Steel cage welding equipment for concrete pile foundation

Abstract

The present invention discloses a steel cage welding device for concrete pile foundation, comprising a counterweight base with an overall long strip structure, wherein a positioning sleeve frame 1 and a sliding sleeve frame 2 are respectively arranged on the upper surface of the counterweight base near both ends thereof, wherein rotating retaining rings of the same size and coaxial are respectively rotatably connected in the circular holes of the positioning sleeve frame 1 and the sliding sleeve frame 2; the main steel bars of the welded steel cage and the outer ring steel bars spirally wound on the outer wall thereof are fixed between the two rotating retaining rings. The steel cage welding device for concrete pile foundation of the present invention can control the extension rod of the hydraulic push rod to extend during welding, so that the M-shaped roller retaining frame squeezes the main steel bars outward from the inside to the outside, and then tightly contacts the outer ring steel bars spirally wound on the outer layer.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, and in particular to a steel cage welding equipment for a concrete pile foundation. Background Art

[0002] Steel cages are often used in modern engineering construction. They mainly serve as structural skeletons in buildings. In pile foundation projects in the fields of bridges, highways, and buildings, steel cages are placed in pile holes and bear the load together with the pile concrete to improve the bearing capacity and stability of the pile foundation.

[0003] At present, a roll welding machine is usually used for processing, through which a plurality of main bars are connected into a rigid frame (i.e., cage bars), and concrete can be further poured into the frame to form concrete piles.

[0004] After searching, it is found that the existing rolling welding machines have achieved a high degree of automation. When welding, it is only necessary to control the welding position of the electric welder to intermittently reach the criss-cross spot welding position and touch it to complete the welding. This welding method will inevitably press the main steel bars that are axially parallel to each other to the middle when winding the outer steel bars, thereby causing the weld to become larger, which is extremely likely to cause a false weld during welding. Therefore, we need a steel cage welding equipment for concrete pile foundations that can reduce the increase in welds caused by winding. Summary of the invention

[0005] Aiming at the technical problem that the existing steel cage processing equipment easily causes the welds at the junction to be of different sizes and uneven welding quality when welding and winding the outer steel bars, the present invention adopts the following technical solution:

[0006] A steel cage welding device for a concrete pile foundation comprises a counterweight base with an overall long strip structure, wherein a positioning sleeve frame 1 and a sliding sleeve frame 2 are respectively arranged on the upper surface of the counterweight base near both ends thereof, wherein rotating collars of the same size and coaxial are respectively rotatably connected in the circular holes of the positioning sleeve frame 1 and the sliding sleeve frame 2; the main steel bars of the welded steel cage and the outer ring steel bars spirally wound on the outer wall thereof are fixed between the two rotating collars; a guide rail is reserved near the front edge of the upper surface of the counterweight base, and a driving slide which moves with the welding position is arranged on the guide rail; a U-shaped clamping table with an upward opening and a groove-shaped structure is fixed on the upper surface of the driving slide, and a spot welding mechanism is arranged on the top of the U-shaped clamping table;

[0007] A horizontally extending push plate is fixed to one end of the side surface of the driving slide close to the positioning sleeve frame, and a folding support rod is fixed to the end of the push plate away from the driving slide, and a connecting push rod horizontally extending to the inside of the steel cage is fixed to the side of the folding support rod, and a sliding support block is arranged at the end of the connecting push rod close to the spot welding position; and a C-shaped sliding tube with an opening facing the spot welding position is sleeved on the outer wall of the sliding support block; a hydraulic push rod is embedded on the side of the sliding block away from the bottom of the groove; and an M-shaped roller support frame is fixed to the end of the extension rod of the hydraulic push rod.

[0008] Preferably, four roller grooves are opened on the side of the sliding block close to the bottom of the groove, and the roller grooves are located on the side away from the M-shaped roller clamping frame. Rollers are arranged in the roller grooves, and the rolling direction of the rollers is consistent with the overall sliding direction of the sliding block; the friction force can be reduced during advancement.

