Push-out type tool claw chain type tool magazine

Abstract

The utility model relates to a push-out type cutter claw chain type tool magazine which is provided with a chain rotating around a tool magazine body, cutter claws for clamping cutter handles are installed on the periphery of the chain at intervals, and a cutter arm is arranged on the side of the tool magazine body. The tool magazine body is provided with a push-type broach mechanism, the push-type broach mechanism is provided with a broach sleeve capable of pushing out a broach handle clamped by the broach claw towards the broach arm, a guide sleeve inserted into an inner hole of the broach handle in a clearance mode is fixed in the broach sleeve, a positioning sleeve is arranged on the lower portion of an inner hole of the guide sleeve, and at least three through holes evenly distributed in the circumferential direction are formed in the outer wall of the lower end of the guide sleeve. A steel ball is arranged on the periphery of the lower portion of the positioning sleeve, a compression spring is arranged on the upper end face of the positioning sleeve, and when the compression spring compresses the positioning sleeve to extrude the steel ball out of the through hole, the steel ball abuts against a groove in the upper end of the inner hole of the cutter handle to reversely clamp the cutter handle. According to the utility model, the knife handle clamped by the knife claw is pushed out towards the knife arm through the knife pushing mechanism, so that the knife arm can clamp the knife handle to change the knife only through translation, the space height of the installation of the tool magazine is reduced, and the use in occasions with lower heights is met.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent manufacturing, in particular to a push-out type claw chain tool magazine. Background Technique

[0002] With the increasing popularity of automated machine tools, the corresponding machine tool tool magazines have been widely used. Such as disc tool magazines, turret tool magazines, linear tool magazines, etc. However, the capacity of these tool magazines is limited and the types of tools are few, making it difficult to meet the processing range requirements of large horizontal machine tools.

[0003] For some large horizontal machine tools, since the distance between the spindle center and the column surface is relatively far, the tool magazines with the above structures are not conducive to improving the machining efficiency of the machine tools. Therefore, a chain tool magazine suitable for long-distance transmission has emerged.

[0004] In the existing chain tool magazine structure, generally, the tool arm rotates and rises above the tool shank and then descends to grasp the tool shank, and then rotates to send the tool shank to the tool changing device. Since during this process, the tool arm needs to rise above the tool shank, this requires a relatively high height for the installation space of the tool magazine, resulting in inapplicability in some special occasions with a relatively low height and insufficient adaptability range. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is: in order to overcome the deficiencies in the prior art, the utility model provides a push-out type claw chain tool magazine that can meet the use in occasions with limited space height.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a push-out type claw chain tool magazine, including a base, a tool magazine body is installed on the base, a chain that makes a rotary motion around the tool magazine body is installed on the tool magazine body, tool claws are installed at intervals on the outer circumference of the chain, and the upper end of the tool shank used for tool changing is clamped in the tool claws; a tool arm seat is provided at a certain distance from the tool magazine body, and a tool arm that rotates and positions between the tool claws and the tool changing device to transfer the tool shank is provided on the tool arm seat; a tool pushing mechanism is provided on the tool magazine body, the tool pushing mechanism has a tool sleeve that can push the tool shank clamped by the tool claws towards the tool arm direction, a guide sleeve that can be inserted into the inner hole of the tool shank with a gap is fixed in the tool sleeve, a positioning sleeve is provided at the lower part of the inner hole of the guide sleeve, at least three through holes that are circumferentially evenly distributed are opened on the outer wall at the lower end of the guide sleeve, steel balls corresponding to the positions of the through holes are provided on the outer circumference at the lower part of the positioning sleeve, and a compression spring is provided between the upper end surface of the positioning sleeve and the upper end surface of the inner hole of the guide sleeve. When the compression spring compresses the positioning sleeve to squeeze the steel balls out of the through holes, the steel balls press against the groove at the upper end of the inner hole of the tool shank to clamp the tool shank in the reverse direction.

[0007] Preferably, an annular arc groove is provided on the outer circumference at the lower part of the positioning sleeve, and the steel balls are circumferentially evenly distributed in the annular arc groove, so that the steel balls are clamped between the annular arc groove and the through holes at the lower end of the guide sleeve.

[0008] Specifically, the push - knife mechanism includes a mounting seat fixed on the tool magazine body. A first cylinder is fixed on the mounting seat. A connecting bracket that is slidably matched with the mounting seat is fixedly connected to the piston rod of the first cylinder. A connecting plate that can move up and down is provided on the front end face of the connecting bracket. The tool sleeve is fixed to the front end face of the connecting plate. In this way, the tool sleeve can be pushed to move by the action of the first cylinder, and the tool handle can be pushed towards the tool arm direction.

