Fixing device for flange plate machining

Abstract

The utility model discloses a fixing device for flange plate machining, and mainly relates to the field of flange plate machining. Comprising a chuck body, a plurality of movable clamping jaws sliding in the radial direction are arranged on the chuck body, clamping heads are arranged at the ends of the movable clamping jaws, adjusting plates sliding in the axial direction of the chuck body are arranged on the movable clamping jaws, and power rods driving the adjusting plates to slide are arranged at the ends, away from the clamping heads, of the movable clamping jaws. A guide assembly used in cooperation with the adjusting plate is arranged on the movable clamping jaw, and a reset spring is arranged between the adjusting plate and the movable clamping jaw. The chuck has the advantages that the technical problem that an existing chuck is difficult to fix and machine a thin flange plate can be solved, the depth of the clamping jaws is adaptively reduced according to the thickness of the flange plate, and therefore when the thin flange plate is fixed to the clamping jaws, the edge of the flange plate is exposed; and the machining accuracy and convenience of the edge of the flange plate are guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of flange processing, and specifically relates to a fixing device for machining of a flange. Background Technique

[0002] When a flange is machined, a chuck-type fixing device is generally used to fix the edge of the flange, so as to facilitate driving the flange to rotate and facilitate machining the end face or edge of the flange. However, the depth of the chuck jaws of the chuck is generally fixed. When the thickness of the flange is relatively thin, when the flange is clamped on the chuck, its edge position is completely blocked by the chuck jaws, and the edge of the flange cannot be machined anymore. The existing method is generally to place a cushion block at the position of the chuck jaws to reduce the depth of the chuck jaws, so that a part of the edge position is exposed after the end face of the flange contacts the cushion block, and the cushion block is removed during machining for machining. This method is relatively complicated in operation, and it is very likely that the already fixed flange will be shaken when the cushion block is disassembled, affecting the fixing effect of the flange, and further affecting the machining accuracy. Content of the Utility Model

[0003] The purpose of the utility model is to provide a fixing device for machining of a flange, which can solve the technical problem that the existing chuck is difficult to fix and machine a flange with a relatively thin thickness, adaptively reduce the depth of the chuck jaws according to the thickness of the flange, so that when the flange with a relatively thin thickness is fixed on the chuck jaws, the edge of the flange is exposed, ensuring the accuracy and convenience of machining the edge of the flange.

[0004] In order to achieve the above object, the utility model is realized through the following technical solutions:

[0005] A fixing device for machining of a flange includes a chuck body, a plurality of movable chuck jaws sliding radially are arranged on the chuck body, a chuck head is arranged at the end of the movable chuck jaw, an adjusting plate sliding axially along the chuck body is arranged on the movable chuck jaw, a power rod for driving the adjusting plate to slide is arranged at the end of the movable chuck jaw away from the chuck head, a guiding component for cooperating with the adjusting plate is arranged on the movable chuck jaw, and a return spring is arranged between the adjusting plate and the movable chuck jaw.

[0006] Further, a boss is arranged on the movable chuck jaw, the longitudinal section of the adjusting plate is U-shaped, and the adjusting plate is slidably sleeved outside the boss.

[0007] Further, a driving groove is arranged inside the boss, two sliders are symmetrically and slidably connected in the driving groove, the power rod is used to drive the two sliders to slide, a connecting rod is rotatably connected to the slider, and the other end of the connecting rod is rotatably connected to the adjusting plate.

[0008] Furthermore, the power rod is rotatably connected to the boss, and the power rod is provided with two threaded areas with opposite rotation directions at a position inside the driving groove, and the two threaded areas respectively penetrate the two sliders and are threadedly connected thereto.

[0009] Furthermore, a knob is provided at the end of the power rod outside the driving slot, a pointer is provided on the knob, and an angle scale line used in conjunction with the pointer is provided on the boss.

