Automatic welding machine structure for circumferential welds

Abstract

The utility model discloses an automatic welding machine structure for circumferential welds, which comprises a welding machine and a base, and the welding machine comprises a gear motor mounted on the surface of the base, a mounting seat mounted on a transmission block, and a circumferential welding gun and a clamp mechanism which are arranged on the surface of the mounting seat; a ground wire fixing block is arranged, the position of a connected grounding cable can be limited and connected through a cover head, the other end of the grounding cable is grounded and conductive, a traditional carbon brush structure is omitted, replacement and maintenance are facilitated, and the cost is lower; the sealing cover with a labyrinth structure is mounted, so that the speed reducer can be protected from being polluted by welding slag, and the service life of the speed reducer is prolonged; the clamp mechanism is arranged, the clamp mechanism is driven by the lead screw transmission base to rise upwards, then a chuck to be welded is arranged on the limiting base at the top of the stand column cylinder in a sleeving mode, air is fed through the air pump, the air inflation expansion sleeve bulges the air cylinder to limit chuck products, the clamp can be suitable for chuck products of different models, precision is higher, and maintenance is easy.

Description

Technical Field

[0001] The utility model relates to a structure of an automatic welding machine for circular seams, belonging to the field of welding machines. Background Art

[0002] The automatic circular seam welding machine is a kind of general automatic circular seam welding machine tool with a quite wide range of applications. The automatic circular seam welding machine adopts a horizontal bed body, equipped with a rotatable head with adjustable angle, a pneumatic tailstock and an X-Y two-axis electric carriage. The rotatable head can be turned over 90 degrees up and down. In addition to normal horizontal welding, vertical welding can also be carried out. The main shaft of the head is driven by a servo motor, which can accurately set the welding speed and the overlap angle of the weld seams; when welding the chuck, welding slag will fall during the welding process, and the welding slag will fall into the reduction motor. Over time, it will affect the service life of the reduction motor. At the same time, the reduction motor is grounded by adopting a traditional carbon brush structure, with high cost and inconvenient maintenance, which is quite troublesome; on the other hand, when clamping circular objects of different models, it is very troublesome to adjust the size of the fixture, and the accuracy is not high. Content of the Utility Model

[0003] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a structure of an automatic welding machine for circular seams, so as to solve the problems that when welding the chuck, welding slag will fall during the welding process, and the welding slag will fall into the reduction motor. Over time, it will affect the service life of the reduction motor. At the same time, the reduction motor is grounded by adopting a traditional carbon brush structure, with high cost and inconvenient maintenance, which is quite troublesome; on the other hand, when clamping circular objects of different models, it is very troublesome to adjust the size of the fixture, and the accuracy is not high.

[0004] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: an automatic welding machine structure for annular welds, including a welding machine and a base, the welding machine is installed on the surface of the base, a mounting frame is installed on the surface of the base, the mounting frame is installed with a screw transmission seat and a transmission block, the welding machine includes a reduction motor installed on the surface of the base, a mounting seat installed on the transmission block, an annular welding gun and a clamp mechanism arranged on the surface of the mounting seat, and a protective shell is installed on the surface of the reduction motor; the protective shell includes a rear shell, a sealing cover with a labyrinth structure, and a pneumatic seat, the surface of the pneumatic seat is connected to the sealing cover, and the back is connected to the rear shell; a ground wire fixing block is arranged at the bottom of the reduction motor, and the ground wire fixing block includes a detachable cover head and a limit groove, and a grounding cable is arranged in the limit groove and is passed through The position is limited by the cover head; the clamp mechanism includes a fixed seat arranged on the surface of the mounting seat, a movable rod movably connected to the bottom of the fixed seat, an upper cover fixed to the bottom of the movable rod, and a spring is sleeved on the surface of the movable rod, and a column tube with a built-in guide tube is arranged at the bottom of the upper cover, and the bottom of the column tube is fixedly connected to the top of the reduction motor; the above-mentioned can control the lifting and lowering of the mounting seat through the screw transmission seat and the transmission block, thereby controlling the opening of the clamp mechanism, and with the use of the column tube, the position of the chuck or annular object can be limited; on the other hand, a protective shell is provided, and the position can be adjusted through the pneumatic seat with a pneumatic connecting seat, so that the multi-layer sealing cover sheet arranged in the sealing cover is tightly attached to the surface of the reduction motor, which can protect the reducer from being contaminated by welding slag and extend the service life of the reducer.

