Bidirectional stepped hole coaxial positioning machining device

Abstract

The utility model discloses a bidirectional stepped hole coaxial positioning processing device, and particularly relates to the technical field of bidirectional stepped hole positioning processing, the positioning processing device is used for fixing a bidirectional stepped hole piece, the positioning processing device comprises a base, a gantry frame, a positioning halfpace and a side pressing plate, the base is of a flat plate structure, the gantry frame is composed of two stand columns and a cross beam, positioning grooves are formed in the inner sides of the stand columns, the positioning grooves in the two sides are used for installing bidirectional table hole pieces, kidney-shaped side holes are formed in the side pressing plates, the kidney-shaped side holes are connected with connecting holes in the front sides of the stand columns through screws or screws, and the bottom faces of the side pressing plates make contact with the upper plane of the positioning halfpace. Compared with the prior art, the positioning machining device can reliably fix a machined part by utilizing the gantry frame, the side pressing plate and the matching relation between the positioning groove and the outer contour of the bidirectional stepped hole part, meets the machining requirements of the bidirectional stepped hole part, avoids deformation of a product in the machining process, ensures the dimensional precision, the form and location tolerance and the coaxiality, and improves the machining efficiency. And the yield is obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bidirectional step hole positioning and processing, in particular to a bidirectional step hole coaxial positioning and processing device. Background Art

[0002] The bidirectional step hole coaxial part is a key part of a certain military product. It has a square shell in the middle and a step hole structure on both sides. The shell is installed with electronic components for search and detection. A bidirectional step hole is designed in the center of the part to match the corresponding bearing. After the assembly is completed, it rotates around this axis. In the existing processing scheme, technicians often use vises to fix it. Since the part is a thin-walled part, during the mechanical processing, the force point of the jaws is concentrated, the clamping coaxiality is poor, and it is easy to deform. The problem leads to a high processing scrap rate. In addition, since the product is a bidirectional step hole, the previous processing is to process the single-side hole separately, and then rely entirely on the skill level of the personnel to correct it, and then process the step hole on the other side. There are many uncertain factors and it is easy to produce errors. After processing, the coaxiality of the bidirectional step hole is often difficult to guarantee, and it will also cause out-of-tolerance consequences for other related geometric tolerance requirements. How to reliably fix the bidirectional step hole coaxial part to ensure its processing dimensional accuracy, geometric tolerance and coaxiality requirements has become a technical problem in this field. Utility Model Content

[0003] In view of this, the utility model proposes a coaxial positioning processing device for a bidirectional step hole. The positioning processing device utilizes the matching relationship between the gantry frame and the side pressure plate, as well as the positioning groove and the outer contour of the bidirectional step hole part, and can reliably fix the processing part to meet the processing requirements of the bidirectional step hole part.

[0004] The utility model solves the above problems through the following technical means:

[0005] The tool is provided with a plurality of bottom holes, the bottom holes of which are symmetrically arranged on the flat plate structure, and the bottom holes are used to install the gantry frame and the positioning ladder platform; the gantry frame is composed of two columns and a crossbeam, the inner sides of the columns are provided with positioning grooves, the positioning grooves on both sides are used to install the two-way platform hole parts, and waist-shaped top holes are provided at both ends of the crossbeam, and the waist-shaped top holes and the connecting holes at the top of the columns are connected by screws or screws; a plurality of horizontal mounting holes are provided on the inclined surface of the positioning ladder platform, and the mounting holes are connected to the connecting holes on the front side of the columns by screws or screws; a waist-shaped side hole is provided on the side pressure plate, and the waist-shaped side hole is connected to the connecting holes on the front side of the columns by screws or screws, and the bottom surface of the side pressure plate contacts the upper plane of the positioning ladder platform.

[0006] Preferably, the bidirectional platform hole component consists of a square cavity, a large step hole and a small step hole, wherein: the large step hole and the small step hole are coaxially arranged on the front and rear sides of the square cavity respectively, and the interiors of the large step hole and the small step hole are connected to the internal space of the cavity; the left and right sides of the square cavity are open, a square hole is opened on the top of the square cavity, a rotating shaft seat is arranged at the inner center of the square cavity, an annular groove is arranged on the inner end surface of the rotating shaft seat, and a plurality of mounting cavities are arranged between the square hole and the rotating shaft seat.

[0007] Preferably, a flange is provided on the outer end surface of the large step hole.

[0008] Preferably, a plurality of concentric annular terraces are provided on the outer side of the small step hole.

