Clamping and positioning mechanism for metal product welding

Abstract

The utility model relates to the technical field of welding tools, in particular to a clamping and positioning mechanism for welding metal products, which comprises a pressing unit and a base, an object placing table is arranged in the central area of the top of the base, and a plurality of linear track grooves are formed in the top of the base and located on the periphery of the object placing table. The peripheral area of the storage table is divided into a plurality of mounting tables through the rail grooves, a plurality of mounting holes are formed in the mounting tables, the pressing unit is connected with the base through matching of fasteners and the mounting holes, the operation end of the pressing unit is provided with an abutting piece capable of moving up and down, and the abutting piece comprises a pressing block and a pressing rod which are fixedly connected. The pressing block is located at the bottom of the pressing rod, the pressing rod is connected with the pressing unit, and the bottom of the pressing unit located above the base is directly attached to the base or connected with the base in a clearance fit state through an adjusting piece. According to the utility model, the problem that the production cost is increased due to single and inflexible welding objects adapted to some existing tool clamps can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding tooling, in particular to a clamping and positioning mechanism for welding metal products. Background Art

[0002] Sheet metal is one of the common metal products. It is mainly a comprehensive cold processing technology for metal sheets (usually less than 6mm), including shearing, punching / cutting / combining, folding, welding, riveting, splicing, forming (such as car body), etc. Its notable feature is that the thickness of the same part is consistent. The products processed by sheet metal technology are called sheet metal parts.

[0003] The welding of many sheet metal products is also a very important link in their processing. Before the welding operation, the sheet metal parts to be welded need to be fixed with tooling. Due to the various structures of sheet metal parts and the fact that the same sheet metal parts are often divided into multiple sizes and specifications during production, many of the clamping positions of existing common tooling fixtures are fixed. In other words, each tooling fixture is only suitable for the welding tooling requirements of a single sheet metal part. This results in the need to configure many tooling fixtures to meet the production requirements of multiple sheet metal parts, which will greatly increase the investment cost of processing equipment, and the idle rate of tooling fixtures is high and they occupy storage space for a long time. Utility Model Content

[0004] The utility model provides a clamping and positioning mechanism for welding metal products, which can solve the problem that some existing tooling fixtures are only suitable for a single welding object, are not flexible enough and thus increase production costs.

[0005] The utility model is achieved in this way:

[0006] A clamping and positioning mechanism for welding metal products includes a clamping unit and a base, wherein the top central area of ​​the base is a storage table, and the top of the base is provided with a plurality of linear track grooves located on the periphery of the storage table, and the track grooves divide the peripheral area of ​​the storage table into a plurality of mounting tables, and the mounting tables are provided with a plurality of mounting holes, and the mounting holes are vertical countersunk hole structures with internal threads. The clamping unit is connected to the base through the cooperation of fasteners and the mounting holes, and the working end of the clamping unit is provided with an abutment that can move up and down, and the abutment includes a fixedly connected pressure block and a pressure rod, and the pressure block is located at the bottom of the pressure rod, and the pressure rod is connected to the clamping unit, and the bottom of the clamping unit located above the base is directly fitted with the base, or is connected with the base in a clearance fit state through an adjustment member.

[0007] Based on the above technical solution, the longitudinal section profile of the track groove is an inverted "T"-shaped structure, the bottom profile of the adjustment member is adapted to the track groove profile, and the adjustment member can move laterally along the track groove and be locked on the base by fasteners.

[0008] On the basis of the above technical solution, the adjusting member comprises an upper plate and a lower plate, the upper plate and the lower plate are connected by a connecting rod, the connecting rod is vertically arranged, and the lower plate and the connecting rod form a combined structure adapted to the contour of the track groove.

[0009] On the basis of the above technical solution, a plurality of vertical mounting through holes are provided on the upper plate, and the mounting through holes can be aligned with the mounting holes on the base to form a combined hole structure for locking and fixing the position of the adjusting member.

[0010] Based on the above technical solution, the mounting hole is also provided on the side wall of the base.

