Hardness detection device for valve shell machining

Abstract

The invention relates to the technical field of hardness detection, in particular to a hardness detection device for valve casing machining, which comprises a hardness detector, a supporting table and a test pressure head are arranged on the hardness detector, a mounting groove and a first strip-shaped groove are formed in the supporting table, an adjusting plate is slidably mounted in the mounting groove, and a second strip-shaped groove is formed in the first strip-shaped groove. A U-shaped frame is arranged at the top end of the adjusting plate, the two ends of the U-shaped frame are fixedly connected with the two sides of the top end of the adjusting plate through bolts, a first clamping mechanism is arranged on the adjusting plate and is in sliding fit with the first strip-shaped groove, and a second clamping mechanism is arranged on the U-shaped frame and is in sliding fit with the second strip-shaped groove. By means of the valve shell hardness detection device, the problem that in the hardness detection process of a valve shell before machining, due to the fact that detection points are not standard, the hardness conditions of all areas of valve shell raw materials cannot be comprehensively reflected, and therefore accurate evaluation of the overall performance of the valve shell is affected is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of hardness detection, and more specifically, to a hardness detection device for valve shell processing. Background Art

[0002] In the processing of valve shells, hardness testing is a crucial link. The hardness of the valve shell is directly related to its wear resistance, corrosion resistance and overall performance during use. Therefore, it is particularly important to conduct accurate hardness testing on the raw materials of the valve shell before processing. At present, hardness testing mainly relies on hardness testing equipment such as Rockwell hardness tester.

[0003] However, in the existing hardness testing process, there is a significant technical problem: the measuring points are not standardized. Specifically, when conducting hardness testing, testers often select measuring points randomly, resulting in uneven distribution of measuring points. This random measurement point selection method is not only inefficient, but also easily leads to inaccurate test data. The randomly selected measuring points are partially concentrated and partially scattered, and cannot fully reflect the hardness of various areas of the valve housing material, thereby affecting the accurate evaluation of the overall performance of the valve housing.

[0004] In order to solve the above problems, a hardness detection device for valve housing machining is proposed. Summary of the invention

[0005] In view of the problems existing in the prior art, the present invention provides a hardness detection device for valve casing processing to solve the problem mentioned in the background technology that during the hardness detection process of the valve casing before processing, the hardness of each area of ​​the valve casing raw material cannot be fully reflected due to non-standard measuring points, thus affecting the accurate evaluation of the overall performance of the valve casing.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hardness detection device for valve housing processing, comprising a hardness detector, and the hardness detector is provided with a support platform and a test pressure head, the support platform is provided with a mounting groove and a No. 1 strip groove, and an adjustment plate is slidably installed in the mounting groove, a U-shaped frame is provided at the top of the adjustment plate, and the two ends of the U-shaped frame are fixedly connected with the two sides of the top of the adjustment plate by bolts; The adjustment plate is provided with a No. 1 clamping mechanism, and the No. 1 clamping mechanism is slidably matched with the No. 1 strip groove, and the U-shaped frame is provided with a No. 2 clamping mechanism, and the No. 2 clamping mechanism and the No. 1 clamping mechanism are coaxially corresponding; The first clamping mechanism includes an elastic telescopic component arranged on the adjustment plate, a rotating component arranged on the top of the elastic telescopic component, and a fixed-point angle component arranged on the rotating component; The U-shaped frame is provided with a second strip groove, and the second strip groove corresponds to the avoidance test pressure head.

[0007] The present invention is further configured such that the elastic telescopic assembly includes a telescopic sleeve arranged on the adjustment plate, a push spring arranged in the telescopic sleeve, and a telescopic column movably mounted on the telescopic sleeve; One end of the push spring abuts against the adjustment plate, and the other end of the push spring abuts against one end of the push telescopic column, and the rotating assembly is arranged at one end of the telescopic column away from the push spring.

