Tool clamp for machining valve thin-wall part
By designing tooling fixtures with clamping components, limiting components, and internal support components, the problem of deformation of thin-walled round tubes during processing was solved, achieving higher processing accuracy and stability.
Patent Information
- Application Number
- CN202520126157.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-01-20
AI Technical Summary
Thin-walled round tubes are prone to deformation during processing, resulting in poor machining accuracy, a problem that existing fixtures cannot effectively solve.
A tooling fixture including clamping parts, limiting parts, inner support parts and locking parts is designed. The clamping parts and limiting parts position the thin-walled round tube, the inner support parts support it from the inside out, and the locking parts lock the entire assembly, avoiding direct clamping by the chuck and improving the structural strength.
This reduces the probability of deformation during the clamping and processing of thin-walled round tubes, improves processing accuracy, and ensures the stability and precision of the processing.
Smart Images
Figure CN223718964U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of valve part machining, in particular to a valve thin -walled part machining's frock clamp. BACKGROUND
[0002] Valves are control components in fluid conveying systems, with functions of cutoff, regulation, flow guiding, anti-backflow, pressure stabilization, shunt or overflow pressure relief, etc.
[0003] There are many kinds of valve parts, among which, when machining the surface of shaft parts, generally, first, the size is turned by a lathe, and then the surface is treated.
[0004] The traditional method is to clamp the shaft parts by a chuck (three-jaw chuck, four-jaw chuck) on a lathe, in order to prevent the shaft parts from shifting during machining, the chuck generally applies relatively large clamping force, therefore, this clamping method is generally applicable to solid shafts or shaft parts with relatively thick walls.
[0005] For thin-walled parts, such as thin-walled pipes, due to their thin walls, the anti-clamping deformation ability is poor, when the chuck clamps them, deformation is likely to occur, and when machining the surface by turning, the cutting tool will "push" against the outer wall of the thin-walled pipe, the thin-walled pipe will deform due to uneven force, and the machining precision is relatively poor. INVENTION CONTENTS
[0006] In view of the above problems in the related art, the purpose is to provide a valve thin-walled part machining frock clamp to solve the technical problems of deformation and relatively poor machining precision of thin-walled pipes during clamping and machining in the related art.
[0007] The technical solution to achieve the purpose is: a valve thin-walled part machining frock clamp, comprising:
[0008] A clamping piece for being clamped by a chuck, and the clamping piece is inserted and positioned with one end of a thin-walled pipe, and the chuck has a gap with the end face of the one end of the thin-walled pipe;
[0009] A limiting piece is arranged between the clamping piece and the limiting piece, and is inserted and positioned with the other end of the thin-walled pipe, and abuts against the end face of the other end of the thin-walled pipe;
[0010] An inner supporting piece is arranged between the clamping piece and the limiting piece, and is used to support the middle position of the thin-walled pipe from inside to outside;
[0011] And a locking piece passes through the limiting piece and the inner supporting piece, and is connected with the clamping piece, and is used to lock the clamping piece, the limiting piece, the inner supporting piece and the thin-walled pipe.
[0012] Further: the gap is equal to 0mm.
[0013] Further: when the gap is equal to 0mm, the end face of the thin-walled pipe abuts against the chuck, and the clamping member is a section of circular shaft.
[0014] The clamping member is clamped by the chuck and supports the end of the thin-walled pipe from inside to outside.
[0015] Further: when the gap is greater than 0mm;
[0016] The clamping member comprises: a clamping shaft section clamped by the chuck;
[0017] an inner support shaft section for inserting and positioning with the thin-walled pipe and supporting the end of the thin-walled pipe from inside to outside;
[0018] and a limiting flange arranged between the clamping shaft section and the inner support shaft section, the outer diameter size of the limiting flange being greater than the outer diameter size of the clamping shaft section or the inner support shaft section, and one side of the limiting flange being used to abut against the chuck and the other side being used to abut against the end face of the end of the thin-walled pipe.
[0019] Further: the center line of the inner support shaft section is on the same straight line as the center line of the clamping shaft section.
[0020] Further: the clamping member also has a threaded hole;
[0021] The threaded hole is arranged at the center position of the inner support shaft section.
[0022] Further: one side of the limiting member has a stop opening, and the middle position specifically has a first through hole;
[0023] The stop opening is inserted and positioned with the other end of the thin-walled pipe and abuts against the end face of the other end of the thin-walled pipe;
[0024] The first through hole is penetrated by the locking member.
[0025] Further: the outer diameter size of the limiting member is smaller than the minimum outer diameter size of the thin-walled pipe.
[0026] Further: the inner support member is a cylindrical structure and has a second through hole at the middle position;
[0027] The second through hole is penetrated by the locking member.
