Double-V-shaped multi-compatible floating type valve body positioning clamp
By designing a double V-shaped multi-compatible floating valve body positioning fixture, and using a combination of precision positioning blocks and floating clamping components, the problem of clamping stability and accuracy of valve bodies with irregular casting surface roundness is solved, and high-precision and stable adaptive clamping is achieved.
Patent Information
- Application Number
- CN202423115824.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-17
AI Technical Summary
Existing double V-type clamps have problems with poor clamping stability and low machining accuracy when positioning valve bodies with irregular casting surface roundness, and have high manufacturing and installation requirements.
The valve body positioning fixture adopts a double V-shaped multi-compatible floating type. Through the combination of precision positioning clamping block assembly and floating clamping assembly, adaptive clamping is achieved by using slide rails and hinge shafts. Combined with the clamping drive mechanism, it achieves precise positioning and stable clamping.
It achieves high-precision, stable, and reliable clamping of valve bodies with irregular casting surface roundness, improves machining accuracy and clamping stability, reduces wear, and enhances compatibility with various valve bodies.
Smart Images
Figure CN223544703U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of valve body positioning fixture technology, and in particular to a double V-shaped multi-compatible floating valve body positioning fixture. Background Technology
[0002] The valve body's positioning surface is a cast surface with irregular roundness. Furthermore, there are many types of valve bodies, requiring a reliable and compatible positioning fixture for precise positioning to ensure the accuracy of subsequent processes. Currently, the positioning of circular valve body workpieces mainly relies on double V-shaped clamping fixtures. This type of fixture has the following drawbacks: First, the double V-shaped fixture itself involves over-positioning; during use, one of the four V-shaped bevels will inevitably not be firmly attached to the valve body, affecting the clamping stability. Second, to maximize the positioning accuracy of the double V-shaped fixture, the machining of the two V-blocks, the machining of the connecting parts, and the installation all need to be as precise as possible, which is a challenge for manufacturing itself. The process arrangement involves machining the two V-blocks simultaneously using a single sheet rather than machining them separately. Third, the valve body itself is a cast surface with irregular roundness; if precise positioning is not achieved on one side, and both sides are mated simultaneously, the positioning error caused by the irregular roundness of the cast surface will be very large.
[0003] Therefore, how to provide a double V-shaped multi-compatible floating valve body positioning fixture that can provide a precise positioning reference and adaptively and reliably clamp the valve body, thereby improving machining accuracy, is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0004] In view of this, this utility model proposes a double V-shaped multi-compatible floating valve body positioning fixture, which aims to solve the technical problem that the above-mentioned traditional valve body positioning fixtures cannot hold valve bodies with irregular roundness of casting surface with high precision and stability.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] This utility model provides a double V-shaped multi-compatible floating valve body positioning fixture, including:
[0007] The base has a slide rail on its top surface;
[0008] A clamping assembly includes a precision positioning clamping block assembly, a floating seat assembly, and a floating clamping assembly. The precision positioning clamping block assembly and the floating seat assembly are slidably connected to a slide rail and spaced apart along the length of the slide rail. The precision positioning clamping block assembly has a V-shaped precision positioning wall near the floating seat assembly. The floating seat assembly has a hinge shaft parallel to the V-shaped precision positioning wall. The floating clamping assembly is hinged to the floating seat assembly via the hinge shaft. The floating clamping assembly has a V-shaped opening on its outer periphery. The V-shaped opening of the floating clamping assembly is arranged opposite to the V-shaped precision positioning wall of the precision positioning clamping block assembly to form a double V-shaped floating positioning clamping structure.
[0009] A clamping drive mechanism is provided, which is connected to the precision positioning clamping block assembly and the floating seat assembly to drive them to move closer to or further apart.
[0010] When clamping and positioning a valve body workpiece, the valve body positioning fixture of this invention uses the V-shaped precision positioning wall of the precision positioning clamping block assembly as the positioning reference, and the V-shaped opening of the floating clamping assembly reliably abuts against and clamps the valve body workpiece. When the V-shaped opening end of the floating clamping assembly contacts the valve body positioning surface, it can rotate around the hinge axis to provide rotational floating. When the V-shaped opening of the floating clamping assembly and the V-shaped precision positioning wall of the precision positioning clamping block assembly clamp the valve body, one side of the valve body's positioning surface abuts against the V-shaped precision positioning wall to achieve accurate positioning, and the floating clamping assembly rotates to adapt to the contour of the other side of the valve body's positioning surface, thereby achieving high-precision, stable, and reliable clamping. This invention can also achieve high-precision, stable, and reliable clamping for valve bodies with irregular casting surface roundness.
