Wire head fixing device of wire electrode wire cylinder

Abstract

The utility model discloses a wire head fixing device of a wire electrode wire cylinder, which comprises a wire cylinder structural component, a lower jacking mechanism component, a servo driving component and a wire feeding pipe structural component, and realizes that a wire electrode wire head in a wire feeding pipe is automatically clamped and fixed when a wire electrode rotates to a specified angle and position in the wire cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of wire cutting equipment, in particular to a wire head fixing device for a wire-shaped electrode wire drum. Background Art

[0002] CNC wire cutting is a branch of EDM, which uses spark discharge from a wire electrode to cut the workpiece. The existing wire electrode and the rotating wire drum are fixed by screw clamping to fix the wire head. This fixing method has several shortcomings. First, the screw clamping method is difficult to perform program-controlled automated operations and cannot provide technical support for further automated wire threading. Second, the screw clamping method causes bending and deformation damage to the wire head. When threading the wire for the second time, the bent and deformed part must be cut off to smoothly thread the wire. Due to the above main shortcomings, it is necessary to make targeted improvements to solve the existing problems. Summary of the Invention

[0003] The main purpose of the utility model is to provide a wire head fixing device for a wire-shaped electrode wire drum, so as to solve the problems and shortcomings existing in the existing wire head fixing structure.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A wire head fixing device for a wire-shaped electrode wire drum, characterized by comprising a wire drum structural component, a lower push mechanism component, a servo drive component and a wire feeding tube structural component;

[0006] The wire drum structural assembly includes: a wire drum driving screw synchronous wheel, a wire drum rotating left support bearing, a wire drum rotating left support seat, a rotating wire drum with an internal shaft, a wire drum rotating right support seat, and a wire drum rotating right support bearing;

[0007] The lower ejection mechanism assembly includes: a lower ejection cylinder fixing bracket, a lower ejection cylinder, a lower ejection screw fixing plate, a lower ejection length adjustment screw, a lower ejection rod, a wire pressing elastic element, and an arc-shaped pressing sheet;

[0008] The servo drive assembly includes: a servo motor coupling, a servo motor connecting plate, and a servo motor;

[0009] The wire feeding tube structural assembly includes: a wire feeding tube and a fixing part thereof;

[0010] One end of the rotating wire drum is connected to the left supporting seat for rotating the wire drum, and the left supporting seat for rotating the wire drum is connected to the wire drum driving screw synchronous wheel through the left supporting bearing for rotating the wire drum provided inside. The one end of the rotating wire drum away from the left supporting seat for rotating the wire drum is connected to the right supporting seat for rotating the wire drum, and the right supporting seat for rotating the wire drum is connected to the servo motor coupling through the right supporting bearing for rotating the wire drum provided inside. A servo motor connecting plate is provided on the outside of the servo motor coupling, and a servo motor is provided on one side of the servo motor connecting plate. A lower cylinder is provided on the upper part of the rotating wire drum, and the wire drum rotating A lower top cylinder fixing bracket is provided on the upper part of the right support seat, and the lower top cylinder and the lower top cylinder fixing bracket are connected side by side on the left and right sides, and a lower top screw fixing plate is provided between the rotating wire drum and the lower top cylinder, and the lower top screw fixing plate is connected to a lower top length adjustment screw with one end passing through the rotating wire drum, and one end of the lower top length adjustment screw is connected to a lower top rod with one end passing through the shaft rod inside the rotating wire drum, and a wire pressing elastic element is provided on the periphery of the lower top rod, and an arc-shaped pressing sheet is provided on the end of the lower top rod passing through the rotating wire drum downward, and a wire feeding tube is provided between the arc-shaped pressing sheet and the rotating wire drum.

[0011] Preferably, the wire drum rotating left supporting seat is connected to the wire drum driving screw synchronous wheel through the wire drum rotating left supporting bearing and the second wire drum rotating left supporting bearing arranged side by side in the horizontal direction inside.

[0012] Preferably, the wire drum rotating right support seat is provided with a wire drum rotating right support bearing (13) and a second wire drum rotating right support bearing arranged side by side in a horizontal direction.

[0013] Compared with the existing technology, the present invention has the following beneficial effects:

[0014] It can cooperate with programmed control to realize the automatic fixation of the electrode wire head on the electrode wire barrel, avoiding high-intensity manual operation, and can effectively maintain the integrity of the wire head so that it can be fixed repeatedly, avoiding the trouble of trimming it once after fixing it. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the present invention in the prior art, the following is a brief introduction to the drawings required for implementing the prior art description. Obviously, the drawings described below are only some embodiments of the present invention, and other drawings can be obtained based on the structures shown in these drawings.

