A multi-station tool magazine for horizontal machine tools

Abstract

The utility model discloses a multi-station tool magazine for a horizontal machine tool, comprising: a tool magazine body, a motor arranged on the tool magazine body, an output gear arranged on the output end of the motor, and a tool clamp chain surrounding the tool magazine body, wherein the tool magazine body is formed by splicing a plurality of tool magazine module plates, and hinges are arranged between adjacent tool magazine module plates. The utility model arranges hinges between adjacent tool magazine module plates so that the tool magazine body can be folded around the hinge position, thereby effectively reducing the floor space occupied by the tool magazine body, facilitating the transportation of the tool magazine body, reducing the occupation of the transportation space by the tool magazine body during transportation, and effectively reducing the transportation difficulty and the cost expenditure generated during transportation.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machining centers, in particular to a multi-station tool magazine of a horizontal machine tool. Background Art

[0002] In CNC machining equipment, in order to meet the needs of different machining processes, an automatic tool magazine is generally configured. The tool is clamped and fixed by the tool clamp module in the tool magazine. When the machining equipment needs to replace the tool, the tool clamp module holding the corresponding tool is moved to the tool changing position through the tool magazine to facilitate the spindle to change the tool. The tool clamp module configured on the existing tool magazine generally sets the tool clamp module on the chain link, and moves the chain under the transmission of the driving gear, so as to adjust the setting position of the tool clamp module, which is convenient for the CNC machining equipment to change the tool. However, for a larger tool magazine, a large number of tool clamp modules are required, so the chain links required are also large. Therefore, this setting method of the prior art will make the installation process very complicated, which will bring great inconvenience to production assembly and maintenance work.

[0003] At the same time, since the main structure of the tool magazine is large and all of them are integrated structures, during transportation, it is necessary to use multiple electric hoists and other lifting equipment for lifting, and use a transport vehicle with a larger cargo compartment for loading and transportation, which is costly and inconvenient to transport. In addition, if the tool magazine body is designed to be split, although it is relatively convenient for transportation, during assembly, if the modules of the tool magazine body are deviated during installation, it is easy to cause the chain to have a step difference or deviation during movement around the tool magazine body, which will have a great impact on the storage, transportation and replacement of the tool.

[0004] Therefore, the prior art has defects and needs to be improved. Utility Model Content

[0005] The utility model aims to overcome the deficiencies of the prior art and provide a multi-station tool magazine for a horizontal machine tool.

[0006] The technical solution of the utility model is as follows: a multi-station tool magazine for a horizontal machine tool is provided, comprising: a tool magazine body, a motor arranged on the tool magazine body, an output gear arranged on the output end of the motor, and a tool clamp chain surrounding the tool magazine body, wherein the tool magazine body is formed by splicing a plurality of tool magazine module plates, and hinges are arranged between adjacent tool magazine module plates;

[0007] The tool clamp chain includes a plurality of tool clamp modules connected to each other, and the tool clamp module includes: a tool clamp unit seat, clamping jaws hinged on both sides of the tool clamp unit seat, and connecting ears arranged on both sides of the tool clamp unit seat. Adjacent tool clamp unit seats are connected by staggered and overlapped connecting ears and connected through connecting pieces. A driving hole is arranged on one side of the tool clamp unit seat away from the clamping surface of the clamping jaws, and the output gear is engaged in the driving hole.

[0008] Furthermore, a locking mechanism is provided between adjacent tool magazine module plates, and the locking mechanism connects and fixes adjacent tool magazine module plates.

[0009] Furthermore, a positioning structure is provided at the joint surface of the adjacent tool magazine module plates, and the positioning structures between the adjacent tool magazine module plates are interlocked.

[0010] Furthermore, the connecting ears are equidistantly distributed on the side of the tool clamp unit seat in the vertical direction, and the gap between adjacent connecting ears is greater than or equal to the thickness of the connecting ears, in the gap between the connecting ears of adjacent tool clamp unit seats.

