Mechanical part machining clamp
By designing the combined structure of the lead screw and movable plate of mechanical parts processing fixtures, the troublesome problem of V-shaped iron support adjustment in shaft parts processing is solved, and convenient clamping operation is achieved.
Patent Information
- Application Number
- CN202421871466.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-05
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-08-05
AI Technical Summary
During the processing of shaft parts, the prior art requires frequent replacement of V-shaped iron of different specifications for support and adjustment, which leads to troublesome operation and affects the clamping and alignment time.
A mechanical parts processing fixture is designed to adjust the angle of the movable plate through a combined structure of a screw, a C-shaped frame and a movable plate, avoiding the dependence on V-shaped iron of different specifications.
The clamping process of shaft parts is simplified, the operating efficiency and clamping convenience are improved, and the steps of replacing support are reduced.
Smart Images
Figure CN223130040U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of machining, in particular to a fixture for machining mechanical parts. Background Art
[0002] Machining of mechanical parts refers to the process of changing the external dimensions or performance of mechanical parts through mechanical equipment. During the machining of mechanical parts, in order to fix the mechanical parts, fixtures are usually used to clamp the mechanical parts. When machining shaft parts, three-jaw chucks, four-jaw chucks, one-clamp-one-center or two center points are usually used for clamping the parts during turning and grinding. However, for the machining of positions such as end face holes, radial holes, and key grooves of shaft parts, V-blocks are required for support. Since the diameters and positions of the supports for shaft parts are different, the V-blocks need to be adjusted to ensure that the rotating shaft is concentric after being supported by two V-blocks. Since there are large differences in the diameters of each part of the rotating shaft, different specifications of V-blocks need to be replaced for paired support, and then fine adjustment is carried out by padding paper sheets, feeler gauges, and copper sheets on the V-support surfaces. The operation process is very troublesome, seriously affecting the auxiliary time such as clamping and alignment of shaft parts. Summary of the Utility Model
[0003] In view of the above deficiencies in the prior art, the utility model provides a fixture for machining mechanical parts, aiming to solve the problems raised in the above background art.
[0004] In order to achieve the above utility model purpose, the technical scheme adopted by the utility model is as follows:
[0005] A fixture for machining mechanical parts includes a box body. A strip-shaped through hole is opened at the top of the box body. A fixed block is fixedly arranged in the box body. A lead screw is rotatably connected to the fixed block. Two symmetrically arranged C-shaped frames are rotatably connected to both ends of the lead screw. A screw rod is rotatably connected to the C-shaped frame. A connecting pin is threadedly connected to the screw rod. A first movable plate and a second movable plate symmetrically arranged with the first movable plate are rotatably connected to the connecting pin. A chute is opened on the C-shaped frame. Long holes are opened on both the first movable plate and the second movable plate. A fixed shaft is arranged in the chute.
[0006] Further, the thread directions of both ends of the lead screw are opposite.
[0007] Further, one end of the lead screw extends to the outside of the box body, and a hand wheel is arranged at the end of the lead screw extending to the outside of the box body.
[0008] Further, a knob is arranged at the end of the screw rod away from the connecting pin.
[0009] Further, the long holes are slidably arranged with the fixed shaft.
[0010] The beneficial effects of the utility model are as follows:
[0011] A machining fixture for mechanical parts of the present utility model can adjust the angle between a first movable plate and a second movable plate through a provided screw rod. When clamping the mechanical parts, it is not necessary to replace V-shaped irons of different specifications for paired support, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 is a front view structural schematic diagram of the present utility model;
[0013] Figure 2 is a top view structural schematic diagram of the present utility model;
[0014] Figure 3 is the Figure 2 enlarged structural schematic diagram of part A in the present utility model.
