Miniature commutator withstand voltage and inner hole comprehensive detection machine

Abstract

The invention discloses a miniature commutator pressure resistance and inner hole comprehensive detection machine, which comprises a rack, an indexing turntable is installed in the middle of the upper end of the rack, a plurality of commutator positioning seats are arranged at the position, close to the edge, of the indexing turntable in the axial direction, and a vibration disc is installed on one side of the indexing turntable. One side of the vibration disc is connected with a discharging groove extending to the position above one commutator positioning seat, and a voltage-withstanding detection assembly is arranged below the discharging groove. A first defective product sorting assembly, a commutator inner hole go gauge detection assembly, a commutator inner hole upper end size detection assembly, a commutator inner hole lower end size detection assembly, a second defective product sorting assembly and a discharging grabbing device are sequentially arranged around the indexing rotary disc from the vibration disc in the anticlockwise direction. According to the invention, various problems of withstand voltage detection and inner hole size multi-channel detection of the existing miniature commutator can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of commutator processing, in particular to a miniature commutator pressure resistance and inner hole comprehensive detection machine. Background Art

[0002] In the prior art, commutators require pressure testing of the commutator segments and inspection of the commutator bore during production. Currently, these tests are performed on separate devices, such as dedicated pressure testing machines and bore testing machines. Transferring products between these devices requires manual operation, which can easily damage the commutator. This is particularly true for miniature commutators, which are small and difficult to locate during pressure testing. Furthermore, bore size testing requires inspection of the middle, top, and bottom of the commutator, creating a cumbersome inspection process. Transferring these smaller miniature commutators between various processes is also difficult, leading to numerous damage during this process. Summary of the Invention

[0003] The present invention provides a comprehensive testing machine for withstand voltage and inner hole of a micro commutator, which can solve various problems in the existing withstand voltage testing and inner hole size multi-channel testing of micro commutators.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a miniature commutator pressure resistance and inner hole comprehensive testing machine, comprising a frame, a dividing turntable is centrally installed on the upper end of the frame, a plurality of commutator positioning seats are axially arranged on the dividing turntable near the edge, a vibration disk is installed on one side of the dividing turntable, a side of the vibration disk is connected with a feed chute extending to the top of one of the commutator positioning seats, a pressure detection component is arranged below the feed chute, the pressure detection component comprises a first lifting cylinder vertically arranged at the lower end of the frame corresponding to the feed chute, the upper end of the first lifting cylinder is connected with a supporting top rod vertically passing through the corresponding commutator positioning seat, pressure probe cylinders corresponding to the commutator segments on the miniature commutator are evenly installed around the circumference of the supporting top rod, and the pressure probe cylinders are arranged evenly around the circumference of the supporting top rod. A pressure-resistant probe which moves radially toward the miniature commutator is installed on the cylinder. The first defective product sorting component, the commutator inner hole gauge detection component, the commutator inner hole upper end size detection component, the commutator inner hole lower end size detection component, the second defective product sorting component and the blanking grabbing device are arranged in sequence counterclockwise from the vibration disk around the dividing turntable. By arranging the first lifting cylinder and the supporting push rod, the miniature commutator coming down from the blanking chute can be caught and positioned. The pressure-resistant probe cylinder has enough space to perform pressure resistance detection on each commutator segment on the miniature commutator. The cooperation of the supporting push rod and the commutator positioning seat can realize that the miniature commutator can smoothly connect the subsequent three inner hole detection processes after the pressure resistance test. The inner hole detection process has a high degree of automation. The processing of four processes can be completed by one device, and the transfer between processes will not damage the miniature commutator.

[0005] Preferably, the pressure-resistant probe cylinders are mounted on a support plate, the lower part of one side of the support plate is connected to the frame, and the support plate can be set up using the space above the dividing turntable to ensure that the pressure-resistant probe cylinder surrounds the entire micro commutator and leaves enough space.

[0006] Preferably, the upper end extending rod of the first lifting cylinder is axially connected to a guide rod, which passes through the top surface of the frame and is detachably connected to the support top rod. The guide rod can guide the lifting and lowering of the support top rod, ensuring that the support top rod can be accurately inserted into the inner hole of the miniature commutator. The support top rod can be replaced as needed.

