A device and process for roughing the head of a gate valve blank

Abstract

This invention provides a device and process for upsetting the head of a gate valve blank, relating to the field of gate valve upsetting technology. The device includes: a support base, an upsetting mechanism, a switching mechanism, a multi-functional mechanism, a stabilizing mechanism, and a supporting mechanism. The upsetting mechanism is installed on top of the support base and is used to move the upper die. The switching mechanism is installed on the upsetting mechanism. The multi-functional mechanism is installed on the upsetting mechanism. The stabilizing mechanism is installed on top of the switching mechanism. The supporting mechanism is installed on the front side of the upsetting mechanism. This invention achieves automatic switching between two upsetting processes, which is beneficial for improving the upsetting efficiency of gate valve blanks. It solves the problem that the lack of a lower die switching structure generally leads to excessive time spent removing the processed gate valve blank and placing the blank to be processed, hindering efficient processing of gate valve blanks.

Description

Technical Field

[0001] This invention belongs to the field of gate valve roughing technology, and more specifically, it relates to a gate valve blank head roughing equipment and process. Background Technology

[0002] The main purpose of upsetting the head of the gate valve blank is to meet the requirements of structural strength and sealing performance. Through the upsetting process, the metal density of the valve head can be increased, improving its pressure resistance and impact resistance, and ensuring the reliability of the valve under high pressure conditions. At the same time, the upset head can form a more uniform metal flow line, reduce internal defects, and provide a better material basis for subsequent precision machining.

[0003] The currently used upsetting equipment still has the following problems:

[0004] 1. Generally, the lack of a lower mold switching structure results in a lot of time being spent removing the processed gate valve blank and placing the gate valve blank to be processed, which is not conducive to the efficient processing of the gate valve blank.

[0005] 2. The hydraulic cylinders on the punch are usually equipped with a buffer device, while the other hydraulic cylinders on the equipment are basic hydraulic cylinders, which makes the basic hydraulic cylinders on the equipment prone to damage due to impact and vibration.

[0006] 3. When workers pick up the gate valve blanks to be processed and place the processed gate valve blanks, they need to walk a certain distance, which increases the labor intensity of the workers. Summary of the Invention

[0007] This disclosure relates to a gate valve blank head upsetting device and its process, which includes an upsetting mechanism, a switching mechanism, a multi-functional mechanism, a stabilizing mechanism, and a supporting mechanism; it realizes automatic switching between two upsetting processes, which is beneficial to improving the upsetting efficiency of the gate valve blank; two extrusion separation frames can push two L-shaped connecting frames outward, so that the two L-shaped connecting frames are separated from the output shaft of the hydraulic cylinder b, avoiding damage to the hydraulic cylinder b by the impact force generated during upsetting; the operator does not need to walk around repeatedly when picking up the gate valve blank to be processed and placing the processed gate valve blank, reducing the labor intensity of the operator; it solves the problems of lack of lower die switching structure, easy damage to the basic hydraulic cylinder due to impact and vibration, and high labor intensity of the operator.

[0008] In a first aspect, this disclosure provides a gate valve blank head-building device, comprising: a support base, a building-up mechanism, a switching mechanism, a multi-functional mechanism, a stabilizing mechanism, and a support mechanism; the building-up mechanism is mounted on top of the support base and is used to move the upper die; the switching mechanism is mounted on the building-up mechanism and is used to move two lower dies; the multi-functional mechanism is mounted on the building-up mechanism and is used to position the switching mechanism, and also to separate the switching mechanism from the building-up mechanism; the stabilizing mechanism is mounted on top of the switching mechanism and is used to improve the stability of the switching mechanism after it moves; the support mechanism is mounted on the front side of the building-up mechanism and is used to place the gate valve blank to be processed and the processed blank.

[0009] In at least some embodiments, the piercing mechanism includes: a piercing frame and a movable piercing seat; the top of the piercing frame has two arc-shaped grooves; the movable piercing seat is slidably mounted on the piercing frame.

[0010] In at least some embodiments, the piercing mechanism further includes: a hydraulic cylinder a, a mounting plate, and a hydraulic cylinder b; the hydraulic cylinder a is fixedly mounted on the piercing frame, and the output shaft of the hydraulic cylinder a is fixedly connected to the movable piercing seat; the mounting plate is fixedly mounted on the right side of the piercing frame; and the hydraulic cylinder b is fixedly mounted on the mounting plate.

