Striker assembly and installation method thereof, point striking equipment and use method thereof

Abstract

The invention relates to the technical field of micro-structure machining, in particular to a firing pin assembly, a mounting method of the firing pin assembly, point striking equipment and a using method of the point striking equipment. A striker assembly includes: a first portion configured to move in a first direction by receiving a driving force from a piezoelectric actuator, the first portion including a first magnetic member; and the second part is connected to the first part in a manner of being capable of moving along the first direction and comprises a firing pin and a second magnetic piece, and the second magnetic piece and the first magnetic piece have magnetic repulsive force in the first direction.

Description

Technical Field

[0001] The present application relates to the field of microstructure processing technology, and in particular to a striker assembly and an installation method thereof, a strike point device and a method of using the same. Background Art

[0002] In the fields of optical components, materials science and microelectronics engineering, the manufacturing technology of microstructures has become a hot topic of research and application. Microstructures refer to structures with a scale of micrometers or even nanometers. These structures have important application value in optics, electronics, mechanics and other high-tech fields. In the process of manufacturing microstructures, it is necessary to accurately control the parameters such as the shape, size and azimuth of the microstructures.

[0003] In the existing technology, methods such as photolithography, etching technology and deposition technology are usually used to manufacture microstructures. Among these methods, photolithography is one of the most commonly used methods. Photolithography is to project the designed pattern onto a photosensitive material through a photolithography machine, and then etch the photosensitive material through a chemical reaction to form a microstructure. This method can achieve high-precision microstructure manufacturing, but can only produce planar microstructures. However, there are some problems and shortcomings in the process of making microstructures in the existing technology. First, the existing technology can only produce planar microstructures, and cannot produce microstructures with specific azimuth angles. This limits the application scope of microstructures in optics, electronics and other high-tech fields. Secondly, in the process of making microstructures, the existing technology requires the use of a large number of photolithography machines and etching equipment, which not only increases the manufacturing cost, but also prolongs the manufacturing cycle.

[0004] Single-point diamond ultra-precision machining technology is a method of using a diamond striker as a cutting tool to perform high-precision machining of materials on a very small scale. Diamond has become an ideal choice for micro-nano structure machining due to its extremely high hardness and wear resistance. Through a precise control system and tiny cutting force, this technology can achieve micron or even nanometer precision production on mirror materials.

[0005] As an optical plate that controls light transmission and changes the path of light propagation, the light-guiding microstructure inside the light guide plate can be made using single-point diamond processing technology. The processing method is to use the impact needle of the single-point diamond impact device to impact the surface of the mold core, causing the mold core surface to dent and form a pit, and then transfer the pit on the mold core to the optical plate to make a light guide plate. However, in the existing single-point diamond impact device, the angle of the impact needle is fixed, and the light-facing surface of the manufactured light guide microstructure is also uniformly oriented, generally facing the direction of the incident light surface. This causes the light entering the light guide plate to encounter the light guide microstructure and be fixedly reflected in a specific direction, making the light directivity too high, resulting in bright spots or dark shadows in certain areas of the light guide plate, thereby affecting the overall light uniformity of the light guide plate, especially aggravating the dark shadows in the corners and middle waist area of ​​the light guide plate. Furthermore, the microstructure on the surface of the light guide plate is within a few microns to tens of microns, and the optical performance of microstructures of different depths varies greatly. Generally, if the depth difference between microstructures is more than 5%, it is considered to be a defective product. Therefore, in order to consider the depth consistency of the processed microstructure, high requirements are placed on the processing accuracy of the collision point equipment. Summary of the invention

[0006] In order to solve at least one of the above problems, the present application proposes a striker assembly and an installation method thereof, a strike point device and a use method thereof.

[0007] In a first aspect, a firing pin assembly is provided, comprising:

[0008] a first portion configured to move in a first direction by receiving a driving force from a piezoelectric actuator, the first portion comprising a first magnetic member;

[0009] The second part is connected to the first part in a manner that it can move along the first direction, and includes a striker and a second magnetic member, wherein the second magnetic member and the first magnetic member have a magnetic repulsion force in the first direction.

[0010] In some possible implementations, the first part includes:

[0011] a first base portion including a first guide hole extending in the first direction;

[0012] A first stopper, mounted on the first base, and adjustable relative to the mounting position of the first base along the first direction;

[0013] Wherein, the first magnetic member is mounted on the first base portion in a manner that it can move along the first direction, and abuts against the first limiting member in the negative direction of the first direction under the action of the magnetic repulsion force;

[0014] The second part includes:

[0015] A second base, comprising a first guide rod extending along the first direction and movably inserted into the first guide hole;

[0016] A second limiting member, mounted on the second base;

[0017] The second magnetic member is mounted on the second base portion in a manner that it can move along the first direction, and abuts against the second limiting member in a positive direction of the first direction under the action of the magnetic repulsion force.

[0018] In some possible embodiments, the first base includes an external threaded portion extending in the first direction around the periphery of the first guide hole, the first limiting member includes a threaded hole threadedly engaged with the external threaded portion, and the first limiting member is configured to adjust its installation position relative to the first base along the first direction by rotating around the first direction.

[0019] In some possible implementations, the first base includes:

[0020] a chamber connected with the first guide hole at the negative side of the first guide hole along the first direction and having a first cavity wall surface facing away from the first guide hole, wherein the first end of the first guide rod extends into the chamber through the first guide hole;

[0021] an assembly hole extending from the outer surface of the first base portion to the cavity;

[0022] The striker assembly also includes a first retaining spring that is clamped to the first end portion via the assembly hole. Under the action of the magnetic repulsion force, the first retaining spring abuts against the first cavity wall in the positive direction of the first direction, thereby preventing the first part and the second part from separating from each other.

[0023] In some possible implementations, the first limiting member can be adjusted to a position covering the assembly hole.