[0011] Furthermore, a clamping block is slidably provided on the tool clamp unit seat, and the two sides of the clamping block are respectively in contact with the clamping jaws on both sides of the tool clamp unit seat, and the clamping jaws are provided with C-shaped grooves corresponding to the clamping block, and the C-shaped grooves are included on the outer side of the clamping jaw block. The tool clamp unit seat is provided with a reset unit, and the reset unit is connected to the clamping jaw block or the clamping jaw.

[0012] Furthermore, the reset unit adopts a compression spring, which is arranged between the clamping jaw pressure block and the tool clamping unit seat, and the reset unit adopts a tension spring, which is arranged between the clamping jaws on both sides; the reset unit adopts a torsion spring, which is arranged at the hinge position between the clamping jaw and the tool clamping unit seat, one end of the torsion spring is connected to the clamping jaw, and the other end is connected to the tool clamping unit seat.

[0013] Furthermore, limiting grooves are respectively arranged at both ends of the C-shaped groove on the clamping jaws on both sides of the clamping jaw pressing block, and the two ends of the C-shaped groove are respectively embedded in the corresponding limiting grooves.

[0014] Furthermore, an ejector screw is screwed into one end of the tool clamp unit seat away from the clamping jaw, and the end of the ejector screw contacts the end surface of the clamping jaw pressing block.

[0015] Furthermore, the output gear adopts a wide tooth profile in which the width of the gear teeth is greater than the gap between the teeth, and the pitch of the output gear is 90-110 mm.

[0016] Furthermore, a movable groove is arranged on the tool magazine body corresponding to the motor, a movable mounting plate is movably arranged in the movable groove, and the motor is arranged on the movable mounting plate; and a plurality of limit plates are arranged on the side of the movable groove corresponding to the movable mounting plate.

[0017] By adopting the above scheme, the utility model sets hinges between adjacent tool magazine module plates so that the tool magazine body can be folded around the hinge position, thereby effectively reducing the footprint of the tool magazine body, facilitating the transportation of the tool magazine body, reducing the transportation space occupied by the tool magazine body during transportation, and effectively reducing the difficulty of transportation and the cost expenditure incurred during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 This is a schematic diagram of the structure of the tool holder module.

[0020] Figure 3 Schematic diagram of the structure of the clamp.

[0021] Figure 4 It is a schematic diagram of the structure of the output gear. DETAILED DESCRIPTION

[0022] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] See also Figure 1 The utility model provides a multi-station tool magazine for a horizontal machine tool, comprising: a tool magazine body 1, a motor 2 arranged on the tool magazine body 1, an output gear 3 arranged on the output end of the motor 2, and a tool clamp chain surrounding the tool magazine body 1, wherein the tool magazine body 1 is formed by splicing a plurality of tool magazine module plates 11, and hinges 12 are arranged between adjacent tool magazine module plates 11. By arranging hinges 12 between adjacent tool magazine module plates 11, the tool magazine body 1 can be folded around the hinge 12 position, thereby effectively reducing the floor space occupied by the tool magazine body 1, facilitating the transportation of the tool magazine body 1, reducing the occupation of the transportation space by the tool magazine body 1 during transportation, and effectively reducing the transportation difficulty and the cost expenditure generated during transportation.

[0024] In some embodiments, a locking mechanism is provided between adjacent tool magazine module plates 11, and the locking mechanism connects and fixes adjacent tool magazine module plates 11. In some embodiments, the locking mechanism uses a quick buckle, which is quickly connected by the quick buckle to achieve positioning between adjacent tool magazine modules 11, and can be locked and fixed by bolts or the like, thereby ensuring the stability of the connection state between the tool magazine module plates 11.

[0025] In some embodiments, a positioning structure is provided at the joint surface of the adjacent tool magazine module plates 11, and the positioning structures between the adjacent tool magazine module plates 11 are interlocked. The positioning structure adopts mutually interlocking protrusions and grooves, and the protrusions are embedded in the grooves, so as to realize the positioning between the adjacent tool magazine module plates 11, improve the assembly accuracy, and avoid affecting the stability of the running state of the tool clip chain due to deviation.

