Detection device and method for carrying out slot position detection on vertical slot and horizontal slot of powder metallurgy disc

Abstract

The invention discloses a detection device and method for detecting groove positions of a vertical groove and a horizontal groove of a powder metallurgy disc, and relates to the technical field of detection of the groove positions of the vertical groove and the horizontal groove of the powder metallurgy disc, and the detection device comprises a workbench, and a vertical plate and a frame which are sequentially and fixedly arranged on the workbench from bottom to top, a horizontally-arranged double-acting air cylinder is fixedly arranged in the vertical plate, and two piston rods of the double-acting air cylinder are each provided with a positioning assembly used for positioning the powder metallurgy disc part. The frame is further provided with a pull-down type driving assembly used for driving the first profiling block to move in the direction of the vertical groove and driving the second profiling block to move in the direction of the horizontal groove at the same time. The device has the beneficial effects that the working intensity of workers is greatly reduced, and the slot position detection efficiency of the powder metallurgy disc is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of detecting vertical groove and horizontal groove positions of powder metallurgy disc parts, and particularly relates to a detection device and method for detecting vertical groove and horizontal groove positions of powder metallurgy disc parts. BACKGROUND

[0002] The production process of the powder metallurgy disc part is as follows: first, mixing multiple types of metal powder uniformly by a mixing device, then adding the mixed metal powder into a cavity of a pressing machine, and then pressing the metal powder by the pressing machine to obtain a powder metallurgy disc part with a certain hardness and a required shape in the cavity.

[0003] The structure of a powder metallurgy disc part 1 produced by a workshop is shown in Figures 1-4 The powder metallurgy disc part 1 is rectangular, a through hole 2 is formed in the powder metallurgy disc part 1 along the axial direction thereof, a square sink 3 is formed on the left end face of the powder metallurgy disc part 1 and is in communication with the through hole 2, a vertical groove 4 is formed on the top surface of the powder metallurgy disc part 1, and a horizontal groove 5 is formed on the right end face of the powder metallurgy disc part 1 and is located below the through hole 2, both the horizontal groove 5 and the vertical groove 4 are rectangular.

[0004] Technically, the positions of the vertical groove 4 and the horizontal groove 5 of a batch of powder metallurgy disc parts 1 need to be detected, that is, whether the distance A between the right side wall of the vertical groove 4 and the right end face of the powder metallurgy disc part 1 and the distance B between the bottom wall of the horizontal groove 5 and the bottom surface of the powder metallurgy disc part 1 are within the design range.

[0005] The method for a worker to detect the positions of the vertical groove 4 and the horizontal groove 5 of the powder metallurgy disc part 1 is as follows: S1, the worker takes out a powder metallurgy disc part 1 and places it on the tabletop of a detection table; S2, the worker places the two clamps of a vernier caliper on the right end face of the powder metallurgy disc part 1 and the right side wall of the vertical groove 4 respectively to measure the distance A, as shown in Figure 5 Then, the worker places the two clamps of the vernier caliper on the bottom surface of the powder metallurgy disc part 1 and the bottom wall of the horizontal groove 5 respectively to measure the distance B, as shown in Figure 5 . If both the distance A and the distance B are within the design range, it indicates that the positions of the vertical groove 4 and the horizontal groove 5 of the detected powder metallurgy disc part 1 meet the requirements, and thus the powder metallurgy disc part 1 is determined to be a qualified product. If the measured interval A or interval B is not within the design range, it indicates that the groove position of the vertical groove 4 or horizontal groove 5 of the detected powder metallurgy disc piece 1 does not meet the requirements, and then it is determined that the powder metallurgy disc piece 1 is unqualified, thereby completing the groove position detection of the vertical groove 4 and horizontal groove 5 of a powder metallurgy disc piece 1. S3, the worker repeats the operations of steps S1-S2 multiple times, that is, the groove position detection of the vertical groove 4 and horizontal groove 5 of a batch of powder metallurgy disc pieces 1 is completed.

[0006] However, the method used in the workshop can detect the groove position of a batch of powder metallurgy disc pieces 1, but in actual application, workers often feedback the following technical problems: I, in step S2, the worker needs to use the vernier caliper twice to measure the interval A and interval B of the powder metallurgy disc piece 1, and then complete the groove position detection of a powder metallurgy disc piece 1. The entire operation is completed manually by the worker and is divided into two processes, which not only increases the working strength of the worker, but also increases the detection time, thereby reducing the detection efficiency of the groove position of the vertical groove 4 and horizontal groove 5 of the powder metallurgy disc piece 1.

[0007] II, the workshop requires to detect 200 powder metallurgy disc pieces 1 every day, and the worker can only detect the groove position of the vertical groove 4 and horizontal groove 5 of the powder metallurgy disc piece 1 one by one, which consumes a long time to detect all 200 powder metallurgy disc pieces 1 in a day, which undoubtedly further reduces the detection efficiency of the groove position of the vertical groove 4 and horizontal groove 5 of the powder metallurgy disc piece 1.

