CN216730024U - Variable-diameter seam welder center electrode - Google Patents
Variable-diameter seam welder center electrode Download PDFInfo
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- CN216730024U CN216730024U CN202123388732.7U CN202123388732U CN216730024U CN 216730024 U CN216730024 U CN 216730024U CN 202123388732 U CN202123388732 U CN 202123388732U CN 216730024 U CN216730024 U CN 216730024U
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Abstract
The utility model relates to a variable-diameter seam welder center electrode, which is characterized in that: comprises a central shaft sleeve; the welding blocks are movably arranged on the wall of the shaft sleeve in a penetrating way and can radially extend and retract relative to the middle shaft sleeve; each elastic piece correspondingly acts on one welding block to enable the welding block to keep a radially inwards contracted state; the transmission shaft is arranged in the middle shaft sleeve, and the rear end of the transmission shaft is connected with a rocker arm used for driving the transmission shaft to rotate around the axis of the transmission shaft; the adjusting block is sleeved on the transmission shaft and can be driven by the transmission shaft to rotate, a plurality of groups of step parts are formed on the peripheral wall of the adjusting block, the high-level surface and the low-level surface of each step part are in inclined plane or arc surface transition, the inner end of each welding block is abutted against one group of step parts, the inner end of each welding block is abutted against the high-level surface and then is in a radial outward extending state, and the inner end of each welding block is abutted against the low-level surface and then is in a radial inward contracting state. The structure can ensure that the main rib with the thread sleeve does not deform and smoothly passes through the top surface of the welding block.
Description
Technical Field
The utility model relates to a center electrode of a reinforcement cage seam welder, in particular to a variable-diameter center electrode of a seam welder.
Background
A steel reinforcement cage seam welder is a machine which spirally winds steel wires (also called stirrups) on a plurality of axial lines of arranged steel reinforcements (also called main reinforcements or steel bars) and performs welding, and the history of consistent manual binding of the stirrups of a steel reinforcement cage is finished. The roll welding machine for the reinforcement cage can connect a plurality of reinforcing steel bars into a rigid frame, concrete can be further poured into the frame to form a concrete pile, and the roll welding machine is widely applied to the field of buildings.
A reinforcement cage seam welder comprises a front wall plate, a rear wall plate and a track, wherein the front wall plate and the rear wall plate are sequentially arranged from front to back, a seam welding cylinder capable of rotating around the axis of the front wall plate is arranged in a perforation of the front wall plate, a seam welding flange is fixed on the front end face of the seam welding cylinder, a tendon guiding arm and an electric welder are fixed on the seam welding flange, a central electrode is arranged in the middle of the seam welding cylinder in a penetrating mode, a plurality of conductive copper blocks arranged at intervals along the circumferential direction are fixed on the central electrode, a wire reel is arranged on the rear wall plate in a rotating mode and used for driving the driving motor to rotate the wire reel, a traction trolley which is driven by a traction mechanism and can move back and forth is arranged on the track in a sliding mode, a tendon locking clamp is arranged on the traction trolley, the seam welding cylinder drives the tendon to rotate around the rib plate to wind a stirrup on a main tendon of a reinforcement cage, and the electric welder welds the stirrup positioned between a welding head and the conductive copper blocks together with the main tendon. And pulling the main reinforcement of the reinforcement cage while winding the stirrup outside the main reinforcement and welding the stirrup and the main reinforcement together at the corresponding position. For example, the roll welding machine structure is disclosed in the Chinese utility model patent with the patent number ZL201721575617.1 (publication number CN207642463U) "steel reinforcement cage roll welding machine", and the Chinese invention patent with the application number CN202111159849.X (publication number CN113681142A) "material tray input torque control system and steel reinforcement cage".
Because of the electrically conductive copper billet protrusion electrically conductive dish perisporium, under normal condition, the main muscle can paste the top surface removal of electrically conductive copper billet, but when special specification steel reinforcement cage, its main muscle has the swivel nut for the centre, when the main muscle removes to the swivel nut and is close to electrically conductive copper billet position, bellied electrically conductive copper billet can block main muscle removal, perhaps forces to make the main muscle hunch-up, and influence the steel reinforcement cage quality.
