CNC valve finish machining equipment

Abstract

The utility model relates to the field of valve machining, and discloses CNC valve finish machining equipment which comprises a machine body, a control box is arranged on the side wall of the inner side of the machine body, a machining table is fixedly connected to the bottom end of the side wall of the inner side of the machine body, a fixing frame is fixedly connected to the outer wall of the bottom end of the control box, and a positioning sensor is arranged on the side wall of the outer side of the fixing frame. A motor is fixedly connected to the bottom end of the left side of the fixing frame, a tool changing mechanism is detachably mounted on the surface of the fixing frame through a quick release assembly, a connecting rod is elastically connected to the top end of the outer wall of a rotating block through a limiting spring, and a tool bit is fixedly connected to the bottom end of the outer wall of the connecting rod. According to the tool changing mechanism, through unique gear transmission and convenient tool bit replacement design, the tools can be rapidly and stably switched, the tool changing time is remarkably shortened, the production efficiency is improved, the requirements of valve diversified machining technologies are met, and the competitiveness of equipment in the field of valve manufacturing is improved.

Description

Technical Field

[0001] This utility model relates to the field of valve processing, and in particular to a CNC valve precision machining equipment. Background Technology

[0002] As a key component in various fluid control systems, valves directly affect the reliability and safety of the entire system through their sealing performance, dimensional accuracy, and surface quality. With the continuous development of industrial technology, the quality requirements for valves are increasing, and traditional processing methods are unable to meet the demands for high precision and high efficiency in production.

[0003] In the field of valve manufacturing, especially for the production of high-precision valves, CNC precision machining equipment plays a decisive role.

[0004] Currently, existing CNC valve precision machining equipment has some shortcomings: many machines require frequent tool changes when machining multiple positions of the valve. However, most tools are fixed with bolts during installation, resulting in slow tool change speeds, long downtime, and reduced production efficiency. Therefore, a CNC valve precision machining equipment is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a CNC valve precision machining equipment, which aims to improve the problem of frequent tool changes required in the prior art. However, most tools are fixed by bolts during installation, resulting in slow tool change speed and long downtime.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a CNC valve precision machining equipment, comprising a machine body, a control box provided on the inner side wall of the machine body, a machining table fixedly connected to the bottom end of the inner side wall of the machine body, a fixed frame fixedly connected to the outer wall of the bottom end of the control box, a positioning sensor provided on the outer side wall of the fixed frame, a gear rotatably connected to the left side of the top of the fixed frame, a motor fixedly connected to the bottom end of the left side of the fixed frame, and a tool changing mechanism detachably mounted on the surface of the fixed frame via a quick-release assembly;

[0007] The tool changing mechanism includes a fixed rod, with multiple sets of toothed blocks fixedly connected to the outer wall of the fixed rod. A screw is threaded through and connected to the inner wall of the top of the fixed rod. A positioning block is fixedly connected to the bottom of the outer wall of the screw. A rotating block is rotatably connected through and connected to the surface of the fixed rod. A connecting rod is elastically connected to the top of the outer wall of the rotating block via a limiting spring. A tool head is fixedly connected to the bottom of the outer wall of the connecting rod.

[0008] As a further description of the above technical solution:

[0009] The quick-release assembly includes a positioning rod, which is elastically connected to the inner wall of the bottom of the control box by a return spring. A guide rod is slidably connected through the inner wall of the positioning rod.

[0010] As a further description of the above technical solution:

[0011] The output shaft of the motor is fixedly connected to the gear, and a slot is provided on the right side surface of the fixing frame. The outer wall of the fixing rod is in contact with the inner wall of the slot of the fixing frame.

[0012] As a further description of the above technical solution:

[0013] The toothed block meshes with the gear, and a positioning groove is provided at the top of the outer wall of the connecting rod. The bottom end of the outer wall of the positioning block is inserted into the inner wall of the positioning groove.

[0014] As a further description of the above technical solution:

[0015] The connecting rod passes through and is slidably connected to the inner wall of the rotating block, and the connecting rod passes through and is slidably connected to the inner wall of the fixed rod.

[0016] As a further description of the above technical solution:

[0017] One end of the limiting spring is fixedly connected to the side wall at the top of the connecting rod, and the other end of the limiting spring is fixedly connected to the top of the outer wall of the rotating block.

[0018] As a further description of the above technical solution:

[0019] One end of the reset spring is fixedly connected to the side wall at the rear end of the positioning rod, and the other end of the reset spring is fixedly connected to the inner wall at the bottom of the control box.