[0009] Preferably, two grooved wheels are provided on the side of the M-shaped roller clamping frame away from the sliding block; and the grooved wheels are used to clamp the main steel bars; three sliding rods parallel to each other are fixed on the side of the M-shaped roller clamping frame close to the sliding block, and a guide hole compatible with the sliding rod is opened on the side of the sliding block close to the M-shaped roller clamping frame; through the grooved wheels, the main steel bars can be pushed outward in the radial direction during clamping, thereby preventing the distance between two adjacent main steel bars from changing, that is, preventing the main steel bars from being squeezed and skewed.

[0010] Preferably, an L-shaped bracket is fixed to one end of the upper surface of the counterweight base close to the positioning sleeve frame, and two horizontally extending ground rails are fixed to the other end of the counterweight base, and the same T-shaped clamping platform is slidably fixed to the upper surfaces of the two ground rails, and one end of the C-shaped slide tube close to the L-shaped bracket is welded and fixed to the L-shaped bracket, and a sliding hole is opened at the top of the T-shaped clamping platform, and the other end of the C-shaped slide tube is slidably inserted into the sliding hole.

[0011] Preferably, bearing slots are provided on both sides of the positioning sleeve frame 1 and the sliding sleeve frame 2 near the edges of the circular holes; and the bearing slots on both sides are respectively clamped with bearing 1 and bearing 2; and are respectively used to bear radial thrust and axial thrust.

[0012] Preferably, a driven gear ring is fixed to one end of the rotating retaining ring in the sliding sleeve frame 2 which is away from the counterweight base; and two anti-slip sliding seats are fixed to the bottom end of the sliding sleeve frame 2, and the anti-slip sliding seats are slidably clamped on the ground rail, and a motor seat is fixed to the upper surface of one of the anti-slip sliding seats, and a reduction motor 2 is fixed to the top of the motor seat, and a worm gear meshing with the driven gear ring is fixed to the top of the output shaft of the reduction motor 2.

[0013] Preferably, a plurality of feeding through holes are formed at the end of the rotating collar located in the second sliding sleeve frame, and a plurality of fastening sleeves symmetrically distributed in the center are fixed to one end of the rotating collar close to the counterweight base; the position of the fastening sleeves matches the position of the feeding through holes, and the side surfaces of each fastening sleeve are screwed with fixed self-locking bolts; when feeding the main steel bars, it is only necessary to horizontally insert the main steel bars through the feeding through holes from the side away from the counterweight base, and then guide its end to a place in the positioning sleeve frame and fix it.

[0014] Preferably, a plurality of clamping sleeve assemblies are provided on the side of the rotating collar in the positioning sleeve frame 1 close to the sliding sleeve frame 2, and the number of the clamping sleeve assemblies is the same as the number of the fastening sleeves; through the provided clamping sleeve assemblies, when inserting the main steel bar, it is only necessary to insert its end into the clamping sleeve assembly and fix it from the fastening sleeve at the other end.

[0015] Preferably, the spot welding mechanism also includes guide guard plates fixed on the top of the two side walls of the U-shaped fixture and parallel to each other, and two annular guide grooves of equal size and symmetry are opened on the opposite sides of the two guide guard plates, the same electric welding machine body is slidably clamped between the two annular guide grooves, and two guide protrusions extending into the annular guide grooves are fixed on both sides of the electric welding machine body; the spacing between the two guide protrusions on the same side is equal to the distance between the centers of the two annular guide grooves; a propulsion motor is fixed on the side of the upper surface of the U-shaped fixture away from the guide guard plate, and a rotating wheel is fixed on the top of the output shaft of the propulsion motor, and a connecting rod is hinged at the circumferential edge of the rotating wheel, and the other end of the connecting rod is connected to the surface of the electric welding machine body; through the setting of the propulsion motor, the overall circumference of the electric welding machine body can be allowed to run, thereby driving the electric welding machine body to perform intermittent spot welding on the spot welding positions.

