Locking structure for welding equipment

Abstract

The utility model discloses a locking structure for welding equipment, which relates to the technical field of locking structures and comprises a driving wheel coaxially arranged on a cylindrical convex part and at least two groups of driven wheels rotationally arranged on the welding equipment, the driven wheels are in meshing transmission with the driving wheel, and the locking structure further comprises fasteners acting on the driven wheels. The fastening piece is provided with a threaded section and an abutting section, so that when the fastening piece is coaxially inserted into the driven wheel and the threaded section is in threaded connection with welding equipment, the abutting section and the driven wheel are in an abutting state, and the fastening piece and the driven wheel form a rotatable whole. According to the utility model, the at least two groups of driven wheels and the fasteners matched with the driven wheels are arranged, and the plurality of rotating bodies are divided into two rotating directions, so that when the main shaft performs a corresponding rotating action trend, the rotating bodies in the corresponding rotating directions perform a screwing action trend, and the rotating action trend realizes a reliable locking effect on the main shaft.

Description

TECHNICAL FIELD

[0001] The utility model relates to a locking structure technical field, concretely relates to a locking structure for welding equipment. BACKGROUND

[0002] The existing welding equipment will adjust the angle of the stirring needle according to the material of the base material and the welding thickness and other parameters before welding, and the stirring needle is attached to the main shaft of the welding equipment, so the angle adjustment of the stirring needle is generally realized by adjusting the inclination angle of the main shaft.

[0003] In the prior art, two cylindrical protrusions are arranged coaxially on the outside of the main shaft, and the structure diagram of the main shaft can be represented by Figure 1 , and the structure diagram of the main shaft on the welding equipment can be represented by Figure 2 , wherein 101 is the main shaft, 102 is the cylindrical protrusion, 103 is the expansion sleeve, and 104 is the welding equipment. Before the main shaft is installed on the welding equipment, an expansion sleeve is sleeved on each of the two cylindrical protrusions, and then the two expansion sleeves are inserted into the corresponding holes of the welding equipment, and then a plurality of bolts arranged in a circumferential array are installed on the expansion sleeve to realize the installation of the two cylindrical protrusions on the welding equipment, that is, the rotational installation of the main shaft on the welding equipment. When the inclination angle of the main shaft needs to be adjusted, the locking effect of the bolts on the expansion sleeve is released, and then the cylindrical protrusions are rotated on the welding equipment until the main shaft rotates to the corresponding angle, and the bolts are installed on the expansion sleeve again to complete the position locking of the main shaft at the angle.

[0004] However, the main shaft in the prior art relies on the expansion sleeve to realize the locking after the angle adjustment of the main shaft, and the use of the expansion sleeve requires a plurality of fastening bolts. Generally, the plurality of fastening bolts are arranged in the same direction, and during the subsequent operation of the main shaft, the fastening bolts may be loose, causing the main shaft to loosen.

[0005] Therefore, we propose a locking structure for welding equipment to solve the above problems. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at: in order to solve the problem in the prior art, and propose a locking structure for welding equipment, which relies on at least two groups of rotationally opposite rotating whole and driving wheel meshing, not only can realize the convenient locking of the main shaft, but also can play the function of anti-loose.

[0007] To solve the above problems, the utility model provides the following technical scheme:

[0008] The utility model provides a locking structure for welding equipment, which comprises a driving wheel coaxially arranged on a cylindrical protrusion and at least two groups of driven wheels rotatably arranged on the welding equipment, the driven wheels are in meshing transmission with the driving wheel, the locking structure further comprises a fastener acting on the driven wheel, the fastener has a threaded segment and a pressing segment, when the fastener is coaxially inserted into the driven wheel and the threaded segment is threadedly connected with the welding equipment, the pressing segment is in a pressing state with the driven wheel, and the fastener and the driven wheel form a rotatable whole, a plurality of fasteners matched with the at least two groups of driven wheels have two rotation directions, so that at least one rotatable whole has a rotation direction opposite to that of the other rotatable whole.

