111 is fixed in position, a pressure sensor 112 is arranged on the fixed block 111, the pressure sensor 112 is electrically connected to the electric push rod 8, and a spring 113 is connected to the detection end of the pressure sensor 112, the spring 113 is provided with a connecting frame 114, and the connecting frame 114 is connected to the mounting plate 9. When the electric push rod 8 is extended, the connecting frame 114 squeezes the pressure sensor 112 through the spring 113, so that the pressure sensor 112 recognizes that the pressure value is gradually increasing. When the rubber pad 107 has stably clamped the hydraulic pump housing, the electric push rod 8 can no longer extend. At this time, the pressure value no longer increases, and a stop signal can be sent to the electric push rod 8. The instruction to stop extension is to avoid damaging the electric push rod 8. In order to improve the stability of the movement of the connecting frame 114, the connecting frame 114 is slidably sleeved on the guide rod 115, and the guide rod 115 is set on the corner seat 116 connected to the fixed frame 7. Warning lights 117 are set around the top of the fixed frame 7, so that the electric push rod 8 can light up when it is extended and retracted, which serves as a warning. Since the pressure sensor 112 and the reduction motor 101 are in a state of frequent use, they are prone to overheating. Overheating of the pressure sensor 112 will affect its sensitivity and accuracy. Overheating of the reduction motor 101 will affect the accuracy of its driving the hydraulic pump housing to rotate. Therefore, the pressure sensor 112 and the reduction motor 101 are both connected to the cooling component 118.

[0049] The cooling component 118 includes heat sinks 1181 evenly arranged on the outside of the pressure sensor 112. The heat sinks 1181 are connected to the heat ring 1182, the heat ring 1182 is connected to the inverted U-shaped heat sink 1183, and the top of the heat sink 1183 extends into the water tank 1184, so that after the heat is transferred to the heat sink 1183, it can be cooled by the cooling water in the water tank 1184. The top of the water tank 1184 is provided with a water inlet hopper 1185, and the top of the heat sink 1183 is evenly provided with through holes 1186. The water tank 1184 is provided with an inflation device 1187, a water stirring device 1188 and a heat dissipation device 1189 connected to the reduction motor 101.

[0050] The inflatable device 1187 includes a fixed tube 11871 connected to the water tank 1184, the fixed tube 11871 is connected to the air bag 11872 located in the water tank 1184, the fixed tube 11871 is slidably connected to the piston rod 11873, and the piston rod 11873 is connected to the connecting rod 11874, and the connecting rod 11874 is connected to the connecting frame 114. When the connecting frame 114 moves, the connecting rod 11874 moves accordingly, so that the piston rod 11873 moves in the fixed tube 11871. The fixed pipe 11871 moves, thereby causing the airbag 11872 to expand or contract, thereby causing the water level of the cooling water to rise and fall. When rising, it covers the heat sink 1183 and enters the water inlet hopper 1185. When falling, it is lower than the top of the heat sink 1183, so that the cooling water can flow relative to the heat sink 1183 and the through hole 1186, thereby better cooling down. After entering the water inlet hopper 1185, the heat exchange area with the air is increased, and the water itself can also be cooled better.

[0051] The water stirring device 1188 includes an agitator 11883 connected to the water tank 1184 through a bearing. The agitator 11883 is located on the side of the airbag 11872. Gears 11882 are provided on the front and rear sides of the agitator 11883, and a gear rod 11881 is engaged with the gear 11882. The gear rod 11881 is connected to the mounting plate 9. When the mounting plate 9 moves, the gear rod 11881 drives the gear 11882 to rotate, and then the agitator 11883 rotates, thereby avoiding the problem of poor cooling effect caused by the non-flow of cooling water.

