CN210548485U

CN210548485U - Cutting equipment for processing counterweight blocks of elevator

Info

Publication number: CN210548485U
Application number: CN201921185789.7U
Authority: CN
Inventors: 贝学强
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2020-05-19
Anticipated expiration: 2029-07-25

Abstract

The utility model relates to a cutting equipment for processing elevator is to pouring weight. The technical scheme is as follows: a cutting device for processing counterweight blocks of an elevator comprises a base, wherein a polygonal pipe is mounted on the base, a lead screw nut mechanism is sleeved in the polygonal pipe, one end of the lead screw nut mechanism is connected with a driving mechanism, and the driving mechanism is mounted on the base; an open slot is formed in the polygonal tube, a plurality of cutting mechanisms are fixed on the screw nut mechanism, and the other ends of the cutting mechanisms extend out of the open slot; the base is also connected with a workpiece platform for placing workpieces. The utility model provides a can carry out the cutting equipment of straight line, steady cutting to the pouring weight to the elevator, improve the cutting quality of elevator cast steel to the pouring weight surface.

Description

Cutting equipment for processing counterweight blocks of elevator

Technical Field

The utility model belongs to the technical field of the elevator is to pouring weight processing, concretely relates to a cutting equipment for processing elevator is to pouring weight.

Background

The conventional cast steel counterweight block of the elevator is usually formed by flame numerical control cutting, and the cast steel counterweight block is made of a steel plate. The steel plate is too expensive, so that the cost is high. The surface of the cast counterweight block is uneven, so that the surface of the counterweight block needs to be cut off by cast steel or cast iron to ensure that the counterweight block is smooth. The smelting casting is adopted to perform one-time casting molding (steel die casting process) on different outline of the product, and then the semi-finished product formed by casting is accurately cut into a finished product, so that the cost is reduced, and the production efficiency is improved.

The invention patent with the patent application number of CN201811489556.6 discloses a double-saw-blade metal cutting machine, which comprises a main table top, wherein the lower end of the main table top is fixedly connected with a pair of supporting plates, the upper end of the main table top is provided with a main slide way, the main slide way is connected with a pair of main slide seats in a sliding way, the main slide seats are fixedly connected with a fixing device, the main slide seats are rotatably connected with a cutting machine main body, the cutting machine main body is fixedly connected with a motor, the motor is fixedly connected with a saw blade, the motor is fixedly connected with a protective cover corresponding to the saw blade, the motor is fixedly connected with a connecting rod, the double-head fixing of the metal tube can be realized, the stability of the metal tube in the cutting process can be greatly improved, the cutting precision is greatly improved, the structure of double saw blades is adopted, two metal tubes can be simultaneously cut, the, is beneficial to popularization.

However, the mass of the cast steel of the elevator to the weight is large, so that the workpiece is difficult to accurately move manually during cutting, and the accuracy of the cutting quality and the cutting size is difficult to ensure. Therefore, the metal cutting machine is not suitable for cutting the weight by the elevator cast steel.

The utility model patent with the patent application number of CN201320452557.X discloses a blade cutting circular saw blade structure of a double-blade cutting machine, which comprises a machine body, wherein two circular saw blades which are parallel and concentric with each other are arranged on one side of the machine body, a first circular saw blade is arranged on the outer side of a second circular saw blade, a saw blade nut is arranged on the outer side of the first circular saw blade, and the cutting blade of the second circular saw blade comprises two cutting blade heads; the utility model discloses simple structure lets leave the clearance between the cutting edge, just so makes the cutting process not have the sweeps and get into the clearance between the circular saw blade, has guaranteed that the cutting machine cuts smoothly, has consequently reduced the waste of resource, has reduced working time, has improved production efficiency.

The cutting machine is handheld, and the elevator cast steel is conveniently cut through the movable cutting machine to the weight block. However, when the cutting machine is held by hands, a worker is difficult to accurately control a cutting path, and the cutting precision is difficult to guarantee. And during the cutting, the stability of cutting machine is difficult to guarantee, and the cutting plane of work piece can't guarantee the voucher.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model aims to provide a can carry out the cutting equipment of straight line, steady cutting to the pouring weight to the elevator, improve the cutting quality of elevator cast steel to the pouring weight surface.

