Cover plate welding positioning tool

Abstract

The utility model relates to the technical field of part welding processing discloses a cover plate welding positioning tool, it includes support and support plate, support plate is fixedly connected with support, is equipped with a plurality of positioning holes on support plate, a plurality of positioning holes are along the first direction interval distribution, the plug -in part of each positioning hole is used for inserting the plug -in part of cover plate, the extension of cover plate and support plate abuts, the dead weight of cover plate is located in the direction of gravity. The plug -in part in the positioning hole is positioned, avoids the movement of cover plate in the horizontal plane, that is, the length direction and width direction of cover plate length direction and width direction positioning, the dead weight of cover plate is located in the direction of gravity, to avoid the cover plate in the vertical direction of the shift, thereby realized the welding positioning of cover plate. When cover plate carries the welding load, because in the length direction, width direction and vertical direction of cover plate all have been positioned, thereby avoided the welding load and made the cover plate displacement situation occur, and then improved the welding quality of cover plate.

Description

Technical Field

[0001] This utility model relates to the technical field of parts welding and processing, specifically to a cover plate welding positioning fixture. Background Technology

[0002] An air filter is a device that removes particulate impurities from the air. When reciprocating machinery (internal combustion engines, reciprocating compressors, etc.) is operating, if the intake air contains dust and other impurities, it will accelerate the wear of parts, so an air filter is essential. An air filter consists of two parts: a filter element and a housing. The filter element is located inside the housing, which includes an air filter cover and an outer shell, with the air filter cover placed on top of the outer shell. During the processing of the air filter cover, it is often placed on a welding platform, and then a welding robot performs the welding steps. However, during the welding process, the load applied to the air filter cover by the welding robot can easily cause changes in its posture, leading to a misalignment of the welding position and thus affecting the quality of the finished air filter cover. Utility Model Content

[0003] In view of this, the present invention provides a cover plate welding positioning fixture to solve the problem that during the welding process, the load applied to the air filter cover plate by the welding robot can easily cause its posture to change, resulting in the welding position to shift and thus affecting the finished quality of the air filter cover plate.

[0004] Firstly, this application provides a cover plate welding positioning fixture, comprising:

[0005] support;

[0006] A support plate is fixedly connected to the bracket and has a plurality of positioning holes. The plurality of positioning holes are spaced apart along a first direction. Each positioning hole is used to insert a plug portion of the cover plate. The extension portion of the cover plate abuts against the support plate.

[0007] The cover plate's own weight serves to limit its position in the direction of gravity.

[0008] Beneficial effects: The positioning holes limit the insertion parts within the cover plate, preventing horizontal movement. This means limiting the cover plate in both the length and width directions. The cover plate's own weight also limits it in the gravitational direction, preventing vertical movement and thus achieving proper welding positioning. When the cover plate bears a welding load, the limiting in the length, width, and vertical directions prevents displacement caused by the welding load, improving the accuracy of the welding position and consequently enhancing the welding quality.

[0009] In one alternative embodiment, the gap distance between the inner wall of each positioning hole and the insertion portion therein is less than or equal to a first set value.

[0010] Beneficial effects: This gap distance ensures that the insertion part of the cover plate can be smoothly inserted into the positioning hole, and reduces the movement distance of the insertion part in the positioning hole. Even if the cover plate is displaced in case of an accident, the displacement of the cover plate is within the range of this gap distance, so as to ensure that the movement distance of the cover plate is less than the set maximum offset, thereby ensuring that the welding quality of the cover plate meets the set requirements.

[0011] In one alternative embodiment, the height of the bottom surface of the plug portion is greater than the height of the bottom surface of the bracket.

[0012] Beneficial effect: It allows the cover plate to be suspended in the air, thereby ensuring that the cover plate can be limited in the vertical direction under its own weight.

[0013] In one alternative embodiment, a pressing assembly is further included, the pressing assembly including a pressing head that abuts against the cover plate and applies a pressing force to the cover plate.

