Automatic sealing mechanism of turnover machining center exchange worktable

Abstract

The utility model discloses a kind of automatic sealing mechanisms of turnover plate machining center exchange workbench, including fixed arm being fixedly installed on the outer frame of workbench, sealing door assembly connection is on swing arm, spring is installed on the articulated axle of fixed arm and swing arm and carries out pre-tightening debugging, the spring's elastic coefficient adapts workbench motion stroke and the force required for sealing door switch, rigid connection between dial and swing arm, yoke is fixedly connected with workbench and end surface and dial contact, the utility model relates to turnover plate machining center exchange workbench technical field, its core innovation lies in that the power of multiplex workbench itself exchange movement, realize the adaptive switch of sealing door;Initiative power reuse design, completely discard additional power source, compact structure and transmission precision, by spring pre-tightening force and the mechanical cooperation of yoke-dial, realize the adaptive switch of sealing door, action response is quick, sealing effect is stable, effectively avoid chip and coolant intrusion.

Description

Technical Field

[0001] This utility model relates to the technical field of exchange worktables in flip-plate machining centers, specifically an automatic sealing mechanism for an exchange worktable in a flip-plate machining center. Background Technology

[0002] With the rapid development of my country's aviation manufacturing industry, the demand for flip-plate machining centers is increasing. Flip-plate machining centers have vertically arranged worktables, offering superior chip removal performance and significantly higher machining accuracy, surface finish, dynamic performance, and processing efficiency compared to horizontally arranged worktables. However, the vertical structure of the worktable presents a unique sealing challenge: during worktable exchanges, chips and coolant generated during machining can easily seep into the back of the worktable, causing wear, corrosion, or jamming of precision components such as the back drive assembly and guide mechanism, directly affecting the equipment's machining accuracy and service life.

[0003] Currently, the sealing solutions for exchange worktables in domestic and international flip-plate machining centers have significant defects: one type has no sealing mechanism at all, making it impossible to avoid the risk of corrosion from chips and coolant; the other type, although equipped with a sealing mechanism, relies on additional power sources such as cylinders and motors for drive, which not only leads to bulky equipment structure and complex layout, but also increases energy consumption, manufacturing costs and maintenance difficulty. Moreover, the failure probability of the additional power source is relatively high, which seriously affects the operational reliability of the sealing mechanism and makes it difficult to meet the stringent requirements for equipment stability in the aerospace manufacturing field. In view of this, in-depth research was conducted on the above problems, which led to this case. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an automatic sealing mechanism for the exchange worktable of a flip-plate machining center, which solves the structural defects of the sealing mechanism in the existing flip-plate machining center exchange worktable, namely the core pain point that "it is easily damaged without a seal and relies on additional power with a seal".

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an automatic sealing mechanism for an exchange worktable in a flip-plate machining center, comprising a fixed arm fixedly installed on the outer frame of the worktable, a sealing door assembled and connected to a swing arm, a spring installed on the hinge shaft of the fixed arm and the swing arm and pre-tightened, wherein the elastic coefficient of the spring is adapted to the worktable's movement stroke and the force required for opening and closing the sealing door, a dial wheel and a swing arm are rigidly connected, and a dial fork is fixedly connected to the worktable with its end face in contact with the dial wheel.

[0006] The aforementioned sealing door and swing arm are connected by a detachable fixed connection.

[0007] The contact end between the shift fork and the shift wheel is made of high manganese steel and has been treated for wear resistance. Beneficial effects

[0008] This utility model provides an automatic sealing mechanism for the exchange worktable of a flip-type machining center. It offers the following advantages: Addressing the structural defects of existing sealing mechanisms in flip-type machining center exchange worktables—namely, the core pain point of "easily damaged without a seal, and reliant on additional power with a seal"—this automatic sealing mechanism provides a compact, efficient, and stable design that requires no additional power source. Its core innovation lies in reusing the power generated by the worktable's own exchange motion to achieve adaptive opening and closing of the sealing door.

[0009] 1. The innovative power reuse design completely eliminates the need for additional power sources, solving the problems of complex structure, high cost, and poor reliability caused by existing sealing mechanisms relying on cylinders, motors, etc. 2. The structure is compact and the transmission is precise. Through the mechanical cooperation of spring preload and shift fork-shift wheel, the sealing door can be opened and closed adaptively. The action response is fast, the sealing effect is stable, and the intrusion of chips and coolant is effectively prevented. 3. With no additional energy consumption or maintenance requirements, it reduces equipment operating costs and failure probability, significantly improves the overall reliability of large flip-plate processing centers, and is suitable for the stringent requirements of high-precision processing scenarios such as aerospace manufacturing. Attached Figure Description

[0010] Figure 1 This is a front view structural schematic diagram of the automatic sealing mechanism of the exchange worktable of the flip-plate processing center described in this utility model.

