Full-automatic wire feeding structure for medium-speed wire cutting

Abstract

The utility model relates to the technical field of wire cutting and wire feeding, in particular to a medium-speed wire cutting full-automatic wire feeding structure which is characterized in that a base plate serves as a carrier of the whole wire feeding structure, a motor assembly for driving an electrode wire to move is installed above the base plate, a material receiving pipe is arranged on the output side of the motor assembly, and a sleeve is arranged on the outer side of the material receiving pipe in a sliding and sleeving mode; a driving assembly is further installed on the base plate, the driving assembly is fixed to the sleeve through a sliding frame, the driving assembly drives the sleeve to move in the axial direction through the sliding frame, and the sleeve is not disengaged from the material receiving pipe. A motor assembly is arranged on a line where electrode wires are arranged, a driving wheel of the motor assembly and an external auxiliary wheel are matched with each other to conduct transmission on the electrode wires, the electrode wires move along a material receiving pipe under the action of the material receiving pipe, and under the matched action of a clamping rack, a guide rail and a sleeve of the driving assembly, the electrode wires are driven to move. And the electrode wires are directly transferred to the next group of component positions of the wire cutting machine, so that the full-automatic wire feeding of the electrode wires is realized, and the efficiency is higher.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wire cutting and wire feeding, and in particular to a full-automatic wire feeding structure for medium-speed wire cutting. BACKGROUND

[0002] Wire cutting processing is a special processing method that uses a metal wire (electrode wire) as a tool electrode to perform electrical discharge machining on a workpiece. It generates high temperature through pulse discharge between the electrode wire and the workpiece, melts or vaporizes the workpiece material, and thus realizes cutting processing of the workpiece. The medium-speed wire cutting machine tool is developed on the basis of the fast-speed wire cutting machine tool. It not only retains the characteristics of high processing efficiency of the fast-speed wire cutting machine tool, but also significantly improves the processing precision and surface quality through multiple cutting and frequency control and other technical means, so that the processing effect approaches that of the slow-speed wire cutting machine tool, and the cost is relatively low. Therefore, it occupies an important position in the domestic market.

[0003] The existing medium-speed wire feeding methods include the following: 1. Manual wire feeding. The operator needs to manually pull the electrode wire out of the wire barrel according to the processing requirements, and pass through a series of guide rollers, conductive blocks and other components, and finally fix it at the starting position of the workpiece processing. This method has many disadvantages. First, the manual wire feeding process is complicated and time-consuming, which seriously affects the processing efficiency, especially when the electrode wire needs to be frequently replaced or multiple workpieces need to be continuously processed, the problem of low efficiency is more prominent. Second, it is difficult to ensure the uniformity and stability of the electrode wire tension. Different operating methods and experiences of different operators will cause differences in the tension of the electrode wire each time the wire is fed, and uneven tension will directly affect the processing precision and surface quality, which may increase the size deviation of the cut workpiece and deteriorate the surface roughness, and even cause wire breakage during processing, affecting the continuity and stability of the processing. 2. Semi-automatic wire feeding. In order to improve the shortcomings of manual wire feeding, some medium-speed wire cutting machine tools are equipped with semi-automatic wire feeding devices. This device usually adds some auxiliary mechanisms such as simple wire barrel driving devices or tension adjusting mechanisms on the basis of manual wire feeding, which can reduce the labor intensity of the operator to a certain extent and improve the convenience of wire feeding speed and tension control. However, the semi-automatic wire feeding method still cannot realize completely automatic operation. During the wire feeding process, the operator still needs to intervene a lot, for example, when replacing the electrode wire, the operator needs to manually disassemble the old wire and install the new wire, and then adjust it through the semi-automatic device. In addition, the semi-automatic wire feeding device has limited automation, and for some complex processing tasks such as processing of workpieces made of different materials, switching of different processing parameters, etc., it cannot automatically adjust the wire feeding parameters according to the actual situation, and still relies on the experience and judgment of the operator, which is easy to cause processing errors due to human negligence, and cannot fully exert the performance advantages of the medium-speed wire cutting machine tool. Therefore, in order to solve the above problems, the present application provides a full-automatic wire feeding structure for medium-speed wire cutting. The utility model discloses a kind of full-automatic wire feeding structures of middle wire cutting, which can realize the full-automatic wire feeding of electrode wire, and the electrode wire can be automatically fed to the subsequent component.

[0004] To solve the problem of inconvenient operation of manual wire feeding and semi-automatic wire feeding, the present application provides a full-automatic wire feeding structure of middle wire cutting.

[0005] The full-automatic wire feeding structure of middle wire cutting provided by the present application includes a base plate serving as a carrier of the whole wire feeding structure, a guide wheel mounted on the base plate for guiding, a motor assembly mounted above the base plate for driving the movement of electrode wire, and a receiving pipe provided on the output side of the motor assembly.

