CN221019485U - Positioning tool for connecting frame - Google Patents

Abstract

The utility model discloses a positioning fixture of a connecting frame, comprising: a base, both ends of which are provided with a first positioning structure in the length direction, and the first positioning structure is arranged between two side panels; two limit seats, respectively arranged on both sides of the width direction of the base; the limit seats are arranged on the opposite sides of the two side panels, and the limit seats include contact wheels, and the contact wheels abut against the side panels; a support assembly, which is arranged between the two side panels, and the two ends of the support assembly abut against the two side panels respectively; a clamping assembly, the two ends of which are respectively connected to the two side panels; the clamping assembly cooperates with the support assembly to fix the position of the side panels in the width direction of the base; and a positioning assembly, which is installed on the base and is used to position the side panels in the length direction of the base. The positioning fixture of the connecting frame according to the embodiment of the utility model can realize the rapid assembly welding of the connecting frame, which can not only improve the welding quality, but also greatly improve the production efficiency, and reduce the production cycle and production cost.

Description

Positioning tool for connecting frame

Technical Field

The utility model relates to the technical field of positioning tooling, in particular to a positioning tooling of a connecting frame.

Background technique

The body and the boom of the boom-type aerial work vehicle are connected through structures such as a connecting frame, a connecting rod and a turntable. The connecting frame includes a bottom plate and two side plates, and the two side plates are welded to the opposite sides of the bottom plate respectively; both ends of the side plates in the length direction are provided with connecting holes, and the outer periphery of the connecting holes needs to be welded with connecting seats. The accuracy of the connecting frame has a very important impact on the assembly convenience, safety and reliability of the whole vehicle. Therefore, in the production process of the connecting frame, it is necessary to ensure the stability of the welding of the two side plates and the bottom plate, to ensure that the two side plates are parallel and aligned, and the distance between the two side plates needs to be precisely controlled. There are also requirements that the two first connecting holes of the two side plates are coaxial, the two second connecting holes are coaxial, and the central axis of the first connecting hole is parallel to the central axis of the second connecting hole. At present, the production of the connecting frame mainly adopts the method of simple tooling positioning for welding. Not only is the positioning accuracy not high, but there is also the problem of inconvenient demoulding after assembly welding, resulting in low production efficiency, long production cycle and high production cost.

Utility Model Content

The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a positioning tool for a connecting frame, which can realize the rapid assembly welding of the connecting frame, not only improve the welding quality, but also greatly improve the production efficiency, reduce the production cycle and production cost.

A positioning tool for a connecting frame according to an embodiment of the utility model includes:

The base has first positioning structures at both ends in the length direction, and the first positioning structures are arranged between the two side panels;

Two limit seats are respectively arranged on both sides of the base in the width direction; the limit seats are arranged on the opposite sides of the two side plates, and the limit seats include contact wheels, and the contact wheels abut against the side plates;

The supporting assembly is arranged between the two side plates, and the two ends of the supporting assembly are respectively against the two side plates;

A clamping assembly, with two ends respectively connected to the two side panels; the clamping assembly cooperates with the supporting assembly to fix the position of the side panels in the width direction of the base;

A positioning assembly is installed on the base and is used to position the side plate in the length direction of the base.

The positioning tool of the connecting frame according to the embodiment of the utility model has at least the following beneficial effects:

By setting a first positioning structure and a supporting assembly to limit the side panel, and then setting a clamping assembly to further fix the position of the side panel, the accuracy of the relative position of the side panel and the bottom plate in the width direction of the base is effectively guaranteed; the positioning assembly ensures the accurate positioning of the side panel in the length direction of the base, thereby improving the manufacturing accuracy of the connecting frame and the welding efficiency, thereby reducing the production cost.

According to some embodiments of the present utility model, the clamping assembly includes a center rod and two clamping members, the two clamping members are respectively connected to two ends of the center rod, and the two clamping members are respectively connected to two side plates.

According to some embodiments of the utility model, the clamping member is provided with a clamping slot, a side wall of the clamping slot is provided with a locking screw hole, and the locking screw hole is connected with a locking bolt.

According to some embodiments of the present invention, a plurality of contact wheels are provided, and the plurality of contact wheels are spaced apart in the vertical direction and/or the horizontal direction.

According to some embodiments of the present utility model, the two limiting seats can move relatively and be fixed.

According to some embodiments of the utility model, the positioning assembly includes a positioning seat, and the positioning seat is provided with a positioning shaft; the positioning shaft can pass through the first connecting hole or the second connecting hole of the side plate to position the side plate in the length direction of the base.

