Wire tightening device of wire cutting machine

Abstract

The utility model relates to the technical field of wire cutting machines, in particular to a wire tightening device of a wire cutting machine, which comprises two groups of fixed seats which are distributed left and right, a screw is rotatably arranged between the fixed seats on two sides, a guide post is fixedly arranged on one side of the screw between the fixed seats on two sides, a movable seat is arranged on the guide post, and the movable seat is arranged on the movable seat. By rotating a rotating shaft, driving a worm to rotate and further driving a worm gear to rotate, a screw rod can rotate, a movable seat is driven to stably move on a guide column through threads, the position of a pulley can be adjusted, the screw rod can be prevented from deflecting through the arrangement of the worm and the worm gear, and therefore the position of the movable seat can be prevented from moving; and through the arrangement of the locking assembly, the use stability of the structure can be further improved, and the tensioning of the cutting wire is more stable.

Description

Technical Field

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

[0002] In the molybdenum wire cutting process, due to the long-term operation of the machine tool, the molybdenum wire cutting line will become loose due to fatigue, affecting the accuracy of workpiece processing. In order to solve this problem, machine tools are generally equipped with wire tightening devices. At present, many manufacturers use heavy hammer-type wire tightening devices, which use the weight of the counterweight to tighten the molybdenum wire.

[0003] Patent No. CN201620997208.X provides a wire cutting machine wire tightening device, including: a left fixed seat, a right fixed seat, a bolt hole, a guide rod, a slider, a rotating wheel, an adjustment block, an adjustment nut, a positioning hole, and a long rod. When in use, the left fixed seat and the right fixed seat are vertically installed on the support frame of the wire cutting machine by bolts. The molybdenum wire is led out from the wire conveying drum and bypasses the rotating wheel. When the molybdenum wire is fatigued, it can be connected to different positioning holes by changing the adjusting nut and changing the position of the rotating wheel to tighten the molybdenum wire. The position of the rotating wheel cannot be adjusted stably, and the locking and fixing is relatively traditional and inconvenient to operate. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a wire tightening device for a wire cutting machine.

[0006] (II) Technical solution

[0007] The cam is provided with a plurality of guide wheels, and a guide post is fixedly provided between the two fixing seats on the two sides, and a guide wheel is fixedly provided on the two fixing seats on the two sides, and a movable seat is provided on the movable seat, and a guide hole is provided on the movable seat, and the guide post is slidably connected with the guide hole, and a screw hole is provided at a corresponding position of the movable seat and the screw, and the screw hole is threadedly connected with the screw, and a pulley is rotatably provided on the front side of the movable seat, and a worm gear is rotatably provided on the right side of the fixed seat, and the worm gear is connected with the screw, and a fixed frame 1 is fixedly provided on the side wall of the fixed seat at one side of the worm gear, and a worm gear is rotatably provided on the fixed frame 1, and the worm gear is meshed with the worm gear, and a rotating shaft is rotatably provided on one side of the fixed frame 1, and a locking component for fixing the screw position is provided on the outer wall of the fixed seat on the left side.

[0008] In order to facilitate locking the screw, the utility model has improvements that the locking assembly includes a positioning wheel, a second fixing frame and a positioning block, a positioning wheel is rotatably provided on the outer wall of the fixed seat on the left side, the positioning wheel is connected to the screw, a second fixing frame is fixedly provided on the outer wall of the fixed seat on the left side at the upper and lower sides of the positioning wheel, a hydraulic cylinder is fixedly provided on the second fixing frame, a positioning block is fixedly provided on the output end of the hydraulic cylinder, and the positioning block cooperates with the positioning wheel.

[0009] In order to facilitate the operation of the rotating shaft, the utility model is improved in that a hand wheel is fixedly provided at one end of the rotating shaft.

[0010] In order to increase the stability of the movement of the moving seat, the utility model is improved in that two groups of guide columns are provided and distributed on the upper and lower sides of the screw rod.

[0011] Preferably, the improvement of the utility model is that anti-slip grooves are provided on the hand wheel.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a wire cutting machine wire tightening device, which has the following

[0014] Beneficial effects:

[0015] The wire-tightening device of the wire cutting machine drives the worm to rotate by rotating the rotating shaft, and further drives the worm wheel to rotate, so that the screw can be rotated, and the movable seat can be driven by the thread to move stably on the guide column, so that the position of the pulley can be adjusted. The setting of the worm and the worm wheel can prevent the screw from deflecting, thereby preventing the position of the movable seat from moving. The setting of the locking assembly can further improve the stability of the use of this structure, making the tension of the cutting wire more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 Another perspective structural diagram;

[0018] Figure 3 For this utility model Figure 2 Another perspective structural diagram;

[0019] Figure 4 This is a schematic diagram of the front view structure of the utility model;

[0020] In the figure: 1. fixed seat; 2. guide column; 3. movable seat; 4. screw; 5. worm gear; 6. fixed frame 1; 7. worm; 8. rotating shaft; 9. hand wheel; 10. pulley; 11. positioning wheel; 12. fixed frame 2; 13. hydraulic cylinder; 14. positioning block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 The worm gear 5 is connected with the worm gear 4 by the spring 21 and the spring 22. The worm gear 5 is connected with the worm gear 4 by the spring 22. The worm gear 5 is connected with the worm gear 4 by the spring 22. The worm gear 5 is connected with the worm gear 4 by the spring 22. The worm gear 5 is connected with the worm gear 4 by the spring 22.

