Automatic detection equipment for circular runout

Abstract

The present invention discloses an automatic circular runout detection device, which is characterized in that it includes: a feeding assembly, which uses the feeding assembly to deliver the workpiece to a specified position; a transfer assembly, which grabs the workpiece in the feeding assembly and moves it into the detection assembly; a detection assembly, which uses the detection assembly to perform circular runout detection on the processing features of the workpiece; a dividing assembly, which uses the transfer assembly to move the workpiece that has been tested to the dividing assembly, and uses the dividing assembly to classify qualified and unqualified workpieces; the present invention realizes the automatic detection of the circular runout of valve needle-type workpieces, improves the detection efficiency, saves manpower, and greatly reduces the detection cost. The drive assembly cleverly uses the toughness and high friction coefficient of the synchronous belt to stably drive the workpiece to rotate; and can adapt to the detection of workpieces of different sizes, with higher adaptability. The drive assembly is additionally provided with a pressure wheel to facilitate the installation of the synchronous belt, and the tightness of the synchronous belt in the initial state can be adjusted.

Description

Technical Field

[0001] The present invention relates to the field of detection tooling, and in particular to an automatic circular runout detection device. Background Art

[0002] When machining automotive valve needles, the product structure necessitates feature machining on the sidewalls through methods such as turning. After machining, these features require circular runout testing, but there is no commercially available tooling for this purpose. Due to the high precision of valve needle machining, spot checks are not feasible, requiring a complete inspection of the entire workpiece. Therefore, there is an urgent need for automated circular runout testing equipment to improve inspection efficiency. Summary of the Invention

[0003] In view of the above defects in the prior art, the main purpose of the present invention is to overcome the shortcomings of the prior art and disclose an automatic detection device for circular runout, which is characterized by comprising:

[0004] A feeding assembly, utilizing the feeding assembly to deliver the workpiece to a designated position;

[0005] A transfer assembly, which grabs the workpiece in the feeding assembly and moves it into the detection assembly;

[0006] The detection component is used to perform circular runout detection on the machining features of the workpiece;

[0007] A material separation component is used to move the inspected workpieces to the material separation component, and the material separation component is used to classify qualified and unqualified workpieces;

[0008] The detection component includes a first cylinder, a drive component, a positioning component and a displacement sensor. The displacement sensor is arranged on the positioning component, and the drive component is arranged on the first cylinder. The first cylinder is used to drive the drive component to move back and forth, and the drive component is used to drive the workpiece in the positioning component to rotate.

[0009] Furthermore, the driving assembly includes a fixed plate, a driving wheel, a driven wheel, a synchronous belt, a motor and a pressure wheel, the driving wheel and the driven wheel are arranged at intervals on the fixed plate, the fixed plate is installed on the first cylinder, the synchronous belt connects the driving wheel and the driven wheel, and the motor drives the driving wheel to rotate to drive the belt to move; the pressure wheel is arranged on the fixed plate through a pressure bracket, and the pressure wheel contacts the outer side of the synchronous belt.

[0010] Furthermore, the clamping bracket is fixed to the fixing plate by bolts, the clamping wheel is rotatably arranged on the clamping bracket, and the bolts and the clamping wheel are staggered.

[0011] Furthermore, the positioning assembly includes a reference seat, a positioning seat, a positioning pin and a clamping assembly, the positioning seat is arranged on the reference seat, and two protrusions are respectively arranged at intervals on the upper and lower ends of the side of the positioning seat, and mounting holes are provided on the protrusions, the positioning pin is arranged in the mounting hole, and the positioning pin is tightly fitted with the mounting hole, and the positioning pin is used to form a V-shaped fulcrum; the clamping assembly is arranged above the positioning seat, and the clamping assembly is used to act on the lower end of the workpiece on the reference seat.