[0024] In some possible implementations, the first cavity wall surface is formed as a plane perpendicular to the first direction, the assembly hole penetrates from the outer surface of the first base to the cavity in a second direction perpendicular to the first direction, and has a first hole wall surface and a second hole wall surface arranged opposite to each other in the first direction, wherein the first hole wall surface faces the negative direction of the first direction and is coplanar with the first cavity wall surface;

[0025] The first clamping spring is configured to be clamped to the first end portion by moving along the second direction.

[0026] In some possible implementations, the following further includes:

[0027] a second guide rod extending along the first direction and connecting the first portion and the second portion in a manner allowing the first portion and the second portion to move relative to each other in the first direction, the second guide rod being spaced apart from the first guide rod when viewed along the first direction;

[0028] During installation of the striker assembly, after the first clip is clipped to the first end via the assembly hole, the first guide rod is rotated around the first direction by a specified angle so that the positions of the first clip and the assembly hole are offset from each other.

[0029] In some possible implementations, the second limiting member is mounted on the second base portion in a manner that allows it to move along the first direction, and the second portion further includes:

[0030] a second clamping spring, which is detachably clamped to the second base portion at the positive side of the second stopper along the first direction, and under the action of the magnetic repulsion force, the second stopper abuts against the second clamping spring in the positive direction of the first direction, thereby preventing the second stopper from being separated from the second portion;

[0031] The second stopper is configured to be sleeved on the second base by moving in the negative direction of the first direction before the second clamping spring is clamped to the second base, and to be separated from the second base by moving in the positive direction of the first direction when the second clamping spring is detached from the second base;

[0032] The second limiting member includes a second guide hole extending along the second direction, a portion of the second guide rod is detachably fixed to the first base, and another portion is movably inserted into the second guide hole.

[0033] In a second aspect, a method for installing the striker assembly according to the first aspect is provided, comprising:

[0034] The first clamping spring is clamped to the first end portion via the assembly hole;

[0035] Rotate the first guide rod around the first direction by a specified angle, thereby causing the positions of the first clamping spring and the assembly hole to be offset from each other;

[0036] The second guide rod is mounted to the striker assembly.

[0037] In a third aspect, a collision point device is proposed, comprising:

[0038] The striker assembly according to the first aspect;

[0039] The piezoelectric actuator has a power output end for providing the driving force;

[0040] second base;

[0041] A carriage is connected to the second base via a guide rail, the guide rail being configured to guide the carriage to move relative to the second base along the first direction, wherein the first part is connected to the carriage and configured to receive the driving force from the piezoelectric actuator via the carriage.

[0042] In some possible implementations, the power output end is configured to move the first part toward a positive direction of the first direction by pressing the slide, wherein the positive direction of the first direction points from the first part to the second part;

[0043] In some possible implementations, the following further includes:

[0044] a first base, the second base being mounted on the first base in a manner rotatable about a first axis, the first axis extending along the first direction;

[0045] The rotating drive component drives the rotating seat to rotate around the first axis.

[0046] The collision point device also includes:

[0047] The elastic member biases the sliding bracket toward the negative direction of the first direction.

[0048] In a fourth aspect, a method for using the collision point device according to the second aspect is provided, for processing a concave microstructure on a first surface of a target object, the method comprising:

[0049] When the striker is spaced apart from the first surface by a certain distance in the first direction, the piezoelectric actuator drives the striker to strike the first surface along the first direction via the carriage.

[0050] According to the striker assembly provided in the present application, a microstructure with high depth consistency can be easily processed on a target object. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present application, rather than limiting the present application.

[0052] Figure 1 It is a three-dimensional schematic diagram of the collision point device provided in an embodiment of the present application.

[0053] Figure 2 yes Figure 1 sectional view of .

[0054] Figure 3 is Figure 1 a schematic diagram of a part of

[0055] Figure 4 is Figure 1 a three-dimensional schematic diagram of the striker assembly in

[0056] Figure 5 is Figure 4 a cross-sectional view of

[0057] Figure 6 is Figure 4 an exploded view of

[0058] Figure 7 is Figure 4 a schematic diagram of a part of

[0059] Figure 8 a schematic diagram of the target object with microstructures processed according to an embodiment of the present application.

[0060] Fig. 9 a schematic diagram of the target object with microstructures processed according to the comparative example.

[0061] Fig.10 a flowchart of the assembly method of the striker assembly provided by an embodiment of the present application.

[0062] Fig.11 a flowchart of the usage method of the impact point device provided by an embodiment of the present application.

[0063] Fig.12 a flowchart of the usage method of the impact point device provided by an embodiment of the present application.

[0064] Explanation of reference numerals:

[0065] 1000 - striker assembly;

[0066] DR1 - first direction, DR2 - second direction, AX - first axis, DD - depth;

[0067] 100 - first part, 200 - second part;

[0068] 1 - first base;

[0069] 2 - outer cylinder, 2a - external thread part, 2b - chamber, 2b1 - first chamber wall surface, 2c - assembly hole, 2c1 - first hole wall surface, 2c2 - second hole wall surface;

[0070] 3 - inner cylinder, 3a - first guide hole;

[0071] 4 - first limiting member, 4a - threaded hole;

[0072] 5- first magnetic member;

[0073] 6-second base, 6a-first guide rod, 6a1-first end portion, 6b-connecting head;

[0074] 7-second limiting member, 7a-second guide hole;

[0075] 8- second magnetic member;

[0076] 9- first retaining spring;

[0077] 10- second retaining spring;

[0078] 11- Firing pin;

[0079] 12-Piezoelectric Actuator

[0080] 13-actuator body;

[0081] 14-Power ball head;

[0082] 15-slide;

[0083] 16-Guide rail;

[0084] 17- elastic member;

[0085] 18 - first base;

[0086] 19-seat plate;

[0087] 20-first bearing seat;

[0088] 21- second bearing seat;

[0089] 22- first bearing;

[0090] 23- second bearing;

[0091] 24 - second base;

[0092] 25- support bar;

[0093] 26- first end seat;

[0094] 27- second end seat;

[0095] 28-clamp arm;

[0096] 29-motor;

[0097] 30-motor bracket;

[0098] 31- coupling;

[0099] 32- second guide rod;

[0100] 33 - target object, 33a - first surface, 33b - microstructure. DETAILED DESCRIPTION

[0101] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme of the embodiment of the present application will be clearly and completely described below in conjunction with the drawings of the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, rather than all the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of this application. It can be understood that, in the absence of conflict, some technical means of the various embodiments described herein can be replaced or combined with each other.

