Profiling pressing tool

Abstract

The utility model relates to the technical field of machining and instrument machining, and discloses a profiling pressing tool which comprises a zero-point positioning bottom plate, a clamp body and a pressing plate, and the clamp body is installed on the upper portion of the zero-point positioning bottom plate. A product clamping end at the top of the clamp body and the clamping direction of a product blank are machined to be in a profiling mode, a notch is formed in the product clamping end, and a fixing lug which corresponds to the notch in position and can be arranged in the notch is reserved on the product blank. The number of the pressing plates is the same as that of the notches, each pressing plate is provided with a through hole, a pressing plate threaded hole is correspondingly formed in the position below each notch in the clamp body, and the pressing bolts sequentially penetrate through the through holes and the corresponding pressing plate threaded holes. According to the utility model, the consumption of raw materials is reduced, all characteristics are processed at one time, multi-procedure clamping is reduced, product deformation caused by clamping is avoided, and the size requirement and the function requirement of the product are ensured more easily, so that the machining qualification rate is improved, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical fields of machining and instrument processing, and more specifically, to a profiling pressing tooling. Background Art

[0002] A vise is a general fixture used to clamp workpieces. It is installed on a workbench to firmly clamp the workpieces to be machined. At present, the blank sheet materials of the products to be machined are all clamped and fixed by a vise to maintain stability during the machining process, so as to facilitate various operations.

[0003] However, there are the following defects in using a vise to clamp the product with a reserved clamping position for machining: since a part of the machining position of the blank sheet material of the product will be covered by the clamping opening of the vise, it is necessary to perform multiple processes and multiple clamping of the blank sheet material to achieve the complete machining of all surfaces of the final product. Multiple clamping will not only have multiple positioning errors and machining deformations, but also have a long machining turnover time. At the same time, it will also consume more raw materials and increase the wear of cutting tools.

[0004] Therefore, it is necessary to provide a new workpiece clamping tooling to solve the technical problems such as multiple clamping positioning errors, deformation, large consumption of raw materials, large wear of cutting tools and long machining turnover time during the instrument machining process. Summary of the Utility Model

[0005] In view of this, the utility model provides a profiling pressing tooling, and its specific technical solution is as follows:

[0006] A profiling pressing tooling includes a zero-point positioning bottom plate, a fixture main body and a pressing plate. The fixture main body is detachably installed on the upper part of the zero-point positioning bottom plate. The product clamping end at the top of the fixture main body is machined into a profile corresponding to the clamping orientation of the product blank. Several notches are opened on the product clamping end, and several fixing lugs corresponding to the positions of the notches and capable of being placed in the notches are reserved on the product blank. A fixing hole is opened on each of the two outer notches, and a fixing pin hole is opened on each of the two outer fixing lugs. A fixing pin shaft sequentially passes through the fixing pin hole and the fixing hole to fix the product blank on the fixture main body. The number of the pressing plates is the same as that of the notches. A through hole is opened on the plane of each pressing plate, and a pressing plate threaded hole is correspondingly opened at the position below each notch in the fixture main body. A pressing bolt sequentially passes through the through hole and the corresponding pressing plate threaded hole to press the fixing lug in the notch by the pressing plate.

[0007] Preferably, the zero-point positioning bottom plate is installed on the workbench, and the zero-point positioning bottom plate is connected to the workbench by four pull studs respectively threadedly connected to the four corner positions thereof.

[0008] Preferably, a plurality of first threaded holes are formed in the zero-point positioning bottom plate, and second threaded holes corresponding to the positions of the first threaded holes are formed in the bottom of the fixture body. A connecting bolt sequentially passes through the first threaded hole and the second threaded hole to fix the fixture body on the zero-point positioning bottom plate.

[0009] Preferably, a plurality of first positioning pin holes are further formed in the zero-point positioning bottom plate. The first positioning pin holes are arranged alternately with the first threaded holes. Second positioning pin holes corresponding to the positions of the first positioning pin holes are formed in the bottom of the fixture body. A positioning pin shaft sequentially passes through the first positioning pin hole and the second positioning pin hole to position the installation direction and position of the fixture body.

[0010] Preferably, the first threaded hole is a countersunk hole.

[0011] Preferably, the through hole is an oblong hole, and the long axis direction of the oblong hole is consistent with the direction in which the pressing plate approaches or moves away from the notch.

[0012] Preferably, a step protruding towards the fixture body is provided on the inner side surface of the end of the pressing plate away from the fixed lug.

[0013] Preferably, a 1-2 mm margin is left on each side of the product blank according to the product contour to be machined, and the outer shape is cut.

