A slow wire cutting machine tool wire clamping and guiding device

Abstract

This utility model relates to the field of machining equipment technology, specifically disclosing a wire guiding device for a slow wire EDM machine, including a fixed plate, a wire guide seat, guide wheels, and an adjustment mechanism. A support plate is provided on the fixed plate, and the wire guide seat is detachably mounted on the support plate via a mounting bracket. It consists of a buffer section and a trumpet-shaped guide section for guiding the electrode wire. Two sets of guide wheels are sequentially distributed on one side of the output end of the wire guide seat. The adjustment mechanism is located in the mounting groove of the fixed plate, and its top tension wheel can be driven horizontally by a threaded rod, with a spring buffering the tension. This utility model, through the wire guide seat, facilitates the trajectory guidance of the electrode wire released from the wire winding cylinder, ensuring it remains stably connected to the corresponding guide wheel and preventing derailment. The adjustment mechanism facilitates the adjustment of the electrode wire tension during the feeding process, preventing loosening and derailment, further improving the electrode wire guiding efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mechanical processing equipment technology, specifically to a wire guide device for a slow wire EDM machine. Background Technology

[0002] Slow wire EDM machines use a continuously moving fine metal wire (electrode wire) as the electrode to cut the workpiece by removing metal through pulsed spark discharge. The machining accuracy and quality are highly dependent on the stable operation of the electrode wire. The wire guide device is a key component that ensures the electrode wire maintains the correct position and tension, directly affecting cutting accuracy, surface quality, and processing efficiency.

[0003] While existing wire guiding devices can achieve basic electrode wire guiding and position adjustment functions, they still have significant drawbacks in practical applications: When the electrode wire is unloaded from the winding drum, it needs to be continuously output from different positions along the horizontal direction of the drum, causing the distance between the unloading end and the guide wheel to constantly change, easily leading to tension fluctuations. Simultaneously, as the thickness of the electrode wire on the winding drum gradually decreases, the height of the unloading end relative to the guide wheel changes, further increasing the risk of derailment. Furthermore, some devices lack a buffer mechanism in their tension adjustment structure; excessive tension may cause the electrode wire to break, while loosening may cause vibration or displacement, severely affecting processing stability. Utility Model Content

[0004] The purpose of this invention is to provide a wire guide device for a slow wire cutting machine that can adapt to dynamic changes in the electrode wire feeding position, stabilize the guiding trajectory, and flexibly adjust the tension.

[0005] This utility model is achieved through the following technical solution: a wire guide device for a slow wire EDM machine tool, comprising: A fixed plate with a support plate fixed at one end. The support plate is used to install the electrode wire winding cylinder. The fixed plate has an installation groove on the side away from the support plate. The lead wire holder is detachably mounted on the support plate via a mounting bracket, and is located on the output end side of the electrode wire winding cylinder to guide the electrode wire. The guide wheel is provided in two sets. The two sets of guide wheels are rotatably mounted on the fixed plate and located between the mounting groove and the wire seat. The two sets of guide wheels are distributed in sequence along the electrode wire conveying direction. The set of guide wheels closer to the wire seat corresponds to the output end of the wire seat. And an adjustment mechanism, which is set in the mounting groove of the fixed plate. A tension wheel is installed at the top of the adjustment mechanism. The tension wheel is installed at the same height as the two sets of guide wheels. The tension wheel is adjusted horizontally by the adjustment mechanism in the direction of approaching or moving away from the two sets of guide wheels.

[0006] The working principle of this technical solution is as follows: the fixed plate serves as the basic load-bearing structure, the support plate provides the mounting position for the electrode wire winding cylinder, the wire seat achieves initial guidance of the electrode wire through the mounting frame, the two sets of guide wheels form a continuous transmission trajectory, and the adjustment mechanism drives the tensioning horizontal movement to adjust the electrode wire tension. The tensioning wheel and the guide wheel are at the same height to ensure smooth electrode wire transmission.