[0008] Therefore, a detection device and method for greatly reducing the working strength of workers and greatly improving the groove position detection efficiency of the vertical groove and horizontal groove of the powder metallurgy disc piece are needed. SUMMARY

[0009] The purpose of the present application is to overcome the shortcomings of the prior art and provide a detection device and method for detecting the groove position of the vertical groove and horizontal groove of the powder metallurgy disc piece, which greatly reduces the working strength of the workers and greatly improves the groove position detection efficiency of the powder metallurgy disc piece.

[0010] The purpose of the present application is achieved by the following technical scheme: a detection device for detecting the groove position of the vertical groove and horizontal groove of the powder metallurgy disc piece, which comprises a workbench, a vertical plate and a frame sequentially and fixedly arranged on the workbench from bottom to top, a double-acting cylinder horizontally arranged in the vertical plate, and a positioning assembly for positioning the powder metallurgy disc piece arranged on the two piston rods of the double-acting cylinder. Two detection mechanisms corresponding to the two positioning assemblies are arranged on the frame, the detection mechanism on the left side comprises a vertical detection assembly for detecting the vertical slot of the powder metallurgy disc and a horizontal detection assembly for detecting the horizontal slot of the powder metallurgy disc. The vertical detection assembly comprises a suspension fixed on the top surface of the frame, a first movable rod sliding through the top wall of the suspension, a fixed plate connected to the top end of the first movable rod, a vertical spring sleeved outside the first movable rod, the upper and lower ends of the vertical spring being fixed on the fixed plate and the top wall of the suspension respectively, a first nylon pad block, a first pressure sensor and a first profiling block being sequentially fixed on the bottom end of the first movable rod, and the outer contour of the first profiling block being matched with the vertical slot. The horizontal detection assembly comprises a second movable rod sliding through the left side wall of the frame, a roller rotatably installed on the right end of the second movable rod, a second nylon pad block, a second pressure sensor and a second profiling block being sequentially fixed on the left end of the second movable rod, the outer contour of the second profiling block being matched with the horizontal slot, a horizontal spring sleeved outside the second movable rod, and the left and right ends of the horizontal spring being fixed on the second nylon pad block and the outer side wall of the frame respectively. A downward driving assembly is further arranged on the frame for driving the first profiling block to move towards the vertical slot and simultaneously driving the second profiling block to move towards the horizontal slot.

[0011] A plurality of supporting legs are fixed on the bottom surface of the workbench and supported on the ground.

[0012] The positioning assembly on the left side comprises a connecting plate fixed on the left piston rod of the double-acting cylinder, and a positioning block fixed on the inner end face of the connecting plate, the outer contour of the positioning block being matched with the square sink of the powder metallurgy disc.

[0013] The two positioning assemblies are left-right symmetrical about the double-acting cylinder.

[0014] The detection mechanism on the left side of the frame is left-right symmetrical about the detection mechanism on the right side of the frame.

[0015] The downward driving assembly comprises a downward cylinder fixed on the top surface of the frame and a floating plate fixed on the top end of the piston rod of the downward cylinder, the left and right ends of the floating plate being in contact with the top surfaces of the fixed plates of the two vertical detection assemblies respectively. Two supporting plates are fixed on the bottom surface of the floating plate and downwardly penetrating the top edge of the frame, the bottom end of the left supporting plate being hingedly connected with a connecting rod through a first pin shaft, the other end of the connecting rod being hingedly connected with a rotating plate through a second pin shaft, the upper end of the rotating plate being hingedly connected to the left edge of the frame through a hinge seat, and the rotating plate being in contact with the roller.

[0016] The two supporting plates are left-right symmetrical about the downward cylinder.

[0017] The detection device further comprises a controller, which is electrically connected with the double-acting cylinder, the pull-down cylinder, the first pressure sensor and the second pressure sensor through signal lines.

