A manufacturing process and inspection equipment for a flanged valve body forging

Abstract

The application relates to a manufacturing process of a flange valve body forging and an inspection equipment, wherein the manufacturing process of the flange valve body forging comprises the following steps: raw material heating, mold casting and forging forming; after heat treatment, the workpiece is sent to a cooling system for three-stage cooling and heat energy recovery; demolding and preliminary detection; finishing, assembling and detection by the inspection equipment; the inspection equipment comprises a detection belt, a first rest table is arranged on the detection belt, a fixing piece is arranged on the first rest table, a detection table is arranged, the detection table comprises a detection box, a rotating piece and a lifting piece, the rotating piece is arranged on the detection box, and the lifting piece is arranged on the rotating piece; a discharge belt is arranged, and a second rest table is arranged on the discharge belt; the forging process of the application reduces the metal internal stress by improving the cooling mode; compared with the prior art, the inspection equipment is more stable during movement, and the safety is improved.

Description

Technical Field

[0001] This invention belongs to the field of flange forging technology, specifically a manufacturing process and inspection equipment for flange valve body forgings. Background Technology

[0002] Flanges are widely used in various industries and fields. Currently, flange production mainly adopts methods such as forging, casting and rolling.

[0003] Flanges are parts that connect shafts to shafts and are used for connecting pipe ends; they are also used on equipment inlets and outlets for connecting two pieces of equipment. As my country's technology develops, the requirements for the airtightness of equipment are becoming increasingly stringent.

[0004] Chinese patent publication number CN113649505A discloses a manufacturing process and inspection equipment for flange valve body forgings, which avoids the problem of needing to test them separately after purchase. However, there are still some problems in its application. For example, when the flange is lifted and moved by an electromagnet, the flange may shift, and it may even fall off under the action of inertia when encountering an emergency stop, which poses a safety risk and causes wear on the flange surface. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0006] Given the following technical problems in the existing technology: the cooling method in the existing process needs to be improved, and the existing inspection equipment uses electromagnets to attract the flange, which poses a risk of flange displacement or even detachment.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a manufacturing process for a flange valve body forging, comprising,

[0008] The raw materials are heated, cast into molds, and forged into shape.

[0009] After heat treatment, the workpiece is sent to a cooling system for three-stage cooling and heat recovery.

[0010] Demolding and preliminary inspection;

[0011] It is precision-machined, assembled, and tested by inspection equipment.

[0012] As a preferred technical solution for the manufacturing process of flange valve body forgings, the three-stage cooling includes:

[0013] The forging is rapidly cooled from the forging temperature to between 300°C and 500°C using water in the first temperature zone;

[0014] The forgings are cooled to near room temperature using water in the second temperature zone.

[0015] The temperature of the forging is precisely adjusted to room temperature using an adjustable medium.

[0016] As a preferred technical solution for the manufacturing process of a flange valve body forging, the water temperature range of the first temperature zone is 60℃ to 80℃;

[0017] The second temperature zone has a water temperature range of 30°C to 40°C.

[0018] This invention also discloses a flange valve body forging inspection device in the manufacturing process of the aforementioned flange valve body forging, including...

[0019] The inspection conveyor belt is provided with a first support platform, and a fixing component is provided on the first support platform;

[0020] The testing station includes a testing box, a rotating component, and a lifting component, wherein the rotating component is placed on the testing box and the lifting component is placed on the rotating component.

[0021] The discharge belt is equipped with a second support platform.

[0022] As a preferred technical solution for a flange valve body forging inspection equipment, the first support platform includes a first column tube and a first insertion shaft, the first column tube is provided with a first mounting plate, and the first mounting plate is provided with a first insertion hole;

[0023] The first insert shaft is inserted into the first socket.

[0024] As a preferred technical solution for an inspection device for flange valve body forgings, a first limiting plate is provided at the bottom of the first insert shaft, and a first spring is provided on the first limiting plate to connect the first mounting plate;

[0025] The first insert shaft is provided with a first annular groove, and the end of the first annular groove is provided with a shaft groove.

