CN214024313U

CN214024313U - Fixing clamp for accurate welding of steel member

Info

Publication number: CN214024313U
Application number: CN202023107789.0U
Authority: CN
Inventors: 廖国新; 冯锐明; 李满培
Original assignee: Foshan Jinruili Furniture Co ltd
Current assignee: Foshan Jinruili Furniture Co ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-08-24
Anticipated expiration: 2030-12-21

Abstract

The application relates to the field of clamps, in particular to a fixing clamp for accurately welding a steel member, which comprises a chassis, wherein the chassis is provided with a first positioning mechanism for positioning a middle supporting part and a second positioning mechanism for positioning a supporting leg; the first positioning mechanism comprises a supporting column arranged in the center of the chassis and a pressing structure arranged on one side of the chassis and used for pressing the middle supporting part; the second positioning mechanism comprises a plurality of groups of supporting leg positioning structures which are uniformly distributed around the periphery of the supporting column and are arranged on the supporting column. This application can improve the accurate work efficiency who welds at the mid-span portion periphery side of supporting legs.

Description

Fixing clamp for accurate welding of steel member

Technical Field

The application relates to the field of clamps, especially, relate to a steel member is mounting fixture for accurate welding.

Background

The chair is a piece of daily-life furniture and generally comprises three parts, namely chair legs, a chair seat and a chair back. Wherein, the chair foot is the basis of whole chair, directly influences the whole stable performance of chair.

At present, for improving the whole stability ability and the load-carrying capacity of chair, disclose a chair foot among the correlation technique, refer to fig. 1, the chair foot includes mid-support portion 12, the top of mid-support portion 12 is equipped with the connecting plate 11 of being connected with the seat support, the periphery side equipartition of mid-support portion 12 sets up a plurality of supporting legss 2, supporting legss 2 is close to the one end welded fastening of mid-support portion 12 and is at the lateral wall of mid-support portion 12, thereby make a plurality of supporting legss 2 form loudspeaker form and support, be favorable to improving the stability ability of chair foot.

In the production of the chair leg, the traditional welding method is to manually align and then weld. However, when the chair leg is welded by the welding method, in order to uniformly distribute each supporting leg 2 or to keep the bottoms of a plurality of supporting legs 2 in the same horizontal state, repeated measurement and positioning are required, and the problem of low working efficiency exists.

SUMMERY OF THE UTILITY MODEL

In order to improve the work efficiency of supporting legs equipartition welding at mid-span portion periphery side, this application provides a steel member is mounting fixture for accurate welding.

The application provides a pair of accurate for welding mounting fixture of steel member adopts following technical scheme:

a fixing clamp for accurate welding of a steel member comprises a chassis, wherein the chassis is provided with a first positioning mechanism for positioning an intermediate supporting part and a second positioning mechanism for positioning a supporting leg; the first positioning mechanism comprises a supporting column arranged in the center of the chassis and a pressing structure arranged on one side of the chassis and used for pressing the middle supporting part; the second positioning mechanism comprises a plurality of groups of supporting leg positioning structures which are uniformly distributed around the periphery of the supporting column and are arranged on the supporting column.

Through adopting above-mentioned technical scheme, set up first positioning mechanism and second positioning mechanism on the chassis, first positioning mechanism fixes a position the intermediate strut post, second positioning mechanism fixes a position the supporting legs, because the position of a plurality of groups of supporting legs location structure has been fixed among the second positioning mechanism, consequently, when needs fix a position the supporting legs to the intermediate strut portion, only need according to supporting legs location structure install the supporting legs can, need not to measure repeatedly, consequently, be favorable to improving the work efficiency of welding the supporting legs equipartition at intermediate strut portion periphery side.

Preferably, the first positioning mechanism further comprises a plurality of support rods arranged on the periphery side of the chassis, and the support leg positioning structures and the support rods are arranged in a staggered mode.

By adopting the technical scheme, the first positioning mechanism further comprises a support rod, and the support rod can be used for bearing a connecting plate connected with the middle supporting part; the support rod and the supporting leg positioning structure are arranged in a staggered mode, so that the supporting leg cannot be obstructed in positioning.

