Substrate appearance primary processing equipment and rotary tool changing assembly

Abstract

The invention relates to the technical field of cutter changing devices of milling cutter equipment, in particular to substrate appearance primary machining equipment and a rotary cutter changing assembly. The automatic tool changing device comprises a control cabinet, a driving mechanism is arranged above the control cabinet, the automatic tool changing device further comprises a tool supply mechanism and a tool changing mechanism, and the tool supply mechanism is arranged on one side of the control cabinet. Multi-directional first-layer buffering is formed through the connecting rods and the offset springs, second-time buffering is formed on a first-layer force unloading buffering structure through the guide block frame and the positioning springs, and meanwhile third-time force unloading buffering is formed through the buffering soft cushion between the buffering head and the rotating transverse plate. The impact force generated when the cutter receiving ring frame rotates to approach and contact with the milling cutter main body is reduced, and the hard contact between the cutter receiving ring frame and the milling cutter main body is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of tool changing devices for milling cutter equipment, and in particular to a substrate shape preliminary processing device and a rotary tool changing assembly. Background Art

[0002] The initial processing of the substrate shape is generally carried out by a milling cutter.

[0003] Since there are many positions on the substrate that need to be processed, the milling cutter is prone to wear during the processing as it works for a long time. At this time, it is necessary to replace the new milling cutter to continue processing. At the same time, different types of milling cutters will be used when processing different grooves, and tool changing equipment is required.

[0004] At present, when replacing the milling cutter of primary processing equipment, most of them require the cooperation of the tool changing assembly and the processing equipment. After the milling cutter is loosened by the processing equipment, the tool changing assembly takes over the milling cutter and then replaces it with a new milling cutter and inserts it into the milling cutter placement point. The milling cutter is locked again by the processing equipment, so as to quickly complete the replacement of the milling cutter.

[0005] This tool changing method requires the tool changing assembly to accurately receive the fallen milling cutter and form a clamp on the outside of the milling cutter. In this process, an annular plate is mostly used to surround the outside of the milling cutter to complete the locking, so that when the processing equipment releases the milling cutter, the annular plate can receive the milling cutter in the first time. However, this type of annular plate receiving structure needs to be tightly clamped on the side of the milling cutter, so most of them will be hard squeezed on the outside of the side wall of the milling cutter through the annular plate. At this time, a lateral thrust will be generated on the milling cutter. When the processing equipment releases the milling cutter, the milling cutter will tilt. At the same time, if the annular plate is not given enough extrusion pressure, a gap will easily appear between the annular plate and the milling cutter, resulting in insufficient precision in the receiving and clamping of the milling cutter, which can easily cause the milling cutter to fall. Summary of the invention

[0006] The purpose of the present invention is to provide a substrate shape preliminary processing equipment and a rotary tool changing assembly to solve the problem that when the receiving structure is tightly clamped on the side of the milling cutter, it will be hard squeezed outside the side wall of the milling cutter, generating lateral squeezing force on the milling cutter, making it easy for the milling cutter to tilt when the processing equipment releases the milling cutter, and if the annular plate is not given enough squeezing pressure, a gap will easily be generated between the annular plate and the milling cutter, resulting in insufficient precision in the receiving and clamping of the milling cutter, affecting the receiving effect.

[0007] In order to achieve the above-mentioned purpose, the present invention provides a rotary tool changing assembly, which is used in conjunction with an inserting and positioning head and a milling cutter body. The tool changing assembly includes a tool supply mechanism and a tool changing mechanism, which are used in conjunction with an inserting and positioning head and a milling cutter body of a substrate shape preliminary processing device. The tool supply mechanism is arranged on one side of a control cabinet; The tool changing mechanism comprises a rotating transverse plate and a tool body receiving assembly, wherein the rotating transverse plate is arranged between the tool feeding mechanism and the milling cutter body; The knife body receiving assembly is arranged at both ends of the rotating horizontal plate, and the knife body receiving assembly includes a buffer head, a knife ring frame, an open locking assembly and a positioning buffer connecting piece. The buffer head is rotatably arranged at the end of the rotating horizontal plate, and a connected buffer pad is arranged between the buffer head and the end of the rotating horizontal plate. A concave slot is opened on one side wall of the buffer head, the knife ring frame is arranged in the concave slot, the open locking assembly is arranged at the opening edge of the knife ring frame, and the positioning buffer connecting piece is arranged between the knife ring frame and the buffer head.

