Swinging head assembly for multi-wire cutting machine

Abstract

The utility model belongs to the technical field of multi-wire cutting machines, and particularly relates to a swing head assembly for a multi-wire cutting machine, which comprises a swing fixing seat assembly, a swing rod assembly, a swing rod assembly and a swing rod assembly, the swing seat assembly is provided with a U-shaped structure with a downward opening and is nested in the swing fixed seat assembly, and the swing seat assembly and the swing fixed seat assembly are rotationally connected through a bearing assembly; the workpiece mounting plate is arranged in the U-shaped opening of the swinging seat assembly, and the cutting part of the workpiece is exposed out of the swinging structure; the clamping oil cylinder is arranged on the swing seat assembly and is connected with the workpiece mounting plate in a clamping manner; the driving mechanism is arranged at the upper part of the swinging fixed seat assembly; and the belt pulley assembly comprises a driving wheel and a synchronous belt and drives the swing seat assembly to swing through a driving mechanism. The swing head assembly solves the technical problems that in the prior art, a swing head assembly of a multi-wire cutting machine is complex in structure, high in production cost and high in assembly precision requirement, assembly is simplified, structural stability and cutting precision are improved, and production and maintenance cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of multi-wire cutting machines, and more specifically, relates to a swing head assembly for a multi-wire cutting machine. Background Technology

[0002] In modern machining, especially in cutting operations requiring high stability and precision, the oscillating head assembly of multi-wire EDM machines is widely used. The oscillating head assembly typically consists of several key components, including a drive system, pulleys, clamping devices, and a support structure. (See attached instruction manual.) Figure 1 As shown, in the prior art, the design of this component often relies on the coordinated work of multiple subsystems, such as the drive unit, the arc-shaped guide rail A1, the clamping cylinder A2, the upper mounting plate A3, and the lower mounting plate A4, in order to achieve high-precision swing cutting action.

[0003] However, existing technologies still have some shortcomings in design and use, specifically in the following aspects:

[0004] 1. Structural Design Defect: In the existing swing head assembly, the bottom surface of the upper mounting plate A3 and the top surface of the lower mounting plate A4 are equipped with machined recessed stepped structures for the arc-shaped guide rails A1. The horizontal surface of this stepped structure serves as the mounting surface for the top and bottom surfaces of the two arc-shaped guide rails A1, and the side of this stepped structure fits against the side of the arc-shaped guide rails A1, serving as the positioning surface for the two arc-shaped guide rails A1. To ensure high-precision operation of the system, the parallelism and symmetry of the two arc-shaped guide rails A2 must be strictly guaranteed during installation. However, due to the large dimensions of the upper mounting plate A3 and the lower mounting plate A4, it is difficult to ensure that the two mounting surfaces of the upper mounting plate A3 are horizontal and located in the same plane during actual processing. It is also difficult to ensure that the positioning surfaces of the upper mounting plate A3 are parallel to each other and orthogonal to the mounting surfaces. This results in deviations in the parallelism or symmetry of the two arc-shaped guide rails A1 after installation. The lower mounting plate A4 has the same problem, which directly affects the cutting accuracy and system stability.

[0005] 2. Deformation and Wear Issues: Due to the difficulty in guaranteeing the machining precision of the upper mounting plate A3 and lower mounting plate A4, the curved guide rail A1 will undergo torsional deformation after installation with these plates. With prolonged sliding use, the curved guide rail A2 itself will experience wear, leading to uneven friction and movement stagnation. This not only reduces the equipment's lifespan but also causes instability during the cutting process, thus affecting the consistency of cutting quality.

[0006] 3. Non-standardized design and cost issues: Existing swing head assemblies lack modular and standardized design concepts. To achieve high-precision motion control, a large number of customized special-purpose parts are typically used. For example, key components such as the arc-shaped guide rail A1 and the clamping cylinder A2 are non-standard parts designed for specific requirements. The manufacturing of these special-purpose parts requires high-precision machining processes, which increases the overall production cost of the equipment. Due to the poor versatility of these special-purpose parts, once the equipment needs to be upgraded, modified, or have parts replaced, the non-modular design not only requires the individual customization or procurement of parts, but the replacement or repair of any single part also involves the re-adjustment and installation of multiple related parts. Users often need to customize or procure these parts individually, significantly increasing the complexity and cost of maintenance.

