Taper head moving mechanism of high-precision medium-speed wire feeding machine tool

Abstract

The utility model discloses a high-precision medium-speed wire feeding machine tool taper head moving mechanism which comprises a moving mechanism body, a connecting plate and a bottom plate, the connecting plate is roughly in an L shape, a mounting groove is formed in one side of the connecting plate, and the moving mechanism body comprises a U-axis moving mechanism, a V-axis moving mechanism and a guide rail base. The U-axis moving mechanism comprises a first servo motor, a first lead screw, a first guide rail and a first sliding block, the output end of the first servo motor is connected with a first synchronous wheel, the first lead screw is connected with the first synchronous wheel through a bearing, a first nut seat is further arranged on the first lead screw, and the V-axis moving mechanism comprises a second servo motor, a second lead screw, a second guide rail and a second sliding block. The output end of the second servo motor is connected with a second synchronizing wheel, the second lead screw is connected with the second synchronizing wheel through a bearing, and the second lead screw is further provided with a second nut seat, so that the vibration influence caused by taper head machining and the servo motors is reduced, the moving positioning precision of the moving mechanism is improved, and the overall machining precision is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a wire-cut machine tool technical field, concretely is a high-precision middle wire-cut machine tool taper head moving mechanism. BACKGROUND

[0002] The middle wire-cut machine tool is also a kind of wire-cut electrical discharge machine, and its working principle is to use continuously moving molybdenum wire (called electrode wire) as electrode to carry out pulse spark discharge etching and cutting of metal on workpiece to form. Since the pulse spark discharge etching and cutting of metal on workpiece are needed, the middle wire-cut machine tool taper head is a special accessory for machining conical hole or conical surface on machine tool, which can realize accurate taper machining on workpiece by being installed on the main shaft of machine tool. However, the existing middle wire-cut machine tool taper head moving mechanism has poor stability due to vibration of taper head during machining, which may cause deviation in subsequent machining. SUMMARY

[0003] The utility model discloses a high-precision middle wire-cut machine tool taper head moving mechanism to solve the above technical problems.

[0004] To achieve the above object, the utility model provides the following technical scheme: a high-precision middle wire-cut machine tool taper head moving mechanism, including moving mechanism body, connecting plate being arranged on moving mechanism body and bottom plate being arranged below moving mechanism body, the connecting plate is generally L type and the side, away from moving mechanism body of connecting plate is provided with installation groove, the moving mechanism body includes U axle moving mechanism, V axle moving mechanism and the guide rail seat being arranged between U axle moving mechanism and V axle moving mechanism, the U axle moving mechanism includes first servo motor, first screw rod, first guide rail being arranged on guide rail seat and first sliding block being arranged on first guide rail, the first servo motor output is connected with first synchronous wheel, the first screw rod is connected with first synchronous wheel through bearing, first nut seat for being connected with first sliding block is also arranged on the first screw rod, the V axle moving mechanism includes second servo motor, second screw rod, second guide rail being arranged on guide rail seat and second sliding block being arranged on second guide rail, the second servo motor output is connected with second synchronous wheel, the second screw rod is connected with second synchronous wheel through bearing, second nut seat for being connected with second sliding block is also arranged on the second screw rod.

[0005] Preferably, a buffer pad is arranged between the first servo motor and the guide rail seat, and a buffer pad is also arranged between the second servo motor and the guide rail seat.

[0006] Preferably, a limit switch bracket is arranged on the side, away from the first servo motor, of the guide rail seat, and a limit switch bracket is also arranged on the side, away from the second servo motor, of the guide rail seat, and a short-handle limit switch is mounted on both sides of the limit switch bracket.

[0007] Preferably, the limit switch support is centrally fixedly mounted with a limit plate.

[0008] Preferably, the first and second synchronous wheels are each provided with a shroud side plate.

[0009] Preferably, the first lead screw is provided with a bearing seat at a bearing connection with the first synchronous wheel, and the second lead screw is also provided with a bearing seat at a bearing connection with the second synchronous wheel.