[0011] Figure 2 This utility model Figure 1 A cross-sectional view of the AA position.

[0012] Figure 3 This utility model Figure 2 A magnified schematic diagram of the structure at position a.

[0013] Figure 4 This is a partially enlarged structural diagram of the sealed door protection of this utility model in the open state.

[0014] In the diagram: 1. Fixed arm; 2. Spring; 3. Swing arm; 4. Dial wheel; 5. Dial fork; 6. Sealing door; 7. Workbench; 8. Workbench frame. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example: Refer to the appendix of the instruction manual Figure 1-3 As can be seen, in order to solve the structural defects of the sealing mechanism in the existing flip-plate machining center exchange worktable, namely the core pain point of "easy damage without sealing and reliance on additional power with sealing", this application specifically designs an automatic sealing mechanism for the flip-plate machining center exchange worktable, including a fixed arm 1, a spring 2, a swing arm 3, a dial wheel 4, a shift fork 5, and a sealing door 6. The fixed arm 1 is firmly installed on the outer frame 8 of the worktable. The sealing door 6 is detachably fixedly connected to the swing arm 3, which is convenient for later maintenance and replacement. The spring 2 is installed between the fixed arm 1 and the swing arm 3 and is pre-tightened and adjusted. Its elastic coefficient is adapted to the worktable's movement stroke and the force required for the sealing door to open and close. The dial wheel 4 is rigidly connected to the swing arm 3 to ensure no backlash in the transmission. The shift fork 5 is fixedly connected to the worktable 7. Its contact end with the dial wheel 4 is made of high manganese steel and is treated with wear resistance to ensure the transmission reliability for long-term use.

[0017] The specific execution process of this solution during workbench exchange is as follows: Refer to the instruction manual. Figure 4 When the worktable 7 extends out of the machine tool working area, the shift fork 5, which moves synchronously with the worktable 7, gradually disengages from the shift wheel 4. At this time, the pre-tightened spring 2 releases its elastic potential energy, generating a driving force to rotate clockwise along the swing arm 3. The swing arm 3 drives the sealing door 6 to open smoothly, ensuring that the worktable 7 extends out without obstruction. When the worktable 7 completes the exchange and returns to the machine tool working area, the shift fork 5 moves in the opposite direction synchronously with the worktable 7. Its front end precisely contacts the shift wheel 4 and applies a pushing force to overcome the elastic force of the spring 2 and drive the shift wheel 4 to rotate counterclockwise. The swing arm 3 rotates synchronously with the shift wheel 4, and finally drives the sealing door 6 to fit tightly against the back of the worktable to achieve a reliable seal.

[0018] In summary, this automatic sealing mechanism features an innovative power reuse design, completely eliminating the need for an additional power source. This solves the problems of complex structure, high cost, and poor reliability associated with existing sealing mechanisms that rely on cylinders and motors. Its compact structure and precise transmission, achieved through the mechanical cooperation of spring preload and shift fork-shift wheel, enable adaptive opening and closing of the sealing door. The mechanism provides rapid response, stable sealing performance, and effectively prevents the intrusion of chips and coolant. With no additional energy consumption or maintenance requirements, it reduces equipment operating costs and the probability of failure, significantly improving the overall reliability of large-scale flip-plate machining centers and meeting the stringent requirements of high-precision machining scenarios such as the aerospace manufacturing industry.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic sealing mechanism for an exchange worktable in a flip-plate machining center, characterized in that, The system includes a fixed arm (1) fixedly installed on the outer frame (8) of the workbench, a sealing door (6) assembled and connected to the swing arm (3), a spring (2) installed on the hinge shaft of the fixed arm (1) and the swing arm (3) and pre-tightened, the elastic coefficient of the spring (2) being adapted to the workbench movement stroke and the force required for opening and closing the sealing door, a rigid connection between the dial wheel (4) and the swing arm (3), and a fork (5) fixedly connected to the workbench (7) with its end face in contact with the dial wheel (4).

2. The automatic sealing mechanism for the exchange worktable of a flip-plate machining center according to claim 1, characterized in that, The sealing door (6) and the swing arm (3) are connected by a detachable fixed connection.

3. The automatic sealing mechanism for the exchange worktable of a flip-plate machining center according to claim 1, characterized in that, The contact end between the shift fork (5) and the shift wheel (4) is made of high manganese steel and has been treated for wear resistance.

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