In summary, there is still a need for further improvement of the center electrode of the seam welder.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a variable-diameter seam welder central electrode with a reasonable structural design aiming at the current situation of the prior art, so that a main rib with a thread sleeve can smoothly pass through the top surface of a welding block without deformation.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a seam welder center electrode of variable diameter which characterized in that: comprises a central shaft sleeve; the welding blocks are movably arranged on the wall of the shaft sleeve in a penetrating way and can radially extend and retract relative to the middle shaft sleeve; each elastic piece correspondingly acts on one welding block to enable the welding block to keep a radially inwards contracted state; the transmission shaft is arranged in the middle shaft sleeve, and the rear end of the transmission shaft is connected with a rocker arm used for driving the transmission shaft to rotate around the axis of the transmission shaft; the adjusting block is sleeved on the transmission shaft and can be driven by the transmission shaft to rotate, a plurality of groups of step parts are formed on the peripheral wall of the adjusting block, the high-level surface and the low-level surface of each step part are in inclined plane or arc surface transition, the inner end of each welding block is abutted against one group of step parts, the inner end of each welding block is abutted against the high-level surface and then is in a radial outward extending state, and the inner end of each welding block is abutted against the low-level surface and then is in a radial inward contracting state.
The improved structure is characterized in that the elastic piece is a steel sheet, the length direction of the steel sheet is arranged along the axial direction of the middle shaft sleeve, one end of the steel sheet is fixed with the middle shaft sleeve, the welding block comprises a copper block and an ejector rod, the ejector rod penetrates through the wall of the middle shaft sleeve and can radially stretch out and draw back, the inner end of the ejector rod is abutted against a step part on the adjusting block, the other end of the steel sheet is located between the top surfaces of the copper block and the ejector rod, and the copper block is fixed with the steel sheet and the ejector rod through screws. The steel sheet not only plays a role in resetting the elastic piece, but also has a guiding function on the movement of the main rib; the welding block is composed of a copper block and an ejector rod, the ejector rod is made of steel materials, only the part needing to be conductive is set to be the copper block, cost can be reduced, the ejector rod needs to be in friction with the adjusting block, and the ejector rod made of the steel materials is better in strength.
As a specific application, the cross section of the middle shaft sleeve is square, the four corner positions of the middle shaft sleeve are respectively provided with one ejector rod in a penetrating manner, and each side edge of the middle shaft sleeve is provided with at least one ejector rod. The central electrode is used for manufacturing a square pile, and the middle shaft sleeve can also be round, so that a round pipe pile can be manufactured.
Corresponding to the characteristics of a square middle shaft sleeve, as an improvement, the peripheral wall of the adjusting block is provided with a plurality of convex parts arranged at intervals along the circumference, a groove is formed between every two adjacent convex parts, and the top surface of each convex part and the inner bottom surface of the groove are provided with the step parts. Because the corner position of the middle shaft sleeve is far away from the rotation axis of the rotating shaft, the peripheral wall of the adjusting block is provided with four convex parts, so that the ejector rod at the corner position does not need to be lengthened, and in addition, the convex parts and the ejector rod at the side position have a blocking function, so that the rotation of the adjusting block is restrained, and the adjusting block is prevented from rotating for 360 degrees.
Preferably, each side edge of the middle shaft sleeve is provided with one ejector rod, two guide blocks arranged at intervals are fixed on each outer wall of the middle shaft sleeve, and a restraining groove for restraining the steel sheet and the ejector rod is formed between every two adjacent guide blocks. The steel sheet and the ejector rod are restrained by the guide block, so that the ejector rod is better ensured to stretch along a preset track.
For the convenience at corner position fixed steel sheet, be fixed with the polylith fixed plate on the telescopic outer wall of above-mentioned well axle, the fixed plate has the slope and extends to the telescopic edge's of well axle installation department, is located the edge the steel sheet is fixed on the installation department.
As an improvement, the left side and the right side of each steel sheet are respectively provided with a guide sheet fixed with the middle shaft sleeve, and the space between the two guide sheets forms a guide groove for guiding the main rib to advance. The guide way conveniently leads the removal of main muscle.
In order to facilitate the sliding of the inner end surface of the ejector rod along the high level surface and the low level surface of the step part, the inner end surface of the ejector rod is an arc surface.