[0010] Preferably, the guide rail seat is provided in an L shape, and is provided with a groove below the second lead screw and a groove above the first lead screw.

[0011] Preferably, the connecting plate is further provided with a plurality of mounting holes.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] Through the L-shaped design of the connecting plate, and the mounting groove provided on the side of the connecting plate away from the moving mechanism body for mounting the taper head, the vibration generated during machining of the taper head is away from the moving mechanism body, and the vibration is weakened, thereby enhancing the stability of the moving mechanism body, and the first servo motor and the first synchronous wheel cooperate with the first lead screw, the second servo motor and the second synchronous wheel cooperate with the second lead screw to drive the movement of the U shaft and the V shaft, the vibration of the servo motor itself is lower through the synchronous wheel, and the first servo motor and the second servo motor are provided with the buffer pad between the guide rail seat, so that the vibration of the servo motor itself is further reduced, thereby improving the movement positioning precision of the moving mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0015] Figure 1 It is the structure schematic view of the high-precision medium-speed wire-cut machine tool taper head moving mechanism of the embodiment;

[0016] Figure 2 It is the schematic view of the high-precision medium-speed wire-cut machine tool taper head moving mechanism of the embodiment;

[0017] Figure 3 It is the schematic view of the moving mechanism body highlighting the U shaft moving mechanism of the embodiment;

[0018] Figure 4 is the schematic view of the mobile mechanism body highlighting the V-axis mobile mechanism of the embodiment;

[0019] Figure 5 is the bottom view schematic view of the high-precision middle-wire machine tool taper head mobile mechanism of the embodiment;

[0020] Figure 6 is the structural schematic view of the guide rail seat of the embodiment;

[0021] Figure 7 is the schematic view of the first and second synchronous wheels of the embodiment.

[0022] In the drawings, the components represented by each reference numeral are listed as follows:

[0023] 1, mobile mechanism body; 2, connecting plate; 3, bottom plate; 4, mounting groove; 5, U-axis mobile mechanism; 6, V-axis mobile mechanism; 7, guide rail seat; 8, first servo motor; 9, first lead screw; 10, first guide rail; 11, first sliding block; 12, first synchronous wheel; 13, first nut seat; 14, second servo motor; 15, second lead screw; 16, second guide rail; 17, second sliding block; 18, second synchronous wheel; 19, second nut seat; 20, buffer pad; 21, limit switch support; 22, short handle limit switch; 23, limit plate; 24, shroud side plate; 25, bearing seat; 26, groove; 27, mounting hole. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to 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.

[0025] Please refer to Figures 1-7The utility model provides a technical scheme: a high accuracy middle wire -feed machine tool taper head moving mechanism, including moving mechanism body 1, the connecting plate 2 of setting in moving mechanism body 1 and the bottom plate 3 of setting below moving mechanism body 1, the connecting plate 2 is generally L type and is provided with the installation groove 4 in the side of connecting plate 2 away from moving mechanism body 1, moving mechanism body 1 includes U axle moving mechanism 5, V axle moving mechanism 6 and the guide rail seat 7 of setting between U axle moving mechanism 5 and V axle moving mechanism 6, U axle moving mechanism 5 includes first servo motor 8, first screw rod 9, the first guide rail 10 of setting on guide rail seat 7 and the first sliding block 11 of setting on first guide rail 10, and first servo motor 8 output is connected with first synchronous wheel 12, and first screw rod 9 is connected with first synchronous wheel 12 through bearing, and first screw rod 9 is still provided with first nut seat 13 for connecting with first sliding block 11, V axle moving mechanism 6 includes second servo motor 14, second screw rod 15, the second guide rail 16 of setting on guide rail seat 7 and the second sliding block 17 of setting on second guide rail 16, and second servo motor 14 output is connected with second synchronous wheel 18, and second screw rod 15 is connected with second synchronous wheel 18 through bearing, and second screw rod 15 is still provided with second nut seat 19 for connecting with second sliding block 17.

