Sheet metal part welding tool

Abstract

The utility model relates to the technical field of sheet metal part tools, in particular to a sheet metal part welding tool which comprises a movable frame, the long edge direction of the movable frame is defined as the front-back direction, the short edge direction of the movable frame is defined as the left-right direction, the two ends of the movable frame are connected to a fixed frame in a pivoted mode through connecting rods and bearing pieces, and the movable frame and the fixed frame are each of a U-shaped structure. A rotary driving part is arranged on one side of the movable frame in the front-back direction, the output end of the rotary driving part penetrates through the fixed frame from outside to inside to be connected with a connecting rod on the movable frame, a clamping part is arranged on the movable frame, and the clamping part is provided with an opening and closing clamping jaw extending to the outer side area of the movable frame. A clamping space matched with a metal plate workpiece is formed on the inner side of the opening and closing clamping jaw, and a rotary positioning device is arranged between the connecting rod on the movable frame and the fixed frame. The tool clamping device can solve the problems that when some existing sheet metal parts are welded through a tool clamping device, rotation is inconvenient, and the workload is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet metal tooling, in particular to a sheet metal welding tooling. Background Art

[0002] Sheet metal is a comprehensive cold processing technology for thin metal plates (usually less than 6mm), including shearing, punching / cutting / combining, folding, welding, riveting, splicing, forming (such as car body), etc. Its most notable feature is that the thickness of the same part is consistent.

[0003] Products processed by sheet metal technology are called sheet metal parts. Sheet metal parts have the characteristics of light weight, high strength, conductivity (can be used for electromagnetic shielding), low cost, and good mass production performance. They have been widely used in the fields of electronics, communications, automobile industry, medical equipment, etc. Sheet metal is an indispensable component. The main purpose of the fixture is to quickly and accurately position the workpiece and appropriately support and maintain it, so that all workpieces produced on the same fixture are fixed within a specific range to ensure the precision and interchangeability of the product.

[0004] Sheet metal parts often need to be welded during the processing process. When welding, sheet metal parts often need to be welded from multiple different angles. However, it is not convenient to rotate the sheet metal parts after clamping them using the current conventional tooling clamping device. This increases the workload of maintaining a specific angle of the sheet metal parts during welding. For this reason, we propose a tooling for sheet metal welding to solve the above problem. Utility Model Content

[0005] The utility model provides a sheet metal welding tool, which can solve the problem that some existing sheet metal parts are inconvenient to rotate when the tool is welded using a tool clamping device, thereby increasing the workload.

[0006] The utility model is achieved in this way:

[0007] A sheet metal welding tool comprises a movable frame, wherein the long side direction of the movable frame is defined as the front-to-back direction, and the short side direction of the movable frame is defined as the left-to-right direction. The front and rear ends of the movable frame are pivotally connected to a fixed frame through connecting rods and bearing members, and the connecting rod serves as the rotation center axis of the movable frame relative to the fixed frame. The movable frame and the fixed frame are both "U"-shaped structures, and constitute a double-layer structure arranged inside and outside. A rotating driving member is provided on one side of the movable frame in the front-to-back direction, and the output end of the rotating driving member passes through the fixed frame from the outside to the inside and is connected to the connecting rod on the movable frame. A clamping member is provided on the movable frame, and the clamping member has an opening and closing jaw extending to the outer area of ​​the movable frame, and the inner side of the opening and closing jaw forms a clamping space adapted to the sheet metal workpiece, and a rotating positioning device is provided between the connecting rod on the movable frame and the fixed frame.

[0008] Based on the above technical solution, the movable frame is composed of a first bottom plate and a first side plate to form a "U"-shaped structure. The two first side plates are vertically arranged at the two ends of the first bottom plate in the front and rear directions, and the bottom of the first side plate is detachably connected to the top surface of the first bottom plate.

[0009] Based on the above technical solution, a rib plate is provided between the first bottom plate and the first side plate, and the rib plate is a "U"-shaped structure. The bottom of the rib plate is connected to the top surface of the first bottom plate, and the front and rear side walls of the rib plate are connected to the inner side walls of the two first side plates located on the front and rear sides of the first bottom plate.

[0010] On the basis of the above technical solution, a plurality of first strip holes are provided on the first bottom plate, and the first strip holes are used to cooperate with the bolts to connect the clamping parts.

[0011] On the basis of the above technical solution, a positioning boss is provided on the first bottom plate at one side of the first strip hole.

[0012] Based on the above technical solution, the fixing frame is composed of a second bottom plate and a second side plate to form a "U"-shaped structure, and two "L"-shaped second side plates are relatively arranged at the two ends of the second bottom plate in the front and rear directions, and the bottom of the second side plate is detachably connected to the top surface of the second bottom plate.

