Nondestructive testing device for surface quality of gear pump part

Abstract

The invention relates to the technical field of gear defect detection, and discloses a gear pump part surface quality nondestructive testing device which comprises a conveyor body, a conveying chain plate is arranged in the conveyor body in a surrounding mode, side baffles are symmetrically arranged on the two sides of the conveying chain plate, and a plurality of sets of detection tool mechanisms are evenly distributed on the conveying chain plate. The right end of the conveyor body is riveted with a material distributing base through two sets of connecting arms, and an annular limiting inner chamber is formed in the material distributing base. The whole CCD camera base is driven by the connecting shaft to do intermittent circular motion, the first lens does circular motion around the inner shaft ring, meanwhile, the second lens does circular motion around the outer side of the outer tooth by a circle, the first lens and the second lens take pictures of different positions of the gear piece during pause every time, and the operation is repeated by a circle, so that the gear piece can be accurately positioned. The surface defect detection of the whole gear piece is completed, the synchronous detection of the inner ring and the outer teeth can be realized, the detection efficiency is obviously improved, and the photographing distance is uniform and consistent.

Description

Technical Field

[0001] The present invention relates to the technical field of gear defect detection, and particularly relates to a non-destructive detection device for the surface quality of gear pump parts. Background Technique

[0002] A gear pump is a rotary pump that changes the working volume through gear meshing and rotation to achieve liquid transportation or pressurization. It sucks in liquid through the formation of a vacuum on the disengaged side of the gears and discharges the liquid by compressing the volume on the meshing side. It has the characteristics of strong self-priming ability, compact structure, and insensitivity to oil contamination. The core components of a gear pump include a driving gear, a driven gear, and a pump body, and high quality requirements are imposed on the gears. Wear and fracture of the external teeth of the gears lead to problems in gear meshing transmission, and unevenness of the inner ring for connecting the rotating shaft causes looseness between the gear and the rotating shaft. All of the above will affect the operation of the gear pump. Therefore, we use a gear surface detection device during the production and processing process.

[0003] There are many technical problems in the use of existing gear surface detection devices. First, the gear needs to be positioned before detection. Manual positioning has poor accuracy and is time-consuming and laborious. Using a manipulator for positioning causes certain wear on the outer surface of the gear, and the use and maintenance costs are high. Second, the detection positions of the gear include the inner ring and the external teeth. Currently, the detection device can only detect them separately, and the operation steps are cumbersome, resulting in low detection efficiency. Third, when judging whether a gear part has defects by taking pictures, the defect positions of the gear part cannot be marked in time, resulting in the need for workers to re-determine the defect positions of the gear part according to the taken pictures during the subsequent secondary screening, which is time-consuming and laborious.

[0004] In summary, considering that the existing facilities cannot meet the working requirements, for this reason, we propose a non-destructive detection device for the surface quality of gear pump parts. Summary of the Invention

[0005] The main purpose of the present invention is to provide a non-destructive detection device for the surface quality of gear pump parts, which can effectively solve the problems in the background technique.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is as follows: A non-destructive detection device for the surface quality of gear pump parts includes a conveyor main body. A transport chain plate is disposed around the inside of the conveyor main body. Side baffles are symmetrically disposed on both sides of the transport chain plate. A number of groups of detection tooling mechanisms are evenly distributed on the transport chain plate. The number of the detection tooling mechanisms is preferably 2 - 10 groups. The detection tooling mechanism includes a gear detection table. The upper end surface of the gear detection table is used to place gear parts, and the lower end of the gear detection table is fixed to the transport chain plate by a connecting plate.

[0007] As a preferred embodiment of the non-destructive testing device for the surface quality of a gear pump part according to the present invention, the following is provided: A hydraulic cylinder is vertically installed at the middle position inside the gear detection table. A hydraulic rod is movably arranged upward inside the hydraulic cylinder. The upper end of the hydraulic rod is welded with an alignment roller. An opening for the movement of the alignment roller is vertically penetrated upward inside the gear detection table. A plurality of groups of alignment blocks are symmetrically distributed on the outer periphery of the upper end of the alignment roller. The number of the alignment blocks is preferably 3 - 4 groups. Card slots for receiving the alignment blocks are respectively formed on the upper end surface of the gear detection table. The number of the card slots is preferably 3 - 4 groups.

[0008] As a preferred embodiment of the non-destructive testing device for the surface quality of a gear pump part according to the present invention, the following is provided: An overturning groove for the movement of the alignment block is formed outward inside the alignment roller. Two groups of short shafts are symmetrically welded horizontally on both sides of the alignment block. The short shafts are fixed to the inner wall of the alignment roller by damping bearings. Curved grooves are formed on the end surfaces of each group of short shafts. A bending spring is movably arranged inside the curved groove. An extrusion rod extends into the lower position inside the curved groove. The extrusion rod is connected to the end of the bending spring by a spring connecting sleeve. The outer end of the extrusion rod is fixed to the inner wall of the alignment roller by a fixing seat.

[0009] As a preferred embodiment of the non-destructive testing device for the surface quality of a gear pump part according to the present invention, the following is provided: An arc portion is arranged at the end of the alignment block away from the overturning groove. A guiding slope surface is arranged at the lower end of the alignment block. A plurality of groups of guiding wheels are equidistantly installed on the guiding slope surface. The number of the guiding wheels is preferably 4 - 8 groups. A part of the guiding wheels extends out of the guiding slope surface to act on the gear part.