As an improvement, two bearing seats arranged at intervals in the front and back are fixed in the inner cavity of the middle shaft sleeve, the transmission shaft is supported on the bearing seats through bearings, the adjusting block is mounted on the transmission shaft through a key groove structure, and the rear end of the transmission shaft extends out of the middle shaft sleeve and then is connected with the rocker arm. The bearing block is arranged to well support the transmission shaft, the bearing is arranged to be beneficial to driving the transmission shaft to rotate, and the rear end of the transmission shaft extends out of the middle shaft sleeve to be more beneficial to being connected with the rocker arm.
Further improved, the rear end of the middle shaft sleeve is fixedly provided with a rib penetrating disk, and a plurality of rib penetrating holes are formed in the rib penetrating disk. Wear the muscle dish and do benefit to the direction of main muscle, wear the muscle dish and fix on well axle sleeve, guarantee that both relative position is accurate, need not to wear the muscle dish extra setting on other parts.
Compared with the prior art, the utility model has the advantages that: in a welding state at a normal position, the adjusting block rotates to enable the welding block to keep a radial outward extending trend, the main reinforcement can pass along the top surface of the welding block, and the stirrup can be normally welded on the main reinforcement; when the main rib moves to the front of the top surface of the nut, namely the top surface of the welding block, the rocker arm is shifted to drive the adjusting block to rotate by an angle along with the transmission shaft, the welding block is in an inward contraction state, the nut can pass through the top surface of the welding block, the main rib cannot be arched, after the nut passes through the welding block, the rocker arm is shifted reversely to drive the adjusting block to rotate reversely by an angle along with the transmission shaft, and the welding block is in an outward extension state again and can be normally welded.
Drawings
Fig. 1 is a schematic perspective view of a first embodiment of the present invention (the corner solder bumps are in the second position, and the side solder bumps are in the first position);
fig. 2 is a schematic perspective view of a second embodiment of the utility model (the corner solder bumps are in the second position, and the side solder bumps are in the first position);
FIG. 3 is a radial cross-sectional view of an embodiment of the present invention (with the corner solder bumps in the second position and the side solder bumps in the first position);
FIG. 4 is an axial cross-sectional view of an embodiment of the present invention (with the corner solder bumps in the second position and the side solder bumps in the first position);
FIG. 5 is a schematic perspective view of an embodiment of the present invention (with corner solder bumps in a first position and side solder bumps in a second position);
FIG. 6 is a radial cross-sectional view of an embodiment of the present invention (with the corner solder bumps in a first position and the side solder bumps in a second position);
fig. 7 is a schematic perspective view of an adjusting block according to an embodiment of the present invention.
Detailed Description
The utility model is described in further detail below with reference to the accompanying examples.
As shown in FIGS. 1 to 7, the preferred embodiment of the present invention is shown.
The utility model provides a seam welder center electrode of variable diameter which characterized in that: comprises that
The cross section of the middle shaft sleeve 1 in the embodiment of the middle shaft sleeve 1 is square, the whole body is cuboid or square, and the center of the middle shaft sleeve is a strip-shaped cavity with a square cross section.
The welding blocks 2 are movably arranged on the wall of the shaft sleeve 1 in a penetrating mode and can radially extend and retract relative to the shaft sleeve 1.
And each elastic piece correspondingly acts on one welding block 2 to ensure that the welding blocks 2 keep a radial inwards-contracted state.
The transmission shaft 4 is arranged in the middle shaft sleeve 1, the rear end of the transmission shaft 4 is connected with a rocker arm 41 used for driving the transmission shaft 4 to rotate around the axis of the transmission shaft 4, and the rocker arm 41 can swing under the driving of an air cylinder, so that automatic control can be realized.
The adjusting block 5 is sleeved on the transmission shaft 4 and can be driven by the transmission shaft 4 to rotate, a plurality of groups of step parts 51 are formed on the peripheral wall of the adjusting block 5, an inclined surface or an arc surface is formed between the high-position surface 511 and the low-position surface 512 of each step part 51, the inner end of each welding block 2 is abutted against one group of step parts 51, the inner end of each welding block 2 is abutted against the high-position surface 511 and then is in a radially outward extending state, and the inner end of each welding block 2 is abutted against the low-position surface 512 and then is in a radially inward contracting state.
