A non-destructive testing device for the surface quality of gear pump parts

Abstract

The present invention relates to the technical field of gear defect detection, and discloses a non-destructive detection device for the surface quality of gear pump parts, including a conveyor main body. A transport chain plate is arranged around the inside of the conveyor main body. Side baffles are symmetrically arranged 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 right end of the conveyor main body is riveted with a material distribution seat through two connecting arms. An annular limiting inner chamber is formed inside the material distribution seat. In the present invention, the entire CCD camera seat is driven by a connecting shaft to perform an intermittent circular motion. The first lens performs a circular motion around the inner shaft ring, and at the same time, the second lens performs a circular motion around the outside of the outer teeth for one week. Each time it pauses, the first lens and the second lens respectively take pictures of different positions of the gear part. After such a cycle for one week, the surface defect detection of the entire gear part is completed. Synchronous detection of the inner ring and the outer teeth can be achieved, significantly improving the detection efficiency, and the photographing distances are 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 Art

[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 vacuum formed on the disengaged side of the gear 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 pollution. 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 where the gears are used to connect the rotating shafts causes looseness between the gears and the rotating shafts. 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 gears need 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 gears, and the use and maintenance costs are high. Second, the detection positions of the gears include the inner ring and the external teeth. Currently, the detection devices 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 parts cannot be marked in time, resulting in the need for workers to re-determine the defect positions of the gear parts 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 art.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0007] 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.

[0008] As a preferred solution of a non-destructive testing device for the surface quality of a gear pump part according to the present invention, wherein: 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, a directional roller is welded to the upper end of the hydraulic rod, a roller opening for the movement of the directional roller is vertically penetrated and opened inside the gear detection table, several groups of alignment blocks are symmetrically distributed on the outer periphery of the upper end of the directional roller, the number of the alignment blocks is preferably 3-4 groups, and card slots for receiving the alignment blocks are opened on the upper end surface of the gear detection table, and the number of the card slots is preferably 3-4 groups.

[0009] As a preferred solution of a non-destructive testing device for the surface quality of a gear pump part according to the present invention, wherein: a turning groove for the movement of the alignment block is opened outward inside the directional roller, two groups of short shafts are symmetrically welded horizontally on both sides of the alignment block, the number of the short shafts is 2 groups, the short shafts are fixed to the inner wall of the directional roller by damping bearings, curved grooves are opened 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, and the outer end of the extrusion rod is fixed to the inner wall of the directional roller by a fixing seat.

[0010] As a preferred solution of a non-destructive testing device for the surface quality of a gear pump part according to the present invention, wherein: an arc portion is arranged at one end of the alignment block away from the turning groove, a guiding slope surface is arranged at the lower end of the alignment block, several groups of guiding wheels are equidistantly installed on the guiding slope surface, the number of the guiding wheels is preferably 4-8 groups, and a part of the guiding wheels extends out of the guiding slope surface to act on the gear part.

[0011] As a preferred solution of a non-destructive testing device for the surface quality of a gear pump part according to the present invention, wherein: a material distributing seat is riveted to the right end of the conveyor main body through two groups of connecting arms, an annular limiting inner chamber is opened inside the material distributing seat, material ports communicating with the annular limiting inner chamber are symmetrically opened on the left and right outer side surfaces of the material distributing seat, a motor housing is riveted to the bottom of the material distributing seat, a first servo motor is inclinedly installed inside the motor housing, a rotating column is connected to the upper end of the first servo motor 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, and 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.

[0012] As a preferred solution of a non-destructive detection device for the surface quality of a gear pump part according to the present invention, wherein: a support frame is provided at the middle position on the outer side of the conveyor main body, a rodless cylinder is vertically installed inside the support frame, a lifting motor seat is connected inside the rodless cylinder, a second servo motor is vertically installed inside the lifting motor seat, the lower end of the second servo motor is connected with a connecting shaft through a coupling, the middle part of the connecting shaft is fixed to the inner wall of the lifting motor seat through a second bearing seat, a CCD camera seat is welded to the lower end of the connecting shaft, a limit cylinder frame for the up-and-down movement of the CCD camera seat is riveted between the two side baffles, a camera assembly is arranged inside the CCD camera seat, and an outer shielding cover is connected to the lower end of the CCD camera seat.