[0010] Furthermore, the guide assembly includes a plurality of guide grooves opened on the movable claws, a plurality of guide columns are provided on the adjustment plate, the guide columns are slidably connected in the guide grooves, and the return spring is located between the bottom end of the guide grooves and the bottom end of the guide columns.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The structure of the utility model is provided with an adjustment plate on the movable jaw which slides along the axial direction of the chuck body, so that when the adjustment plate slides, the distance between the adjustment plate and the clamping head at the end of the movable jaw changes, thereby effectively adjusting the depth of the movable jaw, so that when the flange is fixed on the movable jaw, its side contacts the adjustment plate, and the edge is clamped by the clamping head after the depth is reduced, thereby leaving enough processing space on the edge of the flange, realizing the accuracy of machining of the flange with a relatively thin thickness, and the utility model has a simple structure and convenient adjustment, which improves the convenience of machining flanges of different thicknesses;

[0013] 2. A power rod for driving the adjustment plate to slide is provided at the end of the movable claw away from the clamping head, and a guide assembly for cooperating with the adjustment plate is provided on the movable claw. A return spring is provided between the adjustment plate and the movable claw. When the power rod is used to drive the adjustment plate to slide, the setting of the guide assembly improves the firmness of the sliding structure of the adjustment plate, thereby making the fixed position of the flange more accurate and firm after contact with the adjustment plate. After the adjustment plate slides, the return spring is stretched, and the firmness of each position of the adjustment plate is further guaranteed under the reverse pulling force of the return spring in multiple directions, avoiding tilting or shaking of the adjustment plate after sliding, and further ensuring the firmness and accuracy of the flange fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Attached Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Attached Figure 2 It is a front view of the utility model.

[0016] Attached Figure 3 It is the attachment of the utility model Figure 2 Cross-sectional view along the AA direction.

[0017] Attached Figure 4It is an attachment of the present utility model Figure 3 A cross-sectional view taken along the B-B direction in

[0018] Reference numerals shown in the attached drawings:

[0019] 1. Chuck body; 2. Movable jaw; 3. Chuck head; 4. Adjusting plate; 5. Power rod; 6. Return spring; 7. Boss; 8. Driving groove; 9. Slide block; 10. Connecting rod; 11. Knob; 12. Pointer; 13. Angle scale line; 14. Guide groove; 15. Guide post. Detailed implementation manners

[0020] The present utility model will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model. In addition, it should be understood that after reading the content taught by the present utility model, those skilled in the art can make various changes or modifications to the present utility model, and these equivalent forms also fall within the scope defined by this application.

[0021] Refer to Figure 1 and Figure 2, the present utility model relates to a fixing device for machining a flange. The main structure includes a chuck body 1, which is of a cylindrical structure and is welded or bolted to the machining table. A plurality of movable jaws 2 that slide radially are provided on the chuck body 1. Specifically, a plurality of radially extending chutes are provided on the chuck body 1, and the movable jaws 2 are slidably connected in the chutes. A power assembly for driving the movable jaws 2 is arranged inside the chuck body 1, and an electric or manual driving method in the prior art can be adopted. Specifically, the driving method can be that a driving rod with a wrench hole drives a turntable to rotate under the connection of bevel gears. The side surface of the turntable is provided with end face threads, and a toothed plate meshing with the end face threads is provided on the movable jaw 2. When the turntable rotates, the movable jaw 2 is driven to slide along the chute under the action of screw connection. The above driving structure is a common driving method of the existing chuck type structure, so it will not be elaborated here and will not be shown in the drawings. A chuck head 3 is welded or bolted to the end of the movable jaw 2. The chuck head 3 has a certain depth. When the flange is fixed, the edge position at the connection between its side surface and the movable jaw 2 is clamped by the chuck head 3. An adjusting plate 4 that slides axially along the chuck body 1 is provided on the movable jaw 2. When the adjusting plate 4 slides axially along the chuck body 1, the distance between it and the chuck head 3 becomes smaller. Thus, when the side surface of the flange contacts the adjusting plate 4, the edge of the flange is clamped by the chuck head 3 with a reduced depth, so that enough machining space is left at the edge, and the edge of the flange with a relatively thin thickness is machined. A power rod 5 for driving the adjusting plate 4 to slide is provided at one end of the movable jaw 2 away from the chuck head 3. Using the power rod 5 to drive the adjusting plate 4 to slide makes the sliding adjustment of the adjusting plate 4 more convenient and fast. A guiding assembly for cooperating with the adjusting plate 4 is provided on the movable jaw 2. The setting of the guiding assembly makes the structure of the adjusting plate 4 more firm when it slides relative to the movable jaw 2, and it is not easy to tilt or shake. A return spring 6 is provided between the adjusting plate 4 and the movable jaw 2. After the adjusting plate 4 slides, the return springs 6 at various positions are stretched. Under the pulling force of the return spring 6, each position of the adjusting plate 4 is more balanced and stable, ensuring the firmness and accuracy of fixing the flange.