[0011] As a further improvement to the above technical solution, the floating seat assembly includes a sliding seat and a floating body; the sliding seat is slidably connected to the slide rail; the floating body is slidably connected to the sliding seat along a direction perpendicular to the length of the slide rail and parallel to the top surface of the base; the hinge shaft is vertically connected to the top of the floating body, and the floating clamping assembly is hinged to the top of the floating body through the hinge shaft.
[0012] The beneficial effects of the above technical solution are: the floating clamping assembly can rotate around the hinge axis, realizing the rotational floating degree of freedom; the floating body is slidably connected to the sliding seat, which also gives the floating clamping assembly the translational floating degree of freedom; thus, the floating clamping assembly has an adaptive, stable and reliable fitting and clamping effect on the valve body when it comes into contact with the positioning surface of the valve body. The floating clamping assembly will not cause over-positioning during the clamping process of the valve body, nor will it damage the positioning accuracy of the V-shaped precision positioning wall.
[0013] As a further improvement to the above technical solution, the sliding seat is fixed with blocks on both sides corresponding to the sliding direction of the floating body.
[0014] The beneficial effect of the above technical solution is that the blocks on both sides of the floating body limit its sliding range and prevent excessive sliding displacement from exceeding the limit.
[0015] As a further improvement to the above technical solution, the floating clamping assembly includes a V-shaped clamping arm plate and clamping wheels; the V-shaped clamping arm plate has a shaft hole in the middle of its surface; the V-shaped clamping arm plate is arranged corresponding to the top of the floating body and its shaft hole is rotatably sleeved on the hinge shaft; the clamping wheels are rotatably installed at both ends of the top surface of the V-shaped clamping arm plate along its length; the axial direction of the clamping wheels is parallel to the axial direction of the hinge shaft; the clamping wheels and the V-shaped precision positioning wall are arranged opposite to each other and spaced apart along the length of the slide rail; the outer peripheral wall of the clamping wheels extends to the V-shaped opening corresponding to the V-shaped clamping arm plate to form an adaptive rolling clamping wheel structure that can roll against the receiving valve body.
[0016] The beneficial effects of the above technical solution are: the V-shaped clamping arm plate is rotatably connected to the top of the floating body through the hinge shaft, and has the function of rotation and floating; when the clamping wheels at both ends of the top surface of the V-shaped clamping arm plate come into contact with the positioning surface of the valve body to be positioned, they can adaptively roll along the positioning surface of the valve body to be positioned, which reduces the friction and wear on the positioning surface of the valve body and improves the accuracy and stability of valve body positioning and clamping.
[0017] As a further improvement to the above technical solution, a stop pin is installed on the floating body on the side corresponding to the width direction of the V-shaped clamping arm plate to limit the rotation range of the V-shaped clamping arm plate.
[0018] The beneficial effects of the above technical solution are: by limiting the rotation range of the V-shaped clamping arm plate by using the stop pin, it is prevented from rotating too much and deviating from the working position, which can reduce unnecessary adjustments and facilitate operation.
[0019] As a further improvement to the above technical solution, the precision positioning clamping block assembly includes a second sliding seat and a positioning plate; the second sliding seat is slidably connected to the slide rail; the second sliding seat and the first sliding seat are arranged opposite to each other and spaced apart along the length of the slide rail; the positioning plate is parallel to the top surface of the base and fixed to the top of the second sliding seat; the positioning plate and the clamping wheel are arranged opposite to each other and spaced apart along the length of the slide rail; a V-shaped notch is provided on the side end of the positioning plate near the clamping wheel to form the V-shaped precision positioning wall.
[0020] As a further improvement to the above technical solution, a valve body support platform is also included. The valve body support platform is installed on the top surface of the base and located between the first sliding seat and the second sliding seat, corresponding to the V-shaped precision positioning wall and below the clamping wheel.
[0021] The beneficial effects of the above technical solution are: the valve body support platform is used to support the valve body to be clamped and positioned; it can facilitate quick clamping and arrangement, and improve processing efficiency.