[0020] As a further description of the above technical solution:

[0021] The positioning rod is slidably connected to the inner wall of the bottom end of the control box, the guide rod is fixedly connected to the inner wall of the bottom end of the control box, and the bottom end of the outer wall of the positioning rod is in contact with the top end of the outer wall of the fixed rod.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the tool changing mechanism, through its unique gear transmission and convenient tool head replacement design, can quickly and stably switch tools, significantly shortening tool changing time, improving production efficiency, meeting the needs of diverse valve processing technologies, and enhancing the equipment's competitiveness in the valve manufacturing field.

[0024] 2. In this utility model, the quick-release component simplifies the disassembly and installation of the tool changing mechanism, eliminating the need for complex tools and cumbersome procedures, thus reducing the difficulty and cost of equipment maintenance. When equipment malfunctions or requires replacement of parts, timely repair and replacement can be carried out, minimizing downtime. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a CNC valve precision machining equipment proposed in this utility model;

[0026] Figure 2 This is a three-dimensional structural diagram of the control box and tool changing mechanism of a CNC valve precision machining equipment proposed in this utility model;

[0027] Figure 3 This is a partial cross-sectional view of the control box of a CNC valve precision machining equipment proposed in this utility model;

[0028] Figure 4 This is a partial cross-sectional view of the fixing rod of a CNC valve precision machining equipment proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the structure of a CNC valve precision machining equipment in the separated state of the rotating block and connecting rod.

[0030] Figure 6 This utility model proposes a CNC valve precision machining equipment. Figure 3 Enlarged structural diagram of section A.

[0031] Legend:

[0032] 1. Machine body; 2. Machining table; 3. Control box; 4. Fixing frame; 5. Positioning sensor; 6. Gear; 7. Tool changing mechanism; 71. Fixing rod; 72. Rotary block; 73. Gear block; 74. Screw; 75. Positioning block; 76. Limit spring; 77. Connecting rod; 78. Tool head; 8. Quick release assembly; 81. Positioning rod; 82. Return spring; 83. Guide rod; 9. Motor. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figure 1 - Figure 3This utility model provides an embodiment of a CNC valve precision machining equipment, including a body 1. A control box 3 is provided on the inner side wall of the body 1. The control box 3 is existing technology. The body 1 has XYZ axes inside, which can control the control box 3 to drive the tool changing mechanism 7 to move and process the valve. It also works with positioning sensors 5 to perform precise positioning, so that the tool changing mechanism 7 can always be aligned with the valve processing position. A processing table 2 is fixedly connected to the bottom end of the inner side wall of the body 1. The processing table 2 is existing technology. By installing fixtures on its surface, the valve can be fixed on the surface of the processing table 2 to facilitate the tool changing mechanism 7 to process it. A fixing frame 4 is fixedly connected to the outer wall of the bottom end of the control box 3. A positioning sensor 5 is provided on the outer side wall of the fixing frame 4. A gear 6 is rotatably connected to the left side of the top of the fixing frame 4. A motor 9 is fixedly connected to the bottom left side of the fixing frame 4. The output shaft of the motor 9 is fixedly connected to the gear 6. The tool changing mechanism 7 is detachably installed on the surface of the fixing frame 4 through a quick-release assembly 8.

[0035] Reference Figure 3 - Figure 5 The tool changing mechanism 7 includes a fixed rod 71. A slot is formed on the right side surface of the fixed frame 4. The outer wall of the fixed rod 71 contacts the inner wall of the slot in the fixed frame 4. This contact allows the fixed rod 71 to be positioned on the inner side wall of the fixed frame 4. The protrusions of the toothed blocks 73 support the fixed rod 71 at its maximum downward position within the slot. Multiple sets of toothed blocks 73 are fixedly connected to the outer wall of the fixed rod 71. These toothed blocks 73 mesh with the gear 6. This meshing allows the gear 6, driven by the motor 9, to rotate, causing the toothed blocks 73 to rotate, thus synchronously rotating the fixed rod 71 and allowing the tool head 78 to... The valve is processed, and the tooth spacing of the tooth block 73 and the gear 6 is the same. The top of the outer wall of the connecting rod 77 is provided with a positioning groove. The bottom of the outer wall of the positioning block 75 is inserted into the inner wall of the positioning groove. The insertion between the two allows the connecting rod 77 located at the center of the fixed rod 71 to be lowered by rotating the screw 74. This allows the cutting head 78 to be quickly changed according to different processing positions. The inner wall of the top of the fixed rod 71 is threaded through and connected to the screw 74. The top of the fixed rod 71 is provided with an internal thread, so that the screw 74 will descend threadedly on the inner wall of the top of the fixed rod 71 when rotating. The bottom of the outer wall of the screw 74 is fixedly connected to the positioning block 75.

