A wire guide mechanism of a medium-speed wire cut electrical discharge machine

Abstract

The utility model relates to wire cutting machine tool technical field discloses a guide mechanism of middle wire electric spark wire cutting machine tool, including fixed block, the bottom fixed connection of fixed block has the sliding rod, the surface sliding connection of sliding rod bottom has the moving block, the inside rotationally connected of moving block and fixed block has the rotation sleeve, the inside of rotation sleeve has and inserts the fixed sleeve, the inside sliding connection of fixed sleeve has telescopic component, the bottom fixed connection of fixed block has two groups of stabilizer, two groups stabilizer and the bottom of sliding rod are all screw -threaded connection and have adjustment assembly, telescopic component includes the telescopic link of sliding connection in the inside of fixed sleeve. The guide mechanism of middle wire electric spark wire cutting machine tool, reach the effect of convenient disassembly and assembly guide wheel through the setting of telescopic component, avoid guide wheel wear and tear serious time, reduce the downtime of equipment maintenance, improved the convenience of guide mechanism.

Description

Technical Field

[0001] This utility model relates to the field of wire EDM machine tool technology, and in particular to a wire guide mechanism for a medium-speed wire EDM machine tool. Background Technology

[0002] The wire guide mechanism is a key component of a medium-speed wire EDM machine, primarily responsible for stably and accurately feeding the electrode wire (usually a metal wire) into the machining area to achieve the cutting operation. In a medium-speed wire EDM machine, the electrode wire is fed into the working area from the wire holder end with the assistance of the wire guide mechanism and then guided through the machining area by the guide rollers. When the electrode wire contacts the workpiece surface, it generates a spark through electrical discharge, gradually cutting the workpiece. The wire guide mechanism not only ensures smooth wire feeding but also controls the wire tension through a tensioning device, preventing a decrease in cutting accuracy due to excessive tension or slack.

[0003] However, when the guide wheels of existing medium-speed wire EDM machines are severely worn, it is difficult to replace them and it is not easy to disassemble and assemble the guide wheels, which prolongs the downtime for equipment maintenance and reduces production and maintenance efficiency. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] The purpose of this utility model is to provide a wire guide mechanism for a medium-speed wire EDM machine, which solves the problem mentioned in the background art that the existing wire guide mechanism of the medium-speed wire EDM machine is difficult to replace when the guide wheel is severely worn, and it is difficult to conveniently disassemble and assemble the guide wheel, which prolongs the downtime for equipment maintenance and reduces production and maintenance efficiency.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a wire guiding mechanism for a medium-speed wire EDM machine, comprising a fixed block, a sliding rod fixedly connected to the bottom of the fixed block, a moving block slidably connected to the bottom surface of the sliding rod, a rotating sleeve rotatably connected inside both the moving block and the fixed block, a fixed sleeve inserted inside the rotating sleeve, a telescopic assembly slidably connected inside the fixed sleeve, two sets of stabilizing rods fixedly connected to the bottom of the fixed block, and adjusting assemblies threadedly connected to the bottom of both sets of stabilizing rods and the sliding rod, the telescopic assembly comprising a telescopic rod slidably connected inside the fixed sleeve, a limiting ring sleeved on the surface of the telescopic rod, and a support spring fixedly connected to one side of the limiting ring; the adjusting assembly comprising a threaded sleeve threadedly connected to the bottom of the sliding rod, a buffer spring fixedly connected to the top of the threaded sleeve, and a support ring fixedly connected to the top of the buffer spring.

[0008] As a further embodiment of this utility model, a guide wheel is fitted onto the surface of the fixed sleeve, and a number of sets of balls are slidably connected to one end of the fixed sleeve in a circular array.

[0009] As a further embodiment of this utility model, one end of the rotating sleeve is fixedly connected to a socket, and the socket has several sets of slots adapted to the ball bearings.

[0010] As a further embodiment of this utility model, a sliding ring is slidably connected to the surface of the stabilizer bar, a fixing spring is fixedly connected to the top of the sliding ring, and the fixing spring is fixedly connected to the bottom of the fixing block.

[0011] As a further embodiment of this utility model, a support plate is fixedly connected to one side of the fixing block, and two sets of fixing ears are fixedly connected to both sides of the support plate.

[0012] As a further embodiment of this utility model, a box body is fixedly installed on one side of the fixing ear by bolts, and a box door is hinged to the front of the box body by a hinge.

[0013] As a further embodiment of this utility model, an electrode wire is sleeved on the surface of the guide wheel, and a groove adapted to the ball is opened at one end of the telescopic rod.