[0026] As a preferred technical solution for an inspection device for flange valve body forgings, an embedded shaft is provided in the shaft hole, and a limit shaft is provided at the end of the embedded shaft; the embedded shaft is connected to the bottom of the shaft groove by a second spring.

[0027] As a preferred technical solution for a flange valve body forging inspection equipment, the fixing component includes a fixing block and a pair of clamping blocks. One end of the fixing block is provided with a first circular groove inward, and the other end of the fixing block is provided with a second circular groove inward. The first circular groove and the second circular groove are coaxial and communicate with each other.

[0028] The fixing block is also provided with a first square groove, the side wall of the first circular groove is provided with a first through groove communicating with the first square groove, and the side wall of the second circular groove is provided with a second through groove communicating with the first square groove.

[0029] As a preferred technical solution for a flange valve body forging inspection equipment, the clamping block includes a side plate and a first clamping plate and a second clamping plate disposed at both ends of the side plate. The side plate is embedded in the first square groove, the first clamping plate is embedded in the first through groove, and the second clamping plate is embedded in the second through groove.

[0030] The first clamping plate is provided with a first arc hole, and a first chamfer is provided on the upper side of the first arc hole;

[0031] The second clamping plate is provided with a second arc hole, and a second chamfer is provided on the lower side of the second arc hole.

[0032] As a preferred technical solution for an inspection device for flange valve body forgings, the clamping block further includes a reset plate, which is connected to the first clamping plate and the second clamping plate;

[0033] The fixing block is also provided with a second square groove, and the reset plate is embedded in the second square groove and connected by a third spring.

[0034] The beneficial effects of the present invention are as follows: the forging process of the present invention reduces the internal stress of the metal by improving the cooling method, and the inspection equipment of the present invention is more stable during the movement process compared with the prior art, thus improving safety. Attached Figure Description

[0035] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0036] Figure 1 This is a schematic diagram of the overall structure of the testing equipment in this invention;

[0037] Figure 2 This is a schematic diagram of the structure of the first shelf in this invention;

[0038] Figure 3 This is a schematic diagram of the structure of the first insert shaft in this invention;

[0039] Figure 4 This is a schematic diagram of the structure of the second square groove in this invention;

[0040] Figure 5 This is a schematic diagram of the structure of the first square groove in this invention;

[0041] Figure 6 This is a schematic diagram of the clamping block in this invention;

[0042] Figure 7 This is a schematic diagram of the assembly structure of the fastener and the first insert shaft in this invention;

[0043] Figure 8 This is a schematic diagram of the hanging shaft in this invention;

[0044] Figure 9 This is a schematic diagram of the structure of the second shelf in this invention;

[0045] Figure label:

[0046] Components include: conveyor belt 100, first shelf 101, fastener 200, testing table 300, testing box 301, rotating component 302, lifting component 303, discharge belt 400, second shelf 401, inspection table 301a, rotary cylinder 302a, drive shaft 302b, horizontal plate 302c, telescopic cylinder 303a, output shaft 303b, connecting plate 303c, hanging shaft 303d, second annular groove 303e, bracket 304, first column tube 101a, first insert shaft 101b, first mounting plate 101c, first insertion hole 101d, first limiting plate 101e, first spring 101f, first annular groove 101g, shaft groove 101h, embedded shaft 101j, limiting shaft 101k, and second spring 1. 01m, fixing block 201, clamping block 202, first circular groove 201a, second circular groove 201b, first square groove 201c, first through groove 201d, second through groove 201e, side plate 202a, first clamping plate 202b, second clamping plate 202c, first arc hole 202d, first chamfer 202e, second arc hole 202f, second chamfer 202g, reset plate 202h, second square groove 201f, third spring 202j, second support platform 401, second column tube 401a, second insert shaft 401b, second mounting plate 401c, second insertion hole 401d, second limiting plate 401e, fourth spring 401f, third annular groove 401g, flange 500, mounting hole 501. Detailed Implementation

[0047] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0048] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0049] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0050] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0051] Example 1

[0052] This embodiment provides a manufacturing process for a flange valve body forging, including,

[0053] The raw materials are heated, cast into molds, and forged into shape.