[0013] As a preferred solution of a non-destructive detection device for the surface quality of a gear pump part according to the present invention, wherein: a connecting bearing is fixed at the middle position of the lower end of the CCD camera seat, a stop platform is arranged below the connecting bearing and inside the outer shielding cover, a positioning rod is inserted upward into the connecting bearing from the middle position of the upper end surface of the stop platform, an anti-slip pattern acting on the end surface of the gear part is arranged on the lower end surface of the stop platform, communication holes are formed through the middle parts of the stop platform and the positioning rod, the camera assembly passes 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, and 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.

[0014] As a preferred solution of a non-destructive detection device for the surface quality of a gear pump part according to the present invention, wherein: the camera assembly extends downward to 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, and 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.

[0015] As a preferred solution of a non-destructive detection device for the surface quality of a gear pump part according to the present invention, wherein: a support arm is fixed to the outside of 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 shell extends outward from the inside of the power seat, a side pulley is rotatably arranged inside the wheel shell, and a guiding track for the side pulley to extend into is installed around the outer side surface of the stop platform.

[0016] 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 wheel is rotatably provided 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.

[0017] 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 inner groove is provided at the middle position of the upper end of the marking round box. A spring stop step is provided at the bottom of the inner groove. A guiding port communicating with the inner groove is penetrated through the interior of the marking round box. A scribing tool is movably provided in the guiding port. A round table is provided at the upper end of the scribing tool. A reset spring sleeved on the outside of the scribing tool is fixed between the bottom of the round table and the spring stop step. A pressure wheel is rotatably provided 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.

[0018] 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 marking liquid cylinder is provided on the outer side of the middle part of the marking round box. A liquid adding port is provided at the upper end of the marking liquid cylinder. A liquid dropping hole is provided at the lower end of the marking liquid cylinder. A capillary flow channel corresponding to the liquid dropping hole is obliquely opened outward inside the scribing tool. A liquid storage inner cavity is provided at a 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 provided at the bottom of the scribing tool. A plugging ball is movably provided on the plugging hole. A flexible marking part acting on the end face of the gear part is provided at the lower end of the scribing tool.

[0019] 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 program control console is provided on one side of the conveyor main body opposite to the support frame. The upper end of the program control console includes a display and several groups of controllers.

[0020] 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 feeding conveyor is provided on one side of the material distribution seat away from the conveyor main body.

[0021] The present invention provides a non-destructive testing 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:

[0022] Start the first servo motor. The rotating column rotates 180°. The gear sleeve rod moves to the material outlet at the left side of the material distribution seat. At this time, the gear part slides leftward 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.

[0023] 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.

[0024] The connecting shaft drives the entire CCD camera base to perform 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 cycling 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 distance of taking pictures 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 quality of taking pictures.

[0025] 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, the flexible marking part is compressed and the plugging ball at the plugging hole is lifted, allowing the marking liquid in the liquid storage inner cavity to flow downward into the flexible marking part from the plugging hole. After being evenly dispersed, it is contaminated on 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

[0026] Figure 1 It is a schematic diagram of the overall structure of a non-destructive detection device for the surface quality of a gear pump part in one direction according to the present invention;

[0027] Figure 2 It is a schematic diagram of the overall structure of a non-destructive detection device for the surface quality of a gear pump part in another direction according to the present invention;

[0028] Figure 3Schematic top - view structure diagram of the detection tooling structure of the present invention;

[0029] Figure 4 Schematic bottom - view structure diagram of the detection tooling structure of the present invention;

[0030] Figure 5 Schematic diagram of the drive connection of the orienting roller of the present invention;

