Screw rod and nut machining system based on double-spindle wafer scribing machine

Abstract

The invention discloses a lead screw and nut machining system based on a double-spindle wafer scribing machine, and relates to the technical field of lead screw and nut machining. A grinding control mechanism is installed on the inner side of a positioning mechanism, a lead screw and nut assembly is installed on the inner side of the positioning mechanism in a clamping mode, the lead screw and nut assembly is sleeved with the grinding control mechanism in a sliding mode, and a walking gear is used for controlling synchronous rotation of a pre-grinding female sleeve; a reciprocating motion ring coaxial with the walking gear is installed on the side, away from the pre-grinding female sleeve, of the walking gear, an outer grinding part is fixedly installed on the side, close to the walking gear, of the reciprocating motion ring, the walking gear is matched with the fixed tooth holder in position, and the moving direction of the fixed tooth holder is perpendicular to the rolling direction of the walking gear. The pre-grinding rod is sleeved with the pre-grinding female sleeve, the coaxiality between the pre-grinding rod and the pre-grinding female sleeve in the grinding machining process can be effectively guaranteed, and the grinding machining precision of the whole lead screw and nut assembly is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of screw rod and nut processing, and in particular relates to a screw rod and nut processing system based on a dual-spindle wafer dicing machine. Background Art

[0002] The lead screw nut, also known as the ball screw, is the most commonly used transmission element in tool machinery and precision machinery. Its main function is to convert rotational motion into linear motion or torque into axial repetitive force. It also has the characteristics of high precision, reversibility and high efficiency. Due to its very small friction resistance, the ball screw is widely used in dual-spindle wafer dicing machines.

[0003] In the prior art, the screw nut is mainly composed of a screw and a nut. A number of balls are loaded between the groove on the screw and the groove on the inner wall of the nut. The ball bearings are used to reduce the resistance to the rotational motion of the nut. Grinding equipment is required in the production process of the screw nut.

[0004] The traditional method of grinding ball screws is to grind the internal thread of the ball screw with a separate internal thread grinder, and then switch to an external cylindrical grinder to continue grinding the outer diameter and end face of the ball screw. This grinding control method requires two grinding devices to complete the complete processing of the ball screw, which not only reduces the processing efficiency of the ball screw, but also cannot guarantee the coaxiality of the screw and the nut during the grinding process, which easily causes deviations in processing accuracy. To this end, we provide a screw and nut processing system based on a dual-spindle wafer dicing machine to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a screw nut processing system based on a dual-spindle wafer dicing machine, which solves the problems in the above-mentioned background technology through the specific structural design of the screw nut grinding structure, travel control mechanism, rotation switching mechanism and power control mechanism.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The present invention is a screw nut processing system based on a dual-spindle wafer dicing machine, comprising a screw nut grinding structure with horizontal reciprocating motion, a travel control mechanism being installed on one side of the screw nut grinding structure; wherein the screw nut grinding structure comprises a positioning mechanism, a grinding control mechanism being installed on the inner side of the positioning mechanism, a screw nut assembly being clamped and installed on the inner side of the positioning mechanism, the grinding control mechanism sliding sleeve being arranged on the screw nut assembly and the two are arranged coaxially, the positioning mechanism comprising a horizontally arranged inner grinding part; the screw nut assembly is composed of a pre-grinding rod and a pre-grinding nut sleeve, the pre-grinding nut sleeve sliding sleeve being arranged on the peripheral side of the pre-grinding rod.

[0008] The grinding control mechanism includes a traveling gear sleeved on the pre-grinding rod, the traveling gear is used to control the synchronous rotation of the pre-grinding nut sleeve, a reciprocating ring coaxial with the traveling gear is installed on the side of the traveling gear away from the pre-grinding nut sleeve, the reciprocating ring rotates synchronously with the traveling gear and the two move axially synchronously, and an outer grinding part is fixedly installed on the side of the reciprocating ring close to the traveling gear; the traveling control mechanism includes a fixed tooth seat for horizontal reciprocating motion, the traveling gear is adapted to the position of the fixed tooth seat, the moving direction of the fixed tooth seat is perpendicular to the rolling direction of the traveling gear, while controlling the traveling gear to roll along the surface of the fixed tooth seat, the traveling gear moves axially, the axially moving traveling gear drives the fixed tooth seat to move synchronously, the outer grinding part moves along the circumference of the pre-grinding rod for grinding, and when the pre-grinding nut sleeve moves to be sleeved on the inner grinding part, the inner wall grinding is realized by the movement of the pre-grinding nut sleeve.

