Limiting mechanism for sheet metal part welding jig

Abstract

The limiting mechanism comprises an electric cylinder, a telescopic head and a movable arm, the telescopic head is arranged at the upper end of the electric cylinder, a movable block is arranged at the upper end of the telescopic head, the front side and the rear side of the movable block are each provided with a set of lower embedding heads, lower sliding grooves are formed in the outer sides of the lower embedding heads, and the movable arm is arranged on the outer side of the lower sliding grooves. A fixed shaft is arranged in the middle of the movable arm, an inner bearing is arranged between the fixed shaft and the movable arm, an upper sliding groove is formed in the upper end of the movable arm, a positioning shaft is arranged in the upper sliding groove, and a movable seat is arranged on the rear side of the positioning shaft. The movable block and the lower end of the supporting frame can be protected, the positioning shaft and the lower embedding head can be conveniently limited and guided in the upper sliding groove and the lower sliding groove when the two sets of movable arms move, and the two sets of chucks are driven by the movable base to move along the path of the sliding base.

Description

Technical Field

[0001] The utility model belongs to the technical field of sheet metal welding and relates to a limiting mechanism for a sheet metal welding jig. Background Art

[0002] When welding sheet metal parts, it is necessary to ensure that the sheet metal parts will not move or deflect during the welding process. The limit device can fix the sheet metal parts in a specific position to ensure that the sheet metal parts will not move or deflect due to thermal deformation or force during the welding process, thereby ensuring the quality and accuracy of the welding. During the sheet metal welding process, if it is not properly limited, a series of problems may occur.

[0003] First, welding accuracy will be affected. Since sheet metal parts may move or shift during welding, the accuracy of the welding position cannot be guaranteed without limiting measures. This may result in uneven and weak welds, or even damage the welded structure.

[0004] Secondly, the welding quality will also be unstable. Sheet metal without position limit may deform during welding, resulting in the weld being not straight or twisted. This not only affects the aesthetics of the weld, but may also reduce the strength and durability of the weld.

[0005] In addition, the lack of restraints can also pose a safety hazard. During the welding process, if the sheet metal is not properly secured, it may tip over or move, posing a danger to operators and surrounding equipment.

[0006] At the same time, production efficiency will also be affected. Production efficiency may be reduced due to the need to spend more time to correct errors caused by limit problems. In addition, costs may also increase due to the need for more inspection and repair work.

[0007] Finally, the risk of equipment damage will also increase. If the sheet metal moves or deflects during the welding process, it may cause equipment damage. For example, if the welding head collides with the sheet metal, it may cause welding head damage or equipment failure. Therefore, there is an urgent need for a limit mechanism for sheet metal welding jigs to solve the above problems. Utility Model Content

[0008] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a limiting mechanism for a sheet metal welding fixture to solve the problems raised in the above-mentioned background technology.

[0009] The utility model is realized by the following technical scheme: a limiting mechanism for sheet metal welding jigs, comprising: an electric cylinder, a telescopic head and a movable arm, wherein the upper end of the electric cylinder is provided with a telescopic head;

[0010] A movable block is provided at the upper end of the telescopic head, a group of lower embedded heads are provided on both the front and rear sides of the movable block, a lower slide groove is provided on the outer side of the lower embedded head, a movable arm is provided on the outer side of the lower slide groove, a fixed shaft is provided inside the middle position of the movable arm, and an inner bearing is provided between the fixed shaft and the movable arm;

[0011] An upper slide groove is provided inside the upper end of the movable arm, a positioning shaft is provided inside the upper slide groove, a moving seat is provided on the rear side of the positioning shaft, a sliding seat is provided at the lower end of the moving seat, a chuck is provided at the upper end of the sliding seat, a sheet metal body is provided at the lower inner end of the chuck, a support frame is provided at the lower end of the sliding seat, and an inner groove is provided at the middle position inside the support frame.

