A knife claw structure for a flat tool magazine and a method of using the same

Abstract

The present invention relates to the field of mechanical processing technology, and in particular to a knife claw structure for a horizontal tool magazine and a method of using the same, comprising: a chain seat; a mounting seat, fixed to the chain seat, composed of a bottom plate and an upper cover, two rotating shafts symmetrically arranged on both sides of the bottom plate; two knife claws, symmetrically arranged on both sides of the bottom plate; a bayonet for grabbing a tool is arranged at one end of the knife claw, and a sliding groove facing the tool magazine is arranged at the other end, the rotating shaft extends into the corresponding sliding groove, and a slot is arranged on the side; a spring extends into the two slots and is compressed by the two knife claws; a limiting device is used to limit the opening angle of the knife claw; when the knife claw moves to the end of the sliding groove away from the tool magazine, the spring stops close to the side of the tool magazine; when the knife claw moves to the end of the sliding groove close to the tool magazine, the spring stops at the side away from the tool magazine. The present invention comprehensively considers stability, accuracy, protection, simplified operation, improved safety and other factors by setting the position of the spring, and provides the comprehensive advantages of reliability and ease of operation.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing and manufacturing, and in particular to a tool claw structure for a horizontal tool magazine and a use method thereof. Background Art

[0002] CNC machine tools are widely used in modern manufacturing for the processing of precision parts. The automatic tool replacement system is an important part of the automated processing of CNC machine tools, and the tool magazine is one of the core components. The flat tool magazine is a form of tool magazine, which is characterized by the horizontal placement of tools and the storage and access of tools through the movement of the tool magazine chain. The tool claw is a key component in the tool magazine for grabbing and fixing tools, and its design directly affects the clamping stability and replacement efficiency of the tool.

[0003] Traditional knife claw designs usually have the following problems: Knife claw wear. Due to frequent grabbing and placing of tools, the clamping part of the knife claw may wear out, resulting in loose tool clamping and affecting processing accuracy; Knife claw springs are prone to fatigue. The springs inside the knife claws may lose their elasticity after long-term use, resulting in insufficient clamping force, which may cause the tool to loosen or fall off when rotating at high speed. A stable and efficient new type of flat tool magazine structure and its use method are urgently needed.

[0004] In view of the limitations of the existing technical solutions in that the claws are severely worn and the claw springs are easily fatigued, we urgently need a new structure for a flat tool magazine and its use method. This new device should be able to effectively solve the problem of unstable clamping caused by claw wear and claw spring fatigue in the flat tool magazine, improve stability, and increase the life of the claws. Summary of the invention

[0005] The present invention provides a knife claw structure for a horizontal knife magazine and a use method thereof, which can effectively solve the problems in the background technology.

[0006] The present invention provides a knife claw structure for a flat tool magazine, comprising:

[0007] Chain seat, connected with tool magazine chain;

[0008] The mounting seat is fixedly mounted on the chain seat; it provides installation space and vertical limit; the mounting seat is composed of a bottom plate and an upper cover; two rotating shafts are symmetrically arranged on both sides of the bottom plate;

[0009] Two knife claws are symmetrically arranged on both sides of the bottom plate; one end of each knife claw is provided with a slot for grabbing a knife, and the other end is provided with a sliding slot extending toward the tool magazine; each rotating shaft extends into a corresponding sliding slot; and a slot is also provided on the side of each knife claw;

[0010] The two ends of the spring extend into the two slots respectively, and the spring is squeezed into a compressed state by the two claws;

[0011] A limit device, fixedly mounted on the mounting seat, is used to limit the opening angle of the knife claws;

[0012] When the knife claw moves so that the end of the sliding slot away from the tool magazine stops at the rotating shaft, the spring stops at the side of the rotating shaft close to the tool magazine;

[0013] When the knife claw moves to make the end of the sliding slot close to the tool magazine stop at the rotating shaft, the spring stops at the side of the rotating shaft away from the tool magazine.