[0009] As a further scheme of the utility model: the driving wheel and the driven wheel are both externally provided with tooth portions for mutual meshing.

[0010] As a further scheme of the utility model: the tooth portions are densely arranged on the corresponding driving wheel and driven wheel, so that the driving wheel and the driven wheel are both gear structures.

[0011] As a further scheme of the utility model: the fastener is a fastening bolt, the head of the fastening bolt constitutes the pressing segment, and the rod of the fastening bolt constitutes the threaded segment.

[0012] As a further scheme of the utility model: a surrounding barrier is coaxially arranged on the driven wheel, so that the pressing segment on the fastener can be accommodated in the surrounding barrier when the fastener is coaxially inserted into the driven wheel.

[0013] As a further scheme of the utility model: the surrounding barrier is externally provided in a square structure or a hexagonal structure.

[0014] As a further scheme of the utility model: a gasket is arranged between the pressing segment and the driven wheel, and the gasket is sleeved on the outside of the fastener.

[0015] As a further scheme of the utility model: the driven wheel is arranged in two groups, and the driving wheel and the two groups of driven wheels are arranged in a triangular layout.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. By setting at least two sets of driven wheels and matching fasteners, the fasteners and driven wheels together form a rotating whole mounted on the welding equipment. At the same time, due to the meshing of the driven wheels and the driving wheels, and the arrangement of two rotation directions among the multiple fasteners, the multiple rotating wholes are divided into two rotation directions. During the welding process, when the spindle is subjected to external force / resistance and has a corresponding oscillation tendency after being subjected to force, the rotating whole in the corresponding rotation direction tends to tighten accordingly. This rotational tendency achieves a reliable locking effect on the spindle. Locking can be achieved by setting at least two sets of driven wheels. Compared with the locking method of the prior art that relies on a shrink sleeve equipped with multiple fastening bolts, the locking structure of this application is novel and simple to operate.

[0018] 2. The teeth on the outside of the driving wheel and the driven wheel enable them to mesh and transmit power stably, which improves the stability and reliability of the locking structure. Moreover, the meshing direction between the driving wheel and the driven wheel is perpendicular to the axial direction of the main shaft. Compared with the axial locking effect of the fastening bolt in the prior art, the locking effect perpendicular to the axial direction of the main shaft in this application can apply a stable locking effect to the main shaft, which improves the locking effect.

[0019] 3. The teeth are fully distributed on the driving and driven gears, forming a gear structure, which enhances the transmission efficiency and stability, improves the overall performance of the locking structure, and can directly use the gears in the existing technology when in use, and can be quickly replaced in case of subsequent damage;

[0020] 4. The fasteners are fastening bolts, whose heads and shanks respectively form a pressing section and a threaded section, which simplifies the structure, facilitates installation and disassembly, and improves work efficiency;

[0021] 5. The retaining wall coaxially mounted on the driven wheel can accommodate the pressing section on the fastener, avoiding interference from the pressing section to surrounding components and improving the compactness and practicality of the locking structure.

[0022] 6. The exterior of the enclosure is designed as a square or hexagonal structure, which makes it easy to rotate the enclosure with tools to adjust the tilt angle of the main shaft, thus improving the operability and convenience of the locking structure.

[0023] 7. The washer installed between the pressing section and the driven wheel can increase the friction and stability between the two, while protecting the driven wheel from wear of the pressing section and extending the service life of the locking structure;

[0024] 8. The driven wheels are set in two groups and arranged in a triangular shape with the driving wheel. This arrangement enhances the stability and load-bearing capacity of the locking structure and is suitable for welding equipment with larger loads. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] Figure 1 is the main shaft structure diagram of prior art;

[0027] Figure 2 is the main shaft structure diagram of prior art;

[0028] Figure 3 is the structure diagram of the utility model;

[0029] Figure 4 is the structure diagram of the utility model; Figure 3

[0030] Figure 5 is the structure diagram of the utility model;

