Quick tool changing structure of servo tool magazine

Abstract

The utility model provides a quick tool changing structure of a servo tool magazine, which comprises a rack and a servo motor, and the servo motor is mounted in the rack through a bolt; the output end of the servo motor is fixedly connected with a cutter head; the device is characterized in that the output end of the servo motor is connected with a base plate parallel to the cutter head through a bolt and located on the lower side of the cutter head; the outer side wall of the cutter head is connected with a plurality of cutter fixing assemblies through bolts. The tool fixing assembly comprises a clamping module for clamping a tool and a feeding module for jacking the tool upwards, and the clamping module and the feeding module can act at the same time. According to the tool changing speed, cooperation of all actions is achieved through driving of the air cylinder, the roller shaft jacks up the tool, the stroke is shortened, and the tool changing time is greatly shortened; the tool clamping reliability and stability are enhanced, the tool is firmly and evenly clamped through the clamping module design and the precise force transmission mechanism, the positioning precision is improved, and the requirements for high efficiency, high precision and high reliability of modern machining are met.

Description

Technical Field

[0001] This utility model relates to the field of servo tool magazines, and in particular to a fast tool change structure for servo tool magazines. Background Technology

[0002] In the field of modern machining, the degree of automation is increasing day by day. As a key component of CNC machine tools and other mechanical equipment, the importance of servo tool magazines is self-evident. Servo tool magazines can realize automatic tool storage and switching, which greatly improves machining efficiency and accuracy, and reduces the labor intensity and time cost of manual tool changing.

[0003] While traditional servo tool magazines have achieved certain results in their long-term development and application, they have also gradually exposed some technical problems. For example, the tool changing speed of traditional servo tool magazines is relatively slow. In complex machining processes, frequent tool changes require a lot of time, which limits the overall machining efficiency of the equipment. For example, in some high-precision, multi-process machining tasks, excessively long tool change times can seriously affect the production schedule.

[0004] To address the aforementioned technical problems of traditional servo tool magazines, there is an urgent need for a more efficient, stable, and precise tool changing structure; to achieve fast and accurate tool switching and improve the overall performance and reliability of the servo tool magazine. Utility Model Content

[0005] To address the issue of excessive time required for tool switching in existing servo tool magazines, this invention provides a fast tool changing structure for servo tool magazines.

[0006] The servo tool magazine quick tool change structure provided by this utility model adopts the following technical solution:

[0007] A servo tool magazine quick-change structure includes a frame and a servo motor. The servo motor is bolted to the inside of the frame. A tool disc is fixedly connected to the output end of the servo motor. The servo motor's output end is bolted to a base parallel to the tool disc, located below the tool disc. Several tool fixing components are bolted to the outer wall of the tool disc. Each tool fixing component includes a clamping module for clamping the tool and a feed module for lifting the tool upwards. The clamping module and the feed module can operate simultaneously.

[0008] Furthermore, a plurality of mounting brackets are bolted to the outer side wall of the cutter head; the mounting brackets are arranged in a circumferential array on the outer side wall of the cutter head; each mounting bracket is fitted with a housing for accommodating the cutter fixing assembly;

[0009] Furthermore, the clamping module includes a slide rail, an extrusion block, a clamping plate, and a top block; the slide rail is bolted between two opposite side walls inside the housing; two symmetrical clamping plates are slidably connected on the slide rail; the opposite side walls of the two clamping plates are respectively provided with grooves for clamping with the cutting tool; the outer side walls of the two clamping plates are bolted to an extrusion block; the extrusion block; a top block is slidably connected between the two extrusion blocks to extrude the extrusion blocks to both sides;

[0010] Furthermore, the extrusion block is a right-angled trapezoidal structure, with the hypotenuses of the two extrusion blocks facing each other; the top block is an isosceles trapezoidal structure, with its two symmetrical hypotenuses slidingly connected to the hypotenuses of the extrusion blocks respectively, and the connection method is an interlocking sliding connection of dovetail groove and wedge block;

[0011] Furthermore, the same number of cylinders are bolted to the top of the chassis corresponding to the position of the outer shell. The output end of each cylinder is connected to one end of an output push rod. The other end of the output push rod extends through the outer shell into the interior of the outer shell, located on the lower side of the clamping plate, and is rotatably connected to a roller shaft for abutting the bottom edge of the tool, which can lift the tool when pushed. An extension plate is welded to the outer wall of the output push rod. One end of a second push rod is bolted to the outer wall of the extension plate. The other end of the second push rod extends through the outer shell into the interior and is connected to the outer wall of the top block through a connecting bracket.