Preferably, the first positioning mechanism further comprises a positioning column arranged at one end, far away from the chassis, of the supporting column, the central axis of the positioning column coincides with the central axis of the supporting column, and the positioning column is matched with a central hole formed in the middle of the middle supporting part.

Through adopting above-mentioned technical scheme, set up the reference column on the support column, the central hole looks adaptation that the reference column and middle supporting part middle part were seted up, when installing middle supporting part, can slide the reference column in the central hole of middle supporting part, be favorable to fixing a position middle supporting part fast.

Preferably, the supporting leg positioning structure comprises a positioning block arranged on the outer peripheral side of the supporting column, the positioning block is provided with a positioning groove for positioning the supporting leg, and the positioning block is provided with a limiting component for limiting the supporting leg in the positioning groove.

Through adopting above-mentioned technical scheme, place the supporting legs in the constant head tank, realize the preliminary location of supporting legs, then further spacing to the supporting legs through spacing subassembly, be favorable to the periphery side of stably locating at the intermediate strut portion with the supporting legs.

Preferably, the limiting assembly comprises a screw rod arranged on the positioning block, the screw rod is positioned on one side of the positioning groove, and a pressing strip is matched with the screw rod in a threaded manner.

By adopting the technical scheme, the pressing strip is rotated, so that the pressing strip is perpendicular to the supporting legs, and at the moment, the pressing strip can limit the supporting legs to be separated from the positioning grooves, and the improvement of the positioning stability of the supporting legs is facilitated.

Preferably, the second positioning mechanism further comprises a plurality of terminal positioning members disposed on the chassis, and the terminal positioning members are disposed corresponding to the supporting leg positioning structures.

Through adopting above-mentioned technical scheme, second positioning mechanism still includes terminal setting element, and terminal setting element can be kept away from the supporting legs the one end of mid-support portion spacing in terminal setting element to reduced the possibility that the supporting legs took place to slide, be favorable to making the supporting legs be close to the one end of mid-support portion and laminate all the time at the periphery side of mid-support portion, thereby improve welded stability.

Preferably, the fixing clamp further comprises a supporting seat located below the base plate, a connecting shaft is fixed on the supporting seat, the base plate is located on one side, away from the supporting seat, of the connecting shaft, and the base plate and the connecting shaft rotate around a central shaft of the connecting shaft.

Through adopting above-mentioned technical scheme, the chassis rotates with the connecting axle to be connected, after the welding of one of them supporting legs is accomplished, can rotate the chassis, with the supporting legs on other positions rotate to make things convenient for the welded position on to the periphery side of middle support portion is welded to the supporting legs on other positions.

Preferably, one side of the supporting seat, which is far away from the connecting shaft, is connected with a lifting adjusting structure for adjusting the height of the supporting seat.

Through adopting above-mentioned technical scheme, the lift adjustment structure can be used for adjusting the height of supporting seat, and then adjusts mounting fixture's height, is favorable to the high different people of adaptation to weld the work piece.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the chassis is provided with a first positioning mechanism and a second positioning mechanism, the first positioning mechanism positions the middle support column, the second positioning mechanism positions the support legs, and the positions of a plurality of groups of support leg positioning structures in the second positioning mechanism are fixed, so that when the support legs are required to be positioned on the middle support part, the support legs only need to be installed according to the support leg positioning structures, repeated measurement is not required, and the work efficiency of uniformly welding the support legs on the outer peripheral side of the middle support part is improved;

2. the positioning column is arranged on the supporting column and is matched with a central hole formed in the middle of the middle supporting part, and when the middle supporting part is installed, the positioning column can slide into the central hole of the middle supporting part, so that the middle supporting part can be positioned quickly;

3. the pressing strip is rotated to enable the pressing strip to be perpendicular to the supporting legs, and at the moment, the pressing strip can limit the problem that the supporting legs are separated from the positioning grooves, so that the positioning stability of the supporting legs is improved;

4. the chassis is rotatably connected with the connecting shaft, after welding of one supporting leg is completed, the chassis can be rotated, and the supporting legs at other positions are rotated to positions convenient for welding, so that the supporting legs at other positions are welded to the outer peripheral side of the middle supporting part;

5. the lifting adjusting structure can be used for adjusting the height of the supporting seat, so that the height of the fixing clamp is adjusted, and the workpiece can be welded by people with different adaptation heights.

