Automatic detection device for number of end face teeth

Abstract

The utility model relates to the technical field of detection devices, and discloses an end face tooth number automatic detection device which comprises a workbench and a detection motor, a base is fixedly installed in the middle of the upper end of the workbench, an alignment spring is installed at the bottom of a sliding cavity of the base, a sliding block is installed at the upper end of the alignment spring in the sliding cavity in a sliding mode, and the detection motor is connected with the detection motor. The left end and the right end of the sliding block are both fixedly connected with flow stopping blocks, the left end and the right end of the sliding cavity are both provided with limiting grooves, a two-way screw penetrates through and is rotationally installed between the left end and the right end of the fixing frame, the two-way screw is sleeved with two sets of symmetrical threaded pieces in a threaded mode, and the lower ends of the threaded pieces are both fixedly provided with anti-skid clamping blocks. According to the device, automatic alignment and meshing of the workpiece and the detection tool are achieved, alignment can be conducted without manual operation, meanwhile, the current change of the detection motor serves as the judgment basis, automatic detection of the number of the end face teeth is achieved, the detection efficiency is improved, and the labor cost and the labor intensity are reduced.

Description

Technical Field

[0001] This utility model relates to the field of detection device technology, and in particular to an automatic detection device for the number of teeth on the end face. Background Technology

[0002] In industrial production, the detection of the number of teeth on the end face is crucial for workpiece assembly accuracy and equipment operational stability. Currently, many companies still rely on manual methods to detect the number of teeth on the end face, judging the meshing state between the workpiece teeth and the inspection fixture through visual observation and manual auxiliary tools. This traditional method has certain limitations. Manual operation is susceptible to subjective judgment and fatigue, and the detection efficiency is low, making it difficult to meet the needs of large-scale production. Furthermore, manual inspection is labor-intensive and not conducive to freeing up labor resources. In the context of automated production equipment, companies urgently need more efficient and intelligent automated detection solutions. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an automatic end face tooth quantity detection device, which has the advantages of automatic alignment and automatic detection, and solves some of the problems mentioned in the background technology.

[0004] This utility model provides the following technical solution: an automatic end face tooth quantity detection device, including a worktable and a detection motor. A base is fixedly installed at the middle of the upper end of the worktable. A sliding cavity is provided at the middle of the upper end of the base. An alignment spring is installed at the bottom of the sliding cavity. A slider is slidably installed inside the sliding cavity above the alignment spring. A flow-blocking block is fixedly connected to both ends of the slider. A limit groove is provided at both ends of the sliding cavity. The flow-blocking block is slidably connected inside the limit groove. A fixing frame is fixedly connected to the lower end of the detection motor. A bidirectional screw is rotatably installed between the left and right ends of the fixing frame. Two sets of symmetrical threaded parts are threaded onto the bidirectional screw. Anti-slip clamps are fixedly installed at the lower ends of the threaded parts.

[0005] Furthermore, the worktable has evenly distributed inspection fixtures near its edge. Each inspection fixture has a fixed rod at the lower center, and each rod has a fixed block at the lower center. The slider has a square groove in the middle, and the square groove and the block are compatible. It is worth mentioning that when inspecting the same batch of workpieces of the same model, the corresponding inspection fixture needs to be placed on the base, and the block at the lower end of the rod needs to be engaged with the square groove, so that the rotation of the workpiece can drive the slider to rotate.

[0006] Furthermore, a stepper motor is fixedly installed at the right end of the fixing frame, and the output end of the stepper motor is fixedly connected to the bidirectional screw through a coupling. Limiting rods are fixedly installed at the left and right ends of the fixing frame on the upper side of the bidirectional screw. The upper end of the threaded part is slidably connected to the outside of the limiting rod, and the limiting rod limits the threaded part to ensure the rationality of the structure.

[0007] Furthermore, a housing is fixedly installed on the outside of the detection motor, and an electric push rod is fixedly installed at the middle of the upper end of the housing. The housing is designed to provide a stable and vertical mounting surface for the electric push rod, avoiding structural tilting and improving alignment accuracy.

