CN118372037B - Machine tool machining device for producing reciprocating screw rod and machining method thereof - Google Patents

Abstract

The present invention is applicable to the technical field of reciprocating screw production, and provides a machine tool processing device for reciprocating screw production and a processing method thereof, including a workbench and a positioning component and an auxiliary component installed on the top of the workbench. The device solves the problem that the reciprocating screw needs to be processed by multiple sets of machine tools and needs to be positioned repeatedly, which is not only cumbersome to operate but also affects the accuracy of the secondary processing of the reciprocating screw. It also solves the problem that the existing trimming method is the same as milling, and there are still sharp edges and corners at the intersection of the thread grooves in two directions, which the staff still need to deal with later. The device, by setting a processing mechanism and a grinding component, can realize the secondary processing of the thread groove of the reciprocating screw raw material bar after cutting the thread groove by using the trimming drive component, the trimming processing component and the grinding component to remove the sharp edges and corners at the intersecting position of the thread groove without replacing the position of the reciprocating screw raw material bar.

Description

A machine tool processing device for reciprocating screw rod production and a processing method thereof

Technical Field

The invention relates to the technical field of reciprocating screw rod processing, and more specifically, to a machine tool processing device for producing a reciprocating screw rod and a processing method thereof.

Background Art

A reciprocating screw is a transmission device that uses the characteristics of a thread pair to convert torque into linear force or displacement. It is widely used in various mechanical designs, such as CNC machine tools, robots, heavy machinery, etc.

At present, reciprocating screw rods are processed by milling. According to the specifications and requirements of the reciprocating screw rods, suitable raw materials are selected, and then a milling lathe is used to reciprocately mill the thread groove on the outer wall of the raw material. After milling is completed, the machine tool is replaced for fine processing to make the thread groove size meet the requirements.

However, when the reciprocating screw is processed using the above process, since the milling machine tool adopts reciprocating processing, corners will be formed at the intersection of the thread grooves in the two directions, that is, the milling lathe mills forward along the outer wall of the reciprocating screw, and the two inner edges of the positive thread groove are continuous and flat at this time. However, when milling backward, the reverse thread groove will cut off the positive thread groove and form a reverse inner edge. Since the walking route is repeated, a bulge will appear on the inner edge of the reverse thread groove where the positive thread groove is cut off. When the crescent pin of the reciprocating screw moves along the positive thread groove, it will be affected by this bulge and The thread groove of the reciprocating screw is reciprocated by the rotation of the reciprocating screw and the displacement of the processing wheel. The processing route is the same as milling. For this reason, there will still be a bulge on the inner edge of the reverse thread groove at the place where the forward thread groove is cut off, and there are still edges and corners at the intersection of the thread grooves in two directions. The staff still need to deal with it later, which greatly reduces the functionality of the existing lathes. In addition, the reciprocating screw is processed by multiple sets of machine tools and needs to be positioned repeatedly. Not only is the operation cumbersome, but it also affects the accuracy of the secondary processing of the reciprocating screw.

Summary of the invention

In view of the deficiencies in the prior art, the object of the present invention is to provide a machine tool processing device and a processing method for reciprocating screw production.

To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a machine tool processing device for reciprocating screw production, comprising a workbench and a positioning assembly and an auxiliary assembly installed on the top of the workbench, a reciprocating screw being horizontally arranged between the positioning assembly and the auxiliary assembly, and a cutting assembly and a dressing drive assembly being respectively arranged on the top of the workbench and on both sides of the outer side wall of the reciprocating screw.

The cutting assembly comprises a cutting drive mechanism and a cutting processing mechanism, wherein the cutting drive mechanism is connected to a workbench, the cutting processing mechanism is mounted on a side wall of the cutting drive mechanism, and the cutting drive mechanism is arranged horizontally toward the reciprocating screw rod.

A trimming processing assembly is arranged on the side of the trimming driving assembly facing the reciprocating screw rod. The trimming processing assembly includes a base connected to the trimming driving assembly and a trimming processing motor installed at the bottom of the base. The trimming processing motor is arranged facing the reciprocating screw rod. A processing mechanism is installed at the output end of the trimming processing motor.

The processing mechanism includes a connecting frame connected to the output end of the dressing motor and a connecting rod equidistantly installed on the side of the connecting frame away from the dressing motor. The end of the connecting rod away from the connecting frame is connected to a mounting plate, and a grinding assembly is installed at the center of a side of the mounting plate away from the connecting rod.

The grinding assembly includes a grinding drive cylinder connected to a mounting plate, a piston rod of the grinding drive cylinder being arranged away from the mounting plate, the piston rod of the mounting plate being connected to a carrying plate, one side of the carrying plate being rotatably connected to a driving wheel and two driven wheels, the two driven wheels being arranged at a position on a side wall of the carrying plate away from the grinding drive cylinder, and the two driven wheels being stacked in a vertical direction, the outer side walls of the driving wheel and the two driven wheels being transmission-connected to a grinding belt, the grinding belt being located between the two driven wheels, being vertically arranged and being arranged toward the reciprocating screw rod.

The present invention is further configured as follows: the positioning assembly includes a support plate installed on one side of the top of the workbench and a rotating cylinder installed on the side wall of the support plate, the output end of the rotating cylinder is installed with a first pneumatic chuck, and the reciprocating screw is inserted into the interior of the first pneumatic chuck.

The present invention is further configured as follows: the auxiliary component includes a vertical plate installed on the top of the workbench and located at the other end of the reciprocating screw away from the positioning component, an auxiliary motor is installed on the side of the vertical plate close to the reciprocating screw, and a second pneumatic chuck is installed on the output end of the auxiliary motor facing one end of the reciprocating screw, and the end of the reciprocating screw away from the positioning component is inserted into the interior of the second pneumatic chuck.

By adopting the above technical scheme, by setting up a processing mechanism and a grinding component, when the auxiliary component clamps the reciprocating screw and the positioning component cancels the clamping, the cutting component can be used to perform a thread groove cutting operation on the reciprocating screw raw material bar; when the auxiliary component cancels the clamping of the reciprocating screw and the positioning component clamps the reciprocating screw, the dressing drive component, the dressing processing component and the grinding component can cooperate to perform a secondary thread groove processing operation on the reciprocating screw raw material bar after cutting the thread groove, and remove the edges and corners at the staggered positions of the thread groove without having to replace the position of the reciprocating screw raw material bar.

The present invention is further configured as follows: the cutting drive mechanism includes a cutting electric slide rail installed on the top of the workbench, the cutting electric slide rail is arranged parallel to the extension direction of the reciprocating screw rod, the top of the cutting electric slide rail is slidably connected with a slide, the top of the slide is installed with a first cutting cylinder, the first cutting cylinder is arranged toward the reciprocating screw rod, the piston rod end of the first cutting cylinder is installed with a second cutting cylinder, the second cutting cylinder is arranged vertically upward, the piston rod end of the second cutting cylinder is installed with a fixed plate, the cutting processing mechanism is installed on one side of the bottom of the fixed plate, a first guide rail is installed on the top of the workbench and below the slide, a first slider is installed at the bottom of the slide, and the first slider is slidably connected to the top of the first guide rail.

The present invention is further configured as follows: the cutting mechanism includes a mounting seat installed on one side of the bottom of the fixed plate and a cutting motor horizontally installed on the mounting seat, the output end of the cutting motor is arranged toward the reciprocating screw rod, and a cutting head is installed at the output end of the cutting motor.

By adopting the above technical solution, the cutting drive mechanism is used to drive the cutting processing mechanism to move, causing the cutting processing mechanism to move to the outer wall of the raw material bar of the reciprocating screw rod, and then the auxiliary motor drives the second pneumatic chuck and the raw material bar of the reciprocating screw rod to rotate, and the cutting drive mechanism drives the cutting processing mechanism to move along the extension direction of the reciprocating screw rod raw material bar, thereby achieving the purpose of cutting the thread groove of the reciprocating screw rod raw material bar, and the cutting processing mechanism moves back and forth, thereby achieving the effect of cutting the reciprocating thread groove.

