Valve rod machining numerical control milling machine with positioning structure

Abstract

The utility model discloses a valve rod machining numerical control milling machine with a positioning structure, and relates to the technical field of valve rod machining. The valve rod machining numerical control milling machine with the positioning structure comprises a numerical control milling machine body, a box body, a lifting structure and a fixed-length positioning structure, the box body is fixedly installed on the left side of the numerical control milling machine body, a vertical strip is arranged on the left side of the box body, one end of the vertical strip is fixedly connected with a transverse plate, a material table is arranged on the top of the transverse plate, a valve rod is placed on the material table, and a pressing block is arranged on the top of the material table; an electric push rod is fixedly installed at the bottom of the material table, the lifting structure is arranged on the box body and the vertical bars, and the fixed-length positioning structure is arranged on the material table. According to the valve rod machining numerical control milling machine with the positioning structure, valve rods can be conveniently blocked and positioned after being placed, the rightward moving distances of the valve rods are equal, the depth uniformity and quality of grooving are improved, the valve rod machining numerical control milling machine is suitable for valve rods of different lengths and different sizes, the application range of the milling machine is widened, and the practicability of the milling machine is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve stem processing, in particular to a valve stem processing numerically controlled milling machine with a positioning structure. Background Art

[0002] The valve stem is one of the important components in the valve, which is used to drive the valve core to move or rotate to achieve valve switching or regulation.

[0003] During the production and processing of some valve stems, it is necessary to use a CNC milling machine to groove their ends. However, some existing CNC milling machines for valve stem processing can only perform fixed-length grooves on valve stems of specific models. It is difficult to perform fixed-length grooves when replacing valve stems of different sizes and lengths, and many structures need to be replaced. Therefore, a valve stem processing CNC milling machine with a positioning structure is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a valve stem processing CNC milling machine with a positioning structure, which can solve the problem that only fixed-length grooves can be performed on valve stems of specific models, while it is difficult to perform fixed-length grooves when replacing valve stems of different sizes and lengths, and many structures need to be replaced.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a valve stem processing CNC milling machine with a positioning structure, comprising a CNC milling machine, a box body, a lifting structure and a fixed-length positioning structure. The box body is fixedly installed on the left side of the CNC milling machine, a vertical bar is arranged on the left side of the box body, one end of the vertical bar is fixedly connected to a horizontal plate, a material table is arranged on the top of the horizontal plate, a valve stem is placed on the material table, a pressure block is arranged on the top of the material table, an electric push rod is fixedly installed on the bottom of the material table, the lifting structure is arranged on the box body and the vertical bar, the lifting structure is used to adjust the up and down movement of the horizontal plate, the fixed-length positioning structure is arranged on the material table, and the fixed-length positioning structure is used to position the valve stem.

[0006] Preferably, a U-shaped plate is fixedly installed on the front and rear sides of the material table, a hydraulic rod is fixedly installed on the top of the U-shaped plate, the free end of the hydraulic rod passes through the U-shaped plate and is fixedly connected to the pressing block, and a rubber pad is fixedly installed on the bottom of the pressing block to provide a buffering effect when it is pressed.

[0007] Preferably, a silicone pad is fixedly installed on the inner wall of the material table to prevent the valve stem from being damaged.

[0008] Preferably, a slide is fixedly installed at the bottom of the material table, a convex groove is opened on the horizontal plate, the slide is slidably installed in the convex groove, a linkage block is fixedly installed at the bottom of the slide, and the free end of the electric push rod is fixedly connected to the linkage block.

[0009] Preferably, a reinforcement rod is fixedly installed between the left side of the vertical bar and the bottom of the horizontal plate, thereby improving the stability between the vertical bar and the horizontal plate.

[0010] Preferably, the lifting structure includes a knob and a threaded rod, the threaded rod is rotatably installed inside the box body, a slide plate is slidably installed inside the box body and its threaded sleeve is arranged on the outer wall of the threaded rod, one end of the knob passes through the box body and is fixedly connected to the threaded rod.