[0022] Preferably, referring to Figure 4 , a boss 7 is welded or bolted to the movable jaw 2. The longitudinal section of the adjusting plate 4 is U-shaped, and the adjusting plate 4 is slidably sleeved outside the boss 7. Such a structure makes the inner side of the U-shaped adjusting plate 4 always slide in contact with the edge of the boss 7 when sliding, providing effective support for the adjusting plate 4 and further improving the firmness of the structure of the adjusting plate 4 after sliding.

[0023] Preferably, referring to Figure 3, a drive groove 8 is provided inside the boss 7, and the drive groove 8 penetrates through the end of the boss 7 close to the adjusting plate 4. Two sliders 9 are symmetrically and slidably connected in the drive groove 8. The power rod 5 is used to drive the two sliders 9 to slide. A connecting rod 10 is rotatably connected to the slider 9 through a pin shaft or a hinge, and the other end of the connecting rod 10 is rotatably connected to the adjusting plate 4 through a pin shaft or a hinge. With such a structure, when the two sliders 9 slide relatively or away from each other under the drive of the power rod 5, the adjusting plate 4 slides up and down under the connection of the connecting rod 10. The connecting rod 10 is used to support the adjusted adjusting plate 4, making the sliding adjustment structure of the adjusting plate 4 more firm, and the sliding adjustment more convenient and accurate.

[0024] Preferably, the power rod 5 is rotatably connected to the boss 7 through a bearing. The power rod 5 penetrates through one side of the boss 7 and extends into the drive groove 8. Two thread regions with opposite helix directions are provided at the position of the power rod 5 inside the drive groove 8. The two thread regions respectively penetrate through the two sliders 9 and are threadedly connected thereto. With such a structure, when the power rod 5 rotates, the two sliders 9 slide relatively or away from each other simultaneously under the action of the two thread regions. The structure is simple, and the sliding adjustment of the sliders 9 and the adjusting plate 4 is more efficient and accurate.

[0025] Preferably, a knob 11 is fixedly welded or integrally formed at the end of the power rod 5 outside the drive groove 8. A pointer 12 is provided on the knob 11, and an angle scale line 13 for cooperating with the pointer 12 is provided on the boss 7. With such a structure, when adjusting the knob 11, it can be ensured that the adjusting plate 4 at each position slides the same height by observing the cooperation between the pointer 12 on the knob 11 and the angle scale line 13, so that the multiple adjusting plates 4 are located on the same plane after sliding, ensuring the accuracy of fixing the flange.

[0026] Preferably, the guiding assembly includes a plurality of guiding grooves 14 formed in the movable claw 2. The guiding grooves 14 extend inward from the end of the movable claw 2. A plurality of guiding columns 15 are fixedly welded or bolted to the adjusting plate 4. The guiding columns 15 are slidably connected in the guiding grooves 14. The return spring 6 is located between the bottom end of the guiding groove 14 and the bottom end of the guiding column 15. With such a structure, when the adjusting plate 4 slides, the guiding column 15 slides in the guiding groove 14, improving the firmness of the sliding structure of the adjusting plate 4. At the same time, when the guiding column 15 slides in the guiding groove 14, the return spring 6 between the two can be stretched, ensuring the accuracy of the reverse pulling force generated by the return spring 6 acting on each position of the adjusting plate 4.