[0007] In summary, existing multi-wire EDM machine oscillating head assemblies suffer from numerous shortcomings in terms of structural complexity, assembly precision, operational stability, production cost, and ease of maintenance. These issues not only hinder the promotion and use of the equipment but also pose greater challenges to its economic efficiency and reliability. Therefore, it is urgent to address the deficiencies in existing technologies by optimizing design, introducing modular structures, improving the standardization of components, and reducing manufacturing and maintenance costs, thereby achieving a high-precision, high-stability, and low-cost oscillating head assembly design. Utility Model Content

[0008] This invention addresses the shortcomings of existing technologies by proposing a sway head assembly for multi-wire cutting machines. It solves the deficiencies of existing sway head assemblies in terms of accuracy, stability, durability, and maintenance costs, thereby improving the overall performance and service life of the system.

[0009] This utility model provides a swing head assembly for a multi-wire cutting machine, comprising:

[0010] The swing-mounted base assembly has a U-shaped structure with an opening facing downwards, and an opening at the top;

[0011] A rocking seat assembly, wherein the rocking seat assembly has a U-shaped structure with an opening facing downward and is nested within the U-shaped structure of the rocking fixed seat assembly, and the two sides of the U-shaped structure of the rocking seat assembly are rotatably connected to the two sides of the U-shaped structure of the rocking fixed seat assembly through a bearing assembly;

[0012] The workpiece mounting plate is disposed in the U-shaped opening of the rocker seat assembly, and a workpiece is mounted on its bottom. The cut part of the workpiece after installation is exposed outside the rocker fixed seat assembly and the U-shaped structure of the rocker seat assembly and is located above the roller cutting line.

[0013] A clamping cylinder is mounted on the rocker seat assembly, and its piston rod is clamped to the workpiece mounting plate.

[0014] A drive mechanism is disposed on the upper part of the swing fixing base assembly;

[0015] The pulley assembly includes a drive pulley and a timing belt. The drive pulley is mounted on the output shaft of the drive mechanism, and the timing belt is wrapped around the drive pulley. Both ends of the timing belt are connected to the rocker seat assembly through the top opening of the rocker seat assembly, and are used to pull the rocker seat assembly to rock under the drive of the drive pulley.

[0016] In a preferred embodiment, the swing fixing seat assembly further includes a swing fixing seat, a guide wheel mounting plate, and a drive mechanism mounting plate. The swing fixing seat adopts a U-shaped structure with an opening facing downwards, and the top surface of the U-shaped structure is provided with a drive mechanism mounting plate. The drive mechanism mounting plate is provided with a spatial opening for the clamping cylinder to reciprocate and swing. A guide wheel mounting plate is provided between the spatial opening and the drive mechanism mounting plate.

[0017] In a preferred embodiment, the rocker seat assembly further includes a pressure cap, a belt fixing seat, and a rocker seat; wherein the rocker seat adopts a U-shaped structure with the opening facing downwards, and an arc-shaped belt fixing seat is provided on the top of the rocker seat, and the two ends of the timing belt are fixed to the belt fixing seat by the pressure cap.

[0018] In a preferred embodiment, the workpiece mounting plate further includes a material plate and a material-adhesive plate; the material plate is suspended inside the U-shaped structure of the rocker seat by the piston rod of the clamping cylinder, and the material-adhesive plate is fixedly installed at the bottom of the material plate.

[0019] In a preferred embodiment, two clamping cylinders are provided, and two slots are provided on the top of the material plate. The piston rod of each clamping cylinder passes through the rocker seat and is installed in the corresponding slot, and the slot penetrates the top surface of the material plate.

[0020] In a preferred embodiment, the drive mechanism further includes a servo motor and a servo reducer, wherein the output shaft of the servo motor is connected to the input shaft of the servo reducer; the servo reducer is fixed to the drive mechanism mounting plate by its housing, and its output shaft passes through the drive mechanism mounting plate.

[0021] In a preferred embodiment, the pulley assembly further includes guide wheels; two guide wheels are provided and mounted on a guide wheel mounting plate, the drive wheel is mounted on the output shaft of the servo reducer, and the synchronous belt is arranged around the drive wheel, with its two ends respectively surrounding the guide wheels and fixed to the rocker seat assembly.

[0022] In a preferred embodiment, the lower part of the U-shaped structure of the swing fixing seat and the swing seat is provided with through bearing assembly mounting holes.

[0023] In a preferred embodiment, the bearing assembly further includes a rotating shaft and a bearing; wherein, a T-shaped hole and an I-shaped hole are respectively provided in the lower part of the U-shaped structure of the rocker seat and the rocker fixed seat, the bearing is installed in the I-shaped hole, one end of the rotating shaft is a flange face, and the flange face is in close contact with the shape of the T-shaped hole, and the other end of the rotating shaft is rotatably connected to the bearing in the I-shaped hole on the rocker fixed seat through the T-shaped hole.