Drawings

Fig. 1 is a schematic structural view of a chair foot in the related art.

FIG. 2 is a schematic overall structure diagram of a fixing clamp for accurately welding steel members in the embodiment of the present application.

Fig. 3 is a partially enlarged view of a position a in fig. 2.

Description of reference numerals: 11. a connecting plate; 12. a middle support part; 121. a central bore; 2. supporting legs; 3. a supporting seat; 31. a hydraulic cylinder; 4. a connecting shaft; 5. a chassis; 61. a support pillar; 62. a support bar; 63. a support frame; 64. a first rotating lever; 651. a hinge portion; 652. a pressing part; 661. a connecting portion; 662. a pressing part; 67. a pressing member; 71. positioning blocks; 711. positioning a groove; 72. a screw; 73. layering; 74. and (5) positioning the frame.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

Two workpieces to be welded in the present application are shown in fig. 1, wherein the first workpiece includes a connecting plate 11 connected with the seat and arranged in a rectangular shape, and an intermediate support portion 12 fixed at the middle position of the connecting plate 11, and a central hole 121 is formed in the middle of the intermediate support portion 12 along the axial direction thereof. The second workpiece is a supporting leg 2, one end of the supporting leg 2 is provided with an inclined plane which is attached to the outer peripheral side of the middle supporting part 12, and the other end of the supporting leg 2 is a plane which is parallel to the connecting plate 11.

The embodiment of the application discloses a fixing clamp for accurate welding of a steel member for welding the supporting legs 2 to the outer peripheral side of the middle supporting part 12 to form a chair leg with good bearing performance.

Referring to fig. 2, the fixing clamp includes a supporting seat 3, a connecting shaft 4 is fixedly connected to one side of the supporting seat 3, a chassis 5 is rotatably connected to one end of the connecting shaft 4 away from the supporting seat 3, and a central axis of the connecting shaft 4 coincides with a central axis of the chassis 5. The chassis 5 is provided with a first positioning mechanism and a second positioning mechanism, the first positioning mechanism is used for positioning the first workpiece, the second positioning mechanism is used for positioning the second workpiece, and the first workpiece and the second workpiece are positioned through the first positioning mechanism and the second positioning mechanism, so that the second workpiece can be welded and fixed on the first workpiece.

Specifically, referring to fig. 2, the first positioning mechanism includes a supporting column 61 for supporting the intermediate support portion 12, the supporting column 61 is fixedly disposed at a central position of the chassis 5, and central axes of the chassis 5, the supporting column 61 and the intermediate support portion 12 are overlapped, which is beneficial to improving stability of the first workpiece. The chassis 5 is uniformly provided with a plurality of support rods 62 on the outer periphery of the support column 61, the height of each support rod 62 is higher than that of the support column 61, and the height difference between the support column 61 and the support rod 62 is equal to that of the middle support part 12. In this embodiment, the four support rods 62 are taken as an example, the four support rods 62 surround to form a rectangle, and the area of the rectangle surrounded by the four support rods 62 is smaller than the area of the connecting plate 11, so that the four support rods 62 can stably support the connecting plate 11.