The utility model discloses the technical scheme who adopts does:

a cutting device for processing counterweight blocks of an elevator comprises a base, wherein a polygonal pipe is mounted on the base, a lead screw nut mechanism is sleeved in the polygonal pipe, one end of the lead screw nut mechanism is connected with a driving mechanism, and the driving mechanism is mounted on the base; an open slot is formed in the polygonal tube, a plurality of cutting mechanisms are fixed on the screw nut mechanism, and the other ends of the cutting mechanisms extend out of the open slot; the base is also connected with a workpiece platform for placing workpieces.

Preferably, the screw nut mechanism comprises a screw, the screw is sleeved in the polygonal pipe, one end of the screw is connected with the driving mechanism, the other end of the screw is connected to the base through a bearing, the screw is in threaded connection with a plurality of polygonal blocks, and the cutting mechanism is fixed on the polygonal blocks.

Preferably, the polygonal tube is a square tube, and the polygonal block is a square block.

Preferably, the length of the diagonal line of the square block is greater than the side length of the square pipe, and the side length of the square block is less than the side length of the square pipe.

Preferably, the driving mechanism comprises a motor, an output shaft of the motor is connected with a speed reducer, the motor and the speed reducer are both mounted on the base, and an output shaft of the speed reducer is connected with the screw nut mechanism.

Preferably, the cutting mechanism comprises a lifting assembly, one end of the lifting assembly is fixed on the screw nut mechanism, and the other end of the lifting assembly is provided with the cutting machine.

Preferably, the lifting assembly comprises a sleeve, a support rod is sleeved in the sleeve, and the cutting machine is mounted on the support rod; the relative both sides all are provided with the bar hole on the sleeve pipe, are provided with the through-hole on the bracing piece, and the through-hole endotheca of bracing piece is equipped with the bolt, and two bar holes are passed from respectively at the both ends of bolt, and the nut of bolt compresses tightly on the sheathed tube outer wall.

Preferably, a blocking frame is fixed on the workpiece platform, the top of the blocking frame is connected with a top pressing mechanism, and the top pressing mechanism is pressed on the top of the workpiece; the side wall of the blocking frame is connected with a side edge pressing mechanism, and the side edge pressing mechanism is pressed on the side edge of the workpiece.

Preferably, the top hold-down mechanism comprises a top screw rod, the top screw rod is in threaded connection with the top of the blocking frame, a top hand wheel is fixed at one end of the top screw rod, the other end of the top screw rod is connected with a top pressure plate through a spherical hinge, and the other end of the top pressure plate is tightly pressed on the top of the workpiece.

Preferably, the side hold-down mechanism comprises a side screw rod, the side screw rod is in threaded connection with the side of the blocking frame, a side hand wheel is fixed at one end of the side screw rod, the other end of the side screw rod is connected with a side pressure plate through a spherical hinge, and the other end of the side pressure plate is tightly pressed on the side of the workpiece.

The utility model has the advantages that:

1. the utility model discloses an actuating mechanism can drive the action of lead screw nut mechanism, and polygonal piece that polygonal pipe can restrict lead screw nut mechanism rotates, then cutting mechanism can follow the direction rectilinear movement of open slot, guarantees that cutting mechanism is accurate to the cutting route of work piece. The screw nut mechanism has a determined transmission ratio, so that the cutting mechanism can stably move, the cutting mechanism can stably cut the surface of a workpiece, and the cutting surface of the workpiece is ensured to be flat.

2. When the driving mechanism drives the screw rod to rotate, the polygonal block moves spirally relative to the screw rod. Since the screw rod does not move linearly and the polygonal block is restricted from rotating by the polygonal tube, the polygonal block moves only linearly. The screw nut mechanism has a determined transmission ratio, so that after the driving mechanism is started, the polygonal block moves at a constant speed, the cutting mechanism correspondingly cuts the workpiece at a constant speed, and the cutting surface of the workpiece is accurate and flat.

3. Polygonal block is square piece, then the square piece of restriction rotates in the square pipe, guarantees square piece and only follows rectilinear movement, guarantees that cutting mechanism carries out steady cutting to the work piece.

4. The diagonal length of square piece is greater than the length of side of square pipe, then square piece can not square intraductal rotation again, then square piece, cutting mechanism homoenergetic along rectilinear movement, guarantee the accuracy in motion route. The side length of square piece is less than the side length of square pipe, guarantees that square piece can accurately install in square pipe.

5. The motor drives the speed reducer to act, and the speed reducer drives the screw nut mechanism to act. After the motor is started, the screw nut mechanism can continuously act, and the cutting mechanism can linearly move at a constant speed, so that the cutting saw blade can stably cut a workpiece.

