A thread tapping device for valve stem machining

Abstract

This utility model discloses a thread tapping device for valve stem processing, relating to the field of valve stem technology. Addressing the problem of frequent clamping of valve stems required in the prior art, which is unsuitable for mass production and results in low efficiency, the present invention proposes the following solution: It includes a base plate and a mounting mechanism. The mounting mechanism includes two mounting plates welded to the top outer wall of the base plate, and two unloading plates bolted to opposite outer walls of the two mounting plates. A feeding assembly is located above the mounting plates, including a feeding hopper with an arc-shaped groove at the bottom. A conveying assembly is located between the two mounting plates, including a conveying motor, a mounting shaft connected to one end of the conveying motor's output shaft via a coupling, and a conveying roller with a U-shaped mounting groove on its outer wall. This utility model eliminates the need for frequent clamping during tapping, simplifying the operation and making it suitable for mass production of valve stems, thus improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of valve stem technology, and in particular to a thread tapping device for valve stem processing. Background Technology

[0002] The valve stem is an important component of a valve, used for transmission. It connects to the actuator or handle at the top and directly drives the valve core to move or rotate, thereby realizing the valve's opening and closing or regulating function. During the valve stem manufacturing process, the end side of the valve stem needs to be tapped.

[0003] A search revealed a Chinese patent (application number "202322534628.7") that discloses "a thread tapping device for valve stem processing." This tapping device includes a worktable with a circulation assembly for coolant circulation on its lower end face. The upper end of the worktable is respectively equipped with a clamping assembly for fixing the valve stem and a tool holder assembly for tapping. The circulation assembly includes a housing, a liquid inlet, a positioning groove, a clamping plate, a first filter screen, a positioning part, a side flow plate, a fixing cylinder, a second filter screen, a water pump, and a rotating nozzle. However, this tapping device requires frequent clamping of the valve stem during use, making it unsuitable for mass production of valve stems and resulting in low work efficiency. Utility Model Content

[0004] This utility model provides a thread tapping device for valve stem processing, which solves the problem that the tapping device proposed in the prior art requires frequent clamping of the valve stem when tapping the end side of the valve stem, making it unsuitable for mass production of valve stems and resulting in low work efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A thread tapping device for valve stem machining includes a base plate and a mounting mechanism. The mounting mechanism includes two mounting plates welded to the top outer wall of the base plate and two unloading plates bolted to opposite outer walls of the two mounting plates. A feeding assembly is provided above the mounting plates, including a feeding hopper with an arc-shaped groove at the bottom. A conveying assembly is provided between the two mounting plates, including a conveying motor, a mounting shaft connected to one end of the output shaft of the conveying motor via a coupling, and a conveying roller with a U-shaped mounting groove on its outer wall. An extrusion device is provided above the base plate. The extrusion assembly includes a fixed plate bolted to one outer wall of two mounting plates, an extrusion cylinder bolted to one outer wall of the fixed plate, a connecting plate bolted to one end of the piston rod of the extrusion cylinder, and an extrusion block bolted to one outer wall of the connecting plate. Each of the two mounting plates is equipped with a tapping assembly, which includes an adjusting cylinder, a connecting plate bolted to one end of the piston rod of the adjusting cylinder at its lower part, a tapping motor bolted to the upper outer wall of one side of the connecting plate, a drive shaft penetrating and slidably mounted on the outer wall of the mounting plate, and a tap.

[0007] Preferably, each of the two mounting plates has two stabilizing plates bolted to one side of its outer wall, and the four stabilizing plates are bolted to the top outer wall of the base plate.

[0008] Preferably, mounting blocks are bolted to the outer walls on both sides of the feeding hopper, and the two mounting blocks are bolted to the top outer walls of the two mounting plates respectively. Several reinforcing plates are welded to the inner walls of the two mounting blocks.

