Welding jig applying rotary pressing structure

Abstract

The utility model discloses a welding jig applying a rotary pressing structure, which relates to the technical field of welding jigs and comprises a base, a steel sleeve positioning seat, a three-cylinder net fixing edge and a net rack positioning and pressing part, the pressing head is twisted by a corresponding angle in the pressing and lifting processes, so that when a prefabricated net rack and a conical steel sleeve are loaded and a welded product is taken out, the operation is more convenient and quicker, the clamping and taking time is greatly shortened, and the production efficiency is remarkably improved; the height of the prefabricated net rack is supported by arranging the positioning pad, welding errors are corrected and overcome through the elasticity of the taper pins, and eight positions are arranged on the two sides of each conical steel sleeve respectively, so that the precision after the conical steel sleeves and the prefabricated net rack are welded is effectively guaranteed, and the defective rate of products is greatly reduced; a steel sleeve positioning structure made of brass is adopted, welding heat can be easily guided out, the friction coefficient of the steel sleeve positioning structure and the conical steel sleeve is small, extraction is convenient, damage to products is reduced, and the product quality is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding fixture technical field, concretely is a kind of welding fixture of application rotary pressure structure. BACKGROUND

[0002] In modern industrial production, the manufacturing process of various parts is constantly pursuing high efficiency, precision and high quality. As shown in Figure 7, the mesh structure parts have a wide range of applications in the industry. The part is welded by steel wire, and the conical steel sleeve on the four corners bears the key positioning and fixing function when the product is used. Since the mesh structure parts need to ensure that any combination can be smoothly installed and stacked, it puts forward very high requirements for the consistency of the four conical steel sleeves. Not only the relative position tolerance needs to be strictly controlled, but also the size tolerance must be accurate. And the four conical steel sleeves are welded on the prefabricated net rack, which undoubtedly puts forward a severe challenge to the precision and rigidity of the welding fixture.

[0003] At the same time, the market demand for the product is large, and the production task is heavy, which has an urgent requirement for production efficiency. According to the production plan, the automatic welding cycle needs to be controlled within 60 seconds. However, the existing welding fixture has many problems in the aspects of pressure and lifting action. Some clamps are slow in pressure and lifting action, which cannot meet the rhythm of rapid production; some clamps are poor in action accuracy, which leads to deviation of welding position and affects product quality; some clamps have high failure rate, and frequent fault maintenance not only increases production cost, but also seriously affects production progress. SUMMARY

[0004] The utility model aims at providing a kind of welding fixture of application rotary pressure structure to solve the problem that the existing welding fixture in the above background technology cannot meet the requirements of the mesh structure parts in precision, rigidity and production efficiency.

[0005] In order to achieve the above object, the utility model provides following technical scheme: a welding fixture of application rotation compression structure, including base, the top of base is rectangle setting and is setting a group of steel sleeve positioning seat respectively in every corner, is setting a group of three circular column fixed net edge respectively in ninety degrees included angle of both sides of steel sleeve positioning seat, simultaneously sets up a group of net frame positioning compression part outside every steel sleeve positioning seat, the base includes base bottom plate and is setting with base support column in the top surface center thereof, the top surface of base support column is setting with the rectangular base positioning frame, four corners of base positioning frame is respectively setting one steel sleeve positioning seat hole, and is setting with steel sleeve positioning seat through steel sleeve positioning seat hole, is setting a group of three circular column fixed net edge on the side of two base positioning frames which is close to steel sleeve positioning seat, is respectively setting one base support lug which extends to the outside in four corners of base positioning frame, is setting with positioning compression through -hole on every base support lug, is setting with net frame positioning compression part through positioning compression through -hole, the steel sleeve positioning seat includes steel sleeve unlocking cylinder which is setting below steel sleeve positioning seat hole and steel sleeve base which is setting above, the steel sleeve base is hollow setting and passes out with piston axle rod of steel sleeve unlocking cylinder in the axis center thereof, the three circular column fixed net edge includes three positioning circular column which is arranged in equilateral triangle, and the top of every positioning circular column is setting with conical table and is setting with chamfer on the edge, the long side of three positioning circular column is parallelly set with the outside edge of base positioning frame, and is setting with one circular column positioning pad in the middle of two positioning circular columns which is close to steel sleeve positioning seat, the net frame positioning compression part includes compression cylinder which is setting in the bottom end of positioning compression through -hole and compression axle rod guide bush which is setting in the upper end, and is setting with rotation compression axle rod which is connected with piston axle rod of compression cylinder in compression axle rod guide bush, the top of rotation compression axle rod is setting with one Y type compression frame and is connected with the tail end thereof, the bottom surface center of Y type compression frame is setting with steel sleeve pressing head, is setting with one pressing head through -hole in two front ends of Y type compression frame, and is setting with one floating pressing head in every pressing head through -hole.