[0018] A method for detecting vertical slots and horizontal slots of powder metallurgy disc pieces, comprising the following steps: S1, positioning two powder metallurgy disc pieces, the specific operation steps are: S11, the worker takes out two powder metallurgy disc pieces to be detected; S12, the worker positions the square sink of one powder metallurgy disc piece on the positioning block of the left positioning assembly from right to left, because the outer contour of the positioning block matches the square sink of the powder metallurgy disc piece, thereby realizing positioning of the powder metallurgy disc piece based on the square sink of the powder metallurgy disc piece; S13, the worker repeats the operation of step S12 once to position the second powder metallurgy disc piece on the positioning block of the right positioning assembly; S2, control the two piston rods of the double-acting cylinder to retract inward, the two piston rods drive the connecting plates connected thereto to move inward, the connecting plates drive the positioning blocks to move inward synchronously, and the positioning blocks drive the powder metallurgy disc pieces to move inward; When the two piston rods of the double-acting cylinder are completely retracted, the left powder metallurgy disc piece enters the detection station of the left detection mechanism, at this time, the vertical slot of the left powder metallurgy disc piece is opposite to the first profiling block of the vertical detection assembly up and down, and the horizontal slot of the powder metallurgy disc piece is opposite to the second profiling block of the horizontal detection assembly left and right; At the same time, the right powder metallurgy disc piece enters the detection station of the right detection mechanism, at this time, the vertical slot of the right powder metallurgy disc piece is opposite to the first profiling block of the vertical detection assembly up and down, and the horizontal slot of the powder metallurgy disc piece is opposite to the second profiling block of the horizontal detection assembly left and right; S3, control the piston rod of the pull-down cylinder of the pull-down driving assembly to retract downward, the piston rod drives the floating plate to move downward, the floating plate presses the two fixed plates of the vertical detection assemblies downward, the fixed plates compress the vertical springs downward, and the fixed plates also drive the first movable rod to move downward, the first movable rod drives the first pressure sensor and the first profiling block to move toward the vertical slot of the powder metallurgy disc piece; At the same time, the floating plate also drives the support plate to move downward, the support plate drives the connecting rod to move downward, the connecting rod drives the rotating plate to rotate downward around the hinge seat, the rotating plate gradually pushes the roller outward, the roller drives the second movable rod to move outward, the second movable rod drives the second pressure sensor and the second profiling block to move toward the horizontal slot of the powder metallurgy disc piece, and at the same time, the second pressure sensor also gradually stretches the horizontal spring outward; When the piston rod of the pull-down cylinder of the pull-down driving assembly is fully retracted, if the first pressure sensor and the second pressure sensor corresponding to the powder metallurgy disc part do not send pressure signals to the controller, it indicates that the first profiling block and the second profiling block enter the vertical groove and the horizontal groove of the powder metallurgy disc part respectively, and further indicates that the groove positions of the vertical groove and the horizontal groove of the detected powder metallurgy disc part meet the requirements, and the worker determines that the detected powder metallurgy disc part is a qualified product; If the first pressure sensor corresponding to the powder metallurgy disc part sends a pressure signal to the controller, it indicates that the first profiling block does not enter the vertical groove but presses on the top surface of the powder metallurgy disc part, and the first pressure sensor sends a pressure signal to the controller again after being subjected to the reaction force from the first profiling block, and further indicates that the groove position of the vertical groove of the detected powder metallurgy disc part does not meet the requirements, and the worker determines that the detected powder metallurgy disc part is an unqualified product; If the second pressure sensor corresponding to the powder metallurgy disc part sends a pressure signal to the controller, it indicates that the second profiling block does not enter the horizontal groove but presses on the end surface of the powder metallurgy disc part, and the second pressure sensor sends a pressure signal to the controller again after being subjected to the reaction force from the second profiling block, and further indicates that the groove position of the horizontal groove of the detected powder metallurgy disc part does not meet the requirements, and the worker determines that the detected powder metallurgy disc part is an unqualified product, thereby finally completing the detection of the groove positions of the vertical groove and the horizontal groove of the two powder metallurgy disc parts; S4, taking away of the qualified product or the unqualified product, and the specific operation steps are as follows: S41, controlling the piston rod of the pull-down cylinder of the pull-down driving assembly to extend upward, the piston rod drives the floating plate to move upward, the floating plate drives the support plate to move upward, and the support plate drives the rotating plate to rotate upward around the hinge seat; when the floating plate moves upward, the first movable rod, the first pressure sensor and the first profiling block are reset under the elastic restoring force of the vertical spring, and at the same time, the second movable rod, the second pressure sensor and the second profiling block are reset under the elastic restoring force of the horizontal spring; S42, controlling the two piston rods of the double-acting cylinder to extend outward, the two piston rods drive the connecting plate connected thereto to move outward synchronously, the connecting plate drives the positioning block to move outward synchronously, and the positioning block drives the qualified product or the unqualified product to move outward; when the positioning block is reset, the worker takes away the qualified product or the unqualified product from the positioning block; S5, the worker repeats the operation of steps S1-S4 multiple times, thereby completing the groove position detection of the vertical groove and the horizontal groove of a batch of powder metallurgy disc parts.