[0012] In summary, the beneficial effects of this utility model are as follows:

[0013] In terms of tool changing speed, this invention utilizes a cylinder drive to coordinate all actions, and a roller shaft to lift the tool, shortening the stroke and significantly reducing tool changing time. Tool clamping reliability and stability are enhanced; the clamping module design and precise force transmission mechanism ensure secure and uniform tool clamping, improving positioning accuracy. A servo motor precisely controls the rotation of the tool disc, ensuring the tool accurately reaches the tool changing position. The roller shaft's auxiliary positioning further guarantees accuracy. Furthermore, the reasonable structural layout, protective design, and component connection methods enhance the overall stability and reliability of the equipment, meeting the demands of modern machining for high efficiency, high precision, and high reliability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a top view of the overall structure of this utility model;

[0016] Figure 3 This utility model Figure 2 An enlarged schematic diagram of part A in the middle;

[0017] Figure 4 This is a side view of the overall structure of this utility model;

[0018] Figure 5 This utility model Figure 4 Enlarged schematic diagram of part B.

[0019] As shown in the figure: 1-Frame, 11-Servo motor, 2-Cutter head, 21-Chassis, 3-Outer shell, 31-Mounting bracket, 4-Cylinder, 41-Output push rod, 42-Extension plate, 43-Second push rod, 5-Slide rail, 51-Extrusion block, 52-Clamping plate, 53-Top block, 54-Connecting frame, 6-Roller shaft, 7-Cutter. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1-5 The present invention will be further described in detail below:

[0021] This utility model embodiment discloses a servo tool magazine quick tool change structure, such as Figure 1 , 2 As shown in Figure 4, the servo tool magazine quick tool change structure includes a frame 1 and a servo motor 11. The servo motor 11 is bolted inside the frame 1. The output end of the servo motor 11 is fixedly connected to the tool disc 2. The key feature is that the output end of the servo motor 11 is bolted to a base 21 parallel to the tool disc 2, located below the tool disc 2. Several tool fixing components are bolted to the outer wall of the tool disc 2. The tool fixing components include a clamping module for clamping the tool 7 and a feed module for lifting the tool 7 upwards. The clamping module and the feed module can move simultaneously. In this embodiment, a tool fixing assembly is installed on the tool disc 2. The tool disc 2 is rotated by the servo motor 11, which moves the required tool 7 to the designated tool changing position, thereby realizing the switching of the tool 7. The chassis 21 is parallel to the tool disc 2 and is installed on the lower side of the tool disc 2, which plays a role in assisting the installation and supporting related components. After the servo motor 11 is powered on and started, its output shaft starts to rotate, which drives the tool disc 2, which is fixedly connected to it, to rotate synchronously. The rotation of the tool disc 2 causes the tool fixing assembly and the tool 7 installed on its outer side wall to rotate accordingly, and the corresponding tool 7 is rotated to the tool changing position according to the processing requirements.

[0022] like Figure 1 , 2As shown in Figure 4, several mounting brackets 31 are bolted to the outer wall of the cutter head 2. The mounting brackets 31 are arranged in a circumferential array on the outer wall of the cutter head 2. Each mounting bracket 31 is equipped with a housing 3 for accommodating the tool fixing assembly. In this embodiment, the mounting brackets 31 arranged in a circumferential array on the outer wall of the cutter head 2 are used to install the housing 3. The housing 3 provides a relatively enclosed and stable installation space for the tool fixing assembly, protecting the tool fixing assembly from interference from external environmental factors, and also facilitating the installation and maintenance of the tool fixing assembly. During the rotation of the cutter head 2, the mounting brackets 31 and the housing 3 rotate together with the cutter head 2, always maintaining a constant relative position, ensuring that the tool fixing assembly can stably follow the movement of the cutter head 2.

[0023] like Figure 3 As shown, the clamping module includes a slide rail 5, a pressing block 51, a clamping plate 52, and a top block 53. The slide rail 5 is bolted between two opposite sidewalls inside the outer casing 3. Two symmetrical clamping plates 52 are slidably connected to the slide rail 5. Grooves for clamping the cutting tool 7 are respectively provided on the opposite sidewalls of the two clamping plates 52. Pressing blocks 51 are bolted to the outer sidewalls of both clamping plates 52. A top block 53, which can press the pressing blocks 51 to both sides, is slidably connected between the two pressing blocks 51. In this embodiment, the main function of the clamping module is to clamp and release the cutting tool 7. The slide rail 5 provides a guide for the sliding of the clamping plates 52, allowing the clamping plates 52 to move within a certain range. The top block 53 moves smoothly within the machine; by pressing the pressing block 51, the special shape of the pressing block 51 is used to convert the linear motion of the top block 53 into the opposing or opposite motion of the clamping plates 52, thereby achieving the clamping and releasing of the tool 7; when it is necessary to clamp the tool 7, the top block 53 moves away from the tool 7, and the pressing block 51 moves to both sides under the action of the top block 53, driving the clamping plates 52 to move closer to the center. The grooves on the two clamping plates 52 cooperate with the tool 7 to clamp the tool 7; when it is necessary to release the tool 7, the top block 53 moves closer to the tool 7, and the pressing block 51 separates to both sides under the pressure of the top block 53. The clamping plates 52 then move to both sides, thereby releasing the tool 7;

