Clamp device for machining pipe nozzle

Abstract

The utility model discloses a fixture device for processing a pipe nozzle, which relates to the technical field of pipe nozzle processing and comprises a fixture base, an adjusting rotary seat is mounted on the fixture base through a plane adjusting mechanism, a fixed rotary table is rotatably mounted at the upper end of the adjusting rotary seat, and clamping guide seats are fixedly mounted on two sides of the upper end of the fixed rotary table. The center of the clamping guide seat is in threaded connection with a clamping screw rod, a clamping side plate is rotationally installed at the inward end of the clamping screw rod through a bearing, and an elastic clamping contact piece can be attached to the outer wall of the pipe nozzle through elastic deformation when making contact with the outer wall of the pipe nozzle, abuts against the outer wall of the pipe nozzle through an arc rubber head and is better attached to the outer wall of the pipe nozzle to be fixed. And the clamping effect and the stability of the clamp device on the pipe nozzle are improved. And through the arrangement of the plane adjusting mechanism and the adjusting rotating seat, the position and the angle of the clamped pipe nozzle can be adjusted, so that the machining requirement is met, and the machining requirement of the special-shaped pipe nozzle is met.

Description

Technical Field

[0001] This utility model relates to the field of nozzle processing technology, specifically to a clamping device for processing nozzles. Background Technology

[0002] A nozzle is a short tube connecting the outside or inside of a circular orifice, with a length 3 to 4 times the orifice diameter (d). Its shape can be cylindrical, converging, expanding, or streamlined. Machining the rotating surfaces of nozzles is challenging due to their irregular shape, making clamping on a conventional lathe difficult. However, using a CNC machining center would increase the machining cost.

[0003] In the current field of machining, the processing of nozzle-type parts typically relies on general-purpose vises or three-jaw chucks for clamping operations. For nozzles with more unusual shapes, engineers tend to use welded locating blocks to achieve their fixation.

[0004] However, traditional clamps often employ a planar structure for their clamping surface, which cannot effectively conform to the curved surfaces of irregularly shaped nozzles. Furthermore, clamping mechanisms typically only offer single-degree-of-freedom adjustment, making them ineffective at compensating for potential eccentricity errors that may occur during nozzle machining. Therefore, we propose a clamping device for machining nozzles. Utility Model Content

[0005] The purpose of this invention is to address the problem that traditional clamps often employ a planar structure in their clamping surface design, which cannot effectively conform to the curved surface of irregularly shaped nozzles. Furthermore, clamping mechanisms typically only have a single degree of freedom of adjustment, making it impossible to effectively compensate for potential eccentricity errors that may occur during nozzle processing. This invention provides a clamping device for processing nozzles.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] A clamping device for processing nozzles includes a clamping base, an adjusting rotary seat mounted on the clamping base via a plane adjusting mechanism, and a fixed turntable rotatably mounted on the upper end of the adjusting rotary seat. Clamping guide seats are fixedly mounted on both sides of the upper end of the fixed turntable, and a clamping screw is threadedly connected to the center of the clamping guide seat. A clamping side plate is rotatably mounted on the inward end of the clamping screw via a bearing. Multiple elastic clamping contact pieces are evenly distributed on the inward side of the clamping side plate, and an arc-shaped rubber head is provided on the inward side of the elastic clamping contact pieces.

[0008] Furthermore, guide rods are symmetrically fixedly connected to both ends of the outer side of the clamping side plate, and the outer ends of the guide rods are movably inserted through the clamping guide seat.

[0009] Furthermore, the elastic clamping contact piece is a fan-shaped spring steel sheet, and the inner ends of multiple elastic clamping contact pieces on both sides are inclined to the same side.

[0010] Furthermore, the planar adjustment mechanism includes two longitudinal guide rails, which are symmetrically installed on both sides of the upper end of the fixture base. A transverse adjustment platform is slidably connected to the two longitudinal guide rails. The transverse adjustment platform is perpendicular to the two longitudinal guide rails, and an adjustment rotating seat is disposed on the transverse adjustment platform. A longitudinal adjustment screw is rotatably installed on the upper end of the fixture base corresponding to the center position of the two longitudinal guide rails through a bearing seat, and the center of the longitudinal adjustment screw is threadedly connected to the center of the adjustment rotating seat.

[0011] Furthermore, the outer ends of both the clamping screw and the longitudinal adjusting screw are fixedly connected to operating handles.