[0010] As a preferred embodiment of the non-destructive testing device for the surface quality of a gear pump part according to the present invention, the following is provided: The right end of the conveyor main body is riveted with a material distributing seat through two connecting arms. An annular limiting inner chamber is formed inside the material distributing seat. Material ports communicating with the annular limiting inner chamber are symmetrically formed on the left and right outer side surfaces of the material distributing seat. A motor housing is riveted at the bottom of the material distributing seat. A first servo motor is inclinedly installed inside the motor housing. The upper end of the first servo motor is connected with a rotating column through a coupling. The rotating column deviates from the vertical position. The rotating column and the inner wall of the annular limiting inner chamber are respectively connected by a first inner bearing and a first bearing seat. Two groups of gear sleeve rods perpendicular to the rotating column are symmetrically installed on the rotating column. The gear sleeve rods are for the gear part to pass through. When the detection tooling mechanism moves to the right arc position of the transport chain plate, it is offset and docked with one of the gear sleeve rods.

[0011] As a preferred embodiment of the non-destructive testing device for the surface quality of a gear pump part according to the present invention, the following is provided: A support frame is arranged at the middle position on the outer side of the conveyor main body. A rodless cylinder is vertically installed inside the support frame. An elevating motor base is connected inside the rodless cylinder. A second servo motor is vertically installed inside the elevating motor base. The lower end of the second servo motor is connected to a connecting shaft through a coupling. The middle part of the connecting shaft is fixed to the inner wall of the elevating motor base through a second bearing seat. A CCD camera base is welded to the lower end of the connecting shaft. A limiting cylinder frame for the up and down movement of the CCD camera base is riveted between the two side baffles. A camera assembly is arranged inside the CCD camera base. An outer shielding cover is connected to the lower end of the CCD camera base.

[0012] As a preferred embodiment of the non-destructive testing device for the surface quality of a gear pump part according to the present invention, the following is provided: A connecting bearing is fixed at the middle position of the lower end of the CCD camera base. A stop platform is arranged below the connecting bearing and inside the outer shielding cover. The middle position of the upper end of the stop platform is inserted upward into the connecting bearing by a positioning rod. An anti-slip pattern acting on the end face of the gear part is arranged on the lower end face of the stop platform. Communication holes are vertically opened through the middle parts of the stop platform and the positioning rod. The camera assembly extends downward through the communication hole by a first optical detection rod. A second inner bearing is arranged between the first optical detection rod and the communication hole. The first optical detection rod rotates around the stop platform. A first detection head is horizontally arranged at the lower end of the first optical detection rod. The first detection head is located inside the shaft circle of the gear part. A first lens is installed in the middle of the first detection head. A first light source is evenly distributed at the edge position of the first detection head. The number of the first light sources is preferably 4-6 groups.

[0013] As a preferred embodiment of the non-destructive testing device for the surface quality of a gear pump part according to the present invention, the following is provided: The camera assembly extends downward into the area between the stop platform and the outer shielding cover by a second optical detection rod. A second detection head is horizontally arranged at the lower end of the second optical detection rod. The second detection head is located outside the outer teeth of the gear part. A second lens is installed in the middle of the second detection head. The second lens and the first lens are arranged facing each other. A second light source is evenly distributed at the edge position of the second detection head. The number of the second light sources is preferably 4-6 groups.

[0014] As a preferred embodiment of the non-destructive testing device for the surface quality of a gear pump part according to the present invention, the following is provided: A support arm is fixed outside the second optical detection rod. A marking round box is installed at the end of the support arm. A power seat is arranged at the upper end of the marking round box. A wheel housing extends outward from the inside of the power seat. A side pulley is rotatably arranged inside the wheel housing. A guiding track for the side pulley to extend into is installed around the outer side surface of the stop platform.

[0015] As a preferred embodiment of the non-destructive detection device for the surface quality of a gear pump part according to the present invention, the following is provided: An arc wheel is rotatably arranged at the middle position inside the power seat. The arc wheel is sleeved on the drive shaft. Both ends of the drive shaft are fixed to the inner wall of the power seat by third bearing seats. One end of the drive shaft extends outward and is connected to a third servo motor through a coupling. The third servo motor horizontally penetrates the outer surface of the power seat.

[0016] As a preferred embodiment of the non-destructive detection device for the surface quality of a gear pump part according to the present invention, the following is provided: An inner groove is formed at the middle position of the upper end of the marking round box. A spring step is arranged at the bottom of the inner groove. A guiding port communicating with the inner groove is formed through the marking round box. A scribing tool is movably arranged in the guiding port. A round table is arranged at the upper end of the scribing tool. A reset spring sleeved on the scribing tool is fixed between the bottom of the round table and the spring step. A pressure wheel is rotatably arranged inside the round table. A part of the pressure wheel extends out of the round table and acts on the wheel surface of the arc wheel.

[0017] As a preferred embodiment of the non-destructive detection device for the surface quality of a gear pump part according to the present invention, the following is provided: A marking liquid cylinder is arranged outside the middle part of the marking round box. A liquid adding port is formed at the upper end of the marking liquid cylinder. A liquid dropping hole is formed at the lower end of the marking liquid cylinder. A capillary flow channel corresponding to the liquid dropping hole is obliquely formed outward inside the scribing tool. A liquid storage inner cavity is formed at the lower position inside the scribing tool. The liquid storage inner cavity is communicated with the lower end of the capillary flow channel. A plugging hole communicating with the liquid storage inner cavity is formed at the bottom of the scribing tool. A plugging ball is movably arranged on the plugging hole. A flexible marking part acting on the end face of the gear part is arranged at the lower end of the scribing tool.