[0031] Figure 6 Schematic diagram of the specific structure of the alignment block of the present invention;

[0032] Figure 7 Schematic diagram of the end - face structure of the short shaft of the present invention;

[0033] Figure 8 Schematic external structure diagram of the material - distributing seat of the present invention;

[0034] Figure 9 Schematic internal structure diagram of the material - distributing seat of the present invention;

[0035] Figure 10 Schematic drive - structure diagram of the CCD camera seat of the present invention;

[0036] Figure 11 Schematic internal structure diagram of the outer shielding cover of the present invention;

[0037] Figure 12 Cross - sectional view of the CCD camera seat of the present invention;

[0038] Figure 13 Schematic diagram of the installation position of the marking round box in the second embodiment of the present invention;

[0039] Figure 14 Schematic external structure diagram of the power seat of the present invention;

[0040] Figure 15 Schematic diagram of the lower - end structure of the marking round box of the present invention;

[0041] Figure 16 Schematic diagram of the upper - end structure of the marking round box of the present invention;

[0042] Figure 17 Cross - sectional view of the line - marking device of the present invention;

[0043] Figure 18 Schematic diagram of the internal drive structure of the power seat of the present invention.

[0044] In the figure: 1, conveyor main body; 2, transport chain plate; 3, side baffle; 4, gear member; 5, support frame; 6, rodless cylinder; 10, detection tooling mechanism; 11, gear detection table; 12, connecting plate; 13, hydraulic cylinder; 14, hydraulic rod; 15, guiding roller; 16, roller opening; 17, card slot; 18, flipping slot; 20, alignment correcting 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 portion; 31, guiding slope; 32, guiding wheel;

[0045] 40, material distributing seat; 41, annular limiting inner chamber; 42, material opening; 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, receiving bearing; 60, stop 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;

[0046] 70, support arm; 71, marking round box; 72, power seat; 73, wheel housing; 74, side pulley; 75, guiding track; 76, third servo motor; 77, driving shaft; 78, third bearing seat; 79, arc wheel; 80, inner groove; 81, spring step; 82, guiding port; 83, line marker; 84, round platform; 85, reset spring; 86, pressure wheel; 87, flexible marking portion; 90, marking liquid cylinder; 91, capillary flow channel; 92, liquid storage inner cavity; 93, blocking hole; 94, blocking ball; 100, program control console; 101, display; 102, limiting cylinder frame; 103, connecting arm. Specific embodiments

[0047] 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.

[0048] Embodiment 1: As Figures 1 - 12As shown in the figure, this embodiment provides a non-destructive testing device for the surface quality of gear pump parts, including a conveyor main body 1. Inside the conveyor main body 1, a transport chain plate 2 is arranged in a surrounding manner. A driving component is arranged inside the transport chain plate 2. Side baffles 3 are symmetrically arranged 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.

[0049] 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.

[0050] 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 upward inside the gear detection table 11. The roller opening 16 plays a role of guiding and accommodating, as Figures 3 - 5 shown.

[0051] Furthermore, a number of groups of alignment blocks 20 are symmetrically distributed on the outer periphery of the upper end part of the directional roller 15. Card slots 17 for accommodating the alignment blocks 20 are respectively 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.

[0052] 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 blocks 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, as Figure 5 and Figure 6 shown.

[0053] Among them, a curved groove 23 is opened on the end surface of each group of short shafts 21. A bending spring 24 is movably arranged inside the curved groove 23. An extrusion rod 26 extends into the lower position inside the curved groove 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 part of the curved groove 23, as Figure 6 and Figure 7 shown.

[0054] Wherein, an arc portion 30 is provided at one end of the alignment block 20 away from the flipping groove 18, a guiding slope surface 31 is provided at the lower end of the alignment block 20, the guiding slope surface 31 is inclined, and a plurality of groups of guiding wheels 32 are equidistantly installed on the guiding slope surface 31. A part of the guiding wheels 32 protrudes outside the guiding slope surface 31 and acts on the gear member 4 to play a guiding and pushing role, as Figure 6 shown.