[0016] Figure 1 This is an exploded view of the structure of the present utility model;

[0017] Figure 2 This is an isometric structural diagram of the present utility model;

[0018] Figure 3 This is a structural cross-sectional view of the utility model;

[0019] Figure 4 This is a front perspective perspective diagram of the utility model installed on a machine tool;

[0020] Figure 5 This is a three-dimensional schematic diagram from the reverse side of the utility model when it is installed on a machine tool.

[0021] Reference numerals:

[0022] A. Wire drum structural assembly; 1. Wire drum driving screw synchronous wheel; 2. Wire drum rotation left supporting bearing; 3. Second wire drum rotation left supporting bearing; 4. Wire drum rotation left supporting seat; 5. Rotating wire drum; 51. Shaft; 12. Wire drum rotation right supporting seat; 13. Wire drum rotation right supporting bearing; 14. Second wire drum rotation right supporting bearing; B. Lower ejector mechanism assembly; 7. Lower ejector cylinder fixing bracket; 6. Lower ejector cylinder; 8. Lower ejector screw fixing plate; 9. Lower ejector length adjusting screw; 10. Lower ejector rod; 11. Wire pressing elastic element; 18. Arc pressing piece; C. Servo drive assembly; 15. Servo motor coupling; 16. Servo motor connecting plate; 17. Servo motor; D. Wire feed tube structural assembly; 19. Wire feed tube; 20. Electrode wire. DETAILED DESCRIPTION

[0023] The following diagrams illustrate various embodiments of the present invention. For clarity, many practical details will be included in the following description. However, it should be understood that these practical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not essential. Furthermore, to simplify the drawings, some commonly used structures and components are depicted in simplified schematic form.

[0024] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back... are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] Moreover, some of the above-mentioned terms may be used to express other meanings in addition to indicating orientation or positional relationships. For example, the term "on" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For ordinary technicians in this field, the specific meanings of these terms in this utility model can be understood according to the specific circumstances. Example

[0026] In order to facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0027] like Figures 1 to 5 As shown, the utility model provides a wire head fixing device for a wire electrode wire drum, comprising a wire drum structural component A, a lower lifting mechanism component B, a servo drive component C and a wire feeding tube structural component D;

[0028] The wire drum structure assembly (A) includes: a wire drum driving screw synchronous wheel 1, a wire drum rotating left support bearing 2, a second wire drum rotating left support bearing 3, a wire drum rotating left support seat 4, a rotating wire drum 5 with an internal shaft 51, a wire drum rotating right support seat 12, a wire drum rotating right support bearing 13, and a second wire drum rotating right support bearing 14;

[0029] The lower ejection mechanism assembly B includes: a lower ejection cylinder fixing bracket 7, a lower ejection cylinder 6, a lower ejection screw fixing plate 8, a lower ejection length adjustment screw 9, a lower ejection rod 10 with a stepped cap at one end, a wire pressing elastic element 11, and an arc-shaped pressing piece 18;

[0030] The servo drive assembly C includes: a servo motor coupling 15, a servo motor connecting plate 16, and a servo motor 17;

[0031] The wire feeding tube structural assembly D includes: a wire feeding tube 19 and its fixing parts;

[0032] The wire drum driving screw synchronous wheel 1 is connected to the synchronous wheel on the external wire drum slide driving screw through a synchronous belt, which is used to drive the wire drum slide to move left and right. The wire drum rotation left support seat 4 is equipped with a wire drum rotation left support bearing 2 and a second wire drum rotation left support bearing 3 arranged in sequence, and the wire drum rotation right support seat 12 is equipped with a wire drum rotation right support bearing 13 and a second wire drum rotation right support bearing 14 arranged in sequence. The wire drum rotation left support bearing 2 and the second wire drum rotation left support bearing 3 are installed on one end of the main shaft of the rotating wire drum 5, and the wire drum rotation right support bearing 13 and the second wire drum rotation right support bearing 14 are installed on the other end of the main shaft of the rotating wire drum 5.

