Automatic screw positioning and machining device

Abstract

The utility model relates to an automatic screw positioning and machining device which comprises a feeding mechanism, a machining bin and a discharging mechanism which are sequentially connected, a chuck and a sliding table supporting plate are arranged in the machining bin, the chuck is communicated with the feeding mechanism, a first positioning mechanism is arranged above the chuck, and a second positioning mechanism is arranged above the sliding table supporting plate. And a second positioning mechanism, a feeding transition mechanism and a cutter are fixedly arranged on the sliding table supporting plate. The automatic machining device has the advantages that automatic feeding, positioning, machining and discharging can be achieved, manual participation is not needed, and the machining efficiency is high; primary angle positioning is carried out when the second positioning mechanism adjusts the clamping length of the screw rod, the occupied time is short, and the overall machining period can be shortened; and secondary angle positioning is arranged, so that the processing angle is confirmed to be correct, and meanwhile, whether the screw thread size has errors can be detected.

Description

Technical Field

[0001] The utility model relates to the field of screw processing, in particular to an automatic screw positioning processing device. Background Art

[0002] The screw is a transmission element widely used in a variety of mechanical equipment and has a variety of uses. In some cases, the screw cannot be used directly, and sometimes it is necessary to cut the screw flat so as to set up components such as ferrules. When cutting the screw flat, there are specific requirements for the processing angle and length of the screw. Therefore, when processing each screw, workers need to manually adjust the screw length and angle, which is very cumbersome and prone to errors, and has low processing efficiency. Summary of the invention

[0003] The utility model mainly solves the above problems and provides a screw automatic positioning processing device.

[0004] The technical solution adopted by the utility model to solve its technical problems is a screw automatic positioning processing device, including a feeding mechanism, a processing chamber and a unloading mechanism connected in sequence, a chuck and a slide support plate are provided in the processing chamber, the chuck is connected to the feeding mechanism, a first positioning mechanism is provided above the chuck, and a second positioning mechanism, a feeding transition mechanism and a tool are fixedly provided on the slide support plate.

[0005] As a preferred embodiment of the above scheme, the first positioning mechanism includes a horizontal plate and a first laser ranging sensor, the first end of the horizontal plate is associated with the processing chamber, the first laser ranging sensor is fixedly arranged at the second end of the horizontal plate, and the first laser ranging sensor is arranged vertically downward.

[0006] As a preferred embodiment of the above scheme, the second positioning mechanism includes a stop block, an annular turntable, a second laser ranging sensor, an angle sensor and a first motor, the stop block is located in the center of the annular turntable, the second laser ranging sensor is fixedly arranged on the annular turntable, the annular turntable is driven by the first motor, the angle sensor detects the rotation angle of the annular turntable, and the distance from the second laser ranging sensor to the center of the stop block is between the major diameter and the minor diameter of the screw to be processed.

[0007] As a preferred embodiment of the above scheme, the loading mechanism includes a pushing cylinder, a first material stacking slope, a first material trough and a first material lifting cylinder. The first material trough is located at the lowest end of the first material stacking slope. A first baffle is provided between the first material trough and the first material stacking slope. The first material lifting cylinder is located below the first baffle facing the first material stacking slope. The pushing cylinder is provided at the first end of the first material trough. The second end of the first material trough passes through the wall of the processing chamber and is connected to the chuck.

[0008] As a preferred scheme of the above scheme, the unloading mechanism includes a second material stacking slope, a second material trough, a second material pushing cylinder, a telescopic cylinder and a clamping cylinder. The second material trough is located at the top of the second material stacking slope, the second material pushing cylinder is arranged in the second material trough, the first end of the second material trough is connected with the processing bin, the telescopic cylinder is arranged at the second end of the second material trough, and the clamping cylinder is fixedly arranged on the movable end of the telescopic cylinder.

[0009] As a preferred embodiment of the above scheme, the feeding transition mechanism includes a mounting seat body and a tube body, the mounting seat body is fixedly arranged on the slide plate, the tube body is fixedly arranged on the mounting seat body, and the length of the tube body is less than the length of the screw to be processed.

[0010] As a preferred solution of the above solution, a chip removing wire wheel is provided on the slide support plate.

[0011] The advantages of the utility model are: it can realize automatic loading, positioning, processing and unloading without manual participation, and the processing efficiency is high; the primary angle positioning is carried out when the second positioning mechanism adjusts the screw clamping length, which takes up less time and can shorten the overall processing cycle; a secondary angle positioning is provided to confirm that the processing angle is correct, and at the same time, it can detect whether there is an error in the screw thread size. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the top view of the structure of the automatic screw positioning processing device in the embodiment.

[0013] Figure 2 Schematic diagram of the internal structure of the second positioning mechanism in the embodiment.