[0009] Further, a second cylinder is fixed on the upper end face of the connecting bracket. A connecting block is fixed to the piston rod of the second cylinder. The connecting block is fixed to the side face of the connecting plate to realize the up - and - down movement of the tool sleeve. In this way, when the tool sleeve descends, the steel balls can clamp the tool handle in the reverse direction, and when the tool sleeve ascends, the steel balls are separated from the tool handle.

[0010] Furthermore, a bearing box is slidably provided on the tool arm seat. A gear is rotatably installed in the bearing box. A turntable is fixedly connected to the upper end face of the gear. A rotating shaft is fixed at the center of the turntable. The tool arm is fixed to the upper end of the rotating shaft. Claws that can be clamped on the neck of the tool handle are respectively installed at both ends of the tool arm. The tool arm can be rotated and displaced between the tool claws and the tool - changing device by the rotation of the gear.

[0011] Further, to realize the rotation of the gear, a connecting sleeve is fixed to the rear end face of the bearing box. A third cylinder is installed on the rear end face of the connecting sleeve. The piston rod of the third cylinder is fixedly connected to a rack. The rack extends into the bearing box through the connecting sleeve and meshes with the gear for transmission.

[0012] Further, a fourth cylinder is installed on the tool arm seat. The piston rod of the fourth cylinder is fixedly connected to the side face of the bearing box to drive the bearing box to move back and forth. When tool changing is required, the tool arm can be driven by the fourth cylinder to move towards the tool claw direction.

[0013] The beneficial effect of the present utility model is that: by setting the push - knife mechanism, the tool handle clamped by the tool claws is pushed towards the tool arm direction. In this way, the tool arm only needs to translate to clamp the tool handle, thereby reducing the space height of the installation of the tool magazine and meeting the use requirements of some special occasions with lower height. Description of the Drawings

[0014] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0015] Figure 1 is the overall structural schematic diagram of the present utility model.

[0016] Figure 2 is the structural schematic diagram of the push - knife mechanism of the present utility model.

[0017] Figure 3 is the cross - sectional structural schematic diagram of the tool sleeve of the present utility model.

[0018] Figure 4 It is a schematic structural view of the guide sleeve described in the present utility model.

[0019] Figure 5 It is a schematic structural view of the positioning sleeve described in the present utility model.

[0020] Figure 6 It is a schematic internal structural view of the bearing housing described in the present utility model.

[0021] In the figure: 1. Base, 2. Tool magazine body, 3. Chain, 4. Tool claw, 5. Tool shank, 6. Tool arm seat, 7. Tool arm, 8. Tool sleeve, 9. Guide sleeve, 9-1. Through hole, 10. Positioning sleeve, 10-1. Annular arc groove, 11. Steel ball, 12. Compression spring, 13. Mounting seat, 14. First cylinder, 15. Connecting bracket, 16. Connecting plate, 17. Second cylinder, 18. Connecting block, 19. Bearing housing, 20. Gear, 21. Turntable, 22. Rotating shaft, 23. Claw, 24. Connecting sleeve, 25. Third cylinder, 26. Rack, 27. Fourth cylinder. Specific embodiments

[0022] Now, the present utility model will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0023] As Figure 1 shown, a push-type tool claw chain tool magazine includes a base 1, a tool magazine body 2 is installed on the base 1, a chain 3 that makes a rotary motion is installed around the tool magazine body 2, a reduction motor is installed on the bottom surface of the base 1, and the reduction motor drives a driving wheel to drive the chain 3 to make a rotary motion around the tool magazine body 2. Tool claws 4 are arranged at intervals on the outer periphery of the chain 3, and the upper end of the tool shank 5 used for tool change is clamped in the tool claws 4.

[0024] A tool pushing mechanism is provided on the tool magazine body 2. As Figures 2 to 5 shown, the tool pushing mechanism includes a mounting seat 13 fixed on the tool magazine body 2. A first cylinder 14 is fixed on a vertical plate of the mounting seat 13. A connecting bracket 15 is fixed on the piston rod of the first cylinder 14. The connecting bracket 15 is slidably matched with the upper plane of the mounting seat 13 through a slider guide rail structure. The first cylinder 14 drives the connecting bracket 15 to move back and forth; a connecting plate 16 is provided on the front end surface of the connecting bracket 15. The connecting plate 16 is slidably matched with the connecting bracket 15 through a slider guide rail structure; a second cylinder 17 is fixed on the upper end surface of the connecting bracket 15. A connecting block 18 is fixed on the piston rod of the second cylinder 17. The connecting block 18 is fixed to the side surface of the connecting plate 16. The second cylinder 17 drives the connecting plate 16 to move up and down through the connecting block 18.