In order to realize the stable positioning of the first workpiece, the first positioning mechanism further comprises a pressing structure for pressing the first workpiece. Referring to fig. 2, in particular, the pressing structure includes a supporting frame 63 disposed on the chassis 5 and located on one side of the supporting rod 62, and one end of the supporting frame 63 away from the chassis 5 is provided with a pressing assembly. Wherein, the compressing assembly comprises a first rotating rod 64, a second rotating rod and an arm-wrestling rod. One end of the first rotating rod 64 is hinged to the supporting frame 63, the second rotating rod comprises a hinge portion 651 and a pressing portion 652 which are integrally formed and vertically connected, one end of the hinge portion 651 is also hinged to the supporting frame 63, and the first rotating rod 64 and the second rotating rod are turned over on the same plane. The snapping rod comprises a connecting part 661 and a pressing part 662 which are integrally formed, one end, close to the pressing part 662, of the connecting part 661 is hinged to one end, far away from the supporting frame 63, of the first rotating rod 64, one end, far away from the pressing part 662, of the connecting part 661 is hinged to one end, far away from the supporting frame 63, of the hinging part 651, and the snapping rod, the first rotating rod 64 and the second rotating rod are turned over on the same plane. In this embodiment, the pressing part 67 is fixedly connected to one end of the pressing part 652 far away from the hinge part 651.

During workpiece mounting, the snapping rods are broken off, so that the pressing pieces 67 move in the direction away from the supporting rods 62, then the connecting plates 11 of the first workpieces are placed on the four supporting rods 62, the middle supporting portions 12 of the first workpieces are located above the supporting columns 61, then the snapping rods are broken off reversely, so that the pressing pieces 67 press the connecting plates 11 onto the supporting rods 62, and positioning of the first workpieces can be achieved.

Referring to fig. 1 and 2, in order to realize the fast positioning of the first workpiece, in this embodiment, a positioning column (not shown) is disposed at one end of the supporting column 61 away from the chassis 5, a central axis of the positioning column coincides with a central axis of the supporting column 61, and the positioning column is inserted into the central hole 121 of the middle supporting portion 12 in a sliding manner, so as to realize the fast positioning of the first workpiece.

Referring to fig. 2 and 3, the second positioning mechanism includes a plurality of sets of supporting leg positioning structures uniformly distributed on the supporting column 61 around the circumference of the supporting column 61, in this embodiment, the supporting leg positioning structures take four sets as an example, and the four sets of supporting leg positioning structures and the four supporting rods 62 are arranged in a staggered manner.

The supporting leg positioning structure comprises a positioning block 71 fixed on the outer side wall of the supporting column 61, a positioning groove 711 is formed in the positioning block 71, the supporting leg 2 can be positioned by the positioning groove 711, and one end, close to the middle supporting portion 12, of the supporting leg 2 is attached to the outer peripheral side of the middle supporting portion 12. In order to prevent the supporting leg 2 from separating from the positioning groove 711, in this embodiment, the positioning block 71 is provided with a limiting component at one side of the positioning groove 711 for limiting the supporting leg 2 in the positioning groove 711. The limiting assembly comprises a screw rod 72 arranged on the positioning block 71, and a pressing strip 73 is matched with the screw rod 72 in a threaded mode. Through rotating the pressing strip 73, the supporting rod 62 is pressed in the positioning groove 711 by the pressing strip 73, and the installation stability of the supporting leg 2 can be improved.

In addition, in order to further improve the positioning stability of the supporting member, in this embodiment, four end positioning members for positioning one end of the supporting leg 2 away from the middle supporting portion 12 are disposed on the periphery of the chassis 5, and the four end positioning members correspond to the four sets of supporting leg positioning structures one to one. Wherein, the end positioning piece is specifically the locating frame 74, and the locating frame 74 can be spacing in the locating frame 74 with the one end that the supporting legs 2 kept away from the intermediate support portion 12, and at this moment, the supporting legs 2 can't take place to slide to can make one side that the supporting legs 2 is close to the intermediate support portion 12 laminate all the time at the periphery side of the intermediate support portion 12.

Referring to fig. 2, in order to enable people with different heights to conveniently weld the second workpiece to the first workpiece, in this embodiment, one side of the supporting seat 3 departing from the connecting shaft 4 is connected with a lifting adjusting structure for adjusting the height of the supporting seat 3. Wherein, the lift adjustment structure can be pneumatic cylinder 31, electron telescopic link etc. and in this embodiment, the lift adjustment structure uses pneumatic cylinder 31 as an example, and the piston rod and the supporting seat 3 fixed connection of pneumatic cylinder 31.

