Valve stem hole chamfering device

Abstract

The utility model discloses a valve stem hole chamfering device, including work table, the top of work table is provided with respectively the fixed establishment of chamfering to valve stem, power mechanism and feeding mechanism, among them, the fixed establishment is fixed to valve stem, among them, power mechanism is chamfered to valve stem hole, among them, feeding mechanism is fed to valve stem, among them, the side of work table is installed with controller, and the controller is electrically connected with power mechanism, fixed establishment and feeding mechanism through wire respectively, through setting fixed establishment, power mechanism and feeding mechanism, make it mutually cooperate and use to can be accurate positioning chamfering operation to valve stem to can effectively guarantee the chamfering machining precision of valve stem hole, improve the stability of product quality.

Description

Technical Field

[0001] This utility model relates to the field of valve stem chamfering technology, and in particular to a valve stem hole chamfering device. Background Technology

[0002] In the valve manufacturing industry, the valve stem bore is a crucial mating part for the movement of the valve stem, and the quality of its chamfering directly affects the valve's opening and closing flexibility, sealing performance, and service life. Chamfering the valve stem bore not only eliminates burrs and sharp edges generated during bore machining and prevents stress concentration, but also acts as a guide during assembly, facilitating the smooth insertion of the valve stem into the bore. Simultaneously, it enhances the fit between the sealing element and the bore, improving the valve's sealing performance.

[0003] Existing patent document CN209503495U discloses an automatic drilling and chamfering integrated device, including a base, a mounting plate, telescopic rods, and a drilling and chamfering assembly. The device is characterized by: a mounting plate fixedly connected to the top of the base; a telescopic rod fixedly connected to the upper surface of the mounting plate; two sets of telescopic rods; a top plate fixedly connected to the top of each telescopic rod; a limiting assembly between the two sets of telescopic rods; two sets of limiting assemblies; the top plate positioned directly above the limiting assembly; the limiting assembly fixedly connected to the mounting plate; a through hole between the two sets of limiting assemblies; and the limiting assembly including a base plate and a connecting plate. The push plate and lead screw are fixedly connected to the upper surface of the mounting plate. The through hole is opened on the mounting plate. The upper surface of the top plate is fixedly connected to the motor. The bottom end of the motor is connected to the rotating shaft. The rotating shaft is located below the top plate. The end of the rotating shaft away from the motor is connected to the drilling and chamfering assembly. The drilling and chamfering assembly is located directly above the through hole. The drilling and chamfering assembly includes a mounting head, a connecting rod, a limiting plate, a chamfering head, and a drill bit. The top end of the mounting head is connected to the bottom end of the rotating shaft. The end of the mounting head away from the rotating shaft is equipped with the connecting rod. The base has a cavity. The bottom inner wall of the cavity is fixedly connected to a slide table and a fan. The cavity is connected to the through hole.

[0004] Although the aforementioned automatic drilling and chamfering integrated device can solve the corresponding technical problems, it lacks precise positioning and control methods when chamfering the valve stem, making it difficult to guarantee processing accuracy and thus affecting the stability of product quality.

[0005] To address this, a valve stem hole chamfering device is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a valve stem hole chamfering device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0008] A valve stem bore chamfering device, comprising:

[0009] The workbench is equipped with a fixing mechanism for chamfering the valve stem, a power mechanism, and a feeding mechanism on its top.

[0010] The fixing mechanism fixes the valve stem.

[0011] The power mechanism performs a bore chamfering on the valve stem;

[0012] The feeding mechanism feeds the valve stem.

[0013] A controller is installed on one side of the workbench, and the controller is electrically connected to the power mechanism, the fixing mechanism and the feeding mechanism through wires.

[0014] As a preferred technical solution, the fixing mechanism includes a U-shaped frame, which is fixedly installed on the top of the workbench. A first hydraulic cylinder, a second hydraulic cylinder, and a third hydraulic cylinder are respectively installed on the U-shaped frame. An abutment block is installed at the end of the telescopic rod of the first hydraulic cylinder, and the abutment block cooperates with a V-shaped seat below it. An adjusting base is installed at the end of the telescopic rod of the second hydraulic cylinder, and a roller is rotatably connected inside the adjusting base. A motor is installed at one end of the roller, and a roller base is correspondingly provided below the roller. The roller base and the V-shaped seat are installed on the workbench.

[0015] As a preferred technical solution, a positioning head is installed on one side of the U-shaped frame, the positioning head is screwed onto the U-shaped frame, and the positioning head and the oil cylinder are arranged in a three-way opposite arrangement.

[0016] As a preferred technical solution, the power mechanism includes a fixed base, which is symmetrically mounted on the workbench. A drive shaft with a chamfered head is installed in the middle of the fixed base, and the drive shaft with the chamfered head is connected to the rotating head of the reducer.

[0017] As a preferred technical solution, the feeding mechanism includes a bracket, which is fixedly installed on the top side of the workbench. A hydraulic cylinder is installed at one end of the bracket, and a connecting plate is installed at the end of the telescopic rod of the hydraulic cylinder. One end of the connecting plate is fixedly connected to a movable plate, and the movable plate slides on the bracket. Multiple valve rods are placed on the top of the bracket.

