Embroidery drill and control method

Abstract

The invention relates to an embroidery drill and a control method, the embroidery drill comprises a drill body, a clamping disc and an embroidery needle, the drill body comprises a stator and a rotor, and the rotor rotates relative to the stator; the clamping disc is connected to the rotor; the embroidery needle comprises a needle cylinder and a needle tip located at the end of the needle cylinder, the needle cylinder is partially connected to the clamping disc, and the clamping disc drives the embroidery needle to rotate at a high speed; wherein the axial direction of the embroidery needle serves as the first direction, the radial direction of the embroidery needle serves as the second direction, and the needle tip abuts against the workpiece in the first direction, so that a needle hole is formed in the workpiece. According to the embroidery diamond, the embroidery needle comprises the needle column body and the needle tip located at the end of the needle column body, the needle column body is partially connected to the clamping disc, the clamping disc drives the embroidery needle to rotate at a high speed, and the axial direction of the embroidery needle is the first direction, so that when the needle tip abuts against the workpiece in the first direction, the embroidery needle rotates at a high speed and makes contact with the workpiece to generate friction heat; the needle point of the embroidery needle applies pressure and is inserted into the workpiece, so that a needle hole is formed in the workpiece.

Description

Technical Field

[0001] The invention relates to the technical field of precision machining, and in particular to an embroidery drill and a control method thereof. Background Art

[0002] Embroidery needles are very common in daily necessities and are generally used to mend clothes. However, there is no relevant literature record of using embroidery needles for industrial processing, especially for drilling and cutting for precision processing. Since the basic structure of an embroidery needle is composed of a needle tip and a needle cylinder, a part of the needle cylinder is clamped by a movable chuck of a hand drill or a drill table, so that part of the needle cylinder and the needle tip are exposed under the hand drill. The needle tip acts on the surface of the plastic part, and the hand drill or the drill table is started to drive the embroidery needle into a high-speed rotation state. The needle tip abuts against the surface of the plastic part and rubs, generating high-temperature friction heat. The heat accumulates on the surface of the plastic part in contact with the needle tip, and the surface of the plastic part will appear molten, that is, a local softening phenomenon. The needle tip gradually abuts against the inside of the plastic part until the workpiece is penetrated, that is, a pinhole is processed in the plastic part.

[0003] When the embroidery needle penetrates the plastic part, the needle cylinder is installed on the plastic part, the embroidery needle is kept in a high-speed rotating state, and a force is slowly applied laterally to move the hand drill or drill table. Since the needle cylinder in contact with the inside of the plastic part generates high-temperature friction heat when rotating at a high speed, a micro-range thermal melting and softening phenomenon is formed at the drilling hole. When the lateral pressure acts on the molten plastic on one side of the thermal melting, the plastic will be pressed to the side, so that the needle cylinder can be used to cut the plastic part in a high-speed rotating state;

[0004] Therefore, precise drilling and cutting of workpieces can be achieved by rotating the embroidery needle at high speed. Summary of the invention

[0005] The first object of the present invention is to provide an embroidery drill, which is intended to achieve precise drilling and cutting of a workpiece by rotating an embroidery needle at high speed.

[0006] In order to solve the above technical problems, an embroidery drill is provided, comprising a drill body, a clamping disk, and an embroidery needle, wherein the drill body comprises a stator and a rotor, and the rotor rotates relative to the stator; the clamping disk is connected to the rotor; the embroidery needle comprises a needle cylinder and a needle tip located at the end of the needle cylinder, and the needle cylinder is partially connected to the clamping disk, and the clamping disk drives the embroidery needle to rotate at a high speed; wherein the axial direction of the embroidery needle is defined as a first direction, and the radial direction of the embroidery needle is defined as a second direction, and the needle tip abuts against a workpiece along the first direction to form a needle hole on the workpiece.

[0007] Further, when the needle cylinder penetrates the workpiece, the embroidery needle is driven to move along the second direction, so that the needle cylinder moves laterally to cut the workpiece.

[0008] Furthermore, the needle tip rotates on the workpiece to generate friction heat, and when the surface of the workpiece reaches a molten and softened state, the embroidery needle is pushed along the first direction so that the needle tip gradually tapers into and penetrates the workpiece.

[0009] Furthermore, the embroidery needle is maintained to rotate at a high speed and is pulled out along the first direction, so that the needle hole is formed on the workpiece.

[0010] Furthermore, the maximum static friction force of the clamping disk on the needle cylinder is greater than the rotational friction force of the workpiece on the embroidery needle.