[0031] Figure 6 is the structure diagram of the utility model; Figure 5

[0032] In the figure: 101, main shaft; 102, cylindrical convex part; 103, expansion sleeve; 104, welding equipment;

[0033] 1, driving wheel; 2, driven wheel; 3, fastener; 301, threaded section; 302, pressing section; 4, fence; 5, tooth part; 6, washer. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0035] As shown in Figure 3 , the main shaft 101 is assembled on the welding equipment 104 by means of the locking structure. Specifically, the locking structure comprises a driving wheel 1 coaxially arranged on the cylindrical convex part 102 and at least two groups of driven wheels 2 rotatably arranged on the welding equipment 104. The driven wheels 2 are arranged in meshing state with the driving wheel 1. In this document, the number of driven wheels 2 is set to two groups. Preferably, the layout of the driving wheel 1 and the two groups of driven wheels 2 is triangularly distributed. This layout state can be achieved by Figure 4 ​​To illustrate, in addition to the two sets of driven wheels 2, the locking structure also includes two fasteners 3, which act on the two sets of driven wheels 2 respectively. Specifically, each fastener 3 has a threaded section 301 and a pressing section 302. During assembly, the threaded section 301 of the fastener 3 is coaxially inserted into the driven wheel 2. This insertion state can be determined by... Figure 6 The process is as follows: the threaded section 301 continues to move to the right and is threaded onto the welding equipment 104 until the pressing section 302 and the driven wheel 2 are in a pressing state. Relying on this pressing action, a stable connection is achieved between the pressing section 302 and the driven wheel 2. (To improve the stable connection, this application can also provide a washer 6 between the pressing section 302 and the driven wheel 2, and the washer 6 is sleeved on the outside of the fastener 3, using the washer 6 to improve the connection between the two.) That is, at this time, the fastener 3 and the driven wheel 2 will form a whole. This whole is a rotatable whole because of the presence of the threaded section 301 on it. If the driving wheel 1 applies a rotational tendency to the driven wheel 2, it can be transmitted to the threaded section 301 on the rotating whole. At this time, the threaded section 301 will produce a corresponding tightening or loosening action tendency.

[0036] Based on the above design, this application reverses the rotation directions of the threaded segments 301 on the two fasteners 3, so that the rotation directions of the two rotating components are opposite. Therefore, when the main shaft 101 drives the driving wheel 1 to rotate, the rotation trend of the driving wheel 1 can be transmitted to the two rotating components. Since the rotation directions of the two rotating components are opposite, the threaded segment 301 on one rotating component will be in a tightening action trend. This tightening action trend can lock the driving wheel 1. In summary, under the working state of the corresponding rotational swing trend of the main shaft 101, the fasteners 3 with the corresponding rotation direction will adapt to generate a tightening action trend to prevent the driving wheel 1 from loosening. Specifically, during the welding process, the main shaft 101 (B-axis) has a swinging motion trend after being subjected to external force / resistance. However, the rotating components composed of the two driven wheels 2 and the corresponding fasteners 3 rotate clockwise and counterclockwise, respectively. Under this rotation mode, the fastener 3 on one driven wheel 2 will become tighter and tighter, thus preventing loosening and achieving mutual locking.

[0037] like Figure 6 As shown, in order to accommodate and protect the pressing section 302 of the fastener 3, this application provides a retaining wall 4 coaxially on the driven wheel 2 so that when the fastener 3 is coaxially inserted into the driven wheel 2, the pressing section 302 on the fastener 3 can be accommodated within the retaining wall 4. Meanwhile, in order to enable the driven wheel 2 to drive the driving wheel 1 to rotate before the fastener 3 is assembled, thereby driving the main shaft 101 to rotate and swing to the corresponding working angle, the outer surface of the retaining wall 4 is set to a square or hexagonal structure, etc. Taking a hexagonal structure as an example, a hexagonal wrench is then used to drive the hexagonal retaining wall 4 to rotate, achieving the corresponding working angle rotation of the driving wheel 1.