[0011] On the basis of the above technical solution, the pressure rod is a vertically arranged rod body structure, an outer surface of which is provided with an external thread structure, and the pressure rod is detachably connected to the clamping unit via a snap fastener.

[0012] On the basis of the above technical solution, a height adjustment structure is provided between the pressure rod and the buckle.

[0013] On the basis of the above technical solution, the pressing block is made of elastic material, a flange extending downward is provided at the bottom of the pressing block, a sink groove is formed inside the flange, and the sink groove is located directly below the pressing rod.

[0014] Based on the above technical solution, the pressure rod is provided with a limit platform near the bottom, which is a laterally protruding annular structure located on the outer surface of the pressure rod. The pressure block wraps the limit platform of the pressure rod and the area below it inside to form a limit connection structure.

[0015] Compared with the prior art, the utility model has at least the following advantages:

[0016] The utility model arranges a base as the bearing body of the tooling mechanism, and utilizes a plurality of mounting holes and track grooves on the base to connect and install a clamping unit, so that the installation position of the clamping unit is flexible and changeable, and the position can be quickly and conveniently adjusted according to the size and shape of the actual welding workpiece, and adjusting parts can be flexibly added to adjust the height of the holding point, thereby further extending the tooling flexibility from the plane to the space. This structure can utilize the flexible cooperation between multiple clamping units and share the same base to greatly improve the utilization rate of the device, which can solve the problem that some existing tooling fixtures are adapted to a single welding object, are not flexible enough and increase production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of a clamping and positioning mechanism for welding metal products in one embodiment;

[0019] Figure 2 for Figure 1 A top view of

[0020] Figure 3 is a structural schematic diagram of a first adjusting member equipped with a pressing unit;

[0021] Figure 4 for Figure 3 A partial enlarged view of middle A;

[0022] Figure 5 It is a cross-sectional view of the connection between the pressing block and the pressing rod;

[0023] Figure 6 It is a schematic structural diagram of a clamping and positioning mechanism for welding metal products in another embodiment.

[0024] Markings in the figure: 1. base; 11. mounting table; 12. storage table; 2. track groove; 3. mounting hole; 4. clamping unit; 5. abutment; 51. pressure block; 511. flange; 512. countersunk groove; 52. pressure rod; 521. limit table; 53. snap member; 531. claw; 54. positioning nut; a1. first adjusting member; a11. upper plate; a12. lower plate; a13. connecting rod; a14. mounting through hole; a2. second adjusting member. 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] Example 1: See Figures 1 to 5 This embodiment discloses a clamping and positioning mechanism for welding metal products, which is used to adapt to the tooling positioning of metal products during welding operations, especially sheet metal parts with complex and diverse structures.

[0030] The clamping and positioning structure specifically includes a rectangular structure base 1, the upper end surface of the base 1 is a horizontal end surface, and the top center area of ​​the base 1 is a storage table 12, which is used to place the welding workpiece.

[0031] The top of the base 1 is located outside the storage table 12 and is provided with four linear track grooves 2 that are staggered in a horizontal and vertical manner. The track grooves 2 divide the outer area of ​​the storage table 12 into eight mounting platforms 11. In this embodiment, the mounting platforms 11 and the storage tables 12 are both provided with a plurality of mounting holes 3. The plurality of mounting holes 3 are evenly distributed on the top section of the mounting platforms 11 or the storage tables 12. The mounting holes 3 are vertical countersunk structures with internal threads, which are used to cooperate with bolts for bolt connection to achieve the connection and fixation between the working parts and the base 1.

[0032] Four clamping units 4 are provided on the base 1, and the clamping unit 4 specifically includes a support, an operating rod, a holding rod, etc., which is the prior art. Its specific structure and working principle are not repeated here. The corresponding content in patent CN106112349B can be referred to. Those skilled in the art can select and implement from the prior art according to the actual working conditions.