[0007] To better realize this utility model, the wire seat is further composed of a buffer part and guide parts symmetrically fixed at both ends of the buffer part; the buffer part is shaped like a round tube, and its internal channel is used for the electrode wire to pass through; the guide part is shaped like a trumpet, and the large end of the guide part is away from the buffer part, while the small end is connected to the internal channel of the buffer part, for guiding the electrode wire into the buffer part.

[0008] To better realize this utility model, the mounting bracket is further fixed on the support plate, and a relief groove corresponding to the wire seat is opened in the middle of the mounting bracket. Two sets of slots are symmetrically opened on the two side walls of the relief groove. The mounting bracket is provided with a quick-release assembly. A bracket is fixed to the outside of the buffer part of the wire seat. The two ends of the bracket are slidably inserted into the two sets of slots respectively, and the bracket is limited and fixed to the mounting bracket by the quick-release assembly.

[0009] To better realize this utility model, the mounting bracket is further provided with a first insertion hole, which is connected to the side wall of one of the slots; a quick-release assembly is provided on the outside of the mounting bracket and corresponds to the first insertion hole. The quick-release assembly consists of a fixing rod vertically fixed on the outer wall of the mounting bracket, an L-shaped plate slidably connected along the axial direction of the fixing rod, and a spring sleeved on the outside of the fixing rod; one end of the spring abuts against the outer wall of the mounting bracket, and the other end abuts against the L-shaped plate; the bracket is provided with a second insertion hole corresponding to the first insertion hole, and the insertion end of the L-shaped plate passes through the first insertion hole and is inserted into the second insertion hole to realize the limiting of the bracket and the mounting bracket.

[0010] To better realize this utility model, the adjustment mechanism further includes: The threaded rod is horizontally rotatably connected in the mounting groove of the fixed plate, and one end of the threaded rod extends to the outside of the fixed plate for easy adjustment. And a slide block, which slides in a horizontal direction with the mounting groove. The slide block is threaded on the outside of the threaded rod, and the tension wheel is rotated and installed on the top of the slide block.

[0011] To better realize this utility model, the top of the slide block is further provided with a slide cavity extending in the direction close to or away from the guide wheel, and a slider is slidably connected in the slide cavity. The cross-section of the slider is T-shaped. The tension wheel is rotatably mounted on the top of the slider. A second spring is fixed inside the slide cavity at one end away from the guide wheel, and the other end of the second spring is fixedly connected to the side of the slider away from the guide wheel.

[0012] Compared with the prior art, this utility model has the following advantages and beneficial effects: (1) The horn-shaped guide part of the wire seat in this utility model can adapt to the offset of the electrode wire released from different horizontal positions of the winding cylinder. By guiding with the large end and transitioning with the small end, the electrode wire is ensured to enter the circular tube buffer part smoothly. The buffer part further constrains the trajectory of the electrode wire, so that it always accurately docks with the corresponding guide wheel, effectively solving the derailment problem caused by the change of the feeding position. (2) This utility model drives the tensioning wheel to move horizontally by driving the slide block with the threaded rod, which can quickly adjust the initial tension of the electrode wire; at the same time, the T-shaped slider in the slide block cooperates with the spring to automatically compensate for the slight fluctuations in the tension of the electrode wire due to the feeding process by the elastic deformation of the spring. When the tension is too high, the spring is compressed and buffered to avoid the electrode wire from breaking; when the tension is too low, the spring is reset and pushes the slider to maintain the tension of the electrode wire and achieve dynamic balance of tension.

[0013] (3) This utility model achieves quick fixation by sliding the bracket and the mounting bracket into the slot and using the quick-release component. Pulling the L-shaped plate can release the limit. After inserting the new wire socket, the L-shaped plate is released and the spring automatically drives it to reset and lock. The replacement of the wire socket can be completed without tools, which greatly shortens the maintenance time and reduces the difficulty of operation. (4) The structure of this utility model is reasonable and the functions are complete. The guide wheel and the tension wheel are at the same height to ensure that the electrode wire transmission trajectory is smooth. The adjustment mechanism is integrated into the mounting groove of the fixed plate. The overall structure is compact and can be adapted to different models of slow wire cutting machines, with a wide range of applications. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the connection method between the wire seat and the mounting bracket of this utility model; Figure 3 This is a cross-sectional view of the wire seat of this utility model; Figure 4 This is a magnified schematic diagram of a portion of the structure at point A in this utility model.