[0019] The present application has the following advantages: greatly reducing the working intensity of workers and greatly improving the detection efficiency of the groove positions of the powder metallurgy disc parts. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 An isometric drawing of a powder metallurgy disc produced in a certain workshop; Figure 2 for Figure 1 M-direction schematic diagram; Figure 3 for Figure 1 The left view; Figure 4 for Figure 1 Main section diagram; Figure 5 A schematic diagram for measuring the spacing A and spacing B of powder metallurgy discs; Figure 6 This is a schematic diagram of the structure of the present invention; Figure 7 for Figure 6 Main section diagram; Figure 8 for Figure 6 A schematic diagram showing the connection of the double-acting cylinder, connecting plate, and positioning block in the diagram. Figure 9 for Figure 8 The main view; Figure 10 This is a schematic diagram of the vertical detection component of the detection mechanism on the left. Figure 11 for Figure 10 Main section diagram Figure 12 This is a schematic diagram of the horizontal detection component of the detection mechanism on the left. Figure 13 for Figure 12 Main section diagram; Figure 14 This is a schematic diagram of the structure of the pull-down drive component; Figure 15 for Figure 14 Axonometric view of the support plate in the middle; Figure 16 for Figure 15 The main view; Figure 17 A schematic diagram illustrating the positioning of a powder metallurgy disc based on its square sink. Figure 18 This is a schematic diagram of positioning the second powder metallurgy disk on the positioning block of the right-side positioning assembly. Figure 19 This is a schematic diagram showing the powder metallurgy disc on the left entering the inspection station of the inspection mechanism on the left. Figure 20 This is a schematic diagram showing the first contour block moving towards the vertical groove of the powder metallurgy disk. Figure 21This is a schematic diagram showing the first and second contour blocks entering the vertical and horizontal grooves of the powder metallurgy disc, respectively. Figure 22 This is a schematic diagram showing that the first contour block did not enter the vertical groove but was pressed onto the top surface of the powder metallurgy disk. Figure 23 This is a schematic diagram showing that the second contour block did not enter the horizontal groove but was pressed against the end face of the powder metallurgy disk. Figure 24 A diagram illustrating how workers remove qualified or unqualified products from the positioning block; In the picture: 1-Powder metallurgy disc, 2-Through hole, 3-Square countersink, 4-Vertical groove, 5-Horizontal groove; 6-Workbench, 7-Upright plate, 8-Frame, 9-Double-acting cylinder, 10-Positioning assembly, 11-Vertical detection assembly, 12-Horizontal detection assembly; 13-Suspension, 14-First movable rod, 15-Fixed plate, 16-Vertical spring, 17-First nylon pad, 18-First pressure sensor, 19-First contour block; 20-Second movable rod, 21-Roller, 22-Second nylon pad, 23-Second pressure sensor, 24-Second contour block, 25-Horizontal spring; 26-Connecting plate, 27-Positioning block; 28-Pull-down cylinder, 29-Floating plate, 30-Support plate, 31-Connecting rod, 32-Second pin, 33-Rotating plate, 34-Hinge seat. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings. The scope of protection of the present invention is not limited to the following description: like Figures 6-16 As shown, a detection device for detecting the vertical and horizontal grooves of powder metallurgy discs includes a worktable 6, a vertical plate 7 and a frame 8 fixedly mounted on the worktable 6 from bottom to top, and multiple support legs fixed to the ground on the bottom surface of the worktable 6. A horizontally arranged double-acting cylinder 9 is fixed inside the vertical plate 7. Each of the two piston rods of the double-acting cylinder 9 is equipped with a positioning component 10 for positioning the powder metallurgy disc 1. The two positioning components 10 are symmetrical about the double-acting cylinder 9. The positioning component 10 on the left side includes a connecting plate 26 fixed to the left piston rod of the double-acting cylinder 9. A positioning block 27 is fixed on the inner end face of the connecting plate 26. The outer contour of the positioning block 27 matches the square groove 3 of the powder metallurgy disc 1.

[0022] The frame 8 is provided with two detection mechanisms corresponding to the two positioning assemblies 10 respectively, the detection mechanism on the left side of the frame 8 is symmetrical to the detection mechanism on the right side of the frame 8 about the frame 8, and the detection mechanism on the left side comprises a vertical detection assembly 11 for detecting the vertical slot 4 of the powder metallurgy disc piece 1 and a horizontal detection assembly 12 for detecting the horizontal slot 5 of the powder metallurgy disc piece 1.

[0023] The vertical detection assembly 11 comprises a suspension 13 fixed on the top surface of the frame 8, a first movable rod 14 slidingly penetrating the top wall of the suspension 13, a fixed plate 15 connected to the top end of the first movable rod 14, a vertical spring 16 externally sleeved on the first movable rod 14, the upper and lower ends of the vertical spring 16 being fixed on the fixed plate 15 and the top wall of the suspension 13 respectively, a first nylon pad 17, a first pressure sensor 18 and a first profiling block 19 being sequentially fixed on the bottom end of the first movable rod 14, and the outer contour of the first profiling block 19 being matched with the vertical slot 4; the first nylon pad 17 has elastic recovery capability, that is, the first nylon pad 17 can naturally recover to the original state after being pressed and deformed.

[0024] The horizontal detection assembly 12 comprises a second movable rod 20 slidingly penetrating the left side wall of the frame 8, a roller 21 rotatably installed on the right end of the second movable rod 20, a second nylon pad 22, a second pressure sensor 23 and a second profiling block 24 sequentially fixed on the left end of the second movable rod 20, the outer contour of the second profiling block 24 being matched with the horizontal slot 5, a horizontal spring 25 externally sleeved on the second movable rod 20, and the left and right ends of the horizontal spring 25 being fixed on the second nylon pad 22 and the outer side wall of the frame 8 respectively; the second nylon pad 22 has elastic recovery capability, that is, the second nylon pad 22 can naturally recover to the original state after being pressed and deformed.