[0008] The present invention is further configured such that the rotating assembly comprises a No. 1 rotating disc arranged on the telescopic column, and a No. 1 rubber pad arranged on the No. 1 rotating disc; The first turntable and the end of the telescopic column away from the push spring are rotatably sleeved, and the first rubber pad is arranged at the end of the first turntable away from the telescopic column.

[0009] The present invention is further configured such that a spring groove is provided at one end of the No. 1 turntable away from the No. 1 rubber pad, and the fixed-point angle component is arranged in the spring groove.

[0010] The present invention is further configured such that the fixed-point angle assembly includes a return spring arranged in the spring groove, and a positioning column movably inserted in the spring groove.

[0011] The present invention is further configured such that a plurality of positioning holes are provided in a circular array at the top end of the telescopic sleeve, and the positioning holes and the positioning posts are matched and plugged.

[0012] The present invention is further configured such that a spherical surface is provided at one end of the positioning column away from the return spring, and a wedge-shaped surface is provided at the top end of the positioning hole.

[0013] The present invention is further configured such that a threaded tube is provided on the U-shaped frame, and the threaded tube is coaxial with the first turntable; The No. 2 clamping mechanism comprises a threaded rod arranged on the threaded tube, and a No. 2 turntable arranged at the lower end of the threaded rod, and a No. 2 rubber pad is arranged at the bottom end of the No. 2 turntable.

[0014] The present invention is further configured such that a tooth groove is provided at the bottom end of the adjustment plate, and the tooth groove is arranged in a linear array along the length direction of the adjustment plate; A clamping mechanism is provided at one end of the bottom of the installation groove, and the clamping mechanism is clamped and matched with the tooth groove.

[0015] The present invention is further configured such that a receiving groove is provided at one end of the bottom of the installation groove, and the clamping mechanism is arranged in the receiving groove; The clamping mechanism comprises a compression spring arranged in the receiving groove, and a clamping block movably arranged in the receiving groove and matched with the tooth groove.

[0016] Compared with the prior art, the present invention provides a hardness detection device for valve housing machining, which has the following beneficial effects: 1. The present invention adopts the coaxial arrangement of the No. 1 clamping mechanism and the No. 2 clamping mechanism, combined with the synergistic effect of the elastic telescopic component and the rotating component, so that the metal block to be tested can rotate around its axis during the detection process, so that the test pressure head forms an annular point detection on the metal block. This distribution of measuring points can fully cover all areas of the metal block, avoiding the problems of uneven distribution of measuring points and randomness of points in the traditional detection method, thereby significantly improving the accuracy and comprehensiveness of the hardness test data. At the same time, through the setting of the fixed-point angle component, the metal block can easily realize the rapid switching of equal-angle measuring points during the detection process, so that the distribution of the measuring points is more uniform, thereby improving the comprehensiveness and accuracy of the detection data.

[0017] 2. In the present invention, the inspector can flexibly adjust the diameter of the measuring point ring array according to the different sizes of the valve housing raw metal blocks. This function is achieved by sliding the adjustment plate in the installation groove, so that the device can be suitable for the detection needs of metal blocks of various sizes. By adjusting the diameter of the measuring point ring, the present invention ensures that no matter what the size of the metal block is, all areas thereof can be uniformly and comprehensively detected, which not only improves the accuracy and reliability of the detection, but also enhances the versatility and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of a hardness testing device for valve housing processing.

[0019] Figure 2 It is a structural schematic diagram of the No. 1 clamping mechanism on the adjustment plate and the No. 2 clamping mechanism on the U-shaped frame.

[0020] Figure 3 for Figure 2 Enlarged structural diagram at A in the middle.

[0021] Figure 4 This is a schematic diagram of the exploded structure of the No. 1 clamping mechanism.

[0022] Figure 5 This is a schematic diagram of the exploded structure of turntable No. 1 and fixed-point angle components.

[0023] Figure 6 It is the structural schematic diagram of the No. 2 clamping mechanism.

[0024] Figure 7 It is a structural schematic diagram of the support platform.