[0014] (III) Beneficial Effects

[0015] This utility model provides a wire guiding mechanism for a medium-speed wire EDM machine, which has the following advantages:

[0016] 1. The wire guide mechanism of this medium-speed wire EDM machine, through the setting of the telescopic component, allows for easy removal of the guide wheel when it is necessary to disassemble it. Pressing the telescopic rod causes it to slide within the fixed sleeve, which in turn drives the limit ring to retract the support spring. This causes the ball bearing to fall into the groove at one end of the telescopic rod, disengaging from the slot on the socket. The fixed sleeve can then be pulled out, thus removing the guide wheel. When installation is required, the fixed sleeve is inserted into the rotating sleeve and socket, and the telescopic rod is released. The elastic force of the support spring, which restores its deformation, pushes the telescopic rod, causing the ball bearing to re-enter the slot on the socket. This achieves convenient removal and installation of the guide wheel, avoiding the difficulty of replacement when the guide wheel is severely worn, reducing equipment downtime for maintenance, and improving the convenience of the wire guide mechanism.

[0017] 2. The wire guide mechanism of this medium-speed wire EDM machine, through the adjustment of the component settings, allows for adjustment of the extension and retraction of the fixed spring. Rotating the threaded sleeve causes it to rotate on the sliding rod, compressing the buffer spring. This causes the buffer spring to contract under force, pushing the support ring. The support ring then pushes the moving block, which slides on the stabilizing rod and pushes the sliding ring, further compressing the fixed spring. This achieves the effect of adjusting the extension and retraction of the fixed spring, thereby changing the clamping force on the electrode wire. This prevents the electrode wire from being thinned or damaged due to excessive spring force, and reduces the risk of abnormal wear on the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the disassembled structure of this utility model. Figure 1 ;

[0020] Figure 3 This is a schematic diagram of the disassembled structure of this utility model. Figure 2 ;

[0021] Figure 4 This is a schematic diagram of the telescopic component structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the adjustment component structure of this utility model.

[0023] In the diagram: 1. Fixed block; 2. Sliding rod; 3. Moving block; 4. Rotating sleeve; 5. Fixed sleeve; 6. Telescopic assembly; 601. Telescopic rod; 602. Limiting ring; 603. Support spring; 7. Adjusting assembly; 701. Threaded sleeve; 702. Buffer spring; 703. Support ring; 8. Stabilizing rod; 9. Guide wheel; 10. Ball bearing; 11. Socket; 12. Sliding ring; 13. Fixed spring; 14. Support plate; 15. Fixed lug; 16. Box body; 17. Box door. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0025] Please see Figures 1 to 4This utility model provides a technical solution: a wire guiding mechanism for a medium-speed wire EDM machine, including a fixed block 1, a sliding rod 2 fixedly connected to the bottom of the fixed block 1, a moving block 3 slidably connected to the bottom surface of the sliding rod 2, a rotating sleeve 4 rotatably connected inside both the moving block 3 and the fixed block 1, a fixed sleeve 5 inserted inside the rotating sleeve 4, and a telescopic component 6 slidably connected inside the fixed sleeve 5. The telescopic component 6 facilitates the easy disassembly and assembly of the guide wheel 9, avoiding the difficulty of replacement when the guide wheel 9 is severely worn, reducing downtime for equipment maintenance, and improving the convenience of the wire guiding mechanism. Two sets of stabilizing rods 8 are fixedly connected to the bottom of the fixed block 1, and the two sets of stabilizing rods 8 and the sliding rod 2 are slidably connected to the sliding rod 2. The bottom of rod 2 is threaded with an adjustment component 7. By setting the adjustment component 7, the extension and retraction of the fixed spring 13 can be adjusted, thereby changing the clamping force on the electrode wire. This avoids the electrode wire being thinned or damaged due to excessive spring force, and at the same time reduces the risk of abnormal wear of the equipment. The telescopic component 6 includes a telescopic rod 601 slidably connected inside the fixed sleeve 5. A limit ring 602 is sleeved on the surface of the telescopic rod 601. A support spring 603 is fixedly connected to one side of the limit ring 602. The adjustment component 7 includes a threaded sleeve 701 threadedly connected to the bottom of the sliding rod 2. A buffer spring 702 is fixedly connected to the top of the threaded sleeve 701. A support ring 703 is fixedly connected to the top of the buffer spring 702.

[0026] The surface of the fixed sleeve 5 is fitted with a guide wheel 9, and one end of the fixed sleeve 5 is slidably connected with several sets of balls 10 in a circular array. The arrangement of the balls 10 facilitates the limiting function.

[0027] One end of the rotating sleeve 4 is fixedly connected to a socket 11. The socket 11 has several sets of slots that are compatible with the ball bearing 10. The slots facilitate the insertion and fixing of the ball bearing 10.

[0028] A sliding ring 12 is slidably connected to the surface of the stabilizer bar 8. A fixing spring 13 is fixedly connected to the top of the sliding ring 12. The fixing spring 13 is fixedly connected to the bottom of the fixing block 1. The fixing spring 13 serves to buffer the tension and keep the electrode wire stable.