[0018] As a preferred technical solution, the workbench is equipped with adjustable feet at the four corners of its bottom.

[0019] This utility model has at least the following beneficial effects:

[0020] The beneficial effect of this utility model is that by setting up a fixing mechanism, a power mechanism and a feeding mechanism, and having them work together, the valve stem can be precisely positioned and chamfered, thereby effectively ensuring the chamfering accuracy of the valve stem hole and improving the stability of product quality. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of the valve stem hole chamfering device of this utility model;

[0022] Figure 2 This is a cross-sectional schematic diagram of the valve stem hole chamfering device of this utility model;

[0023] Figure 3 This is a schematic diagram of the valve stem hole chamfering device fixing mechanism of this utility model;

[0024] Figure 4 This is a schematic diagram of the feeding mechanism of the valve stem hole chamfering device of this utility model;

[0025] Figure 5 This is a cross-sectional schematic diagram of the feeding mechanism of the valve stem hole chamfering device of this utility model.

[0026] In the diagram: 1. Workbench; 101. Adjustable feet; 2. Controller; 3. Power mechanism; 302. Chamfered head; 303. Fixed base; 304. Reducer; 4. Fixing mechanism; 401. U-shaped frame; 402. Hydraulic cylinder one; 403. Hydraulic cylinder two; 404. Hydraulic cylinder three; 405. Positioning head; 406. Abutment block; 407. Adjustable base; 408. Roller; 409. Motor; 410. V-shaped seat; 411. Roller base; 5. Feeding mechanism; 501. Support; 502. Hydraulic cylinder four; 503. Connecting plate; 504. Movable plate; 6. Valve stem. Detailed Implementation

[0027] 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.

[0028] Please see Figures 1-5 An embodiment of this utility model provides a valve stem hole chamfering device, including: a workbench 1, and a fixing mechanism 4 for chamfering the valve stem 6, a power mechanism 3 and a feeding mechanism 5 respectively provided on the top of the workbench 1;

[0029] Among them, the fixing mechanism 4 fixes the valve stem 6;

[0030] Among them, the power mechanism 3 performs hole chamfering on the valve stem 6;

[0031] Among them, the feeding mechanism 5 feeds the valve stem 6;

[0032] Among them, a controller 2 is installed on one side of the workbench 1. The controller 2 is electrically connected to the power mechanism 3, the fixing mechanism 4 and the feeding mechanism 5 through wires.

[0033] The fixing mechanism 4 includes a U-shaped frame 401, which is fixedly installed on the top of the workbench 1. A hydraulic cylinder 402, a hydraulic cylinder 403, and a hydraulic cylinder 404 are respectively installed on the U-shaped frame 401. An abutment block 406 is installed at the end of the telescopic rod of the hydraulic cylinder 402. The abutment block 406 cooperates with the V-shaped seat 410 below it. An adjusting base 407 is installed at the end of the telescopic rod of the hydraulic cylinder 403. A roller 408 is rotatably connected inside the adjusting base 407. A motor 409 is installed at one end of the roller 408. A roller base 411 is correspondingly provided below the roller 408. The roller base 411 and the V-shaped seat 410 are installed on the workbench 1. By setting a fixing mechanism 4, and utilizing the extension rods of cylinders 402, 403, and 404 respectively mounted on the U-shaped frame 401, an adjusting base 407 is installed at the end of each extension rod. The motor 409 drives the adjusting base 407 to rotate, which in turn drives the valve rod 6 to rotate on the roller base 411, thereby adjusting the position of the hole in the valve rod 6. This facilitates the subsequent chamfering of the hole by the power mechanism 3. After the adjustment is completed, the extension rod end of cylinder 402 pushes the abutment block 406 to abut the valve rod 6 against the V-shaped seat 410, thereby fixing the position to be chamfered and ensuring stability during chamfering.

[0034] Among them, hydraulic cylinder 1 402, hydraulic cylinder 2 403, and hydraulic cylinder 3 404 are electrically connected to controller 2 to control their coordinated use.

[0035] A positioning head 405 is installed on one side of the U-shaped frame 401. The positioning head 405 is screwed onto the U-shaped frame 401, and the positioning head 405 and the hydraulic cylinder 404 are positioned opposite each other. By setting the positioning head 405, the chamfer position of the valve stem 6 of different lengths can be flexibly adjusted. At the same time, in conjunction with the hydraulic cylinder 404, the valve stem 6 transmitted by the feeding mechanism 5 can be pushed to the positioning head 405 to realize the automatic feeding process, reduce the labor intensity of workers, and improve production efficiency.

[0036] The power mechanism 3 includes a fixed base 303, which is symmetrically mounted on the workbench 1. A drive shaft for a chamfering head 302 is mounted in the center of the fixed base 303, and the drive shaft of the chamfering head 302 is connected to the rotating head of a reducer 304. By setting up the power mechanism 3 and mounting the fixed base 303 on the workbench 1, and simultaneously using the reducer 304 to drive the chamfering head 302 to rotate, and with the reducer 304 and chamfering head 302 electrically connected to the controller 2, the controller 2 controls the automatic extension and retraction of the chamfering head 302 to perform chamfering work on the holes on the valve stem 6. The controller 2 also controls the reducer 304 to cooperate with the chamfering head 302.

