Manual centering device for circular ring type workpiece of rotary table
By designing a manual alignment device for ring-shaped workpieces with columns, guide shafts, and polyurethane pressure blocks, the problem of cumbersome alignment operations for ring-shaped workpieces on the turntable is solved, achieving rapid alignment and protecting the inner wall of the workpiece. It is suitable for various turntable stations.
Patent Information
- Application Number
- CN202422886421.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-11-26
AI Technical Summary
Existing technologies are cumbersome and inefficient when aligning circular workpieces on a turntable, especially for turntable stations without robotic arms, where centering operations cannot be effectively performed, and traditional methods are prone to damaging the inner wall of the workpiece.
Design a manual alignment device for ring-shaped workpieces, including a column, guide shaft, front plate, and polyurethane pressure block. Through the cooperation of the guide shaft and tension spring, the workpiece can be quickly aligned with the center of the turntable, avoiding frequent installation and removal of the indicator bar. It is suitable for turntable stations with or without robotic arms.
It simplifies the operation process, improves work efficiency, protects the inner wall of the workpiece, expands the application range, reduces damage to the workpiece, and improves processing quality.
Smart Images
Figure CN223820148U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the rack automation technical field, concretely relates to a circular ring workpiece manual centering device for turntable. BACKGROUND
[0002] In the field of machine tool automation, the turntable is a common mechanical device, widely used in various production and processing scenes. The turntable device usually drives the turntable platform to rotate uniformly or intermittently along the turntable axis by an electric drive device. The turntable platform is usually circular in design, with a circular groove in the center, and a T-shaped groove spreading outward from the center of the turntable platform, used for installing the limiting tooling of the workpiece.
[0003] In discrete manufacturing enterprises, the production and processing mode of workpiece products is usually multi-variety and small-batch. When processing circular ring workpieces using a turntable, it is essential to ensure that the workpiece center is aligned with the turntable center, as this directly affects the accuracy and efficiency of subsequent processing. However, the current processing scheme has obvious shortcomings. Specifically, the method of aligning the center of the turntable by aligning the origin of the processing robot with the center of the turntable, while achieving automation to some extent, requires the installation and removal of soft indicator rods on the robot gripper each time the centering is performed, which is cumbersome and inefficient. In addition, this scheme also has the problem of low applicability, and for those turntable stations that do not have a robot, it is not possible to effectively perform the centering operation of the circular ring workpiece.
[0004] In view of these problems in the prior art, it is necessary to develop a more efficient, convenient and widely applicable circular ring workpiece centering device for a turntable. INVENTION CONTENTS
[0005] To solve the above problems, the utility model provides a circular ring workpiece manual centering device for a turntable, which realizes the manual and rapid alignment of the circular ring workpiece with the center of the turntable. Compared with the traditional centering method using a robot and a soft indicator rod, this device does not need to frequently install and remove the indicator rod, greatly simplifying the operation process and improving the work efficiency.
[0006] The technical solution of the utility model is as follows:
[0007] A kind of circular ring type workpiece manual centering device for turntable, including stand, guide shaft one, front plate one, tension spring, guide shaft two and front plate two, stand is not rotatably connected in the center position of turntable platform, the center of stand is concentric with the center of turntable platform, the top of stand is installed with the guide shaft one and guide shaft two that can slide horizontally, front plate one and front plate two are fixedly installed at the one end of guide shaft one and guide shaft two respectively, two pressing blocks are fixedly arranged at the end of front plate one, two pressing blocks on front plate one are symmetrically arranged and the symmetry plane passes through the center of stand, two pressing blocks are fixedly arranged at the end of front plate two, two pressing blocks on front plate two are symmetrically arranged and the symmetry plane passes through the center of stand and is perpendicular to the symmetry plane of two pressing blocks on front plate one.
[0008] Driving mechanism is set in the tension spring between rear stop block two and stand.
[0009] The bottom of stand is inserted in the circular groove for installation on turntable platform with clearance fit, slot matching T-shaped groove on turntable platform is arranged at the bottom of stand, and limit block is installed in slot and T-shaped groove to prevent relative rotation between stand and turntable platform.
[0010] Chamfer is arranged around the bottom of stand.
[0011] Guide shaft one and guide shaft two are installed on stand through linear bearing respectively.