[0014] In the utility model, a certain number of fixed lugs (also called process feet) are reserved on the product blank, corresponding notches are formed on the product clamping end at the top of the fixture body, and then the fixed lugs on the product blank are fixed and locked by a pressing bolt, a pressing plate and a fixed pin shaft, so as to lock the product blank. After all features are machined at one time, the fixed lugs on the product blank are removed completely.

[0015] By adopting the above technical scheme, the utility model realizes machining all features at one time, reduces the clamping in multiple processes, also avoids the product deformation caused by clamping the outer shape of the blank in the common machining method, avoids the clamping error caused by multiple clamps, reduces the consumption of raw materials, and it is easier to ensure the product size requirements and functional requirements by adopting one-time machining, thereby improving the qualified rate of machining and reducing the manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only the embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0017] Figure 1 This is an exploded view of the structure of a profiling pressing tooling of the present utility model.

[0018] Figure 2 This is an overall structure diagram of a profiling pressing tooling of the present utility model.

[0019] Figure 3 This is a structure diagram of the fixture main body in the present utility model.

[0020] Figure 4 This is a structure diagram of the blank part of the product corresponding to the present utility model.

[0021] Figure 5 This is a structure diagram of the pressing plate in the present utility model.

[0022] In the figure: 1 - zero-point positioning base plate, 2 - fixture main body, 3 - pressing plate, 4 - product blank part, 5 - notch, 6 - fixed lug, 7 - fixed hole, 8 - fixed pin hole, 9 - fixed pin shaft, 10 - through hole, 11 - pressing plate threaded hole, 12 - pressing bolt, 13 - pull stud, 14 - threaded hole 1, 15 - threaded hole 2, 16 - connecting bolt, 17 - positioning pin hole 1, 18 - positioning pin hole 2, 19 - positioning pin shaft, 20 - step. Detailed implementation manners

[0023] The following details the embodiments of the present utility model. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

[0025] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0026] Embodiment:

[0027] The utility model provides a profiling pressing tooling, which is more stable in the numerical control machining of instruments, saves costs, and improves the quality and efficiency of machining.

[0028] Refer to Figure 1 、 Figure 2 , the profiling pressing tooling includes a zero-point positioning bottom plate 1, a fixture body 2 and a pressing plate 3.

[0029] The zero-point positioning bottom plate 1 is installed on the workbench. Specifically, the zero-point positioning bottom plate 1 is connected to the workbench through four pull studs 13 respectively threadedly connected to the four corner positions thereof.

[0030] The fixture body 2 is detachably installed on the upper part of the zero-point positioning bottom plate 1. The utility model adopts a detachable connection method between the zero-point positioning bottom plate 1 and the fixture body 2. The purpose is that the staff can select and install fixture bodies 2 of different specifications according to the size of the product to be processed, that is, the zero-point positioning bottom plate 1 is a general structure, and only the fixture body 2 needs to be replaced at any time according to the actual situation.

[0031] In a further specific embodiment, as Figure 1 、 Figure 3 shown, several first threaded holes 14 are formed on the zero-point positioning bottom plate 1, and second threaded holes 15 corresponding to the positions of the first threaded holes 14 are formed at the bottom of the fixture body 2. The connecting bolts 16 sequentially pass through the first threaded holes 14 and the second threaded holes 15 to fix the fixture body 2 on the zero-point positioning bottom plate 1.

[0032] Furthermore, several first positioning pin holes 17 are formed on the zero-point positioning bottom plate 1, the first positioning pin holes 17 are arranged in a staggered manner with the first threaded holes 14, and second positioning pin holes 18 corresponding to the positions of the first positioning pin holes 17 are formed at the bottom of the fixture body 2. The positioning pin shafts 19 sequentially pass through the first positioning pin holes 17 and the second positioning pin holes 18 to position the installation direction and position of the fixture body 2.

[0033] In this embodiment, a total of three first threaded holes 14 and two first positioning pin holes 17 are provided on the zero-point positioning bottom plate 1. Correspondingly, a total of three second threaded holes 15 and two second positioning pin holes 18 are provided at the bottom of the fixture body 2. At the same time, the first threaded holes 14 are also countersunk holes, which can avoid the protrusion of the connecting bolts 16 and ensure the flatness of the installation plane on the zero-point positioning bottom plate 1.

[0034] The product clamping end at the top of the fixture body 2 is profiled with the clamping orientation of the product blank to avoid collision and overcutting phenomena during the machining feed.

[0035] As Figure 3 、 Figure 4As shown, several notches 5 are provided on the product clamping end, and several fixing lugs 6 corresponding to the positions of the notches and capable of being placed in the notches 5 are reserved on the product blank 4. In this embodiment, the number of notches 5 and fixing lugs 6 is three each; a fixing hole 7 is provided on each of the two outer notches 5, and a fixing pin hole 8 is provided on each of the two outer fixing lugs 6. The fixing pin shaft 9 passes through the fixing pin hole 8 and the fixing hole 7 in sequence to fix the product blank 4 on the fixture body 2.