[0027] Working principle: The structure of the utility model is provided with an adjustment plate 4 which slides axially along the chuck body 1 on the movable clamping claw 2, so that the distance between the adjustment plate 4 and the clamping head 3 at the end of the movable clamping claw 2 changes when the adjustment plate 4 slides, thereby effectively adjusting the depth of the movable clamping claw 2, so that when the flange is fixed on the movable clamping claw 2, its side surface contacts the adjustment plate 4, and the edge is clamped by the clamping head 3 after the depth is reduced, thereby leaving enough processing space on the edge of the flange, realizing the accuracy of processing the flange with thin thickness, and the structure is simple and the adjustment is convenient, which improves the convenience of machining flanges of different thicknesses; a drive adjustment is provided on the end of the movable clamping claw 2 away from the clamping head 3 The power rod 5 for the sliding of the plate 4, and the movable claw 2 are provided with a guide assembly for cooperating with the adjusting plate 4, and a return spring 6 is provided between the adjusting plate 4 and the movable claw 2. When such a structure uses the power rod 5 to drive the adjusting plate 4 to slide, the setting of the guide assembly improves the firmness of the sliding structure of the adjusting plate 4, thereby making the fixed position of the flange plate 4 more accurate and firm after contact with the adjusting plate 4. After the adjusting plate 4 slides, the return spring 6 is stretched, and the firmness of each position of the adjusting plate 4 is further guaranteed under the reverse pulling force of the return spring 6 in multiple directions, avoiding the tilting or shaking of the adjusting plate 4 after sliding, and further ensuring the firmness and accuracy of the flange fixation.

Claims

1. A fixing device for machining a flange, comprising a chuck body (1), wherein a plurality of movable jaws (2) sliding radially are arranged on the chuck body (1), and a chuck head (3) is arranged at the end of the movable jaw (2), characterized in that: An adjusting plate (4) that slides axially along the chuck body (1) is provided on the movable jaw (2). A power rod (5) for driving the sliding of the adjusting plate (4) is provided at one end of the movable jaw (2) away from the chuck head (3). A guiding assembly for cooperating with the adjusting plate (4) is provided on the movable jaw (2). A return spring (6) is provided between the adjusting plate (4) and the movable jaw (2).

2. The fixing device for flange machining according to claim 1, characterized in that: A boss (7) is provided on the movable jaw (2). The longitudinal section of the adjusting plate (4) is U-shaped, and the adjusting plate (4) is slidably sleeved outside the boss (7).

3. The fixing device for flange machining according to claim 2, characterized in that: A driving groove (8) is provided inside the boss (7). Sliders (9) are symmetrically and slidably connected in the driving groove (8). The power rod (5) is used to drive the sliding of the two sliders (9). A connecting rod (10) is rotatably connected to the slider (9), and the other end of the connecting rod (10) is rotatably connected to the adjusting plate (4).

4. The fixing device for flange machining according to claim 3, characterized in that: The power rod (5) is rotatably connected to the boss (7). Two thread regions with opposite helix directions are provided at the position of the power rod (5) inside the driving groove (8). The two thread regions respectively penetrate through the two sliders (9) and are threadedly connected thereto.

5. The fixing device for flange machining according to claim 4, characterized in that: A knob (11) is provided at the end of the power rod (5) outside the driving groove (8). A pointer (12) is provided on the knob (11), and an angle scale line (13) for cooperating with the pointer (12) is provided on the boss (7).

6. The fixing device for machining a flange according to claim 1, wherein: The guiding assembly includes a plurality of guiding grooves (14) opened on the movable jaw (2). A plurality of guiding columns (15) are provided on the adjusting plate (4). The guiding columns (15) are slidably connected in the guiding grooves (14). The return spring (6) is located between the bottom end of the guiding groove (14) and the bottom end of the guiding column (15).

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