[0018] As a preferred embodiment of the non-destructive detection device for the surface quality of a gear pump part according to the present invention, the following is provided: A program control console is arranged on one side of the conveyor main body relative to the support frame. The upper end of the program control console includes a display and several groups of controllers.

[0019] As a preferred embodiment of the non-destructive detection device for the surface quality of a gear pump part according to the present invention, the following is provided: A feeding conveyor is arranged on one side of the material distribution seat away from the conveyor main body.

[0020] The present invention provides a non-destructive detection device for the surface quality of a gear pump part through improvement. Compared with the prior art, it has the following remarkable improvements and advantages: Start the first servo motor. The rotating column rotates 180°. The gear sleeve rod moves to the feeding port at the left position of the feeding seat. At this time, the gear part slides left along the gear sleeve rod again. One set of detection tooling mechanisms just moves to the right arc position of the transport chain plate. The gear part disengages from the gear sleeve rod and hangs on the directional roller obliquely below, achieving the purpose of automatic transfer and feeding, saving time and effort, and being suitable for the automated production line.

[0021] Let the hydraulic rod retract downward to make the directional roller have driving force, causing several groups of alignment blocks to contact the middle position of the end face of the gear part during the downward movement. Some guiding slopes generate acting forces on the end face of the gear part, and with the guiding effect of the guiding wheel, it causes the gear part to automatically adjust its position through relative sliding on the detection table until it is in the centered position and all the alignment blocks pass downward through the inner ring of the shaft of the gear part, achieving the functions of automatic deviation correction and positioning. Compared with the existing positioning means, it has low cost and high efficiency.

[0022] The connecting shaft drives the entire CCD camera base to make intermittent circular motion. The first lens makes circular motion around the inner shaft ring of the gear part, and at the same time, the second lens makes circular motion around the outer teeth of the gear part for one week. Each time it pauses, the first lens and the second lens take pictures of different positions of the gear part respectively. After such a cycle for one week, the surface defect detection of the entire gear part is completed. It can realize the synchronous detection of the inner ring and the outer teeth, significantly improve the detection efficiency, and the photographing distance is uniform and consistent; design the outer shielding cover and the stop table that cooperate with the CCD camera base to form linkage, shade all positions of the gear part, avoid the interference of external factors, and significantly improve the photographing quality.

[0023] The scribing tool moves in the guiding port. It docks with the capillary channel and the liquid dripping hole for a short time. A small amount of marking liquid in the marking liquid cylinder surges into the capillary channel from the liquid dripping hole and flows into the liquid storage inner cavity along the capillary channel for temporary storage. When the scribing tool extends downward to the marking circle and contacts the end face of the gear part with the flexible marking part, it causes the flexible marking part to be compressed and jacks up the plug ball at the plugging hole position, allowing the marking liquid in the liquid storage inner cavity to flow downward into the flexible marking part. After being evenly dispersed, it is contaminated onto the end face of the gear part, achieving the purpose of scribing and marking, improving the efficiency of secondary screening, and saving time and effort. Description of the Drawings

[0024] Figure 1 It is a schematic diagram of the overall structure of one direction of a device for non-destructive detection of the surface quality of a gear pump part according to the present invention; Figure 2 It is a schematic diagram of the overall structure of another direction of a device for non-destructive detection of the surface quality of a gear pump part according to the present invention; Figure 3 It is a schematic diagram of the structure of the detection tooling from a top view angle according to the present invention; Figure 4 This is a schematic diagram of the structure of the detection tooling structure of the present invention when viewed from above; Figure 5 It is a transmission connection schematic diagram of the directional roller of the present invention; Figure 6 It is a schematic diagram of the specific structure of the position correction block of the present invention; Figure 7 It is a schematic diagram of the end surface structure of the short shaft of the present invention; Figure 8 This is a schematic diagram of the external structure of the material distribution seat of the present invention; Figure 9 This is a schematic diagram of the internal structure of the material distribution seat of the present invention; Figure 10 It is a schematic diagram of the transmission structure of the CCD camera holder of the present invention; Figure 11 It is a schematic diagram of the internal structure of the outer shielding cover of the present invention; Figure 12 is a cross-sectional view of a CCD camera holder of the present invention; Figure 13 This is a schematic diagram of the installation position of the marking round box in the second embodiment of the present invention; Figure 14 It is a schematic diagram of the external structure of the power seat of the present invention; Figure 15 It is a schematic diagram of the lower end structure of the round marking box of the present invention; Figure 16 It is a schematic diagram of the upper structure of the round marking box of the present invention; Figure 17 is a cross-sectional view of the scriber of the present invention; Figure 18 It is a schematic diagram of the internal transmission structure of the power base of the present invention.

