Movable cutter clamping structure

Abstract

The utility model belongs to the technical field of tool changing of numerical control machining centers, and particularly relates to a movable tool clamping structure which comprises a workbench. A mounting seat is slidably arranged in the support, a rotating groove is formed in the bottom of the mounting seat, a rotating seat is rotatably arranged in the rotating groove, a mounting groove is formed in the bottom of the rotating seat, clamping blocks are slidably arranged on the two sides in the mounting groove, positioning grooves are formed in the inner sides of the clamping blocks, sliding rods are fixedly mounted on the outer sides of the clamping blocks, and the sliding rods penetrate through the mounting groove. A rotary table is arranged on the upper portion of the supporting cylinder, a plurality of U-shaped grooves are formed in the edge of the outer side of the rotary table in an array mode, U-shaped protrusions are arranged in the U-shaped grooves, and tool fixers are installed in the U-shaped grooves in a sliding mode; by arranging the rotary table and the clamping block, the replacement process of the tool is simplified, the tool replacement efficiency is improved, stable clamping and accurate positioning of the tool in the machining process are ensured, and powerful guarantee is provided for efficient and accurate production of a numerical control machining center.

Description

Technical Field

[0001] The utility model relates to the technical field of tool changing in a numerical control machining center, in particular to a movable tool clamping structure. Background Art

[0002] In practical applications, mobile tool holding structures are widely used in various types of machining centers, CNC machine tools and other high-precision machining equipment. For example, in the fields of automotive parts processing, aerospace manufacturing, mold manufacturing, etc., mobile tool holding structures play an important role.

[0003] The principle of the mobile tool holding structure mainly involves how to firmly hold the tool and ensure that it can maintain high-precision positioning and stable cutting during the machining process.

[0004] The tool changing process of a traditional movable tool clamping structure may be relatively complicated and include multiple steps, which not only increases the difficulty of operation but also reduces the efficiency of tool changing; therefore, a movable tool clamping structure is proposed to address the above problems. Summary of the invention

[0005] In order to make up for the shortcomings of the prior art, the tool changing process of the traditional mobile tool clamping structure may be relatively complicated, including multiple steps, which not only increases the difficulty of operation but also reduces the tool changing efficiency. The utility model proposes a mobile tool clamping structure.

[0006] The cam is provided with a plurality of support arms at two ends of the support arm, and a plurality of support arms are provided at the support arm, and a plurality of support arms are provided at the support arm, and a plurality of support arms are provided at the plurality of support arms. The U-shaped grooves are provided with a plurality of U-shaped grooves, and the U-shaped grooves are provided with a plurality of U-shaped grooves. The tool holder is slidably mounted in the U-shaped grooves. The bottom of the turntable is provided with a circular groove. The turntable is rotatably mounted on the upper part of the support cylinder, and a rotating shaft is fixedly mounted on the center of the bottom of the turntable. A fixing frame is provided at the lower end of the rotating shaft. The lower end of the rotating shaft is rotatably mounted in the fixing frame, and a first bevel gear is fixedly mounted on the fixing frame through the fixing frame. The fixing frame is fixedly mounted in the supporting cylinder. By arranging the turntable and the clamping block, the tool replacement process is simplified, the tool replacement efficiency is improved, and the stable clamping and precise positioning of the tool during the machining process are ensured, which provides a strong guarantee for the efficient and precise production of the CNC machining center.

[0007] Preferably, a moving motor is fixedly installed on one side of one end of the slide, and a first screw rod and a guide rod are respectively provided on both sides of the inside of the slide, both ends of the first screw rod are rotatably installed in the slide through bearings, and one end of the first screw rod is fixedly connected to the rotating shaft of the moving motor, a support arm on one side of the bracket is slidably installed on the first screw rod, both ends of the guide rod are fixedly installed in the slide, and a support arm on the other side of the bracket is slidably installed on the guide rod, and through the introduction of the moving motor, automatic movement of the bracket on the slide is realized without manual adjustment, which significantly improves the degree of automation and positioning accuracy in the tool changing process.

[0008] Preferably, a mounting hole is opened in the support arm on one side of the bracket, and a lifting motor is fixedly installed in the mounting hole. The rotating shaft of the lifting motor is fixedly connected to one end of the second screw rod. The upper end of the second screw rod passes through the bracket and is fixedly installed with a rotating wheel. The rotating wheels rotate through belts. By setting up a lifting motor, the mounting seat can realize precise vertical movement in the bracket, further improving the flexibility and accuracy of tool clamping.