[0011] Furthermore, the needle column generates friction heat when rotating on the inner wall of the workpiece, so that the inner wall of the workpiece is in a molten and softened state. When the needle column applies pressure along the second direction, a notch is formed in the workpiece along the second direction.

[0012] Further, when the needle cylinder is advanced along the second direction, the needle cylinder forms a cutting path along the second direction at the notch to cut the workpiece.

[0013] Furthermore, the rotation speed of the embroidery needle is positively correlated with the advancement speed in the first direction and the second direction respectively.

[0014] The second object of the present invention is to provide an embroidery drill control method, aiming to provide a control method for high-speed rotating embroidery needles to achieve precise drilling and cutting of workpieces.

[0015] In order to solve the above technical problems, an embroidery drill control method is provided, which is applied to the above embroidery drill, and comprises the steps of:

[0016] S1, placing at least 1 / 3 of the needle cylinder in the clamping plate;

[0017] S2, the clamping disk clamps the needle cylinder;

[0018] S3, pre-starting, the clamping disk drives the embroidery needle to rotate at high speed, observes the radial runout of the embroidery needle when rotating, and adjusts the coaxiality of the embroidery needle and the clamping disk;

[0019] S4, testing for slippage, placing the needle tip against the surface of the workpiece, starting the clamping plate at a low speed to drive the embroidery needle to rotate, and testing whether there is slippage between the embroidery needle and the clamping plate;

[0020] S5, melting and punching, the clamping disk is started at high speed to drive the embroidery needle to rotate at high speed, and then the needle tip is slowly brought close to the surface of the workpiece and abutted against it. When the surface of the workpiece is in a molten state, the embroidery needle is pushed along the first direction to make the needle tip penetrate the workpiece;

[0021] S6, forming a needle hole, maintaining the clamping disk to drive the embroidery needle to rotate at a high speed, and when the needle cylinder penetrates the workpiece, pulling out the embroidery needle along the first direction to form the needle hole on the workpiece.

[0022] Furthermore, after the needle column penetrates the workpiece, the method further comprises the following steps:

[0023] S7, cutting the workpiece, maintaining the clamping disk to drive the embroidery needle to rotate at a high speed, and when the needle cylinder penetrates the workpiece, the embroidery needle is pushed along the second direction, and the needle cylinder cuts the workpiece along the cutting path.

[0024] Implementing the embodiments of the present invention will have the following beneficial effects:

[0025] 1. The embroidery drill in the first embodiment includes a needle cylinder and a needle tip at the end of the needle cylinder. Part of the needle cylinder is connected to a clamping disk. The clamping disk drives the embroidery needle to rotate at a high speed. The axial direction of the embroidery needle is a first direction. When the needle tip abuts against the workpiece along the first direction, friction heat is generated by the high-speed rotation of the embroidery needle and the contact with the workpiece, thereby partially melting the workpiece. The needle tip of the embroidery needle applies pressure to penetrate into the workpiece, so that a needle hole is formed on the workpiece.

[0026] 2. The embroidery drill in the first embodiment, since the radial direction of the embroidery needle is the second direction, when the needle cylinder penetrates the workpiece, the embroidery needle is driven to move along the second direction, so that the high-speed rotation of the embroidery needle generates friction heat between the needle cylinder and the inner wall of the workpiece, so that the inner wall of the workpiece forms a molten softening state, and when pressure is applied and pushed along the second direction on the needle cylinder, the needle cylinder forms a cutting path along the second direction to cut the workpiece;

[0027] 3. In the embroidery drill of the first embodiment, since the rotation speed of the embroidery needle is positively correlated with the advancing speed of the embroidery needle in the first direction, increasing the rotation speed of the embroidery needle can significantly improve the efficiency of drilling holes on the workpiece; since the rotation speed of the embroidery needle is positively correlated with the advancing speed of the embroidery needle in the second direction, increasing the rotation speed of the embroidery needle can significantly improve the efficiency of cutting on the workpiece;