[0011] Preferably, the fixed-length positioning structure includes a positioning block, a guide rail, a sliding sleeve and a bolt. The guide rails are divided into two groups and are fixed on the top of the material table in a front-to-back distributed state. The sliding sleeves are divided into two groups and are respectively fixedly installed on the front and rear sides of the positioning block. The sliding sleeves are slidably mounted on the guide rails. The bolts are threadedly installed on the guide rails, and one end of the bolts is in contact with the guide rails.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The valve stem processing CNC milling machine with a positioning structure, through the coordinated use of knobs, threaded rods, material tables, valve stems, positioning blocks, guide rails, sleeves, bolts, U-shaped plates, hydraulic rods, pressure blocks, slides, linkage blocks and electric push rods, can, on the one hand, compress the valve stem and drive it to move right for automatic grooving, and is also convenient for blocking and positioning the valve stem after it is placed, so that the distance the valve stem moves to the right is the same, thereby improving the depth uniformity and quality of the grooving. On the other hand, the positioning block is convenient for left and right adjustment, and is also convenient for adjusting the up and down movement of the material table, so that it is suitable for valve stems of different lengths and sizes, thereby enhancing the scope of application and practicality of the milling machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a left-side structural schematic diagram of the box body of the utility model;

[0017] Figure 3 It is an enlarged view of part A of the utility model;

[0018] Figure 4 It is the right side view of the horizontal plate of the utility model.

[0019] Figure numerals: 1. CNC milling machine; 2. Box body; 3. Slide plate; 4. Vertical bar; 5. Horizontal plate; 6. Lifting structure; 61. Knob; 62. Threaded rod; 7. Material table; 8. Valve stem; 9. Fixed-length positioning structure; 91. Positioning block; 92. Guide rail; 93. Sleeve; 94. Bolt; 10. U-shaped plate; 11. Hydraulic rod; 12. Pressure block; 13. Slide seat; 14. Linkage block; 15. Electric push rod; 16. Reinforcement rod. DETAILED DESCRIPTION

[0020] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0021] See also Figure 1-4 The utility model provides a technical solution: a valve stem processing CNC milling machine with a positioning structure, comprising a CNC milling machine 1, a box body 2, a lifting structure 6 and a fixed-length positioning structure 9. The box body 2 is fixedly installed on the left side of the CNC milling machine 1. A vertical bar 4 is arranged on the left side of the box body 2. A horizontal plate 5 is fixedly connected to one end of the vertical bar 4. A material table 7 is arranged on the top of the horizontal plate 5. A valve stem 8 is placed on the material table 7. A pressure block 12 is arranged on the top of the material table 7. An electric push rod 15 is fixedly installed on the bottom of the material table 7. The lifting structure 6 is arranged on the box body 2 and the vertical bar 4. The lifting structure 6 is used to adjust the up and down movement of the horizontal plate 5. The fixed-length positioning structure 9 is arranged on the material table 7. The fixed-length positioning structure 9 is used to position the valve stem 8.

[0022] A U-shaped plate 10 is fixedly installed on the front and rear sides of the material table 7, a hydraulic rod 11 is fixedly installed on the top of the U-shaped plate 10, the free end of the hydraulic rod 11 passes through the U-shaped plate 10 and is fixedly connected to a pressure block 12, a rubber pad is fixedly installed on the bottom of the pressure block 12, a silicone pad is fixedly installed on the inner wall of the material table 7, a slide seat 13 is fixedly installed on the bottom of the material table 7, a convex groove is opened on the cross plate 5, the slide seat 13 is slidably installed in the convex groove, a linkage block 14 is fixedly installed on the bottom of the slide seat 13, the free end of the electric push rod 15 is fixedly connected to the linkage block 14, and a reinforcement rod 16 is fixedly installed between the left side of the vertical bar 4 and the bottom of the cross plate 5.

[0023] The lifting structure 6 includes a knob 61 and a threaded rod 62. The threaded rod 62 is rotatably installed inside the box body 2. The slide plate 3 is slidably installed inside the box body 2 and its threaded sleeve is arranged on the outer wall of the threaded rod 62. One end of the knob 61 passes through the box body 2 and is fixedly connected to the threaded rod 62. The fixed-length positioning structure 9 includes a positioning block 91, a guide rail 92, a sliding sleeve 93 and a bolt 94. The guide rail 92 is divided into two groups and is fixed on the top of the material platform 7 in a front-to-back distribution state. The sliding sleeve 93 is divided into two groups and is fixedly installed on the front and rear sides of the positioning block 91 respectively. The sliding sleeve 93 is slidably sleeved on the guide rail 92. The bolt 94 is threadedly installed on the guide rail 92. One end of the bolt 94 contacts the guide rail 92, and the valve stem 8 is placed in the material platform 7. Then the hydraulic rod 11 is controlled to drive the pressure block 12 to move downward and press the valve stem 8, and then the electric push rod 15 is controlled to drive the material platform 7 to When the positioning block 91 needs to be adjusted to move left or right, the bolt 94 is turned counterclockwise with a hand-held wrench to move it away from the guide rail 92, and then the positioning block 91 is moved and the bolt 94 is retightened. When adjusting the height of the material table 7, the knob 61 is held to rotate the threaded rod 62, and then the slide plate 3 and the cross plate 5 can be driven to move. On the one hand, the valve stem 8 can be pressed and driven to move to the right for automatic grooving, and it is also convenient to block and position the valve stem 8 after it is placed, so that the distance the valve stem 8 moves to the right is the same, thereby improving the depth uniformity and quality of the grooving. On the other hand, the positioning block 91 is convenient for left and right adjustment, and it is also convenient to adjust the material table 7 up and down, so that it is suitable for valve stems 8 of different lengths and sizes, thereby enhancing the scope of application and practicality of the milling machine.

