CN211758800U

CN211758800U - High accuracy copper bar cutting device

Info

Publication number: CN211758800U
Application number: CN202020081438.8U
Authority: CN
Inventors: 左磊; 顾建祥; 李志强; 邢学胜
Original assignee: Tianjin Tiankai Taopu Electric Appliance Co ltd
Current assignee: Tianjin Tiankai Taopu Electric Appliance Co ltd
Priority date: 2020-01-15
Filing date: 2020-01-15
Publication date: 2020-10-27
Anticipated expiration: 2030-01-15

Abstract

The utility model relates to the technical field of copper bar cutting devices, in particular to a high-precision copper bar cutting device, which comprises a workbench, a support frame, a driving piece and a cutter, the cutting device also comprises a pressing piece, the pressing piece comprises a limiting plate, a limiting frame and an eccentric wheel, the limiting plate is arranged on the upper surface of the workbench and is positioned on one side of the supporting frame, the limiting frame is L-shaped, the limiting frame comprises a vertical rod and a horizontal rod, the vertical rod is fixedly connected above the edge, close to the supporting frame, of the limiting plate, the vertical rod is perpendicular to the limiting plate, the horizontal rod is perpendicular to the vertical rod and parallel to the limiting plate, the end part of the horizontal rod, far away from the vertical rod, is fixedly connected with a connecting shaft, the connecting shaft is perpendicular to a plane where the horizontal rod and the vertical rod are located, the eccentric wheel is rotatably connected onto the connecting shaft, and when the eccentric wheel is obliquely arranged relative to the vertical rod, the top of the eccentric wheel can be abutted against the upper surface of the workbench. The utility model discloses a make the copper bar difficult function that the emergence sticks up when being cut.

Description

High accuracy copper bar cutting device

Technical Field

The utility model relates to a copper bar cutting device technical field, in particular to high accuracy copper bar cutting device.

Background

The copper bar is also called as copper busbar or copper busbar, is a long conductor which is made of copper material and has a rectangular or chamfered rectangular section, plays a role in conveying current and connecting electrical equipment in a circuit, is widely applied to electrical equipment, particularly to a complete set of distribution equipment, and is cut as the length of the finished aluminum bar or copper bar is uniform when the copper bar or copper bar is installed, but the copper bar or copper bar needs to be constructed according to design in the installation process.

Copper bar cutting device of prior art can refer to the utility model patent that the grant bulletin number is CN205600022U, comprises a workbench, and a support, the diaphragm, the gear pump, hydraulic cylinder and cutter, two fixed welding of support are on the upper surface of workstation and parallel arrangement, diaphragm fixed connection is between the tip that the workstation was kept away from to two supports, hydraulic cylinder's fixed one side that is close to the workstation of setting of cylinder body is at the diaphragm, the cutter is fixed to be set up on hydraulic cylinder's piston rod, the cutter is located the top of workstation, the fixed lower part that sets up at the workstation of gear pump, the gear pump passes through oil pipe and links to each other with hydraulic. When the cutter was located the cutting copper bar, place the copper bar in the cutter below, start the gear pump, the gear pump passes through in oil pipe takes out the tight gear pump of hydraulic oil pumping in with hydraulic tank, the gear pump further with hydraulic oil through oil pipe in the hydraulic cylinder that drives, hydraulic cylinder's piston rod then drives the cutter and cuts the copper bar downwards.