[0016] Preferably, a straight groove is reserved on one side of the electric welding machine body close to the welding position, and two swing springs are fixed to the bottom of the straight groove, and the same welding head is fixed to the end of the swing spring; during welding, the contact time between the welding head and the spot welding position can be increased without stopping the machine, thereby improving the welding quality.

[0017] The beneficial effects of the present invention are:

[0018] 1. By setting a sliding block that is slidably connected to the inside of the steel cage near the spot welding position, the extension rod of the hydraulic push rod can be controlled to extend during welding. At this time, the M-shaped roller clamping frame can squeeze the main steel bars outward from the inside to the outside, and then tightly contact the outer ring steel bars of the outer spirally wrapped outer layer, and then assist the spot welding mechanism in accurate and high-quality welding; thereby ensuring the consistency of the firmness of each welding point and improving the overall tightness.

[0019] 2. By setting the grooved push wheel, the main steel bar can be pushed outward in the radial direction when tightening, thereby preventing the distance between two adjacent main steel bars from changing, that is, preventing the main steel bars from being squeezed and skewed.

[0020] 3. The T-shaped clamping platform and L-shaped bracket can not only generate a strong thrust when clamping the main steel bar, but also one end can be disassembled to fit the inner clamping ring. When the overall length of the steel cage is long, the inner clamping ring needs to be welded at intervals to start the initial shaping.

[0021] 4. By setting a sliding anti-drop slide seat, after welding, the steel cage can be directly lifted first, and then the sliding sleeve frame 2 can be slid along the ground rail, and finally the welded steel barrel can be moved along the extension direction of the C-shaped slide tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the steel cage welding equipment for concrete pile foundation proposed by the present invention;

[0023] Figure 2 This is a schematic diagram of the other side structure of the steel cage welding equipment for concrete pile foundation proposed by the present invention during welding;

[0024] Figure 3 A side view of a steel cage welding device for concrete pile foundations provided by the present invention;

[0025] Figure 4 It is a schematic diagram of the explosion structure of the tightening mechanism in the steel cage welding equipment for concrete pile foundation proposed by the present invention;

[0026] Figure 5 This is a schematic diagram of the overall structure of the steel cage welding equipment for concrete pile foundation proposed by the present invention before welding;

[0027] Figure 6 This is a schematic diagram of the overall structure of the installation position of the electric welding machine body in the steel cage welding equipment for concrete pile foundation proposed by the present invention;

[0028] Figure 7 It is a three-dimensional structural schematic diagram of a U-shaped clamping table in the steel cage welding equipment for concrete pile foundation proposed by the present invention;

[0029] Figure 8 The diagram is a schematic diagram of the explosion structure of the rotating retaining ring in the welding equipment for the steel cage for concrete pile foundation proposed by the present invention.

[0030] In the figure: 1, counterweight base; 2, U-shaped clamping platform; 3, propulsion motor; 4, guide guard plate; 401, annular guide groove; 5, driving slide; 6, push plate; 7, connecting push rod; 8, L-shaped clamping frame; 9, positioning sleeve frame 1; 901, feeding perforation; 10, outer ring steel bar; 11, sliding block; 1101, M-shaped roller clamping frame; 1102, grooved wheel; 1103, sliding rod; 1104, guide hole; 1105, hydraulic push rod; 12, C-shaped sliding tube; 13. main steel bar; 14. welding machine body; 1401. swing spring; 1402. welding head; 1403. guide protrusion; 15. inner clamping ring; 16. fastening sleeve; 17. sliding sleeve frame 2; 18. bearing 1; 19. rotating clamping ring; 20. T-shaped clamping table; 21. ground rail; 22. reduction motor 2; 2201. worm; 23. driven gear ring; 24. clamping sleeve assembly; 25. bearing slot; 26. bearing 2. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] Reference Figure 1-8 The steel cage welding equipment for concrete pile foundation provided by the present invention comprises a counterweight base 1 which is an overall long strip structure, and a positioning sleeve frame 9 and a sliding sleeve frame 17 which are parallel to each other are respectively arranged near the two ends of the upper surface of the counterweight base 1, and rotating collars 19 of the same size and coaxial are respectively rotatably connected in the circular holes of the positioning sleeve 9 and the sliding sleeve 17; the main steel bars 13 of the welded steel cage and the outer ring steel bars 10 which are spirally coiled on the outer wall thereof are fixed between the two rotating collars 19; a guide rail is reserved near the front edge of the upper surface of the counterweight base 1, and a driving slide 5 which moves with the welding position is arranged on the guide rail, and a U-shaped clamping table 2 with an opening upward and a groove-shaped structure is fixed on the upper surface of the driving slide 5, and a spot welding mechanism is arranged on the top of the U-shaped clamping table 2.