[0015] Wherein: 1—fixed plate, 101—support plate, 2—mounting bracket, 201—gap groove, 202—slot, 203—insertion hole one, 204—fixed rod, 205—L-shaped plate, 206—spring one, 3—bracket, 301—insertion hole two, 4—buffer part, 401—guide part, 5—guide wheel, 6—tension wheel, 7—threaded rod, 701—slide seat, 702—slide cavity, 703—spring two, 704—slider. Detailed Implementation

[0016] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0017] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly including one or more of the feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] Example 1: The main structure of this embodiment is as follows: Figure 1 As shown, it includes: A fixing plate 1 has a support plate 101 fixed at one end. The support plate 101 is used to install the electrode wire winding cylinder. The fixing plate 1 has an installation groove on the side away from the support plate 101. The lead wire holder is detachably mounted on the support plate 101 via the mounting bracket 2, and the lead wire holder is located on the output end side of the electrode wire winding cylinder to guide the electrode wire. The guide wheel 5 is provided in two sets. The two sets of guide wheels 5 are rotatably mounted on the fixed plate 1 and located between the mounting groove and the wire seat. The two sets of guide wheels 5 are distributed in sequence along the electrode wire conveying direction. The set of guide wheels 5 closest to the wire seat corresponds to the output end of the wire seat. And an adjustment mechanism, which is set in the mounting groove of the fixed plate 1. A tension wheel 6 is installed at the top of the adjustment mechanism. The tension wheel 6 is at the same height as the two sets of guide wheels 5. The tension wheel 6 is horizontally adjusted by the adjustment mechanism in the direction of approaching or moving away from the two sets of guide wheels 5.

[0020] The specific implementation process is as follows: the electrode wire winding cylinder is fixed on the support plate 101, and the wire seat is installed on the support plate 101 through the mounting bracket 2 and located on one side of the output end of the winding cylinder; two sets of guide wheels 5 are rotatably installed on the fixed plate 1, and the guide wheel 5 near the wire seat is aligned with the output end of the wire seat; the adjustment mechanism is assembled in the mounting groove of the fixed plate 1, and the tension wheel 6 is installed on the top of the adjustment mechanism; the electrode wire is pulled out from the winding cylinder, passes through the wire seat in sequence, goes around the first set of guide wheels 5, the tension wheel 6 and the second set of guide wheels 5 to form a complete transmission path; by driving the adjustment mechanism, the tension wheel 6 is moved away from the guide wheel 5 in the horizontal direction until the electrode wire reaches the preset tension, and the initial adjustment is completed.

[0021] Example 2: This embodiment further defines the structure of the guide seat based on the above embodiments, such as... Figure 3 As shown, the wire seat consists of a buffer section 4 and guide sections 401 symmetrically fixed at both ends of the buffer section 4. The buffer section 4 is cylindrical, with an internal channel for the electrode wire to pass through. The guide section 401 is trumpet-shaped, with its larger end facing away from the buffer section 4 and its smaller end connected to the internal channel of the buffer section 4, used to guide the electrode wire into the buffer section 4. The guide section 401 utilizes the gradually changing angle of the trumpet opening to adapt to the offset of the electrode wire released from different horizontal positions on the winding drum, achieving a wide range of guidance. The buffer section 4 constrains the trajectory of the electrode wire through the cylindrical channel, ensuring its precise docking with the subsequent guide wheel 5 and preventing derailment.

[0022] The specific implementation process is as follows: the small ends of the two trumpet-shaped guide portions 401 are symmetrically fixed to both ends of the cylindrical buffer portion 4, ensuring that the guide portions 401 and the internal channels of the buffer portion 4 are connected. The wire seat is connected to the mounting bracket 2 through the bracket 3, so that the large end of the guide portion 401 faces the output end of the electrode wire winding cylinder; after the electrode wire is released from the winding cylinder, it first enters through the large end of the guide portion 401, enters the buffer portion 4 along the converging trajectory of the trumpet opening, and then exits from the other end of the guide portion 401, finally precisely docking with the first set of guide wheels 5. The other parts of this embodiment are the same as those in the above embodiment, and will not be described again.