[0014] Beneficial effect: The pressure head applies a holding force to the cover plate, preventing the cover plate from separating from the support plate, thereby further limiting the position of the cover plate.

[0015] In one alternative embodiment, the holding assembly further includes:

[0016] The base is fixedly connected to the support plate;

[0017] The first rod is hinged to the base;

[0018] The second rod is hinged to the base and detachably connected to the pressure head;

[0019] The third rod is hinged to the first rod and the second rod respectively;

[0020] The third rod has a pressing position that is collinear with the first rod and the pressure head abuts against the cover plate;

[0021] The third rod has a release position where it is not collinear with the first rod and the pressure head is separated from the cover plate;

[0022] The third rod is capable of rotating under external force to switch between the pressing position and the releasing position.

[0023] Beneficial effects: In the holding position, the third rod and the first rod are collinear, which is a dead point position, which can effectively maintain the holding force and prevent the pressure head from separating from the cover plate in case of accident.

[0024] In one optional embodiment, the pressing assembly further includes a sliding block, which is hinged to the first rod and the third rod respectively, and is slidably connected to the second rod. The second rod has a limiting portion, and the sliding block abuts against the limiting portion to limit the upward movement of the pressing head in the vertical direction.

[0025] Beneficial effects: The limiting part provides the operator with clear tactile feedback and visual positioning marks, ensuring that the third rod can accurately engage with the design point when rotated to the holding position, avoiding insufficient holding force due to over- or under-positioning. When the pressure head is in the holding position, the sliding block abuts against the limiting part of the second rod to prevent the pressure head from displacing upward due to external vibration, load impact, or internal forces of the mechanism.

[0026] In one alternative embodiment, the holding assembly further includes:

[0027] One end of the screw is fixedly connected to the pressure head, and the other end passes through the second rod body and extends out of the rod body;

[0028] The first nut is threadedly connected to the portion of the screw extending out of the rod body and abuts against the second rod body;

[0029] The second nut is disposed opposite to the first nut and on both sides of the second rod. The second nut is threadedly connected to the screw and abuts against the second rod.

[0030] Beneficial effects: By adjusting the length of the screw extending out of the second rod body, the height of the pressure head can be adjusted, thereby enabling the pressure holding assembly to press the cover plate at different height positions, thus improving the applicability of the pressure holding assembly.

[0031] In one alternative embodiment, a handle is also included, which is connected to the third rod, and the handle is provided with a plurality of protrusions.

[0032] Beneficial effects: The raised surfaces increase the friction of the handle, preventing slippage. The raised areas also act as tactile markers; when the handle is rotated to the gripping position, the raised areas come into contact with the operator's palm, producing a distinct tactile sensation. Attached Figure Description

[0033] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the structure of the cover plate welding positioning fixture and the cover plate fitting of this utility model;

[0035] Figure 2 This is a bottom view of the cover plate welding positioning fixture and the cover plate mating of this utility model;

[0036] Figure 3 This is a schematic diagram of the structure of the cover plate of this utility model;

[0037] Figure 4 This is a schematic diagram of the pressing component in the pressing position of the cover plate welding positioning fixture of this utility model;

[0038] Figure 5 This is a schematic diagram of the structure of the cover plate welding positioning fixture of this utility model in the relaxed position, showing the holding component.

[0039] Explanation of reference numerals in the attached figures:

[0040] 100. Bracket;

[0041] 200. Support plate; 201. Positioning hole;

[0042] 300. Cover plate; 301. Insertion part; 302. Extension part;

[0043] 401. Pressure head; 402. Seat; 403. First rod; 404. Second rod; 4041. Limiting part; 405. Third rod; 406. Sliding block; 4071. Screw; 4072. First nut; 4073. Second nut; 408. Handle; 4081. Protrusion; 409. Pad. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0045] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0047] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0048] The technical solutions in the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. The described embodiments are only possible technical implementations of this utility model, but are not limited thereto. Other embodiments obtained by those skilled in the art in conjunction with the embodiments of this utility model without creative effort are also within the protection scope of this utility model.