[0009] The present invention is further configured as follows: the positioning mechanism also includes a positioning mounting frame, a bidirectional screw is rotatably arranged inside the positioning mounting frame, a positioning control motor is fixedly mounted on one side of the positioning mounting frame, the output end of the positioning control motor is connected to the bidirectional screw, and two supporting bases are symmetrically fixedly arranged at the bottom of the positioning mounting frame; a limited position slide is provided at the top of the positioning mounting frame, and two first moving frames symmetrically arranged on the positioning mounting frame for sliding cooperation with the limited position slide, a horizontal extension frame is fixedly arranged on the top of the first moving frame close to the positioning control motor, a first positioning portion is fixedly arranged on the surface of the first moving frame close to the positioning control motor, and a second positioning portion is fixedly arranged on the surface of the first moving frame away from the positioning control motor, and the inner grinding portion is fixedly mounted on the peripheral side surface of the second positioning portion, and the first positioning portion and the second positioning portion are respectively pressed against the two end portions of the pre-grinding rod.

[0010] The present invention is further configured as follows: a grinding control screw is provided directly below the horizontal extension frame and is rotatably connected to the corresponding first movable frame; a second movable frame is horizontally slidably provided at the bottom of the horizontal extension frame; the reciprocating ring is rotatably installed in a mounting opening on the second movable frame; the traveling gear and the reciprocating ring are fixedly connected by a first linkage rod; a second linkage rod is fixedly provided on a side of the traveling gear away from the first linkage rod; the second linkage rod is horizontally plugged into the axial hole at the end of the pre-grinding female sleeve.

[0011] The present invention is further configured such that the second movable frame is sleeved on the grinding control screw and the two are threadedly matched, the grinding control screw is provided with an axially extending limit groove on the peripheral side surface, the grinding control screw is slidingly sleeved with a first transmission gear, the limit piece fixed on the inner wall of the first transmission gear is slidably matched inside the limit groove, and the reciprocating ring is fixedly provided with a second transmission gear meshing with the first transmission gear on the peripheral side surface; the second movable frame and the second linkage rod are both fixedly provided with a push sleeve, the push sleeve on the second movable frame is fitted with the first transmission gear, the push sleeve on the second linkage rod is fitted with the end of the pre-grinding female sleeve, the second linkage rod is threadedly matched with a reset nut on the peripheral side surface, and the reciprocating ring is connected to a side away from the second movable frame through a plurality of radial rods with a baffle ring for limiting the first transmission gear.

[0012] The present invention is further configured as follows: the walking control mechanism also includes a walking control frame, the fixed tooth seat is horizontally slidably arranged on the walking control frame, a first ear seat is fixedly arranged on the top of the fixed tooth seat, a second ear seat fixedly arranged on the surface of the walking control frame is connected to the first ear seat by a first elastic member, a moving seat is slidingly arranged on the bottom of the fixed tooth seat, a third ear seat fixedly arranged on the bottom of the fixed tooth seat is connected to the moving seat by a second elastic member, a force-bearing moving plate is fixedly arranged on the surface of the moving seat, and a special-shaped sliding frame that fits with the force-bearing moving plate is fixedly arranged on the bottom of the second moving frame.

[0013] The present invention is further configured as follows: the present invention also includes a rotation switching mechanism; wherein, the rotation switching mechanism includes two symmetrically arranged support frames, a rotation mounting frame is rotatably arranged between the two support frames, the support base is fixedly mounted on the peripheral side surface of the rotation mounting frame, one side of one of the support frames is fixedly provided with a motor seat, a switching control motor is fixedly mounted on the surface of the motor seat, the output shaft of the switching control motor is connected to a third transmission gear, and the peripheral side surface of the rotation mounting frame is fixedly provided with an external gear ring meshing with the third transmission gear.

[0014] The present invention is further configured as follows: the present invention also includes a power control mechanism; wherein, the power control mechanism includes a first fixed frame and a second fixed frame arranged relatively to each other, two power control screws are symmetrically rotatably arranged between the first fixed frame and the second fixed frame, a transmission wheel is fixedly installed on the end of the power control screw close to the second fixed frame, the two transmission wheels are connected by a transmission belt, the output end of the power control motor fixedly installed on one side of the first fixed frame is connected to the corresponding power control screw, the support frame is sleeved on the corresponding power control screw and the two are threadedly matched, and the walking control frame is rotatably installed between the two power control screws.

