Welding positioning tool for harmonic reduction indexing plate

Abstract

The application provides a welding positioning tool for a harmonic reducer indexing disc, which comprises a workbench fixedly connected with a mounting shell at the bottom, a rotating mechanism arranged in the mounting shell, an arc-shaped shell arranged on the upper side of the workbench, and a positioning mechanism arranged in the arc-shaped shell and matched with the rotating mechanism. When the annular plate rotates, the arc-shaped extrusion groove cooperates with the guide rod to push the slotted slide rod, so that the extrusion head clamps the harmonic reducer indexing disc. Compared with the existing simple clamp or single reference surface positioning mode, the positioning precision is greatly improved, the positional deviation caused by displacement during welding is effectively reduced, the welding is facilitated, the tool universality and welding efficiency are improved, and the production cost and time are reduced.

Description

Technical Field

[0001] This utility model relates to the field of welding tooling technology, and more specifically, to a welding positioning tooling for a harmonic deceleration indexing plate. Background Technology

[0002] The harmonic reducer indexing plate is a key component in the harmonic reducer, and its welding quality has a significant impact on the performance and accuracy of the harmonic reducer. In the existing technology, when welding the harmonic reducer indexing plate, there is usually a lack of dedicated positioning fixtures, or the fixtures used have simple structures, making it difficult to achieve accurate positioning of the harmonic reducer indexing plate.

[0003] Existing positioning fixtures typically use C-clamps or similar mechanical clamps. By manually operating the C-clamps, pressure is applied to the indexing plate from the side or top to fix it to the worktable. This method is simple in structure and low in cost, but the positioning accuracy depends entirely on the operator's experience and technique, making it difficult to guarantee consistency in positioning each time. During the welding process, the indexing plate is prone to slight displacement due to vibration or external forces, affecting the welding quality and consequently the performance and service life of the harmonic reducer indexing plate. In addition, existing fixtures often lack adjustment functions and cannot adapt to different specifications of harmonic reducer indexing plates, resulting in poor versatility and increased production costs and time.

[0004] Therefore, we made improvements and proposed a welding positioning fixture for the harmonic deceleration indexing plate. Utility Model Content

[0005] The purpose of this utility model is as follows: Existing positioning fixtures typically use C-clamps or similar mechanical clamps. By manually operating the C-clamps, pressure is applied to the indexing plate from the side or top to fix it to the worktable. This method is simple in structure and low in cost, but the positioning accuracy depends entirely on the operator's experience and operating skills, making it difficult to guarantee the consistency of positioning each time. During the welding process, the indexing plate is prone to slight displacement due to vibration or external force, affecting the welding quality and consequently affecting the performance and service life of the harmonic reduction indexing plate. In addition, existing fixtures often lack adjustment functions and cannot adapt to harmonic reduction indexing plates of different specifications, resulting in poor versatility and increased production costs and time.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution: Welded positioning fixtures are used for harmonic deceleration indexing plates to improve the above-mentioned problems.

[0007] The application is as follows: Includes: a worktable with a mounting shell fixedly connected to the bottom; a rotating mechanism is provided inside the mounting shell; an arc-shaped shell is provided on the upper side of the worktable; and a positioning mechanism that cooperates with the rotating mechanism is provided inside the arc-shaped shell.

[0008] As a preferred embodiment of the welding positioning fixture for the harmonic deceleration indexing plate provided by this utility model, the rotating mechanism includes a first worm gear rotatably fitted on one side of the inner wall of the mounting housing, a rotating shaft rotatably fitted on the lower side of the inner wall of the mounting housing, a worm wheel installed at the lower end of the rotating shaft, a motor installed on one side of the mounting housing, and a rotating table fixedly connected to the upper end of the rotating shaft.

[0009] As a preferred embodiment of the welding positioning fixture for the harmonic deceleration indexing plate provided by this utility model, the output end of the motor is fixedly connected to one end of the first worm, the first worm meshes with the worm wheel, and the upper end of the rotating shaft extends to the upper side of the worktable.

[0010] As a preferred embodiment of the welding positioning fixture for the harmonic deceleration indexing plate provided by this utility model, the positioning mechanism includes an annular plate rotatably fitted on the inner wall of an arc-shaped shell, the annular plate having multiple arc-shaped extrusion grooves, multiple slotted slide rods slidably fitted on the annular plate, guide rods installed on the inner wall of the slotted slide rods, multiple slide grooves opened on the outer wall of the arc-shaped shell, a worm gear tooth provided on one side of the annular plate, a second worm rotatably fitted on the inner wall of the arc-shaped shell, and a drive wheel installed on the second worm.

[0011] As a preferred embodiment of the welding positioning fixture for the harmonic deceleration indexing plate provided by this utility model, the guide rod is slidably fitted on the inner wall of the arc-shaped extrusion groove, the slotted slide rod is slidably fitted on the inner wall of the slide groove, the second worm gear meshes with the worm wheel teeth, and an extrusion head is fixedly connected to one end of each of the multiple slotted slide rods.