[0028] 4. The embroidery drill control method in the second embodiment is that since at least 1 / 3 of the needle cylinder is clamped by the clamping disk, the clamping disk is pre-started to drive the embroidery needle to rotate at high speed, so as to observe the radial runout of the embroidery needle when rotating, and then adjust the coaxiality of the embroidery needle and the clamping disk; then the needle tip is abutted against the surface of the workpiece, and the clamping disk is started at a low speed to drive the embroidery needle to rotate, so as to test whether there is a slipping phenomenon between the embroidery needle and the clamping disk; after determining that there is no abnormality, the clamping disk is started at a high speed to drive the embroidery needle to rotate at high speed, and then the needle tip is slowly brought close to the surface of the workpiece, so that when the surface of the workpiece is melted and softened, the embroidery needle is pushed along the first direction, so that the needle tip gradually penetrates the workpiece; when the needle cylinder penetrates the workpiece, the clamping disk is maintained to drive the embroidery needle to rotate at high speed, and the embroidery needle is pulled out along the first direction, so that a needle hole is formed in the workpiece;

[0029] 5. In the embroidery drill control method of the second embodiment, when the needle cylinder penetrates the workpiece, the clamping plate is maintained to drive the embroidery needle to rotate at a high speed, and the embroidery needle is pushed along the second direction, so that the needle cylinder cuts the workpiece along the cutting path. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 This is a schematic diagram of the structure of the embroidery drill according to the first embodiment of the present invention;

[0032] Figure 2 This is an exploded schematic diagram of the embroidery drill according to the first embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram of the structure of an embroidery needle according to Embodiment 1 of the present invention;

[0034] Figure 4 This is a schematic diagram of the initial state of the embroidery drill punching a workpiece according to the first embodiment of the present invention;

[0035] Figure 5 This is a schematic diagram of the final state of the embroidery drill punching a workpiece according to the first embodiment of the present invention;

[0036] Figure 6 This is a schematic diagram of the state of the embroidery drill cutting a workpiece according to the first embodiment of the present invention;

[0037] Figure 7 The figure is a schematic diagram of the process of processing a workpiece using an embroidery drill according to the second embodiment of the present invention.

[0038] Among them: 100, embroidery drill; 110, drill body; 111, stator; 112, rotor; 120, clamping plate; 130, embroidery needle; 131, needle cylinder; 132, needle tip; 140, workpiece; 141, needle hole; 142, notch; 143, cutting path. DETAILED DESCRIPTION

[0039] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0040] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0042] Embodiment 1

[0043] Please refer to Figure 1-Figure 7The first embodiment of the present invention provides an embroidery drill 100, including a drill body 110, a clamping disk 120, and an embroidery needle 130. The drill body 110 includes a stator 111 and a rotor 112, and the rotor 112 rotates relative to the stator 111; the clamping disk 120 is connected to the rotor 112; the embroidery needle 130 includes a needle cylinder 131 and a needle tip 132 located at the end of the needle cylinder 131, and the needle cylinder 131 is partially connected to the clamping disk 120, and the clamping disk 120 drives the embroidery needle 130 to rotate at a high speed; wherein, the axial direction of the embroidery needle 130 is defined as a first direction, and the radial direction of the embroidery needle 130 is defined as a second direction, and the needle tip 132 abuts against a workpiece 140 along the first direction to form a needle hole 141 on the workpiece 140. In specific applications, the embroidery needle 130 is easily available on the market, which reduces the processing and manufacturing costs. For example, the material of the embroidery needle 130 can be carbon steel, and the specifications can be selected, for example, 22# (0.95*40mm), 24# (0.75*37mm), and 26# (0.6*34mm). The selected workpiece 140 is a plastic part with a thickness of less than or equal to 20mm. In particular, it is suitable for punching holes in 3D printed parts of PCB boards, substrates, plastic pipes, PLA resins, and ABS resins. Among them, the main material of the PCB board is the copper clad laminate, and the copper clad laminate (copper clad laminate) is composed of a substrate, copper foil, and an adhesive. The substrate is an insulating layer composed of a polymer synthetic resin and a reinforcing material; a layer of pure copper foil with high conductivity and good weldability is covered on the surface of the substrate, and the common thickness is 35~50 / ma; the copper clad laminate with copper foil covering one side of the substrate is called a single-sided copper clad laminate, and the copper clad laminate with copper foil covering both sides of the substrate is called a double-sided copper clad laminate; whether the copper foil can be firmly covered on the substrate is completed by the adhesive. Commonly used copper clad laminates have three thicknesses: 1.0 mm, 1.5 mm, and 2.0 mm. Taking the PCB board as an example, the needle tip 132 abuts against the PCB board along the first direction, the clamping plate 120 drives the embroidery needle 130 to rotate at a high speed, and the needle tip 132 contacts the substrate in the PCB to generate friction heat, causing the substrate to melt and soften, and then the needle tip 132 tapers into the PCB board to form a needle hole 141.