The present invention is further configured as follows: the dressing drive assembly includes a dressing electric slide rail installed on the top of the workbench and arranged along the extension direction of the reciprocating screw rod, the top of the dressing electric slide rail is slidably connected with a connecting seat, the top of the connecting seat is installed with a dressing cylinder arranged toward the reciprocating screw rod, the end of the piston rod of the dressing cylinder is installed with a vertically arranged lifting cylinder, the end of the piston rod of the lifting cylinder is installed with a base plate, the base is installed on one side of the bottom of the base plate, a second guide rail is installed on the top of the workbench and at the bottom of the connecting seat, a second slider is installed at the bottom of the connecting seat, and the second slider is slidably connected to the top of the second guide rail.

The present invention is further configured as follows: the processing mechanism also includes four L-shaped plates arranged on the side of the mounting plate away from the connecting rod, each of the L-shaped plates is hinged at one end away from the mounting plate to two second hinged rods, and the two second hinged rods are hingedly installed with a hinged table at one end away from the L-shaped plate, and a driving motor is installed on the side wall of the hinged table, the output end of the driving motor is arranged toward the reciprocating screw rod, and the output end of the driving motor is connected to a cutting wheel.

A third hinged rod is hinged to the middle part of one of the second hinged rods, an end of the third hinged rod away from the second hinged rod is hinged to the first hinged rod, an end of the first hinged rod away from the third hinged rod passes through the mounting plate, a processing drive cylinder is installed in the middle part of one side of the mounting plate close to the connecting rod, the piston rod of the processing drive cylinder is arranged away from the mounting plate, the piston rod of the processing drive cylinder is connected to a disc, and the four first hinged rods are all arranged on the outer wall of the disc.

The present invention is further configured as follows: the outer side wall of the disc is equidistantly connected to two fixed blocks, the outer side wall of the disc is provided with two arc grooves between the two fixed blocks, the interiors of the two arc grooves are slidably connected to sliding blocks, the four first hinged rods are hingedly connected to the two arc grooves and the two sliding blocks respectively, and one sliding block and one fixed block form a group, telescopic cylinders are hingedly installed on the side walls of the two sliding blocks, and the piston rod ends of the telescopic cylinders are hingedly connected to the side walls of the fixed blocks corresponding to the sliding blocks.

By adopting the above technical solution, when the grinding assembly trims the thread groove of the reciprocating screw, the four cutting wheels in the processing mechanism fit with the four extension grooves at the staggered positions of the thread groove, and at the same time, the driving motor drives the cutting wheel to rotate, causing the cutting wheel to trim the corresponding extension groove, thereby increasing the range of edge grinding.

By setting up a processing mechanism, when the grinding assembly trims the thread groove of the reciprocating screw, the four cutting wheels in the processing mechanism fit with the four extension grooves at the staggered positions of the thread groove, and at the same time, the driving motor drives the cutting wheel to rotate, causing the cutting wheel to trim the corresponding extension groove, thereby increasing the range of edge grinding, and by controlling the extension and contraction of the telescopic cylinder, causing the corresponding sliding block to slide inside the corresponding arc groove, thereby changing the spacing between the same group of sliding blocks and fixed blocks, adjusting the position of the cutting wheel corresponding to the sliding block and the fixed block, thereby being compatible with the trimming of different reciprocating screws.

The present invention is further configured as follows: the grinding assembly also includes a V-shaped plate rotatably connected to the side wall of the supporting plate, one end of the V-shaped plate is rotatably connected to an adjusting wheel, the outer side wall of the adjusting wheel fits against the side wall of the grinding belt, a tension spring is connected between the other end of the V-shaped plate and the side wall of the supporting plate, a limit block is installed on the side wall of the supporting plate, a spring is installed on the side wall of the limit block, one end of the spring away from the limit block is connected to the adjusting plate, and the side of the adjusting plate away from the spring is inserted between the two driven wheels and fits against the side wall of the grinding belt.

By adopting the above technical solution, the grinding belt is supported by the V-shaped plate and the adjusting wheel during the transmission process, and when the tightness of the grinding belt changes, the grinding belt will squeeze the adjusting wheel, and the adjusting wheel drives the V-shaped plate to swing on the side wall of the bearing plate. At the same time, the tension spring is pulled or squeezed, and the tension spring uses its own elastic force to offset the swinging force of the V-shaped plate and drives the V-shaped plate to swing in the opposite direction, so that the adjusting wheel can always fit the inner wall of the grinding belt, thereby adjusting the tightness of the grinding belt.

The limit block and the spring also cooperate to adjust the tightness of the grinding belt. When the two driven wheels are in contact with the staggered position of the thread groove, since the side wall of the reciprocating screw is an arc-shaped structure, the outer wall of the reciprocating screw is in the position between the driven wheels, which will squeeze the grinding belt and insert it between the two driven wheels. At this time, the adjustment plate and the spring support the grinding belt in reverse, so that the grinding belt can always remain in contact with the staggered position of the thread groove on the reciprocating screw.

A method for machining a reciprocating screw rod using a machine tool, using the above-mentioned machine tool machining device for the production of a reciprocating screw rod, comprising the following steps:

S1. The staff places the raw material bar to be processed into the reciprocating screw between the positioning component and the auxiliary component for processing.

S2. When the reciprocating screw is ready for cutting, the raw material bar of the reciprocating screw is first clamped and rotated by the auxiliary component, while the positioning component does not contact the raw material bar. At the same time, the position of the cutting mechanism is adjusted by the cutting drive mechanism, so that the processing end of the cutting mechanism contacts the side wall of the raw material bar for processing, and the extension direction of the raw material bar of the cutting mechanism moves back and forth, and finally a reciprocating thread groove is cut on the outer wall of the reciprocating screw of the raw material bar. After the cutting mechanism cuts the raw material bar into a reciprocating screw, it is reset and away from the reciprocating screw through the cutting drive mechanism.

S3. The reciprocating screw is then prepared for secondary trimming operations. At this time, the positioning component clamps the reciprocating screw, and the auxiliary component releases the clamping. Then the trimming drive component drives the trimming processing component as a whole to approach the outer wall of the reciprocating screw. The reciprocating thread grooves on the outer wall of the reciprocating screw are staggered in two directions, and after the reciprocating screw is staggered with the thread grooves in two directions, a plurality of staggered diamond-shaped protrusions are formed on the outer wall of the reciprocating screw. When the processing mechanism in the trimming processing component approaches the reciprocating screw, the grinding drive cylinder pushes the bearing plate toward the reciprocating screw, and the grinding belt between the two driven wheels penetrates into the thread groove of the outer wall of the reciprocating screw, and is specifically fitted at the staggered position of the thread groove. At this time, the driving wheel drives the grinding belt to transmit, so that the grinding belt trims the edges and corners at the staggered position of the thread groove.

S4. The processing mechanism trims the four extended grooves at the staggered positions of the thread grooves. After the processing mechanism and the grinding assembly complete one trimming, the positioning assembly drives the reciprocating screw to rotate 180° clockwise, so that the staggered positions of the thread grooves adjacent to the outer wall of the reciprocating screw face the trimming assembly and the grinding assembly, and the trimming drive assembly drives the trimming assembly and the grinding assembly to move horizontally on the outside of the reciprocating screw by half the distance of the diamond protrusion. At this time, the trimming assembly and the grinding assembly perform trimming operations on the next untrimmed staggered position of the thread groove, and reciprocate in this way.

S5. After the reciprocating screw is repaired, the staff will remove the reciprocating screw from the positioning assembly and the auxiliary assembly and replace it with a new raw material bar.