[0049] The cover plate welding positioning fixture provided in the embodiments of this application, such as Figures 1 to 5 As shown, it includes a bracket 100 and a support plate 200, wherein the support plate 200 is fixedly connected to the bracket 100, and a plurality of positioning holes 201 are provided on the support plate 200 and distributed at intervals along a first direction. The positioning holes 201 are used to insert the insertion part 301 of the cover plate 300, and the extension part 302 of the cover plate 300 abuts against the support plate 200. The weight of the cover plate 300 can limit its movement in the direction of gravity.

[0050] like Figure 1 and Figure 2 As shown, specifically, the bracket 100 serves to support the entire tooling and cover plate 300. The bracket 100 can be made of metal, specifically stainless steel, aluminum alloy, or other metal materials. Preferably, in this embodiment, the bracket 100 is made of stainless steel, which has high strength and stability, capable of withstanding the weight of the cover plate 300, the support plate, and the loads during the welding process. The shape of the bracket 100 can be designed according to actual needs. For example, it can be a frame structure, with the horizontal and vertical bars of the frame connected to form a stable support system; or it can be a columnar structure, with multiple columns distributed in suitable positions to support the support plate 200.

[0051] like Figure 2As shown, the support plate 200 has a plurality of positioning holes 201. The positioning holes 201 are rectangular in shape. In this embodiment, the shape of the positioning holes 201 is not limited. The shape of the positioning holes 201 can be adjusted according to the shape of the insertion part 301 of the cover plate 300 so that the insertion part 301 can be adapted to the positioning holes 201. The positioning holes 201 are distributed at intervals along a first direction. The first direction can be the width direction of the cover plate 300. Of course, the first direction can also be the length direction of the cover plate 300. The position of the positioning holes 201 on the cover plate 300 can be adjusted according to the size and shape of the cover plate 300 to increase the number of positioning holes 201 on the cover plate 300, thereby making full use of the space on the cover plate 300. The gap distance between the inner wall of each positioning hole 201 and its inner insertion part 301 is less than or equal to a first set value. The first set value ranges from 0.05 mm to 0.1 mm, preferably 0.1 mm. This gap distance is designed to ensure that the insertion part of the cover plate 300 can be smoothly inserted into the positioning hole 201, while also minimizing the movement distance of the insertion part within the positioning hole 201. If the gap distance is too large, the cover plate 300 will easily wobble within the positioning hole 201, affecting welding accuracy; if the gap distance is too small, the cover plate 300 will be difficult to insert into the positioning hole 201.

[0052] like Figure 3 As shown, the cover plate 300 is an air filter cover plate 300. The insertion part 301 of the cover plate 300 is inserted into the positioning hole 201. The positioning hole 201 limits the insertion part 301 to prevent the cover plate 300 from moving in the horizontal plane, that is, it limits the length and width of the cover plate 300. At the same time, the height of the bottom surface of the insertion part 301 is greater than the height of the bottom surface of the bracket 100, so that the cover plate 300 is in a suspended state. The weight of the cover plate 300 itself will make it tightly abut against the support plate 200, thereby limiting it in the direction of gravity and preventing the cover plate 300 from moving in the vertical direction.