[0012] As a preferred embodiment, the electric cylinder and the telescopic head are an integrated structure, the telescopic head is connected and fixed to the movable block, a rubber gasket is provided at the upper end of the movable block, the movable block and several groups of lower embedded heads are an integrated structure, and the rubber gasket can be used to protect the movable block and the lower end of the support frame.

[0013] As a preferred embodiment, the outer side of the lower inserting head is a roller mechanism, each group of the lower inserting heads is rollingly engaged with the inside of a group of sliding grooves, and the cross section of the sliding groove is a tilting mechanism.

[0014] As a preferred embodiment, the cross section of the movable arm is an L-shaped structure, and two groups of movable arms are provided. The two groups of movable arms are installed in a mirror-image manner with the middle position of the movable block as the axis.

[0015] As a preferred embodiment, each group of the movable arms is provided with a group of upper slide grooves and a group of lower slide grooves, the positioning shaft has the same structure as the lower insert head, and the upper slide grooves are movably engaged with the positioning shaft. By using the upper slide grooves and the lower slide grooves, the positioning shaft and the lower insert head can be limited and guided inside them when the two groups of movable arms are moving.

[0016] As a preferred embodiment, the rear side of each group of the positioning shafts is connected and fixed to a group of moving seats, the lower end of the moving seats is provided with an embedding groove, and the two groups of the moving seats are movably embedded with a group of sliding seats.

[0017] As a preferred embodiment, each group of the slides is fixed to a group of chucks by bolts, a rubber release pad is provided on the inner side of the chucks, the two groups of chucks clamp the sheet metal body, the slides are fixed to two groups of fixed shafts, and the outer side of each group of fixed shafts is fixed to the inner side of a group of inner bearings, the outer side of the inner bearings is fixed to the inside of the middle position of the movable arm, and the two groups of chucks can be driven to move along the slide path through the moving seat.

[0018] After adopting the above technical scheme, the beneficial effects of the utility model are: by using rubber gaskets, the movable block and the lower end of the support frame can be protected, and by using upper slide grooves and lower slide grooves, the positioning shaft and the lower embedded head can be limited and guided inside the two groups of movable arms when they move, and the two groups of chucks can be driven to move along the slide path by the moving seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 This is a front view structural schematic diagram of a limiting mechanism for a sheet metal welding jig of the utility model;

[0021] Figure 2 This is a schematic diagram of the front view of the structural position of two groups of movable arms in a limiting mechanism of a sheet metal welding jig according to the utility model;

[0022] Figure 3 This is a front view structural diagram of a limiting mechanism for a sheet metal welding jig of the utility model when two groups of movable arms are connected with a movable block and a movable seat;

[0023] Figure 4 This is a left oblique front view structural diagram of the two sets of movable arms connected with the movable block and the movable seat in a limiting mechanism of a sheet metal welding jig of the utility model;

[0024] In the figure: 100-electric cylinder, 110-telescopic head, 120-movable block, 130-lower embedding head, 140-lower slide groove, 150-fixed shaft, 160-positioning shaft, 170-upper slide groove, 180-movable seat, 190-chuck, 200-slide seat, 210-support frame, 220-inner groove, 230-support frame, 240-sheet metal body, 250-movable arm. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0026] See also Figure 1-Figure 4, a limiting mechanism for a sheet metal welding jig, comprising: an electric cylinder 100, a telescopic head 110 and a movable arm 250, wherein the telescopic head 110 is provided at the upper end of the electric cylinder 100;

[0027] A movable block 120 is disposed at the upper end of the telescopic head 110, and a group of lower inserting heads 130 are disposed on both the front and rear sides of the movable block 120. A lower slide groove 140 is disposed on the outer side of the lower inserting head 130, and a movable arm 250 is disposed on the outer side of the lower slide groove 140. A fixed shaft 150 is disposed inside the middle position of the movable arm 250, and an inner bearing is disposed between the fixed shaft 150 and the movable arm 250;

[0028] An upper slide groove 170 is provided inside the upper end of the movable arm 250, a positioning shaft 160 is provided inside the upper slide groove 170, a moving seat 180 is provided on the rear side of the positioning shaft 160, a slide seat 200 is provided at the lower end of the moving seat 180, a chuck 190 is provided at the upper end of the slide seat 200, a sheet metal body 240 is provided at the inner lower end of the chuck 190, a support frame 210 is provided at the lower end of the slide seat 200, and an inner groove 220 is provided at the middle position inside the support frame 210.