[0038] Regarding the fastener 3 mentioned above, the fastener 3 can be set as a conventional fastening bolt, with the head of the fastening bolt forming the aforementioned pressing section 302 and the shank of the fastening bolt forming the aforementioned threaded section 301.

[0039] like Figures 4-5 As shown, in order to achieve meshing transmission between the driving wheel 1 and the driven wheel 2, teeth 5 for meshing are provided on the outside of the driving wheel 1 and the two sets of driven wheels 2. The teeth 5 are arc-shaped and adapted to the arc shape of the outside of the driving wheel 1 and the driven wheel 2. Preferably, the teeth 5 are fully distributed on the corresponding driving wheel 1 and the two sets of driven wheels 2, so that the driving wheel 1 and the two sets of driven wheels 2 are all formed as gears, and thus conventional gears can be used.

[0040] It should be noted that the description and accompanying drawings in this application only show the case of setting two sets of driven wheels 2. In actual application, it is sufficient that the number of driven wheels 2 is at least two sets, and the multiple fasteners 3 that are adapted to them have two directions of rotation (left-hand and right-hand).

[0041] To ensure a secure locking effect on the spindle 101, this application preferably uses two sets of locking structures arranged opposite each other. When the spindle 101 tends to swing, both sets of locking structures will act on the spindle 101, resulting in a symmetrical and uniform locking effect. Furthermore, when the locking structure contains two driven wheels 2, the two sets of locking structures require four driven wheels 2, which in turn require four fasteners 3 for use.

[0042] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A locking structure for welding equipment, characterized in that, The locking structure comprises a driving wheel (1) coaxially arranged on a cylindrical protrusion (102) and at least two groups of driven wheels (2) rotatably arranged on a welding device (104), the driven wheels (2) are engaged with the driving wheel (1) for transmission, the locking structure further comprises a fastener (3) acting on the driven wheels (2), the fastener (3) has a threaded segment (301) and a pressing segment (302), when the fastener (3) is coaxially inserted into the driven wheel (2) and the threaded segment (301) is threadedly connected with the welding device (104), the pressing segment (302) is in a pressing state with the driven wheel (2), and the fastener (3) and the driven wheel (2) form a rotatable whole, and the plurality of fasteners (3) matched with the at least two groups of driven wheels (2) have two rotation directions, so as to ensure that at least one rotatable whole has a rotation direction opposite to that of the other rotatable whole.

2. The locking structure for a welding apparatus according to claim 1, wherein The driving wheel (1) and the driven wheel (2) are both externally provided with tooth portions (5) for mutual engagement.

3. The locking structure for a welding apparatus according to claim 2, wherein The tooth portions (5) are densely arranged on the corresponding driving wheel (1) and driven wheel (2), so that the driving wheel (1) and the driven wheel (2) are both gear structures.

4. The locking structure for a welding apparatus according to any one of claims 1 to 3, characterized in that, The fastener (3) is a fastening bolt, the head of the fastening bolt constitutes the pressing segment (302), and the shank of the fastening bolt constitutes the threaded segment (301).

5. A locking structure for a welding apparatus according to any one of claims 1 to 3, characterized in that, The driven wheel (2) is coaxially provided with an enclosure (4), so that the pressing segment (302) on the fastener (3) can be accommodated in the enclosure (4) when the fastener (3) is coaxially inserted into the driven wheel (2).

6. The locking structure for a welding apparatus according to claim 5, wherein The enclosure (4) is externally provided in a square structure or a hexagonal structure.

7. The locking structure for a welding apparatus according to any one of claims 1 to 3, characterized in that, A gasket (6) is arranged between the pressing segment (302) and the driven wheel (2), and the gasket (6) is sleeved on the outside of the fastener (3).

8. The locking structure for a welding apparatus according to any one of claims 1 to 3, characterized in that, The driven wheel (2) is provided in two groups, and the driving wheel (1) and the two groups of driven wheels (2) are arranged in a triangular layout.

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