[0053] The cover plate 300 welding positioning device in this embodiment, such as Figure 4 and Figure 5As shown, the assembly also includes a pressing component, which comprises a pressing head 401, a base 402, a first rod 403, a second rod 404, a third rod 405, a sliding block 406, a screw 4071, a first nut 4072, and a second nut 4073. The pressing component further limits the position of the cover plate 300, preventing it from separating from the support plate 200. The base 402 is fixedly connected to the support plate 200, and can be firmly bonded to it through welding, bolting, or other methods. Preferably, in this embodiment, a pad 409 is located between the base 402 and the support plate 200. By adding the pad 409, the height of the pressing head 401 is increased, ensuring that the height of the pressing head 401 meets the requirements for pressing the cover plate 300. Furthermore, the pad 409 increases the area on which the load is applied to the support plate 200, reducing the degree of local deformation of the support plate 200. The base 402 provides the mounting foundation for the entire pressing assembly. The first rod 403 is hinged to the base 402, allowing it to rotate around the hinge point. The first rod 403 can be made of solid metal, possessing sufficient strength and rigidity to prevent deformation during operation. The second rod 404 is hinged to the base 402 and detachably connected to the pressure head 401. The second rod 404 can also be made of metal, and its detachable connection to the pressure head 401 can be via threaded connection, slot connection, etc. This design facilitates the replacement of pressure heads 401 of different specifications to accommodate cover plates 300 of varying sizes and shapes. The third rod 405 is hinged to both the first rod 403 and the second rod 404. The third rod 405 has a pressing position where it is collinear with the first rod 403 and the pressure head 401 abuts against the cover plate 300, and a releasing position where it is not collinear with the first rod 403 and the pressure head 401 is separated from the cover plate 300. In the holding position, the third rod 405 and the first rod 403 are collinear, forming a dead point, which effectively maintains the holding force and prevents the pressure head 401 from separating from the cover plate 300 in case of an accident. The third rod 405 can be rotated by external force to switch between the holding and releasing positions. The operator can manually apply force to rotate the third rod 405, or it can be automated by electric or pneumatic drive. The sliding block 406 is hinged to the first rod 403 and the third rod 405 respectively, and slidably connected to the second rod 404. The sliding block 406 can be made of wear-resistant metal material and is block-shaped. The sliding block 406 has a first arc surface, and the second rod 404 has a second arc surface. During the sliding process, the first arc surface and the second arc surface are in contact, and the first arc surface moves along the extension direction of the second arc surface. The second rod 404 has a limiting part 4041. When the third rod 405 rotates to the pressing position, the sliding block 406 abuts against the limiting part 4041 to limit the movement of the pressing head 401 in the vertical direction upward.The limiting part 4041 provides the operator with clear tactile feedback and visual positioning marks, ensuring that the third rod 405 can accurately engage with the design point when rotated to the holding position, avoiding insufficient holding force due to over- or under-position.

[0054] like Figure 4 and Figure 5 As shown, in this embodiment, one end of the screw 4071 is fixedly connected to the pressure head 401, and the other end passes through the second rod body 404 and extends out of the rod body. The screw 4071 can be made of high-strength alloy steel to ensure that it will not break during adjustment. The first nut 4072 is threadedly connected to the portion of the screw 4071 extending out of the rod body and abuts against the second rod body 404; the second nut 4073 is opposite to the first nut 4072 and is located on both sides of the second rod body 404. The second nut 4073 is threadedly connected to the screw 4071 and abuts against the second rod body 404. By adjusting the length of the screw 4071 extending out of the second rod body 404, the height of the pressure head 401 can be adjusted, allowing the pressing assembly to press the cover plate 300 at different heights, thus improving the applicability of the pressing assembly. When it is necessary to press the higher cover plate 300, the first nut 4072 and the second nut 4073 can be loosened, the screw 4071 can be adjusted upward, and then the nut can be tightened to fix the height of the pressure head 401.

[0055] In this embodiment, as Figure 4 and Figure 5 As shown, it also includes a handle 408, which is connected to the third rod 405, and the handle 408 has several protrusions 4081. The handle 408 allows the operator to easily apply external force to the third rod 405, switching between the pressing and releasing positions. The protrusions 4081 increase the surface friction of the handle 408, preventing slippage when gripping it. The protrusions 4081 also form tactile positioning marks; when the handle 408 is rotated to the pressing position, the protrusions 4081 contact the operator's palm, producing a distinct tactile sensation.