[0015] The present invention has the following beneficial effects:

[0016] 1. In the process of controlling the traveling gear to roll along the top of the fixed gear seat, the reciprocating moving ring that rotates synchronously with the traveling gear drives the second transmission gear to rotate, and the first transmission gear is driven to rotate by the rotation of the second transmission gear, and the grinding control screw that rotates synchronously with the first transmission gear drives the second moving frame to move in the direction close to the inner grinding part. In this process, the first transmission gear is pushed to move synchronously by the pushing sleeve on the second moving frame to ensure that the first transmission gear is always in a meshing relationship with the second transmission gear, and the traveling gear is pushed to move in the direction close to the inner grinding part by the first linkage rod, and at the same time, the pre-grinding mother sleeve is pushed to move in the direction close to the inner grinding part by the pushing sleeve on the second linkage rod, thereby realizing the outer grinding part to move axially along the pre-grinding rod during the rotation process to complete the grinding process of the pre-grinding rod. Since the pre-grinding mother sleeve is sleeved on the pre-grinding rod, the coaxiality between the pre-grinding rod and the pre-grinding mother sleeve can be effectively guaranteed during the grinding process, so as to improve the grinding process accuracy of the entire screw rod and nut assembly.

[0017] 2. In the present invention, during the grinding process of the pre-grinding rod, the traveling gear rolling along the top of the fixed tooth seat drives the special-shaped push frame to move and gradually compresses the second elastic member. At the same time, the special-shaped push frame moving synchronously with the second moving frame pushes the fixed tooth seat to move, so as to ensure that the traveling gear can always roll along the top of the fixed tooth seat. When the outer grinding part completes the grinding of the pre-grinding rod, the pre-grinding sleeve abuts against the end of the inner grinding part. As the traveling gear continues to roll along the top of the fixed tooth seat, the pre-grinding sleeve rotates and moves axially at the same time, thereby realizing the grinding of the inner wall of the pre-grinding sleeve through the inner grinding part, thereby greatly improving the efficiency of the ball screw grinding.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0020] Figure 1 The present invention is a structural schematic diagram of a screw rod and nut processing system based on a dual-spindle wafer dicing machine.

[0021] Figure 2 for Figure 1 Side view of the structure.

[0022] Figure 3It is a diagram showing the coordination relationship between the screw rod and nut grinding structure and the travel control mechanism in the present invention.

[0023] Figure 4 It is a structural schematic diagram of the power control mechanism in the present invention.

[0024] Figure 5 It is a diagram showing the matching relationship between the screw rod and nut grinding structure and the rotation switching mechanism in the present invention.

[0025] Figure 6 for Figure 5 Side view of the structure.

[0026] Figure 7 It is a structural schematic diagram of the walking control mechanism in the present invention.

[0027] Figure 8 It is a schematic diagram of the structure of the rotary switching mechanism in the invention.

[0028] Fig. 9 It is a structural schematic diagram of the screw rod and nut grinding structure in the present invention.

[0029] Fig.10 It is a schematic structural diagram of the screw rod and nut assembly in the present invention.

[0030] Fig.11 It is a structural schematic diagram of the positioning mechanism in the present invention.

[0031] Fig.12 It is a structural schematic diagram of the grinding control mechanism in the present invention.

[0032] Fig.13 for Fig.12 Schematic diagram of the structure from another angle.

