Fastener chamfering equipment

Abstract

The utility model relates to fastener chamfering equipment, and relates to the technical field of fastener machining. The fastener chamfering equipment comprises a feeding mechanism and a chamfering mechanism, the chamfering mechanism comprises a chamfering tool used for chamfering, the fastener chamfering equipment further comprises a material taking mechanical arm, a rotating clamp and a feeding push rod, the rotating clamp is provided with a clamping station allowing a rod part of a fastener to penetrate through, the feeding push rod is aligned to the center of the clamping station, and the feeding mechanism is arranged on the feeding mechanism. The material taking mechanical arm clamps a fastener on the feeding mechanism and inserts a rod part of the fastener into the clamping station, the feeding push rod moves towards the clamping station and completely pushes the rod part of the fastener into the clamping station, the rotating clamp is tightened to clamp the fastener, then the chamfering tool is driven to move to the chamfering station, and the clamping station is driven to clamp the rod part of the fastener. The rotating clamp drives the fastening piece to rotate so that the chamfering cutter can conduct chamfering operation on the head of the fastening piece. The chamfering device has the effect of limiting deviation and inclination when the fastener is chamfered.

Description

Technical Field

[0001] This application relates to the field of fastener processing technology, and in particular to a fastener chamfering device. Background Technology

[0002] Fasteners are a general term for mechanical parts used to fasten two or more parts or components together into a single unit. After fastener processing, sharp corners and burrs are formed on the fastener. Touching these areas with bare hands may cut the skin, and sharp corners may also cause scratches when the parts come into contact with each other. Therefore, chamfering is usually required to remove sharp corners and burrs.

[0003] Existing chamfering equipment involves an automatic feeder conveying the workpiece to the chamfering station, clamping the workpiece with a fixture, and then aligning the workpiece with the cutting tool for grinding and chamfering. When clamping the workpiece, it is typically placed in a semi-circular groove, and then a fixture with a similar semi-circular groove is pressed down to tighten it. However, this method of pressing down has certain drawbacks for fasteners with uneven ends, such as bolts or screws. The fixture is usually positioned in the middle of the fastener, generally at its center of gravity. However, the center of gravity of fasteners with heads is difficult to determine, and the fixture usually only clamps a section of the fastener's shank. Therefore, during the chamfering process of the cutting tool rotating to chamfer the head of the fastener, the force on the head can cause the other end to shift or tilt, resulting in chamfering deviations. Utility Model Content

[0004] To address the issue of potential misalignment and tilting of the other end when chamfering the head of a fastener, this application provides a fastener chamfering device.

[0005] The fastener chamfering device provided in this application adopts the following technical solution:

[0006] A fastener chamfering device includes a feeding mechanism and a chamfering mechanism. The chamfering mechanism includes a chamfering blade for chamfering, a material handling robot, a rotating clamp, and a feeding push rod. The rotating clamp has a clamping station for the shank of the fastener to pass through. The feeding push rod is aligned with the center of the clamping station. The material handling robot clamps the fastener on the feeding mechanism and inserts the shank of the fastener into the clamping station. The feeding push rod moves towards the clamping station and pushes the shank of the fastener completely into the clamping station. The rotating clamp tightens to clamp the fastener. Then, the chamfering blade is driven to move to the chamfering station. The rotating clamp rotates the fastener so that the chamfering blade can chamfer the head of the fastener.

[0007] By adopting the above technical solution, after the material handling robot inserts the shank of the fastener into the clamping station, the feed pusher aligns with the center of the clamping station and pushes the shank of the fastener completely into the clamping station. The rotating fixture tightens to clamp the fastener, and the rotating fixture drives the fastener to rotate, causing the head of the fastener to rotate along the chamfering blade to complete the chamfering operation. The shank of the fastener is surrounded and clamped by the rotating fixture, making it difficult for the fastener to shift or tilt. Furthermore, during chamfering, the chamfering blade is relatively fixed, and the rotating fixture drives the fastener to rotate, limiting the possibility of uneven chamfering caused by the vibration of the chamfering blade.

[0008] Preferably, the chamfering mechanism further includes a linear slide rail and a drive mechanism. The linear slide rail is fixed to the end of the feeding mechanism, the drive mechanism is fixed to the moving end of the linear slide rail, and the chamfering blade is fixed relative to the drive mechanism. The drive mechanism drives the chamfering blade to move closer to or away from the clamping station to chamfer the head of the fastener.