[0033] At the same time, a horizontally extending push plate 6 is fixed to one end of the side of the driving slide 5 close to the positioning sleeve frame 9, and a folding support rod is fixed to the end of the push plate 6 away from the driving slide 5, and a connecting push rod 7 extending horizontally to the inside of the steel cage is fixed to the side of the folding support rod, and a sliding support block 11 is arranged at the end of the connecting push rod 7 near the spot welding position; and a C-shaped sliding tube 12 with an opening facing the spot welding position is sleeved on the outer wall of the sliding support block 11; a hydraulic push rod 1105 is embedded on the side of the sliding support block 11 away from the bottom of the groove; and an M-shaped roller support frame 1101 is fixed to the end of the extension rod of the hydraulic push rod 1105.

[0034] By setting a sliding abutment 11 that is slidably connected to the inside of the steel cage near the spot welding position, the extension rod of the hydraulic push rod 1105 can be controlled to extend during welding. At this time, the M-shaped roller abutment frame 1101 can squeeze the main steel bar 13 outward from the inside to the outside, and then tightly contact the outer ring steel bar 10 that is spirally wrapped on the outer layer, and then assist the spot welding mechanism to perform accurate and high-quality welding, ensuring that the firmness of each welding point is consistent, so as to improve the overall tightness.

[0035] In some embodiments, four roller grooves are opened on the side of the sliding block 11 close to the bottom of the groove, and the roller grooves are located on the side away from the M-shaped roller clamping frame 1101. Rollers are arranged in the roller grooves, and the rolling direction of the rollers is consistent with the overall sliding direction of the sliding block 11, which can reduce friction during advancement.

[0036] Reference Figure 4 Two grooved wheels 1102 are arranged on the side of the M-shaped roller clamping frame 1101 away from the sliding block 11, and the grooved wheels 1102 are used to clamp the main steel bar 13; three parallel sliding rods 1103 are fixed on the side of the M-shaped roller clamping frame 1101 close to the sliding block 11, and a guide hole 1104 compatible with the sliding rod 1103 is opened on the side of the sliding block 11 close to the M-shaped roller clamping frame 1101, and the sliding block 11 and the parts that move with it constitute a clamping mechanism.

[0037] It should be noted that, by means of the grooved abutting wheel 1102, the main steel bars 13 can be pushed outward in the radial direction when tightened, thereby preventing the distance between two adjacent main steel bars 13 from changing, that is, preventing the main steel bars 13 from being squeezed and distorted.

[0038] Further, see Figure 4 An L-shaped bracket 8 is fixed to one end of the upper surface of the counterweight base 1 close to the positioning sleeve frame 9, and two horizontally extending ground rails 21 are fixed to the other end of the counterweight base 1, and the same T-shaped clamping platform 20 is slidably fixed on the upper surfaces of the two ground rails 21. The end of the C-shaped sliding tube 12 close to the L-shaped bracket 8 is welded and fixed to the L-shaped bracket 8, and a sliding hole is opened at the top of the T-shaped clamping platform 20, and the other end of the C-shaped sliding tube 12 is slidably inserted into the sliding hole.

[0039] By setting the T-shaped clamping platform 20 and the L-shaped bracket 8, not only can a strong thrust be generated when clamping the main steel bar 13, but one end thereof can be disassembled to be connected to the inner clamping ring 15. When the overall length of the steel cage is long, the inner clamping ring 15 needs to be welded at a certain distance for initial shaping.