[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0034] 1-screw nut grinding structure, 2-travel control mechanism, 201-fixed gear seat, 202-travel control frame, 203-first elastic member, 204-moving seat, 205-second elastic member, 206-force moving plate, 3-positioning mechanism, 301-inner grinding part, 302-positioning mounting frame, 303-bidirectional screw, 304-positioning control motor, 305-support base, 306-limiting slide, 307-first moving frame, 308-horizontal extension frame, 309-first positioning part, 310-second positioning part, 4-grinding control mechanism, 401-travel gear, 402-reciprocating ring, 403-outer grinding part, 404-grinding control screw, 405-second moving frame, 406 -first linkage rod, 407-second linkage rod, 408-limiting groove, 409-first transmission gear, 410-second transmission gear, 411-pushing sleeve, 412-reset nut, 413-blocking ring, 414-special-shaped pushing frame, 5-screw nut assembly, 501-pre-grinding rod, 502-pre-grinding nut sleeve, 6-rotation switching mechanism, 601-support frame, 602-rotation mounting frame, 603-motor seat, 604-switching control motor, 605-third transmission gear, 606-external gear ring, 7-power control mechanism, 701-first fixed frame, 702-second fixed frame, 703-power control screw, 704-transmission wheel, 705-transmission belt, 706-power control motor. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] For specific embodiment 1, please refer to Figure 1-13 The present invention is a screw nut processing system based on a dual-spindle wafer dicing machine, comprising a screw nut grinding structure 1 that reciprocates horizontally, and a travel control mechanism 2 is installed on one side of the screw nut grinding structure 1; wherein the screw nut grinding structure 1 comprises a positioning mechanism 3, a grinding control mechanism 4 is installed on the inner side of the positioning mechanism 3, a screw nut assembly 5 is clamped and installed on the inner side of the positioning mechanism 3, the grinding control mechanism 4 is slidably sleeved on the screw nut assembly 5 and the two are coaxially arranged, and the positioning mechanism 3 comprises a horizontally arranged inner grinding part 301; the screw nut assembly 5 is composed of a pre-grinding rod 501 and a pre-grinding nut sleeve 502, and the pre-grinding nut sleeve 502 is slidably sleeved on the peripheral side of the pre-grinding rod 501;

[0037] The grinding control mechanism 4 includes a traveling gear 401 sleeved on the pre-grinding rod 501, the traveling gear 401 is used to control the synchronous rotation of the pre-grinding female sleeve 502, a reciprocating ring 402 coaxial with the traveling gear 401 is installed on the side away from the pre-grinding female sleeve 502, the reciprocating ring 402 rotates synchronously with the traveling gear 401 and the two move axially synchronously, and an outer grinding part 403 is fixedly installed on the side of the reciprocating ring 402 close to the traveling gear 401;

[0038] The travel control mechanism 2 includes a fixed tooth seat 201 that reciprocates horizontally, and the travel gear 401 is matched with the fixed tooth seat 201 in position. The moving direction of the fixed tooth seat 201 is perpendicular to the rolling direction of the travel gear 401. While controlling the travel gear 401 to roll along the surface of the fixed tooth seat 201, the travel gear 401 moves axially. The axially moving travel gear 401 drives the fixed tooth seat 201 to move synchronously. The outer grinding part 403 moves along the circumference of the pre-grinding rod 501 for grinding. When the pre-grinding sleeve 502 moves to be sleeved on the inner grinding part 301, the inner wall grinding is achieved through the movement of the pre-grinding sleeve 502.

[0039] In this embodiment of the present invention, the positioning mechanism 3 also includes a positioning mounting frame 302, a bidirectional screw 303 is rotatably arranged inside the positioning mounting frame 302, a positioning control motor 304 is fixedly installed on one side of the positioning mounting frame 302, the output end of the positioning control motor 304 is connected to the bidirectional screw 303, and two supporting bases 305 are symmetrically fixedly arranged at the bottom of the positioning mounting frame 302; a limited position slide 306 is provided on the top of the positioning mounting frame 302, and two first moving frames 307 that slide and cooperate with the limited position slide 306 are symmetrically arranged on the positioning mounting frame 302, a horizontal extension frame 308 is fixedly arranged on the top of the first moving frame 307 close to the positioning control motor 304, and a first positioning portion 309 is fixedly arranged on the surface of the first moving frame 307 close to the positioning control motor 304, away from A second positioning portion 310 is fixedly provided on the surface of the first movable frame 307 of the positioning control motor 304, and the inner grinding portion 301 is fixedly installed on the peripheral side of the second positioning portion 310, and the first positioning portion 309 and the second positioning portion 310 are respectively pressed against the two ends of the pre-grinding rod 501; a screw nut assembly 5 is placed between the first positioning portion 309 and the second positioning portion 310, and then the positioning control motor 304 is started to drive the bidirectional screw 303 to rotate, so that the relatively arranged first positioning portion 309 and the second positioning portion 310 are close to each other, until the first positioning portion 309 and the second positioning portion 310 are respectively pressed against the two ends of the pre-grinding rod 501, at which time the screw nut assembly 5 is tightly clamped and fixed between the first positioning portion 309 and the second positioning portion 310.