[0026] See also Figure 2 , Figure 3 The tool clamp chain includes a plurality of tool clamp modules 4 connected to each other. The tool clamp module 4 includes: a tool clamp unit seat 41, a clamping claw 42 hinged on both sides of the tool clamp unit seat 41, and connecting ears 411 arranged on both sides of the tool clamp unit seat 41. Adjacent tool clamp unit seats 41 are connected by staggering and overlapping the connecting ears 411 and connecting pieces 4111. A driving hole 412 is arranged on one side of the tool clamp unit seat 41 away from the clamping surface of the clamping claw 42, and the output gear 3 is engaged in the driving hole 412. During installation, the gear teeth 31 of the output gear 3 are embedded in the driving hole 412, and the connecting piece 4111 passes through the connecting ear 411, so as to realize the connection of adjacent tool clamp unit seats 41, connect and surround the tool clamp unit seat 41 and be compatible with the chain function, so as to facilitate the tool clamp unit seat 41 to be directly driven to move by the output gear 3, thereby reducing the number of components used in the tool magazine body 1 as a whole, saving costs, and facilitating the assembly and maintenance of the tool clamp module 41.

[0027] In some embodiments, the connecting ears 411 are equidistantly distributed on the side of the tool clamp unit seat 41 in the vertical direction, and the gap between adjacent connecting ears 411 is greater than or equal to the thickness of the connecting ears 411. The connecting ears 411 of adjacent tool clamp unit seats 41 are staggered to ensure that after the tool clamp unit seats 411 are connected and surrounded to form a tool clamp chain, the clamping surfaces of each group of tool clamp unit seats 41 are on the same plane, avoiding the deviation of the position of the clamping jaws 42 from affecting the tool change operation.

[0028] The connecting piece 4111 is made of pins or bolts, so as to ensure the stability of the connection state between adjacent tool clamp unit seats 41 while providing a rotation pair between adjacent tool clamp unit seats 41, which is convenient for moving along the edge of the tool magazine body 1 and turning along the arc edge of the tool magazine body 1.

[0029] Under normal conditions, the reset unit generates a thrust for the clamping block 43 or the clamping jaw 42, so that the clamping jaw 42 generates a clamping force, thereby clamping and fixing the tool 5. The front end of the clamping jaw 42 is an inclined surface inclined inward, and the clamping surface of the clamping jaw 42 is an arc-shaped surface. When the tool 5 is loaded, the outer side surface of the clamping part of the tool 5 contacts the inclined surface of the front end of the clamping jaw 42, and as the tool 5 moves toward the direction close to the tool clamping unit seat 41, the outer side surface of the tool 5 pushes the inclined surface, thereby pushing the clamping jaw 42 to rotate around the hinge position, thereby separating the clamping jaws 42 on both sides, making it easier for the tool 5 to enter the clamping part of the clamping jaw 42. After the tool 5 completely enters the clamping position of the clamping jaw 42, the clamping jaw 42 clamps and fixes the tool 5 under the push of the reset unit.

[0030] When the tool 5 needs to be taken out, the tool 5 is pulled outward, and the outer side surface of the clamping portion of the tool 5 moves along the arc surface of the clamping surface of the clamping jaw 42, and the clamping jaw 42 is opened outward to facilitate the removal of the tool 5. When the tool 5 is completely separated from the clamping surface of the clamping jaw 42, the thrust exerted by the tool 5 on the clamping jaw 42 is removed, and the clamping jaw 42 is reset under the push of the reset unit.

[0031] During the process of opening and closing the jaws 42, the C-shaped groove 421 of the jaws 42 cooperates with the tool clamp pressure block 43 and generates mutual thrust, thereby ensuring that the jaws 42 on both sides can move symmetrically and synchronously, avoiding the stability of clamping and fixing the tool 5 due to differential movement of the jaws 42 on both sides.

[0032] The reset unit continuously generates thrust, so that the clamping jaw 42 rotates around the hinge position, thereby clamping and fixing the tool 5. Compared with clamping by the elasticity of the material of the clamping jaw 42 itself, the reset unit provides thrust, which can effectively ensure the stability of the clamping state, and the clamping jaw 42 will not affect the clamping force due to fatigue during long-term operation. In addition, if the reset unit itself is fatigued and aged, only the reset unit can be replaced, and the maintenance cost is low.

