An automatic bead threading device suitable for PVD coating of tools with holes
By designing an automatic bead-piercing device, the coordinated work of the lifting plate and clamping assembly is used to realize the automatic drop and bead-piercing operation of spaced beads, solving the problems of worker operation complexity and high cost of automatic equipment in traditional technology, and improving efficiency and flexibility.
Patent Information
- Application Number
- CN202421285034.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-06-06
AI Technical Summary
In traditional technology, workers need to take turns to pick up two items of blade and bead, which leads to an increase in the complexity of workers installing entrained hole tools, increasing the operating burden, and the fully automatic tool penetration device is costly and inflexible.
An automatic beading device is designed, including pipes, spacer beads and automatic beading mechanisms. The automatic bead-piercing mechanism consists of a shift assembly, a driving assembly, a navigation plate, a lifting plate, a clamping assembly and a bead-piercing rod. Through the coordinated work of the lifting plate and a clamping assembly, the automatic drop and stop of the spacer beads are realized, and the clamping and release actions are automatically completed to complete the automatic bead-piercing operation.
The operation of the knife is simplified, the operation complexity and burden of workers is reduced, the efficiency of the knife is improved, the manufacturing cost is reduced, and it can flexibly adapt to the production characteristics of small batches and multiple models.
Smart Images
Figure CN222740774U_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of PVD tool coating production, in particular to an automatic bead threading device suitable for PVD coating of a tool with a hole. Background Art
[0002] After coating treatment, the cutting tool can significantly improve its own hardness, wear resistance, high temperature resistance and oxidation resistance. Therefore, applying high-performance coating is an economical and feasible method to extend the service life of cutting tools and improve processing efficiency.
[0003] The industrial preparation of tool coating will load the tools in batches onto the tool fixture, followed by pre- and post-processing and coating processes. For the clamping of holed tools, the blade is usually inserted through the inner hole on the metal rod. In order to avoid the blades above and below the metal rod from colliding with each other and damaging the cutting edge, and to avoid the blades blocking each other and affecting the deposition of plasma during the coating process, a spacer bead will be inserted between the two blades to achieve the effect of clamping the blades and controlling the distance between the blades.
[0004] The existing clamping method of the holed tool is to string the holed tool on a metal rod, with a spacer stringed between every two blades. The spacer is used to clamp the tool and control the distance between the tools so that each blade can better receive various spraying processes.
[0005] At present, there are some foreign companies in the market that manufacture fully automatic knife threading equipment, but the equipment price is often millions, which is very expensive. On the other hand, the products of tool coating companies are often small batches and multiple models, and the blades are of various sizes and shapes. Since the automated knife threading equipment requires complex sensors to achieve precise operation, it is only suitable for the threading rods of a few specific blade models that have been preset, which is not suitable for the production characteristics of tool coating companies. Therefore, most coating companies currently still mainly use manual knife threading, that is, workers manually thread the blades and spacer beads on the metal rods in turn. This method requires workers to take the blades and beads in turn, which increases the complexity of workers' clamping of holed tools and increases the operating burden of workers. The fully automatic knife threading device is expensive and easily restricted by the tool model, and cannot flexibly adapt to the production of small batches and multiple models. Summary of the invention
[0006] The present invention proposes an automatic bead threading device suitable for PVD coating of holed tools, which aims to solve the problem that in traditional technology, workers are required to take the blade and the bead in turn, which increases the complexity of workers' clamping of holed tools and increases the operating burden of workers.