Above-mentioned prior art's weak point lies in, longer when the copper bar length, and lie in the copper bar length of waiting to cut on the cutting bed when shorter, the copper bar can take place to stick up and move, if the copper bar takes place the slope, then can lead to the copper bar by the length production error of cutting, and then influences the use of copper bar.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high accuracy copper bar cutting device has realized making the copper bar be difficult for taking place the function that sticks up when being cut.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a high-precision copper bar cutting device comprises a workbench, a support frame, a driving piece and a cutter, wherein the support frame is fixedly arranged on the workbench, the driving piece is connected to the support frame, the cutter is fixedly connected to the driving piece, the driving piece can drive the cutter to move relative to the support frame in a direction close to or away from the workbench, the cutting device also comprises a pressing piece, the pressing piece comprises a limiting plate, a limiting frame and an eccentric wheel, the limiting plate is arranged on the upper surface of the workbench and is positioned on one side of the support frame, the limiting frame is L-shaped and comprises a vertical rod and a horizontal rod, the vertical rod is fixedly connected above the edge of the limiting plate close to the support frame, the vertical rod is perpendicular to the limiting plate, the horizontal rod is perpendicular to the vertical rod and parallel to the limiting plate, a connecting shaft is fixedly connected to the end part of the horizontal rod far away from, when the eccentric wheel is obliquely arranged relative to the vertical rod, the top of the eccentric wheel can be abutted against the upper surface of the workbench.

Through adopting the above-mentioned technical scheme, when placing the copper bar, rotate the eccentric wheel to the direction of keeping away from the limiting plate, place the below at the cutter with the copper bar, the copper bar passes the both sides of cutter, promote one side and the limiting plate butt of copper bar until, then rotate the eccentric wheel to the direction of being close to the limiting plate, the copper bar with its below is supported tightly until the top of eccentric wheel, the copper bar is supported tightly by the eccentric wheel when being spacing by the limiting plate, consequently, make the difficult tilting of copper bar, then the cutter cuts the copper bar, the staff needn't directly contact with the copper bar with the hand, consequently, the hand to the staff when making the copper bar be cut causes the damage, make the cutter copper bar when the copper bar is cut the difficult error that.

The utility model discloses further set up to: a rubber layer is fixedly adhered to the outer side wall of the tip of the eccentric wheel.

Through adopting above-mentioned technical scheme, when the eccentric wheel supported the copper bar tightly, the rubber layer was flexible material with the surface contact of copper bar, consequently the rubber layer has reduced the wearing and tearing between eccentric wheel and the copper bar surface for difficult quilt wearing and tearing when the copper bar was supported tightly.

The utility model discloses further set up to: be provided with the regulating part between limiting plate and workstation, the regulating part includes the locating plate, adjusting bolt and adjusting nut, the fixed setting at the workstation upper surface of locating plate, the direction setting along the perpendicular to limiting plate of locating plate is followed to the locating plate, fixedly connected with connecting plate on one side border that the limiting plate is close to the locating plate, the connecting plate is L shape, L shape opening is towards the locating plate, connecting plate and locating plate butt, the slot hole has been seted up at the upper surface of locating plate, the slot hole sets up along the direction of perpendicular to limiting plate, adjusting bolt includes threaded rod and bolt cap, the inside cavity of locating plate, the threaded rod passes connecting plate and slot hole, the bolt cap is located the locating plate and keeps away from the inside wall butt of workstation with the locating plate, adjusting nut threaded connection is in one side that the bolt cap.

Through adopting the above-mentioned technical scheme, when the length of the copper bar that needs the cutting is different, need adjust the distance between limiting plate and the support frame, make adjusting nut keep away from the connecting plate, remove the limiting plate along the locating plate, the threaded rod removes in the slot hole, the inside wall that workstation was kept away from to the bolt cap along the locating plate simultaneously slides, after adjusting to the required shearing length of copper bar, the staff makes the threaded rod remain motionless, rotate along adjusting nut along adjusting bolt, support the connecting plate tightly on the upper surface of locating plate until adjusting nut, make the limiting plate supported tightly on the locating plate by adjusting nut and bolt cap, consequently, realized making limiting plate position adjustable function, consequently, the adaptability that compresses tightly the piece has been improved.

The utility model discloses further set up to: the edge of the long hole is fixedly provided with scale marks which are arranged along the direction parallel to the long hole.

Through adopting above-mentioned technical scheme, the staff can measure the position of limiting plate apart from the cutter through observing the relative position of connecting plate and scale mark, can carry out accuracy spacing to the length that the copper bar was cut promptly.

