Positioning and clamping structure for ring swaging machine

Abstract

The utility model provides a kind of positioning and clamping structure for ring forging machining machine tool, belong to ring forging machining equipment field, including processing table, it is characterized by: processing table center position has driving element, driving element includes the turntable in the upper end of workbench, turntable is plum blossom structure;The outer surface of turntable has multiple inner expanding parts, and the inner expanding part is in circumferential array on processing table, and the end of inner expanding part away from turntable is in abutment with the inner surface of ring forging, the utility model is applicable to positioning and clamping to ring forging, by driving motor drives plum blossom turntable rotation, its outer surface pushes the inner expanding part of circumferential array and slide along the radial sliding slot, and the end of inner expanding part away from turntable is in abutment with the inner surface of ring forging, only single driving element is needed, avoid multiple driving collaborative problem, realize ring forging uniform stress, circle center accurate positioning.

Description

Technical Field

[0001] This utility model relates to the field of ring forging processing equipment, and specifically to a positioning and clamping structure for a ring forging machine tool. Background Technology

[0002] In the field of ring forging machining, the positioning and clamping structure plays a crucial role. Its main function is to firmly fix the ring forging, ensure the accuracy and stability during the machining process, and provide a reliable foundation for subsequent cutting, grinding and other machining operations.

[0003] In existing technologies, some ring forging machine tools employ multiple driving components to clamp the ring forging through outward expansion of their positioning and clamping structures, such as in patent CN202420802866.3. The initial design intent was to achieve uniform force fixation of the ring forging through multi-drive coordination. However, due to differences in the power output characteristics (such as motor speed and torque) of each driving component, or limited coordination accuracy of the control system, multiple driving components are prone to lag or inconsistent speeds during clamping. For example, when some driving components have completed outward expansion and contacted the ring forging, other driving components may still be in motion, resulting in uneven force on the ring forging. This forces the ring forging to shift towards the side first contacted by the driving component, ultimately causing a center positioning deviation and affecting key accuracy indicators such as coaxiality and roundness in subsequent processing. Utility Model Content

[0004] In view of this, the present invention provides a positioning and clamping structure for a ring forging machine tool. The structure can be driven by a drive motor to rotate a plum blossom-shaped turntable. Its outer surface pushes the inner expansion member of the circumferential array to slide radially along the slide groove. The inner expansion member is far from the turntable end and abuts against the inner surface of the ring forging. Only a single drive member is required, avoiding the problem of multiple drive coordination, and realizing uniform force on the ring forging and accurate positioning of the center.

[0005] To address the aforementioned technical problems, this utility model provides a positioning and clamping structure for a ring forging machine tool, including a machining table. A driving component is positioned at the center of the machining table. The driving component includes a quincunx-shaped turntable located at the upper end of the machining table. Multiple inner expanders are arranged in a circular array on the outer surface of the turntable, with one end of the inner expander abutting against the inner surface of the ring forging. This design allows the driving component to move the inner expanders through the rotation of the turntable, thereby achieving the clamping operation of the ring forging and facilitating its machining.

[0006] A slot is cut into the center of the machining table, and the driving component, specifically a drive motor, is installed within this slot. One end of the turntable is connected to the output end of the drive motor. The connection between the drive motor output end and the turntable has a self-locking structure, such as a ratchet and pawl self-locking mechanism. This mechanical self-locking structure is independent of the motor control system. Even if the motor fails or there is a power outage, the ratchet and pawl can still maintain the clamping force, preventing loss of machining accuracy or safety accidents. The drive motor, as the power source, drives the turntable to rotate through its output end, providing power support for the entire machining process.

[0007] The inner expander is slidably mounted on the machining table, which has a groove. A sliding rod is located on the side of the inner expander closest to the machining table, and the sliding rod can slide within the groove. The cooperation between the groove and the sliding rod allows the inner expander to slide radially along the machining table, thereby achieving adjustment of its position.

[0008] A reset component is located on the side of the slide near the drive component, with one end connected to the slide rod. The function of the reset component is to pull the slide rod through its own elastic force when the drive component stops working or when the inner expansion component needs to be reset, so that the inner expansion component returns to its initial position, ensuring the stability and repeatability of the machining table structure. The reset component can be made of springs or similar materials.