[0006] Preferably, the included angle between the base support lug and the two side edges of the base positioning frame is equal.

[0007] Preferably, the outside of the floating pressing head is sleeved with a floating spring; the steel sleeve pressing head and the floating pressing head are coaxially arranged with the corresponding steel sleeve base and the circular column positioning pad respectively.

[0008] Preferably, a slot twisted by 90 degrees is formed on the inner wall of the compression axle rod guide bush, and a circular pin is arranged on the rotation compression axle rod and can slide in the slot.

[0009] Preferably, the steel sleeve base is hollow and internally arranged with a brass positioning seat, and the brass positioning seat is connected with the piston axle rod of the steel sleeve unlocking cylinder.

[0010] Preferably, the automatic welding cycle is within 60 seconds.

[0011] Compared with the prior art, the automatic welding device has the advantages that:

[0012] 1、The unique pressing and lifting structure design enables the pressing head to twist by a corresponding angle during the pressing and lifting process, which makes the operation more convenient and rapid when the prefabricated net rack and conical steel sleeve are loaded and the welded product is taken out, greatly reduces the clamping and taking time, and significantly improves the production efficiency;

[0013] 2、The prefabricated net rack height is supported by the positioning pad, the welding error is corrected by the elasticity of the conical pin, and one is arranged on each side of the conical steel sleeve, a total of eight, which effectively ensures the precision of the conical steel sleeve and the prefabricated net rack after welding, and greatly reduces the product rejection rate;

[0014] 3、The steel sleeve positioning structure made of brass not only facilitates the dissipation of welding heat, helps to prevent material property changes and welding defects caused by overheating, but also has a small friction coefficient with the conical steel sleeve, is easy to pull out, reduces damage to the product, and further improves the product quality;

[0015] 4、The special design of the pressing and lifting structure reduces the contact strength, thereby reducing the probability of wear and failure caused by long-term use, and reducing the equipment maintenance cost;

[0016] 5、The welding fixture is fixed on the rack, which is convenient for installing control switches or other mechanisms, so that the operator can more conveniently control and operate the entire welding process, improving the convenience and safety of operation; the positioning design of the conical steel sleeve driven by the air cylinder enables the conical steel sleeve to be easily pulled out after welding, overcoming the friction force caused by stress deformation, which not only facilitates the taking out of the product, but also facilitates the cleaning and maintenance of the fixture, reducing the maintenance difficulty. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a perspective view of the utility model;

[0018] Figure 2 is Figure 1 a plan view;

[0019] Figure 3 is Figure 2 a sectional view of a-a;

[0020] Figure 4 is Figure 2 a sectional view of a-a and c-c;

[0021] Figure 5 isFigure 2 Sectional view of middle A-B;

[0022] Figure 6 Schematic view of the net frame positioning and pressing part from pressing to loosening;

[0023] Figure 7 Schematic view of the net structure part;

[0024] In the figure: prefabricated net frame-A1, conical steel sleeve-A2, base-1, base bottom plate-11, base support column-12, base positioning frame-13, steel sleeve positioning seat hole-14, base support lug-15, positioning and pressing through hole-16, steel sleeve positioning seat-2, steel sleeve unlocking cylinder-21, steel sleeve base-22, brass positioning seat-23, three-cylinder positioning net edge-3, positioning cylinder-31, cylinder positioning pad-32, net frame positioning and pressing part-4, pressing cylinder-41, pressing shaft guide sleeve-42, rotating pressing shaft-43, Y-shaped pressing frame-44, steel sleeve pressing head-45, pressing head through hole-46, floating pressing head-47, floating spring-48. DETAILED DESCRIPTION

[0025] In order to make the technical personnel in the art better understand the technical scheme of the utility model, the technical scheme in the utility model embodiment is described clearly and completely below in combination with the drawings and specific embodiments.

[0026] Please refer to Figures 1-6 , Figure 1 Axonometric view of the utility model; Figure 2 Is Figure 1 Top view; Figure 3 Is Figure 2 Sectional view of middle A-B; Figure 4 Is Figure 2 Sectional view of middle A-B and C-C; Figure 5 Is Figure 2 Sectional view of middle B-B; Figure 6 Schematic view of the net frame positioning and pressing part from pressing to loosening; Figure 7 Schematic view of the net structure part.

[0027] A net structure part comprises a prefabricated net frame A1 welded by steel wires into a rectangle, and a conical steel sleeve A2 is vertically arranged at each of the four corners of the prefabricated net frame A1, for positioning and fixing the net structure part during use and installation stacking, and because the net structure part is required to be smoothly stacked in any combination, the four conical steel sleeves A2 are required to have good consistency, and the relative position tolerance and size tolerance are required to be relatively strict.