The utility model discloses further set up to: a guide groove is formed in the upper surface of the positioning plate, the length direction of the guide groove is parallel to the length direction of the long hole, and the end portion, far away from the limiting plate, of the connecting plate is connected with the guide groove in a sliding mode.

Through adopting above-mentioned technical scheme, the tip and the guide way sliding connection of connecting plate, the limiting plate is more stable along the slip of locating plate, consequently makes things convenient for the staff to adjust the relative position of limiting plate and locating plate.

The utility model discloses further set up to: the cutting device further comprises a moving member, the moving member comprises a pushing mechanism and a pushing plate, one side, far away from the limiting plate, of the positioning plate is provided with an inserting hole, the length direction of the inserting hole is perpendicular to the limiting plate, the pushing plate is located in the inserting hole, the pushing mechanism is fixedly arranged on one side, far away from the limiting plate, of the positioning plate, and the pushing mechanism can drive the pushing plate to move towards the direction, close to or far away from the positioning plate, relative to the limiting plate.

Through adopting above-mentioned technical scheme, having cut the copper bar the back, make the eccentric wheel rotate to the direction of keeping away from the limiting plate, pushing mechanism drives the slurcam and promotes the copper bar to the direction of keeping away from the locating plate, consequently does not need the staff to take out the copper bar between cutter and the limiting plate manually.

The utility model discloses further set up to: the pushing mechanism is an air cylinder, the cylinder body of the air cylinder is fixedly arranged on the workbench and is located on one side, far away from the limiting plate, of the positioning plate, and the piston rod of the air cylinder penetrates through the inserting hole and is fixedly connected with the pushing plate.

Through adopting above-mentioned technical scheme, through the flexible of control promotion cylinder piston rod, can control the removal of slurcam, realized the function that the copper bar after the convenient will cutting took out promptly.

The utility model discloses further set up to: the upper surface of the workbench is fixedly provided with a baffle which is arranged along the direction parallel to the positioning plate and is horizontally opposite to the positioning plate.

Through adopting above-mentioned technical scheme, the copper bar after being cut is promoted the back by pushing mechanism and probably slides along the upper surface of workstation, and the baffle plays limiting displacement to the copper bar that is promoted, consequently makes things convenient for the staff to collect the copper bar after finishing by the cutting.

To sum up, the utility model discloses following technological effect has:

1. by adopting the structure of the pressing piece, the function that the copper bar is not easy to warp when being cut is realized;

2. by adopting the structure of the adjusting piece, the function of adjusting the cut length of the copper bar is realized;

3. through the structure that adopts the moving member, realized conveniently with the function that takes out between cutter and the limiting plate the copper bar end after the cutting.

Drawings

FIG. 1 is a schematic three-dimensional view of the present example;

FIG. 2 is a partial three-dimensional schematic view of a protruding hold-down structure;

fig. 3 is a partial three-dimensional schematic view of a protruding adjuster structure.

In the figure, 1, a workbench; 11. a baffle plate; 2. a support frame; 21. a vertical plate; 22. a transverse plate; 3. a drive member; 4. a cutter; 5. a compression member; 51. a limiting plate; 511. a connecting plate; 52. a limiting frame; 521. a vertical rod; 522. a horizontal bar; 523. a connecting shaft; 53. an eccentric wheel; 6. an adjustment member; 61. positioning a plate; 611. a long hole; 612. a guide groove; 613. inserting the holes; 614. scale lines; 62. adjusting the bolt; 621. a threaded rod; 622. a bolt cap; 623. an auxiliary cap; 624. adjusting the nut; 7. a moving member; 71. a push plate; 72. a cylinder; 8. copper bars are arranged.