[0028] Further: the locking member is an inner hexagonal bolt, penetrates the first through hole, penetrates the second through hole, and is threadedly connected with the threaded hole.
[0029] By adopting the technical scheme, the following beneficial effects are achieved: the valve thin-wall part machining tool clamp is provided with a clamping piece, a limiting piece, an inner supporting piece and a locking piece compared with related art.
[0030] In use, the locking piece passes through the limiting piece and the inner supporting piece, is connected with the clamping piece, locks the clamping piece, the limiting piece, the inner supporting piece and the thin-wall pipe, and is clamped by the chuck at the clamping piece. Since the chuck is not clamped on the thin-wall pipe, and the thin-wall pipe is positioned by the clamping piece and the limiting piece and is supported from inside to outside by the inner supporting piece, the structural strength of the thin-wall pipe is improved, the probability of clamping and machining deformation is reduced, and the machining precision is ensured.
[0031] Thus, the technical problem that the thin-wall pipe is deformed and the machining precision is relatively poor during clamping and machining is overcome, the probability of deformation is reduced, and the machining precision is improved, which has practicality. BRIEF DESCRIPTION OF DRAWINGS
[0032] Figure 1 is a structure schematic view of the clamping piece, the limiting piece, the inner supporting piece and the locking piece after combination.
[0033] Figure 2 is Figure 1 a partial sectional view.
[0034] Figure 3 is Figure 1 an exploded view.
[0035] Figure 4 is a structure schematic view of the thin-wall pipe after being locked.
[0036] In the drawings: 10. clamping piece, 10-1. clamping shaft section, 10-2. inner supporting shaft section, 10-3. limiting flange, 10-4. threaded hole, 20. limiting piece, 20-1. stop opening, 20-2. first through hole, 30. inner supporting piece, 30-1. second through hole, 40. locking piece, 100. thin-wall pipe. DETAILED DESCRIPTION
[0037] In order to make the content easier to be clearly understood, the following further detailed description is made according to specific embodiments and in combination with the drawings.
[0038] The valve thin-wall part machining tool clamp solves the technical problem that the thin-wall pipe is deformed and the machining precision is relatively poor during clamping and machining in related art, can be manufactured and used, achieves the positive effect of reducing the probability of deformation and improving the machining precision, and the overall idea is as follows:
[0039] EMBODIMENT
[0040] As Figure 1 , Figure 2, Figure 3 , Figure 4 As shown; a tooling fixture for machining thin-walled valve parts, comprising:
[0041] A clamping member 10 is used to be clamped by a chuck, and the clamping member 10 is inserted and positioned into one end of the thin-walled round tube 100. There is a gap between the chuck and one end face of the thin-walled round tube 100.
[0042] The limiting member 20 is spaced apart from the clamping member 10 and is inserted into and positioned at the other end of the thin-walled round tube 100, abutting against the other end face of the thin-walled round tube 100.
[0043] An inner support member 30 is disposed between the clamping member 10 and the limiting member 20, and is used to support the middle position of the thin-walled circular tube 100 from the inside out.
[0044] And a locking member 40, which passes through the limiting member 20 and the inner support member 30 and is connected to the clamping member 10, for locking the clamping member 10, the limiting member 20, the inner support member 30 and the thin-walled round tube 100;
[0045] Specifically, during implementation, the locking member 40 passes through the limiting member 20 and the inner support member 30, and connects with the clamping member 10, locking the clamping member 10, the limiting member 20, the inner support member 30 and the thin-walled round tube 100. Then, it is clamped by the chuck at the clamping member 100. Since the chuck is not clamped on the thin-walled round tube 100, and the thin-walled round tube 100 is positioned by the clamping member 10 and the limiting member 20, it is also supported from the inside out by the inner support member 30, which improves the structural strength of the thin-walled round tube 100, reduces the probability of clamping and processing deformation, and ensures processing accuracy.
[0046] Another implementation method:
[0047] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown; in practice, the gap is ≥0mm;
[0048] When the gap is 0mm, one end face of the thin-walled circular tube 100 abuts against the chuck, and the clamping member 10 is a section of circular shaft;
[0049] One end of the clamping member 10 is clamped by the chuck, and the other end supports one end of the thin-walled cylindrical tube 100 from the inside out;
[0050] One end face of the thin-walled round tube 100 abuts against the chuck, which limits one end of the thin-walled round tube 100 and the chuck is not clamped on the thin-walled round tube 100, reducing the probability of clamping deformation.
[0051] The other end of the clamping member 10 supports the thin-walled round tube 100 from the inside out, which not only positions the thin-walled round tube 100 and ensures the positioning accuracy of the thin-walled round tube 100, but also improves the structural strength of the thin-walled round tube 100.