[0008] Furthermore, an electric turntable is installed on the right end of the workbench. A rocker arm is fixedly connected to the upper output end of the electric turntable. The lower end of the rocker arm is fixedly connected to an electric push rod one near the middle of the left end. Two sets of electric push rods two are symmetrically arranged on the rocker arm in the middle area. The electric push rods two can extend and retract the anti-slip clamps and other structures in the horizontal direction to meet the needs of picking up and placing workpieces in different environments, making it more flexible.

[0009] The advantages of this utility model are as follows:

[0010] 1. Through the coordinated operation of the electric turntable, electric push rod and detection motor, the workpiece drives the fixture to rotate slowly. The rebound force of the alignment spring is used to realize the automatic alignment and engagement of the workpiece and the fixture. No manual operation is required for alignment, which effectively ensures the accuracy of subsequent inspection and improves the reliability of the inspection results.

[0011] 2. By using the change in current during the detection of the motor drive process as the basis for judgment, when the number of teeth on the end face of the workpiece is qualified, the limiting block formed by the meshing between the teeth will increase the load torque of the motor and the current. If it exceeds the preset threshold, it is judged as qualified; otherwise, it is judged as unqualified. This mechanism does not require manual intervention, realizes the automated detection of the number of teeth on the end face, improves the detection efficiency, and reduces labor costs and labor intensity. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a partial structural schematic diagram of the present invention;

[0014] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A;

[0015] Figure 4 This is a schematic diagram of the internal structure of the base of this utility model;

[0016] Figure 5 This is a schematic diagram of the inspection fixture structure of this utility model.

[0017] In the diagram: 1. Workbench; 2. Detection motor; 3. Base; 4. Slide cavity; 5. Alignment spring; 6. Slider; 7. Flow block; 8. Limiting groove; 9. Square groove; 10. Inspection tool; 11. Insert rod; 12. Square block; 13. Fixture; 14. Bidirectional screw; 15. Threaded part; 16. Anti-slip clamp; 17. Stepper motor; 18. Limiting rod; 19. Housing; 20. Electric push rod one; 21. Electric turntable; 22. Rocker arm; 23. Electric push rod two. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-4An automatic end-face tooth count detection device includes a worktable 1 and a detection motor 2. A base 3 is fixedly installed at the middle of the upper end of the worktable 1. A sliding cavity 4 is provided at the middle of the upper end of the base 3. An alignment spring 5 is installed at the bottom of the sliding cavity 4. A slider 6 is slidably installed inside the sliding cavity 4 above the alignment spring 5. Flow-blocking blocks 7 are fixedly connected to both ends of the slider 6. Limit grooves 8 are provided at both ends of the sliding cavity 4. The flow-blocking blocks 7 are slidably connected inside the limit grooves 8. A fixing frame 13 is fixedly connected to the lower end of the detection motor 2. The left side of the fixing frame 13... A bidirectional screw 14 is installed through and rotatably between the two ends on the right. Two sets of symmetrical threaded parts 15 are threaded onto the bidirectional screw 14. Anti-slip clamps 16 are fixedly installed at the lower ends of the threaded parts 15. Evenly distributed inspection fixtures 10 are placed on the worktable 1 near the edge. Insert rods 11 are fixedly connected to the middle of the lower end of each inspection fixture 10. A block 12 is fixedly connected to the middle of the lower end of each insert rod 11. A square groove 9 is provided in the middle of the slider 6. The square groove 9 is compatible with the block 12. By opening the electric turntable 21, the rocker arm 22 and the electric push rod 20, etc., are activated. The rotation eventually allows the anti-slip clamp 16 to rotate to the workpiece. By opening the electric push rod 20, its telescopic end lowers the anti-slip clamp 16 to both ends of the workpiece. Then, the stepper motor 17 is activated, its output end driving the bidirectional screw 14 to rotate. The rotation of the bidirectional screw 14 moves the threaded component 15, causing the anti-slip clamp 16 to clamp and fix the workpiece. Then, driven by the electric turntable 21, the workpiece is moved to the upper side of the fixture 10 on the base 3 and aligned. The electric push rod 20 lowers the workpiece until it touches the upper end of the fixture 10, and then continues to lower the workpiece. As the slider 6 slides downwards, the alignment spring 5 is compressed. During this process, the end face or teeth of the workpiece will abut against the protruding teeth of the fixture 10. By turning on the detection motor 2, its output end drives the fixed frame 13 to rotate, which can eventually drive the workpiece to rotate a small angle. During the rotation, due to the upward rebound force of the alignment spring 5, when the protruding teeth on the fixture 10 mesh with the end face teeth of the workpiece, the fixture 10 will rise under the rebound action of the alignment spring 5, thereby completing the automatic alignment and meshing between the fixture 10 and the workpiece, ensuring the accuracy of subsequent detection.