[0007] Preferably, the commutator inner hole through gauge detection assembly and the commutator inner hole upper end size detection assembly both include a first plate seat and a second lifting cylinder installed on the upper end of the first plate seat, the second lifting cylinder drives the first lifting seat at the front end of the first plate seat to rise and fall, the top of the first lifting seat is installed with a third lifting cylinder, the third lifting cylinder drives the first test lifting plate at the front end of the first lifting seat to rise and fall, the first test lifting plate is installed with a through gauge connecting seat, the lower end of the through gauge connecting seat is connected to the through gauge, the front lower side of the first plate seat is installed with a first horizontal plate extending to the top of the commutator positioning seat, the first horizontal plate is embedded with a guide seat for the through gauge to pass through, the through gauge can be quickly moved to a position close to the commutator through the movement of the first plate seat, at the same time, the third lifting cylinder can drive the through gauge to move stably, and after passing through the guide seat, it can be accurately inserted into the inner hole of the commutator, and the size of the inner hole meets the requirements is judged by the detection value of the resistance encountered by the through gauge.

[0008] Preferably, a first laser sensor is installed on one side of the first lifting seat, and a first sensor reflector plate matching the first laser sensor is installed on one side of the first test lifting plate. The cooperation of the first laser sensor and the first sensor reflector plate can realize the detection of the lifting position of the first test lifting plate. If the first test lifting plate cannot move axially, it means that the inner hole is too small or uneven and is unqualified.

[0009] Preferably, the commutator inner hole lower end size detection assembly includes a second plate seat installed on the upper and lower sides of the frame, the lower end of the second plate seat is installed with a fourth lifting cylinder, the fourth lifting cylinder drives the second lifting seat at the front end of the second plate seat to rise and fall, the lower end of the second lifting seat is installed with a fifth lifting cylinder, and the fifth lifting cylinder drives the second test lifting plate at the front end of the second lifting seat to rise and fall, and the second test lifting plate is installed with a through gauge connecting seat, the upper end of the through gauge connecting seat is connected to the through gauge, and the second plate seat located on the upper side of the frame is installed with a second horizontal plate extending to the upper and lower sides of the commutator positioning seat respectively, and the second horizontal plate is embedded with a guide seat for the through gauge to pass through, and the space at the lower part of the frame is used to set the detection assembly, so as to realize the detection of the lower end of the commutator inner hole without flipping the commutator, and the through gauge can be well guided by setting two second horizontal plates and the guide seat.

[0010] Preferably, a second laser sensor is installed on one side of the second lifting seat, and a second sensor reflector plate matching the second laser sensor is installed on one side of the second test lifting plate. Similarly, the cooperation between the second laser sensor and the second sensor reflector plate can realize the detection of the lifting position of the second test lifting plate. If the second test lifting plate cannot move axially, it means that the inner hole is too small or uneven and is unqualified.

[0011] Preferably, the first defective product sorting component, the second defective product sorting component and the blanking grasping device all include a rotating cylinder installed on one side of the vibration disk and a pneumatic flexible clamp installed on the rotating cylinder. The upper end of the pneumatic flexible clamp is connected to the rotating cylinder by a spring, and the lower end of the frame is vertically installed with a push rod corresponding to the position of the pneumatic flexible clamp, which can pass through the commutator positioning seat to lift the commutator. The miniature commutator on the commutator positioning seat can be lifted by the push rod, which is convenient for the pneumatic flexible clamp to grasp. When the miniature commutator is lifted, the pneumatic flexible clamp can be pushed up a certain distance to ensure that the pneumatic flexible clamp can firmly and accurately grasp the miniature commutator, thereby avoiding the pneumatic flexible clamp from damaging the miniature commutator due to the incorrect position of the miniature commutator.

[0012] Preferably, the first defective product sorting component and the second defective product sorting component also include a transverse cylinder installed on one side of the rotating cylinder, the transverse cylinder is connected to the defective product placement box through a connecting seat, the defective product placement box is divided into at least two placement bins along the movement direction of the transverse cylinder, and / or a discharge conveyor is installed on one side of the rotating cylinder of the discharge grabbing device, and the placement bin can place defective products according to different unreasonable reasons to achieve accurate sorting of different defective products.