[0008] As a further improvement of the technical solution, the outer wall of the milling cutter body is provided with a clamping ring, and the cutter ring frame cooperates with the clamping ring, so that the cutter ring frame can fit the clamping ring and be inserted to form a connection with the milling cutter body; Wherein, the knife ring frame is a U-shaped ring frame, and the opening locking components are grouped into two and are mirror-symmetrically arranged at the edges of both sides of the opening of the knife ring frame.

[0009] The open locking assembly comprises a positioning side block, an open rotating frame and a torsion spring, wherein the positioning side block is arranged outside the opening of the knife ring frame, and the open rotating frame is rotatably mounted on the positioning side block, and the open rotating frame parts of the two open locking assemblies are mirror-symmetrically distributed on both sides of the opening of the knife ring frame, and the torsion spring is arranged at the connection between the positioning side block and the open rotating frame; Wherein, the frame body of the open rotating frame located outside the opening of the knife ring frame is an arc frame.

[0010] As a further improvement of the technical solution, the positioning buffer connecting member includes a connecting rod, a guide block frame, an offset spring and a positioning spring, a positioning groove is opened on the side wall of the buffer head, the guide block frame is arranged in the positioning groove, the positioning spring is arranged between the guide block frame and the positioning groove, the connecting rod is arranged on the outer arc surface of the knife ring frame, and the connecting rod vertically passes through the guide block frame, the offset spring is arranged between the guide block frame and the outer arc surface of the knife ring frame, and the offset spring is arranged around the outside of the connecting rod; Among them, the guide block frame is a U-shaped block frame, and the guide block frame surrounds the outside of the knife ring frame, the connecting rods are distributed on three sides of the outer arc surface of the knife ring frame, and the connecting rods on the three sides of the knife ring frame vertically pass through the three frames of the guide block frame respectively.

[0011] As a further improvement of the present technical solution, the knife supply mechanism includes a placement base, a rotating shaft and a knife supply socket, the placement base is a metal base, the rotating shaft is horizontally rotatably installed at the end of the placement base, the knife supply socket is arranged at the end of the rotating shaft, and the knife supply socket and the insertion positioning head are at the same level, the knife supply socket and the insertion positioning head are respectively located on both sides of the rotating horizontal plate, and a milling cutter body is inserted at the lower end of the knife supply socket.

[0012] The tool changing mechanism also includes a control cylinder and a rotating motor. The rotating motor is arranged on the mounting base, and the output end of the rotating motor is vertically downward. The control cylinder is arranged on the output end of the rotating motor, and the output end of the control cylinder is vertically downward. The rotating cross plate is arranged on the output end of the control cylinder.

[0013] In order to achieve the above-mentioned purpose, the present invention also provides a substrate shape preliminary processing equipment, which includes the rotary tool changing assembly described in any one of the above items, and also includes a control cabinet, a driving mechanism is arranged above the control cabinet, the driving end of the driving mechanism is connected to the milling cutter assembly, the milling cutter assembly includes a rotating assembly, the rotating assembly is arranged on the driving end of the driving mechanism, the insertion and positioning head is arranged on the output end of the rotating assembly, and the milling cutter body is inserted at the lower end of the insertion and positioning head.

[0014] Compared with the prior art, the present invention provides a substrate shape preliminary processing device and a rotary tool changing assembly, which have the following beneficial effects: The present invention forms a multi-directional first layer of buffer on the outside of the cutter ring frame through the joint action of the tool feeding mechanism, the tool changing mechanism, the opening locking assembly and the positioning buffer connecting piece, and then forms a second buffer for the first layer of force unloading buffer structure through the guide block frame and the positioning spring. At the same time, the buffer cushion between the buffer head and the rotating cross plate is used to form a third force unloading buffer, thereby reducing the impact force generated by the cutter ring frame when it rotates close to and contacts the milling cutter body, thereby preventing the cutter ring frame from making hard contact with the milling cutter body.

