Round steel machining positioning tooling

Abstract

This utility model discloses a positioning fixture for round steel processing, specifically relating to the field of round steel processing technology. It includes: a fixed platform, a sliding cavity on the top side of the fixed platform, and sliders symmetrically arranged at both ends inside the sliding cavity. The top ends of both sliders extend outside the sliding cavity and are connected to a fixed plate. A moving mechanism is provided inside the fixed platform to drive the sliders to move within the sliding cavity. This utility model, through the arrangement of a fixed plate, positioning seat, fixed frame, connecting arms, and clamping arms, can control a movable block to drive multiple sets of connecting arms to slide within a slide rail. This allows the connecting arms to quickly close or separate multiple clamping arms. After extending both ends of the frustum between the two sets of clamping arms, the multiple clamping arms can close and press against the frustum, thus quickly and stably suspending and positioning the frustum. It can effectively fix frustums of different diameters, is precise and reliable, and has good performance.

Description

Technical Field

[0001] This utility model relates to the field of round steel processing technology, and specifically to a positioning fixture for round steel processing. Background Technology

[0002] Round steel refers to solid, long strips of steel with a circular cross-section, and its specifications are indicated by its diameter. Based on different manufacturing processes, round steel can be divided into three types: hot-rolled, forged, and cold-drawn. Based on different chemical compositions, it can be classified as low-carbon steel, medium-carbon steel, and high-carbon steel. It is widely used in mechanical parts, building structures, and hardware products.

[0003] Currently, in the processing of round steel, it is often necessary to fix the workpiece to ensure stability during processing. However, the existing round steel processing positioning fixtures mostly use two arc-shaped clamps to hold the workpiece fixed at the bottom of the round steel. However, for frustum components of different sizes, such as when the frustum is relatively slender, not only is the stability poor and the operation of the milling cutter inconvenient, but the positioning accuracy is also poor when the diameter difference is large. The arc-shaped clamps are difficult to fit effectively, resulting in poor performance. Utility Model Content

[0004] The purpose of this utility model is to provide a positioning fixture for round steel processing. By setting up a fixed plate, positioning seat, fixed frame, connecting arm and clamping arm, the movable block can be controlled to drive multiple sets of connecting arms to slide in the slide rail, so that the connecting arms drive multiple clamping arms to quickly close or separate. After the two ends of the truncated cone are respectively inserted between the two sets of clamping arms, the multiple clamping arms can close and abut against the truncated cone, thereby quickly and stably suspending and positioning the truncated cone. It can effectively fix truncated cones of different diameters, and is accurate and reliable. It has a good effect and solves the above-mentioned shortcomings in the technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a round steel processing positioning fixture, comprising:

[0006] A fixed platform is provided with a sliding cavity on its top side. Slider blocks are symmetrically arranged at both ends inside the sliding cavity. The top ends of the two slider blocks extend outside the sliding cavity and are connected to a fixed plate. A moving mechanism is provided inside the fixed platform, and the moving mechanism is used to drive the sliders to move inside the sliding cavity.

[0007] The inner top ends of the two fixed plates are rotatably connected to a connecting shaft via a pivot. One end of the connecting shaft is fixed with a positioning seat, and the other end of the connecting shaft is provided with a rotating mechanism. The side wall of the positioning seat is provided with multiple fixed frames in a circular array. Movable blocks are slidably connected inside the fixed frames. A connecting arm is provided on the side of the movable block that extends outside the fixed frame and is close to the positioning seat. Each of the multiple connecting arms is fixed with a clamping arm at one end relative to the movable block. A driving mechanism is provided inside the positioning seat, and the driving mechanism is used to drive the multiple movable blocks to move synchronously.

[0008] Preferably, the inner side of the positioning seat is provided with multiple slides in a circular array facing the clamping arm, and the connecting arm is slidably engaged in the slides.

[0009] Preferably, a rubber pad is provided on the inner side of the clamping arm.

[0010] Preferably, the moving mechanism includes a bidirectional screw rotatably connected to the slide cavity via a bearing, and the two sliders are respectively screwed to the two ends of the bidirectional screw. A first motor is fixed to one end of the fixed platform, and the output end of the first motor is connected to the bidirectional screw.

[0011] Preferably, the rotating mechanism is fixedly connected to a first gear at one end of the connecting shaft, and a second motor is fixed to the side wall of the fixing plate. The output end of the second motor is connected to a second gear that matches the first gear.

[0012] Preferably, the drive mechanism includes a threaded rod rotatably connected to a fixed frame via a bearing, the movable block being threadedly connected to the outside of the threaded rod, an annular cavity being provided inside the positioning seat, a gear ring being rotatably installed inside the annular cavity, one end of each of the multiple threaded rods extending into the annular cavity and connected to a driven gear meshing with the gear ring, a third motor being fixed to one end of the positioning seat, the output end of the third motor extending into the annular cavity and connected to a drive gear meshing with the gear ring.

