Valve rod drilling machine with positioning assembly

Abstract

The valve rod drilling machine with the positioning assembly comprises a rack and a rotating disc, the rotating disc is rotationally installed on the rack, a drilling mechanism used for drilling a valve rod is arranged on one side of the rack, a plurality of bases are arranged on the rotating disc, and containing grooves used for containing the valve rod are formed in the bases; side edge pressing pieces and end abutting pieces are arranged at the positions, located on the base, of the rotary disc, the side edge pressing pieces are used for abutting against the peripheral wall of the valve rod, and the end abutting pieces are located at the two ends of the valve rod and abut against the valve rod; the valve rod is placed in the containing groove of the base, the side edge pressing piece abuts against the valve rod in the circumferential wall direction of the valve rod, the end abutting piece limits the valve rod from the two axial ends of the valve rod, and the valve rod drilling device has the advantages that the probability that the valve rod is vibrated to generate axial displacement during drilling machining is reduced, and the product machining qualification rate is increased.

Description

Technical Field

[0001] This application relates to the field of valve stem drilling equipment, and more particularly to a valve stem drilling machine with a positioning component. Background Technology

[0002] The valve stem is the core transmission component of a valve and is widely used in petrochemical, water conservancy and hydropower, industrial pipelines, municipal engineering and other fields. The drilling process is an important part of valve stem processing. It is necessary to machine precise mounting holes, flow holes or positioning holes at designated positions on the valve stem for assembling valve cores, actuator connecting parts and other components.

[0003] In the existing technology, the drilling process usually involves using a special fixture to clamp the valve stem peripheral wall, clamping the valve stem workpiece on a turntable, controlling the turntable to rotate the valve stem to a preset drilling position, aligning the drill rod with the hole to be processed on the valve stem, starting the drilling equipment to complete the hole processing, and after processing, releasing the fixture to remove the processed valve stem before clamping and processing the next workpiece.

[0004] When the drill rod contacts the valve stem, a continuous cutting force is generated, causing the valve stem to vibrate. The valve stem is prone to axial displacement, which leads to borehole displacement and affects the product processing qualification rate and production efficiency. Summary of the Invention

[0005] To address the issue of axial displacement due to vibration during valve stem machining, which can negatively impact product yield, this application provides a valve stem drilling machine with a positioning component.

[0006] The valve stem drilling machine with a positioning component provided in this application adopts the following technical solution: A valve stem drilling machine with a positioning component includes a frame and a turntable. The turntable is rotatably mounted on the frame. A drilling mechanism for drilling valve stems is provided on one side of the frame. A plurality of bases are provided on the turntable, and the bases are evenly distributed along the circumference of the turntable. Each base has a placement groove for placing the valve stem. The turntable is provided with side clamping members and end clamping members at the bases. The side clamping members are used to clamp the circumferential wall of the valve stem, and the end clamping members are located at both ends of the valve stem and abut against the valve stem.

[0007] By adopting the above technical solution, the valve stem is placed in the placement slot of the base, the side clamping parts abut against the valve stem from the circumferential wall direction, and the end clamping parts limit the valve stem from both ends of the axial direction, reducing the probability of the valve stem being vibrated and causing axial displacement during drilling, and improving the product processing qualification rate.

[0008] Optionally, the side clamping component includes a rotating frame and an abutment block. The rotating frame is rotatably mounted on the base. Two rotating frames are provided and distributed opposite each other on both sides of the valve stem. The abutment block is provided at one end of the rotating frame, and one side of the abutment block abuts against the peripheral wall of the valve stem. The turntable is provided with a lifting mechanism for driving the rotating frame to rotate.

[0009] By adopting the above technical solution, the lifting mechanism drives the rotating frame to rotate, and the rotating frames on both sides drive the abutment blocks to clamp synchronously from both sides of the valve stem, thereby limiting the valve stem in a circumferential direction and realizing the pressing and releasing of the abutment blocks, which is convenient to operate.

[0010] Optionally, the lifting mechanism includes a lifting cylinder and a lifting bracket. The lifting cylinder is mounted on the turntable, and the lifting bracket is mounted on one end of the piston rod of the lifting cylinder. A guide rod is mounted on the lifting bracket, and the guide rod is slidably connected to the turntable. The guide rod is rotatably connected to the end of the rotating frame away from the abutment block.

[0011] By adopting the above technical solution, the lifting cylinder drives the lifting bracket and guide rod to slide up and down, thereby driving the rotating frame to rotate, realizing the pressing and releasing of the abutment block on the valve stem, and the driving operation is convenient.