[0009] The utility model provides a bidirectional step hole coaxial positioning processing device with the following beneficial effects:

[0010] 1) The positioning processing device utilizes the matching relationship between the gantry frame and the side pressure plate, as well as the positioning groove and the outer contour of the two-way step hole part, which can reliably fix the workpiece, meet the processing requirements of the two-way step hole part, avoid deformation of the product during the processing, ensure dimensional accuracy and form and position tolerance, and significantly improve the yield rate.

[0011] 2) In the positioning processing device, multiple groups of bottom holes or waist-shaped holes can be set on the base. Since the waist-shaped top holes are set on the crossbeam, the distance between the columns can be flexibly adjusted to adapt to two-way table hole parts of different sizes. In addition, the setting of waist-shaped side holes can facilitate the adjustment of the position and extension length of the side pressure plate, and facilitate the disassembly and assembly of the two-way table hole parts.

[0012] 3) The device can be used to achieve one-time clamping and complete bidirectional step hole processing, greatly shortening the processing cycle and improving production efficiency, with significant effects in mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is a schematic diagram of the application of the utility model;

[0015] Figure 2 It is the installation diagram of the utility model;

[0016] Figure 3 It is a schematic diagram of the gantry frame structure of the utility model;

[0017] Figure 4 It is a schematic diagram of the front structure of the two-way table hole member in the utility model;

[0018] Figure 5 It is a schematic diagram of the back structure of the two-way table hole component in the utility model.

[0019] In the figure, 1-bidirectional platform hole piece, 101-square cavity, 102-large step hole, 103-small step hole, 104-spindle seat, 105-ring groove, 106-installation cavity, 107-flange, 108-concentric ring platform, 2-base, 201-bottom hole, 3-gantry frame, 301-column, 302-beam, 303-positioning groove, 304-waist-shaped top hole, 305-connecting hole, 4-positioning ladder, 401-installation hole, 5-side pressure plate, 501-waist-shaped side hole. DETAILED DESCRIPTION

[0020] In the description of the present utility model, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are 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 therefore cannot be understood as a limitation on the present utility model. The terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0021] The present invention will be described in detail below with reference to the accompanying drawings.

[0022] like Figures 1 to 5 As shown, the two-way platform hole component 1 is a key part of a certain military product, with a square shell in the middle and step hole structures on both sides. The shell is installed with electronic components for search and detection. A two-way step hole is designed in the center of the component to cooperate with the corresponding bearing. After the assembly is completed, it rotates around this as the axis. Specifically, the two-way platform hole component 1 consists of a square cavity 101, a large step hole 102 and a small step hole 103, wherein: the large step hole 102 and the small step hole 103 are coaxially arranged on the front and back sides of the square cavity 101, respectively, and the insides of the large step hole 102 and the small step hole 103 are connected to the internal space of the cavity; the left and right sides of the square cavity 101 are open, and a square hole is opened on the top of the square cavity 101. A rotating shaft seat 104 is arranged at the inner center of the square cavity 101, and a through hole is arranged in the rotating shaft seat 104. An annular groove 105 is arranged on the inner end surface of the rotating shaft seat 104, and multiple installation cavities 106 are arranged between the square hole and the rotating shaft seat 104. In addition, a flange 107 is provided on the outer end surface of the large step hole 102 , and a plurality of concentric annular platforms 108 are provided on the outer side of the small step hole 103 .

[0023] In order to improve the processing quality and efficiency of the product, reliably fix the bidirectional step hole coaxial parts, and ensure the processing size accuracy, form and position tolerance and coaxiality requirements, the bidirectional step hole coaxial positioning processing device includes a base 2, a gantry frame 3, a positioning ladder 4 and a side pressure plate 5, wherein: the base 2 is a flat plate structure, and a plurality of bottom holes 201 are symmetrically arranged on the flat plate structure, and the bottom holes 201 are used to install the gantry frame 3 and the positioning ladder 4; the gantry frame 3 is composed of two columns 301 and a crossbeam 302, and the inner side of the column 301 is provided with a positioning groove 303, and the positioning grooves 303 on both sides are used Install the two-way platform hole piece 1, and set waist-shaped top holes 304 at both ends of the crossbeam 302, and the waist-shaped top holes 304 and the connecting holes 305 on the top of the column 301 are connected by screws or screws; a plurality of horizontal mounting holes 401 are set on the inclined surface of the positioning ladder 4, and the mounting holes 401 and the connecting holes 305 on the front side of the column 301 are connected by screws or screws; a waist-shaped side hole 501 is set on the side pressure plate 5, and the waist-shaped side hole 501 and the connecting hole 305 on the front side of the column 301 are connected by screws or screws, and the bottom surface of the side pressure plate 5 is in contact with the upper plane of the positioning ladder 4.