[0024] In a preferred embodiment, the bearing assembly further includes an inner pressure cover and an outer end cover; wherein the inner pressure cover and the outer end cover are respectively installed on both sides of the I-shaped hole, and the inner pressure cover is sleeved on the rotating shaft.

[0025] The beneficial effects of this utility model are:

[0026] First, the oscillating head assembly for a multi-wire cutting machine of this utility model employs a downward-opening U-shaped structure with an oscillating fixed base assembly and a nested oscillating base assembly, connected by bearing assemblies on both sides for rotational connection. Compared to existing arc-shaped guide rails whose oscillation relies heavily on the machining precision of the mounting plate, this design not only solves the deformation problem of the arc-shaped guide rail and mounting plate caused by low machining precision, improving the overall structural stability, but also effectively simplifies the assembly process. Simultaneously, the design of the workpiece mounting plate exposes the workpiece cutting part outside the U-shaped structure of the oscillating base assembly and the fixed base assembly, avoiding structural obstruction that could affect cutting accuracy. The clamping cylinder is clamped to the workpiece mounting plate, ensuring stable workpiece positioning and further improving machining accuracy. The drive mechanism and pulley assembly are driven by a synchronous belt, ensuring the smoothness and efficiency of the oscillating motion. Furthermore, this structure has a high level of modular design, reducing the use of specialized parts, helping to lower equipment production costs and maintenance difficulty, while improving the equipment's versatility and economy.

[0027] Secondly, in the preferred implementation, the swing fixing base of this utility model adopts a U-shaped structure with the opening facing downwards, which enhances the overall stability and rigidity, while reducing the size of the equipment and improving space utilization. The drive mechanism mounting plate is set on the top surface of the U-shaped structure, providing stable support and enabling the drive mechanism to transmit power efficiently and accurately. In addition, the spatial opening on the drive mechanism mounting plate provides ample space for the reciprocating swing of the clamping cylinder, ensuring smooth operation during work and avoiding instability caused by space constraints. The design of the guide wheel mounting plate effectively supports the fixation of the guide wheel, reduces vibration during movement, and further improves the stability and cutting accuracy of the system.

[0028] Third, in the preferred implementation, this utility model improves the performance of the rocker seat assembly by designing the rocker seat as a U-shaped structure with the opening facing downwards and setting an arc-shaped belt fixing seat at the top. At the same time, the two ends of the timing belt are fixed to the belt fixing seat by pressure caps. The belt fixing seat reduces component wear and extends the service life of the assembly.

[0029] Fourth, in the preferred embodiment, the use of two clamping cylinders in this invention achieves a more uniform clamping force distribution, improving workpiece stability and cutting accuracy. Simultaneous operation of the two cylinders makes the clamping process faster and more efficient, ensuring workpiece fixation and continuity during cutting. The through-slot design makes the piston rod of the clamping cylinder easier to inspect and replace, simplifying maintenance and reducing equipment downtime.

[0030] Fifth, in the preferred embodiment, the pulley assembly of this utility model further includes two guide pulleys mounted on the guide pulley mounting plate, further optimizing the running trajectory of the synchronous belt. The drive pulley is mounted on the output shaft of the servo reducer, and the synchronous belt is arranged around the drive pulley, with its two ends respectively fixed to the rocker seat assembly around the guide pulleys, ensuring the smooth operation of the drive system and the accurate rocking motion of the rocker seat assembly.

[0031] Sixth, in the preferred embodiment, this utility model ensures stable installation and rotational accuracy of the bearing by providing T-shaped holes and I-shaped holes in the lower parts of the rocker seat and the rocker fixed seat, respectively, and installing the bearing in the I-shaped hole. The rotating shaft flange surface fits tightly with the T-shaped hole, effectively preventing loosening or misalignment of the bearing assembly. The rotating shaft is rotatably connected to the bearing on the rocker fixed seat through the T-shaped hole, which helps reduce friction and wear. The design of the inner pressure cover and the outer end cover effectively prevents external contaminants from entering the bearing assembly and reduces lubricating oil leakage. Attached Figure Description

[0032] Figure 1 This is a 3D structural diagram of a gyratory head assembly in the prior art;

[0033] Figure 2 This is a perspective structural diagram of a swing head assembly for a multi-wire cutting machine according to an embodiment of the present invention;

