Chamfering device for machining parts

Abstract

The utility model provides a part chamfer processing device for machining, belong to part processing technical field, including support frame, the top limit sliding of support frame is provided with two slide bars, is equipped with the drive mechanism of drive two slide bars to slide towards each other or opposite on support frame, the opposite side of two slide bars all sets up the clamping head, the outer surface of one end of each slide bar sets up the key groove of several every, each clamping head all is fixedly set up several spline, the one end of each slide rod sets up the clamping head all rotates and embeds and installs the turntable, is equipped with elastic piece between the turntable and clamping head. When needing to adjust the angle of gear, drive mechanism drives two slide rods to be far away from each other, make the spline from the key groove to separate, to switch for elastic clamping state. In this state, the operator can directly rotate the gear to adjust the angle, without completely loosening the clamping, effectively guarantee the original positioning of the gear, thereby quickly adjusting the angle of the gear, simplifying the operation steps, improving the processing efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of parts processing technology, specifically relating to a chamfering processing device for mechanical parts. Background Technology

[0002] In the field of machining, chamfering rotating parts such as gears is a key process to improve product assemblability and safety of use. Since the tooth grooves of a gear are distributed circumferentially, it is usually necessary to chamfer the upper part of the tooth grooves, rotate the workpiece by a certain angle, and then process the remaining part.

[0003] Currently, most common chamfering fixtures use direct bolt clamping or simple double-sided ejector pin structures. When adjusting the workpiece angle, these traditional fixtures often require completely releasing the clamp, resulting in loss of the workpiece's original positioning. Re-clamping necessitates realignment, wasting considerable time and severely impacting processing efficiency. Therefore, there is an urgent need for a chamfering device for parts.

[0004] A patent with publication number CN222830859U discloses a gear chamfering fixture for a grinding and chamfering machine. The fixture includes a gear, a first pressure plate, a second pressure plate, a through groove, a first handle, and a second handle. In use, the device is fixedly installed on the processing platform of the chamfering machine, with the gear placed vertically into the through groove between the first and second pressure plates. Rotating the first and second handles moves the first and second pressure plates closer to the gear, clamping and fixing it, thus chamfering the upper half of the gear's tooth grooves. After the upper half of the gear's tooth grooves is processed, rotating the first and second pressure plates releases the clamping and fixing of the gear, causing the lower half of the gear's tooth grooves to rotate upwards. The gear is then fixed again by the first and second pressure plates to chamfer the remaining teeth.

[0005] However, after the above solution completes the chamfering of the upper tooth groove of the gear, if the gear angle needs to be adjusted, the clamping of the pressure plate on the gear must be completely released. This operation destroys the original positioning of the gear, and it needs to be re-aligned and placed when it is fixed again, which significantly increases the processing time, increases the difficulty of operation, and makes it inconvenient to quickly adjust the gear angle, resulting in low overall processing efficiency and making it difficult to promote and apply in actual production environments. Utility Model Content

[0006] To address the problems existing in the background art, this utility model provides a chamfering processing device for machined parts.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A chamfering device for machined parts includes a support frame. Two sliding rods are slidably mounted on the top of the support frame. The support frame is equipped with a driving mechanism that drives the two sliding rods to slide towards or away from each other. Each sliding rod has a clamping head fitted on its facing side. Several keyways are formed on the outer surface of the end of each sliding rod where the clamping head is fitted. The keyways are evenly distributed in a circular array around the central axis of the sliding rod. Several splines are fixedly installed inside each clamping head. The splines are evenly distributed in a circular array around the central axis of the clamping head. The number of splines and keyways are equal and compatible. Each sliding rod has a rotating mounting turntable at the end where the clamping head is fitted. An elastic element is provided between the turntable and the clamping head.

[0009] Furthermore, the drive mechanism includes a motor, and two sliding plates are slidably arranged on the top of the support frame, which slide towards or away from each other; a bidirectional lead screw is rotatably arranged inside the support frame, and the two sliding plates are threadedly engaged with the two threaded sections of the bidirectional lead screw and fixedly connected to the two sliding rods; the motor is fixedly installed on the outer surface of the support frame, and the output shaft of the motor is coaxially fixedly connected to one end of the bidirectional lead screw.

[0010] Furthermore, the top of the support frame has sliding holes for the slide plate to slide.

[0011] Furthermore, a fixing frame is fixedly installed on the top of the support frame, and a sliding rod limits the sliding through the fixing frame.

