A step shaft machining positioner for shaft-type parts

Abstract

This utility model discloses a step shaft machining locator for shaft-type parts, relating to the field of workpiece machining technology. It includes a base plate with two sliding connecting shells on its upper surface. Each connecting shell has a fixed support frame inside, and a transmission frame slides inside the support frame. The support frame contains a set of clamping components for holding the workpiece, including a positioning rod fixed to the inner wall of the support frame. This step shaft machining locator uses a motor to drive a transmission worm gear, which, through its interaction with an arc-shaped worm wheel, causes the transmission frame to slide inside the support frame. Simultaneously, the transmission frame and transmission shaft drive a connecting sleeve to slide around the connecting rod, causing the connecting rod to move a clamping plate and clamp the workpiece surface. The two sets of clamping components allow for simultaneous centered clamping of workpieces with different diameters, facilitating subsequent workpiece machining.

Description

Technical Field

[0001] This utility model relates to a shaft positioning device, specifically a stepped shaft machining positioning device for shaft parts, belonging to the field of workpiece machining technology. Background Technology

[0002] In industrial products, shaft parts are used in the maintenance of parts processed by one or more CNC machine tools. Shaft parts are one of the typical parts frequently encountered in hardware accessories. They are mainly used to support transmission components, transmit torque and bear loads. Depending on the structural form of the shaft parts, positioning fixtures are required to position the shaft parts when machining shaft holes.

[0003] Chinese patent application publication number CN218856286U discloses a positioning fixture for machining multiple holes in shaft-type parts. This utility model places the shaft-type parts inside the limiting groove, and then rotates the drive block to drive the threaded rod to rotate inside the threaded ring, thereby achieving the purpose of quickly positioning shaft-type parts of different sizes and facilitating subsequent hole machining of the shaft-type parts.

[0004] Although the above-mentioned patent solution can position shaft parts of different sizes, the positioning fixture in the above-mentioned patent uses a rotating drive block to squeeze and fix the workpiece. When squeezing smaller tools, it will squeeze the center point of the workpiece downward, resulting in different center point heights for workpieces of different sizes after fixing, thus affecting the subsequent processing effect.

[0005] Therefore, a step shaft machining positioner for shaft-type parts is proposed here. Utility Model Content

[0006] This utility model proposes a step shaft machining locator for shaft-type parts. By using the connecting shell to drive two sets of clamping components, it can simultaneously center and clamp the workpiece at positions with different diameters, which facilitates subsequent processing of the workpiece.

[0007] This utility model is achieved through the following technical solution: a step shaft machining locator for shaft parts, including a base plate, two connecting shells sliding on the upper surface of the base plate, a support frame fixed inside each connecting shell, a transmission frame sliding inside the support frame, and a set of clamping components for clamping the workpiece inside the support frame. The clamping components include a positioning rod fixed to the inner wall of the support frame, a connecting rod hinged to the periphery of the positioning rod, a clamping plate hinged to the end of the connecting rod away from the positioning rod, and an anti-slip pad fixed to one side of the clamping plate.

[0008] Furthermore, a connecting sleeve disposed inside the transmission frame is slidably sleeved around the outer periphery of the connecting rod, and a transmission shaft is fixed on both sides of the connecting sleeve, and the transmission shaft is hinged inside the transmission frame.

[0009] Furthermore, the base plate is internally provided with a transmission assembly that drives the two connecting shells to move. The transmission assembly includes a bidirectional threaded rod that is rotatably sleeved inside the base plate. The two ends of the bidirectional threaded rod are provided with two threads in opposite directions. One end of the bidirectional threaded rod rotatably passes through the base plate and is fixedly sleeved with a rocker arm.

[0010] Furthermore, both ends of the bidirectional threaded rod are threaded with transmission blocks, and the upper surface of the base plate has two moving grooves, with the two transmission blocks sliding inside the two moving grooves respectively.

[0011] The connecting housing is equipped with a power assembly that drives the transmission frame to rotate. The power assembly includes a motor fixed to the inner wall of the connecting housing. A transmission worm is fixed to the output end of the motor. An arc-shaped worm wheel is threadedly connected to the outer periphery of the transmission worm, and the arc-shaped worm wheel is fixed to one side of the transmission frame.

[0012] Furthermore, two positioning blocks are rotatably sleeved around the outer periphery of the transmission worm gear, and the positioning blocks are fixed to the inner sidewall of the connecting housing.

