Water jet laser head for high-precision machining

Abstract

The invention relates to the technical field of water jet laser head machining, and discloses a water jet laser head for high-precision machining, which comprises a supporting mechanism, the supporting mechanism comprises a spray head, the outer wall of the bottom of the spray head is fixedly connected with a nozzle, and the outer wall of the spray head is fixedly connected with a water inlet pipe. A first fixing frame fixedly sleeves the outer surface of the top of the spray head, a supporting block is fixedly connected to the inner wall of the spray nozzle, a fixing rod is fixedly connected to the inner wall of the first fixing frame, a first hydraulic rod is fixedly connected to the inner wall of the first fixing frame, and an auxiliary mechanism is arranged in the spray head. In the process of machining a high-precision machining workpiece, tiny scrap iron possibly existing in water is filtered through the filter plate, and the scrap iron is discharged from the interior of the spray head through the water outlet pipe, so that the situation that impurities are accumulated at the position of the spray head, and consequently the spray head is blocked is avoided; therefore, the serious influence of the blockage of the spray head on the continuity and the quality of workpiece processing is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of water jet laser head processing, in particular to a water jet laser head used for high-precision processing. Background Art

[0002] In the development of modern manufacturing industry, the requirements for processing accuracy are increasing day by day. Traditional processing has limitations. Water jet cold processing has obvious advantages but there is room for improvement in accuracy. Laser processing has high accuracy but has disadvantages. Technological progress has led to the combination of water jet and laser, and water jet laser heads have come into being to meet the needs of high-precision processing.

[0003] A patent application with application number CN201820088464.6 discloses a laser water jet processing device, including a laser emitting device and a laser head connected thereto, wherein the laser head includes a nozzle, a rotating disk, a separation base and a connecting seat which are coaxially connected in sequence, a laser through hole is coaxially connected in the center of the nozzle, the rotating disk and the separation base, and the laser through hole is connected to the laser transmission hole of the connecting seat, a first water flow channel is formed in the nozzle, a water nozzle is installed on the first water flow channel, a second water flow channel is formed in the rotating disk, a third water flow channel is formed in the gap between the rotating disk and the separation base, a fourth water flow channel is formed in the separation base, a water inlet is formed on the outer wall of the separation base, and a plurality of auxiliary gas inlet holes are formed in the connecting seat.

[0004] In summary, in the process of machining high-precision workpieces, there is a chance that small iron filings and other solid impurities will be mixed into the water at the water inlet, and then these impurities will easily accumulate at the position of the nozzle, causing the nozzle to be blocked. Once the nozzle is blocked, the shape and pressure distribution of the water jet will change, and the laser will not be able to operate normally, which will have a serious impact on the continuity and quality of the processing.

[0005] To this end, we proposed a water jet laser head for high-precision machining. Summary of the invention

[0006] In view of the deficiencies of the prior art, the present invention provides a water jet laser head for high-precision machining to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a water jet laser head for high-precision machining, comprising a supporting mechanism, the supporting mechanism comprising a nozzle, a nozzle is fixedly connected to the outer wall of the bottom of the nozzle, a water inlet pipe is fixedly connected to the outer wall of the nozzle, a first fixing frame is fixedly sleeved on the outer surface of the top of the nozzle, a supporting block is fixedly connected to the inner wall of the nozzle, a fixing rod is fixedly connected to the inner wall of the first fixing frame, a first hydraulic rod is fixedly connected to the inner wall of the first fixing frame, an auxiliary mechanism is arranged inside the nozzle, a laser device is arranged on the top of the nozzle, and also includes:

[0008] The adjustment mechanism includes a first support frame fixedly connected to the first hydraulic rod, a second hydraulic rod is fixedly connected to the inner wall of the first support frame, a third through hole is opened on the top outer surface of the first support frame, the outer wall of one end of the second hydraulic rod away from the first support frame is fixedly connected to the first connecting frame, a concave mirror is fixedly connected to the inner wall of the first connecting frame, and the output end of the second hydraulic rod is fixedly connected to the second fixed block.

[0009] According to the above technical solution, a fixed shaft is fixedly connected to the bottom outer wall of the first support frame, the fixed shaft passes through the fixed rod and is fixedly connected to the first connecting frame, a spring is fixedly connected to the bottom outer wall of the first support frame, one end of the spring away from the first support frame is fixedly connected to the fixed rod, and the fixed shaft is used to improve the stability of the first support frame during movement.