[0014] Further, it also includes a locking mechanism;

[0015] The locking mechanism includes:

[0016] A fixed seat is mounted on the bottom plate, and a guide rod is mounted on the fixed seat;

[0017] A locking pin, mounted on the knife claw;

[0018] A locking hook, wherein the locking hook is provided with a guide hole for the guide rod to pass through, and the locking hook moves along the axis direction of the guide rod;

[0019] A locking spring, the locking spring being compressed between the fixing seat and the locking hook;

[0020] A push rod, used to open or close the locking mechanism;

[0021] When the locking mechanism is in a locked state, the push rod is retracted toward the tool magazine, and the locking spring pushes the locking hook toward the tool magazine;

[0022] When the locking mechanism is opened, the push rod extends away from the tool magazine, driving the locking hook to move away from the tool magazine.

[0023] Furthermore, the contact surfaces of the push rod and the locking hook are both planes.

[0024] Furthermore, the push rod is a tubular structure, and a shaped exhaust groove is opened on the push rod.

[0025] Furthermore, a directional column for the spring sleeve is installed in the slot, and the directional column is a bolt screwed into the knife claw.

[0026] Furthermore, the rotating shaft passes through the top cover of the knife claw, and is also provided with an oil filling hole for injecting grease into the sliding groove.

[0027] Furthermore, the upper cover is provided with a positioning key corresponding to the tool groove.

[0028] Furthermore, the positioning key and the upper cover are integrally formed.

[0029] Furthermore, the limiting device is a screw that passes through the upper cover and is tightened on the bottom plate.

[0030] The present invention also provides a method for using a knife claw structure for a flat tool magazine, which is used for the knife claw structure for a flat tool magazine as described above, comprising:

[0031] S10: The push rod pushes the locking hook away from the tool magazine to unlock the locking mechanism;

[0032] S20: The tool remover drives the tool and the knife claw to move away from the tool magazine, and the spring moves from the side of the rotating shaft close to the tool magazine to the side of the rotating shaft away from the tool magazine. The elastic force of the spring keeps the knife claw in an open state, and the positioning device limits the opening angle of the knife claw;

[0033] S30: The tool release device drives the tool to move toward the tool magazine, the tool contacts the clamping port, drives the tool claw to move toward the tool magazine, the spring moves from the side of the rotating shaft away from the tool magazine to the side of the rotating shaft close to the tool magazine, and the elastic force of the spring causes the tool claw to clamp the tool;

[0034] S40: The push rod is retracted toward the tool magazine, and the locking hook moves toward the tool magazine under the elastic force of the locking spring, so that the locking hook hooks the locking pin and provides a force pointing toward the tool magazine, so that the tool claw is in a locked state.

[0035] The beneficial effects of the present invention are as follows: through the design of the claws moving back and forth during the process of picking up and releasing the knife, symmetrical arrangement, spring assistance, automatic locking and limiting devices, etc., comprehensive consideration is given to factors such as stability, accuracy, protection, simplified operation, and improved safety, providing a comprehensive advantage of reliability and ease of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 It is a front and side view of a knife claw structure for a horizontally placed tool magazine in an embodiment of the present invention;

[0038] Figure 2 A top view of a tool claw structure for a flat tool magazine in an embodiment of the present invention;

[0039] Figure 3 It is a front and side view of a tool claw structure (hiding a push rod and an upper cover) for a flat tool magazine in an embodiment of the present invention;

[0040] Figure 4 A top view of a tool claw structure (with a push rod and an upper cover hidden) for a flat tool magazine in an embodiment of the present invention;

[0041] Figure 5 It is a side view of a tool claw structure (hiding a push rod and an upper cover) for a flat tool magazine in an embodiment of the present invention;

[0042] Figure 6 In the embodiment of the present invention Figure 5 Sectional view at AA;

[0043] Figure 7 In the embodiment of the present invention Figure 5 Sectional view at the middle BB;

[0044] Figure 8 In the embodiment of the present invention Figure 7 Enlarged view of point C in the middle;

[0045] Fig. 9 The state of the tool claw structure for the horizontal tool magazine in the embodiment of the present invention after completing steps S10 and S30;

[0046] Fig.10 The state of the tool claw structure for horizontally placing the tool magazine in the embodiment of the present invention after completing step S20;