[0012] As a preferred embodiment of the welding positioning fixture for the harmonic deceleration indexing plate provided by this utility model, an annular groove is provided on the upper side of the worktable, and two arc-shaped sliders are slidably fitted on the inner wall of the annular groove. The two arc-shaped sliders are fixedly connected to the lower side of the rotary table.

[0013] As a preferred embodiment of the welding positioning fixture for the harmonic deceleration indexing plate provided by this utility model, two trapezoidal connecting blocks are fixedly connected to the lower side of the worktable, a positioning plate is fixedly connected to the lower side of the trapezoidal connecting blocks, and multiple positioning holes are opened on the upper side of the positioning plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a welding positioning fixture for a harmonic reducer indexing plate, comprising: a worktable with a mounting shell fixedly connected to its bottom; a rotating mechanism is provided inside the mounting shell; an arc-shaped shell is provided on the upper side of the worktable; and a positioning mechanism that cooperates with the rotating mechanism is provided inside the arc-shaped shell. By setting up the positioning mechanism, when the annular plate rotates, the arc-shaped extrusion groove, in conjunction with the guide rod, pushes the slotted slide rod, causing the extrusion head to clamp the harmonic reducer indexing plate. Compared with existing simple fixtures or single-reference-plane positioning methods, this greatly improves positioning accuracy, effectively reduces positional deviations caused by displacement during welding, facilitates welding, improves the versatility of the fixture and welding efficiency, and reduces production costs and time. Attached Figure Description

[0015] Figure 1 This application provides an overall three-dimensional structural schematic diagram; Figure 2 A schematic diagram of the rotating mechanism provided in this application; Figure 3 A schematic diagram of the structure for mounting the rotary table provided in this application; Figure 4 This is a schematic diagram of the structure of the annular plate provided in this application; Figure 5 This is a structural schematic diagram of the arc-shaped shell cross-section provided in this application; Figure 6 A schematic diagram of the positioning mechanism provided in this application.

[0016] The image shows: 1. Workbench; 2. Mounting shell; 3. Rotating mechanism; 31. First worm gear; 32. Rotating shaft; 33. Worm wheel; 34. Motor; 35. Rotary table; 4. Arc-shaped shell; 5. Positioning mechanism; 51. Annular plate; 52. Arc-shaped extrusion groove; 53. Slotted slide bar; 54. Guide rod; 55. Slide groove; 56. Worm wheel tooth; 57. Second worm gear; 58. Drive wheel; 6. Extrusion head; 7. Annular groove; 8. Arc-shaped slider; 9. Trapezoidal connecting block; 10. Positioning plate; 11. Positioning hole. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0018] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0019] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0023] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] Please refer to Figure 1-6 The welding positioning fixture for the harmonic deceleration indexing plate includes: a worktable 1 with a mounting shell 2 fixedly connected to its bottom; a rotating mechanism 3 is installed inside the mounting shell 2; an arc-shaped shell 4 is installed on the upper side of the worktable 1; and a positioning mechanism 5 that cooperates with the rotating mechanism 3 is installed inside the arc-shaped shell 4. Two trapezoidal connecting blocks 9 are fixedly connected to the lower side of the worktable 1, and a positioning plate 10 is fixedly connected to the lower side of the trapezoidal connecting blocks 9. Multiple positioning holes 11 are opened on the upper side of the positioning plate 10. During the welding process, the positioning plate 10 at the bottom of the worktable 1 can be connected to an external fixing device through the positioning holes 11 to enhance the overall stability of the fixture; at the same time, the arc-shaped slider 8 on the lower side of the rotating table 35 slides in the annular groove 7 on the upper side of the worktable 1, which not only ensures the smooth rotation of the rotating table 35, but also limits the shaking of the rotating table 35 to a certain extent, further ensuring the stability of the position of the harmonic deceleration indexing plate during welding.

[0026] Please refer to Figure 2 and Figure 3 The rotating mechanism 3 includes a first worm gear 31 rotatably engaged with one side of the inner wall of the mounting housing 2, a rotating shaft 32 rotatably engaged with the lower side of the inner wall of the mounting housing 2, a worm wheel 33 mounted at the lower end of the rotating shaft 32, a motor 34 mounted on one side of the mounting housing 2, and a rotating table 35 fixedly connected to the upper end of the rotating shaft 32. The output end of the motor 34 is fixedly connected to one end of the first worm gear 31, and the first worm gear 31 meshes with the worm wheel 33. The upper end of the rotating shaft 32 extends to the upper side of the worktable 1. An annular groove 7 is formed on the upper side of the worktable 1, and two arc-shaped sliders 8 are slidably engaged with the inner wall of the annular groove 7. The two arc-shaped sliders 8 are fixedly connected to the lower side of the rotating table 35. After positioning is completed, motor 34 is started. The output end of motor 34 drives the first worm 31 to rotate. Since the first worm 31 meshes with the worm wheel 33, it drives the worm wheel 33 to rotate. The worm wheel 33 drives the rotating shaft 32 to rotate, so that the rotary table 35 rotates on the upper side of the worktable 1. Through the rotation of the rotary table 35, the positioned harmonic reduction indexing plate can be rotated, thereby adjusting the different positions of the indexing plate to a position that is convenient for welding, making it convenient for operators to weld different positions of the indexing plate.