[0012] Rear stop block one and rear stop block two are fixedly connected at the other end of guide shaft one and guide shaft two respectively.
[0013] Driving mechanism is tension spring set between rear stop block two and stand.
[0014] Tension spring support one is fixedly arranged on rear stop block two, and tension spring support two is fixedly arranged on stand, and two ends of tension spring are fixedly connected on tension spring support one and tension spring support two respectively.
[0015] The outer end of pressing block is provided with spherical head structure made of polyurethane material.
[0016] Acute included angle is arranged between two symmetrical pressing blocks.
[0017] The beneficial effects of the utility model lie in:
[0018] 1、The utility model discloses a kind of circular ring type workpiece manual centering device for turntable, which realizes the manual quick alignment of circular ring type workpiece and turntable center by designing stand, guide shaft, front plate and polyurethane pressing block etc.
[0019] 2. The utility model discloses a ring workpiece manual centering device for turntable, which is applicable to the turntable station equipped with a mechanical hand and also applicable to the turntable station without a mechanical hand, thereby expanding the application range and meeting the centering demand in more scenes.
[0020] 3. The utility model discloses a ring workpiece manual centering device for turntable, which is designed with polyurethane briquetting, has moderate hardness and good wear resistance, effectively reduces the damage to the inner wall of the workpiece, protects the integrity of the workpiece surface and improves the processing quality. BRIEF DESCRIPTION OF DRAWINGS
[0021] The scheme and advantages of the present application will become clear to those skilled in the art from the following detailed description of the preferred embodiments. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not considered as limiting the utility model.
[0022] In the drawings:
[0023] Figure 1 Fig. 1 is a perspective view of a ring workpiece manual centering device for turntable according to an embodiment of the utility model;
[0024] Figure 2 Fig. 2 is a perspective view of the ring workpiece manual centering device for turntable in use according to the embodiment of the utility model;
[0025] Figure 3 Fig. 3 is an action station diagram of the ring workpiece manual centering device for turntable according to the embodiment of the utility model; Figure 1
[0026] Figure 4 Fig. 4 is an action station diagram of the ring workpiece manual centering device for turntable according to the embodiment of the utility model; Figure 2
[0027] Figure 5 Fig. 5 is an action station diagram of the ring workpiece manual centering device for turntable according to the embodiment of the utility model; Figure 3
[0028] The components represented by the reference numerals in the drawings are:
[0029] The utility model: 1, stand; 2, limit block; 3, linear bearing; 4, guide shaft one; 5, back stopper two; 6, front plate one; 7, tension spring support one; 8, tension spring; 9, briquetting; 10, tension spring support two; 11, back stopper one; 12, guide shaft two; 13, front plate two; 14, turntable platform; 15, workpiece. Detailed Implementation Example
[0030] like Figure 1 As shown, the manual centering device for ring-shaped workpieces on a turntable consists of components such as column 1, guide shaft 4, front plate 6, tension spring 8, guide shaft 12, and front plate 13.
[0031] The column 1 is designed as a long, cylindrical structure with a clearance fit at its bottom that matches the circular groove of the turntable platform 14, allowing the column 1 to be securely inserted into the center of the turntable platform 14. A slot matching the T-shaped groove on the turntable platform 14 is also provided at the bottom of the column 1, with a limit block 2 installed inside the slot to prevent relative rotation between the column 1 and the turntable platform 14, ensuring that the center of the column 1 remains concentric with the center of the turntable platform 14. Furthermore, chamfers are machined around the bottom of the column 1 to facilitate its smooth sliding into the circular groove of the turntable platform 14 during installation.
[0032] At the top of column 1, guide shaft 1 4 and guide shaft 2 12 are respectively installed via linear bearing 3. These two guide shafts can slide horizontally on column 1. One end of guide shaft 1 4 and guide shaft 2 12 are fixedly connected to front plate 1 6 and front plate 2 13 respectively. These two front plates have the same structure but are arranged symmetrically from left to right.
[0033] Two pressure blocks 9 are fixedly installed at the ends of both front plate 6 and front plate 13. These pressure blocks 9 are made of polyurethane and designed with a spherical structure. This design not only effectively reduces damage to the inner wall of the ring-shaped workpiece but also ensures good adaptability during the alignment process. The two pressure blocks 9 on front plate 6 are symmetrically arranged, and their plane of symmetry passes through the center of column 1. Similarly, the two pressure blocks 9 on front plate 13 are also symmetrically arranged, but their plane of symmetry is perpendicular to the plane of symmetry of the pressure blocks 9 on front plate 6. This arrangement ensures effective alignment of the ring-shaped workpiece in any direction.