[0025] Figure 8 It is a schematic diagram of the partial cross-sectional structure of the support platform.

[0026] Fig. 9 for Figure 8 Enlarged structural diagram at B in the middle.

[0027] In the figure: 1. Hardness tester; 2. Support table; 201. Mounting slot; 202. No. 1 strip slot; 203. Storage slot; 3. Test pressure head; 4. Adjustment plate; 401. Tooth slot; 5. U-shaped frame; 501. No. 2 strip slot; 502. Threaded pipe; 6. No. 1 clamping mechanism; 7. No. 2 clamping mechanism; 701. Threaded rod; 702. No. 2 turntable; 703. No. 2 rubber pad; 8. Elastic telescopic component ;801, telescopic sleeve;802, push spring;803, telescopic column;804, positioning hole;805, wedge surface;9, rotating assembly;901, turntable No. 1;902, rubber pad No. 1;903, spring groove;10, fixed-point angle assembly;1001, reset spring;1002, positioning column;1003, spherical surface;11, clamping mechanism;1101, extrusion spring;1102, clamping block. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0030] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0031] For examples, see Figure 1 - Fig. 9 A hardness testing device for valve housing processing, comprising a hardness tester 1, and a support platform 2 and a test pressure head 3 are arranged on the hardness tester 1, a mounting groove 201 and a No. 1 strip groove 202 are opened on the support platform 2, and an adjustment plate 4 is slidably installed in the mounting groove 201, a U-shaped frame 5 is arranged at the top of the adjustment plate 4, and the two ends of the U-shaped frame 5 are fixedly connected with the two sides of the top of the adjustment plate 4 by bolts; A No. 1 clamping mechanism 6 is disposed on the adjustment plate 4, and the No. 1 clamping mechanism 6 is slidably matched with the No. 1 strip groove 202, and a No. 2 clamping mechanism 7 is disposed on the U-shaped frame 5, and the No. 2 clamping mechanism 7 and the No. 1 clamping mechanism 6 are coaxially corresponding; The first clamping mechanism 6 includes an elastic telescopic component 8 disposed on the adjustment plate 4, a rotating component 9 disposed on the top of the elastic telescopic component 8, and a fixed-point angle component 10 disposed on the rotating component 9; A second strip groove 501 is formed on the U-shaped frame 5 , and the second strip groove 501 corresponds to the avoidance test pressure head 3 .

[0032] The hardness tester 1, the support platform 2 and the test pressure head 3 are Rockwell hardness testers in the prior art. The test pressure head 3 is located directly above the support platform 2. The valve housing raw metal block to be tested is placed on the support platform 2 and then the height of the support platform 2 is adjusted by the lifting mechanism, so that the test pressure head 3 can perform hardness testing on the metal block. In the present invention, the mounting groove 201 is opened through the support platform 2, and the mounting groove 201 is connected to the No. 1 strip groove 202, wherein the No. 1 strip groove 202 is located on one side of the center position of the mounting groove 201, the adjustment plate 4 is movably inserted into the mounting groove 201, and both ends of the adjustment plate 4 are located outside the mounting groove 201. After the two ends of the U-shaped frame 5 are fixedly connected to the two sides of the top of the adjustment plate 4 by bolts, the U-shaped frame 5 spans above the support platform 2.

[0033] Specifically, when testing the valve housing raw metal block to be tested, the metal block is placed in the middle position of the U-shaped frame 5 and the support platform 2, wherein the metal block needs to be located between the No. 1 clamping mechanism 6 and the No. 2 clamping mechanism 7, and the metal block also needs to be located directly below the test pressure head 3. At this time, by adjusting the No. 2 clamping mechanism 7, the distance between the No. 1 clamping mechanism 6 and the No. 2 clamping mechanism 7 becomes smaller, thereby clamping the metal block. At this time, according to the size of the metal block, the distance between the No. 1 clamping mechanism 6 and the No. 2 clamping mechanism 7 and the axis of the test pressure head 3 is adjusted so that When the metal block is clamped by the No. 1 clamping mechanism 6 and the No. 2 clamping mechanism 7 and the measuring points are switched by rotating the rotating component 9, the measuring points can be more evenly distributed on the metal block, so that the hardness test data is more accurate. Otherwise, if the metal block is large and the diameter of the circular distribution of the measuring points is small, then the test data will be relatively concentrated, and its multiple sets of data will have poor reference value for the entire metal block. It should be noted that the adjusted spacing needs to ensure that the clamped metal block is located directly below the test pressure head 3 when it rotates.