6. The lifting assembly can adjust the extension length, and the height of the cutting machine can be adjusted. Through the extension length of the adjusting lifting component, the cutting saw blade of the cutting machine can reach the position of the workpiece, and the workpiece is guaranteed to be accurately cut.

7. When the height of the cutting machine is adjusted, the supporting rod is moved to the position determined in the sleeve, the bolt penetrates through the through holes of the two strip-shaped holes and the supporting rod, and the supporting rod is locked by the nut. The extension length of the support rod relative to the sleeve is adjusted, and the height of the cutting machine can be adjusted according to the height of a workpiece. The bracing piece is locked by the bolt, avoids the condition that the bracing piece removed by oneself in the sleeve pipe during cutter operation, guarantees the stability in the cutter working process.

8. The top pressing mechanism can press the workpiece from the top of the workpiece, the side pressing mechanism can press the workpiece from the side edge of the workpiece, and then the workpiece can be fixed on the workpiece platform, so that the workpiece is prevented from moving when being cut, and the accuracy of a cutting path is ensured.

9. When the workpiece is placed on the workpiece platform, the top hand wheel is screwed, the top screw is screwed into the top of the blocking frame, the top pressing plate is pressed on the top of the workpiece, and the workpiece is prevented from moving when being cut. When the top pressing plate presses the top of the workpiece tightly, the workpiece is not easy to deviate under the action of external force. When the cutting mechanism cuts the workpiece, the cutting path of the workpiece by the cutting mechanism is accurate, and accordingly the cutting precision is improved.

10. When the workpiece is placed on the workpiece platform, the side hand wheel is screwed, the side screw is screwed into the side of the blocking frame, the side pressing plate is pressed on the side of the workpiece, and the workpiece is prevented from moving when being cut. When the top pressing plate presses the top of the workpiece tightly, the workpiece is not easy to deviate under the action of external force. When the cutting mechanism cuts the workpiece, the cutting path of the workpiece by the cutting mechanism is accurate, and accordingly the cutting precision is improved.

The advantages of the invention are not limited to the description, but rather are described in greater detail in the detailed description for better understanding.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

It will be appreciated by those skilled in the art that the objects and advantages that can be achieved with the present invention are not limited to the details set forth above, and that these and other objects that can be achieved with the present invention will be more clearly understood from the following detailed description.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a partial block diagram of the present invention;

3 FIG. 3 3 3 is 3 a 3 cross 3- 3 sectional 3 view 3 taken 3 at 3 A 3- 3 A 3 of 3 FIG. 32 3; 3

FIG. 4 is a schematic structural view of a top hold-down mechanism;

fig. 5 is a schematic structural view of the side pressing mechanism.

In the figure: 1-a base; 2-polygonal tubes; 3-a screw nut mechanism; 4-a drive mechanism; 5-a cutting mechanism; 6-a workpiece platform; 7-a top hold down mechanism; 8-a side edge pressing mechanism; 21-an open slot; 31-a lead screw; 32-polygonal blocks; 41-a motor; 42-a reducer; 51-a lifting assembly; 52-a cutter; 61-a blocking frame; 71-top screw; 72-top hand wheel; 73-top press plate; 81-side screw; 82-side hand wheel; 83-side press plate; 511-cannula; 512-support rods; 513-strip shaped holes.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example 1:

as shown in fig. 1, the utility model comprises a base 1, a polygonal tube 2 is installed on the base 1, a screw nut mechanism 3 is sleeved in the polygonal tube 2, one end of the screw nut mechanism 3 is connected with a driving mechanism 4, and the driving mechanism 4 is installed on the base 1; an open slot 21 is arranged on the polygonal tube 2, a plurality of cutting mechanisms 5 are fixed on the screw nut mechanism 3, and the other ends of the cutting mechanisms 5 extend out of the open slot 21.

The utility model discloses an actuating mechanism 4 can drive 3 actions of lead screw nut mechanism, and multilateral venturi tube 2 can restrict the multilateral piece 32 rotation of lead screw nut mechanism 3, then cutting mechanism 5 can follow the direction rectilinear movement of open slot 21, and the path is accurate when guaranteeing cutting mechanism 5 to the cutting of work piece. The screw nut mechanism 3 has a determined transmission ratio, the cutting mechanism 5 can move stably, the cutting mechanism 5 can cut the surface of a workpiece stably, and the cutting surface of the workpiece is ensured to be flat.

