Lathe tooling and lathe for machining valve bodies

Abstract

The utility model discloses a lathe frock and lathe for valve body processing, wherein the lathe frock includes: positioning device, including with lathe main shaft vertical's locating plate, vertical setting in locating plate's locating pin, locating plate is used for abutting stop waiting lathing product, and locating pin is used for inserting waiting lathing product to position, tension device is used for along the axial direction pressure tight fixed waiting lathing product of lathe main shaft, including tensioning shaft, and tensioning shaft includes two axial tensioning spare, and two axial tensioning spare penetrates locating plate, and the limiting rod is arranged between two axial tensioning spare, and the limiting rod penetrates waiting lathing product along the radial direction of lathe main shaft, when tensioning shaft is far away from locating plate, and two axial tensioning spare drive limiting rod to be close to locating plate to make waiting lathing product extrude locating plate to fixed. The utility model of a lathe frock and lathe for valve body processing can reduce center deviation and improve machining accuracy.

Description

Technical Field

[0001] This utility model relates to the technical field of valve body processing equipment, and in particular to a lathe fixture and a lathe used for valve body processing. Background Technology

[0002] Rotary valves are a type of valve body product. During production, they can be machined using a lathe to improve processing efficiency.

[0003] The lathe chuck is equipped with two locating pins, which position the valve body. Then, the jaws of the lathe chuck clamp the valve body to fix it in place.

[0004] However, due to manufacturing deviations in the valve body blank, when the chuck clamps and fixes the valve body, the valve body will shift relative to the center of the chuck, causing the machined holes or cylindrical surfaces to deviate from the design position, affecting the machining accuracy. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a lathe fixture that can reduce center offset and improve machining accuracy.

[0006] This utility model also proposes a lathe with the above-mentioned lathe tooling.

[0007] According to a first aspect embodiment of the present invention, the lathe fixture includes: The positioning device includes a positioning plate perpendicular to the lathe spindle and a positioning pin erected on the positioning plate. The positioning plate is used to abut against and limit the product to be turned, and the positioning pin is used to insert into the product to be turned for positioning. A tensioning device for pressing and fixing the product to be turned along the axial direction of the lathe spindle, including a tensioning shaft, the tensioning shaft including two axial tensioning members, the two axial tensioning members passing through the positioning plate, and a limit rod provided between the two axial tensioning members, the limit rod passing through the product to be turned along the radial direction of the lathe spindle; When the tensioning shaft moves away from the positioning plate, the two axial tensioning members drive the limiting rod closer to the positioning plate, so that the product to be turned presses against the positioning plate to fix it.

[0008] The lathe tooling according to the embodiments of this utility model has at least the following beneficial effects: This utility model, by setting a positioning device, also facilitates the positioning of the product to be turned by using a positioning plate and positioning pin, thereby meeting the turning requirements and improving the dimensional and shape quality of the turning process.

[0009] This invention, by setting up a tensioning device, generates a clamping force along the axis of the lathe spindle, thereby clamping and fixing the product to be turned along the axis of the lathe spindle. This eliminates the clamping force of the jaws perpendicular to the axis of the lathe spindle, preventing the product to be turned from being skewed away from the positioning plate and positioning pin due to force, reducing center offset, avoiding affecting the turning quality, and also reducing the impact of manufacturing differences in the valve body blank.

[0010] This utility model also provides a lathe for machining valve bodies, which has the above-mentioned beneficial effects.

[0011] The lathe tooling according to the first aspect of the present invention further includes a fixing block, on which the two limiting rods are vertically mounted.

[0012] According to a first aspect of the present invention, a lathe tooling is provided with a guide cone on the side of the limiting rod away from the fixing block, and the guide cone is used to guide the limiting rod through the product to be turned.

[0013] According to the lathe fixture of the first aspect of the present invention, the two limiting rods are arranged in parallel, and the plane in which the two limiting rods are located is perpendicular to the axis of the lathe spindle.

[0014] According to a first aspect embodiment of the present invention, the lathe tooling includes a tensioning shaft, the axial tensioning member includes a plate-shaped body, the plate-shaped body is erected at the end of the shaft, and the plate-shaped body is provided with a radial through hole for the limiting rod to pass through.