[0047] Figure numerals: 1, chain seat; 2, mounting seat; 21, base plate; 21a, rotating shaft; 22, upper cover; 22a, positioning key; 3, knife claw; 31, bayonet; 32, sliding groove; 33, slot; 4, spring; 41, directional column; 5, limit device; 6, locking mechanism; 61, fixing seat; 61a, guide rod; 62, locking pin; 63, locking hook; 63a, guide hole; 64, locking spring; 65, push rod; 65a, V-shaped exhaust groove. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0049] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside”, etc., are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0050] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] like Figures 1 to 10 The tool claw structure for a flat tool magazine shown in the figure comprises: a chain seat 1 connected to the tool magazine chain; Figures 1 to 3 As shown, the primary function of the chain seat 1 design is to reliably connect the knife claw structure with the tool magazine chain. Through this connection, the knife claw structure can move along the motion trajectory of the chain to achieve the selection and access of the tool. The chain seat 1 provides a stable support platform for the installation of the knife claw structure, ensuring that the entire knife claw structure remains stable during operation.

[0052] The mounting seat 2 is fixedly mounted on the chain seat 1 to provide installation space and vertical limit; the mounting seat 2 is composed of a bottom plate 21 and an upper cover 22; two rotating shafts 21a are symmetrically arranged on both sides of the bottom plate 21; Figures 1 to 9 As shown, the mounting seat 2 serves as the basic structure of the knife claw system, providing a stable mounting platform for the knife claw 3 and its related components. The mounting seat 2 provides enough space to accommodate various components such as the knife claw 3, the spring 4, the limit device 5 and the locking mechanism 6. The mounting seat 2 is composed of a base plate 21 and an upper cover 22. This structural design facilitates the installation and maintenance of various components. When inspection or maintenance is required, it is only necessary to open the upper cover 22, which simplifies the operation process. Through the design of the mounting seat 2, the vertical direction of the knife claw 3 can be effectively limited to prevent the knife claw 3 from being displaced or shaken in the vertical direction during the working process, thereby reducing safety accidents caused by the shaking or falling of the tool, thereby improving the stability and reliability of the system. The mounting seat 2 provides good protection, so that each component is protected from the influence of the external environment during the working process, reducing the failure rate, and improving the reliability and service life of the system.

[0053] Two knife claws 3 are symmetrically arranged on both sides of the bottom plate 21; one end of each knife claw 3 is provided with a bayonet 31 for grabbing a knife, and the other end is provided with a sliding groove 32 extending toward the tool magazine; each rotating shaft 21a extends into a corresponding sliding groove 32; a bayonet 33 is also provided on the side of each knife claw 3; Figures 3 to 10As shown, the knife claws 3 are symmetrically arranged on both sides of the bottom plate 21, and a bayonet 31 for grabbing a knife is arranged at one end of each knife claw 3, and a sliding groove 32 extending toward the tool magazine is arranged at the other end, and each rotating shaft 21a extends into a corresponding sliding groove 32, and a bayonet 33 is also arranged on the side of each knife claw 3. The rotating shaft 21a cooperates with the sliding groove 32 of the knife claw 3 to realize the movement of the knife claw 3. A bayonet 33 is arranged on the side of each knife claw 3.

[0054] The two ends of the spring 4 extend into the two slots 33 respectively, and the spring 4 is squeezed into a compressed state by the two knife claws 3.

[0055] The limit device 5 is fixedly mounted on the mounting base 2 and is used to limit the opening angle of the knife claw 3. This design ensures that the knife claw 3 does not exceed the preset angle range when opening and closing, thereby preventing the knife claw 3 from being excessively opened or closed. The existence of the limit device 5 ensures that the angle of opening and closing of the knife claw 3 is consistent during each operation, improves the repeatability and accuracy of the operation, and ensures that the tool can be accurately grasped and placed.

[0056] When the claw structure needs to clamp the tool, such as Figures 1 to 4 As shown, the tool will be fed into the two tool claws 3 and pushed toward the tool magazine. During the pushing process, the tool will push the tool claw 3 to move, so that the sliding groove 32 of the tool claw 3 stops at the rotating shaft 21a at one end away from the tool magazine, and the spring 4 will eventually stop at the side of the rotating shaft 21a away from the tool magazine. In this state, the spring 4 and the clamping mouth 31 of the tool claw 3 are on both sides of the rotating shaft 21a, and the compressed spring 4 will provide a stable clamping force to the tool clamped by the tool claw 3 through the lever formed by the tool claw 3 and the rotating shaft 21a, so that the clamping mouth 31 clamps the tool.