[0033] A lower top cylinder fixing bracket 7 is provided on the right support seat 12 for rotating the wire drum, a lower top cylinder 6 is provided on one side of the lower top cylinder fixing bracket 7, a lower top screw fixing plate 8 is provided below the lower top cylinder 6, a lower top length adjustment screw 9 is provided inside the lower top screw fixing plate 8, the lower part of the lower top length adjustment screw 9 passes through a hole provided on the surface of the rotating wire drum 5, and contacts a lower top rod (10) provided inside the rotating wire drum 5, the lower top rod 10 passes downward through the shaft 51 and passes out of the surface of the rotating wire drum 5, an arc-shaped pressing piece 18 is provided at one end of the lower part of the lower top rod 10, a step cap is provided at one end of the upper part of the lower top rod 10, and a wire pressing elastic element 11 is provided between the step cap of the lower top rod 10 and the shaft 51.

[0034] A servo motor connecting plate 16 and a servo motor 17 are sequentially provided on the side of the right support seat 12 for rotating the yarn drum away from the rotating yarn drum 5 . The main shaft of the servo motor 17 is connected to the shaft 51 through a servo motor coupling 15 .

[0035] The wire feeding tube 19 guides the electrode wire 20 to the gap between the rotating wire drum 5 and the arc-shaped pressing sheet 18.

[0036] One end of the rotating wire drum 5 is connected to the left support seat 4 for rotating the wire drum, and the left support seat 4 for rotating the wire drum is connected to the wire drum driving screw synchronous wheel 1 through the left support bearing 2 for rotating the wire drum and the second left support bearing 3 for rotating the wire drum. The end of the rotating wire drum 5 away from the left support seat 4 for rotating the wire drum is connected to the right support seat 12 for rotating the wire drum, and the right support seat 12 for rotating the wire drum is connected to the servo motor coupling 15 through the right support bearing 13 for rotating the wire drum and the second right support bearing 14 for rotating the wire drum. The outside of the servo motor coupling 5 is provided with a servo motor connecting plate 16, and one side of the servo motor connecting plate 16 is provided with a servo motor 17. A lower top cylinder 6 is provided on the upper part of the rotating wire drum 5, and a push arm that can move downward is provided at the lower part of the lower top cylinder 6. The right support seat 12 for rotating the wire drum is connected to the right support seat 12 for rotating the wire drum. A lower top cylinder fixing bracket 7 is provided on the upper part of the support 12, and the lower top cylinder 6 and the lower top cylinder fixing bracket 7 are connected side by side on the left and right. A lower top screw fixing plate 8 is provided between the rotating wire drum 5 and the lower top cylinder 6, and the lower top screw fixing plate 8 is connected to a lower top length adjusting screw 9 with one end passing through the rotating wire drum 5. The lower top length adjusting screw 9 is connected to a lower top rod 10 with one end passing through the shaft rod 51 at one end inside the rotating wire drum 5. A wire pressing elastic element 11 is provided on the periphery of the lower top rod 10, and a head of the upper end of the wire pressing elastic element 11 is provided on the upper part of the lower top rod 10 to limit the upper end of the wire pressing elastic element 11, and the lower end of the wire pressing elastic element 11 is against the shaft rod 51. An arc-shaped pressing piece 18 is provided at the end of the lower top rod 10 that passes downward through the rotating wire drum 5, and a wire feeding tube 19 is provided between the arc-shaped pressing piece 18 and the rotating wire drum 5.

[0037] When the present invention is working, the lower push mechanism assembly B can push open the arc-shaped pressing plate 18, and after the electrode wire head in the wire feeding tube 19 is fed into the area between the rotating wire drum 5 and the arc-shaped pressing plate 18, the wire pressing elastic element 11 of the lower push mechanism assembly B uses its elasticity to press the electrode wire head.

[0038] The specific action process is as follows: the servo motor 17 drives the rotating wire drum 5 to rotate to the set angle through the servo motor coupling 15, so that one end of the lower ejector length adjusting screw 9 is aligned with the hole on the rotating wire drum 5. At this time, the lower ejector cylinder 6 is turned on, and the push arm of the lower ejector cylinder 6 presses down on the lower ejector screw fixing plate 8, transmitting the downward force to the lower ejector length adjusting screw 9, so that the lower end of the lower ejector length adjusting screw 9 passes through the hole on the rotating wire drum 5 and contacts the upper end of the lower ejector rod 10 inside the rotating wire drum 5 to press it downward. At the same time, the wire pressing elastic element 11 is pressed down by the step cap of the lower ejector rod 10 to be compressed. At this time, due to the downward movement of the lower ejector rod 10, the arc-shaped pressing piece 18 also moves downward and is pressed against the lower ejector rod 10. A gap of a certain size is formed between the electrode wire 20 and the rotating wire drum 5. When the end of the electrode wire 20 spitted out of the wire feeding tube 19 enters the gap, the lower push cylinder 6 is closed. After the push arm of the lower push cylinder 6 is reset upward, the force acting on the lower push rod 10 is cancelled. The step cap of the lower push rod 10 is elastically pushed by the wire pressing elastic element 11, and the lower push rod 10 moves upward, driving the arc-shaped pressing piece 18 to move upward until the gap between the arc-shaped pressing piece 18 and the rotating wire drum 5 disappears. The end of the electrode wire 20 is clamped and fixed by the pressure between the arc-shaped pressing piece 18 and the rotating wire drum 5, and the wire pressing elastic element 11 provides a certain clamping force, thereby achieving a fixing effect on the end of the electrode wire 20.