In summary, the present application includes at least one of the following beneficial technical effects:

(1) By setting up a processing mechanism and a grinding component, when the auxiliary component clamps the reciprocating screw and the positioning component cancels the clamping, the cutting component can be used to perform a thread groove cutting operation on the reciprocating screw raw material bar; when the auxiliary component cancels the clamping of the reciprocating screw and the positioning component clamps the reciprocating screw, the trimming drive component, the trimming processing component and the grinding component can be used to perform a secondary thread groove processing operation on the reciprocating screw raw material bar after the thread groove is cut, thereby removing the edges and corners at the staggered positions of the thread groove without having to replace the position of the reciprocating screw raw material bar.

(2) By setting a grinding belt and a driven wheel, the rotation of the driving wheel drives the grinding belt to transmit on the outer walls of the driving wheel and the two driven wheels, and the grinding belt contacts the staggered position of the thread groove at the same time, thereby achieving the purpose of trimming the edges and corners of the staggered position of the thread groove. After the trimming of a staggered position of a thread groove on the outer wall of the reciprocating screw is completed, the reciprocating screw rotates 180° in the opposite direction, and the trimming drive assembly drives the grinding assembly to move along the extension direction of the reciprocating screw by half the distance of the diamond-shaped protrusion, so that the grinding assembly is adjusted to the next staggered position of the thread groove for trimming. After trimming, the rotating cylinder rotates 180° in the forward direction, and the grinding assembly moves and trims again, thereby achieving the purpose of trimming the edges and corners of the staggered position of the thread groove.

(3) By setting up a processing mechanism, when the grinding assembly trims the thread groove of the reciprocating screw, the four cutting wheels in the processing mechanism fit with the four extension grooves at the staggered positions of the thread groove, and at the same time, the driving motor drives the cutting wheel to rotate, causing the cutting wheel to trim the corresponding extension groove, thereby increasing the range of edge grinding.

(4) By setting a telescopic cylinder and controlling the telescopic cylinder to extend and retract, the corresponding sliding block slides inside the corresponding arc groove, thereby changing the distance between the same group of sliding blocks and fixed blocks, adjusting the position of the cutting wheel corresponding to the sliding block and the fixed block, and thus being compatible with the trimming of different reciprocating screws.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of a machine tool processing device for producing a reciprocating screw rod according to the present invention.

FIG. 2 is a schematic diagram of the connection structure of the positioning assembly, the auxiliary assembly and the reciprocating screw rod in the present invention.

FIG. 3 is a schematic diagram of the structure of the cutting assembly in the present invention.

FIG. 4 is a schematic diagram of the connection structure between the trimming drive assembly and the trimming processing assembly in the present invention.

FIG. 5 is a schematic diagram of the structure of the trimming and processing assembly in the present invention.

FIG. 6 is a schematic diagram of the connection structure between the processing mechanism and the grinding assembly in the present invention.

FIG. 7 is a schematic side view of the structure of FIG. 6 .

FIG8 is a schematic diagram of the structure of the grinding assembly in the present invention.

FIG. 9 is a schematic diagram of the processing mechanism in the present invention in an open state.

FIG. 10 is a schematic diagram of the contracted state of the processing mechanism in the present invention.

FIG. 11 is a schematic diagram of the angle state of the processing mechanism after the telescopic cylinder is extended in the present invention.

FIG. 12 is a schematic diagram of the angle state of the processing mechanism after the telescopic cylinder is retracted in the present invention.

Description of the accompanying drawings: 1. workbench;

2. Positioning assembly; 21. Support plate; 22. Rotating cylinder; 23. First pneumatic chuck;

3. Auxiliary components; 31. Vertical plate; 32. Auxiliary motor; 33. Second pneumatic chuck;

4. Cutting assembly; 41. Cutting drive mechanism; 411. Cutting electric slide rail; 412. Slide table; 413. First cutting cylinder; 414. Second cutting cylinder; 415. Fixed plate; 416. First guide rail; 417. First slide block;

42. Cutting mechanism; 421. Mounting seat; 422. Cutting motor; 423. Cutting head;

5. Dressing drive assembly; 51. Dressing electric slide rail; 52. Connecting seat; 53. Dressing cylinder; 54. Lifting cylinder; 55. Base plate; 56. Second guide rail; 57. Second slide block;

6. Dressing and processing components; 61. Base; 62. Dressing and processing motor;

63, processing mechanism; 631, connecting frame; 632, connecting rod; 633, mounting plate; 634, L-shaped plate; 635, first hinge rod; 636, second hinge rod; 637, third hinge rod; 638, hinge table; 639, driving motor; 6301, cutting wheel; 6302, processing driving cylinder; 6303, disc; 6304, sliding block; 6305, fixing block; 6306, arc groove; 6307, telescopic cylinder;

7. Grinding assembly; 71. Grinding drive cylinder; 72. Loading plate; 73. Driving wheel; 74. Driven wheel; 75. Grinding belt; 76. V-shaped plate; 77. Adjusting wheel; 78. Tension spring; 79. Adjusting plate; 701. Spring;

8. Reciprocating screw.

DETAILED DESCRIPTION

It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

Please refer to Figures 1-12, the present invention provides the following technical solutions:

Embodiment 1, referring to FIG1, a machine tool processing device for reciprocating screw production includes a workbench 1 and a positioning assembly 2 and an auxiliary assembly 3 installed on the top of the workbench 1, a reciprocating screw 8 is horizontally arranged between the positioning assembly 2 and the auxiliary assembly 3, the positioning assembly 2 and the auxiliary assembly 3 are used to horizontally clamp the reciprocating screw 8, and the reciprocating screw 8 is driven to rotate by the positioning assembly 2 or the auxiliary assembly 3 during the processing, so as to adjust the angle of the reciprocating screw 8, and the specific structure of the positioning assembly 2 is as follows:

In this embodiment, referring to Figures 1 and 2, the positioning assembly 2 includes a support plate 21 installed on one side of the top of the workbench 1 and a rotating cylinder 22 installed on the side wall of the support plate 21. A first pneumatic chuck 23 is installed at the output end of the rotating cylinder 22, and the reciprocating screw 8 is inserted into the first pneumatic chuck 23. The support plate 21 is used to support the rotating cylinder 22, and the first pneumatic chuck 23 clamps the chuck by driving the piston in the cylinder through compressed air. When the reciprocating screw 8 needs to be clamped, the staff inserts one end of the reciprocating screw 8 between multiple chucks on the first pneumatic chuck 23, and uses multiple chucks to horizontally clamp and position the reciprocating screw 8. After the reciprocating screw 8 is clamped, the first pneumatic chuck 23 and the reciprocating screw 8 are driven to rotate by the rotating cylinder 22, so that the reciprocating screw 8 can rotate within a range of 180°, thereby adjusting the angle of the reciprocating screw 8.

The specific structure of auxiliary component 3 is as follows:

In this embodiment, referring to Figures 1 and 2, the auxiliary component 3 includes a vertical plate 31 installed on the top of the workbench 1 and located at the other end of the reciprocating screw 8 away from the positioning component 2, and an auxiliary motor 32 is installed on the side of the vertical plate 31 close to the reciprocating screw 8. A second pneumatic chuck 33 is installed on the output end of the auxiliary motor 32 facing the end of the reciprocating screw 8, and the end of the reciprocating screw 8 away from the positioning component 2 is inserted into the interior of the second pneumatic chuck 33. The function of the second pneumatic chuck 33 is the same as that of the first pneumatic chuck 23, that is, it is used to clamp the reciprocating screw 8, and the auxiliary motor 32 is used to drive the second pneumatic chuck 33 to rotate, thereby facilitating the rotation of the reciprocating screw 8, and then adjusting the angle of the reciprocating screw 8.