[0040] In this embodiment of the present invention, a grinding control screw 404 rotatably connected to the corresponding first moving frame 307 is arranged directly below the horizontal extension frame 308, a second moving frame 405 is horizontally slidably arranged at the bottom of the horizontal extension frame 308, a reciprocating ring 402 is rotatably installed in a mounting opening on the second moving frame 405, a travel gear 401 and a reciprocating ring 402 are fixedly connected by a first linkage rod 406, a second linkage rod 407 is fixedly arranged on the side of the travel gear 401 away from the first linkage rod 406, and the second linkage rod 407 is horizontally plugged into the end of the pre-grinding female sleeve 502. In the axial hole, through this structural design, in the process of controlling the traveling gear 401 to roll along the top of the fixed gear seat 201, the reciprocating ring 402 is driven by the first linkage rod 406 to rotate synchronously with the traveling gear 401, and at the same time, the pre-grinding female sleeve 502 is driven by the second linkage rod 407 to rotate synchronously with the traveling gear 401, thereby ensuring the synchronous rotation among the reciprocating ring 402, the traveling gear 401 and the pre-grinding female sleeve 502, and during the rotation of the reciprocating ring 402, the outer grinding part 403 is driven to rotate and move along the circumference of the pre-grinding rod 501 (rotating and moving axially at the same time).

[0041] In this embodiment of the present invention, the second moving frame 405 is sleeved on the grinding control screw 404 and the two are threadedly matched. The grinding control screw 404 is provided with an axially extending limit groove 408 on the side surface. The grinding control screw 404 is slidably sleeved with a first transmission gear 409. The limit piece fixed on the inner wall of the first transmission gear 409 is slidably matched inside the limit groove 408. The side surface of the reciprocating ring 402 is fixedly provided with a second transmission gear 410 meshing with the first transmission gear 409; the second moving frame 405 and the second linkage rod 407 are both fixedly provided with a push rod. The push sleeve 411 on the second moving frame 405 fits with the first transmission gear 409, the push sleeve 411 on the second linkage rod 407 fits with the end of the pre-ground female sleeve 502, the second linkage rod 407 is threaded with a reset nut 412, and the side of the reciprocating ring 402 away from the second moving frame 405 is connected to a baffle ring 413 for limiting the first transmission gear 409 through a plurality of radial rods; in the process of controlling the running gear 401 to roll along the top of the fixed gear seat 201, the reciprocating ring 402 rotates synchronously with the running gear 401 The second transmission gear 410 is driven to rotate, and the rotation of the second transmission gear 410 drives the first transmission gear 409 to rotate. The grinding control screw 404 that rotates synchronously with the first transmission gear 409 drives the second moving frame 405 to move toward the inner grinding part 301. In this process, the first transmission gear 409 is pushed to move synchronously by the push sleeve 411 on the second moving frame 405 to ensure that the first transmission gear 409 is always in a meshing relationship with the second transmission gear 410, and the travel gear 401 is pushed toward the inner grinding part 301 through the first linkage rod 406. The outer grinding portion 403 moves in the direction of the inner grinding portion 301, and at the same time, the pre-grinding female sleeve 502 is pushed to move towards the inner grinding portion 301 through the pushing sleeve 411 on the second linkage rod 407, thereby realizing the axial movement of the outer grinding portion 403 along the pre-grinding rod 501 during the rotation to complete the grinding process of the pre-grinding rod 501. Since the pre-grinding female sleeve 502 is sleeved on the pre-grinding rod 501, the coaxiality between the pre-grinding rod 501 and the pre-grinding female sleeve 502 can be effectively guaranteed during the grinding process, so as to improve the grinding accuracy of the entire screw and nut assembly 5.

