Positioning mechanism

Abstract

The utility model provides a positioning mechanism, which relates to the field of welding, and comprises a base, a vertical plate is fixedly connected on the side wall of the base, a rotating seat is arranged on the base, a plurality of cylindrical dies are arranged on the rotating seat, cross-shaped die grooves are arranged on the cylindrical dies, the cylindrical dies are annularly arranged at equal intervals, and the cross-shaped die grooves are communicated with the vertical plate. A conveying channel is arranged on the side wall of one end of the base, and a welding assembly is fixedly connected to the base. The pressing cap is pressed downwards to abut against a rod head at the upper end of a workpiece, the micro air pump works to change the internal air pressure of the two built-in cylinder cavities, the two built-in arc-shaped pieces are driven to abut against the end position of the workpiece, locking of the workpiece can be completed preliminarily, and follow-up angle rotation adjustment is facilitated; through ingenious combination of the rack, the gear ring and other parts, automatic rotation of a workpiece driven by the pressing cap is achieved, and by combining real-time proofreading of the visual sensor, multiple claws at the lower end of the workpiece and a cross-shaped die groove in a corresponding cylinder die can be accurately and automatically corrected.

Description

Technical Field

[0001] This utility model relates to the field of welding, and in particular to a positioning mechanism. Background Technology

[0002] In modern manufacturing, the requirements for processing precision and efficiency of various complex-shaped workpieces are becoming increasingly stringent. This is especially true for components with special structures, such as multi-claw clamping workpieces, where the processing quality directly impacts the performance and reliability of the entire product.

[0003] Traditional methods for positioning and forming multi-jaw workpieces have several drawbacks. In the initial placement and fixing stages, rough positioning largely relies on manual operation. This involves rotating the multi-jaw claws to align them with the tightening slots in the mold, and then using auxiliary tools to tap the workpiece into these slots. For multi-jaw workpieces, their complex shape makes accurately finding the matching position with the mold even more difficult, requiring operators with high skill levels and extensive experience. This method is not only labor-intensive and time-consuming, but the alignment process is also tedious and inefficient. Furthermore, the accuracy of manual alignment is limited, failing to meet the requirements of modern high-precision machining, and prone to inaccurate alignment, which in turn affects the smooth progress of subsequent processing, reducing production efficiency and product qualification rates.

[0004] Furthermore, as the manufacturing industry moves towards automation and intelligence, traditional positioning methods cannot be effectively integrated with modern automated production equipment, limiting the degree of automation in the entire production process and hindering enterprises from improving production efficiency, reducing production costs, and enhancing the stability and consistency of product quality.

[0005] Therefore, it is necessary to provide a new positioning mechanism to solve the above-mentioned technical problems. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a positioning mechanism.

[0007] The positioning mechanism provided by this utility model includes: a base, a vertical plate fixedly connected to the side wall of the base, a rotating seat provided on the base, a plurality of cylindrical molds provided on the rotating seat, each of the plurality of cylindrical molds having a cross mold groove, the plurality of cylindrical molds being arranged in an equidistant ring, a conveying channel provided on one end side wall of the base, a welding assembly fixedly connected to the base, and an extraction assembly fixedly connected to the base; an automatic positioning assembly, the automatic positioning assembly including a pre-positioned bucket, the pre-positioned bucket being fixedly installed on the vertical plate, a pressure cap provided above the pre-positioned bucket, a main electric cylinder being installed and connected to the top of the vertical plate, the pressure cap being rotatably connected to the telescopic end of the main electric cylinder, a gear ring fixedly connected to the top cap wall of the pressure cap, a gear rack provided on one side of the gear ring, the gear rack meshing with the gear ring.

[0008] Preferably, a bending frame is fixedly connected to the telescopic end of the main electric cylinder, and an auxiliary electric cylinder is installed on the bending frame. The telescopic end of the auxiliary electric cylinder is fixedly connected to the rack.

[0009] Preferably, a limiting rail is fixedly connected to the bending frame, and an I-beam protrusion is provided on the rear side wall of the rack, the I-beam protrusion being slidably connected to the limiting rail.

[0010] Preferably, the side wall of the pre-placed bucket is provided with a through inclined groove.