[0013] Furthermore, the inner wall of the support frame has two limiting grooves, and both sides of the transmission frame are fixed with arc-shaped sliding rods, and the two arc-shaped sliding rods slide inside the two limiting grooves respectively.

[0014] This utility model provides a positioning device for machining stepped shafts of shaft-type parts, which has the following beneficial effects:

[0015] 1. This stepped shaft machining locator for shaft-type parts uses a starting motor to drive the transmission worm gear to rotate. Through the cooperation between the transmission worm gear and the arc-shaped worm wheel, the transmission frame can slide inside the support frame. At the same time, the transmission frame and the transmission shaft drive the connecting sleeve to slide around the connecting rod, so that the connecting rod drives the clamping plate to move and clamp the workpiece surface. The two sets of clamping components can simultaneously clamp the workpiece at different diameter positions, which is convenient for subsequent processing of the workpiece. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the transmission component in this utility model;

[0018] Figure 3 This is a three-dimensional sectional view of the internal structure of the connecting shell in this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the clamping component in this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Base plate; 11. Moving groove; 2. Connecting shell; 3. Support frame; 31. Limiting groove; 4. Transmission frame; 41. Arc-shaped slide rod; 5. Clamping assembly; 51. Positioning rod; 52. Connecting rod; 53. Clamping plate; 54. Anti-slip pad; 55. Connecting sleeve; 56. Transmission shaft; 6. Power assembly; 61. Motor; 62. Transmission worm gear; 63. Arc-shaped worm wheel; 64. Positioning block; 7. Transmission assembly; 71. Two-way threaded rod; 72. Transmission block; 73. Rocker arm. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0022] Please see Figures 1-4 The present invention proposes the following implementation scheme: a step shaft machining locator for shaft parts, including a base plate 1, two connecting shells 2 sliding on the upper surface of the base plate 1, a support frame 3 fixed inside each connecting shell 2, a transmission frame 4 sliding inside the support frame 3, and a set of clamping components 5 for clamping the workpiece inside the support frame 3. The clamping components 5 include a positioning rod 51 fixed to the inner side wall of the support frame 3, a connecting rod 52 hinged to the periphery of the positioning rod 51, a clamping plate 53 hinged to the end of the connecting rod 52 away from the positioning rod 51, and an anti-slip pad 54 fixed to one side of the clamping plate 53.

[0023] Please refer to this carefully. Figure 4 The outer periphery of the connecting rod 52 is slidably sleeved with a connecting sleeve 55 disposed inside the transmission frame 4. Both sides of the connecting sleeve 55 are fixed with a transmission shaft 56, and the transmission shaft 56 is hinged inside the transmission frame 4.

[0024] In the above scheme, the transmission frame 4 drives the transmission shaft 56 to move, and drives the connecting sleeve 55 to slide around the connecting rod 52, so that the connecting rod 52 rotates around the positioning rod 51, and drives the clamping plate 53 to move.

[0025] Please refer to this carefully. Figure 2 The base plate 1 is equipped with a transmission assembly 7 that drives the two connecting shells 2 to move. The transmission assembly 7 includes a bidirectional threaded rod 71 that is rotatably sleeved inside the base plate 1. The two ends of the bidirectional threaded rod 71 are provided with two threads in opposite directions. One end of the bidirectional threaded rod 71 rotatably passes through the base plate 1 and is fixedly sleeved with a rocker arm 73.

[0026] Both ends of the bidirectional threaded rod 71 are threaded with transmission blocks 72. The upper surface of the base plate 1 has two moving grooves 11, and the two transmission blocks 72 slide inside the two moving grooves 11 respectively.

[0027] In the above scheme, the rotating rocker arm 73 drives the bidirectional threaded rod 71 to rotate, and drives the two connecting housings 2 to move through the transmission block 72.

[0028] Please refer to this carefully. Figure 3 The connecting housing 2 is equipped with a power assembly 6 that drives the transmission frame 4 to rotate. The power assembly 6 includes a motor 61 fixed to the inner wall of the connecting housing 2. A transmission worm 62 is fixed to the output end of the motor 61. An arc-shaped worm wheel 63 is threadedly connected to the outer periphery of the transmission worm 62 and is fixed to one side of the transmission frame 4.

[0029] Two positioning blocks 64 are rotatably sleeved around the outer periphery of the transmission worm gear 62, and the positioning blocks 64 are fixed to the inner side wall of the connecting housing 2.