[0015] In addition, when the offset springs in three directions act on the three sides of the cutter ring frame, the cutter ring frame can maintain a tendency to move toward the open side without the offset springs. When the milling cutter body is inserted from the open side of the cutter ring frame, the cutter ring frame and the milling cutter body can remain in close contact to prevent gaps. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention from another perspective; Figure 3 It is a structural schematic diagram of the tool changing mechanism in the present invention; Figure 4 for Figure 3 A magnified view of the structure at center; Figure 5 It is a schematic diagram of the structural distribution of the rotating horizontal plate and the buffer head in the present invention; Figure 6 for Figure 5 A magnified view of the structure at B in the middle; Figure 7It is a schematic diagram of the structural distribution of the rotating horizontal plate and the knife body receiving assembly in the present invention; Figure 8 for Figure 7 A magnified view of the structure at C in the middle; Fig. 9 It is a schematic diagram of the structural disassembly of the knife body receiving assembly in the present invention.

[0017] In the figure: 1. control cabinet; 2. driving mechanism; 3. milling cutter assembly; 301. rotating assembly; 302. inserting positioning head; 303. milling cutter body; 4. knife supply mechanism; 401. placing base; 402. rotating shaft; 403. knife supply socket; 5. knife changing mechanism; 51. rotating cross plate; 52. knife body receiving assembly; 521. buffer head; 522. knife ring frame; 53. control cylinder; 54. rotating motor; 6. opening locking assembly; 601. positioning side block; 602. opening rotating frame; 603. torsion spring; 7. positioning buffer connector; 701. connecting rod; 702. guide block frame; 703. offset spring; 704. positioning spring. DETAILED DESCRIPTION

[0018] 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.

[0019] Reference Figure 1-9 A substrate shape preliminary processing equipment includes a control cabinet 1, a driving mechanism 2 is arranged above the control cabinet 1, the driving end of the driving mechanism 2 is connected to the milling cutter assembly 3, the driving mechanism 2 is a driving device guided by a guide rail and driven by a cylinder, and the driving mechanism 2 includes a horizontal driving part and a vertical driving part, so that the driving mechanism 2 can drive the rotating assembly 301 to move horizontally and vertically, and the milling cutter assembly 3 includes a rotating assembly 301, an insertion positioning head 302 and a milling cutter body 303, the rotating assembly 301 is arranged on the driving end of the driving mechanism 2, the insertion positioning head 302 is arranged on the output end of the rotating assembly 301, the milling cutter body 303 is inserted at the lower end of the insertion positioning head 302, and a locking piece for locking the milling cutter body 303 is arranged at the edge of the insertion position of the insertion positioning head 302.

[0020] Reference Figure 1-9A rotary tool changing assembly is provided. In order to disperse the lateral extrusion force generated when the receiving part of the tool body contacts the milling cutter, prevent the milling cutter from tilting, and make the receiving part of the tool body close to the outer wall of the milling cutter to prevent the appearance of gaps, a tool feeding mechanism 4 and a tool changing mechanism 5 are provided here, which are used in conjunction with the insertion and positioning head 302 and the milling cutter body 303 of the above-mentioned substrate shape preliminary processing equipment. The tool feeding mechanism 4 is arranged on one side of the control cabinet 1, and the tool changing mechanism 5 includes a rotating cross plate 51 and a tool body receiving assembly 52. ​​The rotating cross plate 51 is arranged between the tool feeding mechanism 4 and the milling cutter body 303.