[0023] Example 3: This embodiment further defines the structure of the mounting bracket 2 based on the above embodiments, such as... Figure 2 As shown, the mounting bracket 2 is fixed on the support plate 101. A clearance groove 201 corresponding to the wire seat is provided in the middle of the mounting bracket 2. Two sets of slots 202 are symmetrically provided on the two side walls of the clearance groove 201. A quick-release assembly is provided on the mounting bracket 2. A bracket 3 is fixed to the outside of the buffer part 4 of the wire seat. Both ends of the bracket 3 are slidably inserted into the two sets of slots 202, and the bracket 3 is fixed to the mounting bracket 2 by the quick-release assembly. The clearance groove 201 provides installation space for the wire seat, the slots 202 and the bracket 3 slide together for positioning, and the quick-release assembly uses elastic force to fix the bracket 3, balancing connection stability and ease of maintenance.

[0024] The specific implementation process is as follows: The mounting bracket 2 is fixed to the support plate 101, ensuring that the clearance groove 201 corresponds to the output end of the electrode wire winding cylinder. A bracket 3 is fixed outside the buffer portion 4 of the wire seat. The two ends of the bracket 3 are aligned with the two sets of slots 202 of the mounting bracket 2, and it is slidably inserted into the slots 202 to a preset position. The bracket 3 is then fixed in place by a quick-release assembly, such as an L-shaped plate, in conjunction with a spring. When the wire seat needs to be replaced, the quick-release assembly is released, and the bracket 3 is pulled out along the slots 202 to complete the wire seat removal. Other parts of this embodiment are the same as those in the above embodiment and will not be repeated.

[0025] Example 4: This embodiment further defines the structure of the mounting bracket 2 based on the above embodiments, such as... Figure 2As shown, the mounting bracket 2 has a first insertion hole 203, which is connected to the side wall of one of the slots 202. A quick-release assembly is located on the outside of the mounting bracket 2 and corresponds to the first insertion hole 203. The quick-release assembly consists of a fixing rod 204 vertically fixed on the outer wall of the mounting bracket 2, an L-shaped plate 205 slidably connected along the axial direction of the fixing rod 204, and a spring 206 sleeved on the outside of the fixing rod 204. One end of the spring 206 abuts against the outer wall of the mounting bracket 2, and the other end abuts against the L-shaped plate 205. The bracket 3 has a second insertion hole 301 corresponding to the first insertion hole 203. The insertion end of the L-shaped plate 205 passes through the first insertion hole 203 and is inserted into the second insertion hole 301 to limit the position of the bracket 3 and the mounting bracket 2. The fixing rod 204 provides a sliding guide for the L-shaped plate 205. The preload of the spring 206 pushes the L-shaped plate 205 through the insertion hole 203 and into the insertion hole 301 of the bracket 3 to achieve quick positioning. When the external force pulls the L-shaped plate 205, it can compress the spring 206 to release the positioning, and disassembly and assembly can be completed without tools.

[0026] The specific implementation process is as follows: The fixing rod 204 is vertically fixed to the outer wall of the mounting bracket 2. The L-shaped plate 205 is slidably sleeved on the fixing rod 204. Spring 206 is sleeved on the fixing rod 204, with its two ends abutting against the mounting bracket 2 and the L-shaped plate 205 respectively. After inserting the bracket 3 into the slot 202, the L-shaped plate 205 is released. Spring 206 returns to its original position, pushing the insertion end of the L-shaped plate 205 through the insertion hole 203 and into the insertion hole 301 of the bracket 3, thus completing the limiting of the bracket 3. Pulling the L-shaped plate 205 compresses the spring 206, causing the insertion end to disengage from the insertion hole 301, allowing the bracket 3 to be pulled out of the slot 202. The other parts of this embodiment are the same as those in the above embodiment and will not be described again.