Referring to Figures 1 and 3, a cutting assembly 4 is provided on the top of the workbench 1 and on one side of the outer wall of the reciprocating screw 8. When the second pneumatic chuck 33 of the auxiliary assembly 3 clamps the reciprocating screw 8, the first pneumatic chuck 23 of the positioning assembly 2 is separated from the raw material bar of the reciprocating screw 8, and the auxiliary motor 32 drives the second pneumatic chuck 33 and the raw material bar of the reciprocating screw 8 to rotate. At this time, the positioning assembly 2 plays a limiting role on the reciprocating screw 8. In this state, the cutting assembly 4 is used to perform a cutting operation on the reciprocating screw 8, so that the raw material bar of the reciprocating screw 8 can form a bidirectional reciprocating thread groove. The specific structure of the cutting assembly 4 is as follows:

Referring to Figure 3, the cutting assembly 4 includes a cutting drive mechanism 41 and a cutting processing mechanism 42. The cutting drive mechanism 41 is connected to the workbench 1, and the cutting processing mechanism 42 is installed on the side wall of the cutting drive mechanism 41, and the cutting drive mechanism 41 is horizontally arranged toward the reciprocating screw 8. The cutting drive mechanism 41 is used to drive the cutting processing mechanism 42 to move, so that the cutting processing mechanism 42 moves to the outer wall of the raw material bar of the reciprocating screw 8, and then the auxiliary motor 32 drives the second pneumatic chuck 33 and the raw material bar of the reciprocating screw 8 to rotate, and the cutting drive mechanism 41 drives the cutting processing mechanism 42 to move along the extension direction of the raw material bar of the reciprocating screw 8, so as to achieve the purpose of cutting the thread groove of the raw material bar of the reciprocating screw 8, and the cutting processing mechanism 42 moves back and forth, thereby achieving the effect of cutting the reciprocating thread groove.

The specific structure of the cutting drive mechanism 41 is as follows:

In this embodiment, referring to FIG. 3 , the cutting drive mechanism 41 includes a cutting electric slide rail 411 installed on the top of the workbench 1. The cutting electric slide rail 411 is arranged parallel to the extension direction of the reciprocating screw 8. The cutting electric slide rail 411 can be a stepper motor linear slide rail screw slide seat module. The stepper motor drives the screw to rotate, causing the slide seat connected to the screw thread to move horizontally. The top of the cutting electric slide rail 411 is slidably connected to a slide table 412. The slide table 412 is connected to the slide seat on the cutting electric slide rail 411. When the slide seat on the cutting electric slide rail 411 moves, the slide table 412 is driven synchronously. In addition, a first guide rail 416 is installed on the top of the workbench 1 and below the slide 412, and a first slider 417 is installed at the bottom of the slide 412. The first slider 417 is slidably connected to the top of the first guide rail 416. When the slide 412 is displaced, the first slider 417 is driven to move on the first guide rail 416. The first slider 417 and the first guide rail 416 cooperate to provide auxiliary support and guidance for the slide 412. A first cutting cylinder 413 is installed on the top of the slide 412. The first cutting cylinder 413 is arranged toward the reciprocating screw rod 8. The first cutting cylinder 413 A second cutting cylinder 414 is installed at the end of the piston rod of the second cutting cylinder 414, and the second cutting cylinder 414 is vertically arranged upward. A fixing plate 415 is installed at the end of the piston rod of the second cutting cylinder 414. The cutting mechanism 42 is installed on the bottom side of the fixing plate 415. When the slide 412 moves, it drives the first cutting cylinder 413, the second cutting cylinder 414 and the fixing plate 415 to move synchronously, so that the cutting mechanism 42 can move along the extension direction of the reciprocating screw rod 8. In addition, the cutting mechanism 42 can cut and form a thread groove on the outer wall of the raw material bar of the reciprocating screw rod 8, and the slide 412 When moving back and forth, the cutting processing mechanism 42 can cut and form a reciprocating thread groove on the outer wall of the reciprocating screw rod 8 raw material bar. When cutting reciprocating screw rod 8 raw material bars of different diameters, the second cutting cylinder 414 drives the fixed plate 415 and the cutting processing mechanism 42 to adjust the height up and down, and the first cutting cylinder 413 drives the second cutting cylinder 414, the fixed plate 415 and the cutting processing mechanism 42 to approach or move away from the outer wall of the reciprocating screw rod 8 raw material bar, so that the cutting processing mechanism 42 can adjust the position and cutting depth according to the different diameters of the reciprocating screw rod 8 raw material bars.

In this embodiment, referring to Figure 3, the cutting processing mechanism 42 includes a mounting seat 421 installed on one side of the bottom of the fixed plate 415 and a cutting processing motor 422 horizontally installed on the mounting seat 421. The output end of the cutting processing motor 422 is arranged toward the reciprocating screw rod 8. The output end of the cutting processing motor 422 is installed with a cutting head 423. The cutting processing motor 422 is used to drive the cutting head 423 to rotate, and adjust the position through the cutting drive mechanism 41, so as to achieve the purpose of cutting the reciprocating thread groove.

Embodiment 2: Since the reciprocating screw needs to be processed by multiple sets of machine tools and needs to be positioned repeatedly, the operation is not only cumbersome, but also affects the accuracy of the secondary processing of the reciprocating screw. In addition, the existing finishing method is the same as milling. A bulge on the inner edge of the reverse thread groove will still appear where the forward thread groove is cut off, and there are still edges and corners at the intersection of the thread grooves in the two directions. The staff still needs to deal with it later, which greatly reduces the functionality of the existing lathe.

Referring to Fig. 1 and Fig. 4, for this purpose, the staff sets a trimming drive assembly 5 on the top of the workbench 1 and on the side of the outer wall of the reciprocating screw 8 away from the cutting assembly 4. The trimming drive assembly 5 is provided with a trimming processing assembly 6 on the side facing the reciprocating screw 8. The trimming processing assembly 6 is installed with a grinding assembly 7. When the auxiliary assembly 3 clamps the reciprocating screw 8 and the positioning assembly 2 cancels the clamping, the cutting assembly 4 can be used to perform the thread groove cutting operation on the raw material bar of the reciprocating screw 8. When the auxiliary assembly 3 cancels the clamping of the reciprocating screw 8 and the positioning assembly 2 clamps the reciprocating screw 8, the trimming drive assembly 5, the trimming processing assembly 6 and the grinding assembly 7 can cooperate to perform the thread groove secondary processing operation on the raw material bar of the reciprocating screw 8 after the thread groove is cut, and the edges and corners at the staggered positions of the thread groove are removed without re-changing the position of the raw material bar of the reciprocating screw 8. The specific structure of the trimming drive assembly 5 is as follows:

In this embodiment, referring to FIG4 , the trimming drive assembly 5 includes a trimming electric slide rail 51 installed on the top of the workbench 1 and arranged along the extension direction of the reciprocating screw 8. The top of the trimming electric slide rail 51 is slidably connected with a connecting seat 52. The trimming electric slide rail 51 has the same structure as the cutting electric slide rail 411, that is, the trimming electric slide rail 51 can be a stepper motor linear slide rail screw slide seat module. The stepper motor drives the screw to rotate, causing the slide seat threadedly connected to the screw to move horizontally. The slide seat of the trimming electric slide rail 51 is connected to the connecting seat 52. When the trimming electric slide rail 51 drives the corresponding slide seat to move, the connecting seat 52 moves synchronously with it. The top of the connecting seat 52 is installed A trimming cylinder 53 is provided toward the reciprocating screw rod 8, a vertically arranged lifting cylinder 54 is installed at the end of the piston rod of the trimming cylinder 53, a base plate 55 is installed at the end of the piston rod of the lifting cylinder 54, a trimming processing assembly 6 is installed on one side of the bottom of the base plate 55, a second guide rail 56 is installed at the top of the workbench 1 and at the bottom of the connecting seat 52, a second slider 57 is installed at the bottom of the connecting seat 52, the second slider 57 is slidably connected to the top of the second guide rail 56, when the connecting seat 52 is displaced, it drives the second slider 57 to move on the second guide rail 56, the second slider 57 and the second guide rail 56 cooperate to provide auxiliary support and guidance for the connecting seat 52.