[0022] As a further improvement to the above technical solution, the clamping drive mechanism includes a drive motor and a double-rotating lead screw; the double-rotating lead screw is mounted on the base and arranged parallel to the length direction of the slide rail; the double-rotating lead screw is provided with a threaded section one and a threaded section two with the opposite rotation direction to the threaded section one along its length direction; the precision positioning clamping block assembly and the floating seat assembly are connected one-to-one by threaded transmission to the threaded section one and the threaded section two of the double-rotating lead screw; the drive motor is mounted on the base and is connected to and drives the double-rotating lead screw to rotate, thereby driving and controlling the precision positioning clamping block assembly and the floating seat assembly to move closer or further apart from each other.
[0023] The beneficial effects of the above technical solution are: by driving the double-rotating lead screw to rotate forward and backward by the drive motor, the V-shaped opening of the floating clamping component and the V-shaped precision positioning wall of the precision positioning clamping block component can be driven to move closer or further away from each other through the thread transmission, so as to position, clamp or release the valve body.
[0024] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a double V-shaped multi-compatible floating valve body positioning fixture, which has the following advantages and beneficial effects:
[0025] The valve body positioning fixture of this utility model adopts a V-block on one side for precision machining and positioning, which serves as a reference, while the V-block on the other side acts as a clamping force. At the same time, in order to ensure reliable and stable clamping, the V-block on the other side is designed with a floating structure, which can rotate around the hinge axis in the plane and move laterally. To avoid unstable floating clamping, the clamping and positioning part adopts a clamping wheel to form a follower structure, which reduces wear, improves the positioning and clamping accuracy, and enhances the compatibility with various round workpieces to be clamped. Attached Figure Description
[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0027] Figure 1 A three-dimensional structural diagram of the double V-shaped multi-compatible floating valve body positioning fixture of this utility model;
[0028] Figure 2 A three-dimensional schematic diagram of the overall structure of the double V-shaped multi-compatible floating valve body positioning fixture of this utility model;
[0029] Figure 3 Another perspective view of the overall structure of the double V-shaped multi-compatible floating valve body positioning fixture of this utility model;
[0030] Figure 4 A side view of the structure of the double V-shaped multi-compatible floating valve body positioning fixture of this utility model;
[0031] Figure 5 A schematic diagram of the V-shaped clamping arm plate structure of the double V-shaped multi-compatible floating valve body positioning fixture of this utility model;
[0032] In the diagram: 1. Base; 11. Slide rail; 2. Clamping assembly; 21. Precision positioning clamping block assembly; 211. Sliding seat two; 212. Positioning plate; 2121. V-shaped precision positioning wall; 22. Floating seat assembly; 221. Sliding seat one; 2211. Guide rail; 222. Floating body; 223. Hinge shaft; 224. Stop block; 225. Stop pin; 23. Floating clamping assembly; 231. V-shaped clamping arm plate; 2311. V-shaped opening; 2312. Shaft hole; 232. Clamping wheel; 3. Clamping drive mechanism; 31. Drive motor; 32. Double-rotating lead screw; 33. Reducer; 4. Valve body support platform; 5. Valve body; 51. Positioning surface. Detailed Implementation
[0033] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0034] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0037] According to the embodiments of this utility model, such as Figures 1 to 5 As shown, the double V-shaped multi-compatible floating valve body positioning fixture includes:
[0038] The base 1 is rectangular, and two slide rails 11 are fixed on the top surface of the base 1 along the length direction. The two slide rails 11 are relatively parallel and spaced apart along the width direction of the base 1. Both slide rails 11 are linear slide rails.
[0039] The clamping assembly 2 includes a precision positioning clamping block assembly 21, a floating seat assembly 22, and a floating clamping assembly 23. Both the precision positioning clamping block assembly 21 and the floating seat assembly 22 are slidably connected to two slide rails 11 and are spaced apart along the length of the slide rails 11. The precision positioning clamping block assembly 21 has a V-shaped precision positioning wall 2121 on the side near the floating seat assembly 22. The floating seat assembly 22 has a hinge shaft 223 along a direction parallel to the V-shaped precision positioning wall 2121. The floating clamping assembly 23 is hinged to the floating seat assembly 22 via the hinge shaft 223. The outer periphery of the floating clamping assembly 23 has a V-shaped opening 2311. The V-shaped opening 2311 of the floating clamping assembly 23 is arranged opposite to the V-shaped precision positioning wall 2121 of the precision positioning clamping block assembly 21 to form a double V-shaped floating positioning clamping structure.
[0040] The clamping drive mechanism 3 is connected to the precision positioning clamping block assembly 21 and the floating seat assembly 22 to drive them to move closer or further apart.