[0026] Specifically, the first servo motor 8 and the guide rail seat 7 are provided with a buffer pad 20, and the second servo motor 14 and the guide rail seat 7 are also provided with a buffer pad 20. By setting the buffer pad 20 between the first servo motor 8 and the guide rail seat 7 and between the second servo motor 14 and the guide rail seat 7, the buffer pad 20 can effectively absorb the vibration generated by the first servo motor 8 and the second servo motor 14 during operation, thereby improving the stability and processing precision of the moving mechanism body 1.

[0027] Specifically, the side of the guide rail seat 7 away from the first servo motor 8 is provided with a limit switch bracket 21, and the side of the guide rail seat 7 away from the second servo motor 14 is also provided with a limit switch bracket 21. The limit switch bracket 21 is provided with a short handle limit switch 22 on both sides. By setting the limit switch bracket 21 and the short handle limit switch 22, the moving mechanism body 1 can be accurately stopped when reaching the preset position, avoiding equipment damage or processing errors caused by excessive movement.

[0028] Further, the limit switch bracket 21 is fixedly installed with a limit plate 23 at the center. By setting the limit plate 23, mechanical failure caused by improper operation can be prevented, ensuring long-term stable operation of the moving mechanism.

[0029] Specifically, the first synchronous wheel 12 and the second synchronous wheel 18 are provided with a shroud side plate 24 outside, and the shroud side plate 24 can effectively prevent foreign matters such as metal chips from entering the inside of the synchronous wheel, so as to protect the synchronous wheel from pollution and damage, thereby prolonging the service life of the first synchronous wheel 12 and the second synchronous wheel 18.

[0030] Further, the first screw rod 9 is provided with a bearing seat 25 at the bearing connection position of the first synchronous wheel 12, and the second screw rod 15 is also provided with a bearing seat 25 at the bearing connection position of the second synchronous wheel 18, and the bearing seat 25 can effectively protect the bearing and avoid the abrasion caused by the direct contact between the bearing and foreign matters such as metal chips, thereby ensuring the smooth operation of the screw rod and the synchronous wheel.

[0031] Referring to Figure 6 The guide rail seat 7 is provided in an L shape, and the guide rail seat 7 is provided with a groove 26 below the second screw rod 15, and the guide rail seat 7 is also provided with a groove 26 above the first screw rod 9. Through the above arrangement, the groove 26 can make the first nut seat 13 and the second nut seat 19 move smoothly, thereby ensuring the positioning accuracy of the movement. The design of the groove 26 of the guide rail seat 7 can also reduce the weight of the guide rail seat 7, thereby reducing the inertia of the whole movement mechanism and making the movement mechanism respond faster and position more accurately.

[0032] Specifically, the connecting plate 2 is also provided with a plurality of mounting holes 27, and the mounting holes 27 can make the user conveniently install different taper heads on the movement mechanism.

[0033] One specific application example of the embodiment is as follows:

[0034] When the device is used, the operator inputs the corresponding taper head movement parameters, including the movement distance, speed and direction, etc. through the control panel according to the processing requirements. After the parameters are input, the machine tool is started, and the first servo motor 8 and the second servo motor 14 will drive the first synchronous wheel 12 and the second synchronous wheel 18 to rotate according to the input instructions, so as to make the first nut seat 13 and the second nut seat 19 move in the groove 26 of the guide rail seat 7, thereby making the first nut seat 13 and the second nut seat 19 drive the first sliding block 11 and the second sliding block 17 to move on the first guide rail 10 and the second guide rail 16, so as to make the taper head move in the U direction and the V direction. When processing, the taper head is far away from the movement mechanism body 1, and the movement mechanism body 1 is less affected by the taper head processing. At the same time, the buffer pad 20 between the first servo motor 8 and the second servo motor 14 and the guide rail seat 7 absorbs the vibration generated by the first servo motor 8 and the second servo motor 14, reduces the vibration influence caused by the taper head processing and the servo motor, improves the movement positioning accuracy of the movement mechanism, and improves the overall processing accuracy.