[0013] Preferably, the frame is also equipped with a plurality of gauge pressure displays which are electrically connected to the commutator inner hole gauge detection component, the commutator inner hole upper end size detection component and the commutator inner hole lower end size detection component one by one, so that the operator can observe the detection values ​​on each inner hole detection component in real time and adjust the equipment or defective products in time.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The overall structure is compact, and the pressure test and multiple inner hole detection processes of the micro commutator are centrally set up. The various processes are connected in series by a turntable. The micro commutator coming down from the feed chute can be caught and positioned by setting the first lifting cylinder and the supporting push rod. The pressure probe cylinder has enough space to perform pressure test on each commutator segment on the micro commutator. The cooperation of the supporting push rod and the commutator positioning seat can realize the smooth connection of the micro commutator to the subsequent three inner hole detection processes after the pressure test. The inner hole detection process has a high degree of automation. The processing of 4 processes can be completed by one device, and the transfer between processes will not damage the micro commutator. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural diagram of the present invention; Figure 2 It is a top view of the structure of the present invention; Figure 3 for Figure 2 AA cross-sectional structural diagram; Figure 4 for Figure 2 BB cross-sectional structural diagram; Figure 5 for Figure 1 A magnified structural diagram of point A; Figure 6 for Figure 1 The enlarged structure diagram at B; Figure 7 for Figure 1 The enlarged structure diagram at C; Figure 8 for Figure 3 The enlarged structure diagram at D; Figure 9 for Figure 4 Enlarged structure diagram at E.

[0016] Reference numerals: 1. Frame, 11. Second defective product sorting assembly, 12. Commutator positioning seat, 14. Unloading conveyor, 15. Unloading grabbing device, 16. Pressure detection assembly, 161. Pressure probe, 162. First lifting cylinder, 163. Pressure probe cylinder, 164. Support plate, 165. Support push rod, 166. Guide rod, 17. Unloading cylinder, 18. Unloading insert plate, 2. Vibrating plate, 3. Unloading trough, 4. Indexing turntable, 5. First defective product sorting assembly, 6. Commutator inner hole through gauge detection assembly, 60. First plate seat, 61. Second lifting cylinder, 62. First lifting seat, 63. First test lifting plate, 64. Through gauge connecting seat, 65. Through gauge, 66 , first horizontal plate, 67, guide seat, 68, first laser sensor, 69, first sensor reflector, 7, commutator inner hole upper end size detection assembly, 71, third lifting cylinder, 8, through gauge pressure display, 9, commutator inner hole lower end size detection assembly, 91, second test lifting plate, 92, fourth lifting cylinder, 93, fifth lifting cylinder, 94, second laser sensor, 95, second sensor reflector, 96, second lifting seat, 97, second horizontal plate, 99, second plate seat, 101, connecting seat, 102, placement bin, 103, transverse cylinder, 104, defective product placement box, 105, pneumatic flexible clamp, 106, push rod, 107, rotating cylinder. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0018] like Figure 1-9As shown, the present invention solves various problems of the existing pressure resistance detection and inner hole size multi-channel detection of micro commutators and provides the following technical solutions: a micro commutator pressure resistance and inner hole comprehensive detection machine, comprising a frame 1, a dividing turntable 4 is centrally installed on the upper end of the frame 1, and a plurality of commutator positioning seats 12 are axially arranged on the dividing turntable 4 near the edge, a vibration disk 2 is installed on one side of the dividing turntable 4, a feeding trough 3 is connected on one side of the vibration disk 2 and extends to the top of one of the commutator positioning seats 12, and a pressure resistance detection component 16 is arranged below the feeding trough 3, and the pressure resistance detection component 16 includes a first lifting cylinder 162 vertically arranged at the lower end of the frame 1 and corresponding to the feeding trough 3, the upper end of the first lifting cylinder 162 is connected to a support push rod 165 vertically passing through the corresponding commutator positioning seat 12, and the support push rod 165 is evenly installed around the circumference with pressure resistance probes corresponding to the commutator segments on the micro commutator. Needle cylinder 163, the pressure-resistant probe cylinder 163 is equipped with a pressure-resistant probe 161 that moves radially toward the micro commutator, and the dividing turntable 4 is arranged around the vibration disk 2 in a counterclockwise order with a first defective product sorting component 5, a commutator inner hole gauge detection component 6, a commutator inner hole upper end size detection component 7, a commutator inner hole lower end size detection component 9, a second defective product sorting component 11 and a blanking grabbing device 15. By arranging a first lifting cylinder 162 and a supporting push rod 165, the micro commutator coming up and down the blanking trough 3 can be caught and positioned. The pressure-resistant probe cylinder 163 has enough space to perform pressure resistance testing on each commutator segment on the micro commutator. The cooperation of the supporting push rod 165 and the commutator positioning seat 12 can realize that the micro commutator can smoothly connect the subsequent three inner hole detection processes after the pressure resistance test. The inner hole detection process has a high degree of automation. The processing of four processes can be completed by one device, and the transfer between processes will not damage the micro commutator.

