Radial drilling and reaming processing auxiliary device for curved surface body type parts

Abstract

The utility model relates to a kind of radial drilling and reaming hole processing auxiliary devices of curved surface body class parts, comprising: clamping body (1), it has the base body part for installation positioning;Positioning shaft (2), it is along axial and is arranged in the center hole of the clamping body (1) and the curved surface body class part to be processed, for the radial positioning of part;At least one compression nut and washer are arranged on the positioning shaft (2), and the part is axially compressed on the positioning end surface of the clamping body (1);At least one drill sleeve, it is detachably installed on the clamping body (1).Utilize the device can complete the quick clamping of curved surface body class part radial hole when processing, can simplify the clamping mode of part when processing, reduce the clamping time of part and improve the machining accuracy of part, and then realize the quick clamping positioning of curved surface body class part and the efficient, high-precision processing of two radial holes.

Description

Technical Field

[0001] This utility model belongs to the field of machining curved surface parts, and specifically relates to an auxiliary device for radial drilling and reaming of curved surface parts. Background Technology

[0002] Curved surface parts are irregularly shaped, making clamping difficult. Currently, a group clamping method is used to drill and ream holes for these parts. The clamps are large and inconvenient to operate. Each part needs to be drilled and reamed twice, which is time-consuming and labor-intensive. Furthermore, radial holes are prone to deviation, affecting machining accuracy, resulting in poor product quality and low machining efficiency.

[0003] Currently, radial drilling and reaming of curved parts mostly employs a clamping method. Two drilling templates and a pressure plate are fixed on a base plate, and the pressure plate holds the part in place for drilling and reaming. Because the hole is a radial through hole, it requires machining on both sides, necessitating the clamping fixture to be flipped twice. However, the combined clamping fixture is large and heavy, resulting in time-consuming and labor-intensive processing, low efficiency, and poor product quality. Specifically: 1) Due to the difference in positioning reference, the positional accuracy of the radial holes cannot meet the requirements when machining with a combination fixture, requiring multiple reworks, resulting in low machining efficiency and poor product quality. 2) Due to the irregular shape of the parts, clamping and positioning the parts is difficult; 3) Each time a part is drilled and reamed, the fixture needs to be flipped twice, which is time-consuming and labor-intensive.

[0004] The bulky nature of the combination fixture makes flipping time-consuming and laborious, and also leads to poor positional accuracy when drilling and reaming parts, affecting machining accuracy. This results in low efficiency and poor quality in radial drilling and reaming of curved parts. Utility Model Content

[0005] This utility model provides an auxiliary device for radial drilling and reaming of curved parts. The technical problem to be solved is to address the problems of low efficiency and poor quality in radial drilling and reaming of curved parts, and to achieve efficient and high-precision machining of radial drilling and reaming of curved parts.

[0006] To solve the above technical problems, this utility model provides an auxiliary device for radial drilling and reaming of curved surface parts, characterized in that it includes: The clamping body (1) has a base portion for mounting and positioning; The positioning shaft (2) passes through the center hole of the clamping body (1) and the curved surface part to be processed along the axial direction, and is used to radially position the part; At least one clamping nut and washer are fitted on the positioning shaft (2) to axially press the part against the positioning end face of the clamp body (1); At least one drill bushing is detachably mounted on the fixture (1), and the central axis of its guide hole intersects the axis of the positioning shaft (2) perpendicularly in space, for guiding the tool to perform radial drilling and reaming on the part.

[0007] Preferably, the clamping body (1) is a U-shaped structure, including a base part and at least one arm part extending from the base part, the positioning shaft (2) is inserted through the base part, and the drill sleeve is installed in a preset mounting hole on the arm part.

[0008] Preferably, the U-shaped structure of the clamping body (1) has two opposing arms, each of which is provided with a mounting hole for mounting the drill sleeve.

[0009] Preferably, the base of the clamping body (1) is provided with a set screw (5) for fixing the drill bushing.

[0010] Preferably, the positioning shaft (2) is a stepped shaft structure, which includes a connecting section for connecting with the clamping body (1), a positioning section for passing through the curved body-like part, and a threaded section for installing the clamping nut and washer.

[0011] Preferably, the positioning section of the positioning shaft (2) is provided with a radial through hole or groove, the position of which corresponds to the guide hole of the drill bushing.

[0012] Preferably, the base of the clamping body (1) is provided with two parallel clamping planes for stable clamping by the machine tool vise.

[0013] Preferably, the drill bushing includes a drill bushing (6) for guiding the drill bit and a reaming bushing (7) for guiding the reamer.

[0014] Preferably, the device is fixed to the machine tool workbench by its clamping body (1).

[0015] Beneficial effects: This utility model achieves a reliable connection between the device and the machine tool by clamping the worktable with a vise, axial positioning by using a positioning shaft and the end face of the clamp body, and pressing the parts with nuts and washers, thus realizing the rapid clamping and positioning of curved parts and the efficient and high-precision machining of two radial holes. Attached Figure Description

[0016] Figure 1 Schematic diagram of the structure of this utility model Figure 2 Schematic diagram of the clamping body structure; Figure 3 Schematic diagram of the positioning shaft structure; The components are: 1. clamp body; 2. positioning shaft; 3. nut; 4. washer; 5. screw; 6. drill bushing; 7. drill bushing; 8. washer; 9. nut. Detailed Implementation

[0017] To make the purpose, content and advantages of this utility model clearer, the specific embodiments of this utility model will be described in further detail below.