The elastic part is a steel sheet 3, the length direction of the steel sheet 3 is arranged along the axial direction of the middle shaft sleeve 1, one end of the steel sheet 3 is fixed with the middle shaft sleeve 1, the welding block 2 comprises a copper block 21 and an ejector rod 22, the ejector rod 22 penetrates through the wall of the middle shaft sleeve 1 and can radially stretch out and draw back, the inner end of the ejector rod 22 is abutted against the step part 51 on the adjusting block 5, and the inner end face of the ejector rod 22 is an arc-shaped face 221. The other end of the steel sheet 3 is positioned between the copper block 21 and the top surface of the ejector rod 22, and the copper block 21 is fixed with the steel sheet 3 and the ejector rod 22 through screws.
Four corner positions of the middle shaft sleeve 1 are respectively provided with one ejector rod 22 in a penetrating mode, and each side edge of the middle shaft sleeve 1 is provided with at least one ejector rod 22. The peripheral wall of the adjusting block 5 is provided with a plurality of convex parts 52 arranged at intervals along the circumference, a groove 53 is formed between two adjacent convex parts 52, and the top surface of each convex part 52 and the inner bottom surface of the groove 53 are provided with step parts 51. Each side edge of the middle shaft sleeve 1 is provided with a mandril 22, two guide blocks 6 arranged at intervals are fixed on each outer wall of the middle shaft sleeve 1, and a restraining groove for restraining the steel sheet 3 and the mandril 22 is formed between every two adjacent guide blocks 6. The outer wall of the middle shaft sleeve 1 is fixedly provided with a plurality of fixing plates 7, each fixing plate 7 is provided with an installation part 71 obliquely extending to the corner of the middle shaft sleeve 1, and the steel sheets 3 positioned at the corners are fixed on the installation parts 71.
The left side and the right side of each steel sheet 3 are respectively provided with a guide sheet 8 fixed with the middle shaft sleeve 1, and the space between the two guide sheets 8 forms a guide groove for guiding the main rib to advance.
Two bearing seats 9 arranged at a front interval and a rear interval are fixed in the inner cavity of the middle shaft sleeve 1, the transmission shaft 4 is supported on the bearing seats 9 through a bearing, the adjusting block 5 is installed on the transmission shaft 4 through a key groove structure, and the rear end of the transmission shaft 4 extends out of the middle shaft sleeve 1 and then is connected with the rocker arm 41.
The rear end of the middle shaft sleeve 1 is fixedly provided with a bar penetrating disk 10, and the bar penetrating disk 10 is provided with a plurality of bar penetrating holes 101.
The inner end of the solder bump 2 is in a radially inward-contracted state in contact with the lower surface 512.
The working principle and the process of the center electrode are as follows:
in the welding state of the first position, the adjusting block 5 rotates until the inner end of the ejector rod 22 is abutted against the high-level surface 511 of the step part 51, then the adjusting block is in a radial outward extending state, the whole welding block 2 keeps a radial outward extending trend, the main rib can pass along the top surface of the copper block 21 on the welding block 2, and the stirrup can be normally welded on the main rib;
when the main rib moves to the top of the nut, namely, the nut will pass through the top surface of the copper block 21 on the welding block 2, the rocker arm 41 is shifted to drive the adjusting block 5 to rotate by an angle along with the transmission shaft 4, the inner end of the welding block 2 is in a radial inward contraction state after being abutted against the low-position surface 512, the whole welding block 2 keeps a radial inward contraction trend, and the second position state is favorable for the nut to pass through the top surface of the welding block and can not enable the main rib to arch.
When the nut passes through the welding block, the rocker arm 41 is shifted reversely to drive the adjusting block 5 to rotate reversely by an angle along with the transmission shaft 4, and the welding block 2 is in an outward extending state again and is in a first position state, so that normal welding can be realized.
The solder bumps 2 at the corner positions and the solder bumps 2 at the side positions can be in the first position state or the second position state at the same time, and can also be in the first position state and the second position state respectively.