[0019] Specifically, the feeding trough 3 is long and narrow, and a storage trough matching the shape of the micro commutator is provided inside it. The upper end of the storage trough is docked with the feeding end of the vibration disk 2, and the micro commutators in the vibration disk 2 can be stacked in the storage trough one after another. A feeding plug-in plate 18 is inserted laterally into the lower end of the feeding trough 3. The feeding plug-in plate 18 is divided into an upper plug-in plate and a lower plug-in plate. One end of the upper plug-in plate and the lower plug-in plate are driven by the feeding cylinder 17 to move laterally, wherein the length of the upper plug-in plate is shorter than that of the lower plug-in plate, and a feeding notch is provided on the lower plug-in plate. When the feeding notch coincides with the feeding trough, the micro commutator on the lower plug-in plate will fall onto the supporting top rod 165. At this time, the upper plug-in plate blocks the micro commutator above, so as to ensure that only one micro commutator can fall at a time.

[0020] Specifically, the dividing turntable 4 has a diameter of 800mm, is equipped with 8 commutator positioning seats 12, has a rotation speed of 5 rpm, and a positioning repeatability accuracy of ±0.005mm; the first lifting cylinder 162 of the pressure detection component 16 has a stroke of 300mm, and the supporting top rod 165 has a diameter of φ1.48±0.005mm, which is suitable for a miniature commutator with an inner hole of φ1.5mm. A positioning step is provided on the top of the supporting top rod 165 to support the miniature commutator, with an insertion depth of 2.5mm; 6 pressure probe cylinders 163 drive the pressure probe 161 to extend 10mm, apply a voltage of 150V for 2 seconds, and detect that the insulation resistance is ≥100MΩ to be qualified.

[0021] In this embodiment, the pressure-resistant probe cylinders 163 are all installed on a support plate 164. The lower part of one side of the support plate 164 is connected to the frame 1. The support plate 164 can be set using the space above the dividing turntable 4 to ensure that the pressure-resistant probe cylinders 163 surround the entire miniature commutator and leave enough space. The support plate 164 can provide rigid support to ensure that the circumferential distribution error of the 6 pressure-resistant probe cylinders 163 is ≤0.02mm, thereby solving the poor contact caused by the probe position offset in the prior art.

[0022] In this embodiment, if Figure 8 As shown, the upper end of the first lifting cylinder 162 extends outwardly from a rod axially connected to a guide rod 166. The guide rod 166 passes through the top surface of the frame 1 and is detachably connected to the support rod 165. The guide rod 166 guides the lifting and lowering of the support rod 165, ensuring that the support rod 165 can be accurately inserted into the inner hole of the micro commutator. The support rod 165 can be replaced as needed. The guide rod 166 can be made of 45# steel, with a diameter of φ8±0.002mm, and a chrome-plated surface. The clearance between the guide rod 166 and the guide hole in the frame 1 is 0.005-0.01mm. The support rod 165 and the guide rod 166 are connected by threads.

[0023] In this embodiment, if Figure 6As shown, the commutator inner hole through gauge detection assembly 6 and the commutator inner hole upper end size detection assembly 7 both include a first plate seat 60 and a second lifting cylinder 61 installed on the upper end of the first plate seat 60, the second lifting cylinder 61 drives the first lifting seat 62 at the front end of the first plate seat 60 to move up and down, the top of the first lifting seat 62 is installed with a third lifting cylinder 71, the third lifting cylinder 71 drives the first test lifting plate 63 at the front end of the first lifting seat 62 to move up and down, the first test lifting plate 63 is installed with a through gauge connecting seat 64, the through gauge connecting seat The lower end of 64 is connected to a through gauge 65, and the lower side of the front end of the first plate seat 60 is installed with a first horizontal plate 66 extending to the top of the commutator positioning seat 12. The first horizontal plate 66 is embedded with a guide seat 67 for the through gauge 65 to pass through. The through gauge 65 can be quickly moved to a position close to the commutator by moving the first plate seat 60. At the same time, the third lifting cylinder 71 can drive the through gauge 65 to move stably, and after passing through the guide seat 67, it can be accurately inserted into the inner hole of the commutator. The detection value of the resistance encountered by the through gauge 65 is used to judge whether the size of the inner hole meets the requirements.