[0012] Furthermore, a horizontal slider is slidably connected to the upper end of the horizontal adjustment platform, and the upper end of the horizontal slider is movably inserted into the bottom center of the adjustment turntable. A fastening groove is provided at the upper center of the fixed turntable, and a fastening bolt is inserted through the bottom center of the fastening groove. The bottom of the fastening bolt passes through the fixed turntable and the adjustment turntable and is threadedly connected to the horizontal slider.

[0013] Furthermore, the upper center of the adjusting turntable is provided with a docking boss, and the bottom of the fixed turntable is provided with a docking groove. The docking boss matches the docking groove, and a rubber friction pad is fixedly connected to the upper end of the docking boss.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. This utility model features a clamping base with an adjustable rotating seat on its top surface via a planar adjustment mechanism. A fixed turntable allows for adjustment of the nozzle's orientation after clamping. Clamping guides and side plates allow the side plates to move closer together or further apart via threaded engagement with the clamping screw. Multiple elastic clamping contact pieces on the inner side of the side plates secure the nozzle. These contact pieces, through elastic deformation, conform to the outer wall of the nozzle, further tightened by the curved rubber head, resulting in a more secure fit and improved clamping effect and stability. The planar adjustment mechanism and the adjustable rotating seat allow for adjustment of the nozzle's position and angle to meet processing requirements, including those for irregularly shaped nozzles.

[0016] 2. This utility model features two longitudinal guide rails and a transverse adjustment table. The transverse adjustment table can slide back and forth along the longitudinal guide rails. A longitudinal adjustment screw can drive the transverse adjustment table to move by engaging with the screw thread. The screw thread between the longitudinal adjustment screw and the transverse adjustment table self-locks and fixes the front and rear positions of the transverse adjustment table. This allows for adjustment of the front and rear positions of the adjustment turntable, thereby meeting the processing requirements of nozzles of different sizes and further improving the adaptability and flexibility of the fixture device.

[0017] 3. This utility model features a horizontal slider that drives an adjusting turntable to slide left and right along a horizontal adjustment platform, adjusting the left and right position of the nozzle. A fastening bolt, threaded with the horizontal slider, tightens the slider. Friction between the horizontal slider and the horizontal adjustment platform fixes the horizontal position of the adjusting turntable. The upper end of the horizontal adjustment platform and the fastening bolt apply pressure to the adjusting turntable and the fixed turntable, fixing the rotation angle of the fixed turntable. Loosening the fastening bolt adjusts the nozzle's orientation and left / right position, while tightening it fixes the relative position between the fixed turntable and the adjusting turntable, ensuring the nozzle's stability during processing. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is a utility model Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 This is a side sectional view of the present invention;

[0021] Figure 4 This is a utility model Figure 3 Enlarged view of point B in the middle.

[0022] Reference numerals: 1. Fixture base; 2. Adjusting rotary seat; 3. Fixed rotary table; 4. Clamping guide seat; 5. Clamping side plate; 6. Elastic clamping contact piece; 7. Clamping screw; 8. Guide square rod; 9. Arc-shaped rubber head; 10. Longitudinal guide rail; 11. Transverse adjustment table; 12. Fastening groove; 13. Operating handle; 14. Transverse slider; 15. Fastening bolt; 16. Longitudinal adjusting screw. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0024] Please see Figures 1-4This utility model provides a clamping device for processing nozzles, including a clamping base 1. The clamping base 1 is equipped with an adjusting turntable 2 through a plane adjusting mechanism. A fixed turntable 3 is rotatably mounted on the upper end of the adjusting turntable 2. Clamping guide seats 4 are fixedly mounted on both sides of the upper end of the fixed turntable 3. A clamping screw 7 is threadedly connected to the center of the clamping guide seat 4. A clamping side plate 5 is rotatably mounted on the inward end of the clamping screw 7 through a bearing. Multiple elastic clamping contact pieces 6 are evenly distributed on the inward side of the clamping side plate 5. An arc-shaped rubber head 9 is opened on the inward side of the elastic clamping contact piece 6.

[0025] In this embodiment, preferably, guide rods 8 are symmetrically fixedly connected to both ends of the outer side of the clamping side plate 5, and the outer ends of the guide rods 8 are movably inserted through the clamping guide seat 4; through the provided guide rods 8, the guide rods 8 can guide the clamping side plate 5, so that the clamping side plate 5 remains horizontal, avoids tilting during rotation, and ensures the stability of clamping.