[0011] Preferably, a vision sensor is provided at the lower end of the bending frame.

[0012] Preferably, the pressure cap has two symmetrically arranged built-in arc-shaped pieces inside, and two symmetrically arranged built-in cylindrical cavities at both ends of the pressure cap. A push rod is slidably connected to one end of the cavity wall of each of the two built-in cylindrical cavities. One end of each push rod is fixedly connected to the two built-in arc-shaped pieces, and a piston is fixedly connected to the other end of each push rod. A spring is sleeved and connected to each of the two push rods.

[0013] Preferably, the pressure cap has an arc-shaped cavity inside, and the two ends of the arc-shaped cavity are respectively connected to two built-in cylindrical cavities. A miniature air pump is installed and connected to the outside of the pressure cap. A three-way pipe is installed and connected to the air outlet of the miniature air pump. One end of the three-way pipe is connected to the middle of the arc-shaped cavity, and a solenoid valve is installed and connected to the other end of the three-way pipe.

[0014] Compared with related technologies, the positioning mechanism provided by this utility model has the following beneficial effects:

[0015] 1. This utility model uses the telescopic end of the main electric cylinder to drive the pressure cap to press down against the rod head at the upper end of the workpiece. The micro air pump works to deliver gas through the arc-shaped cavity to the inside of the two built-in cylinder cavities. The change in air pressure drives the two pistons to slide along the two rods, which in turn drive the two built-in arc-shaped plates to press against the end position of the workpiece. This achieves the initial locking of the workpiece, which facilitates subsequent angle rotation adjustment. This makes subsequent angle adjustment and precise positioning more convenient, and significantly improves production quality and efficiency.

[0016] 2. This utility model, through the ingenious combination of components such as the auxiliary electric cylinder, rack, and gear ring, achieves automated rotation of the workpiece driven by the pressure cap. Combined with real-time calibration by a vision sensor, it can accurately align the multi-claw at the lower end of the workpiece with the corresponding cross-shaped mold groove on the cylindrical mold, greatly improving the accuracy and speed of alignment. Subsequently, the main electric cylinder moves down again to tighten the multi-claw of the workpiece, further ensuring the stability and fit of the workpiece in the mold, creating ideal conditions for subsequent welding processing. This automated operation process reduces manual intervention, eliminating the need for manual calibration or initial hammering of the workpiece into the mold, improving the consistency and stability of the production process, making the entire processing more efficient and reliable, and helping enterprises achieve automated production transformation, improving production efficiency and product quality stability. Attached Figure Description

[0017] Figure 1 A schematic diagram of a preferred embodiment of this utility model;

[0018] Figure 2 for Figure 1 The diagram shows the structure at point A.

[0019] Figure 3 for Figure 2 The diagram shows the structure of the pressure cap;

[0020] Figure 4 for Figure 3 The diagram shows the structure of the built-in cylindrical cavity.

[0021] The following components are labeled in the diagram: 1. Base; 11. Vertical plate; 2. Rotary seat; 21. Cylindrical mold; 3. Conveyor; 4. Welding assembly; 41. Extraction assembly; 5. Pre-set bucket; 51. Pressure cap; 52. Main electric cylinder; 53. Gear ring; 54. Rack; 6. Bending frame; 61. Auxiliary electric cylinder; 62. Limiting rail; 7. Vision sensor; 8. Built-in arc plate; 81. Built-in cylindrical cavity; 82. Push rod; 83. Piston; 84. Spring; 9. Miniature air pump; 91. T-pipe; 92. Solenoid valve. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please refer to the following: Figures 1 to 4A positioning mechanism includes: a base 1, a vertical plate 11 fixedly connected to the side wall of the base 1, a rotating seat 2 on the base 1, a plurality of cylindrical molds 21 on the rotating seat 2, each of the plurality of cylindrical molds 21 having a cross mold groove, the plurality of cylindrical molds 21 being arranged in an equidistant ring, a conveying channel 3 on one end side wall of the base 1, a welding assembly 4 fixedly connected to the base 1, and an extraction assembly 41 fixedly connected to the base 1; an automatic positioning assembly, the automatic positioning assembly including a pre-positioned bucket 5, the pre-positioned bucket 5 fixedly installed on the vertical plate 11, a pressure cap 51 at the upper position of the pre-positioned bucket 5, a main electric cylinder 52 installed and connected at the top of the vertical plate 11, the pressure cap 51 being rotatably connected to the telescopic end of the main electric cylinder 52, a gear ring 53 fixedly connected to the top cap wall of the pressure cap 51, a rack 54 on one side of the gear ring 53, the rack 54 meshing with the gear ring 53.