[0025] The frame 8 is further provided with a downward driving assembly for driving the first profiling block 19 to move towards the vertical slot 4 and simultaneously driving the second profiling block 24 to move towards the horizontal slot 5. The downward driving assembly comprises a downward air cylinder 28 fixed on the top surface of the frame 8 and a floating plate 29 fixed on the top end of the piston rod of the downward air cylinder 28, the left and right ends of the floating plate 29 being in contact with the top surfaces of the fixed plates 15 of the two vertical detection assemblies 11 respectively; two support plates 30 downward penetrating the top edge of the frame 8 are fixed on the bottom surface of the floating plate 29, and the two support plates 30 are symmetrical about the downward air cylinder 28.

[0026] The bottom end of the left support plate 30 is hingedly connected with a connecting rod 31 through a first pin shaft, the other end of the connecting rod 31 is hingedly connected with a rotating plate 33 through a second pin shaft 32, the upper end of the rotating plate 33 is hingedly connected to the left edge of the frame 8 through a hinge seat 34, and the rotating plate 33 is in contact with the roller 21.

[0027] The detection device also includes a controller, which is electrically connected to the double-acting cylinder 9, the pull-down cylinder 28, the first pressure sensor 18, and the second pressure sensor 23 via signal lines. The operator can control the extension or retraction of the piston rods of the double-acting cylinder 9 and the pull-down cylinder 28 through the controller, and at the same time, can receive pressure signals sent back from the first pressure sensor 18 and the second pressure sensor 23.

[0028] A method for detecting the position of vertical and horizontal grooves in powder metallurgy discs, comprising the following steps: S1, for two such Figures 1-4 The specific steps for positioning the powder metallurgy disk 1 shown are as follows: S11. The worker takes out two powder metallurgy discs to be tested. S12. A square recess 3 of a powder metallurgy disc 1 is fitted onto the positioning block 27 of the positioning assembly 10 on the left side from right to left. Since the outer contour of the positioning block 27 matches the square recess 3 of the powder metallurgy disc 1, positioning is achieved using the square recess 3 of the powder metallurgy disc 1 as a reference. Figure 17 As shown; S13. The worker repeats step S12 once to position the second powder metallurgy disc 1 on the positioning block 27 of the positioning assembly 10 on the right side, as follows. Figure 18 As shown; S2. Control the two piston rods of the double-acting cylinder 9 to retract inward. The two piston rods drive the connecting plate 26 connected to them to move inward. The connecting plate 26 drives the positioning block 27 to move inward synchronously. The positioning block 27 drives the powder metallurgy disc 1 to move inward. After the two piston rods of the double-acting cylinder 9 are fully retracted, the powder metallurgy disc 1 on the left enters the inspection station of the left inspection mechanism, such as... Figure 19 As shown, at this time, the vertical groove 4 of the powder metallurgy disc 1 on the left is vertically opposed to the first contour block 19 of the vertical detection component 11, and the horizontal groove 5 of the powder metallurgy disc 1 is horizontally opposed to the second contour block 24 of the horizontal detection component 12. At the same time, the powder metallurgy disc 1 on the right enters the detection station of the right detection mechanism. At this time, the vertical groove 4 of the powder metallurgy disc 1 on the right is vertically opposed to the first contour block 19 of the vertical detection component 11, and the horizontal groove 5 of the powder metallurgy disc 1 is horizontally opposed to the second contour block 24 of the horizontal detection component 12. S3. The piston rod of the pull-down cylinder 28 of the control pull-down drive assembly retracts downward, causing the piston rod to drive the floating plate 29 to move downward. The floating plate 29 presses down on the fixing plates 15 of the two vertical detection components 11, and the fixing plates 15 compress the vertical spring 16 downward. The fixing plates 15 also drive the first movable rod 14 to move downward. The first movable rod 14 drives the first pressure sensor 18 and the first contour block 19 to move towards the vertical groove 4 of the powder metallurgy disc 1. The movement direction of the first contour block 19 is as follows: Figure 20 As indicated by the solid arrow in the center; Simultaneously, the floating plate 29 also drives the support plate 30 to move downwards, the support plate 30 drives the connecting rod 31 to move downwards, the connecting rod 31 drives the rotating plate 33 to rotate downwards around the hinge seat 34, the rotating plate 33 gradually pushes the roller 21 outwards, the roller 21 drives the second movable rod 20 to move outwards, the second movable rod 20 drives the second pressure sensor 23 and the second contour block 24 to move towards the horizontal groove 5 of the powder metallurgy disc 1, the direction of movement of the second contour block 24 is as follows Figure 20 As indicated by the hollow arrow, the second pressure sensor 23 also gradually stretches the horizontal spring 25 outwards. If, after the piston rod of the pull-down cylinder 28 of the pull-down drive assembly is fully retracted, neither the first pressure sensor 18 nor the second pressure sensor 23 corresponding to the powder metallurgy disc 1 sends a pressure signal to the controller, it indicates that the first contour block 19 and the second contour block 24 have entered the vertical groove 4 and the horizontal groove 5 of the powder metallurgy disc 1, respectively. Figure 21 As shown, this further demonstrates that the vertical groove 4 and horizontal groove 5 of the tested powder metallurgy disc 1 meet the requirements, and the worker judges the tested powder metallurgy disc 1 to be a qualified product. If the first pressure sensor 18 corresponding to the powder metallurgy disc 1 sends a pressure signal to the controller, it indicates that the first contour block 19 has not entered the vertical groove 4 but has been pressed against the top surface of the powder metallurgy disc 1. Figure 22 As shown, the first pressure sensor 18 receives a reaction force from the first contour block 19 and then sends a pressure signal to the controller, which indicates that the vertical groove 4 of the powder metallurgy disc 1 being tested does not meet the requirements, and the worker judges the powder metallurgy disc 1 being tested to be a defective product. If the second pressure sensor 23 corresponding to the powder metallurgy disc 1 sends a pressure signal to the controller, it indicates that the second contour block 24 has not entered the horizontal groove 5 but has instead pressed against the end face of the powder metallurgy disc 1. Figure 23As shown, the second pressure sensor 23 receives a reaction force from the second contour block 24 and then sends a pressure signal to the controller, which indicates that the horizontal groove 5 of the powder metallurgy disc 1 being tested does not meet the requirements. The worker judges the powder metallurgy disc 1 being tested to be a defective product, thus finally completing the testing of the vertical groove 4 and horizontal groove 5 of the two powder metallurgy discs 1. As can be seen from steps S1 to S3, the worker only needs to first position the powder metallurgy disc 1 on the positioning block 27, and then control the two piston rods of the double-acting cylinder 9 to move inward so that the powder metallurgy disc 1 enters the detection station of the vertical detection component 11 and the horizontal detection component 12; finally, control the piston rod of the pull-down cylinder 28 to retract downward so that the groove positions of the vertical groove 4 and the horizontal groove 5 of the two powder metallurgy discs 1 can be detected.