[0052] The heat dissipation device 1189 includes two heat sinks 11891 evenly arranged on the outside of the reduction motor 101. The two heat sinks 11891 are connected to the two heat dissipation rings 11892. The two heat dissipation rings 11892 are connected to the two inverted L-shaped heat dissipation racks 11893. The two heat dissipation racks 11893 pass through the water tank 1184 in the horizontal direction. When the heat dissipation racks 11893 move, they can move in the water tank 1184, so that different positions of the heat sinks 11893 can be exposed to cooling water to cool the reduction motor 101.

[0053] The second embodiment is mainly different from the first embodiment in that: the positioning mechanism 12 includes a hydraulic telescopic rod 121 arranged on the top of the detection platform 1, and the piston rod of the hydraulic telescopic rod 121 is connected to the support plate 122. The function of the hydraulic telescopic rod 121 is to change the height of the support plate 122, so that when hydraulic pump housings of different heights are placed on the support plate 122, they are in a centered state relative to the reduction motor 101, and the support plate 122 can also move down during rotation to ensure that it does not affect the rotation of the hydraulic pump housing. Through grooves 123 are provided on the front and rear sides of the support plate 122, and a slide plate 124 is slidably connected to the through groove 123, and a spring 2 125 connected to the slide plate 124 is provided on the through groove 123. The spring 2 125 squeezes the slide plate 124 to be fixed to one side of the through groove 123 by its own elastic force. A screw 126 is provided on the slide plate 124, and the screw 126 is slidably connected to the support plate 124 through a bearing. The positioning rod 127 on the support plate 122 is connected to adapt to hydraulic pump housings of different sizes. A guide wheel 128 is provided at the bottom of the slide plate 124, and slide rails 1211 are provided on the front and rear sides of the top of the testing platform 1. Guide rods 129 are slidably connected to the slide rails 1211, and an inclined portion 1210 is provided on the guide rod 129 to contact the guide wheel 128. The front and rear sides of the top of the testing platform 1 are connected to the lifting screw rod 1212 through bearings. The guide rods 129 on both sides are respectively screwed on the lifting screw rods 1212 on both sides. The purpose of setting the lifting screw rod 1212 is to make the height of the guide rod 129 adjustable, so that the guide rod 129 can adapt to support plates 122 of different heights, thereby adapting to hydraulic pump housings of different heights. When the support plate 122 drives the slide plate 124 to rise to the required height, the slide plate 124 can be squeezed and fixed to one side of the through groove 123 by spring 2 125, thereby ensuring the stability of the position of the positioning rod 127.

[0054] A method for using a visual inspection tool for a hydraulic pump housing, using a visual inspection tool for a hydraulic pump housing in the second embodiment, the method comprising the following steps:

[0055] Step 1: Position the hydraulic pump housing using the positioning mechanism 12 according to its height and size. Specifically, first adjust the height of the support plate 122 using the hydraulic telescopic rod 121 so that the hydraulic pump housing placed on the support plate 122 can be in a state of high centering. After adjusting the height of the support plate 122, rotate the lifting screw 1212 to move the guide rod 129 and the inclined portion 1210 up and down, thereby causing the guide wheel 128 to drive the slide plate 124 to slide in the through groove 123 until the spring 125 squeezes and fixes the slide plate 124 to one side of the through groove 123 through its own elastic force. At this time, rotate the screw 126 again to move the positioning rod 127 until it contacts the centrally placed hydraulic pump housing.