[0033] In this embodiment, the clamping unit 4 is connected to the base 1 through the cooperation of the fasteners (bolts) and the mounting holes 3. The working end of the clamping unit 4 is provided with an abutment member 5 that can move up and down. The abutment member 5 includes a fixedly connected pressing block 51 and a pressing rod 52. The pressing block 51 is located at the bottom of the pressing rod 52. The pressing rod 52 is connected to the clamping unit 4. The bottom of the clamping unit 4 located above the base 1 is directly fitted with the base 1, or connected with the base 1 in a clearance fit state through an adjusting member. When in use, the clamping unit 4 can use manual operation to control the abutment member 5 to press and fix the welding workpiece.

[0034] The adjusting member in this embodiment includes a first adjusting member a1 and a second adjusting member a2. The pressing unit 4 can be connected to the base 1 through the first adjusting member a1 and the track groove 2, and can also be connected to the mounting platform 11 through the second adjusting member a2.

[0035] like Figure 1 or Figure 2 As shown, the longitudinal section of the track groove 2 is an inverted "T"-shaped structure, the bottom profile of the first adjusting member a1 is adapted to the profile of the track groove 2, and the first adjusting member a1 can move laterally along the track groove 2 and be locked on the base 1 by a fastener. Figure 3 As shown, the first adjusting member a1 includes an upper plate a11 and a lower plate a12 , and the upper plate a11 and the lower plate a12 are connected by a connecting rod a13 , and the connecting rod a13 is vertically arranged, and the lower plate a12 and the connecting rod a13 form a combined structure adapted to the profile of the track groove 2 .

[0036] Furthermore, the upper plate a11 is provided with a plurality of vertical mounting holes a14, which can be aligned with the mounting holes 3 on the base 1 to form a combined hole structure for locking and fixing the position of the adjusting member. When in use, the bolts can be inserted from top to bottom into the combined hole structure to complete the locking connection.

[0037] The second adjusting member a2 is an I-shaped bracket structure, and a mounting through hole a14 is also provided at its bottom for connecting to the base 1 , and a mounting hole 3 is provided at its top for connecting to the clamping unit 4 .

[0038] The first adjusting member a1 and the second adjusting member a2 have the same function, which is to increase the installation height of the clamping unit 4 and further adjust the height of the pressing point of the abutting member 5 on the workpiece.

[0039] Further, combined with Figure 5 As shown, the pressure rod 52 is a vertically arranged rod structure, and its outer surface is provided with an external thread structure. The pressure rod 52 is detachably connected to the pressing unit 4 through a buckle 53. Figure 3 and Figure 4As shown, the holding rod of the clamping unit 4 (the output end structure that can swing up and down when in use) has a longitudinal through hole, and the pressure rod 52 vertically passes through the longitudinal through hole. Two clips 53 are symmetrically sleeved on the pressure rod 52, and claws 531 are provided on both sides of the clips 53. The claws 531 make the clips 53 form an "n"-shaped structure, which can be stuck on the upper and lower ends of the holding rod. The two clips 53 are respectively locked and fixed by upper and lower positioning nuts 54 (the positioning nuts 54 are meshed with the external threads of the pressure rod 52), so that the pressure rod 52 is connected and fixed. It should be noted that in actual use, the installation height of the pressure rod 52 can be adjusted by means of the position of the positioning nuts 54, forming a height adjustment structure, and the height of the holding point can be finely adjusted.

[0040] Further, combined with Figure 5 As shown, the pressing block 51 is made of elastic material (rubber, plastic, etc.), and a flange 511 extending downward is provided at the bottom of the pressing block 51. A recessed groove 512 is formed inside the flange 511, and the recessed groove 512 is located directly below the pressing rod 52. This structure enables the pressing block 51 to have an elastic contact effect, reducing the wear on the welding workpiece during pressing. In addition, the flange 511 structure makes its bottom relatively soft, which can be deformed during abutment and pressing, thereby increasing the contact friction, preventing the workpiece from slipping, and improving the pressing effect. The recessed groove 512 is directly opposite to the pressing rod 52, so that after a certain degree of pressing force is applied, the pressing rod 52 can transmit the pressure to the workpiece more directly, further improving the pressing stability. In other words, a stable force is applied in the center, and the friction and anti-slip clamping effect is increased on the periphery.