[0024] like Figure 3As shown, the extrusion block 51 has a right-angled trapezoidal structure, with the hypotenuses of the two extrusion blocks 51 facing each other; the top block 53 has an isosceles trapezoidal structure, with its two symmetrical hypotenuses slidingly connected to the hypotenuses of the extrusion blocks 51 respectively, and the connection method is an interlocking sliding connection of dovetail grooves and wedge blocks; in this embodiment, the extrusion block 51 adopts a right-angled trapezoidal structure, with the hypotenuses of the two extrusion blocks 51 facing each other, and the top block 53 adopts an isosceles trapezoidal structure, and the hypotenuses of the top block 53 and the hypotenuses of the extrusion blocks 51 are connected by dovetail grooves and wedge blocks. The locking sliding connection allows the top block 53 to effectively transmit force to the pressing block 51 during movement, while maintaining good guidance and stability during the movement, preventing misalignment or separation between the pressing block 51 and the top block 53. When the top block 53 moves along its axial direction, the inclined side of the top block 53 interacts with the inclined side of the pressing block 51. Due to the interlocking of the dovetail groove and the wedge block, the linear motion of the top block 53 is converted into the lateral motion of the pressing block 51, thereby driving the movement of the clamping plate 52.

[0025] like Figure 1 , 2 As shown in Figures 4 and 5, the same number of cylinders 4 are bolted to the top of the chassis 21 corresponding to the position of the outer shell 3. The output end of the cylinder 4 is connected to one end of an output push rod 41. The other end of the output push rod 41 extends through the outer shell 3 into the interior of the outer shell 3, located on the lower side of the clamping plate 52, and is rotatably connected to a roller shaft 6 for abutting the bottom edge of the cutter 7. When pushed, it can lift the cutter 7. An extension plate 42 is welded to the outer wall of the output push rod 41. One end of a second push rod 43 is bolted to the outer wall of the extension plate 42. The other end of the second push rod 43 extends through the outer shell 3 into the interior and is connected to the outer wall of the top block 53 through a connecting bracket 54. In this embodiment, the cylinder 4 serves as a power source, and the linear motion of the cylinder 4 is transmitted to the cutter 7 and the top block through the output push rod 41. 53; The roller shaft 6 on the output push rod 41 is used to abut the bottom edge of the tool 7. When the cylinder 4 pushes forward, the roller shaft 6 lifts the tool 7 upward, shortening the tool change stroke. At the same time, the extension plate 42 and the second push rod 43 on the output push rod 41 transmit the movement of the cylinder 4 to the top block 53, causing the top block 53 to move, thereby realizing the opening and closing of the clamping plate 52. When the cylinder 4 retracts, the output push rod 41 retracts accordingly, and the second push rod 43 drives the top block 53 to move away from the tool 7, so that the clamping plate 52 clamps the tool 7 in the middle. When a tool change is required, the cylinder 4 pushes forward, the output push rod 41 moves forward, the roller shaft 6 lifts the tool 7 upward, and at the same time, the second push rod 43 drives the top block 53 to move closer to the tool 7, and the clamping plate 52 separates to both sides, releasing the tool 7.

[0026] The implementation principle of this utility model embodiment is as follows:

[0027] When this utility model is in use, the control system determines the tool 7 that needs to be replaced according to the processing requirements and calculates the position of the tool 7 on the tool disc 2; the servo motor 11 starts after receiving the instruction from the control system and drives the tool disc 2 to rotate; since the tool fixing component on the outer wall of the tool disc 2 and the tool 7 rotate synchronously with the tool disc 2, the tool disc 2 will rotate the tool 7 that needs to be replaced to the designated tool replacement position.