[0034] Furthermore, in the initial state of the No. 1 clamping mechanism 6, under the action of the elastic telescopic component 8, its top end protrudes from the plane of the top of the support platform 2, and under the push of the No. 2 clamping mechanism 7, the metal block compresses the elastic telescopic component 8, so that the rotating component 9 and the elastic telescopic component 8 are both located inside the No. 1 strip groove 202, and the bottom surface of the metal block fits the top of the support platform 2. At this time, pressure is applied to the metal block by the test press head 3 of the hardness tester 1, and the magnitude of the force applied by the test press head 3 and the depth of the indentation produced on the metal block are recorded.

[0035] When the test of the measuring point is completed and it is necessary to switch the measuring point, the No. 2 clamping mechanism 7 is adjusted upward so that the elastic telescopic component 8 can restore the elastic force, thereby pushing the metal block upward so that the bottom surface of the metal block is separated from the top of the support platform 2. It should be noted that although the No. 2 clamping mechanism 7 is adjusted upward, the No. 1 clamping mechanism 6 and the No. 2 clamping mechanism 7 still have a firm clamping force on the metal block. At this time, the metal block is rotated, and the metal block is rotated at an angle through the rotating component 9 to switch the measuring point. At the same time, through the setting of the fixed-point angle component 10, a clicking sound will be made when it is rotated to a certain angle, thereby reminding that the measuring point position has been switched. At this time, the No. 2 clamping mechanism 7 is adjusted downward again, so that the metal block moves down to fit the top of the support platform 2, and the hardness test of the measuring point is performed again.

[0036] By rotating the metal block for multiple measurement point detections, the measurement points are arranged in a circular array, and the diameter of the measurement point circular array can be achieved by moving the adjustment plate 4, so that appropriate circular array measurement point detection can be performed according to the metal blocks of different sizes to be tested, thereby improving the hardness test data of the metal block. The elastic telescopic component 8 includes a telescopic sleeve 801 arranged on the adjustment plate 4, a push spring 802 arranged in the telescopic sleeve 801, and a telescopic column 803 movably mounted on the telescopic sleeve 801; One end of the push spring 802 abuts against the adjustment plate 4 , and the other end of the push spring 802 abuts against one end of the push telescopic column 803 . The rotating assembly 9 is disposed at one end of the telescopic column 803 away from the push spring 802 .

[0037] The telescopic sleeve 801 is welded to the top of the adjustment plate 4, and its diameter matches the width of the No. 1 strip groove 202. Under the action of the push spring 802, the telescopic column 803 drives the rotating component 9 to protrude from the No. 1 strip groove 202, so that when the metal block placed on the rotating component 9 needs to switch the measuring point, the metal block rotates around the clamping axis of the No. 1 clamping mechanism 6 and the No. 2 clamping mechanism 7 as the center, thereby switching the position of the metal block located under the test pressure head 3. After the metal block that rotates to switch the measuring point is detected, the detected measuring points form an annular circle, thereby obtaining the detection data of each position direction on the metal block, which makes its detection data more valuable for recording.

[0038] Among them, the pushing spring 802 drives the rotating component 9 to protrude from the No. 1 strip groove 202 and is located above the support platform 2, so that when the metal block switches the measuring point, the metal block and the top of the support platform 2 are separated, so that except for the clamping of the No. 1 clamping mechanism 6 and the No. 2 clamping mechanism 7, the rest of the metal block is suspended in the air, making it easier to rotate and adjust the angle.

