Machining part positioning clamp

Abstract

The utility model discloses a machining part positioning clamp which comprises a base, a rotating column is rotationally installed above the base, a table body is arranged above the rotating column, one side of the lower wall of the table body is hinged to the upper end of the rotating column, and the other side of the lower wall of the table body is a free end and is connected with the side wall of the rotating column through an adjusting assembly. A rotary column is arranged on the upper wall of the base, a pair of guide rods is fixedly arranged on the upper wall of the base and located on the two sides of the rotary column, and a positioning ring arranged on the outer side of the rotary column in a sleeving mode is arranged between the pair of guide rods. Efficient positioning and flexible adjustment of parts are achieved, the rotating column can drive the table body to rotate so as to drive the parts to rotate, the positioning ring is meshed with outer teeth on the outer wall of the rotating column through inner teeth, the rotating column can be rapidly positioned, it is guaranteed that the rotating column cannot automatically rotate after rotating to the proper position, and the subsequent machining precision is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, specifically to a positioning fixture for machined parts. Background Technology

[0002] In machining, to ensure that the workpiece is accurately fixed in a designated position and remains free from displacement or deformation throughout the machining process, positioning fixtures are typically used. While traditional fixtures can achieve these functions to some extent, they often have the following limitations:

[0003] For example, Chinese patent CN222221872U discloses a mechanical seal milling groove positioning fixture, which includes a placement plate and support legs. The support legs are fixedly installed around the bottom of the placement plate. A clamping device is provided on the top of the placement plate. The clamping device includes a switching unit and a clamping unit. The switching unit is located on the top of the placement plate, and the clamping unit is located below the switching unit.

[0004] The aforementioned existing devices can achieve rapid positioning and clamping of parts, but due to different processing requirements, the required processing angles of the parts are also different. The aforementioned existing technology cannot quickly adjust the processing angles of the parts, resulting in low adaptability and inconvenience in use. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a positioning fixture for machined parts, which solves the problem of poor adjustability of existing fixtures.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a positioning fixture for machined parts, comprising a base, a rotating column rotatably mounted on the base, a platform above the rotating column, one side of the lower wall of the platform hinged to the upper end of the rotating column, and the other side being a free end connected to the side wall of the rotating column via an adjustment assembly, a pair of guide rods fixedly mounted on the upper wall of the base on both sides of the rotating column, a positioning ring fitted onto the outer side of the rotating column between the pair of guide rods, the positioning ring being able to slide up and down along the guide rods, the inner wall of the positioning ring having internal teeth along the circumferential direction, the outer wall of the rotating column having external teeth along the circumferential direction that mesh with the internal teeth, the lower wall of the positioning ring being connected to the base via a pair of springs, and a clamping assembly on the platform.

[0007] Preferably, the adjustment assembly includes a horizontal plate fixed to the side wall of the rotating column, a longitudinally arranged screw screw is screwed onto the horizontal plate, a handwheel is provided at the lower end of the screw screw, a connecting block is rotatably installed at the upper end, a slide rail is provided on the lower wall of the free end of the platform, a slider is provided on the slide rail, and the connecting block is hinged to the slider.

[0008] Preferably, the clamping assembly includes a mounting groove disposed in the platform body, a pair of pull rods are rotatably mounted in the mounting groove, a pair of movable blocks are screwed onto the pull rods and slidably connected to the mounting groove, and the upper wall of the movable blocks is provided with grippers.

[0009] Preferably, the gripping surface of the gripper is provided with anti-slip texture.

[0010] Preferably, a handle is installed at one end of the pull rod.

[0011] Preferably, the positioning ring has a guide hole through which the guide rod passes.

[0012] Beneficial effects

[0013] This utility model provides a positioning fixture for machined parts, which has the following advantages:

[0014] Through the design of components such as base, rotating column, platform, adjustment assembly, guide rod, positioning ring, spring, and clamping assembly, efficient positioning and flexible adjustment of parts are achieved. The rotating column can drive the platform to rotate, thereby driving the parts to rotate. The positioning ring can quickly position the rotating column by meshing its internal teeth with the external teeth on the outer wall of the rotating column, ensuring that the rotating column will not rotate automatically after rotating to the appropriate position, thus guaranteeing the accuracy of subsequent processing.