[0054] After heat treatment, the workpiece is sent to a cooling system for three-stage cooling and heat recovery.

[0055] Demolding and preliminary inspection;

[0056] It is precision-machined, assembled, and tested by inspection equipment.

[0057] The three-stage cooling includes:

[0058] The forging is rapidly cooled from the forging temperature to between 300°C and 500°C using water in the first temperature zone;

[0059] The forgings are cooled to near room temperature using water in the second temperature zone.

[0060] The temperature of the forging is precisely adjusted to room temperature using an adjustable medium.

[0061] The water temperature range in the first temperature zone is 60°C to 80°C.

[0062] The second temperature zone has a water temperature range of 30°C to 40°C.

[0063] In the existing technology, the cooling methods used in the forging process of flange valve bodies are mostly traditional water cooling or chemical coolants. Although these methods can achieve rapid cooling of forgings, they have problems such as high energy consumption and environmental pollution.

[0064] Traditional flange valve body manufacturing processes primarily rely on mechanical pressure forging and standard cooling processes. Although using low global warming potential (GWP) media or circulating water as the cooling medium can reduce energy consumption and environmental impact to some extent, the potential of this process to improve forging quality and production efficiency has not yet been fully explored.

[0065] In this embodiment, the forging is initially cooled by water in the first temperature zone to bring it to the medium temperature range, that is, between 300°C and 500°C. This temperature range is suitable for most metal materials to transition from high temperature to medium temperature, reducing internal stress.

[0066] The first temperature zone corresponds to circulating water with a higher temperature, ranging from 60°C to 80°C. This temperature range is sufficient to quickly reduce the temperature of forgings from the forging temperature (usually >1000°C) to the medium temperature range, while avoiding thermal shock.

[0067] Subsequently, the second temperature zone water provides intermediate cooling, lowering the forging temperature to near room temperature, which can be 30°C to 50°C. The second temperature zone water can be set to 30°C to 40°C to lower the forging temperature from the intermediate temperature range to near room temperature, in preparation for fine cooling adjustments.

[0068] The adjustable medium can be R-32 (difluoromethane), which has a low GWP value and is suitable as a medium for the fine cooling stage. By adjusting the flow rate and pressure of the low GWP medium in the cooling system, the forging can be finely adjusted to the final required temperature (20°C to 25°C) to ensure stable performance.

[0069] Furthermore, heat pump technology can be used to recover heat energy in this process. Specifically, heat is absorbed from the cooling medium: the heat pump system absorbs heat from the cooling medium as it flows through the heat exchanger.

[0070] Transferring heat to preheated raw materials or forging environment: The heat pump transfers the absorbed heat to the preheated forging raw materials or forging environment through another heat exchanger, improving energy efficiency.

[0071] Location of the heat exchanger: It should be located between the outlet and inlet of the cooling system to efficiently absorb and release heat from the circulating water.

[0072] Heat storage tank setup: The heat storage tank should be located near the heat pump system to temporarily store the heat energy recovered from the cooling medium.

[0073] The steps for collecting and transferring thermal energy are as follows: After the heat exchanger absorbs thermal energy from the cooling medium, it is transported through pipelines to a thermal storage tank for storage. When it is necessary to preheat the raw materials or heat the environment, the thermal energy in the storage tank is then transferred to the target location through another set of pipelines and heat exchangers.

[0074] Example 2

[0075] Reference Figure 1 This embodiment provides a flange valve body forging inspection equipment in the manufacturing process of the aforementioned flange valve body forging, including a conveyor belt 100, a first support platform 101 on the conveyor belt 100, and a fixing member 200 on the first support platform 101.

[0076] The testing table 300 includes a testing box 301, a rotating component 302, and a lifting component 303. The rotating component 302 is placed on the testing box 301, and the lifting component 303 is placed on the rotating component 302.

[0077] The discharge belt 400 is equipped with a second shelf 401.