[0039] The rotating assembly 9 includes a first rotating disc 901 disposed on the telescopic column 803, and a first rubber pad 902 disposed on the first rotating disc 901; The first turntable 901 and the end of the telescopic column 803 away from the push spring 802 are rotatably sleeved, and the first rubber pad 902 is arranged on the end of the first turntable 901 away from the telescopic column 803.

[0040] A spring slot 903 is formed at one end of the first rotating disk 901 away from the first rubber pad 902 , and the fixed-point angle assembly 10 is disposed in the spring slot 903 .

[0041] The maximum diameter of the first turntable 901 is the same as the outer diameter of the telescopic sleeve 801, so that when the second clamping mechanism 7 is adjusted to be close to the first turntable 901, it pushes the metal block downward, so that the first turntable 901 is retracted into the first strip groove 202 along with the telescopic column 803. It should be noted that in the initial state, when the push spring 802 pushes the telescopic column 803 to move up to the highest point, although the top of the first turntable 901 protrudes from the plane at the top of the support platform 2, the first turntable 901 is sleeved on the telescopic column 803. The bottom end of 803 is lower than the plane of the top of the support platform 2 and is located in the No. 1 strip groove 202. This is mainly to ensure that when the No. 2 clamping mechanism 7 is adjusted, the metal block is pressed down to ensure that the No. 1 turntable 901 can smoothly enter the No. 1 strip groove 202. If the bottom end of the No. 1 turntable 901 also protrudes from the plane of the top of the support platform 2, then when the No. 1 turntable 901 moves downward, it will be offset, resulting in conflict with the two side walls of the No. 1 strip groove 202, and thus cannot smoothly enter the No. 1 strip groove 202.

[0042] Preferably, by setting a No. 1 rubber pad 902 on the No. 1 turntable 901, when the hardness test is performed after the metal block is clamped, the metal block and the No. 1 turntable 901 can maintain a good relative stillness, that is, when the metal block is pushed to rotate to switch the measuring point, the No. 1 turntable 901 can be driven to rotate accordingly, thereby achieving equal-angle switching through the fixed-point angle component 10, thereby improving the accuracy of the measurement data.

[0043] The fixed-point angle assembly 10 includes a return spring 1001 disposed in the spring slot 903 , and a positioning column 1002 movably inserted in the spring slot 903 .

[0044] A plurality of positioning holes 804 are formed in a circular array at the top of the telescopic sleeve 801 , and the positioning holes 804 and the positioning posts 1002 are matched and plugged.

[0045] A spherical surface 1003 is provided at one end of the positioning post 1002 away from the return spring 1001 , and a wedge-shaped surface 805 is provided at the top of the positioning hole 804 .

[0046] The fixed-point angle assembly 10 is provided with a, through the rotation of the first turntable 901 and the positioning holes of the annular array on the telescopic sleeve 801, they are sequentially clamped, so as to realize the equal-angle switching of the measuring points of the metal block clamped on the first turntable 901.

[0047] Specifically, after measuring the hardness of one point of the metal block, when it is necessary to switch the measuring point, the second clamping mechanism 7 is adjusted upward, and under the action of the push spring 802, the first turntable 901 moves up to above the top of the support table 2. When the first turntable 901 moves up, it drives the positioning column 1002 to move up from the original positioning hole 804. When the first turntable 901 moves up to the highest point, the spherical surface 1003 on the positioning column 1002 corresponds to the wedge surface 805 at the top of the positioning hole 804 and does not detach from the positioning hole 804. At this time, when the metal block is rotated to switch the measuring point , the No. 1 turntable 901 rotates, thereby driving the spherical surface 1003 of the positioning column 1002 to contact the wedge surface 805 of the positioning hole 804, so that the positioning column 1002 squeezes the reset spring 1001 to insert into the spring groove 903, and the spherical surface of the positioning column 1002 contacts the top of the telescopic sleeve 801 as the No. 1 turntable 901 rotates until it moves to another positioning hole 804. The rebound force of the reset spring 1001 pushes the positioning column 1002 into the positioning hole 804 and emits a click prompt sound. At this time, the equal-angle switching of the metal block measuring point is completed.