[0056] The implementation principle of this embodiment is as follows: The welding positioning fixture for the cover plate 300 supports the support plate 200 via the bracket 100. The positioning hole 201 on the support plate 200 limits the insertion part 301 of the cover plate 300, restricting the horizontal movement of the cover plate 300. The weight of the cover plate 300 limits its vertical movement. Simultaneously, the pressing assembly applies a pressing force to the cover plate 300 via the pressing head 401, further limiting the cover plate 300. The height of the pressing head 401 can be adjusted by adjusting the length of the screw 4071 to accommodate cover plates 300 of different heights. The handle 408 is designed for easy operation, and the protrusion 4081 increases the safety and accuracy of operation. This fixture effectively solves the problem of easy displacement of the cover plate 300 during welding, improves the accuracy of the welding position and the welding quality of the cover plate 300, and has strong practicality and innovation. Compared with traditional welding positioning methods, it represents a significant improvement and enhancement.

[0057] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A cover plate welding positioning fixture, characterized in that, include: Bracket (100); A support plate (200) is fixedly connected to the bracket (100) and has a plurality of positioning holes (201) thereon. The plurality of positioning holes (201) are distributed at intervals along a first direction. Each positioning hole (201) is used to insert the insertion part (301) of the cover plate (300). The extension part (302) of the cover plate (300) abuts against the support plate (200). The self-weight of the cover plate (300) is used to limit its position in the direction of gravity.

2. The cover plate welding positioning fixture according to claim 1, characterized in that, The gap distance between the inner wall of each positioning hole (201) and the inner insertion part (301) is less than or equal to a first set value.

3. The cover plate welding positioning fixture according to claim 2, characterized in that, The height of the bottom surface of the plug (301) is greater than the height of the bottom surface of the bracket (100).

4. The cover plate welding positioning fixture according to any one of claims 1-3, characterized in that, It also includes a pressing assembly, which includes a pressing head (401) that abuts against the cover plate (300) and applies a pressing force to the cover plate (300).

5. The cover plate welding positioning fixture according to claim 4, characterized in that, The pressing component further includes: The base (402) is fixedly connected to the support plate (200); The first rod (403) is hinged to the base (402); The second rod (404) is hinged to the seat (402) and detachably connected to the pressure head (401); The third rod (405) is hinged to the first rod (403) and the second rod (404) respectively; The third rod (405) has a pressing position that is collinear with the first rod (403) and the pressure head (401) abuts against the cover plate (300); The third rod (405) has a release position that is not collinear with the first rod (403) and the pressure head (401) is separated from the cover plate (300); The third rod (405) is capable of rotating under external force to switch between the holding position and the releasing position.

6. The cover plate welding positioning fixture according to claim 5, characterized in that, The pressing assembly further includes a sliding block (406), which is hinged to the first rod (403) and the third rod (405) respectively, and the sliding block (406) is slidably connected to the second rod (404). The second rod (404) has a limiting part (4041), and the sliding block (406) abuts against the limiting part (4041) to limit the upward movement of the pressing head (401) in the vertical direction.

7. The cover plate welding positioning fixture according to claim 6, characterized in that, The pressing component further includes: The screw (4071) has one end fixedly connected to the pressure head (401), and the other end passes through the second rod body (404) and extends out of the rod body; The first nut (4072) is threadedly connected to the portion of the screw (4071) extending out of the rod body and abuts against the second rod body (404); The second nut (4073) is disposed opposite to the first nut (4072) and is disposed on both sides of the second rod (404). The second nut (4073) is threadedly connected to the screw (4071) and abuts against the second rod (404).

8. The cover plate welding positioning fixture according to claim 6, characterized in that, It also includes a handle (408), which is connected to the third rod (405), and the handle (408) is provided with a plurality of protrusions (4081).

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