CN221209633U - Steel pipe expanding guide feeding mechanism - Google Patents

Abstract

The utility model relates to the field of steel pipe machining, in particular to a steel pipe expanding guide feeding mechanism. Technical problems: the steel pipe is difficult to rapidly guide and feed in the steel pipe expanding processing process, the pipe expanding work is difficult to be completed in the steel pipe guiding and moving process, and the pipe expanding and blanking efficiency cannot be improved. The technical scheme is as follows: a steel pipe expanding guide feeding mechanism comprises a supporting component. According to the utility model, the steel pipe is moved into the clamping assembly through the auxiliary assembly and the heating assembly, the heating assembly is started to heat the steel pipe, the clamping assembly is started to clamp the steel pipe, the transferring assembly is started to move the clamping assembly, the steel pipe is moved to the outside of the movable pipe expanding assembly, the movable pipe expanding assembly is started to squeeze the steel pipe from inside to outside to expand the pipe, and the problems that in the steel pipe expanding processing process, quick guiding and feeding of the steel pipe are difficult, pipe expanding work is difficult to complete in the steel pipe guiding and moving process, and the pipe expanding blanking efficiency cannot be improved are solved.

Description

Steel pipe expanding guide feeding mechanism

Technical Field

The utility model belongs to the field of steel pipe machining, and particularly relates to a steel pipe expanding guide feeding mechanism.

Background

In the production and processing process of the steel pipe, the steel pipe is often required to be expanded, and the steel pipe is heated and then expanded at present, but in the steel pipe expanding and processing process, the steel pipe is difficult to rapidly guide and feed, the pipe expanding work is difficult to be completed in the steel pipe guiding and moving process, and the pipe expanding and blanking efficiency cannot be improved.

Disclosure of utility model

In order to solve the problems that in the steel pipe expanding processing process, quick guiding and feeding of the steel pipe are difficult, pipe expanding work is difficult to complete in the steel pipe guiding and moving process, and pipe expanding and blanking efficiency cannot be improved.

The technical scheme of the utility model is as follows: a steel pipe expanding guide feeding mechanism comprises a supporting component; the device also comprises a movable pipe expanding assembly, a heating assembly, an auxiliary assembly, a transferring assembly and a clamping assembly; the upper end of the supporting component is provided with a movable pipe expanding component for movably expanding the steel pipe; the upper end of the supporting component is provided with a heating component; the rear end of the supporting component is provided with an auxiliary component; the upper end of the supporting component is provided with a transfer component for moving the steel pipe; the transfer assembly is provided with a clamping assembly for clamping the steel pipe.

Preferably, when in use, firstly, the steel pipe is moved into the clamping assembly through the auxiliary assembly and the heating assembly, the heating assembly is started to heat the steel pipe, then the clamping assembly is started to clamp the steel pipe, the transfer assembly is started to move the clamping assembly, so that the clamped steel pipe can be moved to the outside of the movable pipe expanding assembly, the movable pipe expanding assembly is started to extrude the steel pipe from inside to outside, the problems that in the steel pipe expanding machining process, the steel pipe is difficult to rapidly guide and feed, the pipe expanding work is difficult to complete in the steel pipe guiding and moving process, and the pipe expanding blanking efficiency cannot be improved are solved.

Preferably, the supporting component comprises a supporting block, a supporting plate, a first electric cylinder, a movable block, a U-shaped block, a limiting hole, a limiting groove and a limiting block; the upper end of the supporting block is fixedly connected with a supporting plate; the right edge of the upper end of the supporting plate is fixedly connected with a first electric cylinder; the left end of the first electric cylinder is fixedly provided with a movable block; the upper end of the supporting block is movably provided with a U-shaped block; the groove on the U-shaped block is attached to the outer wall of the movable block; limiting holes are formed in the front end and the rear end of the U-shaped block in a penetrating mode; the upper end and the lower end of the supporting plate are provided with uniformly distributed limiting grooves in a penetrating way; the lower end of the movable block is fixedly connected with uniformly distributed limiting blocks; the front and back both ends of stopper and the front and back both ends inner wall of spacing groove laminate mutually, when needs remove the movable block, open first electronic jar and make the telescopic link of first electronic jar drive the movable block and remove, can adjust the position of movable block, and the suitable position at the movable block outer wall can be placed fast to the U type piece.

