Mechanical angular positioning mechanism for secondary machining of workpiece

Abstract

The utility model relates to the technical field of mechanical positioning, in particular to a mechanical angular positioning mechanism for secondary machining of a workpiece, which comprises a main body and a workpiece body arranged on the outer side of the main body. The clamping assembly comprises a turbine rotating body rotationally connected to the inner side of the main body and a clamping body arranged on the inner side of the turbine rotating body; the driving assembly comprises an external groove formed in the end face of the turbine rotating body and a worm in threaded connection with the outer wall of the external groove, the clamping assembly further comprises an external connection column integrally formed on the lower end face of the clamping body, and an internal thread groove in threaded connection with the external connection column is formed in the turbine rotating body; the direction of the turbine rotating body can be adjusted through the driving assembly according to the placement condition of a workpiece, the workpiece can be leveled and corrected in cooperation with the clamping assembly, meanwhile, the stability of the position of the clamping assembly is guaranteed through the locking assembly, and therefore a stable working environment is provided for follow-up finishing, and the device is suitable for batch finishing machining.

Description

Technical Field

[0001] This utility model relates to the field of mechanical positioning technology, and in particular to a mechanical angular positioning mechanism for secondary processing of workpieces. Background Technology

[0002] In the machining and manufacturing process, after initial machining, workpieces often develop defects such as out-of-tolerance dimensions or insufficient surface roughness due to factors such as tool wear, equipment vibration, or fluctuations in process parameters. These defects must be corrected and refined through secondary machining. In this refinement stage, the accuracy of angular positioning becomes crucial in determining the final machining quality. If the angular position of the workpiece shifts during secondary clamping, the machining datum will be distorted. This not only fails to effectively correct the original defects but also introduces new form and position errors, severely impacting the workpiece's assembly accuracy and performance. Therefore, achieving stable and reliable angular positioning is a fundamental prerequisite for ensuring the success rate of secondary machining and improving product consistency and yield.

[0003] Existing technologies mainly involve manually rotating the workpiece to a suitable position. This process is time-consuming and has poor precision control. For example, it is suitable for secondary machining that requires repeated positioning (such as precision milling and precision repair). However, the manual adjustment method is not suitable for this situation, which limits its application when machining workpieces that require repeated positioning. Utility Model Content

[0004] In view of the problems existing in the above or prior art, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a mechanical angular positioning mechanism for secondary processing of workpieces.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a mechanical angular positioning mechanism for secondary processing of workpieces, comprising a main body and a workpiece body disposed on the outside of the main body; a clamping assembly comprising a turbine rotor rotatably connected to the inside of the main body and a clamping body disposed on the inside of the turbine rotor; and a driving assembly comprising an external groove formed on the end face of the turbine rotor and a worm gear threaded to the outer wall of the external groove.

[0007] As a preferred embodiment of the mechanical angular positioning mechanism for secondary processing of workpieces according to this utility model, the clamping assembly further includes an external post integrally formed on the lower end face of the clamping body, and the turbine rotating body has an internal thread groove that is threadedly connected to the external post.

[0008] As a preferred embodiment of the mechanical angular positioning mechanism for secondary processing of workpieces according to this utility model, wherein: a locking ring is provided on the end face of the clamping body, and a clamping part is provided on the upper end face of the clamping body, and the clamping part is designed to be inclined.

[0009] As a preferred embodiment of the mechanical angular positioning mechanism for secondary processing of workpieces according to this utility model, the driving assembly further includes a first threaded groove formed on the end face of the worm, and the worm is threadedly connected to the turbine rotating body through the first threaded groove.

[0010] As a preferred embodiment of the mechanical angular positioning mechanism for secondary processing of workpieces according to this utility model, wherein: an external plate is fixedly connected to the end face of the worm gear, and a hand crank is fixedly connected to the end face of the external plate.

[0011] As a preferred embodiment of the mechanical angular positioning mechanism for secondary processing of workpieces according to this utility model, the outer wall of the main body is further provided with a locking assembly, which includes a positioning groove formed on the outer wall of the turbine rotating body and a pressure block adapted to the cross section of the positioning groove.

[0012] As a preferred embodiment of the mechanical angular positioning mechanism for secondary processing of workpieces according to this utility model, the outer wall of the main body is provided with a clamping screw, the end face of the clamping screw is provided with a second threaded groove, and the pressure block is rotatably connected to the end face of the clamping screw.

[0013] As a preferred embodiment of the mechanical angular positioning mechanism for secondary processing of workpieces according to this utility model, the clamping screw is threadedly connected to the outer wall of the main body through the second threaded groove, and a control rod is fixedly connected to the end face of the clamping screw.

