CN113714565A

CN113714565A - Cylindrical die steel cutting and fixing mechanism

Info

Publication number: CN113714565A
Application number: CN202111032079.2A
Authority: CN
Inventors: 邱建国; 黄海宁; 李俊
Original assignee: Anhui Dingsheng Mould Material Co ltd
Current assignee: Anhui Dingsheng Mould Material Co ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2021-11-30

Abstract

The invention relates to the field of die steel cutting, in particular to a cylindrical die steel cutting and fixing mechanism which comprises a base, wherein the top of the base is symmetrically and fixedly connected with a guide sleeve, four movable grooves are formed in the side wall of the guide sleeve at equal intervals, movable springs are fixedly connected to the inner walls of the movable grooves, one ends of the movable springs are fixedly connected with guide wheels, and the side wall of the guide wheel on the left side is hinged with a guide plate. This cylindrical mould steel cutting fixed establishment is by drive mechanism, fixture and stop gear constitute, take articulated connecting rod to pull a transmission cover and No. two transmission covers that correspond when making electric telescopic handle lower part flexible and be sliding on the surface of base, adjust the distance between a transmission cover and No. two transmission covers, be convenient for carry out the centre gripping to the cylindrical mould steel of different diameters and carry, and deflector and leading wheel cooperation use can carry out the automatic positioning to the cylindrical mould steel in the transmission course, promote transmission stability, promote the use convenience.

Description

Cylindrical die steel cutting and fixing mechanism

Technical Field

The invention relates to the field of die steel cutting, in particular to a cylindrical die steel cutting and fixing mechanism.

Background

The die steel can be roughly divided into: cold rolling die steel, hot rolling die steel and die steel, and is used for forging, stamping, cutting, die casting and the like. The finished die steel is often required to be cut when being subjected to post-processing;

because finished product mould steel length is longer, is difficult to the position of adjusting the leading wheel among the current partial cylindrical mould steel cutting process, is difficult to carry out the centre gripping to the mould steel of different diameters and carries, is difficult to carry out the fixed cutting to the mould steel of different diameters among the current partial cylindrical mould steel cutting process, and cutting stability is poor, has certain potential safety hazard, is difficult to control the length of cutting among the current partial cylindrical mould steel cutting process simultaneously, and the practicality is poor.

Disclosure of Invention

The invention aims to provide a cylindrical die steel cutting and fixing mechanism to solve the problems in the background technology. In order to achieve the purpose, the invention provides the following technical scheme: a cylindrical die steel cutting and fixing mechanism comprises a base, wherein the top of the base is symmetrically and fixedly connected with a guide sleeve, four movable grooves are formed in the side wall of the guide sleeve at equal intervals, a movable spring is fixedly connected to the inner wall of each movable groove, one end of each movable spring is fixedly connected with a guide wheel, the side wall of the guide wheel on the left side is hinged to a guide plate, one end of each guide plate is movably connected to the side wall of the guide sleeve, and a connecting rod is hinged between every two adjacent guide wheels;

a transmission mechanism is movably connected between the left ends of the two guide sleeves, and a clamping mechanism is movably connected between the right ends of the two guide sleeves;

the cutting tool comprises a base, a U-shaped supporting plate, a hydraulic rod, a cutting knife body, a U-shaped cushion block, a pressing plate and a clamping mechanism, wherein the top of the base is fixedly connected with the U-shaped supporting plate, the bottom of the U-shaped supporting plate is fixedly connected with the hydraulic rod, the bottom of the hydraulic rod is fixedly connected with the cutting knife body, the side wall of the upper part of the cutting knife body is fixedly connected with the U-shaped cushion block, the inside of the U-shaped cushion block is movably connected with the pressing plate, the middle of the pressing plate is hinged with a supporting block, the side wall of the supporting block is fixedly connected to the side wall of the U-shaped supporting plate, and one end of the pressing plate is movably connected with the top of the clamping mechanism;

the right side of the top of the base is movably connected with a limiting mechanism.

Preferably, the transmission mechanism comprises a fixed block, the bottom of the fixed block is fixedly connected to the tops of the two guide sleeves, the surface of the fixed block is fixedly connected with an electric telescopic rod, the bottoms of the electric telescopic rods are symmetrically hinged with connecting rods, the bottoms of the two connecting rods are respectively hinged with a first transmission sleeve and a second transmission sleeve, the middle of the first transmission sleeve is rotatably connected with a main transmission wheel, the axis position of the main transmission wheel is fixedly connected with a transmission motor, the top of the transmission motor is fixedly connected to the inner top surface of the first transmission sleeve, and the middle of the second transmission sleeve is rotatably connected with a secondary transmission wheel;

the top symmetry of base has seted up the spout, No. one transmission cover and No. two transmission cover sliding connection respectively are in two the inside of spout.