[0024] In this embodiment, if Figure 6 As shown, a first laser sensor 68 is installed on one side of the first lifting seat 62, and a first sensor reflector 69 matching the first laser sensor 68 is installed on one side of the first test lifting plate 63. The cooperation of the first laser sensor 68 and the first sensor reflector 69 can realize the detection of the lifting position of the first test lifting plate 63. If the first test lifting plate 63 cannot move axially, it means that the inner hole is too small or uneven and unqualified. The first laser sensor 68 model is KEYENCEIL-1000, with a measuring range of 0-50mm and a linear accuracy of ±0.01%FS; the first sensor reflector 69 is made of stainless steel with a thickness of 1mm and is rigidly connected to the first test lifting plate 63. When the inner hole size of the commutator is 0.003mm smaller, the insertion of the go gauge 65 is blocked, and the displacement deviation of the first test lifting plate 63 exceeds 0.005mm. The sensor immediately sends a signal to the control system to trigger the sorting action.

[0025] In this embodiment, if Figure 9As shown, the commutator inner hole lower end size detection assembly 9 includes a second plate seat 99 installed on the upper and lower sides of the frame 1, and the lower end of the second plate seat 99 is installed with a fourth lifting cylinder 92, and the fourth lifting cylinder 92 drives the second lifting seat 96 at the front end of the second plate seat 99 to move up and down, and the lower end of the second lifting seat 96 is installed with a fifth lifting cylinder 93, and the fifth lifting cylinder 93 drives the second test lifting plate 91 at the front end of the second lifting seat 96 to move up and down, and the second test lifting plate 91 is installed with a through gauge Connecting seat 64, the upper end of the through gauge connecting seat 64 is connected to the through gauge 65, and the second plate seat 99 located on the upper side of the frame 1 is equipped with second transverse plates 97 extending above and below the commutator positioning seat 12 respectively. The second transverse plates 97 are embedded with guide seats 67 for the through gauge 65 to pass through. The space at the bottom of the frame 1 is used to set the detection component, so that the lower end of the commutator inner hole can be detected without turning over the commutator, and the through gauge 65 can be well guided by setting two second transverse plates 97 and the guide seat 67.

[0026] In this embodiment, if Figure 9 As shown, a second laser sensor 94 is installed on one side of the second lifting seat 96, and a second sensor reflector 95 matching the second laser sensor 94 is installed on one side of the second test lifting plate 91. Similarly, the cooperation between the second laser sensor 94 and the second sensor reflector 95 can realize the detection of the lifting position of the second test lifting plate 91. If the second test lifting plate 91 cannot move axially, it means that the inner hole is too small or uneven and is unqualified.

[0027] In this embodiment, the first defective product sorting component 5, the second defective product sorting component 11 and the blanking grasping device 15 as shown in the figure all include a rotating cylinder 107 installed on one side of the vibration plate 2 and a pneumatic flexible clamp 105 installed on the rotating cylinder 107. The upper end of the pneumatic flexible clamp 105 is connected to the rotating cylinder 107 by a spring, and a push rod 106 that can pass through the commutator positioning seat 12 to lift the commutator is vertically installed at a position corresponding to the lower end of the frame 1 and the pneumatic flexible clamp 105. The push rod 106 can lift the micro commutator on the commutator positioning seat 12, which is convenient for the pneumatic flexible clamp 105 to grasp. When the micro commutator is lifted, the pneumatic flexible clamp 105 can be pushed up A distance is required to ensure that the pneumatic flexible clamp 105 can firmly and accurately grasp the miniature commutator, and avoid the pneumatic flexible clamp 105 from damaging the miniature commutator due to the incorrect position of the miniature commutator. Specifically, the clamping force of the pneumatic flexible clamp 105 is adjustable, and the adjustment range is 0.5-1N. It is lifted smoothly with the push rod 106, and the grasping damage rate is greatly reduced. The spring allows the pneumatic flexible clamp 105 to float up and down by ±2mm, which compensates for the alignment error between the commutator positioning seat 12 and the pneumatic flexible clamp 105, and the grasping success rate is greatly improved. The rotary cylinder 107 model is SMCMSQB10R, with a rotation angle of 90° / 180°, and the pneumatic flexible clamp 105 model is FESTOHGP-10-A, and the clamping jaw stroke is 50mm.