[0020] Please see Figures 3-5A stepper motor 17 is fixedly installed at the right end of the fixed frame 13. The output end of the stepper motor 17 is fixedly connected to the bidirectional screw 14 via a coupling. Limiting rods 18 are fixedly installed on the upper side of the bidirectional screw 14 at both ends of the fixed frame 13. The upper ends of the threaded parts 15 are all slidably connected to the outside of the limiting rods 18. A housing 19 is fixedly installed on the outside of the detection motor 2. An electric push rod 20 is fixedly installed at the middle of the upper end of the housing 19. An electric turntable 21 is installed at the right end of the worktable 1. The upper output end of the electric turntable 21 is fixed A rocker arm 22 is connected, with its lower end fixedly connected to an electric push rod 20 near the middle of its left end. Two sets of electric push rods 23 are symmetrically arranged on the rocker arm 22 in the middle area. The detection motor 2 drives the workpiece to continue rotating. Due to the meshing relationship and the clamping action of the alignment spring 5 on the fixture 10, the workpiece will drive the fixture 10 to rotate. The fixture 10 will synchronously drive the slider 6 and the flow-blocking block 7 to rotate. When the flow-blocking block 7 rotates and abuts against the side end of the limiting groove 8, if the end face teeth of the workpiece are in compliance, a strong limiting resistance will be formed between it and the fixture 10. The blocking effect causes a sharp increase in the load torque of the detection motor 2 and an increase in the drive current. When the detection current exceeds the preset threshold, it can be determined that the number of teeth on the end face of the workpiece is qualified. When the number of teeth on the end face exceeds or falls below the qualified number, there will be no meshing relationship between it and the fixture 10, or the meshing force will be weak. Therefore, during the process of the workpiece being driven to rotate, it will not be blocked by the flow block 7 and the limiting groove 8, or the influence will be weak. That is, the drive current of the detection motor 2 will not exceed the preset threshold, and it can be determined that the workpiece is unqualified. Finally, the qualified or unqualified workpieces are separated and stored by the coordinated action of the electric turntable 21, the electric push rod 23, the electric push rod 20, and the stepper motor 17. Compared with the traditional manual inspection, this device can realize the automated operation of workpiece end face tooth inspection, freeing up labor and improving inspection efficiency. The device has a laser positioning sensor transmitter installed in the middle of one end of the base 3 and a laser positioning sensor receiver installed at the corresponding position on the fixed frame 13. This positioning structure provides an auxiliary function for the alignment operation between the workpiece and the fixture 10.