[0025] In the figure: 1. conveyor body; 2. transport chain plate; 3. side baffle; 4. gear part; 5. support frame; 6. rodless cylinder; 10. detection fixture mechanism; 11. gear detection platform; 12. connecting plate; 13. hydraulic cylinder; 14. hydraulic rod; 15. directional roller; 16. roller mouth; 17. card slot; 18. flip slot; 20. correction block; 21. short shaft; 22. damping bearing; 23. curved slot; 24. bending spring; 25. fixed seat; 26. extrusion rod; 27. spring connecting sleeve; 30. arc part; 31. guide slope; 32. guide wheel; 40. Material separation seat; 41. Annular limiting inner chamber; 42. Material inlet; 43. Motor housing; 44. First servo motor; 45. Rotating column; 46. First inner bearing; 47. First bearing seat; 48. Gear sleeve rod; 50. Lifting motor seat; 51. Second servo motor; 52. Connecting shaft; 53. Second bearing seat; 54. CCD camera seat; 55. Outer shielding cover; 56. Annular motion space; 57. Connecting bearing; 60. Stopping platform; 61. Positioning rod; 62. Anti-slip pattern; 63. Second inner bearing; 64. First optical detection rod; 65. First lens; 66. First light source; 67. Second optical detection rod; 68. Second lens; 69. Second light source; 70. Support arm; 71. Marking round box; 72. Power seat; 73. Wheel housing; 74. Side pulley; 75. Guide rail; 76. Third servo motor; 77. Drive shaft; 78. Third bearing seat; 79. Arc wheel; 80. Inner groove; 81. Spring step; 82. Guide port; 83. Marking tool; 84. Round platform; 85. Return spring; 86. Pressure wheel; 87. Flexible marking part; 90. Marking liquid cylinder; 91. Capillary channel; 92. Liquid storage inner cavity; 93. Sealing hole; 94. Sealing ball; 100. Program control console; 101. Display; 102. Limit cylinder frame; 103. Connecting arm. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Embodiment 1: As Figures 1-12 shown, this embodiment provides a non-destructive detection device for the surface quality of gear pump parts, including a conveyor main body 1. A transport chain plate 2 is disposed around the inside of the conveyor main body 1. A driving component is disposed inside the transport chain plate 2. Side baffles 3 are symmetrically disposed on both sides of the transport chain plate 2. A number of groups of detection tooling mechanisms 10 are evenly distributed on the transport chain plate 2.

[0028] Specifically, the detection tooling mechanism 10 includes a gear detection table 11. The upper end surface of the gear detection table 11 is used to place the gear part 4. The lower end of the gear detection table 11 is fixed to the transport chain plate 2 by a connecting plate 12, as Figure 3 and Figure 4 shown.

[0029] Among them, a hydraulic cylinder 13 is vertically installed at the middle position inside the gear detection table 11. A hydraulic rod 14 is movably arranged upward inside the hydraulic cylinder 13. A directional roller 15 is welded to the upper end of the hydraulic rod 14. A roller opening 16 for the movement of the directional roller 15 is vertically penetrated and opened upward inside the gear detection table 11. The roller opening 16 plays a role in guiding and accommodating, as Figures 3-5 shown.

[0030] Furthermore, several groups of alignment blocks 20 are symmetrically distributed on the outer periphery of the upper end portion of the directional roller 15. Card slots 17 for accommodating the alignment blocks 20 respectively are opened on the upper end surface of the gear detection table 11. Each group of card slots 17 communicates with the roller opening 16, as Figures 3-5 shown.

[0031] Among them, a flipping groove 18 for the movement of the alignment blocks 20 is opened outward inside the directional roller 15. Short shafts 21 are symmetrically and horizontally welded on both sides of the alignment block 20. The short shafts 21 are fixed to the inner wall of the directional roller 15 by damping bearings 22. The damping bearings 22 provide a certain damping force to prevent the alignment blocks 20 from rotating self, as Figure 5 and Figure 6 shown.

[0032] Among them, curved grooves 23 are opened on the end surfaces of each group of short shafts 21. A bending spring 24 is movably arranged inside the curved grooves 23. An extrusion rod 26 extends into the lower position inside the curved grooves 23. The extrusion rod 26 is connected to the end of the bending spring 24 by a spring connecting sleeve 27. The outer end of the extrusion rod 26 is fixed to the inner wall of the directional roller 15 by a fixing seat 25. The initial position of the extrusion rod 26 is located at the lower end portion of the curved grooves 23, as Figure 6 and Figure 7 shown.

[0033] Among them, an arc portion 30 is arranged at one end of the alignment block 20 away from the flipping groove 18. A guiding slope 31 is arranged at the lower end of the alignment block 20. The guiding slope 31 is inclined. Several groups of guiding wheels 32 are equidistantly installed on the guiding slope 31. A part of the guiding wheels 32 extends out of the guiding slope 31 and acts on the gear part 4 to play a role in guiding and pushing, as Figure 6 shown.

[0034] Furthermore, the right end portion of the conveyor main body 1 is riveted with a material distributing seat 40 through two connecting arms 103. An annular limiting inner chamber 41 is opened inside the material distributing seat 40. Material ports 42 communicating with the annular limiting inner chamber 41 are symmetrically opened on the left and right outer side surfaces of the material distributing seat 40. One is for feeding and the other is for discharging, as Figure 1 、 Figure 2 and Figure 8 shown.

[0035] In this embodiment, a motor housing 43 is riveted to the bottom of the material distribution base 40. A first servo motor 44 is inclinedly installed in the motor housing 43. The upper end of the first servo motor 44 is connected to a rotating column 45 through a coupling. The rotating column 45 deviates from the vertical position to facilitate the sliding of the gear member 4 on the gear sleeve rod 48. The rotating column 45 and the inner wall of the annular limiting inner chamber 41 are respectively connected by a first inner bearing 46 and a first bearing seat 47, as Figure 8 and Figure 9 shown.