Preferably, the movable pipe expanding assembly comprises a fixed block, a first motor, a first screw rod body, a smooth rod, a first screw rod nut, a second electric cylinder and a first clamping block; the upper end of the supporting plate is fixedly connected with a fixed block; the front end of the fixed block is fixedly connected with a first motor; the rear end of the output shaft of the first motor penetrates through the fixed block and is fixedly connected with a first screw rod body; the rear end of the first screw rod body is fixedly connected with a smooth rod; the outer wall of the first screw rod body is movably provided with a first screw rod nut; the left end and the right end of the first screw nut are fixedly connected with second electric cylinders; a first clamping block is fixedly connected to the telescopic rod of the second electric cylinder; when the first motor is used for driving the first screw rod body to rotate, the position of the movable block is adjusted, the U-shaped block is placed on the outer wall of the movable block, the position of the U-shaped block is adjusted along the outer wall of the movable block, the outer wall of the optical slide rod is attached to the inner wall of the U-shaped block, the first motor is started to enable the first screw rod body to rotate, the first screw rod nut moves along the outer wall of the first screw rod body, the second electric cylinders in the opposite directions are started, the telescopic rods of the second electric cylinders drive the first clamping blocks to move in the direction away from the first screw rod body, extrusion pipe expansion can be carried out on the inner wall of the steel pipe, and movable extrusion pipe expansion is achieved.

Preferably, the heating assembly comprises a first bottom plate, a supporting table, a fixed cover, an intermediate frequency heating coil and a first supporting body; the rear end of the supporting block is fixedly connected with a first bottom plate; the upper end of the first bottom plate is fixedly connected with a supporting table; the upper end of the supporting table is fixedly connected with a fixed cover; the inner wall of the fixed cover is fixedly connected with an intermediate frequency heating coil; the upper end rigid coupling of first bottom plate has first supporter, and the steel pipe passes the inside of fixed cover and intermediate frequency heating coil and places in the upper end of first supporter, can conveniently carry out stable support to the steel pipe, opens intermediate frequency heating coil and can heat the steel pipe.

Preferably, the auxiliary assembly comprises a second base plate and a second support body; the rear end of the first bottom plate is fixedly connected with a second bottom plate; the upper end of the second bottom plate is fixedly connected with a second supporting body; the upper end of the second support body and the upper end of the first support body are in the same plane, and the steel pipe is placed at the upper ends of the first support body and the second support body, so that the steel pipe can be placed stably.

Preferably, the transfer assembly comprises a third support body, a fixed plate, a bearing seat, a fixed seat, a second motor, a second screw rod body, a second screw rod nut, a moving block, a third electric cylinder and an upgrading block; the upper end of the supporting block is fixedly connected with a third supporting body; the upper end of the upgrading block is fixedly connected with a fixing plate; the fixed plate is in a frame shape; the upper end of the fixed plate is fixedly connected with a bearing seat and a fixed seat; the rear end of the fixed seat is fixedly connected with a second motor; the front end of the output shaft of the second motor penetrates through the fixed seat and is fixedly connected with a second screw rod body; the outer wall of the front end of the second screw rod body is attached to the inner wall of the bearing seat; the outer wall of the second screw rod body is movably provided with a second screw rod nut; the outer wall of the second screw nut is fixedly connected with a moving block; the left end and the right end of the moving block are attached to the inner walls of the left end and the right end of the fixed plate; the lower end of the moving block is fixedly connected with a third electric cylinder of the electric cylinder; the lower extreme fixedly connected with upgrading piece of telescopic link of third electronic jar, when the position to the upgrading piece is moved, opens the second motor and drives the second lead screw body and rotate, and second lead screw nut removes along the outer wall of second lead screw body and drive the movable block and remove to can drive the upgrading piece and remove in the fore-and-aft direction, open the third electronic jar and can carry out the ascending removal of upper and lower direction to the upgrading piece.

Preferably, the clamping assembly comprises an arc-shaped block, a fourth electric cylinder and a second clamping block; the lower end of the upgrading block is fixedly connected with an arc-shaped block; the left end and the right end of the arc-shaped block are fixedly connected with fourth electric cylinders which are uniformly distributed; the telescopic link of fourth electronic jar runs through the outer wall rigid coupling of arc piece and has the second clamp splice, when needs are fixed to the steel pipe after the heating, opens fourth electronic jar and makes the second clamp splice extrusion fix on the steel pipe, can carry out the centre gripping to the steel pipe after the heating fixed, conveniently removes the steel pipe.