[0009] Preferably, the driving mechanism includes a driving cylinder, a fixed block, and a slider. The fixed block is fixed on the linear slide rail, the cylinder body of the driving cylinder is fixed on the fixed block, the piston rod of the driving cylinder passes through the fixed block and is fixedly connected to the slider, the slider is slidably connected to the fixed block, and the chamfering tool is fixed on the slider.

[0010] Preferably, the chamfering mechanism further includes a tool holder, the chamfering tool is fixed on the tool holder, and the tool holder is adjustablely fixed on the slider.

[0011] Preferably, the tool holder is fixedly connected to a dovetail block, a fixing bolt is inserted through the dovetail block, and a dovetail groove is formed on the slider. The dovetail groove is formed along the sliding direction of the slider, and the size of the dovetail groove is larger than that of the dovetail block so that the dovetail block can slide along the dovetail groove. The fixing bolt is tightened so that the dovetail block abuts against the groove wall of the dovetail groove, thereby fixing the tool holder to the slider.

[0012] Preferably, the material handling robot is fixed on a three-axis cantilever linear module.

[0013] Preferably, it also includes a discharge push rod, which is located on the back of the clamping station to push the chamfered fastener out of the clamping station.

[0014] Preferably, it also includes a discharge channel, which has a plurality of screen holes, the size of which is smaller than the size of the fastener.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] The chamfering process has high precision. Before chamfering, the shank of the fastener is surrounded and clamped by the rotating fixture, making it difficult for the fastener to shift or tilt. During chamfering, the chamfering tool is relatively fixed, and the rotating fixture drives the fastener to rotate. Compared with the traditional chamfering tool rotation for chamfering, the fastener rotation chamfering limits the possibility of uneven chamfering caused by motor vibration causing the chamfering tool to vibrate.

[0017] With high adaptability, the material handling robot is fixed on a three-axis cantilever linear module and can be adjusted on the xyz axis. The tool holder can slide along the dovetail groove for adjustment, so the position of each mechanism can be adjusted according to fasteners of different sizes. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the fastener chamfering device in the embodiments of this application.

[0019] Figure 2 This is a partial structural schematic diagram of the fastener chamfering device in the embodiments of this application.

[0020] Figure 3 This is a partial structural schematic diagram of the fastener chamfering device in the embodiments of this application.

[0021] Figure 4 This is a partial structural cross-sectional view of the fastener chamfering device in the embodiments of this application.

[0022] Figure 5 This is a three-dimensional structural schematic diagram of the fastener chamfering device from another perspective in the embodiments of this application.

[0023] Explanation of reference numerals in the attached drawings: 1. Feeding mechanism; 2. Material handling robot; 3. Feeding push rod; 4. Rotary clamp; 5. Chamfering mechanism; 41. Clamping station; 51. Chamfering knife; 52. Linear slide rail; 53. Drive mechanism; 531. Drive cylinder; 532. Fixing block; 533. Slider; 54. Tool holder; 541. Dovetail block; 542. Fixing bolt; 543. Dovetail groove; 6. Discharge push rod; 7. Discharge channel; 71. Screen hole. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0025] This application discloses a fastener chamfering device. (Refer to...) Figure 1The fastener chamfering device includes a feeding mechanism 1, a picking robot 2, a feeding pusher 3, a rotating clamp 4, and a chamfering mechanism 5. The feeding mechanism 1 is used to feed fasteners. The picking robot 2 is fixed to the end of the feeding mechanism 1 and is used to pick up fasteners from the feeding mechanism 1 and place them into the rotating clamp 4. The rotating clamp 4 is used to clamp the fasteners for chamfering. The rotating clamp 4 can be equipped with a pneumatic rotating chuck and has a clamping station 41 for fastener insertion. The feeding pusher 3 is aligned with the center of the clamping station 41 to push the fastener into the clamping station 41. The chamfering mechanism 5 includes a chamfering cutter 51 for performing the chamfering operation. The picking robot 2 picks up the fastener so that the shank of the fastener is inserted into the clamping station 41. The feeding pusher 3 moves to abut against the head of the fastener, pushing the shank of the fastener completely into the clamping station 41. The rotating clamp 4 tightens the fastener located in the clamping station 41. After the chamfering mechanism 5 moves to the chamfering station, the rotating clamp 4 drives the fastener to rotate so that the chamfering cutter 51 chamfers the head of the fastener.