[0036] In this embodiment, two groups of gear sleeve rods 48 perpendicular to the rotating column 45 are symmetrically installed on the rotating column 45. The gear sleeve rods 48 are for the gear member 4 to pass through. When the detection tooling mechanism 10 moves to the right arc position of the transport chain plate 2, it is offset and docked with one group of gear sleeve rods 48, as Figure 9 shown.

[0037] Furthermore, a support frame 5 is arranged at the middle position on the outer side of the conveyor main body 1. A rodless cylinder 6 is vertically installed in the support frame 5. An elevator motor base 50 is connected inside the rodless cylinder 6. A second servo motor 51 is vertically installed inside the elevator motor base 50. The lower end of the second servo motor 51 is connected to a connecting shaft 52 through a coupling. The middle part of the connecting shaft 52 is fixed to the inner wall of the elevator motor base 50 through a second bearing seat 53, as Figure 1 、 Figure 2 and Figure 10 shown.

[0038] Among them, a CCD camera base 54 is welded to the lower end of the connecting shaft 52. A limiting cylinder frame 102 for the up and down movement of the CCD camera base 54 is riveted between the two side baffles 3. The limiting cylinder frame 102 plays a limiting role. A camera assembly is arranged inside the CCD camera base 54. The camera assembly includes a lens, a sensor and a signal processing module. An outer shielding cover 55 is connected to the lower end of the CCD camera base 54, as Figure 1 、 Figure 2 and Figure 10 shown.

[0039] In this embodiment, a connecting bearing 57 is fixed at the middle position of the lower end of the CCD camera base 54. A stop platform 60 is arranged below the connecting bearing 57 and inside the outer shielding cover 55. The middle position of the upper end of the stop platform 60 is inserted upward into the inside of the connecting bearing 57 by a positioning rod 61. The stop platform 60 and the CCD camera base 54 move relative to each other. An anti-slip pattern 62 acting on the end face of the gear member 4 is arranged on the lower end face of the stop platform 60 to prevent relative movement between the two and ensure the stability of the gear member 4 during detection. An annular movement space 56 is formed between the stop platform 60 and the outer shielding cover 55, as Figure 11 and Figure 12 shown.

[0040] Among them, the middle parts of the stop platform 60 and the positioning rod 61 are penetrated with a connecting hole, and the camera assembly uses the No. 1 optical detection rod 64 to pass downward through the connecting hole. The No. 1 optical detection rod 64 is located at the center of the gear part 4. A second inner bearing 63 is arranged between the No. 1 optical detection rod 64 and the connecting hole. The No. 1 optical detection rod 64 rotates around the stop platform 60. The lower end of the No. 1 optical detection rod 64 is horizontally provided with a No. 1 detection head, which is located in the shaft ring of the gear part 4. A No. 1 lens 65 is installed in the middle of the No. 1 detection head. A No. 1 light source 66 is evenly distributed at the edge of the No. 1 detection head. The light source is distributed around the No. 1 lens 65 to improve the clarity of the photography. Figure 11 and Figure 12 shown.

[0041] Among them, the camera assembly uses the No. 2 optical detection rod 67 to extend downward into the annular motion space 56. The lower end of the No. 2 optical detection rod 67 is horizontally provided with a No. 2 detection head, which is located outside the outer teeth of the gear member 4. The middle of the No. 2 detection head is installed with a No. 2 lens 68. The No. 2 lens 68 and the No. 1 lens 65 are arranged opposite to each other. The edge position of the No. 2 detection head is evenly distributed with a No. 2 light source 69, which is distributed around the No. 2 lens 68 to improve the clarity of the photography. Figure 11 and Figure 12 shown.

[0042] Furthermore, a program console 100 is provided on one side of the conveyor body 1 relative to the support frame 5. The upper end of the program console 100 includes a display 101 and a plurality of controllers, such as Figure 1 and Figure 2 shown.

[0043] Furthermore, a loading conveyor is provided on a side of the material dividing seat 40 away from the conveyor body 1 .

[0044] When this embodiment is in use, the gear parts 4 on the production line are first hung in turn on the gear sleeve rod 48 on the right side of the material distribution seat 40 by the loading conveyor, and the gear part 4 slides to the left along the inclined gear sleeve rod 48, and the first servo motor 44 is started, and the rotating column 45 rotates 180°, driving the gear sleeve rod 48 carrying the gear part 4 to move to the material port 42 on the left side of the material distribution seat 40 (the gear sleeve rod 48 moves along the wall of the annular limiting inner chamber 41). At this time, the gear part 4 slides to the left again along the gear sleeve rod 48, and one group of detection tooling mechanisms 10 just moves to the right end arc position of the transport chain plate 2, and the gear part 4 detaches from the gear sleeve rod 48, hangs on the directional roller 15 obliquely below, and passes through at least one group of correction blocks 20.