[0006] The motor assembly is arranged to convey the electrode wire, and the outlet position of the conveying is guided by the receiving pipe. After the electrode wire enters the receiving pipe, the drive assembly drives the axial displacement of the sleeve pipe, realizing the transmission of the electrode wire to the subsequent component, thereby realizing the full-automatic threading of the electrode wire, reducing the degree of human involvement, and improving the threading efficiency.

[0007] Preferably, the drive assembly includes a guide rail assembly arranged on the base plate, a sliding block in the guide rail assembly is bolted and fixedly connected with a sliding frame, and a guide rail body in the guide rail assembly is bolted and fixedly connected with the base plate.

[0008] Preferably, the drive assembly further includes a ratchet arranged in parallel with the guide rail assembly, and a motor two is bolted and fixedly connected below the base plate, and the output end of the motor two is drivingly connected with the ratchet through a gear.

[0009] Preferably, the bottom of the sliding frame is bolted and fixedly connected with the sliding block and the ratchet on both sides, so that the ratchet and the sliding block operate synchronously.

[0010] Preferably, the motor assembly includes a bracket arranged above the base plate, a motor one is mounted on the bracket, the output end of the motor one is sleeved with a driving wheel, and the driving wheel is located on the inner side of the bracket.

[0011] Preferably, the bracket is bolted and fixedly connected with a fixed plate on both sides, the receiving pipe is fixed on the fixed plate on the output side of the motor assembly, and a feeding pipe is mounted on the fixed plate on the input side, the axes of the feeding pipe and the receiving pipe are tangent to one side of the driving wheel, and the axes of the end portions of the feeding pipe and the receiving pipe are arranged in line.

[0012] In summary, the present application has the following beneficial technical effects:

[0013] By setting the motor assembly on the line of the electrode wire layout, the driving wheel and the external auxiliary wheel of the motor assembly are matched to drive the electrode wire, the electrode wire moves along the receiving pipe under the action of the receiving pipe, and under the cooperation of the clamping rack, the guide rail and the sleeve of the driving assembly, it is directly transmitted to the next group of positions of the wire cutting machine, so as to realize the full-automatic wire feeding of the electrode wire, compared with the prior art, it has higher efficiency, and the operation convenience is also improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is the isometric view in the embodiment one of the application;

[0015] Figure 2 is the rear view isometric view in the embodiment one of the application;

[0016] Figure 3 is the partial exploded view in the embodiment one of the application;

[0017] Figure 4 is the device working schematic view in the embodiment one of the application.

[0018] Explanation of reference signs: 1, base plate; 2, support; 21, fixed plate; 3, motor one; 31, driving wheel; 4, guide wheel; 5, guide rail body; 6, sliding block; 7, sliding frame; 8, clamping rack; 9, sleeve; 10, receiving pipe; 11, motor two; 12, gear; 13, feeding pipe. DETAILED DESCRIPTION

[0019] The following will be combined with the Figure 1 - Figure 4 The application is further described in detail.

[0020] Embodiment one:

[0021] A kind of middle wire feeding structure of wire cutting, referring to Figure 1 - Figure 4 , base plate 1 is the carrier of the whole wire feeding structure, and guide wheel 4 for guiding is installed on base plate 1.

[0022] The driving assembly is fixed through the sliding frame 7 and the sleeve 9, the driving assembly drives the sleeve 9 to displace along the axial direction through the sliding frame 7, but the sleeve 9 does not disengage from the receiving pipe 10. The driving assembly comprises a guide rail assembly arranged on the base plate 1, the sliding block 6 and the sliding frame 7 in the guide rail assembly are fixedly connected through bolts, the guide rail body 5 in the guide rail assembly is fixedly connected with the base plate 1 through bolts, and the direction of the guide rail assembly is arranged along the subsequent direction of the motor wire. The driving assembly further comprises a clamping toothed bar 8 arranged in parallel with the guide rail assembly, the lower portion of the base plate 1 is fixedly connected with a second motor 11 through bolts, and the output end of the second motor 11 is connected with the clamping toothed bar 8 through a gear 12 in a meshing transmission mode. The bottom of the sliding frame 7 is fixedly connected with the sliding block 6 and the clamping toothed bar 8 on both sides through bolts, so that the clamping toothed bar 8 and the sliding block 6 operate synchronously, and the sliding frame 7 arranged between the clamping toothed bar 8 and the sliding block 6 is used to ensure that the clamping toothed bar 8 and the gear 12 are always in the meshing state, and the direction of the clamping toothed bar 8 is guided by the guide rail assembly, so that the stability of the device movement is ensured.

