Hidden type automatic tool changing mechanism

Abstract

The utility model relates to the field of drilling devices, in particular to a hidden type automatic tool changing mechanism which comprises a rack and a drilling assembly body arranged on the rack, a mounting box is arranged on the rack, a plurality of placing plates used for placing tools are arranged in the mounting box, the placing plates are arranged in the height direction of the mounting box, and the drilling assembly body is arranged on the rack. The device comprises a mounting box, an opening is formed in the mounting box, the mounting box is rotationally connected with a sealing door used for sealing the opening, a driving assembly is arranged on the mounting box, the driving assembly is used for driving the sealing door to rotate, and a pushing assembly is arranged in the mounting box. The device has the effect of reducing the situation that waste falls onto the standby cutter.

Description

Technical Field

[0001] The present application relates to the technical field of drilling devices, and in particular to a hidden automatic tool changing mechanism. Background Art

[0002] The machine tool is aimed at customers who produce small and medium-sized parts in large quantities. It improves customers' processing efficiency by appropriately dispersing the working processes, increasing the number of spindles that can be processed simultaneously, and reducing tool change time. For example, in the processing of sheet metal parts, which is the most common in metal drilling, due to the high requirements for hole precision, multiple different types of tools are usually used, and then the processing efficiency is improved by automatically changing the tools.

[0003] For example, a tool magazine and drilling and tapping equipment with automatic tool change, published as CN204295386U, includes several tools, which are divided into a tool holder and a fixing part, and the two are connected by a clamping part. The clamping part is provided with a clamping groove around it, and also includes a mounting plate that can rotate around its own axis, and several tool mounting structures are evenly distributed along its periphery. The tool is clamped on the tool mounting structure by the clamping part, and the fixing part is vertically placed above the mounting plate, as well as a power mechanism, which can drive the mounting plate to rotate at a fixed angle; when the tool needs to be changed, the mounting plate rotates so that the empty tool mounting structure is located at the conveying station, and the tool magazine and the horizontal suspension beam move along the positive and negative directions of the X-axis respectively until the tool holder approaches the mounting plate, and the tool holder descends along the Z-axis so that the clamping part of the tool on the tool holder is flush with the buckle part, and finally the tool holder sends the tool into the tool mounting structure along the negative direction of the X-axis and locks it.

[0004] Since the automatic tool changing function has requirements on the finish of the contact part between the tool holder and the spindle, the contact surface must be smooth and free of scratches, and foreign matter and iron chips are not allowed to adhere to the contact surface. In the above-mentioned related technologies, although the tool can be replaced by driving the mounting plate to rotate, iron chips are easily attached to the tool surface, affecting the assembly accuracy during tool change. Utility Model Content

[0005] In order to reduce the occurrence of iron chips on the tool, the present application provides a hidden automatic tool changing mechanism.

[0006] The present application provides a hidden automatic tool changing mechanism that adopts the following technical solutions:

[0007] A hidden automatic tool changing mechanism comprises a frame and a drilling assembly body arranged on the frame, the frame is provided with an installation box, a plurality of placement plates for placing cutting tools are arranged in the installation box, and the plurality of placement plates are arranged along the height direction of the installation box, an opening is provided on the installation box, and the installation box is rotatably connected to a sealing door for sealing the opening, a driving assembly is provided on the installation box, and the driving assembly is used to drive the sealing door to rotate, and a pushing assembly is provided in the installation box, and the pushing assembly is used to push the placement plate to move toward the bottom wall of the installation box; a pulling assembly is provided on the sealing door, and the pulling assembly is used to pull the lowest placement plate to move away from the installation box.

[0008] Optionally, the pushing assembly includes a pushing plate slidably connected to the inner wall of the installation box and a pushing spring fixed to the pushing plate, one end of the pushing spring is fixed to the pushing plate, and the other end is fixed to the inner wall of the installation box, and under the action of the pushing spring, the pushing plate is driven to move toward the bottom wall of the installation box.