[0102] In the description of this application, if there are terms such as "first", "second", etc., they are only used to distinguish the objects described and do not have any order or technical meaning. Therefore, an object defined as "first", "second", etc. may explicitly or implicitly include one or more of the objects, and, for example, the term "first element" itself does not mean the existence of the "second element", and the term "second element" itself does not mean the existence of the "first element". In addition, "one" or "a" and similar words do not indicate a quantity limitation, but rather indicate the existence of at least one, and "multiple" means not less than two.

[0103] In the description of the present application, the terms “including”, “having” indicate the existence of the described features, numbers, operations, elements and / or their combinations, but do not exclude the existence or addition of one or more other features, numbers, operations, elements and / or their combinations.

[0104] In the description of the present application, if there are similar terms such as "configured to" or "structured to", they can generally be interchanged with "having the ability to", "designed to", "used for" or "capable of", depending on the context.

[0105] In the description of the present application, reference to "one embodiment" or "some embodiments" etc. means that one or more embodiments of the present application include a particular feature, structure or characteristic described in conjunction with the embodiment. Thus, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. appearing in different places in the present specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways.

[0106] See also Figures 1 to 7 According to an embodiment of the present application, the impact point device provided includes a first base 18, a second base 24, a motor 29, a piezoelectric actuator 12 and a striker assembly 1000.

[0107] The first base 18 is generally in a U-shape, and includes a first bearing seat 20 and a second bearing seat 21 which are arranged opposite to each other and spaced from each other in the first direction DR1, and a seat plate 19 which is fastened to the first bearing seat 20 and the second bearing seat by bolts, and the first bearing 22 and the second bearing 23 are respectively held by the first bearing seat 20 and the second bearing seat 21. More specifically, the first bearing 22 is held by the first bearing seat 20 in a manner that its outer ring is fixedly engaged with the first bearing seat 20, and the second bearing 23 is held by the second bearing seat 21 in a manner that its outer ring is fixedly engaged with the second bearing seat 21, and the first bearing 22 and the second bearing 23 are coaxially arranged, and the axial directions of the two correspond to the first direction DR1. In practice, the first base 18, more specifically, is the seat plate 19 of the first base 18 which can be mounted on a machine tool and moved or rotated in one or more directions under the drive of the machine tool.

[0108] For the convenience of explaining the present technology, the direction from the first bearing seat 20 to the second bearing seat 21 is defined as the positive direction of the first direction DR1, and the direction from the second bearing seat 21 to the first bearing seat 20 is defined as the negative direction of the first direction DR1. In addition, the positive direction of the first direction DR1 also corresponds to the direction from the first magnetic member 5 to the second magnetic member 8, and the negative direction of the first direction DR1 corresponds to the direction from the second magnetic member 8 to the first magnetic member 5.

[0109] The second base 24 is connected to the first base 18 in a manner that allows it to rotate around a first axis AX, wherein the first axis AX extends along a first direction DR1 and is defined by a first bearing 22 and a second bearing 23. Specifically, the second base 24 is arranged between the first bearing seat 20 and the second bearing seat 21, and includes a first end seat 26 and a second end seat 27 that are arranged opposite to each other and spaced apart from each other in the first direction DR1, and two support bars 25 that fasten the first end seat 26 and the second end seat 27, respectively, wherein the first end seat 26 is engaged to the inner ring of the first bearing 22, and the second end seat 27 is engaged to the inner ring of the second bearing 23, and the two support bars 25 both extend along the first direction DR1 and are spaced apart from each other in a direction perpendicular to the first direction DR1 and arranged on both radial sides of the first axis AX, thereby forming a space for arranging the piezoelectric actuator 12 therebetween.

[0110] The motor 29 (an example of a power component) is fixed to the negative side of the first bearing seat 20 along the first direction DR1 via a motor bracket 30 in a substantially "X" shape, and the output shaft of the motor 29 (whose axis coincides with the first axis AX) is connected to the first end seat 26 via a coupling 31. Thus, the motor 29 can drive the second base 24 to rotate around the first direction DR1 (more specifically, the first axis AX extending along the first direction DR1), as a result, the impact angle of the striker 11 described below of the striker assembly 1000 on the target object 33 can be adjusted. The motor 29 is a servo motor.

[0111] The piezoelectric actuator 12 is arranged at the spaced apart space between the two supporting bars 25, and is coupled to the second base 24, so as to rotate along with the rotation of the second base 24. Specifically, the piezoelectric actuator 12 includes an elongated actuator body 13 extending along the first direction DR1 and a power ball head 14 as a power output end, wherein the actuator body 13 has two ends arranged opposite to each other in the first direction DR1, one of which abuts against the first end seat 26 in the negative direction of the first direction DR1, and the other end is inserted into the second end seat 27 and fastened to the second end seat 27 via two clamp arms 28, and the power ball head 14 is arranged at the other end. In implementation, when a pulsating voltage is applied to the piezoelectric actuator 12, the power ball head 14 of the piezoelectric actuator 12 will reciprocate in the first direction DR1, thereby providing a driving force along the first direction DR1 (more specifically, the positive direction of the first direction DR1) to the striker assembly 1000, causing the striker assembly 1000 to move along the first direction DR1.

