Arm support hinge point seat riveting and welding tooling

Abstract

The utility model relates to riveting technology field discloses a kind of riveting tool for arm frame hinge point seat, including riveting platform, the support frame for placing arm frame being arranged on riveting platform and the first pin shaft, second pin shaft, third pin shaft for respectively positioning first tail hinge point seat, second tail hinge point seat and luffing hinge point seat on support frame;The support frame includes two parallelly arranged side plates, the end plate for positioning arm frame tail end being arranged in side plate one end and the multiple support plates for supporting arm frame being arranged between two side plates, the top of two the side plate close to arm frame tail end is equipped with protruding part, and first pin shaft hole and second pin shaft hole for positioning first tail hinge point seat and second tail hinge point seat respectively are equipped on the protruding part, two the side plate close to arm frame front end is equipped with third pin shaft hole for positioning luffing hinge point seat.The utility model realizes the quick positioning riveting of hinge point seat, with the advantages of high positioning accuracy, riveting time-saving and labor-saving.

Description

Technical Field

[0001] This utility model relates to the field of riveting and welding technology, and in particular to a riveting and welding fixture for boom hinge seat. Background Technology

[0002] The boom is a key load-bearing component of construction machinery such as cranes and aerial work platforms. It is made of high-strength steel and has various structural forms such as telescopic booms and folding booms.

[0003] There is a type of boom as shown in the attached figure. Figure 1 and attached Figure 2 As shown, a luffing hinge seat 10.3 needs to be welded to the bottom of the front end of the boom 10, and a first tail hinge seat 10.1 and a second tail hinge seat 10.2 need to be welded to the top of the tail end of the boom, respectively. The luffing hinge seat, the first tail hinge seat, and the second tail hinge seat all have positional and verticality requirements on the boom. Currently, these hinge seats are all positioned using traditional methods, such as manual measurement and marking, followed by fixing and welding with clamps. This method is not only time-consuming and labor-intensive but also suffers from low positioning accuracy.

[0004] Based on this, this application provides a riveting and welding fixture with high positioning accuracy and convenient welding of hinge point seats to solve the above problems. Utility Model Content

[0005] The present invention aims to solve the technical problems existing in the prior art. To this end, the present invention provides a boom hinge seat riveting and welding fixture with high positioning accuracy and convenient welding of hinge seat.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A welding fixture for boom hinge points is provided, comprising a welding platform, a support frame disposed on the welding platform for placing the boom, and a first pin, a second pin, and a third pin for positioning a first tail hinge point, a second tail hinge point, and a luffing hinge point on the support frame, respectively. The support frame includes two parallel side plates, an end plate disposed at one end of the side plates for positioning the tail end of the boom, and multiple support plates disposed between the two side plates for supporting the boom. The top of the two side plates near the tail end of the boom has a protrusion, and the protrusion has a first pin hole and a second pin hole for positioning the first tail hinge point and the second tail hinge point, respectively. The two side plates near the front end of the boom have a third pin hole for positioning the luffing hinge point.

[0008] In some alternative embodiments, the support plate is provided with a positioning groove that matches the bottom of the boom, and the position of the positioning groove on the support plate is such that after the first tail hinge point is positioned, its side surface fits against the inner surface of the side plate.

[0009] In some alternative implementations, the length of the side plate is greater than the distance between the tail end of the boom and the luffing hinge point, but less than the length of the boom.

[0010] In some alternative embodiments, the riveting platform is further provided with an auxiliary support plate with the same shape as the support plate at the front end of the boom.

[0011] In some alternative embodiments, multiple stiffening plates are welded between the opposite outer sides of the two side plates and one or both sides of the support plate and auxiliary support plate and the riveting platform.

[0012] In some optional embodiments, the support plate, auxiliary support plate, and end plate are all connected to the riveting and welding platform using a tongue-and-groove tenon structure and then welded together. Furthermore, the support plate and the side plate, as well as the end plate and the side plate, are all connected using a tongue-and-groove tenon structure and then welded together.

[0013] In some optional embodiments, both side plates are provided with a plurality of weight-reducing holes, which are one of round holes, elliptical holes, and oblong holes.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model uses the end plate of the support frame to position the tail end of the boom. The first tail hinge point seat, the second tail hinge point seat and the amplitude change hinge point seat are fixed on the first pin hole, the second pin hole and the third pin hole on the side plate by the first pin, the second pin hole and the third pin hole respectively, so as to realize the riveting and welding positioning of the first tail hinge point seat, the second tail hinge point seat and the amplitude change hinge point seat.