[0012] Optionally, the guide rod is provided with a guide post, and the rotating frame is provided with a guide groove. The guide groove is distributed along the length direction of the rotating frame, and the guide post is slidably connected to the rotating frame through the guide groove.

[0013] By adopting the above technical solution, when the guide rod pushes the rotating frame to rotate, the guide column slides along the guide groove of the rotating frame, the transmission is smooth and without jamming, and the clamping force is applied evenly to the abutment block.

[0014] Optionally, the end abutment includes a guide strip and an abutment plate. The guide strip is slidably mounted on the base, and the sliding direction of the guide strip is parallel to the length direction of the placement groove. The abutment plate is disposed at the end of the guide strip away from the base, and the abutment plate is perpendicular to the guide strip. The base is provided with an adjustment component for driving the guide strip to slide.

[0015] By adopting the above technical solution, the adjusting component drives the guide bar to slide along the length of the placement groove, adjusting the position of the abutment plate to meet the axial positioning requirements of valve stems of different lengths.

[0016] Optionally, the adjusting component includes an adjusting screw, which is rotatably mounted on the guide bar and distributed parallel to the guide bar, and the adjusting screw is threadedly connected to the base.

[0017] By adopting the above technical solution, the rotating adjusting screw drives the guide bar to slide, and the threaded transmission self-locks the guide bar and the abutment plate to stabilize their positions, ensuring the reliability of axial positioning.

[0018] Optionally, an arc-shaped groove is provided on one side of the abutment block, and one side of the arc-shaped groove of the abutment block abuts against the peripheral wall of the valve stem.

[0019] By adopting the above technical solution, the arc-shaped groove side of the abutment block fits against the valve stem circumferential wall, increasing the contact area, and the clamping force is evenly transmitted to the valve stem, reducing the probability of circumferential rotation.

[0020] Optionally, the abutment block is plugged into the rotating frame, and the rotating frame is provided with a locking bolt, with the abutment block threadedly connected to the locking bolt.

[0021] By adopting the above technical solution, the plug-in connection facilitates the quick replacement of abutment blocks with different arc groove specifications to adapt to valve stems of different diameters, thereby improving the versatility of the device.

[0022] Optionally, a receiving base block for abutting against the peripheral wall of the valve stem is provided on one side of the abutting plate, and a pressing block is provided on the abutting plate. The pressing block is located on opposite sides in the axial direction of the valve stem. The pressing block is slidably connected to the abutting plate, and a driving member is provided on the abutting plate for driving the pressing block to move in a direction toward or away from the valve stem.

[0023] By adopting the above technical solution, when the valve stem position is fixed, one side of the valve stem peripheral wall abuts against the receiving bottom block. The adjusting drive component drives the clamping block to move towards the valve stem until the clamping blocks on both sides press against the peripheral wall of the valve stem, further limiting the circumferential movement of the valve stem and reducing the probability of circumferential rotation. At the same time, it is suitable for limiting and fixing valve stems of different diameters.

[0024] Optionally, the driving component includes a driving screw and a driving block. The driving screw is rotatably mounted on one side of the abutment plate, and the driving screw and the placement groove are distributed parallel to each other in their length directions. The driving block is slidably mounted on one side of the abutment plate and is threadedly connected to the driving screw. A through groove is provided on the abutment plate. A slider is provided on one side of the pressing block. The slider is slidably connected to the abutment plate through the groove. A driving rod is rotatably mounted on the driving block, and the end of the driving rod opposite to the driving block is rotatably connected to the slider.

[0025] By adopting the above technical solution, rotating the drive screw drives the drive block to slide, the drive block pushes the drive rod to rotate, and then drives the slider to slide along the groove of the abutment plate. Adjusting the position of the slider adjusts the position of the clamping block, making the operation of driving and adjusting the clamping block convenient.

[0026] In summary, this application includes at least one of the following beneficial technical effects: The valve stem is placed in the placement slot of the base. The side clamping parts abut against the valve stem from the circumferential wall direction, and the end clamping parts limit the valve stem from both ends of the axial direction, reducing the probability of axial displacement caused by vibration during drilling and improving the product processing qualification rate. The lifting mechanism drives the rotating frame to rotate, and the rotating frames on both sides drive the abutment blocks to clamp synchronously from both sides of the valve stem, thereby limiting the valve stem in a circumferential direction and realizing the pressing and releasing of the abutment blocks, which is convenient to operate. The adjusting component drives the guide bar to slide along the length of the placement groove, adjusting the position of the abutment plate to adapt to the axial positioning requirements of valve stems of different lengths. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of this application.