[0112] The striker assembly 1000 is connected to the second base 24 via the slide 15, and includes a striker 11 extending in the positive direction of the first direction DR1. Specifically, the slide 15 is connected to the second base 24 via the guide rail 16. The guide rail 16 is a precision linear guide rail 16, which is installed to the opposite side of one of the support bars 25 to the other support bar 25. The slide 15 is formed into a roughly L-shape having a longitudinal arm and a transverse arm, wherein the longitudinal arm is connected to the guide rail 16, and the striker assembly 1000 is detachably connected to the transverse arm. Thus, the guide rail 16 is configured to guide the slide 15 and the striker assembly 1000 to move relative to the second base 24 along the first direction DR1, so that the striker 11 of the striker assembly 1000 can accurately strike the target position point of the target object 33 (e.g., a light guide plate), and helps to suppress damage to the striker 11.

[0113] In this embodiment, the driving force provided by the piezoelectric actuator 12 is not directly applied to the striker assembly 1000, but is indirectly transmitted to the striker assembly 1000 via the slide 15. Specifically, in the implementation, the power ball head 14 of the piezoelectric actuator 12 quickly presses the slide 15 in the positive direction of the first direction DR1 on one side of the cross arm of the slide 15, so that the slide 15 and the striker assembly 1000 connected to the slide 15 move in the positive direction of the first direction DR1, thereby using the striker 11 of the striker assembly 1000 to strike out a concave microstructure 33b on the surface (first surface 33a) of the target object 33.

[0114] The striker assembly 1000 includes a first part 100 and a second part 200. The first part 100 is detachably connected to the cross arm of the slide 15 and includes a first magnetic member 5. The second part 200 is connected to the first part 100 in a manner that can move along the first direction DR1, and includes a second magnetic member 8 and the aforementioned striker 11. Among them, the second magnetic member 8 and the first magnetic member 5 have a magnetic repulsion in the first direction DR1. It can be understood that the magnetic repulsion causes the second magnetic member 8 and the first magnetic member 5 to be biased away from each other in the first direction DR1. In addition, the first magnetic member 5 and the second magnet can be permanent magnets, and the magnitude of the aforementioned magnetic repulsion is inversely related to the distance between the two.

[0115] Through such a design, when the power ball head 14 of the piezoelectric actuator 12 presses the slide 15 in the positive direction of the first direction DR1, thereby causing the slide 15 and the first part 100 of the striker assembly 1000 to move in the positive direction of the first direction DR1, based on the aforementioned magnetic repulsion between the first magnetic member 5 and the second magnet, the second part 200 of the striker assembly 1000 will also move in the positive direction of the first direction DR1, thereby causing the striker 11 to hit the first surface 33a of the target object 33. Furthermore, during this process, when the striker 11 begins to contact the first surface 33a of the target object 33, the striker 11 is subjected to a negative reaction force in the first direction DR1 applied by the target object 33, and the reaction force gradually slows down the movement speed of the second part 200 and the striker 11. Since the first part 100 and the second part 200 of the striker assembly 1000 are movably connected in the first direction DR1 rather than rigidly connected, the reaction force will at least not be significantly transmitted to the first part 100. Moreover, at this time, the power ball head 14 may still be in a state of pressing the first part 100 in the positive direction of the first direction DR1, so at this time, the first part 100 moves toward the target object 33 at a faster speed than the second part 200, and the distance between the first magnetic part 5 and the second magnetic part 8 becomes smaller (but they will not contact). Although this will cause the aforementioned magnetic repulsion to increase, it can be ignored compared with the aforementioned reaction force. After the head of the striker 11 strikes a certain depth DD into the first surface 33a of the target object 33, the kinetic energy of the second part 200 and the speed of the striker 11 drop to zero under the action of the aforementioned reaction force, and then, under the action of the tension of the coil spring described later, the striker 11 retreats away from the target object 33 in the negative direction of the first direction DR1. It can be seen that the depth DD of the microstructure 33b on the target object 33 mainly depends on the kinetic energy of the second part 200 when the striker 11 begins to contact the target object 33, and the magnitude of the kinetic energy mainly depends on the performance of the piezoelectric actuator 12 (such as the stroke and speed of the power ball head 14, etc.) and the magnitude of the magnetic repulsion between the first magnet and the second magnet in the initial state. Therefore, using the impact point device, when the piezoelectric actuator 12 remains unchanged and the initial spacing between the first magnet and the second magnet remains unchanged, it is easy to strike out microstructures 33b with the same depth DD at different positions on the first surface 33a of the target object 33, even if the aforementioned different positions may have different height differences, for example Figure 8 .

[0116] To better illustrate this technology, Fig. 9 Shown with Figure 8In a comparative example with different conditions, the first part 100 and the second part 200 of the striker assembly 1000 are rigidly connected. Therefore, the depth DD of the striker 11 striking the first surface 33a of the target object 33, that is, the depth DD of the processed microstructure 33b, will depend on the stroke of the power ball head 14 of the piezoelectric actuator 12 and the distance between the striker 11 and the first surface 33a. Therefore, if the first surface 33a of the target object 33 has the following Fig. 9 The uneven topography shown will result in deeper microstructures 33b at the raised positions of the first surface 33a, and shallower microstructures 33b at the depressed positions of the first surface 33a, that is, the size of the microstructure 33b, especially the depth DD, is difficult to control.

[0117] The first part 100 of the striker assembly 1000 includes not only the aforementioned first magnetic member 5 , but also a first base 1 and a first stopper 4 .

[0118] The first base 1 includes an outer cylinder 2 and an inner cylinder 3 inserted into and fixedly combined with the outer cylinder 2. The outer cylinder 2 can be formed of a metal material and detachably fastened to the cross arm of the aforementioned slide 15 via bolts, and the inner cylinder 3 can be formed of a wear-resistant Teflon material. The first base 1 has a first guide hole 3a defined by the inner cylinder 3 and an external threaded portion 2a defined by the outer cylinder 2, wherein the first guide hole 3a extends along the first direction DR1, and the external threaded portion 2a extends in the first direction DR1 around the periphery of the first guide hole 3a. In addition, the first base 1 also has a chamber 2b and an assembly hole 2c defined by the outer cylinder 2, and the chamber 2b is connected to the first guide hole 3a on the negative side of the first guide hole 3a along the first direction DR1, and is larger than the radial dimension of the first guide hole 3a. In addition, the chamber 2b has a first chamber wall surface 2b1 facing away from the first guide hole 3a (i.e., in the negative direction of the first direction DR1), and more specifically, the first chamber wall surface 2b1 is formed as a plane perpendicular to the first direction DR1. The assembly hole 2c passes through from the outer surface of the first base 1, which is also the outer surface of the outer cylinder 2, to the storage chamber. The assembly hole 2c and the first chamber wall surface 2b1 will be described in more detail later.