[0009] Preferably, limit rods are fixedly installed on the bottom of both sides of the rotating seat, and the upper ends of the connecting plates are slidably installed on the limit rods. Springs are provided between the connecting plates and the bottom edges of the rotating seat and are sleeved on the limit rods. The combination of the limit rods and the springs provides a stable sliding track for the clamping block, and can play a buffering role when clamping or releasing the tool, thereby protecting the structural integrity of the clamping block and the rotating seat.

[0010] Preferably, a rotating motor is fixedly installed on one side of the lower end of the support tube, and the rotating shaft of the rotating motor passes through the support tube and extends to the inside of the support tube where a second bevel gear is fixedly installed. The first bevel gear and the second bevel gear are perpendicular to each other and meshing. The automatic rotation of the turntable is achieved by introducing the dynamic motor, making the tool selection and replacement process faster and more efficient.

[0011] Preferably, a protective shell is fixedly installed on the upper part of the other end of the workbench, a circular groove is opened on the upper part of the protective shell, the protective shell is arranged on the outer side of the turntable, and openings are opened on the edges of both sides. The setting of the protective shell provides necessary protection for the turntable and the tool holder, preventing debris or coolant generated during the processing from splashing onto important components, thereby extending the service life of the equipment.

[0012] The utility model is beneficial in that:

[0013] 1. The utility model starts the lifting motor to drive the second screw to rotate when the tool needs to be replaced during the machining process of the machine tool, lifts the tool above the workpiece, starts the moving motor to drive the first screw to rotate and drive the bracket to move toward the turntable, moves the tool to one side of the protective shell, starts the rotating motor, drives the turntable to rotate through the first bevel gear and the second bevel gear, rotates the empty U-shaped groove to the opening of the protective shell, starts the lifting motor, drives the tool holder to descend to the height of the turntable through the mounting seat, drives the bracket to move through the moving motor, slides the tool holder into the U-shaped groove, lifts the mounting seat, takes the tool holder out of the rotating seat and leaves it on the turntable, moves the tool to be replaced to the bottom of the rotating seat by rotating the turntable, starts the lifting motor, fixes the tool holder with the tool positioned and installed in the rotating seat, starts the moving motor, drives the tool holder to move out of the U-shaped groove of the turntable, completes the structural design of tool replacement, realizes the function of rapid tool replacement, solves the problem that the tool changing process of the traditional movable tool clamping structure may be relatively cumbersome, including multiple steps, which not only increases the difficulty of operation, but also reduces the tool changing efficiency, thereby improving the tool changing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model 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 of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a schematic diagram of the structure on one side of the tool clamping structure;

[0016] Figure 2 It is a schematic diagram of the structure of the other side of the tool clamping structure;

[0017] Figure 3 It is a schematic diagram of the clamping mechanism structure;

[0018] Figure 4 It is a schematic diagram of the cutter placement device cross-sectional structure;

[0019] Figure 5 This is a schematic diagram of the tool placement device structure.