[0023] By rotating the rotating shaft 8, the worm 7 is driven to rotate, and the worm wheel 5 is further driven to rotate, so that the screw 4 can be rotated, and the movable seat 3 is driven by the thread to move on the guide column 2, so that the position of the pulley 10 can be adjusted, and the cutting wire is placed on one side of the pulley 10. The pulley 10 is provided with a wire groove. By adjusting the position of the pulley 10, the cutting wire can be tensioned. By setting the worm 7 and the worm wheel 5, the screw 4 can be prevented from deflecting, thereby preventing the position of the movable seat 3 from moving. By setting the locking assembly, the stability of the use of this structure can be further improved, and the tensioning of the cutting wire can be made more stable.

[0024] The above-mentioned locking assembly can be any structure for fixing the screw 4. The present application provides an embodiment, wherein the locking assembly includes a positioning wheel 11, a second fixing frame 12 and a positioning block 14. The positioning wheel 11 is rotatably arranged on the outer wall of the fixed seat 1 on the left side, and the positioning wheel 11 is connected to the screw 4. The outer wall of the fixed seat 1 on the left side is fixedly provided with a second fixing frame 12 on the upper and lower sides of the positioning wheel 11, and a hydraulic cylinder 13 is fixedly arranged on the second fixing frame 12. A positioning block 14 is fixedly arranged on the output end of the hydraulic cylinder 13, and the positioning block 14 cooperates with the positioning wheel 11. The hydraulic cylinder 13 pushes the positioning block 14 so that the positioning block 14 presses the positioning wheel 11 tightly, thereby fixing the screw 4, thereby preventing the moving seat 3 from shifting.

[0025] The rotating shaft 8 needs to be easy to operate when in use. In order to meet the above requirement, a hand wheel 9 is fixedly provided at one end of the rotating shaft 8 .

[0026] The above structure requires that the moving seat 3 has good stability when in use. In order to meet the above requirement, two groups of guide columns 2 are provided and distributed on the upper and lower sides of the screw rod 4.

[0027] In this embodiment, the hand wheel 9 is provided with anti-slip grooves.

[0028] In the description of this article, it should be noted that relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wire tightening device for a wire cutting machine, comprising a fixing seat (1), wherein the fixing seat (1) is provided with two groups and distributed on the left and right, and characterized in that: A screw rod (4) is rotatably arranged between the fixed seats (1) on both sides, a guide column (2) is fixedly arranged between the fixed seats (1) on both sides and located on one side of the screw rod (4), a movable seat (3) is arranged on the guide column (2), a guide hole is arranged on the movable seat (3), the guide column (2) is slidably connected to the guide hole, a screw hole is arranged at a position corresponding to the movable seat (3) and the screw rod (4), the screw hole is threadedly connected to the screw rod (4), and a pulley (2) is rotatably arranged on the front side of the movable seat (3) 10), the right side of the fixed seat (1) is rotatably provided with a worm wheel (5), the worm wheel (5) is connected to the screw (4), the side wall of the fixed seat (1) is located on one side of the worm wheel (5) and is fixedly provided with a fixing frame (6), a worm (7) is rotatably provided on the fixing frame (6), the worm (7) is meshed with the worm wheel (5), a rotating shaft (8) is rotatably provided on one side of the fixing frame (6), and a locking component for fixing the position of the screw (4) is provided on the outer wall of the left side of the fixed seat (1).

2. A wire tightening device for a wire cutting machine according to claim 1, characterized in that: The locking assembly comprises a positioning wheel (11), a second fixing frame (12) and a positioning block (14); the positioning wheel (11) is rotatably arranged on the outer wall of the left fixing seat (1); the positioning wheel (11) is connected to the screw rod (4); the second fixing frame (12) is fixedly arranged on the outer wall of the left fixing seat (1) at the upper and lower sides of the positioning wheel (11); a hydraulic cylinder (13) is fixedly arranged on the second fixing frame (12); a positioning block (14) is fixedly arranged at the output end of the hydraulic cylinder (13); the positioning block (14) cooperates with the positioning wheel (11).

3. A wire tightening device for a wire cutting machine according to claim 2, characterized in that: A hand wheel (9) is fixedly arranged at one end of the rotating shaft (8).

4. A wire tightening device for a wire cutting machine according to claim 3, characterized in that: The guide posts (2) are provided in two groups and are distributed on the upper and lower sides of the screw rod (4).

5. A wire tightening device for a wire cutting machine according to claim 4, characterized in that: The hand wheel (9) is provided with anti-slip grooves.

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