[0012] Furthermore, the clamping assembly includes a second cylinder, a lifting block, a fixed seat, a guide rod and a spring. The second cylinder is vertically arranged on the side of the reference seat, the lifting block is arranged on the second cylinder, the fixed seat is arranged on the lifting block, the guide rod is slidably arranged on the fixed seat through a spring, and a push rod is extended from the lower end of the guide rod, and the spring is used to provide a downward driving force for the guide rod; during detection, the push rod acts on the upper end of the workpiece; the second cylinder drives the lifting block to move up and down.

[0013] Furthermore, the lifting block is provided with a guide hole that cooperates with the push rod.

[0014] Furthermore, the feeding assembly includes a third cylinder, a first gripper cylinder, a material holding block, a material storage block, a stopper, a fourth cylinder and a material feeding block, the material storage block is arranged on the material holding block, the material holding block and the material storage block are provided with mutually connected and through material holes, the stopper is slidably arranged at the bottom of the material holding block, the stopper is provided with a through hole allowing the workpiece to pass through, the third cylinder is used to drive the stopper to reciprocate to control the alignment or misalignment of the through hole and the material hole; a notch connected to the material hole is provided on the side of the material storage block, a clamping block is provided at the notch, and the first gripper cylinder is used to drive the clamping block to clamp the workpiece in the material storage block;

[0015] The feeding block is arranged on the fourth cylinder, a workpiece slot is arranged on the feeding block, and the fourth cylinder is used to drive the feeding block to move horizontally back and forth.

[0016] Furthermore, the fourth cylinder includes two stacked slide cylinders.

[0017] Furthermore, the transplanting assembly includes a bracket, a linear slide, a fifth cylinder, a sixth cylinder and a second clamping cylinder, the linear slide is arranged on the bracket, the fifth cylinder is arranged on the linear slide, the sixth cylinder is arranged on the fifth cylinder, at least two second clamping cylinders are arranged on the sixth cylinder, the second clamping cylinder is provided with a clamping claw, the second clamping cylinder is used to clamp the workpiece, the sixth cylinder is used to drive the workpiece to move along the X-axis, the fifth cylinder is used to drive the workpiece to move along the Y-axis, and the linear guide is used to drive the workpiece to move along the Y-axis.

[0018] Furthermore, the material dividing assembly includes two material receiving blocks arranged at intervals, and a material receiving trough is provided on the material receiving block, and the material receiving trough is funnel-shaped.

[0019] The beneficial effects achieved by the present invention are:

[0020] This invention enables automatic detection of circular runout of valve needle-type workpieces, improving detection efficiency while also saving manpower and significantly reducing detection costs. The drive assembly cleverly leverages the toughness and high friction coefficient of the synchronous belt to stably drive the workpiece, and is adaptable to detecting workpieces of varying sizes, offering enhanced adaptability. A pinch pulley is also included to facilitate synchronous belt installation and adjust the initial tension of the synchronous belt, making it easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of an automatic circular runout detection device of the present invention;

[0022] Figure 2 Schematic diagram of the three-dimensional structure of the detection component;

[0023] Figure 3 Schematic diagram of the three-dimensional structure of the drive component;

[0024] Figure 4 Schematic diagram of the three-dimensional structure of the compression assembly;

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the feeding component;

[0026] Figure 6 for Figure 5 A schematic diagram of a three-dimensional structure from another perspective;

[0027] Figure 7 Schematic diagram of the three-dimensional structure of the transplanting component;

[0028] The reference numerals are as follows:

[0029] 1. Feeding assembly, 2. Transplanting assembly, 3. Detection assembly, 4. Material dividing assembly, 11. Third cylinder, 12. First gripper cylinder, 13. Material holding block, 14. Material storage block, 15. Stopper, 16. Fourth cylinder, 17. Feeding block, 171. Workpiece slot, 21. Bracket, 22. Linear slide, 23. Fifth cylinder, 24. Sixth cylinder, 25. Second gripper cylinder, 31. First cylinder, 32. Drive assembly, 33. Positioning assembly, 34. Displacement sensor, 3 21. Fixed plate, 322. Driving wheel, 323. Driven wheel, 324. Synchronous belt, 325. Motor, 326. Pressure wheel, 327. Pressure bracket, 331. Reference seat, 332. Positioning seat, 333. Positioning pin, 334. Pressure assembly, 3321. Bump, 3341. Second cylinder, 3342. Lifting block, 3343. Fixed seat, 3344. Guide rod, 3345. Spring, 3346. Push rod, 41. Material receiving block, 42. Material receiving trough. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] A circular runout automatic detection device, such as Figure 1-Figure 7 As shown, including:

[0032] Feeding assembly 1, using feeding assembly 1 to deliver the workpiece to a designated position;

[0033] The transfer component 2 grabs the workpiece in the feeding component 1 and moves it into the detection component 3;

[0034] Detection component 3, using detection component 3 to perform circular runout detection on the machining features of the workpiece;

[0035] The material separation component 4 uses the transfer component 2 to move the workpieces that have been inspected to the material separation component 4, and uses the material separation component 4 to classify qualified and unqualified workpieces;

[0036] Specifically:

[0037] The detection assembly 3 includes a first cylinder 31, a drive assembly 32, a positioning assembly 33, and a displacement sensor 34. The displacement sensor 34 is mounted on the positioning assembly 33, and the drive assembly 32 is mounted on the first cylinder 31. During detection, the workpiece is placed in the positioning assembly 33, and the positioning assembly is used to maintain the workpiece in a vertical position. The first cylinder 31 drives the drive assembly 32 to move horizontally, and the drive assembly 32 drives the workpiece to rotate around its axis. During this rotation, the displacement sensor 34 detects the circular runout of the workpiece. The displacement sensor 34 can be a cylinder-type displacement sensor, such as the GT2-PA12KL model.

[0038] In one embodiment, if Figure 1-Figure 7 As shown, the drive assembly 32 includes a fixed plate 321, a driving wheel 322, a driven wheel 323, a synchronous belt 324, a motor 325, and a pressure roller 326. The driving wheel 322 and the driven wheel 323 are spaced apart on the fixed plate 321, which is mounted on the first cylinder 31. The synchronous belt 324 connects the driving wheel 322 and the driven wheel 323. The motor 325 is mounted on the fixed plate 321 and connected to the driving wheel 322. The driving wheel 322 is driven by the motor 325 to drive the synchronous belt 324. The pressure roller 326 is mounted on the fixed plate 321 via a pressure bracket 327. The pressure roller 326 tightens the synchronous belt 324; the pressure roller 326 acts on the outside of the synchronous belt 324. During operation, the first air cylinder 31 controls the drive assembly 32 to move toward and away from the workpiece. During operation, the first air cylinder 31 controls the drive assembly 32 to move toward the workpiece, causing the synchronous belt 324 to contact the workpiece, thereby rotating the workpiece. In this embodiment, the toughness and high coefficient of friction of the synchronous belt 324 are utilized to ensure stable and reliable rotation of the workpiece within the positioning assembly 33. Furthermore, a pressure roller 326 facilitates the installation of the synchronous belt 324 and allows adjustment of its initial tension.

[0039] In the above embodiment, if Figure 1-Figure 7 As shown, the clamping bracket 327 is fixed to the fixing plate 321 by bolts, and the clamping wheel 326 is rotatably arranged on the clamping bracket 327, and the bolts are staggered with the clamping wheel 326. Then, by rotating the clamping bracket 327, the position of the clamping wheel 326 can be adjusted, thereby achieving the adjustment of the tension of the synchronous belt 324.

[0040] In one embodiment, if Figure 1-Figure 7As shown, the positioning assembly 33 includes a reference seat 331, a positioning seat 332, a positioning pin 333, and a clamping assembly 334. The positioning seat 332 is arranged on the reference seat 331. Two protrusions 3321 are spaced apart at the upper and lower ends of the side of the positioning seat 332, respectively. A groove is formed between the two protrusions 3321. The protrusions 3321 are provided with mounting holes. The positioning pin 333 is disposed in the mounting holes and is tightly fitted with the mounting holes, forming a V-shaped fulcrum through the positioning pin 333. The protrusions 3321 provide a gap between the workpiece installation position and the positioning seat 332, leaving sufficient space for grasping and detecting the workpiece. The clamping assembly 334 is arranged above the positioning seat 332. When in use, the clamping assembly 334 acts on the upper end of the workpiece while ensuring that the lower end of the workpiece acts on the reference seat 331 to ensure the relative position of the detection assembly 3 and the workpiece.