[0007] In order to achieve the above object, the present invention adopts the following technical solutions:
[0008] An automatic bead threading device suitable for PVD coating of a tool with a hole, comprising:
[0009] A pipeline, wherein the pipeline is fixedly connected to a pipeline fixing member and an external frame of the pipeline fixing member;
[0010] Spacer beads, wherein the plurality of spacer beads are oblong beads with hollow through holes, and the plurality of spacer beads are coaxially arranged in the pipe along the long axis direction of the aperture;
[0011] The automatic bead threading mechanism comprises a shifting assembly, a driving assembly, a navigation plate, a lifting plate, a clamping assembly and a bead threading rod, the shifting assembly is connected to the pipe fixing part, a shifting groove is provided at the bottom of the pipe, the gap at the output end of the shifting assembly extends into the pipe through the shifting groove and abuts against the bottom of the spacer bead, the driving assembly is installed on an external frame, the navigation plate is fixedly connected to the external frame between the driving assembly and the pipe fixing part, the output end of the driving assembly is connected with a lifting plate, the navigation plate and the lifting plate are connected with the clamping assembly, the navigation plate and the lifting plate are slidably matched in the vertical direction through the clamping assembly, and when the lifting plate moves upward, its top abuts against the input end of the shifting assembly, the bead threading rod is fixedly connected to the external frame and is coaxially arranged with the pipe, when the output end of the clamping assembly moves upward, it clamps and matches with the spacer bead falling from the bottom of the pipe, and when it moves downward, it gaps with the coaxial top of the bead threading rod, and the bead threading rod is coaxially matched with the hollow through hole of the spacer bead.
[0012] Preferably, the shifting assembly includes a block and a tension spring, a rotating seat is fixedly connected to the pipe fixing piece, a rotating shaft is coaxially fixedly connected to the rotating seat, the block is rotatably connected to the rotating shaft, the bottom end of the block extends into the bottom of the pipe through the shifting groove, a tension spring is fixedly connected between the bottom of the block and the pipe fixing piece, and the top of the block is located directly above the lifting plate.
[0013] Preferably, the tension spring is initially in a tensioned state, wherein the bottom of the stopper abuts against the top of the deflection groove.
[0014] Preferably, the driving assembly includes a rocker, a connecting plate and a motor, the motor is mounted on an external frame, the motor output end is fixedly connected to a rocker, the rocker is L-shaped, the top of the rocker is fixedly connected to the motor output end, the bottom of the connecting plate is fixedly connected to the top of the lifting plate, and a transverse track groove is opened on the top, and the bottom end of the rocker is gap-slidably and rotatably connected in the transverse track groove.
[0015] Preferably, the clamping assembly includes a left clamping claw and a right clamping claw, and the navigation plate is provided with two vertical track grooves, the top length directions of the two vertical track grooves are parallel to the axial direction of the pipeline, and the bottoms are arc-shaped, wherein the two arc shapes are symmetrically arranged, and the bottoms are open outward, and a sliding connection groove is provided at the bottom of the lifting plate, and the sliding connection groove is perpendicular to the axial direction of the pipeline in length, and the left clamping claw and the right clamping claw both include an end rod and a clamping block fixedly connected to the end rod, and the two end rods are slidably connected in the two vertical track grooves one by one, and are both slidably connected in the sliding connection grooves, and placement grooves are provided on opposite sides of the two clamping blocks, wherein when the two clamping blocks are located above the vertical track grooves, the spacing between the two placement grooves is less than the maximum diameter of the spacer beads, and when the two clamping blocks are located below the vertical track grooves, the spacing between the two placement grooves is greater than the maximum diameter of the spacer beads.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] 1. The present invention sets an automatic bead threading mechanism. The driving assembly drives the lifting plate to reciprocate in the vertical direction. The lifting plate moves upward to push the block to rotate, so that the bottom end of the block is out of the pipe. The block no longer carries the spacer beads. The lifting plate moves downward and the block rotates and resets, forming a bearing effect on the second to last spacer bead at the bottom, preventing the spacer bead from falling directly, thereby realizing the automatic falling and stopping of the spacer beads.
[0018] 2. The present invention sets an automatic bead threading mechanism. When the lifting plate moves upward, the left clamping claw and the right clamping claw just move to the bottom of the pipe to stably carry the fallen spacer beads. When the lifting plate moves downward, the left clamping claw and the right clamping claw enter the bottom of the arc-shaped vertical track groove. The left clamping claw and the right clamping claw move away from each other, and the left clamping claw and the right clamping claw are just located at the top of the bead threading rod, so that the spacer beads carried on the placement groove naturally fall and penetrate into the bead threading rod, automatically completing the clamping and releasing actions of the spacer beads, and completing the automatic bead threading operation.