Preferably, the clamping mechanism comprises a U-shaped mounting frame, the side wall of the U-shaped mounting frame is fixedly connected with the right ends of the two guide sleeves, the bottom of the U-shaped mounting frame is fixedly connected with a mounting plate, the bottom of the mounting plate is symmetrically and movably connected with L-shaped clamping plates, and the middle parts of the L-shaped clamping plates are hinged with two hinge rods;

a sliding sleeve is movably connected between the U-shaped mounting frame and the middle part of the mounting plate, two sides of the lower part of the sliding sleeve are respectively hinged with one end of two adjacent hinging rods, a through groove is formed in the upper part of the sliding sleeve, a sliding rod is connected inside the through groove in a sliding manner, a limiting ring is fixedly connected to the bottom of the sliding rod, a buffer spring is movably sleeved in the middle of the sliding rod, the top of the buffer spring is overlapped on the inner top surface of the through groove, and the bottom of the buffer spring is overlapped on the top of the limiting ring;

the top of the sliding rod is fixedly connected with a U-shaped block, and the middle of the U-shaped block is movably connected with one end of the pressing plate.

Preferably, the lower part of the L-shaped clamping plate is arc-shaped, and a rubber pad is fixedly connected to the side wall of the lower part of the L-shaped clamping plate;

the movable groove is symmetrically formed in the two sides of the bottom of the mounting plate, the guide rod is fixedly connected to the inner portion of the movable groove, and the upper portion of the L-shaped clamping plate is connected to the surface of the guide rod in a sliding mode.

Preferably, waist-shaped grooves are symmetrically formed in two sides of the U-shaped block, a rotating shaft is connected between the waist-shaped grooves in a sliding mode, and one end of the pressing plate is movably connected to the middle of the rotating shaft.

Preferably, stop gear includes the spacing groove, the spacing groove is established to two, two the right side at the base top is seted up to the spacing groove symmetry, twenty stoppers of interior bottom surface equidistance fixedly connected with of spacing groove, two sliding connection has U type baffle between the spacing groove, the bottom fixedly connected with inserted bar of U type baffle, the lower part activity of inserted bar is pegged graft adjacent two between the stopper.

Preferably, the middle part of the inserted bar is fixedly connected with a limiting plate, and the upper part of the inserted bar is movably sleeved with a limiting spring matched with the limiting plate.

Preferably, the adjusting groove has been seted up to the lateral wall of uide bushing, the inside fixedly connected with round bar of adjusting groove, the surperficial sliding connection of round bar has articulated piece, the one end and the articulated piece of deflector are articulated.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, through the matched use of the electric telescopic rod, the connecting rod, the main driving wheel and other components, the lower part of the electric telescopic rod is driven to slide on the surface of the base along with the hinged connecting rod to pull the corresponding first transmission sleeve and the second transmission sleeve, the distance between the first transmission sleeve and the second transmission sleeve is adjusted, the cylindrical die steels with different diameters can be clamped and conveyed conveniently, and the guide plate and the guide wheel are matched for use, so that the cylindrical die steel in the transmission process can be automatically positioned, the transmission stability is improved, and the use convenience is improved.

According to the die steel cutting machine, the L-shaped clamping plates, the sliding sleeve, the pressing plate and other components are matched for use, so that the pressing plate is driven to deflect at the right end when the cutting knife body moves downwards to cut die steel, the left end of the pressing plate is tilted and drives the hinged sliding rod to ascend, the sliding sleeve is driven to move upwards through the buffer spring when the sliding rod ascends, the hinged rod hinged to the lower portion of the sliding sleeve pulls the corresponding L-shaped clamping plate to move, the two L-shaped clamping plates move relatively to clamp and cut the die steel with different diameters, the stability in the cutting process is improved, and the safety performance is improved.

According to the die steel cutting device, the U-shaped baffle is pulled upwards through the matching use of the U-shaped baffle, the inserting rod, the scale marks and other parts, the inserting rod at the bottom of the U-shaped baffle is enabled to be disconnected from the limiting block in an inserting mode, the moving distance of the U-shaped baffle is observed through the scale marks, the die steel cutting length can be adjusted conveniently, and the die steel cutting device is high in practicability.