[0044] In a possible implementation, when the needle cylinder 131 penetrates the workpiece 140, the embroidery needle 130 is driven to move in the second direction, so that the needle cylinder 131 moves horizontally to cut the workpiece 140. In a specific application, since the needle tip 132 is located at one end of the needle cylinder 131, when the needle tip 132 gradually tapers into the workpiece 140, the needle cylinder 131 follows and enters the body of the workpiece 140, wherein the surface of the needle cylinder 131 rotates at a high speed and rubs against the inside of the workpiece 140 to generate heat, further making the inside of the workpiece 140 maintain a molten state, improving the smoothness of the needle tip 132 tapping into the workpiece 140, when the needle cylinder 131 penetrates the workpiece 140, the embroidery needle 130 is driven to move in the second direction, due to the heat generated by the friction between the surface of the needle cylinder 131 and the inside of the workpiece 140, the workpiece 140 in contact with the embroidery needle 130 in the second direction becomes molten and generates fluidity, and the needle cylinder 131 squeezes the molten material to both sides along the second direction to cut the workpiece 140.

[0045] In one possible embodiment, the needle tip 132 rotates on the workpiece 140 to generate friction heat.

[0046] When the surface of the workpiece 140 reaches a molten softened state, the embroidery needle 130 is pushed in the first direction so that the needle tip 132 gradually penetrates the workpiece 140. In a specific application, since the needle tip 132 rotates on the workpiece 140 to generate friction heat, it is worth noting that excessive force is not allowed to squeeze the embroidery needle 130 in the first direction to prevent the embroidery needle 130 from being damaged.

[0047] There is a possibility of bending, deformation or fracture. Pay attention to the surface of the workpiece 140 when it reaches the molten softening state.

[0048] The embroidery needle 130 is advanced in the first direction so that the needle tip 132 of the embroidery needle 130 gradually penetrates the workpiece 140 .

[0049] In a possible implementation, the embroidery needle 130 is kept rotating at a high speed and is pulled out along a first direction, so that a needle hole 141 is formed on the workpiece 140. In a specific application, after the embroidery needle 130 penetrates the workpiece 140, if the embroidery needle 130 stops rotating at a high speed, the temperature of the workpiece 140 and the embroidery needle 130 will gradually decrease, and the gap between the needle cylinder 131 and the surface of the workpiece 140 is almost negligible, and the resin is cooled and solidified on the needle cylinder 131, making it extremely difficult to cold-draw the embroidery needle 130, and there is even a possibility of the needle breaking. Therefore, it is necessary to maintain the high-speed rotation of the embroidery needle 130 and hot-pull the embroidery needle 130 along the first direction, so that the needle hole 141 is formed on the workpiece 140.

[0050] In a possible implementation, the maximum static friction force of the clamping disk 120 clamping the needle cylinder 131 is greater than the rotational friction force of the workpiece 140 on the embroidery needle 130. In a specific application, in order to prevent the embroidery needle 130 from slipping on the clamping disk 120, the maximum static friction force of the clamping disk 120 clamping the needle cylinder 131 is always greater than the rotational friction force of the workpiece 140 on the embroidery needle 130, that is, the clamping force of the clamping disk 120 on the needle cylinder 131 is increased, thereby preventing the embroidery needle 130 from rotating relative to the clamping disk 120, and ensuring that the clamping disk 120 drives the embroidery needle 130 to rotate at a high speed relative to the workpiece 140 to generate friction heat.

[0051] In a possible implementation, the needle cylinder 131 rotates on the inner wall of the workpiece 140 to generate frictional heat, so that the inner wall of the workpiece 140 is in a molten and softened state. When the needle cylinder 131 applies pressure along the second direction, the workpiece 140 forms a notch 142 along the second direction. In a specific application, since the needle cylinder 131 rotates on the inner wall of the workpiece 140 at a high speed to generate frictional heat, the inner wall of the workpiece 140 is in a molten and softened state. When the needle cylinder 131 applies pressure along the second direction, the workpiece 140 forms a notch 142 along the second direction.

[0052] When pressure is applied along the second direction, a notch 142 is formed on the workpiece 140 along the second direction, and the notch 142 serves as a guide for cutting the workpiece 140 .