[0019] In summary, the device simplifies the four manual knife threading operations, namely, taking the knife, threading the knife, taking the beads and threading the beads, into two operations, namely, taking the knife and threading the knife, and automatically completes the bead taking and bead threading operations, thereby improving the efficiency of knife threading. At the same time, compared with the fully automatic knife threading device, the manufacturing cost of the device is low, and since the uniform specification interval beads are threaded by the device, and the blades of various shapes and sizes are handled manually, this combination is not restricted by the tool model and can flexibly adapt to the production characteristics of small batches and multiple models. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a structural schematic diagram of the lifting plate of the present invention in the upward limit position state;
[0021] Figure 2It is a side view schematic diagram of the lifting plate of the present invention in the upward limit position state;
[0022] Figure 3 It is a schematic diagram of the coordination of the stopper, the spacer bead and the pipe of the present invention;
[0023] Figure 4 It is a structural schematic diagram of the lifting plate of the present invention in the downward limit position state;
[0024] Figure 5 It is a side view schematic diagram of the lifting plate of the present invention in the downward limit position state.
[0025] In the figure: 1 pipeline, 2 pipeline fixing part, 3 spacer bead, 4 stopper, 5 tension spring, 6 navigation plate, 7 left clamping claw, 8 right clamping claw, 9 lifting plate, 10 rocker, 11 connecting plate, 12 motor, 13 bead threading rod. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0027] Reference Figure 1-Figure 5 , an automatic bead threading device suitable for PVD coating of tools with holes, comprising:
[0028] The pipeline 1 is fixedly connected to the pipeline fixing part 2 and the external frame of the pipeline fixing part 2.
[0029] The spacer beads 3 are all oblong beads with hollow through holes, and the spacer beads 3 are coaxially arranged in the pipe 1 along the long axis direction of the hole diameter.
[0030] The automatic bead threading mechanism includes a shifting assembly, a driving assembly, a navigation plate 6, a lifting plate 9, a clamping assembly and a bead threading rod 13. The shifting assembly is connected to the pipe fixing part 2. A shifting groove is provided at the bottom of the pipe 1. The gap at the output end of the shifting assembly extends into the pipe 1 through the shifting groove and abuts against the bottom of the spacer bead 3. The driving assembly is installed on the external frame. The navigation plate 6 is fixedly connected to the external frame between the driving assembly and the pipe fixing part 2. The output end of the driving assembly is connected to the lifting plate 9. The navigation plate 6 and the lifting plate 9 are connected to the clamping assembly. The navigation plate 6 and the lifting plate 9 are slidably matched in the vertical direction through the clamping assembly. When the lifting plate 9 moves upward, its top abuts against the input end of the shifting assembly. The bead threading rod 13 is fixedly connected to the external frame and is coaxially arranged with the pipe 1. When the output end of the clamping assembly moves upward, it clamps and matches with the spacer bead 3 dropped from the bottom of the pipe 1, and when it moves downward, it is coaxially matched with the top of the bead threading rod 13. The bead threading rod 13 is coaxially matched with the hollow through hole of the spacer bead 3.
[0031] The shifting assembly includes a stopper 4 and a tension spring 5. A rotating seat is fixedly connected to the pipe fixing member 2, and a rotating shaft is coaxially fixedly connected to the rotating seat. The stopper 4 is rotatably connected to the rotating shaft. The bottom end of the stopper 4 extends into the bottom of the pipe 1 through the shifting groove. A tension spring 5 is fixedly connected between the bottom of the stopper 4 and the pipe fixing member 2, and the top of the stopper 4 is located directly above the lifting plate 9.
[0032] The tension spring 5 is initially in a tensioned state, wherein the bottom of the stopper 4 abuts against the top of the deflection groove.
[0033] The driving assembly includes a rocker 10, a connecting plate 11 and a motor 12. The motor 12 is installed on an external frame. The output end of the motor 12 is fixedly connected to the rocker 10. The rocker 10 is L-shaped. The top of the rocker 10 is fixedly connected to the output end of the motor 12. The bottom of the connecting plate 11 is fixedly connected to the top of the lifting plate 9, and a transverse track groove is opened on the top. The bottom end of the rocker 10 is connected to the transverse track groove in a sliding and rotatable manner.