[0009] Optionally, a limiting component is provided on the placement plate, and the limiting component includes a limiting groove opened on the placement plate and a limiting block provided on the placement plate, and the limiting block is used to be inserted into the limiting groove on the lower placement plate.

[0010] Optionally, the pulling assembly includes a pulling cylinder fixed on the sealing door and a clamping block fixed on the pulling cylinder. A movable plate is fixedly installed on the lowest placement plate. The movable plate is slidably connected to the bottom wall of the installation box. A clamping groove for clamping the limit block is provided on the movable plate. When the sealing door is rotated horizontally, the clamping block rotates into the clamping groove.

[0011] Optionally, a drive assembly is provided on the installation box, and the drive assembly is used to drive the sealing door to rotate; the drive assembly includes a drive shaft rotating on the installation box and a drive motor fixed on the installation box, the drive shaft is fixed on the sealing door, and the output shaft of the drive motor is fixed on the drive shaft.

[0012] Optionally, a sealing strip is provided on the sealing door, and the sealing strip is arranged along the circumference of the sealing door.

[0013] Optionally, a conveying assembly is provided on the installation box. When all the placement plates are arranged side by side in the horizontal direction, the conveying assembly can move the lowest placement plate toward the top wall of the installation box; the conveying assembly includes two conveying rollers rotatably connected to the installation box and a conveyor belt wound around the conveying rollers, and the conveyor belt is provided with a linkage assembly for fixing or detaching the placement plate from the conveyor belt.

[0014] Optionally, the linkage assembly includes an electromagnet and a fixed plate fixed on the placement plate, the electromagnet is provided in plurality, and the plurality of electromagnets are arranged in a circle along the circumference of the conveyor belt, and the fixed plates are provided in plurality, and the plurality of fixed plates correspond one to one to the plurality of placement plates.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] The mounting box is rotatably connected to a sealing door for sealing the opening on the mounting box. When the drilling assembly is working, the mounting box is in a sealed state, which can reduce the waste material from falling onto the tool in the mounting box during drilling. Even under conditions where cutting fluid splashes, the tool handle can be kept free of iron chips.

[0017] Under the action of the pushing component, the limit block of the upper placement plate moves to the limit slot, and so on, thereby realizing the placement plates being arranged in parallel in the horizontal direction, so that the tool is moved outside the installation box, thereby achieving the purpose of facilitating the replacement of the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0019] Figure 2 It is a schematic diagram of the installation box and placement plate structure of an embodiment of the present application.

[0020] Figure 3 This is a schematic diagram of two adjacent boards being connected in an embodiment of the present application.

[0021] Figure 4 It is a schematic diagram of the structure of the moving block and the card slot of an embodiment of the present application.

[0022] Figure 5 It is a schematic diagram of the structure of the conveying component and the linkage component of an embodiment of the present application.

[0023] Figure markings: 1. Frame; 11. Drilling assembly body; 12. Installation box; 13. Opening; 14. Sealing door; 15. Placement plate; 2. Driving assembly; 21. Driving motor; 3. Pushing assembly; 31. Pushing plate; 32. Pushing spring; 4. Pulling assembly; 41. Pulling cylinder; 42. Clamping block; 43. Moving plate; 5. Clamping groove; 51. Moving groove; 6. Limiting assembly; 61. Limiting groove; 62. Limiting block; 7. Conveying assembly; 71. Conveying roller; 72. Conveyor belt; 73. Fixed plate; 8. Linkage assembly; 81. Electromagnet; 9. Positioning bar; 91. Positioning groove; 92. Give way groove. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1-5 This application is described in further detail.

[0025] The embodiment of the present application discloses a hidden automatic tool changing mechanism. Figures 1 to 5 The tool holder 12 is provided with a plurality of supporting plates 15 for supporting the tool, and the supporting plates 15 are connected to the inner wall of the tool holder 12 so as to prevent the tool holder from being damaged.