According to some embodiments of the utility model, the positioning seat is provided with a positioning hole for the positioning shaft to pass through, a shaft sleeve is installed in the positioning hole, and the positioning shaft passes through the shaft sleeve.

According to some embodiments of the present invention, the end of the positioning shaft is sleeved with a bushing, and the bushing is detachably connected to the positioning shaft.

According to some embodiments of the utility model, the outer peripheral surface of the positioning shaft is provided with a cutting surface; the positioning shaft passing through the sleeve, the cutting surface and the inner side wall of the sleeve have a spacing.

According to some embodiments of the present invention, a second positioning structure is further included. The second positioning structure is arranged at one end of the base, and the second positioning structure is used to support and position the end of the side plate.

Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

FIG1 is a schematic diagram of a positioning tool installed with a connecting frame according to an embodiment of the utility model;

FIG2 is a schematic diagram of the structure of an embodiment of the utility model;

FIG3 is a cross-sectional view of an embodiment of the utility model;

FIG4 is a schematic structural diagram of a clamping assembly according to an embodiment of the present utility model;

FIG5 is a cross-sectional view of a positioning shaft of a positioning assembly according to an embodiment of the present utility model;

FIG. 6 is a schematic structural diagram of a finished connecting frame.

Figure Number:

Base 100, first positioning structure 110, second positioning structure 120;

Limiting seat 200, contact wheel 210;

Support assembly 300;

Clamping assembly 400, center rod 410, clamping member 420, slot 421, locking bolt 422;

Positioning seat 500, positioning hole 510, sleeve 511, positioning shaft 520, cutting surface 521;

The connecting frame 600 , the bottom plate 610 , the side plate 620 , the connecting seat 630 , the first connecting hole 640 , and the second connecting hole 650 .

Detailed ways

The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

A positioning fixture of a connecting frame in an embodiment of the utility model is used to fix the components of the connecting frame 600 before welding the connecting frame 600, so as to improve the welding effect and welding quality of the connecting frame 600. The connecting frame 600 of this embodiment is mainly suitable for the connection between the body and the boom of an aerial work vehicle. As shown in FIG6 , the main components of the connecting frame 600 include a bottom plate 610, two side plates 620 and four connecting seats 630. The two side plates 620 are respectively welded to the opposite sides of the bottom plate 610; the first connecting hole 640 and the second connecting hole 650 are respectively provided at both ends in the length direction of the single side plate 620, and the outer sides of the first connecting hole 640 and the second connecting hole 650 need to be welded with the connecting seats 630. The four connecting seats 630 are respectively welded to the two side plates 620, and two connecting seats 630 are welded to each side plate 620.

It should be understood that the apertures of the first connection hole 640 and the second connection hole 650 of a single side plate 620 are not necessarily equal. The four connection seats 630 are divided into two first connection seats 630 and two second connection seats 630. The first connection seat 630 is welded to the outer periphery of the first connection hole 640, and the second connection seat 630 is welded to the outer periphery of the second connection hole 650. The shapes and sizes of the first connection seat 630 and the second connection seat 630 are not necessarily the same. The key point of welding the connection frame 600 is to ensure that the positions of the two side plates 620 welded to the bottom plate 610 are accurate. At the same time, the two side plates 620 also need to be aligned parallel to each other. The two first connection holes 640 of the two side plates 620 must ensure coaxiality, and the two second connection holes 650 of the two side plates 620 also need to ensure coaxiality. Therefore, when welding the connection frame 600, the side plates 620 and the bottom plate 610 need to be accurately fixed in position to obtain better welding quality. At present, the welding of the connecting frame 600 is mainly performed by positioning with simple tooling, which makes it difficult to achieve accurate positioning of the side plate 620, resulting in low manufacturing efficiency of the connecting frame 600, long welding time, and difficulty in ensuring welding accuracy, which seriously increases the manufacturing cost. This embodiment proposes a special positioning tooling for the connecting frame 600, which can greatly improve the positioning accuracy of the side plate 620, the bottom plate 610 and the connecting seat 630, thereby improving the welding quality and welding efficiency of the connecting frame 600, and further reducing the production cost of the connecting frame 600. The positioning tooling of this embodiment is described in detail below in conjunction with Figures 1 to 5.

In some embodiments of the utility model, the positioning tool includes a base 100 and a first positioning structure 110 and a limiting seat 200 installed on the base 100. The base 100 is rectangular, and the upper surface of the base 100 is provided with a support surface protruding from its surface, and a support block is provided on the support surface. The bottom plate 610 is placed on the support block, and the side plate 620 falls on the support surface. The first positioning structure 110 is installed on the support surface, and the limiting seat 200 is installed on the upper surface of the base 100. As shown in Figures 1 and 2, two first positioning structures 110 are provided, and the two first positioning structures 110 are arranged at intervals along the width direction of the base 100, and the two first positioning structures 110 are arranged between the two side plates 620.