[0045] At this time, the detection tooling mechanism 10 of this group moves counterclockwise upward along with the transport chain plate 2. The position of the guiding roller 15 gradually becomes vertical. Since the gear member 4 has a certain weight, it will exert a pressure on all the alignment blocks 20, causing all the alignment blocks 20 to turn downward around their respective flipping grooves 18 (at this time, the short shaft 21 rotates and moves relative to the extrusion rod 26, causing the bending spring 24 in the curved groove 23 to be compressed to a certain extent) until the gear member 4 passes through all the alignment blocks 20 and drops onto the upper end surface of the gear detection table 11 along the guiding roller 15. At this time, all the alignment blocks 20 return to the horizontal position under the action of the reset elastic force of the bending spring 24.

[0046] At this time, the detection tooling mechanism 10 carrying the gear member 4 moves to directly below the CCD camera base 54 along with the transport chain plate 2. The hydraulic rod 14 is retracted downward, and the guiding roller 15 descends, causing several groups of alignment blocks 20 to contact the center position of the end face of the gear member 4 during the downward movement. Some guiding slopes 31 generate a force on the end face of the gear member 4. With the guiding function of the guiding wheel 32, the gear member 4 automatically adjusts its position by relative sliding on the gear detection table 11 until it is in the centered position and all the alignment blocks 20 pass downward through the inner circle of the shaft of the gear member 4 and enter their respective card slots 17.

[0047] At this time, the rodless cylinder 6 is operated to drive the lifting motor base 50 to descend, causing the CCD camera base 54 to move downward along the limit cylinder frame 102. The outer shielding cover 55 covers the entire gear member 4 from the outside, forming a light shield around the outer teeth of the gear member 4. At the same time, the stop platform 60 presses on the end face of the gear member 4 to achieve a positioning effect. The two use the anti-slip patterns 62 to maintain relative fixation. The stop platform 60 forms a light shield for the inner shaft circle of the gear member 4. At this time, the second servo motor 51 is started, and the entire CCD camera base 54 is driven to perform an intermittent circular motion through the connecting shaft 52 (the stop platform 60 remains stationary). The first lens 65 makes a circular motion around the inner shaft circle of the gear member 4, responsible for taking pictures of the inner shaft circle. At the same time, the second lens 68 makes a circular motion around the outside of the outer teeth of the gear member 4 for one week, responsible for taking pictures of the outer teeth. Each time it pauses, the first lens 65 and the second lens 68 take pictures of different positions of the gear member 4 respectively. After circulating for one week, the surface defect detection of the entire gear member 4 is completed, and the data is timely uploaded to the display 101. The program control console 100 makes corresponding quality inspection judgments based on the taken pictures.

[0048] Embodiment 2: Currently, when detecting the surface of the gear part 4, it is only possible to determine whether the gear part 4 has defects by taking pictures, but the defect positions of the gear part 4 cannot be marked in a timely manner, resulting in the need to manually search for the defect positions of the gear part 4 based on the pictures during subsequent secondary inspections, which is time-consuming and laborious and reduces work efficiency. To solve the above technical problems, a support arm 70 is fixed outside the second optical detection rod 67, and a marking round box 71 is installed at the end of the support arm 70. A power seat 72 is provided at the upper end of the marking round box 71, as Figures 13-18 shown.

[0049] Specifically, a wheel housing 73 is provided outwardly inside the power seat 72. A side pulley 74 is rotatably arranged inside the wheel housing 73, and a part of the side pulley 74 extends outside the wheel housing 73. A guiding track 75 for the side pulley 74 to extend into is installed around the outer side surface of the stop platform 60. When the power seat 72 makes a circular motion along with the second optical detection rod 67, the side pulley 74 moves along the guiding track 75, playing a role in guiding and stabilizing, as Figure 13 and Figure 14 .

[0050] Among them, an arc wheel 79 is rotatably arranged at the middle position inside the power seat 72. A relatively gentle convex part is provided on a part of the arc wheel 79. The arc wheel 79 is sleeved on the driving shaft 77. Both ends of the driving shaft 77 are fixed to the inner wall of the power seat 72 by third bearing seats 78. One end of the driving shaft 77 extends outward and is connected to a third servo motor 76 through a coupling. The third servo motor 76 is horizontally arranged through the outer surface of the power seat 72, as Figure 18 shown.

[0051] Furthermore, an inner groove 80 is opened at the middle position of the upper end part of the marking round box 71. A spring stop step 81 is provided at the bottom of the inner groove 80. A guiding port 82 communicating with the inner groove 80 is penetrated through the inside of the marking round box 71. A marking tool 83 is movably arranged inside the guiding port 82, as Figure 16 shown.

[0052] Among them, a round platform 84 is provided at the upper end of the marking tool 83. The round platform 84 moves linearly in the inner groove 80. A return spring 85 sleeved on the outside of the marking tool 83 is fixed between the bottom of the round platform 84 and the spring stop step 81. The return spring 85 generates an elastic force to drive the marking tool 83 to return upward after being compressed. A pressure wheel 86 is rotatably arranged inside the round platform 84, and a part of the pressure wheel 86 extends outside the round platform 84 and acts on the wheel surface of the arc wheel 79, as Figure 16 shown.

[0053] Among them, a marking liquid cylinder 90 is arranged on the outer side of the middle part of the marking round box 71. A liquid adding port is opened at the upper end of the marking liquid cylinder 90, and a liquid dropping hole is opened at the lower end of the marking liquid cylinder 90. The liquid dropping hole is located in the inner wall area of the guiding port 82, and the scribing device 83 performs sliding sealing on it, as Figure 14 and Figure 15 shown.