[0034] The clamping assembly includes a left clamping claw 7 and a right clamping claw 8, and two vertical track grooves are provided on the navigation plate 6. The top length directions of the two vertical track grooves are parallel to the axial direction of the pipeline 1, and the bottoms are arc-shaped, wherein the two arc shapes are symmetrically arranged, and the bottoms are opened outward, and a sliding connection groove is provided at the bottom of the lifting plate 9, and the sliding connection groove is perpendicular to the axial direction of the pipeline 1 in length. The left clamping claw 7 and the right clamping claw 8 both include an end rod and a clamping block fixedly connected to the end rod, and the two end rods are slidably connected in the two vertical track grooves one by one, and are both slidably connected in the sliding connection grooves, and placement grooves are provided on opposite sides of the two clamping blocks, wherein when the two clamping blocks are located above the vertical track grooves, the spacing between the two placement grooves is less than the maximum diameter of the spacer bead 3, and when the two clamping blocks are located below the vertical track grooves, the spacing between the two placement grooves is greater than the maximum diameter of the spacer bead 3.
[0035] When working, in the initial state, under the elastic force of the tension spring 5, the bottom end of the stopper 4 cooperates with the inner wall of the pipe 1 to carry the spacer beads 3, and a plurality of spacer beads 3 are coaxially arranged in the pipe 1 along the long axis direction of their hollow through holes;
[0036] When threading beads, the motor 12 is started, and the output end of the motor 12 drives the rocker 10 to rotate. The end of the rocker 10 away from the motor 12 cooperates with the transverse track groove on the top of the connecting plate 11. Since the lifting plate 9 is restricted by the clamping assembly and the navigation plate 6 to move in the vertical direction, the connecting plate 11 fixedly connected to the lifting plate 9 is restricted by this. Therefore, under the drive of the motor 12 and the rocker 10, the connecting plate 11 reciprocates in the vertical direction, and the movement of the connecting plate 11 drives the lifting plate 9 to reciprocate in the vertical direction;
[0037] During the upward movement of the lifting plate 9, under the restriction of the sliding connection groove, the left clamping claw 7 and the right clamping claw 8 move upward along the two vertical track grooves. When the left clamping claw 7 and the right clamping claw 8 pass through the bottom of the arc-shaped vertical track groove, the left clamping claw 7 and the right clamping claw 8 approach each other, so that the placement grooves on the two are close to each other. At this time, the distance between the two placement grooves is smaller than the maximum diameter of the spacer bead 3, which is convenient for the subsequent carrying of the spacer bead 3;
[0038] When the lifting plate 9 moves upward to the limit position, the lifting plate 9 pushes the top of the stopper 4 upward, overcomes the elastic force of the tension spring 5, and makes the stopper 4 rotate around the rotating shaft, so that the bottom end of the stopper 4 escapes from the inside of the pipe 1, and the stopper 4 no longer carries the spacer bead 3. At the same time, the left clamping claw 7 and the right clamping claw 8 just move to the bottom end of the pipe 1, so that the lowest spacer bead 3 falls steadily on the placement grooves of the left clamping claw 7 and the right clamping claw 8;
[0039] When the lifting plate 9 moves downward, the lifting plate 9 leaves the stopper 4. Under the elastic force of the tension spring 5, the stopper 4 rotates and resets. The bottom end of the stopper 4 extends into the pipe 1 through the shifting groove again, forming a bearing effect on the second to last spacer bead 3 at the bottom, preventing the spacer bead 3 from falling directly, and forming a one-by-one material feeding operation of the spacer bead 3.
[0040] When the lifting plate 9 moves downward to the limit position, the left clamping claw 7 and the right clamping claw 8 enter the bottom of the arc-shaped vertical track groove, and the left clamping claw 7 and the right clamping claw 8 move away from each other, so that the placement grooves on the two are separated from each other. At this time, the distance between the two placement grooves is greater than the maximum diameter of the spacer bead 3. At the same time, the left clamping claw 7 and the right clamping claw 8 are just located at the top of the bead threading rod 13, so that the spacer bead 3 carried on the placement groove naturally falls and penetrates into the bead threading rod 13, completing the bead threading operation;
[0041] Then, under the operation of the automatic beading mechanism, the stacked spacer beads 3 in the pipe 1 are automatically threaded onto the beading rod 13 one by one, thus completing the automatic beading operation.
[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.