[0034] Figure 3 This is a front view of a swing head assembly for a multi-wire cutting machine according to an embodiment of the present invention;

[0035] Figure 4 yes Figure 3 A sectional view of AA;

[0036] Figure 5 This is a side view of a swing head assembly for a multi-wire cutting machine according to an embodiment of the present invention;

[0037] Figure 6 yes Figure 5 A cross-sectional view of BB;

[0038] Figure 7 yes Figure 6 A magnified view of part I;

[0039] Figure 8 This is an assembly structure diagram of the clamping cylinder and the material plate according to an embodiment of this utility model;

[0040] Figure 9 This is an assembly structure diagram of the clamping cylinder, material plate, and rocking seat according to an embodiment of the present invention.

[0041] Among them, 1-drive mechanism; 10-servo motor; 11-servo reducer; 2-pulley assembly; 20-drive wheel; 21-synchronous belt; 22-guide wheel; 3-clamping cylinder; 30-piston rod; 4-swinging fixed seat assembly; 40-swinging fixed seat; 41-guide wheel mounting plate; 42-drive mechanism mounting plate; 5-bearing assembly; 50-rotating shaft; 51-inner pressure cover; 52-outer end cover; 53-bearing; 6-swinging seat assembly; 60-pressure cover; 61-belt fixed seat; 62-swinging seat; 63-material plate; 630-slot; 64-sticking plate; A-workpiece; A1-arc guide rail; A2-clamping cylinder; A3-upper mounting plate; A4-lower mounting plate. Detailed Implementation

[0042] To enable those skilled in the art to better understand the technical solutions of this application, the following will provide a more detailed description of this application in conjunction with the accompanying drawings and embodiments.

[0043] In the description of this application, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise expressly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection; "link" can mean a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0044] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0045] In the description of this specification, the terms "one embodiment / mode," "some embodiments / modes," "specific embodiment / mode," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example, which is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples.

[0046] Example 1

[0047] As per the instruction manual Figure 2 This invention proposes a swing head assembly for a multi-wire cutting machine, aiming to improve the stability of the cutting process while reducing costs. The design of this assembly allows for the use of common components for the clamping cylinder, drive mechanism, and pulley assembly, thereby optimizing costs. The swing head assembly includes a drive mechanism 1, a pulley assembly 2, a clamping cylinder 3, a swing fixing seat assembly 4, a bearing assembly 5, and a swing seat assembly 6. The swing fixing seat assembly 4 and the swing seat assembly 6 have downward-facing U-shaped structures. The swing seat assembly 6 is nested within the U-shaped structure of the swing fixing seat assembly 4, and the two sides of the U-shaped structure of the swing seat assembly 6 are rotatably connected to the two sides of the U-shaped structure of the swing fixing seat assembly 4 via the bearing assembly 5. This design ensures that the swing seat assembly 6 can rotate smoothly, thereby improving the overall system stability and cutting accuracy. Workpiece A is mounted inside the U-shaped structure of the swing seat assembly 6 via a mounting plate, with its cutting portion exposed outside the U-shaped structures of the swing fixing seat assembly 4 and the swing seat assembly 6. A roller cutting line is located below the cutting portion of workpiece A to ensure that workpiece A remains in the correct position during the cutting process, avoiding misoperation. The top of the swing-fixed seat assembly 4 has an opening through which the clamping cylinder 3 is fixed to the swing-fixed seat assembly 6. Its piston rod is clamped to the mounting plate of the workpiece A by the return tension of the built-in spring. The top of the swing-fixed seat assembly 4 also has a vertical plate, on which the drive mechanism 1 is mounted. The pulley assembly 2 includes a drive pulley and a timing belt. The drive pulley is mounted on the output shaft of the drive mechanism 1, and the timing belt is wrapped around the drive pulley. Its two ends are fixed to the swing-fixed seat assembly 6 through the top opening of the swing-fixed seat assembly 4. The drive mechanism 1 drives the drive pulley to reciprocate, so that the two ends of the timing belt pull the swing-fixed seat assembly 6, together with the clamping cylinder 3 and the workpiece A, to rotate along the bearing assembly 5 on the swing-fixed seat assembly 4.