[0039] The utility model can realize automatic clamping and fixing of the wire head of the electrode wire in the wire feeding tube when the rotating wire drum rotates to a specified angle and position, without manual fixing operation of the electrode wire, thereby improving the work efficiency of workers.

[0040] The above content is only a preferred embodiment of the present invention. For ordinary technicians in this field, various changes and variations can be made in the specific implementation methods and application scope based on the concept of the present invention. The content of this specification should not be understood as a limitation of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A wire head fixing device for a wire-shaped electrode wire drum, characterized in that: It includes a wire drum structure component (A), a lower push mechanism component (B), a servo drive component (C) and a wire feeding tube structure component (D); The wire drum structural assembly (A) comprises: a wire drum driving screw synchronous wheel (1), a wire drum rotating left supporting bearing (2), a wire drum rotating left supporting seat (4), a rotating wire drum (5) with an internal shaft (51), a wire drum rotating right supporting seat (12), and a wire drum rotating right supporting bearing (13); The lower ejection mechanism assembly (B) comprises: a lower ejection cylinder fixing bracket (7), a lower ejection cylinder (6), a lower ejection screw fixing plate (8), a lower ejection length adjustment screw (9), a lower ejection rod (10), a wire pressing elastic element (11), and an arc-shaped pressing sheet (18); The servo drive assembly (C) includes: a servo motor coupling (15), a servo motor connecting plate (16), and a servo motor (17); The wire feeding tube structural assembly (D) comprises: a wire feeding tube (19) and a fixing part thereof; One end of the rotating wire drum (5) is connected to a wire drum rotating left support seat (4), and the wire drum rotating left support seat (4) is connected to a wire drum driving screw synchronous wheel (1) through an internally arranged wire drum rotating left support bearing (2). The end of the rotating wire drum (5) away from the wire drum rotating left support seat (4) is connected to a wire drum rotating right support seat (12), and the wire drum rotating right support seat (12) is connected to a servo motor coupling (15) through an internally arranged wire drum rotating right support bearing (13). The servo motor coupling (15) is provided with a servo motor connecting plate (16) on the outside, and a servo motor (17) is provided on one side of the servo motor connecting plate (16). A lower top cylinder (6) is provided on the upper part of the rotating wire drum (5), and the wire drum rotating right support seat (12) is connected to a servo motor coupling (15). ) is provided with a lower top cylinder fixing bracket (7) on the upper part, the lower top cylinder (6) and the lower top cylinder fixing bracket (7) are connected side by side on the left and right sides, a lower top screw fixing plate (8) is provided between the rotating wire drum (5) and the lower top cylinder (6), the lower top screw fixing plate (8) is connected to a lower top length adjustment screw (9) with one end passing through the rotating wire drum (5), one end of the lower top length adjustment screw (9) is connected to a lower top rod (10) with one end passing through the shaft rod (51) inside the rotating wire drum (5), a wire pressing elastic element (11) is provided on the periphery of the lower top rod (10), an arc-shaped pressing sheet (18) is provided at the end of the lower top rod (10) passing through the rotating wire drum (5) downward, and a wire feeding tube (19) is provided between the arc-shaped pressing sheet (18) and the rotating wire drum (5).

2. The wire head fixing device for a wire-shaped electrode reel according to claim 1, characterized in that: The wire drum rotating left support seat (4) is connected to the wire drum driving screw synchronous wheel (1) via the wire drum rotating left support bearing (2) and the second wire drum rotating left support bearing (3) arranged side by side in the horizontal direction inside.

3. The wire head fixing device for a wire-shaped electrode reel according to claim 1, characterized in that: A right wire drum rotating support seat (12) is provided inside with a right wire drum rotating support bearing (13) and a second right wire drum rotating support bearing (14) which are arranged side by side in a horizontal direction.

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