In some embodiments of the present invention, a second positioning structure 120 is also included. Two second positioning structures 120 are also arranged at intervals along the width direction of the base 100, and the first positioning structure 110 and the second positioning structure 120 are respectively arranged at both ends of the length direction of the base 100; the first positioning structure 110 is used to contact one side of the side panel 620, and the second positioning structure 120 is used to contact one end of the side panel 620 in the length direction, and the second positioning structure 120 is used to support and position the end of the side panel.

In some specific embodiments of the utility model, the two first positioning structures 110 are arranged between the two side plates 620; two limiting seats 200 are provided, and the two limiting seats 200 are respectively arranged on both sides of the width direction of the base 100; the limiting seats 200 are arranged on the opposite side of the two side plates 620, and the limiting seats 200 include contact wheels 210, and the contact wheels 210 are against the side plates 620. When welding, the bottom plate 610 is placed first, and then the side plates 620 are placed, and the side plates 620 are placed from top to bottom. Referring to Figures 1 and 2, the opposite sides of a single side plate 620 are respectively against the first positioning structure 110 and the limiting seat 200, and then one end of the side plate 620 in the length direction contacts the second positioning structure 120, and the second positioning structure 120 has a contact plate, and the contact plate contacts one end of the side plate 620 in the length direction, thereby realizing the pre-positioning of the side plate 620. Pre-positioning means that although the relative positions of the two side panels 620 have been fixed and can stand up under the action of the first positioning structure 110, the second positioning structure 120 and the limiting seat 200, the two side panels 620 are still unstable. At the same time, the two side panels 620 cannot be guaranteed to be completely parallel, and the spacing between the two side panels is not necessarily accurate. At this time, if the side panels 620 and the base 100 are directly welded, it is still difficult to achieve high-precision welding effects. Therefore, other structures are needed to further limit the two side panels 620.

It should be understood that the shapes and sizes of the two first positioning structures 110 are not necessarily the same, but their functions are basically the same; the shapes and sizes of the two second positioning structures 120 are not necessarily the same, but their functions are basically the same.

In some embodiments of the utility model, the limit seat 200 is connected to the base 100 by fasteners, for example, connected to the base 100 by bolts; the two limit seats 200 can move relatively and be fixed. Specifically, the limit seat 200 in this embodiment is provided with a strip groove, and the length direction of the strip groove is the width direction of the base 100; the bolt is inserted into the strip groove, so that the bolt can slide along the strip groove, thereby adjusting and fixing the relative position of the two limit seats 200. However, it should be understood that since this embodiment is mainly used for welding a connecting frame 600, the limit seat 200 generally only needs to adjust the relative position of the two limit seats 200 during the first welding, and there is no need to further adjust the position of the limit seat 200 during subsequent welding.

It is conceivable that the position of the limit seat 200 may be adjusted and fixed in other ways, such as driving the limit seat 200 by a cylinder, an oil cylinder, or a screw rod, so as to achieve position adjustment of the limit seat 200.

In some embodiments of the utility model, a single limit seat 200 is provided with a plurality of contact wheels 210, and the plurality of contact wheels 210 are arranged at intervals along the vertical direction and/or the horizontal direction. Specifically, as shown in FIG. 1 and FIG. 2, the limit seat 200 in this embodiment is provided with three contact wheels 210, and the contact wheels 210 are rotatably mounted on the limit seat 200 around their own axes. The three contact wheels 210 are arranged in a triangular shape, which can effectively increase the contact range between the limit seat 200 and the side plate 620, thereby achieving better support for the side plate 620. Arranging the contact wheel 210 in contact with the side plate 620 can reduce the contact area with the side plate 620, reduce the friction force when the side plate 620 and the contact wheel 210 slide relative to each other, thereby facilitating easier removal of the cost connection frame 600.

It is conceivable that the limiting seat 200 is not limited to being provided with three contact wheels 210 , but may also be provided with four or five contact wheels 210 .