Claims
1. An automatic bead threading device suitable for PVD coating of tools with holes, characterized in that: include: A pipeline (1), wherein the pipeline (1) is fixedly connected to a pipeline fixing member (2), and the pipeline fixing member (2) is on an external frame; Spacer beads (3), wherein the plurality of spacer beads (3) are all oblong beads with hollow through holes, and the plurality of spacer beads (3) are coaxially arranged in the pipe (1) along the long axis direction of the hole diameter; An automatic bead threading mechanism, the automatic bead threading mechanism comprising a shifting assembly, a driving assembly, a navigation plate (6), a lifting plate (9), a clamping assembly and a bead threading rod (13), the shifting assembly being connected to a pipe fixing member (2), a shifting groove being provided at the bottom of the pipe (1), a gap at the output end of the shifting assembly extending into the pipe (1) through the shifting groove and abutting against the bottom of a spacer bead (3), the driving assembly being mounted on an external frame, the navigation plate (6) being fixedly connected to the external frame between the driving assembly and the pipe fixing member (2), the lifting plate (9) being connected to the output end of the driving assembly, A clamping assembly is connected to the navigation plate (6) and the lifting plate (9), and the navigation plate (6) and the lifting plate (9) are slidably matched in the vertical direction through the clamping assembly. When the lifting plate (9) moves upward, its top abuts against the input end of the toggle assembly. The bead threading rod (13) is fixedly connected to the external frame and is coaxially arranged with the pipeline (1). When the output end of the clamping assembly moves upward, it clamps and matches with the spacer beads (3) dropped from the bottom of the pipeline (1), and when it moves downward, it is coaxially matched with the top of the bead threading rod (13). The bead threading rod (13) is coaxially matched with the hollow through hole of the spacer beads (3).
2. The automatic bead threading device for PVD coating of a tool with a hole according to claim 1, characterized in that: in: The shifting block assembly comprises a block (4) and a tension spring (5); a rotating seat is fixedly connected to the pipe fixing member (2); a rotating shaft is coaxially fixedly connected to the rotating seat; the block (4) is rotatably connected to the rotating shaft; the bottom end of the block (4) extends into the bottom of the pipe (1) through a shifting block groove; a tension spring (5) is fixedly connected between the bottom of the block (4) and the pipe fixing member (2); and the top of the block (4) is located directly above the lifting plate (9).
3. The automatic bead threading device for PVD coating of a tool with a hole according to claim 2, characterized in that: in: The tension spring (5) is initially in a tensioned state, wherein the bottom of the stopper (4) abuts against the top of the deflection groove.
4. The automatic bead threading device for PVD coating of a tool with a hole according to claim 1, characterized in that: in: The driving assembly comprises a rocker (10), a connecting plate (11) and a motor (12); the motor (12) is mounted on an external frame; the output end of the motor (12) is fixedly connected to the rocker (10); the rocker (10) is L-shaped; the top of the rocker (10) is fixedly connected to the output end of the motor (12); the bottom of the connecting plate (11) is fixedly connected to the top of the lifting plate (9); a transverse track groove is provided on the top; the bottom end of the rocker (10) is slidably and rotatably connected in the transverse track groove.
5. The automatic bead threading device for PVD coating of a tool with a hole according to claim 1, characterized in that: in: The clamping assembly comprises a left clamping claw (7) and a right clamping claw (8), and two vertical track grooves are provided on the navigation plate (6), the top lengths of the two vertical track grooves are parallel to the axial direction of the pipeline (1), and the bottoms are arc-shaped, wherein the two arc shapes are symmetrically arranged, and the bottoms are outwardly opened, and a sliding connection groove is provided at the bottom of the lifting plate (9), and the sliding connection groove is perpendicular to the axial direction of the pipeline (1), and the left clamping claw (7) and the right clamping claw (8) both comprise an end rod and a clamping block fixedly connected to the end rod, and the two end rods are slidably connected in the two vertical track grooves one by one, and are both slidably connected in the sliding connection grooves, and the two clamping blocks are provided with placement grooves on opposite sides, wherein when the two clamping blocks are located above the vertical track grooves, the spacing between the two placement grooves is less than the maximum diameter of the spacer bead (3), and when the two clamping blocks are located below the vertical track grooves, the spacing between the two placement grooves is greater than the maximum diameter of the spacer bead (3).