[0029] Therefore, it can be seen that during the entire inspection process, workers do not need to use vernier calipers twice to measure the spacing A and spacing B of the powder metallurgy disc 1 to complete the inspection of the vertical groove 4 and horizontal groove 5 of a powder metallurgy disc 1. Instead, this inspection device can automatically and quickly inspect the vertical groove 4 and horizontal groove 5 of the powder metallurgy disc 1 by means of the linkage of the positioning block 27, the double-acting cylinder 9 and the pull-down cylinder 28. This not only greatly reduces the workload of workers, but also shortens the inspection time, thereby greatly improving the inspection efficiency of the vertical groove 4 and horizontal groove 5 of the powder metallurgy disc 1.

[0030] S4. The specific operating procedures for removing qualified or unqualified products are as follows: S41, the piston rod of the pull-down cylinder 28 of the control pull-down drive assembly extends upward, the piston rod drives the floating plate 29 to move upward, the floating plate 29 drives the support plate 30 to move upward, and the support plate 30 drives the rotating plate 33 to rotate upward around the hinge seat 34; when the floating plate 29 moves upward, under the elastic restoring force of the vertical spring 16, the first movable rod 14, the first pressure sensor 18 and the first contour block 19 are reset, and at the same time, under the elastic restoring force of the horizontal spring 25, the second movable rod 20, the second pressure sensor 23 and the second contour block 24 are reset. S42. The two piston rods of the double-acting cylinder 9 extend outwards, causing the connecting plate 26 connected to it to move outwards synchronously. The connecting plate 26 then causes the positioning block 27 to move outwards synchronously, and the positioning block 27 moves the qualified or unqualified product outwards. After the positioning block 27 resets, the worker removes the qualified or unqualified product from the positioning block 27 in the following direction: Figure 24 As indicated by the solid arrow in the center; S5. By repeating steps S1 to S4 multiple times, the worker can complete the groove position detection of the vertical groove 4 and horizontal groove 5 of a batch of powder metallurgy discs 1.

[0031] Furthermore, as can be seen from step S3, the worker only needs to control the piston rod of the pull-down cylinder 28 of the pull-down drive assembly to retract downwards, so that the first contour blocks 19 of the two vertical detection components 11 can move towards the vertical grooves 4 of the two powder metallurgy discs 1 respectively. At the same time, the second contour blocks 24 of the two horizontal detection components 12 can move towards the horizontal grooves 5 of the two powder metallurgy discs 1 respectively. Thus, the detection of the vertical grooves 4 and horizontal grooves 5 of the two powder metallurgy discs 1 can be completed in one go. The number of powder metallurgy discs 1 to be detected is twice that of the original detection method. That is, the worker does not need to detect the vertical grooves 4 and horizontal grooves 5 of the powder metallurgy discs 1 one by one. Thus, it is possible to complete the detection of all 200 powder metallurgy discs 1 in the workshop in a short time, thereby further improving the detection efficiency of the vertical grooves 4 and horizontal grooves 5 of the powder metallurgy discs 1.