In addition, when the thread groove on the outer wall of the reciprocating screw 8 needs secondary processing, the trimming cylinder 53 pushes the lifting cylinder 54, the base plate 55 and the trimming component 6 to move toward the direction of the reciprocating screw 8, thereby adjusting the distance between the trimming component 6 and the reciprocating screw 8, and the lifting cylinder 54 pushes the base plate 55 and the trimming component 6 to adjust the height in the vertical direction, so that the trimming component 6 can adjust the position according to the different diameters of the reciprocating screw 8 and adjust the depth of the secondary processing according to the depth of the thread groove on the outer wall of the reciprocating screw 8.

The specific structure of the finishing component 6 is as follows:

Referring to FIGS. 1 , 5 and 6 , the trimming assembly 6 includes a base 61 connected to the substrate 55 and a trimming motor 62 installed at the bottom of the base 61 . The trimming motor 62 is arranged toward the reciprocating screw 8 . A processing mechanism 63 is installed at the output end of the trimming motor 62 . The trimming motor 62 is used to drive the processing mechanism 63 to rotate, so that the processing mechanism 63 can adjust the angle following the pitch of the reciprocating screw 8 . The specific structure of the processing mechanism 63 is as follows:

Referring to FIGS. 6-7 and 9-12, the processing mechanism 63 includes a connecting frame 631 connected to the output end of the dressing motor 62 and a connecting rod 632 equidistantly installed on the side of the connecting frame 631 away from the dressing motor 62. The end of the connecting rod 632 away from the connecting frame 631 is connected to a mounting plate 633. The connecting frame 631, the connecting rod 632 and the mounting plate 633 cooperate to form a processing bracket. The grinding assembly 7 is installed at the center of a side of the mounting plate 633 away from the connecting rod 632. That is, the processing bracket is used to support and connect the grinding assembly 7. When the dressing motor 62 is driven to rotate, the processing bracket and the grinding assembly 7 rotate synchronously, thereby adjusting the grinding angle of the grinding assembly 7. The specific structure of the grinding assembly 7 is as follows:

6-8, the grinding assembly 7 includes a grinding drive cylinder 71 connected to the mounting plate 633, the piston rod of the grinding drive cylinder 71 is arranged away from the mounting plate 633, the piston rod of the mounting plate 633 is connected to the supporting plate 72, one side of the supporting plate 72 is rotatably connected to a driving wheel 73 and two driven wheels 74, the two driven wheels 74 are arranged at a position on the side wall of the supporting plate 72 away from the grinding drive cylinder 71, and the two driven wheels 74 are stacked in the vertical direction, the outer side walls of the driving wheel 73 and the two driven wheels 74 are transmission-connected with a grinding belt 75, the grinding belt 75 is located between the two driven wheels 74, is vertically arranged and arranged toward the reciprocating screw 8, through the above arrangement, the grinding drive cylinder 71 is used to drive the supporting plate 72 and multiple components installed on the supporting plate 72 to move synchronously, so that the grinding assembly 7 can adjust its position according to the different diameters of the reciprocating screw 8.

When the grinding drive cylinder 71 pushes the grinding assembly 7 as a whole toward the direction of the reciprocating screw 8, the reciprocating screw 8 adjusts its angle within a range of 180° through the cooperation of the rotating cylinder 22 of the positioning assembly 2 and the first pneumatic chuck 23, so that the staggered positions of the reciprocating thread grooves in two directions on the outer wall of the reciprocating screw 8 are arranged relative to the grinding assembly 7, and then the two driven wheels 74 are fitted at the staggered positions of the thread grooves, and the grinding belt 75 is fitted to the outer wall of the staggered positions of the thread grooves, and a grinding motor is installed on the side of the carrier plate 72 facing away from the driving wheel 73, and the output end of the grinding motor is connected to the driving wheel 73, and the grinding motor drives the driving wheel 73 to rotate, so that the grinding belt 75 is transmitted on the two driven wheels 74 and the outer wall of the driving wheel 73, and the grinding belt 75 is 5 and the staggered position of the thread groove are contacted at the same time, so as to achieve the purpose of trimming the edges and corners of the staggered position of the thread groove. After the trimming of a staggered position of the thread groove on the outer wall of the reciprocating screw 8 is completed, the reciprocating screw 8 is driven by the rotating cylinder 22 and the first pneumatic chuck 23 to rotate 180° in the opposite direction. At the same time, the trimming drive component 5 drives the grinding component 7 to move along the extension direction of the reciprocating screw 8, and the moving direction is the distance of half of the diamond-shaped protrusion on the outer wall of the reciprocating screw 8, so that the grinding component 7 is adjusted to the next staggered position of the thread groove for trimming. After trimming, the rotating cylinder 22 rotates 180° in the forward direction, and the grinding component 7 moves again and trims through the above process, so as to reciprocate, thereby realizing the cutting and trimming operation without replacing the reciprocating screw 8.

8 , the grinding assembly 7 further comprises a V-shaped plate 76 rotatably connected to the side wall of the carrier plate 72, one end of the V-shaped plate 76 is rotatably connected to an adjusting wheel 77, the outer side wall of the adjusting wheel 77 is in contact with the side wall of the grinding belt 75, and a tension spring 78 is connected between the other end of the V-shaped plate 76 and the side wall of the carrier plate 72, and the grinding belt 75 is supported by the V-shaped plate 76 and the adjusting wheel 77 during the transmission process, and when the tightness of the grinding belt 75 changes, the grinding belt 75 will squeeze the adjusting wheel 77, and the adjusting wheel 77 will drive the V-shaped plate 76 to swing on the side wall of the carrier plate 72, and at the same time, the tension spring 78 is pulled or squeezed, and the tension spring 78 uses its own elastic force to offset the swinging force of the V-shaped plate 76, and drives the V-shaped plate 76 to swing in the opposite direction, so that the adjusting wheel 77 can always be aligned with the grinding belt 75. The inner wall of the bearing plate 72 is fitted with a limit block, and a spring 701 is installed on the side wall of the limit block. The end of the spring 701 away from the limit block is connected to an adjusting plate 79, and the side of the adjusting plate 79 away from the spring 701 is inserted between the two driven wheels 74 and fits with the side wall of the grinding belt 75. The limit block and the spring 701 also cooperate to adjust the tightness of the grinding belt 75. When the two driven wheels 74 are fitted at the staggered position of the thread grooves, since the side wall of the reciprocating screw rod 8 is an arc-shaped structure, the outer wall of the reciprocating screw rod 8 and the position between the driven wheels 74 will squeeze the grinding belt 75 and be inserted between the two driven wheels 74. At this time, the adjusting plate 79 and the spring 701 support the grinding belt 75 in the opposite direction, so that the grinding belt 75 can always maintain a fit state with the staggered position of the thread grooves on the reciprocating screw rod 8.

Embodiment 3, referring to FIGS. 6-7, 9-12, due to the influence of the pitch on the staggered positions of the thread grooves in two directions, longer edges and corners appear, and the grinding range of the grinding assembly 7 cannot be reached, resulting in the problem of incomplete grinding of the edges and corners. For this reason, the processing mechanism 63 also includes four L-shaped plates 634 arranged on the side of the mounting plate 633 away from the connecting rod 632, and each L-shaped plate 634 is hinged at one end away from the mounting plate 633 to two second hinged rods 636, and the two second hinged rods 636 are hinged at one end away from the L-shaped plate 634 to install a hinge The connecting platform 638 and the side wall of the articulated platform 638 are installed with a driving motor 639, and the output end of the driving motor 639 is arranged toward the reciprocating screw rod 8, and the output end of the driving motor 639 is connected to the cutting wheel 6301. When the grinding assembly 7 trims the thread groove of the reciprocating screw rod 8, the four cutting wheels 6301 in the processing mechanism 63 fit with the four extension grooves at the staggered positions of the thread groove, and at the same time, the driving motor 639 drives the cutting wheel 6301 to rotate, so that the cutting wheel 6301 trims the corresponding extension groove, thereby increasing the range of edge grinding.