[0055] Furthermore, the right end 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 formed inside the material distributing seat 40. Material inlets 42 communicating with the annular limiting inner chamber 41 are symmetrically formed on the left and right outer side surfaces of the material distributing seat 40, one for feeding and one for discharging, as Figure 1 、 Figure 2 and Figure 8 shown.

[0056] In this embodiment, a motor housing 43 is riveted to the bottom of the material distributing seat 40. A first servo motor 44 is inclinedly installed inside the motor housing 43. The upper end of the first servo motor 44 is connected with 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.

[0057] 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 of the gear sleeve rods 48, as Figure 9 shown.

[0058] Furthermore, a support frame 5 is provided at the middle position on the outer side of the conveyor main body 1. A rodless cylinder 6 is vertically installed inside the support frame 5. A lifting motor base 50 is connected inside the rodless cylinder 6. A second servo motor 51 is vertically installed inside the lifting motor base 50. The lower end of the second servo motor 51 is connected with a connecting shaft 52 through a coupling. The middle part of the connecting shaft 52 is fixed to the inner wall of the lifting motor base 50 through a second bearing seat 53, as Figure 1 、 Figure 2 and Figure 10 shown.

[0059] Among them, a CCD camera base 54 is welded to the lower end of the connecting shaft 52. A limit cylinder frame 102 for the up-and-down movement of the CCD camera base 54 is riveted between two groups of side baffles 3. The limit 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. The lower end of the CCD camera base 54 is connected with an outer shielding cover 55, as Figure 1 , Figure 2 and Figure 10 shown.

[0060] 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 part 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 part 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.

[0061] Among them, communication holes are penetrated through the middle parts of the stop platform 60 and the positioning rod 61. The camera assembly passes downward through the communication holes by a first optical detection rod 64. The first optical detection rod 64 is located at the central position of the gear part 4. A second inner bearing 63 is arranged between the first optical detection rod 64 and the communication hole. The first optical detection rod 64 rotates around the stop platform 60. A first detection head is horizontally arranged at the lower end of the first optical detection rod 64. The first detection head is located inside the shaft circle of the gear part 4. A first lens 65 is installed in the middle of the first detection head. First light sources 66 are evenly distributed at the edge position of the first detection head. The light sources are distributed around the first lens 65 to improve the clarity of photography, as Figure 11 and Figure 12 shown.

[0062] Among them, the camera assembly extends downward into the annular movement space 56 by a second optical detection rod 67. A second detection head is horizontally arranged at the lower end of the second optical detection rod 67. The second detection head is located outside the external teeth of the gear part 4. A second lens 68 is installed in the middle of the second detection head. The second lens 68 and the first lens 65 are arranged facing each other. Second light sources 69 are evenly distributed at the edge position of the second detection head. The light sources are distributed around the second lens 68 to improve the clarity of photography, as Figure 11 and Figure 12 shown.

[0063] Furthermore, a program control console 100 is arranged on one side of the conveyor main body 1 relative to the support frame 5. The upper end of the program control console 100 includes a display 101 and several groups of controllers, asFigure 1 and Figure 2 as shown

[0064] Furthermore, a loading conveyor is provided on the side of the material distribution seat 40 away from the conveyor main body 1.

[0065] When this embodiment is in use, first use the loading conveyor to hang the gear parts 4 on the production line onto the gear sleeve rods 48 at the right position of the material distribution seat 40 in turn. The gear parts 4 slide leftward along the inclined gear sleeve rods 48. Start the first servo motor 44, and the rotating column 45 rotates 180°, driving the gear sleeve rods 48 carrying the gear parts 4 to move to the material outlet 42 at the left position of the material distribution seat 40 (the gear sleeve rods 48 move along the inner wall of the annular limiting chamber 41). At this time, the gear parts 4 slide leftward along the gear sleeve rods 48 again. One set of detection tooling mechanisms 10 just moves to the right arc position of the transport chain plate 2. The gear parts 4 are separated from the gear sleeve rods 48 and hung on the downward inclined guide rollers 15, and pass through at least one set of alignment blocks 20.