[0041] In the above embodiment, if Figure 1-Figure 7 As shown, the clamping assembly 334 includes a second cylinder 3341, a lifting block 3342, a fixed seat 3343, a guide rod 3344 and a spring 3345. The second cylinder 3341 is vertically arranged on the side of the reference seat 331, the lifting block 3342 is arranged on the second cylinder 3341, the fixed seat 3343 is arranged on the lifting block 3342, the guide rod 3344 is slidably set on the fixed seat 3343 through the spring 3345, and a push rod 3346 is extended from the lower end of the guide rod 3344. The spring 3345 is used to provide a downward driving force for the guide rod 3344; during detection, the push rod 3346 acts on the upper end of the workpiece; the second cylinder 3341 drives the lifting block 3342 to move up and down.

[0042] In the above embodiment, if Figure 1-Figure 7 As shown, the lifting block 3342 is provided with a guide hole that cooperates with the push rod 3346. The end face of the guide hole is chamfered so that the push rod can be smoothly inserted into the guide hole. In addition, the size of the guide hole is larger than the size of the workpiece to facilitate the workpiece to pass through the guide hole. When in use, the lifting block 3342 is driven upward by the second cylinder 3341 so that there is enough space under the lifting block 3342 to place the workpiece. The workpiece is placed vertically on the V-shaped fulcrum formed by the positioning pin 333. The second cylinder 3341 drives the lifting block 3342 to move downward, and the push rod 3346 contacts the upper end of the workpiece, while the lower end of the workpiece contacts the reference seat 331. In this embodiment, because the measurement position is the upper end of the workpiece, the workpiece passes through the guide hole so that the measurement point protrudes from the upper surface of the lifting block 3342. The displacement sensor 34 works and performs a circular runout test on the measurement point.

[0043] In one embodiment, if Figure 1-Figure 7As shown, the feeding assembly 1 includes a third cylinder 11, a first gripper cylinder 12, a material holding block 13, a material storage block 14, a stopper 15, a fourth cylinder 16, and a material feeding block 17. The material storage block 14 is mounted on the material holding block 13. The material holding block 13 and the material storage block 14 are provided with interconnected and interpenetrating material holes. The material holes of the material storage block 14 are connected to a vibrating plate via a connecting pipe. The vibrating plate arranges the workpieces and then feeds them into the material holes of the material storage block 14 through the connecting pipe. The stopper 15 is slidably mounted on the bottom of the material holding block 13. The stopper 15 is provided with a through hole that allows the workpieces to pass through. When discharging, the third cylinder 11 is used to drive the stopper 15 to move to align the through hole with the material hole. If discharging stops, the third cylinder 11 is used to move the stopper 15 to misalign the through hole with the material hole. A gap communicating with the material hole is provided on the side of the material storage block 14 , and a clamping block is provided on the first clamping cylinder 12 . The clamping block is controlled by the first clamping cylinder 12 to pass through the gap to clamp the workpiece in the material storage block 14 to prevent it from falling into the material holding block 13 .

[0044] The feeding block 17 is set on the fourth cylinder 16, and a workpiece slot 171 is set on the feeding block 17. The fourth cylinder 16 is used to drive the feeding block 17 to move horizontally along the Y axis to send the workpiece to the designated area, so as to send the workpiece into the detection component 3 through the transplanting component 2.

[0045] In the above embodiment, the fourth cylinder 16 includes two stacked slide cylinders, thereby achieving stable long-distance transmission.