[0018] This utility model proposes an auxiliary device for radial drilling and reaming of curved parts, including a clamping body, a positioning shaft, a nut, a washer, a drill bushing, and a screw; The clamping body 1 is a U-shaped structure consisting of a left cuboid and two cuboids arranged sequentially on the top and bottom. The left cuboid has a cylindrical hole at its center for mounting the positioning shaft 2, and a threaded hole at the top and bottom along the radial direction of the center axis for mounting screws 5. The screws are used to press the drill bushing together. The front and rear end faces are used for clamping with a vise. The top cuboid has a cylindrical hole for mounting the drill bushing 6 or 7. The bottom cuboid has a cylindrical hole for mounting the drill bushing 6 or 7.

[0019] The positioning shaft 2 passes through the fixture body, the axial center hole of the curved part, and the washer from left to right, and its two ends are fixedly connected to the nut 9 respectively. The positioning shaft is composed of three cylindrical sections connected in sequence; the left cylinder is provided with external threads and is used to clamp curved parts through washer 8 and nut 9; the middle cylinder is used to install curved parts, and a cylindrical hole is provided in the radial direction of the cylinder to prevent the tool from damaging the middle cylinder when drilling and reaming; the right cylinder is provided with external threads and is connected to the clamping body 1 through nut 3 and washer 4.

[0020] How to use the auxiliary device for radial drilling and reaming of curved surface parts: Before use, clamp the left and right ends of the fixture body 1 with a vise. During machining, mount the curved part on the positioning shaft 2, with the left side of the curved part close to the end face of the fixture body 1, and the right side of the curved part being clamped by the washers 8 and nuts 9. Then, install the drill sleeve 6 into the cylindrical hole at the upper end of the fixture body 1 and tighten it with screws 5. Drill the hole with a drill bit, then remove the drill sleeve 6 and replace it with drill sleeve 7. Ream the hole with a reamer. Then, remove the device from the vise, flip the device over, and clamp the left and right ends of the fixture body 1 again with the vise. Then, install the drill sleeve 6 into the cylindrical hole at the upper end of the fixture body 1 and tighten it with screws 5. Drill the hole with a drill bit, then remove the drill sleeve 6 and replace it with drill sleeve 7. Ream the hole with a reamer. Finally, the radial drilling and reaming machining of the curved part is completed.

[0021] Key points of this utility model 1. By ensuring that the end face of the fixture is perpendicular to the outer circle of the positioning shaft, good form and position tolerances can be achieved, resulting in good positional accuracy during part machining and improved product quality; 2. By positioning the fixture end face, positioning shaft and part hole, it is possible to easily load and unload irregularly shaped parts, thus improving processing efficiency; 3. The entire device is small in size and light in weight. When clamped with a vise, it is easy to flip over, saving time and effort.

[0022] This device enables rapid clamping of radial holes in curved parts during machining, simplifies the clamping method, reduces clamping time, and improves machining accuracy, thereby achieving rapid clamping and positioning of curved parts and efficient, high-precision machining of two radial holes.

[0023] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An auxiliary device for radial drilling and reaming of curved surface parts, characterized in that, include: The clamping body (1) has a base portion for mounting and positioning; The positioning shaft (2) passes through the center hole of the clamping body (1) and the curved surface part to be processed along the axial direction, and is used to radially position the part; At least one clamping nut and washer are fitted on the positioning shaft (2) to axially press the part against the positioning end face of the clamp body (1); At least one drill bushing is detachably mounted on the fixture (1), and the central axis of its guide hole intersects the axis of the positioning shaft (2) perpendicularly in space, for guiding the tool to perform radial drilling and reaming on the part.

2. The auxiliary device for radial drilling and reaming of curved surface parts according to claim 1, characterized in that, The clamping body (1) is a U-shaped structure, including a base part and at least one arm part extending from the base part. The positioning shaft (2) passes through the base part, and the drill sleeve is installed in a preset mounting hole on the arm part.

3. The auxiliary device for radial drilling and reaming of curved surface parts according to claim 2, characterized in that, The U-shaped structure of the clamping body (1) has two opposing arms, each of which has a mounting hole for mounting the drill sleeve.

4. The auxiliary device for radial drilling and reaming of curved surface parts according to claim 2 or 3, characterized in that, The base of the clamping body (1) is provided with set screws (5) for fixing the drill bushing.

5. The auxiliary device for radial drilling and reaming of curved surface parts according to claim 1, characterized in that, The positioning shaft (2) is a stepped shaft structure, which includes a connecting section for connecting with the clamping body (1), a positioning section for passing through the curved body-like parts, and a threaded section for installing the clamping nut and washer.

6. The auxiliary device for radial drilling and reaming of curved surface parts according to claim 5, characterized in that, The positioning section of the positioning shaft (2) is provided with a radial through hole or groove, the position of which corresponds to the guide hole of the drill bushing.

7. The auxiliary device for radial drilling and reaming of curved surface parts according to claim 1, characterized in that, The base of the clamping body (1) has two parallel clamping planes for stable clamping by the machine tool vise.

8. The auxiliary device for radial drilling and reaming of curved surface parts according to claim 1, characterized in that, The drill bushing includes a drill bushing (6) for guiding the drill bit and a reaming bushing (7) for guiding the reamer.

9. The auxiliary device for radial drilling and reaming of curved surface parts according to claim 1, characterized in that: The device is fixed to the machine tool workbench by its clamping body (1).

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