The implementation principle of the fixing clamp for accurate welding of the steel member in the embodiment of the application is as follows: during work, the snapping rods are broken off, so that the pressing pieces 67 move in the direction away from the supporting rods 62, then the connecting plates 11 of the first workpiece are placed on the four supporting rods 62, the middle supporting parts 12 of the first workpiece are located above the supporting columns 61, then the snapping rods are broken off reversely, so that the pressing pieces 67 press the connecting plates 11 on the supporting rods 62, and therefore the first workpiece can be positioned; then, the four supporting legs 2 are respectively inserted into the four positioning grooves 711, so that one ends of the supporting legs 2, which are close to the middle supporting part 12, are attached to the outer side wall of the middle supporting part 12, then the pressing strips 73 are rotated, so that the supporting legs 2 are pressed in the positioning grooves 711 by the pressing strips 73, the second workpiece can be positioned, and then the second workpiece is manually welded and fixed on the outer peripheral side of the middle supporting part 12 of the first workpiece.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a fixing clamp for accurate welding of steel member which characterized in that: the device comprises a chassis (5), wherein the chassis (5) is provided with a first positioning mechanism for positioning a middle supporting part (12) and a second positioning mechanism for positioning a supporting leg (2); the first positioning mechanism comprises a supporting column (61) arranged in the center of the chassis (5) and a pressing structure arranged on one side of the chassis (5) and used for pressing the middle supporting part (12); the second positioning mechanism comprises a plurality of groups of supporting leg positioning structures which are uniformly distributed around the circumferential side of the supporting column (61) and arranged on the supporting column (61).

2. The fixing clamp for the accurate welding of the steel member according to claim 1, characterized in that: the first positioning mechanism further comprises a plurality of supporting rods (62) arranged on the outer peripheral side of the chassis (5), and the supporting leg positioning structures and the supporting rods (62) are arranged in a staggered mode.

3. The fixing clamp for the accurate welding of the steel member according to claim 1, characterized in that: the first positioning mechanism further comprises a positioning column arranged at one end, far away from the chassis (5), of the supporting column (61), wherein the central shaft of the positioning column coincides with the central shaft of the supporting column (61), and the positioning column is matched with a central hole (121) formed in the middle of the middle supporting part (12).

4. The fixing clamp for the accurate welding of the steel member according to claim 1, characterized in that: the supporting leg positioning structure comprises a positioning block (71) arranged on the outer peripheral side of the supporting column (61), the positioning block (71) is provided with a positioning groove (711) used for positioning the supporting leg (2), and the positioning block (71) is provided with a limiting component used for limiting the supporting leg (2) in the positioning groove (711).

5. A fixing clamp for accurate welding of steel members according to claim 4, characterized in that: the limiting assembly comprises a screw rod (72) installed on the positioning block (71), the screw rod (72) is located on one side of the positioning groove (711), and a pressing strip (73) is matched with the screw rod (72) in a threaded mode.

6. The fixing clamp for the accurate welding of the steel member according to claim 1, characterized in that: the second positioning mechanism further comprises a plurality of tail end positioning pieces arranged on the chassis (5), and the tail end positioning pieces are arranged corresponding to the supporting leg positioning structures.

7. The fixing clamp for the accurate welding of the steel member according to claim 1, characterized in that: the fixing clamp further comprises a supporting seat (3) located below the base plate (5), a connecting shaft (4) is fixed on the supporting seat (3), the base plate (5) is located on one side, away from the supporting seat (3), of the connecting shaft (4), and the base plate (5) and the connecting shaft (4) rotate around the central shaft of the connecting shaft (4).

8. The fixing clamp for the accurate welding of the steel member according to claim 7, characterized in that: one side of the supporting seat (3) departing from the connecting shaft (4) is connected with a lifting adjusting structure for adjusting the height of the supporting seat (3).