[0119] The first stopper 4 is formed into a circular ring shape that is sleeved and installed on the first base 1 (more specifically, the outer cylinder 2 of the first base 1), and the installation position of the first stopper 4 relative to the first base 1 can be adjusted along the first direction DR1. Specifically, the first stopper 4 has a threaded hole 4a that is screwed with the external threaded portion 2a of the outer cylinder 2. In practice, based on the cooperation between the threaded hole 4a and the external threaded portion 2a, the first stopper 4 is rotated around the first direction DR1, so that the installation position of the first stopper 4 relative to the first base 1 can be adjusted along the first direction DR1. In addition, the first stopper 4 can also be formed of Teflon material.

[0120] The first magnetic member 5 is also formed into a circular ring shape that is sleeved and installed on the first base 1 (more specifically, the outer cylinder 2 of the first base 1), and the inner hole of the first magnetic member 5 is designed to be larger than the outer diameter of the outer cylinder 2, so that the first magnetic member 5 can move relative to the first base 1 along the first direction DR1. However, under the action of the aforementioned magnetic repulsion force, the first magnetic member 5 abuts against the first limit member 4 in the negative direction of the first direction DR1, thereby having a stable position relative to the first base 1. When the first limit member 4 moves along the first direction DR1 with the first base 1, the first magnetic member 5 will also move accordingly, and when the installation position of the first limit member 4 relative to the first base 1 is adjusted in the first direction DR1, the position of the first magnetic member 5 relative to the first base 1 is also changed accordingly.

[0121] By adjusting the installation position of the first limit member 4 relative to the first base 1 in the first direction DR1, the distance between the first magnetic member 5 and the second magnetic member 8 can be changed, and the magnitude of the aforementioned magnetic repulsion can be adjusted, thereby adjusting the depth DD of the microstructure 33b processed on the target object 33.

[0122] In addition to the aforementioned second magnetic member 8 , the second portion 200 of the striker assembly 1000 further includes a second base 6 , a second stopper 7 and a second retaining spring 10 .

[0123] The second base 6 is formed as an integral component, which includes a connector 6b and a first guide rod 6a integrally extending from one end of the connector 6b toward the negative direction of the first direction DR1. The first guide rod 6a is movably inserted into the first guide hole 3a, and the connector 6b is formed to be thicker than the size of the first guide rod 6a. The first end 6a1 of the first guide rod 6a on the negative side of the first direction DR1 extends into the chamber 2b through the first guide hole 3a. It can be understood that the movement of the second part 200 relative to the first part 100 can be guided in the first direction DR1 through the cooperation of the first guide hole 3a and the first guide rod 6a. In addition, the first clamping spring 9 is clamped to the first end 6a1 of the first guide rod 6a via the assembly hole 2c, and under the action of the aforementioned magnetic repulsion, the first clamping spring 9 abuts against the first cavity wall 2b1 in the positive direction of the first direction DR1, thereby preventing the first guide rod 6a from detaching from the first guide hole 3a, thereby preventing the first part 100 and the second part 200 from detaching from each other. It can be understood that during operation, the first clamping spring 9 will frequently reciprocate relative to the first cavity wall surface 2b1 in the first direction DR1.

[0124] The second stopper 7 is formed into a circular ring shape which is sleeved and installed on the second base 6 (more specifically, the connector 6b of the second base 6), and the connector 6b of the second base 6 has a protrusion protruding in a direction perpendicular to the first direction DR1, and the protrusion is inserted into a recess formed at the inner peripheral wall of the second stopper 7, thereby fixing the second stopper 7 and the second base 6 relatively in the circumferential direction. Figure 6 In addition, the second retaining spring 10 is detachably connected to the connector 6b of the second base 6 on the side of the second retaining member 7 opposite to the second magnetic member 8 (i.e., the positive side of the second retaining member 7 along the first direction DR1), thereby preventing the second retaining member 7 from being separated from the second portion 200 along the positive direction of the first direction DR1. Similar to the first retaining member 4, the second retaining member 7 can also be formed of Teflon material.

[0125] The second magnetic member 8 is also formed into a circular ring shape mounted on the second base 6, and the inner hole of the second magnetic member 8 is designed to be larger than the outer diameter of the second base 6, so that the second magnetic member 8 can move along the first direction DR1 relative to the second base 6. However, under the effect of the aforementioned magnetic repulsion, the second magnetic member 8 abuts against the second stop member 7 in the positive direction of the second direction DR2, thereby having a stable position relative to the second base 6.

[0126] It can be understood that designing the inner hole size of the first magnetic part 5 and the second magnetic part 8 to be slightly larger and using the first limit member 4 and the second limit member 7 to maintain the position of the first magnetic part 5 and the second magnetic part 8 can help extend the service life of the first magnetic part 5 and the second magnetic part 8, and can also easily replace the first magnetic part 5 and the second magnetic part 8 after they are damaged.

[0127] In this embodiment, the power ball head 14 of the piezoelectric actuator 12 is only in point contact with the slide 15, and the two are not fixed to each other. Therefore, in the process of the power ball head 14 of the piezoelectric actuator 12 retreating in the opposite direction of the first direction DR1, the piezoelectric actuator 12 itself will not drive the slide 15 and the first part 100 of the striker assembly 1000 to retreat in the opposite direction of the first direction DR1, which may cause the striker 11 to not be well withdrawn from the microstructure 33b, and may also cause the power ball head 14 to not fully push (press) the striker assembly 1000 when it moves in the positive direction of the first direction DR1 next time. In view of this, the impact point device is also configured with a coil spring as an elastic member 17, one end of which is connected to the second base 24, and the other end is connected to the slide 15, so that a negative elastic force in the first direction DR1 is applied to the slide 15, so that the slide 15 and the striker assembly 1000 are biased in the negative direction of the first direction DR1.