[0028] The utility model provides a kind of welding fixture of application rotary compression structure, for the group of mesh structure part of above-mentioned production use;Including base 1, the top of base 1 is rectangle and sets up a set of steel sleeve positioning seat 2 at each corner respectively, and a set of three cylindrical net edge 3 is set up at the both sides of steel sleeve positioning seat 2 with ninety degrees angle respectively, while a set of net rack positioning compression part 4 is set up outside each steel sleeve positioning seat 2.

[0029] The base 1 includes base bottom plate 11, a base support column 12 is provided at the top surface center of the base bottom plate 11, a rectangular base positioning frame 13 is provided on the top surface of the base support column 12, a steel sleeve positioning seat hole 14 is provided at the four corners of the base positioning frame 13 respectively, and a steel sleeve positioning seat 2 is provided through the steel sleeve positioning seat hole 14, and a set of three cylindrical net edge 3 is provided on the side edges of the two base positioning frames 13 close to the steel sleeve positioning seat 2 respectively; meanwhile, a base supporting lug 15 that extends outward is provided at the four corners of the base positioning frame 13 respectively, and the included angle between the base supporting lug 15 and the two side edges of the base positioning frame 13 is equal, a positioning compression through hole 16 is provided on each base supporting lug 15, and a net rack positioning compression part 4 is provided through the positioning compression through hole 16.

[0030] The steel sleeve positioning seat 2 includes a steel sleeve unlocking cylinder 21 arranged below the steel sleeve positioning seat hole 14 and a steel sleeve base 22 arranged above, the steel sleeve base 22 is hollow and internally provided with a brass positioning seat 23, and the brass positioning seat 23 is connected with the piston shaft of the steel sleeve unlocking cylinder 21.

[0031] The steel sleeve base 22 is hollow and has the piston shaft of the steel sleeve unlocking cylinder 21 penetrating through the axis.

[0032] The three cylindrical net edge 3 includes three positioning cylinders 31 arranged in an isosceles triangle, and the top end of each positioning cylinder is arranged in a conical platform and the edge is arranged in a chamfer; the long side of the three positioning cylinders 31 is arranged parallel to the outside edge of the base positioning frame 13, and a cylindrical positioning pad 32 is arranged at the middle of the two positioning cylinders 31 close to the steel sleeve positioning seat 2.

[0033] The net rack positioning and pressing part 4 comprises a pressing cylinder 41 arranged at the bottom end of the positioning and pressing through hole 16 and a pressing shaft guide sleeve 42 arranged at the upper end, and a rotating pressing shaft 43 connected with the piston shaft of the pressing cylinder 41 is arranged in the pressing shaft guide sleeve 42, the top end of the rotating pressing shaft 43 is provided with a Y-shaped pressing frame 44 and is connected with the tail end, a steel sleeve pressing head 45 is arranged at the center of the bottom surface of the Y-shaped pressing frame 44, a pressing head through hole 46 is arranged at each of the two front ends of the Y-shaped pressing frame 44, and a floating pressing head 47 is arranged in each pressing head through hole 46, and the outer side of the floating pressing head 47 is sleeved with a floating spring 48; the steel sleeve pressing head 45 and the floating pressing head 47 are coaxially arranged with the corresponding steel sleeve base 22 and the cylindrical positioning pad 32.

[0034] A slot twisted by 90 degrees is formed on the inner wall of the pressing shaft guide sleeve 42, a cylindrical pin arranged in the 90-degree slot is arranged on the rotating pressing shaft 43 and can slide in the slot, so that the rotating pressing shaft 43 can twist the Y-shaped pressing frame 44 by 90 degrees in the process of pressing and lifting, thereby simplifying the pressing structure, improving the production efficiency, increasing the contact area, reducing the contact strength and reducing the failure rate.

[0035] In use, the prefabricated net rack A1 is positioned and fixed by the multiple sets of three-cylinder positioning net edges 3, the conical steel sleeve A2 is positioned and fixed by the steel sleeve positioning base 2, then the prefabricated net rack A1 and the conical steel sleeve A2 are synchronously pressed and fixed by the net rack positioning and pressing part 4, and then the prefabricated net rack A1 and the conical steel sleeve A2 are welded into one body; after the welding is completed, first, the four steel sleeve unlocking cylinders 21 unlock the conical steel sleeve A2, then the four pressing cylinders 41 drive the Y-shaped pressing frame 44 to be lifted upward and simultaneously rotated outward by 90 degrees, so as to leave space for the upper part of the product, so that the product can be taken out from the welded product; then the four brass positioning bases 23 are pushed out by the connected steel sleeve unlocking cylinders 21, then the four conical steel sleeves A2 are sleeved on the brass positioning bases 23, then the prefabricated net rack A1 is placed on the multiple sets of three-cylinder positioning net edges 3, then the four pressing cylinders 41 drive the corresponding rotating pressing shafts 43 to be downward, and the four conical steel sleeves A2 are pressed on the brass positioning bases 23 while being rotated inward, and the floating pressing heads 47 on the Y-shaped pressing frame 44 press the prefabricated net rack A1 on the three-cylinder positioning net edges 3, so that the next welding can be performed.