[0024] Working principle: place the valve stem 8 in the material table 7, then control the hydraulic rod 11 to drive the pressure block 12 to move downward and press the valve stem 8, then control the electric push rod 15 to drive the material table 7 to move to the left, and at the same time control the CNC milling machine 1 to groove the valve stem 8. When it is necessary to adjust the positioning block 91 to move left and right, use a wrench to turn the bolt 94 counterclockwise and away from the guide rail 92, then move the positioning block 91 and retighten the bolt 94. When adjusting the height of the material table 7, use the knob 61 to turn the threaded rod 62, and then the slide plate 3 and the cross plate 5 can be driven to move.

[0025] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A CNC milling machine for machining valve stems with a positioning structure, characterized in that: include: CNC milling machine (1); A box body (2) is fixedly installed on the left side of the CNC milling machine (1), a vertical bar (4) is arranged on the left side of the box body (2), one end of the vertical bar (4) is fixedly connected to a horizontal plate (5), a material platform (7) is arranged on the top of the horizontal plate (5), a valve stem (8) is placed on the material platform (7), a pressure block (12) is arranged on the top of the material platform (7), and an electric push rod (15) is fixedly installed on the bottom of the material platform (7); A lifting structure (6) is arranged on the box body (2) and the vertical bar (4), and the lifting structure (6) is used to adjust the horizontal plate (5) to move up and down; A fixed-length positioning structure (9) is arranged on the material platform (7), and the fixed-length positioning structure (9) is used to position the valve stem (8).

2. A valve stem machining CNC milling machine with a positioning structure according to claim 1, characterized in that: A U-shaped plate (10) is fixedly installed on the front and rear sides of the material platform (7), a hydraulic rod (11) is fixedly installed on the top of the U-shaped plate (10), a free end of the hydraulic rod (11) passes through the U-shaped plate (10) and is fixedly connected to a pressing block (12), and a rubber pad is fixedly installed on the bottom of the pressing block (12).

3. The valve stem machining CNC milling machine with a positioning structure according to claim 1, characterized in that: A silica gel pad is fixedly mounted on the inner wall of the material platform (7).

4. A valve stem machining CNC milling machine with a positioning structure according to claim 3, characterized in that: A slide seat (13) is fixedly installed at the bottom of the material table (7), a convex groove is opened on the cross plate (5), the slide seat (13) is slidably installed in the convex groove, a linkage block (14) is fixedly installed at the bottom of the slide seat (13), and the free end of the electric push rod (15) is fixedly connected to the linkage block (14).

5. The valve stem machining CNC milling machine with a positioning structure according to claim 1, characterized in that: A reinforcement rod (16) is fixedly installed between the left side of the vertical bar (4) and the bottom of the horizontal plate (5).

6. The valve stem machining CNC milling machine with a positioning structure according to claim 1, characterized in that: The lifting structure (6) comprises a knob (61) and a threaded rod (62); the threaded rod (62) is rotatably mounted inside the box body (2); a slide plate (3) is slidably mounted inside the box body (2) and is threadably sleeved on the outer wall of the threaded rod (62); one end of the knob (61) passes through the box body (2) and is fixedly connected to the threaded rod (62).

7. The valve stem machining CNC milling machine with a positioning structure according to claim 1, characterized in that: The fixed-length positioning structure (9) comprises a positioning block (91), a guide rail (92), a sliding sleeve (93) and a bolt (94); the guide rail (92) is in two groups and is fixed on the top of the material platform (7) in a front-to-back distributed state; the sliding sleeve (93) is in two groups and is respectively fixedly mounted on the front and rear sides of the positioning block (91); the sliding sleeve (93) is slidably mounted on the guide rail (92); the bolt (94) is threadedly mounted on the guide rail (92); and one end of the bolt (94) is in contact with the guide rail (92).

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