[0042] In this embodiment of the present invention, the walking control mechanism 2 also includes a walking control frame 202, a fixed gear seat 201 is horizontally slidably arranged on the walking control frame 202, a first ear seat is fixedly arranged on the top of the fixed gear seat 201, a second ear seat fixedly arranged on the surface of the walking control frame 202 is connected to the first ear seat by a first elastic member 203, a moving seat 204 is slidably arranged at the bottom of the fixed gear seat 201, a third ear seat fixedly arranged at the bottom of the fixed gear seat 201 is connected to the moving seat 204 by a second elastic member 205, and a surface of the moving seat 204 is fixedly arranged. A force-bearing moving plate 206 is fixedly provided, and a special-shaped push frame 414 that fits with the force-bearing moving plate 206 is fixedly provided at the bottom of the second moving frame 405; during the grinding process of the pre-grinding rod 501, the traveling gear 401 rolling along the top of the fixed gear seat 201 drives the special-shaped push frame 414 to move and gradually compress the second elastic member 205. At the same time, the special-shaped push frame 414 that moves synchronously with the second moving frame 405 pushes the fixed gear seat 201 to move and compress the first elastic member 203, so as to ensure that the traveling gear 401 can always It rolls along the top of the fixed gear seat 201. When the outer grinding part 403 completes the grinding of the pre-grinding rod 501, the pre-grinding sleeve 502 abuts against the end of the inner grinding part 301. As the traveling gear 401 continues to roll along the top of the fixed gear seat 201, the pre-grinding sleeve 502 rotates and moves axially at the same time, thereby achieving the grinding of the inner wall of the pre-grinding sleeve 502 through the inner grinding part 301. After the grinding of the inner wall of the pre-grinding sleeve 502 is completed, the traveling gear 401 is controlled to continue to roll along the fixed gear seat The top of 201 rolls in the opposite direction, so that the grinding control screw 404 rotating in the opposite direction drives the second movable frame 405 to move in the opposite direction (i.e., move in the direction close to the first positioning portion 309), until the traveling gear 401 and the second movable frame 405 return to the initial position, at which time the outer grinding portion 403 also returns to the initial position (i.e., the outer grinding portion 403 just detaches from the pre-grinding rod 501 that has completed the grinding), and the first elastic member 203 and the second elastic member 205 both return to their natural state, and at this time the screw rod and nut grinding structure 1 that has completed the grinding process returns to the initial position.

[0043] Specific embodiment 2, on the basis of specific embodiment 1, the present invention also includes a rotation switching mechanism 6; wherein the rotation switching mechanism 6 includes two symmetrically arranged support frames 601, a rotation mounting frame 602 is rotatably arranged between the two support frames 601, a support base 305 is fixedly mounted on the side surface of the rotation mounting frame 602, one side of one of the support frames 601 is fixedly arranged with a motor seat 603, a switching control motor 604 is fixedly mounted on the surface of the motor seat 603, an output shaft of the switching control motor 604 is connected with a third transmission gear 605, and an outer gear ring 606 meshing with the third transmission gear 605 is fixedly arranged on the side surface of the rotation mounting frame 602; after completing the grinding process of the screw nut assembly 5 clamped and fixed by the screw nut grinding structure 1 directly above, the controller controls the switching control motor 604 to start and drive the third transmission gear 605 to rotate, and under the cooperation of the third transmission gear 605 and the outer gear ring 606, the rotation mounting frame 602 is driven to rotate counterclockwise by a certain angle (such as Figure 6 As shown in the figure, the next screw nut grinding structure 1 is rotated to the upper position, and the same method of controlling the forward and reverse rolling of the travel gear 401 is adopted to realize the grinding of the screw nut assembly 5 clamped and fixed by the screw nut grinding structure 1 at this position. Subsequently, the same method is adopted to successively realize the grinding of each screw nut assembly 5 arranged in the annular direction. After completing the grinding of each screw nut assembly 5 on the rotating mounting frame 602, the reset nut 412 at the upper position is removed, and then the positioning control motor 304 at the upper position is started to drive the bidirectional screw 303 to rotate in the opposite direction, so that the two relatively arranged screw nut assemblies 5 are The first movable frame 307 moves away from each other until the screw-nut assembly 5 that has completed the grinding process is removed from this position, and then the controller controls the switching control motor 604 to start and drive the third transmission gear 605 to rotate, so that the rotating mounting frame 602 rotates counterclockwise by a certain angle to rotate the next screw-nut assembly 5 that has completed the grinding process to the position directly above, and the screw-nut assembly 5 that has completed the grinding process at this position is removed according to the same control method as mentioned above, thereby realizing the removal of each screw-nut assembly 5 on the rotating mounting frame 602, and continuing to install a new screw-nut assembly 5 to be ground to continue the grinding process.