[0040] Reference Figure 1 and Figure 8The positioning sleeve 1 9 and the sliding sleeve 2 17 are provided with bearing slots 25 on both sides near the edges of the circular holes; and the bearing slots 25 on both sides are respectively connected with the bearing 1 18 and the bearing 2 26; respectively used to bear the radial thrust and the axial thrust.

[0041] Reference Figure 2-Figure 3 A driven gear ring 23 is fixed to the end of the rotating ring 19 in the sliding frame 17 away from the counterweight base 1; and two anti-slip sliding seats are fixed to the bottom end of the sliding frame 17, and the anti-slip sliding seats are slidably connected to the ground rail 21, and a motor seat is fixed to the upper surface of one of the anti-slip sliding seats, and a reduction motor 22 is fixed to the top of the motor seat, and a worm 2201 meshing with the driven gear ring 23 is fixed to the top of the output shaft of the reduction motor 22.

[0042] It can be understood that by setting a sliding anti-slip sliding seat, after the welding is completed, the steel cage can be directly lifted first, and then the sliding sleeve frame 17 can be slid along the ground rail 21, and finally the welded steel barrel can be moved along the extension direction of the C-shaped sliding tube 12.

[0043] Reference Figure 2 and Figure 8 The end of the rotating ring 19 located in the sliding frame 17 is provided with multiple feeding holes 901, and a plurality of fastening sleeves 16 symmetrically distributed in the center are fixed to the end of the rotating ring 19 close to the counterweight base 1; the position of the fastening sleeve 16 is adapted to the position of the feeding hole 901, and the side of each fastening sleeve 16 is screwed with a fixed self-locking bolt; when feeding the main steel bar 13, it is only necessary to horizontally insert the main steel bar 13 from the side away from the counterweight base 1 through the feeding hole 901, and then guide its end to the positioning frame 9 and fix it.

[0044] Reference Figure 2 and Figure 8 A plurality of clamping sleeve assemblies 24 are provided on one side of the rotating collar 19 in the positioning sleeve frame 9 close to the sliding sleeve frame 2 17, and the number of the clamping sleeve assemblies 24 is the same as the number of the fastening sleeves 16; through the provided clamping sleeve assemblies 24, when the main steel bar 13 is inserted, it is only necessary to insert its end into the clamping sleeve assembly 24 and fix it from the fastening sleeve 16 at the other end.

[0045] In some other embodiments, the spot welding mechanism further includes a guide guard plate 4 fixed to the top of the two side walls of the U-shaped clamping platform 2 and parallel to each other. Figure 5-Figure 7 .

[0046] Two annular guide grooves 401 of equal size and symmetrical to each other are formed on opposite sides of the two guide guard plates 4, and the same welding machine body 14 is slidably clamped between the two annular guide grooves 401, and two guide protrusions 1403 extending into the annular guide grooves 401 are fixed on both sides of the welding machine body 14; the spacing between the two guide protrusions 1403 on the same side is equal to the distance between the centers of the two annular guide grooves 401; a propulsion motor 3 is fixed on the side of the upper surface of the U-shaped card table 2 away from the guide guard plate 4, and a rotating wheel is fixed on the top of the output shaft of the propulsion motor 3, and a connecting rod is hinged at the circumferential edge of the rotating wheel, and the other end of the connecting rod is connected to the surface of the welding machine body 14; through the setting of the propulsion motor 3, the overall circumference of the welding machine body 14 can be allowed to run, thereby driving the welding machine body 14 to perform intermittent spot welding on the spot welding positions.

[0047] Reference Figure 6 A straight groove is reserved on one side of the welding machine body 14 near the welding position, and two swing springs 1401 are fixed to the bottom of the straight groove, and the same welding head 1402 is fixed to the end of the swing spring 1401.

[0048] Through the above arrangement, during welding, the contact time between the welding head 1402 and the spot welding position can be increased without stopping the machine, thereby improving the welding quality.