[0048] In this implementation, the drive mechanism 1 can be driven by a universal motor to ensure efficient and stable system operation. The drive mechanism is highly compatible, adaptable to various motor models, and easy to maintain and replace. The pulley assembly 2 consists of a universal pulley and a synchronous belt. The pulley is driven by the output shaft of the drive mechanism, ensuring smooth synchronous belt transmission, reducing reliance on custom-made parts, and lowering production costs. The clamping cylinder 3 is designed as a standardized component with good clamping force and stability. A return spring is fitted on the piston rod of the clamping cylinder 3, and the piston rod is tightly connected to the workpiece mounting plate through the return spring, ensuring stable workpiece clamping during cutting and preventing a decrease in cutting accuracy due to workpiece loosening.

[0049] Specifically, see the instruction manual. Figure 3-6 The swing fixing seat assembly 4 includes a swing fixing seat 40, a guide wheel mounting plate 41, and a drive mechanism mounting plate 42. The swing fixing seat 40 adopts a U-shaped structure with an opening facing downwards. The drive mechanism mounting plate 42 is provided on the top surface of the U-shaped structure, and a space opening for the clamping cylinder 3 to reciprocate is opened on the top surface of the drive mechanism mounting plate 42 on the outer side of the drive mechanism mounting plate 42. The guide wheel mounting plate 41 is provided between the opening and the drive mechanism mounting plate 42. The guide wheel mounting plate 41 is mounted on both sides of the opening and fixed to the top surface of the swing fixing seat 40. The guide wheel mounting plate 41 has an opening for the passage of a timing belt.

[0050] The drive mechanism 1 includes a servo motor 10 and a servo reducer 11. It provides high-precision, high-response power output to drive the entire system's motion. The output shaft of the servo motor 10 is connected to the input shaft of the servo reducer 11, precisely controlling the system's rotational speed and position to meet the high precision and stability requirements of the multi-wire cutting machine. The servo reducer 11 reduces the output speed of the servo motor 10 while increasing the output torque. Through the reduction mechanism, the servo reducer can convert the power of the high-speed servo motor into a lower-speed, higher-torque output more suitable for the workload, ensuring the drive mechanism has sufficient torque to complete high-load cutting tasks. The servo reducer 11 is fixed to the drive mechanism mounting plate 42 by its housing, and its output shaft passes through the drive mechanism mounting plate 42, ensuring stable connection and effective power transmission.

[0051] The pulley assembly 2 includes a drive pulley 20, a synchronous belt 21, and guide pulleys 22. The drive pulley 20 is mounted on the output shaft of the servo reducer 11. The synchronous belt 21 is arranged around the drive pulley 20, and its two ends are each arranged around a guide pulley 22 and then fixed to the rocker seat assembly 6. The guide pulleys 22 are mounted on the guide pulley mounting plate 41 and are used to guide the running trajectory of the synchronous belt 21, ensuring that the synchronous belt can run on a stable path. The drive pulley 20 directly receives the power output from the reducer and transmits the power to the rocker seat assembly 6 by driving the synchronous belt 21. The design of the drive pulley 20 ensures smooth power transmission and avoids vibration or power loss. In the implementation of this application, the two guide pulleys 22 are symmetrically arranged on both sides below the drive pulley 20, effectively supporting the tension and direction of movement of the synchronous belt and ensuring the accuracy and stability of the system transmission. The pulley assembly, through the reasonable arrangement of the guide pulleys 22 and the synchronous belt 21, ensures the stability and synchronization of power transmission, while reducing energy loss caused by vibration and friction.

[0052] The sway block assembly 6 includes a pressure cap 60, a belt fixing seat 61, a sway block 62, a material plate 63, and a material sticking plate 64. The sway block 62 adopts a U-shaped structure with an opening facing downwards, providing good support and stability. Its cooperation with the U-shaped structure of the sway fixing seat 402 simplifies component installation and connection, improving assembly efficiency. An arc-shaped belt fixing seat 61 is provided at the top of the sway block 62, used to fix both ends of the synchronous belt 21. The two ends of the synchronous belt 21 are fastened to the belt fixing seat 61 by the pressure cap 60, ensuring the tension and stability of the synchronous belt to accurately transmit the power of the drive system and ensure precise control during the cutting process. The material plate 63 is located inside the U-shaped structure of the sway block 62, but is not directly connected to the sway block 62. It is suspended inside the U-shaped structure of the sway block 62 by the tension of the piston rod of the clamping cylinder 3 and the return spring, ensuring that the material plate remains stable and does not shift during movement. The material sticking plate 64 is installed at the bottom of the material plate 63, mainly used to ensure the stability of the workpiece A. In the implementation of this application, the workpiece A is usually a hard and brittle material (such as ceramics, glass, sapphire, crystal, etc.). This material usually has high hardness and brittleness. Therefore, the adhesive plate 64 is coated with an adhesive material, such as epoxy resin with excellent adhesion and curing strength, polyurethane adhesive with high elasticity and impact resistance, or silicone adhesive with good flexibility.