[0024] In the specific implementation process, such as Figure 1 and Figure 2 As shown, a bending frame 6 is fixedly connected to the telescopic end of the main electric cylinder 52, and an auxiliary electric cylinder 61 is installed on the bending frame 6. The telescopic end of the auxiliary electric cylinder 61 is fixedly connected to the rack 54.

[0025] It should be noted that: the output end of the auxiliary electric cylinder 61 drives the rack 54 to move, which drives the gear ring 53 to rotate the pressure cap 51 relative to each other. The rotation of the pressure cap 51 drives the multi-claw at the lower end of the workpiece to rotate accordingly, so that the multi-claw at the lower end of the workpiece rotates to the cross mold groove on the corresponding cylindrical mold 21, automatically completing the alignment between the workpiece and the mold.

[0026] refer to Figure 2 As shown, a limiting rail 62 is fixedly connected to the bending frame 6, and an I-beam protrusion is provided on the rear side wall of the rack 54. The I-beam protrusion is slidably connected to the limiting rail 62.

[0027] It should be noted that setting the limit rail 62 can ensure that the movement of the rack 54 is sufficiently stable.

[0028] refer to Figure 1 and Figure 2 As shown, a through inclined groove is provided on the side wall of the pre-positioned bucket 5.

[0029] It should be noted that the through groove provided on the side wall of the pre-set bucket 5 can ensure that after the multi-claw workpiece is pressed into the cylindrical mold 21, the rod at the top of the workpiece can be rotated out through the through groove.

[0030] refer to Figure 2 As shown, a vision sensor 7 is provided at the lower end of the bending frame 6.

[0031] It should be noted that the vision sensor 7 can be used in conjunction with observation for calibration, so that the multi-claw at the lower end of the workpiece can be accurately rotated to the cross groove on the corresponding cylindrical mold 21.

[0032] refer to Figure 3 and Figure 4 As shown, the pressure cap 51 has two built-in arc-shaped pieces 8 symmetrically arranged inside, and two built-in cylindrical cavities 81 symmetrically arranged at both ends of the pressure cap 51. A push rod 82 is slidably connected to one end of the cavity wall of the two built-in cylindrical cavities 81. One end of the two push rods 82 is fixedly connected to the two built-in arc-shaped pieces 8 respectively, and the other end of the two push rods 82 is fixedly connected to a piston 83. A spring 84 is sleeved and connected to each of the two push rods 82.

[0033] It should be noted that the air pressure change inside the two built-in cylindrical cavities 81 drives the two pistons 83 to slide along the two push rods 82, which in turn causes the two built-in arc-shaped plates 8 to press against the end of the workpiece, thus achieving the initial locking of the workpiece.

[0034] refer to Figure 2 and Figure 3 As shown, the pressure cap 51 has an arc-shaped cavity inside, and the two ends of the arc-shaped cavity are respectively connected to two built-in cylindrical cavities 81. A miniature air pump 9 is installed and connected to the outside of the pressure cap 51. A three-way pipe 91 is installed and connected to the air outlet of the miniature air pump 9. One end of the three-way pipe 91 is connected to the middle of the arc-shaped cavity, and a solenoid valve 92 is installed and connected to the other end of the three-way pipe 91.

[0035] It should be noted that controlling the operation of the micro air pump 9 to deliver gas through the arc-shaped cavity to the interior of the two built-in cylindrical cavities 81 can change the air pressure in the two built-in cylindrical cavities 81.

[0036] By controlling the opening of the solenoid valve 92, the gas in the two built-in cylindrical cavities 81 can be directly discharged when the two springs 84 are reset, thus completing the separation and reset of the two built-in arc-shaped plates 8.

