Automatic wire tightening mechanism of linear cutting machine tool

Abstract

The utility model discloses an automatic wire tightening mechanism of a wire cutting machine, which relates to the field of wire cutting machines, and adopts the technical scheme that the automatic wire tightening mechanism comprises a wire cutting machine body and a cutting wire mounted on the wire cutting machine body, a wire tightening box is arranged outside the cutting wire, and an L-shaped connecting plate is welded at the top of the wire tightening box; the wire tightening box is fixed to the wire cutting machine body through a connecting plate screw, a first wire tightening wheel and a second wire tightening wheel are arranged in the wire tightening box, arranged up and down and located on the two sides of a cutting wire respectively, a first straightening piece is arranged between the first wire tightening wheel and the top wall of the wire tightening box, and a second straightening piece is arranged between the second wire tightening wheel and the top wall of the wire tightening box. And a second straightening part is arranged between the second wire tightening wheel and the bottom wall of the wire tightening box, and the first straightening part and the second straightening part are perpendicularly arranged in the height direction, so that the effects of rapid tensioning adjustment, multiple straightening structures and good tensioning adjustment stability are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to wire cutting machine technical field, concretely is a wire cutting machine automatic tight line mechanism. BACKGROUND

[0002] Wire cutting machine is created and invented by the electric spark processing method when the Lazarenko couple discovers that the instantaneous high temperature of electric spark can make local metal melt, oxidize and be corroded from the phenomenon and reason of switch contact point damage by spark erosion, but the electrode wire is easy to relax after long time use, and if not timely adjustment, the electrode wire may be broken, the existing electrode wire is all adjusted through manual, but manual has instability, cannot supervise the electrode wire in real time, and frequent manual detection not only wastes manpower but also is too troublesome.

[0003] For the above problems, in the existing patent CN202111527339.3 provides a kind of wire cutting machine electrode wire tensioner, including horizontal plate and fixed seat, the both ends of the horizontal plate are fixedly connected with vertical frame by fixed block, the bottom of the vertical frame is provided with screw groove, the screw groove is internally threadedly connected with screw cover, the screw cover is fixedly connected with push spring by fixed block at the side of vertical frame inner chamber, the present application relates to wire cutting technical field.The wire cutting machine electrode wire tensioner, wire guide wheel and tight line wheel are arranged on the equipment, and wire guide wheel is connected to push spring by connecting rod, and tight line wheel is connected with square screw thread cylinder, these structures cooperate with the effect of first button and second button to adjust electrode wire twice, avoid staff from not timely inspection due to time reason and lead to electrode wire breakage, provide convenience for staff, reduce the loss of electrode wire, greatly improve the practicability of equipment.

[0004] But there is only tensioning adjustment structure in the above structure, and cutting wire may exist deviation after relaxation in cutting vibration process, so direct tensioning adjustment may exist slip phenomenon due to the position of tensioning wheel unchanged. Utility model content

[0005] The utility model aims at providing a kind of wire cutting machine bed automatic tight line mechanism that quick tensioning adjustment and multiple straightening structure are equipped, and tensioning adjustment stability is good.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] The wire cutting machine body and the cutting wire installed on the wire cutting machine body are provided with a wire tightening box outside, an L-shaped connecting plate is welded on the top of the wire tightening box, the wire tightening box is fixed on the wire cutting machine body through the connecting plate screw, the first wire tightening wheel and the second wire tightening wheel are arranged inside the wire tightening box, the first wire tightening wheel and the second wire tightening wheel are arranged in an up-down mode and are respectively located on the two sides of the cutting wire, the first straightening part is arranged between the first wire tightening wheel and the top wall of the wire tightening box, the second straightening part is arranged between the second wire tightening wheel and the bottom wall of the wire tightening box, and the first straightening part and the second straightening part are arranged in a vertical mode in the height direction.

[0008] Further, the top and bottom of the wire tightening box are provided with a waist-shaped groove for the cutting wire to pass out. By adopting the above technical scheme, the cutting wire is conveniently guided out, and the waist-shaped groove provides a moving stroke to avoid the cutting wire being interfered when moving.

[0009] Further, the first wire tightening wheel side is provided with a first support sliding between the inner walls of the wire tightening box, the first wire tightening wheel rotates in the first support, the first support side is fixed with a sliding rod, the sliding rod end away from the first support extends out along the surface of the wire tightening box, the sliding rod extending end is fixed with a fixed plate, the sliding rod outside is provided with a spring, one end of the spring is fixed on the first support, and the other end is fixed on the inner wall of the wire tightening box.