[0005] Preferably, a pneumatic connecting seat is provided on the back of the sealing cover, and a multi-layer sealing cover sheet is provided inside the sealing cover and cooperates with the surface of the reduction motor; a pneumatic slide is provided on the back of the pneumatic seat, and the pneumatic seat is slidably connected with the pneumatic connecting seat provided on the back of the sealing cover through the pneumatic slide; the above-mentioned pneumatic connecting seat can be controlled to slide on the slide of the pneumatic slide by air intake of an air pump, so that the multi-layer sealing cover sheet provided in the sealing cover is tightly attached to the surface of the reduction motor.

[0006] Preferably, a limiting seat is provided on the top of the column tube and is interconnected; the above-mentioned seat is used in conjunction with the upper cover to play a limiting role.

[0007] Preferably, an air intake seat is provided on the top of the limit seat, and a plastic inflatable sleeve is provided on the surface of the air intake seat; air can be supplied through an air pump, and when the annular object is put on the limit seat, the air intake causes the sleeve to expand outward to support the annular object, thereby limiting it. If it needs to be loosened, the exhaust valve can be opened to exhaust air to loosen it.

[0008] Preferably, a recessed groove seat is provided on the top of the limiting seat, which is used for connection with the upper closing cover.

[0009] Preferably, a connector matching with the groove base is arranged at the bottom of the upper cover; the above is used for connecting with the groove base at the top of the limit base.

[0010] Preferably, a connecting frame is installed on the surface of the rear shell and is fixedly connected with the back of the pneumatic seat by screws through the connecting frame; the rear shell is connected with the pneumatic seat through the connecting frame, playing a role in protecting the pneumatic seat.

[0011] Beneficial effects

[0012] The structure of an automatic circular weld welder of the present utility model:

[0013] 1. A ground wire fixing block is provided, which can limit and connect the connected grounding cable through the cap head. The other end of the grounding cable is grounded for conduction, eliminating the traditional carbon brush structure, facilitating replacement and maintenance, and having a lower cost;

[0014] 2. A sealing cover with a labyrinth structure is installed, which can be adjusted in position through the pneumatic seat with a pneumatic connecting seat, so that the multiple sealing cover sheets arranged in the sealing cover are closely attached to the surface of the reduction motor, protecting the reduction gear from being polluted by welding slag and extending the service life of the reduction gear;

[0015] 3. A fixture mechanism is provided. The fixture mechanism is driven by a lead screw transmission seat to rise, and then the chuck to be welded is sleeved on the limit seat at the top of the column cylinder. At this time, air is introduced through an air pump to make the inflatable expansion sleeve bulge the cylinder to limit the chuck product, which can be applicable to different models of chuck products, with higher precision and simple maintenance. Description of the drawings

[0016] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, purposes and advantages of the present utility model will become more obvious:

[0017] Figure 1 It is a schematic diagram of the main structure of the welder of the structure of an automatic circular weld welder of the present utility model;

[0018] Figure 2 It is a schematic diagram of the protective shell and the reduction motor of the structure of an automatic circular weld welder of the present utility model;

[0019] Figure 3 It is a schematic diagram of the protective shell of the structure of an automatic circular weld welder of the present utility model;

[0020] Figure 4 It is a schematic diagram of the grounding structure of the reduction motor of the structure of an automatic circular weld welder of the present utility model;

[0021] Figure 5 It is a schematic diagram of the ground wire fixing block of the structure of an automatic circular weld welder of the present utility model;

[0022] Figure 6 Schematic diagram of the fixture mechanism and the circular welding torch structure of an automatic circular weld welder according to the present utility model;

[0023] Figure 7 Schematic diagram of the fixture mechanism of an automatic circular weld welder according to the present utility model;

[0024] Figure 8 Schematic diagram of the fixture mechanism of an automatic circular weld welder according to the present utility model;

[0025] Figure 9 Schematic diagram of the rear shell structure of an automatic circular weld welder according to the present utility model.

[0026] In the figure: welder - 1, base - 2, mounting frame - 3, circular welding torch - 11, fixture mechanism - 12, reduction motor - 13, protective shell - 14, mounting seat - 16, lead screw drive seat - 31, drive block - 32, fixed seat - 121, movable rod - 122, upper cover - 123, spring - 124, column cylinder - 125, ground wire fixing block - 132, grounding cable - 133, rear shell - 141, sealing cover - 142, pneumatic seat - 143, cover head - 1321, limit groove - 1322, connecting frame - 1411, pneumatic connection seat - 1421, pneumatic sliding seat - 1431, air inlet seat - a1, inflatable expansion sleeve - a2, groove seat - a3. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] Embodiment 1

