Cone valve seat clamping tool

Abstract

The utility model discloses a cone valve seat clamping tool which comprises an expansion sleeve, a puller nut, a cone and a tightening bolt. One end of the expansion sleeve serves as an expansion end and is inserted into the cone valve seat, the other end of the expansion sleeve serves as a clamping end and is fixedly clamped on a machine tool, and a through hole penetrating through the expansion end and the clamping end is formed in the expansion sleeve in the axial direction; the puller nut is screwed on the tightening bolt in a matched mode, and the cone is arranged on the tightening bolt in a sleeving mode and located between a bolt head of the tightening bolt and the puller nut; one end of the tightening bolt is inserted into the through hole from the expansion end and penetrates through the cone valve seat, so that the conical surface of the cone abuts against the inner surface of the expansion end, and the outer surface of the expansion end abuts against the inner wall of the cone valve seat. The utility model relates to the technical field of homogenizer equipment, and can solve the problem that the conical surface of a conical valve seat is difficult to clamp and fix during processing in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of homogenizer equipment technology, and in particular to a cone valve seat clamping tool. Background Technology

[0002] Homogenizers typically operate at high pressures, so the check valves within them generally employ a cone valve structure to prevent internal leakage between the valve seat and the pump body during high-pressure production. However, because the outer surface of the cone valve seat is conical, it is difficult to clamp and fix this surface during machining on a machine tool, leading to machining difficulties and affecting the accuracy and quality of the valve seat. Therefore, a cone valve seat clamping tool is needed to solve the problem of difficulty in clamping and fixing the conical surface of the valve seat during machining in existing technologies. Summary of the Invention

[0003] The purpose of this utility model is to provide a cone valve seat clamping tool that can solve the problem of difficulty in clamping and fixing the cone surface of the cone valve seat during machining in the prior art.

[0004] This utility model is implemented as follows:

[0005] A cone valve seat clamping tool includes an expansion sleeve, a tightening nut, a cone, and a tightening bolt. One end of the expansion sleeve serves as the expansion end and is inserted into the cone valve seat. The other end of the expansion sleeve serves as the clamping end and is fixedly clamped on a machine tool. A through hole is formed axially inside the expansion sleeve, penetrating the expansion end and the clamping end. The tightening nut is screwed onto the tightening bolt. The cone is sleeved on the tightening bolt and located between the bolt head and the tightening nut. One end of the tightening bolt is inserted from the expansion end into the through hole and through the cone valve seat, so that the conical surface of the cone presses against the inner surface of the expansion end and the outer surface of the expansion end presses against the inner wall of the cone valve seat.

[0006] The cone has a conical structure, and the diameter of the end of the cone near the bolt head is larger than the diameter of the end of the cone near the nut.

[0007] The inner surface of the tightening end is a conical structure that matches the conical surface of the cone, so that the inner surface of the tightening end slides and presses against the conical surface of the cone.

[0008] The expansion sleeve has a flange in the middle, which is located between the expansion end and the clamping end, and the side of the flange near the expansion end is attached to the large end face of the cone valve seat.

[0009] The through hole located in the clamping end is an internal threaded hole that matches the tightening bolt, so that the tightening bolt is screwed into the internal threaded hole.

[0010] The through hole located within the flange forms a cavity structure, allowing the tightening nut to be movably positioned within this cavity structure when the tightening bolt is screwed into the internal threaded hole.

[0011] The connection between the cavity structure and the internal threaded hole forms a tapered section, which is a tapered structure that gradually narrows from the cavity structure to the internal threaded hole.

[0012] The clamping end has a uniform columnar structure.

[0013] Compared with the prior art, this utility model has the following advantages:

[0014] 1. This utility model has an expansion sleeve and a cone. The expansion end of the expansion sleeve is expanded and tightened in the cone valve seat under the squeezing action of the cone, so that the expansion sleeve and the cone valve seat are connected as a whole. The clamping end of the expansion sleeve can be stably clamped and fixed on the machine tool, thereby clamping and fixing the cone valve seat on the machine tool, which facilitates the processing of the cone surface of the cone valve seat and helps to improve the processing efficiency and processing quality of the cone valve seat.

[0015] 2. This utility model is equipped with an expansion sleeve with a through hole and a tightening bolt. The tightening bolt is matched and screwed into the internal thread hole of the through hole, which facilitates the tightening bolt to move into the through hole and drive the cone to move into the expansion end. This makes the extrusion force of the cone structure on the expansion end gradually increase, so as to realize the expansion end is tightened and fixed in the cone valve seat. It is simple and convenient to operate and has strong adaptability. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the cone valve seat clamping tool of this utility model.