Claims

1. A detection device for detecting the groove position of vertical and horizontal grooves in powder metallurgy discs, characterized in that: It includes a workbench (6), a vertical plate (7) and a frame (8) fixed on the workbench (6) from bottom to top. A horizontally arranged double-acting cylinder (9) is fixed inside the vertical plate (7). The two piston rods of the double-acting cylinder (9) are each equipped with a positioning component (10) for positioning the powder metallurgy disc (1). The frame (8) is provided with two detection mechanisms corresponding to the two positioning components (10). The detection mechanism on the left side includes a vertical detection component (11) for detecting the groove position of the vertical groove (4) of the powder metallurgy disc (1) and a horizontal detection component (12) for detecting the groove position of the horizontal groove (5) of the powder metallurgy disc (1). The vertical detection assembly (11) includes a suspension (13) fixed on the top surface of the frame (8) and a first movable rod (14) that slides through the top wall of the suspension (13). The top end of the first movable rod (14) is connected to a fixed plate (15). A vertical spring (16) is sleeved on the outside of the first movable rod (14). The upper and lower ends of the vertical spring (16) are fixed on the fixed plate (15) and the top wall of the suspension (13) respectively. The bottom end of the first movable rod (14) is sequentially fixed with a first nylon pad (17), a first pressure sensor (18) and a first contour block (19). The outer contour of the first contour block (19) matches the vertical groove (4). The horizontal detection component (12) includes a second movable rod (20) that slides through the left side wall of the frame (8). A roller (21) is rotatably mounted on the right end of the second movable rod (20). A second nylon pad (22), a second pressure sensor (23), and a second contour block (24) are sequentially fixed to the left end of the second movable rod (20). The outer contour of the second contour block (24) matches the horizontal groove (5). A horizontal spring (25) is sleeved on the outside of the second movable rod (20). The left and right ends of the horizontal spring (25) are fixed to the second nylon pad (22) and the outer side wall of the frame (8), respectively. The frame (8) is also provided with a pull-down drive assembly for driving the first contour block (19) to move toward the vertical groove (4) and simultaneously driving the second contour block (24) to move toward the horizontal groove (5).

2. The detection device for detecting the groove position of vertical and horizontal grooves in powder metallurgy discs according to claim 1, characterized in that: Multiple support legs that are supported on the ground are fixed on the bottom surface of the workbench (6).

3. The detection device for detecting the groove position of vertical and horizontal grooves in powder metallurgy discs according to claim 2, characterized in that: The positioning component (10) located on the left side includes a connecting plate (26) fixed on the piston rod on the left side of the double-acting cylinder (9). A positioning block (27) is fixed on the inner end face of the connecting plate (26). The outer contour of the positioning block (27) matches the square sink (3) of the powder metallurgy disc (1).

4. The detection device for detecting the groove position of vertical and horizontal grooves in powder metallurgy discs according to claim 3, characterized in that: The two positioning components (10) are symmetrical about the double-acting cylinder (9).

5. The detection device for detecting the groove position of vertical and horizontal grooves in powder metallurgy discs according to claim 4, characterized in that: The detection mechanism on the left side of the frame (8) and the detection mechanism on the right side of the frame (8) are symmetrical about the frame (8).

6. The detection device for detecting the groove position of vertical and horizontal grooves in powder metallurgy discs according to claim 5, characterized in that: The pull-down drive assembly includes a pull-down cylinder (28) fixed on the top surface of the frame (8) and a floating plate (29) fixed on the top of the piston rod of the pull-down cylinder (28). The left and right ends of the floating plate (29) are in contact with the top surfaces of the fixing plates (15) of the two vertical detection assemblies (11), respectively. Two support plates (30) are fixed on the bottom surface of the floating plate (29) and extend downward through the top edge of the frame (8). The bottom end of the left support plate (30) is hinged to a connecting rod (31) via a first pin. The other end of the connecting rod (31) is hinged to a rotating plate (33) via a second pin (32). The upper end of the rotating plate (33) is hinged to the left side of the frame (8) via a hinge seat (34), and the rotating plate (33) is in contact with the roller (21).

7. The detection device for detecting the groove position of vertical and horizontal grooves in powder metallurgy discs according to claim 6, characterized in that: The two support plates (30) are symmetrical about the pull-down cylinder (28).

8. The detection device for detecting the groove position of vertical and horizontal grooves in powder metallurgy discs according to claim 7, characterized in that: The detection device also includes a controller, which is electrically connected to the double-acting cylinder (9), the pull-down cylinder (28), the first pressure sensor (18), and the second pressure sensor (23) via signal lines.