[0041] In this embodiment, when the valve body positioning fixture clamps and positions the valve body workpiece, the V-shaped precision positioning wall 2121 of the precision positioning clamping block assembly 21 is used as the positioning reference, and the V-shaped opening 2311 of the floating clamping assembly 23 is used to reliably abut against and clamp the valve body workpiece. When the end of the V-shaped opening 2311 of the floating clamping assembly 23 contacts the positioning surface 51 of the valve body 5, it can rotate around the hinge axis 223 to provide rotational floating. When the V-shaped opening 2311 of the floating clamping assembly 23 and the V-shaped precision positioning wall 2121 of the precision positioning clamping block assembly 21 clamp the valve body, one side of the valve body 5 abuts against the V-shaped precision positioning wall 2121 to achieve accurate positioning, and the floating clamping assembly 23 rotates to adapt to the contour of the other side of the valve body 5 positioning surface, thereby achieving high-precision, stable, and reliable clamping. This utility model can also achieve high-precision, stable, and reliable clamping for valve bodies with irregular casting surface roundness.
[0042] In some embodiments, the floating seat assembly 22 includes a sliding seat 221 and a floating body 222; the sliding seat 221 is slidably connected to the slide rail 11; the floating body 222 is slidably connected to the sliding seat 221 along the length direction perpendicular to the slide rail 11 and parallel to the top surface of the base 1; the hinge shaft 223 is vertically rotatably connected to the top of the floating body 222, and the floating clamping assembly 23 is hinged to the top of the floating body 222 through the hinge shaft 223.
[0043] The floating clamping assembly 23 can rotate around the hinge axis 223, realizing the rotational floating degree of freedom; the floating body 222 is slidably connected to the sliding seat 221, which also gives the floating clamping assembly 23 the translational floating degree of freedom; thus, the floating clamping assembly 23 has an adaptive, stable and reliable clamping effect on the valve body when it comes into contact with the positioning surface 51 of the valve body 5. The floating clamping assembly 23 will not cause over-positioning during the clamping process of the valve body, nor will it damage the positioning accuracy of the V-shaped precision positioning wall 2121.
[0044] Specifically, a guide rail 2211 is fixed on the sliding base 1; the guide rail 2211 is parallel to the top surface of the base 1 and arranged in the direction perpendicular to the slide rail 11. The floating body 222 is slidably connected to the guide rail 2211.
[0045] In some embodiments, the sliding seat 221 is fixed with blocks 224 on both sides corresponding to the sliding direction of the floating body 222.
[0046] The stops 224 on both sides of the floating body 222 limit its sliding range and prevent excessive sliding displacement from exceeding the limit.
[0047] In some embodiments, the floating clamping assembly 23 includes a V-shaped clamping arm plate 231 and clamping wheels 232; the V-shaped clamping arm plate 231 has a shaft hole 2312 in the middle of its surface; the V-shaped clamping arm plate 231 is arranged corresponding to the top of the floating body 222 and its shaft hole 2312 is rotatably sleeved on the hinge shaft 223; clamping wheels 232 are rotatably installed at both ends of the top surface of the V-shaped clamping arm plate 231 along the length direction; the axial direction of the clamping wheels 232 is parallel to the axial direction of the hinge shaft 223; the clamping wheels 232 and the V-shaped precision positioning wall 2121 are arranged opposite to each other and spaced apart along the length direction of the slide rail 11; the outer peripheral wall of the clamping wheels 232 extends to the V-shaped opening 2311 corresponding to the V-shaped clamping arm plate 231 to form an adaptive rolling clamping wheel structure that can roll against the receiving valve body.
[0048] The V-shaped clamping arm plate 231 is rotatably connected to the top of the floating body 222 via the hinge shaft 223, and has a rotating floating function. When the clamping wheels 232 at both ends of the top surface of the V-shaped clamping arm plate 231 come into contact with the positioning surface 51 of the valve body 5 to be positioned, they can adaptively roll along the positioning surface 51 of the valve body 5 to be positioned, which reduces friction and wear on the valve body positioning surface and improves the accuracy and stability of valve body positioning and clamping.
[0049] Specifically, the clamping wheels 232 are rotatably mounted at both ends of the top surface of the V-shaped clamping arm plate 231 along its length via bearings and a rotating shaft.