[0017] In the figure, 1 is the expansion sleeve, 11 is the expansion end, 12 is the clamping end, 13 is the through hole, 131 is the internal thread hole, 132 is the cavity structure, 133 is the transition section, 14 is the flange, 2 is the tightening nut, 3 is the cone, 4 is the tightening bolt, and 5 is the cone valve seat. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] Please see the appendix Figure 1A cone valve seat clamping tool includes an expansion sleeve 1, a tightening nut 2, a cone 3, and a tightening bolt 4. One end of the expansion sleeve 1 serves as an expansion end 11 and is inserted into the cone valve seat 5. The other end of the expansion sleeve 1 serves as a clamping end 12 and is fixedly clamped on a machine tool. A through hole 13 is formed axially inside the expansion sleeve 1, penetrating the expansion end 11 and the clamping end 12. The tightening nut 2 is screwed onto the tightening bolt 4. The cone 3 is sleeved on the tightening bolt 4 and located between the bolt head of the tightening bolt 4 and the tightening nut 2. One end of the tightening bolt 4 is inserted from the expansion end 11 into the through hole 13 and penetrates the cone valve seat 5, so that the conical surface A of the cone 3 presses against the inner surface of the expansion end 11, and the outer surface B of the expansion end 11 presses against the inner wall of the cone valve seat 5.

[0020] Preferably, the expansion end 11 of the expansion sleeve 1 can be made of a material such as rubber with certain deformation properties and good anti-slip properties, so that the expansion end 11 can be expanded and compressed in the cone valve seat 5 under the pushing and squeezing of the cone 3, thereby making the expansion end 11 and the cone valve seat 5 reliably connected as a whole.

[0021] Preferably, the clamping end 12 can be made of hard materials such as metal, so that the clamping end 12 can be fixedly clamped on the machine tool, thereby fixing the cone valve seat 5 on the machine tool through the expansion sleeve 1, which facilitates the processing of the cone surface of the cone valve seat 5 and ensures the stability of the cone valve seat 5 during the processing.

[0022] The tightening nut 2 is screwed onto the tightening bolt 4 to fix the cone 3 onto the tightening bolt 4. As the tightening bolt 4 is inserted into the through hole 13, the cone 3 moves synchronously with the tightening bolt 4 and is inserted into the expansion end 11. The diameter of the cone surface A of the cone 3 gradually increases to tighten the expansion end 11, thereby achieving the expansion and fixation of the expansion end 11 in the cone valve seat 5.

[0023] Preferably, two top nuts 2 can be provided to ensure that the cone 3 is fixed between the bolt head of the tightening bolt 4 and the top nut 2 and moves synchronously with the tightening bolt 4.

[0024] The cone 3 has a cone-shaped structure, and the diameter of the end of the cone 3 near the bolt head of the tightening bolt 4 is larger than the diameter of the end of the cone 3 near the tightening nut 2.

[0025] As the tightening bolt 4 is inserted into the through hole 13, the cone 3 is simultaneously inserted into the through hole 13 of the expansion end 11. The diameter of the cone 3 inserted into the expansion end 11 gradually increases, and the compression on the expansion end 11 increases accordingly, thereby achieving the expansion effect of the expansion end 11 on the cone valve seat 5. This can meet different expansion force requirements and also adapt to cone valve seats 5 of different sizes.

[0026] The inner surface of the tightening end 11 is a conical structure that matches the conical surface A of the cone 3, so that the inner surface of the tightening end 11 slides and presses against the conical surface A of the cone 3.

[0027] As the cone 3 is inserted into the through hole 13 of the expansion end 11, the cone surface A slides relative to the hole wall of the through hole 13 in the expansion end 11, and the cone 3 with its gradually increasing diameter squeezes the expansion end 11, causing the expansion end 11 to gradually expand and tighten in the cone valve seat 5.

[0028] The expansion sleeve 1 has a flange 14 formed in the middle. The flange 14 is located between the expansion end 11 and the clamping end 12, and the side of the flange 14 near the expansion end 11 is attached to the large end face of the cone valve seat 5.

[0029] By attaching the flange 14 to the large end face of the cone valve seat 5, the connection stability between the expansion sleeve 1 and the cone valve seat 5 can be improved, which is beneficial for machining the cone surface of the cone valve seat 5.

[0030] The through hole 13 located in the clamping end 12 is an internal threaded hole 131 that matches the tightening bolt 4, so that the tightening bolt 4 is screwed into the internal threaded hole 131.

[0031] The threaded drive between the internal threaded hole 131 and the tightening bolt 4 causes the tightening bolt 4 to gradually move into the through hole 13, thereby achieving the tightening of the expansion end 11 within the cone valve seat 5. Furthermore, the thread engagement between the internal threaded hole 131 and the tightening bolt 4 ensures the tightening effect of the expansion end 11, preventing it from easily dislodging from the cone valve seat 5, thus guaranteeing reliable clamping of the cone valve seat 5 on the machine tool.

[0032] The through hole 13 located in the flange 14 forms a cavity structure 132, so that when the tightening bolt 4 is screwed into the internal threaded hole 131, the top nut 2 is movably located in the cavity structure 132.