[0034] In addition, rear stop blocks 11 and 25 are fixedly connected to the other ends of guide shaft 11 and guide shaft 212, respectively. A tension spring 8 is installed between rear stop block 25 and column 1 as a driving mechanism to ensure that guide shaft 212 and its connected front plate 213 are always subjected to a thrust away from column 1. To achieve a stable connection of tension spring 8, a tension spring support 1 7 is fixedly installed on rear stop block 25, and a tension spring support 2 10 is fixedly installed on column 1. Both ends of tension spring 8 are fixedly connected to these two tension spring supports, respectively.
[0035] In use, the operator first installs the column 1 to the center of the turntable platform 14 and fixes it by the limiting block 2. Then, the operator places the ring-shaped workpiece on the turntable platform 14 and manually adjusts the positions of the guide shaft one 4 and the guide shaft two 12 so that the pressing blocks 9 on the front plate one 6 and the front plate two 13 respectively contact the inner wall of the ring-shaped workpiece. Since the pressing blocks 9 are made of polyurethane material and designed as ball head structure, the damage to the inner wall of the workpiece can be effectively reduced during the centering process. At the same time, due to the action of the tension spring 8, the front plate two 13 will always be subjected to a pushing force away from the column 1, thereby helping the operator to more conveniently perform the centering operation.
[0036] During the centering process, the operator can observe the contact condition of the pressing blocks 9 with the inner wall of the ring-shaped workpiece and manually adjust the positions of the guide shaft one 4 and the guide shaft two 12 to make all the pressing blocks contact the surface of the workpiece. When all the pressing blocks contact the surface of the workpiece, it is considered that the center of the ring-shaped workpiece has coincided with the center of the turntable platform 14, thereby completing the centering operation. Embodiment
[0037] The ring-shaped workpiece manual centering device for the turntable mainly comprises a column 1.
[0038] The bottom of the column 1 is designed with a notch, and the notch is provided with a limiting block 2 for fixing the position of the device on the turntable and limiting its rotational freedom. The bottom edge of the column 1 is also chamfered to facilitate the accurate placement of the column into the recess in the center of the turntable, thereby playing a guiding role.
[0039] Four planes are machined on the upper side of the column 1, and the four planes present a square shape when viewed from above, and the center of the square coincides with the axis of the column. In each plane, two through holes are machined, and the axes of the two through holes constitute a plane parallel to the bottom surface of the column. These through holes are used to install the linear bearings 3.
[0040] Linear bearings 3 are arranged at both ends of all the through holes above the column 1; in the same plane, two guide shafts, namely the guide shaft one 4 and the guide shaft two 12, are respectively installed in the linear bearings 3. The front ends of the two guide shafts are respectively connected to the front plate one 6 and the front plate two 13; the front plate one 6 and the front plate two 13 are left-right symmetrical structures, and the front ends of both sides are machined with inclined surfaces, and the inclined surfaces are machined with threaded holes; in the threaded holes, polyurethane pressing blocks 9 are installed.
[0041] The tail of the polyurethane pressing block 9 is a metal external thread structure, which can be conveniently screwed into the threaded hole of the front plate; the front end is a spherical head-shaped polyurethane with higher hardness, which ensures the softness when contacting the workpiece and ensures sufficient hardness to resist the pressure when centering; the installation position of the polyurethane pressing block 9 should be such that the height difference between the spherical head portion in front and the front surfaces of the front plate one 6 and the front plate two 13 is consistent.
[0042] At the tail ends of the guide shaft one 4 and the guide shaft two 12, rear stop one 11 and rear stop two 5 are respectively arranged. Above the rear stop two 5, a threaded hole is machined, and a tension spring support one 7 is arranged. At the corresponding position of the top of the column 1, a threaded hole is also machined, and a tension spring support two 10 is arranged. The lower part of the tension spring support one 7 and the tension spring support two 10 is an external thread, and the upper part is machined with a notch for installing the tension spring 8.