Referring to Figures 9 to 12, a third hinged rod 637 is hinged to the middle part of one of the second hinged rods 636, and the first hinged rod 635 is hinged to the end of the third hinged rod 637 away from the second hinged rod 636. The end of the first hinged rod 635 away from the third hinged rod 637 passes through the mounting plate 633, and a processing drive cylinder 6302 is installed in the middle part of one side of the mounting plate 633 close to the connecting rod 632. The piston rod of the processing drive cylinder 6302 is arranged away from the mounting plate 633, and the piston rod of the processing drive cylinder 6302 is connected to the disc 6303. The four first hinged rods 635 are all arranged on the outer wall of the disc 6303.

In this embodiment, referring to Figures 9 to 12, two fixed blocks 6305 are equidistantly connected to the outer wall of the disk 6303, and two arc grooves 6306 are provided on the outer wall of the disk 6303 and located between the two fixed blocks 6305. The interiors of the two arc grooves 6306 are slidably connected with sliding blocks 6304. The four first hinged rods 635 are respectively hinged to the two arc grooves 6306 and the two sliding blocks 6304. The processing driving cylinder 6302 is used to push the disk 6303, the two fixed blocks 6305 and the sliding block 6304 to move synchronously. The two fixed blocks 6305 and the sliding block 6304 will pull or push one end of the corresponding third hinged rod 637 to move during the movement. The second hinge rod 636 corresponding to the hinge rod 637 is hinged to the corresponding L-shaped plate 634, and the angle of the L-shaped plate 634 does not change. Therefore, when the third hinge rod 637 swings, the other end of the third hinge rod 637 pushes the second hinge rod 636 to swing on the corresponding L-shaped plate 634, thereby adjusting the angle of the second hinge rod 636. When the second hinge rod 636 swings, it drives the hinge table 638, the drive motor 639 and the cutting wheel 6301 to swing synchronously, thereby adjusting the cutting position of the cutting wheel 6301. Since there are four extension grooves at the staggered positions of the thread grooves, the above adjustment causes the cutting wheel 6301 to move from the position of the grinding component 7 to the corresponding extension groove, thereby increasing the trimming range of the edges and corners.

Referring to FIGS. 9 to 12 , a sliding block 6304 and a fixed block 6305 form a group. Telescopic cylinders 6307 are hingedly mounted on the side walls of the two sliding blocks 6304. The piston rod ends of the telescopic cylinders 6307 are hingedly mounted on the side walls of the fixed blocks 6305 corresponding to the sliding blocks 6304. Due to the different pitches of the reciprocating screws 8, in order to be compatible with the trimming of the reciprocating screws 8 with different pitches, the telescopic cylinders 6307 are controlled to be telescopic, so that the corresponding sliding blocks 6304 are moved in the corresponding arcs. The groove 6306 slides internally, thereby changing the spacing between the same group of sliding blocks 6304 and fixed blocks 6305, and then adjusting the positions of the cutting wheels 6301 corresponding to the sliding blocks 6304 and fixed blocks 6305, that is, the two cutting wheels 6301 at the top adjust the spacing according to the pitch size and in the above manner, and similarly, the two cutting wheels 6301 at the bottom also adjust the spacing according to the pitch size and in the above manner, thereby making the processing mechanism 63 compatible with the trimming of reciprocating screws 8 with different pitches.

Embodiment 4, a method for machining a reciprocating screw rod using a machine tool, using the above-mentioned machine tool machining device for the production of a reciprocating screw rod, comprises the following steps:

S1. A worker places the raw material bar to be processed into the reciprocating screw rod 8 between the positioning component 2 and the auxiliary component 3 for processing.

S2. When the reciprocating screw 8 is ready for cutting, the auxiliary component 3 is first used to clamp and rotate the raw material bar of the reciprocating screw 8, while the positioning component 2 is not in contact with the raw material bar. At the same time, the cutting drive mechanism 41 is used to adjust the position of the cutting mechanism 42, so that the processing end of the cutting mechanism 42 contacts the side wall of the raw material bar for processing, and the cutting mechanism 42 moves back and forth in the extension direction of the raw material bar, and finally a reciprocating thread groove is cut on the outer wall of the raw material bar reciprocating screw 8. After the cutting mechanism 42 cuts the raw material bar into the reciprocating screw 8, it is reset and away from the reciprocating screw 8 through the cutting drive mechanism 41.

More specific steps are: S21, the staff inserts one end of the reciprocating screw rod 8 raw material bar between the multiple chucks on the first pneumatic chuck 23, and inserts the other end between the multiple chucks of the second pneumatic chuck 33. When the reciprocating screw rod 8 raw material bar needs to be cut, the second pneumatic chuck 33 clamps the reciprocating screw rod 8, and the first pneumatic chuck 23 remains stationary.

S22, the auxiliary motor 32 drives the second pneumatic chuck 33 to rotate, and then drives the reciprocating screw 8 raw material bar to rotate, and drives the fixing plate 415 and the cutting processing mechanism 42 to adjust the height up and down through the second cutting cylinder 414, and drives the second cutting cylinder 414, the fixing plate 415 and the cutting processing mechanism 42 to approach the outer wall of the reciprocating screw 8 raw material bar through the first cutting cylinder 413, and the cutting head 423 moves to the place where the outer wall of the reciprocating screw 8 raw material bar is in contact, and the cutting processing motor 422 drives the cutting head 423 to rotate to cut the reciprocating screw 8 raw material bar.

S23, then the cutting electric slide rail 411 drives the slide table 412 to slide along the extension direction of the reciprocating screw 8, and when the slide table 412 moves, it drives the first cutting cylinder 413, the second cutting cylinder 414 and the fixed plate 415 to move synchronously, so that the cutting head 423 can move along the extension direction of the reciprocating screw 8 and cut the outer wall of the raw material bar of the reciprocating screw 8 to form a thread groove, and when the slide table 412 moves back and forth, the thread groove cut by the cutting head 423 is a reciprocating thread groove.

S3. Then the reciprocating screw 8 is prepared for secondary trimming. At this time, the positioning component 2 clamps the reciprocating screw 8, and the auxiliary component 3 releases the clamping. Then the trimming drive component 5 drives the trimming processing component 6 as a whole to approach the outer wall of the reciprocating screw 8. The reciprocating thread grooves on the outer wall of the reciprocating screw 8 are staggered in two directions, and after the reciprocating screw 8 is staggered by the thread grooves in two directions, a plurality of staggered diamond-shaped protrusions are formed on the outer wall of the reciprocating screw 8. When the processing mechanism 63 in the trimming processing component 6 approaches the reciprocating screw 8, the grinding drive cylinder 71 pushes the bearing plate 72 to approach the reciprocating screw 8, and the grinding belt 75 between the two driven wheels 74 penetrates into the thread groove of the outer wall of the reciprocating screw 8, and is specifically fitted at the staggered position of the thread groove. At this time, the driving wheel 73 drives the grinding belt 75 to transmit, so that the grinding belt 75 trims the edges and corners at the staggered position of the thread groove.

More specific steps are:

S31, after the reciprocating thread groove on the reciprocating screw 8 is processed, the cutting head 423 is away from the reciprocating screw 8, and the first pneumatic chuck 23 clamps the reciprocating screw 8, and the second pneumatic chuck 33 cancels the clamping, and the reciprocating screw 8 is clamped and positioned horizontally.