[0033] In some embodiments, the reset unit adopts a compression spring, which is arranged between the clamping jaw pressing block 43 and the tool clamping unit seat 41. The compression spring is used to continuously generate thrust on the clamping jaw pressing block 43, so that the side wall of the C-shaped groove 421 of the clamping jaw 42 is pushed by the clamping jaw pressing block 43, so that the clamping jaw 42 rotates around the hinge position, thereby clamping and fixing the tool 5.

[0034] In some embodiments, the reset unit is a tension spring, which is arranged between the clamping jaws 42 on both sides. The tension spring continuously generates an inward pulling force on the clamping jaws 42, thereby clamping and fixing the tool 5.

[0035] In some embodiments, the reset unit is a torsion spring, which is arranged at the hinged position between the clamping jaw 42 and the tool clamping unit seat 41, one end of the torsion spring is connected to the clamping jaw 42, and the other end is connected to the tool clamping unit seat 41. The torsion spring generates a torsion force, thereby driving the clamping jaw 42 to continuously clamp inward, thereby clamping and fixing the tool 5.

[0036] In some embodiments, both sides of the clamping jaw block 43 correspond to the two ends of the C-shaped groove 421 on the clamping jaw 42, and the two ends of the C-shaped groove 421 are respectively movably embedded in the corresponding limiting grooves 431. When the clamping jaw block 43 and the clamping jaw 42 move relatively to the limit position, one end of the C-shaped groove 421 will be embedded in the limiting groove 431 of the clamping jaw block 43, so as to prevent the clamping jaw 42 from shaking and affecting the clamping effect of the tool 5, thereby improving the stability of clamping the tool 5.

[0037] In some embodiments, an ejector screw 44 is screwed into one end of the tool clamp unit seat 41 away from the clamping jaw 42, and the end of the ejector screw 44 contacts the end surface of the clamping jaw pressing block 43. By rotating the ejector screw 44, the ejector screw 44 pushes the clamping jaw pressing block 43 to move forward, so that the angle between the clamping jaws 42 on both sides in the clamping state can be adjusted to meet the clamping requirements of tools 5 of different specifications.

[0038] See also Figure 4 In some embodiments, the output gear 3 adopts a wide tooth profile in which the width of the gear teeth 31 is greater than the gap between the teeth 32, and the pitch of the output gear 3 is 90-110 mm. Preferably, in some embodiments, the pitch of the output gear 3 and the pitch between adjacent tool holder unit seats 41 are both 100 mm, so as to ensure that a safe distance is set between adjacent tool holder modules 41, so as to avoid mutual interference or collision between tool holder modules 41 while satisfying the transportation of tool holder modules 41, and meet the safety requirements during tool change.

[0039] In some embodiments, the meshing position of the output gear 3 and the driving tool clamp unit seat 41 is set at the position corresponding to the straight section of the tool magazine body 1. By setting the meshing position of the output gear 3 and the tool clamp unit seat 41 at the straight section of the tool magazine body 1, while satisfying the need to drive the tool clamp unit seat 41, since the number of tool clamp unit seats 41 meshing at the same time is small, during the installation process, the tool clamp unit seat 41 is more conveniently sleeved on the output gear 3, thereby improving the installation and debugging efficiency of the overall equipment.

[0040] In some embodiments, a movable groove 13 is provided on the tool magazine body 1 corresponding to the motor 2, a movable mounting plate 14 is movably provided in the movable groove 13, and the motor 2 is provided on the movable mounting plate 14. By providing a movable movable mounting plate 14 and arranging the motor 2 on the movable mounting plate 14, during installation or maintenance, the position of the movable mounting plate 5 can be moved so that the output gear 3 is separated or meshed with the tool holder unit seat 41, thereby improving the efficiency of assembly and disassembly during installation and maintenance.

[0041] In some embodiments, a plurality of limit plates are provided on the movable groove 13 corresponding to the side of the movable mounting plate 14. The limit plates are used to limit and fix the side surfaces of the movable mounting plate 14, thereby fixing the movable mounting plate 14, thereby ensuring that the movable mounting plate 14 will not shift during operation, causing the output gear 3 of the motor 2 to be separated or offset from the tool holder unit seat 41, thereby ensuring the stability of the overall device during operation.