[0056] Step 2: By extending the electric push rods 8 on both sides at the same time, the mounting plate 9 is driven to move, so that the rotating mechanisms 10 on both sides clamp the flat part of the hydraulic pump housing. Specifically, the reduction motor 101 can first drive the connecting block 102 to rotate, changing the position of the clamping block 106, and then the reduction motor 2 103 can drive the mounting block 104 to rotate alone, so that the position of the clamping block 106 can be further changed, and then cooperate with the electric telescopic rod 105 to make the position of the clamping block 106 further adjustable, so that the rubber pad 107 can contact the flat part of the hydraulic pump housing as much as possible, and finally the electric push rod 8 is extended to complete the clamping. After the clamping is completed, the hydraulic telescopic rod 121 drives the support plate 122 to move downward to avoid affecting the subsequent rotation of the hydraulic pump housing. When the hydraulic pump housing is uneven, the guide wheel 128 rolls downward on the inclined portion 1210, squeezing the second spring 125, so that the positioning rod 127 automatically moves away from the hydraulic pump housing when it moves downward, reducing the friction with the hydraulic pump housing. Then, the image acquisition camera 5 above is used to take pictures, and the detection results are displayed through the display mechanism 4. When the top of the hydraulic pump housing is uneven, the hydraulic pump housing is first driven by the left and right rotating mechanisms 10 to rotate slightly in the front and back directions to take pictures, and then the electric push rods 8 on the front and back sides are extended at the same time to fix it. At this time, the left and right rotating mechanisms 10 are moved away, so that the front and back rotating mechanisms 10 can drive the hydraulic pump housing to rotate slightly in the left and right directions. Repeat step 2 to complete the photo detection of each surface of the hydraulic pump housing and the unevenness of each surface.

[0057] Step 3: When the electric push rod 8 is extended and drives the rotating mechanism 10 on the mounting plate 9 to clamp the hydraulic pump housing, the detection mechanism 11 is used to detect. When it is found that the electric push rod 8 can no longer be extended, the extension instruction of the electric push rod 8 is automatically stopped immediately. Specifically, when the electric push rod 8 is extended, the connecting frame 114 squeezes the pressure sensor 112 through the spring 113, so that the pressure sensor 112 recognizes that the pressure value is gradually increasing. When the rubber pad 107 has stably clamped the hydraulic pump housing, the electric push rod 8 can no longer be extended. At this time, the pressure value no longer increases, and a stop extension instruction can be sent to the electric push rod 8 to avoid damage to the electric push rod 8. Since the pressure sensor 112 and the reduction motor 101 are both in a state of frequent use, they are prone to overheating. The pressure sensor 112 Overheating will affect its sensitivity and accuracy. Overheating of the reduction motor 101 will affect the accuracy of its driving the hydraulic pump housing to rotate. Therefore, when the electric push rod 8 is extended and retracted, the pressure sensor 112 and the reduction motor 101 can also be cooled by the cooling water in the water tank 1184. Among them, the heat dissipation frame 11893 moves in the water tank 1184 for mobile cooling, and the stirrer 11883 on the water stirring device 1188 automatically rotates to stir the cooling water, which can ensure the flow of the water body. At the same time, the air bag 11872 in the inflation device 1187 expands back and forth, causing the water level of the cooling water to rise and fall, which can flow and cool the heat dissipation frame 1183. At the same time, after rising, it enters the water inlet hopper 1185 with a larger cross-section, thereby improving the cooling efficiency of the heat dissipation frame 1183 and the cooling water itself.

[0058] Step 4: After the inspection is completed, remove the hydraulic pump housing, and continue to quickly position the hydraulic pump housing through the positioning mechanism 12 when putting in the next hydraulic pump housing, so that the rotating mechanism 10 can quickly clamp the hydraulic pump housing. Specifically, place the hydraulic pump housing on the support plate 122, and the hydraulic telescopic rod 121 drives the support plate 122 to rise to the specified height. At this time, the height of the hydraulic pump housing is just in the middle, and the spring 2 125 pushes the slide plate 124 to move, so that the positioning rod 127 moves until the slide plate 124 fits on one side of the through groove 123. At this time, the positioning rod 127 makes the front and rear of the hydraulic pump housing The position remains centered, and when the positioning rod 127 pushes the hydraulic pump housing forward and backward, in order to prevent the spring 2 125 from being compressed and causing the slide 124 to be unable to contact one side of the through groove 123, thereby causing the positioning rod 127 to be unable to move to the specified position, a high-thrust spring is used for the spring 2 125. In this way, when the positioning rod 127 pushes the hydraulic pump housing, the slide 124 cannot compress the spring 2 125. After maintaining the height and the front and rear position centered, the efficiency is higher and faster when clamped by the clamping blocks 106 on the left and right sides, so that the clamping blocks 106 can quickly find the previously clamped position for clamping.