S32, after the reciprocating screw 8 is clamped, the first pneumatic chuck 23 and the reciprocating screw 8 are driven to rotate by the rotating cylinder 22, so that the reciprocating screw 8 can rotate within a range of 180 degrees, thereby adjusting the angle of the reciprocating screw 8.

S32. Then, the trimming electric slide rail 51 drives the corresponding slide to move, and the connecting seat 52 follows to move synchronously. The connecting seat 52 drives various components installed on the top of it to move synchronously, causing the trimming processing component 6 and the grinding component 7 to move to the staggered position of the thread grooves in two directions outside the reciprocating screw 8, and the trimming cylinder 53 pushes the lifting cylinder 54, the base plate 55 and the trimming processing component 6 to move in the direction of the reciprocating screw 8, thereby adjusting the distance between the trimming processing component 6 and the reciprocating screw 8, and the lifting cylinder 54 pushes the base plate 55 and the trimming processing component 6 to adjust the height in the vertical direction.

S33, after the position adjustment of the finishing component 6 and the grinding component 7 is completed, the grinding drive cylinder 71 pushes the grinding component 7 as a whole toward the direction of the reciprocating screw 8. At this time, the reciprocating screw 8 is adjusted in an angle within a range of 180° through the cooperation of the rotating cylinder 22 of the positioning component 2 and the first pneumatic chuck 23, so that the reciprocating thread grooves in two directions on the outer wall of the reciprocating screw 8 are staggered and arranged relative to the grinding component 7.

S34, then the two driven wheels 74 are fitted at the staggered positions of the thread grooves, and the grinding belt 75 is fitted at the outer wall of the staggered positions of the thread grooves. When the driving wheel 73 rotates, it drives the grinding belt 75 to transmit on the outer walls of the driving wheel 73 and the two driven wheels 74, and the grinding belt 75 is in contact with the staggered positions of the thread grooves at the same time, thereby achieving the purpose of trimming the edges and corners of the staggered positions of the thread grooves.

S4, and the processing mechanism 63 trims the four extended grooves at the staggered position of the thread groove. After the processing mechanism 63 and the grinding assembly 7 complete one trimming, the positioning assembly 2 drives the reciprocating screw 8 to rotate 180° clockwise, so that the staggered position of the thread groove adjacent to the outer wall of the reciprocating screw 8 faces the trimming assembly 6 and the grinding assembly 7, and the trimming drive assembly 5 drives the trimming assembly 6 and the grinding assembly 7 to move horizontally on the outside of the reciprocating screw 8 by half the distance of the diamond protrusion. At this time, the trimming assembly 6 and the grinding assembly 7 perform trimming operations on the next untrimmed staggered position of the thread groove, and reciprocate in this way.

More specific steps are:

S41. When the grinding assembly 7 trims the thread groove of the reciprocating screw 8, the four cutting wheels 6301 in the processing mechanism 63 fit with the four extension grooves at the staggered positions of the thread groove, and at the same time, the driving motor 639 drives the cutting wheel 6301 to rotate, causing the cutting wheel 6301 to trim the corresponding extension groove.

S42. After the trimming of a staggered position of a thread groove on the outer wall of the reciprocating screw 8 is completed, the reciprocating screw 8 is driven by the rotating cylinder 22 and the first pneumatic chuck 23 to rotate 180° in the opposite direction. At the same time, the trimming drive assembly 5 drives the grinding assembly 7 to move along the extension direction of the reciprocating screw 8, and the moving direction is the distance of half of the diamond-shaped protrusion on the outer wall of the reciprocating screw 8, so that the grinding assembly 7 is adjusted to the next staggered position of the thread groove for trimming. After trimming, the rotating cylinder 22 rotates forward 180°, and the grinding assembly 7 moves again and is trimmed through the above process, reciprocating in this way.

S5. After the reciprocating screw 8 is repaired, the staff removes the reciprocating screw 8 from the positioning assembly 2 and the auxiliary assembly 3 and replaces it with a new raw material bar.

Obviously, the embodiments described above are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

Claims (8)