[0036] Reference Figure 4 and Figure 5A rotating block 72 is rotatably connected to the surface of the fixed rod 71. Rotation of the rotating block 72 allows the positions of the three sliding connecting rods 77 and the cutter head 78 inside to be interchanged, enabling the cutter head 78 to be replaced according to different usage environments. A connecting rod 77 is elastically connected to the top of the outer wall of the rotating block 72 via a limiting spring 76. One end of the limiting spring 76 is fixedly connected to the side wall at the top of the connecting rod 77, and the other end is fixedly connected to the top of the outer wall of the rotating block 72. The function of the limiting spring 76 is to prevent the connecting rod 77 from descending when pushed by the positioning block 75. The position is then automatically reset. The connecting rod 77 passes through and slides on the inner wall of the rotating block 72. The inner side of the rotating block 72 has a protrusion that fits the outer guide groove of the connecting rod 77, so that the connecting rod 77 can only move up and down in a straight line on the inner wall of the rotating block 72. The connecting rod 77 passes through and slides on the inner wall of the fixed rod 71. The connecting rod 77 passes through the fixed rod 71, so that the corresponding cutting head 78 can be replaced according to the processing of different positions of the valve. When not in use, the whole unit is stored inside the fixed rod 71. The cutting head 78 is fixedly connected to the bottom of the outer wall of the connecting rod 77.

[0037] Reference Figure 3 and Figure 6 The quick-release assembly 8 includes a positioning rod 81, which is slidably connected to the inner wall of the bottom end of the control box 3. A guide rod 83 is fixedly connected to the inner wall of the bottom end of the control box 3. The bottom end of the outer wall of the positioning rod 81 contacts the top end of the outer wall of the fixing rod 71. The contact between the two allows the fixing rod 71 to be fixed in place on the inner wall of the fixing frame 4, thus preventing the tooth block 73 from disengaging from the gear 6 during use. It also facilitates the disassembly and replacement of the tool changing mechanism 7. The positioning rod 81 is elastically connected to the control box by a return spring 82. The inner wall at the bottom of the control box 3 has one end of the return spring 82 fixedly connected to the side wall at the rear end of the positioning rod 81, and the other end of the return spring 82 fixedly connected to the inner wall at the bottom of the control box 3. The function of the return spring 82 is to push the positioning rod 81 to disengage from the contact and fixation of the fixed rod 71, and then automatically reset the position of the positioning rod 81 after it has moved. The inner wall of the positioning rod 81 is slidably connected to the guide rod 83. The inner wall of the positioning rod 81 is provided with a guide groove that fits the guide rod 83, so that the positioning rod 81 can only move back and forth on the surface of the guide rod 83.

[0038] Working principle: When the valve needs to be processed, the motor 9 starts, and the output shaft of the motor 9 drives the gear 6 to rotate. Since the gear 6 meshes with the tooth block 73 on the outer wall of the fixed rod 71, and the tooth spacing between the tooth block 73 and the gear 6 is the same, the rotation of the gear 6 will drive the tooth block 73 to move, thereby causing the fixed rod 71 to rotate synchronously. The rotation of the fixed rod 71 will drive the rotating block 72, the connecting rod 77 and the cutting head 78 on its surface to rotate together, so that the cutting head 78 can perform processing operation on the valve at a suitable angle. By controlling the rotation direction of the motor 9, the processing position of the cutting head 78 can be precisely adjusted.

[0039] During the processing, if it is necessary to switch the cutter head 78 for different processes, first rotate the rotating block 72. The protrusion on the inner side of the rotating block 72 engages with the guide groove on the outer side of the connecting rod 77, so that the connecting rod 77 can only move linearly up and down on the inner wall of the rotating block 72. Rotating the rotating block 72 can adjust the connecting rod 77 corresponding to the required cutter head 78 to the center position of the fixed rod 71. Then rotate the screw 74. The screw 74 descends along the thread on the inner wall of the top of the fixed rod 71, driving the positioning block 75 to descend. During the descent, the positioning block 75 inserts into the corresponding... The connecting rod 77 is positioned in the locating groove at the top and is pushed downwards against the elastic force of the limiting spring 76, causing the cutter head 78 to extend out of the fixing rod 71 for processing. When the processing is completed and the cutter head 78 needs to be replaced, the screw 74 is rotated in the opposite direction, the locating block 75 rises and disengages from the locating groove, the connecting rod 77 is reset under the action of the limiting spring 76, and the cutter head 78 retracts back into the fixing rod 71. Then, the rotating block 72 is rotated to switch to the connecting rod 77 corresponding to the next cutter head 78. The above steps are repeated to complete the switching of the cutter head 78.