[0053] The structure of this embodiment, through its modular design, effectively improves the stability and accuracy of the cutting process while reducing production costs. The universal design of the drive mechanism, pulley assembly, and clamping cylinder reduces reliance on custom-made parts, improving system compatibility and ease of maintenance. The precise fit between the synchronous belt and guide pulley ensures stability and synchronization during power transmission, reducing energy loss due to vibration and friction. The U-shaped structure and adhesive materials of the swing seat assembly ensure stable workpiece fixation, especially for hard and brittle materials, preventing accuracy issues caused by vibration or loosening during cutting, thereby improving cutting accuracy and work efficiency. Furthermore, the use of standardized components enhances the overall system's reliability and economy, reducing production and maintenance costs.

[0054] Example 2:

[0055] As per the instruction manual Figure 6-7 Based on Embodiment 1, the lower part of the U-shaped structure of the rocker fixed seat 40 and the rocker seat 62 is respectively provided with a through bearing assembly mounting position for mounting the bearing assembly 5. This design ensures a stable rotational connection between the rocker seat 63 and the rocker fixed seat 40, and minimizes friction during movement, avoiding unnecessary wear.

[0056] The bearing assembly 5 includes a rotating shaft 50, an inner pressure cover 51, an outer end cover 52, and a bearing 53. Taking one side of the lower part of the rocker base 40 and the rocker base 62 as an example, a T-shaped hole and an I-shaped hole are respectively provided in the lower part of the U-shaped structure of the rocker base 62 and the rocker base 40. The bearing 53 is installed in the I-shaped hole. One end of the rotating shaft 50 is a flange face, which fits tightly with the shape of the T-shaped hole to ensure stability and accuracy during rotation. The other end of the rotating shaft 50 is rotatably connected to the bearing 53 in the I-shaped hole of the rocker base 40 through the T-shaped hole. The inner pressure cover 51 and the outer end cover 52 are respectively installed on both sides of the I-shaped hole. The inner pressure cover 51 is sleeved on the rotating shaft 50. The inner pressure cover 51 and the outer end cover 52 are used to seal the bearing 53 and the rotating shaft 50, ensuring the sealing of the entire bearing assembly, preventing the entry of external dust and contaminants, and preventing the leakage of internal lubricating oil. This reduces wear caused by friction and the entry of external contaminants, extends the service life of the bearing, and ensures the stability of the rocker seat during long-term use.

[0057] The structure of this embodiment, through the precise fit of the U-shaped structure and bearing assembly, provides stable rotational support, reducing instability caused by structural looseness or asymmetrical loads, thereby improving accuracy during the cutting process. The precise connection between the shaft and bearing, along with the sealing effect of the inner pressure cap and outer end cap, effectively reduces the coefficient of friction and minimizes wear on internal components. This allows the swing head assembly to maintain high stability even after prolonged operation, with low maintenance costs. The sealed design of the bearing assembly prevents the ingress of external contaminants and reduces lubricant leakage, extending bearing life.

[0058] Example 3

[0059] As per the instruction manual Figure 8-9 This embodiment includes all the structures of Embodiment 1, and the swing head assembly for the multi-wire cutting machine is equipped with two clamping cylinders 3. Each clamping cylinder 3 is equipped with a piston rod 30, and a return spring is sleeved on the piston rod 30. The return spring pulls the piston rod 30 tight in its natural state. The top of the material plate 63 is provided with two slots 630, and the top of the swing seat 62 is provided with two openings. The piston rod 30 of each clamping cylinder 3 passes through the opening and is installed in the corresponding slot 630 of the swing seat 62. The housing of the clamping cylinder 3 is fixed to the top of the swing seat 62. A material-adhesive plate 64 is installed at the bottom of the material plate 63. The workpiece A is placed on the bottom surface of the material-adhesive plate 64. The material-adhesive plate 64 provides stable support, so that the workpiece A can be firmly installed on the bottom surface of the material plate 63.

[0060] In this implementation, the top of the material plate 63 is provided with two slots 630 for receiving the piston rod 30 of the clamping cylinder 3. The slots 630 penetrate the top surface of the material plate 63. During installation, the workpiece A and the adhesive plate 64 are first installed in place. One end of the slot 630 of the material plate 63 is aligned with the piston rod 30 of the clamping cylinder 3. The end of the piston rod 30 is designed as a flange structure, which can be locked in the slot 630. At this time, the piston rod 30 can slide along the slot 630 to move the material plate 63 behind the cutting line of the roller. By controlling the piston rod 30 to move upward, the workpiece A is positioned.