[0011] In at least some embodiments, the switching mechanism includes: a movable switching seat, circular positioning tubes, and L-shaped connecting frames; the movable switching seat is slidably mounted on the pier frame; there are four circular positioning tubes, and the four circular positioning tubes are fixedly mounted on the top of the movable switching seat, and the distance between the two circular positioning tubes on the left and right sides is the same as the distance between the two arc-shaped grooves; there are two L-shaped connecting frames, and the two L-shaped connecting frames are slidably mounted on the movable switching seat; the bottom ends of the two L-shaped connecting frames are chamfered, and the bottom ends of the two L-shaped connecting frames are inserted into the output shaft of the hydraulic cylinder b.

[0012] In at least some embodiments, the switching mechanism further includes: a circular positioning rod, a circular mounting block, and a return spring a; there are two circular positioning rods, which are fixedly installed inside the two L-shaped connecting frames, and the two circular positioning rods also contact the movable switching seat; there are two circular mounting blocks, which are fixedly installed on the two L-shaped connecting frames; there are two return springs a, which are sleeved on the outside of the two circular mounting blocks.

[0013] In at least some embodiments, the multifunctional mechanism includes: a mounting bracket, circular positioning shafts, and extrusion separation frames; the mounting bracket is fixedly installed on the right side of the movable pier base; there are two circular positioning shafts, and the two circular positioning shafts are fixedly installed at the bottom of the mounting bracket; the bottom ends of the two circular positioning shafts are chamfered, and the two circular positioning shafts are concentrically arranged with the two circular positioning tubes on the right side; there are two extrusion separation frames, and the two extrusion separation frames are fixedly installed at the bottom of the mounting bracket, and the distance between the two extrusion separation frames is the same as the distance between the two arc-shaped grooves.

[0014] In at least some embodiments, the stabilizing mechanism includes: a V-shaped stabilizing plate, a circular stabilizing pin, a supporting ring, and a supporting spring; the V-shaped stabilizing plate is fixedly installed on the top of the movable switching seat; the circular stabilizing pin is slidably installed on the V-shaped stabilizing plate and the movable switching seat, and the bottom of the circular stabilizing pin is provided with rounded corners, and the bottom of the circular stabilizing pin is inserted into the arc-shaped groove on the left side; the supporting ring is fixedly installed on the outside of the circular stabilizing pin; the supporting spring is sleeved on the outside of the circular stabilizing pin, and the supporting spring is located between the V-shaped stabilizing plate and the supporting ring.

[0015] In at least some embodiments, the support mechanism includes: a support mounting frame, circular guide shafts, and a movable support plate; the support mounting frame is fixedly mounted on the front side of the pier frame; there are two circular guide shafts, and the two circular guide shafts are fixedly mounted on the support mounting frame; the movable support plate is slidably mounted on the outside of the two circular guide shafts.

[0016] In at least some embodiments, the support mechanism further includes: a return spring b, a rectangular frame, and a partition plate; there are four return springs b, which are sleeved on the outside of two circular guide shafts and located on the left and right sides of the movable support plate; the rectangular frame is fixedly installed on the top of the movable support plate; the partition plate is slidably installed on the rectangular frame, and the partition plate is interference-fitted with the rectangular frame.

[0017] In another aspect, this disclosure provides a process for roughing the head of a gate valve blank, comprising the following steps:

[0018] 1) The workers fixed the upper upsetting die to the movable upsetting base and fixed the two lower upsetting dies to the movable switching base;

[0019] 2) Place the gate valve blank to be processed within the rectangular frame, so that the entire gate valve blank to be processed is on one side of the partition plate;

[0020] 3) Position the gate valve blank to be processed on the corresponding upsetting lower die, and then start hydraulic cylinder a; then remove the gate valve blank processed on another upsetting lower die, and then position the gate valve blank to be processed on the corresponding upsetting lower die.