[0026] Reference Figures 1 to 5 A sealing strip is provided on the sealing door 14, and the sealing strip is arranged along the circumference of the sealing door 14. The driving assembly 2 includes a driving shaft rotating on the mounting box 12 and a driving motor 21 fixed on the mounting box 12. The driving shaft is fixed on the sealing door 14, and the output shaft of the driving motor 21 is fixed to the driving shaft. The driving shaft is driven to rotate by the driving motor 21, and then the purpose of controlling the rotation of the sealing door 14 is facilitated.

[0027] Reference Figures 1 to 5 The placement plates 15 in the installation box 12 are arranged along the length direction of the installation box 12. The specific number of the placement plates 15 is set according to actual needs. Specifically, the lowest placement plate 15 abuts against the bottom wall of the installation box 12, and then the upper placement plate 15 abuts against the upper surface of the lower placement plate 15. In this embodiment, the height of the placement plate 15 is the same as the length of the tool.

[0028] Reference Figures 1 to 5 A pushing assembly 3 is provided in the installation box 12, and is used to push the placement plate 15 toward the bottom wall of the installation box 12. At the same time, a pulling assembly 4 is provided on the sealing door 14, and is used to pull the lowest placement plate 15 away from the installation box 12, thereby allowing the placement plate 15 to be removed from the installation box 12, and then facilitating the installation of the tool extending from the installation box 12 onto the drilling assembly body 11. At the same time, a positioning bar 9 is fixedly installed on the inner wall of the installation box 12, and a positioning groove 91 for engaging the positioning bar 9 is provided on the placement plate 15, which is more stable during the downward movement of the placement plate 15. At the same time, a clearance groove 92 is provided on the positioning bar 9 to facilitate the removal of the lowest placement plate 15 from the installation box 12.

[0029] Reference Figures 1 to 5 The pushing assembly 3 includes a pushing plate 31 slidably connected to the inner wall of the installation box 12 and a pushing spring 32 fixed on the pushing plate 31. One end of the pushing spring 32 is fixed to the pushing plate 31, and the other end is fixed to the inner wall of the installation box 12. Under the action of the pushing spring 32, the pushing plate 31 is driven to move toward the bottom wall of the installation box 12; the pulling assembly 4 includes a pulling cylinder 41 fixed on the sealing door 14 and a clamping block 42 fixed on the pulling cylinder 41. At the same time, a moving plate 43 is fixedly installed on the lowest placement plate 15. The moving plate 43 is slidably connected to the bottom wall of the installation box 12. A clamping groove 5 is provided on the moving plate 43, and the opening 13 of the clamping groove 5 faces downward.

[0030] Reference Figures 1 to 5 , a moving groove 51 is provided on the bottom wall of the installation box 12, and a moving groove 51 is also provided on the sealing door 14. When the sealing door 14 rotates to a horizontal state, the moving groove 51 on the sealing door 14 and the moving groove 51 on the bottom wall of the installation box 12 are correspondingly arranged. At this time, the sealing door 14 is in a horizontal state, and the clamping block 42 rotates into the clamping groove 5. In this embodiment, the clamping block 42 is set to a T-shaped structure. When the cylinder 41 is pulled to move, the movable plate 43 can be driven to move. When the movable plate 43 moves, it drives the bottom placement plate 15 to move, thereby facilitating the placement plate 15 to be moved out of the installation box 12; when the sealing door 14 seals the installation box 12, the clamping block 42 and the clamping groove 5 are disengaged.