[0013] Based on the above technical solution, the rotation positioning device includes a follower and a rotation sensor. The follower is arranged on the outer end of the connecting rod on the movable frame. The follower has a signal rod perpendicular to the axial direction of the connecting rod. The signal rod can rotate with the movable frame. The rotation sensor is arranged on the outer wall of the fixed frame corresponding to the rotation path of the signal rod.

[0014] On the basis of the above technical solution, the clamping member includes a cylinder, the transmission output end of the cylinder is connected to two opening and closing sliders that can move closer to or away from each other, the outer end of each opening and closing slider is provided with a clamping claw, the clamping claw is provided with an abutment member for abutting the sheet metal workpiece during clamping, the outer end of the abutment member is provided with a limiting plate, the opening and closing slider is provided with a positioning block on the inner side of the clamping claw, and the inner area of ​​the positioning block, the abutment member and the limiting plate constitute a clamping space for tooling to clamp the sheet metal workpiece.

[0015] On the basis of the above technical solution, a holding sensor is provided on the inner side wall of the abutment member.

[0016] Compared with the prior art, the utility model has at least the following advantages:

[0017] The utility model provides a fixed frame and a movable frame which are stacked inside and outside, and the two use connecting rods and bearing parts to form a pivot structure, and the two can rotate relative to each other. A clamping part for clamping the sheet metal workpiece in the tooling is provided on the movable frame. The relative rotation of the fixed frame and the movable frame allows the sheet metal workpiece in the tooling to be flexibly adjusted in angle. In addition, the sheet metal workpiece in the tooling is actively rotated and accurately rotated at an angle by means of a rotating drive part and a rotating positioning device. This can solve the problem that some existing sheet metal parts are inconvenient to rotate when the tooling is welded using a tooling clamping device, which increases the workload. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of a sheet metal welding tool in one embodiment;

[0020] Figure 2 for Figure 1 Side view of

[0021] Figure 3 for Figure 1 A schematic diagram of the structure of the movable frame and the fixed frame;

[0022] Figure 4 for Figure 1 A schematic diagram of the structure of the middle clamping member;

[0023] Figure 5 It is a top view of the assembly state of the double sheet metal welding tooling in one embodiment.

[0024] Markings in the figure: 1. movable frame; 11. first bottom plate; 12. first side plate; 13. rib plate; 14. first strip hole; 15. positioning boss; 2. fixed frame; 21. second bottom plate; 22. second side plate; 23. travel limit column; 3. rotation drive member; 31. mounting seat; 4. clamping member; 41. cylinder; 42. opening and closing slider; 43. clamping claw; 44. abutment member; 45. limit plate; 46. pressure sensor; 47. positioning block; 48. guide rail; 5. follower; 51. signal rod; 52. second strip hole; 6. rotation sensor; a. sheet metal workpiece. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.

[0026] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to an element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0028] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] See also Figures 1 to 4 The present embodiment discloses a sheet metal welding tool, comprising a movable frame 1, a fixed frame 2, a rotating driving member 3, a clamping member 4 and a rotating positioning device, which can be used for tool clamping of a sheet metal workpiece a to be welded, and can perform flexible and precise angle control during the tool clamping process to meet the angle change requirements of some sheet metal workpieces a during welding.

[0030] The long side direction of the movable frame 1 is defined as the front-to-back direction, and the short side direction of the movable frame 1 is defined as the left-to-right direction.

[0031] The front and rear ends of the movable frame 1 are pivotally connected to a fixed frame 2 through a connecting rod and a bearing. The connecting rod serves as the central axis of rotation of the movable frame 1 relative to the fixed frame 2. The movable frame 1 and the fixed frame 2 are both "U"-shaped structures and form a double-layer structure arranged inside and outside. When in use, a flexible rotating structure can be formed with the help of the internal and external layered structures.

[0032] A rotating drive member 3 is provided on one side of the movable frame 1 in the front-to-back direction. The output end of the rotating drive member 3 passes through the fixed frame 2 from the outside to the inside and is connected to the connecting rod on the movable frame 1, so as to actively control the movable frame 1 to rotate relative to the fixed frame 2. In this embodiment, the rotating drive member 3 specifically adopts a reduction motor, which is connected and fixed to the fixed frame 2 through a mounting seat 31.

[0033] refer to Figure 3 As shown, the movable frame 1 is composed of a first bottom plate 11 and a first side plate 12 to form a "U"-shaped structure. The two first side plates 12 are vertically arranged at both ends of the first bottom plate 11 in the front and rear directions. The bottom of the first side plate 12 is detachably connected to the top surface of the first bottom plate 11 (connected by bolt locking). The first side plate 12 is connected to the above-mentioned connecting rod and bearing member. Therefore, the connection structure between the first side plate 12 and the fixed frame 2 is relatively fixed, and the detachable structural mode between the first bottom plate 11 and the first side plate 12 enables the first bottom plate 11 to be replaced during operation, which is convenient for maintenance and debugging of the equipment.