[0078] The testing box 301 is equipped with an inspection table 301a. The rotating component 302 includes a rotary cylinder 302, a transmission shaft 302b, and a horizontal plate 302c. The horizontal plate 302c is placed on the transmission shaft 302b. The lifting component 303 includes a telescopic cylinder 303a. The telescopic cylinder 303a is fixed on the horizontal plate 302c, and the output shaft 303b of the telescopic cylinder 303a passes through the horizontal plate 302c.

[0079] Reference Figure 8 The bottom of the output shaft 303b is provided with a connecting plate 303c, and the bottom of both ends of the connecting plate 303c is provided with a hanging shaft 303d, and the hanging shaft 303d is provided with a second annular groove 303e.

[0080] The testing table 300 is also equipped with a bracket 304, and the rotary cylinder 302 is placed on the bracket 304.

[0081] The inspection table 301a is provided with an inspection hole, which is connected to the internal space of the test box 301. The test box 301 uses the existing technology to perform the test, and moves the flange 500 to be placed and pressed against the inspection hole to perform a sealing test.

[0082] It should be noted that both the inspection conveyor belt 100 and the discharge conveyor belt 400 are driven by motors via rollers, which are not shown in the figure.

[0083] Furthermore, refer to Figure 2 The first shelf 101 includes a first column tube 101a and a first insert shaft 101b. A first mounting plate 101c is provided on the first column tube 101a, and a first insertion hole 101d is provided on the first mounting plate 101c.

[0084] The first insert shaft 101b is embedded in the first insert hole 101d.

[0085] Two first insertion holes 101d are evenly distributed on the first mounting plate 101c, and a fastener 200 is provided at each first insertion hole 101d.

[0086] Furthermore, refer to Figure 3 The bottom of the first insertion shaft 101b is provided with a first limiting plate 101e, and a first spring 101f is provided on the first limiting plate 101e to connect the first step plate 101c;

[0087] A first annular groove 101g is provided on the first insert shaft 101b, and a shaft groove 101h is provided at the end of the first annular groove 101g.

[0088] An embedded shaft 101j is provided in the shaft hole 101h, and a limiting shaft 101k is provided at the end of the embedded shaft 101j; the embedded shaft 101j is connected to the bottom of the shaft groove 101h through a second spring 101m.

[0089] The radius of the limiting shaft 101k is smaller than that of the first insert shaft 101b. The size of the limiting shaft 101k is the same as that of the mounting hole 501 on the flange 500, and also the same as that of the hanging shaft 303d.

[0090] Reference Figure 4 and Figure 5 The fastener 200 includes a fastening block 201 and a pair of clamping blocks 202. One end of the fastening block 201 is provided with a first circular groove 201a, and the other end of the fastening block 201 is provided with a second circular groove 201b. The first circular groove 201a and the second circular groove 201b are coaxial and communicate with each other.

[0091] The fixing block 201 is also provided with a first square groove 201c, the side wall of the first circular groove 201a is provided with a first through groove 201d communicating with the first square groove 201c, and the side wall of the second circular groove 201b is provided with a second through groove 201e communicating with the first square groove 201c.

[0092] The clamping block 202 is placed inside the fixing block 201.

[0093] The size of the second circular groove 201b is larger than the size of the first circular groove 201a, and the size of the first circular groove 201a is the same as the size of the limiting shaft 101k.

[0094] The dimensions of the second circular groove 201b are the same as those of the first insert shaft 101b.

[0095] Reference Figure 6 The clamping block 202 includes a side plate 202a and a first clamping plate 202b and a second clamping plate 202c disposed at both ends of the side plate 202a. The side plate 202a is embedded in the first square groove 201c, the first clamping plate 202b is embedded in the first through groove 201d, and the second clamping plate 202c is embedded in the second through groove 201e.

[0096] The first clamping plate 202b is provided with a first arc hole 202d, and a first chamfer 202e is provided on the upper side of the first arc hole 202d;

[0097] The second clamping plate 202c is provided with a second arc hole 202f, and a second chamfer 202g is provided on the lower side of the second arc hole 202f.