The utility model has the beneficial effects that:

1. When the steel tube expanding device is used, firstly, a steel tube is moved into the clamping assembly through the auxiliary assembly and the heating assembly, the heating assembly is started to heat the steel tube, then the clamping assembly is started to clamp the steel tube, the transferring assembly is started to move the clamping assembly, so that the clamped steel tube can be moved to the outside of the movable expanding assembly, the movable expanding assembly is started to extrude the steel tube from inside to outside, the problems that in the steel tube expanding processing process, quick guiding and feeding of the steel tube are difficult, the tube expanding work is difficult to complete in the steel tube guiding and moving process, and the tube expanding blanking efficiency cannot be improved are solved;

2. When the first motor drives the first screw rod body to rotate, the position of the movable block is regulated, the U-shaped block is placed on the outer wall of the movable block, the position of the U-shaped block is regulated along the outer wall of the movable block, the outer wall of the smooth rod is attached to the inner wall of the U-shaped block, the first motor is started to enable the first screw rod body to rotate, the first screw rod nut moves along the outer wall of the first screw rod body, the second electric cylinders in two opposite directions are started, the telescopic rod of the second electric cylinders drives the first clamping block to move in a direction far away from the first screw rod body, the inner wall of a steel pipe can be extruded and expanded, and the movable extrusion and expansion are realized, so that the pipe expanding efficiency of the device and the stability in pipe expanding are improved;

3. When the position of the upgrading block needs to be moved, the second motor is started to drive the second screw rod body to rotate, the second screw rod nut moves along the outer wall of the second screw rod body to drive the moving block to move, so that the upgrading block can be driven to move in the front-back direction, the third electric cylinder is started to move up and down, the fourth electric cylinder is started to enable the second clamping block to be extruded and fixed on the steel pipe, the heated steel pipe can be clamped and fixed, the steel pipe can be conveniently moved, and the pipe expanding efficiency is greatly improved.

Drawings

FIG. 1 shows a schematic perspective view of a steel pipe expanding guide feeding mechanism according to the present utility model;

FIG. 2 is a schematic perspective view showing a supporting assembly of a steel pipe expanding guide feeding mechanism according to the present utility model;

FIG. 3 is a schematic perspective view showing a movable pipe expanding assembly of a steel pipe expanding guide feeding mechanism according to the present utility model;

FIG. 4 is a schematic perspective view showing a heating assembly of a steel pipe expanding guide feeding mechanism according to the present utility model;

FIG. 5 is a schematic perspective view showing a transfer assembly of a steel pipe expanding guide feeding mechanism according to the present utility model;

fig. 6 shows a schematic perspective view of a clamping assembly of a steel pipe expanding guide feeding mechanism according to the present utility model.

The marks in the drawings are: 1-supporting component, 101-supporting block, 102-supporting plate, 103-first electric cylinder, 104-movable block, 105-U-shaped block, 106-limit hole, 107-limit groove, 108-limit block, 2-movable expanding component, 201-fixed block, 202-first motor, 203-first screw-rod body, 204-smooth rod, 205-first screw-nut, 206-second electric cylinder, 207-first clamping block, 3-heating component, 301-first bottom plate, 302-supporting table, 303-fixed cover, 304-intermediate frequency heating coil, 305-first supporting body, 4-auxiliary component, 401-second bottom plate, 402-second supporting body, 5-transferring component, 501-third supporting body, 502-fixed plate, 503-bearing seat, 504-fixed seat, 505-second motor, 506-second screw-rod body, 507-second screw-nut, 508-movable block 509-third electric cylinder, 510-upgrading block, 6-clamping component, 601-arc block, 602-fourth electric cylinder, 603-second clamping block.

Detailed Description

The utility model is further described below with reference to the drawings and examples.

Referring to fig. 1, the present utility model provides an embodiment: a steel pipe expanding guide feeding mechanism comprises a supporting component 1; the device also comprises a movable pipe expanding assembly 2, a heating assembly 3, an auxiliary assembly 4, a transferring assembly 5 and a clamping assembly 6; the upper end of the supporting component 1 is provided with a movable pipe expanding component 2 for movably expanding the steel pipe; the upper end of the supporting component 1 is provided with a heating component 3; the rear end of the supporting component 1 is provided with an auxiliary component 4; the upper end of the supporting component 1 is provided with a transfer component 5 for moving the steel pipe; the transfer assembly 5 is provided with a clamping assembly 6 for clamping the steel pipe.