[0030] Please refer to this carefully. Figure 3 and Figure 4 The inner wall of the support frame 3 has two limiting grooves 31, and both sides of the transmission frame 4 are fixed with arc-shaped sliding rods 41, and the two arc-shaped sliding rods 41 slide inside the two limiting grooves 31 respectively.

[0031] In the above scheme, the starting motor 61 drives the transmission worm 62 to rotate, and through the cooperation between the transmission worm 62 and the arc-shaped worm wheel 63, the transmission frame 4 can slide inside the support frame 3.

[0032] In use, the rotating rocker arm 73 drives the bidirectional threaded rod 71 to rotate, and through the transmission block 72 drives the two connecting shells 2 to move. The distance between the two connecting shells 2 can be adjusted according to the workpiece of different specifications, so that the two sets of clamping components 5 can make more stable contact with the workpiece surface. The workpiece is placed inside the two connecting shells 2. Then, the motor 61 is started to drive the transmission worm gear 62 to rotate. Through the cooperation between the transmission worm gear 62 and the arc-shaped worm wheel 63, the transmission frame 4 can be driven to slide inside the support frame 3. At the same time, the transmission frame 4 drives the transmission shaft 56 to move, and drives the connecting sleeve 55 to slide around the connecting rod 52. The connecting rod 52 rotates around the positioning rod 51 and drives the clamping plate 53 to move. Multiple clamping plates 53 can move simultaneously to clamp the workpiece surface. The two sets of clamping components 5 can simultaneously clamp the workpiece at different diameter positions, which is convenient for the subsequent processing of the workpiece.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A stepped shaft machining positioner for shaft parts, comprising a base plate (1), characterized in that: Two connecting shells (2) slide on the upper surface of the base plate (1). Each connecting shell (2) has a support frame (3) fixed inside. A transmission frame (4) slides inside the support frame (3). A set of clamping components (5) for clamping the workpiece is provided inside the support frame (3). The clamping components (5) include a positioning rod (51) fixed to the inner side wall of the support frame (3). A connecting rod (52) is hinged to the periphery of the positioning rod (51). A clamping plate (53) is hinged to the end of the connecting rod (52) away from the positioning rod (51). An anti-slip pad (54) is fixed to one side of the clamping plate (53). The connecting housing (2) is equipped with a power assembly (6) that drives the transmission frame (4) to rotate. The power assembly (6) includes a motor (61) fixed to the inner wall of the connecting housing (2). The output end of the motor (61) is fixed with a transmission worm (62). The outer periphery of the transmission worm (62) is threaded with an arc-shaped worm wheel (63), and the arc-shaped worm wheel (63) is fixed to one side of the transmission frame (4).

2. The stepped shaft machining positioner of claim 1, wherein: The connecting rod (52) is slidably sleeved with a connecting sleeve (55) disposed inside the transmission frame (4). Both sides of the connecting sleeve (55) are fixed with a transmission shaft (56), and the transmission shaft (56) is hinged inside the transmission frame (4).

3. The stepped shaft machining positioner of claim 1, wherein: The base plate (1) is provided with a transmission assembly (7) that drives the two connecting shells (2) to move. The transmission assembly (7) includes a bidirectional threaded rod (71) that is rotatably sleeved inside the base plate (1). The two ends of the bidirectional threaded rod (71) are provided with two threads in opposite directions. One end of the bidirectional threaded rod (71) rotatably passes through the base plate (1) and is fixedly sleeved with a rocker arm (73).

4. The stepped shaft machining positioner of claim 3, wherein: Both ends of the bidirectional threaded rod (71) are threaded with transmission blocks (72), and the upper surface of the base plate (1) has two moving grooves (11), and the two transmission blocks (72) slide inside the two moving grooves (11) respectively.

5. The stepped shaft machining positioner of claim 1, wherein: The inner wall of the support frame (3) has two limiting grooves (31), and both sides of the transmission frame (4) are fixed with arc-shaped slide rods (41), and the two arc-shaped slide rods (41) slide inside the two limiting grooves (31) respectively.

6. The stepped shaft machining positioner of claim 1, wherein: Two positioning blocks (64) are rotatably sleeved around the outer periphery of the transmission worm (62), and the positioning blocks (64) are fixed to the inner side wall of the connecting shell (2).

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