[0026] Reference Figure 1 and Figure 2 The chamfering mechanism 5 also includes a linear slide rail 52 and a drive mechanism 53. The linear slide rail 52 is fixed to the end of the feeding mechanism 1, and the track of the linear slide rail 52 is opened along the material channel direction of the feeding mechanism 1. The drive mechanism 53 is fixed to the moving end of the linear slide rail 52, and the chamfering blade 51 is relatively fixed on the drive mechanism 53. The linear slide rail 52 drives the drive mechanism 53 to slide closer to or away from the clamping station 41, and the drive mechanism 53 drives the chamfering blade 51 to move closer to or away from the clamping station 41 to chamfer the head of the fastener. The direction in which the drive mechanism 53 drives the chamfering blade 51 to move is perpendicular to the sliding direction of the linear slide rail 52.

[0027] Reference Figure 2 and Figure 3 In a preferred embodiment, the drive mechanism 53 includes a drive cylinder 531, a fixed block 532, and a slider 533. The fixed block 532 is fixed to the linear slide rail 52. The cylinder body of the drive cylinder 531 is fixed to the fixed block 532. The piston rod of the drive cylinder 531 passes through the fixed block 532 and is fixedly connected to the slider 533. The slider 533 is slidably connected to the fixed block 532. The chamfering cutter 51 is fixed to the slider 533. When performing a chamfering operation, the piston rod of the drive cylinder 531 extends to drive the slider 533 to slide on the fixed block 532, so that the chamfering cutter 51 is aligned with the fastener for chamfering. After the chamfering is completed, the piston rod of the drive cylinder 531 retracts, causing the slider 533 to drive the chamfering cutter 51 to return to its original position.

[0028] Reference Figure 3 and Figure 4The chamfering mechanism 5 also includes a tool holder 54, on which a chamfering blade 51 is fixed. The tool holder 54 is fixed to a slider 533, and the tool holder 54 is used to securely connect the chamfering blade 51 and the slider 533. The chamfering blade 51 can be fixed to the tool holder 54 by means of bolts or other methods. The tool holder 54 is adjustablely fixed to the slider 533. In a preferred embodiment, a dovetail block 541 is fixedly connected to the tool holder 54, and a fixing bolt 542 passes through the dovetail block 541. The fixing bolt 542 is used to fix the tool holder 54 and the dovetail block 541. Preferably, the fixing bolt 542 passes through the tool holder 54 and the dovetail block 541 in sequence, and the fixing bolt 542 is located on the tool holder 54 for easy adjustment. The slider 533 has a dovetail groove 543, which is formed along the sliding direction of the slider 533. The size of the dovetail groove 543 is larger than that of the dovetail block 541. When the fixing bolt 542 is not fully tightened, the dovetail block 541 can slide along the dovetail groove 543, thereby allowing the tool holder 54 to be adjusted along the sliding direction of the slider 533. When the fixing bolt 542 is tightened, the two side walls of the dovetail block 541 abut against the two side walls of the dovetail groove 543, thereby fixing the tool holder 54 on the slider 533.

[0029] Reference Figure 2 In a preferred embodiment, the material handling robot 2 is fixed to a three-axis cantilever linear module. The three-axis cantilever linear module robot can slide in three directions, enabling multi-angle sliding, making the material handling robot 2 more flexible and adaptable.

[0030] Reference Figure 1 and Figure 5 The fastener chamfering device also includes a discharge push rod 6 and a discharge channel 7. The discharge push rod 6 is located on the back of the clamping station 41. When the chamfering is completed, the rotating clamp 4 loosens the tightening of the fastener rod, and the discharge push rod 6 extends into the clamping station 41, abuts against the fastener rod, and pushes the fastener out of the clamping station 41 and into the discharge channel 7. The feeding push rod 3 and the discharge push rod 6 can be implemented by cylinders. The discharge channel 7 is also provided with several screen holes 71. The function of the screen holes 71 is to filter out chamfering debris. Therefore, the size of the screen holes 71 is smaller than the size of the fastener so that the fastener can pass through the discharge channel 7, and the chamfering debris is filtered out through the screen holes 71.