[0010] Further, the second wire tightening wheel outside is provided with a second support, the second support is rotatably connected with the second wire tightening wheel, and the second support end away from the wire tightening box is fixed with an air cylinder.

[0011] By adopting the above technical scheme, the second support is ejected by the air cylinder, so that the second wire tightening wheel interferes with the side of the cutting wire, and the depth of the second wire tightening wheel is controlled by the air cylinder, so that when the cutting wire is loose, the second wire tightening wheel can be adjusted to extend into the cutting wire to make it tight, and the tight force interferes with the side of the first wire tightening wheel above, so that the spring is compressed, the spring has a reset elastic potential, and then reacts on the cutting wire to make the cutting wire further tensioned, and the combination of the two wire tightening wheels can quickly adjust the tension.

[0012] Further, the first straightening part comprises a moving rod sliding on the side of the wire tightening box, the moving rod outside is rotatably provided with a first straightening wheel, the moving rod is symmetrically arranged about the wire tightening box, the moving rod end away from the first straightening wheel is threadedly connected with a lead screw, the lead screw outside is provided with a fixed box, the lead screw rotates in the fixed box, one end of the lead screw extends out of the fixed box, and the extending end is connected with a servo motor.

[0013] By adopting the above technical scheme, the cutting line is clamped between the two first straightening wheels, straightening is performed through clamping, the cutting line entering the lower tight line structure is kept vertical, tight line is facilitated, the distance between the two first straightening wheels and the first tight line wheel is adjusted, the two first straightening wheels are also adjusted to be staggered, the straightening effect is improved, the straightening stroke is lengthened in the staggered state, and normal tight line is further ensured.

[0014] Further, the second straightening member comprises rotating rods rotatably connected inside the tight line box, the rotating rods are symmetrically provided with two, and the rotating rods are externally fixed with second straightening wheels.

[0015] By adopting the above technical scheme, the second straightening wheel is arranged to perform straightening, the cutting line is kept in a vertical state after extending out of the tight line box, and the two second straightening wheels are in a same-height clamping state, so that subsequent cutting is ensured to work normally.

[0016] In summary, the beneficial technical effects of the utility model are as follows:

[0017] 1. The first tight line wheel and the second tight line wheel are adopted, the second support is pushed out through the driving of the air cylinder, the second tight line wheel is abutted against the side surface of the cutting line, the depth of the second tight line wheel is controlled by the air cylinder, the second tight line wheel is adjusted to extend into and abut against the cutting line when the cutting line is loose, the cutting line is further tensioned, the upper and lower tight line wheels are arranged, and the tension is quickly adjusted; 2. The first straightening wheel is adopted, the cutting line is clamped between the two first straightening wheels, straightening is performed through clamping, the cutting line entering the lower tight line structure is kept vertical, tight line is facilitated, the distance between the two first straightening wheels and the first tight line wheel is adjusted, the two first straightening wheels are also adjusted to be staggered, the straightening effect is improved, the straightening stroke is lengthened in the staggered state, and normal tight line is further ensured;

[0018] 3. The second straightening wheel is adopted, the second straightening wheel is arranged to perform straightening, the cutting line is kept in a vertical state after extending out of the tight line box, and the two second straightening wheels are in a same-height clamping state, so that subsequent cutting is ensured to work normally. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the utility model, constitute part of the specification, and do not constitute limitation to the utility model. In the drawings:

[0020] Figure 1 It is a structure schematic view of the automatic tight line mechanism of the wire cutting machine tool provided by the embodiment;

[0021] Figure 2 is a tight line box structure schematic diagram of a line cutting machine automatic tight line mechanism provided by the embodiment;

[0022] Figure 3 is a middle part section view schematic diagram of a line cutting machine automatic tight line mechanism provided by the embodiment;

[0023] Figure 4 is a middle part section view schematic diagram of a line cutting machine automatic tight line mechanism provided by the embodiment.