[0012] Furthermore, the bottom of the support frame is integrally fixed with a base, and the base has several mounting holes.

[0013] Furthermore, the elastic element includes a spring, one end of which is fixedly connected to the turntable, and the other end of which is fixedly connected to the clamping head.

[0014] Furthermore, a friction block is fixedly provided on the clamping surface of the clamping head.

[0015] Furthermore, a friction strip is fixedly provided on the outer surface of the clamping head.

[0016] This application has the following beneficial effects:

[0017] During chamfering operations, this application utilizes a drive mechanism to bring two sliding rods closer together and compress the elastic element, pushing the spline into the keyway. This achieves rigid clamping and fixation of the gear, ensuring stability during the machining process. When the gear angle needs adjustment, the drive mechanism moves the two sliding rods apart, disengaging the spline from the keyway and switching to an elastic clamping state. In this state, the operator can directly rotate the gear to adjust the angle without completely releasing the clamp, effectively maintaining the original gear positioning. This allows for rapid gear angle adjustment, simplifies the operation, improves machining efficiency, and facilitates practical application. Attached Figure Description

[0018] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a utility model Figure 1 A magnified view of a portion of point A in the middle;

[0021] Figure 3 This is a schematic diagram of the drive mechanism structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the clamping head of this utility model;

[0023] Figure 5 This is a utility model Figure 4 A magnified view of a portion of point B in the middle.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Base; 2. Mounting hole; 3. Support frame; 4. Sliding hole; 5. Slide plate; 6. Friction strip; 7. Two-way lead screw; 8. Motor; 9. Fixing frame; 10. Slide rod; 11. Clamping head; 12. Spring; 13. Turntable; 14. Keyway; 15. Spline; 16. Friction block. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0027] like Figures 1-5 As shown, the technical solution adopted by this utility model is as follows: a chamfering processing device for machining parts, including a support frame 3, a base 1 is integrally fixed at the bottom of the support frame 3, and a plurality of mounting holes 2 are opened on the base 1.

[0028] The support frame 3 has two sliding rods 10 at its top limit, and the support frame 3 is equipped with a drive mechanism for driving the two sliding rods 10 to slide towards or away from each other.

[0029] Specifically, the drive mechanism includes a motor 8, and two sliding plates 5 are provided on the top limit of the support frame 3. The two sliding plates 5 slide towards or away from each other. A bidirectional lead screw 7 is rotatably provided inside the support frame 3. The two sliding plates 5 are threadedly engaged with the two threaded sections of the bidirectional lead screw 7 and are also fixedly connected to the two sliding rods 10.

[0030] The motor 8 is fixedly installed on the outer surface of the support frame 3, and the output shaft of the motor 8 is coaxially and fixedly connected to one end of the bidirectional lead screw 7.

[0031] More specifically, the top of the support frame 3 has a sliding hole 4 for the slide plate 5 to slide.

[0032] More specifically, a fixing frame 9 is fixedly installed on the top of the support frame 3, and the slide rod 10 is limited to slide through the fixing frame 9. The fixing frame 9 is used to improve the stability of the slide rod 10.

[0033] Each of the two sliding rods 10 has a clamping head 11 on its opposite side. Each sliding rod 10 has several keyways 14 on the outer surface of the end where the clamping head 11 is fitted. The keyways 14 are evenly distributed in a circular array around the central axis of the sliding rod 10. Each clamping head 11 has several splines 15 fixedly installed inside. The splines 15 are evenly distributed in a circular array around the central axis of the clamping head 11. The number of splines 15 and keyways 14 are equal and they are compatible.

[0034] In this case, one end of each slide rod 10 with a clamping head 11 is rotatably embedded into a mounting turntable 13, and an elastic element is provided between the turntable 13 and the clamping head 11.

[0035] Specifically, the elastic element includes a spring 12. A spring 12 is provided between the turntable 13 and the clamping head 11. One end of the spring 12 is fixedly connected to the turntable 13, and the other end is fixedly connected to the clamping head 11.

[0036] More specifically, friction blocks 16 are fixedly provided on the clamping surface of the clamping head 11 to protect the parts while improving the clamping effect.

[0037] More specifically, a friction strip 6 is fixedly provided on the outer surface of the clamping head 11 to facilitate the rotation of the clamping head 11.

[0038] Working principle: When in use, the device is fixedly installed at the position to be processed by bolts and mounting hole 2.