[0057] When the claw structure needs to remove the tool, such as Fig.10 As shown, the tool will move in the direction away from the tool magazine and drive the two knife claws 3 to move, so that the end of the sliding groove 32 close to the tool magazine stops at the rotating shaft 21a, and the spring 4 will eventually stop on the side of the rotating shaft 21a away from the tool magazine. In this state, the spring 4 and the snap-in 31 of the knife claw 3 are on the same side of the rotating shaft 21a, and the compressed spring 4 will push the two knife claws 3 away from each other, realizing the opening action of the knife claw structure.

[0058] Through the knife claw structure of the present invention, the position of the spring 4 can be automatically changed with the movement of the tool during the process of clamping and removing the tool, so that the two knife claws 3 can respectively realize the automatic clamping and automatic opening functions, reduce the friction and impact between the knife claws 3 and the tool, and further extend the service life of the equipment. Through the precise positioning and force design of the spring 4, the knife claw 3 can quickly complete the opening and closing action, improve the efficiency of tool storage and retrieval, and reduce the operation time. Under the elastic force of the spring 4, the knife claw 3 enters the open state and remains in the open state before the next tool is put in, without the need for an extra maintenance mechanism, which significantly improves the work efficiency. In addition, the realization of the knife claw structure action of the present invention can be driven by the movement of the tool, so that the knife claw structure itself does not need an additional power source, thereby reducing the components required for the structure and reducing the production cost.

[0059] The knife claw structure for placing the knife magazine horizontally also includes a locking mechanism 6. The locking mechanism 6 includes: a fixed seat 61, which is installed on the bottom plate 21, and a guide rod 61a is installed on the fixed seat 61; Figure 3 , Figure 4 and Figure 7 As shown, the fixing seat 61 is installed on the base plate 21 .

[0060] The locking pin 62 is mounted on the knife claw 3; Figure 4 , Fig. 9 and Fig.10 As shown, the locking pin 62 is installed on the knife claw 3, and is used to lock the position of the knife claw 3 when clamping the tool, ensuring that the knife claw 3 remains stable in the clamping state without accidental movement or swinging, thereby reducing the risk of the tool falling during the operation of the tool magazine.

[0061] The locking hook 63 is provided with a guide hole 63a through which the guide rod 61a passes, and the locking hook 63 can move along the axis direction of the guide rod 61a; Figure 4 , Figure 7 As shown, the locking hook 63 hooks the locking pin 62 under the action of the locking spring 64 and provides a force pointing to the direction of the tool magazine, so that the knife claw 3 is in a locked state. The guide hole 63a on the locking hook 63 is used to pass the guide rod 61a. The existence of the guide rod 61a can ensure that the locking hook 63 moves smoothly along the predetermined track during the movement. As an important part of the locking mechanism 6, the locking hook 63 locks or unlocks the locking mechanism 6 by moving along the direction of the guide rod 61a.

[0062] Locking spring 64, such as Figure 4 , Figure 7As shown, it is compressed between the fixing seat 61 and the locking hook 63, and the locking hook 63 is pushed to move along the direction of the guide rod 61a by the elastic force, thereby realizing the automatic locking of the locking mechanism 6. When the locking mechanism 6 is in the locked state, the elastic force of the locking spring 64 keeps the locking hook 63 in the locked position, ensuring that the knife claw 3 and the knife are stable and immobile during the movement process.

[0063] Push rod 65, such as Figure 1 , Fig. 9 and Fig.10 As shown, the locking mechanism 6 is used to open or close the locking mechanism 6. By pushing or retracting the push rod 65, the movement of the locking hook 63 can be achieved, thereby controlling the compression state of the locking spring 64 to achieve the purpose of locking or unlocking the knife claw 3. The pushing action of the push rod 65 converts the externally applied force into the movement of the locking hook 63, achieving the locking or unlocking operation, ensuring that the tool can be stably fixed or released when needed.