[0015] Corresponding Table of Reference Numerals in the Drawings:
[0016] 1. Box body; 2. Strip-shaped through hole; 3. Fixed block; 4. Lead screw; 5. C-shaped frame; 6. Screw rod; 7. Connecting pin; 8. First movable plate; 9. Second movable plate; 10. Slide groove; 11. Long hole; 12. Fixed shaft; 13. Hand wheel; 14. Knob. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0017] The following further describes the specific embodiments of the present utility model with reference to the drawings. The same components are denoted by the same reference numerals.
[0018] It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.
[0019] In order to make the content of the present utility model more clearly understood, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model.
[0020] As Figures 1 to 3As shown in the figure, a machining fixture for mechanical parts includes a box body 1. A strip-shaped through hole 2 is provided at the top of the box body 1. A fixed block 3 is fixedly arranged inside the box body 1. A lead screw 4 is rotatably connected to the fixed block 3. The thread directions at both ends of the lead screw 4 are opposite. One end of the lead screw 4 extends to the outside of the box body 1. A hand wheel 13 is provided at the end of the lead screw 4 extending to the outside of the box body 1. Two symmetrically arranged C-shaped frames 5 are rotatably connected to both ends of the lead screw 4. A screw rod 6 is rotatably connected to the C-shaped frame 5. A connecting pin 7 is threadedly connected to the screw rod 6. A knob 14 is provided at the end of the screw rod 6 away from the connecting pin 7. A first movable plate 8 and a second movable plate 9 symmetrically arranged with the first movable plate 8 are rotatably connected to the connecting pin 7. A chute 10 is provided on the C-shaped frame 5. Long holes 11 are provided on both the first movable plate 8 and the second movable plate 9. A fixed shaft 12 is arranged in the chute 10. The long holes 11 are slidably arranged with the fixed shaft 12.
[0021] When the fixture is in use, place the mechanical part between the two first movable plates 8 and the second movable plate 9. Turn the hand wheel 13. The hand wheel 13 drives the lead screw 4 to rotate. The lead screw 4 drives the two C-shaped frames 5 to approach each other. According to the size of the mechanical part, turn the knob 14. The knob 14 drives the screw rod 6 to rotate. The screw rod 6 drives the connecting pin 7 to move. The connecting pin 7 drives the first movable plate 8 and the second movable plate 9 to move, changing the angles of the first movable plate 8 and the second movable plate 9. When clamping the mechanical part, it is not necessary to replace V-shaped irons of different specifications for paired support.
[0022] The above are only the preferred embodiments of the utility model patent and are not intended to limit the utility model patent. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the utility model patent shall be included in the protection scope of the utility model patent.
Claims
1. A machining fixture for mechanical parts, characterized in that, It includes a box body (1), a strip-shaped through hole (2) is formed at the top of the box body (1), a fixed block (3) is fixedly arranged inside the box body (1), a lead screw (4) is rotatably connected to the fixed block (3), two symmetrically arranged C-shaped frames (5) are rotatably connected to both ends of the lead screw (4), a screw rod (6) is rotatably connected to the C-shaped frame (5), a connecting pin (7) is threadedly connected to the screw rod (6), a first movable plate (8) and a second movable plate (9) symmetrically arranged with the first movable plate (8) are rotatably connected to the connecting pin (7), a sliding groove (10) is formed in the C-shaped frame (5), long holes (11) are formed in both the first movable plate (8) and the second movable plate (9), and a fixed shaft (12) is arranged in the sliding groove (10).
2. The machining fixture for mechanical parts according to claim 1, characterized in that: The thread directions at both ends of the lead screw (4) are opposite.
3. A machining fixture for mechanical parts according to claim 2, characterized in that: One end of the lead screw (4) extends to the outside of the box body (1), and a hand wheel (13) is arranged at the end of the lead screw (4) extending to the outside of the box body (1).
4. A machining fixture for mechanical parts according to claim 1, characterized in that: A knob (14) is arranged at the end of the screw rod (6) away from the connecting pin (7).
5. A machining fixture for mechanical parts according to claim 1, characterized in that: The long hole (11) is slidably arranged with the fixed shaft (12).