Special table top A / B shaft cradle for spark machine
By designing a dedicated A/B axis cradle for EDM machines, and utilizing the combination of arc-shaped slides, transverse swing arms, and longitudinal swing arms, along with a servo motor drive mechanism, the cradle can swing in multiple directions within the EDM machine. This solves the problem of insufficient working fluid contact caused by the single-axis swing of existing cradles, and improves processing efficiency.
Patent Information
- Application Number
- CN202520066087.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-11
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-11
AI Technical Summary
The existing cradle can only swing on a single axis, resulting in insufficient contact between the working fluid and the workpiece.
A special A/B axis cradle for EDM machines was designed. Through the coordinated use of an arc-shaped slide, a horizontal swing arm, a vertical swing arm, and a drive mechanism for the horizontal and vertical swing arms, the A/B axis swing is achieved through the design of the arc-shaped slide and the horizontal swing arm. Combined with a servo motor drive mechanism, the cradle can swing in multiple directions within the EDM machine. The multi-directional swing of the cradle is achieved through the coordinated use of the arc-shaped slide, the horizontal swing arm, and the drive mechanism for the vertical swing arm, and through the internal sliding connection of the arc-shaped slide.
This allows the cradle to swing in multiple directions within the EDM machine, enhancing the contact between the working fluid and the workpiece and improving processing efficiency.
Smart Images

Figure CN223889085U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of EDM technology, specifically to a dedicated table A / B axis cradle for EDM machines. Background Technology
[0002] Electrical discharge machining (EDM) is a type of machining equipment primarily used for electrical discharge machining. It is widely used in the manufacture of various metal molds and mechanical equipment. EDM utilizes the electro-erosion effect generated by pulsed discharge between two electrodes immersed in a working fluid to remove conductive materials. It is also known as electrical discharge machining or electro-erosion machining. When placing the workpiece in an EDM machine, a suitable cradle is required.
[0003] Currently, existing cradles are limited by their structure and can only swing around a single axis inside the EDM machine. This swinging method results in a small range of motion, which is not conducive to the working fluid fully contacting the workpiece to be processed. Utility Model Content
[0004] To address the problem that existing cradles can only swing along a single axis, this invention provides a table-mounted A / B axis cradle specifically designed for EDM machines.
[0005] In view of the above problems, the technical solution proposed by this utility model is as follows:
[0006] A special A / B axis cradle for an EDM machine includes a platform basin. An arc-shaped groove is formed on the inner wall of the platform basin. A transverse swing frame is provided inside the arc-shaped groove. The transverse swing frame includes a semi-ring frame body. The semi-ring frame body is slidably connected inside the arc-shaped groove. A toothed protrusion is mounted on the bottom surface of the semi-ring frame body. A gear is rotatably connected inside the platform basin. The top surface of the gear meshes with the bottom surface of the toothed protrusion. A longitudinal swing frame is rotatably connected inside the transverse swing frame. A drive mechanism is provided on the side of the transverse swing frame near the longitudinal swing frame. The drive mechanism includes a worm and a worm wheel. The worm and worm wheel are rotatably connected to both sides of the transverse swing frame, respectively. The worm and worm wheel mesh with each other. One end of the worm wheel is fitted onto one side of the longitudinal swing frame.
[0007] Furthermore, a second servo motor is installed on one side of the outer wall of the platform. The output end of the second servo motor extends into the interior of the platform and is connected to a shaft. One end of the shaft is fitted into the inside of the gear.
[0008] The beneficial effect of adopting the above-mentioned further solution is that the shaft is driven to rotate in both directions by the output end of the second servo motor, so that the shaft can drive the gear to reciprocate at a specified angle.
[0009] Furthermore, the longitudinal swing frame includes a frame body, and axle posts are respectively installed on both sides of the outer wall of the frame body, and the axle posts are located inside the worm gear.
[0010] The beneficial effect of adopting the above-mentioned further solution is that, through the positional relationship between the shaft pile and the worm gear, the worm gear can drive the longitudinal swing frame to rotate while rotating.
[0011] Furthermore, seepage holes are respectively provided on both sides of the outer wall of the frame.
[0012] The beneficial effect of adopting the above-mentioned further solution is that the working fluid can be easily permeated inside and outside the frame body by setting the permeation holes.
[0013] Furthermore, a gap is provided between the bottom surface of the frame and the inner wall of the semi-ring frame.
[0014] The beneficial effect of adopting the above-mentioned further solution is that, by setting the spacing, it is convenient for the frame body 3001 to rotate inside the semi-ring frame body 2001.
[0015] Furthermore, the drive mechanism also includes a first servo motor, the output end of which extends into the interior of the transverse swing frame and is connected to one end of the worm gear for transmission.