[0027] Example 5: This embodiment further defines the structure of the adjustment mechanism based on the above embodiments, such as... Figure 4 As shown, the adjustment mechanism includes: The threaded rod 7 is horizontally rotatably connected in the mounting groove of the fixed plate 1, and one end of the threaded rod 7 extends to the outside of the fixed plate 1 for easy adjustment. The slide block 701 slides horizontally with the mounting groove. The slide block 701 is threaded onto the outside of the threaded rod 7, and the tension wheel 6 is rotatably mounted on the top of the slide block 701. When the threaded rod 7 rotates, the slide block 701 slides horizontally along the mounting groove due to the threaded engagement, causing the tension wheel 6 at the top to move closer to or away from the guide wheel 5, thereby adjusting the tension of the electrode wire. The end of the threaded rod 7 extending to the outside of the fixing plate 1 facilitates manual adjustment.

[0028] The specific implementation process is as follows: the threaded rod 7 is horizontally rotated and installed in the mounting groove of the fixed plate 1, ensuring that one end extends to the outside of the fixed plate 1; the slide 701 is threaded onto the threaded rod 7 and slides in cooperation with the mounting groove; the tensioning wheel 6 is rotatably installed on the top of the slide 701. Rotating the extended end of the threaded rod 7 clockwise causes the slide 701 to drive the tensioning wheel 6 away from the guide wheel 5 along the mounting groove, increasing the electrode wire tension; rotating it counterclockwise causes the tensioning wheel 6 to move closer to the guide wheel 5, decreasing the tension, until the required tension is reached. Other parts of this embodiment are the same as those in the above embodiment and will not be repeated.

[0029] Example 6: This embodiment further defines the structure of the adjustment mechanism based on the above embodiments, such as... Figure 4 As shown, the top of the slide block 701 has a sliding cavity 702 extending along the direction close to or away from the guide wheel 5. A slider 704 is slidably connected in the sliding cavity 702, and the cross-section of the slider 704 is T-shaped. The tension wheel 6 is rotatably mounted on the top of the slider 704. A second spring 703 is fixed inside the sliding cavity 702 at one end away from the guide wheel 5, and the other end of the second spring 703 is fixedly connected to the side of the slider 704 away from the guide wheel 5. The slider 704 slides along the sliding cavity 702. The elastic deformation of the second spring 703 can compensate for the slight tension fluctuations of the electrode wire—when the tension is too high, the second spring 703 is compressed to prevent the electrode wire from breaking; when the tension is too low, the second spring 703 returns to its original position to maintain the electrode wire tautness. The T-shaped slider 704 can prevent it from detaching from the sliding cavity 702.

[0030] The specific implementation process is as follows: a sliding cavity 702 extending along the direction of approaching / moving away from the guide wheel 5 is formed at the top of the slide block 701; a T-shaped slider 704 is slidably embedded in the sliding cavity 702; one end of the second spring 703 is fixed to the end of the sliding cavity 702 away from the guide wheel 5, and the other end is connected to the slider 704; a tensioning wheel 6 is rotatably mounted on the top of the slider 704. When the electrode wire tension increases instantaneously, the tensioning wheel 6 pushes the slider 704 to compress the second spring 703, causing it to slide along the sliding cavity 702 away from the guide wheel 5, thus buffering the tension; when the tension decreases, the second spring 703 returns to its original position, pushing the slider 704 closer to the guide wheel 5, maintaining stable electrode wire tension. Other parts of this embodiment are the same as those in the above embodiment and will not be described again.

[0031] It is understood that the working principle and process of the wire guide device structure of the slow wire EDM cutting machine tool according to one embodiment of the present utility model, such as the spring and tension wheel 6, are existing technologies and are well known to those skilled in the art, and will not be described in detail here.