[0031] Reference Figures 1 to 5 A limit assembly 6 is provided on the placement plate 15. The limit assembly 6 includes a limit groove 61 provided on the placement plate 15 and a limit block 62 provided on the placement plate 15. The limit block 62 is used to be inserted into the limit groove 61 on the lower placement plate 15. After the pulling cylinder 41 drives the lowest placement plate 15 to move out of the installation groove, the limit groove 61 on the lowest placement plate 15 corresponds to the limit block 62 on the upper placement plate 15. At this time, the placement plate 15 is pushed downward by the action of the pushing assembly 3, so that the limit block 62 moves into the limit groove 61. Under the action of the pulling cylinder 41, multiple placement plates 15 can be arranged side by side in the horizontal direction, thereby facilitating the replacement of tools. In addition, when the installation box 12 is sealed, the placement plates 15 are placed and arranged vertically. At this time, the space occupied by the installation box 12 can be reduced. In this embodiment, the cross-section of the limit block 62 and the limit groove 61 is set to a T-shaped structure.

[0032] Reference Figures 1 to 5A conveying assembly 7 is provided on the installation box 12. When all the placement plates 15 are arranged side by side in the horizontal direction, the conveying assembly 7 can move the lowest placement plate 15 toward the top wall of the installation box 12, thereby driving the push plate 31 to move, so that the push spring 32 is in a compressed state; the conveying assembly 7 includes two conveying rollers 71 rotatably connected to the installation box 12 and a conveyor belt 72 wound around the conveying rollers 71. At the same time, a conveying motor is provided on the installation box 12, and the output shaft of the conveying motor is connected to one of the conveying rollers 71, thereby driving the conveyor belt 72 to rotate.

[0033] Reference Figures 1 to 5 A linkage assembly 8 is provided on the conveyor belt 72. A fixing plate 73 is fixedly mounted on each placement plate 15. The fixing plate 73 is made of iron material. The linkage assembly 8 can fix the fixing plate 73 to the conveyor belt 72 or separate the fixing plate 73 from the conveyor belt 72. When the placement plate 15 needs to be moved outside the installation box 12, the fixing plate 73 is separated from the conveyor belt 72. When the placement plate 15 outside the installation box 12 needs to be moved inside the installation box 12, the fixing plate 73 is fixed to the conveyor belt 72, thereby facilitating the stacking of multiple placement plates 15.

[0034] Reference Figures 1 to 5 The linkage component 8 is set as an electromagnet 81, and multiple electromagnets 81 are set. Multiple electromagnets 81 are arranged in a circle along the circumference of the conveyor belt 72. When the placement plate 15 needs to be moved outside the installation box 12, the electromagnet 81 is energized. At this time, the fixed plate 73 is adsorbed on the conveyor belt 72, driving the placement plate 15 closest to the inner wall of the installation box 12 to move upward, and the corresponding limit block 62 disengages from the limit groove 61, and at the same time pulls the cylinder 41 to move in the opposite direction. When the first placement plate 15 and the second placement plate 15 are staggered, the cylinder 41 is pulled so that the second placement plate 15 abuts against the conveyor belt 72, thereby achieving the purpose of retracting the placement plate 15 and the tool into the placement box.

[0035] The implementation principle of a hidden automatic tool changing mechanism in an embodiment of the present application is as follows: when the drilling component body 11 is working, the sealing door 14 seals the installation box 12. At this time, even under the condition of cutting fluid splashing, it can ensure that there is no iron chips attached to the tool handle. Then, when the tool needs to be replaced, the driving cylinder drives the sealing door 14 to rotate. At this time, the clamping block 42 rotates into the clamping groove 5, and then the cylinder 41 is pulled to drive the moving plate 43 to move, which can drive the lowest placement plate 15 to move to the outside of the installation box 12. At this time, the limit block 62 corresponds to the limit groove 61. Under the action of the pushing component 3, the limit block 62 of the upper placement plate 15 moves to the limit groove 61, and so on, thereby realizing the placement plates 15 being arranged in parallel in the horizontal direction, so that the tool is moved to the outside of the installation box 12, thereby achieving the purpose of facilitating the replacement of the tool.