[0021] like Figure 3 and Figure 4 As shown, the blade receiving assembly 52 is arranged at both ends of the rotating horizontal plate 51, and the blade receiving assembly 52 includes a buffer head 521, a blade receiving ring frame 522, an opening locking assembly 6 and a positioning buffer connector 7. The buffer head 521 is rotatably arranged at the end of the rotating horizontal plate 51, and a connected buffer cushion is arranged between the buffer head 521 and the end of the rotating horizontal plate 51, which can form a connection between the buffer head 521 and the end of the rotating horizontal plate 51, and the buffer cushion can form an elastic buffer, so that the buffer head 521 has a certain elasticity at the end of the rotating horizontal plate 51 When the rotating cross plate 51 rotates and one end of the buffer head 521 comes into contact with the milling cutter body 303, there is elastic buffering in the contact between the buffer head 521 and the milling cutter body 303, and a concave slot is provided on one side wall of the buffer head 521, and the knife ring frame 522 is arranged in the concave slot, and the opening locking assembly 6 is arranged at the opening edge of the knife ring frame 522, and the positioning buffer connecting piece 7 is arranged between the knife ring frame 522 and the buffer head 521, so that there is a certain moving buffer space between the knife ring frame 522 and the buffer head 521.

[0022] The outer wall of the milling cutter body 303 is provided with a clamping ring, and the cutter ring frame 522 cooperates with the clamping ring, so that the cutter ring frame 522 can fit the clamping ring and be inserted to form a connection with the milling cutter body 303; Among them, the knife ring frame 522 is a U-shaped ring frame, such as Figure 4 and Figure 6 As shown, the edge of the opening of the cutter ring frame 522 is an arc edge, so that when the cutter ring frame 522 approaches the milling cutter body 303, the milling cutter body 303 can be guided into the cutter ring frame 522 through the arc edge of the opening of the cutter ring frame 522, and the opening locking components 6 are grouped in two and are mirror-symmetrically arranged at the edges on both sides of the opening of the cutter ring frame 522.

[0023] The open locking assembly 6 includes a positioning side block 601, an open rotating frame 602 and a torsion spring 603. The positioning side block 601 is arranged on the outside of the opening of the knife ring frame 522. The open rotating frame 602 is rotatably installed on the positioning side block 601. The open rotating frame 602 parts of the two open locking assemblies 6 are mirror-symmetrically distributed on both sides of the opening of the knife ring frame 522. The torsion spring 603 is arranged at the connection between the positioning side block 601 and the open rotating frame 602.

[0024] Among them, Figure 6 and Fig. 9 As shown, the frame body of the open rotating frame 602 located outside the opening of the knife ring frame 522 is an arc frame, such as Figure 8 As shown, the end of the open rotating frame 602 that exceeds the opening of the cutter ring frame 522 is an arc edge. When the cutter ring frame 522 approaches the milling cutter body 303 along with the buffer head 521, the clamping ring on the outer wall of the milling cutter body 303 will be inserted into the cutter ring frame 522. During the process, the clamping ring will squeeze the open rotating frame 602 to rotate outward. When the milling cutter body 303 is completely inserted into the cutter ring frame 522, the open rotating frame 602 is reset and squeezed on the clamping ring of the milling cutter body 303 under the torsion of the torsion spring 603, forming a clamping lock for the milling cutter body 303 in the cutter ring frame 522. At the same time, when the open rotating frame 602 squeezes the outer side of the milling cutter body 303, it can also provide an inward squeezing force to allow the milling cutter body 303 to fit into the opening of the cutter ring frame 522.

[0025] The positioning buffer connecting member 7 includes a connecting rod 701, a guide block frame 702, an offset spring 703 and a positioning spring 704. A positioning groove is opened on the side wall of the buffer head 521. The guide block frame 702 is arranged in the positioning groove. The positioning spring 704 is arranged between the guide block frame 702 and the positioning groove. The connecting rod 701 is arranged on the outer arc surface of the knife ring frame 522, and the connecting rod 701 vertically passes through the guide block frame 702. The offset spring 703 is arranged between the guide block frame 702 and the outer arc surface of the knife ring frame 522, and the offset spring 703 is arranged around the outside of the connecting rod 701.