[0025] A tool holder 8 is fixed to the front end face of the connecting plate 16. The bottom of the tool holder 8 is open, and the upper end of the tool shank 5 extends into the tool holder 8 through this opening. The tool claw 4 is located below the bottom surface of the tool holder 8 and clamps the tool shank 5.

[0026] A guide sleeve 9 is provided in the tool holder 8. The upper end of the guide sleeve 9 is fixed to the tool holder 8, and the lower end of the guide sleeve 9 extends into the inner hole of the upper end of the tool shank 5 with a gap. A positioning sleeve 10 is provided in the lower part of the inner hole of the guide sleeve 9. Three through holes 9-1 are circumferentially and uniformly arranged on the outer wall of the lower end of the guide sleeve 9. The outer circumference of the lower part of the positioning sleeve 10 has an annular arc groove 10-1. Steel balls 11 corresponding to the positions of the through holes 9-1 are circumferentially and uniformly arranged on the inner circumference of the annular arc groove 10-1. A compression spring 12 is provided between the upper end face of the positioning sleeve 10 and the upper end face of the inner hole of the guide sleeve 9. When the compression spring 12 presses the positioning sleeve 10, the steel balls 11 are extruded and protrude outside the through holes 9-1, and are pressed against the groove provided in the upper end of the inner hole of the tool shank 5, thereby clamping the tool shank 5 in the reverse direction.

[0027] As Figure 1 、 Figure 6 shown, a tool arm seat 6 is provided at a certain distance from the tool magazine body 2. A bearing box 19 is provided on the tool arm seat 6. The bearing box 19 is slidably matched with the upper end face of the tool arm seat 6 through a slider guide rail structure. A fourth cylinder 27 is installed on the tool arm seat 6. The piston rod of the fourth cylinder 27 is fixedly connected to the side face of the bearing box 19 to drive the bearing box 19 to move back and forth.

[0028] A gear 20 is rotatably installed in the bearing box 19 through two bearings, upper and lower. The upper end face of the gear 20 extends out of the upper end face of the bearing box 19 and is fixedly connected to a turntable 21. A rotating shaft 22 is fixed at the center of the turntable 21. A tool arm 7 is fixed to the upper end of the rotating shaft 22. Claws 23 that can clamp the neck of the tool shank 5 are respectively installed at both ends of the tool arm 7.

[0029] A connecting sleeve 24 is fixed to the rear end face of the bearing box 18. A third cylinder 25 is installed on the rear end face of the connecting sleeve 24. The piston rod of the third cylinder 25 is fixedly connected to a rack 26. The rack 26 passes through the connecting sleeve 24 and extends into the bearing box 19 and is slidably matched with the side plate of the bearing box 18 through a slider guide rail structure. The rack 26 meshes with the gear 20 to drive the gear 20 to rotate. The tool arm 7 is driven to rotate by the rotation of the gear 20, so that the tool arm 7 is displaced between the tool claw 4 and the tool change device to transfer the tool shank 5.

[0030] When changing the tool, the chain 3 conveys the tool handle 5 right below the tool sleeve 8. The second cylinder 17 pushes the connecting plate 16 to descend. When the tool sleeve 8 fixed on the front end face of the connecting plate 16 descends synchronously, the lower end of the guide sleeve 9 extends into the inner hole of the upper end of the tool handle 5 with a gap. Under the action of the compression spring 12, the three steel balls 11 being extruded protrude outside the through hole 9-1, and the three steel balls 11 simultaneously press against the groove at the upper end of the inner hole of the tool handle 5, forming a reverse clamping on the tool handle 5. Then the first cylinder 14 acts, driving the connecting bracket 15 to move towards the tool arm 7 direction, so that the clamped tool handle 5 is separated from the tool claw 4 and pushed out. At this time, the fourth cylinder 27 acts, driving the bearing box 19 to move. When the tool arm 7 approaches the tool handle 5, the clamping claw 23 at the end of the tool arm 7 clamps on the neck of the tool handle 5. The second cylinder 17 acts again, driving the tool sleeve 8 to rise, so that the three steel balls 11 are separated from the reverse clamping on the tool handle 5. The first cylinder 14 pulls the tool sleeve 8 back to the original position. The fourth cylinder 27 pushes the bearing box 19 back to the original position. The third cylinder 25 acts, driving the tool arm 7 to rotate 180 degrees, so that one end of the tool arm 7 clamping the tool handle 5 turns to one side of the tool changing device, and the other end of the tool arm 7 faces the tool sleeve 8 direction, and the next tool changing operation is carried out.

