Fixture for processing large ring hard alloy soft blank
By designing a fixture containing core shafts, ring -shaped pressure plates and screws, the problem of insufficient exposure to the exposure, high production cost, and difficulty in the processing costs of large category hard alloy soft blanks are solved. The effect of reducing resource consumption and improving processing efficiency.
Patent Information
- Application Number
- CN202420520644.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-18
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-03-18
AI Technical Summary
The prior art has problems such as insufficient contact strength of fixtures, high production costs, and high clamping difficulty in processing large-piece ring carbide soft blanks, resulting in easy damage or defects in workpieces and excessive resource consumption.
A fixture containing the core shaft, ring -shaped pressure plate and screw, and the relative sleeve coordination of the left ring pressure plate and the right ring -shaped pressure plate, combined with the tightening force of the screw to achieve a stable clamping of the workpiece.
The fixture structure is simple, the components are easy to obtain, and the pinching products are stable. It can complete the sinking and appearance processing in a fiber, greatly reducing repeated fixture labor, improving efficiency, and adapting to workpieces with different inner holes.
Smart Images
Figure CN222405298U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a clamp for processing a large-sized ring-type hard alloy soft blank, which is applied to the occasion of processing the large-sized ring-type hard alloy soft blank before sintering. Background Art
[0002] At present, in order to obtain the desired shape of cemented carbide soft billets, the shaping is mainly carried out through machining (turning, milling, etc.).
[0003] For carbide soft blanks of ring type, the common practice is to use a round rod-shaped metal core rod to pass through the inner hole, so that the two can reach a certain degree of fit, and then fix the soft blank by clamping the core rod on the equipment to complete the processing goal; a large number of core rods need to be prepared to match the inner holes of different sizes. The strength of carbide soft blanks is relatively low. When the high-hardness fixture or chuck directly contacts the soft blank, the workpiece is easily damaged or defective, resulting in scrapping, resulting in a large amount of material resource consumption.
[0004] When processing large carbide soft billets, a large core rod needs to be prepared, resulting in high production costs. When processing carbide soft billets, the weight of the core rod increases due to the size, resulting in the overall weight of the workpiece being too large and difficult to clamp. In addition, when using a heavy fixture for installation, it is easy to damage the workpiece or defects, resulting in scrapping and other problems. Utility Model Content
[0005] The utility model aims to overcome the shortcomings of the prior art and provide a clamp for machining large-sized ring-type hard alloy soft blanks.
[0006] The purpose of the utility model is achieved through the following technical solutions:
[0007] A fixture used for processing large-sized ring-type carbide soft blanks, characterized by: comprising a core shaft, two annular pressure plates and a plurality of screws, the left annular pressure plate and the right annular pressure plate are relatively sleeved and matched on the core shaft, the annular pressure plate comprises a supporting section, a shoulder section and a matching section which are connected in sequence along the axial direction, the outer diameter of the supporting section of the left annular pressure plate and the outer diameter of the supporting section of the right annular pressure plate match the inner diameter of the workpiece to support the workpiece, a plurality of screws pass through the left annular pressure plate and the right annular pressure plate axially and are locked by nuts to form a clamp for the workpiece, the matching sections of the left annular pressure plate and the right annular pressure plate are provided with radial locking holes, the locking screws are screwed into the radial locking holes to lock the left annular pressure plate and the right annular pressure plate on the core shaft.
[0008] Furthermore, in the above-mentioned fixture for processing large-sized ring-type hard alloy soft blanks, the left annular pressure plate and the right annular pressure plate are evenly spaced apart with four screw holes along the circumferential direction, and four screws pass through the screw holes, and their two ends are locked by nuts.
[0009] Furthermore, in the above-mentioned fixture for processing large-sized ring-type hard alloy soft blanks, the matching section of the left annular pressure plate and the matching section of the right annular pressure plate are evenly spaced and provided with four radial locking holes.
[0010] Furthermore, in the above-mentioned fixture for processing large-sized ring-type hard alloy soft blanks, the left annular pressing plate and the right annular pressing plate are made of metal or POM plastic.
[0011] Furthermore, in the above-mentioned fixture for processing large-sized ring-type hard alloy soft blanks, the core shaft is a hollow structure and is made of metal.
[0012] Furthermore, in the above-mentioned fixture for machining large-sized ring-type cemented carbide soft blanks, the outer diameter of the left annular pressure plate support section and the outer diameter of the right annular pressure plate support section are clearance-matched with the inner diameter of the workpiece.
[0013] Compared with the prior art, the utility model has significant advantages and beneficial effects, which are specifically embodied in the following aspects:
[0014] ① The utility model has a simple structure, easy to obtain components, a light clamping method, bolt fastening, stable clamping of the product, and can complete the processing of countersinks and appearance in one clamping;
[0015] ② For workpieces of different sizes, the clamping can be satisfied by replacing the annular pressure plates of different sizes and specifications, without replacing the mandrel. When processing large carbide soft blanks, there is no need to prepare a large mandrel, so as to achieve a larger clamping range and avoid the problem of difficult clamping;
[0016] ③ Greatly reduce repeated clamping labor, improve efficiency, flexible combination, suitable for clamping workpieces with different inner hole sizes.
[0017] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the specific implementation of the utility model. The purpose and other advantages of the utility model can be achieved and obtained by the structures specifically pointed out in the written description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 : A schematic diagram of the main view of the utility model;
[0020] Figure 2 : Schematic diagram of the utility model when no workpiece is clamped;
[0021] Figure 3 : A schematic diagram of the utility model in a clamped workpiece state. DETAILED DESCRIPTION
[0022] The technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, rather than all the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiment of the utility model. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the utility model.