[0061] Since workpiece A is mounted on material plate 63 via adhesive plate 64, and material plate 63 is suspended in the U-shaped opening of rocker seat 62 via piston rod 30 of clamping cylinder 3, when the return spring of clamping cylinder 3 returns upward, it moves material plate 63, adhesive plate 64, and workpiece A upward together. This design ensures that the top of material plate 63 is in contact with the top of the inside of the U-shaped opening of rocker seat 62, thereby tightening material plate 63 and forming an effective clamping structure. This avoids vibration of material plate 63 caused by contact between workpiece and cutting tool during the cutting process. Through the control of piston rod 30, clamping cylinder 3 provides efficient and uniform clamping force. This design ensures stable positioning of workpiece throughout the cutting process, greatly reducing cutting errors caused by insufficient clamping or loose material plate.

[0062] The structure of this embodiment, by controlling the piston rod of the clamping cylinder and coordinating the tension of the return spring, can efficiently and evenly provide clamping force, ensuring stable positioning of workpiece A throughout the cutting process. The fixed design of the material plate and workpiece effectively avoids material plate vibration caused by contact between the workpiece and the cutting tool during cutting, thereby improving cutting accuracy. The flange structure and the groove allow the piston rod of the clamping cylinder to move flexibly, accurately positioning the workpiece and improving processing quality.

[0063] The working principle of the swing head assembly for a multi-wire cutting machine of this invention is as follows:

[0064] The oscillating head assembly for multi-wire cutting machines is mounted on an external lifting mechanism via an oscillating mounting base 40. The lifting mechanism, through precise control, moves the entire oscillating head assembly up and down, achieving vertical positioning and precise adjustment of the workpiece. A roller with a cutting wire is located below the oscillating head assembly. The cutting wire performs the cutting operation through the roller's wheel system. This oscillating head assembly uses a synchronous belt drive system to achieve the reciprocating oscillation of the workpiece, thus realizing precise oscillating cutting. For hard and brittle workpieces (such as ceramics and glass), excessive stress concentration must be avoided during cutting to prevent breakage due to excessive pressure or uneven cutting force. The design purpose of oscillating cutting is to reduce vibration and impact during cutting by evenly distributing the cutting force applied to the workpiece surface, keeping the workpiece stable during cutting and preventing cracks and breakage.

[0065] The servo reducer transmits power to the pulley assembly 2 via its output shaft. The drive pulley 20 drives the synchronous belt 21, ensuring precise power transmission to the rocker seat assembly 6. This causes the rocker seat assembly to rotate smoothly along the bearing assembly 5 on the rocker fixed seat assembly 4. Workpiece A is loaded into the U-shaped opening of the rocker seat assembly 6 and fixed in the rocker seat by a mounting plate, ensuring the workpiece's cutting part is exposed to prevent misoperation. The material plate 63 is suspended in the U-shaped opening of the rocker seat assembly 6 by the piston rod of the clamping cylinder and a return spring, ensuring the material plate does not shift. The adhesive plate 64 provides additional support, firmly fixing the workpiece in place.

[0066] The precise design of the entire system ensures the stability and synchronization of power transmission, while reducing energy loss caused by vibration and friction, improving cutting accuracy and work efficiency, and effectively avoiding cracking and damage to hard and brittle workpieces caused by vibration or uneven force during the cutting process.

[0067] The above description is merely an embodiment of this utility model, and common knowledge regarding specific structures and characteristics is not described in detail here. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A swing head assembly for a multi-wire cutting machine, characterized in that, include: The swing fixing seat assembly (4) has a U-shaped structure with an opening facing downwards and an opening at the top; The rocking seat assembly (6) has a U-shaped structure with an opening facing downward and is nested in the U-shaped structure of the rocking fixed seat assembly (4). The two sides of the U-shaped structure of the rocking seat assembly (6) are rotatably connected to the two sides of the U-shaped structure of the rocking fixed seat assembly (4) through a bearing assembly (5). The workpiece mounting plate is disposed in the U-shaped opening of the rocker seat assembly (6), and a workpiece is mounted on its bottom. The cut part of the workpiece after installation is exposed outside the U-shaped structure of the rocker fixed seat assembly (4) and the rocker seat assembly (6) and is located above the roller cutting line. Clamping cylinder (3) is mounted on the rocker seat assembly (6), and its piston rod is clamped to the workpiece mounting plate. A drive mechanism (1) is disposed on the upper part of the swing fixing seat assembly (4); The pulley assembly (2) includes a drive pulley (20) and a timing belt (21). The drive pulley (20) is mounted on the output shaft of the drive mechanism (1). The timing belt is wrapped around the drive pulley (20) and its two ends are connected to the rocker seat assembly (6) through the top opening of the rocker fixed seat assembly (4). It is used to pull the rocker seat assembly (6) to rock under the drive of the drive pulley (20).