[0021] Working principle: In use, by opening the electric turntable 21, the rocker arm 22 and electric push rod 20 are rotated, which eventually allows the anti-slip clamp 16 to rotate to the workpiece. By opening the electric push rod 20, its telescopic end drives the anti-slip clamp 16 to descend to both ends of the workpiece. Then, the stepper motor 17 is turned on, and its output end drives the bidirectional screw 14 to rotate. The rotation of the bidirectional screw 14 drives the threaded part 15 to move, so that the anti-slip clamp 16 clamps and fixes the workpiece. Then, under the drive of the electric turntable 21, the workpiece is moved to the upper side of the inspection fixture 10 on the base 3 and aligned. The electric push rod 20 lowers the workpiece until it touches the upper end of the fixture 10, and continues to lower it. The slider 6 slides downwards, and the alignment spring 5 is compressed. During this process, the end face or teeth of the workpiece abut against the protruding teeth of the fixture 10. By activating the detection motor 2, its output drives the fixing frame 13 to rotate, ultimately rotating the workpiece by a small angle. During this rotation, due to the upward rebound force of the alignment spring 5, when the protruding teeth on the fixture 10 mesh with the end face teeth of the workpiece, the fixture 10 will rise under the rebound action of the alignment spring 5. The workpiece is automatically aligned and engaged with the fixture 10. Further, the workpiece continues to rotate via the detection motor 2. Due to the meshing relationship and the clamping action of the alignment spring 5 on the fixture 10, the workpiece drives the fixture 10 to rotate. The fixture 10 synchronously drives the slider 6 and the flow-blocking block 7 to rotate. When the flow-blocking block 7 rotates and abuts against the side end of the limiting groove 8, if the end face teeth of the workpiece are aligned, a strong limiting and blocking effect will be formed between it and the fixture 10. This causes a sharp increase in the load torque of the detection motor 2 and an increase in the drive current. When the detection current exceeds a preset threshold, it can... If the number of teeth on the end face of the workpiece is found to be qualified, but the number of teeth on the end face exceeds or falls below the qualified number, there will be no meshing relationship between it and the inspection fixture 10, or the meshing force will be weak. Therefore, during the process of the workpiece being driven to rotate, it will not be blocked by the flow block 7 and the limiting groove 8, or the influence will be weak. That is, the driving current of the detection motor 2 will not exceed the preset threshold. It can be determined that the workpiece is unqualified. Finally, the qualified or unqualified workpieces will be separated and stored by the coordinated action of the electric turntable 21, the electric push rod 23, the electric push rod 20, and the stepper motor 17.

Claims

1. An automatic detection device for the number of teeth on an end face, comprising a worktable (1) and a detection motor (2), characterized in that: A base (3) is fixedly installed at the middle of the upper end of the workbench (1). A sliding cavity (4) is provided at the middle of the upper end of the base (3). A positioning spring (5) is installed at the bottom of the sliding cavity (4) on the base (3). A slider (6) is slidably installed at the upper end of the positioning spring (5) inside the sliding cavity (4). A flow-blocking block (7) is fixedly connected to both the left and right ends of the slider (6). A limit groove (8) is provided at both the left and right ends of the sliding cavity (4). The flow-blocking block (7) is slidably connected inside the limit groove (8). A fixing frame (13) is fixedly connected to the lower end of the detection motor (2). A bidirectional screw (14) is installed through and rotatably between the left and right ends of the fixing frame (13). Two sets of symmetrical threaded parts (15) are threaded on the bidirectional screw (14). Anti-slip clamps (16) are fixedly installed at the lower ends of the threaded parts (15).

2. The automatic end-face tooth quantity detection device according to claim 1, characterized in that: On the workbench (1), there are uniformly distributed inspection tools (10) near the edge. Each inspection tool (10) has a fixed rod (11) at the middle of its lower end. Each rod (11) has a fixed block (12) at the middle of its lower end. A square groove (9) is provided in the middle of the slider (6). The square groove (9) and the block (12) are compatible.

3. The automatic end-face tooth quantity detection device according to claim 1, characterized in that: A stepper motor (17) is fixedly installed at the right end of the fixed frame (13). The output end of the stepper motor (17) is fixedly connected to the bidirectional screw (14) through a coupling. Limiting rods (18) are fixedly installed at the left and right ends of the fixed frame (13) on the upper side of the bidirectional screw (14). The upper ends of the threaded parts (15) are all slidably connected to the outside of the limiting rods (18).

4. The automatic end-face tooth quantity detection device according to claim 1, characterized in that: The outer side of the detection motor (2) is fixedly installed with a housing (19), and an electric push rod (20) is fixedly installed at the middle of the upper end of the housing (19).

5. The automatic end-face tooth quantity detection device according to claim 4, characterized in that: An electric turntable (21) is installed on the right end of the workbench (1). A rocker arm (22) is fixedly connected to the upper output end of the electric turntable (21). The lower end of the rocker arm (22) is fixedly connected to an electric push rod (20) near the middle of the left end. Two sets of electric push rods (23) are symmetrically arranged on the rocker arm (22) in the middle area.

6. The automatic end-face tooth quantity detection device according to claim 1, characterized in that: The transmitter of the laser positioning sensor is fixedly installed at the middle of the rear end of the base (3), and the receiver of the laser positioning sensor is fixedly installed at the corresponding position on the mounting bracket (13).

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