[0016] 2. The positioning groove on the support plate can limit the width of the boom, which is beneficial for the positioning and welding of the first tail hinge point seat extending from the side of the boom. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0018] Figure 1 This is a three-dimensional structural diagram of the boom provided by this utility model;

[0019] Figure 2 yes Figure 1 A side view of the boom provided;

[0020] Figure 3 This is a three-dimensional structural diagram of the boom hinge seat riveting and welding fixture provided by this utility model;

[0021] Figure 4 This is a front view of the boom provided by this utility model being clamped on a riveting and welding fixture;

[0022] Figure 5 yes Figure 3 The provided side view of the boom clamped on the riveting fixture.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1—Welding platform, 2—Support frame, 2.1—Side plate, 2.1.0—Weight reduction hole, 2.1.1—Protrusion, 2.2—End plate, 2.3—Support plate, 2.3.1—Positioning groove, 2.4—Firming plate, 2.5—Auxiliary support plate, 3—First pin, 4—Second pin, 5—Third pin, 10—Boom, 10.1—First tail hinge point seat, 10.2—Second tail hinge point seat, 10.3—Luffing hinge point seat. Detailed Implementation

[0025] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., 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 utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, the terms "first," "second," etc., used in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. The terms "installed," "connected," and "joined" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0030] Example 1

[0031] As attached Figure 3 To be continued Figure 5 As shown, this embodiment provides a boom hinge point seat riveting and welding fixture, including a riveting and welding platform 1, a support frame 2 disposed on the riveting and welding platform for placing the boom, and a first pin 3, a second pin 4, and a third pin 5 for positioning the first tail hinge point seat 10.1, the second tail hinge point seat 10.2, and the luffing hinge point seat 10.3 respectively on the support frame 2, wherein:

[0032] The support frame 2 includes two parallel side plates 2.1, an end plate 2.2 located at one end of the side plates for positioning the tail end of the boom, and multiple support plates 2.3 located between the two side plates for supporting the boom. The top of the two side plates 2.1 near the tail end of the boom is provided with a protrusion 2.1.1, and the protrusion 2.1.1 is provided with a first pin hole and a second pin hole for positioning the first tail hinge point seat 10.1 and the second tail hinge point seat 10.2, respectively. The two side plates 2.1 near the front end of the boom are provided with a third pin hole for positioning the luffing hinge point seat 10.3.

[0033] During the riveting process, the boom is hoisted directly above the support frame and slowly lowered. During lowering, the tail end of the boom is aligned with the end plate of the support frame, while controlling the distance between the boom sides and the side plates to ensure successful installation of the first and second tail hinge points. Since one side of the first tail hinge point extends from the boom, the boom is moved as close as possible to the side of the second tail hinge point to ensure proper positioning. After the boom is in place, the first tail hinge point is placed on the boom, and its position on the boom is moved until its hinge hole aligns with the first pin hole on the side plate. The first pin is then inserted, and the riveting is completed. The riveting of the second tail hinge point is performed in the same manner as the first. Finally, the riveting of the luffing hinge point is completed.

[0034] Preferably, in this embodiment, multiple stiffening plates 2.4 are welded between the opposite outer sides of the two side plates 2.1 and one or both sides of the support plate 2.3 and the riveting platform 1. This design increases the structural strength of the side plates and the support plate, and improves the service life of the tooling.

[0035] Preferably, in this embodiment, the support plate 2.3 and end plate 2.2 are connected to the riveting and welding platform 1 using a tongue-and-groove tenon structure before welding. Specifically, the bottom of the support plate and end plate is provided with multiple tenons, and the riveting and welding platform is provided with multiple grooves that interlock with the tenons. The support plate and the riveting and welding platform are then spot-welded together after interlocking. The support plate 2.3 is also connected to the side plate 2.1, and the end plate 2.2 is connected to the side plate 2.1 using a tongue-and-groove tenon structure before welding. Specifically, the bottom of the support plate is provided with tenons on both sides, and the bottom of the side plate is provided with grooves that interlock with the tenons. The support plate and the side plate are then spot-welded together after interlocking. Similarly, the end plate is provided with multiple tenons on both sides, and the side plate is provided with multiple grooves. The top plate and the side plate are then spot-welded together after interlocking. The tongue-and-groove tenon structure connecting the plates in this embodiment ensures the perpendicularity between the plates, which helps to improve the positioning accuracy and service life of the support frame.