Referring to fig. 2 and 3, in the present embodiment, the support assembly 1 includes a support block 101, a support plate 102, a first electric cylinder 103, a movable block 104, a U-shaped block 105, a limiting hole 106, a limiting groove 107 and a limiting block 108; a supporting plate 102 is fixedly connected to the upper end of the supporting block 101; the right edge of the upper end of the supporting plate 102 is fixedly connected with a first electric cylinder 103; the left end of the first electric cylinder 103 is fixedly provided with a movable block 104; the upper end of the supporting block 101 is movably provided with a U-shaped block 105; the groove on the U-shaped block 105 is attached to the outer wall of the movable block 104; limiting holes 106 are formed in the front end and the rear end of the U-shaped block 105 in a penetrating mode; the upper end and the lower end of the supporting plate 102 are provided with uniformly distributed limiting grooves 107 in a penetrating way; the lower end of the movable block 104 is fixedly connected with uniformly distributed limiting blocks 108; the front end and the rear end of the limiting block 108 are attached to the inner walls of the front end and the rear end of the limiting groove 107; the movable pipe expanding assembly 2 comprises a fixed block 201, a first motor 202, a first screw rod body 203, a smooth rod 204, a first screw rod nut 205, a second electric cylinder 206 and a first clamping block 207; a fixed block 201 is fixedly connected to the upper end of the supporting plate 102; the front end of the fixed block 201 is fixedly connected with a first motor 202; the rear end of the output shaft of the first motor 202 penetrates through the fixed block 201 and is fixedly connected with a first screw rod body 203; a smooth rod 204 is fixedly connected to the rear end of the first screw rod body 203; the outer wall of the first screw rod body 203 is movably provided with a first screw rod nut 205; the left end and the right end of the first screw nut 205 are fixedly connected with second electric cylinders 206; a first clamping block 207 is fixedly connected to the telescopic rod of the second electric cylinder 206; the outer wall of the smooth rod 204 and the inner wall of the limiting aperture 106 are in the same plane.

Referring to fig. 4, in the present embodiment, the heating assembly 3 includes a first base plate 301, a support table 302, a fixing cover 303, an intermediate frequency heating coil 304, and a first support body 305; the rear end of the supporting block 101 is fixedly connected with a first bottom plate 301; a supporting table 302 is fixedly connected to the upper end of the first bottom plate 301; a fixed cover 303 is fixedly connected to the upper end of the supporting table 302; the inner wall of the fixed cover 303 is fixedly connected with an intermediate frequency heating coil 304; the upper end of the first bottom plate 301 is fixedly connected with a first supporting body 305; the auxiliary assembly 4 comprises a second bottom plate 401 and a second supporting body 402; the rear end of the first bottom plate 301 is fixedly connected with a second bottom plate 401; a second supporting body 402 is fixedly connected to the upper end of the second bottom plate 401; the upper end of the second supporting body 402 and the upper end of the first supporting body 305 are in the same plane.

Referring to fig. 5, in the present embodiment, the transfer assembly 5 includes a third support 501, a fixed plate 502, a bearing block 503, a fixed seat 504, a second motor 505, a second screw body 506, a second screw nut 507, a moving block 508, a third electric cylinder 509 and an upgrading block 510; a third supporting body 501 is fixedly connected to the upper end of the supporting block 101; the upper end of the upgrade block 510 is fixedly connected with a fixing plate 502; the fixing plate 502 is frame-shaped; the upper end of the fixed plate 502 is fixedly connected with a bearing seat 503 and a fixed seat 504; a second motor 505 is fixedly connected to the rear end of the fixing seat 504; the front end of the output shaft of the second motor 505 penetrates through the fixed seat 504 and is fixedly connected with a second screw rod body 506; the outer wall of the front end of the second screw rod body 506 is attached to the inner wall of the bearing seat 503; a second screw nut 507 is movably arranged on the outer wall of the second screw rod body 506; the outer wall of the second screw nut 507 is fixedly connected with a moving block 508; the left and right ends of the moving block 508 are attached to the inner walls of the left and right ends of the fixed plate 502; a third electric cylinder 509 of the electric cylinder is fixedly connected to the lower end of the moving block 508; an upgrade block 510 is fixedly connected to the lower end of the telescopic rod of the third electric cylinder 509.