[0024] In the figure, 1, line cutting machine body; 2, cutting line; 3, tight line box; 4, connecting plate; 5, first tight line wheel; 6, second tight line wheel; 7, waist type groove; 8, first support; 9, sliding rod; 10, fixed plate; 11, spring; 12, second support; 13, air cylinder; 14, moving rod; 15, first straightening wheel; 16, lead screw; 17, fixed box; 18, servo motor; 19, rotating rod; 20, second straightening wheel. DETAILED DESCRIPTION

[0025] The utility model will be described in further detail below in combination with the drawings.

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] Please refer to Figures 1-4 The utility model provides technical scheme: including line cutting machine body 1 and cutting line 2 installed on line cutting machine body 1, cutting line 2 outside is equipped with tight line box 3, and tight line box 3 top is welded with L type connecting plate 4, and tight line box 3 is fixed on line cutting machine body 1 through connecting plate 4 screw, the inside of tight line box 3 is equipped with first tight line wheel 5 and second tight line wheel 6, and first tight line wheel 5 and second tight line wheel 6 are set up upside down and are located at the both sides of cutting line 2, and first straightening piece is equipped between first tight line wheel 5 and the top wall of tight line box 3, and second straightening piece is equipped between second tight line wheel 6 and the bottom wall of tight line box 3, and first straightening piece and second straightening piece are vertically set in the height direction.

[0028] In the embodiment, the top and bottom of the tight line box 3 are provided with a waist type groove 7 for the cutting line 2 to pass out.

[0029] The cutting line 2 extends into the tight line box 3 through the waist type groove 7.

[0030] The first straightening member includes a moving rod 14 sliding on the side of the tensioner 3, a first straightening wheel 15 rotating outside the moving rod 14, the moving rod 14 is symmetrically arranged relative to the tensioner 3, a screw rod 16 is threadedly connected to the end of the moving rod 14 away from the first straightening wheel 15, a fixed box 17 is arranged outside the screw rod 16, the screw rod 16 rotates inside the fixed box 17, one end of the screw rod 16 extends out of the fixed box 17, and a servo motor 18 is connected to the extending end.

[0031] The two first straightening wheels 15 are arranged above the first tensioning wheel 5, and the two servo motors 18 are independently controlled to independently adjust the height of the two first straightening wheels 15. When the servo motor 18 is turned on, the servo motor 18 drives the screw rod 16 to rotate, the moving rod 14 threadedly connected to the screw rod 16 moves up and down, the first straightening wheel 15 moves up and down, the cutting wire 2 is clamped between the two first straightening wheels 15, and the cutting wire 2 is straightened through clamping, so that the cutting wire 2 entering the lower tensioning structure is kept vertical, the tensioning is facilitated, and the distance between the two first straightening wheels 15 and the first tensioning wheel 5 can also be adjusted to stagger the arrangement of the two first straightening wheels 15, thereby improving the straightening effect, and in the staggered arrangement, the straightening stroke can be lengthened, and the normal tensioning is further ensured.

[0032] Specifically, a first support 8 sliding between the inner walls of the tensioner 3 is arranged on the side of the first tensioning wheel 5, the first tensioning wheel 5 rotates inside the first support 8, a sliding rod 9 is fixed on the side of the first support 8, the sliding rod 9 extends out of the surface of the tensioner 3 at the end away from the first support 8, a fixed plate 10 is fixed to the extending end of the sliding rod 9, a spring 11 is arranged outside the sliding rod 9, one end of the spring 11 is fixed to the first support 8, and the other end is fixed to the inner wall of the tensioner 3.

[0033] The support on the first tensioning wheel 5 is kept in contact with the cutting wire 2 by the contact of the spring 11, and the contact pressure is maintained, a second tensioning wheel 6 is arranged below, the second tensioning wheel 6 is provided with a second support 12, the second support 12 is rotatably connected with the second tensioning wheel 6, and a pneumatic cylinder 13 is fixed to the end of the second support 12 away from the tensioner 3.

[0034] Further, when the tension is adjusted, the second support 12 is driven by the pneumatic cylinder 13 to be pushed out, so that the second tensioning wheel 6 is in contact with the cutting wire 2, and the depth of the second tensioning wheel 6 is controlled by the pneumatic cylinder 13, so that when the cutting wire 2 is loose, the second tensioning wheel 6 can be adjusted to extend into the cutting wire 2 to make it tight, and the tight force is in contact with the side of the first tensioning wheel 5 above, so that the spring 11 is compressed, the spring 11 has elastic potential energy for resetting, and the cutting wire 2 is further tensioned by the reaction force, and the tension of the cutting wire 2 can be quickly adjusted by the combination of the two tensioning wheels.