[0020] In the figure: 1. workbench; 2. slide; 3. guide rod; 4. first screw rod; 5. moving motor; 6. bracket; 7. second screw rod; 8. lifting motor; 9. mounting seat; 10. rotating wheel; 11. belt; 12. rotating motor; 13. rotating seat; 14. clamping block; 15. sliding rod; 16. connecting plate; 17. limiting rod; 18. spring; 19. tool holder; 20. supporting cylinder; 21. turntable; 22. rotating shaft; 23. fixing frame; 24. first bevel gear; 25. rotating motor; 26. second bevel gear; 27. protective shell. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5As shown, a movable tool clamping structure comprises a workbench 1; a slide table 2 is fixedly installed on the upper part of one end of the workbench 1, a bracket 6 is slidably arranged in the slide table 2, through holes are opened at the lower ends of the support arms on both sides of the bracket 6, and one of the through holes is a threaded hole, and slide grooves are opened on the inner sides of the support arms on both sides of the bracket 6, and a first screw rod 4 is arranged in the slide groove, and both ends of the first screw rod 4 are rotatably installed in the bracket 6 through bearings, and a mounting seat 9 is slidably arranged in the bracket 6, and both ends of the mounting seat 9 are opened. Both ends of the mounting seat 9 are slidably installed on the first screw rod 4, a rotating motor 12 is fixedly installed in the mounting seat 9, a rotating groove is opened at the bottom of the mounting seat 9, and a rotating seat 13 is rotatably arranged in the rotating groove, the rotating shaft of the rotating motor 12 is fixedly connected to the top of the rotating seat 13, and a mounting groove is opened at the bottom of the rotating seat 13, and clamping blocks 14 are slidably arranged on both sides of the mounting groove, and the clamping block 1 4 are provided with positioning grooves on the inner side, and sliding rods 15 are fixedly installed on the outer side. The sliding rods 15 all penetrate the installation grooves and are slidably installed in the rotating seat 13. The outer ends of the sliding rods 15 are fixedly installed with connecting plates 16. One side of the upper end of the connecting plate 16 is provided with sliding holes. A support cylinder 20 is fixedly installed on one side of the workbench 1. A turntable 21 is provided on the upper part of the support cylinder 20. A plurality of U-shaped grooves are provided in an array on the outer edge of the bottom of the turntable 21. U-shaped protrusions are provided inside the U-shaped grooves. A tool holder 19 is slidably installed in the U-shaped grooves. A circular protrusion is provided at the bottom of the turntable 21. The turntable 21 is rotatably installed on the upper part of the support cylinder 20. A rotating shaft 22 is fixedly installed at the center of the bottom of the turntable 21. A fixing frame 23 is provided at the lower end of the rotating shaft 22. The lower end of the rotating shaft 22 is rotatably installed in the fixing frame 23, and a first bevel gear 24 is fixedly installed through the fixing frame 23. The fixing frame 23 is fixedly installed in the support cylinder 20.During operation, when the tool needs to be replaced during the machining process of the machine tool, the rotating motor 12 is turned off to stop the tool from machining the workpiece, and the lifting motor 8 is started at the same time. The mounting seat 9 is driven to rise through the second screw rod 7, and the rotating seat 13 is driven to rise through the mounting seat 9. The rotating seat 13 drives the clamping structure to rise, and the moving motor 5 is started to move the bracket 6 to one end of the slide 2 through the first screw rod 4, and the clamping structure is moved to the side of the protective shell 27 close to the slide 2. The lifting motor 8 is started to move the groove on the tool holder 19 fixed in the clamping structure to the same height as the turntable 21, and the tool holder 19 is slidably installed in the U-shaped groove on the edge of the turntable 21, and the lifting motor 8 is started to lift the clamp The tool holder 19 slides in the installation groove at the bottom of the rotating seat 13, slides out of the positioning groove of the clamping block 14, pushes the clamping block 14 to move to both sides in the installation groove, drives the slide bar 15 to slide, and the slide bar 15 drives the upper end of the connecting plate 16 to slide on the limit rod 17, and compresses the spring 18 at the same time. When the tool holder 19 completely slides out of the rotating seat 13, the clamping structure stops rising, the rotating motor 25 is started to rotate the turntable 21, and the tool holder 19 with the required tool fixed on the turntable 21 is moved to the bottom of the clamping structure, the lifting motor 8 is started to drive the clamping structure to descend, install it in the clamping structure, and then translate to take out the tool to complete the tool replacement. ;

[0023] A moving motor 5 is fixedly installed on one side of one end of the slide 2, and a first screw rod 4 and a guide rod 3 are respectively arranged on both sides of the inside of the slide 2. Both ends of the first screw rod 4 are rotatably installed in the slide 2 through bearings, and one end of the first screw rod 4 is fixedly connected to the rotating shaft of the moving motor 5. The support arm on one side of the bracket 6 is slidably installed on the first screw rod 4, and both ends of the guide rod 3 are fixedly installed in the slide 2, and the support arm on the other side of the bracket 6 is slidably installed on the guide rod 3; during operation, when the tool needs to be replaced during the machine tool processing, the moving motor 5 is started to drive the first screw rod 4 to rotate, and the first screw rod 4 drives one side of the bracket 6 to slide in the slide 2, and at the same time drives the other side of the bracket 6 to slide on the guide rod 3, so that the tool clamping structure is moved to one side of the turntable 21 for tool replacement.

[0024] A mounting hole is opened in the support arm on one side of the bracket 6, and a lifting motor 8 is fixedly installed in the mounting hole. The rotating shaft of the lifting motor 8 is fixedly connected to one end of the second screw rod 7. The upper end of the second screw rod 7 passes through the bracket 6 and is fixedly installed with a rotating wheel 10. The rotating wheels 10 rotate in coordination with each other through a belt 11. During operation, when the tool needs to be replaced during the machine tool processing, the lifting motor 8 is started to drive the second screw rod 7 to rotate, and the second screw rod 7 drives the rotating wheel 10 to rotate. The rotating wheel 10 drives another second screw rod 7 to rotate through the belt 11. The two second screw rods 7 simultaneously drive the two sides of the mounting seat 9 to slide in the bracket 6, driving the tool clamping structure to move up and down to complete the tool replacement.