[0023] The second motor 11 rotates, the transmission gear 12 rotates, and then the clamping toothed bar 8 is driven to displace in a meshing transmission mode. Since the clamping toothed bar 8 and the sliding block 6 are connected through the sliding frame 7, the sliding block 6 also moves, and the sleeve 9 fixedly connected to the top of the sliding frame 7 also displaces along the axial direction on the receiving pipe 10, so that the driving and feeding operation of the electrode wire from the guide wheel 4 to the next wire cutting machine structure is completed.

[0024] The motor assembly for driving the movement of the electrode wire is arranged above the base plate 1, and the output side of the motor assembly is provided with the receiving pipe 10, and the sleeve 9 is sleeved outside the receiving pipe 10. The motor assembly comprises a support 2 arranged above the base plate 1, a first motor 3 is arranged on the support 2, a driving wheel 31 is sleeved on the output end of the first motor 3, and the driving wheel 31 is located on the inner side of the support 2. The support 2 is fixedly connected with fixed plates 21 on both sides through bolts, the receiving pipe 10 is fixed on the output side fixed plate 21 of the motor assembly, and the feeding pipe 13 is arranged on the input side fixed plate 21. The axes of the feeding pipe 13 and the receiving pipe 10 are tangent to one side of the driving wheel 31, the axes of the end portions of the feeding pipe 13 and the receiving pipe 10 are arranged in a same line, the electrode wire enters the feeding pipe 13 after passing through the guide wheel 4, reaches the position of the driving wheel 31 through the feeding pipe 13, the outer side of the driving wheel 31 is further provided with an auxiliary wheel (see Figure 4 ), the driving wheel 31 and the auxiliary wheel are pressed against each other, the position of the electrode wire is driven through friction, the electrode wire then enters the receiving pipe 10 and is transported along the channel in the receiving pipe 10 to the rear, after the electrode wire is discharged from the receiving pipe 10, the driving assembly operates, the sleeve 9 is driven to displace along the axial direction by the second motor 11, so that the length of the conveying channel is increased, and the electrode wire is finally moved to the position close to the next mechanism, so that the next mechanism position does not need manual operation, and the butt joint operation can be conveniently completed.

[0025] The above describes an exemplary embodiment of the full-automatic wire feeding structure of the wire-cut EDM machine provided by the present disclosure with reference to a preferred embodiment, however, those skilled in the art can understand that various modifications and changes can be made to the above specific embodiment, and various technical features and structures provided by the present disclosure can be combined without departing from the concept of the present disclosure, and the protection scope of the present disclosure is determined by the appended claims.

Claims

1. A full-automatic wire feeding structure for medium-speed wire cutting, a base plate (1) serving as a carrier of the whole wire feeding structure, a guide wheel (4) for guiding being mounted on the base plate (1), characterized in that, The motor assembly driving the electrode wire to move is installed above the base plate (1), and the motor assembly output side is provided with a receiving pipe (10), and the outside of the receiving pipe (10) is sleeved with a sleeve pipe (9), and the base plate (1) is further provided with a driving assembly, and the driving assembly is fixed through the sliding frame (7) and the sleeve pipe (9), and the driving assembly drives the sleeve pipe (9) to displace along the axial direction through the sliding frame (7), but the sleeve pipe (9) does not disengage from the receiving pipe (10).

2. The fully automatic wire feeding structure according to claim 1, characterized in that: The driving assembly comprises a guide rail assembly arranged on the base plate (1), the sliding block (6) and the sliding frame (7) in the guide rail assembly are bolted and fixedly connected, and the guide rail body (5) in the guide rail assembly is bolted and fixedly connected with the base plate (1).

3. The fully automatic wire feeding structure according to claim 2, characterized in that: The driving assembly further comprises a clamping rack (8) arranged in parallel with the guide rail assembly, and the lower portion of the base plate (1) is bolted and fixedly connected with a second motor (11), and the output end of the second motor (11) is in meshing transmission connection with the clamping rack (8) through a gear (12).

4. The fully automatic wire feeding structure according to claim 3, characterized in that: The bottom of the sliding frame (7) is bolted and fixedly connected with the sliding block (6) and the clamping rack (8) on both sides, so that the clamping rack (8) and the sliding block (6) operate synchronously.

5. The fully automatic wire-feeding structure according to claim 1, characterized in that: The motor assembly comprises a bracket (2) arranged above the base plate (1), and a first motor (3) is installed on the bracket (2), and the output end of the first motor (3) is sleeved with a driving wheel (31), and the driving wheel (31) is located on the inner side of the bracket (2).

6. The fully automatic wire feeding structure according to claim 5, characterized in that: The two sides of the bracket (2) are bolted and fixedly connected with fixed plates (21), the receiving pipe (10) is fixed on the output side fixed plate (21) of the motor assembly, and the feeding pipe (13) is installed on the input side fixed plate (21), the axes of the feeding pipe (13) and the receiving pipe (10) are tangent to one side of the driving wheel (31), and the axes of the feeding pipe (13) and the receiving pipe (10) are arranged in line at the end portions.

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