[0040] When installing the tool changing mechanism 7, place the fixing rod 71 in the slot on the inner side wall of the fixing frame 4. At this time, under the action of the return spring 82, the bottom end of the outer wall of the positioning rod 81 is in close contact with the top end of the outer wall of the fixing rod 71, fixing the fixing rod 71 in the position of the inner wall of the fixing frame 4. This prevents the tooth block 73 from disengaging from the gear 6 during use and ensures the stable operation of the tool changing mechanism 7. When it is necessary to disassemble the tool changing mechanism 7, manually pull the positioning rod 81 backward. The positioning rod 81 overcomes the elastic force of the return spring 82 and moves backward on the guide rod 83, disengaging from the contact with the fixing rod 71. At this time, the fixing rod 71 can be removed from the slot of the fixing frame 4, completing the disassembly of the tool changing mechanism 7. After releasing the positioning rod 81, the positioning rod 81 returns to the initial position under the action of the return spring 82, ready for the next installation of the tool changing mechanism 7.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A CNC valve precision machining equipment, comprising a machine body (1), characterized in that: The inner side wall of the machine body (1) is provided with a control box (3), the bottom end of the inner side wall of the machine body (1) is fixedly connected with a processing table (2), the outer wall of the bottom end of the control box (3) is fixedly connected with a fixing frame (4), the outer side wall of the fixing frame (4) is provided with a positioning sensor (5), the left side of the top of the fixing frame (4) is rotatably connected with a gear (6), the bottom end of the left side of the fixing frame (4) is fixedly connected with a motor (9), and the surface of the fixing frame (4) is detachably installed with a tool changing mechanism (7) through a quick-release assembly (8). The tool changing mechanism (7) includes a fixed rod (71), with multiple sets of toothed blocks (73) fixedly connected to the outer wall of the fixed rod (71). A screw (74) is threaded through and threaded to the inner wall of the top of the fixed rod (71). A positioning block (75) is fixedly connected to the bottom of the outer wall of the screw (74). A rotating block (72) is rotatably connected through and to the surface of the fixed rod (71). A connecting rod (77) is elastically connected to the top of the outer wall of the rotating block (72) via a limiting spring (76). A tool head (78) is fixedly connected to the bottom of the outer wall of the connecting rod (77).

2. The CNC valve precision machining equipment according to claim 1, characterized in that: The quick-release assembly (8) includes a positioning rod (81), which is elastically connected to the inner wall of the bottom of the control box (3) by a return spring (82). A guide rod (83) is slidably connected through the inner wall of the positioning rod (81).

3. The CNC valve precision machining equipment according to claim 1, characterized in that: The output shaft of the motor (9) is fixedly connected to the gear (6), and a slot is provided on the right side surface of the fixing frame (4). The outer wall of the fixing rod (71) is in contact with the inner wall of the slot of the fixing frame (4).

4. The CNC valve precision machining equipment according to claim 1, characterized in that: The tooth block (73) meshes with the gear (6), and a positioning groove is provided at the top of the outer wall of the connecting rod (77). The bottom of the outer wall of the positioning block (75) is inserted into the inner wall of the positioning groove.

5. The CNC valve precision machining equipment according to claim 1, characterized in that: The connecting rod (77) passes through and is slidably connected to the inner wall of the rotating block (72), and the connecting rod (77) passes through and is slidably connected to the inner wall of the fixed rod (71).

6. The CNC valve precision machining equipment according to claim 1, characterized in that: One end of the limiting spring (76) is fixedly connected to the side wall at the top of the connecting rod (77), and the other end of the limiting spring (76) is fixedly connected to the top of the outer wall of the rotating block (72).

7. The CNC valve precision machining equipment according to claim 2, characterized in that: One end of the reset spring (82) is fixedly connected to the side wall at the rear end of the positioning rod (81), and the other end of the reset spring (82) is fixedly connected to the inner wall at the bottom of the control box (3).

8. The CNC valve precision machining equipment according to claim 2, characterized in that: The positioning rod (81) is slidably connected to the inner wall of the bottom of the control box (3), the guide rod (83) is fixedly connected to the inner wall of the bottom of the control box (3), and the bottom end of the outer wall of the positioning rod (81) is in contact with the top end of the outer wall of the fixing rod (71).

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