[0128] The striker assembly 1000 further includes a second guide rod 32, which extends along the first direction DR1 and connects the first part 100 and the second part 200 in a manner that allows the first part 100 and the second part 200 to move relative to each other in the first direction DR1. More specifically, the second stopper 7 has a second guide hole 7a extending through along the first direction DR1, a portion of the second guide rod 32 is detachably fixed to the first base 1, and another portion is movably inserted into the second guide hole 7a. Moreover, when viewed along the first direction DR1, the second guide hole 7a is spaced apart from the first guide hole 3a, and accordingly, the second guide rod 32 is also spaced apart from the first guide rod 6a. It can be seen that the second guide rod 32 also guides the relative movement of the first part 100 and the second part 200 in the first direction DR1, and with the help of the second guide rod 32 and the first guide rod 6a, the second part 200 and the first part 100 can be relatively fixed in the circumferential direction around the first direction DR1, thereby preventing the second part 200, especially the striker 11, from producing uncontrolled rotation during operation.

[0129] In addition, the aforementioned external threaded portion 2a of the outer cylinder 2 extends at least to the vicinity of the assembly hole 2c, so that the first stopper 4 can be adjusted to a position covering the assembly hole 2c by rotating around the first direction DR1 (more specifically, the first axis AX extending along the first direction DR1). Through such a design, the first stopper 4 can be used to block the assembly hole 2c to prevent the first clip 9 from accidentally detaching from the assembly hole 2c. It can be understood that during the operation, the first clip 9 will frequently move back and forth along the first guide rod 6a in the first direction DR1, so the first clip 9 has a relatively large risk of detaching from the first end 6a1, and the assembly hole 2c is blocked by the first stopper 4, especially when the first clip 9 is pushed into the chamber 2b through the assembly hole 2c and directly clamped to the first end 6a1 of the first guide rod 6a, and the first guide rod 6a is no longer subjected to the following rotational dislocation operation, the inner peripheral wall surface of the first stopper 4 can be used to block the detachment path of the first clip 9.

[0130] Although the risk of the first retaining spring 9 falling off can be reduced by adjusting the position of the first limit member 4 to cover the assembly hole 2c, as mentioned earlier, by adjusting the first limit member 4 and thereby adjusting the position of the first magnetic member 5, microstructures 33b of different depths DD can be processed on the target object 33. Therefore, it is not practical to always adjust the first limit member 4 to a position that covers the assembly hole 2c. That is, sometimes the first limit member 4 is positioned to fully expose the assembly hole 2c, but as mentioned earlier, this may cause the first retaining spring 9 to easily detach from the assembly hole 2c.

[0131] In view of this, the present embodiment configures the striker assembly 1000 as follows: during the installation process of the striker assembly 1000, after the first clip 9 is clipped to the first end 6a1 via the assembly hole 2c, the first guide rod 6a is rotated around the first direction DR1 by a predetermined angle (such as 180°) so that the positions of the first clip 9 and the assembly hole 2c are offset from each other. For example, the second guide rod 32 can be pre-fixed to the first base 1, and after the first guide rod 6a is rotated so that the positions of the first clip 9 and the assembly hole 2c are offset from each other, the second magnetic member 8, the second stopper 7 and the second clip 10 are installed so that the second guide hole 7a of the second stopper 7 is sleeved on the pre-fixed second guide rod 32. As a result, even if the assembly hole 2c is not covered by the first stopper 4, since the positions of the first clip 9 and the assembly hole 2c are already offset, the first clip 9 is unlikely to be detached from the assembly hole 2c.

[0132] Further, the assembly hole 2c specifically penetrates from the outer surface of the first base 1 to the aforementioned chamber 2b in the second direction DR2 perpendicular to the first direction DR1, and the assembly hole 2c has a first hole wall surface 2c1 and a second hole wall surface 2c2 arranged opposite to each other in the first direction DR1, wherein the first hole wall surface 2c1 faces the negative direction of the first direction DR1 and is coplanar with the aforementioned first chamber wall surface 2b1. The first end 6a1 of the first guide rod 6a has an annular clamping groove extending around the entire circumference of the first direction DR1, and the first clamping spring 9 is formed into a substantially C-shape. During assembly, the relative position of the second base 6 and the first base 1 in the first direction DR1 can be adjusted so that the annular groove of the first end 6a1 is in a position opposite to the assembly hole 2c. In particular, the annular groove can be adjusted to a position just higher than the first cavity wall 2b1 and the first hole wall 2c1. Then, the first clamping spring 9 is inserted into the assembly hole 2c with its opening facing the cavity 2b by means of a tool, and the first clamping spring 9 is applied with force to move inward along the second direction DR2 against the first cavity wall 2b1 and the first hole wall 2c1, and is clamped to the annular groove of the first end 6a1. Then, the first guide rod 6a is rotated 180° around the first direction DR1 so that the first clamping spring 9 (the exit path) is offset from the assembly hole 2c, and then the installation of the subsequent components is completed. It can be seen that the installation direction of the first clamping spring 9 can be easily guided by the coplanar first hole wall 2c1 and the first cavity wall 2b1.

[0133] In addition, the second stopper 7 is configured to be sleeved on the second base 6 by moving in the negative direction of the first direction DR1 before the second clamping spring 10 is clamped to the second base 6, and to be separated from the second base 6 by moving in the positive direction of the first direction DR1 when the second clamping spring 10 is detached from the second base 6. In this way, the second stopper 7 and the second guide rod 32 can be easily assembled and disassembled by assembling and disassembling the second clamping spring 10.