Detailed Description

As shown in fig. 1, the utility model provides a high accuracy copper bar cutting device, comprises a workbench 1, support frame 2, driving piece 3, cutter 4, compress tightly a 5 and moving member 7, workstation 1 places subaerial, support frame 2 is fixed to be set up on workstation 1, driving piece 3 is connected on support frame 2, cutter 4 fixed connection is on driving piece 3, driving piece 3 can drive cutter 4 and remove to the direction that is close to or keeps away from workstation 1 for support frame 2, compress tightly 5 and connect on workstation 1's upper surface and be located one side of cutter 4, it can compress tightly spacingly to copper bar 8 to compress tightly a 5, moving member 7 sets up on workstation 1's upper surface and is located between cutter 4 and the moving member 7, moving member 7 can promote copper bar 8 after the cutting along workstation 1's upper surface. When cutting copper bar 8, place copper bar 8 on the upper surface of workstation 1, make copper bar 8 pass support frame 2 and make the both ends of copper bar 8 be located cutter 4's both sides respectively, adjust behind the required cutting length of copper bar 8, compress tightly the part that copper bar 8 is located the cutting bed through compressing tightly 5, 3 control cutters of driving piece 4 are to the orientation whereabouts that is close to workstation 1, the realization is with the operation of copper bar 8 cutting, then relieve the spacing of compressing tightly 5 copper bar sections that finish to being cut, promote the copper bar section to keeping away from compressing tightly 5 through moving member 7, the staff collect the copper bar section can, because the copper bar 8 receives compressing tightly 5 when being cut and acts on, consequently even the copper bar 8 length is longer also the difficult emergence of copper bar 8 sticks up and moves.

As shown in fig. 1, the support frame 2 is a portal frame, the support frame 2 includes two horizontally opposite vertical plates 21 and a horizontal plate 22, the two vertical plates 21 are both perpendicular to the upper surface of the workbench 1, the horizontal plate 22 is fixedly connected between the ends of the two vertical plates 21 far away from the workbench 1, the horizontal plate 22 is parallel to the upper surface of the workbench 1, and the cutter 4 is located below the horizontal plate 22 and is arranged along the direction parallel to the horizontal plate 22.

As shown in fig. 1, the driving member 3 is a hydraulic cylinder, a cylinder body of the hydraulic cylinder is fixedly disposed on the transverse plate 22, and a piston rod of the hydraulic cylinder penetrates through the transverse plate 22 and is fixedly connected with the cutting knife 4. Through the flexible of control pneumatic cylinder piston rod, can make cutter 4 to being close to or keeping away from the direction removal of workstation 1, realize cutting the copper bar 8 of cutter 4 below promptly.

As shown in fig. 1, the pressing member 5 includes a limiting plate 51, a limiting frame 52 and an eccentric wheel 53, the limiting plate 51 is disposed on the upper surface of the worktable 1 and is located on one side of the supporting frame 2, the limiting plate 51 is perpendicular to the cutting knife 4, the limiting frame 52 is L-shaped, and referring to fig. 2, the limiting frame 52 includes a vertical rod 521 and a horizontal rod 522, the vertical rod 521 is fixedly connected above the edge of the limiting plate 51 close to the supporting frame 2, the vertical rod 521 is parallel to the vertical plate 21, the horizontal rod 522 is perpendicular to the vertical rod 521 and perpendicular to the cutting knife 4, the end part of the horizontal rod 522 far away from the vertical rod 521 is fixedly connected with a connecting shaft 523, the connecting shaft 523 is parallel to the cutter 4, the connecting shaft 523 is perpendicular to the plane where the vertical rod 521 and the horizontal rod 522 are located, the eccentric wheel 53 is rotatably connected to the connecting shaft 523, and when the eccentric wheel 53 is obliquely arranged relative to the vertical rod 521, the top of the eccentric wheel 53 can be abutted against the upper surface of the workbench 1. When placing copper bar 8, rotate eccentric wheel 53 to the direction of keeping away from limiting plate 51, place copper bar 8 in the below of cutter 4, copper bar 8 passes cutter 4's both sides, promote copper bar 8 one side and limiting plate 51 butt until copper bar 8, then rotate eccentric wheel 53 to the direction of being close to limiting plate 51, copper bar 8 with its below supports tightly until eccentric wheel 53's top, copper bar 8 is supported tightly by eccentric wheel 53 when being spacing by limiting plate 51, consequently, make copper bar 8 be difficult for the tilting, then cutter 4 cuts copper bar 8, the staff needn't use the hand direct and copper bar 8 contact, consequently, cause the damage to staff's hand when making copper bar 8 be cut, copper bar 8 is difficult for producing the error by the length of cutting when cutter 4 cuts copper bar 8 simultaneously.