[0049] Before the device is used, the sliding sleeve frame 17 clamps the T-shaped clamping platform 20 in a position away from the counterweight base 1. At this time, the inner clamping ring 15 used for internal support is first sleeved in the C-shaped sliding tube 12 from the end away from the L-shaped bracket 8, and then the sliding sleeve frame 17 is slid to the predetermined position, and then the main steel bar 13 is introduced from the feeding hole 901. The inserted main steel bar 13 is continuously pushed forward until its end reaches the end of the clamping sleeve assembly 24 at the positioning sleeve frame 1 9. At this time, its end is inserted into the clamping sleeve assembly 24 and fixed from the fastening sleeve 16 at the other end; this is done until all the main steel bars are fixed. After the ribs 13 are fastened in place, the inner clamping ring 15 is welded from the inside at a fixed distance, and then the outer ring of steel bars 10 can be coiled and spot welded at the same time; by setting a sliding block 11 that is slidably connected to the inside of the steel cage near the spot welding position, during welding, the extension rod of the hydraulic push rod 1105 is controlled to extend, and at this time the M-shaped roller clamping frame 1101 can squeeze the main steel bars 13 outward from the inside to the outside, and then tightly contact with the outer layer of the outer ring of steel bars 10 that are spirally wrapped, and then can assist the spot welding mechanism in accurate and high-quality welding; thereby ensuring that the firmness of each welding point is consistent; to improve the overall tightness.

[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A steel cage welding device for concrete pile foundation, comprising a counterweight base (1) having an overall long strip structure, wherein a first positioning sleeve frame (9) and a second sliding sleeve frame (17) parallel to each other are respectively arranged on the upper surface of the counterweight base (1) near both ends, wherein the counterweight base (1) is characterized in that: The circular holes of the positioning sleeve frame 1 (9) and the sliding sleeve frame 2 (17) are respectively connected to rotating retaining rings (19) of the same size and coaxial; the two rotating retaining rings (19) are used to fix the main steel bars (13) of the welded steel cage and the outer ring steel bars (10) wound in a spiral shape on the outer wall; a guide rail is reserved on the upper surface of the counterweight base (1) near the front edge, and a driving slide (5) is arranged on the guide rail to move with the welding position, and a U-shaped clamping table (2) with an opening upward and a groove-shaped structure is fixed on the upper surface of the driving slide (5), and a spot welding mechanism is arranged on the top of the U-shaped clamping table (2); the driving slide ( A horizontally extending push plate (6) is fixed to one end of the side of the steel cage (5) close to the positioning sleeve frame (9), and a folding support rod is fixed to one end of the push plate (6) away from the driving slide (5), and a connecting push rod (7) extending horizontally toward the inside of the steel cage is fixed to the side of the folding support rod, and a sliding support block (11) is arranged at the end of the connecting push rod (7) close to the spot welding position; and a C-shaped sliding tube (12) with an opening facing the spot welding position is sleeved on the outer wall of the sliding support block (11); a hydraulic push rod (1105) is embedded on the side of the sliding support block (11) away from the bottom of the groove; and an M-shaped roller support frame (1101) is fixed to the end of the extension rod of the hydraulic push rod (1105).

2. The steel cage welding equipment for concrete pile foundation according to claim 1 is characterized in that: The sliding block (11) has four roller grooves on one side close to the groove bottom, and the roller grooves are located on the side away from the M-shaped roller support frame (1101). Rollers are arranged in the roller grooves, and the rolling direction of the rollers is consistent with the overall sliding direction of the sliding block (11).

3. The steel cage welding equipment for concrete pile foundation according to claim 2 is characterized in that: The M-shaped roller abutting frame (1101) is provided with two grooved abutting wheels (1102) on a side away from the sliding abutting block (11); and the grooved abutting wheels (1102) are used to clamp the main steel bars (13); three mutually parallel sliding rods (1103) are fixed on a side of the M-shaped roller abutting frame (1101) close to the sliding abutting block (11), and a guide hole (1104) adapted to the sliding rod (1103) is opened on a side of the sliding abutting block (111) close to the M-shaped roller abutting frame (1101).