[0031] The implementation principle of a fastener chamfering device according to an embodiment of this application is as follows: the material handling robot 2 clamps the fastener on the feeding mechanism 1 and inserts the rod part of the fastener into the clamping station 41. The feeding push rod 3 abuts against the head of the fastener and pushes the rod part of the fastener completely into the clamping station 41. The rotating clamp 4 tightens to clamp the fastener. The driving mechanism 53 slides along the linear slide rail 52 to approach the clamping station 41. The driving cylinder 531 drives the slider 533 to move the tool holder 54 to approach the clamping station 41. After the chamfering tool 51 reaches the chamfering station, the rotating clamp 4 rotates so that the chamfering tool 51 performs a chamfering operation on the head of the fastener. After the chamfering is completed, the rotating clamp 4 stops rotating and releases the clamp on the fastener. The drive mechanism 53 slides and resets along the linear slide rail 52. The discharge push rod 6 pushes the fastener from the back of the clamping station 41 against the rod of the fastener and pushes the fastener out of the clamping station 41 and into the discharge channel 7. The fastener is discharged after the chamfering debris is filtered out by the screen hole 71.

[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A fastener chamfering device, comprising a feeding mechanism (1) and a chamfering mechanism (5), wherein the chamfering mechanism (5) includes a chamfering cutter (51) for chamfering, characterized in that: It also includes a material handling robot (2), a rotating clamp (4), and a feeding push rod (3). The rotating clamp (4) is provided with a clamping station (41) for the rod of the fastener to pass through. The feeding push rod (3) is aligned with the center of the clamping station (41). The material handling robot (2) clamps the fastener on the feeding mechanism (1) and inserts the rod of the fastener into the clamping station (41). The feeding push rod (3) moves toward the clamping station (41) and pushes the rod of the fastener completely into the clamping station (41). The rotating clamp (4) tightens to clamp the fastener. Then, it drives the chamfering knife (51) to move to the chamfering station. The rotating clamp (4) drives the fastener to rotate so that the chamfering knife (51) can chamfer the head of the fastener.

2. The fastener chamfering device according to claim 1, characterized in that: The chamfering mechanism (5) further includes a linear slide rail (52) and a drive mechanism (53). The linear slide rail (52) is fixed at the end of the feeding mechanism (1), and the drive mechanism (53) is fixed at the moving end of the linear slide rail (52). The chamfering blade (51) is fixed relative to the drive mechanism (53). The drive mechanism (53) drives the chamfering blade (51) to move closer to or away from the clamping station (41) to chamfer the head of the fastener.

3. The fastener chamfering device according to claim 2, characterized in that: The driving mechanism (53) includes a driving cylinder (531), a fixed block (532), and a slider (533). The fixed block (532) is fixed on the linear slide rail (52). The cylinder body of the driving cylinder (531) is fixed on the fixed block (532). The piston rod of the driving cylinder (531) passes through the fixed block (532) and is fixedly connected to the slider (533). The slider (533) is slidably connected to the fixed block (532). The chamfering tool (51) is fixed on the slider (533).

4. The fastener chamfering device according to claim 3, characterized in that: The chamfering mechanism (5) also includes a tool holder (54), the chamfering tool (51) is fixed on the tool holder (54), and the tool holder (54) is adjustablely fixed on the slider (533).

5. The fastener chamfering device according to claim 4, characterized in that: The tool holder (54) is fixedly connected to a dovetail block (541), and a fixing bolt (542) passes through the dovetail block (541). A dovetail groove (543) is opened on the slider (533), and the dovetail groove (543) is opened along the sliding direction of the slider (533). The size of the dovetail groove (543) is larger than that of the dovetail block (541) so that the dovetail block (541) can slide along the dovetail groove (543). The fixing bolt (542) is tightened so that the dovetail block (541) abuts against the groove wall of the dovetail groove (543), thereby fixing the tool holder (54) on the slider (533).

6. The fastener chamfering device according to claim 1, characterized in that: The material handling robot (2) is fixed on a three-axis cantilever linear module.

7. The fastener chamfering device according to claim 1, characterized in that: It also includes a discharge push rod (6), which is located on the back of the clamping station (41) for ejecting the chamfered fastener from the clamping station (41).

8. The fastener chamfering device according to claim 1, characterized in that: It also includes a discharge channel (7), which has a plurality of sieve holes (71), the size of which is smaller than the size of the fastener.

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