[0098] It should be noted that the size of the second arc hole 202f is larger than that of the first arc hole 202d. The first clamping plate 202b is used to clamp and connect the hanging shaft 303d, and the second clamping plate 202c is used to clamp and connect the first insert shaft 101b.

[0099] The clamping block 202 also includes a reset plate 202h, which is connected to the first clamping plate 202b and the second clamping plate 202c; the fixing block 201 is also provided with a second square groove 201f, in which the reset plate 202h is embedded and connected by a third spring 202j.

[0100] The third spring 202j tends to bring the two clamping blocks 202 into contact, that is, to hug each other in the middle.

[0101] It should be noted that the second square groove 201f is the same as the second through groove 201e and the first through groove 201d. Furthermore, the second square groove 201f and the first square groove 201c are located on the adjacent side of the clamping block 202.

[0102] The detection process of this invention includes:

[0103] After being forged, flange 500 is placed on the first shelf 101 of inspection conveyor belt 100. In its initial state, refer to Figure 2 The first insertion shaft 101b is located in the first insertion hole 101d, and the fixing block 201 is placed on the first mounting plate 101c and sleeved on the first insertion shaft 101b; see reference Figure 7 The second clamping plate 202c is embedded in the first annular groove 101g, so that the fixing plate 200 is connected to the first insert shaft 101b as a whole, and the limiting shaft 101k passes through the first circular groove 201a. The position of the first clamping plate 202b corresponds to the insert shaft 101j.

[0104] The flange 500 to be inspected is placed on the first support platform 101, and the limiting shaft 101k is inserted into the mounting hole 501 of the flange 500 to fix the flange and prevent it from shaking, slipping, or causing wear or bumps.

[0105] After the inspection conveyor belt 100, which holds the flange 500, conveys the flange 500 forward into position, it can be controlled by a limit switch. The rotary cylinder 302a drives the horizontal plate 302c to rotate, positioning the output shaft 303b directly above the flange 500. The hanging shaft 303d aligns with the first insertion hole 101d. Then, the telescopic cylinder 303a controls the output shaft 303b and the hanging shaft 303d to descend as a whole. The hanging shaft 303d contacts the limit shaft 101k and pushes the limit shaft 101k downwards. The limit shaft 101k first contacts the first chamfer 202e and pushes the two clamping blocks 202 to both sides. The clamping plate 202c leaves the first annular groove 101g, and then the limiting shaft 101k and the first insert shaft 101b are pushed down at the same time. The first insert shaft 101b moves to the position below the second clamping plate 202c, and the limiting shaft 101k moves to the position below the first clamping plate 202b. At the same time, the hanging shaft 303d corresponds to the position of the first clamping plate 202b. It continues to move to the position of the second annular groove 303e, which corresponds to the first clamping plate 202b. At this time, the two clamping blocks 202 clamp and embed in the second annular groove 303e, and are connected to the hanging shaft 303d. At the same time, the connection between the fixing member 200 and the first insert shaft 101b is released.

[0106] Then, the entire hanging shaft 303d is lifted, and the flange 500 is lifted off the fixed block 201. The rotating cylinder 302a is driven to move the flange 500 above the inspection table 301a, which is a column-tube structure. The flange 500 is then lowered and pressed against the inspection table 301a. The sealing performance of the flange 500 is checked by applying pressure and observing for any air leaks.

[0107] After the inspection is completed, continue to drive the rotary cylinder 302a to move the flange 500 above the discharge belt 400, and place the flange 500 on the second support platform 401.

[0108] It should be noted that, referring to Figure 9 The second shelf 401 includes a second column tube 401a and a second insert shaft 401b. A second mounting plate 401c is provided on the second column tube 401a. A second insertion hole 401d is provided on the second mounting plate 401c. The second insert shaft 401b is embedded in the second insertion hole 401d. A second limiting plate 401e is provided at the bottom of the second insert shaft 401b. A fourth spring 401f is provided on the second limiting plate 401e and connected to the second mounting plate 401c. A third annular groove 401g is provided on the second insert shaft 401b.

