Water jet cutter sand ring structure convenient to maintain

Abstract

The utility model discloses a water jet cutter sand ring structure convenient to maintain. A water jet scalpel sand ring structure convenient to maintain comprises a shell, a C-axis rotating arm is installed at the bottom of the shell, a water jet scalpel head is arranged below the shell, and a sand ring structure is arranged on the shell; the sand ring structure comprises an external installation shell installed on the top of the shell, a rotating pipe is installed in the shell and connected with the C-axis rotating arm, and the top end of the rotating pipe penetrates through the external installation shell. According to the water jet scalpel sand ring structure convenient to maintain, the sand ring structure comprising the mounting shell, the rotating pipe, the connector, the sand conveying hole, the first sealing ring and the second sealing ring is arranged, the sealing piece of the sand ring structure is arranged on the top of the shell instead of the C-axis rotating arm, and when the sealing piece is damaged, the C-axis rotating arm does not need to be detached, so that maintenance is convenient. And the speed of replacing the sealing element is higher, the sealing element is more convenient to replace, and the influence on normal production activities is smaller.

Description

Technical Field

[0001] The utility model relates to the technical field of water jets, in particular to a water jet sand ring structure convenient for maintenance. Background Art

[0002] Water jet cutting is a processing method that uses abrasive super high-pressure water jets to cut objects. It belongs to cold cutting and has the advantages of fast cutting speed, high cutting accuracy, smooth cutting surface, no thermal deformation, clean and pollution-free, etc. It is now widely used in industries such as ceramics, stone, glass, and metal processing; the five-axis water jet includes X, Y, Z, A, and C axes. Among them, the C axis controls the rotation of the water jet head around the vertical axis, and the A axis controls the swinging direction of the water jet head to select the inclination of the water jet head with respect to the cutting plane.

[0003] A common water jet sand ring is generally installed on the rotating shaft of the C axis. For example, a disclosed sealed sand passage based on an AC five-axis water jet includes a machine shell, a sand inlet block, and a skeleton oil seal provided inside the machine shell. The sand inlet block is provided inside the skeleton oil seal, and the sand inlet block is provided with a sand adding hole and a sand outlet hole. The sand adding hole communicates with the sand outlet hole. The sand adding hole is provided on the side of the sand inlet block, and the sand outlet hole is provided at the bottom of the sand inlet block. An empty hole communicating with the sand adding hole is provided on the side of the machine shell. A gap is provided between the sand inlet block and the inner wall of the machine shell to form a gravel turnover passage. Both the sand adding hole and the sand outlet hole are provided inside the sand inlet block, and the sand adding hole and the sand outlet hole are combined to form an L-shaped sand outlet passage. The entire sand passage turnover passage forms a closed loop through the output shaft, the skeleton oil seal, and the machine shell, and the sealing of the sand passage turnover passage is ensured through the skeleton oil seal and the output shaft, effectively preventing leakage of the sand passage.

[0004] In the above design, once the skeleton oil seal responsible for the sand ring seal is damaged and leaks, the entire C axis needs to be disassembled, and even the pipeline needs to be disassembled, which is very troublesome. And once the C axis is disassembled and reinstalled, its installation accuracy changes, and it needs to be calibrated for a long time before processing, which is likely to delay the normal production of the enterprise.

[0005] Therefore, it is necessary to provide a water jet sand ring structure convenient for maintenance to solve the above technical problems. Summary of the Utility Model

[0006] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a water jet sand ring structure convenient for maintenance, which can facilitate the replacement of seals and has less impact on production activities.

[0007] To achieve the above object, the technical solution adopted by the utility model is as follows:

[0008] A water jet sand ring structure facilitating maintenance, comprising: a housing, a C-axis rotating arm is installed at the bottom of the housing, the housing is provided with a sand ring structure, the sand ring structure includes an external mounting shell installed at the top of the housing, a rotating pipe is installed inside the housing, the bottom end of the rotating pipe is connected to the C-axis rotating arm, the rotating pipe is driven to rotate by a C-axis drive motor installed inside the housing, the top end of the rotating pipe penetrates the external mounting shell, and the rotating pipe is rotatably connected to the housing through a bearing, a first sealing ring and a second sealing ring are installed between the rotating pipe and the external mounting shell, there are two groups of the first sealing ring and the second sealing ring, a sand conveying hole is longitudinally formed on the rotating pipe, a connecting head is installed at the bottom end of the sand conveying hole, a sand inlet connecting head is installed on the external mounting shell, and the sand inlet connecting head is connected to a sand supply device.

[0009] Preferably, a first water conveying pipe is installed inside the rotating pipe.