[0026] In this embodiment, preferably, the elastic clamping contact piece 6 is a fan-shaped spring steel sheet, and the inner ends of multiple elastic clamping contact pieces 6 on both sides are inclined to the same side; the elastic clamping contact piece 6 presses against the outer wall of the nozzle by its own elasticity, and the inclined elastic clamping contact piece 6 can generate a certain elastic deformation when subjected to pressure, thereby better fitting the outer surface of the nozzle and improving the tightness and stability of clamping.

[0027] In this embodiment, preferably, the planar adjustment mechanism includes two longitudinal guide rails 10, which are symmetrically installed on both sides of the upper end of the clamp base 1. A transverse adjustment platform 11 is slidably connected to each of the two longitudinal guide rails 10. The transverse adjustment platform 11 is perpendicular to the two longitudinal guide rails 10, and an adjustment rotating seat 2 is mounted on the transverse adjustment platform 11. A longitudinal adjustment screw 16 is rotatably mounted on the upper end of the clamp base 1, corresponding to the center position of the two longitudinal guide rails 10, via a bearing. The center of the longitudinal adjustment screw 16 is threadedly connected to the center of the adjustment rotating seat 2. Two longitudinal guide rails 10 and a transverse adjustment table 11 are provided. The transverse adjustment table 11 can slide back and forth along the longitudinal guide rails 10. Through the longitudinal adjustment screw 16, the transverse adjustment table 11 can be driven to move by the thread engagement with the threaded connection between the longitudinal adjustment screw 16 and the threaded connection between the longitudinal adjustment screw 16 and the transverse adjustment table 11. The front and rear positions of the transverse adjustment table 11 can be fixed by the self-locking of the threaded connection between the longitudinal adjustment screw 16 and the transverse adjustment table 11. The front and rear positions of the adjustment rotary seat 2 can be adjusted to meet the processing requirements of nozzles of different sizes, and further improve the adaptability and flexibility of the fixture device.

[0028] In this embodiment, preferably, the outer ends of both the clamping screw 7 and the longitudinal adjusting screw 16 are fixedly connected to an operating handle 13; the operating handle 13 facilitates the user's rotation operation of the clamping screw 7 and the longitudinal adjusting screw 16, thereby improving work efficiency.

[0029] In this embodiment, preferably, a horizontal slider 14 is slidably connected to the upper end of the horizontal adjustment platform 11, and the upper end of the horizontal slider 14 is movably inserted into the bottom center of the adjusting rotary seat 2. A fastening groove 12 is provided at the upper center of the fixed turntable 3, and a fastening bolt 15 is inserted through the bottom center of the fastening groove 12. The bottom of the fastening bolt 15 passes through the fixed turntable 3 and the adjusting rotary seat 2 and is threadedly connected to the horizontal slider 14. Through the horizontal slider 14, the horizontal slider 14 can drive the adjusting rotary seat 2 to slide left and right along the horizontal adjustment platform 11, adjusting the left and right position of the nozzle. The fastening bolt 15 is threaded with the transverse slider 14, which can tighten the transverse slider 14. The horizontal position of the adjusting turntable 2 is fixed by the friction between the transverse slider 14 and the contact surface of the transverse adjusting table 11. The upper end of the transverse adjusting table 11 and the fastening bolt 15 apply pressure to the adjusting turntable 2 and the fixed turntable 3, fixing the rotation angle of the fixed turntable 3. Loosening the fastening bolt 15 can adjust the nozzle orientation and left and right position. Tightening the fastening bolt 15 can fix the relative position between the fixed turntable 3 and the adjusting turntable 2, thereby ensuring the stability of the nozzle during processing.

[0030] In this embodiment, preferably, the upper center of the adjusting rotary table 2 is provided with a mating boss, and the bottom of the fixed rotary table 3 is provided with a mating groove. The mating boss matches the mating groove, and a rubber friction pad is fixedly connected to the upper end of the mating boss. The mating boss and groove facilitate the mating of the adjusting rotary table 2 and the fixed rotary table 3. Angle scale lines are evenly distributed on the outer wall of the adjusting rotary table 2, and pointers are engraved on the side walls of the fixed rotary table 3 corresponding to the center lines of the clamping guide seats 4 on both sides, making it easy to visually determine the adjustment angle of the fixed rotary table 3. The rubber friction pad increases the friction between the adjusting rotary table 2 and the fixed rotary table 3, effectively preventing the fixed rotary table 3 from rotating during processing, further improving the stability and reliability of the fixture device. In addition, the rubber friction pad also has a certain buffering effect, reducing wear between the adjusting rotary table 2 and the fixed rotary table 3, and extending the service life of the fixture device.