[0054] In this embodiment, a capillary flow channel 91 corresponding to the liquid dropping hole is obliquely opened outward inside the scribing device 83. A liquid storage inner cavity 92 is opened at a lower position inside the scribing device 83. The bottom of the liquid storage inner cavity 92 is a spherical groove. The liquid storage inner cavity 92 is communicated with the lower end of the capillary flow channel 91. A plugging hole 93 communicated with the liquid storage inner cavity 92 is opened at the bottom of the scribing device 83. A plugging ball 94 is movably arranged on the plugging hole 93. A part of the plugging ball 94 covers the plugging hole 93. A flexible marking part 87 acting on the end face of the gear part 4 is arranged at the lower end of the scribing device 83. The flexible marking part 87 can be made of sponge stamping material, as Figure 17 shown.

[0055] When in use in this embodiment, when the first lens 65 captures a defect of the inner shaft ring or the second lens 68 captures a defect of the outer teeth (the two positions face each other and can share a marking position), the third servo motor 76 is started, the driving shaft 77 rotates, causing the arc wheel 79 to perform a circular motion. The protruding part of the arc wheel 79 continuously contacts the pressure wheel 86 during the downward movement, generating a pressure effect, so that the round table 84 and the scribing device 83 slowly move downward. The scribing device 83 moves in the guiding port 82, and the capillary flow channel 91 is butted with the liquid dropping hole for a short time (at this time, the third servo motor 76 is closed intermittently). A small amount of marking liquid in the marking liquid cylinder 90 floods into the capillary flow channel 91 from the liquid dropping hole and flows into the liquid storage inner cavity 92 along the capillary flow channel 91 for temporary storage. The scribing device 83 continues to move downward. When the scribing device 83 extends downward out of the marking round box 71 and contacts the end face of the gear part 4 by using the flexible marking part 87, an extrusion force is generated between the two, causing the flexible marking part 87 to be compressed and pushing up the plugging ball 94 at the position of the plugging hole 93, so that the marking liquid in the liquid storage inner cavity 92 flows downward from the plugging hole 93 into the flexible marking part 87, and after being evenly dispersed, it is extruded downward and contaminated on a partial area of the end face of the gear part 4 to achieve the purpose of scribing and marking. When the flexible marking part 87 separates from the gear part 4 upward, the plugging ball 94 loses the restraint and rolls back to the position of the plugging hole 93 again.

[0056] It should be noted that in this text, relational terms such as first and second are only used 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 term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0057] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A non-destructive testing device for the surface quality of gear pump parts, comprising a conveyor body (1), wherein a conveyor chain plate (2) is arranged around the inside of the conveyor body (1), and characterized in that: A plurality of detection fixture mechanisms (10) are evenly distributed on the transport chain plate (2), the detection fixture mechanism (10) comprising a gear detection platform (11), a hydraulic cylinder (13) is vertically installed in the middle position inside the gear detection platform (11), a hydraulic rod (14) is movably arranged inside the hydraulic cylinder (13) to move upward, an orientation roller (15) is welded to the upper end of the hydraulic rod (14), a plurality of correcting blocks (20) are symmetrically distributed on the outer periphery of the upper end of the orientation roller (15), and a turning groove (18) is opened outward inside the orientation roller (15) for the correcting block (20) to move; The right end of the conveyor body (1) is riveted with a material distribution seat (40) through two groups of connecting arms (103), the bottom of the material distribution seat (40) is riveted with a motor housing (43), a first servo motor (44) is obliquely installed in the motor housing (43), the upper end of the first servo motor (44) is connected to a rotating column (45) through a coupling, the rotating column (45) deviates from the vertical position, and two groups of gear sleeve rods (48) are symmetrically installed on the rotating column (45) and are perpendicular to the rotating column (45), and when the detection fixture mechanism (10) moves to the right end arc position of the transport chain plate (2), it is offset and docked with one of the groups of gear sleeve rods (48); A second servo motor (51) is vertically installed inside the lifting motor seat (50); the lower end of the second servo motor (51) is connected to a connecting shaft (52) via a coupling; a CCD camera seat (54) is welded to the lower end of the connecting shaft (52); a camera assembly is arranged inside the CCD camera seat (54); and the lower end of the CCD camera seat (54) is connected to an outer shielding cover (55).

2. A nondestructive testing device for the surface quality of gear pump parts according to claim 1, characterized in that: Side baffles (3) are symmetrically arranged on both sides of the transport chain plate (2); the lower end of the gear detection platform (11) is fixed to the transport chain plate (2) by means of a connecting plate (12); the upper end surface of the gear detection platform (11) is used to place the gear member (4); a roller opening (16) is provided in the gear detection platform (11) and is provided for the movement of the directional roller (15); and the upper end surface of the gear detection platform (11) is provided with slots (17) for receiving the positioning blocks (20).

3. A nondestructive testing device for the surface quality of gear pump parts according to claim 2, characterized in that: Short shafts (21) are symmetrically welded horizontally on both sides of the positioning block (20). The short shafts (21) are fixed by means of a damping bearing (22) and the inner wall of the directional roller (15). A curved groove (23) is provided on the end surface of each group of the short shafts (21). A bending spring (24) is movably arranged inside the curved groove (23). An extrusion rod (26) extends into the lower position of the curved groove (23). The extrusion rod (26) is connected to the end of the bending spring (24) by means of a spring connecting sleeve (27). The outer end of the extrusion rod (26) is fixed by means of a fixing seat (25) and the inner wall of the directional roller (15).