[0024] Specifically, the positioning processing device utilizes the matching relationship between the gantry frame and the side pressure plate, as well as the positioning groove and the outer contour of the two-way platform hole part, which can reliably fix the workpiece, meet the processing requirements of the two-way step hole part, avoid deformation of the product during the processing, ensure dimensional accuracy and form and position tolerances, and significantly improve the yield rate. In addition, in the positioning processing device, multiple groups of bottom holes or waist-shaped holes can be set on the base. Since the waist-shaped top holes are set on the crossbeam, the distance between the columns can be flexibly adjusted to accommodate two-way platform hole parts of different sizes. In addition, the setting of the waist-shaped side holes can facilitate the adjustment of the position and extension length of the side pressure plate, and facilitate the disassembly and assembly of the two-way platform hole parts. The use of this device can achieve one-time clamping and complete the two-way step hole processing, greatly shortening the processing cycle, improving production efficiency, and has a significant effect in mass production.

[0025] In actual work, the two-way step hole part 1 not only has extremely high requirements for the size accuracy of the two-way step hole, but also has a variety of overall shape and position tolerances, and the shape and position tolerance accuracy requirements of each part are relatively strict, especially the coaxiality requirement of the two-way step hole is only 0.015mm, and its accuracy will be related to the actual accuracy of the final assembly product, and play a vital role in the quality of the assembly product. The positioning processing device adopts a gantry structure as a whole, relying on its own quality to form a stable state, with the base as the reference, fastened to the equipment work surface, and the column is perpendicular to the bottom reference surface. Its verticality is required to be less than or equal to 0.012mm. After the four sides of the product are processed, the end face of the product fits with the positioning grooves on both sides of the gantry of the device, and the product is fastened with the pressure plate screws on both sides. When one side of the step hole is completed, there is no need to disassemble the product state. The workbench rotates 180°, and the step hole on the other side of the product is fine-processed by relying on high-level equipment accuracy. The use of this device not only effectively guarantees the high technical requirements of the coaxiality form and position tolerance of the bidirectional step hole, ensuring product quality, but also uses this device to complete the bidirectional step hole processing in one-time clamping, greatly shortening the processing cycle and improving production efficiency, with significant effects in mass production.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A bidirectional step hole coaxial positioning processing device, characterized in that: Used to fix a two-way platform hole piece (1), comprising a base (2), a gantry frame (3), a positioning ladder platform (4) and a side pressure plate (5), wherein: The base (2) is a flat plate structure, and a plurality of bottom holes (201) are symmetrically arranged on the flat plate structure, and the bottom holes (201) are used to install the gantry frame (3) and the positioning ladder platform (4); The gantry frame (3) is composed of two columns (301) and a crossbeam (302). The inner side of the column (301) is provided with a positioning groove (303). The positioning grooves (303) on both sides are used to install the two-way table hole parts (1). The two ends of the crossbeam (302) are provided with waist-shaped top holes (304). The waist-shaped top holes (304) and the connecting holes (305) at the top of the column (301) are connected by screws or bolts. A plurality of horizontal mounting holes (401) are provided on the inclined surface of the positioning ladder (4), and the mounting holes (401) are connected to the connecting holes (305) on the front side of the columns (301) by means of screws; The side pressure plate (5) is provided with a waist-shaped side hole (501), the waist-shaped side hole (501) is connected to the connection hole (305) on the front side of the column (301) by means of a screw or a screw, and the bottom surface of the side pressure plate (5) is in contact with the upper plane of the positioning ladder (4).

2. The bidirectional step hole coaxial positioning processing device according to claim 1, characterized in that: The bidirectional step hole component (1) is composed of a square cavity (101), a large step hole (102) and a small step hole (103), wherein: The large step hole (102) and the small step hole (103) are coaxially arranged on the front and rear sides of the square cavity (101), respectively, and the interiors of the large step hole (102) and the small step hole (103) are both connected to the internal space of the cavity; The square cavity (101) is open on both sides, a square hole is provided on the top of the square cavity (101), a rotating shaft seat (104) is provided at the inner center of the square cavity (101), an annular groove (105) is provided on the inner end surface of the rotating shaft seat (104), and a plurality of mounting cavities (106) are provided between the square hole and the rotating shaft seat (104).

3. The bidirectional step hole coaxial positioning processing device according to claim 2, characterized in that: A flange plate (107) is provided on the outer end surface of the large step hole (102).

4. The bidirectional step hole coaxial positioning processing device according to claim 3, characterized in that: A plurality of concentric annular terraces (108) are arranged outside the small step hole (103).

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