Drawings

FIG. 1 is a top cross-sectional view of the position of the guide sleeve of the present invention;

FIG. 2 is an enlarged view of the structure of FIG. 1 at A in accordance with the present invention;

FIG. 3 is a left sectional view of the partial positions of the first driving sleeve and the second driving sleeve of the present invention;

FIG. 4 is a right cross-sectional view of the L-shaped splint of the present invention in partial position;

FIG. 5 is a front sectional view of a partial position of the cutting blade body and the pressing plate according to the present invention;

FIG. 6 is an enlarged view of the structure of FIG. 5 at B according to the present invention.

In the figure: 1. a base; 2. a guide sleeve; 3. a movable groove; 4. a movable spring; 5. a guide wheel; 6. a guide plate; 7. a connecting rod; 8. a transmission mechanism; 801. a fixed block; 802. an electric telescopic rod; 803. a connecting rod; 804. a first transmission sleeve; 805. a second transmission sleeve; 806. a main transmission wheel; 807. a drive motor; 808. a driven wheel; 809. a chute; 9. a clamping mechanism; 901. a U-shaped mounting frame; 902. mounting a plate; 903. an L-shaped splint; 904. a hinged lever; 905. a sliding sleeve; 906. a through groove; 907. a slide bar; 908. a limiting ring; 909. a buffer spring; 910. a U-shaped block; 10. a U-shaped support plate; 11. a hydraulic lever; 12. a cutting knife body; 13. a U-shaped cushion block; 14. pressing a plate; 15. a support block; 16. a limiting mechanism; 1601. a limiting groove; 1602. a limiting block; 1603. a U-shaped baffle plate; 1604. inserting a rod; 1605. scale lines are marked.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by workers skilled in the art without any inventive work based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1 to 6, the present invention provides a technical solution: the utility model provides a cylindrical die steel cutting fixed establishment, including base 1, base 1's top symmetry fixedly connected with uide bushing 2, four activity grooves 3 have been seted up to the lateral wall equidistance of uide bushing 2, the inner wall fixedly connected with movable spring 4 of activity groove 3, the one end fixedly connected with leading wheel 5 of movable spring 4, the lateral wall of left side leading wheel 5 articulates there is deflector 6, the one end swing joint of deflector 6 is on the lateral wall of uide bushing 2, it has connecting rod 7 to articulate between two adjacent leading wheels 5. It should be noted that the connecting rod 7 is provided with the guide plate 6 to guide the cylindrical die steel, so as to improve the guiding and the stability of the 5 moving process.

A transmission mechanism 8 is movably connected between the left ends of the two guide sleeves 2, and a clamping mechanism 9 is movably connected between the right ends of the two guide sleeves 2.

The top fixedly connected with U type backup pad 10 of base 1, the bottom fixedly connected with hydraulic stem 11 of U type backup pad 10, the bottom fixedly connected with cutting knife body 12 of hydraulic stem 11, lateral wall fixedly connected with U type cushion 13 on cutting knife body 12 upper portion, the inside swing joint of U type cushion 13 has clamp plate 14, clamp plate 14's middle part articulates there is supporting shoe 15, the lateral wall fixed connection of supporting shoe 15 is on the lateral wall of U type backup pad 10, the one end of clamp plate 14 and fixture 9's top swing joint. It should be noted that, the number of the supporting blocks 15 is two, the two supporting blocks 15 are respectively and fixedly connected to two sides of the U-shaped supporting plate 10, a rotating rod is rotatably connected between the two supporting blocks 15, and the middle portion of the pressing plate 14 is fixedly sleeved in the middle portion of the rotating rod, so that the pressing plate 14 can swing between the two supporting blocks 15.

The right side of the top of the base 1 is movably connected with a limiting mechanism 16.

In this embodiment, as shown in fig. 1 and fig. 3, the transmission mechanism 8 includes a fixed block 801, the bottom of the fixed block 801 is fixedly connected to the tops of the two guide sleeves 2, the surface of the fixed block 801 is fixedly connected with an electric telescopic rod 802, the bottoms of the electric telescopic rods 802 are symmetrically hinged with connecting rods 803, the bottoms of the two connecting rods 803 are respectively hinged with a first transmission sleeve 804 and a second transmission sleeve 805, the middle of the first transmission sleeve 804 is rotatably connected with a main transmission wheel 806, the axial center position of the main transmission wheel 806 is fixedly connected with a transmission motor 807, the top of the transmission motor 807 is fixedly connected to the inner top surface of the first transmission sleeve 804, and the middle of the second transmission sleeve 805 is rotatably connected with a secondary transmission wheel 808.