Referring to fig. 6, in the present embodiment, the clamping assembly 6 includes an arc-shaped block 601, a fourth electric cylinder 602 and a second clamping block 603; the lower end of the upgrading block 510 is fixedly connected with an arc-shaped block 601; the left end and the right end of the arc-shaped block 601 are fixedly connected with fourth electric cylinders 602 which are uniformly distributed; the telescopic rod of the fourth electric cylinder 602 penetrates through the outer wall of the arc-shaped block 601 and is fixedly connected with a second clamping block 603.

When the steel pipe heating device works, steel pipes are placed at the upper ends of the first support body 305 and the second support body 402, so that the steel pipes pass through the inside of the medium-frequency heating coil 304, and the medium-frequency heating coil 304 is started to heat the steel pipes;

Then, the steel pipe is moved, the position of the upgrading block 510 is moved, the second motor 505 is started to drive the second screw rod body 506 to rotate, the second screw rod nut 507 moves along the outer wall of the second screw rod body 506 to drive the moving block 508 to move, the upgrading block 510 is driven to move in the front-back direction, the third electric cylinder 509 is started to move the upgrading block 510 in the up-down direction, the fourth electric cylinder 602 is started to enable the second clamping block 603 to be extruded and fixed on the steel pipe, the heated steel pipe can be clamped and fixed, and at the moment, the steel pipe can be clamped and then moved up-down and left-right;

The steel pipe is moved to the outside of the movable pipe expanding assembly 2, then the first electric cylinder 103 is started to adjust the position of the movable block 104, the U-shaped block 105 is placed on the outer wall of the movable block 104, and the position of the U-shaped block 105 is adjusted along the outer wall of the movable block 104, so that the outer wall of the smooth rod 204 is attached to the inner wall of the U-shaped block 105;

after that, the first motor 202 is started to enable the first screw rod body 203 to rotate, the first screw rod nut 205 moves along the outer wall of the first screw rod body 203, and the second electric cylinders 206 in two opposite directions are started, so that the telescopic rods of the second electric cylinders 206 drive the first clamping blocks 207 to move in the direction away from the first screw rod body 203, the inner wall of the steel pipe can be extruded and expanded, and the movable extrusion and expansion of the steel pipe are realized.

Through the above-mentioned step, during the use, firstly remove the steel pipe to the centre gripping subassembly 6 in through auxiliary assembly 4 and heating assembly 3, open heating assembly 3 and heat the steel pipe, later open centre gripping subassembly 6 and carry out the centre gripping to the steel pipe, open and transfer subassembly 5 and remove centre gripping subassembly 6 to can remove the steel pipe of centre gripping, remove the outside of removing the pipe expanding subassembly 2 with the steel pipe, open and remove the pipe expanding subassembly 2 and can extrude the pipe expanding from inside to outside to the steel pipe, solved at the steel pipe expanding course of working, be difficult to the quick direction pay-off of steel pipe, be difficult to accomplish the pipe expanding work at the in-process to steel pipe direction removal, can't improve the problem of pipe expanding unloading efficiency.

The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.

Claims (7)

1. The steel pipe expanding guide feeding mechanism comprises a supporting component (1); the method is characterized in that: the device also comprises a movable pipe expanding assembly (2), a heating assembly (3), an auxiliary assembly (4), a transferring assembly (5) and a clamping assembly (6); the upper end of the supporting component (1) is provided with a movable pipe expanding component (2) for movably expanding the steel pipe; the upper end of the supporting component (1) is provided with a heating component (3); an auxiliary assembly (4) is arranged at the rear end of the supporting assembly (1); the upper end of the supporting component (1) is provided with a transfer component (5) for moving the steel pipe; the transferring component (5) is provided with a clamping component (6) for clamping the steel pipe.

2. A steel pipe expanding guide feeding mechanism according to claim 1, wherein: the supporting component (1) comprises a supporting block (101), a supporting plate (102), a first electric cylinder (103), a movable block (104), a U-shaped block (105), a limiting hole (106), a limiting groove (107) and a limiting block (108); the upper end of the supporting block (101) is fixedly connected with a supporting plate (102); the right edge of the upper end of the supporting plate (102) is fixedly connected with a first electric cylinder (103); the left end of the first electric cylinder (103) is fixedly connected with a movable block (104); the upper end of the supporting block (101) is movably provided with a U-shaped block (105); the groove on the U-shaped block (105) is attached to the outer wall of the movable block (104); limiting holes (106) are formed in the front end and the rear end of the U-shaped block (105) in a penetrating mode; limiting grooves (107) which are uniformly distributed are formed at the upper end and the lower end of the supporting plate (102) in a penetrating way; the lower end of the movable block (104) is fixedly connected with a limiting block (108) which is uniformly distributed; the front end and the rear end of the limiting block (108) are attached to the inner walls of the front end and the rear end of the limiting groove (107).