1. A machine tool processing device for producing a reciprocating screw, characterized in that it comprises a workbench (1) and a positioning assembly (2) and an auxiliary assembly (3) mounted on the top of the workbench (1), a reciprocating screw (8) being horizontally arranged between the positioning assembly (2) and the auxiliary assembly (3), and a cutting assembly (4) and a dressing drive assembly (5) being respectively arranged on the top of the workbench (1) and on both sides of the outer side wall of the reciprocating screw (8); The cutting assembly (4) comprises a cutting drive mechanism (41) and a cutting processing mechanism (42), wherein the cutting drive mechanism (41) is connected to the workbench (1), the cutting processing mechanism (42) is mounted on a side wall of the cutting drive mechanism (41), and the cutting drive mechanism (41) is arranged horizontally toward the reciprocating screw rod (8); A dressing component (6) is arranged on the side of the dressing drive component (5) facing the reciprocating screw rod (8), the dressing component (6) comprising a base (61) connected to the dressing drive component (5) and a dressing motor (62) mounted on the bottom of the base (61), the dressing motor (62) being arranged facing the reciprocating screw rod (8), and a processing mechanism (63) being mounted on the output end of the dressing motor (62); The processing mechanism (63) comprises a connecting frame (631) connected to the output end of the dressing motor (62) and a connecting rod (632) equidistantly mounted on a side of the connecting frame (631) away from the dressing motor (62); an end of the connecting rod (632) away from the connecting frame (631) is connected to a mounting plate (633); and a grinding assembly (7) is mounted at the center of a circle on a side of the mounting plate (633) away from the connecting rod (632); The grinding assembly (7) comprises a grinding drive cylinder (71) connected to a mounting plate (633); a piston rod of the grinding drive cylinder (71) is arranged away from the mounting plate (633); the piston rod of the mounting plate (633) is connected to a bearing plate (72); one side of the bearing plate (72) is rotatably connected to a driving wheel (73) and two driven wheels (74); the two driven wheels (74) are arranged at a position of a side wall of the bearing plate (72) away from the grinding drive cylinder (71); and the two driven wheels (74) are stacked in a vertical direction; the outer side walls of the driving wheel (73) and the two driven wheels (74) are transmission-connected to a grinding belt (75); the grinding belt (75) is located between the two driven wheels (74), is vertically arranged, and is arranged toward the reciprocating screw rod (8); The processing mechanism (63) further comprises four L-shaped plates (634) arranged on a side of the mounting plate (633) away from the connecting rod (632), one end of each of the L-shaped plates (634) away from the mounting plate (633) being hingedly connected to two second hinged rods (636), one end of the two second hinged rods (636) away from the L-shaped plate (634) being hingedly mounted with a hinged platform (638), a side wall of the hinged platform (638) being mounted with a driving motor (639), an output end of the driving motor (639) being arranged toward the reciprocating screw rod (8), and a cutting wheel (6301) being connected to the output end of the driving motor (639); A third hinged rod (637) is hingedly connected to the middle of one of the second hinged rods (636); an end of the third hinged rod (637) away from the second hinged rod (636) is hingedly connected to the first hinged rod (635); an end of the first hinged rod (635) away from the third hinged rod (637) passes through the mounting plate (633); a processing drive cylinder (6302) is installed in the middle of one side of the mounting plate (633) close to the connecting rod (632); a piston rod of the processing drive cylinder (6302) is arranged away from the mounting plate (633); the piston rod of the processing drive cylinder (6302) is connected to a disc (6303); and the four first hinged rods (635) are all arranged at the outer wall of the disc (6303); Two fixed blocks (6305) are equidistantly connected to the outer wall of the disk (6303); two arc-shaped grooves (6306) are provided on the outer wall of the disk (6303) and are located between the two fixed blocks (6305); the interiors of the two arc-shaped grooves (6306) are slidably connected with sliding blocks (6304); the four first hinged rods (635) are respectively hingedly connected to the two arc-shaped grooves (6306) and the two sliding blocks (6304); one sliding block (6304) and one fixed block (6305) form a group; telescopic cylinders (6307) are hingedly installed on the side walls of the two sliding blocks (6304); the piston rod ends of the telescopic cylinders (6307) are hingedly connected to the side walls of the fixed blocks (6305) corresponding to the sliding blocks (6304). 2. A machine tool processing device for reciprocating screw production according to claim 1, characterized in that: the positioning component (2) includes a support plate (21) installed on one side of the top of the workbench (1) and a rotating cylinder (22) installed on the side wall of the support plate (21), and a first pneumatic chuck (23) is installed at the output end of the rotating cylinder (22), and the reciprocating screw (8) is inserted into the inside of the first pneumatic chuck (23). 3. A machine tool processing device for reciprocating screw production according to claim 1, characterized in that: the auxiliary component (3) includes a vertical plate (31) installed on the top of the workbench (1) and located at the other end of the reciprocating screw (8) away from the positioning component (2), an auxiliary motor (32) is installed on the side of the vertical plate (31) close to the reciprocating screw (8), and a second pneumatic chuck (33) is installed at the output end of the auxiliary motor (32) facing the end of the reciprocating screw (8), and the end of the reciprocating screw (8) away from the positioning component (2) is inserted into the interior of the second pneumatic chuck (33). 4. A machine tool processing device for producing a reciprocating screw rod according to claim 1, characterized in that: the cutting drive mechanism (41) comprises a cutting electric slide rail (411) installed on the top of the workbench (1), the cutting electric slide rail (411) is arranged parallel to the extension direction of the reciprocating screw rod (8), the top of the cutting electric slide rail (411) is slidably connected to a slide table (412), the top of the slide table (412) is installed with a first cutting cylinder (413), the first cutting cylinder (413) is arranged toward the reciprocating screw rod (8), and the first cutting cylinder (413) is arranged to move toward the reciprocating screw rod (8). 13) is provided with a second cutting cylinder (414) at the end of the piston rod, the second cutting cylinder (414) is arranged vertically upward, a fixing plate (415) is provided at the end of the piston rod of the second cutting cylinder (414), the cutting mechanism (42) is provided on one side of the bottom of the fixing plate (415), a first guide rail (416) is provided on the top of the workbench (1) and below the slide (412), a first slider (417) is provided at the bottom of the slide (412), and the first slider (417) is slidably connected to the top of the first guide rail (416). 5. A machine tool processing device for reciprocating screw production according to claim 4, characterized in that: the cutting processing mechanism (42) includes a mounting seat (421) installed on one side of the bottom of the fixed plate (415) and a cutting processing motor (422) horizontally installed on the mounting seat (421), the output end of the cutting processing motor (422) is arranged toward the reciprocating screw (8), and the output end of the cutting processing motor (422) is installed with a cutting head (423). 6. A machine tool processing device for reciprocating screw production according to claim 1, characterized in that: the dressing drive assembly (5) includes a dressing electric slide rail (51) installed on the top of the workbench (1) and arranged along the extension direction of the reciprocating screw (8), the top of the dressing electric slide rail (51) is slidably connected with a connecting seat (52), the top of the connecting seat (52) is installed with a dressing cylinder (53) arranged toward the reciprocating screw (8), the piston rod end of the dressing cylinder (53) is installed with a vertically arranged lifting cylinder (54), the piston rod end of the lifting cylinder (54) is installed with a base plate (55), the base (61) is installed on one side of the bottom of the base plate (55), the top of the workbench (1) and located at the bottom of the connecting seat (52) is installed with a second guide rail (56), the bottom of the connecting seat (52) is installed with a second slider (57), and the second slider (57) is slidably connected to the top of the second guide rail (56). 7. A machine tool processing device for reciprocating screw production according to claim 1, characterized in that: the grinding assembly (7) also includes a V-shaped plate (76) rotatably connected to the side wall of the bearing plate (72), one end of the V-shaped plate (76) is rotatably connected to an adjusting wheel (77), the outer side wall of the adjusting wheel (77) is in contact with the side wall of the grinding belt (75), a tension spring (78) is connected between the other end of the V-shaped plate (76) and the side wall of the bearing plate (72), a limit block is installed on the side wall of the bearing plate (72), a spring (701) is installed on the side wall of the limit block, and the end of the spring (701) away from the limit block is connected to an adjusting plate (79), and the side of the adjusting plate (79) away from the spring (701) is inserted between the two driven wheels (74) and in contact with the side wall of the grinding belt (75). 8. A method for machining a reciprocating screw rod using a machine tool, using the machine tool machining device for the reciprocating screw rod according to any one of claims 1 to 7, characterized in that it comprises the following steps: S1. A worker places a raw material bar to be processed into a reciprocating screw rod (8) between the positioning component (2) and the auxiliary component (3) to prepare for processing; S2, when the reciprocating screw rod (8) is ready for cutting, the auxiliary component (3) is first used to clamp and rotate the raw material bar of the reciprocating screw rod (8), while the positioning component (2) and the raw material bar are not in contact. At the same time, the position of the cutting mechanism (42) is adjusted by the cutting drive mechanism (41), so that the processing end of the cutting mechanism (42) contacts the side wall of the raw material bar for processing, and the cutting mechanism (42) moves back and forth in the extension direction of the raw material bar, and finally a reciprocating thread groove is cut on the outer wall of the reciprocating screw rod (8) of the raw material bar. After the cutting mechanism (42) cuts the raw material bar into the reciprocating screw rod (8), it is reset and away from the reciprocating screw rod (8) through the cutting drive mechanism (41); S3, the reciprocating screw (8) is then prepared for a secondary trimming operation. At this time, the positioning component (2) clamps the reciprocating screw (8), and the auxiliary component (3) releases the clamping. Then, the trimming drive component (5) drives the trimming processing component (6) as a whole to approach the outer wall of the reciprocating screw (8). The reciprocating thread grooves on the outer wall of the reciprocating screw (8) are staggered in two directions, and the reciprocating screw (8) is staggered in two directions. After the thread grooves are staggered, a plurality of staggered grooves are formed on the outer wall of the reciprocating screw (8). When the processing mechanism (63) in the trimming and processing assembly (6) approaches the reciprocating screw (8), the trimming driving cylinder (71) pushes the bearing plate (72) to approach the reciprocating screw (8), and the trimming belt (75) between the two driven wheels (74) penetrates into the thread groove of the outer wall of the reciprocating screw (8) and fits specifically at the staggered position of the thread groove. At this time, the driving wheel (73) drives the trimming belt (75) to transmit, so that the trimming belt (75) trims the edges and corners at the staggered position of the thread groove. S4, and the processing mechanism (63) trims the four extended grooves at the staggered position of the thread groove. After the processing mechanism (63) and the grinding assembly (7) complete one trimming, the positioning assembly (2) drives the reciprocating screw (8) to rotate 180 degrees clockwise, so that the staggered position of the thread groove adjacent to the outer wall of the reciprocating screw (8) faces the trimming assembly (6) and the grinding assembly (7), and the trimming drive assembly (5) drives the trimming assembly (6) and the grinding assembly (7) to move horizontally outside the reciprocating screw (8) by half the distance of the diamond-shaped protrusion. At this time, the trimming assembly (6) and the grinding assembly (7) perform a trimming operation with the next staggered position of the thread groove that has not been trimmed, and reciprocate in this way; S5. After the reciprocating screw rod (8) is repaired, the staff removes the reciprocating screw rod (8) from the positioning assembly (2) and the auxiliary assembly (3) and replaces it with a new raw material bar.