The top of the base 1 is symmetrically provided with sliding grooves 809, and the first transmission sleeve 804 and the second transmission sleeve 805 are respectively connected inside the two sliding grooves 809 in a sliding manner.

In this embodiment, as shown in fig. 1, fig. 4 and fig. 5, the clamping mechanism 9 includes a U-shaped mounting frame 901, the side wall of the U-shaped mounting frame 901 is fixedly connected to the right ends of the two guide sleeves 2, the bottom of the U-shaped mounting frame 901 is fixedly connected to a mounting plate 902, the bottom of the mounting plate 902 is symmetrically and movably connected to an L-shaped clamp plate 903, and the middle of the L-shaped clamp plate 903 is hinged to two hinge rods 904.

A sliding sleeve 905 is movably connected between the U-shaped mounting frame 901 and the middle of the mounting plate 902, two sides of the lower portion of the sliding sleeve 905 are respectively hinged with one end of each of two adjacent hinge rods 904, a through groove 906 is formed in the upper portion of the sliding sleeve 905, a sliding rod 907 is slidably connected inside the through groove 906, a limiting ring 908 is fixedly connected to the bottom of the sliding rod 907, a buffer spring 909 is movably sleeved in the middle of the sliding rod 907, the top of the buffer spring 909 is overlapped on the inner top surface of the through groove 906, and the bottom of the buffer spring 909 is overlapped on the top of the limiting ring 908.

The top of the sliding rod 907 is fixedly connected with a U-shaped block 910, and the middle part of the U-shaped block 910 is movably connected with one end of the pressing plate 14. It should be noted that, when the cutting blade body 12 moves down to cut the die steel, the right end of the press plate 14 with the movable connection deflects, and at this time, through the lever principle, the left end of the press plate 14 tilts and drives the U-shaped block 910 with the movable connection and the slide rod 907 to ascend, so that the slide rod 907 drives the sliding sleeve 905 to slide and move up in the middle of the U-shaped mounting frame 901 and the mounting plate 902 through the buffer spring 909 when ascending, and at this time, the hinge rod 904 hinged to the lower portion of the sliding sleeve 905 pulls the corresponding L-shaped clamp plate 903 to move, so that the two L-shaped clamp plates 903 move relatively at the bottom of the mounting plate 902 to clamp and cut the die steels with different diameters, thereby improving the stability in the cutting process and improving the safety performance.

In this embodiment, as shown in fig. 4, the lower portion of the L-shaped clamp plate 903 is formed in an arc shape, and a rubber pad is fixedly connected to a side wall of the lower portion of the L-shaped clamp plate 903. It should be noted that the rubber pad is used to lift the friction force during the clamping process of the L-shaped clamp plate 903, thereby improving the stability.

The both sides symmetry of mounting panel 902 bottom has seted up the shifting chute, and the inside fixedly connected with guide arm of shifting chute, the upper portion sliding connection of L type splint 903 is on the surface of guide arm. Note that stability during movement of the L-shaped clamp 903 is improved by the guide bar arrangement.

In this embodiment, as shown in fig. 4 and 5, two sides of the U-shaped block 910 are symmetrically provided with waist-shaped grooves, a rotating shaft is slidably connected between the two waist-shaped grooves, and one end of the pressing plate 14 is movably connected to the middle of the rotating shaft. It should be noted that the waist-shaped grooves are provided to prevent interference during the deflection of the pressing plate 14, and the waist-shaped grooves are also provided on two sides of the inner wall of the U-shaped pad 910.

In this embodiment, as shown in fig. 1, fig. 5 and fig. 6, stop gear 16 includes limiting groove 1601, and limiting groove 1601 establishes to two, and two limiting groove 1601 symmetry are seted up on the right side at base 1 top, and the interior bottom surface equidistance fixedly connected with twenty stopper 1602 of limiting groove 1601, sliding connection has U type baffle 1603 between two limiting groove 1601, and the bottom fixedly connected with inserted bar 1604 of U type baffle 1603, the lower part activity of inserted bar 1604 is pegged graft between two adjacent stopper 1602.