In order to reduce eccentric wheel 53 top to cause wearing and tearing to the upper surface of copper bar 8 when supporting tightly with the upper surface of copper bar 8, the utility model discloses it is equipped with the rubber layer to fix to glue on eccentric wheel 53 top lateral wall. When the eccentric wheel 53 supports the copper bar 8 tightly, the rubber layer is in surface contact with the copper bar 8 and is made of flexible materials, so that the rubber layer reduces the abrasion between the eccentric wheel 53 and the surface of the copper bar 8, and the copper bar 8 is not easily abraded when supported tightly.

When the length of the copper bar 8 to be cut is different, the position of the position-limiting plate 51 needs to be adjusted, therefore, the adjusting part 6 for adjusting the position of the position-limiting plate 51 is additionally provided, as shown in fig. 3, the adjusting part 6 comprises a positioning plate 61 and an adjusting bolt 62, the positioning plate 61 is fixedly arranged on the upper surface of the workbench 1, the positioning plate 61 is arranged in the direction perpendicular to the position-limiting plate 51, a connecting plate 511 is fixedly connected to one side edge of the position-limiting plate 51 close to the positioning plate 61, the connecting plate 511 is L-shaped, the L-shaped opening faces the positioning plate 61, the connecting plate 511 abuts against the positioning plate 61, a long hole 611 is arranged on the upper surface of the positioning plate 61, the long hole 611 is arranged in the length direction parallel to the positioning plate 61, the adjusting bolt 62 comprises a threaded rod 621 and a bolt cap 622, the positioning plate 61 is hollow, the threaded rod 621 passes through, an adjusting nut 624 is screwed on the side of the threaded rod 621 remote from the bolt cap 622, and the adjusting nut 624 abuts against the upper surface of the connecting plate 511. When the distance between the limiting plate 51 and the support frame 2 needs to be adjusted, the adjusting nut 624 is far away from the connecting plate 511, the limiting plate 51 is moved along the positioning plate 61, the threaded rod 621 moves in the long hole 611, meanwhile, the bolt cap 622 slides along the inner side wall of the positioning plate 61 far away from the workbench 1, after the copper bar 8 is adjusted to the required shearing length, the threaded rod 621 is kept still by a worker, the adjusting nut 624 rotates along the adjusting bolt 62, until the adjusting nut 624 abuts against the connecting plate 511 on the upper surface of the positioning plate 61, the limiting plate 51 is abutted against the positioning plate 61 by the adjusting nut 624 and the bolt cap 622, the function of adjusting the position of the limiting plate 51 is achieved, and the adaptability of the pressing piece 5 is improved. An auxiliary cap 623 is fixedly connected to the end of the threaded rod 621 away from the bolt cap 622, and the auxiliary cap 623 facilitates a worker to hold the threaded rod 621 so that the threaded rod 621 is kept relatively stationary when the adjusting nut 624 rotates relative to the threaded rod 621.

When the staff promoted limiting plate 51 along locating plate 61, in order to make limiting plate 51 be difficult for locating plate 61 to take place the slope, as shown in fig. 2 and 3, the utility model discloses seted up guide way 612 on the upper surface of locating plate 61, the length direction of guide way 612 is on a parallel with the length direction of slot 611, and the tip and the guide way 612 sliding connection of limiting plate 51 are kept away from to connecting plate 511. The end of the connecting plate 511 is slidably connected with the guiding groove 612, and the sliding of the limiting plate 51 along the positioning plate 61 is more stable, so that the worker can conveniently adjust the relative position of the limiting plate 51 and the positioning plate 61. In order to conveniently and accurately limit the position of the limiting plate 51, as shown in fig. 3, a scale mark 614 is fixedly arranged at the edge of the long hole 611, the scale mark 614 is arranged in a direction parallel to the long hole 611, and a worker can measure the position of the limiting plate 51 away from the cutter 4 by observing the position of the connecting plate 511 opposite to the scale mark 614, that is, the position of the copper bar 8 can be accurately limited.