[0021] 4) The processed gate valve blank is placed on the other side of the partition plate. Then, the hydraulic cylinder b is started to move the two upsetting lower dies, causing the movable switching seat to move.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. This invention facilitates the worker to fix the upper upsetting die on the movable upsetting seat and fix the two lower upsetting dies on the movable switching seat; when the output shaft of hydraulic cylinder a extends, the movable upsetting seat drives the upper upsetting die to move downward, thereby realizing the upsetting process of the head of the shut-off valve blank.

[0024] Furthermore, when the output shaft of hydraulic cylinder b retracts, the movable switching seat drives the two upsetting lower dies to slide to the right; when the output shaft of hydraulic cylinder b extends, the movable switching seat drives the two upsetting lower dies to slide to the left, realizing the automatic switching of the two upsetting processes. This allows the operator to remove the upset gate valve blank from the upsetting lower die when processing another gate valve blank, and then install the gate valve blank to be processed on the upsetting lower die, which helps to improve the upsetting efficiency of the gate valve blank. The setting of the two circular positioning rods plays a limiting role on the two L-shaped connecting frames, preventing the two L-shaped connecting frames from rotating.

[0025] 2. The circular stabilizing pin of the present invention allows the movable switching seat to remain in a stable state after sliding; when the output shaft of the hydraulic cylinder b extends or retracts, the circular stabilizing pin can move upward, so that the circular stabilizing pin separates from the corresponding arc-shaped groove.

[0026] Furthermore, when the movable upsetting seat moves the upsetting upper die downwards, the two circular positioning shafts can be inserted into the corresponding two circular positioning tubes, thus positioning the movable switching seat. When the movable upsetting seat moves the upsetting upper die downwards, the two extrusion separation frames can push the two L-shaped connecting frames outwards, separating the two L-shaped connecting frames from the output shaft of the hydraulic cylinder b, thus preventing the impact force generated during upsetting from damaging the hydraulic cylinder b. When the movable upsetting seat moves the upsetting upper die upwards, the two L-shaped connecting frames can continue to be inserted into the output shaft of the hydraulic cylinder b under the action of the two return springs a.

[0027] 3. The rectangular frame and partition plate of this invention effectively classify and place the gate valve blanks to be processed and those already processed. When the worker is on the left side of the movable support plate and needs to operate the gate valve blank on the right upsetting die, the movable support plate can slide to the right under the action of the worker's body. When the worker is on the right side of the movable support plate and needs to operate the gate valve blank on the left upsetting die, the movable support plate can slide to the left under the action of the worker's body. This ensures that the movable support plate is always on one side of the worker's body under the action of the four return springs b. The worker does not need to move around repeatedly when picking up the gate valve blank to be processed and placing the processed gate valve blank, thus reducing the worker's labor intensity. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0029] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0030] In the attached diagram:

[0031] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown;

[0032] Figure 2 The present invention is shown. Figure 1 A schematic diagram of the structure from the rear side view;

[0033] Figure 3 A schematic diagram of the structure of the piercing mechanism of the present invention is shown;

[0034] Figure 4 A schematic diagram of the switching mechanism of the present invention is shown;

[0035] Figure 5 The present invention is shown. Figure 4 A magnified schematic diagram of a portion of region A in the middle;

[0036] Figure 6 The present invention is shown. Figure 1 A schematic diagram of the transverse center section structure;

[0037] Figure 7 The present invention is shown. Figure 6 Schematic diagram of the cross-sectional structure in the middle BB direction;

[0038] Figure 8 The present invention is shown. Figure 7 A magnified schematic diagram of a portion of region C in the middle;

[0039] Figure 9 The present invention is shown. Figure 6A magnified schematic diagram of a portion of region D in the middle;

[0040] Figure 10 A schematic diagram of the support mechanism of the present invention is shown.

[0041] List of reference numerals in the attached diagram:

[0042] 100. Support base;

[0043] 200. Upsetting mechanism; 201. Upsetting frame; 2011. Arc-shaped groove; 202. Movable upsetting seat; 203. Hydraulic cylinder a; 204. Mounting strip; 205. Hydraulic cylinder b;

[0044] 300. Switching mechanism; 301. Movable switching seat; 302. Circular positioning tube; 303. L-shaped connecting frame; 304. Circular positioning rod; 305. Circular mounting block; 306. Return spring a;

[0045] 400. Multifunctional mechanism; 401. Mounting bracket; 402. Circular positioning shaft; 403. Extrusion separation frame;

[0046] 500. Stabilizing mechanism; 501. V-shaped stabilizing plate; 502. Circular stabilizing pin; 503. Support ring; 504. Support spring;

[0047] 600. Support mechanism; 601. Support mounting bracket; 602. Circular guide shaft; 603. Movable support plate; 604. Return spring b; 605. Rectangular frame; 606. Divider plate. Detailed Implementation

[0048] To make the objectives, solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Unless otherwise stated, the terms used herein have their ordinary meanings in the art. The same reference numerals in the drawings represent the same parts.