[0053] In a possible implementation manner, when the needle cylinder 131 is pushed along the second direction, the needle cylinder 131

[0054] A cutting path 143 is formed along the second direction at the notch 142 to cut the workpiece 140. In a specific application, since the needle cylinder 131 rotates at a high speed along the second direction, the inner wall of the workpiece 140 is in a molten and softened state. It is worth noting that excessive force is not allowed to squeeze the embroidery needle 130 along the second direction at this time to prevent the embroidery needle 130 from bending, deforming or breaking. When the second direction of the workpiece 140 reaches a molten and softened state, the embroidery needle 130 is pushed along the second direction, so that the needle cylinder 131 forms a cutting path 143 along the second direction at the notch 142 to cut the workpiece 140. The cutting path can be a given straight line, broken line or arc path.

[0055] In a possible implementation, the rotation speed of the embroidery needle 130 is positively correlated with the advancement speed in the first direction and the second direction, respectively. In a specific application, when the embroidery needle 130 rotates at a relatively low speed and advances rapidly in the first direction, the needle tip 132 will form a small bulge on the surface when penetrating the workpiece 140, and there is stress concentration at this small bulge. In a particularly applicable scenario, for example, PCB drilling processing requires stress dispersion to prevent local deformation, which requires avoiding this bulge as much as possible. However, if the embroidery needle 130 rotates at a high speed and advances slowly in the first direction, it is not conducive to improving production efficiency. Therefore, the rotation speed of the embroidery needle 130 is set to be positively correlated with the advancement speed in the first direction; and when the embroidery needle 130 rotates at a relatively low speed and advances rapidly in the first direction, when the needle cylinder 131 cuts the workpiece 140, the incision stress of the workpiece 140 is concentrated and uneven. Similarly, the rotation speed of the embroidery needle 130 needs to be set to be positively correlated with the advancement speed in the second direction.

[0056] Embodiment 2

[0057] The subject matter protected by the second embodiment is different from that of the first embodiment, and the specific differences are as follows:

[0058] Please refer to Figure 1-Figure 3 Embodiment 2 of the present invention provides a method for controlling an embroidery drill 100, which is applied to the above-mentioned embroidery drill 100 and includes the following steps:

[0059] S1, placing at least 1 / 3 of the needle cylinder 131 in the clamping plate 120;

[0060] S2, the clamping plate 120 clamps the needle cylinder 131;

[0061] S3, pre-starting, the clamping plate 120 drives the embroidery needle 130 to rotate at high speed, observe the radial runout of the embroidery needle 130 when rotating, and adjust the coaxiality of the embroidery needle 130 and the clamping plate 120;

[0062] S4, testing for slippage, placing the needle tip 132 against the surface of the workpiece 140, starting the clamping plate 120 at a low speed to drive the embroidery needle 130 to rotate, and testing whether there is slippage between the embroidery needle 130 and the clamping plate 120;

[0063] S5, melting and punching, the clamping plate 120 is started at high speed to drive the embroidery needle 130 to rotate at high speed, and then the needle tip 132 is slowly brought close to the surface of the workpiece 140, and when the surface of the workpiece 140 is in a molten state, the embroidery needle 130 is pushed along the first direction so that the needle tip 132 penetrates the workpiece 140;

[0064] S6. Form the needle hole 141, maintain the clamping disk 120 to drive the embroidery needle 130 to rotate at a high speed, and when the needle cylinder 131 penetrates the workpiece 140, pull out the embroidery needle 130 along the first direction to form the needle hole 141 on the workpiece 140. In a specific application, since at least 1 / 3 of the needle cylinder 131 is clamped by the clamping disk 120, the clamping disk 120 is pre-started to drive the embroidery needle 130 to rotate at a high speed, so as to observe the radial runout of the embroidery needle 130 during rotation, and then adjust the coaxiality of the embroidery needle 130 and the clamping disk 120; then the needle tip 132 is abutted against the surface of the workpiece 140, and the clamping disk 120 is started at a low speed to drive the embroidery needle 130 to rotate, so as to test whether there is slippage between the embroidery needle 130 and the clamping disk 120; and confirm that there is no abnormality. After that, the clamping disk 120 is started at high speed to drive the embroidery needle 130 to rotate at high speed, and then the needle tip 132 is slowly approached and abutted against the surface of the workpiece 140, so that when the surface of the workpiece 140 is melted and softened, the embroidery needle 130 is pushed along the first direction, and then the needle tip 132 gradually penetrates the workpiece 140; when the needle cylinder 131 penetrates the workpiece 140, the clamping disk 120 is maintained to drive the embroidery needle 130 to rotate at high speed, and the embroidery needle 130 is pulled out along the first direction, so that a needle hole 141 is formed in the workpiece 140.