[0050] In some embodiments, a stop pin 225 is fixedly installed on the floating body 222 on the side corresponding to the width direction of the V-shaped clamping arm plate 231 to limit the rotation range of the V-shaped clamping arm plate 231.
[0051] Specifically, there are two stop pins 225. The two stop pins 225 are arranged on the side of the V-shaped clamping arm plate 231 away from its V-shaped opening 2311 and corresponding to both ends of the V-shaped clamping arm plate 231 in the length direction, so as to block and limit the movement of the V-shaped clamping arm plate 231 when it rotates left and right.
[0052] The rotation range of the V-shaped clamping arm plate 231 is limited by the stop pin 225 to prevent it from rotating too much and deviating from the working position, thereby reducing unnecessary adjustments and facilitating operation.
[0053] In some embodiments, the precision positioning clamping block assembly 21 includes a second sliding seat 211 and a positioning plate 212; the second sliding seat 211 is slidably connected to the slide rail 11; the second sliding seat 211 and the first sliding seat 221 are arranged opposite to each other and spaced apart along the length of the slide rail 11; the positioning plate 212 is parallel to the top surface of the base 1 and fixed to the top of the second sliding seat 211; the positioning plate 212 and the clamping wheel 232 are arranged opposite to each other and spaced apart along the length of the slide rail 11; a V-shaped notch is provided on the side end of the positioning plate 212 near the clamping wheel 232 to form a V-shaped precision positioning wall 2121.
[0054] In some embodiments, the system further includes a valve body support platform 4, which is fixedly installed on the top surface of the base 1 and located between the first sliding seat 221 and the second sliding seat 211, and below the V-shaped precision positioning wall 2121 and the clamping wheel 232.
[0055] The valve body support platform 4 is used to support the valve body to be clamped and positioned; it can facilitate quick clamping and arrangement, and improve processing efficiency.
[0056] In some embodiments, the clamping drive mechanism 3 includes a drive motor 31 and a double-rotating lead screw 32; the double-rotating lead screw 32 is mounted on the base 1 and arranged parallel to the length direction of the slide rail 11; the double-rotating lead screw 32 is provided with a threaded section one and a threaded section two with the opposite rotation direction to the threaded section one along the length direction; the precision positioning clamping block assembly 21 and the floating seat assembly 22 are threadedly connected to the threaded section one and the threaded section two of the double-rotating lead screw 32 in a one-to-one correspondence; the drive motor 31 is mounted on the base 1 and driven to rotate the double-rotating lead screw 32, thereby driving and controlling the precision positioning clamping block assembly 21 and the floating seat assembly 22 to move closer or further away from each other.
[0057] The drive motor 31 drives the double-rotating lead screw 32 to rotate in both directions, thereby driving the V-shaped opening 2311 of the floating clamping assembly 23 and the V-shaped precision positioning wall 2121 of the precision positioning clamping block assembly 21 to move closer or further away from each other through threaded transmission, so as to position, clamp or release the valve body.
[0058] Specifically, the output shaft of the drive motor 31 is driven by the input shaft of the reducer 33, and the output shaft of the reducer 33 is driven by one end of the double-rotating lead screw 32. The double-rotating lead screw 32 is arranged parallel to the slide rail 11 and located in the middle of the two slide rails 11. Both ends of the double-rotating lead screw 32 are rotatably mounted on the top of the base 1 through bearing seats. The housing of the drive motor 31 is fixedly connected to the housing of the reducer 33, and the housing of the reducer 33 is fixed to one end of the base 1 in the length direction by bolts. The double-rotating lead screw 32 can be a double-rotating ball screw.
[0059] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.
[0060] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A double-V-shaped, multi-compatible floating valve body positioning fixture, characterized in that, include: A base (1) is provided with a slide rail (11) on its top surface; The clamping assembly (2) includes a precision positioning clamping block assembly (21), a floating seat assembly (22), and a floating clamping assembly (23); the precision positioning clamping block assembly (21) and the floating seat assembly (22) are slidably connected to the slide rail (11) and are spaced apart along the length of the slide rail (11); the precision positioning clamping block assembly (21) has a V-shaped precision positioning wall surface (2121) on the side near the floating seat assembly (22); the floating seat assembly (22) has a V-shaped precision positioning wall surface (2121) along the upper edge of the floating seat assembly (23). A hinge shaft (223) is provided parallel to the direction of the V-shaped precision positioning wall (2121); the floating clamping assembly (23) is hinged to the floating seat assembly (22) through the hinge shaft (223); the floating clamping assembly (23) has a V-shaped opening (2311) on its outer periphery; the V-shaped opening (2311) of the floating clamping assembly (23) and the V-shaped precision positioning wall (2121) of the precision positioning clamping block assembly (21) are arranged opposite to each other to form a double V-shaped floating positioning clamping structure; The clamping drive mechanism (3) is connected to the precision positioning clamping block assembly (21) and the floating seat assembly (22) to drive them to move closer or further apart.