[0029] As Figures 1-9As shown in the figure, a structure of an automatic circular weld welder includes a welder 1 and a base 2. The welder 1 is installed on the surface of the base 2. An installation frame 3 is installed on the surface of the base 2. The installation frame 3 is equipped with a screw drive seat 31 and a drive block 32. The welder 1 includes a reduction motor 13 installed on the surface of the base 2, a mounting seat 16 installed on the drive block 32, a circular welding torch 11 and a fixture mechanism 12 arranged on the surface of the mounting seat 16. A protective shell 14 is installed on the surface of the reduction motor 13; the protective shell 14 includes a rear shell 141, a sealing cover 142 with a labyrinth structure, and a pneumatic seat 143. The surface of the pneumatic seat 143 is connected to the sealing cover 142, and the back is connected to the rear shell 141; a ground wire fixing block 132 is arranged at the bottom of the reduction motor 13. The ground wire fixing block 132 includes a detachable cover head 1321 and a limiting groove 1322. A grounding cable 133 is arranged in the limiting groove 1322 and its position is limited by the cover head 1321; the fixture mechanism 12 includes a fixed seat 121 arranged on the surface of the mounting seat 16, a movable rod 122 movably connected to the bottom of the fixed seat 121, an upper cover 123 fixed to the bottom of the movable rod 122, and a spring 124 sleeved on the surface of the movable rod 122. A column cylinder 125 with an internal conduit is arranged at the bottom of the upper cover 123. The bottom of the column cylinder 125 is fixedly connected to the top of the reduction motor 13; a pneumatic sliding seat 1431 is arranged on the back of the pneumatic seat 143. The pneumatic seat 143 is slidably connected to a pneumatic connection seat 1421 arranged on the back of the sealing cover 142 through the pneumatic sliding seat 1431; a limiting seat 1251 is arranged at the top of the column cylinder 125 and they are interconnected; an air inlet seat a1 is arranged at the top of the limiting seat 1251. A plastic inflatable expansion sleeve a2 is arranged on the surface of the air inlet seat a1; a recessed groove seat a3 is arranged at the top of the limiting seat 1251; a connection head matching with the groove seat a3 is arranged at the bottom of the upper cover 123; a connection frame 1411 is installed on the surface of the rear shell 141 and is fixedly connected to the back of the pneumatic seat 143 through the connection frame 1411 by screws.

[0030] In this embodiment, the lifting of the mounting seat 16 is controlled by the lead screw drive seat 31 and the drive block 32. The lead screw is rotated by the driving motor, so that the threaded seat threadedly connected thereto moves up or down following the forward or reverse rotation of the driving motor, thereby driving the drive block 32 to move up or down, and finally realizing the lifting of the mounting seat 16. When the mounting seat 16 rises, the clamping mechanism 12 will be lifted. At this time, a ring-shaped object such as a chuck of the weld to be made is sleeved on the limit seat 1251, and then the clamping mechanism 12 is controlled to reset. The upper cover 123 fits against the top of the limit seat 1251, and then the air pump is used to inflate the air-filled expansion sleeve a2 to bulge and limit the chuck. It can be applicable to chucks of different models, with higher precision and simpler maintenance. Finally, the annular welding torch 11 and the reduction motor 13 are cooperated to perform the weld. On the other hand, a ground wire fixing block is provided, and the connected grounding cable 133 can be positionally limited and connected through the cover head 1321. The other end of the grounding cable 133 is grounded and conducts electricity, eliminating the traditional carbon brush structure, facilitating replacement and maintenance, and having a lower cost.

[0031] Embodiment 2

[0032] For the structure of an automatic annular weld machine of the present utility model, a pneumatic connection seat 1421 is provided on the back of the sealing cover 142, and multiple layers of sealing cover sheets are provided inside the sealing cover 142 and are matched with the surface of the reduction motor 13; a pneumatic connection seat 1421 is provided on the back of the sealing cover 142, and multiple layers of sealing cover sheets are provided inside the sealing cover 142 and are matched with the surface of the reduction motor 13.

[0033] In this embodiment, a sealing cover 142 with a labyrinth structure is installed, and the pneumatic connection seat 1421 can be positionally adjusted by the pneumatic seat 143, so that the multiple layers of sealing cover sheets provided inside the sealing cover 142 closely adhere to the surface of the reduction motor 13, which can protect the reduction gear from being contaminated by welding slag and extend the service life of the reduction gear.