[0015] According to the lathe tooling of the first aspect of the present invention, the radial through hole is a waist hole, and the length direction of the cross-section of the waist hole is arranged along the axial direction of the lathe spindle.

[0016] According to a first aspect embodiment of the present invention, the lathe tooling includes a spindle fixing seat, the spindle fixing seat being tubular, a tensioning shaft being disposed inside the spindle fixing seat, and a positioning plate being mounted on the end of the spindle fixing seat.

[0017] According to a first aspect embodiment of the present invention, a lathe fixture is provided in the spindle fixing seat with a pad and a stepped portion supporting the pad. The pad is located between the tensioning shaft and the positioning plate, and the pad has a central through hole for accommodating the axial tensioning member.

[0018] According to a first aspect of the present invention, the lathe tooling is provided with a boss for abutting against the pad, and the radial outer surface of the boss matches the inner surface of the step portion.

[0019] A lathe for machining valve bodies according to a second aspect embodiment of the present invention includes the lathe tooling described in any one of the above claims.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the lathe tooling structure according to an embodiment of the present utility model; Figure 2 for Figure 1 The diagram shows the assembly of the lathe tooling.

[0023] Reference numerals: 1. Positioning plate; 2. Positioning pin; 3. Tensioning shaft; 4. Axial tensioning element; 5. Limiting rod; 6. Fixing block; 7. Guide cone tip; 8. Radial through hole; 9. Main spindle fixing seat; 10. Pad; 11. Intermediate through hole; 12. Boss. Detailed Implementation

[0024] 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 are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional 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.

[0026] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" and "second" are mentioned, this is only for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation, connection, and linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] The lathe tooling and the lathe for machining valve bodies according to embodiments of the present invention are described below with reference to the accompanying drawings.

[0029] Reference Figure 1 and Figure 2 The present invention aims to provide an embodiment of a lathe tooling, which may be part of a lathe for machining valve bodies. Therefore, the present invention also aims to provide an embodiment of a lathe for machining valve bodies, wherein the lathe for machining valve bodies includes the lathe tooling.

[0030] In this embodiment, the valve body mainly refers to valve body parts such as rotary valves that require machining.

[0031] Compared with existing technologies, the lathe fixture of this invention can reduce the center offset of the valve body and improve machining accuracy. Furthermore, the lathe used for valve body machining according to this invention can improve machining quality by applying the aforementioned lathe fixture.

[0032] Reference Figure 1 The present invention aims to provide an embodiment of a lathe tooling.

[0033] In this embodiment, the lathe tooling includes a positioning device and a tensioning device.

[0034] The positioning device includes a positioning plate 1 perpendicular to the lathe spindle and a positioning pin 2 vertically mounted on the positioning plate 1. The positioning plate 1 is used to abut against and limit the product to be turned, and the positioning pin 2 is used to insert into the product to be turned for positioning.

[0035] The tensioning device is used to press and fix the product to be turned along the axial direction of the lathe spindle. It includes a tensioning shaft 3, which includes two axial tensioning members 4. The two axial tensioning members 4 pass through the positioning plate 1. A limit rod 5 is provided between the two axial tensioning members 4. The limit rod 5 passes through the product to be turned along the radial direction of the lathe spindle.

[0036] When the tensioning shaft 3 moves away from the positioning plate 1, the two axial tensioning members 4 drive the limiting rod 5 to approach the positioning plate 1, so that the product to be turned presses against the positioning plate 1 to fix it.

[0037] When the tensioning shaft 3 approaches the positioning plate 1, the two axial tensioning components 4 and the electric limit rods 5 move away from the positioning plate 1, causing the machined product to move away from the positioning plate 1. Furthermore, the machined product separates from the positioning pin 2, completing the unloading operation.

[0038] In summary, this embodiment, by setting up a positioning device, also facilitates the positioning of the product to be turned by the positioning plate 1 and the positioning pin 2, thereby meeting the turning requirements and improving the dimensional and shape quality of the turning process.