[0041] Furthermore, the pressure rod 52 is provided with a limit platform 521 near the bottom, and the limit platform 521 is a transversely protruding annular structure located on the outer surface of the pressure rod 52. The pressure block 51 wraps the limit platform 521 of the pressure rod 52 and the area below it inside to form a limit connection structure. This structure makes the connection between the pressure block 51 and the pressure rod 52 tighter, and there will be no slipping or falling off, which improves the stability of use.

[0042] Example 2: Based on Example 1, Figure 6 As shown, in this embodiment, the mounting hole 3 is also provided on the side wall of the base 1, which makes full use of the structure of the base 1 so that the clamping unit 4 can also be connected and fixed on the side of the base 1, thereby increasing the basis for more diverse tooling position selection.

[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 clamping and positioning mechanism for welding metal products, comprising a clamping unit (4), characterized in that: The invention comprises a base (1), wherein the top center area of ​​the base (1) is a storage platform (12), and the top of the base (1) is provided with a plurality of linear track grooves (2) located on the periphery of the storage platform (12), and the track grooves (2) divide the peripheral area of ​​the storage platform (12) into a plurality of mounting platforms (11), and the mounting platforms (11) are provided with a plurality of mounting holes (3), and the mounting holes (3) are vertical countersunk structures with internal threads, and the clamping unit (4) is connected to the mounting holes (3) by fasteners. The base (1) is matched and connected, and the working end of the clamping unit (4) is provided with an abutment member (5) that can move up and down, and the abutment member (5) includes a fixedly connected pressure block (51) and a pressure rod (52), the pressure block (51) is located at the bottom of the pressure rod (52), and the pressure rod (52) is connected to the clamping unit (4), and the bottom of the clamping unit (4) located above the base (1) is directly in contact with the base (1), or is connected to the base (1) in a clearance fit state through an adjustment member.

2. A clamping and positioning mechanism for metal product welding according to claim 1, characterized in that: The longitudinal section profile of the track groove (2) is an inverted "T"-shaped structure, the bottom profile of the adjustment member is adapted to the profile of the track groove (2), and the adjustment member can be laterally moved along the track groove (2) and locked on the base (1) by a fastener.

3. A clamping and positioning mechanism for metal product welding according to claim 2, characterized in that: The adjusting member comprises an upper plate (a11) and a lower plate (a12), wherein the upper plate (a11) and the lower plate (a12) are connected via a connecting rod (a13), wherein the connecting rod (a13) is vertically arranged, and the lower plate (a12) and the connecting rod (a13) form a combined structure that is adapted to the profile of the track groove (2).

4. A clamping and positioning mechanism for welding metal products according to claim 3, characterized in that: The upper plate (a11) is provided with a plurality of vertical mounting through holes (a14), and the mounting through holes (a14) can be aligned with the mounting holes (3) on the base (1) to form a combined hole structure for locking and fixing the position of the adjusting member.

5. The clamping and positioning mechanism for metal product welding according to claim 1, characterized in that: The mounting hole (3) is also provided on the side wall of the base (1).

6. A clamping and positioning mechanism for welding metal products according to claim 1, characterized in that: The pressure rod (52) is a vertically arranged rod structure, and an external thread structure is provided on its outer surface. The pressure rod (52) is detachably connected to the pressing unit (4) via a snap-fit ​​piece (53).

7. A clamping and positioning mechanism for welding metal products according to claim 6, characterized in that: A height adjustment structure is provided between the pressure rod (52) and the buckle (53).

8. The clamping and positioning mechanism for metal product welding according to claim 1, characterized in that: The pressing block (51) is made of elastic material. A flange (511) extending downward is provided at the bottom of the pressing block (51). A sink groove (512) is formed inside the flange (511). The sink groove (512) is located directly below the pressing rod (52).

9. A clamping and positioning mechanism for welding metal products according to claim 8, characterized in that: The pressure rod (52) is provided with a limiting platform (521) near the bottom. The limiting platform (521) is a transversely outwardly protruding annular structure located on the outer surface of the pressure rod (52). The pressure block (51) wraps the limiting platform (521) of the pressure rod (52) and the area below it inside to form a limiting connection structure.

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