A pin welding positioning fixture

Abstract

This utility model belongs to the field of welding fixture technology, and particularly relates to a pin welding positioning fixture. The pin welding positioning fixture includes a first positioning component, a V-shaped positioning plate, a second positioning component, and a third positioning component. The first positioning component is used to position the welding plate; the V-shaped positioning plate is used to restrict the pin in the outer circumferential direction; the second positioning component is used to position the pin so that the pin oil hole is parallel to the welding plate; the third positioning component is used to position the pin so that the pin oil hole is perpendicular to the welding plate. This utility model, by setting up this fixture, can effectively reduce the frequent need to change fixtures due to differences in pin specifications and oil hole positions, expanding its application scenarios and increasing its versatility.

Description

Technical Field

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

[0002] Construction machinery refers to the general term for mechanical equipment used in fields such as engineering construction, land resource development, agricultural, forestry and water conservancy construction, transportation construction, and municipal engineering construction to complete various engineering operations in a mechanized manner. It is a core tool for achieving efficient, precise, and large-scale construction in the engineering construction field, significantly improving the efficiency, quality, and safety of engineering construction by replacing or assisting manual labor.

[0003] Construction machinery includes excavators, cranes, etc. At the boom hinge of excavators, cranes, etc., there are pin welded parts for joint folding and load bearing. The pin welded parts are made by welding a pin and a welding plate. The orientation of the oil hole on the pin and the direction of the welding plate are different for different specifications and locations of the pin welded parts. They can be 0 degrees, 90 degrees or 180 degrees. Different welding positioning fixtures are required. Changing the fixtures takes time and is also costly. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned technical problems by providing a pin welding positioning fixture, which effectively reduces the need for frequent fixture changes due to differences in pin specifications and oil hole positions, expands its application scenarios, and increases its versatility.

[0005] In view of this, the present invention provides a pin welding positioning fixture, comprising:

[0006] A first positioning component, the first positioning component being used to position the welding plate;

[0007] V-shaped positioning plate, the V-shaped positioning plate is used to restrict the pin in the outer circumferential direction of the pin;

[0008] The second positioning component is used to position the pin so that the oil hole of the pin is parallel to the welding plate.

[0009] The third positioning component is used to position the pin so that the oil hole of the pin is perpendicular to the welding plate.

[0010] In this technical solution, by setting this tooling, the frequent tooling changes due to differences in pin specifications and oil hole positions can be effectively reduced, thus expanding its application scenarios and increasing its versatility.

[0011] Furthermore, the V-shaped positioning plate includes a V-shaped bayonet.

[0012] Furthermore, the first positioning component includes:

[0013] The first mounting bracket is fixedly mounted on the side of the V-shaped positioning plate;

[0014] A side positioning rod is fixedly mounted on the first mounting bracket, and the end of the side positioning rod away from the first mounting bracket is used to abut against the side of the welding plate.

[0015] Furthermore, the first mounting bracket includes:

[0016] The upright frame is fixedly mounted on the side of the V-shaped positioning plate;

[0017] A clamping rod is fixedly mounted on the upright frame via a first connecting structure. The clamping rod is used to fix and hold the side positioning rod. The clamping rod includes an upper clamping plate, a lower clamping plate, and a first fastening bolt. The upper clamping plate and the lower clamping plate are respectively provided with multiple semi-circular notches. Two semi-circular notches on the upper clamping plate and the lower clamping plate are combined to form a receiving hole for accommodating the side positioning rod. Multiple first fastening bolts are provided to fasten the upper clamping plate and the lower clamping plate to hold the side positioning rod.

[0018] Furthermore, the first connection structure includes:

[0019] Vertical slot, which is formed on the upright frame;

[0020] A connecting rod, one end of which is fixedly inserted through the lower clamping plate, and the other end of which is provided with a threaded hole;

[0021] The second fastening bolt passes through the vertical groove and is threaded into the threaded hole of the connecting rod.

[0022] Furthermore, the second positioning component includes:

[0023] A connecting shaft is fixedly installed in the vertical groove of the upright frame by a second fastening bolt, and a receiving hole is provided on the connecting shaft;

[0024] The first positioning shaft is disposed in the receiving hole and can be inserted into the oil hole on the pin. The first positioning shaft is perpendicular to the axis of the side positioning rod.