[0064] When the locking mechanism 6 is in the locked state, Figure 2 and Figure 4 As shown, the push rod 65 is retracted toward the tool magazine, and the locking spring 64 pushes the locking hook 63 to move toward the tool magazine, so that the locking hook 63 contacts and fixes the locking pin 62, thereby locking the knife claw 3. The retraction of the push rod 65 is controlled by a mechanical or pneumatic device, which realizes the automation of the locking process, reduces the error and work intensity of manual operation, and improves work efficiency. The retraction of the push rod 65 causes the locking spring 64 to push the locking hook 63 to lock the knife claw 3, ensuring that the tool will not fall due to looseness during movement, thereby improving the safety of operation. The locking spring 64 continues to provide elastic force when the locking mechanism 6 is not unlocked, ensuring that the locking hook 63 is firmly locked in the direction of the tool magazine, and can remain locked even when subjected to vibration or impact, thereby enhancing the reliability of the system.

[0065] When the locking mechanism 6 is opened, Fig. 9 and Fig.10 As shown, the push rod 65 extends away from the tool magazine, driving the locking hook 63 to move away from the tool magazine, so that the locking hook 63 is separated from the locking pin 62, thereby releasing the lock on the knife claw 3 and allowing the knife claw 3 to move freely. Unlocking can be achieved by extending the push rod 65, which is simple and convenient to operate, reducing the complexity of operation and work intensity, and improving work efficiency.

[0066] like Figure 2 , Fig. 9 and Fig.10As shown, the contact surfaces of the push rod 65 and the locking hook 63 are both planes, ensuring stable contact between the two and avoiding uneven force or sliding caused by uneven contact surfaces. At the same time, the plane contact design allows the push rod 65 to accurately control its movement direction and position when pushing or retracting the locking hook 63, ensuring the accuracy of the locking or unlocking operation. Planar contact reduces local stress concentration between contact surfaces, reduces wear and loss, increases the service life of the push rod 65 and the locking hook 63, and reduces maintenance frequency and cost.

[0067] The push rod 65 is preferably a tubular structure, such as Figure 1 As shown, a V-shaped exhaust groove is formed on the push rod 65, so that the push rod 65 can be sleeved on the guide rod 61a. The V-shaped exhaust groove can reduce the resistance of the internal air during the movement of the push rod 65 along the guide rod 61a, so that the push rod 65 moves more smoothly. The push rod 65 is sleeved on the guide rod 61a to ensure the linear motion path of the push rod 65, avoid operational errors caused by the deviation of the push rod 65, and increase the accuracy and reliability of the system.

[0068] like Figure 8 As shown, a directional column 41 for the spring 4 to be mounted is installed in the slot 33, and the directional column 41 is a bolt screwed into the knife claw 3. The purpose of this design is to ensure that the spring 4 is mounted in a stable position inside the knife claw 3 and will not be displaced due to vibration or vibration during operation. By fixing the directional column 41 on the knife claw 3, the spring 4 is limited, so that it can effectively play the function of the spring 4 and provide the required force. By designing the directional column 41 as a screw bolt structure, the height of the directional column 41 can be adjusted, and the working state of the spring 4 can be better controlled.

[0069] Preferably, the rotating shaft 21a can pass through the top cover of the knife claw 3, and an oil injection hole can be provided to inject grease into the sliding groove 32. The rotating shaft 21a passes through the top cover of the knife claw 3 to ensure that the rotating shaft 21a is more stable. The rotating shaft 21a is also provided with an oil injection hole to inject grease into the sliding groove 32, which is convenient for lubricating the sliding groove 32 and related parts. The provision of the oil injection hole makes lubrication maintenance simpler and more efficient.

[0070] like Figure 1 , Figure 2 As shown, the upper cover 22 is provided with a positioning key 22a corresponding to the tool groove, which can ensure that the tool is always in the correct position during the clamping process and prevent the tool from being offset or loosened during operation.

[0071] The positioning key 22a is preferably integrally formed with the upper cover 22 to avoid redundant assembly steps, simplify the production and assembly process, and improve manufacturing efficiency. The integrally formed positioning key 22a and the upper cover 22 form a whole, the structure is more stable, the connection weakness between the positioning key 22a and the upper cover 22 is reduced, and the overall strength and durability are improved.

[0072] The limiting device 5 is a screw that penetrates the upper cover 22 and is tightened on the bottom plate 21. Figure 1 and Figure 3 As shown, the penetration and tightening of the screws ensures the firm connection of the limiting device 5, increases the connection strength between the positioning key 22a and the upper cover 22, and reduces the positioning error caused by loose connection.