[0015] The adjustment assembly includes components such as a horizontal plate, screw, handwheel, connecting block, slide rail, and slider. Users can adjust the tilt angle of the table by rotating the handwheel to meet different processing needs. The pull rod in the clamping assembly is equipped with a handle at one end, which makes it convenient for users to manually adjust the position of the clamps, achieve precise clamping, simplify the operation process, and improve work efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a top view of the rotating column of this utility model.

[0018] Figure 3 This is a partially enlarged structural schematic diagram of the present invention.

[0019] In the diagram: 1. Base; 2. Rotating column; 3. Platform; 4. Guide rod; 5. Positioning ring; 6. Internal gear; 7. External gear; 8. Spring; 9. Horizontal plate; 10. Screw; 11. Connecting block; 12. Slide rail; 13. Slider; 14. Mounting groove; 15. Pull rod; 16. Moving block; 17. Clamping jaw. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-2 This utility model provides a technical solution: a positioning fixture for machined parts, including a base 1, a rotating column 2 rotatably mounted on the base 1, a platform 3 above the rotating column 2, one side of the lower wall of the platform 3 being hinged to the upper end of the rotating column 2, and the other side being a free end connected to the side wall of the rotating column 2 through an adjustment assembly, a pair of guide rods 4 being fixedly provided on the upper wall of the base 1 and on both sides of the rotating column 2, a positioning ring 5 being provided between the pair of guide rods 4 and fitted onto the outer side of the rotating column 2, the positioning ring 5 being able to slide up and down along the guide rods 4, the inner wall of the positioning ring 5 having internal teeth 6 along the circumferential direction, the outer wall of the rotating column 2 having external teeth 7 along the circumferential direction that mesh with the internal teeth 6, the lower wall of the positioning ring 5 being connected to the base 1 through a pair of springs 8, and a clamping assembly being provided on the platform 3.

[0022] By adopting the above technical solution, the platform 3 can be angled around the rotating column 2. The inner teeth 6 of the positioning ring 5 cooperate with the outer teeth 7 of the outer wall of the rotating column 2 to prevent the platform 3 from shifting after the angle adjustment is completed, thereby locking the rotating column 2. The positioning ring 5 can slide down along the guide rod 4, thereby separating the inner teeth 6 from the outer teeth 7. At this time, the rotating column 2 can be unlocked and rotated, realizing the adjustable angle of the platform 3 to adapt to different processing requirements.

[0023] In this embodiment, the adjustment assembly includes a horizontal plate 9 fixedly disposed on the side wall of the rotating column 2. A longitudinally arranged screw 10 is screwed onto the horizontal plate 9. A handwheel is provided at the lower end of the screw 10, and a connecting block 11 is rotatably installed at the upper end. A slide rail 12 is provided on the lower wall of the free end of the platform 3. A slider 13 is provided on the slide rail 12. The connecting block 11 is hinged to the slider 13.

[0024] By adopting the above technical solution, the screw 10 is moved up and down by rotating the handwheel, and then the slider 13 is pushed along the slide rail 12 by the connecting block 11, so as to adjust the height of the free end of the platform 3, thereby changing the angle of the platform 3 and thus changing the processing angle of the part.

[0025] In this embodiment, the clamping assembly includes a mounting groove 14 located within the platform 3. A pull rod 15 is rotatably mounted within the mounting groove 14. A pair of movable blocks 16, which are slidably connected to the mounting groove 14, are screwed onto the pull rod 15. The upper wall of the movable blocks 16 is provided with grippers 17.

[0026] By adopting the above technical solution, by rotating the pull rod 15, a pair of moving blocks 16 can be moved closer or further apart, thereby realizing the opening and closing of the gripper 17 to clamp or release the parts.

[0027] In this embodiment, the gripping surface of the gripper 17 is provided with anti-slip texture.