[0034] Working principle:

[0035] During use, the lifting of the mounting seat 16 is controlled by the lead screw drive seat 31 and the drive block 32. The lead screw is rotated by the driving motor, causing the threaded seat threadedly connected thereto to move up or down following the forward and reverse rotations of the driving motor, thereby driving the drive block 32 to move up or down, and finally realizing the lifting of the mounting seat 16. When the mounting seat 16 rises, the clamping mechanism 12 will be lifted. At this time, annular objects such as chucks for the weld seams are sleeved on the limit seat 1251, and then the clamping mechanism 12 is controlled to reset. At this time, the upper cover 123 fits against the top of the limit seat 1251, and then air is introduced through the air pump to make the inflatable expansion sleeve a2 bulge to limit the chuck. It can be applicable to chucks of different models, with higher precision and simpler maintenance. Finally, the annular welding torch 11 and the reduction motor 13 are cooperated to perform the weld seam. On the other hand, a ground wire fixing block is provided, and the connected grounding cable can be positionally limited and connected through the cover head 1321. The other end of the grounding cable is grounded and conducts electricity, eliminating the traditional carbon brush structure, facilitating replacement and maintenance, and having a lower cost. On the other hand, a sealing cover 142 with a labyrinth structure is installed, and the pneumatic seat 143 can drive the pneumatic connection seat 1421 to adjust the position, so that the multiple sealing cover sheets arranged in the sealing cover 142 closely adhere to the surface of the reduction motor 13, which can protect the reduction gear from being polluted by welding slag and extend the service life of the reduction gear. The pneumatic seat 143 can drive the pneumatic connection seat 1421 to adjust the position, so that the multiple sealing cover sheets arranged in the sealing cover 142 closely adhere to the surface of the reduction motor 13, which can protect the reduction gear from being polluted by welding slag and extend the service life of the reduction gear.

[0036] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0037] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic annular welder structure, comprising a welder (1) and a base (2), wherein the welder (1) is mounted on the surface of the base (2), and is characterized in that: A mounting frame (3) is mounted on the surface of the base (2), and a screw drive seat (31) and a drive block (32) are mounted on the mounting frame (3). The welding machine (1) comprises a reduction motor (13) mounted on the surface of the base (2), a mounting seat (16) mounted on the drive block (32), and an annular welding gun (11) and a clamp mechanism (12) arranged on the surface of the mounting seat (16). A protective shell (14) is mounted on the surface of the reduction motor (13); The protective shell (14) comprises a rear shell (141), a sealing cover (142) in a labyrinth structure, and a pneumatic seat (143); the surface of the pneumatic seat (143) is connected to the sealing cover (142), and the back surface is connected to the rear shell (141); A ground wire fixing block (132) is arranged at the bottom of the reduction motor (13), and the ground wire fixing block (132) comprises a detachable cover (1321) and a limiting groove (1322); a ground cable (133) is arranged in the limiting groove (1322) and its position is limited by the cover (1321); The clamp mechanism (12) comprises a fixed seat (121) arranged on the surface of the mounting seat (16), a movable rod (122) movably connected to the bottom of the fixed seat (121), an upper closing cover (123) fixed to the bottom of the movable rod (122), and a spring (124) is sleeved on the surface of the movable rod (122); a column tube (125) with a guide tube inside is arranged at the bottom of the upper closing cover (123), and the bottom of the column tube (125) is fixedly connected to the top of the reduction motor (13).

2. The automatic circular welder structure according to claim 1 is characterized in that: The back of the sealing cover (142) is provided with a pneumatic connection seat (1421), and a plurality of layers of sealing cover sheets are provided inside the sealing cover (142) and are matched with the surface of the reduction motor (13).

3. The automatic circular welder structure according to claim 1 is characterized in that: A pneumatic sliding seat (1431) is arranged on the back of the pneumatic seat (143), and the pneumatic seat (143) is slidably connected to a pneumatic connecting seat (1421) arranged on the back of the sealing cover (142) via the pneumatic sliding seat (1431).

4. The automatic circular welder structure according to claim 1 is characterized in that: A limited position seat (1251) is provided on the top of the column tube (125) and the columns are interconnected.

5. The automatic circular welder structure according to claim 4 is characterized in that: An air inlet seat (a1) is arranged on the top of the limiting seat (1251), and a plastic inflatable sleeve (a2) is arranged on the surface of the air inlet seat (a1).

6. The automatic circular welder structure according to claim 4 is characterized in that: The top of the limiting seat (1251) is provided with a recessed groove seat (a3).

7. The automatic circular welder structure according to claim 6, characterized in that: The bottom of the upper cover (123) is provided with a connector that matches the groove seat (a3).

8. The automatic circular welder structure according to claim 1 is characterized in that: A connecting frame (1411) is installed on the surface of the rear shell (141) and is fixedly connected to the back side of the pneumatic seat (143) by screws via the connecting frame (1411).

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