[0010] According to the above technical solution, the top outer wall of the second fixed block is fixedly connected to the second connecting frame, the inner wall of the second connecting frame is fixedly connected to the motor, the output end of the motor passes through the second connecting frame and is fixedly connected to the second supporting frame, the inner wall of the second supporting frame is fixedly connected to the laser device, and the motor can deflect the laser device at a certain angle through the second connecting frame.

[0011] According to the above technical solution, the inner wall of the second fixed block is rotatably connected to a rotating rod via a rotating shaft, and the end of the rotating rod away from the second fixed block is rotatably connected to a sliding block via a rotating shaft, and the outer surface of the sliding block is slidably connected to the inner wall of the third through hole. The number of the rotating rods is two, and the two rotating rods are symmetrically arranged with the central axis of the second fixed block as the center, and the rotating rod is used to improve the stability of the second fixed block during movement.

[0012] According to the above technical solution, the auxiliary mechanism includes a first fixed block fixedly connected to the inner wall of the nozzle, a groove is provided on the outer surface of the first fixed block, a conversion block is fixedly connected to the inner wall of the first fixed block, a second through hole is provided on the inner wall of the conversion block, and the groove facilitates the water inlet pipe to inject water into the interior of the nozzle.

[0013] According to the above technical solution, a filter plate is fixedly connected to the top outer wall of the first fixed block, a first through hole is fixedly connected to the outer surface of the filter plate, an end of the filter plate away from the first fixed block is fixedly connected to a third fixed frame, a transparent lens is fixedly connected to the inner wall of the third fixed frame, an outer wall of the third fixed frame is fixedly connected to the nozzle, and the filter plate filters solid impurities in the water, thereby preventing the solid impurities from clogging the conversion block.

[0014] According to the above technical solution, the outer wall of one end of the first hydraulic rod away from the first fixed frame is fixedly connected to the second fixed frame, the inner wall of the second fixed frame is symmetrically arranged with respect to the central axis of the nozzle, the number of the first hydraulic rods is two, and the two first hydraulic rods are symmetrically arranged with respect to the central axis of the first fixed frame, and the first hydraulic rod is used to control the distance between the first connecting frame and the third fixed frame.

[0015] According to the above technical solution, a first connecting rod is fixedly connected to the inner wall of the first fixing frame on a side away from the nozzle, the inner wall of the first connecting rod is fixedly connected to the water inlet pipe, the outer wall of the nozzle at one end away from the nozzle is fixedly connected to the water outlet pipe, the outer surface of the water outlet pipe at one end away from the nozzle is fixedly sleeved with a second connecting rod, the end of the second connecting rod away from the water outlet pipe is fixedly connected to the first fixing frame, and the water outlet pipe is used to discharge solid impurities in the water.

[0016] Compared with the prior art, the present invention provides a water jet laser head for high-precision machining, which has the following beneficial effects:

[0017] 1. The present invention provides a water jet laser head for high-precision machining. In the process of machining high-precision workpieces, the fine iron filings that may exist in the water are filtered through a filter plate, and the iron filings are discharged from the inside of the nozzle through a water outlet pipe, thereby avoiding the accumulation of these impurities at the position of the nozzle and causing nozzle blockage, thereby reducing the serious impact of nozzle blockage on the continuity and quality of workpiece machining.

[0018] 2. The present invention sets an auxiliary mechanism, and after filtering the fine iron filings through the filter plate, the fine iron filings are prompted to flow along the outer wall of the filter plate, and the fine iron filings are discharged from the inside of the nozzle through the side of the filter plate close to the water outlet pipe, so as to avoid blockage inside the nozzle, thereby reducing the impact on the continuity of the workpiece during the processing.

[0019] 3. The present invention provides an adjustment mechanism and can change the distance between the laser device and the concave mirror with the help of a second hydraulic rod. Through different focusing effects of the concave mirror, the laser device can present different effects on the workpiece processing. Therefore, when processing some workpieces, there is no need to replace the nozzle, thereby achieving continuous operation.

[0020] 4. The present invention sets a motor and a second support frame, and drives the second rotating frame to deflect at a certain angle through the motor, so that a certain angle can be formed between the laser generated by the laser equipment and the water flow. When there is a specific angle between the water flow and the laser, it can have a unique finishing effect on the cutting edge, making the cutting edge smoother and flatter, effectively improving the cutting accuracy, and reducing subsequent finishing processes such as grinding, which is conducive to carrying out high-precision processing operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall front structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the overall front cross-sectional structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the supporting mechanism structure of the present invention;

[0024] Figure 4 It is a schematic diagram of the auxiliary mechanism and the regulating mechanism structure of the present invention;

[0025] Figure 5 It is a schematic diagram of the explosion structure of the auxiliary mechanism of the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the regulating mechanism of the present invention;

[0027] Figure 7 It is a schematic diagram of the structure of the regulating mechanism of the present invention;

[0028] Figure 8 For the present invention Figure 1 Schematic diagram of the enlarged structure of A.