[0048] Furthermore, after the measurement point is completed, the No. 2 clamping mechanism 7 is adjusted downward again to push the metal block downward so that the No. 1 turntable 901 enters the No. 1 strip groove 202, and the bottom end of the metal block contacts the top of the support table 2. At this time, the positioning column 1002 is completely inserted into the positioning hole 804 as the No. 1 turntable 901 moves downward, and the spherical surface 1003 is located at the bottom of the positioning hole 804, which does not correspond to the wedge surface 805 on the positioning hole 804, so that the metal block cannot rotate at this time, thereby ensuring the accuracy of the measuring point position.

[0049] A threaded tube 502 is provided on the U-shaped frame 5, and the threaded tube 502 and the first turntable 901 are coaxial; The second clamping mechanism 7 includes a threaded rod 701 arranged on the threaded tube 502 , and a second turntable 702 arranged at the lower end of the threaded rod 701 , and a second rubber pad 703 is arranged at the bottom end of the second turntable 702 .

[0050] The threaded rod 701 threads through the threaded tube 502, and the No. 2 turntable 702 and the No. 2 rubber pad 703 correspond to the No. 1 turntable 901 and the No. 1 rubber pad 902, so as to clamp the metal block to be tested. Through the arrangement of the No. 1 rubber pad 902 and the No. 2 rubber pad 703, the clamped metal block and the No. 1 turntable 901 and the No. 2 turntable 702 can remain relatively still, thereby avoiding the metal block from rotating offset, so that when the No. 1 turntable 901 and the No. 2 turntable 702 rotate to switch measuring points, the measuring points can be switched at equal angles, thereby improving the accuracy of the detection data.

[0051] The bottom end of the adjustment plate 4 is provided with tooth grooves 401, and the tooth grooves 401 are arranged in a linear array along the length direction of the adjustment plate 4; A clamping mechanism 11 is disposed at one end of the bottom of the installation groove 201 , and the clamping mechanism 11 is clamped and matched with the tooth groove 401 .

[0052] A receiving groove 203 is formed at one end of the bottom of the installation groove 201, and the clamping mechanism 11 is disposed in the receiving groove 203; The clamping mechanism 11 includes a compression spring 1101 disposed in the receiving groove 203 , and a clamping block 1102 movably disposed in the receiving groove 203 and clamped and matched with the tooth groove 401 .

[0053] The adjustment plate 4 slides and adjusts in the installation groove 201, thereby adjusting the axial distance between the No. 1 clamping mechanism 6 and the No. 2 clamping mechanism 7 and the test pressure head 3, that is, adjusting the radius of the ring formed by the points to be tested on the metal block. After adjusting the radius of the ring of the measuring points on the metal block according to the size of the metal block, the clamping block 1102 and the tooth groove 401 on the adjustment plate 4 are pushed to engage under the action of the extrusion spring 1101 to achieve locking of the adjusted position. It should be noted that the cross-section of the tooth groove 401 and the clamping block 1102 is a triangle. The triangular setting allows the adjustment plate 4 to be directly pulled when moving and adjusting, and the operation is more convenient.