[0043] The working principle of the device is based on the geometric principle that the intersection of two non-parallel chords on a circle is the center of the circle; as shown in Figures 2 to 5 When in use, first fix the bottom of the column 1 at the center position of the turntable, and put the limiting block 2 into the T-shaped groove on the turntable; then move the workpiece 15 to make it contact with the two polyurethane pressing blocks 9 at the front end of a front plate (such as the front plate one 6). Then, move the workpiece along the direction of the guide shaft (such as the guide shaft one 4 and the guide shaft two 12), while manually adjusting the position of the other front plate (such as the front plate two 13), so that all the polyurethane pressing blocks 9 are in contact with the surface of the workpiece. At this time, it can be judged that the center of the workpiece 15 has coincided with the center of the turntable platform 14.
[0044] Compared with the prior art, the device provided by the embodiment has the advantages of simple structure, small damage to the inner wall of the workpiece, wide application range, large adjustable range, simple operation and the like. In particular, by using a tension spring (such as the tension spring 8) on one side, the manual adjustment action of the workpiece in this direction is reduced, further improving the convenience of operation.
Claims
1. A manual centering device for ring-shaped workpieces on a turntable, characterized in that, The system includes a column (1), a guide shaft one (4), a front plate one (6), a tension spring (8), a guide shaft two (12), and a front plate two (13). The column (1) is non-rotatably connected to the center of the turntable platform (14), and the center of the column (1) is concentric with the center of the turntable platform (14). The guide shaft one (4) and the guide shaft two (12) are horizontally sliding and installed on the top of the column (1). One end of the guide shaft one (4) and the guide shaft two (12) are fixed respectively. The front plate is equipped with a first front plate (6) and a second front plate (13). Two pressure blocks (9) are fixedly installed at the end of the first front plate (6). The two pressure blocks (9) on the first front plate (6) are symmetrically arranged and their symmetrical plane passes through the center of the column (1). Two pressure blocks (9) are fixedly installed at the middle of the second front plate (13). The two pressure blocks (9) on the second front plate (13) are symmetrically arranged and their symmetrical plane passes through the center of the column (1) and is perpendicular to the symmetrical plane of the two pressure blocks (9) on the first front plate (6).
2. The manual centering device for a ring-shaped workpiece on a turntable according to claim 1, characterized in that, A drive mechanism is provided on the column (1) to ensure that the front plate (13) of the guide shaft (12) is always away from the column (1).
3. A manual centering device for a ring-shaped workpiece on a turntable according to claim 1 or 2, characterized in that, The column (1) is inserted into the circular groove on the turntable platform (14) for installation with a clearance fit at the bottom. A slot matching the T-shaped groove on the turntable platform (14) is provided at the bottom of the column (1). Limiting blocks (2) are installed in the slot and the T-shaped groove to prevent the column (1) from rotating relative to the turntable platform (14).
4. A manual centering device for a ring-shaped workpiece on a turntable according to claim 3, characterized in that, The bottom of the column (1) is chamfered around the perimeter.
5. A manual centering device for a ring-shaped workpiece on a turntable according to claim 1 or 2, characterized in that, The guide shaft one (4) and guide shaft two (12) are respectively mounted on the column (1) via linear bearings (3).
6. A manual centering device for a ring-shaped workpiece on a turntable according to claim 1 or 2, characterized in that, At the other end of guide shaft one (4) and guide shaft two (12), respectively, rear stop block one (11) and rear stop block two (5) are fixedly connected.
7. A manual centering device for a ring-shaped workpiece on a turntable according to claim 2, characterized in that, The driving mechanism is a tension spring (8) located between the rear stop block 2 (5) and the column (1).
8. A manual centering device for a ring-shaped workpiece on a turntable according to claim 7, characterized in that, A tension spring support column 1 (7) is fixedly installed on the rear stop block 2 (5), and a tension spring support column 2 (10) is fixedly installed on the column (1). The two ends of the tension spring (8) are fixedly connected to the tension spring support column 1 (7) and the tension spring support column 2 (10) respectively.
9. A manual centering device for a ring-shaped workpiece on a turntable according to claim 1 or 2, characterized in that, The outer end of the pressure block (9) is configured as a spherical structure made of polyurethane.
10. A manual centering device for a ring-shaped workpiece on a turntable according to claim 9, characterized in that, An acute angle is provided between the two symmetrical pressure blocks (9).