[0028] In this embodiment, if Figure 7 As shown, the first defective product sorting component 5 and the second defective product sorting component 11 also include a transverse cylinder 103 installed on one side of the rotating cylinder 107, and the transverse cylinder 103 is connected to the defective product placement box 104 through a connecting seat 101. The defective product placement box 104 is divided into at least two placement bins 102 along the movement direction of the transverse cylinder 103, and / or a discharge conveyor 14 is installed on one side of the rotating cylinder 107 of the discharge grabbing device 15. The placement bin 102 can place defective products according to different unreasonable reasons to achieve accurate sorting of different defective products. For example, multiple placement bins 102 are divided according to defect types such as poor pressure resistance / poor upper end of inner hole / poor lower end, to solve the traceability difficulties caused by mixed placement in the prior art. The discharge conveyor 14 is belt-type with a speed of 20 mm / s and a width of 30 mm. Qualified products are transported to the storage box.

[0029] In this embodiment, if Figure 1As shown, the frame 1 is also equipped with multiple gauge pressure displays 8 that are electrically connected to the commutator inner hole gauge detection component 6, the commutator inner hole upper end size detection component 7 and the commutator inner hole lower end size detection component 9. The gauge pressure displays 8 can be uniformly installed on a bracket, and the bracket is installed on the frame 1. The gauge pressure display 8 can display the gauge insertion pressure in real time. The operator can intuitively judge the inner hole status (such as a sudden increase in pressure may be a burr), and the debugging efficiency is improved by 40%. The gauge pressure display 8 is an LCD screen with a range of 0-10N and a resolution of 0.01N. It is wired to the pressure sensor in the gauge connector 64.

[0030] As the overall workflow (taking 8 commutator positioning seats 12 as an example) Step 1: Loading and pressure test (station 1) Vibrating plate 2 arranges miniature commutators (model: M-03, 3mm outer diameter, 1.2mm inner diameter) in an outward-facing position and feeds them through the storage trough of discharge chute 3. When discharge cylinder 17 drives the lower insert plate to the left, its discharge notch aligns with the storage trough, and a commutator falls onto the commutator positioning seat 12 below. At this point, the upper insert plate (30mm long) moves to the right, blocking the workpiece above.

[0031] The first lift cylinder 162 drives the support rod 165 up 250mm, passing through the through-hole of the commutator positioning seat 12 and inserting 2mm into the commutator's inner bore to achieve positioning. Subsequently, six pressure-resistant probe cylinders 163 extend synchronously, driving the pressure-resistant probe 161 radially 15mm, contacting the commutator segments. A voltage of 150V is applied for 2 seconds to test the insulation resistance (≥100MΩ is acceptable). After the test is complete, the probes retract, and the support rod 165 descends 300mm, dropping the commutator into the commutator positioning seat 12.

[0032] Step 2: First defective product sorting (station 2) The indexing turntable 4 rotates 45° counterclockwise, transferring the commutator from station 1 to station 2. If the pressure resistance test fails, the push rod 106 rises 8mm to lift the commutator. The rotary cylinder 107 drives the pneumatic flexible gripper 105 to grab the product. The transverse cylinder 103 drives the defective product placement box 104 to the left, placing the defective product in the "poor pressure resistance" placement bin 102. Qualified products are transferred to the next station along the turntable.