[0044] In this embodiment of the present invention, the present invention also includes a power control mechanism 7; wherein the power control mechanism 7 includes a first fixed frame 701 and a second fixed frame 702 that are relatively arranged (the first fixed frame 701 and the second fixed frame 702 are fixedly installed on an external frame), two power control screws 703 are symmetrically rotatably arranged between the first fixed frame 701 and the second fixed frame 702, a transmission wheel 704 is fixedly installed at the end of the power control screw 703 close to the second fixed frame 702, and the two transmission wheels 704 are connected by a transmission belt 705, the output end of the power control motor 706 fixedly installed on one side of the first fixed frame 701 is connected to the corresponding power control screw 703, the support frame 601 is sleeved on the corresponding power control screw 703 and the two are threadedly matched, and the walking control frame 202 is rotatably installed between the two power control screws 703; Figure 1 and Figure 4 As shown, when the power control motor 706 is started, the two power control screws 703 are caused to rotate synchronously under the joint action of the transmission belt 705 and the two transmission wheels 704. When the power control screw 703 is controlled to rotate forwardly, the entire rotation switching mechanism 6 can be controlled to move horizontally in the direction close to the first fixed frame 701. During this process, the traveling gear 401 can be driven to roll forward along the top of the fixed gear seat 201. After the grinding of the screw rod and nut assembly 5 at the specified position is completed, the power control motor 706 is used to control the two power control screws 703 to rotate in the opposite direction, thereby driving the entire rotation switching mechanism 6 to move horizontally in the direction away from the first fixed frame 701 until it returns to the initial position (at this time, the traveling gear 401 is separated from the fixed gear seat 201). During this process, the traveling gear 401 can be driven to roll in the opposite direction along the top of the fixed gear seat 201.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0046] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A screw rod and nut processing system based on a dual-spindle wafer dicing machine, characterized in that: It comprises a screw rod and nut grinding structure (1) capable of horizontal reciprocating motion, wherein a travel control mechanism (2) is installed on one side of the screw rod and nut grinding structure (1); The screw-nut grinding structure (1) comprises a positioning mechanism (3), a grinding control mechanism (4) is installed inside the positioning mechanism (3), a screw-nut assembly (5) is clamped and installed inside the positioning mechanism (3), the grinding control mechanism (4) is slidably sleeved on the screw-nut assembly (5) and the two are coaxially arranged, and the positioning mechanism (3) comprises a horizontally arranged inner grinding portion (301); The screw rod and nut assembly (5) is composed of a pre-ground rod (501) and a pre-ground female sleeve (502), wherein the pre-ground female sleeve (502) is slidably sleeved on the peripheral side of the pre-ground rod (501); The grinding control mechanism (4) comprises a traveling gear (401) sleeved on the pre-grinding rod (501), the traveling gear (401) being used to control the synchronous rotation of the pre-grinding female sleeve (502), a reciprocating ring (402) coaxial with the traveling gear (401) being installed on the side of the traveling gear (401) away from the pre-grinding female sleeve (502), the reciprocating ring (402) rotating synchronously with the traveling gear (401) and the two moving axially synchronously, and an outer grinding portion (403) being fixedly installed on the side of the reciprocating ring (402) close to the traveling gear (401); The travel control mechanism (2) comprises a fixed tooth seat (201) that reciprocates horizontally, the travel gear (401) and the fixed tooth seat (201) are matched in position, the moving direction of the fixed tooth seat (201) and the rolling direction of the travel gear (401) are perpendicular to each other, and the travel gear (401) moves axially while controlling the travel gear (401) to roll along the surface of the fixed tooth seat (201), the axially moving travel gear (401) drives the fixed tooth seat (201) to move synchronously, the outer grinding part (403) moves along the circumference of the pre-grinding rod (501) to perform grinding processing, and when the pre-grinding female sleeve (502) moves to be sleeved on the inner grinding part (301), the inner wall grinding processing is achieved through the movement of the pre-grinding female sleeve (502).

2. The screw rod and nut processing system based on a dual-spindle wafer dicing machine according to claim 1, characterized in that: The positioning mechanism (3) further comprises a positioning mounting frame (302), a bidirectional screw (303) being rotatably arranged inside the positioning mounting frame (302), a positioning control motor (304) being fixedly mounted on one side of the positioning mounting frame (302), an output end of the positioning control motor (304) being connected to the bidirectional screw (303), and two supporting bases (305) being symmetrically fixedly arranged at the bottom of the positioning mounting frame (302); A limiting slideway (306) is provided on the top of the positioning mounting frame (302); two first movable frames (307) slidably matched with the limiting slideway (306) are symmetrically arranged on the positioning mounting frame (302); a horizontal extension frame (308) is fixedly arranged on the top of the first movable frame (307) close to the positioning control motor (304); a first positioning portion (309) is fixedly arranged on the surface of the first movable frame (307) close to the positioning control motor (304); a second positioning portion (310) is fixedly arranged on the surface of the first movable frame (307) away from the positioning control motor (304); the inner grinding portion (301) is fixedly installed on the peripheral side surface of the second positioning portion (310); the first positioning portion (309) and the second positioning portion (310) are respectively pressed against the two end portions of the pre-grinding rod (501).