The screw nut mechanism 3 comprises a screw 31, the screw 31 is sleeved in the polygonal tube 2, one end of the screw 31 is connected with the driving mechanism 4, the other end of the screw 31 is connected to the base 1 through a bearing, the screw 31 is in threaded connection with a plurality of polygonal blocks 32, and the cutting mechanism 5 is fixed on the polygonal blocks 32.

When the driving mechanism 4 drives the lead screw 31 to rotate, the polygonal block 32 moves spirally with respect to the lead screw 31. Since the screw 31 does not move linearly and the polygonal block 32 is restricted in rotation by the polygonal tube 2, the polygonal block 32 moves linearly only. The screw nut mechanism 3 has a determined transmission ratio, and when the driving mechanism 4 is started, the polygonal block 32 moves at a constant speed, and the cutting mechanism 5 correspondingly cuts the workpiece at a constant speed, so that the cutting surface of the workpiece is accurate and flat.

The number of the polygonal blocks 32 screwed on the screw rod 31 is two, and the number of the cutting mechanisms 5 is also two. The saw blades of the two cutting mechanisms 5 are positioned in the same vertical plane, so that the two saw blades can cut the same position of the workpiece. Before the saw blades are installed, the height difference of the two saw blades is adjusted to be proper, and then the two saw blades respectively cut different height positions on the same plane of the workpiece. There is a clearance of about 5cm between the saw bit and the casing of cutting mechanism 5, and the thickness that the part was cut off to the work piece is less than 5cm, then the casing of cutting mechanism 5 can not produce the interference with the work piece, and two cutting mechanism 5 can cut the work piece simultaneously, guarantee the bigger cutting width in the vertical direction.

The driving mechanism 4 comprises a motor 41, an output shaft of the motor 41 is connected with a speed reducer 42, the motor 41 and the speed reducer 42 are both mounted on the base 1, and an output shaft of the speed reducer 42 is connected with the screw nut mechanism 3.

The motor 41 drives the speed reducer 42 to operate, and the speed reducer 42 drives the lead screw nut mechanism 3 to operate. After the motor 41 is started, the lead screw nut mechanism 3 can continuously act, and the cutting mechanism 5 can linearly move at a constant speed, so that the cutting saw blade can stably cut a workpiece.

Further, the polygonal tube 2 is a square tube, and the polygonal blocks 32 are square blocks. The length of the diagonal line of the square block is larger than the side length of the square pipe, and the side length of the square block is smaller than the side length of the square pipe.

Polygonal block 32 is square, then square intraductal restriction square rotates, guarantees square only along rectilinear movement, guarantees that cutting mechanism 5 carries out steady cutting to the work piece. The diagonal length of square piece is greater than the length of side of square pipe, then square piece can not square intraductal rotation again, then square piece, cutting mechanism 5 homoenergetic along rectilinear movement, guarantee the accuracy in motion route. The side length of square piece is less than the side length of square pipe, guarantees that square piece can accurately install in square pipe.

Example 2:

as shown in fig. 2, in embodiment 1, the cutting mechanism 5 includes an elevating and lowering unit 51, one end of the elevating and lowering unit 51 is fixed to the screw nut mechanism 3, and a cutter 52 is attached to the other end of the elevating and lowering unit 51. The elevation assembly 51 can adjust the extension length, and the height of the cutter 52 can be adjusted. By adjusting the extension length of the lifting assembly 51, the cutting blade position of the cutting machine 52 can reach the position of the workpiece, and the workpiece is ensured to be accurately cut.

Further, as shown in fig. 3, the lifting assembly 51 includes a sleeve 511, a support rod 512 is sleeved in the sleeve 511, and the cutter 52 is mounted on the support rod 512; the both sides relative on the sleeve pipe 511 all are provided with the bar hole 513, are provided with the through-hole on the bracing piece 512, and the through-hole endotheca of bracing piece 512 is equipped with the bolt, and two ends of bolt pass from two bar holes 513 respectively, and the nut of bolt compresses tightly on sleeve pipe 511's outer wall.

When the height of the cutter 52 is adjusted, the support rod 512 is moved to a predetermined position in the sleeve 511, and is passed through the two strip holes 513 and the through hole of the support rod 512 by bolts and is locked by nuts. The protruding length of the support rod 512 with respect to the sleeve 511 is adjusted, and the height of the cutter 52 can be adjusted according to the height of the workpiece. The supporting rod 512 is locked by the bolt, so that the situation that the supporting rod 512 moves in the sleeve 511 by itself when the cutting machine 52 works is avoided, and the stability of the cutting machine 52 in the working process is ensured.