[0066] At this time, this set of detection tooling mechanisms 10 moves counterclockwise upward along with the transport chain plate 2, and the position of the guide rollers 15 gradually becomes vertical. Since the gear parts 4 have a certain weight, they 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 parts 4 pass through all the alignment blocks 20 and fall onto the upper end surface of the gear detection table 11 along the guide rollers 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.

[0067] At this time, the detection tooling mechanism 10 carrying the gear parts 4 moves to directly below the CCD camera seat 54 along with the transport chain plate 2. Let the hydraulic rod 14 retract downward, and the guide rollers 15 descend, causing several groups of alignment blocks 20 to contact the middle position of the end surface of the gear parts 4 during the downward movement. The partial guide slopes 31 generate a force on the end surface of the gear parts 4, and with the guiding action of the guide wheels 32, the gear parts 4 automatically adjust their positions on the gear detection table 11 through relative sliding until they are in the centered position and all the alignment blocks 20 pass downward through the inner circle of the shaft of the gear parts 4 and enter their respective card slots 17.

[0068] 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 part 4 from the outside, forming a light shield around the outer teeth of the gear part 4. At the same time, the stop platform 60 presses on the end face of the gear part 4 to achieve a positioning effect. The two are relatively fixed using the anti-slip pattern 62. The stop platform 60 forms a light shield for the inner shaft ring of the gear part 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 ring of the gear part 4, responsible for taking pictures of the inner shaft ring. At the same time, the second lens 68 makes a circular motion around the outside of the outer teeth of the gear part 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 part 4 respectively. After cycling for one week, the surface defect detection of the entire gear part 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.

[0069] Embodiment 2: Currently, when detecting the surface of the gear part 4, it is only possible to judge 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 according to 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.

[0070] Specifically, a wheel housing 73 is provided outwardly inside the power seat 72. A side pulley 74 is rotatably provided 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 .

[0071] Among them, an arc wheel 79 is rotatably provided 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 using the 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 provided through the outer surface of the power seat 72, as Figure 18 shown.

[0072] Further, an inner groove 80 is provided at the middle position of the upper end 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 scribing tool 83 is movably arranged in the guiding port 82, as Figure 16 shown.

[0073] Among them, a round table 84 is provided at the upper end of the scribing tool 83. The round table 84 moves linearly in the inner groove 80. A return spring 85 sleeved outside the scribing tool 83 is fixed between the bottom of the round table 84 and the spring stop step 81. After being compressed, the return spring 85 generates an elastic force to drive the scribing tool 83 to return upward. A pressure wheel 86 is rotatably arranged inside the round table 84. A part of the pressure wheel 86 extends outside the round table 84 and acts on the wheel surface of the arc wheel 79, as Figure 16 shown.

[0074] Among them, a marking liquid cylinder 90 is provided on the outer side of the middle part of the marking round box 71. A liquid adding port is provided at the upper end of the marking liquid cylinder 90. A liquid dropping hole is provided 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 tool 83 performs sliding sealing on it, as Figure 14 and Figure 15 shown.

[0075] In this embodiment, a capillary flow channel 91 corresponding to the liquid dropping hole is obliquely opened outward inside the scribing tool 83. A liquid storage inner cavity 92 is provided at a lower position inside the scribing tool 83. The bottom of the liquid storage inner cavity 92 is a spherical groove. The liquid storage inner cavity 92 communicates with the lower end of the capillary flow channel 91. A plugging hole 93 communicating with the liquid storage inner cavity 92 is provided at the bottom of the scribing tool 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 provided at the lower end of the scribing tool 83. The flexible marking part 87 can be made of sponge stamping material, as Figure 17 shown.