9. A method for detecting the position of vertical and horizontal grooves in powder metallurgy discs, employing the detection device for detecting the position of vertical and horizontal grooves in powder metallurgy discs as described in claim 8, characterized in that: It includes the following steps: S1. Position the two powder metallurgy discs (1). The specific operation steps are as follows: S11. The worker takes out two powder metallurgy discs to be tested (1). S12. Place the square sink (3) of a powder metallurgy disc (1) onto the positioning block (27) of the positioning component (10) on the left side from right to left. Since the outer contour of the positioning block (27) matches the square sink (3) of the powder metallurgy disc (1), positioning is achieved based on the square sink (3) of the powder metallurgy disc (1). S13. The worker repeats step S12 once to position the second powder metallurgy disc (1) on the positioning block (27) of the positioning assembly (10) on the right. S2. Control the two piston rods of the double-acting cylinder (9) to retract inward. The two piston rods drive the connecting plate (26) connected to them to move inward. The connecting plate (26) drives the positioning block (27) to move inward synchronously. The positioning block (27) drives the powder metallurgy disc (1) to move inward. When the two piston rods of the double-acting cylinder (9) are fully retracted, the powder metallurgy disc (1) on the left enters the detection station of the left detection mechanism. At this time, the vertical groove (4) of the powder metallurgy disc (1) on the left is vertically opposed to the first contour block (19) of the vertical detection component (11), and the horizontal groove (5) of the powder metallurgy disc (1) is horizontally opposed to the second contour block (24) of the horizontal detection component (12). At the same time, the powder metallurgy disc (1) on the right enters the detection station of the right detection mechanism. At this time, the vertical groove (4) of the powder metallurgy disc (1) on the right is vertically opposed to the first contour block (19) of the vertical detection component (11), and the horizontal groove (5) of the powder metallurgy disc (1) is horizontally opposed to the second contour block (24) of the horizontal detection component (12). S3. The piston rod of the pull-down cylinder (28) of the control pull-down drive assembly retracts downward, and the piston rod drives the floating plate (29) to move downward. The floating plate (29) presses down on the fixing plate (15) of the two vertical detection components (11). The fixing plate (15) compresses the vertical spring (16) downward. The fixing plate (15) also drives the first movable rod (14) to move downward. The first movable rod (14) drives the first pressure sensor (18) and the first contour block (19) to move toward the vertical groove (4) of the powder metallurgy disc (1). At the same time, the floating plate (29) also drives the support plate (30) to move downward, the support plate (30) drives the connecting rod (31) to move downward, the connecting rod (31) drives the rotating plate (33) to rotate downward around the hinge seat (34), the rotating plate (33) gradually pushes the roller (21) outward, the roller (21) drives the second movable rod (20) to move outward, the second movable rod (20) drives the second pressure sensor (23) and the second contour block (24) to move towards the horizontal groove (5) of the powder metallurgy disc (1), at the same time, the second pressure sensor (23) also gradually stretches the horizontal spring (25) outward; When the piston rod of the pull-down cylinder (28) of the pull-down drive assembly is fully retracted, if neither the first pressure sensor (18) nor the second pressure sensor (23) corresponding to the powder metallurgy disc (1) sends a pressure signal to the controller, it indicates that the first contour block (19) and the second contour block (24) have entered the vertical groove (4) and horizontal groove (5) of the powder metallurgy disc (1) respectively, which further indicates that the groove positions of the vertical groove (4) and horizontal groove (5) of the tested powder metallurgy disc (1) meet the requirements, and the worker judges the tested powder metallurgy disc (1) to be a qualified product; If the first pressure sensor (18) corresponding to the powder metallurgy disc (1) sends a pressure signal to the controller, it indicates that the first contour block (19) did not enter the vertical groove (4) but was pressed onto the top surface of the powder metallurgy disc (1). After the first pressure sensor (18) receives the reaction force from the first contour block (19), it sends a pressure signal to the controller, which indicates that the groove position of the vertical groove (4) of the tested powder metallurgy disc (1) does not meet the requirements. The worker judges the tested powder metallurgy disc (1) to be a defective product. If the second pressure sensor (23) corresponding to the powder metallurgy disc (1) sends a pressure signal to the controller, it indicates that the second contour block (24) did not enter the horizontal groove (5) but pressed onto the end face of the powder metallurgy disc (1). After the second pressure sensor (23) receives the reaction force from the second contour block (24), it sends a pressure signal to the controller, which indicates that the groove position of the horizontal groove (5) of the powder metallurgy disc (1) being tested does not meet the requirements. The worker judges the powder metallurgy disc (1) being tested to be a defective product, thus finally completing the testing of the vertical groove (4) and horizontal groove (5) positions of the two powder metallurgy discs (1). S4. The specific operating procedures for removing qualified or unqualified products are as follows: S41. The piston rod of the pull-down cylinder (28) of the control pull-down drive assembly extends upward, and the piston rod drives the floating plate (29) to move upward. The floating plate (29) drives the support plate (30) to move upward, and the support plate (30) drives the rotating plate (33) to rotate upward around the hinge seat (34). When the floating plate (29) moves upward, under the elastic restoring force of the vertical spring (16), the first movable rod (14), the first pressure sensor (18) and the first contour block (19) are reset. At the same time, under the elastic restoring force of the horizontal spring (25), the second movable rod (20), the second pressure sensor (23) and the second contour block (24) are reset. S42. The two piston rods of the double-acting cylinder (9) extend outwards, and the two piston rods drive the connecting plate (26) connected to them to move outwards synchronously. The connecting plate (26) drives the positioning block (27) to move outwards synchronously. The positioning block (27) drives the qualified or unqualified product to move outwards. After the positioning block (27) is reset, the worker takes the qualified or unqualified product off the positioning block (27). S5. Workers can repeat steps S1 to S4 multiple times to complete the groove position detection of the vertical groove (4) and horizontal groove (5) of a batch of powder metallurgy discs (1).

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