[0065] In a possible implementation manner, after the needle column 131 penetrates the workpiece 140, the following steps are further included:

[0066] S7, cutting the workpiece 140, maintaining the clamping plate 120 to drive the embroidery needle 130 to rotate at a high speed, and when the needle cylinder 131 penetrates the workpiece 140, the embroidery needle 130 is pushed along the second direction, and the needle cylinder 131 cuts the workpiece 140 along the cutting path 143. In a specific application, after the needle cylinder 131 penetrates the workpiece 140, the clamping plate 120 is maintained to drive the embroidery needle 130 to rotate at a high speed, so that the inner wall of the workpiece 140 is in a molten state, and then the embroidery needle 130 is pushed along the second direction, so that the needle cylinder 131 cuts the workpiece 140 along the cutting path 143.

[0067] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An embroidery drill, characterized in that: include: A drill body, the drill body comprising a stator and a rotor, the rotor rotating relative to the stator; a clamping plate connected to the rotor; An embroidery needle, the embroidery needle comprising a needle cylinder and a needle tip at the end of the needle cylinder, the needle cylinder is partially connected to the clamping disk, and the clamping disk drives the embroidery needle to rotate at high speed; The axial direction of the embroidery needle is defined as a first direction, the radial direction of the embroidery needle is defined as a second direction, and the needle tip abuts against a workpiece along the first direction to form a needle hole on the workpiece.

2. The embroidery drill according to claim 1, characterized in that: When the needle cylinder penetrates the workpiece, the embroidery needle is driven to move along the second direction, so that the needle cylinder moves laterally to cut the workpiece.

3. The embroidery drill according to claim 1, characterized in that: The needle tip rotates on the workpiece to generate friction heat. When the surface of the workpiece reaches a molten and softened state, the embroidery needle is pushed along the first direction so that the needle tip gradually tapers into and penetrates the workpiece.

4. The embroidery drill according to claim 3, characterized in that: The embroidery needle is maintained to rotate at a high speed and is pulled out along the first direction to form the needle hole on the workpiece.

5. The embroidery drill according to claim 3 or 4, characterized in that: The maximum static friction force of the clamping disk on the needle cylinder is greater than the rotational friction force of the workpiece on the embroidery needle.

6. The embroidery drill according to claim 2, characterized in that: The needle column rotates on the inner wall of the workpiece to generate friction heat, so that the inner wall of the workpiece is in a molten and softened state. When the needle column applies pressure along the second direction, a notch is formed on the workpiece along the second direction.

7. The embroidery drill according to claim 6, characterized in that: When the needle cylinder is advanced along the second direction, the needle cylinder forms a cutting path along the second direction in the notch to cut the workpiece.

8. The embroidery drill according to claim 2, characterized in that: The rotation speed of the embroidery needle is positively correlated with the advancement speed in the first direction and the second direction respectively.

9. An embroidery drill control method, characterized in that: The embroidery drill according to any one of claims 1 to 8 comprises the steps of: S1, placing at least 1 / 3 of the needle cylinder in the clamping plate; S2, the clamping disk clamps the needle cylinder; S3, pre-starting, the clamping disk drives the embroidery needle to rotate at high speed, observes the radial runout of the embroidery needle when rotating, and adjusts the coaxiality of the embroidery needle and the clamping disk; S4, testing for slippage, placing the needle tip against the surface of the workpiece, starting the clamping plate at a low speed to drive the embroidery needle to rotate, and testing whether there is slippage between the embroidery needle and the clamping plate; S5, melting and punching, the clamping disk is started at high speed to drive the embroidery needle to rotate at high speed, and then the needle tip is slowly brought close to the surface of the workpiece and abutted against it. When the surface of the workpiece is in a molten state, the embroidery needle is pushed along the first direction to make the needle tip penetrate the workpiece; S6, forming a needle hole, maintaining the clamping disk to drive the embroidery needle to rotate at a high speed, and when the needle cylinder penetrates the workpiece, pulling out the embroidery needle along the first direction to form the needle hole on the workpiece.

10. The embroidery drill control method according to claim 9, characterized in that: After the needle column penetrates the workpiece, the process further comprises the following steps: S7, cutting the workpiece, maintaining the clamping disk to drive the embroidery needle to rotate at a high speed, and when the needle cylinder penetrates the workpiece, the embroidery needle is pushed along the second direction, and the needle cylinder cuts the workpiece along the cutting path.

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