A special wire tightening device for wire cutting machine tool

Abstract

The utility model discloses a special wire tightening device for wire cutting machine tools, comprising a base and a third fixing frame, a rear surface of the above-mentioned second fixing frame is fixedly connected with a latch, a card slot is arranged inside the latch, a first slide slot is arranged inside the third fixing frame, a second slide slot is arranged inside the third fixing frame, a groove bottom of the second slide slot is fixedly connected with a spring, an end of the spring away from the groove bottom of the second slide slot is fixedly connected with a block, and a pull rod is slidably connected inside the third fixing frame. By inserting the latch into the first slide slot, the latch drives the block to slide to both sides. When the latch slides to the groove bottom of the first slide slot, the block engages with the slot under the action of the spring. When disassembling, the pull rod is pulled, and the pull rod drives the block to slide, so that the latch loses the limit of the block, thereby achieving the effect of quick installation and disassembly, and also has the effect of facilitating the individual replacement of parts, reducing the use cost of equipment, and increasing the flexibility of equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of wire cutting machine tools, in particular to a special wire tightening device for wire cutting machine tools. Background Art

[0002] The working principle of wire cutting machine is based on electric spark discharge machining. Wire cutting machine removes metal materials through the principle of electric spark discharge to process parts. In this processing method, molybdenum wire or copper wire is usually used as electrode tool and connected to the negative pole of high-frequency pulse power supply, while the workpiece is connected to the positive pole of power supply. It is a high-precision and flexible processing method that can process various complex and precise metal parts.

[0003] When the existing wire cutting machine is in use, the molybdenum wire will lose its tension due to thermal elongation and wear. The loss of tension of the molybdenum wire affects the processing accuracy and stability. Therefore, a wire tensioning device is required. However, the existing wire tensioning device is mostly integrated with the wire cutting machine, which makes the inspection and maintenance of the wire cutting device more troublesome. In addition, the wire tensioning device is easily damaged after long-term use. When replaced, only the entire equipment can be replaced, which increases the maintenance cost. After searching, it was found that the technical solution provided by the utility model with application number CN202222198132.2 also has the above-mentioned problems. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a special wire tightening device for a wire cutting machine. By inserting a pin into a first slide groove, the pin drives a clamping block to slide to both sides. When the pin slides to the bottom of the first slide groove, the clamping block engages with the clamping groove under the action of a spring. When disassembling, the pull rod is pulled, and the pull rod drives the clamping block to slide, so that the pin loses the limit of the clamping block, thereby achieving the effect of quick installation and disassembly, and also has the effect of facilitating the replacement of parts separately, reducing the use cost of the equipment, and increasing the flexibility of the equipment.

[0005] The utility model also provides a special wire tightening device for a wire cutting machine tool, a base, a third fixed frame, the upper surface of the base is fixedly connected to the first fixed frame, the first fixed frame is slidably connected to the first slider, the first slider is threadedly connected to the first threaded rod, the upper end of the first threaded rod is fixedly connected to the second fixed frame, the side surface of the first slider is fixedly connected to the second fixed frame, the second fixed frame is provided with a first wire wheel, and the upper surface of the base is fixedly connected to the wire barrel;

[0006] The rear surface of the second fixed frame is fixedly connected with a latch, a slot is provided inside the latch, a first slide slot is provided inside the third fixed frame, a second slide slot is provided inside the third fixed frame, a spring is fixedly connected to the bottom of the second slide slot, an end of the spring away from the bottom of the second slide slot is fixedly connected to a block, a pull rod is slidably connected inside the third fixed frame, a second slider is slidably connected inside the third fixed frame, a second threaded rod is threadedly connected inside the second slider, a motor is fixedly connected to the lower surface of the third fixed frame, and a second wire pulley is fixedly provided on the front surface of the second slider.

[0007] According to the special wire tightening device for a wire cutting machine, the output end of the motor is fixedly connected to the second threaded rod, and the interior of the third fixing frame is rotatably connected to the second threaded rod.

[0008] According to the wire tightening device dedicated to a wire cutting machine tool, the outer surface of the latch is slidably connected to the first sliding groove, and the outer surface of the clamping block is slidably connected to the clamping groove.