[0029] A support plate 14 is fixedly connected to one side of the fixing block 1, and two sets of fixing ears 15 are fixedly connected to both sides of the support plate 14. The fixing ears 15 facilitate positioning and installation.

[0030] The box body 16 is fixedly installed on one side of the fixed ear 15 by bolts. The front of the box body 16 is hinged to the door 17, which serves to close the box body 16.

[0031] Electrode wires are sleeved on the surface of the guide wheel 9, and a groove is provided at one end of the telescopic rod 601 to match the ball 10. The groove facilitates the sliding of the ball 10.

[0032] In this invention, the working steps of the device are as follows:

[0033] First step: When it is necessary to disassemble the guide wheel 9, press the telescopic rod 601 so that the telescopic rod 601 slides in the fixed sleeve 5 and drives the limit ring 602 to push the support spring 603 to retract, so that the ball 10 falls into the groove at one end of the telescopic rod 601 and disengages from the slot on the socket 11, thereby pulling out the fixed sleeve 5 and removing the guide wheel 9.

[0034] Second step: When installation is required, insert the fixing sleeve 5 into the rotating sleeve 4 and the socket 11, and release the telescopic rod 601. Use the elastic force of the support spring 603 to restore the deformation and push the telescopic rod 601 so that the ball 10 is re-engaged into the slot on the socket 11.

[0035] Third step: When it is necessary to adjust the extension and retraction of the fixed spring 13, rotate the threaded sleeve 701 so that the threaded sleeve 701 rotates on the sliding rod 2 and squeezes the buffer spring 702, causing the buffer spring 702 to contract under force, thereby pushing the support ring 703. The support ring 703 pushes the moving block 3, causing the moving block 3 to slide on the stabilizer 8 and push the sliding ring 12, thereby squeezing the fixed spring 13.

[0036] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0037] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0038] 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. A wire guiding mechanism for a medium-speed wire EDM machine, comprising a fixing block (1), characterized in that: The bottom of the fixed block (1) is fixedly connected to a sliding rod (2), and the surface of the bottom of the sliding rod (2) is slidably connected to a moving block (3). The inside of the moving block (3) and the fixed block (1) are both rotatably connected to a rotating sleeve (4). The inside of the rotating sleeve (4) is inserted into a fixed sleeve (5). The inside of the fixed sleeve (5) is slidably connected to a telescopic component (6). The bottom of the fixed block (1) is fixedly connected to two sets of stabilizing rods (8), and the bottom of the two sets of stabilizing rods (8) and the sliding rod (2) are both threadedly connected to an adjusting component (7). The telescopic assembly (6) includes a telescopic rod (601) slidably connected inside the fixed sleeve (5), a limiting ring (602) is sleeved on the surface of the telescopic rod (601), and a support spring (603) is fixedly connected to one side of the limiting ring (602). The adjustment assembly (7) includes a threaded sleeve (701) threaded to the bottom of the sliding rod (2), a buffer spring (702) fixedly connected to the top of the threaded sleeve (701), and a support ring (703) fixedly connected to the top of the buffer spring (702).

2. The wire guiding mechanism of a medium-speed wire EDM machine according to claim 1, characterized in that: The surface of the fixed sleeve (5) is fitted with a guide wheel (9), and one end of the fixed sleeve (5) is slidably connected with several sets of balls (10) in a ring array.

3. The wire guiding mechanism of a medium-speed wire EDM machine according to claim 1, characterized in that: One end of the rotating sleeve (4) is fixedly connected to a socket (11), and the socket (11) has several sets of slots that are compatible with the ball (10).

4. The wire guiding mechanism of a medium-speed wire EDM machine according to claim 1, characterized in that: The surface of the stabilizer bar (8) is slidably connected to a sliding ring (12), and a fixing spring (13) is fixedly connected to the top of the sliding ring (12). The fixing spring (13) is fixedly connected to the bottom of the fixing block (1).

5. The wire guiding mechanism of a medium-speed wire EDM machine according to claim 1, characterized in that: A support plate (14) is fixedly connected to one side of the fixed block (1), and two sets of fixing ears (15) are fixedly connected to both sides of the support plate (14).

6. The wire guiding mechanism of a medium-speed wire EDM machine according to claim 5, characterized in that: The box body (16) is fixedly installed on one side of the fixed ear (15) by bolts, and the box body (16) has a door (17) hinged to the front of the box body (16).

7. The wire guiding mechanism of a medium-speed wire EDM machine according to claim 2, characterized in that: The guide wheel (9) is fitted with an electrode wire, and one end of the telescopic rod (601) is provided with a groove that matches the ball (10).

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