2. The oscillating head assembly for a multi-wire cutting machine according to claim 1, characterized in that, The swing fixing seat assembly (4) includes a swing fixing seat (40), a guide wheel mounting plate (41), and a drive mechanism mounting plate (42). The swing fixing seat (40) adopts a U-shaped structure with the opening facing downward, and the top surface of the U-shaped structure is provided with a drive mechanism mounting plate (42). The drive mechanism mounting plate (42) is provided with a space opening for the clamping cylinder (3) to swing back and forth. The guide wheel mounting plate (41) is provided between the space opening and the drive mechanism mounting plate (42).

3. The oscillating head assembly for a multi-wire cutting machine according to claim 2, characterized in that, The rocker seat assembly (6) includes a pressure cap (60), a belt fixing seat (61), and a rocker seat (62); wherein the rocker seat (62) adopts a U-shaped structure with the opening facing downward, and the top of the rocker seat (62) is provided with an arc-shaped belt fixing seat (61), and the two ends of the synchronous belt (21) are fixed on the belt fixing seat (61) by the pressure cap (60).

4. The oscillating head assembly for a multi-wire cutting machine according to claim 3, characterized in that, The workpiece mounting plate includes a material plate (63) and a material sticking plate (64); the material plate (63) is suspended inside the U-shaped structure of the rocker seat (62) by the piston rod of the clamping cylinder (3), and the material sticking plate (64) is fixedly installed at the bottom of the material plate (63).

5. The oscillating head assembly for a multi-wire cutting machine according to claim 4, characterized in that, Two clamping cylinders (3) are provided, and two slots (630) are provided on the top of the material plate (63). The piston rod of each clamping cylinder (3) passes through the rocker seat (62) and is installed in the corresponding slot (630), and the slot (630) penetrates the top surface of the material plate (63).

6. The oscillating head assembly for a multi-wire cutting machine according to claim 2, characterized in that, The drive mechanism (1) includes a servo motor (10) and a servo reducer (11), wherein the output shaft of the servo motor (10) is connected to the input shaft of the servo reducer (11); the servo reducer (11) is fixed on the drive mechanism mounting plate (42) by its housing, and its output shaft passes through the drive mechanism mounting plate (42).

7. The oscillating head assembly for a multi-wire cutting machine according to claim 6, characterized in that, The pulley assembly (2) also includes guide wheels (22); there are two guide wheels (22) installed on the guide wheel mounting plate (41), the drive wheel (20) is installed on the output shaft of the servo reducer (11), the synchronous belt (21) is arranged around the drive wheel (20), and its two ends are respectively fixed to the rocker seat assembly (6) after surrounding the guide wheel (22).

8. The oscillating head assembly for a multi-wire cutting machine according to claim 3, characterized in that, The lower part of the U-shaped structure of the swing fixing seat (40) and the swing seat (62) is provided with through bearing assembly mounting holes.

9. The oscillating head assembly for a multi-wire cutting machine according to claim 8, characterized in that, The bearing assembly (5) includes a rotating shaft (50) and a bearing (53); wherein, a T-shaped hole and an I-shaped hole are respectively provided in the lower part of the U-shaped structure of the rocker seat (62) and the rocker fixed seat (40), the bearing (53) is installed in the I-shaped hole, one end of the rotating shaft (50) is a flange face, and the flange face is tightly fitted with the shape of the T-shaped hole, and the other end of the rotating shaft (50) is rotatably connected to the bearing (53) in the I-shaped hole on the rocker fixed seat (40) through the T-shaped hole.

10. The oscillating head assembly for a multi-wire cutting machine according to claim 9, characterized in that, The bearing assembly (5) further includes an inner pressure cover (51) and an outer end cover (52); wherein the inner pressure cover (51) and the outer end cover (52) are respectively installed on both sides of the I-shaped hole, and the inner pressure cover (51) is sleeved on the rotating shaft (50).

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