[0025] In this technical solution, when the oil hole of the pin to be welded is at an angle of 0 degrees to the direction of the welding plate, adjust the height of the clamping rod and the connecting shaft on the stand so that the side positioning rod is facing the side of the welding plate and the first positioning shaft is facing the oil hole on the pin. After adjustment, the pin is clamped in the V-shaped slot of the V-shaped positioning plate, and then the first positioning shaft is inserted into the oil hole to keep the pin fixed. Then, the welding plate is placed on the pin and the direction of the welding plate is adjusted to be close to 0 degrees. The position of the welding plate is finely adjusted so that the two side positioning rods on the clamping rod are exactly against the side of the welding plate. At this time, when the oil hole is at an angle of 0 degrees to the direction of the welding plate, spot welding can be performed.

[0026] Furthermore, the clamping rod is fixedly provided with side positioning rods on both sides of the pin.

[0027] In this technical solution, when the oil hole of the pin to be welded is at an angle of 180 degrees to the direction of the welding plate, simply put the welding plate on the pin and adjust the direction of the welding plate to be close to 180 degrees. Then, finely adjust the position of the welding plate so that the two side positioning rods on the clamping rod on the other side are exactly against the side of the welding plate.

[0028] Furthermore, the third positioning component includes:

[0029] The upright plate is fixed to the side of the V-shaped positioning plate and is positioned opposite to the upright frame by a third fastening bolt. The upright plate is provided with an inclined groove.

[0030] The second positioning shaft passes through the inclined groove and can be inserted into the oil hole on the pin. The second positioning shaft is parallel to the axis of the side positioning rod.

[0031] Furthermore, a transverse adjustment groove is provided on the upright plate, and the third fastening bolt can pass through the transverse adjustment groove and be threaded to the side of the V-shaped positioning plate.

[0032] In this technical solution, when the oil hole of the pin to be welded is at a 90-degree angle to the direction of the welding plate, adjust the height of the clamping rod so that the side positioning rod is directly opposite the side of the welding plate. The horizontal adjustment groove allows for fine adjustment of the horizontal position of the vertical plate to accommodate pins of different diameters. Make the second positioning shaft directly opposite the oil hole on the pin. After adjustment, clamp the pin in the V-shaped slot of the V-shaped positioning plate, and then insert the second positioning shaft into the oil hole to keep the pin fixed. Then, put the welding plate on the pin and adjust the direction of the welding plate to be close to 90 degrees. Fine-tune the position of the welding plate so that the two side positioning rods on the clamping rod are exactly against the side of the welding plate. At this time, when the oil hole is at a 90-degree angle to the direction of the welding plate, spot welding can be performed.

[0033] The beneficial effects of this utility model are:

[0034] 1. By setting this tooling, the need for frequent tooling changes due to differences in pin specifications and oil hole positions can be effectively reduced, expanding its application scenarios and increasing its versatility. Attached Figure Description

[0035] Figure 1 It is a 3D view of the positioning fixture;

[0036] Figure 2 This is a perspective view corresponding to Example 1;

[0037] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0038] Figure 4 yes Figure 2 A half-section view;

[0039] Figure 5 yes Figure 4 Enlarged view of point B in the middle;

[0040] Figure 6 This is a perspective view corresponding to Example 2;

[0041] Figure 7 This is a perspective view corresponding to Example 3;

[0042] The markings in the diagram are as follows:

[0043] 1. First positioning component; 2. Welding plate; 3. Pin; 4. V-shaped positioning plate; 5. Second positioning component; 6. Third positioning component; 7. V-shaped bayonet; 8. First mounting bracket; 9. Side positioning rod; 10. Stand; 11. Clamping rod; 12. Upper clamping plate; 13. Lower clamping plate; 14. First fastening bolt; 15. Notch groove; 16. Vertical groove; 19. Connecting rod; 18. Second fastening bolt; 17. Connecting shaft; 20. First positioning shaft; 21. Standing plate; 22. Third fastening bolt; 23. Inclined groove; 24. Second positioning shaft; 25. Lateral adjustment groove. Detailed Implementation

[0044] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0045] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0046] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0047] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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 the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0048] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0049] like Figure 1 As shown, a welding positioning fixture for a pin 3 and its positioning method include:

[0050] First positioning component 1, the first positioning component 1 is used to position welding plate 2;

[0051] V-shaped positioning plate 4, the V-shaped positioning plate 4 is used to restrict the pin 3 in the outer circumferential direction of the pin 3;

[0052] The second positioning component 5 is used to position the pin 3 so that the oil hole of the pin 3 is parallel to the welding plate 2.

[0053] The third positioning component 6 is used to position the pin 3 so that the oil hole of the pin 3 is perpendicular to the welding plate 2.