[0014] 1-push cylinder 2-first material trough 3-first material stacking slope 4-first push cylinder 5-processing warehouse wall 6-chuck 7-horizontal plate 8-screw to be processed 9-slide support plate 10-tool 11-mounting seat body 12-tube body 13-second positioning mechanism 14-second material trough 15-second push cylinder 16-telescopic cylinder 17-clamping cylinder 18-second material stacking slope 19-block 20-annular turntable 21-second laser ranging sensor. DETAILED DESCRIPTION

[0015] The technical solution of the present invention is further described below through embodiments and in conjunction with the accompanying drawings.

[0016] Example:

[0017] This embodiment is a screw automatic positioning processing device, such as Figure 1As shown, it includes a feeding mechanism, a processing chamber and a feeding mechanism connected in sequence. A chuck 6 and a slide support plate 9 are provided in the processing chamber, the chuck 6 is connected to the feeding mechanism, a first positioning mechanism is provided above the chuck 6, and a second positioning mechanism 13, a feeding transition mechanism, a tool 10 and a chip removal wire wheel are fixedly provided on the slide support plate.

[0018] The loading mechanism includes a pushing cylinder 1, a first material stacking slope 3, a first material trough 2 and a first material top cylinder 4. The first material trough 2 is located at the lowermost end of the first material stacking slope 3. A first baffle is provided between the first material trough 2 and the first material stacking slope 3. The first material top cylinder 4 is located below the first baffle on the side facing the first material stacking slope 3. The pushing cylinder 4 is provided at the first end of the first material trough 2. The second end of the first material trough 2 passes through the processing bin wall 5 and is connected to the chuck 7. The screw rod 8 to be processed is stacked horizontally in the first material stacking slope 3. Under the action of gravity, the screw rod 8 to be processed will roll to the bottom of the first material stacking slope and be blocked by the first baffle. When loading, the first pushing cylinder 4 pushes upward, so that the screw rod to be processed directly above the first pushing cylinder 4 is higher than the first baffle. Then, under the action of gravity, the screw rod to be processed rolls into the first material trough 2. Then the pushing cylinder 1 pushes the screw rod to be processed along the first material trough 2 into the chuck. When the pushing cylinder pushes the material, the length of the screw rod to be processed extending out of the chuck should be greater than the length required for processing.

[0019] like Figure 2As shown, the second positioning mechanism 13 includes a stopper 19, an annular turntable 20, a second laser distance sensor 21, an angle sensor and a first motor. The stopper 19 is located in the center 20 of the annular turntable. The second laser distance sensor 21 is fixedly arranged on the annular turntable 20. The annular turntable 20 is driven by the first motor. The angle sensor detects the rotation angle of the annular turntable 20. The distance from the second laser distance sensor 21 to the center of the stopper 19 is between the major diameter and the minor diameter of the screw to be processed. After the loading mechanism completes the loading, the slide plate moves to align the stopper with the screw to be processed, and then the slide plate drives the second positioning mechanism to move toward the chuck. During the movement, the stopper abuts against the end of the screw to be processed, and the screw to be processed is pressed into the chuck. When the slide plate moves to the preset position, the adjustment of the clamping length of the screw is completed. In the process of adjusting the clamping length of the screw, the first motor drives the annular turntable to rotate. During the rotation of the annular turntable, the second laser ranging sensor 21 detects the distance from the annular turntable to the thread at the end face of the screw in real time. For screws with the same thread specifications and the same length, different screws are basically the same. Therefore, the thread end points of the screw ends should also be the same. In the process of driving the second laser ranging sensor 21 to rotate through the annular turntable, when passing the thread end point, the distance value detected by the second laser ranging sensor will suddenly change. Based on this, the angle of the current screw to be processed, that is, the value of the angle sensor, can be determined. The processing angle of the current screw to be processed is known, so the required rotation angle of the chuck can be obtained by calculating the difference between the processing angle of the current screw to be processed and the angle of the current screw to be processed. After completing the adjustment of the clamping length of the screw, the pallet slide moves horizontally to the right. During the right movement, the chuck clamps the screw and rotates it according to the rotation angle calculated by the chuck to complete the angle positioning of the screw.

[0020] The first positioning mechanism includes a horizontal plate 7 and a first laser ranging sensor. The first end of the horizontal plate 7 is fixed to the processing chamber 5. The first laser ranging sensor is fixedly arranged at the second end of the horizontal plate 7. The first laser ranging sensor is arranged vertically downward. The first positioning mechanism is used to perform secondary angle positioning on the screw to be processed. For the screw, it is in an approximately circular shape on the radial surface. The distance from each point on the edge of the radial surface to the axis changes with the change of the angle. Therefore, the angle of the screw can be positioned by detecting the distance from a certain point to the side of the screw. After completing the first angle positioning, the first laser ranging sensor detects the distance from it to the surface of the screw. If the distance is equal to the first preset value, it means that the secondary angle positioning is passed and processing can be performed; if the distance is not equal to the first preset value, the chuck rotates the screw, and the first laser ranging sensor measures the distance in real time during the rotation process, and at least the detected distance is equal to the first preset value. If the distance detected is less than the second preset value during the ranging process, it means that there is an error in the screw thread, and the machine should be stopped and an alarm should be given. The second pre-shrinkage value is the distance from the highest point of the thread to the second laser sensor. After completing the secondary angle positioning, the slide plate can drive the tool to process the screw according to the preset program.