[0009] Preferably, a mounting bracket is welded to one side of the outer wall of the mounting plate, and the conveying motor is bolted to the outer wall of the mounting bracket. The two ends of the mounting shaft pass through and are connected to the outer walls of the two mounting plates through bearings, and the conveying roller is connected to the outer wall of the mounting shaft through a pin.

[0010] Preferably, two limiting rods are bolted to one outer wall of the connecting plate, and the two limiting rods are respectively inserted through and slidably installed on the outer wall of the fixing plate.

[0011] The above scheme stores multiple valve stems in a hopper. The output shaft of the conveyor motor rotates, causing the conveyor roller to rotate, so that a single valve stem in the hopper falls into the mounting groove on the conveyor roller. Then, the output shaft of the conveyor motor drives the conveyor roller and the valve stem to rotate at a certain angle, so that the inner wall of the mounting groove is horizontal. The piston rod of the extrusion cylinder drives the extrusion block to move, so that the extrusion block is located in the mounting groove. The extrusion block and the mounting groove cooperate with each other to extrude and fix the valve stem.

[0012] Preferably, a T-shaped fixing frame is welded to the top outer wall of the base plate, and one end of the fixing frame is welded to the outer wall of one side of the mounting plate. The adjusting cylinder is connected to the outer wall of one side of the fixing frame by bolts. The bottom of the connecting plate abuts against the upper outer wall of the fixing frame. The drive shaft is connected to the outer wall of one end of the tapping motor output shaft by a coupling, and one end of the drive shaft is connected to a mounting component by bolts. One end of the tap is inserted into the mounting component by fastening bolts.

[0013] The above scheme uses one of the adjusting cylinder piston rods to drive the connecting plate, tapping motor and tap to move. The output shaft of the tapping motor drives the transmission shaft and tap to rotate. While the transmission shaft rotates, it also moves along the axis, so that the tap contacts the end of the valve stem that needs to be tapped and taps the valve stem.

[0014] The beneficial effects of this utility model are as follows:

[0015] The feeding hopper stores multiple valve stems. The output shaft of the conveyor motor rotates, causing the conveyor roller to rotate, so that a single valve stem in the feeding hopper falls into the mounting groove on the conveyor roller. Then, the output shaft of the conveyor motor drives the conveyor roller and the valve stem to rotate at a certain angle, making the inner wall of the mounting groove horizontal. The piston rod of the extrusion cylinder drives the extrusion block to move, so that the extrusion block is located in the mounting groove. The extrusion block and the mounting groove cooperate to extrude and fix the valve stem. This eliminates the need for frequent clamping during tapping, simplifies the operation steps, and is suitable for large-scale valve stem production, improving work efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall main structure of a thread tapping device for valve stem processing proposed in this utility model.

[0017] Figure 2 This is a front view structural diagram of the installation mechanism of a thread tapping device for valve stem processing proposed in this utility model.

[0018] Figure 3 This is a schematic diagram of the main structure of the feeding assembly of a thread tapping device for valve stem processing proposed in this utility model.

[0019] Figure 4 This is a schematic diagram of the main structure of the conveying component of a thread tapping device for valve stem processing proposed in this utility model.

[0020] Figure 5 This is a schematic diagram of the main structure of the extrusion assembly of a thread tapping device for valve stem processing proposed in this utility model.

[0021] Figure 6 This is a schematic diagram of the main structure of the tapping assembly of a thread tapping device for valve stem processing proposed in this utility model.