[0028] Figure 2 This is a partial cross-sectional structural diagram of the side clamping component and the lifting mechanism of this application.

[0029] Figure 3 This is an enlarged partial cross-sectional structural diagram of part A of this application.

[0030] Figure 4 This is an exploded view of the end clamping member and the driving member of this application.

[0031] Those skilled in the art will understand that the elements in the accompanying drawings are shown for simplicity and clarity and are not necessarily drawn to scale. For example, the size and position of some elements in the drawings may be enlarged relative to other elements to aid in understanding the embodiments of the invention.

[0032] Reference numerals: 1. Frame; 2. Turntable; 21. Base; 211. Placement slot; 3. Drilling mechanism; 4. Side clamping component; 41. Rotating frame; 411. Guide groove; 412. Locking bolt; 42. Abutment block; 421. Arc groove; 5. End abutment component; 51. Guide strip; 52. Abutment plate; 521. Slide groove; 522. Guide frame; 53. Adjusting screw; 6. Lifting mechanism; 61. Lifting cylinder; 62. Lifting bracket; 621. Guide rod; 6211. Guide column; 7. Supporting base block; 8. Clamping block; 81. Sliding block; 9. Driving component; 91. Driving screw; 92. Driving block; 93. Driving rod. Detailed Implementation

[0033] The present application will be further described in detail below with reference to the accompanying drawings.

[0034] This application discloses a valve stem drilling machine with a positioning component, referring to... Figure 1 and Figure 2The system includes a frame 1, a turntable 2, a drilling mechanism 3, a base 21, side clamping members 4, and end clamping members 5. The turntable 2 is horizontally mounted on the frame 1. A drilling mechanism 3 for drilling valve stems is located on one side of the frame 1. The base 21 has six evenly spaced grooves 211 on its upward-facing side, spaced circumferentially along the turntable 2. Each groove is V-shaped and distributed radially along the turntable 2. The side clamping members 4 are located on the base 21 at opposite ends of the grooves 211, clamping the valve stem against the sides. The end clamping members 5 are located at both ends of the grooves 211, abutting the valve stem ends. This multi-directional clamping design limits the valve stem's position from both the circumferential and axial sides, reducing the probability of axial displacement and improving product yield.

[0035] Reference Figure 1 and Figure 2 The side clamping component 4 includes a rotating frame 41 and an abutment block 42. The rotating frame 41 is rotatably mounted on the base 21 via a pin. Two rotating frames 41 are provided and are distributed opposite each other on both sides of the valve stem. The abutment block 42 is provided at the end of the rotating frame 41 facing the placement groove 211. The side of the abutment block 42 away from the rotating frame 41 is provided with an arc-shaped groove 421. One side of the arc-shaped groove 421 of the abutment block 42 abuts against the peripheral wall of the valve stem. The abutment block 42 is inserted into the rotating frame 41. The rotating frame 41 is provided with a locking bolt 412. The abutment block 42 is threadedly connected to the locking bolt 412, which facilitates quick replacement of abutment blocks 42 with different arc-shaped groove 421 specifications to adapt to valve stems of different diameters and improve the versatility of the device.

[0036] Reference Figure 1 and Figure 2 The turntable 2 is equipped with a lifting mechanism 6, which includes a lifting cylinder 61 and a lifting bracket 62. The lifting cylinder 61 is vertically arranged on the lower side of the turntable 2, and the lifting bracket 62 is arranged at one end of the piston rod of the lifting cylinder 61. A vertical guide rod 621 is arranged on the lifting bracket 62. The guide rod 621 is slidably connected to the turntable 2 in the vertical direction. The guide rod 621 is rotatably connected to the end of the rotating frame 41 away from the abutment block 42. When the lifting cylinder 61 drives the lifting bracket 62 and the guide rod 621 to slide up and down, the guide rod 621 drives the rotating frame 41 to rotate through the rotational connection with the rotating frame 41, thereby realizing the pressing and releasing of the valve rod by the abutment block 42.

[0037] Reference Figure 2 and Figure 3The guide rod 621 is provided with a guide post 6211, and the rotating frame 41 is provided with a guide groove 411. The guide groove 411 is distributed along the length of the rotating frame 41, and the guide post 6211 is slidably connected to the rotating frame 41 through the guide groove 411. When the guide rod 621 pushes the rotating frame 41 to rotate, the guide post 6211 slides along the guide groove 411 of the rotating frame 41 to ensure that the clamping force is applied evenly to the abutment block 42.