[0049] Example: Please refer to Figures 1 to 10As shown: This invention provides a gate valve blank head upsetting device, comprising: a support base 100, an upsetting mechanism 200, a switching mechanism 300, a multi-functional mechanism 400, a stabilizing mechanism 500, and a support mechanism 600; the upsetting mechanism 200 is installed on the top of the support base 100 and is used to move the upper die; the switching mechanism 300 is installed on the upsetting mechanism 200 and is used to move the two lower dies; the multi-functional mechanism 400 is installed on the upsetting mechanism 200 and is used to position the switching mechanism 300, and also to separate the switching mechanism 300 from the upsetting mechanism 200; the stabilizing mechanism 500 is installed on the top of the switching mechanism 300 and is used to improve the stability of the switching mechanism 300 after movement; the support mechanism 600 is installed on the front side of the upsetting mechanism 200 and is used to place the gate valve blank to be processed and the processed blank.

[0050] In this embodiment of the disclosure, such as Figures 3 to 5 As shown, the piercing mechanism 200 includes: a piercing frame 201 and a movable piercing seat 202; the top of the piercing frame 201 has two arc-shaped grooves 2011; the movable piercing seat 202 is slidably mounted on the piercing frame 201; the piercing mechanism 200 also includes: a hydraulic cylinder a 203, a mounting plate 204, and a hydraulic cylinder b 205; the hydraulic cylinder a 203 is fixedly mounted on the piercing frame 201, and the output shaft of the hydraulic cylinder a 203 is fixedly connected to the movable piercing seat 202; the mounting plate 204 is fixedly mounted on the right side of the piercing frame 201; the hydraulic cylinder b 205 is fixedly mounted on the mounting plate 204;

[0051] The switching mechanism 300 includes: a movable switching seat 301, circular positioning tubes 302, and L-shaped connecting frames 303; the movable switching seat 301 is slidably mounted on the support frame 201; four circular positioning tubes 302 are provided, and the four circular positioning tubes 302 are fixedly mounted on the top of the movable switching seat 301, and the distance between the two circular positioning tubes 302 on the left and right sides is the same as the distance between the two arc-shaped grooves 2011; two L-shaped connecting frames 303 are provided, and the two L-shaped connecting frames 303 are slidably mounted on the movable switching seat 301; the bottom ends of the two L-shaped connecting frames 303 are chamfered, and the two L-shaped connecting frames 303... The bottom end is inserted into the output shaft of the hydraulic cylinder b205; the switching mechanism 300 also includes: a circular positioning rod 304, a circular mounting block 305, and a return spring a306; there are two circular positioning rods 304, and the two circular positioning rods 304 are fixedly installed inside the two L-shaped connecting brackets 303, and the two circular positioning rods 304 also contact the movable switching seat 301; there are two circular mounting blocks 305, and the two circular mounting blocks 305 are fixedly installed on the two L-shaped connecting brackets 303; there are two return springs a306, and the two return springs a306 are sleeved on the outside of the two circular mounting blocks 305;

[0052] Its specific function is as follows: because the movable upsetting seat 202 has a set of threaded holes and the movable switching seat 301 has two sets of threaded holes, it is convenient for the workers to fix the upsetting upper die on the movable upsetting seat 202 and fix the two upsetting lower dies on the movable switching seat 301; and because the hydraulic cylinder a203 is fixedly installed on the upsetting frame 201 and the output shaft of the hydraulic cylinder a203 is fixedly connected to the movable upsetting seat 202, when the output shaft of the hydraulic cylinder a203 extends, the movable upsetting seat 202 drives the upsetting upper die to move downward, thereby realizing the upsetting of the head of the shut-off valve blank.