[0037] The working principle of the positioning mechanism provided by this utility model is as follows: The operator simply places the multi-claw-shaped workpiece inside the pre-set bucket 5, and uses an external controller (existing technology) to control the extension end of the main electric cylinder 52 to move, driving the pressure cap 51 to press down so that it abuts against the rod head position at the upper end of the workpiece. The micro air pump 9 is controlled to work so that the gas is delivered through the arc-shaped cavity to the interior of the two built-in cylindrical cavities 81. The change in air pressure drives the two pistons 83 to drive the two abutment rods 82 to slide, driving the two built-in arc-shaped plates 8 to press against the end position of the workpiece, thus initially completing the locking of the workpiece, so as to facilitate subsequent angle rotation adjustment.

[0038] The output end of the auxiliary electric cylinder 61 drives the rack 54 to move, which in turn drives the gear ring 53 to rotate the pressure cap 51. The rotation of the pressure cap 51 causes the multi-claw at the lower end of the workpiece to rotate accordingly. The vision sensor 7 is used to observe and calibrate the multi-claw at the lower end of the workpiece so that it rotates to the cross groove on the corresponding cylindrical mold 21, automatically completing the alignment between the workpiece and the mold. Subsequently, the extension end of the main electric cylinder 52 is controlled to move down again until the workpiece is pressed into the mold, thereby tightening the multi-claw of the workpiece to facilitate subsequent welding processing.

[0039] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A positioning mechanism, characterized in that, include: A base (1) is provided with a vertical plate (11) fixedly connected to the side wall of the base (1). A rotating seat (2) is provided on the base (1). Multiple cylindrical molds (21) are provided on the rotating seat (2). Each of the multiple cylindrical molds (21) is provided with a cross mold groove. The multiple cylindrical molds (21) are arranged in an equidistant ring. A conveying channel (3) is provided on one end side wall of the base (1). A welding assembly (4) is fixedly connected to the base (1). An extraction assembly (41) is fixedly connected to the base (1). An automatic positioning component includes a pre-positioned bucket (5), which is fixedly installed on a vertical plate (11). A pressure cap (51) is provided above the pre-positioned bucket (5). A main electric cylinder (52) is installed and connected at the top of the vertical plate (11). The pressure cap (51) is rotatably connected to the telescopic end of the main electric cylinder (52). A gear ring (53) is fixedly connected to the top cap wall of the pressure cap (51). A rack (54) is provided on one side of the gear ring (53). The rack (54) meshes with the gear ring (53).

2. The positioning mechanism according to claim 1, characterized in that, A bending frame (6) is fixedly connected to the telescopic end of the main electric cylinder (52), and an auxiliary electric cylinder (61) is installed on the bending frame (6). The telescopic end of the auxiliary electric cylinder (61) is fixedly connected to the rack (54).

3. A positioning mechanism according to claim 2, characterized in that, The bending frame (6) is fixedly connected to a limiting rail (62), and the rear side wall of the rack (54) is provided with an I-shaped protrusion, which is slidably connected to the limiting rail (62).

4. A positioning mechanism according to claim 1, characterized in that, The pre-positioned bucket (5) has a through groove on its side wall.

5. A positioning mechanism according to claim 2, characterized in that, A vision sensor (7) is provided at the lower end of the bending frame (6).

6. A positioning mechanism according to claim 1, characterized in that, The pressure cap (51) has two built-in arc-shaped pieces (8) symmetrically arranged inside. The pressure cap (51) has two built-in cylindrical cavities (81) symmetrically arranged at both ends. A push rod (82) is slidably connected to one end of the cavity wall of the two built-in cylindrical cavities (81). One end of the two push rods (82) is fixedly connected to the two built-in arc-shaped pieces (8) respectively. A piston (83) is fixedly connected to the other end of the two push rods (82). A spring (84) is sleeved on the two push rods (82).

7. A positioning mechanism according to claim 6, characterized in that, The pressure cap (51) has an arc-shaped cavity inside, and the two ends of the arc-shaped cavity are respectively connected to two built-in cylindrical cavities (81). A micro air pump (9) is installed and connected to the outside of the pressure cap (51). A three-way pipe (91) is installed and connected to the air outlet of the micro air pump (9). One end of the three-way pipe (91) is connected to the middle of the arc-shaped cavity, and a solenoid valve (92) is installed and connected to the other end of the three-way pipe (91).

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