As shown in fig. 1, the moving member 7 includes a pushing mechanism and a pushing plate 71, an inserting hole 613 is formed in one side of the positioning plate 61 away from the limiting plate 51, a length direction of the inserting hole 613 is perpendicular to the limiting plate 51, the pushing plate 71 is located in the inserting hole 613, the pushing mechanism is fixedly disposed on one side of the positioning plate 61 away from the limiting plate 51, and the pushing mechanism can drive the pushing plate 71 to move towards a direction close to or away from the positioning plate 61 relative to the limiting plate 51. Pushing mechanism can adopt manual drive or cylinder 72 drive, for the convenience reduce staff's intensity of labour, as shown in fig. 1, the utility model discloses an above-mentioned second mode, pushing mechanism are cylinder 72, and the cylinder body of cylinder 72 is fixed to be set up on workstation 1 and lie in the locating plate and keep away from one side of limiting plate 51, and the piston rod of cylinder 72 passes to insert and establishes hole 613 and with slurcam 71 fixed connection. After the copper bar 8 is cut, the eccentric wheel 53 is rotated towards the direction far away from the limiting plate 51, the extension of the piston rod of the pushing cylinder 72 is controlled to drive the pushing plate 71 to push the copper bar 8 towards the direction far away from the positioning plate 61, and therefore the copper bar 8 does not need to be manually taken out from between the cutter 4 and the limiting plate 51 by a worker.

Copper bar 8 after being cut is promoted by pushing mechanism and probably follows the upper surface slip of workstation 1, collects copper bar 8 for the convenience of staff, as shown in fig. 1, the utility model discloses fixed baffle 11 that is provided with on the upper surface of workstation 1, baffle 11 sets up and is relative with locating plate 61 level along the direction that is on a parallel with locating plate 61. Baffle 11 plays limiting displacement to the copper bar 8 that is promoted, consequently makes things convenient for the staff to put the back to the copper bar 8 at baffle 11 border and collect can.

The utility model discloses a theory of operation does:

when the copper bar 8 is cut, the limit plate 51 is moved along the locating plate 61 according to the length of the required copper bar section, then the adjusting nut 624 tightly presses the connecting plate 511 for limiting, the limiting plate 51 is limited, then, the worker places the copper bar 8 on the upper surface of the workbench 1, rotates the eccentric wheel 53 far away from the limit plate 51, so that the copper bar 8 passes through the lower part of the eccentric wheel 53 and is abutted against the limit plate 51, then the eccentric wheel 53 is rotated towards the direction close to the limit plate 51, so that the top of the eccentric wheel 53 tightly supports and limits the upper surface of the copper bar 8, the copper bar 8 is tightly pressed, the tilting is not easy to occur, then the piston rod of the hydraulic cylinder drives the cutter 4 to cut the copper bar 8 below the cutter, after the copper bar 8 is cut, the piston rod of control cylinder 72 promotes the copper bar section to the direction that is close to baffle 11 for the copper bar section is gathered in one side of baffle 11, makes things convenient for the staff to collect.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a high accuracy copper bar cutting device, including workstation (1), support frame (2), driving piece (3) and cutter (4), support frame (2) are fixed to be set up on workstation (1), driving piece (3) are connected on support frame (2), cutter (4) fixed connection is on driving piece (3), driving piece (3) can drive cutter (4) and move to the direction of being close to or keeping away from workstation (1) for support frame (2), a serial communication port, cutting device still includes compressing tightly (5), compressing tightly (5) including limiting plate (51), spacing (52) and eccentric wheel (53), limiting plate (51) set up on the upper surface of workstation (1) and lie in one side of support frame (2), spacing (52) are the L shape, spacing (52) include montant (521) and horizon bar (522), montant (521) fixed connection is above limiting plate (51) are close to the border of support frame (2), montant (521) perpendicular to limiting plate (51), horizontal pole (522) perpendicular to montant (521) and be on a parallel with limiting plate (51), fixedly connected with connecting axle (523) on the tip of montant (521) is kept away from in horizontal pole (522), the plane at connecting axle (523) perpendicular to horizontal pole (522) and montant (521) place, eccentric wheel (53) rotate to be connected on connecting axle (523), when eccentric wheel (53) set up for montant (521) slope, the top of eccentric wheel (53) can with the upper surface butt of workstation (1).