[0034] Furthermore, a rib plate 13 is provided between the first bottom plate 11 and the first side plate 12, and the rib plate 13 is a "U"-shaped structure, the bottom of the rib plate 13 is connected to the top surface of the first bottom plate 11, and the front and rear side walls of the rib plate 13 are connected to the inner side walls of the two first side plates 12 located at the front and rear sides of the first bottom plate 11. The provision of the rib plate 13 can greatly improve the structural strength of the movable frame 1.

[0035] The first bottom plate 11 is provided with a plurality of first strip holes 14, which are used to connect the clamping member 4 with bolts, and the first strip holes 14 can help flexibly fine-adjust the assembly position of the clamping member 4. In order to make the assembly position of the clamping member 4 on the movable frame 1 easier and more convenient, and to enable quick pre-positioning and installation, the first bottom plate 11 is provided with a plurality of positioning bosses 15 on one side of the first strip holes 14, and the positioning bosses 15 and the first bottom plate 11 are an integrated structure.

[0036] In this embodiment, the fixed frame 2 is composed of a second bottom plate 21 and a second side plate 22 to form a "U"-shaped structure. Two "L"-shaped second side plates 22 are relatively arranged at the two ends of the second bottom plate 21 in the front-rear direction. The bottom of the second side plate 22 is detachably connected to the top surface of the second bottom plate 21 (connected by bolt locking). Specifically, the above-mentioned connecting rod and bearing member are arranged between the first side plate 12 and the second side plate 22. Since the fixed frame 2 and the movable frame 1 are both "U"-shaped structures, they have a relatively wide open structure, so that the rotation space of the movable frame 1 is more relaxed and free, and has a larger travel space.

[0037] In this embodiment, the movable frame 1 is provided with two clamping members 4 spaced apart from each other, and the clamping members 4 serve as a tooling clamping structure adapted to the sheet metal workpiece a. The clamping member 4 has an opening and closing jaw 43 extending to the outer area of ​​the movable frame 1, and the inner side of the opening and closing jaw 43 forms a clamping space adapted to the sheet metal workpiece a. Specifically, the clamping member 4 includes a cylinder 41, and the transmission output end of the cylinder 41 is connected to two opening and closing sliders 42 that can move closer to or away from each other, and the outer end of each opening and closing slider 42 is provided with a clamping jaw 43, and the clamping jaw 43 is vertically arranged to the opening and closing slider 42, so that the clamping opening forms a "U" structure, and the clamping jaw 43 is provided with an abutment member 44 for abutting the sheet metal workpiece a during clamping, and the abutment member 44 is installed on the outer end of the clamping jaw 43 by bolts, and the abutment member 44 is specifically an elastic contact structure made of rubber, which covers the core of the clamping jaw 43. The inner area of ​​the positioning block 47, the abutment 44 and the limiting piece 45 constitute a clamping space, which can limit the front, back, left, right and bottom of the sheet metal workpiece a, and is used for accurate and safe tooling to clamp the sheet metal workpiece a. In order to effectively control the clamping force, a pressure sensor 46 is provided on the inner wall of the abutment 44, and the pressure sensor 46 specifically adopts a pressure sensor.

[0038] Further, combined with Figure 2 As shown, a rotation positioning device is provided between the connecting rod on the movable frame 1 and the fixed frame 2. Specifically, the rotation positioning device includes a follower 5 and a rotation sensor 6. The follower 5 is provided at the outer end of the connecting rod on the movable frame 1. The main body of the follower 5 is a disc structure, and a plurality of second strip holes 52 are provided on the disc structure. The second strip holes 52 are arc-shaped through-hole structures, which enable the assembly angle between the follower 5 and the outer end of the connecting rod to be fine-adjusted. The follower 5 has a signal rod 51 perpendicular to the axial direction of the connecting rod, and the signal rod 51 can rotate with the movable frame 1. The rotation sensor 6 is provided on the outer wall of the fixed frame 2 corresponding to the rotation path of the signal rod 51. The rotation sensor 6 specifically adopts a U-shaped photoelectric sensor. When the signal rod 51 rotates to the detection area, it can trigger an in-position detection signal. It is electrically connected to the rotation drive 3, and can accurately control the tooling angle during welding of the sheet metal workpiece a.

[0039] Furthermore, a guide rail 48 is provided between the clamping jaw 43 and the opening and closing slider 42. The guide rail 48 is parallel to the opening and closing direction of the opening and closing slider 42. The clamping jaw 43 can slide linearly along the guide rail 48 and then be locked and fixed by means of bolts. This allows the assembly position of the clamping jaw 43 to be flexibly adjusted, thereby adjusting the distance between the two clamping jaws 43.