[0031] Enlightened by the above ideal embodiments based on the present utility model, through the above description, relevant staff can completely make various changes and modifications within the scope not deviating from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A push-out type claw chain tool magazine, comprising a base (1), a tool magazine body (2) mounted on the base (1), a chain (3) mounted on the tool magazine body (2) for rotating around the tool magazine body (2), wherein: The outer periphery of the chain (3) is provided with knife claws (4) arranged at intervals, the upper end of a knife handle (5) used for tool changing is clamped in the knife claw (4), and a knife arm seat (6) is provided at a certain distance from the tool magazine body (2), and a knife arm (7) is provided on the knife arm seat (6) for rotating and exchanging positions between the knife claw (4) and the tool changing device to transfer the knife handle (5); The tool magazine body (2) is provided with a knife pushing mechanism, the knife pushing mechanism comprises a knife sleeve (8) which can push the knife handle (5) clamped by the knife claw (4) toward the knife arm (7), a guide sleeve (9) which can be inserted into the inner hole of the knife handle (5) with a gap is fixed in the knife sleeve (8), a positioning sleeve (10) is provided at the lower part of the inner hole of the guide sleeve (9), at least three through holes (9-1) evenly distributed in the circumferential direction are opened on the outer wall of the lower end of the guide sleeve (9), a steel ball (11) corresponding to the position of the through hole (9-1) is provided on the outer periphery of the lower part of the positioning sleeve (10), a compression spring (12) is provided between the upper end surface of the positioning sleeve (10) and the upper end surface of the inner hole of the guide sleeve (9), when the compression spring (12) presses the positioning sleeve (10) to squeeze the steel ball (11) out of the through hole (9-1), the steel ball (11) presses against the groove provided at the upper end of the inner hole of the knife handle (5) to clamp the knife handle (5) in the reverse direction.

2. The push-out claw chain tool magazine according to claim 1, characterized in that: The lower outer periphery of the positioning sleeve (10) is provided with an annular arc groove (10-1), and the steel balls (11) are evenly distributed in the annular arc groove (10-1) in the circumferential direction.

3. The push-out claw chain tool magazine according to claim 2, characterized in that: The knife pushing mechanism comprises a mounting seat (13) fixed on the tool magazine body (2), a first cylinder (14) fixed on the mounting seat (13), a connecting bracket (15) slidably matched with the mounting seat (13) fixedly connected to the piston rod of the first cylinder (14), a connecting plate (16) which can be lifted up and down is provided on the front end surface of the connecting bracket (15), and the knife sleeve (8) is fixed to the front end surface of the connecting plate (16).

4. The push-out claw chain tool magazine according to claim 3, characterized in that: A second cylinder (17) is fixed on the upper end surface of the connecting bracket (15), a connecting block (18) is fixed on the piston rod of the second cylinder (17), and the connecting block (18) is fixed to the side of the connecting plate (16) to achieve the up and down lifting of the knife sleeve (8).

5. The push-out claw chain tool magazine according to claim 1, characterized in that: A bearing box (19) is slidably provided on the knife arm seat (6), a gear (20) is rotatably installed in the bearing box (19), a turntable (21) is fixedly connected to the upper end surface of the gear (20), a rotating shaft (22) is fixed at the center of the turntable (21), the knife arm (7) is fixed to the upper end of the rotating shaft (22), and claws (23) that can be clamped on the neck of the knife handle (5) are respectively installed at both ends of the knife arm (7).

6. The push-out claw chain tool magazine according to claim 5, characterized in that: A connecting sleeve (24) is fixed on the rear end surface of the bearing box (19), a third cylinder (25) is installed on the rear end surface of the connecting sleeve (24), a rack (26) is fixedly connected to the piston rod of the third cylinder (25), and the rack (26) extends into the bearing box (19) through the connecting sleeve (24) and meshes with the gear (20) for transmission.

7. The push-out claw chain tool magazine according to claim 6, characterized in that: A fourth cylinder (27) is installed on the knife arm seat (6), and a piston rod of the fourth cylinder (27) is fixedly connected to the side of the bearing box (19) to drive the bearing box (19) to move forward and backward.

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