[0109] The dimensions of the second insert shaft 401b are the same as those of the first insert shaft 101b.

[0110] Specifically, after the flange 500 is aligned with the second support platform 401, the telescopic cylinder 303a controls the flange 500 to descend as a whole, causing the second insert shaft 401b to enter the second circular groove 201b and contact the second chamfer 202g, pushing the two clamping blocks 202 to both sides. The first clamping plate 202b is released from the fixation of the hanging shaft 303d, and the flange 500 and the fixing member 200 fall as a whole. During the falling process, the hanging shaft 303d moves above the first clamping plate 202b, and the second clamping plate 202c is embedded in the third annular groove 401g when it aligns with the third annular groove 401g, thus completing the fixation.

[0111] Similarly, in order to further fix the flange 500 on the second support platform 401, a structure of embedded shaft and limiting shaft can also be set on the second insert shaft 401b. The principle of use is the same, so it will not be described again.

[0112] Since the falling distance is not large and the outer layer of the fixing block 201 is a flexible rubber layer, it will not damage the flange 500.

[0113] It should be noted that the elastic coefficient of the first spring 101f is less than that of the second spring 101m. Therefore, after the first insert shaft 101b is no longer restricted by the second clamping plate 202c, the first insert shaft 101b can move downward together with the limiting shaft 101k.

[0114] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0115] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An inspection device for flange valve body forgings, characterized in that: include The inspection conveyor (100) is provided with a first support platform (101) and a fastener (200) is provided on the first support platform (101). The testing station (300) includes a testing box (301), a rotating component (302), and a lifting component (303). The rotating component (302) is placed on the testing box (301), and the lifting component (303) is placed on the rotating component (302). The discharge belt (400) is provided with a second support platform (401). The fastener (200) includes a fixing block (201) and a pair of clamping blocks (202). One end of the fixing block (201) is provided with a first circular groove (201a) facing inward, and the other end of the fixing block (201) is provided with a second circular groove (201b) facing inward. The first circular groove (201a) and the second circular groove (201b) are coaxial and communicate with each other. The fixing block (201) is also provided with a first square groove (201c), the side wall of the first round groove (201a) is provided with a first through groove (201d) communicating with the first square groove (201c), and the side wall of the second round groove (201b) is provided with a second through groove (201e) communicating with the first square groove (201c); The clamping block (202) includes a side plate (202a) and a first clamping plate (202b) and a second clamping plate (202c) disposed at both ends of the side plate (202a). The side plate (202a) is embedded in the first square groove (201c), the first clamping plate (202b) is embedded in the first through groove (201d), and the second clamping plate (202c) is embedded in the second through groove (201e). The first clamping plate (202b) is provided with a first arc hole (202d), and a first chamfer (202e) is provided on the upper side of the first arc hole (202d). The second clamping plate (202c) is provided with a second arc hole (202f), and a second chamfer (202g) is provided on the lower side of the second arc hole (202f); The first shelf (101) includes a first column tube (101a) and a first insertion shaft (101b). A first mounting plate (101c) is provided on the first column tube (101a), and a first insertion hole (101d) is provided on the first mounting plate (101c). The first insert shaft (101b) is fitted into the first insert hole (101d); The first insertion shaft (101b) is provided with a first limiting plate (101e) at its bottom, and a first spring (101f) is provided on the first limiting plate (101e) to connect to the first mounting plate (101c). The first insert shaft (101b) is provided with a first annular groove (101g), and the end of the first annular groove (101g) is provided with a shaft groove (101h). An embedded shaft (101j) is provided in the shaft groove (101h), and a limiting shaft (101k) is provided at the end of the embedded shaft (101j); the embedded shaft (101j) is connected to the bottom of the shaft groove (101h) by a second spring (101m).

2. The flange valve body forging inspection equipment according to claim 1, characterized in that: The clamping block (202) further includes a reset plate (202h), which is connected to the first clamping plate (202b) and the second clamping plate (202c). The fixing block (201) is also provided with a second square groove (201f), and the reset plate (202h) is embedded in the second square groove (201f) and connected by a third spring (202j).

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