[0073] The present invention also provides a method for using the knife claw structure of the horizontal tool magazine, comprising the following steps:

[0074] S10: The push rod 65 pushes the locking hook 63 away from the tool magazine to unlock the locking mechanism 6; Fig. 9 As shown, the function of this step is to open the locking mechanism 6, allowing the knife claw 3 to take out or put down the knife. The locking hook 63 is pushed away from the knife magazine by the push rod 65, and the locking hook 63 no longer provides elastic force pointing to the direction of the knife magazine to the locking pin 62, so that the knife claw 3 can move forward. In this way, the knife claw 3 can take out or put down the knife.

[0075] S20: The tool taker drives the tool and the knife claw 3 to move away from the tool magazine, and the spring 4 moves from the side of the rotating shaft 21a close to the tool magazine to the side of the rotating shaft 21a away from the tool magazine. The elastic force of the spring 4 makes the knife claw 3 in an open state. Fig.10 As shown, the positioning device limits the opening angle of the knife claw 3. Specifically, the knife remover drives the tool and the knife claw 3 to move away from the tool magazine through the power device, and the tool and the knife claw 3 move together until the tool is separated from the knife claw 3. During the movement of the knife claw 3, the spring 4 moves from the side originally close to the tool magazine to the side of the rotating shaft 21a away from the tool magazine. At this time, the elastic force of the spring 4 causes the knife claw 3 to gradually open, thereby releasing the tool. At this time, the knife claw 3 is in an open state, and the tool can be easily taken out. During the opening process of the knife claw 3, the positioning device plays a role in limiting the opening angle of the knife claw 3, which can ensure that the tool remains in a stable position after being taken out and avoid excessive opening of the knife claw 3.

[0076] S30: The tool release device drives the tool to move toward the tool magazine, the tool contacts the bayonet 31, drives the tool claw 3 to move toward the tool magazine, and the spring 4 moves from the side of the rotating shaft 21a away from the tool magazine to the side of the rotating shaft 21a close to the tool magazine. The elastic force of the spring 4 causes the tool claw 3 to clamp the tool. Fig. 9Specifically, the tool release device drives the tool to move toward the tool magazine through the power device until the tool contacts the slot 31 of the tool claw 3. During the tool movement, when the tool contacts the slot 31 of the tool claw 3, the pushing action of the tool will continue to apply pressure to the tool claw 3, pushing the entire tool claw 3 to move toward the tool magazine.

[0077] S40: The push rod 65 is retracted toward the tool magazine, and the locking hook 63 moves toward the tool magazine under the elastic force of the locking spring 64, so that the locking hook 63 hooks the locking pin 62 and provides a force pointing toward the tool magazine, so that the knife claw 3 is in a locked state. Figure 4 As shown, the push rod 65 is retracted toward the tool magazine. During this process, the push rod 65 moves backward, reducing the pressure on the locking mechanism 6. Under the elastic force of the locking spring 64, the locking hook 63 moves toward the tool magazine and gradually approaches the position of the tool magazine. During the movement of the locking hook 63, the elastic force of the locking spring 64 provides the power for movement, ensuring that the locking hook 63 moves smoothly into place. After the locking hook 63 moves into place, contact is made between the locking hook 63 and the locking pin 62, and the locking hook 63 slides downward, hooks the locking pin 62, and applies a force directed toward the tool magazine to the knife claw 3. This process ensures that the knife claw 3 is in a locked state, and the tool is fixed on the knife claw 3 through the locking of the locking hook 63. The knife claw 3 is in a locked state, ensuring the safe fixation of the tool and avoiding accidental loosening or falling off during the working process.