[0076] In the use of this embodiment, when the first lens 65 captures a defect in the inner shaft ring or the second lens 68 captures a defect in the outer teeth (the two are opposite in position and can share a marking position), the third servo motor 76 is activated to drive the shaft 77 to rotate, 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, causing the turntable 84 and the scribing tool 83 to slowly move downward. The scribing tool 83 moves within the guiding port 82, and the capillary channel 91 is docked with the liquid dripping hole for a short period of time (at this time, the third servo motor 76 is closed with a gap). A small amount of marking liquid in the marking liquid cylinder 90 floods into the capillary channel 91 from the liquid dripping hole and converges into the liquid storage inner cavity 92 along the capillary channel 91 for temporary storage. The scribing tool 83 continues to move downward. When the scribing tool 83 extends downward out of the marking round box 71 and contacts the end face of the gear member 4 with 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 blocking ball 94 at the position of the blocking hole 93, allowing the marking liquid in the liquid storage inner cavity 92 to flow downward into the flexible marking part 87 from the blocking hole 93. After being evenly dispersed, it is extruded downward and contaminates a local area of the end face of the gear member 4 to achieve the purpose of scribing and marking. When the flexible marking part 87 separates from the gear member 4 upward, the blocking ball 94 loses its restraint and rolls back to the position of the blocking hole 93 again.

[0077] It should be noted that in this article, 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 including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0078] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood 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 a gear pump part, comprising a conveyor main body (1), and a transport chain plate (2) is disposed around the inside of the conveyor main body (1), characterized in that: A number of groups of detection tooling mechanisms (10) are evenly distributed on the transport chain plate (2). The detection tooling mechanism (10) includes a gear detection table (11). In the middle position inside the gear detection table (11), a hydraulic cylinder (13) is vertically installed. Inside the hydraulic cylinder (13), a hydraulic rod (14) is movably arranged upward. The upper end of the hydraulic rod (14) is welded with an orientation roller (15). A number of groups of position correction blocks (20) are symmetrically distributed on the outer periphery of the upper end of the orientation roller (15). An overturning groove (18) for the movement of the position correction block (20) is opened outward inside the orientation roller (15). The right end of the conveyor main body (1) is riveted with a material distribution seat (40) through two 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 inside the motor housing (43). The upper end of the first servo motor (44) is connected with a rotating column (45) through a coupling. The rotating column (45) deviates from the vertical position. Two gear sleeve rods (48) perpendicular to the rotating column (45) are symmetrically installed on the rotating column (45). 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 of the 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 with a connecting shaft (52) through a coupling. The lower end of the connecting shaft (52) is welded with a CCD camera seat (54). A camera assembly is arranged inside the CCD camera seat (54). The lower end of the CCD camera seat (54) is connected with an outer shielding cover (55).

2. The non-destructive testing device for the surface quality of a gear pump part 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 table (11) is fixed to the transport chain plate (2) by a connecting plate (12). The upper end surface of the gear detection table (11) is used for placing gear parts (4). A roller opening (16) for the movement of the orientation roller (15) is upwardly penetrated inside the gear detection table (11). Card slots (17) for receiving the position correction blocks (20) are opened on the upper end surface of the gear detection table (11).

3. The non-destructive testing device for the surface quality of a gear pump part according to claim 2, characterized in that: Short shafts (21) are symmetrically and horizontally welded on both sides of the position correction block (20). The short shafts (21) are fixed to the inner wall of the orientation roller (15) by damping bearings (22). 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 groove (23). An extrusion rod (26) extends into the lower position inside the curved groove (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 orientation roller (15) by a fixed seat (25).

4. An apparatus for non-destructive testing of the surface quality of a gear pump part according to claim 3, characterized in that: One end of the alignment block (20) away from the flipping groove (18) is provided with an arc portion (30). A guiding slope surface (31) is arranged at the lower end of the alignment block (20). A plurality of groups of guiding wheels (32) are equidistantly installed on the guiding slope surface (31), and a part of the guiding wheels (32) extends out of the guiding slope surface (31) and acts on the gear member (4).