In some embodiments of the utility model, the positioning tool of this embodiment also includes a support assembly 300 and a clamping assembly 400, which are used to fix the relative positions of the two side panels 620 and to position the side panels 620 in the width direction of the base 100. As shown in FIG. 2 , the support assembly 300 is arranged between the two side panels 620, and the two ends of the support assembly 300 are respectively against the two side panels 620; the two ends of the clamping assembly 400 are respectively connected to the two side panels 620. There are multiple support assemblies 300, and the multiple support assemblies 300 are arranged at intervals along the length direction of the side panels 620, for example, three or four support assemblies 300 are arranged; the clamping assembly 400 is arranged above the support assembly 300 and at the top of the side panels 620, and there are also multiple clamping assemblies 400, and the multiple clamping assemblies 400 are also arranged at intervals along the length direction of the side panels 620. The support assembly 300 is used to apply a force to move the two side panels 620 away from each other, and the clamping assembly 400 is used to apply a force to move the two side panels 620 toward each other, thereby achieving the fixation of the position of the two side panels 620 in the width direction of the base 100, ensuring the stability between the two side panels 620, and at the same time more accurately controlling the spacing and parallelism between the two side panels 620, thereby improving the welding accuracy of the bottom plate 610 and the side panels 620.

In some embodiments of the present invention, the support assembly 300 may be two screws with forward and reverse threads, or may be other structures such as an axis that can adjust the overall length.

Furthermore, the support assembly 300 may be provided with a scale to facilitate adjustment of the length of the support assembly 300 , thereby ensuring that the lengths of the plurality of support assemblies 300 are consistent.

In some embodiments of the present invention, the clamping assembly 400 includes a central rod 410 and two clamping members 420, the two clamping members 420 are respectively connected to the two ends of the central rod 410, and the two clamping members 420 are respectively connected to the two side plates 620. Specifically, as shown in FIG. 4 , the clamping member 420 is provided with a slot 421, and the slot 421 is for the side plates 620 to be inserted; the two clamping members 420 are respectively threadedly connected to the two ends of the length direction of the central rod 410, and the two clamping members 420 can be driven to move away from or close to each other by rotating the central rod 410 clockwise or counterclockwise.

Furthermore, a locking screw hole is provided on one side wall of the clamping slot 421 of the clamping member 420, and a locking bolt 422 is connected to the locking screw hole. The locking bolt 422 is used to abut against the side plate 620 to improve the stability of the connection between the clamping member 420 and the side plate 620.

In some embodiments of the utility model, the positioning tool further includes a positioning assembly, which is installed on the base 100 and is used to position the side plate 620 in the length direction of the base 100. Specifically, the positioning assembly includes a positioning seat 500, and the positioning seat 500 is penetrated with a positioning shaft 520; the positioning shaft 520 can pass through the first connection hole 640 or the second connection hole 650 of the side plate 620 to position the side plate 620 in the length direction of the base 100. Specifically, as shown in Figures 1 and 2, four positioning seats 500 are provided, two positioning seats 500 are respectively aligned with the two first connection holes 640 of the two side plates 620, and two positioning seats 500 are respectively aligned with the two second connection holes 650 of the two side plates 620, and the four positioning seats 500 are all penetrated with a positioning shaft 520, and the positioning shaft 520 can pass through the first connection hole 640 or the second connection hole 650.

It should be noted that, as shown in Figure 2, the heights of the positioning seats 500 are not all the same. According to the heights of the positioning seats 500, they can be divided into a first positioning seat aligned with the first connecting hole 640 and a second positioning seat aligned with the second connecting hole 650. The two first positioning seats are symmetrically arranged with respect to the width direction of the base 100, and the two second positioning seats are symmetrically arranged with respect to the width direction of the base 100.

It is conceivable that only two positioning shafts 520 may be provided, wherein one positioning shaft 520 passes through the two positioning seats 500 and the two first connection holes 640 at one end of the two bases 100 in the length direction, and the other positioning shaft 520 passes through the two positioning seats 500 and the two second connection holes 650 at the other end of the two bases 100 in the length direction; that is. However, compared with providing two positioning shafts 520, the solution of four positioning shafts 520 is more convenient for the positioning shafts 520 to pass through the side plate 620 or be taken out from the side plate 620, thereby improving the manufacturing efficiency of the connecting frame 600.

In some specific embodiments of the utility model, the positioning seat 500 is provided with a positioning hole 510 for the positioning shaft 520 to pass through, a sleeve 511 is installed in the positioning hole 510, and the positioning shaft 520 is inserted into the sleeve 511. Specifically, as shown in Figures 1 to 3, a single positioning seat 500 is provided with two positioning holes 510 arranged at intervals, and the two positioning holes 510 can improve the stability of the positioning shaft 520. The outer diameter of the positioning shaft 520 is smaller than the inner diameter of the positioning hole 510, so a sleeve 511 is installed in the positioning hole 510, the sleeve 511 is installed in the positioning hole 510, and the positioning shaft 520 is inserted into the sleeve 511; by providing the sleeve 511 to connect the positioning shaft 520 and the positioning seat 500, the wear of the positioning shaft 520 can be effectively reduced, thereby extending the service life of the positioning shaft 520.