Example 3:

on the basis of the embodiment 1 or the embodiment 2, the base 1 is further connected with a workpiece platform 6 for placing a workpiece, a blocking frame 61 is fixed on the workpiece platform 6, the top of the blocking frame 61 is connected with a top pressing mechanism 7, and the top pressing mechanism 7 is pressed on the top of the workpiece; the side wall of the blocking frame 61 is connected with a side edge pressing mechanism 8, and the side edge pressing mechanism 8 is pressed on the side edge of the workpiece.

The top pressing mechanism 7 can press the workpiece from the top of the workpiece, the side pressing mechanism 8 can press the workpiece from the side of the workpiece, and the workpiece can be fixed on the workpiece platform 6, so that the workpiece is prevented from moving when being cut, and the accuracy of a cutting path is ensured.

Further, as shown in fig. 4, the top pressing mechanism 7 includes a top screw 71, the top screw 71 is screwed to the top of the blocking frame 61, a top hand wheel 72 is fixed to one end of the top screw 71, a top pressing plate 73 is connected to the other end of the top screw 71 through a spherical hinge, and the other end of the top pressing plate 73 presses the top of the workpiece. When a workpiece is placed on the workpiece platform 6, the top hand wheel 72 is screwed, the top screw rod 71 is screwed into the top of the baffle frame 61, and the top pressure plate 73 is pressed on the top of the workpiece, so that the workpiece is prevented from moving when being cut. When the top pressing plate 73 presses the top of the workpiece, the workpiece is not easily displaced when being subjected to an external force. When the cutting mechanism 5 cuts the workpiece, the cutting path of the workpiece by the cutting mechanism 5 is accurate, and accordingly the cutting precision is improved.

Further, as shown in fig. 5, the side pressing mechanism 8 includes a side screw 81, the side screw 81 is connected to the side of the blocking frame 61 in a threaded manner, a side hand wheel 82 is fixed to one end of the side screw 81, a side pressing plate 83 is connected to the other end of the side screw 81 through a spherical hinge, and the other end of the side pressing plate 83 is pressed against the side of the workpiece. 10. When a workpiece is placed on the workpiece platform 6, the side hand wheel 82 is screwed, the side screw 81 is screwed into the side of the retaining frame 61, and the side pressing plate 83 is pressed on the side of the workpiece, so that the workpiece is prevented from moving when being cut. When the top pressing plate 83 presses the top of the workpiece, the workpiece is not easily displaced when subjected to an external force. When the cutting mechanism 5 cuts the workpiece, the cutting path of the workpiece by the cutting mechanism 5 is accurate, and accordingly the cutting precision is improved.

The working principle is as follows:

the workpiece is placed on the workpiece platform 6, the top hand wheel 72 and the side hand wheel 82 are screwed, and the top pressing plate 73 and the side pressing plate 83 respectively press the top and the side of the workpiece, so that the workpiece is prevented from moving in the cutting process, and the cutting precision of the workpiece is correspondingly improved.

The height of the cutter 52 is adjusted by pulling the support rod 512 to adjust the support rod 512 to a proper height. The bolts sequentially pass through the strip-shaped holes 513 of the sleeve 511 and the through holes of the support rod 512, and then are screwed tightly by nuts, so that the support rod 512 and the sleeve 511 are reliably fixed, and the condition that the height position of the cutting machine 52 is unstable during working is avoided.

The motor 41 is started, the motor 41 drives the speed reducer 42 to operate, the speed reducer 42 drives the screw rod 31 to rotate, and the polygonal block 32 moves spirally with respect to the screw rod 31. Since the screw 31 cannot move linearly and the polygonal block 32 is restricted in rotation by the polygonal tube 2, the polygonal block 32 can move only linearly. When the polygonal block 32 moves linearly, the lifting assembly 51 and the cutting machine 52 move, so that the cutting machine 52 can accurately cut the workpiece along the straight line. Because the screw nut mechanism 3 has a determined transmission ratio, the polygonal block 32 can linearly move at a uniform speed, the moving stability of the cutting machine 52 is ensured, and the cutting quality and precision of the workpiece can be accurately controlled.

The utility model discloses mainly used cast steel or cast iron guarantee to pouring weight surfacing to the cutting of pouring weight. Compare flame cutting mode, the utility model discloses can carry out automatic fast cutting to the pouring weight, and obtain guaranteeing the surface smoothness of pouring weight.