[0027] Please refer to Figures 4-6 The positioning mechanism 5 includes an annular plate 51 rotatably fitted on the inner wall of the arc-shaped shell 4. Multiple arc-shaped extrusion grooves 52 are formed on the annular plate 51. Multiple slotted slide rods 53 are slidably fitted on the annular plate 51. Guide rods 54 are installed on the inner walls of the slotted slide rods 53. Multiple sliding grooves 55 are formed on the outer walls of the arc-shaped shell 4. A worm gear tooth 56 is provided on one side of the annular plate 51. A second worm 57 is rotatably fitted on the inner wall of the arc-shaped shell 4. A drive wheel 58 is mounted on the second worm 57. The guide rods 54 are slidably fitted on the inner walls of the arc-shaped extrusion grooves 52, and the slotted slide rods 53 are slidably fitted on the inner walls of the sliding grooves 55. The second worm 57 meshes with the worm gear tooth 56. An extrusion head 6 is fixedly connected to one end of each of the multiple slotted slide rods 53. When using the welding positioning fixture for the harmonic deceleration indexing plate, the harmonic deceleration indexing plate is first placed on the rotary table 35. The positioning mechanism 5 completes the positioning of the indexing plate. The drive wheel 58 is rotated, which drives the second worm 57 to rotate. Because the second worm 57 meshes with the worm gear 56, the annular plate 51 rotates on the inner wall of the arc-shaped shell 4. As the annular plate 51 rotates, the arc-shaped extrusion groove 52 on its inner wall moves relative to the guide rod 54. Since the guide rod 54 slides on the inner wall of the arc-shaped extrusion groove 52, and the slotted slide rod 53 slides on the inner wall of the groove 55, under the extrusion action of the arc-shaped extrusion groove 52, multiple slotted slide rods 53 will slide along the groove 55 towards the center, driving the extrusion head 6 to move towards the harmonic deceleration indexing plate until the extrusion head 6 clamps and fixes the harmonic deceleration indexing plate, achieving precise positioning.

[0028] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the invention, are covered within the scope of the claims of the present utility model.

Claims

1. A welding positioning fixture for a harmonic deceleration indexing plate, characterized in that, include: A workbench (1) with a mounting shell (2) fixedly connected to the bottom; The mounting shell (2) is equipped with a rotating mechanism (3), and the upper side of the worktable (1) is equipped with an arc-shaped shell (4). The arc-shaped shell (4) is equipped with a positioning mechanism (5) that cooperates with the rotating mechanism (3). The positioning mechanism (5) includes an annular plate (51) that rotates and cooperates with the inner wall of the arc-shaped shell (4). Multiple arc-shaped extrusion grooves (52) are opened on the annular plate (51). Multiple slotted slide rods (53) are slidably cooperated on the annular plate (51). A guide rod (54) is installed on the inner wall of the slotted slide rod (53). The guide rod (54) is slidably cooperated with the inner wall of the arc-shaped extrusion groove (52). The slotted slide rod (53) is slidably cooperated with the inner wall of the slide groove (55). The second worm (57) meshes with the worm gear teeth (56). An extrusion head (6) is fixedly connected to the opposite end of each of the multiple slotted slide rods (53).

2. The welding positioning fixture for the harmonic deceleration indexing plate according to claim 1, characterized in that, The rotating mechanism (3) includes a first worm gear (31) rotatably engaged on one side of the inner wall of the mounting shell (2), a rotating shaft (32) rotatably engaged on the lower side of the inner wall of the mounting shell (2), a worm wheel (33) installed at the lower end of the rotating shaft (32), a motor (34) installed on one side of the mounting shell (2), and a rotating table (35) fixedly connected to the upper end of the rotating shaft (32).

3. The welding positioning fixture for the harmonic deceleration indexing plate according to claim 2, characterized in that, The output end of the motor (34) is fixedly connected to one end of the first worm (31), the first worm (31) meshes with the worm wheel (33), and the upper end of the rotating shaft (32) extends to the upper side of the worktable (1).

4. The welding positioning fixture for the harmonic deceleration indexing plate according to claim 1, characterized in that, The outer side wall of the arc-shaped shell (4) is provided with multiple sliding grooves (55), and a worm gear tooth (56) is provided on one side of the annular plate (51). The inner wall of the arc-shaped shell (4) is rotatably fitted with a second worm (57), and a drive wheel (58) is mounted on the second worm (57).

5. The welding positioning fixture for the harmonic deceleration indexing plate according to claim 2, characterized in that, The upper side of the worktable (1) is provided with an annular groove (7), and the inner wall of the annular groove (7) is slidably fitted with two arc-shaped sliders (8), which are fixedly connected to the lower side of the rotary table (35).

6. The welding positioning fixture for the harmonic deceleration indexing plate according to claim 1, characterized in that, Two trapezoidal connecting blocks (9) are fixedly connected to the lower side of the workbench (1). A positioning plate (10) is fixedly connected to the lower side of the trapezoidal connecting block (9). Multiple positioning holes (11) are opened on the upper side of the positioning plate (10).

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