[0046] When the feeding assembly 1 is in use, the vibrating plate arranges the workpieces into the material holes of the material holding block 13. Two workpieces are placed in the material holding block 13 and the material storage block 14. The first gripper cylinder 12 clamps the workpiece in the material storage block 14. The third cylinder 11 then moves the stopper 15, allowing the workpiece in the material holding block 13 to slide out of the through hole and fall into the workpiece slot 171 of the feeding block 17. The fourth cylinder 16 then drives the feeding block 17 along the Y-axis to transport the workpiece to the designated location. Simultaneously, the fourth cylinder moves the stopper 15 to close the material hole. The first gripper cylinder 12 opens, allowing the workpiece to fall into the material holding block 13. The first gripper cylinder 12 then grips the workpiece in the material storage block 14.

[0047] In one embodiment, if Figure 1-Figure 7As shown, the transplanting assembly 2 includes a bracket 21, a linear slide 22, a fifth cylinder 23, a sixth cylinder 24, and a second clamping cylinder 25. The linear slide 22 is arranged on the bracket 21, the fifth cylinder 23 is arranged on the linear slide 22, and the sixth cylinder 24 is arranged on the fifth cylinder 23. At least two second clamping cylinders 25 are arranged on the sixth cylinder 24. The second clamping cylinders 25 are provided with clamps. The second clamping cylinders 25 are used to clamp the workpiece, the sixth cylinder 24 is used to drive the workpiece to move along the X-axis, the fifth cylinder 23 is used to drive the workpiece to move along the Y-axis, and the linear slide 22 is used to drive the workpiece to move along the Y-axis. Among them, two second clamping cylinders 25 are provided. When moving to the material picking position, a second clamping cylinder 25 grabs the workpiece on the feeding block 17 and takes out the workpiece that has been inspected in the inspection assembly 3 at the same time. Then, the workpiece is placed in the inspection assembly 3 by horizontal movement of the linear slide 22. At the same time, the inspected workpiece is placed in the material separation assembly 4 according to the inspection result.

[0048] In one embodiment, if Figure 1-Figure 7 As shown, the material separation assembly 4 comprises two spaced-apart receiving blocks 41, each equipped with a funnel-shaped receiving trough 42. One receiving block 41 connects to a box containing qualified material, while the other connects to a box containing rejected material. These two receiving blocks 41 allow for the separation and storage of qualified and rejected workpieces. The linear slide 22 moves the workpiece to the corresponding receiving block 41, whereupon the workpiece is placed to achieve separation.

[0049] When the present invention is used, Figure 1-Figure 7 As shown, the workpiece is fed into the feeding assembly 1 via a vibrating plate. The workpiece in the feeding assembly 1 is then fed into the detection assembly 3 via the transfer assembly 2. The workpiece is placed on a V-shaped straight line, and the lower end of the workpiece is brought into contact with the reference seat 331 via the clamping assembly 334 to ensure that the detection position corresponds to the position of the displacement sensor 34. The workpiece is then rotated by the drive assembly 32, and the displacement sensor 34 measures the fluctuation in value. If the measured value is within the specified range, the workpiece's circular runout is qualified; otherwise, it is unqualified. The workpiece is then fed into the separation assembly 4 via the transfer assembly 2 for separation and storage.

[0050] The above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. If the present invention is modified or replaced with equivalents without departing from the spirit and scope of the present invention, they should be included in the scope of protection of the claims of the present invention.

Claims

1. An automatic detection device for circular runout, characterized in that: include: A feeding assembly, utilizing the feeding assembly to deliver the workpiece to a designated position; A transfer assembly, which grabs the workpiece in the feeding assembly and moves it into the detection assembly; The detection component is used to perform circular runout detection on the machining features of the workpiece; A material separation component is used to move the inspected workpieces to the material separation component, and the material separation component is used to classify qualified and unqualified workpieces; The detection assembly includes a first cylinder, a drive assembly, a positioning assembly and a displacement sensor, wherein the displacement sensor is arranged on the positioning assembly, and the drive assembly is arranged on the first cylinder. The first cylinder drives the drive assembly to move back and forth, and the drive assembly drives the workpiece in the positioning assembly to rotate; The positioning assembly includes a reference seat, a positioning seat, a positioning pin and a clamping assembly. The positioning seat is arranged on the reference seat. Two protrusions are respectively arranged at intervals on the upper and lower ends of the side of the positioning seat. Mounting holes are provided on the protrusions. The positioning pin is arranged in the mounting hole, and the positioning pin is tightly fitted with the mounting hole to form a V-shaped fulcrum. The clamping assembly is arranged above the positioning seat, and the clamping assembly is used to act on the lower end of the workpiece on the reference seat.