[0013] Preferably, the sidewall of the toothed ring is provided with a plurality of limiting posts, and the inner side of the annular cavity is provided with a limiting groove that matches the limiting posts.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] By setting up structures such as a fixed plate, positioning seat, fixed frame, connecting arm and clamping arm, the movable block can be controlled to drive multiple sets of connecting arms to slide in the slide, so that the connecting arms drive multiple clamping arms to quickly close or separate. After the two ends of the truncated cone are respectively inserted between the two sets of clamping arms, the multiple clamping arms can close and abut against the truncated cone, thereby quickly and stably suspending and positioning the truncated cone. It can effectively fix truncated cones of different diameters, which is accurate, reliable and has a good effect.

[0016] By setting up a connecting shaft, a first gear, and a second gear, when the truncated cone is positioned between two positioning seats, the positioning seats can drive the truncated cone to rotate, thereby flexibly controlling the rotation and flipping of the truncated cone to further facilitate the milling tool's processing and greatly improve the processing positioning effect.

[0017] By incorporating structures such as a sliding cavity, a slider, and a bidirectional screw, the slider can move the two fixed plates closer together or further apart, thereby quickly adjusting the distance between the two positioning seats. This allows for better positioning and installation of truncated cones of different lengths, greatly improving the applicability of the device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

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

[0020] Figure 2 This is a longitudinal sectional view of the fixing platform of this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the front of the positioning seat of this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the back of the positioning seat of this utility model;

[0023] Figure 5 This is a longitudinal sectional view of the positioning seat of this utility model;

[0024] Figure 6 This is a cross-sectional view of the positioning seat of this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Fixed platform; 2. Slide cavity; 3. Slider; 4. Bidirectional screw; 5. First motor; 6. Fixed plate; 7. Connecting shaft; 8. Positioning seat; 9. First gear; 10. Second motor; 11. Second gear; 12. Fixed frame; 13. Movable block; 14. Connecting arm; 15. Slide rail; 16. Clamping arm; 17. Rubber pad; 18. Annular cavity; 19. Gear ring; 20. Threaded rod; 21. Driven gear; 22. Third motor; 23. Drive gear; 24. Limiting post; 25. Limiting groove. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0028] This utility model provides, for example Figures 1-6 The illustrated round steel machining positioning fixture includes:

[0029] A fixed platform 1 is provided with a sliding cavity 2 on its top side. Slider 3 is symmetrically arranged at both ends inside the sliding cavity 2. The top ends of the two sliders 3 extend to the outside of the sliding cavity 2 and are connected to a fixed plate 6. A moving mechanism is provided inside the fixed platform 1, and the moving mechanism is used to drive the sliders 3 to move inside the sliding cavity 2.

[0030] The moving mechanism includes a bidirectional screw 4 rotatably connected to the slide cavity 2 via bearings, and two sliders 3 are respectively screwed to the two ends of the bidirectional screw 4. A first motor 5 is fixed at one end of the fixed platform 1, and the output end of the first motor 5 is connected to the bidirectional screw 4.

[0031] The first motor 5 drives the bidirectional screw 4 to rotate, which in turn drives the two sliders 3 to move closer or further apart within the slide cavity 2. This allows the sliders 3 to move the two fixed plates 6 closer or further apart, thus quickly adjusting the distance between the two positioning seats 8. This enables better positioning and installation of truncated cones of different lengths, greatly improving the applicability of the device.

[0032] The inner tops of the two fixed plates 6 are rotatably connected to the connecting shaft 7 via a rotating shaft. One end of the connecting shaft 7 is fixed to the positioning seat 8, and the other end of the connecting shaft 7 is provided with a rotating mechanism. The side wall of the positioning seat 8 is provided with multiple fixed frames 12 in a circular array. The fixed frame 12 is slidably connected to the inside of the fixed frame 12. The end of the movable block 13 extending to the outside of the fixed frame 12 is provided with a connecting arm 14 near the side of the positioning seat 8. Each of the multiple connecting arms 14 is fixed with a clamping arm 16 at one end relative to the movable block 13. The positioning seat 8 is provided with a driving mechanism, which is used to drive the multiple movable blocks 13 to move synchronously.

[0033] The rotating mechanism is fixedly connected to the first gear 9 at one end of the connecting shaft 7. The second motor 10 is fixed to the side wall of the fixing plate 6. The output end of the second motor 10 is connected to the second gear 11 that matches the first gear 9.

[0034] After the truncated cone is positioned between the two positioning seats 8, the second motor 10 can be started by the control system. The second motor 10 can drive the first gear 9 to rotate through the second gear 11, so that the first gear 9 drives the positioning seat 8 to rotate through the connecting shaft 7. Then the positioning seat 8 can drive the truncated cone to rotate, so that the rotation and flipping of the truncated cone can be flexibly controlled, so as to further facilitate the milling tool processing and greatly improve the processing positioning effect.

[0035] The inner side of the positioning base 8 is provided with multiple slide rails 15 arranged in a circular array facing the clamping arm 16, and the connecting arm 14 is slidably engaged within the slide rails 15. Based on this, by setting the slide rails 15, the connecting arm 14 can slide within the slide rails 15, thereby greatly ensuring the stability of the movement of the connecting arm 14.