[0040] In order to prevent the sheet metal workpiece a from excessive rotation, the fixed frame 2 is further provided with a travel limit column 23 on one side of the movable frame 1, which is used to control the rotation of the clamping member 4 at a safety threshold angle after the movable frame 1 drives the clamping member 4 to rotate at a large angle.

[0041] In the specific implementation process, the clamping member 4 can stably clamp the sheet metal workpiece a to be welded, and the rotary driving member 3 and the rotary positioning device can accurately adjust the angle of the sheet metal workpiece a after tooling according to actual welding requirements.

[0042] In other embodiments, Figure 5 As shown, the two welding tools are used in combination to simultaneously perform welding of multiple groups of sheet metal workpieces a, thereby improving work efficiency.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sheet metal welding tool, characterized in that: The invention comprises a movable frame (1), wherein the long side direction of the movable frame (1) is defined as the front-to-back direction, and the short side direction of the movable frame (1) is defined as the left-to-right direction. The front and rear ends of the movable frame (1) are pivotally connected to a fixed frame (2) through a connecting rod and a bearing member, and the connecting rod serves as the rotation center axis of the movable frame (1) relative to the fixed frame (2). The movable frame (1) and the fixed frame (2) are both "U"-shaped structures, and form a double-layer structure arranged inside and outside. A rotating driving member (3) is arranged on one side of the movable frame (1) in the front-to-back direction, and the output end of the rotating driving member (3) passes through the fixed frame (2) from the outside to the inside and is connected to the connecting rod on the movable frame (1). A clamping member (4) is arranged on the movable frame (1), and the clamping member (4) has an opening and closing clamping claw (43) extending to the outer area of ​​the movable frame (1). The inner side of the opening and closing clamping claw (43) forms a clamping space adapted to a sheet metal workpiece (a). A rotating positioning device is arranged between the connecting rod on the movable frame (1) and the fixed frame (2).

2. A sheet metal welding tool according to claim 1, characterized in that: The movable frame (1) is composed of a first bottom plate (11) and a first side plate (12) to form a "U"-shaped structure. The two first side plates (12) are vertically arranged at both ends of the first bottom plate (11) in the front-rear direction. The bottom of the first side plate (12) is detachably connected to the top surface of the first bottom plate (11).

3. A sheet metal welding tool according to claim 2, characterized in that: A rib plate (13) is provided between the first bottom plate (11) and the first side plate (12); the rib plate (13) is a "U"-shaped structure; the bottom of the rib plate (13) is connected to the top surface of the first bottom plate (11); and the front and rear side walls of the rib plate (13) are connected to the inner side walls of the two first side plates (12) located on the front and rear sides of the first bottom plate (11).

4. A sheet metal welding tool according to claim 2 or 3, characterized in that: The first bottom plate (11) is provided with a plurality of first strip-shaped holes (14), and the first strip-shaped holes (14) are used to cooperate with bolts to connect the clamping member (4).

5. The sheet metal welding tool according to claim 4, characterized in that: A positioning boss (15) is provided on the first bottom plate (11) at one side of the first strip-shaped hole (14).

6. The sheet metal welding tool according to claim 1, characterized in that: The fixing frame (2) is composed of a second bottom plate (21) and a second side plate (22) to form a "U"-shaped structure, wherein two "L"-shaped second side plates (22) are arranged oppositely at the two ends of the second bottom plate (21) in the front-rear direction, and the bottom of the second side plate (22) is detachably connected to the top surface of the second bottom plate (21).

7. The sheet metal welding tool according to claim 1, characterized in that: The rotation positioning device comprises a follower (5) and a rotation sensor (6); the follower (5) is arranged on the outer end of a connecting rod on a movable frame (1); the follower (5) has a signal rod (51) perpendicular to the axial direction of the connecting rod; the signal rod (51) can rotate with the movable frame (1); and the rotation sensor (6) is arranged on the outer wall of the fixed frame (2) on a rotation path corresponding to the signal rod (51).

8. The sheet metal welding tool according to claim 1, characterized in that: The clamping member (4) comprises a cylinder (41), the transmission output end of the cylinder (41) is connected to two opening and closing slide blocks (42) that can move closer to or farther away from each other, a clamping claw (43) is arranged at the outer end of each opening and closing slide block (42), an abutting member (44) is arranged on the clamping claw (43) for abutting against the sheet metal workpiece (a) during clamping, a limiting plate (45) is arranged at the outer end of the abutting member (44), and a positioning block (47) is arranged on the inner side of the clamping claw (43) of the opening and closing slide block (42), and the inner side area of ​​the positioning block (47), the abutting member (44) and the limiting plate (45) constitute a clamping space for clamping the sheet metal workpiece (a) by tooling.

9. The sheet metal welding tool according to claim 8, characterized in that: A holding sensor (46) is provided on the inner side wall of the abutment member (44).

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