[0053] Furthermore, since the hydraulic cylinder b205 is fixedly mounted on the mounting plate 204, and the two L-shaped connecting brackets 303 are slidably mounted on the movable switching seat 301, with the bottom ends of the two L-shaped connecting brackets 303 inserted into the output shaft of the hydraulic cylinder b205, when the output shaft of the hydraulic cylinder b205 retracts, the movable switching seat 301 drives the two upsetting lower dies to slide to the right; when the output shaft of the hydraulic cylinder b205 extends, the movable switching seat 301 drives the two upsetting lower dies to slide to the left, thus realizing the automatic switching of the two upsetting processes. This allows the operator to remove the upset valve blank from the upset die and then install the valve blank to be processed on the upset die when processing another gate valve blank, which helps improve the upset processing efficiency of the gate valve blank. Furthermore, since the two circular positioning rods 304 are fixedly installed inside the two L-shaped connecting brackets 303, and the two circular positioning rods 304 are also in contact with the movable switching seat 301, they play a limiting role on the two L-shaped connecting brackets 303, preventing the two L-shaped connecting brackets 303 from rotating.

[0054] In this embodiment of the disclosure, such as Figures 7 to 9 As shown, the multi-functional mechanism 400 includes: a mounting bracket 401, a circular positioning shaft 402, and a compression separation frame 403; the mounting bracket 401 is fixedly installed on the right side of the movable block seat 202; there are two circular positioning shafts 402, and the two circular positioning shafts 402 are fixedly installed at the bottom of the mounting bracket 401; the bottom ends of the two circular positioning shafts 402 are chamfered, and the two circular positioning shafts 402 are concentrically arranged with the two circular positioning tubes 302 on the right side; there are two compression separation frames 403, and the two compression separation frames 403 are fixedly installed at the bottom of the mounting bracket 401, and the distance between the two compression separation frames 403 is the same as the distance between the two arc-shaped grooves 2011;

[0055] The stabilizing mechanism 500 includes: a V-shaped stabilizing plate 501, a circular stabilizing pin 502, a supporting ring 503, and a supporting spring 504; the V-shaped stabilizing plate 501 is fixedly installed on the top of the movable switching seat 301; the circular stabilizing pin 502 is slidably installed on the V-shaped stabilizing plate 501 and the movable switching seat 301, and the bottom of the circular stabilizing pin 502 is provided with rounded corners, and the bottom of the circular stabilizing pin 502 is inserted into the arc-shaped groove 2011 on the left side; the supporting ring 503 is fixedly installed on the outside of the circular stabilizing pin 502; the supporting spring 504 is sleeved on the outside of the circular stabilizing pin 502, and the supporting spring 504 is located between the V-shaped stabilizing plate 501 and the supporting ring 503;

[0056] Its specific function is as follows: because the top of the pier frame 201 has two arc-shaped grooves 2011, and the circular stabilizing pin 502 is slidably installed on the V-shaped stabilizing plate 501 and the movable switching seat 301, and the bottom of the circular stabilizing pin 502 is inserted into the arc-shaped groove 2011 on the left, so that the movable switching seat 301 can be in a stable state after sliding; and because the bottom of the circular stabilizing pin 502 is provided with rounded corners, and the support spring 504 is sleeved on the outside of the circular stabilizing pin 502, and the support spring 504 is located between the V-shaped stabilizing plate 501 and the support ring 503, when the output shaft of the hydraulic cylinder b205 extends or retracts, the circular stabilizing pin 502 can move upward, so that the circular stabilizing pin 502 separates from the corresponding arc-shaped groove 2011;

[0057] Furthermore, since four circular positioning tubes 302 are fixedly installed on the top of the movable switching seat 301, and two circular positioning shafts 402 are fixedly installed on the bottom of the mounting bracket 401, and the two circular positioning shafts 402 are concentrically arranged with the two circular positioning tubes 302 on the right side, when the movable upsetting seat 202 drives the upsetting upper die to move downward, the two circular positioning shafts 402 can be inserted into the corresponding two circular positioning tubes 302, thus achieving a positioning effect on the movable switching seat 301; and since two extrusion separation frames 403 are fixedly installed on... At the bottom of the mounting bracket 401, when the movable upsetting seat 202 moves the upsetting upper die downward, the two extrusion separation frames 403 can push the two L-shaped connecting frames 303 outward, so that the two L-shaped connecting frames 303 are separated from the output shaft of the hydraulic cylinder b205, thus avoiding damage to the hydraulic cylinder b205 by the impact force generated during upsetting; when the movable upsetting seat 202 moves the upsetting upper die upward, the two L-shaped connecting frames 303 can continue to be inserted into the output shaft of the hydraulic cylinder b205 under the action of the two return springs a306.