[0016] The beneficial effect of adopting the above-mentioned further solution is that the worm gear 4002 is driven to rotate in both directions by the output end of the first servo motor, so that the worm gear can drive the worm wheel to achieve forward and reverse rotation.
[0017] Furthermore, a valve is connected to one side of the outer wall of the pool, and one end of the valve is flush with the bottom of the pool.
[0018] The advantage of adopting the above-mentioned further solution is that the working fluid inside the tank can be easily replaced through the connection of the valve.
[0019] Compared with the prior art, the beneficial effects of this utility model are:
[0020] This type of EDM-specific table A / B axis cradle, through the coordinated use of an arc-shaped slide, a transverse swing frame, a longitudinal swing frame, and a drive mechanism, allows the cradle to swing in different directions along the A / B axes within the EDM machine. This ensures sufficient contact between the working fluid and the workpiece. Specifically, by driving the gears to rotate in both directions and through the meshing relationship between the gears and the convex teeth, the rotating gears drive the semi-ring frame to reciprocate within the arc-shaped slide. Furthermore, by driving the worm to rotate in both directions and through the meshing relationship between the worm and the worm wheel, the worm wheel drives the longitudinal swing frame to reciprocate vertically within the transverse swing frame, thus facilitating the cradle's swing in different directions. Attached Figure Description
[0021] Figure 1 A three-dimensional schematic diagram of an A / B axis cradle for a dedicated EDM machine table provided by this utility model;
[0022] Figure 2 A cross-sectional view of the table basin of a special table for an EDM machine with A / B axes provided by this utility model;
[0023] Figure 3 A cross-sectional view of the transverse swing frame of the A / B axis cradle for a dedicated EDM table provided by this utility model;
[0024] Figure 4 A schematic diagram of the longitudinal swing frame of the A / B axis cradle for a dedicated EDM table provided by this utility model;
[0025] Figure 5 A cross-sectional view of the drive mechanism of the A / B axis cradle for a dedicated EDM machine table provided by this utility model.
[0026] In the diagram: 100, platform; 200, transverse swing frame; 2001, semi-ring frame; 2002, convex tooth; 2003, gear; 2004, shaft; 300, longitudinal swing frame; 3001, frame body; 3002, shaft pile; 3003, seepage hole; 400, drive mechanism; 4001, first servo motor; 4002, worm gear; 4003, worm wheel; 500, second servo motor; 600, arc-shaped slide; 700, valve. Detailed Implementation
[0027] 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.
[0028] Example 1
[0029] Please see Figures 1-5This utility model provides a technical solution: a special table A / B axis cradle for EDM machines, including a table 100. An arc-shaped groove 600 is formed on the inner wall of the table 100. A transverse swing frame 200 is provided inside the arc-shaped groove 600. The transverse swing frame 200 includes a semi-ring frame 2001, which is slidably connected inside the arc-shaped groove 600. A tooth 2002 is mounted on the bottom surface of the semi-ring frame 2001. A gear 2003 is rotatably connected inside the table 100, with the top surface of the gear 2003 meshing with the bottom surface of the tooth 2002. A longitudinal swing frame 300 is rotatably connected inside the transverse swing frame 200. A drive mechanism 400 is provided on the side of the transverse swing frame 200 near the longitudinal swing frame 300. The drive mechanism 400 includes a worm gear 4002 and a worm wheel 4003. The worm gear 4002 and worm wheel 4003 are rotatably connected to the two sides of the interior of the transverse swing frame 200, respectively. The worm gear 4002 and worm wheel 4003 mesh with each other. One end of the worm wheel 4003 is fitted to one side of the longitudinal swing frame 300. By causing the gear 2003 to rotate forward and backward, and with the meshing relationship between the gear 2003 and the convex tooth 2002, the rotating gear 2003 can drive the semi-ring frame 2001 to reciprocate within the arc-shaped slide groove 600. By causing the worm gear 4002 to rotate forward and backward, and with the meshing relationship between the worm gear 4002 and the worm wheel 4003, the worm wheel 4003 can drive the longitudinal swing frame 300 to reciprocate vertically within the transverse swing frame 200, thus facilitating the cradle to swing in different directions.
[0030] 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.
[0031] Example 2
[0032] Please see Figures 1-5As an embodiment of this utility model, a second servo motor 500 is further installed on one side of the outer wall of the pool 100. The output end of the second servo motor 500 extends into the interior of the pool 100 and is connected to a shaft 2004. One end of the shaft 2004 is internally fitted into a gear 2003. The output end of the second servo motor 500 drives the shaft 2004 to rotate in both directions, so that the shaft 2004 can drive the gear 2003 to reciprocate at a specified angle. The longitudinal swing frame 300 includes a frame body 3001. Shaft posts 3002 are respectively installed on both sides of the outer wall of the frame body 3001. The shaft posts 3002 are located inside the worm gear 4003. Through the positional relationship between the shaft posts 3002 and the worm gear 4003, the worm gear 4003 can drive the longitudinal swing frame 300 to rotate while rotating. The outer walls of the frame body 3001 are respectively provided with seepage holes 3003. The seepage holes 3003 facilitate the permeation of working fluid inside and outside the frame body 3001.