[0009] According to the special wire tightening device for wire cutting machine tools, the right end of the pull rod is fixedly connected to the limiting rod, the right surface of the third fixed frame is fixedly connected to the limiting block, the inner surface of the limiting block is slidably connected to the limiting rod, and the cooperation between the limiting rod and the limiting block can be used to prevent the spring from loosening during operation.

[0010] According to the special wire tightening device for a wire cutting machine tool, the left end of the pull rod is slidably connected to the clamping block, and the outer surface of the clamping block is slidably connected to the second sliding groove.

[0011] According to the wire tightening device dedicated to a wire cutting machine, the lower surface of the knob is rotatably connected to the first fixed frame, the outer surface of the first threaded rod is rotatably connected to the first fixed frame, and the height of the second fixed frame can be adjusted by the cooperation between the first threaded rod and the first slider.

[0012] According to the wire tightening device for wire cutting machine tools, the number of the first wire wheels is multiple and distributed in a linear array, and the number of the second fixing frames is two and distributed symmetrically.

[0013] According to the special wire tightening device for wire cutting machine tools, the motor is electrically connected to an external power supply.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 This is the overall structural diagram of a special wire tightening device for wire cutting machine tools of the utility model;

[0017] Figure 2 This is a sectional view of the overall structure of a special wire tightening device for a wire cutting machine tool according to the utility model;

[0018] Figure 3 It is a partial structural explosion of a wire tightening device dedicated to a wire cutting machine tool of the utility model;

[0019] Figure 4 This is a partial structural cross-sectional view of a wire tightening device dedicated to a wire cutting machine tool of the utility model;

[0020] Figure 5 for Figure 4 A schematic diagram of the enlarged structure in the middle.

[0021] Legend:

[0022] 1. Base; 2. First fixed frame; 3. First slider; 4. First threaded rod; 5. Knob; 6. Second fixed frame; 7. First wire pulley; 8. Wire guide tube; 9. Latch; 10. Third fixed frame; 11. First slide slot; 12. Second slide slot; 13. Spring; 14. Block; 15. Pull rod; 16. Second slider; 17. Second threaded rod; 18. Motor; 19. Second wire pulley; 20. Slot; 21. Limit rod; 22. Limit block. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] Reference Figure 1-5 The utility model embodiment is a special wire tightening device for a wire cutting machine tool, which includes a base 1 and a third fixed frame 10. The upper surface of the base 1 is fixedly connected to the first fixed frame 2, and the first slider 3 is slidably connected inside the first fixed frame 2. The first slider 3 is internally threadedly connected to the first threaded rod 4, and the outer surface of the first threaded rod 4 is rotatably connected to the first fixed frame 2. The upper end of the first threaded rod 4 is fixedly connected to a knob 5, and the lower surface of the knob 5 is rotatably connected to the first fixed frame 2. The side surface of the first slider 3 is fixedly connected to the second fixed frame 6. The number of the second fixed frames 6 is two and they are symmetrically distributed. The second fixed frame 6 is provided with a first wire wheel 7. The number of the first wire wheels 7 is multiple and they are distributed in a linear array. The upper surface of the base 1 is fixedly connected to a wire barrel 8.

[0025] The rear surface of the second fixing frame 6 is fixedly connected with a latch 9, a slot 20 is provided inside the latch 9, a first slide slot 11 is provided inside the third fixing frame 10, an outer surface of the latch 9 is slidably connected with the first slide slot 11, a second slide slot 12 is provided inside the third fixing frame 10, a spring 13 is fixedly connected to the bottom of the second slide slot 12, a block 14 is fixedly connected to the end of the spring 13 away from the bottom of the second slide slot 12, an outer surface of the block 14 is slidably connected with the second slide slot 12, an outer surface of the block 14 is slidably connected with the slot 20, a pull rod 15 is slidably connected inside the third fixing frame 10, and the left end of the pull rod 15 is slidably connected with the block 14 The third fixed frame 10 is dynamically connected, the interior of the third fixed frame 10 is slidably connected to the second slider 16, the interior of the second slider 16 is threadedly connected to the second threaded rod 17, the interior of the third fixed frame 10 is rotatably connected to the second threaded rod 17, the lower surface of the third fixed frame 10 is fixedly connected to the motor 18, the motor 18 is electrically connected to the external power supply, the output end of the motor 18 is fixedly connected to the second threaded rod 17, the front surface of the second slider 16 is fixedly provided with a second wire wheel 19, the right end of the pull rod 15 is fixedly connected to the limiting rod 21, the right surface of the third fixed frame 10 is fixedly connected to the limiting block 22, and the inner surface of the limiting block 22 is slidably connected to the limiting rod 21.