[0029] In the figure: 1, support mechanism; 101, nozzle; 102, nozzle; 103, water inlet pipe; 104, first fixed frame; 105, first connecting rod; 106, water outlet pipe; 107, second connecting rod; 108, second fixed frame; 109, first hydraulic rod; 110, support block; 111, fixed rod; 2, auxiliary mechanism; 201, first fixed block; 202, groove; 203, filter plate; 204, first through hole; 205, third fixed frame ; 206, transparent lens; 207, conversion block; 208, second through hole; 3, adjustment mechanism; 301, first support frame; 302, second hydraulic rod; 303, third through hole; 304, fixed shaft; 305, spring; 306, first connecting frame; 307, concave mirror; 308, second fixed block; 309, rotating rod; 310, sliding block; 311, second connecting frame; 312, motor; 313, second support frame; 4, laser equipment. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Example 1: See Figure 1-Figure 5 The present invention provides a technical solution: a water jet laser head for high-precision processing, comprising a supporting mechanism 1, the supporting mechanism 1 comprising a nozzle 101, a nozzle 102 is fixedly connected to the bottom outer wall of the nozzle 101, a water inlet pipe 103 is fixedly connected to the outer wall of the nozzle 101, a first fixing frame 104 is fixedly sleeved on the top outer surface of the nozzle 101, a supporting block 110 is fixedly connected to the inner wall of the nozzle 102, the supporting block 110 supports and fixes the outer wall of the conversion block 207, a fixing rod 111 is fixedly connected to the inner wall of the first fixing frame 104, a first hydraulic rod 109 is fixedly connected to the inner wall of the first fixing frame 104, an auxiliary mechanism 2 is arranged inside the nozzle 101, a laser device 4 is arranged on the top of the nozzle 101, and also includes:

[0034] The adjusting mechanism 3 includes a first support frame 301 fixedly connected to the first hydraulic rod 109, a second hydraulic rod 302 is fixedly connected to the inner wall of the first support frame 301, a third through hole 303 is opened on the top outer surface of the first support frame 301, a first connecting frame 306 is fixedly connected to the outer wall of one end of the second hydraulic rod 302 away from the first support frame 301, a concave mirror 307 is fixedly connected to the inner wall of the first connecting frame 306, and a second fixed block 308 is fixedly connected to the output end of the second hydraulic rod 302. In the process of processing high-precision workpieces, fine iron filings that may exist in the water are filtered through the filter plate 203, and the iron filings are discharged from the inside of the nozzle 101 through the outlet pipe 106, so as to avoid the accumulation of these impurities at the position of the nozzle 101 and cause the nozzle 101 to be blocked, thereby reducing the blockage of the nozzle 101. The serious impact on the continuity and quality of the workpiece processing will be reduced.

[0035] The outer wall of one end of the first hydraulic rod 109 away from the first fixed frame 104 is fixedly connected to the second fixed frame 108, and the inner wall of the second fixed frame 108 is symmetrically arranged with respect to the central axis of the nozzle 101. The first hydraulic rod 109 is used to control the distance between the first connecting frame 306 and the third fixed frame 205. There are two first hydraulic rods 109, and the two first hydraulic rods 109 are symmetrically arranged with respect to the central axis of the first fixed frame 104.

[0036] A first connecting rod 105 is fixedly connected to the inner wall of the first fixed frame 104 on the side away from the nozzle 101, and the inner wall of the first connecting rod 105 is fixedly connected to the water inlet pipe 103. An outer wall of the end of the nozzle 101 away from the nozzle 102 is fixedly connected to a water outlet pipe 106, and the water outlet pipe 106 is used to discharge solid impurities in the water. A second connecting rod 107 is fixedly sleeved on the outer surface of one end of the water outlet pipe 106 away from the nozzle 101, and one end of the second connecting rod 107 away from the water outlet pipe 106 is fixedly connected to the first fixed frame 104.

[0037] The auxiliary mechanism 2 includes a first fixed block 201 fixedly connected to the inner wall of the nozzle 101. A groove 202 is provided on the outer surface of the first fixed block 201. The groove 202 facilitates the water inlet pipe 103 to inject water into the nozzle 101. A conversion block 207 is fixedly connected to the inner wall of the first fixed block 201. A second through hole 208 is provided on the inner wall of the conversion block 207.