[0054] By setting this tooling, the need for frequent tooling changes due to differences in pin 3 specifications and oil hole positions can be effectively reduced, expanding its application scenarios and increasing its versatility.

[0055] The V-shaped positioning plate 4 includes a V-shaped bayonet 7.

[0056] Example 1

[0057] like Figure 2-5 As shown, the first positioning component 1 includes:

[0058] The first mounting bracket 8 is fixedly mounted on the side of the V-shaped positioning plate 4;

[0059] Side positioning rod 9, which is fixedly mounted on the first mounting bracket 8, with the end of the side positioning rod 9 away from the first mounting bracket 8 used to abut against the side of the welding plate 2.

[0060] The first mounting bracket 8 includes:

[0061] The upright frame 10 is fixedly installed on the side of the V-shaped positioning plate 4;

[0062] The clamping rod 11 is fixedly mounted on the upright frame 10 via a first connecting structure. The clamping rod 11 is used to fix and clamp the side positioning rod 9. The clamping rod 11 includes an upper clamping plate 12, a lower clamping plate 13, and a first fastening bolt 14. The upper clamping plate 12 and the lower clamping plate 13 are respectively provided with a plurality of semi-circular notches 15. Two semi-circular notches 15 on the upper clamping plate 12 and the lower clamping plate 13 are combined to form a receiving hole for accommodating the side positioning rod 9. A plurality of first fastening bolts 14 are provided to fasten and clamp the side positioning rod 9 with the upper clamping plate 12 and the lower clamping plate 13.

[0063] The first connection structure includes:

[0064] Vertical groove 16, which is formed on the upright frame 10;

[0065] Connecting rod 19, one end of which is fixedly inserted into the lower clamping plate 13, and the other end is provided with a threaded hole;

[0066] The second fastening bolt 18 passes through the vertical groove 16 and is threadedly connected to the threaded hole of the connecting rod 19.

[0067] The second positioning component 5 includes:

[0068] The connecting shaft 17 is fixedly installed in the vertical groove 16 of the support frame 10 by the second fastening bolt 18, and the connecting shaft 17 is provided with a receiving hole;

[0069] The first positioning shaft 20 is disposed in the receiving hole and can be inserted into the oil hole on the pin 3. The first positioning shaft 20 is perpendicular to the axis of the side positioning rod 9.

[0070] When the oil hole of the pin 3 to be welded forms an angle of 0 degrees with the direction of the welding plate 2, adjust the height of the clamping rod 11 and the connecting shaft 17 on the stand 10 so that the side positioning rod 9 is directly opposite the side of the welding plate 2 and the first positioning shaft 20 is directly opposite the oil hole on the pin 3. After adjustment, clamp the pin 3 into the V-shaped slot 7 of the V-shaped positioning plate 4, and then insert the first positioning shaft 20 into the oil hole to keep the pin 3 fixed. Then, put the welding plate 2 on the pin 3 and adjust the direction of the welding plate 2 to be close to 0 degrees. Fine-tune the position of the welding plate 2 so that the two side positioning rods 9 on the clamping rod 11 are exactly against the side of the welding plate 2. At this time, when the oil hole forms an angle of 0 degrees with the direction of the welding plate 2, it forms as follows: Figure 2 This state allows for spot welding.

[0071] Example 2

[0072] like Figure 6 As shown, the clamping rod 11 has side positioning rods 9 fixedly installed on both sides of the pin 3. When the oil hole of the pin 3 to be welded forms an angle of 180 degrees with the direction of the welding plate 2, simply place the welding plate 2 on the pin 3 and adjust the direction of the welding plate 2 to be close to 180 degrees. Fine-tune the position of the welding plate 2 so that the two side positioning rods 9 on the clamping rod 11 on the other side are exactly against the side of the welding plate 2, forming a shape as shown. Figure 6 The state.

[0073] Example 3

[0074] like Figure 7 As shown, the third positioning component 6 includes:

[0075] The upright plate 21 is fixedly mounted on the side of the V-shaped positioning plate 4 and opposite to the upright frame 10 by the third fastening bolt 22. The upright plate 21 is provided with a slanted groove 23.

[0076] The second positioning shaft 24 passes through the inclined groove 23 and can be inserted into the oil hole on the pin 3. The second positioning shaft 24 is parallel to the axis of the side positioning rod 9.

[0077] The upright plate 21 is provided with a transverse adjustment groove 25, and the third fastening bolt 22 can pass through the transverse adjustment groove 25 and be threaded to the side of the V-shaped positioning plate 4.