[0042] To sum up, the utility model sets hinges between adjacent tool magazine module plates so that the tool magazine body can be folded around the hinge position, thereby effectively reducing the footprint of the tool magazine body, facilitating the transportation of the tool magazine body, reducing the transportation space occupied by the tool magazine body during transportation, and effectively reducing the difficulty of transportation and the cost expenditure incurred during transportation.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-station tool magazine for a horizontal machine tool, characterized in that: include: A tool magazine body, a motor disposed on the tool magazine body, an output gear disposed on the output end of the motor, and a tool clamp chain surrounding the tool magazine body, wherein the tool magazine body is formed by splicing a plurality of tool magazine module plates, and hinges are disposed between adjacent tool magazine module plates; The tool clamp chain includes a plurality of tool clamp modules connected to each other, and the tool clamp module includes: a tool clamp unit seat, clamping jaws hinged on both sides of the tool clamp unit seat, and connecting ears arranged on both sides of the tool clamp unit seat. Adjacent tool clamp unit seats are connected by staggered and overlapped connecting ears and connected through connecting pieces. A driving hole is arranged on one side of the tool clamp unit seat away from the clamping surface of the clamping jaws, and the output gear is engaged in the driving hole.

2. The multi-station tool magazine for a horizontal machine tool according to claim 1, characterized in that: A locking mechanism is provided between adjacent tool magazine module plates, and the locking mechanism connects and fixes adjacent tool magazine module plates.

3. The multi-station tool magazine for a horizontal machine tool according to claim 1, characterized in that: Positioning structures are arranged at the joint surfaces of the adjacent tool magazine module plates, and the positioning structures between the adjacent tool magazine module plates are interlocked.

4. The multi-station tool magazine for a horizontal machine tool according to claim 1, characterized in that: The connecting ears are evenly distributed on the side of the tool clamp unit seat in the vertical direction, and the gap between adjacent connecting ears is greater than or equal to the thickness of the connecting ears, in the gap between the connecting ears of adjacent tool clamp unit seats.

5. The multi-station tool magazine for a horizontal machine tool according to claim 1, characterized in that: A clamping block is slidably arranged on the tool clamp unit seat, and the two sides of the clamping block are respectively in contact with the clamping jaws on both sides of the tool clamp unit seat, and the clamping jaws are provided with C-shaped grooves corresponding to the clamping block, and the C-shaped grooves are included on the outer side of the clamping block. The tool clamp unit seat is provided with a reset unit, and the reset unit is connected to the clamping block or the clamping jaws.

6. The multi-station tool magazine for a horizontal machine tool according to claim 5, characterized in that: The reset unit adopts a compression spring, which is arranged between the clamping jaw pressure block and the tool clamping unit seat. The reset unit adopts a tension spring, which is arranged between the clamping jaws on both sides. The reset unit adopts a torsion spring, which is arranged at the hinge position between the clamping jaw and the tool clamping unit seat. One end of the torsion spring is connected to the clamping jaw, and the other end is connected to the tool clamping unit seat.

7. The multi-station tool magazine for a horizontal machine tool according to claim 5, characterized in that: Limiting grooves are respectively arranged at both ends of the C-shaped groove on the clamping jaws on both sides of the clamping jaw pressing block, and the two ends of the C-shaped groove are respectively embedded in the corresponding limiting grooves.

8. The multi-station tool magazine for a horizontal machine tool according to claim 5, characterized in that: An ejector screw is screwed into one end of the tool clamp unit seat away from the clamping jaw, and the end of the ejector screw contacts the end surface of the clamping jaw pressing block.

9. The multi-station tool magazine for a horizontal machine tool according to claim 1, characterized in that: The output gear adopts a wide tooth type in which the width of the gear teeth is greater than the gap between the teeth, and the tooth pitch of the output gear is 90-110mm.

10. The multi-station tool magazine for a horizontal machine tool according to claim 1, characterized in that: The tool magazine body is provided with a movable groove corresponding to the motor, a movable mounting plate is movably provided in the movable groove, and the motor is arranged on the movable mounting plate; and a plurality of limit plates are provided on the side of the movable groove corresponding to the movable mounting plate.

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