[0028] When the tool 7 rotates to the designated tool change position, the control system controls the cylinder 4 on the top of the chassis 21 at the corresponding position to start operating, and the piston rod of the cylinder 4 extends forward; the piston rod of the cylinder 4 pushes the output push rod 41 forward, and the roller shaft 6 at the end of the output push rod 41 moves forward accordingly and abuts against the bottom edge of the tool 7; as the output push rod 41 continues to push forward, the roller shaft 6 lifts the tool 7 upward, raising the tool 7 to a certain height, thereby shortening the stroke during subsequent tool changes; at the same time as the output push rod 41 moves forward, the extension plate 42 welded to its outer wall also moves forward; the extension plate 42 drives the second push rod 43 connected to it to move forward, and the other end of the second push rod 43 is connected to the connecting bracket 5. 4 is connected to the top block 53, thus pushing the top block 53 to move closer to the tool 7; the top block 53 is an isosceles trapezoidal structure, and its two symmetrical hypotenuses are respectively connected to the hypotenuses of the right trapezoidal extrusion block 51 through the interlocking sliding connection of dovetail grooves and wedge blocks; when the top block 53 moves forward, its hypotenuses will squeeze the hypotenuses of the extrusion block 51, causing the two extrusion blocks 51 to separate to both sides; during the process of the extrusion blocks 51 separating to both sides, the clamping plate 52 connected to it by bolts will slide to both sides under the guidance of the slide rail 5; since the opposite side walls of the two clamping plates 52 are provided with grooves for clamping the tool 7, the sliding of the clamping plates 52 to both sides will cause the grooves to separate from the tool 7, thereby releasing the tool 7;

[0029] When the tool 7 is released and lifted, the tool changing device starts to work; the tool changing device removes the old tool 7 in the tool changing position from the tool fixing assembly and places it in the designated tool storage position; the tool changing device then selects a new tool 7 from the tool storage position and moves it to the released tool fixing assembly on the tool turret 2.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A servo tool magazine quick tool change structure, comprising a frame (1) and a servo motor (11), wherein the servo motor (11) is bolted to the inside of the frame (1); the output end of the servo motor (11) is fixedly connected to a tool disc (2); characterized in that: The output end of the servo motor (11) is connected to a chassis (21) parallel to the cutter head (2) by bolts, located on the lower side of the cutter head (2); the outer wall of the cutter head (2) is connected to several tool fixing components by bolts; the tool fixing components include a clamping module for clamping the tool (7) and a feed module for lifting the tool (7) upward, and the clamping module and the feed module can operate simultaneously.

2. The servo tool magazine quick tool change structure according to claim 1, characterized in that... The outer wall of the cutter head (2) is bolted with a number of mounting brackets (31); the mounting brackets (31) are arranged in a circumferential array on the outer wall of the cutter head (2); each mounting bracket (31) is equipped with a housing (3) for accommodating the tool fixing assembly.

3. The servo tool magazine quick tool change structure according to claim 2, characterized in that... The clamping module includes a slide rail (5), an extrusion block (51), a clamping plate (52), and a top block (53); the slide rail (5) is bolted between two opposite side walls inside the outer shell (3); two symmetrical clamping plates (52) are slidably connected on the slide rail (5); the opposite side walls of the two clamping plates (52) are respectively provided with grooves for clamping the cutting tool (7); the outer side walls of the two clamping plates (52) are bolted to an extrusion block (51); the extrusion block (51); a top block (53) is slidably connected between the two extrusion blocks (51) to extrude the extrusion block (51) to both sides.

4. The servo tool magazine quick tool change structure according to claim 3, characterized in that... The extrusion block (51) is a right-angled trapezoidal structure, and the hypotenuses of the two extrusion blocks (51) are opposite to each other; the top block (53) is an isosceles trapezoidal structure, and its two symmetrical hypotenuses are slidably connected to the hypotenuses of the extrusion blocks (51) respectively. The connection method is an interlocking sliding connection of dovetail groove and wedge block.

5. The servo tool magazine quick tool change structure according to claim 4, characterized in that... The top of the chassis (21) is fitted with the same number of cylinders (4) by bolts at the position corresponding to the outer shell (3). The output end of the cylinder (4) is connected to one end of the output push rod (41). The other end of the output push rod (41) extends through the outer shell (3) to the inside of the outer shell (3) and is located on the lower side of the clamping plate (52). It is rotatably connected to a roller shaft (6) for abutting the bottom edge of the cutter (7). When pushed, the cutter (7) can be lifted up.

6. The servo tool magazine quick tool change structure according to claim 5, characterized in that... An extension plate (42) is welded to the outer wall of the output push rod (41); one end of the second push rod (43) is bolted to the outer wall of the extension plate (42); the other end of the second push rod (43) extends through the outer shell (3) into the interior and is connected to the outer wall of the top block (53) through the connecting frame (54).

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