[0058] In this embodiment of the disclosure, such as Figure 10As shown, the support mechanism 600 includes: a support mounting frame 601, circular guide shafts 602, and a movable support plate 603; the support mounting frame 601 is fixedly mounted on the front side of the pier frame 201; there are two circular guide shafts 602, and the two circular guide shafts 602 are fixedly mounted on the support mounting frame 601; the movable support plate 603 is slidably mounted on the outside of the two circular guide shafts 602; the support mechanism 600 also includes: a return spring b604, a rectangular frame 605, and a partition plate 606; there are four return springs b604, and the four return springs b604 are sleeved on the outside of the two circular guide shafts 602, and the four return springs b604 are located on the left and right sides of the movable support plate 603; the rectangular frame 605 is fixedly mounted on the top of the movable support plate 603; the partition plate 606 is slidably mounted on the rectangular frame 605, and the partition plate 606 and the rectangular frame 605 are interference-fitted together;

[0059] Its specific functions are as follows: Because the rectangular frame 605 is fixedly installed on the top of the movable support plate 603, and the partition plate 606 is slidably installed on the rectangular frame 605, and the partition plate 606 and the rectangular frame 605 are connected by an interference fit, it effectively classifies and places the gate valve blanks to be processed and those that have already been processed; Furthermore, because the movable support plate 603 is slidably installed outside the two circular guide shafts 602, and four return springs b604 are sleeved on the outside of the two circular guide shafts 602, and the four return springs b604 are located on the left and right sides of the movable support plate 603, when the operator is positioned on the movable support plate 603... When the operator is on the left side and needs to operate the gate valve blank on the right side upsetting die, the movable support plate 603 can slide to the right under the action of the operator's body. When the operator is on the right side of the movable support plate 603 and needs to operate the gate valve blank on the left side upsetting die, the movable support plate 603 can slide to the left under the action of the operator's body. This ensures that the movable support plate 603 is always on one side of the operator's body under the action of the four return springs b604. The operator does not need to move around repeatedly when picking up the gate valve blank to be processed and placing the processed gate valve blank, thus reducing the operator's labor intensity.

[0060] This invention provides a process for roughing the head of a gate valve blank, comprising the following steps:

[0061] 1) The workers fixed the upper upsetting die to the movable upsetting base 202 and fixed the two lower upsetting dies to the movable switching base 301;

[0062] 2) Place the gate valve blank to be processed in the rectangular frame 605, so that the entire gate valve blank to be processed is on one side of the partition plate 606.

[0063] 3) Position the gate valve blank to be processed on the corresponding upsetting lower die, and then start the hydraulic cylinder a203; then remove the gate valve blank processed on another upsetting lower die, and then position the gate valve blank to be processed on the corresponding upsetting lower die.

[0064] 4) The processed gate valve blank is placed on the other side of the partition plate 606. Then, the hydraulic cylinder b205 is started, so that the movable switching seat 301 drives the two upsetting lower dies to move.

[0065] The specific usage and function of this embodiment are as follows:

[0066] In use of this invention, the operator first fixes the upper upsetting die to the movable upsetting seat 202 and fixes the two lower upsetting dies to the movable switching seat 301. The valve blank to be processed is placed in the rectangular frame 605, ensuring that the entire valve blank is on one side of the separating plate 606. The valve blank is positioned on the corresponding lower upsetting die, and then the hydraulic cylinder a203 is activated. When the output shaft of the hydraulic cylinder a203 extends, the movable upsetting seat 202 drives the upper upsetting die downwards, achieving the upsetting of the valve blank head. When the movable upsetting seat 202 drives the upper upsetting die downwards, the two circular positioning shafts... 402 can be inserted into the corresponding two circular positioning tubes 302, which has a positioning effect on the movable switching seat 301; when the movable upsetting seat 202 drives the upsetting upper die to move downward, the two extrusion separation frames 403 can push the two L-shaped connecting frames 303 to move outward, so that the two L-shaped connecting frames 303 are separated from the output shaft of the hydraulic cylinder b205, avoiding damage to the hydraulic cylinder b205 by the impact force generated during upsetting; when the movable upsetting seat 202 drives the upsetting upper die to move upward, the two L-shaped connecting frames 303 can continue to be inserted into the output shaft of the hydraulic cylinder b205 under the action of the two return springs a306; the processed shut-off valve blank is placed Separating the other side of the plate 606, hydraulic cylinder b205 is then activated, causing movable switching seat 301 to move the two upsetting lower dies. When the output shaft of hydraulic cylinder b205 retracts, movable switching seat 301 drives the two upsetting lower dies to slide to the right. When the output shaft of hydraulic cylinder b205 extends, movable switching seat 301 drives the two upsetting lower dies to slide to the left, realizing automatic switching between the two upsetting processes. This allows the operator to remove the upset gate valve blank from the upsetting lower die and then install the gate valve blank to be processed onto the upsetting lower die when processing the other gate valve blank, which helps improve the upsetting efficiency of the gate valve blank. When the worker is positioned on the left side of the movable support plate 603 and needs to operate the gate valve blank on the right upsetting lower die, the movable support plate 603 can slide to the right under the action of the worker's body. When the worker is positioned on the right side of the movable support plate 603 and needs to operate the gate valve blank on the left upsetting lower die, the movable support plate 603 can slide to the left under the action of the worker's body. This ensures that the movable support plate 603 is always on one side of the worker's body under the action of the four return springs b604. The worker does not need to move around repeatedly when picking up the gate valve blank to be processed and placing the processed gate valve blank, thus reducing the worker's labor intensity.

[0067] The following points should be noted in this article:

[0068] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0069] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0070] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A device for roughing the head of a gate valve blank, comprising: The support base (100), the thickening mechanism (200), the switching mechanism (300), the multi-functional mechanism (400), the stabilizing mechanism (500), and the support mechanism (600) are characterized in that the thickening mechanism (200) is installed on the top of the support base (100) and is used to move the upper mold; the switching mechanism (300) is installed on the thickening mechanism (200) and is used to move the two lower molds; the multi-functional mechanism (400) is installed on the thickening mechanism (200) and is used to position the switching mechanism (300), and the multi-functional mechanism (400) is used to position the switching mechanism (300). 0) It is also used to separate the switching mechanism (300) from the upsetting mechanism (200); the stabilizing mechanism (500) is installed on the top of the switching mechanism (300), and the stabilizing mechanism (500) is used to improve the stability of the switching mechanism (300) after it moves; the supporting mechanism (600) is installed on the front side of the upsetting mechanism (200), and the supporting mechanism (600) is used to place the gate valve blank to be processed and processed; the upsetting mechanism (200) includes: an upsetting frame (201), a movable upsetting seat (202) and a hydraulic cylinder b (205); the top of the upsetting frame (201) has two arc-shaped grooves (2011). The switching mechanism (300) includes: a movable switching seat (301), circular positioning tubes (302), and L-shaped connecting frames (303); the movable switching seat (301) is slidably mounted on the pier frame (201); there are four circular positioning tubes (302), and the four circular positioning tubes (302) are fixedly mounted on the top of the movable switching seat (301), and the distance between the two circular positioning tubes (302) on the left and right sides is the same as the distance between the two arc-shaped grooves (2011); there are two L-shaped connecting frames (303), and the two L-shaped connecting frames (303) are slidably mounted on the movable switching seat (301); the bottom ends of the two L-shaped connecting frames (303) are chamfered, and the two L-shaped connecting frames (303) are... The bottom end is inserted into the output shaft of the hydraulic cylinder b (205); the switching mechanism (300) also includes: a circular positioning rod (304), a circular mounting block (305) and a return spring a (306); there are two circular positioning rods (304), and the two circular positioning rods (304) are fixedly installed inside the two L-shaped connecting frames (303), and the two circular positioning rods (304) are also in contact with the movable switching seat (301); there are two circular mounting blocks (305), and the two circular mounting blocks (305) are fixedly installed on the two L-shaped connecting frames (303); there are two return springs a (306), and the two return springs a (306) are sleeved on the outside of the two circular mounting blocks (305); The multifunctional mechanism (400) includes: a mounting bracket (401), a circular positioning shaft (402), and a compression separation frame (403); the mounting bracket (401) is fixedly installed on the right side of the movable block base (202); there are two circular positioning shafts (402), and the two circular positioning shafts (402) are fixedly installed at the bottom of the mounting bracket (401); the bottom ends of the two circular positioning shafts (402) are chamfered, and the two circular positioning shafts (402) are concentrically arranged with the two circular positioning tubes (302) on the right side; there are two compression separation frames (403), and the two compression separation frames (403) are fixedly installed at the bottom of the mounting bracket (401), and the distance between the two compression separation frames (403) is the same as the distance between the two arc-shaped grooves (2011); The support mechanism (600) includes: a support mounting frame (601), a circular guide shaft (602), and a movable support plate (603); the support mounting frame (601) is fixedly mounted on the front side of the pier frame (201); there are two circular guide shafts (602), and the two circular guide shafts (602) are fixedly mounted on the support mounting frame (601); the movable support plate (603) is slidably mounted on the outside of the two circular guide shafts (602); the support mechanism (600) also includes: a return spring b (604), a torque... The rectangular frame (605) and the partition plate (606) are provided; four return springs b (604) are provided in total, and the four return springs b (604) are sleeved on the outside of the two circular guide shafts (602), and the four return springs b (604) are located on the left and right sides of the movable support plate (603); the rectangular frame (605) is fixedly installed on the top of the movable support plate (603); the partition plate (606) is slidably installed on the rectangular frame (605), and the partition plate (606) is interference-fitted with the rectangular frame (605).