[0023] It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. At the same time, in the description of the utility model, directional terms and order terms are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0024] like Figures 1 to 3 As shown, a fixture for processing large-sized ring-type cemented carbide soft blanks comprises a core shaft 1, two annular pressure plates 2 and a plurality of screw rods 3. The left annular pressure plate and the right annular pressure plate are relatively sleeved and matched on the core shaft 1. The annular pressure plate comprises a supporting section, a shoulder section and a matching section which are sequentially connected along the axial direction. The outer diameter of the shoulder section is larger than the outer diameter of the supporting section and the outer diameter of the matching section. The outer diameter of the supporting section of the left annular pressure plate and the outer diameter of the supporting section of the right annular pressure plate match the inner diameter of the workpiece 6 to support the workpiece 6. The side of the shoulder section is used to press against the side of the workpiece 6. The plurality of screw rods 3 axially pass through the left annular pressure plate and the right annular pressure plate and are locked by nuts 4 to form a clamp for the workpiece 6. The matching sections of the left annular pressure plate and the right annular pressure plate are provided with radial locking holes. The locking screws 5 are screwed into the radial locking holes to lock the left annular pressure plate and the right annular pressure plate on the core shaft 1.
[0025] The left annular pressure plate and the right annular pressure plate are evenly spaced with four screw holes along the circumferential direction, and four screws pass through the screw holes, and their two ends are locked by nuts. The mating section of the left annular pressure plate and the mating section of the right annular pressure plate are evenly spaced with four radial locking holes. The left annular pressure plate and the right annular pressure plate are made of metal or POM plastic.
[0026] The core shaft 1 is designed as a hollow structure to reduce weight, and is made of metal.
[0027] The outer diameter of the left annular pressure plate supporting section and the outer diameter of the right annular pressure plate supporting section are in clearance fit with the inner diameter of the workpiece 6 .
[0028] In specific applications, the core shaft 1 passes through the left annular pressure plate and the right annular pressure plate, and there is a matching clearance between the outer diameter of the annular pressure plate and the inner hole of the workpiece 6, which is used to support the workpiece 6; the screw rod 3 passes through the left annular pressure plate and the right annular pressure plate, and the nut 4 is screwed into the left annular pressure plate and the right annular pressure plate to clamp the workpiece 6; the locking screw 5 is screwed into the radial locking hole (threaded hole) to connect the core shaft 1, the annular pressure plate 2, the screw rod 3, and the workpiece 6 together, and the two ends of the core shaft 1 are clamped on the equipment claws to complete the clamping.
[0029] For workpieces 6 of different sizes, the clamping can be satisfied by replacing annular pressure plates of different sizes and specifications without replacing the mandrel. When processing large carbide soft blanks, there is no need to prepare a large core rod, so a larger clamping range can be achieved, avoiding the problem of difficult clamping.
[0030] In summary, the utility model has a simple structure, easy to obtain components, light clamping method, bolt fastening, stable clamping product, and can complete the processing of countersink and appearance in one clamping. It greatly reduces repeated clamping labor, improves efficiency, and has flexible combination methods, which is suitable for clamping workpieces with different inner hole sizes.
[0031] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model. It should be noted that similar numbers and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.
[0032] The above is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention.
[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used 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. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
Claims
1. A fixture used for processing large ring-type carbide soft blanks, characterized by: The invention comprises a core shaft (1), two annular pressure plates (2) and a plurality of screw rods (3). The left annular pressure plate and the right annular pressure plate are relatively sleeved and matched on the core shaft (1). The annular pressure plate comprises a support section, a shoulder section and a matching section which are arranged in sequence along the axial direction. The outer diameter of the support section of the left annular pressure plate and the outer diameter of the support section of the right annular pressure plate match the inner diameter of the workpiece (6) to support the workpiece (6). The plurality of screw rods (3) pass through the left annular pressure plate and the right annular pressure plate along the axial direction and are locked by nuts (4) to form a clamp for the workpiece (6). The matching sections of the left annular pressure plate and the right annular pressure plate are provided with radial locking holes. The locking screws (5) are screwed into the radial locking holes to lock the left annular pressure plate and the right annular pressure plate on the core shaft (1).
2. The fixture for machining large ring-type hard alloy soft blanks according to claim 1 is characterized in that: The left annular pressing plate and the right annular pressing plate are evenly spaced apart with four screw holes along the circumferential direction. Four screws pass through the screw holes, and two ends of the screws are locked by nuts.
3. The fixture for machining large ring-type hard alloy soft blanks according to claim 1 is characterized in that: The matching section of the left annular pressing plate and the matching section of the right annular pressing plate are evenly spaced and provided with four radial locking holes.
4. The fixture for machining large ring-type hard alloy soft blanks according to claim 1 or 2, characterized in that: The left annular pressing plate and the right annular pressing plate are made of metal or POM plastic.
5. The fixture for machining large ring-type hard alloy soft blanks according to claim 1 is characterized in that: The core shaft (1) is a hollow structure and is made of metal.
6. The fixture for machining large ring-type hard alloy soft blanks according to claim 1 is characterized in that: The outer diameter of the left annular pressure plate support section and the outer diameter of the right annular pressure plate support section are clearance-matched with the inner diameter of the workpiece (6).