4. The steel cage welding equipment for concrete pile foundation according to claim 1 is characterized in that: An L-shaped bracket (8) is fixed to one end of the upper surface of the counterweight base (1) near the positioning sleeve frame (9), and two horizontally extending ground rails (21) are fixed to the other end of the counterweight base (1), and a same T-shaped abutting platform (20) is slidably fixed to the upper surfaces of the two ground rails (21), and one end of the C-shaped sliding tube (12) near the L-shaped bracket (8) is welded and fixed to the L-shaped bracket (8), and a sliding insertion hole is opened at the top of the T-shaped abutting platform (20), and the other end of the C-shaped sliding tube (12) is slidably inserted into the sliding insertion hole.

5. The steel cage welding equipment for concrete pile foundation according to claim 1 is characterized in that: The two sides of the positioning sleeve frame 1 (9) and the sliding sleeve frame 2 (17) are both provided with bearing clamping grooves (25) near the edges of the circular holes; and the bearing clamping grooves (25) on the two sides are respectively clamped with the bearing 1 (18) and the bearing 2 (26).

6. The steel cage welding equipment for concrete pile foundation according to claim 5 is characterized in that: A driven gear ring (23) is fixed to one end of the rotating ring (19) in the sliding sleeve frame (17) away from the counterweight base (1); and two anti-slip sliding seats are fixed to the bottom end of the sliding sleeve frame (17), and the anti-slip sliding seats are slidably clamped on the ground rail (21), and a motor seat is fixed to the upper surface of one of the anti-slip sliding seats, and a reduction motor (22) is fixed to the top of the motor seat, and a worm (2201) meshing with the driven gear ring (23) is fixed to the top of the output shaft of the reduction motor (22).

7. The steel cage welding equipment for concrete pile foundation according to claim 6 is characterized in that: The end of the rotating collar (19) located in the second sliding sleeve frame (17) is provided with a plurality of feeding through holes (901), and a plurality of fastening sleeves (16) distributed symmetrically in the center are fixed to one end of the rotating collar (19) close to the counterweight base (1); the position of the fastening sleeves (16) is matched with the position of the feeding through holes (901), and the side surface of each fastening sleeve (16) is screwed with a fixed self-locking bolt.

8. The steel cage welding equipment for concrete pile foundation according to claim 7 is characterized in that: A plurality of clamping sleeve assemblies (24) are arranged on one side of the rotating collar (19) in the first positioning sleeve frame (9) close to the second sliding sleeve frame (17), and the number of the clamping sleeve assemblies (24) is the same as the number of the fastening sleeves (16).

9. The steel cage welding equipment for concrete pile foundation according to claim 1, characterized in that: The spot welding mechanism also includes guide guard plates (4) fixed on the top ends of the two side walls of the U-shaped fixture (2) and parallel to each other, and two annular guide grooves (401) of equal size and symmetrical to each other are opened on opposite sides of the two guide guard plates (4), and a same electric welding machine body (14) is slidably clamped between the two annular guide grooves (401), and two guide protrusions (1403) extending into the annular guide grooves (401) are fixed on both sides of the electric welding machine body (14); the spacing between the two guide protrusions (1403) on the same side is equal to the distance between the centers of the two annular guide grooves (401); a propulsion motor (3) is fixed on the side of the upper surface of the U-shaped fixture (2) away from the guide guard plates (4), and a rotating wheel is fixed on the top end of the output shaft of the propulsion motor (3), and a connecting rod is hinged at the circumferential edge of the rotating wheel, and the other end of the connecting rod is connected to the surface of the electric welding machine body (14).

10. The steel cage welding equipment for concrete pile foundation according to claim 9, characterized in that: A straight groove is reserved on one side of the electric welder body (14) close to the welding position, and two swing springs (1401) are fixed to the bottom of the straight groove, and the same welding head (1402) is fixed to the end of the swing spring (1401).

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