[0038] Reference Figure 2 and Figure 3 The end clamping component 5 includes a guide bar 51 and an abutment plate 52. The guide bar 51 is horizontally slidably mounted on the base 21, and its sliding direction is parallel to the length direction of the placement groove 211. The abutment plate 52 is vertically mounted at the end of the guide bar 51 away from the base 21, and is perpendicular to the guide bar 51. A clamping block is provided on the side of the abutment plate 52 facing the base 21, and the clamping block is locked onto the abutment plate 52 by bolts. The clamping blocks on both sides clamp the two ends of the valve stem along its length. An adjusting component is provided on the base 21, including an adjusting screw 53. The adjusting screw 53 is rotatably mounted on the lower side of the guide bar 51 and is parallel to the guide bar 51. The adjusting screw 53 is threadedly connected to the base 21. When the adjusting screw 53 is rotated, the guide bar 51 is driven to slide along the length direction of the placement groove 211, thereby adjusting the position of the abutment plate 52 to adapt to the axial positioning requirements of valve stems of different lengths.

[0039] Reference Figure 2 and Figure 4 The abutment plate 52 is provided with a receiving base block 7 and a pressing block 8 on the side facing the base 21. The receiving base block 7 is V-shaped and corresponds to the position of the placement groove 211. The pressing block 8 is located on the upper side of the receiving base block 7 and is also V-shaped. There are two pressing blocks 8, which are distributed opposite to each other along the axis of the valve stem. The abutment plate 52 is provided with a sliding groove 521 that penetrates the plate surface. The sliding groove 521 is distributed in the direction towards or away from the receiving base block 7. A slider 81 is provided on one side of the pressing block 8. The slider 81 is slidably connected to the abutment plate 52 through the sliding groove 521.

[0040] Reference Figure 2 and Figure 4A driving component 9 is provided on the abutment plate 52. The driving component 9 includes a driving screw 91 and a driving block 92. The driving screw 91 is rotatably mounted on the side of the abutment plate 52 away from the receiving base block 7. The driving screw 91 and the abutment plate 52 are distributed perpendicularly to each other. A guide frame 522 is provided on one side of the abutment plate 52, which is parallel to the driving screw 91. The driving block 92 is slidably mounted on the guide frame 522 and threadedly connected to the driving screw 91. A driving rod 93 is rotatably mounted on the driving block 92. The end of the driving rod 93 away from the driving block 92 is rotatably connected to the end of the slider 81 away from the pressing block 8. When the valve stem is placed on the base 21, the lower side of the circumferential wall at the end of the valve stem abuts against the receiving base block 7. Rotating the drive screw 91 drives the drive block 92 to slide. The drive block 92 pushes the drive rod 93 to rotate, which in turn drives the slider 81 to slide along the slide groove 521 of the abutment plate 52. This causes the clamping block 8 to move toward the valve stem until it abuts against the circumferential wall of the valve stem. The clamping blocks 8 on both sides abut against the circumferential wall of the valve stem, further limiting the circumferential movement of the valve stem and reducing the probability of circumferential rotation. At the same time, it is suitable for limiting and fixing valve stems of different diameters.

[0041] The implementation principle of a valve stem drilling machine with a positioning component in this application embodiment is as follows: The valve stem is placed in the placement groove 211 of the base 21, with the end of the valve stem located on the upper side of the receiving block 7. The adjusting screw 53 is rotated to drive the guide bar 51 to slide, adjusting the position of the abutment plate 52 to limit the valve stem from both ends in the axial direction. The driving screw 91 is rotated to drive the driving block 92, which in turn drives the slider 81 to slide, thereby driving the clamping block 8 to press against the peripheral wall of the valve stem end. The clamping blocks 8 on both sides and the receiving block 7 limit the valve stem from the circumferential direction. The lifting cylinder 61 drives the lifting bracket 62 to move, thereby pushing the guide rod 621 to slide. The guide rod 621 pushes the rotating frame 41 to rotate. The rotating frames 41 on both sides drive the abutment block 42 to press against the peripheral wall of the valve stem. Then the drilling mechanism 3 is started to drill the valve stem. When processing valve stems of different lengths, the position of the abutment plate 52 is adjusted by rotating the adjusting screw 53 to adapt the valve stem length. When processing valve stems of different radii, the locking bolt 412 is removed, the abutment block 42 is taken off, the abutment block 42 of the corresponding specification is replaced, and then the locking bolt 412 is used to lock it, adapting to the processing of valve stems of different radii.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A valve stem drilling machine with a positioning component, comprising a frame (1) and a turntable (2), the turntable (2) being rotatably mounted on the frame (1), and a drilling mechanism (3) for drilling valve stems being provided on one side of the frame (1), characterized in that: The turntable (2) is provided with a plurality of bases (21), which are evenly distributed along the circumference of the turntable (2). Each base (21) is provided with a placement groove (211) for placing a valve stem. The turntable (2) is provided with a side clamping member (4) and an end clamping member (5) at the base (21). The side clamping member (4) is used to clamp the circumferential wall of the valve stem, and the end clamping member (5) is located at both ends of the valve stem and abuts against the valve stem.