[0054] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described one by one here. In the above, welding is preferred for all fixed connections. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and deformations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A hardness detection device for valve housing processing, characterized in that: The hardness tester (1) comprises a support platform (2) and a test pressure head (3) arranged on the hardness tester (1), a mounting groove (201) and a first strip groove (202) being provided on the support platform (2), an adjustment plate (4) being slidably mounted in the mounting groove (201), a U-shaped frame (5) being arranged at the top of the adjustment plate (4), and two ends of the U-shaped frame (5) being fixedly connected to two sides of the top of the adjustment plate (4) by bolts; The adjustment plate (4) is provided with a No. 1 clamping mechanism (6), and the No. 1 clamping mechanism (6) and the No. 1 strip groove (202) are slidably matched, and the U-shaped frame (5) is provided with a No. 2 clamping mechanism (7), and the No. 2 clamping mechanism (7) and the No. 1 clamping mechanism (6) are coaxially corresponding; The first clamping mechanism (6) comprises an elastic telescopic component (8) arranged on the adjustment plate (4), a rotating component (9) arranged on the top of the elastic telescopic component (8), and a fixed-point angle component (10) arranged on the rotating component (9); The U-shaped frame (5) is provided with a second strip groove (501), and the second strip groove (501) corresponds to the avoidance test pressure head (3).

2. A valve housing machining hardness detection device according to claim 1, characterized in that: The elastic telescopic component (8) comprises a telescopic sleeve (801) arranged on the adjustment plate (4), a push spring (802) arranged in the telescopic sleeve (801), and a telescopic column (803) movably mounted on the telescopic sleeve (801); One end of the push spring (802) contacts the adjustment plate (4), and the other end of the push spring (802) contacts one end of the push telescopic column (803). The rotating assembly (9) is arranged at one end of the telescopic column (803) away from the push spring (802).

3. A hardness detection device for valve housing machining according to claim 2, characterized in that: The rotating assembly (9) comprises a first rotating disc (901) arranged on the telescopic column (803), and a first rubber pad (902) arranged on the first rotating disc (901); The first rotating disc (901) and one end of the telescopic column (803) away from the push spring (802) are rotatably sleeved, and the first rubber pad (902) is arranged at one end of the first rotating disc (901) away from the telescopic column (803).

4. A valve housing machining hardness detection device according to claim 3, characterized in that: A spring groove (903) is provided at one end of the first rotating disc (901) away from the first rubber pad (902), and the fixed-point angle component (10) is arranged in the spring groove (903).

5. A valve housing machining hardness detection device according to claim 4, characterized in that: The fixed-point angle assembly (10) comprises a return spring (1001) disposed in the spring slot (903), and a positioning column (1002) movably inserted in the spring slot (903).

6. A valve housing machining hardness detection device according to claim 5, characterized in that: A plurality of positioning holes (804) are provided in a circular array at the top end of the telescopic sleeve (801), and the positioning holes (804) and the positioning posts (1002) are matched and plugged.

7. A valve housing machining hardness detection device according to claim 6, characterized in that: A spherical surface (1003) is provided at one end of the positioning column (1002) away from the return spring (1001), and a wedge-shaped surface (805) is provided at the top end of the positioning hole (804).

8. A valve housing machining hardness detection device according to claim 3, characterized in that: The U-shaped frame (5) is provided with a threaded tube (502), and the threaded tube (502) and the first turntable (901) are coaxial; The second clamping mechanism (7) comprises a threaded rod (701) arranged on the threaded tube (502), and a second rotating disk (702) arranged at the lower end of the threaded rod (701), and a second rubber pad (703) is arranged at the bottom end of the second rotating disk (702).

9. A valve housing machining hardness detection device according to claim 1, characterized in that: The bottom end of the adjustment plate (4) is provided with tooth grooves (401), and the tooth grooves (401) are arranged in a linear array along the length direction of the adjustment plate (4); A clamping mechanism (11) is provided at one end of the bottom of the installation groove (201), and the clamping mechanism (11) and the tooth groove (401) are clamped and matched.

10. A valve housing machining hardness detection device according to claim 9, characterized in that: A receiving groove (203) is provided at one end of the bottom of the installation groove (201), and the clamping mechanism (11) is arranged in the receiving groove (203); The clamping mechanism (11) comprises a compression spring (1101) disposed in the receiving groove (203), and a clamping block (1102) movably disposed in the receiving groove (203) and clamped and matched with the tooth groove (401).

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