[0026] The guide block frame 702 is a U-shaped block frame, and the guide block frame 702 surrounds the outside of the knife ring frame 522, and the connecting rods 701 are distributed on three sides of the outer arc surface of the knife ring frame 522, and the connecting rods 701 on the three sides of the knife ring frame 522 vertically pass through the three frames of the guide block frame 702, such as Figure 8 As shown, when the cutter ring frame 522 is inserted into the outer retaining ring of the milling cutter body 303, if excessive extrusion pressure is generated, the force can be relieved through the outer offset spring 703 of the cutter ring frame 522 and the guide block frame 702. At the same time, the positioning spring 704 can, on the one hand, position the guide block frame 702 in the positioning groove of the side wall of the buffer head 521, and on the other hand, help relieve the extrusion pressure on the guide block frame 702.

[0027] In addition, when the positioning spring 704 removes the squeezing force on the guide block frame 702, the positioning spring 704 will act on the buffer head 521, causing the buffer head 521 to rotate at the end of the rotating cross plate 51. At this time, the buffer pad between the buffer head 521 and the rotating cross plate 51 is squeezed to form a buffer for the buffer head 521.

[0028] The connecting rod 701 and the offset spring 703 are used to connect the knife ring frame 522 to form a multi-directional first layer of force unloading buffer, and the guide block frame 702 and the positioning spring 704 are used to form a second buffer for the structure of the first layer of force unloading buffer. At the same time, the buffer cushion between the buffer head 521 and the rotating cross plate 51 is used to form a third buffer. The impact force generated when the knife ring frame 522 rotates close to the milling cutter body 303 can be reduced to prevent the knife ring frame 522 from having a hard contact with the milling cutter body 303. At the same time, when the three-directional offset springs 703 act on the three sides of the knife ring frame 522, the knife ring frame 522 can maintain a trend of moving toward the side without the offset spring 703. When the milling cutter body 303 is inserted from the open side of the knife ring frame 522, the knife ring frame 522 can keep in close contact with the milling cutter body 303 to prevent the formation of gaps.

[0029] The knife supply mechanism 4 includes a placement base 401, a rotating shaft 402 and a knife supply socket 403. The placement base 401 is a metal base. The rotating shaft 402 is horizontally rotatably installed at the end of the placement base 401. The knife supply socket 403 is arranged at the end of the rotating shaft 402, and the knife supply socket 403 is at the same level as the insertion and positioning head 302. The knife supply socket 403 and the insertion and positioning head 302 are respectively located on both sides of the rotating horizontal plate 51. A milling cutter body 303 is inserted at the lower end of the knife supply socket 403. The milling cutter body 303 at the lower end of the knife supply socket 403 and the milling cutter body 303 at the lower end of the insertion and positioning head 302 can be respectively received by the knife body receiving components 52 at both ends of the rotating horizontal plate 51, and can be replaced after rotating the rotating horizontal plate 51.

[0030] The tool changing mechanism 5 further comprises a control cylinder 53 and a rotating motor 54. The rotating motor 54 is arranged on the mounting base 401, and the output end of the rotating motor 54 is vertically downward. The control cylinder 53 is arranged on the output end of the rotating motor 54, and the output end of the control cylinder 53 is vertically downward. The rotating horizontal plate 51 is arranged on the output end of the control cylinder 53. The rotating motor 54 can control the control cylinder 53 and the rotating horizontal plate 51 to rotate. At the same time, the control cylinder 53 can control the rotating horizontal plate 51 to move downward, so that when the knife body receiving components 5 at both ends of the rotating horizontal plate 51 are After receiving the milling cutter bodies 303 respectively, the control cylinder 53 can be started to control the rotating cross plate 51 to move downward, so that the two milling cutter bodies 303 leave the cutter supply socket 403 and the insertion positioning head 302 respectively, and then the rotating motor 54 is started to rotate the rotating cross plate 51, so that the milling cutter bodies 303 at both ends of the rotating cross plate 51 are rotated to the other side respectively, and then the control cylinder 53 is started to control the rotating cross plate 51 to move upward, so that the milling cutter bodies 303 that have completed the exchange are respectively inserted into the cutter supply socket 403 and the insertion positioning head 302, thereby completing the tool changing process.