[0078] When the oil hole of the pin 3 to be welded forms a 90-degree angle with the direction of the welding plate 2, adjust the height of the clamping rod 11 so that the side positioning rod 9 is directly opposite the side of the welding plate 2. The lateral adjustment groove 25 allows for fine adjustment of the lateral position of the vertical plate 21 to accommodate pins 3 of different diameters. Position the second positioning shaft 24 so that it is directly opposite the oil hole on the pin 3. After adjustment, clamp the pin 3 into the V-shaped slot 7 of the V-shaped positioning plate 4, then insert the second positioning shaft 24 into the oil hole to keep the pin 3 fixed. Then, place the welding plate 2 on the pin 3 and adjust the direction of the welding plate 2 to be close to 90 degrees. Fine-tune the position of the welding plate 2 so that the two side positioning rods 9 on the clamping rod 11 are exactly against the side of the welding plate 2. At this time, when the oil hole forms a 90-degree angle with the direction of the welding plate 2, it forms a shape like... Figure 7 This state allows for spot welding.

[0079] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A pin welding positioning fixture, characterized in that... ,include: First positioning component (1), the first positioning component (1) is used to position welding plate (2); V-shaped positioning plate (4), the V-shaped positioning plate (4) is used to restrict the pin (3) in the outer circumferential direction; The second positioning component (5) is used to position the pin (3) so that the oil hole of the pin (3) is parallel to the welding plate (2); The third positioning component (6) is used to position the pin (3) so that the oil hole of the pin (3) is perpendicular to the welding plate (2).

2. The pin welding positioning fixture according to claim 1, characterized in that, The V-shaped positioning plate (4) includes a V-shaped bayonet (7).

3. The pin welding positioning fixture according to claim 1, characterized in that, The first positioning component (1) includes: The first mounting bracket (8) is fixedly mounted on the side of the V-shaped positioning plate (4); Side positioning rod (9) is fixedly mounted on the first mounting bracket (8). The end of the side positioning rod (9) away from the first mounting bracket (8) is used to abut against the side of the welding plate (2).

4. The pin welding positioning fixture according to claim 3, characterized in that, The first mounting bracket (8) includes: The upright (10) is fixedly installed on the side of the V-shaped positioning plate (4); The clamping rod (11) is fixedly mounted on the upright (10) through the first connecting structure. The clamping rod (11) is used to fix and clamp the side positioning rod (9). The clamping rod (11) includes an upper clamping plate (12), a lower clamping plate (13) and a first fastening bolt (14). The upper clamping plate (12) and the lower clamping plate (13) are respectively provided with a plurality of semi-circular notches (15). The two semi-circular notches (15) on the upper clamping plate (12) and the lower clamping plate (13) are combined to form a receiving hole for accommodating the side positioning rod (9). A plurality of first fastening bolts (14) are provided to fasten and clamp the side positioning rod (9) with the upper clamping plate (12) and the lower clamping plate (13).

5. The pin welding positioning fixture according to claim 4, characterized in that, The first connection structure includes: Vertical groove (16), said vertical groove (16) is formed on the upright frame (10); Connecting rod (19), one end of which is fixedly inserted into the lower clamping plate (13), and the other end is provided with a threaded hole; The second fastening bolt (18) passes through the vertical groove (16) and is threadedly connected to the threaded hole of the connecting rod (19).

6. The pin welding positioning fixture according to claim 4, characterized in that, The second positioning component (5) includes: A connecting shaft (17) is fixedly installed in the vertical groove (16) of the upright (10) by a second fastening bolt (18), and a receiving hole is provided on the connecting shaft (17); The first positioning shaft (20) is located in the receiving hole and can be inserted into the oil hole on the pin (3). The first positioning shaft (20) is perpendicular to the axis of the side positioning rod (9).

7. The pin welding positioning fixture according to claim 6, characterized in that, The clamping rod (11) is fixedly provided with side positioning rods (9) on both sides of the pin (3).

8. The pin welding positioning fixture according to claim 4, characterized in that, The third positioning component (6) includes: The upright plate (21) is fixedly mounted on the side of the V-shaped positioning plate (4) and opposite to the upright frame (10) by the third fastening bolt (22). The upright plate (21) is provided with a slanted groove (23). The second positioning shaft (24) passes through the inclined groove (23) and can be inserted into the oil hole on the pin (3). The second positioning shaft (24) is parallel to the axis of the side positioning rod (9).

9. A pin welding positioning fixture according to claim 8, characterized in that, The upright plate (21) is provided with a transverse adjustment groove (25), and the third fastening bolt (22) can pass through the transverse adjustment groove (25) and be threaded to the side of the V-shaped positioning plate (4).

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