2. The double V-shaped multi-compatible floating valve body positioning fixture according to claim 1, characterized in that, The floating seat assembly (22) includes a sliding seat (221) and a floating body (222); the sliding seat (221) is slidably connected to the slide rail (11); the floating body (222) is slidably connected to the sliding seat (221) along the length direction perpendicular to the slide rail (11) and parallel to the top surface of the base (1); one end of the hinge shaft (223) is vertically connected to the top of the floating body (222), and the floating clamping assembly (23) is hinged to the top of the floating body (222) through the hinge shaft (223).
3. The double V-shaped multi-compatible floating valve body positioning fixture according to claim 2, characterized in that, The sliding seat (221) is fixed with blocks (224) on both sides corresponding to the sliding direction of the floating body (222).
4. The double V-shaped multi-compatible floating valve body positioning fixture according to claim 2, characterized in that, The floating clamping assembly (23) includes a V-shaped clamping arm plate (231) and clamping wheels (232); the V-shaped clamping arm plate (231) has a shaft hole (2312) in the middle of its surface; the V-shaped clamping arm plate (231) is arranged corresponding to the top of the floating body (222) and its shaft hole (2312) is rotatably sleeved on the hinge shaft (223); the clamping wheels are rotatably installed at both ends of the top surface of the V-shaped clamping arm plate (231) in the length direction. Wheel (232); the axial direction of the clamping wheel (232) is parallel to the axial direction of the hinge shaft (223); the clamping wheel (232) and the V-shaped precision positioning wall (2121) are arranged opposite to each other and spaced apart along the length direction of the slide rail (11); the outer peripheral wall of the clamping wheel (232) extends to the V-shaped opening (2311) corresponding to the V-shaped clamping arm plate (231) to form an adaptive rolling clamping wheel structure that can roll against the receiving valve body.
5. The double V-shaped multi-compatible floating valve body positioning fixture according to claim 4, characterized in that, A stop (225) is installed on the side of the floating body (222) in the width direction corresponding to the V-shaped clamping arm plate (231) to limit the rotation range of the V-shaped clamping arm plate (231).
6. The double V-shaped multi-compatible floating valve body positioning fixture according to claim 4, characterized in that, The precision positioning clamping block assembly (21) includes a second sliding seat (211) and a positioning plate (212); the second sliding seat (211) is slidably connected to the slide rail (11); the second sliding seat (211) and the first sliding seat (221) are arranged opposite to each other and spaced apart along the length direction of the slide rail (11); the positioning plate (212) is parallel to the top surface of the base (1) and fixed to the top of the second sliding seat (211); the positioning plate (212) and the clamping wheel (232) are arranged opposite to each other and spaced apart along the length direction of the slide rail (11); the side end of the positioning plate (212) near the clamping wheel (232) is provided with a V-shaped notch to form the V-shaped precision positioning wall (2121).
7. The double V-shaped multi-compatible floating valve body positioning fixture according to claim 6, characterized in that, It also includes a valve body support platform (4), which is installed on the top surface of the base (1) and located between the first sliding seat (221) and the second sliding seat (211), and corresponds to the V-shaped precision positioning wall (2121) and below the clamping wheel (232).
8. The double V-shaped multi-compatible floating valve body positioning fixture according to claim 2, characterized in that, The clamping drive mechanism (3) includes a drive motor (31) and a double-rotating screw (32); the double-rotating screw (32) is mounted on the base (1) and arranged parallel to the length direction of the slide rail (11); the double-rotating screw (32) is provided with a threaded section one and a threaded section two with the opposite rotation direction to the threaded section one along the length direction; the precision positioning clamping block assembly (21) and the floating seat assembly (22) are connected one-to-one to the threaded section one and the threaded section two of the double-rotating screw (32) by corresponding thread transmission; the drive motor (31) is mounted on the base (1) and is connected to and drives the double-rotating screw (32) to rotate, thereby driving and controlling the precision positioning clamping block assembly (21) and the floating seat assembly (22) to move closer or further away from each other.