[0025] The bottom of both sides of the rotating seat 13 are fixedly installed with limit rods 17, and the upper ends of the connecting plates 16 are slidably installed on the limit rods 17. Springs 18 are arranged between the connecting plates 16 and the bottom edges of the rotating seat 13 and are sleeved on the limit rods 17. When the tool needs to be replaced during the machining process of the machine tool, the tool holder 19 is slidably installed in the U-shaped groove on the edge of the turntable 21, and the lifting motor 8 is started to lift the clamping structure. The tool holder 19 slides in the installation groove at the bottom of the rotating seat 13 and slides out of the positioning groove of the clamping block 14, pushing The clamping block 14 moves to both sides in the installation groove, driving the sliding rod 15 to slide, and the sliding rod 15 drives the upper end of the connecting plate 16 to slide on the limiting rod 17, and at the same time compresses the spring 18. When the tool holder 19 completely slides out of the rotating seat 13, the clamping structure stops rising, and the rotating motor 25 is started to rotate the turntable 21. The tool holder 19 with the required tool fixed on the turntable 21 is moved to the bottom of the clamping structure, and the lifting motor 8 is started to drive the clamping structure to descend and install it in the clamping structure. Then, the tool is taken out by translation to complete the tool replacement.

[0026] A rotating motor 25 is fixedly installed on one side of the lower end of the support cylinder 20, and the rotating shaft of the rotating motor 25 passes through the support cylinder 20 and extends to the inside of the support cylinder 20 where a second bevel gear 26 is fixedly installed. The first bevel gear 24 and the second bevel gear 26 are perpendicular to each other and meshed. During operation, when the tool needs to be replaced during the machine tool processing, the rotating motor 25 is started to drive the second bevel gear 26 to rotate, and the second bevel gear 26 drives the rotating shaft 22 to rotate through the first bevel gear 24, and the rotating shaft 22 drives the turntable 21 to rotate inside the upper end of the support cylinder 20, so that the required tool is quickly moved to the replacement position.

[0027] A protective shell 27 is fixedly installed on the upper part of the other end of the workbench 1, and a circular groove is opened on the upper part of the protective shell 27. The protective shell 27 is arranged on the outer side of the turntable 21, and openings are opened on the edges of both sides; when working, when the tool needs to be replaced during the machine tool processing, the turntable 21 rotates, and the tool to be replaced on the turntable 21 is moved to the opening position of the protective shell 27 close to one side of the slide 2, and the tool is replaced at the opening. The opening on the other side of the protective shell 27 is used to check and update the worn tool.