4. A gear pump parts surface quality nondestructive testing device according to claim 3, characterized in that: An arc portion (30) is provided at one end of the positioning block (20) away from the flip groove (18), and a guide slope (31) is provided at the lower end of the positioning block (20). A plurality of groups of guide wheels (32) are equidistantly mounted on the guide slope (31), and parts of the guide wheels (32) extend out of the guide slope (31) to act on the gear member (4).

5. The nondestructive testing device for the surface quality of gear pump parts according to claim 1 is characterized in that: An annular limiting inner chamber (41) is provided inside the material distribution seat (40), and material ports (42) communicating with the annular limiting inner chamber (41) are symmetrically provided on the left and right outer sides of the material distribution seat (40). The rotating column (45) and the inner wall of the annular limiting inner chamber (41) are connected by means of a first inner bearing (46) and a first bearing seat (47), respectively, and the gear sleeve rod (48) is provided for the gear member (4) to pass through.

6. The nondestructive testing device for the surface quality of gear pump parts according to claim 1, characterized in that: A support frame (5) is provided at the middle position of the outer side of the conveyor body (1), a rodless cylinder (6) is vertically installed in the support frame (5), a lifting motor seat (50) is connected to the inside of the rodless cylinder (6), and the middle part of the connecting shaft (52) is fixed by the second bearing seat (53) and the inner wall of the lifting motor seat (50); A connecting bearing (57) is fixed at the middle position of the lower end of the CCD camera seat (54); a stop platform (60) is provided below the connecting bearing (57) and inside the outer shielding cover (55); the middle position of the upper end of the stop platform (60) is inserted upward into the interior of the connecting bearing (57) by means of a positioning rod (61); the lower end surface of the stop platform (60) is provided with anti-slip grooves (62) that interact with the end surface of the gear member (4); and an annular movement space (56) is formed between the stop platform (60) and the outer shielding cover (55).

7. A nondestructive testing device for the surface quality of gear pump parts according to claim 6, characterized in that: The middle parts of the stop platform (60) and the positioning rod (61) are penetrated with a connecting hole, the camera assembly uses a No. 1 optical detection rod (64) to pass downward through the connecting hole, a second inner bearing (63) is arranged between the No. 1 optical detection rod (64) and the connecting hole, the No. 1 optical detection rod (64) rotates around the stop platform (60), a No. 1 detection head is horizontally arranged at the lower end of the No. 1 optical detection rod (64), the No. 1 detection head is located in the shaft ring of the gear member (4), a No. 1 lens (65) is installed in the middle of the No. 1 detection head, and a No. 1 light source (66) is evenly distributed at the edge of the No. 1 detection head; The camera assembly extends downward into the annular motion space (56) by means of a No. 2 optical detection rod (67); a No. 2 detection head is horizontally arranged at the lower end of the No. 2 optical detection rod (67); the No. 2 detection head is located outside the outer teeth of the gear member (4); a No. 2 lens (68) is installed in the middle of the No. 2 detection head; the No. 2 lens (68) and the No. 1 lens (65) are arranged opposite to each other; and a No. 2 light source (69) is evenly distributed at the edge of the No. 2 detection head.

8. The nondestructive testing device for the surface quality of gear pump parts according to claim 7, characterized in that: A support arm (70) is fixed to the outside of the second optical detection rod (67), a marking round box (71) is installed at the end of the support arm (70), a power seat (72) is arranged at the upper end of the marking round box (71), a wheel shell (73) is arranged outside the inside of the power seat (72), a side pulley (74) is rotatably arranged inside the wheel shell (73), a guide track (75) for the side pulley (74) to extend into is installed around the outer side surface of the stop platform (60), and an arc wheel (79) is rotatably arranged at the middle position inside the power seat (72).

9. A nondestructive testing device for the surface quality of gear pump parts according to claim 8, characterized in that: An inner groove (80) is provided at the middle position of the upper end of the marking circular box (71), a spring stop step (81) is provided at the bottom of the inner groove (80), a guide opening (82) connected to the inner groove (80) is provided inside the marking circular box (71), a scriber (83) is movably provided in the guide opening (82), a round table (84) is provided at the upper end of the scriber (83), a return spring (85) sleeved on the outside of the scriber (83) is fixed between the bottom of the round table (84) and the spring stop step (81), a pressure wheel (86) is rotatably provided inside the round table (84), a part of the pressure wheel (86) extends out of the round table (84) and acts on the wheel surface of the arc wheel (79).

10. The nondestructive testing device for the surface quality of gear pump parts according to claim 9, characterized in that: A marking liquid cartridge (90) is arranged on the outer side of the middle part of the marking circular box (71), a dripping hole is provided at the lower end of the marking liquid cartridge (90), a capillary flow channel (91) corresponding to the dripping hole is provided in the interior of the marking tool (83) and tilted outward, a liquid storage cavity (92) is provided at the lower position of the interior of the marking tool (83), the liquid storage cavity (92) is communicated with the lower end of the capillary flow channel (91), a blocking hole (93) is provided at the bottom of the marking tool (83) and is communicated with the liquid storage cavity (92), a blocking ball (94) is movably provided on the blocking hole (93), and a flexible marking portion (87) is provided at the lower end of the marking tool (83) for acting on the end surface of the gear member (4).

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