[0036] Through actual application detection, the welding jig provided by the utility model has high precision and rigidity, high production efficiency, and the automatic welding cycle of each product is within 60 seconds.

[0037] Although the embodiments of the present application have been shown and described, it is apparent that the described embodiments are only part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, it can be understood by those skilled in the art that, without departing from the principles and spirits of the present application, all other embodiments obtained by various changes, modifications, replacements and variations of these embodiments without creative labor belong to the protection scope of the present application.

Claims

1. A welding jig using a rotary press structure, characterized by: The utility model provides a kind of steel sleeve positioning seat and net frame positioning and pressing part, including base (1), the top of the base (1) is rectangularly arranged and is respectively arranged a group of steel sleeve positioning seat (2) at each corner, a group of three cylindrical net frame edge (3) is arranged at the two sides of the steel sleeve positioning seat (2) at ninety degrees angle respectively, while a group of net frame positioning and pressing part (4) is arranged outside each steel sleeve positioning seat (2);The base (1) includes base bottom plate (11) and is provided with base support column (12) at its top surface center, the top surface of the base support column (12) is provided with rectangular base positioning frame (13), four corners of the base positioning frame (13) are respectively provided with a steel sleeve positioning seat hole (14), and steel sleeve positioning seat (2) is provided by the steel sleeve positioning seat hole (14), a group of three cylindrical net frame edge (3) is respectively arranged on the side of two base positioning frames (13) close to the steel sleeve positioning seat (2);A base lug (15) that extends outward is respectively arranged at the four corners of the base positioning frame (13), and positioning and pressing through-hole (16) is arranged on each base lug (15), and net frame positioning and pressing part (4) is arranged by the positioning and pressing through-hole (16);The steel sleeve positioning seat (2) includes steel sleeve unlocking cylinder (21) arranged below the steel sleeve positioning seat hole (14) and steel sleeve base (22) arranged above, the steel sleeve base (22) is hollowly arranged and passes the piston shaft of the steel sleeve unlocking cylinder (21) at its axis center;Three positioning cylinders (31) of the three cylindrical net frame edge (3) are arranged in equilateral triangle, and the top of each positioning cylinder is conically arranged and the edge is chamfered;The long side of three positioning cylinders (31) is parallelly arranged with the outside side of the base positioning frame (13), and a cylindrical positioning pad (32) is arranged at the middle of two positioning cylinders (31) close to the steel sleeve positioning seat (2);The net frame positioning and pressing part (4) includes pressing cylinder (41) arranged at the bottom end of the positioning and pressing through-hole (16) and pressing shaft guide sleeve (42) arranged at the upper end, and rotating pressing shaft (43) connected with the piston shaft of the pressing cylinder (41) is arranged in the pressing shaft guide sleeve (42), the top of the rotating pressing shaft (43) is provided with a Y-shaped pressing frame (44) and is connected with its tail end, the bottom surface center of the Y-shaped pressing frame (44) is provided with steel sleeve pressing head (45), a pressing head through-hole (46) is respectively arranged at the two front ends of the Y-shaped pressing frame (44), and a floating pressing head (47) is arranged in each pressing head through-hole (46).

2. The welding jig using a rotary press structure according to claim 1, characterized by: The included angle between the base lug (15) and the two side edges of the base positioning frame (13) is equal.

3. The welding jig using a rotary pinch structure according to claim 2, characterized by: The outside of the floating pressing head (47) is provided with floating spring (48);The steel sleeve pressing head (45) and floating pressing head (47) are coaxially arranged with corresponding steel sleeve base (22) and cylindrical positioning pad (32) respectively.

4. The welding jig using a rotary press structure according to claim 3, characterized by: The inner wall of the compression shaft guide sleeve (42) is provided with a 90-degree twisted slot, and the rotating compression shaft (43) is provided with a cylindrical pin placed in the 90-degree slot and can slide in the slot.

5. The welding jig using a rotary pinch structure according to claim 4, characterized by: The steel sleeve base (22) is hollow and internally provided with a brass positioning seat (23), and the brass positioning seat (23) is connected with the piston shaft of the steel sleeve unlocking cylinder (21).

6. The welding jig using a rotary pinch structure according to claim 5, characterized by: The automatic welding cycle is within 60 seconds.

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