[0028] Working principle: when the tool needs to be replaced during the machine tool processing, the rotating motor 12 is turned off to stop the tool from processing the workpiece, and the lifting motor 8 is started at the same time. The mounting seat 9 is driven to rise through the second screw rod 7, and the rotating seat 13 is driven to rise through the mounting seat 9. The rotating seat 13 drives the clamping structure to rise, and the moving motor 5 is started to move the bracket 6 to one end of the slide 2 through the first screw rod 4, and the clamping structure is moved to the side of the protective shell 27 close to the slide 2. The lifting motor 8 is started to move the groove on the tool holder 19 fixed in the clamping structure to the same height as the turntable 21, and the tool holder 19 is slidably installed in the U-shaped groove on the edge of the turntable 21. The lifting motor 8 is started to lift the clamping structure, and the tool holder 19 is on the rotating seat 1 3 slides in the bottom installation groove, slides out of the positioning groove of the clamping block 14, pushes the clamping block 14 to move to both sides in the installation groove, drives the slide bar 15 to slide, and the slide bar 15 drives the upper end of the connecting plate 16 to slide on the limit rod 17, and compresses the spring 18 at the same time. When the tool holder 19 completely slides out of the rotating seat 13, the clamping structure stops rising, and the rotating motor 25 is started to rotate the turntable 21, and the tool holder 19 fixedly installed with the required tool placed on the turntable 21 is moved to the bottom of the clamping structure, and the lifting motor 8 is started to drive the clamping structure to descend and install it in the clamping structure, and then the tool is taken out by translation to complete the tool replacement, and then the device is moved above the workpiece, and the rotating motor 12 is started to drive the tool to rotate, and the workpiece is processed.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A movable tool clamping structure, characterized in that: The workbench (1) comprises a workbench (1); a slide (2) is fixedly mounted on the upper part of one end of the workbench (1); a bracket (6) is slidably arranged in the slide (2); through holes are provided at the lower ends of the support arms on both sides of the bracket (6), and one of the through holes is a threaded hole; a slide groove is provided on the inner side of the support arms on both sides of the bracket (6); a second screw rod (7) is provided in the slide groove; both ends of the second screw rod (7) are rotatably mounted in the bracket (6) through bearings; a mounting seat (9) is slidably arranged in the bracket (6); the mounting seat (9) has threaded holes at both ends, both ends of the mounting seat (9) are slidably mounted on the second screw rod (7), a rotating motor (12) is fixedly mounted in the mounting seat (9), a rotating groove is formed at the bottom of the mounting seat (9), a rotating seat (13) is rotatably arranged in the rotating groove, a rotating shaft of the rotating motor (12) is fixedly connected to the top of the rotating seat (13), a mounting groove is formed at the bottom of the rotating seat (13), clamping blocks (14) are slidably arranged on both sides of the mounting groove, and positioning blocks (14) are formed on the inner side of the clamping blocks (14) The workbench (1) is provided with a support tube (20) fixedly mounted on one side of the workbench (1), and a turntable (21) is arranged on the upper part of the support tube (20). The turntable (21) is provided with a plurality of U-shaped grooves in an array on the outer edge of the bottom, and a U-shaped protrusion is arranged inside the U-shaped groove. A tool holder (19) is slidably mounted in the groove, a circular protrusion is provided at the bottom of the turntable (21), the turntable (21) is rotatably mounted on the upper part of the support tube (20), a rotating shaft (22) is fixedly mounted at the center of the bottom of the turntable (21), a fixing frame (23) is provided at the lower end of the rotating shaft (22), the lower end of the rotating shaft (22) is rotatably mounted in the fixing frame (23), and a first bevel gear (24) is fixedly mounted through the fixing frame (23), and the fixing frame (23) is fixedly mounted in the support tube (20).

2. A movable tool clamping structure according to claim 1, characterized in that: A moving motor (5) is fixedly mounted on one side of one end of the slide (2), and a first screw rod (4) and a guide rod (3) are respectively arranged on both sides of the slide (2), and both ends of the first screw rod (4) are rotatably mounted in the slide (2) through bearings, and one end of the first screw rod (4) is fixedly connected to the rotating shaft of the moving motor (5), a support arm on one side of the bracket (6) is slidably mounted on the first screw rod (4), and both ends of the guide rod (3) are fixedly mounted in the slide (2), and a support arm on the other side of the bracket (6) is slidably mounted on the guide rod (3).

3. The movable tool clamping structure according to claim 1, characterized in that: A mounting hole is formed in a support arm on one side of the bracket (6), and a lifting motor (8) is fixedly mounted in the mounting hole. The rotating shaft of the lifting motor (8) is fixedly connected to one end of a second screw rod (7). The upper end of the second screw rod (7) passes through the bracket (6) and is fixedly mounted with a rotating wheel (10). The rotating wheels (10) rotate in coordination with each other via a belt (11).

4. The movable tool clamping structure according to claim 1, characterized in that: Limit rods (17) are fixedly mounted on the bottoms of both sides of the rotating seat (13), the upper ends of the connecting plates (16) are slidably mounted on the limit rods (17), and springs (18) are provided between the connecting plates (16) and the bottom edges of the rotating seat (13) and are sleeved on the limit rods (17).

5. The movable tool clamping structure according to claim 1, characterized in that: A rotating motor (25) is fixedly mounted on one side of the lower end of the support tube (20); a rotating shaft of the rotating motor (25) passes through the support tube (20) and extends to the inside of the support tube (20) where a second bevel gear (26) is fixedly mounted; the first bevel gear (24) and the second bevel gear (26) are perpendicular to each other and mesh with each other.

6. The movable tool clamping structure according to claim 1, characterized in that: A protective shell (27) is fixedly mounted on the upper portion of the other end of the workbench (1), a circular groove is provided on the upper portion of the protective shell (27), the protective shell (27) is arranged outside the turntable (21), and openings are provided on both side edges.

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