[0009] Both ends of the inner expander are arc-shaped, with the end closer to the turntable contacting the outer surface of the turntable. This arc-shaped design helps the inner expander slide smoothly along the outer surface of the turntable as it rotates, reducing frictional resistance and making its movement more stable. Simultaneously, the end of the inner expander furthest from the drive component has an anti-slip layer. This layer increases the friction between the inner expander and the inner surface of the ring forging, preventing relative sliding between them during machining and ensuring the accuracy and reliability of the machining operation.

[0010] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0011] 1. Stable positioning and clamping: A single driving component drives the plum blossom-shaped turntable and the inner expansion component of the circumferential array to move, avoiding uneven force and center positioning deviation caused by multi-drive coordination. This ensures uniform force and accurate center positioning when the ring forging is clamped, improving the accuracy indicators such as machining coaxiality and roundness.

[0012] 2. Smooth operation: The arc-shaped structure at both ends of the inner expansion part reduces the frictional resistance between it and the turntable, making its movement smooth; the sliding rod and the sliding groove cooperate to realize the radial sliding of the inner expansion part, which can adapt to the clamping requirements of ring forgings of different sizes.

[0013] 3. Convenient and reliable reset: The reset component (such as a spring) inside the slide can pull the inner expansion component to restore the initial position when the drive component stops working, ensuring structural stability and repeatability.

[0014] 4. Excellent anti-slip performance: The anti-slip layer at the end of the inner expansion part away from the driving part increases the friction with the inner surface of the ring forging part, preventing relative sliding during processing and ensuring processing accuracy and reliability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of a positioning and clamping structure for a ring forging machine tool according to the present invention; Figure 2 This is a top view of the structure of this utility model; Figure 3 This is a cross-sectional view of the slotted structure of this utility model.

[0016] Explanation of reference numerals in the attached drawings: 1. Processing table; 2. Drive component; 3. Turntable; 4. Inner expansion component; 5. Slot; 6. Slide groove; 7. Slide rod; 8. Reset component; 9. Anti-slip layer. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-3 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0018] like Figure 1 , 2 As shown in Figure 3: This embodiment provides a positioning and clamping structure for a ring forging machine tool, including a machining table 1, with a driving member 2 positioned at the center of the machining table 1. The driving member 2 includes a quincunx-shaped turntable 3 located at the upper end of the machining table 1. The turntable 3 has a quincunx-shaped structure, and its outer surface is provided with multiple inner expansion members 4. These inner expansion members 4 are arranged in a circumferential array on the machining table 1, and their ends away from the turntable 3 can abut against the inner surface of the ring forging. With this design, the driving member 2 can drive the inner expansion members 4 to move by rotating the turntable 3, thereby realizing the clamping operation of the ring forging and providing stable support for the processing operation of the ring forging.

[0019] like Figure 1 , 3 As shown: A slot 5 is provided at the center of the processing table 1, and the driving component 2, specifically a drive motor, is installed in the slot 5. One end of the turntable 3 is connected to the output end of the drive motor. The drive motor, as a power source, drives the turntable 3 to rotate through the rotation of its output end, providing power support for the entire processing process, enabling the turntable 3 to rotate in a set direction and speed, thereby driving the inner expansion component 4 to move.

[0020] like Figure 2 , 3 As shown: The inner expander 4 is slidably mounted on the machining table 1, which has a groove 6. A sliding rod 7 is located on the side of the inner expander 4 closest to the machining table 1, and the sliding rod 7 can slide within the groove 6. The groove 6 and the sliding rod 7 cooperate to allow the inner expander 4 to slide along the radial direction of the machining table 1, thereby adjusting the position of the inner expander 4. When the turntable 3 rotates, the inner expander 4, pushed by the turntable 3, moves radially through the sliding of the sliding rod 7 within the groove 6 to accommodate the clamping requirements of ring forgings of different sizes.

[0021] like Figure 1 , 2 As shown in Figure 3: A reset element 8 is provided on the side of the slide groove 6 near the drive element 2, with one end of the reset element 8 connected to the slide rod 7. The function of the reset element 8 is to pull the slide rod 7 with its own elastic force when the drive element 2 stops working or when the inner expansion part 4 needs to be reset, so that the inner expansion part 4 returns to its initial position, ensuring the stability and repeatability of the processing table 1 structure. The reset element 8 can be made of elastic elements such as springs. When the inner expansion part 4 is pushed outward by the drive element 2, the reset element 8 is stretched or compressed, storing elastic potential energy; when the drive element 2 stops rotating and loses its pushing force on the inner expansion part 4, the reset element 8 releases its elastic potential energy, pulls the slide rod 7, and causes the inner expansion part 4 to move along the slide groove 6 towards the drive element 2, returning to its initial position.