[0028] By adopting the above technical solution, the reliability of clamping is improved, and the parts are prevented from sliding or falling off during processing.

[0029] In this embodiment, a handle is further provided at one end of the pull rod 15.

[0030] By adopting the above technical solution, the convenience and efficiency of operation are improved, and the opening and closing process of the gripper 17 is simplified.

[0031] In this embodiment, the positioning ring 5 is further configured to have a guide hole through which the guide rod 4 passes.

[0032] By adopting the above technical solution, it is ensured that the positioning ring 5 and the guide rod 4 can cooperate with each other, so that the positioning ring 5 can slide stably up and down on the guide rod 4.

[0033] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0034] Example: During operation, the part to be processed is placed on the table 3. The handle on the pull rod 15 is rotated, causing a pair of moving blocks 16 to move relative to each other along the mounting groove 14, which in turn causes the gripper 17 to close and clamp the part. When it is necessary to adjust the processing direction of the part, the positioning ring 5 can be pressed down, and the spring 8 is compressed. At this time, the inner tooth 6 and the outer tooth 7 are separated, and the rotating column 2 is unlocked. At this time, the rotating column 2 can be rotated to drive the table 3 above and the workpiece to rotate, thereby adjusting the processing direction. After rotating to a suitable angle, the positioning ring 5 is released, and the spring 8 drives the positioning ring 5 to rise and reset, so that the inner tooth 6 and the outer tooth 7 mesh. At this time, the rotating column 2 is locked and will not rotate automatically, ensuring processing accuracy. When it is necessary to adjust the processing angle of the part, the screw 10 is rotated, causing the connecting block 11 to move up and down, thereby causing the slider 13 to slide on the slide rail 12. At this time, the free end of the table 3 rises accordingly, thereby adjusting the processing angle of the part. After completing the above steps, the processing operation of the part is performed.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning fixture for machined parts, comprising a base (1), characterized in that, A rotating column (2) is rotatably mounted on the base (1). A platform (3) is provided on the top of the rotating column (2). One side of the lower wall of the platform (3) is hinged to the upper end of the rotating column (2), and the other side is a free end connected to the side wall of the rotating column (2) through an adjustment component. A pair of guide rods (4) are fixedly provided on the upper wall of the base (1) and on both sides of the rotating column (2). A positioning ring (5) is provided between the pair of guide rods (4) and fitted on the outside of the rotating column (2). The positioning ring (5) can slide up and down along the guide rods (4). The inner wall of the positioning ring (5) is provided with internal teeth (6) along the circumferential direction. The outer wall of the rotating column (2) is provided with external teeth (7) along the circumferential direction that mesh with the internal teeth (6). The lower wall of the positioning ring (5) is connected to the base (1) through a pair of springs (8). A clamping component is provided on the platform (3).

2. The machining part positioning fixture according to claim 1, characterized in that, The adjustment assembly includes a horizontal plate (9) fixedly mounted on the side wall of the rotating column (2), a longitudinally arranged screw (10) screwed onto the horizontal plate (9), a handwheel at the lower end of the screw (10) and a connecting block (11) rotatably mounted on the upper end, a slide rail (12) on the lower wall of the free end of the platform (3), a slider (13) on the slide rail (12), and the connecting block (11) hinged to the slider (13).

3. A positioning fixture for machined parts according to claim 2, characterized in that, The clamping assembly includes a mounting groove (14) provided in the platform (3), a pull rod (15) is rotatably mounted in the mounting groove (14), a pair of moving blocks (16) slidably connected to the mounting groove (14) are screwed onto the pull rod (15), and the upper wall of the moving block (16) is provided with a gripper (17).

4. A positioning fixture for machined parts according to claim 3, characterized in that, The gripping surface of the gripper (17) is provided with anti-slip texture.

5. A positioning fixture for machined parts according to claim 3, characterized in that, A handle is installed at one end of the pull rod (15).

6. A positioning fixture for machined parts according to claim 1, characterized in that, The positioning ring (5) has a guide hole through which the guide rod (4) passes.

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