[0033] Step 3: Inner hole gauge inspection (station three) The second lift cylinder 61 lowers the first lift base 62 by 20 mm, bringing the go gauge 65 5 mm above the commutator. The third lift cylinder 71 inserts the go gauge 10 mm into the inner hole at a speed of 10 mm / s, reaching its full depth. The first laser sensor 68 monitors the displacement of the first test lift plate 63 via the first sensor reflector 69. If the displacement is ≥ 9.8 mm (with a tolerance of 0.2 mm), the go gauge passes. Otherwise, it is judged as "blocked / undersized," and the go gauge pressure indicator 8 records the pressure (≥ 5 N is considered a failure).

[0034] Step 4: Inspect the upper end size of the inner hole (station 4) The structure is similar to that of Station 3. The diameter of the 65-gauge is set to 1.203mm (the maximum allowable dimension of the upper end), and the insertion depth is 5mm. Only the upper end is tested. A laser sensor monitors displacement. If the gauge cannot be inserted beyond 4.8mm, the upper end is considered defective.

[0035] Step 5: Inspect the size of the lower end of the inner hole (station five) The fourth lift cylinder 92 drives the second lift base 96 to rise 20 mm. The fifth lift cylinder 93 drives the go-gauge 65 from below at a speed of 8 mm / s to insert 5 mm into the inner hole to detect the lower end. The second laser sensor 94 monitors the displacement, and the judgment logic is the same as the upper end detection.

[0036] Step 6: Second defective product sorting (station six) For products that fail the inner hole inspection, they are classified into "bad through gauge", "bad upper end" and "bad lower end" and stored in storage bin 102. The sorting action parameters are the same as those of station 2.

[0037] Step 7: Cutting (stations seven and eight) Qualified products flow to station seven, where they are grabbed by the pneumatic gripper of the unloading and grabbing device 15. The rotary cylinder 107 rotates 90 degrees and places the product on the unloading conveyor 14, which delivers it to the storage box. Station eight is vacant, waiting for the next cycle.

[0038] In the prior art, the withstand voltage test and inner hole test of the micro commutator need to be completed on at least two devices. The single test cycle of a single device is about 15-20 seconds, and the manual transfer between processes takes about 5-8 seconds per piece, with an overall efficiency of about 3-4 pieces per minute. In this embodiment, multiple processes are carried out simultaneously through the continuous operation of the indexing turntable 4, and the single-piece test cycle is shortened to 8-10 seconds, and the overall efficiency is increased to 6-8 pieces per minute, an efficiency increase of more than 50%. At the same time, the automated loading design of the vibration plate 2 and the feed chute 3 completely replaces manual loading, further reducing auxiliary time.

[0039] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0040] In addition, the terms "first," "second," and so on, used in this disclosure are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being described. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this disclosure, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0041] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0042] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A micro commutator pressure resistance and inner hole comprehensive detection machine, comprising a frame (1), characterized in that: A dividing turntable (4) is centrally mounted on the upper end of the frame (1), and a plurality of commutator positioning seats (12) are axially arranged near the edge of the dividing turntable (4). A vibration disk (2) is mounted on one side of the dividing turntable (4), and a feeding trough (3) extending to the top of one of the commutator positioning seats (12) is connected to one side of the vibration disk (2). A pressure detection component (16) is arranged below the feeding trough (3), and the pressure detection component (16) includes a first lifting cylinder (162) vertically arranged at the lower end of the frame (1) corresponding to the feeding trough (3), and the upper end of the first lifting cylinder (162) is connected to a corresponding commutator. A support rod (165) vertically passes through the positioning seat (12), and pressure-resistant probe cylinders (163) corresponding to the commutator segments on the miniature commutator are evenly installed around the circumference of the support rod (165). A pressure-resistant probe (161) that moves radially toward the miniature commutator is installed on the pressure-resistant probe cylinder (163). The first defective product sorting component (5), the commutator inner hole gauge detection component (6), the commutator inner hole upper end size detection component (7), the commutator inner hole lower end size detection component (9), the second defective product sorting component (11) and the blanking grabbing device (15) are sequentially arranged around the indexing turntable (4) starting from the vibration disk (2) in a counterclockwise direction.

2. The micro commutator pressure resistance and inner hole comprehensive testing machine according to claim 1 is characterized in that: The pressure-resistant probe cylinders (163) are all mounted on a support plate (164), and a lower portion of one side of the support plate (164) is connected to the frame (1).