[0031] The working principle and usage process of this utility model are as follows: During use, the clamping base 1 is configured, and the position of the adjusting turntable 2 on its top surface can be adjusted via a plane adjustment mechanism. The fixed turntable 3 allows adjustment of the orientation of the clamped nozzle. The clamping guide seat 4 and clamping side plates 5 allow the two side plates 5 to move closer and further apart via the threaded engagement between the clamping guide seat 4 and the clamping screw 7. Multiple elastic clamping contact pieces 6 on the inner side of the clamping side plates 5 clamp and fix the nozzle. When the elastic contact pieces 6 contact the outer wall of the nozzle, they can conform to the outer wall through elastic deformation, and are further secured by the arc-shaped rubber head 9, improving the clamping effect and stability of the nozzle. The plane adjustment mechanism and the adjusting turntable 2 allow the clamped nozzle to be adjusted in position and angle to meet processing requirements, including those for irregularly shaped nozzles.

[0032] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A clamping device for processing nozzles, characterized in that: The fixture includes a clamp base (1), which is equipped with an adjusting turntable (2) via a plane adjusting mechanism. A fixed turntable (3) is rotatably mounted on the upper end of the adjusting turntable (2). A clamping guide seat (4) is fixedly mounted on both sides of the upper end of the fixed turntable (3). A clamping screw (7) is threadedly connected to the center of the clamping guide seat (4). A clamping side plate (5) is rotatably mounted on the inward end of the clamping screw (7) via a bearing. Multiple elastic clamping contact pieces (6) are evenly distributed on the inward side of the clamping side plate (5). An arc-shaped rubber head (9) is opened on the inward side of the elastic clamping contact piece (6).

2. The clamping device for processing nozzles according to claim 1, characterized in that: The outer ends of the clamping side plate (5) are symmetrically fixedly connected with guide rods (8), and the outer ends of the guide rods (8) are movably inserted through the clamping guide seat (4).

3. A clamping device for processing nozzles according to claim 1, characterized in that: The elastic clamping contact piece (6) is a fan-shaped spring steel sheet, and the inner ends of multiple elastic clamping contact pieces (6) on both sides are inclined to the same side.

4. A clamping device for processing nozzles according to claim 1, characterized in that: The planar adjustment mechanism includes two longitudinal guide rails (10), which are symmetrically installed on both sides of the upper end of the fixture base (1). A transverse adjustment table (11) is slidably connected to the two longitudinal guide rails (10). The transverse adjustment table (11) is perpendicular to the two longitudinal guide rails (10). An adjustment rotating seat (2) is set on the transverse adjustment table (11). A longitudinal adjustment screw (16) is rotatably installed on the upper end of the fixture base (1) corresponding to the center position of the two longitudinal guide rails (10) through a bearing seat. The center of the longitudinal adjustment screw (16) is threadedly connected to the center of the adjustment rotating seat (2).

5. A clamping device for processing nozzles according to claim 4, characterized in that: The outer ends of the clamping screw (7) and the longitudinal adjusting screw (16) are both fixedly connected to the operating handle (13).

6. A clamping device for processing nozzles according to claim 4, characterized in that: The upper end of the horizontal adjustment platform (11) is slidably connected to a horizontal slider (14), and the upper end of the horizontal slider (14) is movably inserted into the bottom center of the adjustment turntable (2). The upper center of the fixed turntable (3) is provided with a fastening groove (12), and a fastening bolt (15) is inserted through the bottom center of the fastening groove (12). The bottom of the fastening bolt (15) passes through the fixed turntable (3) and the adjustment turntable (2) and is threadedly connected to the horizontal slider (14).

7. A clamping device for processing nozzles according to claim 6, characterized in that: The upper center of the adjusting turntable (2) is provided with a docking boss, and the bottom of the fixed turntable (3) is provided with a docking groove. The docking boss matches the docking groove, and a rubber friction pad is fixedly connected to the upper end of the docking boss.

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