[0029] The electric cylinder 100 and the telescopic head 110 are an integrated structure, the telescopic head 110 is connected and fixed to the movable block 120, a rubber gasket is provided on the upper end of the movable block 120, and the movable block 120 and several groups of lower embedded heads 130 are an integrated structure, and the rubber gasket can be used to protect the movable block 120 and the lower end of the support frame 210.

[0030] The outer side of the lower inserting head 130 is a roller mechanism. Each group of lower inserting heads 130 is rollingly engaged with the inside of a group of lower sliding grooves 140. The cross section of the lower sliding groove 140 is a tilting mechanism.

[0031] The cross section of the movable arm 250 is an L-shaped structure. There are two sets of movable arms 250, and the two sets of movable arms 250 are installed in a mirror-image manner with the middle position of the movable block 120 as the axis.

[0032] Each set of movable arms 250 is provided with a set of upper slide grooves 170 and a set of lower slide grooves 140. The positioning shaft 160 has the same structure as the lower insert head 130. The upper slide grooves 170 are movably engaged with the positioning shaft 160. By using the upper slide grooves 170 and the lower slide grooves 140, the positioning shaft 160 and the lower insert head 130 can be limited and guided inside when the two sets of movable arms 250 move.

[0033] The rear side of each group of positioning shafts 160 is connected and fixed to a group of moving seats 180 . The lower end of the moving seats 180 is provided with an embedding groove. Both groups of moving seats 180 are movably embedded with a group of sliding seats 200 .

[0034] Each group of slides 200 is fixed to a group of chucks 190 by bolts, and a rubber release pad is provided on the inner side of the chuck 190. The two groups of chucks 190 clamp the sheet metal body 240. The slide 200 is connected and fixed to two groups of fixed shafts 150, and the outer side of each group of fixed shafts 150 is connected and fixed to the inner side of a group of inner bearings, and the outer side of the inner bearing is connected and fixed to the inner side of the middle position of the movable arm 250. The two groups of chucks 190 can be driven to move along the path of the slide 200 through the movable seat 180.

[0035] See also Figure 1-Figure 4 As the first embodiment of the utility model: In order to solve the problem that sheet metal parts may move or deviate during welding, if there are no limiting measures, the accuracy of the welding position cannot be guaranteed, which may lead to uneven and weak welds and even damage the welding structure. First, the staff places the sheet metal body 240 to be welded inside the two sets of clamps 190, then starts the electric cylinder 100, and drives the telescopic head 110 to move downward, and the telescopic head 110 drives the movable block 120 to move upward. When moving downward, the movable block 120 drives the lower inserting head 130 to move downward along the lower sliding groove 140, and causes the two sets of movable arms 250 to flip at a certain angle along the fixed axis 150. When the two sets of movable arms 250 flip at an angle, the upper sliding groove 170 drives the two sets of positioning shafts 160 to shrink inward, and moves the two sets of movable seats 180 inward through the positioning shafts 160. When the two sets of movable seats 180 move inward, they can drive the two sets of clamps 190 to move inward and clamp the sheet metal body 240.