[0026] Working principle: when it is necessary to install the wire tightening device, insert the pin 9 into the first slide groove 11, the pin 9 touches the inclined surface of the block 14 to drive the block 14 to move to both sides, when the pin 9 slides to the bottom of the first slide groove 11, the block 14 loses the extrusion of the end of the pin 9, and the spring 13 drives the block 14 to slide, so that the block 14 is stuck in the slot 20, and the limit rod 21 is rotated to make the limit rod 21 stuck in the limit block 22. When disassembly is required, the limit rod 21 is rotated and the pull rod 15 is pulled to make the slot 20 lose the restriction of the block 14, and the motor 18 is started. The motor 18 drives the second threaded rod 17 to rotate, and the rotation of the second threaded rod 17 drives the second wire wheel 19 to slide. The second wire wheel 19 slides up and down to control the tension between the molybdenum wires.

[0027] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A wire tightening device for a wire cutting machine tool, characterized in that: include: A base (1), a third fixing frame (10), the upper surface of the base (1) is fixedly connected to the first fixing frame (2), the first fixing frame (2) is internally slidably connected to the first slider (3), the first slider (3) is internally threadedly connected to the first threaded rod (4), the upper end of the first threaded rod (4) is fixedly connected to the knob (5), the side surface of the first slider (3) is fixedly connected to the second fixing frame (6), the second fixing frame (6) is internally provided with a first wire wheel (7), and the upper surface of the base (1) is fixedly connected to the wire barrel (8); The rear surface of the second fixing frame (6) is fixedly connected with a latch (9), a slot (20) is arranged inside the latch (9), a first slide slot (11) is arranged inside the third fixing frame (10), a second slide slot (12) is arranged inside the third fixing frame (10), a spring (13) is fixedly connected to the bottom of the second slide slot (12), an end of the spring (13) away from the bottom of the second slide slot (12) is fixedly connected with a block (14), a pull rod (15) is slidably connected inside the third fixing frame (10), a second slider (16) is slidably connected inside the third fixing frame (10), a second threaded rod (17) is threadedly connected inside the second slider (16), a motor (18) is fixedly connected to the lower surface of the third fixing frame (10), and a second wire pulley (19) is fixedly arranged on the front surface of the second slider (16).

2. The wire tightening device for wire cutting machine tool according to claim 1, characterized in that: The output end of the motor (18) is fixedly connected to the second threaded rod (17), and the interior of the third fixing frame (10) is rotatably connected to the second threaded rod (17).

3. The wire tightening device for wire cutting machine tool according to claim 1, characterized in that: The outer surface of the latch pin (9) is slidably connected to the first sliding groove (11), and the outer surface of the clamping block (14) is slidably connected to the clamping groove (20).

4. The wire tightening device for wire cutting machine tool according to claim 1, characterized in that: The right end of the pull rod (15) is fixedly connected to a limiting rod (21), the right surface of the third fixing frame (10) is fixedly connected to a limiting block (22), and the inner surface of the limiting block (22) is slidably connected to the limiting rod (21).

5. The wire tightening device for wire cutting machine tool according to claim 1, characterized in that: The left end of the pull rod (15) is slidably connected to the clamping block (14), and the outer surface of the clamping block (14) is slidably connected to the second sliding groove (12).

6. The wire tightening device for wire cutting machine tool according to claim 1, characterized in that: The lower surface of the knob (5) is rotatably connected to the first fixing frame (2), and the outer surface of the first threaded rod (4) is rotatably connected to the first fixing frame (2).

7. The wire tightening device for wire cutting machine tool according to claim 1, characterized in that: The number of the first wire wheels (7) is multiple and distributed in a linear array, and the number of the second fixing frames (6) is two and distributed symmetrically.

8. The wire tightening device for wire cutting machine tool according to claim 1, characterized in that: The motor (18) is electrically connected to an external power source.

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