[0052] When the gap is greater than 0 mm, for example, when the gap is 5 mm, the thickness of the limiting flange 10-3 is 5 mm.
[0053] The clamping member 10 includes: a clamping shaft section 10-1, which is clamped by the chuck; an inner support shaft section 10-2, which is used to insert and position with the thin-walled circular tube 100 and supports one end of the thin-walled circular tube 100 from the inside out; and a limiting flange 10-3, which is disposed between the clamping shaft section 10-1 and the inner support shaft section 10-2. The outer diameter of the limiting flange 10-3 is larger than the outer diameter of either the clamping shaft section 10-1 or the inner support shaft section 10-2. One side of the limiting flange 10-3 is used to abut against the chuck, and the other side is used to abut against one end face of the thin-walled circular tube 100.
[0054] The chuck clamps the shaft section 10-1, and one side wall of the limiting flange 10-3 abuts against the chuck, ensuring positioning accuracy. Moreover, the chuck is not clamped on the thin-walled round tube 100, reducing the chance of clamping deformation.
[0055] The other side wall of the limiting flange 10-3 abuts against one end face of the thin-walled round tube 100, and the inner support shaft section 10-2 supports one end of the thin-walled round tube 100 from the inside out. This not only positions the thin-walled round tube 100 and ensures the positioning accuracy of the thin-walled round tube 100, but also improves the structural strength of the thin-walled round tube 100.
[0056] The centerline of the inner support shaft section 10-2 and the centerline of the clamping shaft section 10-1 are on the same straight line, which is beneficial for using a three-jaw chuck to clamp, ensuring concentricity and improving the positioning accuracy of the thin-walled round tube 100.
[0057] The clamping member 10 also has a threaded hole 10-4; the threaded hole 10-4 is located at the center of the inner support shaft section 10-2; the threaded hole 10-4 is provided to be threadedly connected to the locking member 40, which is beneficial for the locking member 40 to lock the clamping member 10, the limiting member 20, the inner support member 30 and the thin-walled round tube 100, and the assembly is relatively convenient;
[0058] Another implementation method:
[0059] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown; in practice, the limiting member 20 has a stop 20-1 on one side and a first through hole 20-2 in the middle position;
[0060] The spigot 20-1 is inserted into the other end of the thin-walled pipe 100, and abuts against the end face of the other end of the thin-walled pipe 100, so that the assembly is convenient, and the positioning accuracy of the thin-walled pipe 100 is ensured;
[0061] The first through hole 20-2 is penetrated by the locking member 40, so that the assembly is convenient;
[0062] The outer diameter size of the limiting member 20 is smaller than the minimum outer diameter size of the thin-walled pipe 100. When the outer wall of the thin-walled pipe 100 is processed by turning and pinning, the limiting member 20 will not be collided, so that the safety is relatively high;
[0063] Another embodiment:
[0064] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 The inner supporting member 30 is in a cylindrical structure, and has a second through hole 30-1 at the middle position;
[0065] The inner supporting member 30 supports the middle position of the thin-walled pipe 100 from inside to outside, so that the structural strength of the thin-walled pipe 100 is improved, the probability of clamping and processing deformation is reduced, and the processing accuracy is ensured;
[0066] The second through hole 30-1 is penetrated by the locking member 40, so that the assembly is convenient, and the second through hole 30-1 is a stepped through hole, which is beneficial to accommodate the end of the locking member 40, and the appearance is relatively beautiful;
[0067] Another embodiment:
[0068] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 The locking member 40 is a hexagonal socket screw, penetrates the first through hole 20-2, penetrates the second through hole 30-1, and is threadedly connected with the threaded hole 10-4;
[0069] The locking member 40 is threadedly connected with the threaded hole 10-4, so that the clamping member 10, the limiting member 20, the inner supporting member 30 and the thin-walled pipe 100 are locked, and the assembly is convenient;
[0070] Regarding the structure of the thin-walled pipe 100:
[0071] See Figure 4The thin-walled pipe 100 is positioned on the clamping piece 10, the limiting piece 20 and the inner supporting piece 30, and the inner wall of the thin-walled pipe 100 is supported from inside to outside, which not only can position the thin-walled pipe 100, but also improves the structural strength of the thin-walled pipe 100, reduces the probability of clamping and machining deformation when turning the outer wall of the thin-walled pipe 100, and ensures the machining precision;
[0072] The working principle is as follows: the locking piece 40 passes through the limiting piece 20 and the inner supporting piece 30, and is connected with the clamping piece 10, and locks the clamping piece 10, the limiting piece 20, the inner supporting piece 30 and the thin-walled pipe 100;
[0073] Then, the thin-walled pipe 100 is clamped on the three-jaw chuck of the lathe through the clamping piece 100, and since the three-jaw chuck does not clamp the thin-walled pipe 100, and the thin-walled pipe 100 is positioned by the clamping piece 10 and the limiting piece 20 and is supported from inside to outside by the inner supporting piece 30, the structural strength of the thin-walled pipe 100 is improved, the probability of clamping and machining deformation is reduced, and the machining precision is ensured;
[0074] In the description, it should be understood that the terms "upper", "lower", "left", "right", "front", "back" and the like indicate the positional relationship or location relationship described based on the position relationship of the drawings, and are only for the convenience of description or simplification of description, and do not indicate a specific orientation that must be had; the operation process described in the embodiments is not an absolute use step, and in actual use, corresponding adjustment can be made;
[0075] Unless defined individually, the technical terms or scientific terms used herein should be understood as the usual meaning understood by a person with ordinary skills in the art; "first", "second" and similar words used in the specification and claims do not indicate any order, quantity or importance, but are used to distinguish different components; similarly, "one" or "a" and the like do not indicate a quantity limit, but indicate that at least one exists, which should be determined according to the content of the embodiments;
[0076] The above is only a preferred specific embodiment, but the protection scope is not limited thereto, and any person skilled in the art can make equivalent replacement or change according to the technical solution and the inventive concept within the disclosed technical scope, which should be covered within the protection scope.