Scale marks 1605 are symmetrically arranged on two sides of the top of the base 1. It should be noted that the insertion rod 1604 at the bottom of the U-shaped baffle 1603 is disconnected from the insertion block 1602 by pulling the U-shaped baffle 1603 upwards, and the moving distance of the U-shaped baffle 1603 is observed through the scale marks 1605, so that the cutting length of the die steel is conveniently adjusted, and the practicability is high.

In this embodiment, as shown in fig. 6, a limiting plate is fixedly connected to the middle of the inserting rod 1604, and a limiting spring matched with the limiting plate is movably sleeved on the upper portion of the inserting rod 1604.

In this embodiment, as shown in fig. 1 and 2, an adjusting groove is formed in the side wall of the guide sleeve 2, a round bar is fixedly connected to the inside of the adjusting groove, a hinge block is slidably connected to the surface of the round bar, and one end of the guide plate 6 is hinged to the hinge block.

The use method and the advantages of the invention are as follows: this cylindrical die steel cutting fixed establishment, the working process as follows:

as shown in fig. 1 to 6, when the lower portion of the electric telescopic rod 802 extends and retracts, the corresponding first transmission sleeve 804 and second transmission sleeve 805 are pulled by the connecting rod 803 in a hinged manner to slide in a sliding groove 809 formed in the surface of the base 1, the distance between the first transmission sleeve 804 and the second transmission sleeve 805 is adjusted, cylindrical die steels with different diameters can be clamped and conveyed conveniently, and when the circumferential die steel enters the position of the guide plate 6, automatic positioning transmission is obliquely arranged through the two guide plates 6 and is conveyed by the guide wheel 5 in a matched manner, so that the transmission stability is improved, and the use convenience is improved; when the cutting knife body 12 moves downwards to cut the die steel, the right end of the pressure plate 14 with the movable connection deflects, at the moment, the left end of the pressure plate 14 tilts through a lever principle and drives the U-shaped block 910 and the sliding rod 907 with the movable connection to ascend, the sliding rod 907 drives the sliding sleeve 905 to slide and move upwards in the middle of the U-shaped mounting frame 901 and the mounting plate 902 through the buffer spring 909 when ascending, the hinge rod 904 hinged to the lower portion of the sliding sleeve 905 pulls the corresponding L-shaped clamp plate 903 to move, the two L-shaped clamp plates 903 move relatively at the bottom of the mounting plate 902 to clamp and cut the die steel with different diameters, the stability in the cutting process is improved, and the safety performance is improved; through upwards pulling U type baffle 1603, make the inserted bar 1604 and the stopper 1602 of U type baffle 1603 bottom relieve to peg graft to observe the distance that U type baffle 1603 removed through scale mark 1605, be convenient for adjust the length of mould steel cutting, the practicality is strong.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a cylindrical die steel cutting fixed establishment, includes base (1), its characterized in that: the top of the base (1) is symmetrically and fixedly connected with a guide sleeve (2), four movable grooves (3) are formed in the side wall of the guide sleeve (2) at equal intervals, movable springs (4) are fixedly connected to the inner wall of the movable grooves (3), one ends of the movable springs (4) are fixedly connected with guide wheels (5), the side wall of the guide wheel (5) on the left side is hinged with a guide plate (6), one end of the guide plate (6) is movably connected to the side wall of the guide sleeve (2), and a connecting rod (7) is hinged between every two adjacent guide wheels (5);

a transmission mechanism (8) is movably connected between the left ends of the two guide sleeves (2), and a clamping mechanism (9) is movably connected between the right ends of the two guide sleeves (2);

the top of the base (1) is fixedly connected with a U-shaped supporting plate (10), the bottom of the U-shaped supporting plate (10) is fixedly connected with a hydraulic rod (11), the bottom of the hydraulic rod (11) is fixedly connected with a cutting knife body (12), the side wall of the upper part of the cutting knife body (12) is fixedly connected with a U-shaped cushion block (13), the inside of the U-shaped cushion block (13) is movably connected with a pressing plate (14), the middle part of the pressing plate (14) is hinged with a supporting block (15), the side wall of the supporting block (15) is fixedly connected to the side wall of the U-shaped supporting plate (10), and one end of the pressing plate (14) is movably connected with the top of the clamping mechanism (9);

the right side of the top of the base (1) is movably connected with a limiting mechanism (16).