[0078] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of 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 to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A knife claw structure for a flat tool magazine, characterized in that: include: A chain seat (1) connected to the tool magazine chain; A mounting seat (2) is fixedly mounted on the chain seat (1); it provides mounting space and vertical position limiting; the mounting seat (2) is composed of a bottom plate (21) and an upper cover (22); two rotating shafts (21a) are symmetrically arranged on both sides of the bottom plate (21); Two knife claws (3) are symmetrically arranged on both sides of the bottom plate (21); one end of each knife claw (3) is provided with a clamping opening (31) for grabbing a knife, and the other end is provided with a sliding groove (32) extending toward the knife magazine; each rotating shaft (21a) extends into a corresponding sliding groove (32); and a clamping groove (33) is also provided on the side of each knife claw (3); The spring (4) has two ends extending into the two clamping grooves (33) respectively, and the spring (4) is squeezed into a compressed state by the two knife claws (3); A limiting device (5) is fixedly mounted on the mounting seat (2) and is used to limit the opening angle of the knife claw (3); When the knife claw (3) moves and causes the end of the sliding slot (32) away from the knife magazine to stop at the rotating shaft (21a), the spring (4) stops at a side of the rotating shaft (21a) close to the knife magazine; When the knife claw (3) moves and causes the sliding slot (32) to stop at one end close to the knife magazine at the rotating shaft (21a), the spring (4) stops at a side of the rotating shaft (21a) away from the knife magazine; It also includes a locking mechanism (6), wherein the locking mechanism (6) includes: A fixing seat (61) is mounted on the bottom plate (21), and a guide rod (61a) is mounted on the fixing seat (61); A locking pin (62) mounted on the knife claw (3); A locking hook (63), wherein the locking hook (63) is provided with a guide hole (63a) through which the guide rod (61a) can pass, and the locking hook (63) moves along the axial direction of the guide rod (61a); A locking spring (64), wherein the locking spring (64) is compressed between the fixing seat (61) and the locking hook (63); A push rod (65) for opening or closing the locking mechanism (6); When the locking mechanism (6) is in a locked state, the push rod (65) is retracted toward the direction close to the tool magazine, and the locking spring (64) pushes the locking hook (63) to move toward the direction close to the tool magazine; When the locking mechanism (6) is opened, the push rod (65) extends in a direction away from the tool magazine, driving the locking hook (63) to move in a direction away from the tool magazine.

2. The tool claw structure for a horizontal tool magazine according to claim 1, characterized in that: The surfaces where the push rod (65) contacts the locking hook (63) are both planes.

3. The tool claw structure for a horizontal tool magazine according to claim 1, characterized in that: The push rod (65) is a tubular structure and is provided with a V-shaped exhaust groove (65a).

4. The tool claw structure for a horizontal tool magazine according to claim 1, characterized in that: A directional column (41) for the spring (4) to be mounted on is installed in the clamping groove (33), and the directional column (41) is a bolt screwed into the knife claw (3).

5. The tool claw structure for a horizontal tool magazine according to claim 1, characterized in that: The rotating shaft (21a) passes through the top cover of the knife claw (3) and is also provided with an oil injection hole for injecting grease into the sliding groove (32).

6. The tool claw structure for a horizontal tool magazine according to claim 1, characterized in that: The upper cover (22) is provided with a positioning key (22a) corresponding to the tool groove.

7. The tool claw structure for a horizontal tool magazine according to claim 6, characterized in that: The positioning key (22a) and the upper cover (22) are integrally formed.

8. The tool claw structure for a horizontal tool magazine according to claim 1, characterized in that: The limiting device (5) is a screw that passes through the upper cover (22) and is tightened on the bottom plate (21).

9. A method for using a knife claw structure for a horizontal tool magazine, characterized in that: The tool claw structure for a horizontal tool magazine as claimed in any one of claims 2 to 8 comprises: S10: The push rod (65) pushes the locking hook (63) away from the tool magazine to unlock the locking mechanism (6); S20: The tool remover drives the tool and the knife claw (3) to move away from the tool magazine, and the spring (4) moves from the side of the rotating shaft (21a) close to the tool magazine to the side of the rotating shaft (21a) away from the tool magazine. The elastic force of the spring (4) causes the knife claw (3) to be in an open state, and the positioning device limits the opening angle of the knife claw (3); S30: The tool release device drives the tool to move toward the tool magazine, the tool contacts the clamping port (31), drives the tool claw (3) to move toward the tool magazine, the spring (4) moves from the side of the rotating shaft (21a) away from the tool magazine to the side of the rotating shaft (21a) close to the tool magazine, and the elastic force of the spring (4) causes the tool claw (3) to clamp the tool; S40: The push rod (65) is retracted toward the tool magazine, and the locking hook (63) moves toward the tool magazine under the elastic force of the locking spring (64), so that the locking hook (63) hooks the locking pin (62) and provides a force pointing in the direction of the tool magazine, so that the knife claw (3) is in a locked state.

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