[0035] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and the like is the orientation or position relationship based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0036] In the utility model, unless explicitly specified and limited, the terms "mounting", "setting", "connecting", "fixing", "screw connection" and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or be integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements or the interaction relationship of two elements, unless explicitly limited, the above-mentioned terms in the utility model can be understood according to the specific meaning in the utility model by the ordinary skilled in the art according to the specific situation.

[0037] Although the embodiments of the utility model have been shown and described, it can be understood by the ordinary skilled in the art that the embodiments can be modified without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A high-precision medium-speed wire machine taper head moving mechanism, characterized in that: The utility model relates to a kind of mobile mechanism, including mobile mechanism body (1), connecting plate (2) being arranged on mobile mechanism body (1) and bottom plate (3) being arranged below mobile mechanism body (1), the connecting plate (2) is generally L type and the side of the connecting plate (2) away from mobile mechanism body (1) is provided with mounting groove (4), the mobile mechanism body (1) includes U-axis mobile mechanism (5), V-axis mobile mechanism (6) and guide rail seat (7) being arranged between U-axis mobile mechanism (5) and V-axis mobile mechanism (6), the U-axis mobile mechanism (5) includes first servo motor (8), first screw rod (9), first guide rail (10) being arranged on guide rail seat (7) and first slider (11) being arranged on first guide rail (10), the first servo motor (8) output end is connected with first synchronous wheel (12), the first screw rod (9) is connected with first synchronous wheel (12) by bearing, first screw rod (9) is also provided with first nut seat (13) for being connected with first slider (11), the V-axis mobile mechanism (6) includes second servo motor (14), second screw rod (15), second guide rail (16) being arranged on guide rail seat (7) and second slider (17) being arranged on second guide rail (16), the second servo motor (14) output end is connected with second synchronous wheel (18), the second screw rod (15) is connected with second synchronous wheel (18) by bearing, the second screw rod (15) is also provided with second nut seat (19) for being connected with second slider (17).

2. The high-precision medium-speed machine tool taper head moving mechanism according to claim 1, characterized in that: Buffer pad (20) is arranged between the first servo motor (8) and guide rail seat (7), and buffer pad (20) is also arranged between the second servo motor (14) and guide rail seat (7).

3. The high-precision medium-speed machine tool taper head moving mechanism according to claim 1, characterized in that: Limit switch bracket (21) is arranged on the side of guide rail seat (7) away from the first servo motor (8), and limit switch bracket (21) is also arranged on the side of guide rail seat (7) away from the second servo motor (14), and short-handle limit switch (22) is mounted on both sides of limit switch bracket (21).

4. The high-precision medium-speed machine tool taper head moving mechanism according to claim 3, characterized in that: Limit plate (23) is fixedly mounted in the center of limit switch bracket (21).

5. The high-precision medium-speed machine tool taper head moving mechanism according to claim 1, characterized in that: Housing side plate (24) is arranged on the outer side of the first synchronous wheel (12) and the second synchronous wheel (18).

6. The high-precision medium-speed machine tool taper head moving mechanism according to claim 1, characterized in that: Bearing seat (25) is arranged at the bearing connection of the first screw rod (9) and the first synchronous wheel (12), and bearing seat (25) is also arranged at the bearing connection of the second screw rod (15) and the second synchronous wheel (18).

7. The high-precision medium-speed machine tool taper head moving mechanism according to claim 1, characterized in that: Guide rail seat (7) is L-shaped, recess (26) is arranged below the guide rail seat (7) located the second screw rod (15), and recess (26) is also arranged on the bottom of the guide rail seat (7) located the first screw rod (9).

8. The high-precision medium-speed machine tool taper head moving mechanism according to claim 1, characterized in that: A plurality of mounting holes (27) are further arranged on the connecting plate (2).

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