3. The screw rod and nut processing system based on a dual-spindle wafer dicing machine according to claim 2, characterized in that: A grinding control screw (404) is arranged directly below the horizontal extension frame (308) and is rotatably connected to the corresponding first movable frame (307). A second movable frame (405) is horizontally slidably arranged at the bottom of the horizontal extension frame (308). The reciprocating ring (402) is rotatably installed in a mounting opening on the second movable frame (405). The travel gear (401) and the reciprocating ring (402) are fixedly connected by a first linkage rod (406). A second linkage rod (407) is fixedly arranged on the side of the travel gear (401) away from the first linkage rod (406). The second linkage rod (407) is horizontally plugged into the axial hole at the end of the pre-grinding female sleeve (502).

4. The screw rod and nut processing system based on a dual-spindle wafer dicing machine according to claim 3, characterized in that: The second moving frame (405) is sleeved on the grinding control screw (404) and the two are threadedly matched, the grinding control screw (404) is provided with an axially extending limiting groove (408) on the peripheral side surface, the grinding control screw (404) is slidably sleeved with a first transmission gear (409), a limiting piece fixed on the inner wall of the first transmission gear (409) is slidably matched inside the limiting groove (408), and the reciprocating ring (402) is fixedly provided with a second transmission gear (410) meshing with the first transmission gear (409) on the peripheral side surface; The second movable frame (405) and the second linkage rod (407) are both fixedly provided with a push sleeve (411); the push sleeve (411) on the second movable frame (405) is fitted with the first transmission gear (409); the push sleeve (411) on the second linkage rod (407) is fitted with the end of the pre-ground female sleeve (502); a reset nut (412) is threadedly fitted on the peripheral side surface of the second linkage rod (407); and a baffle ring (413) for limiting the first transmission gear (409) is connected to the side of the reciprocating ring (402) away from the second movable frame (405) through a plurality of radial rods.

5. The screw rod and nut processing system based on a dual-spindle wafer dicing machine according to claim 4, characterized in that: The walking control mechanism (2) also includes a walking control frame (202), the fixed tooth seat (201) is horizontally slidably arranged on the walking control frame (202), a first ear seat is fixedly arranged on the top of the fixed tooth seat (201), a second ear seat fixedly arranged on the surface of the walking control frame (202) is connected to the first ear seat via a first elastic member (203), a moving seat (204) is slidably arranged at the bottom of the fixed tooth seat (201), a third ear seat fixedly arranged at the bottom of the fixed tooth seat (201) is connected to the moving seat (204) via a second elastic member (205), a force-bearing moving plate (206) is fixedly arranged on the surface of the moving seat (204), and a special-shaped push frame (414) that fits the force-bearing moving plate (206) is fixedly arranged at the bottom of the second moving frame (405).

6. The screw rod and nut processing system based on a dual-spindle wafer dicing machine according to claim 5, characterized in that: It also includes a rotation switching mechanism (6); wherein the rotation switching mechanism (6) includes two symmetrically arranged support frames (601), a rotation mounting frame (602) is rotatably arranged between the two support frames (601), the support base (305) is fixedly mounted on the peripheral side surface of the rotation mounting frame (602), a motor seat (603) is fixedly arranged on one side of one of the support frames (601), a switching control motor (604) is fixedly mounted on the surface of the motor seat (603), the output shaft of the switching control motor (604) is connected to a third transmission gear (605), and an outer gear ring (606) meshing with the third transmission gear (605) is fixedly arranged on the peripheral side surface of the rotation mounting frame (602).

7. The screw rod and nut processing system based on a dual-spindle wafer dicing machine according to claim 6, characterized in that: The invention also comprises a power control mechanism (7); wherein the power control mechanism (7) comprises a first fixed frame (701) and a second fixed frame (702) which are arranged opposite to each other; two power control screws (703) are symmetrically arranged for rotation between the first fixed frame (701) and the second fixed frame (702); a transmission wheel (704) is fixedly installed at the end of the power control screw (703) close to the second fixed frame (702); the two transmission wheels (704) are connected by a transmission belt (705); an output end of a power control motor (706) fixedly installed on one side of the first fixed frame (701) is connected to the corresponding power control screw (703); the support frame (601) is sleeved on the corresponding power control screw (703) and the two are threadedly matched; and the walking control frame (202) is rotatably installed between the two power control screws (703).

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