[0014] The beneficial effects of this utility model of a mechanical angular positioning mechanism for secondary workpiece processing are as follows: This utility model can adjust the direction of the turbine rotating body according to the placement of the workpiece through the drive component, and can level and correct the workpiece in conjunction with the clamping component. At the same time, the locking component ensures the stability of the clamping component position, thereby providing a stable working environment for subsequent fine finishing and is suitable for batch finishing processing. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1This is a schematic diagram of the overall structure of a mechanical angular positioning mechanism used for secondary processing of workpieces.

[0017] Figure 2 This is a schematic diagram of the clamping assembly structure of a mechanical angular positioning mechanism for secondary machining of workpieces.

[0018] Figure 3 This is a schematic diagram of the drive assembly structure of a mechanical angular positioning mechanism for secondary processing of workpieces.

[0019] Figure 4 This is a schematic diagram of the locking assembly structure of a mechanical angular positioning mechanism for secondary processing of workpieces.

[0020] Figure 5 This is a schematic diagram showing the disassembled structure of a mechanical angular positioning mechanism used for secondary processing of workpieces.

[0021] The components are as follows: 1. Main body; 2. Workpiece body; 3. Clamping assembly; 31. Turbine rotating body; 32. Internal threaded groove; 33. External connecting post; 34. Clamping body; 35. Locking ring; 36. Clamping part; 4. Drive assembly; 41. External groove; 42. Worm gear; 43. External connecting plate; 44. Hand crank; 45. First threaded groove; 5. Locking assembly; 51. Pressing screw; 52. Control rod; 53. Second threaded groove; 54. Pressure block; 55. Positioning groove. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0025] Reference Figures 1 to 5A mechanical angular positioning mechanism for secondary processing of workpieces includes a main body 1 and a workpiece body 2 disposed on the outside of the main body 1. The main body 1 is in a fixed state and is used to support the clamping assembly 3, the driving assembly 4 and the locking assembly 5. The workpiece body 2 is installed on the top of the main body 1 and the clamping assembly 3 clamps the workpiece body 2. The end face of the workpiece body 2 is provided with kidney holes on both sides, and the alignment is achieved by adjusting the position of the kidney holes.

[0026] And, the clamping assembly 3 includes a turbine rotor 31 rotatably connected to the inside of the main body 1 and a clamping body 34 disposed inside the turbine rotor 31; wherein, the turbine rotor 31 is disposed inside the main body 1 and provides driving power for the rotation of the clamping body 34.

[0027] Furthermore, the drive assembly 4 includes an external groove 41 formed on the end face of the turbine rotor 31 and a worm gear 42 threadedly connected to the outer wall of the external groove 41. The external groove 41 is formed on the end face of the turbine rotor 31 and is annular. The rotation of the turbine rotor 31 is controlled by the rotation of the worm gear 42.

[0028] Specifically, the clamping assembly 3 further includes an external post 33 integrally formed on the lower end face of the clamping body 34, and an internal threaded groove 32 that is threadedly connected to the external post 33 is provided inside the turbine rotating body 31. The external post 33 and the internal threaded groove 32 are threadedly connected; the external post 33 is a protruding design, while the internal threaded groove 32 is located on the concave side of the turbine rotating body 31. The connection between the two transmits the rotational power of the turbine rotating body 31 to the clamping body 34.

[0029] Furthermore, a locking ring 35 is provided on the end face of the clamping body 34, and a clamping part 36 is provided on the upper end face of the clamping body 34. The clamping part 36 is designed to be inclined. The locking ring 35 is annular and installed at the edge of the end face of the clamping body 34 to ensure the stability of the clamping part 36 in clamping the workpiece body 2. The clamping part 36 is inclined inward, which can further ensure the stability of the clamping and positioning of the workpiece body 2.

[0030] Reference Figure 1 , Figure 2 and Figure 3 The drive assembly 4 further includes a first threaded groove 45 formed on the end face of the worm 42, through which the worm 42 is threadedly connected to the turbine rotor 31. A certain space is provided inside the main body 1 for the worm 42 to rotate, and the turbine rotor 31 can be driven to rotate through the first threaded groove 45.

[0031] Specifically, an external plate 43 is fixedly connected to the end face of the worm gear 42, and a hand crank 44 is fixedly connected to the end face of the external plate 43. The design of the external plate 43 and the hand crank 44 facilitates the operator's control of the rotation of the worm gear 42, thereby improving the efficiency of driving the clamping assembly 3 to rotate.

[0032] Reference Figure 1 , Figure 4 and Figure 5 The outer wall of the main body 1 is also provided with a locking assembly 5. The locking assembly 5 includes a positioning groove 55 formed on the outer wall of the turbine rotating body 31 and a pressure block 54 adapted to the cross-section of the positioning groove 55. The locking assembly 5 is designed to be higher than the drive assembly 4 to avoid interference between the two. The pressure block 54 is a partially annular structure, and the positioning groove 55 is an annular groove. The pressure block 54 can engage with the annular groove to achieve the stability of the position of the turbine rotating body 31.