[0010] Preferably, a water jet head is provided below the housing, and the connecting head is connected to the water jet head.

[0011] Preferably, an A-axis rotating arm is installed on the C-axis rotating arm, the A-axis rotating arm is connected to the water jet head, the A-axis rotating arm is also driven by a motor, a second rotating connection seat is installed at one end of the A-axis rotating arm, one end of the first water conveying pipe is connected to the second rotating connection seat, a second water conveying pipe is installed at the center of the A-axis rotating arm, one end of the second water conveying pipe is connected to the second rotating connection seat, and the other end is connected to the water jet head.

[0012] Preferably, a tool head mounting seat is installed on the A-axis rotating arm, the water jet head is connected to the tool head mounting seat, a gemstone nozzle is installed inside the tool head mounting seat, the gemstone nozzle is communicated with the water jet head, a pipe joint is installed at one end of the second water conveying pipe, the pipe joint is inserted into the tool head mounting seat, and a nut is sleeved on the pipe joint, and the nut is threadedly connected to the tool head mounting seat.

[0013] Preferably, a first mounting hole is formed on the external mounting shell.

[0014] Preferably, four second mounting holes are formed on the external mounting shell.

[0015] Compared with the prior art, the present utility model has the following beneficial effects:

[0016] (1) By providing a sand ring structure including a mounting shell, a rotating pipe, a connecting head, a sand conveying hole, a first sealing ring and a second sealing ring, the sealing member of the sand ring structure is arranged on the top of the housing rather than on the C-axis rotating arm. When the sealing member is damaged, it is not necessary to disassemble the C-axis rotating arm, and the speed of replacing the sealing member is faster, more convenient, and has less impact on normal production activities;

[0017] (2) The utility model realizes the free-angle rotation of the A-axis rotating arm by arranging a second water delivery pipe in the A-axis rotating arm and transferring the pipeline through the second rotating connection seat, so that the water supply pipeline of the water knife head does not affect the rotation of the A-axis rotating arm.

[0018] (3) The utility model can facilitate the replacement of the gemstone nozzle and make it more convenient to use by arranging a tool head mounting seat and fixing the pipe joint in the tool head mounting seat with a nut.

[0019] (4) The utility model is convenient for installing the sand inlet connection head and fixing the external mounting shell at the top of the shell by arranging a first mounting hole and four second mounting holes on the external mounting shell. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of the water knife sand ring structure convenient for maintenance provided by the utility model;

[0021] Figure 2 is Figure 1 the front view sectional structural diagram of the water knife sand ring structure convenient for maintenance shown in;

[0022] Figure 3 is Figure 2 the enlarged view of part A in;

[0023] Figure 4 is Figure 2 the enlarged view of part B in;

[0024] Figure 5 is Figure 1 the schematic structural diagram of the sand ring structure in the water knife sand ring structure convenient for maintenance shown in;

[0025] Figure 6 is Figure 1 the connection schematic diagram of the rotating pipe, the first sealing ring and the second sealing ring in the water knife sand ring structure convenient for maintenance shown in.

[0026] Among them, the names corresponding to the reference numerals are: 1 - housing, 2 - C-axis rotating arm, 3 - rotating pipe, 4 - first water delivery pipe, 5 - connector, 6 - first rotating connection seat, 7 - external mounting shell, 8 - sand inlet connection head, 9 - bearing, 10 - first sealing ring, 11 - second sealing ring, 12 - first mounting hole, 13 - second mounting hole, 14 - sand delivery hole, 16 - water knife head, 17 - second rotating connection seat, 18 - A-axis rotating arm, 19 - second water delivery pipe, 20 - tool head mounting seat, 21 - gemstone nozzle, 22 - pipe joint, 23 - nut. Detailed Embodiment

[0027] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments. The implementation manners of the present utility model include but are not limited to the following embodiments.

[0028] Embodiment 1:

[0029] As Figure 1-6 shown, it is a water jet sand ring structure provided by the present utility model for easy maintenance, including: a housing 1, a C-axis rotating arm 2 is installed at the bottom of the housing 1, the housing 1 is provided with a sand ring structure, the sand ring structure includes an external mounting shell 7 installed on the top of the housing 1, a rotating pipe 3 is installed inside the housing 1, the bottom end of the rotating pipe 3 is connected to the C-axis rotating arm 2, the rotating pipe 3 is driven to rotate by a C-axis drive motor installed inside the housing 1, the top end of the rotating pipe 3 penetrates through the external mounting shell 7, and the rotating pipe 3 is rotatably connected to the housing 1 through a bearing 9. A first sealing ring 10 and a second sealing ring 11 are installed between the rotating pipe 3 and the external mounting shell 7. There are two groups of the first sealing ring 10 and the second sealing ring 11. A first water delivery pipe 4 is installed inside the rotating pipe 3. The rotating pipe 3 is provided with sand delivery holes 14 throughout its length. A connector 5 is installed at the bottom end of the sand delivery hole 14. The connector 5 is used to connect a water jet head 16. A sand inlet connector 8 is installed on the external mounting shell 7. The sand inlet connector 8 is connected to a sand supply device. When in use, the top end of the first water delivery pipe 4 is connected to a high-pressure water source through a first rotating connection seat 6. High-pressure water passes through the first rotating connection seat 6 and the first water delivery pipe 4 and finally enters the water jet head 16. Fine sand is input into the external mounting shell 7 through the sand inlet connector 8 and enters the water jet head 16 from the side through the sand delivery holes 14 and the connector 5. The first sealing ring 10 and the second sealing ring 11 are used for the sealing of the sand ring structure. Due to the long-term rotation of the rotating pipe 3, the wear and aging speed of the first sealing ring 10 and the second sealing ring 11 will be accelerated. Once the first sealing ring 10 and the second sealing ring 11 are damaged and fine sand leaks, at this time, first remove the first rotating connection seat 6, pull up the external mounting shell 7 and remove it from the rotating pipe 3, and then remove the first sealing ring 10 and the second sealing ring 11 and replace them. There is no need to disassemble the rotating pipe 3 and the C-axis rotating arm 2, so there is no impact on the rotation accuracy of the C-axis. And because the C-axis rotating arm 2 is not disassembled, the speed of replacing the sealing parts is faster, more convenient, and has less impact on the normal production of the enterprise.

[0030] By setting a sand ring structure including a mounting shell 7, a rotating pipe 3, a connector 5, sand delivery holes 14, a first sealing ring 10 and a second sealing ring 11, the sealing parts of the sand ring structure are arranged on the top of the housing 1 instead of on the C-axis rotating arm 2. When the sealing parts are damaged, there is no need to disassemble the C-axis rotating arm, the speed of replacing the sealing parts is faster, more convenient, and has less impact on normal production activities.

[0031] Embodiment 2:

[0032] As Figure 1As shown in the figure, an A-axis rotating arm 18 is installed on a C-axis rotating arm 2. The A-axis rotating arm 18 is connected to a water knife head 16. The A-axis rotating arm 18 is also driven by a motor. A second rotating connection seat 17 is installed at one end of the A-axis rotating arm 18. One end of a first water pipe 4 is connected to the second rotating connection seat 17. A second water pipe 19 is installed at the center of the A-axis rotating arm 18. One end of the second water pipe 19 is connected to the second rotating connection seat 17, and the other end is connected to the water knife head 16. During use, when the C-axis rotating arm 2 rotates, it drives the first water pipe 4 to rotate. When the A-axis rotating arm 18 rotates, it drives the second water pipe 19 to rotate. There will be no interference between the first water pipe 4 and the second water pipe 19, and with other components, which is safer and more stable. The rotation angle of the A-axis rotating arm 18 is not limited. However, in the way of directly connecting the first water pipe 4 and the water knife head 16 with a hose, when the A-axis rotating arm 18 rotates, the hose will continuously twist and deform, and it is very easy to rub against the C-axis rotating arm 2. By reducing the rotation angle of the A-axis rotating arm 18, although the rubbing phenomenon can be eliminated, this method limits the rotation angle of the A-axis rotating arm 18.

[0033] By arranging the second water pipe 19 inside the A-axis rotating arm 18 and transferring the pipeline through the second rotating connection seat 17, the water supply pipeline of the water knife head 16 does not affect the rotation of the A-axis rotating arm 18, thereby realizing the arbitrary angle rotation of the A-axis rotating arm 18.

[0034] Embodiment 3:

[0035] As Figure 2 and Figure 4 shown in the figure, a tool head mounting seat 20 is installed on the A-axis rotating arm 18. The water knife head 16 is connected to the tool head mounting seat 20. A gemstone nozzle 21 is installed inside the tool head mounting seat 20. The gemstone nozzle 21 is communicated with the water knife head 16. One end of the second water pipe 19 is installed with a pipe joint 22. The pipe joint 22 is inserted into the tool head mounting seat 20. A nut 23 is sleeved and installed on the pipe joint 22. The nut 23 is threadedly connected to the tool head mounting seat 20, thereby fixing the pipe joint 22 inside the tool head mounting seat 20. When the gemstone nozzle 21 is damaged, unscrew the nut 23 and pull out the pipe joint 22, then the gemstone nozzle 21 can be conveniently taken out and replaced, making the use more convenient.