[0033] The cavity structure 132 is used to provide space for the movement of the tightening nut 2, so as to ensure that the tightening nut 2 moves synchronously within the cavity structure 132 as the tightening bolt 4 is turned.

[0034] The connection between the cavity structure 132 and the internal threaded hole 131 is formed with a tapered section 133, which is a tapered structure that gradually narrows from the cavity structure 132 to the internal threaded hole 131.

[0035] By narrowing the diameter of the tapered section 133, the movement of the top nut 2 is limited, thus preventing the bolt 4 from being screwed in too much and causing excessive expansion of the expansion end 11 in the cone valve seat 5, thereby preventing damage to the cone valve seat 5.

[0036] The clamping end 12 has a uniform columnar structure, such as cylindrical or rectangular columnar, which facilitates clamping and fixing on the machine tool.

[0037] Please see the appendix Figure 1 The clamping method of the cone valve seat 5 in this utility model is as follows:

[0038] Insert the expansion end 11 of the expansion sleeve 1 into the cone valve seat 5 from the large end of the cone valve seat 5, and make the flange 14 of the expansion sleeve 1 fit against the large end face of the cone valve seat 5.

[0039] Place the cone 3 onto the threaded section of the tightening bolt 4, and screw the nut 2 onto the threaded section of the tightening bolt 4. Rotate the nut 2 until the cone 3 is pressed between the bolt head of the tightening bolt 4 and the nut 2.

[0040] Insert the tightening bolt 4 into the through hole 13 from the small end of the cone valve seat 5, and screw it into the internal thread hole 131, so that the cone 3 is placed in the expansion end 11. As the tightening bolt 4 is rotated and screwed in, the cone 3 is pushed into the expansion end 11, so that the conical surface A of the cone 3 presses against the inner surface of the expansion end 11 through the gradually increasing diameter, thereby pressing the outer surface B of the expansion end 11 against the inner wall of the cone valve seat 5, and tightening the expansion end 11 of the expansion sleeve 1 and the cone valve seat 5 to form a whole.

[0041] By fixing the clamping end 12 of the expansion sleeve 1 to the machining tool, the cone valve seat 5 can be stably clamped on the machining tool, which facilitates the cone surface machining of the cone valve seat 5.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A cone valve seat clamping tool, characterized in that: The assembly includes a shrink sleeve (1), a tightening nut (2), a cone (3), and a tightening bolt (4). One end of the shrink sleeve (1) serves as the shrinking end (11) and is inserted into the cone valve seat (5). The other end of the shrink sleeve (1) serves as the clamping end (12) and is fixedly clamped on the machine tool. A through hole (13) is formed axially inside the shrink sleeve (1) through the shrinking end (11) and the clamping end (12). The tightening nut (2) is screwed on to match the fit. On the tightening bolt (4), the cone (3) is fitted on the tightening bolt (4) and located between the bolt head of the tightening bolt (4) and the top nut (2); one end of the tightening bolt (4) is inserted from the expansion end (11) into the through hole (13) and through the cone valve seat (5), so that the conical surface of the cone (3) presses against the inner surface of the expansion end (11) and the outer surface of the expansion end (11) presses against the inner wall of the cone valve seat (5).

2. The cone valve seat clamping tool according to claim 1, characterized in that: The cone (3) has a cone-shaped structure. The diameter of the end of the cone (3) near the bolt head of the tightening bolt (4) is larger than the diameter of the end of the cone (3) near the tightening nut (2).

3. The cone valve seat clamping tool according to claim 1, characterized in that: The inner surface of the tightening end (11) is a conical structure that matches the conical surface of the cone (3), so that the inner surface of the tightening end (11) slides and presses against the conical surface of the cone (3).

4. The cone valve seat clamping tool according to claim 1, characterized in that: The expansion sleeve (1) has a flange (14) formed in the middle. The flange (14) is located between the expansion end (11) and the clamping end (12), and the side of the flange (14) close to the expansion end (11) is attached to the large end face of the cone valve seat (5).

5. The cone valve seat clamping tool according to claim 4, characterized in that: The through hole (13) located in the clamping end (12) is an internal threaded hole (131) that matches the tightening bolt (4), so that the tightening bolt (4) is screwed into the internal threaded hole (131).

6. The cone valve seat clamping tool according to claim 5, characterized in that: The through hole (13) located in the flange (14) forms a cavity structure (132), so that when the tightening bolt (4) is screwed into the internal thread hole (131), the top nut (2) is movably located in the cavity structure (132).

7. The cone valve seat clamping tool according to claim 6, characterized in that: A transition section (133) is formed at the connection between the cavity structure (132) and the internal threaded hole (131). The transition section (133) is a tapered structure that gradually narrows from the cavity structure (132) to the internal threaded hole (131).

8. The cone valve seat clamping tool according to claim 1 or 4, characterized in that: The clamping end (12) has a uniform columnar structure.

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