2. The valve stem drilling machine with a positioning component according to claim 1, characterized in that: The side clamping member (4) includes a rotating frame (41) and an abutment block (42). The rotating frame (41) is rotatably mounted on the base (21). There are two rotating frames (41) and they are distributed opposite each other on both sides of the valve stem. The abutment block (42) is located at one end of the rotating frame (41). One side of the abutment block (42) abuts against the peripheral wall of the valve stem. The turntable (2) is provided with a lifting mechanism (6) for driving the rotating frame (41) to rotate.

3. A valve stem drilling machine with a positioning component according to claim 2, characterized in that: The lifting mechanism (6) includes a lifting cylinder (61) and a lifting bracket (62). The lifting cylinder (61) is mounted on the turntable (2). The lifting bracket (62) is mounted on one end of the piston rod of the lifting cylinder (61). A guide rod (621) is mounted on the lifting bracket (62). The guide rod (621) is slidably connected to the turntable (2). The guide rod (621) is rotatably connected to the end of the rotating frame (41) away from the abutment block (42).

4. A valve stem drilling machine with a positioning component according to claim 3, characterized in that: The guide rod (621) is provided with a guide post (6211), and the rotating frame (41) is provided with a guide groove (411). The guide groove (411) is distributed along the length direction of the rotating frame (41), and the guide post (6211) is slidably connected to the rotating frame (41) through the guide groove (411).

5. A valve stem drilling machine with a positioning component according to claim 1, characterized in that: The end clamping member (5) includes a guide strip (51) and an abutment plate (52). The guide strip (51) is slidably mounted on the base (21). The sliding direction of the guide strip (51) is parallel to the length direction of the placement groove (211). The abutment plate (52) is disposed at one end of the guide strip (51) away from the base (21). The abutment plate (52) and the guide strip (51) are perpendicular to each other. The base (21) is provided with an adjusting member for driving the guide strip (51) to slide.

6. A valve stem drilling machine with a positioning component according to claim 5, characterized in that: The adjusting component includes an adjusting screw (53), which is rotatably mounted on the guide bar (51) and distributed parallel to the guide bar (51). The adjusting screw (53) is threadedly connected to the base (21).

7. A valve stem drilling machine with a positioning component according to claim 2, characterized in that: An arc-shaped groove (421) is provided on one side of the abutment block (42), and one side of the arc-shaped groove (421) of the abutment block (42) abuts against the peripheral wall of the valve stem.

8. A valve stem drilling machine with a positioning component according to claim 2, characterized in that: The abutment block (42) is plugged into the rotating frame (41), and the rotating frame (41) is provided with a locking bolt (412). The abutment block (42) is threadedly connected to the locking bolt (412).

9. A valve stem drilling machine with a positioning component according to claim 5, characterized in that: The abutment plate (52) has a receiving base block (7) on one side for abutting against the valve stem peripheral wall. The abutment plate (52) has a pressing block (8) on it. The pressing block (8) is located on opposite sides in the valve stem axis direction. The pressing block (8) is slidably connected to the abutment plate (52). The abutment plate (52) has a driving member (9) for driving the pressing block (8) to move in a direction toward or away from the valve stem.

10. A valve stem drilling machine with a positioning component according to claim 9, characterized in that: The driving component (9) includes a driving screw (91) and a driving block (92). The driving screw (91) is rotatably mounted on one side of the abutment plate (52). The driving screw (91) and the placement groove (211) are parallel to each other in their length direction. The driving block (92) is slidably mounted on one side of the abutment plate (52) and threadedly connected to the driving screw (91). A through groove (521) is provided on the abutment plate (52). A slider (81) is provided on one side of the pressing block (8). The slider (81) is slidably connected to the abutment plate (52) through the groove (521). A driving rod (93) is rotatably mounted on the driving block (92). The end of the driving rod (93) away from the driving block (92) is rotatably connected to the slider (81).

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