[0036] By arranging the tool head mounting seat 20 and using the nut 23 to fix the pipe joint 22 inside the tool head mounting seat 20, it is convenient to replace the gemstone nozzle 21 and the use is more convenient.

[0037] Embodiment 4:

[0038] As Figure 5As shown, a first mounting hole 12 and four second mounting holes 13 are provided on the external mounting shell 7. The sand inlet connector 8 is threadedly mounted in the first mounting hole 12. During use, bolts are passed through the second mounting holes 13 and threadedly connected to the outer shell 1, thereby fixing the external mounting shell 7 to the top of the outer shell 1.

[0039] By providing a first mounting hole 12 and four second mounting holes 13 on the external mounting shell 7, it is convenient to install the sand inlet connector 8 and to fix the external mounting shell 7 to the top of the outer shell 1.

[0040] Working principle: During use, the top end of the first water delivery pipe 4 is connected to a high-pressure water source through the first rotating connection seat 6. High-pressure water passes through the first rotating connection seat 6 and the first water delivery pipe 4 and finally enters the water knife head 16. Fine sand is input into the external mounting shell 7 through the sand inlet connector 8, and enters the water knife head 16 from the side through the sand delivery hole 14 and the connector 5. The first sealing ring 10 and the second sealing ring 11 are used for the sealing of the sand ring structure. Due to the long-term rotation of the rotating pipe 3, the wear and aging speed of the first sealing ring 10 and the second sealing ring 11 will be accelerated. Once the first sealing ring 10 and the second sealing ring 11 are damaged and fine sand leaks, first remove the first rotating connection seat 6, pull up the external mounting shell 7 and remove it from the rotating pipe 3, then remove the first sealing ring 10 and the second sealing ring 11 and replace them. There is no need to disassemble the rotating pipe 3 and the C-axis rotating arm 2, so there is no impact on the rotation accuracy of the C-axis. And since the C-axis rotating arm 2 is not disassembled, the speed of replacing the sealing parts is faster, more convenient, and has less impact on the normal production of the enterprise.

Claims

1. A water jet sand ring structure convenient for maintenance, characterized in that, Comprising: A housing (1), a C-axis rotating arm (2) is installed at the bottom of the housing (1), a water knife head (16) is provided below the housing (1), and a sand ring structure is provided on the housing (1); The sand ring structure includes an external mounting shell (7) installed on the top of the housing (1), a rotating pipe (3) is installed in the housing (1), the rotating pipe (3) is connected to the C-axis rotating arm (2), the top end of the rotating pipe (3) penetrates through the external mounting shell (7), a first sealing ring (10) and a second sealing ring (11) are installed between the rotating pipe (3) and the housing (1), a sand conveying hole (14) is formed on the rotating pipe (3), a connecting head (5) is installed at the bottom end of the sand conveying hole (14), and a sand inlet connecting head (8) is installed on the external mounting shell (7).

2. The water jet sand ring structure according to claim 1, which is convenient for maintenance, is characterized in that There are two groups of the first sealing ring (10) and the second sealing ring (11).

3. The water jet sand ring structure according to claim 1, which is convenient for maintenance, is characterized in that A first water pipe (4) is installed in the rotating pipe (3).

4. The water jet sand ring structure according to claim 3, which is characterized in that An A-axis rotating arm (18) is installed on the C-axis rotating arm (2), a second rotating connection seat (17) is installed at one end of the A-axis rotating arm (18), the first water pipe (4) is connected to the second rotating connection seat (17), a second water pipe (19) is installed in the A-axis rotating arm (18), and the second water pipe (19) is connected to the second rotating connection seat (17).

5. The structure of the water jet sand ring convenient for maintenance according to claim 4, wherein, A tool head mounting seat (20) is installed on the A-axis rotating arm (18), the water knife head (16) is connected to the tool head mounting seat (20), a gemstone nozzle (21) is installed in the tool head mounting seat (20), the gemstone nozzle (21) is communicated with the water knife head (16), one end of the second water pipe (19) is installed with a pipe joint (22), the pipe joint (22) is inserted into the tool head mounting seat (20), and a nut (23) is sleeved and installed on the pipe joint (22), and the nut (23) is threadedly connected to the tool head mounting seat.

6. The water jet sand ring structure according to claim 1, which is convenient for maintenance, is characterized in that The external mounting shell (7) is provided with a first mounting hole (12) and a plurality of second mounting holes (13).

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