[0031] Based on the above-mentioned substrate shape preliminary processing equipment and rotary tool changing assembly, its working principle is: first, use the rotating motor 54 to control the control cylinder 53 and the rotating cross plate 51 to rotate, so that the tool body receiving assembly 52 at both ends of the rotating cross plate 51 is close to the tool supply socket 403 and the milling cutter body 303 at the lower end of the insertion and positioning head 302 respectively. At this time, the tool ring frame 522 of the tool body receiving assembly 52 will be inserted into the clamping ring on the outside of the milling cutter body 303 to form a connection with the milling cutter body 303. At this time, the tool supply socket 403 and the insertion and positioning head 302 release the lock on the milling cutter body 303, and then start the control cylinder 53 to control the rotating cross plate 51 to move downward, so that the tool ring frame 522 can receive the milling cutter body 303 moves down, and the rotating motor 54 is started again at this time to rotate the rotating cross plate 51, so that the milling cutter bodies 303 at both ends of the rotating cross plate 51 are rotated to the other side respectively, and then the control cylinder 53 is started to control the rotating cross plate 51 to move up, so that the milling cutter bodies 303 that have completed the change of position are respectively inserted into the tool supply socket 403 and the positioning head 302, thereby completing the tool changing process, and the cutter ring frame 522 rotates with the buffer head 521 at the end of the rotating cross plate 51, and the cutter ring frame 522 is partially inserted into the outer retaining ring of the milling cutter body 303. During this process, the outer retaining ring of the milling cutter body 303 is inserted into the opening of the cutter ring frame 522, and the retaining ring first squeezes the open rotating frame 602 on both sides of the opening of the cutter ring frame 522. When the clamping ring of the milling cutter body 303 is fully inserted into the cutter ring frame 522, the open rotating frame 602 is reset and squeezed on the clamping ring of the milling cutter body 303 under the torsion of the torsion spring 603, forming a clamping lock for the milling cutter body 303 in the cutter ring frame 522. When the rotation of the rotating cross plate 51 causes the cutter ring frame 522 to generate an excessive impact force on the milling cutter body 303, the cutter ring frame 522 will move and squeeze the offset spring 703 to be compressed, and the connecting rod 701 slides through the guide block frame 702. The compression of the offset spring 703 can avoid the hard contact between the cutter ring frame 522 and the milling cutter body 303, and at the same time produce a buffering effect. The spring 703 will act on the guide block frame 702. At this time, the guide block frame 702 will be offset in the positioning groove of the side wall of the buffer head 521. At this time, the positioning spring 704 will play a positioning and buffering effect, and the positioning spring 704 will transfer the force to the buffer head 521, so that the buffer head 521 will rotate slightly at the end of the rotating cross plate 51 and squeeze the buffer cushion between the buffer head 521 and the rotating cross plate 51, forming a buffer for the buffer head 521, thereby forming a triple buffering effect on the connecting knife ring frame 522, dispersing the squeezing force generated by the connecting knife ring frame 522 on the milling cutter body 303, allowing the connecting knife ring frame 522 to keep in contact with the milling cutter body 303 while avoiding hard contact.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A rotary tool changing assembly, used in conjunction with an insert positioning head (302) and a milling cutter body (303), characterized in that: The tool changing assembly comprises a tool supply mechanism (4) and a tool changing mechanism (5), wherein the tool supply mechanism (4) is arranged on one side of the control cabinet (1); The tool changing mechanism (5) comprises a rotating transverse plate (51) and a tool body receiving assembly (52); the rotating transverse plate (51) is arranged between the tool supply mechanism (4) and the milling cutter body (303); The blade receiving assembly (52) is arranged at both ends of the rotating transverse plate (51), and comprises a buffer head (521), a blade receiving ring frame (522), an opening locking assembly (6) and a positioning buffer connecting piece (7); the buffer head (521) is rotatably arranged at the end of the rotating transverse plate (51), and a buffer cushion connected to the end of the rotating transverse plate (51) is arranged between the buffer head (521) and the end of the rotating transverse plate (51); a concave slot is provided on one side wall of the buffer head (521), the blade receiving ring frame (522) is arranged in the concave slot, the opening locking assembly (6) is arranged at the opening edge of the blade receiving ring frame (522), and the positioning buffer connecting piece (7) is arranged between the blade receiving ring frame (522) and the buffer head (521).