Claims
1. A valve thin-wall part machining fixture, characterized in that, The utility model relates to a thin-walled pipe clamping device, including: Clamping piece (10) for being clamped by chuck, and the clamping piece (10) is inserted with one end of thin-walled pipe (100) and is positioned, and the chuck has the clearance with the end face of one end of thin-walled pipe (100); Limiting piece (20) is arranged between the clamping piece (10) and is spaced apart, and is inserted with the other end of thin-walled pipe (100) and is positioned, and is in abutment with the other end end face of thin-walled pipe (100); Internal support piece (30) is arranged between the clamping piece (10) and the limiting piece (20), and is used to support the middle position of thin-walled pipe (100) from inside to outside; And locking piece (40) passes through the limiting piece (20) and the internal support piece (30), and is connected with the clamping piece (10), and is used to lock the clamping piece (10), the limiting piece (20), the internal support piece (30) and thin-walled pipe (100).
2. The fixture for machining the valve thin-wall part according to claim 1, characterized in that: The clearance is greater than or equal to 0mm.
3. The valve thin-wall part machining fixture of claim 2, wherein: When the clearance is equal to 0mm, the end face of one end of thin-walled pipe (100) is in abutment with the chuck, and the clamping piece (10) is a section of circular shaft; The clamping piece (10) is clamped by the chuck, and is used to support one end of thin-walled pipe (100) from inside to outside.
4. The valve thin-wall part machining fixture of claim 2, wherein: When the clearance is greater than 0mm; The clamping piece (10) includes: clamping shaft section (10-1) is clamped by the chuck; Internal support shaft section (10-2) is used for being inserted with thin-walled pipe (100) and is positioned, and is used to support one end of thin-walled pipe (100) from inside to outside; And limiting flange (10-3) is arranged between the clamping shaft section (10-1) and the internal support shaft section (10-2), the limiting flange (10-3) the outer diameter size is greater than the outer diameter size of the clamping shaft section (10-1) or the internal support shaft section (10-2), and one side of the limiting flange (10-3) is used to abut against the chuck, and the other side is used to abut against the end face of one end of thin-walled pipe (100).
5. The valve thin-wall part machining fixture of claim 4, wherein: The center line of the internal support shaft section (10-2) is on the same straight line with the center line of the clamping shaft section (10-1).
6. The valve thin-wall part machining fixture of claim 4, wherein: The clamping piece (10) also has threaded hole (10-4) on it; The threaded hole (10-4) is arranged at the center position of the internal support shaft section (10-2).
7. The valve thin-wall part machining fixture of claim 6, wherein: One side of the limiting piece (20) has a stopper (20-1), and the middle position is a first through hole (20-2); The stopper (20-1) is inserted with the other end of thin-walled pipe (100) and is positioned, and is in abutment with the other end end face of thin-walled pipe (100); The first through hole (20-2) is passed through by the locking piece (40).
8. The fixture of claim 7, wherein: The limiting piece (20) the outer diameter size is less than the minimum outer diameter size of thin-walled pipe (100).
9. The fixture of claim 7, wherein: The internal support piece (30) is a cylindrical structure, and has a second through hole (30-1) at the middle position; The second through hole (30-1) is passed through by the locking piece (40).
10. The fixture of claim 9, wherein: The locking piece (40) is a hexagonal socket head cap screw, passes through the first through hole (20-2), passes through the second through hole (30-1), and is threadedly connected with the threaded hole (10-4).