[0039] This embodiment uses a tensioning device to generate a clamping force along the axis of the lathe spindle, which clamps and fixes the product to be turned along the axis of the lathe spindle. This eliminates the clamping force of the jaws perpendicular to the axis of the lathe spindle, preventing the product to be turned from being forced away from the positioning plate 1 and positioning pin 2 and thus avoiding skewing. This reduces center offset and avoids affecting the quality of the turning process. It can also reduce the impact of manufacturing differences in the valve body blank.

[0040] In some specific embodiments of this utility model, the positioning device may include a spindle fixing seat 9, which is tubular, a tensioning shaft 3 is disposed inside the spindle fixing seat 9, and a positioning plate 1 is installed at the end of the spindle fixing seat 9.

[0041] It is easy to understand that by setting the spindle fixing seat 9, this embodiment also facilitates the arrangement of positioning and tensioning devices for installation on the lathe spindle, and also makes the lathe tooling a whole, which is convenient to use.

[0042] In some specific embodiments of this utility model, the spindle fixing seat 9 may be provided with a pad 10 and a step portion of the support pad 10. The pad 10 is located between the tensioning shaft 3 and the positioning plate 1, and the pad 10 is provided with a central through hole 11 for accommodating the axial tensioning member 4.

[0043] It is easy to understand that by setting a step portion, this embodiment can meet the setting requirements of the pad 10 and support the pad 10. In this way, the pad 10 can support the positioning plate 1 to resist the tension force, reduce the deformation of the positioning plate 1, and also eliminate the need to increase the thickness of the positioning plate 1, thereby reducing the manufacturing cost of the positioning plate 1.

[0044] In some specific embodiments of this utility model, the positioning plate 1 may be provided with a boss 12 for abutting the pad 10, and the radial outer surface of the boss 12 matches the inner surface of the step portion.

[0045] It is easy to understand that by giving the positioning plate 1 a boss 12, this embodiment can also make the positioning plate 1 coarsely positioned on the spindle fixing seat 9, reducing the amount of subsequent adjustment work. At the same time, by increasing the thickness of the positioning plate 1, the positioning plate 1 can withstand a certain force and avoid affecting the positioning accuracy.

[0046] In some specific embodiments of this utility model, the positioning plate 1 and the spindle fixing seat 9 can be connected by bolts to meet the needs of disassembly and adjustment, and reduce the impact of manufacturing deviations.

[0047] In some specific embodiments of this utility model, a fixing block 6 may also be included, with two limiting rods 5 vertically installed on the fixing block 6.

[0048] It is easy to understand that by setting the fixing block 6, this embodiment also makes the two limiting rods 5 and the fixing block 6 a whole part, which is convenient for picking and placing and simplifies the loading and unloading operation.

[0049] At the same time, it ensures that the position of the limit rod 5 relative to the valve body is accurate and unique, avoiding the two limit rods 5 being inserted into the valve body to different depths and occupying different spaces, thus avoiding affecting the movement of the turning tool.

[0050] In some specific embodiments of this utility model, a guide cone can be provided on the side of the limiting rod 5 away from the fixing block 6. The guide cone is used to guide the limiting rod 5 through the product to be machined.

[0051] It is easy to understand that by setting a guide cone in this embodiment, when the limiting rod 5 is inserted into the valve body, the hole position can be easily found, reducing adjustments and shortening the feeding time.

[0052] In some specific embodiments of this utility model, the two limiting rods 5 can be arranged in parallel, and the plane on which the two limiting rods 5 are located is perpendicular to the axis of the lathe spindle.

[0053] It is easy to understand that by arranging the limiting rods 5 as described above, this embodiment also ensures that the positions of the two limiting rods 5 are consistent, preventing one of the two limiting rods 5 from becoming loose. At the same time, it adapts to the structural characteristics of the valve body product and meets the processing requirements of the rotary valve.

[0054] In some specific embodiments of this utility model, the tensioning shaft 3 may include a shaft body, and the axial tensioning member 4 may include a plate-shaped body. The plate-shaped body is erected at the end of the shaft body, and the plate-shaped body is provided with a radial through hole 8 for the limiting rod 5 to pass through.

[0055] It is easy to understand that this embodiment also facilitates the connection of two limiting rods 5 through the plate-shaped body, and at the same time, the structure is simple and concise.