[0038] A filter plate 203 is fixedly connected to the top outer wall of the first fixed block 201, and the filter plate 203 filters solid impurities in the water, thereby preventing the solid impurities from clogging the conversion block 207. A first through hole 204 is fixedly connected to the outer surface of the filter plate 203, and an end of the filter plate 203 away from the first fixed block 201 is fixedly connected to a third fixed frame 205, and a transparent lens 206 is fixedly connected to the inner wall of the third fixed frame 205, and the outer wall of the third fixed frame 205 is fixedly connected to the nozzle 101.

[0039] The working principle of this embodiment is as follows: in the process of machining high-precision workpieces, the filter plate 203 is used to filter the fine iron filings that may be contained in the water, and then the iron filings are discharged from the inside of the nozzle 101 through the outlet pipe 106, so as to prevent these impurities from accumulating at the nozzle 101 and avoid clogging of the nozzle 101, thereby reducing the serious impact of clogging of the nozzle 101 on the continuity and quality of workpiece machining. After the filter plate 203 completes the filtration of the fine iron filings, the fine iron filings will flow along the outer wall of the filter plate 203 and be discharged from the inside of the nozzle 101 through the side of the filter plate 203 close to the outlet pipe 106, thereby avoiding clogging inside the nozzle 101 and reducing the adverse effects on the continuity of the workpiece during machining. After the filtered water is converted by the conversion block 207, the water column is sprayed out by the nozzle 102.

[0040] Example 2: Please refer to Figure 6-Figure 8 On the basis of the first embodiment, the present invention provides a technical solution: a fixed shaft 304 is fixedly connected to the bottom outer wall of the first support frame 301, the fixed shaft 304 passes through the fixed rod 111, and is fixedly connected to the first connecting frame 306, a spring 305 is fixedly connected to the bottom outer wall of the first support frame 301, and one end of the spring 305 away from the first support frame 301 is fixedly connected to the fixed rod 111, and the fixed shaft is used to improve the stability of the first support frame during movement.

[0041] The top outer wall of the second fixed block 308 is fixedly connected to the second connecting frame 311, and the inner wall of the second connecting frame 311 is fixedly connected to the motor 312. The output end of the motor 312 runs through the second connecting frame 311 and is fixedly connected to the second support frame 313. The motor can deflect the laser device at a certain angle through the second connecting frame. The inner wall of the second support frame 313 is fixedly connected to the laser device 4. With the help of the second hydraulic rod 302, the distance between the laser device 4 and the concave mirror 307 can be changed. Through the different focusing effects of the concave mirror 307, the laser device 4 can present different effects on the workpiece processing. Therefore, when processing part of the workpiece, there is no need to replace the nozzle 101, thereby achieving continuous operation.

[0042] The inner wall of the second fixed block 308 is rotatably connected to a rotating rod 309 via a rotating shaft, and the end of the rotating rod 309 away from the second fixed block 308 is rotatably connected to a sliding block 310 via a rotating shaft. The outer surface of the sliding block 310 is slidably connected to the inner wall of the third through hole 303, and the second rotating frame is driven by a motor 312 to deflect at a certain angle, so that a certain angle can be formed between the laser generated by the laser device 4 and the water flow. When there is a specific angle between the water flow and the laser, it can have a unique trimming effect on the cutting edge, making the cutting edge smoother and flatter, effectively improving the cutting accuracy, and reducing subsequent finishing processes such as grinding, which is conducive to carrying out high-precision processing operations. There are two rotating rods 309, and the two rotating rods 309 are symmetrically arranged with the central axis of the second fixed block 308 as the center.