2. A high precision copper bar cutting device according to claim 1, wherein a rubber layer is fixedly adhered to the outer side wall of the top of the eccentric wheel (53).

3. The high-precision copper bar cutting device according to claim 1, wherein an adjusting piece (6) is arranged between the limiting plate (51) and the workbench (1), the adjusting piece (6) comprises a positioning plate (61), an adjusting bolt (62) and an adjusting nut (624), the positioning plate (61) is fixedly arranged on the upper surface of the workbench (1), the positioning plate (61) is arranged in a direction perpendicular to the limiting plate (51), a connecting plate (511) is fixedly connected to one side edge of the limiting plate (51) close to the positioning plate (61), the connecting plate (511) is L-shaped, the L-shaped opening faces the positioning plate (61), the connecting plate (511) is abutted against the positioning plate (61), a long hole (611) is formed in the upper surface of the positioning plate (61), the long hole (611) is arranged in a direction perpendicular to the limiting plate (51), the adjusting bolt (62) comprises a threaded rod (621) and a bolt cap (622), the locating plate (61) is hollow, the threaded rod (621) penetrates through the connecting plate (511) and the long hole (611), the bolt cap (622) is located in the locating plate (61) and is abutted to the inner side wall, away from the workbench (1), of the locating plate (61), the adjusting nut (624) is in threaded connection with one side, away from the bolt cap (622), of the threaded rod (621), and the adjusting nut (624) is abutted to the upper surface of the connecting plate (511).

4. A high-precision copper bar cutting device according to claim 3, wherein scale marks (614) are fixedly arranged at the edge of the long hole (611), and the scale marks (614) are arranged in a direction parallel to the long hole (611).

5. A high-precision copper bar cutting device according to claim 4, wherein a guide groove (612) is formed in the upper surface of the positioning plate (61), the length direction of the guide groove (612) is parallel to the length direction of the long hole (611), and the end of the connecting plate (511) far away from the limiting plate (51) is connected with the guide groove (612) in a sliding manner.

6. The high-precision copper bar cutting device according to claim 3, wherein the cutting device further comprises a moving member (7), the moving member (7) comprises a pushing mechanism and a pushing plate (71), one side, far away from the limiting plate (51), of the positioning plate (61) is provided with an inserting hole (613), the length direction of the inserting hole (613) is perpendicular to the limiting plate (51), the pushing plate (71) is located in the inserting hole (613), the pushing mechanism is fixedly arranged on one side, far away from the limiting plate (51), of the positioning plate (61), and the pushing mechanism can drive the pushing plate (71) to move towards the direction close to or far away from the positioning plate (61) relative to the limiting plate (51).

7. A high precision copper bar cutting device according to claim 6, wherein the pushing mechanism is an air cylinder (72), the cylinder body of the air cylinder (72) is fixedly arranged on the workbench and is located on one side of the positioning plate (61) far away from the limiting plate (51), and the piston rod of the air cylinder (72) passes through the insertion hole (613) and is fixedly connected with the pushing plate (71).

8. A high precision copper bar cutting device according to claim 6, characterized in that a baffle (11) is fixedly arranged on the upper surface of the working table (1), the baffle (11) is arranged along the direction parallel to the positioning plate (61) and is horizontally opposite to the positioning plate (61).