[0036] The number of pressure plates 3 is the same as that of the notches 5. A through hole 10 is provided on the plane of each pressure plate 3, and a pressure plate threaded hole 11 is correspondingly provided at the position below each notch 5 in the fixture body 2. The pressing bolt 12 passes through the through hole 10 and the corresponding pressure plate threaded hole 11 in sequence, so that the pressure plate 3 presses the fixing lug 6 in the notch 5, that is, presses the product blank 4 on the fixture body 2.

[0037] In a further specific embodiment, the through hole 10 is an oblong hole, and the long axis direction of the oblong hole is the same as the direction in which the pressure plate 3 approaches or moves away from the notch 5. By designing the oblong hole in the present utility model, when disassembling and clamping, the pressing bolt 12 does not need to be completely withdrawn. That is, by loosening the pressing bolt 12 and controlling the pressure plate 3 to move away from the notch 5, the pressing restriction on the fixing lug 6 can be released without screwing out the whole pressing bolt 12, and then removing the two fixing pin shafts 9 at the notch 5, the product blank 4 can be directly disassembled from the tooling.

[0038] In a further specific embodiment, as Figure 5 shown, a step 20 protruding towards the fixture body is provided on the inner side surface of the end of the pressure plate 3 away from the fixing lug. This step 20 serves as a fulcrum. Because generally after the fixing lug 6 on the product blank 4 is embedded into the notch 5, the outer side surface of the fixing lug 6 will slightly protrude out of the fixture body 2 a little bit, and by providing the step 20 on the pressure plate 3, it can be ensured that the pressure plate 3 can stably press and fix the product blank 4.

[0039] The working principle of a profiling pressing tooling of the present utility model is as follows:

[0040] First, a certain number of fixing lugs 6 (generally different numbers of fixing lugs are reserved according to the size of the product) are reserved on the product blank 4 to be processed, and corresponding notches 5 are opened on the product clamping end at the top of the fixture body 2. Then, the product blank 4 with the fixing lug 6 is fixed and locked through the pressing bolt 12, the pressure plate 3 and the fixing pin shaft 9. The product blank 4 will cut the outer shape with a margin of 1 - 2 mm on one side according to the product contour to be processed. After all features are processed at one time, all the fixing lugs 6 on the product blank 4 are removed.

[0041] The utility model reduces the consumption of raw materials, realizes the one-time processing of all features, reduces the clamping in multiple processes, and also avoids the deformation of products caused by clamping. The one-time processing can more easily ensure the dimensional requirements and functional requirements of products, thereby improving the qualified rate of machining and reducing the manufacturing cost (the cost includes material cost, cutting tool wear cost, etc.).

[0042] In this specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple. For the relevant parts, reference can be made to the description in the method section.

[0043] The above description of the disclosed embodiments enables those skilled in the art to implement or use the utility model. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A contour pressing tool, characterized in that: The tool holder is a plurality of notches, and the plurality of fixing plates are provided on the tool holder so that the fixing plates can be placed in the tool holder.

2. A contour pressing tool according to claim 1, characterized in that: The zero point positioning base plate is installed on the workbench, and the zero point positioning base plate is connected to the workbench through four pull nails which are respectively threadedly connected at the four corners thereof.

3. A contour pressing tool according to claim 1, characterized in that: The zero point positioning base plate is provided with a plurality of threaded holes 1, and the bottom of the fixture body is provided with threaded holes 2 corresponding to the positions of the threaded holes 1. The connecting bolts pass through the threaded holes 1 and 2 in sequence to fix the fixture body to the zero point positioning base plate.

4. A contour pressing tool according to claim 3, characterized in that: The zero-point positioning base plate is also provided with a plurality of positioning pin holes 1, and the positioning pin holes 1 are staggered with the threaded holes 1. The bottom of the fixture body is provided with positioning pin holes 2 corresponding to the positions of the positioning pin holes 1. The positioning pin shaft passes through the positioning pin holes 1 and the positioning pin holes 2 in sequence to position the installation direction and position of the fixture body.

5. A contour pressing tool according to claim 3, characterized in that: The first threaded hole is a countersunk hole.

6. A contour pressing tool according to claim 1, characterized in that: The through hole is a waist-shaped hole, and the long axis direction of the waist-shaped hole is consistent with the direction in which the pressing plate approaches or moves away from the notch.

7. A contour pressing tool according to claim 1, characterized in that: A step protruding toward the clamp body is provided on the inner side surface of the pressing plate away from the fixed lever.

8. The contour pressing tool according to claim 1, characterized in that: The product blank should be cut with a 1-2mm margin on one side according to the contour of the product to be processed.

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