[0037] The feeding mechanism 5 includes a support 501, which is fixedly installed on the top side of the workbench 1. A hydraulic cylinder 502 is mounted on one end of the support 501, and a connecting plate 503 is mounted on the end of the telescopic rod of the hydraulic cylinder 502. One end of the connecting plate 503 is fixedly connected to a movable plate 504, which slides on the support 501. Multiple valve stems 6 are placed on the top of the support 501. By setting up the feeding mechanism 5, the hydraulic cylinder 502 drives the movable plate 504 to slide on one side of the support 501, thereby pushing the valve stems 6 out of the hopper and causing them to slide onto the fixed mechanism 4, allowing subsequent components to perform chamfering operations on them.

[0038] The workbench 1 is equipped with adjustable feet 101 at its four corners. By installing the adjustable feet 101, the workbench 1 can be placed stably on the ground.

[0039] The controller 2 can be a Siemens S7-300 series PLC controller.

[0040] The working principle of this utility model is as follows: During use, the controller 2 controls the feeding mechanism 5, causing the hydraulic cylinder 4 502 to drive the movable plate 504 to push the valve stem 6 out of the hopper and slide it onto the roller base 411 and V-shaped seat 410 on the fixed mechanism 4. The controller 2 then starts the hydraulic cylinder 3 404 to abut the valve stem 6 against the positioning head 405, and starts the hydraulic cylinder 2 403 to abut the roller 408 against the surface of the valve stem 6. The controller 2 then starts the motor 409 to drive the roller 408 to rotate, causing the valve stem 6 to rotate between the roller base 411 and the roller 408, thus adjusting the position of the hole. Afterwards, controller 2 starts cylinder 402 to abut the end of its telescopic rod 406 against the valve stem 6, thereby fixing the valve stem 6 on the V-shaped seat 410. Controller 2 then starts the power mechanism 3, using reducer 304 to drive the chamfering head 302 to rotate. The reducer 304 and chamfering head 302 are electrically connected to controller 2. Controller 2 controls the chamfering head 302 to automatically extend and retract, thereby performing chamfering work on the hole on the valve stem 6. Controller 2 controls the reducer 304 to cooperate with the chamfering head 302, thus completing the operation of the valve stem hole chamfering device.

[0041] All parts not described in this utility model are the same as or can be implemented using existing technology. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A valve stem hole chamfering device, characterized in that, include: The workbench (1) is equipped with a fixing mechanism (4) for chamfering the valve stem (6), a power mechanism (3), and a feeding mechanism (5) on its top, wherein: The fixing mechanism (4) fixes the valve stem (6); the power mechanism (3) chamfers the hole of the valve stem (6); the feeding mechanism (5) feeds the valve stem (6); A controller (2) is installed on one side of the workbench (1). The controller (2) is electrically connected to the power mechanism (3), the fixing mechanism (4) and the feeding mechanism (5) respectively through wires. The fixing mechanism (4) includes a U-shaped frame (401), which is fixedly installed on the top of the workbench (1). A hydraulic cylinder 1 (402), a hydraulic cylinder 2 (403), and a hydraulic cylinder 3 (404) are respectively installed on the U-shaped frame (401). An abutment block (406) is installed at the end of the telescopic rod of the hydraulic cylinder 1 (402). The abutment block (406) cooperates with the V-shaped seat (410) below it. An adjusting base (407) is installed at the end of the telescopic rod of the hydraulic cylinder 2 (403). A roller (408) is rotatably connected inside the adjusting base (407). A motor (409) is installed at one end of the roller (408). A roller base (411) is correspondingly provided below the roller (408). The roller base (411) and the V-shaped seat (410) are installed on the workbench (1).

2. The valve stem hole chamfering device according to claim 1, characterized in that: A positioning head (405) is installed on one side of the U-shaped frame (401). The positioning head (405) is screwed onto the U-shaped frame (401). The positioning head (405) and the hydraulic cylinder (404) are arranged opposite to each other.

3. The valve stem hole chamfering device according to claim 1, characterized in that: The power mechanism (3) includes a fixed base (303), which is symmetrically mounted on the workbench (1). The drive shaft of the chamfering head (302) is installed in the middle of the fixed base (303), and the drive shaft of the chamfering head (302) is connected to the rotating head of the reducer (304).

4. The valve stem hole chamfering device according to claim 1, characterized in that: The feeding mechanism (5) includes a bracket (501), which is fixedly installed on the top side of the workbench (1). A hydraulic cylinder (502) is installed at one end of the bracket (501). A connecting plate (503) is installed at the end of the telescopic rod of the hydraulic cylinder (502). One end of the connecting plate (503) is fixedly connected to a movable plate (504). The movable plate (504) slides on the bracket (501). Multiple valve rods (6) are placed on the top of the bracket (501).

5. A valve stem hole chamfering device according to claim 1, characterized in that: The workbench (1) is equipped with adjustable feet (101) at the four corners of its bottom.

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