[0022] like Figure 1 , 2 As shown in Figure 3: Both ends of the inner expander 4 are arc-shaped, with the end closer to the turntable 3 abutting against the outer surface of the turntable 3. This arc-shaped design helps the inner expander 4 slide smoothly along the outer surface of the turntable 3 as it rotates, reducing frictional resistance and making its movement more stable. Simultaneously, an anti-slip layer 9 is provided at the end of the inner expander 4 furthest from the drive component 2. This anti-slip layer 9 increases the friction between the inner expander 4 and the inner surface of the ring forging, preventing relative sliding between the inner expander 4 and the ring forging during processing, ensuring the accuracy and reliability of the processing operation.

[0023] Working Principle: The drive motor, acting as the driving component 2, is installed in the slot 5 at the center of the machining table 1, and its output end is connected to the plum blossom-shaped turntable 3. When the drive motor operates, it drives the turntable 3 to rotate, and the protrusions on the outer surface of the plum blossom-shaped turntable 3 push the inner expansion components 4, which are arranged in a circular array, to move. The inner expansion component 4 slides in the slide groove 6 of the machining table 1 via its sliding rod 7 on the side closest to the machining table 1, moving outward in the radial direction of the machining table 1. At this time, the reset component 8 (such as a spring) on ​​the side of the slide groove 6 closest to the driving component 2 is stretched or compressed, storing elastic potential energy. The two ends of the inner expansion component 4 are arc-shaped structures. The end closest to the turntable 3 abuts against the outer surface of the turntable 3. When rotating, the arc-shaped structure reduces frictional resistance, making the inner expansion component 4 move smoothly. The anti-slip layer 9 on the end furthest from the driving component 2 abuts against the inner surface of the ring forging, thereby increasing friction to clamp and fix the ring forging, providing stable support for the machining operation. After processing is completed, the drive motor stops working, the reset component 8 releases its elastic potential energy, pulls the slide bar 7, and causes the inner expansion component 4 to move along the slide groove 6 towards the drive component 2, returning to the initial position and releasing the ring forging.

[0024] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A positioning and clamping structure for a ring forging machine tool, comprising a machining table (1), characterized in that: The processing table (1) has a driving component (2) at its center. The driving component (2) includes a turntable (3) located at the upper end of the processing table (1). The turntable (3) has a plum blossom-shaped structure. The outer surface of the turntable (3) has a plurality of inner expansion members (4), which are arranged in a circular array on the processing table (1). The end of the inner expansion member (4) away from the turntable (3) abuts against the inner surface of the ring forging.

2. The positioning and clamping structure for a ring forging machine tool as described in claim 1, characterized in that: The processing table (1) has a slot (5) at its center. The drive component (2) is located in the slot (5). The drive component (2) is a drive motor. One end of the turntable (3) is connected to the output end of the drive motor.

3. The positioning and clamping structure for a ring forging machine tool as described in claim 2, characterized in that: The inner expansion member (4) is slidably disposed on the processing table (1).

4. The positioning and clamping structure for a ring forging machine tool as described in claim 3, characterized in that: The processing table (1) has a sliding groove (6), and the inner expansion member (4) has a sliding rod (7) on the side near the processing table (1), and the sliding rod (7) slides in the sliding groove (6).

5. The positioning and clamping structure for a ring forging machine tool as described in claim 4, characterized in that: The slide groove (6) has a reset member (8) on the side near the drive member (2), and one end of the reset member (8) is connected to the slide rod (7).

6. The positioning and clamping structure for a ring forging machine tool as described in claim 5, characterized in that: Both ends of the inner expansion member (4) are arc-shaped structures, and the end of the inner expansion member (4) near the turntable (3) abuts against the outer surface of the turntable (3).

7. The positioning and clamping structure for a ring forging machine tool as described in claim 6, characterized in that: The inner expansion member (4) has an anti-slip layer (9) at the end away from the driving member (2).

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