3. A steel pipe expanding guide feeding mechanism according to claim 2, wherein: the movable pipe expanding assembly (2) comprises a fixed block (201), a first motor (202), a first screw rod body (203), a smooth rod (204), a first screw rod nut (205), a second electric cylinder (206) and a first clamping block (207); a fixed block (201) is fixedly connected to the upper end of the supporting plate (102); the front end of the fixed block (201) is fixedly connected with a first motor (202); the rear end of the output shaft of the first motor (202) penetrates through the fixed block (201) and is fixedly connected with a first screw rod body (203); a smooth rod (204) is fixedly connected to the rear end of the first screw rod body (203); the outer wall of the first screw rod body (203) is movably provided with a first screw rod nut (205); the left end and the right end of the first screw nut (205) are fixedly connected with second electric cylinders (206); a first clamping block (207) is fixedly connected on the telescopic rod of the second electric cylinder (206); the outer wall of the smooth rod (204) and the inner wall of the limit hole (106) are positioned on the same plane.

4. A steel pipe expanding guide feeding mechanism according to claim 2, wherein: the heating assembly (3) comprises a first bottom plate (301), a supporting table (302), a fixed cover (303), an intermediate frequency heating coil (304) and a first supporting body (305); the rear end of the supporting block (101) is fixedly connected with a first bottom plate (301); the upper end of the first bottom plate (301) is fixedly connected with a supporting table (302); the upper end of the supporting table (302) is fixedly connected with a fixed cover (303); the inner wall of the fixed cover (303) is fixedly connected with an intermediate frequency heating coil (304); the upper end of the first bottom plate (301) is fixedly connected with a first supporting body (305).

5. A steel pipe expanding guide feeding mechanism according to claim 1, wherein: the auxiliary assembly (4) comprises a second bottom plate (401) and a second supporting body (402); the rear end of the first bottom plate (301) is fixedly connected with a second bottom plate (401); the upper end of the second bottom plate (401) is fixedly connected with a second supporting body (402); the upper end of the second support body (402) and the upper end of the first support body (305) are in the same plane.

6. A steel pipe expanding guide feeding mechanism according to claim 2, wherein: the transfer assembly (5) comprises a third support body (501), a fixed plate (502), a bearing seat (503), a fixed seat (504), a second motor (505), a second screw rod body (506), a second screw rod nut (507), a moving block (508), a third electric cylinder (509) and an upgrading block (510); the upper end of the supporting block (101) is fixedly connected with a third supporting body (501); the upper end of the upgrading block (510) is fixedly connected with a fixed plate (502); the fixed plate (502) is in a frame shape; the upper end of the fixed plate (502) is fixedly connected with a bearing seat (503) and a fixed seat (504); the rear end of the fixed seat (504) is fixedly connected with a second motor (505); the front end of the output shaft of the second motor (505) penetrates through the fixed seat (504) and is fixedly connected with a second screw rod body (506); the outer wall of the front end of the second screw rod body (506) is attached to the inner wall of the bearing seat (503); the outer wall of the second screw rod body (506) is movably provided with a second screw rod nut (507); the outer wall of the second screw nut (507) is fixedly connected with a moving block (508); the left and right ends of the moving block (508) are attached to the inner walls of the left and right ends of the fixed plate (502); the lower end of the moving block (508) is fixedly connected with a third electric cylinder (509) of the electric cylinder; an upgrade block (510) is fixedly connected to the lower end of the telescopic rod of the third electric cylinder (509).

7. A steel pipe expanding guide feeding mechanism according to claim 6, wherein: the clamping assembly (6) comprises an arc-shaped block (601), a fourth electric cylinder (602) and a second clamping block (603); the lower end of the upgrading block (510) is fixedly connected with an arc-shaped block (601); the left end and the right end of the arc-shaped block (601) are fixedly connected with fourth electric cylinders (602) which are uniformly distributed; the telescopic rod of the fourth electric cylinder (602) penetrates through the outer wall of the arc-shaped block (601) and is fixedly connected with a second clamping block (603).