[0036] A rubber pad 17 is provided on the inner side of the clamping arm 16. Based on this, the clamping effect can be further enhanced by the elasticity of the rubber pad 17.

[0037] The drive mechanism includes a threaded rod 20 rotatably connected to the fixed frame 12 via a bearing, a movable block 13 connected to the outside of the threaded rod 20 via a threaded connection, an annular cavity 18 is provided inside the positioning seat 8, a gear ring 19 is rotatably installed inside the annular cavity 18, one end of each of the multiple threaded rods 20 extends into the annular cavity 18 and is connected to a driven gear 21 that meshes with the gear ring 19, a third motor 22 is fixed to one end of the positioning seat 8, the output end of the third motor 22 extends into the annular cavity 18 and is connected to a drive gear 23 that meshes with the gear ring 19.

[0038] In use, the third motor 22 drives the drive gear 23 to rotate, which in turn drives the gear ring 19 to rotate. The gear ring 19 then drives multiple driven gears 21 to rotate synchronously, which in turn drives the connected threaded rod 20 to rotate. The threaded rod 20 then drives the movable block 13 to slide within the fixed frame 12, which in turn drives the connecting arm 14 to slide within the slide rail 15. The connecting arm 14 then drives the clamping arm 16 to move, allowing multiple clamping arms 16 to quickly close or separate. After inserting both ends of the frustum between the two sets of clamping arms 16, the multiple clamping arms 16 can be controlled to close and press against the frustum, thus quickly and stably suspending and positioning the frustum. It can effectively fix frustums of different diameters with precision and reliability, and has a good performance.

[0039] The toothed ring 19 has multiple limiting posts 24 on its sidewalls, and the annular cavity 18 has limiting grooves 25 that match the limiting posts 24 on its inner side. Based on this, by setting the limiting posts 24 and the limiting grooves 25, the toothed ring 19 can drive the limiting posts 24 to slide within the limiting grooves 25, thereby greatly ensuring the stable rotation of the toothed ring 19.

[0040] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A positioning fixture for machining round steel bars, characterized in that, include: A fixed platform (1) is provided with a sliding cavity (2) on its top side. Sliders (3) are symmetrically arranged at both ends inside the sliding cavity (2). The top ends of the two sliders (3) extend to the outside of the sliding cavity (2) and are connected to a fixed plate (6). A moving mechanism is provided inside the fixed platform (1), and the moving mechanism is used to drive the sliders (3) to move inside the sliding cavity (2). The inner top of each of the two fixed plates (6) is rotatably connected to a connecting shaft (7) via a rotating shaft. One end of the connecting shaft (7) is fixed with a positioning seat (8), and the other end of the connecting shaft (7) is provided with a rotating mechanism. The side wall of the positioning seat (8) is provided with multiple fixed frames (12) in a circular array. The fixed frame (12) is slidably connected with a movable block (13). The movable block (13) extends to the outside of the fixed frame (12) and is provided with a connecting arm (14) on the side near the positioning seat (8). Each of the multiple connecting arms (14) is fixed with a clamping arm (16) at one end relative to the movable block (13). The positioning seat (8) is provided with a driving mechanism, which is used to drive the multiple movable blocks (13) to move synchronously.

2. The round steel processing positioning fixture according to claim 1, characterized in that: The inner side of the positioning seat (8) is provided with multiple slides (15) in a ring array facing the clamping arm (16), and the connecting arm (14) is slidably engaged in the slides (15).

3. The round steel processing positioning fixture according to claim 1, characterized in that: A rubber pad (17) is provided on the inner side of the clamping arm (16).

4. The round steel processing positioning fixture according to claim 1, characterized in that: The moving mechanism includes a bidirectional screw (4) rotatably connected to the slide cavity (2) via a bearing. The two sliders (3) are respectively screwed to the two ends of the bidirectional screw (4) via threads. A first motor (5) is fixed at one end of the fixed platform (1), and the output end of the first motor (5) is connected to the bidirectional screw (4).

5. The round steel processing positioning fixture according to claim 1, characterized in that: The rotating mechanism is fixedly connected to a first gear (9) at one end of the connecting shaft (7), and a second motor (10) is fixed to the side wall of the fixing plate (6). The output end of the second motor (10) is connected to a second gear (11) that matches the first gear (9).

6. The round steel processing positioning fixture according to claim 1, characterized in that: The drive mechanism includes a threaded rod (20) rotatably connected to the fixed frame (12) via a bearing. The movable block (13) is screwed onto the outside of the threaded rod (20). The positioning seat (8) has an annular cavity (18) inside. A gear ring (19) is rotatably installed inside the annular cavity (18). One end of each of the multiple threaded rods (20) extends into the annular cavity (18) and is connected to a driven gear (21) that meshes with the gear ring (19). A third motor (22) is fixed to one end of the positioning seat (8). The output end of the third motor (22) extends into the annular cavity (18) and is connected to a drive gear (23) that meshes with the gear ring (19).

7. The round steel processing positioning fixture according to claim 6, characterized in that: The toothed ring (19) has a plurality of limiting posts (24) on its sidewall, and the annular cavity (18) has a limiting groove (25) that matches the limiting posts (24) on its inner side.

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