2. The automatic circular runout detection device according to claim 1, characterized in that: The driving assembly includes a fixed plate, a driving wheel, a driven wheel, a synchronous belt, a motor and a pressure wheel. The driving wheel and the driven wheel are arranged at intervals on the fixed plate, and the fixed plate is installed on the first cylinder. The synchronous belt connects the driving wheel and the driven wheel. The motor drives the driving wheel to rotate to drive the belt to move; the pressure wheel is arranged on the fixed plate through a pressure bracket, and the pressure wheel contacts the outer side of the synchronous belt.

3. The automatic circular runout detection device according to claim 2, characterized in that: The clamping bracket is fixed to the fixing plate by bolts, the clamping wheel is rotatably arranged on the clamping bracket, and the bolts and the clamping wheel are staggered.

4. The automatic circular runout detection device according to claim 1, characterized in that: The clamping assembly includes a second cylinder, a lifting block, a fixed seat, a guide rod and a spring. The second cylinder is vertically arranged on the side of the reference seat, the lifting block is arranged on the second cylinder, the fixed seat is arranged on the lifting block, the guide rod is slidably arranged on the fixed seat through a spring, and a push rod is extended from the lower end of the guide rod, and the spring is used to provide a downward driving force for the guide rod; during detection, the push rod acts on the upper end of the workpiece; the second cylinder drives the lifting block to move up and down.

5. The automatic circular runout detection device according to claim 4, characterized in that: The lifting block is provided with a guide hole which cooperates with the push rod.

6. The automatic circular runout detection device according to claim 1, characterized in that: The feeding assembly includes a third cylinder, a first gripper cylinder, a material holding block, a material storage block, a stopper, a fourth cylinder and a material feeding block, wherein the material storage block is arranged on the material holding block, the material holding block and the material storage block are provided with mutually connected and through material holes, the stopper is slidably arranged on the bottom of the material holding block, the stopper is provided with a through hole allowing the workpiece to pass through, the third cylinder is used to drive the stopper to reciprocate to control the alignment or misalignment of the through hole and the material hole; a notch connected to the material hole is provided on the side of the material storage block, a clamping block is provided at the notch, and the first gripper cylinder is used to drive the clamping block to clamp the workpiece in the material storage block; The feeding block is arranged on the fourth cylinder, a workpiece slot is arranged on the feeding block, and the fourth cylinder is used to drive the feeding block to move horizontally back and forth.

7. The automatic circular runout detection device according to claim 6, characterized in that: The fourth cylinder includes two stacked slide cylinders.

8. The automatic circular runout detection device according to claim 1, characterized in that: The transplanting assembly includes a bracket, a linear slide, a fifth cylinder, a sixth cylinder and a second clamping cylinder. The linear slide is arranged on the bracket, the fifth cylinder is arranged on the linear slide, the sixth cylinder is arranged on the fifth cylinder, at least two second clamping cylinders are arranged on the sixth cylinder, and a clamping claw is arranged on the second clamping cylinder. The second clamping cylinder is used to clamp the workpiece, the sixth cylinder is used to drive the workpiece to move along the X-axis, the fifth cylinder is used to drive the workpiece to move along the Y-axis, and the linear slide is used to drive the workpiece to move along the Y-axis.

9. The automatic circular runout detection device according to claim 1, characterized in that: The material dividing assembly comprises two material receiving blocks which are spaced apart from each other. A material receiving trough is provided on the material receiving blocks, and the material receiving trough is funnel-shaped.

Images