[0036] Preferably, in this embodiment, both side plates 2.1 are provided with multiple weight-reducing holes 2.1.0, which are one of round holes, elliptical holes, and oblong holes. This design can reduce the weight of the side plates and also reduce the amount of raw materials used.

[0037] Example 2

[0038] Based on Example 1, as shown in the appendix Figure 3 As shown, in this embodiment, a positioning groove 2.3.1 matching the bottom of the boom is further provided on the support plate 2.3. The position of the positioning groove 2.3.1 on the support plate 2.3 is such that after the first tail hinge point seat 10.1 is positioned, its side surface fits against the inner surface of the side plate 2.1, as shown in the attached figure. Figure 5 As shown.

[0039] Since the first tail hinge point is an extension of the boom, its position needs to be adjusted when the boom is placed on the support frame to prevent the first tail hinge point from not fitting. Therefore, this embodiment can achieve rapid positioning of the boom within the support frame, and the side plate can also provide positioning for the side of the first tail hinge point, improving the positioning and welding accuracy of the first tail hinge point.

[0040] Example 3

[0041] Based on Embodiment 1 or Embodiment 2, the length of the side plate 2.1 in this embodiment is slightly greater than the distance between the tail end of the boom 10 and the luffing hinge point 10.3, and the length is sufficient to allow the luffing hinge point to be positioned using the third pin 5. This design facilitates the quick placement of the luffing hinge point and also makes its position adjustment easier.

[0042] Since the side plate is shorter than the boom, the front end of the boom extends beyond the support frame. In this embodiment, an auxiliary support plate 2.5 with the same shape as the support plate 2.3 is also provided on the riveting and welding platform 4 at the front end of the boom 10. Multiple stiffening plates 2.4 are welded to one or both sides of the auxiliary support plate 2.5 between it and the riveting and welding platform 1 to increase its structural strength. The connection structure between the auxiliary support plate and the riveting and welding platform in this embodiment is the same as the connection structure between the support plate and the riveting and welding platform, and will not be described in detail here.

[0043] 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 using the content of this utility model specification, 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 welding fixture for boom hinge seat riveting, characterized in that: It includes a riveting and welding platform, a support frame set on the riveting and welding platform for placing the boom, and a first pin, a second pin, and a third pin for positioning the first tail hinge point, the second tail hinge point, and the luffing hinge point on the support frame, respectively. The support frame includes two parallel side plates, an end plate located at one end of the side plates for positioning the tail end of the boom, and multiple support plates located between the two side plates for supporting the boom. The top of the two side plates near the tail end of the boom has a protrusion, and the protrusion has a first pin hole and a second pin hole for positioning the first tail hinge point seat and the second tail hinge point seat, respectively. The two side plates near the front end of the boom have a third pin hole for positioning the luffing hinge point seat.

2. The boom hinge seat riveting and welding fixture according to claim 1, characterized in that: The support plate is provided with a positioning groove that matches the bottom of the boom. The position of the positioning groove on the support plate is such that after the first tail hinge point is positioned, its side surface fits against the inner surface of the side plate.

3. The boom hinge seat riveting and welding fixture according to claim 1, characterized in that: The length of the side plate is greater than the distance between the tail end of the boom and the luffing hinge point, but less than the length of the boom.

4. The boom hinge seat riveting and welding fixture according to claim 3, characterized in that: The welding platform is also equipped with an auxiliary support plate with the same shape as the support plate at the front end of the boom.

5. The boom hinge seat riveting and welding fixture according to claim 4, characterized in that: Multiple stiffening plates are welded between the opposite outer sides of the two side plates and one or both sides of the support plate and auxiliary support plate and the riveting platform.

6. The boom hinge seat riveting and welding fixture according to claim 4, characterized in that: The support plate, auxiliary support plate, and end plate are all connected to the riveting and welding platform using a tongue-and-groove tenon structure before welding. The support plate and the side plate, as well as the end plate and the side plate, are also connected using a tongue-and-groove tenon structure before welding.

7. The boom hinge seat riveting and welding fixture according to claim 1, characterized in that: Both side plates are provided with multiple weight-reducing holes, which are one of the following: round holes, elliptical holes, and oval holes.

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