[0134] In conjunction with the above description, see Fig.10 The embodiment of the present application also provides a method for installing the striker assembly 1000, the method comprising:

[0135] S101 , clamping the first clamping spring 9 to the first end portion 6 a 1 of the first guide rod 6 a via the assembly hole 2 c .

[0136] S102: The first guide rod 6a is rotated by a predetermined angle around the first direction DR1, thereby causing the positions of the first clip spring 9 and the mounting hole 2c to be offset from each other.

[0137] S103, installing other components so that the second guide rod 32 is in such a state that the first part 100 and the second part 200 are connected in a manner that allows the first part 100 and the second part 200 to move relative to each other in the first direction DR1. For example, the second guide rod 32 can be pre-fixed to the first base 1, and after step S101, the second magnetic member 8, the second stopper 7 and the second clip 10 are installed so that the second guide hole 7a of the second stopper 7 is sleeved on the pre-fixed second guide rod 32.

[0138] Combine the above description and review Figure 8 The present application also provides a method for using a collision point device, which is used to process a concave microstructure 33b on a first surface 33a of a target object 33, such as Fig.11 As shown, the method of use includes:

[0139] S111, when the striker 11 and the first surface 33a of the target object 33 are separated by a certain distance in the first direction DR1, the piezoelectric actuator 12 drives the striker 11 via the slide 15 to hit the first surface 33a along the first direction DR1, thereby processing a concave microstructure 33b on the first surface 33a.

[0140] In some embodiments, the distance between the striker 11 and the first surface 33 a may be 60 μm, and the displacement distance of the power ball head 14 of the piezoelectric actuator 12 may be 25 μm.

[0141] S112, by utilizing a machine tool to drive the first base 18 to move substantially parallel to the first surface 33a, the striker 11 is adjusted to another position of the first surface 33a, and by utilizing a motor 29 to drive the second base 24 to rotate around the first axis AX, the striker 11 is rotated around the first direction DR1 by a set angle (for example, 90°).

[0142] S113, the piezoelectric actuator 12 drives the striker 11 via the carriage 15 to strike the first surface 33a along the first direction DR1, thereby processing another microstructure 33b at another position of the first surface 33a with a different angle from the microstructure 33b in S111.

[0143] The target object 33 may be an optical plate such as a light guide plate, or a mold for manufacturing an optical plate. When the target object 33 is a mold for manufacturing an optical plate, the optical plate manufactured using the mold has a convex microstructure 33b that is complementary in shape to the concave microstructure 33b.

[0144] It is necessary to explain that due to the existence of assembly tolerances, when the second base 6 striker assembly 1000 is at different angular positions, the striker thereon may not always extend strictly along the first direction DR1, that is, in some cases, the striker 11 may deviate from the first direction DR1 by a certain angle (e.g., 1°). Due to such angular deviations, the depth consistency of the processed microstructures at different angles may be reduced, and the angle and position of the processed microstructures may be different from the ideal angle and position. Therefore, it is necessary to adjust the control amount in the processing process accordingly according to the deviation to compensate for the deviation. For such considerations, in some embodiments, such as Fig.12 The method of using the aforementioned collision point device may include:

[0145] S121, when the second base 6 is at the first set position, control the piezoelectric actuator 12 to drive the striker assembly 1000 (more specifically, the striker 11 thereon) to strike the first surface 33a of the target object 33 along the first direction DR1, so as to form a first microstructure with a first angle and a first depth at a first position on the first surface 33a; wherein the second base 6 at the first set position has a first set distance relative to the first surface 33a, and has a first set angle around the first axis AX relative to the first base 1;

[0146] S122, when the second base 6 is in the second set position, control the piezoelectric actuator 12 to drive the striker assembly 1000 to hit the first surface 33a along the first direction DR1, thereby forming a second microstructure with a second angle and a second depth at the second position of the first surface 33a, and the second depth is the same as the first depth; wherein the second base 6 in the second set position has a second set distance different from the aforementioned first set distance relative to the first surface 33a, and has a second set angle around the first axis and different from the aforementioned first set angle relative to the first base, wherein the angular difference between the second angle and the first angle is different from the angular difference between the second set angle and the first set angle, and the distance between the second position and the first position is different from the distance between the second set position and the first set position.

[0147] In step S122, specific information of the second set position can be determined according to the target position and target angle of the second microstructure to be processed (corresponding to the aforementioned second position and the aforementioned second angle), and then the second base 6 is controlled to switch from the previous first set position to the determined second set position.

[0148] Specifically, based on experiments, the distance (vertical distance) between the second base 6 and the first surface 33a corresponding to various microstructures 33b with the same depth but different angles, the distance (horizontal distance) between the longitudinal axis of the second base 6 and the microstructure along the extension direction of the first surface 33a, and the angle of the second base 6 around the first axis AX can be obtained, thereby obtaining the relationship between the angle of the microstructure 33b, the depth of the microstructure 33b, the position of the microstructure 33b, the distance between the second base 6 and the first surface 33a, the distance between the second base 6 and the microstructure 33b along the extension direction of the first surface 33a, and the angle of the second base 6 around the first axis AX. Then, according to the first microstructure to be processed, the distance between the second base 6 and the first surface 33a and the microstructure 33b can be obtained. The target position and target angle of the second microstructure are determined according to the aforementioned relationship, i.e., the preset relationship, to determine the distance between the second base 6 and the first surface 33a, the distance between the second base 6 and the microstructure 33b along the extension direction of the first surface 33a, and the angle of the second base 6 around the first axis AX, i.e., the target position corresponding to the second base 6 - the second set position, if the second microstructure is to be formed at the second position on the first surface 33a at the second angle. Then, the second base 6 is controlled to switch from the previous first set position to the determined second set position, and then the piezoelectric actuator 12 is controlled to drive the striker assembly 1000 to impact the first surface 33a along the first direction DR1, thereby processing the desired second microstructure.