5. The non-destructive testing device for the surface quality of a gear pump part according to claim 1, characterized in that: An annular limiting inner chamber (41) is formed inside the material distributing seat (40). Material ports (42) communicating with the annular limiting inner chamber (41) are symmetrically formed in the left and right outer side faces of the material distributing seat (40). 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). The gear sleeve rod (48) allows the gear member (4) to pass through.

6. The non-destructive testing device for the surface quality of a gear pump part according to claim 1, characterized in that: 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 inside the support frame (5). A lifting motor seat (50) is connected inside the rodless cylinder (6). The middle part of the connecting shaft (52) is fixed to the inner wall of the lifting motor seat (50) through a second bearing seat (53). 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 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 connecting bearing (57) by a positioning rod (61). 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). An annular movement space (56) is formed between the stop platform (60) and the outer shielding cover (55).

7. An apparatus for non-destructive detection of the surface quality of a gear pump part according to claim 6, characterized in that: Communication holes are formed through the middle parts of the stop platform (60) and the positioning rod (61). The camera assembly passes downward through the communication holes by a first optical detection rod (64). A second inner bearing (63) is arranged between the first optical detection rod (64) and the communication holes. The first optical detection rod (64) rotates around the stop platform (60). A first detection head is horizontally arranged at the lower end of the first optical detection rod (64). The first detection head is located inside the shaft circle of the gear member (4). A first lens (65) is installed in the middle of the first detection head. First light sources (66) are evenly distributed at the edge position of the first detection head. The camera assembly extends downward into the annular movement space (56) by a second optical detection rod (67). A second detection head is horizontally arranged at the lower end of the second optical detection rod (67). The second detection head is located outside the outer teeth of the gear member (4). A second lens (68) is installed in the middle of the second detection head. The second lens (68) is arranged opposite to the first lens (65). Second light sources (69) are evenly distributed at the edge position of the second detection head.

8. An apparatus for non-destructive detection of the surface quality of a gear pump part 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 housing (73) is arranged outward from the inside of the power seat (72). A side pulley (74) is rotatably arranged in the wheel housing (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). An arc wheel (79) is rotatably arranged at the middle position inside the power seat (72).

9. An apparatus for non-destructive inspection of the surface quality of a gear pump part according to claim 8, characterized in that: An inner groove (80) is formed at the middle position of the upper end part of the marking round box (71). A spring stop step (81) is arranged at the bottom of the inner groove (80). A guide port (82) communicating with the inner groove (80) is formed through the inside of the marking round box (71). A scribing tool (83) is movably arranged in the guide port (82). A round platform (84) is arranged at the upper end of the scribing tool (83). A return spring (85) sleeved on the outside of the scribing tool (83) is fixed between the bottom of the round platform (84) and the spring stop step (81). A pressure wheel (86) is rotatably arranged inside the round platform (84). A part of the pressure wheel (86) extends out of the round platform (84) and acts on the wheel surface of the arc wheel (79).

10. A non-destructive testing device for the surface quality of a gear pump part according to claim 9, characterized in that: A marking liquid cylinder (90) is arranged on the outer side of the middle part of the marking round box (71). A liquid dropping hole is formed at the lower end of the marking liquid cylinder (90). A capillary flow channel (91) corresponding to the liquid dropping hole is obliquely formed outward from the inside of the scribing tool (83). A liquid storage inner cavity (92) is formed at the lower position close to the inside of the scribing tool (83). The liquid storage inner cavity (92) is communicated with the lower end of the capillary flow channel (91). A plugging hole (93) communicating with the liquid storage inner cavity (92) is formed at the bottom of the scribing tool (83). A plugging ball (94) is movably arranged on the plugging hole (93). A flexible marking part (87) acting on the end surface of the gear part (4) is arranged at the lower end of the scribing tool (83).

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