[0036] See also Figure 1-Figure 4 , as the second embodiment of the utility model: based on the description in the above embodiment, further, since the lower end of the moving seat 180 is provided with an embedding groove, the two groups of moving seats 180 are movably embedded with a group of sliding seats 200. When the two groups of movable arms 250 drive the two groups of moving seats 180 to move, the moving seats 180 can move along the sliding seats 200 in a straight line path, thereby driving the chuck 190 to tightly clamp the left and right sides of the sheet metal body 240. At the same time, since each group of sliding seats 200 and a group of chucks 190 are fixed by bolts, a rubber release pad is provided on the inner side of the chuck 190. The rubber release pad can protect the outer side of the sheet metal body 240 from wear and can also prevent the sheet metal body 240 from moving during the clamping process, thereby ensuring the welding accuracy of the sheet metal body 240.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A limiting mechanism for a sheet metal welding jig, comprising: An electric cylinder (100), a telescopic head (110) and a movable arm (250), characterized in that: a telescopic head (110) is provided at the upper end of the electric cylinder (100); A movable block (120) is provided at the upper end of the telescopic head (110), a group of lower inserting heads (130) are provided on both the front and rear sides of the movable block (120), a lower slide groove (140) is provided on the outer side of the lower inserting head (130), a movable arm (250) is provided on the outer side of the lower slide groove (140), a fixed shaft (150) is provided inside the middle position of the movable arm (250), and an inner bearing is provided between the fixed shaft (150) and the movable arm (250); An upper slide groove (170) is provided inside the upper end of the movable arm (250), a positioning shaft (160) is provided inside the upper slide groove (170), a movable seat (180) is provided on the rear side of the positioning shaft (160), a slide seat (200) is provided at the lower end of the movable seat (180), a chuck (190) is provided at the upper end of the slide seat (200), a sheet metal body (240) is provided at the lower inner end of the chuck (190), a support frame (210) is provided at the lower end of the slide seat (200), and an inner groove (220) is provided at the middle position inside the support frame (210).

2. The limiting mechanism for sheet metal welding jig according to claim 1, characterized in that: The electric cylinder (100) and the telescopic head (110) are an integrated structure; the telescopic head (110) is connected and fixed to a movable block (120); a rubber gasket is provided at the upper end of the movable block (120); and the movable block (120) and a plurality of groups of lower embedded heads (130) are an integrated structure.

3. The limiting mechanism for sheet metal welding jig according to claim 2 is characterized in that: The outer side of the lower inserting head (130) is a roller mechanism, and each group of the lower inserting heads (130) is rollingly engaged with the inside of a group of lower sliding grooves (140), and the cross section of the lower sliding grooves (140) is a tilting mechanism.

4. The limiting mechanism for sheet metal welding jig according to claim 1, characterized in that: The cross section of the movable arm (250) is an L-shaped structure. Two groups of the movable arms (250) are provided, and the two groups of the movable arms (250) are installed in a mirror-image manner with the middle position of the movable block (120) as the axis.

5. The limiting mechanism for sheet metal welding jig according to claim 4 is characterized in that: Each group of movable arms (250) is provided with a group of upper slide grooves (170) and a group of lower slide grooves (140) inside. The positioning shaft (160) has the same structure as the lower inserting head (130). The upper slide groove (170) is movably engaged with the positioning shaft (160).

6. The limiting mechanism for sheet metal welding jig according to claim 5, characterized in that: The rear side of each group of positioning shafts (160) is connected and fixed to a group of moving seats (180), and a embedding groove is provided at the lower end of the moving seats (180). Both groups of moving seats (180) are movably embedded with a group of sliding seats (200).

7. The limiting mechanism for sheet metal welding jig according to claim 6, characterized in that: Each group of the slide seats (200) is connected and fixed to a group of chucks (190) by bolts, and a rubber release pad is provided on the inner side of the chuck (190). The two groups of chucks (190) clamp the sheet metal body (240). The slide seats (200) are connected and fixed to two groups of fixed shafts (150), and the outer side of each group of the fixed shafts (150) is connected and fixed to the inner side of a group of inner bearings, and the outer side of the inner bearings is connected and fixed to the inner side of the middle position of the movable arm (250).

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