The utility model discloses be not limited to and cast fashioned cutting the pouring weight, still can cut other work pieces. As long as the part of the workpiece to be cut does not interfere with the cutting machine 52 of the present invention, the present invention can be used to rapidly cut the workpiece.

The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.

Claims

1. A cutting equipment for processing elevator counterweight block which characterized in that: the device comprises a base (1), wherein a polygonal tube (2) is installed on the base (1), a screw nut mechanism (3) is sleeved in the polygonal tube (2), one end of the screw nut mechanism (3) is connected with a driving mechanism (4), and the driving mechanism (4) is installed on the base (1); an open slot (21) is formed in the polygonal tube (2), a plurality of cutting mechanisms (5) are fixed on the lead screw nut mechanism (3), and the other ends of the cutting mechanisms (5) extend out of the open slot (21).

2. The cutting apparatus for processing an elevator counterweight block of claim 1, wherein: the screw rod nut mechanism (3) comprises a screw rod (31), the screw rod (31) is sleeved in the polygonal tube (2), one end of the screw rod (31) is connected with the driving mechanism (4), the other end of the screw rod (31) is connected to the base (1) through a bearing, the screw rod (31) is in threaded connection with a plurality of polygonal blocks (32), and the cutting mechanism (5) is fixed on the polygonal blocks (32).

3. A cutting apparatus for processing elevator counterweight blocks according to claim 2, wherein: the polygonal tube (2) is a square tube, and the polygonal block (32) is a square block.

4. A cutting apparatus for processing elevator counterweight blocks according to claim 3, wherein: the length of the diagonal line of the square block is larger than the side length of the square pipe, and the side length of the square block is smaller than the side length of the square pipe.

5. The cutting apparatus for processing an elevator counterweight block of claim 1, wherein: the driving mechanism (4) comprises a motor (41), an output shaft of the motor (41) is connected with a speed reducer (42), the motor (41) and the speed reducer (42) are both installed on the base (1), and an output shaft of the speed reducer (42) is connected with the screw and nut mechanism (3).

6. The cutting apparatus for processing an elevator counterweight block of claim 1, wherein: the cutting mechanism (5) comprises a lifting assembly (51), one end of the lifting assembly (51) is fixed on the screw nut mechanism (3), and the other end of the lifting assembly (51) is provided with a cutting machine (52).

7. The cutting apparatus for processing elevator counterweight blocks according to claim 6, wherein: the lifting assembly (51) comprises a sleeve (511), a support rod (512) is sleeved in the sleeve (511), and the cutting machine (52) is installed on the support rod (512); the both sides relative on sleeve pipe (511) all are provided with bar hole (513), are provided with the through-hole on bracing piece (512), and the through-hole endotheca of bracing piece (512) is equipped with the bolt, and two bar holes (513) are passed from respectively at the both ends of bolt, and the nut of bolt compresses tightly on the outer wall of sleeve pipe (511).

8. The cutting apparatus for processing an elevator counterweight block according to any one of claims 1 to 7, wherein: the base (1) is also connected with a workpiece platform (6) for placing a workpiece, a blocking frame (61) is fixed on the workpiece platform (6), the top of the blocking frame (61) is connected with a top pressing mechanism (7), and the top pressing mechanism (7) is pressed on the top of the workpiece; the side wall of the blocking frame (61) is connected with a side pressing mechanism (8), and the side pressing mechanism (8) is pressed on the side of the workpiece.

9. The cutting apparatus for processing elevator counterweight blocks according to claim 8, wherein: the top pressing mechanism (7) comprises a top screw rod (71), the top screw rod (71) is in threaded connection with the top of the blocking frame (61), a top hand wheel (72) is fixed at one end of the top screw rod (71), the other end of the top screw rod (71) is connected with a top pressing plate (73) through a spherical hinge, and the other end of the top pressing plate (73) is pressed on the top of a workpiece.

10. The cutting apparatus for processing elevator counterweight blocks according to claim 8, wherein: the side pressing mechanism (8) comprises a side screw rod (81), the side screw rod (81) is in threaded connection with the side of the blocking frame (61), a side hand wheel (82) is fixed to one end of the side screw rod (81), the other end of the side screw rod (81) is connected with a side pressing plate (83) through a spherical hinge, and the other end of the side pressing plate (83) is pressed on the side of the workpiece.