[0021] The feeding transition mechanism includes a mounting seat body 11 and a tube body 12. The mounting seat body 11 is fixedly arranged on the slide support plate 9. The tube body 12 is fixedly arranged on the mounting seat body 11. The length of the tube body 12 is less than the length of the screw to be processed. The feeding transition mechanism is used to receive the processed screw to facilitate its clamping by the unloading mechanism. The unloading mechanism includes a second material stacking slope 18, a second material trough 14, a second material top cylinder 15, a telescopic cylinder 16 and a clamping cylinder 17. The second material trough 14 is located at the uppermost end of the second material stacking slope 18. The second material top cylinder 15 is arranged in the second material trough 14. The first end of the second material trough 14 is connected to the processing bin. The telescopic cylinder 16 is arranged at the second end of the second material trough 14. The clamping cylinder 17 is fixedly arranged on the movable end of the telescopic cylinder 16. After the processing of the screw is completed, the slide plate moves the tube body 12 to align with the screw, and then the loading mechanism starts loading. During the loading process, the screw to be processed pushes the processed screw in the chuck into the tube body, and the processed screw extends from the right end of the tube body. Then the telescopic cylinder extends the second material trough into the processing bin to the right end of the tube body, and the processed screw is clamped by the clamping cylinder. After that, the telescopic cylinder contracts, and the processed screw is clamped into the second material trough. Then, the second ejecting cylinder rises and lifts the screw in the second material trough. At this time, the screw rolls into the second material guide slope under the action of gravity, and finally rolls along the second material guide slope to the bottom of the second material guide slope. When the unloading mechanism clamps the screw to leave the tube body, in order to prevent the screw from falling, the slide plate can slide to the right at the same time.

[0022] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A screw automatic positioning processing device, characterized in that: It includes a feeding mechanism, a processing chamber and a feeding mechanism connected in sequence, wherein a chuck and a slide support plate are arranged in the processing chamber, the chuck is connected to the feeding mechanism, a first positioning mechanism is arranged above the chuck, and a second positioning mechanism, a feeding transition mechanism and a tool are fixedly arranged on the slide support plate.

2. The automatic screw positioning processing device according to claim 1 is characterized in that: The first positioning mechanism includes a horizontal plate and a first laser ranging sensor. The first end of the horizontal plate is fixed to the processing chamber. The first laser ranging sensor is fixedly arranged at the second end of the horizontal plate. The first laser ranging sensor is arranged vertically downward.

3. The automatic screw positioning processing device according to claim 1 is characterized in that: The second positioning mechanism includes a stop block, an annular turntable, a second laser ranging sensor, an angle sensor and a first motor. The stop block is located in the center of the annular turntable. The second laser ranging sensor is fixedly arranged on the annular turntable. The annular turntable is driven by the first motor. The angle sensor detects the rotation angle of the annular turntable. The distance from the second laser ranging sensor to the center of the stop block is between the major diameter and the minor diameter of the screw to be processed.

4. The automatic screw positioning processing device according to claim 1 is characterized in that: The loading mechanism includes a pushing cylinder, a first material stacking slope, a first material trough and a first material lifting cylinder. The first material trough is located at the lowest end of the first material stacking slope. A first baffle is provided between the first material trough and the first material stacking slope. The first material lifting cylinder is located below the first baffle facing the first material stacking slope. The pushing cylinder is provided at the first end of the first material trough. The second end of the first material trough passes through the wall of the processing chamber and is connected to the chuck.

5. The automatic screw positioning processing device according to claim 1 is characterized in that: The unloading mechanism includes a second material stacking slope, a second material trough, a second material pushing cylinder, a telescopic cylinder and a clamping cylinder. The second material trough is located at the top of the second material stacking slope. The second material pushing cylinder is arranged in the second material trough. The first end of the second material trough is connected with the processing bin. The telescopic cylinder is arranged at the second end of the second material trough. The clamping cylinder is fixedly arranged on the movable end of the telescopic cylinder.

6. The automatic screw positioning processing device according to claim 1 is characterized in that: The feeding transition mechanism comprises a mounting seat body and a tube body, wherein the mounting seat body is fixedly arranged on the slide support plate, and the tube body is fixedly arranged on the mounting seat body, and the length of the tube body is less than the length of the screw to be processed.

7. The automatic screw positioning processing device according to claim 1 is characterized in that: A chip removal wire wheel is provided on the slide support plate.

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