In some embodiments of the present invention, a bushing is provided at the end of the positioning shaft 520, and the bushing is detachably connected to the positioning shaft 520. Specifically, the structure of the bushing is basically the same as that of the shaft sleeve 511, and the provision of the bushing can facilitate the separation of the positioning shaft 520 and the side plate 620. At the same time, if the size of the first connection hole 640 or the second connection hole 650 of the side plate 620 needs to be changed, the positioning shaft 520 can be continued to be used by changing the bushing, which can well reduce the diameter types and specifications of the positioning shaft 520, is suitable for the universal production of the positioning shaft 520, and can also prevent the positioning shaft 520 from rapid wear during use.

In some embodiments of the utility model, the outer circumference of the positioning shaft 520 is provided with a cutting surface 521; the positioning shaft 520 is inserted into the sleeve 511, and there is a distance between the cutting surface 521 and the inner side wall of the sleeve 511. Specifically, as shown in FIG. 5 , the outer circumference of the positioning shaft 520 is provided with four cutting surfaces 521, and the four cutting surfaces 521 are evenly spaced around the circumference. And the cutting surface 521 extends along the length direction of the positioning shaft 520. The provision of the cutting surface 521 can ensure that when the positioning shaft 520 is inserted into the sleeve 511 or the bushing, only the position of the outer circumference of the positioning shaft 520 that is not the cutting surface 521 contacts the sleeve 511 or the bushing, and the cutting surface 521 will not contact the inner side wall of the bushing or the inner side wall of the sleeve 511, thereby facilitating the positioning shaft 520 to be separated from the bushing or the sleeve 511.

In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims (10)

1. A positioning tool for a connecting frame, characterized by comprising: The base is provided with a first positioning structure, wherein the first positioning structure is arranged between the two side panels; Two limit seats are respectively arranged on both sides of the base in the width direction; the limit seats are arranged on the opposite sides of the two side plates, and the limit seats include contact wheels, which abut against the side plates; the limit seats cooperate with the first positioning structure to pre-position the side plates; The supporting assembly is arranged between the two side plates, and the two ends of the supporting assembly are respectively against the two side plates; A clamping assembly, with two ends respectively connected to the two side panels; the clamping assembly cooperates with the supporting assembly to fix the position of the side panels in the width direction of the base; A positioning assembly is installed on the base and is used to position the side plate in the length direction of the base. 2. A positioning fixture for a connecting frame according to claim 1, characterized in that: the clamping assembly includes a center rod and two clamping members, the two clamping members are respectively connected to the two ends of the center rod, and the two clamping members are respectively connected to the two side plates. 3. A positioning fixture for a connecting frame according to claim 2, characterized in that: the clamping piece is provided with a slot, a side wall of the slot is provided with a locking screw hole, and the locking screw hole is connected with a locking bolt. 4. A positioning tool for a connecting frame according to claim 1, characterized in that: a plurality of the contact wheels are provided, and the plurality of contact wheels are arranged at intervals along the vertical direction and/or the horizontal direction. 5. A positioning fixture for a connecting frame according to claim 1, characterized in that the two limiting seats can move relatively and be fixed. 6. A positioning tool for a connecting frame according to claim 1, characterized in that: the positioning component includes a positioning seat, and the positioning seat is penetrated by a positioning shaft; the positioning shaft can pass through the first connecting hole or the second connecting hole of the side plate to position the side plate in the length direction of the base. 7. A positioning fixture for a connecting frame according to claim 6, characterized in that: the positioning seat is provided with a positioning hole for the positioning shaft to pass through, a shaft sleeve is installed in the positioning hole, and the positioning shaft passes through the shaft sleeve. 8. A positioning fixture for a connecting frame according to claim 6, characterized in that a bushing is sleeved on the end of the positioning shaft, and the bushing is detachably connected to the positioning shaft. 9. A positioning fixture for a connecting frame according to claim 7, characterized in that: a cutting surface is provided on the outer peripheral surface of the positioning shaft; and the positioning shaft passing through the shaft sleeve has a spacing between the cutting surface and the inner side wall of the shaft sleeve. 10. A positioning fixture for a connecting frame according to claim 1, characterized in that it also includes a second positioning structure, wherein the second positioning structure is disposed at one end of the base, and the second positioning structure is used to support and position the end of the side plate.