[0039] Place the gear that needs to be chamfered vertically between the two clamping heads 11, start the motor 8, and drive the bidirectional lead screw 7 to rotate through the output shaft of the motor 8, driving the two slide plates 5 to slide towards each other in the slide hole 4, thereby driving the two slide rods 10 to move closer to each other under the limit of the support frame 3 and the fixed frame 9.

[0040] The slide bar 10 pushes the turntable 13 and spring 12 at its end, causing the friction block 16 on the clamping head 11 to first contact the gear end face. As the slide bar 10 continues to move, the clamping head 11 is blocked and cannot move, causing the spring 12 to be compressed. The slide bar 10 is displaced relative to the clamping head 11, causing the spline 15 inside the clamping head 11 to gradually slide into the keyway 14 at the end of the slide bar 10.

[0041] When the spline 15 is fully inserted into the keyway 14, a rigid connection is formed between the slide bar 10 and the clamping head 11. At this time, the spring 12 is in a compressed state, and its elastic force firmly clamps the gear through the friction block 16 on the clamping head 11, so that chamfering can be performed.

[0042] When the upper part of the gear is finished and the angle needs to be adjusted, the output shaft of the motor 8 reverses, causing the two slide rods 10 to move away from each other. The spline 15 on the clamping head 11 exits from the keyway 14 of the slide rod 10, releasing the rigid connection. At this time, under the residual elastic force of the spring 12, the clamping head 11 still maintains an elastic clamping state on the gear through the friction block 16, preventing the gear from loosening or shifting.

[0043] Subsequently, the operator easily rotates the clamping head 11 and the clamped gear by holding the friction strip 6 on the outer surface of the clamping head 11, causing the unprocessed part to rotate upwards. During this process, the clamping head 11 drives the turntable 13 to rotate via the spring 12.

[0044] After the angle adjustment is completed, the output shaft of the motor 8 is controlled to rotate forward again, and the slide bar 10 moves towards each other again, so that the spline 15 is re-embedded in the keyway 14 and returns to the rigid clamping state, and the remaining part of the gear can be chamfered.

[0045] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A chamfering device for machined parts, characterized in that, Includes a support frame (3), with two sliding rods (10) slidably mounted on the top of the support frame (3), and a driving mechanism on the support frame (3) for driving the two sliding rods (10) to slide towards or away from each other; Each of the two sliding rods (10) is fitted with a clamping head (11) on its opposite side. Each sliding rod (10) has several keyways (14) on its outer surface at one end where the clamping head (11) is fitted. The keyways (14) are evenly distributed in a circular array around the central axis of the sliding rod (10). Each clamping head (11) is fixedly provided with several splines (15). The splines (15) are evenly distributed in a circular array around the central axis of the clamping head (11). The number of splines (15) and keyways (14) are equal and they are compatible. Each slide bar (10) has one end fitted with a clamping head (11) that is rotatably embedded into a mounting turntable (13), and an elastic element is provided between the turntable (13) and the clamping head (11).

2. The chamfering device for machining parts according to claim 1, characterized in that, The driving mechanism includes a motor (8), and two sliding plates (5) are provided on the top limit of the support frame (3). The two sliding plates (5) slide towards or away from each other. A bidirectional lead screw (7) is rotatably provided inside the support frame (3). The two sliding plates (5) are threadedly engaged with the two threaded sections of the bidirectional lead screw (7) and fixedly connected to the two sliding rods (10). The motor (8) is fixedly installed on the outer surface of the support frame (3). The output shaft of the motor (8) is coaxially fixedly connected to one end of the bidirectional lead screw (7).

3. The chamfering device for machined parts according to claim 2, characterized in that, The top of the support frame (3) has a sliding hole (4) for the sliding plate (5) to slide.

4. The chamfering device for machined parts according to claim 1, characterized in that, A fixing frame (9) is fixedly installed on the top of the support frame (3), and a sliding rod (10) slides through the fixing frame (9) to limit its movement.

5. The chamfering device for machined parts according to claim 1, characterized in that, The bottom of the support frame (3) is integrally fixed with a base (1), and several mounting holes (2) are opened on the base (1).

6. The chamfering device for machined parts according to claim 1, characterized in that, The elastic element includes a spring (12), one end of which is fixedly connected to the turntable (13), and the other end is fixedly connected to the clamping head (11).

7. The chamfering device for machined parts according to claim 1, characterized in that, The clamping surface of the clamping head (11) is fixedly provided with a friction block (16).

8. The chamfering device for machined parts according to claim 1, characterized in that, Friction strips (6) are fixedly provided on the outer surface of the clamping head (11).

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