2. The cylindrical die steel cutting fixture of claim 1, wherein: the transmission mechanism (8) comprises a fixed block (801), the bottom of the fixed block (801) is fixedly connected to the tops of the two guide sleeves (2), an electric telescopic rod (802) is fixedly connected to the surface of the fixed block (801), connecting rods (803) are symmetrically hinged to the bottom of the electric telescopic rod (802), a first transmission sleeve (804) and a second transmission sleeve (805) are respectively hinged to the bottoms of the two connecting rods (803), a main transmission wheel (806) is rotatably connected to the middle of the first transmission sleeve (804), a transmission motor (807) is fixedly connected to the axis position of the main transmission wheel (806), the top of the transmission motor (807) is fixedly connected to the inner top surface of the first transmission sleeve (804), and a secondary transmission wheel (808) is rotatably connected to the middle of the second transmission sleeve (805);

the top of the base (1) is symmetrically provided with sliding grooves (809), and the first transmission sleeve (804) and the second transmission sleeve (805) are respectively connected inside the two sliding grooves (809) in a sliding manner.

3. The cylindrical die steel cutting fixture of claim 1, wherein: the clamping mechanism (9) comprises a U-shaped mounting frame (901), the side wall of the U-shaped mounting frame (901) is fixedly connected with the right ends of the two guide sleeves (2), the bottom of the U-shaped mounting frame (901) is fixedly connected with a mounting plate (902), the bottom of the mounting plate (902) is symmetrically and movably connected with an L-shaped clamping plate (903), and the middle part of the L-shaped clamping plate (903) is hinged with two hinge rods (904);

a sliding sleeve (905) is movably connected between the U-shaped mounting frame (901) and the middle of the mounting plate (902), two sides of the lower part of the sliding sleeve (905) are respectively hinged with one end of two adjacent hinge rods (904), a through groove (906) is formed in the upper part of the sliding sleeve (905), a sliding rod (907) is slidably connected inside the through groove (906), a limiting ring (908) is fixedly connected to the bottom of the sliding rod (907), a buffer spring (909) is movably sleeved in the middle of the sliding rod (907), the top of the buffer spring (909) is lapped on the inner top surface of the through groove (906), and the bottom of the buffer spring (909) is lapped on the top of the limiting ring (908);

the top of the sliding rod (907) is fixedly connected with a U-shaped block (910), and the middle of the U-shaped block (910) is movably connected with one end of the pressing plate (14).

4. The cylindrical die steel cutting fixture of claim 3, wherein: the lower part of the L-shaped clamping plate (903) is arc-shaped, and a rubber pad is fixedly connected to the side wall of the lower part of the L-shaped clamping plate (903);

the bilateral symmetry of mounting panel (902) bottom has seted up the shifting chute, the inside fixedly connected with guide arm of shifting chute, the upper portion sliding connection of L type splint (903) is on the surface of guide arm.

5. The cylindrical die steel cutting fixture of claim 3, wherein: waist-shaped grooves are symmetrically formed in two sides of the U-shaped block (910), a rotating shaft is connected between the two waist-shaped grooves in a sliding mode, and one end of the pressing plate (14) is movably connected to the middle of the rotating shaft.

6. The cylindrical die steel cutting fixture of claim 1, wherein: the limiting mechanism (16) comprises two limiting grooves (1601), the two limiting grooves (1601) are symmetrically arranged on the right side of the top of the base (1), twenty limiting blocks (1602) are fixedly connected to the inner bottom surface of each limiting groove (1601) at equal intervals, a U-shaped baffle (1603) is connected between the two limiting grooves (1601) in a sliding mode, an inserting rod (1604) is fixedly connected to the bottom of each U-shaped baffle (1603), and the lower portion of each inserting rod (1604) is movably inserted between every two adjacent limiting blocks (1602);

the scale marks (1605) are symmetrically arranged on two sides of the top of the base (1).

7. The cylindrical die steel cutting fixture of claim 6, wherein: the middle part fixedly connected with limiting plate of inserted bar (1604), the upper portion activity of inserted bar (1604) is cup jointed with the spacing spring of limiting plate matched with.

8. The cylindrical die steel cutting fixture of claim 1, wherein: the adjusting groove has been seted up to the lateral wall of uide bushing (2), the inside fixedly connected with round bar of adjusting groove, the surperficial sliding connection of round bar has articulated piece, the one end and the articulated piece of deflector (6) are articulated.