[0059] Among them, when the image acquisition camera 5 takes pictures of different surfaces of the hydraulic pump housing in step 2, the height is changed by the lifting guide rail 2 to improve the picture taking effect.

[0060] At the same time, the contents not described in detail in this specification belong to the existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used.

[0061] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0062] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A visual inspection tool for a hydraulic pump housing, characterized by: The invention comprises a testing platform (1); The detection platform (1) is provided with a lifting guide rail (2), an industrial control computer (3) and a display mechanism (4), and an image acquisition camera (5) is provided at the output end of the lifting guide rail (2); The detection platform (1) is provided with a mounting rod (6), and a fixing frame (7) is provided on the top of the mounting rod (6), electric push rods (8) are provided on the inner walls of the fixing frame (7), and the output ends of the electric push rods (8) are provided with mounting plates (9), and a rotating mechanism (10) is provided on the mounting plate (9), and the rotating mechanisms (10) on the opposite sides are used for clamping and rotating the hydraulic pump housing; The electric push rod (8) is provided with a detection mechanism (11) for detecting whether the electric push rod (8) is extended to the correct position; The testing platform (1) is provided with a positioning mechanism (12) for positioning the hydraulic pump housing.

2. The visual inspection tool for a hydraulic pump housing according to claim 1, characterized in that: The rotating mechanism (10) comprises a first reduction motor (101) arranged on a mounting plate (9); a connecting block (102) is arranged on the output shaft of the first reduction motor (101); a second reduction motor (103) is arranged at both ends of the connecting block (102); a mounting block (104) is arranged on the output shaft of the second reduction motor (103); an electric telescopic rod (105) is arranged on the mounting block (104); a clamping block (106) is arranged on the output end of the electric telescopic rod (105); and a rubber pad (107) is arranged on the clamping block (106).

3. The visual inspection tool for a hydraulic pump housing according to claim 2, characterized in that: The detection mechanism (11) includes a fixed block (111) arranged on the electric push rod (8), a pressure sensor (112) is arranged on the fixed block (111), the pressure sensor (112) is electrically connected to the electric push rod (8), and a spring (113) is connected to the detection end of the pressure sensor (112), a connecting frame (114) is arranged on the spring (113), and the connecting frame (114) is connected to the mounting plate (9), the connecting frame (114) is slidably sleeved on the guide rod (115), and the guide rod (115) is arranged on an angle seat (116) connected to the fixed frame (7), and warning lights (117) are arranged around the top of the fixed frame (7), and the pressure sensor (112) and the reduction motor (101) are both connected to the cooling component (118).

4. The visual inspection tool for a hydraulic pump housing according to claim 3, characterized in that: The cooling component (118) includes heat sinks (1181) uniformly arranged on the outside of the pressure sensor (112), the heat sinks (1181) are all connected to heat rings (1182), the heat rings (1182) are connected to inverted U-shaped heat sinks (1183), and the top of the heat sink (1183) extends into the water tank (1184), the top of the water tank (1184) is provided with a water inlet hopper (1185), the top of the heat sink (1183) is uniformly provided with through holes (1186), and the water tank (1184) is provided with an air filling device (1187), a water stirring device (1188) and a heat dissipation device (1189) connected to the reduction motor (101).

5. The visual inspection tool for a hydraulic pump housing according to claim 4, characterized in that: The inflation device (1187) includes a fixed tube (11871) connected to the water tank (1184), the fixed tube (11871) is connected to an air bag (11872) located in the water tank (1184), a piston rod (11873) is slidably connected in the fixed tube (11871), and the piston rod (11873) is connected to a connecting rod (11874), and the connecting rod (11874) is connected to the connecting frame (114).