It should be noted that in the description of the present embodiment, the terms "front, back", "left, right", "up, down", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Claims (10)
1. The utility model provides a seam welder center electrode of variable diameter which characterized in that: comprises that
A middle shaft sleeve (1);
the welding blocks (2) are movably arranged on the wall of the shaft sleeve (1) in a penetrating way and can radially extend and retract relative to the shaft sleeve (1);
a plurality of elastic pieces, each elastic piece correspondingly acts on one welding block (2) to enable the welding blocks (2) to keep a radial inward contraction state;
the transmission shaft (4) is arranged in the middle shaft sleeve (1), and the rear end of the transmission shaft (4) is connected with a rocker arm (41) used for driving the transmission shaft (4) to rotate around the axis of the transmission shaft;
the adjusting block (5) is sleeved on the transmission shaft (4) and can be driven to rotate by the transmission shaft (4), a plurality of groups of step parts (51) are formed on the peripheral wall of the adjusting block (5), an inclined surface or an arc surface is in transition between a high-position surface (511) and a low-position surface (512) of each step part (51), the inner end of each welding block (2) is abutted against one group of step parts (51), the inner end of each welding block (2) is abutted against the high-position surface (511) and then is in a radially outward extending state, and the inner end of each welding block (2) is abutted against the low-position surface (512) and then is in a radially inward contracting state.
2. The variable diameter seam welder center electrode of claim 1, wherein: the elastic piece is steel sheet (3), the length direction of steel sheet (3) sets up along the axial of well axle sleeve (1), the one end and the well axle sleeve (1) of steel sheet (3) are fixed, welding block (2) include copper billet (21) and ejector pin (22), the section of thick bamboo wall that the ejector pin (22) were worn to establish in well axle sleeve (1) can radially stretch out and draw back, and the inner of ejector pin (22) is contradicted with step portion (51) on adjusting block (5), the other end of steel sheet (3) is located between the top surface of copper billet (21) and ejector pin (22), and copper billet (21) are fixed through screw and steel sheet (3) and ejector pin (22).
3. The variable diameter seam welder center electrode of claim 2, wherein: the cross section of the middle shaft sleeve (1) is square, the ejector rods (22) are respectively arranged at four corner positions of the middle shaft sleeve (1) in a penetrating mode, and each side edge of the middle shaft sleeve (1) is at least provided with one ejector rod (22).
4. The variable diameter seam welder center electrode of claim 3, wherein: the peripheral wall of the adjusting block (5) is provided with a plurality of convex parts (52) arranged at intervals along the circumference, a groove (53) is formed between every two adjacent convex parts (52), and the top surface of each convex part (52) and the inner bottom surface of each groove (53) are provided with the step parts (51).
5. The variable diameter seam welder center electrode of claim 3, wherein: each side edge of the middle shaft sleeve (1) is provided with one ejector rod (22), two guide blocks (6) arranged at intervals are fixed on each outer wall of the middle shaft sleeve (1), and a restraining groove for restraining the steel sheet (3) and the ejector rod (22) is formed between every two adjacent guide blocks (6).
6. The variable diameter seam welder center electrode of claim 3, wherein: be fixed with polylith fixed plate (7) on the outer wall of well axle sleeve (1), fixed plate (7) have slope and extend to installation department (71) of the edge of well axle sleeve (1), are located the edge steel (3) are fixed on installation department (71).
7. The variable diameter seam welder center electrode of claim 2, wherein: the left side and the right side of each steel sheet (3) are respectively provided with a guide sheet (8) fixed with the middle shaft sleeve (1), and the space between the two guide sheets (8) forms a guide groove for guiding the main rib to advance.
8. The variable diameter seam welder center electrode of claim 3, wherein: the inner end surface of the ejector rod (22) is an arc-shaped surface (221).
9. The variable diameter seam welder center electrode of claim 1, wherein: the inner chamber of well axle sleeve (1) is fixed with bearing frame (9) that two intervals set up around, transmission shaft (4) pass through the bearing and support on bearing frame (9), adjusting block (5) are installed through the keyway structure on transmission shaft (4), the rear end of transmission shaft (4) stretch out well axle sleeve (1) after with rocking arm (41) are connected.
10. The variable diameter seam welder center electrode of claim 1, wherein: the rear end of the middle shaft sleeve (1) is fixed with a bar penetrating disc (10), and a plurality of bar penetrating holes (101) are formed in the bar penetrating disc (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123388732.7U CN216730024U (en) | 2021-12-29 | 2021-12-29 | Variable-diameter seam welder center electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123388732.7U CN216730024U (en) | 2021-12-29 | 2021-12-29 | Variable-diameter seam welder center electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216730024U true CN216730024U (en) | 2022-06-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123388732.7U Active CN216730024U (en) | 2021-12-29 | 2021-12-29 | Variable-diameter seam welder center electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216730024U (en) |
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2021
- 2021-12-29 CN CN202123388732.7U patent/CN216730024U/en active Active
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