[0022] In the diagram: 1. Base plate; 2. Mounting mechanism; 201. Mounting plate; 202. Unloading plate; 3. Feeding assembly; 301. Feeding hopper; 302. Mounting block; 4. Conveying assembly; 401. Mounting frame; 402. Conveying motor; 403. Mounting shaft; 404. Conveying roller; 5. Extrusion assembly; 501. Fixing plate; 502. Extrusion cylinder; 503. Connecting plate; 504. Limiting rod; 505. Extrusion block; 6. Tapping assembly; 601. Fixing frame; 602. Adjusting cylinder; 603. Connecting plate; 604. Tapping motor; 605. Drive shaft; 606. Mounting component; 607. Tap. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example 1, referring to Figure 1-5A thread tapping device for valve stem processing includes a base plate 1 and a mounting mechanism 2. The mounting mechanism 2 includes two mounting plates 201 welded to the top outer wall of the base plate 1 and unloading plates 202 bolted to the opposite outer walls of the two mounting plates 201. Two stabilizing plates are bolted to one outer wall of each mounting plate 201, and four stabilizing plates are bolted to the top outer wall of the base plate 1. A feeding assembly 3 is provided above the mounting plates 201. The feeding assembly 3 includes a feeding hopper 301 with an arc-shaped groove at the bottom. Mounting blocks 302 are bolted to the outer walls of both sides of the feeding hopper 301. The two mounting blocks 302 are bolted to the top outer walls of the two mounting plates 201. Several reinforcing plates are welded to the inner walls of the two mounting blocks 302. A conveying assembly 4 is provided between the two mounting plates 201. The conveying assembly 4 includes a conveying motor 402 and a coupling connected to one end of the output shaft of the conveying motor 402. The mounting shaft 403 and the conveyor roller 404 with a "U"-shaped mounting groove on the outer wall are mounted on the mounting plate 201. The mounting bracket 401 is welded to one side of the outer wall of the mounting bracket 401 by bolts. The two ends of the mounting shaft 403 are respectively connected to the outer walls of the two mounting plates 201 by bearings. The conveyor roller 404 is connected to the outer wall of the mounting shaft 403 by pins. An extrusion assembly 5 is provided above the bottom plate 1. The extrusion assembly 5 includes a fixed plate 501 connected to one side of the outer wall of the two mounting plates 201 by bolts, an extrusion cylinder 502 connected to one side of the outer wall of the fixed plate 501 by bolts, a connecting plate 503 connected to one end of the piston rod of the extrusion cylinder 502 by bolts, and an extrusion block 505 connected to one side of the outer wall of the connecting plate 503 by bolts. Two limit rods 504 are connected to one side of the outer wall of the connecting plate 503 by bolts. The two limit rods 504 are respectively connected to and slidably mounted on the outer wall of the fixed plate 501.

[0025] Example 2, refer to Figure 6 A thread tapping device for valve stem processing further includes two tapping assemblies 6. Each tapping assembly 6 includes an adjusting cylinder 602, a connecting plate 603 bolted to one end of the piston rod of the adjusting cylinder 602, a tapping motor 604 bolted to the upper outer wall of one side of the connecting plate 603, a drive shaft 605 and a tap 607 that pass through and slide on the outer wall of the mounting plate 201. A T-shaped fixing frame 601 is welded to the top outer wall of the base plate 1. One end of the fixing frame 601 is welded to the outer wall of one side of the mounting plate 201. The adjusting cylinder 602 is bolted to the outer wall of one side of the fixing frame 601. The bottom of the connecting plate 603 abuts against the upper outer wall of the fixing frame 601. The drive shaft 605 is connected to the outer wall of one end of the output shaft of the tapping motor 604 via a coupling. One end of the drive shaft 605 is bolted to a mounting part 606. One end of the tap 607 is inserted into the mounting part 606 via a fastening bolt.

[0026] Working principle: The feeding hopper 301 stores multiple valve stems. The output shaft of the conveying motor 402 rotates, driving the conveying roller 404 to rotate, so that a single valve stem in the feeding hopper 301 falls into the mounting groove on the conveying roller 404. Then, the output shaft of the conveying motor 402 drives the conveying roller 404 and the valve stem to rotate at a certain angle, so that the inner wall of the mounting groove is horizontal. The piston rod of the extrusion cylinder 502 drives the extrusion block 505 to move, so that the extrusion block 505 is located in the mounting groove. The extrusion block 505 and the mounting groove cooperate to extrude and fix the valve stem. One of the adjusting cylinders 602 drives the connecting plate 603, the tapping motor 604 and the tap 607 to move. The output shaft of the tapping motor 604 drives the transmission shaft 605 and the tap 607 to rotate. While the transmission shaft 605 rotates, it also moves along the axis, so that the tap 607 contacts the end of the valve stem that needs to be tapped and taps the valve stem.