[0056] In some specific embodiments of this utility model, the plate-shaped body and the shaft can be integrally formed, reducing the number of parts, simplifying the connection structure, and avoiding increasing the diameter of the tensioning shaft 3.

[0057] In some specific embodiments of this utility model, the radial perforation 8 can be a waist hole, and the length direction of the cross-section of the waist hole is set along the axis of the lathe spindle.

[0058] It is easy to understand that in this embodiment, by making the radial through hole 8 a waist hole, the length direction of the waist hole can increase the movement clearance of the limiting rod 5, which meets the needs of picking up and putting down the limiting rod 5. At the same time, the width direction of the waist hole can restrict the position of the limiting rod 5, so that the clamping position of the machined product is consistent and avoids affecting the clamping effect.

[0059] In some specific embodiments of this utility model, the limiting rod 5 can be provided with an annular groove, so that the radial through hole 8 of the axial tensioning member 4 can be inserted into the annular groove, reducing the risk of the limiting rod 5 being thrown out when the lathe tooling rotates and improving safety.

[0060] In the description of this specification, references to terms such as "an embodiment," "some embodiments," "illustrative 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, 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.

[0061] The terms "first," "second," "third," "fourth," etc. (if applicable) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein.

[0062] It should also be noted that, in the description of this specification, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0063] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may also include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products, or apparatus.

[0064] Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0065] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A lathe fixture, characterized in that, The lathe tooling includes: The positioning device includes a positioning plate (1) perpendicular to the lathe spindle and a positioning pin (2) erected on the positioning plate (1). The positioning plate (1) is used to abut against and limit the product to be turned, and the positioning pin (2) is used to insert into the product to be turned for positioning. A tensioning device for pressing and fixing the product to be turned along the axial direction of the lathe spindle, including a tensioning shaft (3), the tensioning shaft (3) including two axial tensioning members (4), the two axial tensioning members (4) passing through the positioning plate (1), and a limit rod (5) provided between the two axial tensioning members (4), the limit rod (5) passing through the product to be turned along the radial direction of the lathe spindle; When the tensioning shaft (3) moves away from the positioning plate (1), the two axial tensioning members (4) drive the limiting rod (5) to approach the positioning plate (1) so that the product to be machined presses against the positioning plate (1) to fix it.

2. The lathe fixture according to claim 1, characterized in that: It also includes a fixing block (6), on which the two limiting rods (5) are vertically installed.

3. The lathe fixture according to claim 2, characterized in that: The limiting rod (5) is provided with a guide cone on the side away from the fixing block (6), and the guide cone is used to guide the limiting rod (5) through the product to be machined.

4. The lathe fixture according to claim 2 or 3, characterized in that: The two limiting rods (5) are arranged in parallel, and the plane in which the two limiting rods (5) are located is perpendicular to the axis of the lathe spindle.

5. The lathe fixture according to claim 2 or 3, characterized in that: The tensioning shaft (3) includes a shaft body, and the axial tensioning member (4) includes a plate-shaped body. The plate-shaped body is erected at the end of the shaft body, and the plate-shaped body is provided with a radial through hole (8) through which the limiting rod (5) passes.

6. The lathe fixture according to claim 5, characterized in that: The radial perforation (8) is a waist hole, and the length direction of the cross-section of the waist hole is set along the axis of the lathe spindle.

7. The lathe fixture according to claim 1, characterized in that: The positioning device includes a spindle fixing seat (9), which is tubular, and a tensioning shaft (3) is disposed inside the spindle fixing seat (9). The positioning plate (1) is installed at the end of the spindle fixing seat (9).

8. The lathe fixture according to claim 7, characterized in that: The spindle fixing seat (9) is provided with a pad (10) and a step portion supporting the pad (10). The pad (10) is located between the tensioning shaft (3) and the positioning plate (1). The pad (10) is provided with a central through hole (11) for accommodating the axial tensioning member (4) to pass through.

9. The lathe fixture according to claim 8, characterized in that: The positioning plate (1) is provided with a boss (12) for abutting against the pad (10), and the radial outer surface of the boss (12) matches the inner surface of the step portion.

10. A lathe for machining valve bodies, characterized in that: Includes the lathe tooling described in any one of claims 1 to 9.

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