[0033] Furthermore, a clamping screw 51 is provided on the outer wall of the main body 1, and a second threaded groove 53 is formed on the end face of the clamping screw 51. The pressure block 54 is rotatably connected to the end face of the clamping screw 51. The clamping screw 51 is connected to the main body 1 through the second threaded groove 53, so that it can move back and forth along the inner wall of the main body 1, thereby driving the pressure block 54 to move synchronously.

[0034] Specifically, the clamping screw 51 is threaded to the outer wall of the main body 1 through the second threaded groove 53, and a control rod 52 is fixedly connected to the end face of the clamping screw 51. The control rod 52 is designed in two sets and fixedly connected to the end face of the clamping screw 51, allowing personnel to easily rotate the clamping screw 51.

[0035] Working principle: First, the main body 1 is in a fixed state. The workpiece body 2 that needs to be processed is placed on the upper side inside the clamping body 34. The hand crank 44 is manually controlled to rotate, thereby driving the outer connecting plate 43 and the worm gear 42 to rotate synchronously. Since the first thread groove 45 on the end face of the worm gear 42 is threadedly connected to the outer groove 41, the rotation of the worm gear 42 can control the rotation of the turbine rotating body 31. When the turbine rotating body 31 rotates, the connection between its internal thread groove 32 and the outer connecting post 33 drives the rotation of the turbine rotating body 31 to drive the clamping body 34 to rotate synchronously. Since the workpiece body 2 is connected to the clamping body 34 and the locking ring 35, the rotation of the clamping body 34 can control the rotation of the workpiece body 2, thereby leveling the kidney holes on both sides and achieving the leveling and alignment effect.

[0036] Once the position of the workpiece body 2 is determined, the operator manually drives the control lever 52 to rotate. The rotation of the control lever 52 drives the clamping screw 51 to move synchronously inside the body 1. Since the end of the clamping screw 51 is rotatably connected to the pressure block 54, the movement of the clamping screw 51 can cause the pressure block 54 to move synchronously, thereby causing the pressure block 54 to be inserted into the positioning groove 55. The pressure of the pressure block 54 and the clamping screw 51 can ensure the determination of the position of the turbine rotating body 31, thereby ensuring the stability of the clamping body 34 in clamping the workpiece body 2, which is convenient for subsequent fine finishing of the workpiece end face.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A mechanical angular positioning mechanism for secondary processing of workpieces, characterized in that: include, The main body (1) and the workpiece body (2) disposed outside the main body (1); and, The clamping assembly (3) includes a turbine rotor (31) rotatably connected to the inner side of the main body (1), and a clamping body (34) disposed inside the turbine rotor (31); and, The drive assembly (4) includes an external slot (41) formed on the end face of the turbine rotor (31) and a worm (42) threaded to the outer wall of the external slot (41).

2. The mechanical angular positioning mechanism for secondary processing of workpieces as described in claim 1, characterized in that: The clamping assembly (3) also includes an external post (33) integrally formed on the lower end face of the clamping body (34), and the turbine rotating body (31) has an internal thread groove (32) that is threadedly connected to the external post (33).

3. The mechanical angular positioning mechanism for secondary processing of workpieces as described in claim 2, characterized in that: The clamping body (34) has a locking ring (35) on its end face and a clamping part (36) on its upper end face. The clamping part (36) is designed to be inclined.

4. The mechanical angular positioning mechanism for secondary processing of workpieces as described in claim 3, characterized in that: The drive assembly (4) also includes a first threaded groove (45) formed on the end face of the worm (42), and the worm (42) is threadedly connected to the turbine rotor (31) through the first threaded groove (45).

5. A mechanical angular positioning mechanism for secondary processing of workpieces as described in claim 4, characterized in that: The end face of the worm (42) is fixedly connected to an external plate (43), and the end face of the external plate (43) is fixedly connected to a hand crank (44).

6. The mechanical angular positioning mechanism for secondary machining of workpieces as described in claim 5, characterized in that: The outer wall of the main body (1) is also provided with a locking assembly (5), which includes a positioning groove (55) opened on the outer wall of the turbine rotating body (31) and a pressure block (54) adapted to the cross section of the positioning groove (55).

7. A mechanical angular positioning mechanism for secondary processing of workpieces as described in claim 6, characterized in that: The outer wall of the main body (1) is provided with a clamping screw (51), and the end face of the clamping screw (51) is provided with a second threaded groove (53). The pressure block (54) is rotatably connected to the end face of the clamping screw (51).

8. A mechanical angular positioning mechanism for secondary machining of workpieces as described in claim 7, characterized in that: The clamping screw (51) is threaded to the outer wall of the main body (1) through the second threaded groove (53), and a control rod (52) is fixedly connected to the end face of the clamping screw (51).

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