[0036] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A hidden automatic tool changing mechanism, comprising a frame (1) and a drilling assembly body (11) arranged on the frame (1), characterized in that: The frame (1) is provided with an installation box (12), and a plurality of placement plates (15) for placing cutting tools are provided in the installation box (12), and the plurality of placement plates (15) are arranged along the height direction of the installation box (12). The installation box (12) is provided with an opening (13), and the installation box (12) is rotatably connected to a sealing door (14) for blocking the opening (13). The installation box (12) is provided with a driving component (2), and the driving component (2) is used to drive the sealing door (14) to rotate. The installation box (12) is provided with a pushing component (3), and the pushing component (3) is used to push the placement plate (15) to move toward the bottom wall of the installation box (12); the sealing door (14) is provided with a pulling component (4), and the pulling component (4) is used to pull the lowest placement plate (15) to move in a direction away from the installation box (12).

2. The hidden automatic tool changing mechanism according to claim 1, characterized in that: The pushing assembly (3) comprises a pushing plate (31) slidably connected to the inner wall of the installation box (12) and a pushing spring (32) fixed to the pushing plate (31), one end of the pushing spring (32) is fixed to the pushing plate (31), and the other end is fixed to the inner wall of the installation box (12), and under the action of the pushing spring (32), the pushing plate (31) is driven to move toward the bottom wall of the installation box (12).

3. The hidden automatic tool changing mechanism according to claim 2, characterized in that: A limiting assembly (6) is provided on the placement plate (15), and the limiting assembly (6) comprises a limiting groove (61) provided on the placement plate (15) and a limiting block (62) provided on the placement plate (15), wherein the limiting block (62) is used for being inserted into the limiting groove (61) on the lower placement plate (15).

4. The hidden automatic tool changing mechanism according to claim 3, characterized in that: The pulling assembly (4) includes a pulling cylinder (41) fixed on the sealing door (14) and a clamping block (42) fixed on the pulling cylinder (41); a movable plate (43) is fixedly installed on the lowermost placement plate (15); the movable plate (43) is slidably connected to the bottom wall of the installation box (12); a clamping groove (5) for clamping the limit block (62) is provided on the movable plate (43); when the sealing door (14) is rotated in a horizontal setting, the clamping block (42) rotates into the clamping groove (5).

5. The hidden automatic tool changing mechanism according to claim 4, characterized in that: A drive assembly (2) is provided on the installation box (12), and the drive assembly (2) is used to drive the sealing door (14) to rotate; the drive assembly (2) comprises a drive shaft rotating on the installation box (12) and a drive motor (21) fixed on the installation box (12), the drive shaft is fixed on the sealing door (14), and the output shaft of the drive motor (21) is fixed on the drive shaft.

6. The hidden automatic tool changing mechanism according to claim 5, characterized in that: A sealing strip is provided on the sealing door (14), and the sealing strip is provided along the circumference of the sealing door (14).

7. The hidden automatic tool changing mechanism according to claim 6, characterized in that: The installation box (12) is provided with a conveying assembly (7). When all the placement plates (15) are arranged side by side in the horizontal direction, the lowermost placement plate (15) can be moved toward the top wall of the installation box (12) through the conveying assembly (7); the conveying assembly (7) includes two conveying rollers (71) rotatably connected to the installation box (12) and a conveyor belt (72) wound around the conveying rollers (71). The conveyor belt (72) is provided with a linkage assembly (8) for fixing or detaching the placement plate (15) from the conveyor belt (72).

8. The hidden automatic tool changing mechanism according to claim 7, characterized in that: The linkage assembly (8) includes an electromagnet (81) and a fixed plate (73) fixed on the placement plate (15), wherein a plurality of electromagnets (81) are provided, and the plurality of electromagnets (81) are arranged in a circle along the circumference of the conveyor belt (72), and a plurality of fixed plates (73) are provided, and the plurality of fixed plates (73) correspond one to one to the plurality of placement plates (15).

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