[0033] Example 3
[0034] Please see Figures 1-5 As an embodiment of this utility model, a gap is provided between the bottom surface of the frame 3001 and the inner wall of the semi-ring frame 2001. The gap facilitates the rotation of the frame 3001 inside the semi-ring frame 2001. The drive mechanism 400 also includes a first servo motor 4001. The output end of the first servo motor 4001 extends into the interior of the transverse swing frame 200 and is connected to one end of the worm gear 4002. The output end of the first servo motor 4001 drives the worm gear 4002 to rotate in both directions, so that the worm gear 4002 can drive the worm wheel 4003 to rotate in both directions. A valve 700 is connected to one side of the outer wall of the platform 100. One end of the valve 700 is flush with the bottom of the platform 100. The use of the valve 700 facilitates the replacement of the working fluid inside the platform 100.
[0035] Specifically, the working principle of this EDM-specific table A / B axis cradle is as follows: First, check the cradle's structure for integrity. After ensuring the structure is intact, place the workpiece to be processed into the frame 3001. Then, by activating the second servo motor 500, its output drives the shaft 2004 to rotate in both directions. This causes the shaft 2004 to drive the gear 2003 to reciprocate at a specified angle, facilitating the forward and reverse rotation of the gear 2003. Combined with the meshing relationship between the gear 2003 and the convex tooth 2002, the rotating gear 2003... It can drive the semi-ring frame 2001 to reciprocate within the arc-shaped slide groove 600. Then, by starting the first servo motor 4001, its output end drives the worm gear 4002 to rotate in both directions, causing the worm gear 4002 to drive the worm wheel 4003 to rotate in both directions. With the meshing connection between the worm gear 4002 and the worm wheel 4003, and through the positional relationship between the shaft 3002 and the worm wheel 4003, the worm wheel 4003 can drive the longitudinal swing frame 300 to reciprocate vertically within the transverse swing frame 200 while rotating.
Claims
1. A special table A / B axis cradle for EDM machines, characterized in that, The device includes a pool (100), the inner wall of which is provided with an arc-shaped groove (600). A transverse swing frame (200) is provided inside the arc-shaped groove (600). The transverse swing frame (200) includes a semi-ring frame (2001). The semi-ring frame (2001) is slidably connected inside the arc-shaped groove (600). A toothed protrusion (2002) is mounted on the bottom surface of the semi-ring frame (2001). A gear (2003) is rotatably connected inside the pool (100). The top surface of the gear (2003) meshes with the bottom surface of the toothed protrusion (2002). The transverse swing frame (200) is rotatably connected to the longitudinal swing frame (300). The transverse swing frame (200) has a drive mechanism (400) on one side near the longitudinal swing frame (300). The drive mechanism (400) includes a worm (4002) and a worm wheel (4003). The worm (4002) and the worm wheel (4003) are rotatably connected to the two sides inside the transverse swing frame (200), respectively. The worm (4002) and the worm wheel (4003) mesh with each other. One end of the worm wheel (4003) is fitted and connected to one side of the longitudinal swing frame (300).
2. The A / B axis cradle for a dedicated EDM table according to claim 1, characterized in that, A second servo motor (500) is installed on one side of the outer wall of the pool (100). The output end of the second servo motor (500) extends into the interior of the pool (100) and is connected to a shaft (2004). One end of the shaft (2004) is fitted into the gear (2003).
3. The A / B axis cradle for a dedicated EDM table according to claim 1, characterized in that, The longitudinal swing frame (300) includes a frame body (3001), and axle posts (3002) are respectively installed on both sides of the outer wall of the frame body (3001), and the axle posts (3002) are located inside the worm gear (4003).
4. The A / B axis cradle for a dedicated EDM table according to claim 3, characterized in that, The outer wall of the frame (3001) is provided with seepage holes (3003) on both sides.
5. The A / B axis cradle for a dedicated EDM table according to claim 4, characterized in that, A gap is provided between the bottom surface of the frame body (3001) and the inner wall of the semi-ring frame body (2001).
6. The A / B axis cradle for a dedicated EDM table according to claim 1, characterized in that, The drive mechanism (400) also includes a first servo motor (4001), the output end of which extends into the interior of the transverse swing frame (200) and is connected to one end of the worm gear (4002) for transmission.
7. The A / B axis cradle for a dedicated EDM machine table according to claim 1, characterized in that, A valve (700) is connected to one side of the outer wall of the pool (100), and one end of the valve (700) is flush with the bottom of the pool (100).