6. The visual inspection tool for a hydraulic pump housing according to claim 5, characterized in that: The water stirring device (1188) includes an agitator (11883) connected to the water tank (1184) through a bearing. The agitator (11883) is located on the side of the airbag (11872). Gears (11882) are provided on the front and rear sides of the agitator (11883), and the gears (11882) are meshed with gear rods (11881). The gear rods (11881) are connected to the mounting plate (9).

7. The visual inspection tool for a hydraulic pump housing according to claim 4, characterized in that: The heat dissipation device (1189) includes two heat sinks (11891) evenly arranged on the outside of the first reduction motor (101), the two heat sinks (11891) are connected to the second heat dissipation ring (11892), the second heat dissipation ring (11892) is connected to the second inverted L-shaped heat dissipation frame (11893), and the second heat dissipation frame (11893) passes through the water tank (1184) in the horizontal direction.

8. The visual inspection tool for a hydraulic pump housing according to claim 1, characterized in that: The positioning mechanism (12) includes a hydraulic telescopic rod (121) arranged on the top of the detection platform (1), the piston rod of the hydraulic telescopic rod (121) is connected to a support plate (122), the front and rear sides of the support plate (122) are both provided with through grooves (123), a slide plate (124) is slidably connected to the through groove (123), and a spring (125) connected to the slide plate (124) is provided on the through groove (123), and a screw (126) is provided on the slide plate (124), and the screw (126) is slidably connected to the support plate (122) through a bearing. 22), a guide wheel (128) is provided at the bottom of the slide plate (124), a slide rail (1211) is provided on both the front and rear sides of the top of the detection platform (1), a guide rod (129) is slidably connected to the slide rail (1211), and an inclined portion (1210) is provided on the guide rod (129) for contacting the guide wheel (128), and a lifting screw rod (1212) is connected to both the front and rear sides of the top of the detection platform (1) through a bearing, and the guide rods (129) on both sides are screwed to the lifting screw rods (1212) on both sides respectively.

9. A method for using a visual inspection tool for a hydraulic pump housing, characterized in that: Using the visual inspection tool for a hydraulic pump housing according to any one of claims 1 to 8, the method comprises the following steps: Step 1: Positioning the hydraulic pump housing by means of a positioning mechanism (12) according to the height and size of the housing; Step 2: by extending the electric push rods (8) on both sides at the same time, the mounting plate (9) is driven to move, so that the rotating mechanisms (10) on both sides clamp the flat part of the hydraulic pump housing, and then take pictures through the image acquisition camera (5) above, and display the detection results through the display mechanism (4). When the top of the hydraulic pump housing is uneven, the rotating mechanisms (10) on both sides are used to drive the hydraulic pump housing to rotate slightly in the front and back directions, and then the electric push rods (8) on both sides are extended at the same time, so that the rotating mechanisms (10) on both sides are used to drive the hydraulic pump housing to rotate slightly in the left and right directions. Repeat step 2 to complete the photo detection of each surface of the hydraulic pump housing and the uneven parts of each surface; Step 3: When the electric push rod (8) is extended to drive the rotating mechanism (10) on the mounting plate (9) to clamp the hydraulic pump housing, the detection mechanism (11) is used to detect that when it is found that the electric push rod (8) cannot be extended any further, the extension instruction of the electric push rod (8) is automatically stopped immediately; Step 4: After the inspection is completed, the hydraulic pump housing is placed in the next one by continuing to quickly position the hydraulic pump housing through the positioning mechanism (12), so that the rotating mechanism (10) can quickly clamp the hydraulic pump housing.

10. The method for using the visual inspection tool for a hydraulic pump housing according to claim 9, characterized in that: In the second step, when the image acquisition camera (5) takes pictures of different surfaces of the hydraulic pump housing, the height is changed by lifting and lowering the lifting guide rail (2).

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