[0043] The working principle of this embodiment is as follows: the distance between the laser device and the concave mirror can be adjusted by means of the second hydraulic rod, and the different focusing functions of the concave mirror can make the laser device present different effects on the workpiece processing. In this way, when processing some workpieces, there is no need to replace the nozzle, thereby achieving continuous operation. The second rotating frame is driven by the motor to produce a certain angle of deflection so that a specific angle is formed between the laser generated by the laser device and the water flow. When the water flow and the laser have this specific angle, a unique trimming effect can be exerted on the cutting edge, making the cutting edge smoother and flatter, effectively improving the cutting accuracy, and reducing subsequent finishing processes such as grinding, which is beneficial to carrying out high-precision processing operations.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A water jet laser head for high-precision machining, comprising a support mechanism (1), the support mechanism (1) comprising a nozzle (101), a nozzle (102) being fixedly connected to the outer wall of the bottom of the nozzle (101), a water inlet pipe (103) being fixedly connected to the outer wall of the nozzle (101), a first fixing frame (104) being fixedly sleeved on the outer surface of the top of the nozzle (101), a support block (110) being fixedly connected to the inner wall of the nozzle (102), a fixing rod (111) being fixedly connected to the inner wall of the first fixing frame (104), a first hydraulic rod (109) being fixedly connected to the inner wall of the first fixing frame (104), an auxiliary mechanism (2) being arranged inside the nozzle (101), and a laser device (4) being arranged on the top of the nozzle (101), characterized in that: Also included are: The adjustment mechanism (3) comprises a first support frame (301) fixedly connected to a first hydraulic rod (109); a second hydraulic rod (302) is fixedly connected to the inner wall of the first support frame (301); a third through hole (303) is provided on the top outer surface of the first support frame (301); a first connecting frame (306) is fixedly connected to the outer wall of one end of the second hydraulic rod (302) away from the first support frame (301); a concave mirror (307) is fixedly connected to the inner wall of the first connecting frame (306); and a second fixing block (308) is fixedly connected to the output end of the second hydraulic rod (302).

2. The water jet laser head for high-precision machining according to claim 1, characterized in that: A fixed shaft (304) is fixedly connected to the bottom outer wall of the first support frame (301); the fixed shaft (304) passes through the fixed rod (111) and is fixedly connected to the first connecting frame (306); a spring (305) is fixedly connected to the bottom outer wall of the first support frame (301); one end of the spring (305) away from the first support frame (301) is fixedly connected to the fixed rod (111).

3. The water jet laser head for high-precision machining according to claim 2, characterized in that: The top outer wall of the second fixed block (308) is fixedly connected to a second connecting frame (311), the inner wall of the second connecting frame (311) is fixedly connected to a motor (312), an output end of the motor (312) passes through the second connecting frame (311) and is fixedly connected to a second supporting frame (313), and the inner wall of the second supporting frame (313) is fixedly connected to the laser device (4).

4. The water jet laser head for high-precision machining according to claim 3, characterized in that: The inner wall of the second fixed block (308) is rotatably connected to a rotating rod (309) via a rotating shaft, and one end of the rotating rod (309) away from the second fixed block (308) is rotatably connected to a sliding block (310) via a rotating shaft, and the outer surface of the sliding block (310) is slidably connected to the inner wall of the third through hole (303). There are two rotating rods (309), and the two rotating rods (309) are symmetrically arranged with the central axis of the second fixed block (308) as the center.

5. The water jet laser head for high-precision machining according to claim 1, characterized in that: The auxiliary mechanism (2) comprises a first fixed block (201) fixedly connected to the inner wall of the nozzle (101), a groove (202) being provided on the outer surface of the first fixed block (201), a conversion block (207) being fixedly connected to the inner wall of the first fixed block (201), and a second through hole (208) being provided on the inner wall of the conversion block (207).

6. The water jet laser head for high-precision machining according to claim 5, characterized in that: A filter plate (203) is fixedly connected to the top outer wall of the first fixed block (201), a first through hole (204) is fixedly connected to the outer surface of the filter plate (203), an end of the filter plate (203) away from the first fixed block (201) is fixedly connected to a third fixed frame (205), an inner wall of the third fixed frame (205) is fixedly connected to a transparent lens (206), and an outer wall of the third fixed frame (205) is fixedly connected to the nozzle (101).

7. The water jet laser head for high-precision machining according to claim 1, characterized in that: The outer wall of one end of the first hydraulic rod (109) away from the first fixed frame (104) is fixedly connected to the second fixed frame (108), the inner wall of the second fixed frame (108) is symmetrically arranged with the central axis of the nozzle (101) as the center, the number of the first hydraulic rods (109) is two, and the two first hydraulic rods (109) are symmetrically arranged with the central axis of the first fixed frame (104) as the center.

8. The water jet laser head for high-precision machining according to claim 1, characterized in that: A first connecting rod (105) is fixedly connected to an inner wall of a side of the first fixing frame (104) away from the spray head (101); the inner wall of the first connecting rod (105) is fixedly connected to a water inlet pipe (103); an outer wall of an end of the spray head (101) away from the nozzle (102) is fixedly connected to a water outlet pipe (106); a second connecting rod (107) is fixedly sleeved on an outer surface of an end of the water outlet pipe (106) away from the spray head (101); and an end of the second connecting rod (107) away from the water outlet pipe (106) is fixedly connected to the first fixing frame (104).

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