2. A rotary tool changing assembly according to claim 1, characterized in that: The outer wall of the milling cutter body (303) is provided with a clamping ring, and the cutter ring frame (522) cooperates with the clamping ring, so that the cutter ring frame (522) can be inserted into the clamping ring to form a connection with the milling cutter body (303); The knife ring frame (522) is a U-shaped ring frame, and two opening locking components (6) form a group and are arranged at both side edges of the opening of the knife ring frame (522) in a mirror-symmetrical manner.

3. The rotary tool changing assembly according to claim 2, characterized in that: The open locking assembly (6) comprises a positioning side block (601), an open rotating frame (602) and a torsion spring (603); the positioning side block (601) is arranged outside the opening of the knife receiving ring frame (522); the open rotating frame (602) is rotatably mounted on the positioning side block (601); the open rotating frames (602) of the two open locking assemblies (6) are mirror-symmetrically distributed on both sides of the opening of the knife receiving ring frame (522); and the torsion spring (603) is arranged at the connection between the positioning side block (601) and the open rotating frame (602); Wherein, the frame body of the open rotating frame (602) located outside the opening of the knife ring frame (522) is an arc-shaped frame.

4. The rotary tool changing assembly according to claim 1, characterized in that: The positioning buffer connecting member (7) comprises a connecting rod (701), a guide block frame (702), an offset spring (703) and a positioning spring (704); a positioning groove is provided on the side wall of the buffer head (521); the guide block frame (702) is arranged in the positioning groove; the positioning spring (704) is arranged between the guide block frame (702) and the positioning groove; the connecting rod (701) is arranged on the outer arc surface of the knife ring frame (522), and the connecting rod (701) vertically passes through the guide block frame (702); the offset spring (703) is arranged between the guide block frame (702) and the outer arc surface of the knife ring frame (522), and the offset spring (703) is arranged around the outside of the connecting rod (701); The guide block frame (702) is a U-shaped block frame, and the guide block frame (702) surrounds the outside of the knife ring frame (522), the connecting rods (701) are distributed on three sides of the outer arc surface of the knife ring frame (522), and the connecting rods (701) on the three sides of the knife ring frame (522) respectively vertically pass through the three frame bodies of the guide block frame (702).

5. The rotary tool changing assembly according to claim 1, characterized in that: The knife supply mechanism (4) comprises a placement base (401), a rotating shaft (402) and a knife supply socket (403); the placement base (401) is a metal base; the rotating shaft (402) is rotatably mounted at the end of the placement base (401) in a horizontal direction; the knife supply socket (403) is arranged at the end of the rotating shaft (402); the knife supply socket (403) and the insertion positioning head (302) are at the same level; the knife supply socket (403) and the insertion positioning head (302) are respectively located on two sides of a rotating horizontal plate (51); and a milling cutter body (303) is inserted at the lower end of the knife supply socket (403).

6. The rotary tool changing assembly according to claim 5, characterized in that: The tool changing mechanism (5) further comprises a control cylinder (53) and a rotating motor (54); the rotating motor (54) is arranged on the mounting base (401), and the output end of the rotating motor (54) is vertically downward; the control cylinder (53) is arranged on the output end of the rotating motor (54), and the output end of the control cylinder (53) is vertically downward; and the rotating horizontal plate (51) is arranged on the output end of the control cylinder (53).

7. A substrate profile preliminary processing device, which uses the rotary tool changing assembly according to any one of claims 1 to 6 to perform tool changing operations, characterized in that: include: A control cabinet (1), wherein a driving mechanism (2) is arranged above the control cabinet (1), the driving end of the driving mechanism (2) is connected to a milling cutter assembly (3), the milling cutter assembly (3) comprises a rotating assembly (301), the rotating assembly (301) is arranged on the driving end of the driving mechanism (2), the insertion positioning head (302) is arranged on the output end of the rotating assembly (301), and the milling cutter body (303) is inserted at the lower end of the insertion positioning head (302).

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