[0149] It is understandable that, although it is described above that the initial distance between the striker 11 and the first surface 33a will not significantly affect the depth DD of the microstructure 33b formed by the impact, this is relative to the micro-sized convexoconcave and concave on the first surface 33a, that is, the micro-sized convexoconcave and concave on the first surface 33a will basically not cause the change of the depth DD of the microstructure 33b. When the initial distance between the striker 11 and the first surface 33a is relatively different, it will also affect the depth DD of the microstructure 33b formed by the impact to a certain extent. Therefore, in step S122, the depth change of the microstructure 33b can be compensated by setting the distance between the second base 6 and the first surface 33a differently, so that the microstructures 33b at different angles have the same depth.

[0150] In some embodiments, the second base 24 is formed into a symmetrical shape about the first axis AX, and the axis of the striker assembly 1000 (also the axis of the striker 11) and the axis of the piezoelectric actuator 12 both coincide with the first axis AX. Such a symmetrical design helps to suppress the deflection and vibration of the second base 24 during rotation and the striker 11 during impact.

Claims

1. A firing pin assembly, characterized in that: include: a first portion configured to move in a first direction by receiving a driving force from a piezoelectric actuator, the first portion comprising a first magnetic member; The second part is connected to the first part in a manner that it can move along the first direction, and includes a striker and a second magnetic member, wherein the second magnetic member and the first magnetic member have a magnetic repulsion force in the first direction.

2. The striker assembly according to claim 1, characterized in that: The first part includes: a first base portion including a first guide hole extending in the first direction; A first stopper, mounted on the first base, and adjustable relative to the mounting position of the first base along the first direction; Wherein, the first magnetic member is mounted on the first base portion in a manner that it can move along the first direction, and abuts against the first limiting member in the negative direction of the first direction under the action of the magnetic repulsion force; The second part includes: A second base, comprising a first guide rod extending along the first direction and movably inserted into the first guide hole; A second limiting member, mounted on the second base; The second magnetic member is mounted on the second base portion in a manner that it can move along the first direction, and abuts against the second limiting member in a positive direction of the first direction under the action of the magnetic repulsion force.

3. The striker assembly according to claim 2, characterized in that: The first base includes an external threaded portion extending in the first direction around the periphery of the first guide hole, the first limiting member includes a threaded hole threadedly engaged with the external threaded portion, and the first limiting member is configured to adjust its installation position relative to the first base along the first direction by rotating around the first direction.

4. The striker assembly according to claim 2 or 3, characterized in that: The first base comprises: a chamber connected with the first guide hole at the negative side of the first guide hole along the first direction and having a first cavity wall surface facing away from the first guide hole, wherein the first end of the first guide rod extends into the chamber through the first guide hole; an assembly hole extending from the outer surface of the first base portion to the cavity; The striker assembly also includes a first retaining spring that is clamped to the first end portion via the assembly hole. Under the action of the magnetic repulsion force, the first retaining spring abuts against the first cavity wall in the positive direction of the first direction, thereby preventing the first part and the second part from separating from each other.

5. The striker assembly according to claim 4, characterized in that: The first limiting member can be adjusted to a position covering the assembly hole.

6. The striker assembly according to claim 4, characterized in that The first cavity wall surface is formed as a plane perpendicular to the first direction, the assembly hole penetrates from the outer surface of the first base to the cavity in a second direction perpendicular to the first direction, and has a first hole wall surface and a second hole wall surface arranged opposite to each other in the first direction, wherein the first hole wall surface faces the negative direction of the first direction and is coplanar with the first cavity wall surface; The first clamping spring is configured to be clamped to the first end portion by moving along the second direction.

7. The striker assembly according to claim 4, characterized in that Also includes: a second guide rod extending along the first direction and connecting the first portion and the second portion in a manner allowing the first portion and the second portion to move relative to each other in the first direction, the second guide rod being spaced apart from the first guide rod when viewed along the first direction; During installation of the striker assembly, after the first clip is clipped to the first end via the assembly hole, the first guide rod is rotated around the first direction by a specified angle so that the positions of the first clip and the assembly hole are offset from each other.

8. The striker assembly according to claim 6, characterized in that The second stopper is mounted on the second base portion in a manner that it can move along the first direction, and the second portion further includes: a second clamping spring, which is detachably clamped to the second base portion at the positive side of the second stopper along the first direction, and under the action of the magnetic repulsion force, the second stopper abuts against the second clamping spring in the positive direction of the first direction, thereby preventing the second stopper from being separated from the second portion; The second stopper is configured to be sleeved on the second base by moving in the negative direction of the first direction before the second clamping spring is clamped to the second base, and to be separated from the second base by moving in the positive direction of the first direction when the second clamping spring is detached from the second base; The second limiting member includes a second guide hole extending along the second direction, a portion of the second guide rod is detachably fixed to the first base, and another portion is movably inserted into the second guide hole.

9. A method for installing a striker assembly as claimed in claim 7, characterized in that: include: The first clamping spring is clamped to the first end portion via the assembly hole; Rotate the first guide rod around the first direction by a specified angle, thereby causing the positions of the first clamping spring and the assembly hole to be offset from each other; The second guide rod is mounted to the striker assembly.

10. A collision point device, characterized in that: include: The striker assembly according to any one of claims 1 to 8; The piezoelectric actuator has a power output end for providing the driving force; second base; A carriage is connected to the second base via a guide rail, the guide rail being configured to guide the carriage to move relative to the second base along the first direction, wherein the first part is connected to the carriage and configured to receive the driving force from the piezoelectric actuator via the carriage.

11. The collision point device according to claim 10, characterized in that: The power output end is configured to move the first part toward a positive direction of the first direction by pressing the slide, wherein the positive direction of the first direction points from the first part to the second part; The collision point device also includes: The elastic member biases the sliding bracket toward the negative direction of the first direction.

12. A method for using the collision point device as claimed in claim 10 or 11, for processing a concave microstructure on a first surface of a target object, characterized in that: The method comprises: When the striker is spaced apart from the first surface by a certain distance in the first direction, the piezoelectric actuator drives the striker to strike the first surface along the first direction via the carriage.

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