[0035] The second straightening member comprises rotating rods 19 rotatingly connected inside the line tightener 3, and the rotating rods 19 are symmetrically provided with two, and the rotating rods 19 are externally fixed with second straightening wheels 20.

[0036] The working principle of the utility model is: the cutting line 2 is tensioned through the upper and lower two line tightener wheels, the first line tightener wheel 5 and the second line tightener wheel 6 are located on the two sides of the cutting line 2, the second line tightener wheel 6 is driven through the cylinder 13, the extension depth is adjusted, the first straightening wheel 15 is arranged for straightening before tension adjustment, the line tightening operation below is convenient, the second straightening wheel 20 is arranged for straightening after tension adjustment, the cutting line 2 keeps the vertical state after extending out of the line tightener 3, the two second straightening wheels 20 are in the same height clamping state, and the subsequent cutting is ensured to work normally.

[0037] It should be noted that, in this document, the terms "first" and "second" are used merely to distinguish one entity or action from another entity or action, and do not necessarily require or imply these entities or actions have any such actual relationship or order. Also, the terms "comprises", "comprising", or any other variations thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus including a series of elements includes not only those elements, but also other elements not explicitly listed, or inherent to such a process, method, article, or apparatus.

[0038] Finally, it should be noted that: the above only the preferred embodiments of the utility model have described, does not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part technical features. Any modification, equivalent replacement, improvement etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A wire cutting machine automatic wire tightening mechanism, comprising a wire cutting machine body (1) and a cutting wire (2) installed on the wire cutting machine body (1), characterized in that, The cutting line (2) is externally provided with a tension box (3), the top of the tension box (3) is welded with an L-shaped connecting plate (4), the tension box (3) is fixed on the line cutting machine body (1) through the connecting plate (4), the inside of the tension box (3) is provided with a first tension wheel (5) and a second tension wheel (6), the first tension wheel (5) and the second tension wheel (6) are arranged in an up-down manner and are located on both sides of the cutting line (2), a first straightening member is arranged between the first tension wheel (5) and the top wall of the tension box (3), a second straightening member is arranged between the second tension wheel (6) and the bottom wall of the tension box (3), and the first straightening member and the second straightening member are arranged in a vertical manner in the height direction.

2. An automatic wire tightening mechanism for a wire cutting machine tool according to claim 1, characterized in that: The top and bottom of the tension box (3) are provided with a waist-shaped slot (7) for the cutting line (2) to pass out.

3. The automatic wire tightening mechanism of claim 1, wherein: The side surface of the first tension wheel (5) is provided with a first support (8) sliding between the inner walls of the tension box (3), the first tension wheel (5) rotates in the first support (8), the side surface of the first support (8) is fixed with a sliding rod (9), the end of the sliding rod (9) away from the first support (8) extends out of the surface of the tension box (3), the extending end of the sliding rod (9) is fixed with a fixed plate (10), a spring (11) is arranged outside the sliding rod (9), one end of the spring (11) is fixed on the first support (8), and the other end is fixed on the inner wall of the tension box (3).

4. The automatic wire tightening mechanism of claim 1, wherein: The outside of the second tension wheel (6) is provided with a second support (12), the second support (12) is rotatably connected with the second tension wheel (6), and the end of the second support (12) away from the tension box (3) is fixed with an air cylinder (13).

5. The automatic wire tightening mechanism for a linear cutting machine according to claim 1, wherein: The first straightening member comprises a moving rod (14) sliding on the side surface of the tension box (3), a first straightening wheel (15) is rotatably arranged outside the moving rod (14), the moving rod (14) is symmetrically arranged about the tension box (3), a lead screw (16) is threadedly connected to the end of the moving rod (14) away from the first straightening wheel (15), a fixed box (17) is arranged outside the lead screw (16), the lead screw (16) rotates in the fixed box (17), one end of the lead screw (16) extends out of the fixed box (17), and a servo motor (18) is connected to the extending end.

6. An automatic wire tensioning mechanism for a wire saw machine according to claim 1, characterized in that: The second straightening member comprises a rotating rod (19) rotatably connected in the inside of the tension box (3), and two rotating rods (19) are symmetrically arranged, and a second straightening wheel (20) is fixedly arranged outside the rotating rod (19).

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