[0032] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A wire straightening device for a slow wire cutting machine tool, characterized in that include: A fixing plate (1) has a support plate (101) fixed at one end. The support plate (101) is used to install the electrode wire winding cylinder. The fixing plate (1) has an installation groove on the side away from the support plate (101). The lead wire holder is detachably mounted on the support plate (101) via the mounting bracket (2), and the lead wire holder is located on the output end side of the electrode wire winding cylinder to guide the electrode wire; The guide wheel (5) is provided in two sets. The two sets of guide wheels (5) are rotatably mounted on the fixed plate (1) and located between the mounting groove and the wire seat. The two sets of guide wheels (5) are distributed in sequence along the electrode wire conveying direction. The set of guide wheels (5) closer to the wire seat corresponds to the output end of the wire seat. And an adjustment mechanism, which is set in the mounting groove of the fixed plate (1). A tension wheel (6) is installed at the top of the adjustment mechanism. The tension wheel (6) is installed at the same height as the two sets of guide wheels (5). The tension wheel (6) is adjusted horizontally by the adjustment mechanism in the direction of approaching or moving away from the two sets of guide wheels (5).

2. The wire guiding device of a low-speed wire cutting machine tool according to claim 1, wherein The lead wire holder is composed of a buffer part (4) and guide parts (401) symmetrically fixed at both ends of the buffer part (4); the buffer part (4) is cylindrical, and its internal channel is used for the electrode wire to pass through; the guide part (401) is trumpet-shaped, and the large end of the guide part (401) is away from the buffer part (4), and the small end is connected to the internal channel of the buffer part (4) to guide the electrode wire into the buffer part (4).

3. A wire guiding device for a slow wire cutting machine tool according to claim 1 or 2, characterized in that The mounting bracket (2) is fixed on the support plate (101). The mounting bracket (2) has a relief groove (201) in the middle that corresponds to the wire seat. Two sets of slots (202) are symmetrically opened on the two side walls of the relief groove (201). The mounting bracket (2) is provided with a quick-release assembly. The buffer part (4) of the wire seat is fixed with a bracket (3). The two ends of the bracket (3) are slidably inserted into the two sets of slots (202) respectively. The bracket (3) is limited and fixed to the mounting bracket (2) by the quick-release assembly.

4. The wire guiding device of a slow wire cutting machine tool according to claim 3, characterized in that, The mounting bracket (2) has a first insertion hole (203) which is connected to the side wall of one of the slots (202). The quick-release assembly is located on the outside of the mounting bracket (2) and corresponds to the first insertion hole (203). The quick-release assembly consists of a fixed rod (204) vertically fixed on the outer wall of the mounting bracket (2), an L-shaped plate (205) slidably connected along the axial direction of the fixed rod (204), and a spring (206) sleeved on the outside of the fixed rod (204). One end of the spring (206) abuts against the outer wall of the mounting bracket (2), and the other end abuts against the L-shaped plate (205). The bracket (3) has a second insertion hole (301) corresponding to the first insertion hole (203). The insertion end of the L-shaped plate (205) passes through the first insertion hole (203) and is inserted into the second insertion hole (301) to realize the limiting of the bracket (3) and the mounting bracket (2).

5. The wire guiding device of a slow wire cutting machine tool according to claim 1 or 2, characterized in that, The adjustment mechanism includes: The threaded rod (7) is horizontally rotatably connected in the mounting groove of the fixed plate (1), and one end of the threaded rod (7) extends to the outside of the fixed plate (1) for easy adjustment; And a slide (701) that slides in a horizontal direction with the mounting groove. The slide (701) is threaded on the outside of the threaded rod (7), and the tension wheel (6) is rotatably mounted on the top of the slide (701).

6. The wire guiding device of a slow wire cutting machine tool according to claim 5, wherein The top of the slide block (701) is provided with a slide cavity (702) extending in the direction close to or away from the guide wheel (5). A slider (704) is slidably connected in the slide cavity (702). The cross-section of the slider (704) is T-shaped. The tension wheel (6) is rotatably installed on the top of the slider (704). A second spring (703) is fixed inside the slide cavity (702) at one end away from the guide wheel (5). The other end of the second spring (703) is fixedly connected to the side of the slider (704) away from the guide wheel (5).

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