2. The gate valve blank head overlaying device according to claim 1, characterized in that, The movable pier base (202) is slidably installed on the pier frame (201).

3. The gate valve blank head roughing device according to claim 2, characterized in that, The piercing mechanism (200) further includes: a hydraulic cylinder a (203) and a mounting plate (204); the hydraulic cylinder a (203) is fixedly mounted on the piercing frame (201), and the output shaft of the hydraulic cylinder a (203) is fixedly connected to the movable piercing seat (202); the mounting plate (204) is fixedly mounted on the right side of the piercing frame (201); the hydraulic cylinder b (205) is fixedly mounted on the mounting plate (204).

4. The head-building device for a gate valve blank according to claim 3, characterized in that, The stabilizing mechanism (500) includes: a V-shaped stabilizing plate (501), a circular stabilizing pin (502), a supporting ring (503), and a supporting spring (504); the V-shaped stabilizing plate (501) is fixedly installed on the top of the movable switching seat (301); the circular stabilizing pin (502) is slidably installed on the V-shaped stabilizing plate (501) and the movable switching seat (301), and the bottom of the circular stabilizing pin (502) is provided with rounded corners, and the bottom of the circular stabilizing pin (502) is inserted into the arc-shaped groove (2011) on the left side; the supporting ring (503) is fixedly installed on the outside of the circular stabilizing pin (502); the supporting spring (504) is sleeved on the outside of the circular stabilizing pin (502), and the supporting spring (504) is located between the V-shaped stabilizing plate (501) and the supporting ring (503).

5. A process for roughing the head of a gate valve blank, using the gate valve blank roughing equipment as described in claim 4, characterized in that, The steps are as follows: 1) The workers fixed the upper upsetting die to the movable upsetting base (202) and fixed the two lower upsetting dies to the movable switching base (301); 2) Place the gate valve blank to be processed in the rectangular frame (605) so that the entire gate valve blank to be processed is on one side of the partition plate (606); 3) Position the gate valve blank to be processed on the corresponding upsetting lower die, and then start hydraulic cylinder a (203); then remove the gate valve blank processed on another upsetting lower die, and then position the gate valve blank to be processed on the corresponding upsetting lower die. 4) The processed shut-off valve blank is placed on the other side of the partition plate (606), and then the hydraulic cylinder b (205) is started, so that the movable switching seat (301) drives the two upsetting lower dies to move.

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