[0027] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A tapping device for machining valve stems, comprising a base plate (1) and a mounting mechanism (2), characterized in that The installation mechanism (2) includes two mounting plates (201) welded to the top outer wall of the base plate (1) and unloading plates (202) connected to the opposite outer walls of the two mounting plates (201) by bolts on both sides; The mounting plate (201) is provided with a feeding assembly (3) above it. The feeding assembly (3) includes a feeding hopper (301) with an arc-shaped groove at the bottom. A conveying assembly (4) is provided between the two mounting plates (201). The conveying assembly (4) includes a conveying motor (402), a mounting shaft (403) connected to one end of the output shaft of the conveying motor (402) via a coupling, and a conveying roller (404) with a "U"-shaped mounting groove on its outer wall. The base plate (1) is provided with an extrusion assembly (5). The extrusion assembly (5) includes a fixing plate (501) bolted to the outer wall of one side of the two mounting plates (201), an extrusion cylinder (502) bolted to the outer wall of one side of the fixing plate (501), a connecting plate (503) bolted to one end of the piston rod of the extrusion cylinder (502), and an extrusion block (505) bolted to the outer wall of one side of the connecting plate (503). Both mounting plates (201) are provided with a tapping assembly (6) on one side. The tapping assembly (6) includes an adjusting cylinder (602), a connecting plate (603) connected to one end of the piston rod of the adjusting cylinder (602) by bolts, a tapping motor (604) connected to the upper outer wall of one side of the connecting plate (603) by bolts, a drive shaft (605) and a tap (607) that pass through and slide on the outer wall of the mounting plate (201).

2. The thread tapping device for valve stem machining according to claim 1, characterized in that, Two stabilizing plates are bolted to one side of the outer wall of each of the two mounting plates (201), and the four stabilizing plates are bolted to the top outer wall of the base plate (1).

3. The thread tapping device for valve stem machining according to claim 1, characterized in that, The two outer walls of the feeding hopper (301) are each connected to the mounting blocks (302) by bolts, and the two mounting blocks (302) are respectively connected to the top outer walls of the two mounting plates (201) by bolts. Several reinforcing plates are welded to the inner walls of the two mounting blocks (302).

4. The thread tapping device for valve stem machining according to claim 1, characterized in that, A mounting bracket (401) is welded to one side of the outer wall of the mounting plate (201), and the conveying motor (402) is bolted to one side of the outer wall of the mounting bracket (401). The two ends of the mounting shaft (403) pass through and are connected to the outer walls of the two mounting plates (201) through bearings, and the conveying roller (404) is connected to the outer wall of the mounting shaft (403) through a pin.

5. The thread tapping device for valve stem machining according to claim 1, characterized in that, Two limiting rods (504) are bolted to one outer wall of the connecting plate (503), and the two limiting rods (504) are respectively inserted through and slidably installed on the outer wall of the fixing plate (501).

6. The thread tapping device for valve stem machining according to claim 1, characterized in that, A T-shaped fixing frame (601) is welded to the top outer wall of the base plate (1), and one end of the fixing frame (601) is welded to the outer wall of the mounting plate (201). The adjusting cylinder (602) is connected to the outer wall of the fixing frame (601) by bolts. The bottom of the connecting plate (603) abuts against the upper outer wall of the fixing frame (601). The drive shaft (605) is connected to the outer wall of one end of the output shaft of the tapping motor (604) by a coupling, and one end of the drive shaft (605) is connected to the mounting part (606) by bolts. One end of the tap (607) is inserted into the mounting part (606) by fastening bolts.

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