3. The micro commutator pressure resistance and inner hole comprehensive testing machine according to claim 1 is characterized in that: The upper end extending rod of the first lifting cylinder (162) is axially connected to a guide rod (166), and the guide rod (166) passes through the top surface of the frame (1) and is detachably connected to the supporting top rod (165).

4. The micro commutator pressure resistance and inner hole comprehensive testing machine according to claim 1 is characterized in that: The commutator inner hole gauge detection assembly (6) and the commutator inner hole upper end size detection assembly (7) both include a first plate seat (60) and a second lifting cylinder (61) installed on the upper end of the first plate seat (60), the second lifting cylinder (61) drives the first lifting seat (62) at the front end of the first plate seat (60) to move up and down, the top of the first lifting seat (62) is installed with a third lifting cylinder (71), the third lifting cylinder (71) drives the first test lifting plate (63) at the front end of the first lifting seat (62) to move up and down, the first test lifting plate (63) is installed with a gauge connecting seat (64), the lower end of the gauge connecting seat (64) is connected with a gauge (65), the lower side of the front end of the first plate seat (60) is installed with a first horizontal plate (66) extending to the top of the commutator positioning seat (12), and the first horizontal plate (66) is embedded with a guide seat (67) for the gauge (65) to pass through.

5. The micro commutator pressure resistance and inner hole comprehensive testing machine according to claim 4, characterized in that: A first laser sensor (68) is installed on one side of the first lifting seat (62), and a first sensor reflection plate (69) matching the first laser sensor (68) is installed on one side of the first test lifting plate (63).

6. The micro commutator pressure resistance and inner hole comprehensive testing machine according to claim 1, characterized in that: The commutator inner hole lower end dimension detection assembly (9) includes a second plate seat (99) installed on the upper and lower sides of the frame (1), the lower end of the second plate seat (99) is installed with a fourth lifting cylinder (92), the fourth lifting cylinder (92) drives the second lifting seat (96) at the front end of the second plate seat (99) to move up and down, the lower end of the second lifting seat (96) is installed with a fifth lifting cylinder (93), the fifth lifting cylinder (93) drives the second test lifting plate (91) at the front end of the second lifting seat (96) to move up and down, the second test lifting plate (91) is installed with a through gauge connecting seat (64), the upper end of the through gauge connecting seat (64) is connected with a through gauge (65), the second plate seat (99) located on the upper side of the frame (1) is installed with a second transverse plate (97) extending to the upper and lower sides of the commutator positioning seat (12), respectively, and the second transverse plate (97) is embedded with a guide seat (67) for the through gauge (65) to pass through.

7. The micro commutator pressure resistance and inner hole comprehensive testing machine according to claim 6, characterized in that: A second laser sensor (94) is installed on one side of the second lifting seat (96), and a second sensor reflective plate (95) matching the second laser sensor (94) is installed on one side of the second test lifting plate (91).

8. The micro commutator pressure resistance and inner hole comprehensive testing machine according to claim 1, characterized in that: The first defective product sorting assembly (5), the second defective product sorting assembly (11) and the blanking grasping device (15) all include a rotary cylinder (107) installed on one side of the vibration plate (2) and a pneumatic flexible clamp (105) installed on the rotary cylinder (107), the upper end of the pneumatic flexible clamp (105) is connected to the rotary cylinder (107) via a spring, and a push rod (106) that can pass through the commutator positioning seat (12) to lift the commutator is vertically installed at a position corresponding to the lower end of the frame (1).

9. The micro commutator pressure resistance and inner hole comprehensive testing machine according to claim 8, characterized in that: The first defective product sorting component (5) and the second defective product sorting component (11) further include a transverse cylinder (103) installed on one side of the rotating cylinder (107), the transverse cylinder (103) is connected to the defective product placement box (104) through a connecting seat (101), the defective product placement box (104) is divided into at least two placement bins (102) along the movement direction of the transverse cylinder (103), and / or a material discharge conveyor (14) is installed on one side of the rotating cylinder (107) of the material discharge grabbing device (15).

10. The micro commutator pressure resistance and inner hole comprehensive testing machine according to claim 1, characterized in that: The frame (1) is also provided with a plurality of gauge pressure displays (8) which are electrically connected to the commutator inner hole gauge detection assembly (6), the commutator inner hole upper end dimension detection assembly (7) and the commutator inner hole lower end dimension detection assembly (9) in a one-to-one correspondence.

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