Clamping device of boring and milling machine
By introducing protective devices and driving devices into the clamping device of the boring and milling machine, the problem of debris entering the gap is solved, the movement efficiency is improved, and the center clamping is achieved through synchronous moving plates, which solves the lag and consumption in the prior art A problem of time and effort.
Patent Information
- Application Number
- CN202420743035.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-10
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-10
AI Technical Summary
The debris generated during the boring and milling machine processing are easy to enter the gap of the clamping device, resulting in lag and difficulty in cleaning, affecting movement efficiency, and in the prior art, the two groups of lower chassis move respectively, resulting in difficulty and time-consuming clamping. It's laborious.
A boring and milling machine clamping device is designed, including a protective device and a driving device. The protective device covers the gap through a snake belly telescopic cover to prevent debris from entering. At the same time, the driving device realizes that two sets of moving plates are approached simultaneously through a telescopic cylinder and a linkage mechanism to achieve the matching of the two sets of moving plates. Clamped in the middle.
Effectively prevent debris from entering the gap, improve movement efficiency, and realize centering clamping through synchronous moving plates, reducing operating time and strength.
Smart Images
Figure CN222134204U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of clamping devices, and more specifically, to a clamping device for a boring and milling machine. Background Art
[0002] Boring and milling machines are generally provided with clamping devices for positioning and clamping workpieces. For example, the existing patent with patent number CN201721858692.9 discloses a clamping device for a boring and milling machine for cantilever beam processing. In this patent, a second slide groove is provided on the bottom plate, and the lower chassis moves in the second slide groove. However, the debris generated during the processing can easily enter the second slide groove, which is not easy to clean, or enter the gap between the lower chassis and the second slide groove, causing the lower chassis to get stuck when moving, affecting the movement; in addition, the two groups of lower chassis in this patent need to be moved separately, which makes it difficult to center and clamp the parts, and it takes a long time to move the two groups of lower chassis separately, which is time-consuming and labor-intensive. Utility Model Content
[0003] 1. Technical issues to be resolved
[0004] In view of the problems existing in the prior art, the utility model provides a clamping device for a boring and milling machine to solve the technical problem mentioned in the background technology that the debris generated during the machining process easily enters the second chute and is difficult to clean.
[0005] (II) Technical solution
[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a boring and milling machine clamping device, comprising a workbench, the workbench is provided with a protective device and a driving device, the protective device comprises a fixed plate, a movable plate, an accordion telescopic cover, a pull rod and a guide rod, the fixed plate is fixedly arranged on the workbench, the pull rod and the guide rod are fixedly connected to the movable plate at one end, and the other end both penetrates the fixed plate and slides with the fixed plate, the accordion telescopic cover is sleeved outside the pull rod and the guide rod, and the two ends of the accordion telescopic cover are respectively fixedly connected to the fixed plate and the movable plate, the driving device comprises a first movable frame, a second movable frame, a telescopic cylinder and a linkage mechanism, the protective device is provided with two groups, and is symmetrically arranged on the workbench, the pull rods in the two groups of the protective devices are respectively connected to the first movable frame and the second movable frame, the telescopic section of the telescopic cylinder is connected to the first movable frame, and the first movable frame and the second movable frame are connected by the linkage mechanism.
[0007] The utility model is further configured such that the linkage mechanism includes a fixed shaft, a gear, a first rack and a second rack, the fixed shaft is arranged on the lower surface of the workbench, the gear rotatably sleeve is arranged outside the fixed shaft, the first rack and the second rack are both slidably connected to the lower surface of the workbench, and the gear is meshed with the first rack and the second rack.
[0008] The utility model is further configured that two linkage mechanisms are provided and both are arranged on the lower surface of the workbench.
[0009] The utility model is further configured that the first racks in the two linkage mechanisms are both connected to the first moving frame, and the second racks in the two linkage mechanisms are both connected to the second moving frame.
[0010] The utility model is further configured that a positioning plate is provided on one side of the movable plate, a connecting screw is provided on the positioning plate, a through hole is provided on the movable plate, the connecting screw passes through the through hole, and a connecting nut is provided on a threaded sleeve at one end of the connecting screw away from the positioning plate.
[0011] The utility model is further configured that a first protective shell is provided on a side of the fixed plate away from the movable plate, and the guide rod, the pull rod, the first movable frame and the second movable frame are all arranged below the first protective shell.
[0012] The utility model is further configured such that a second protective shell is provided on the lower surface of the workbench, the linkage mechanism and the telescopic cylinder are both arranged in the second protective shell, and through grooves cooperating with the telescopic end of the telescopic cylinder, the first rack and the second rack are provided on both sides of the second protective shell.
[0013] The utility model is further configured that a guide groove is provided below the workbench.
[0014] (III) Beneficial effects
[0015] Compared with the prior art, the utility model provides a boring and milling machine clamping device, which has the following beneficial effects:
[0016] 1. The utility model is provided with a protective device, in which a bellows telescopic cover is provided between the movable plate and the fixed plate. When the movable plate moves, the bellows telescopic cover can block the gap between the pull rod, the guide rod and the fixed plate to prevent waste chips from entering the gap and affecting the movement of the movable plate.
[0017] 2. The utility model is provided with a driving device. When the telescopic cylinder moves, it can drive the first moving frame and the second moving frame to move together, thereby driving the two sets of moving plates to approach at the same time, so as to center and clamp the workpiece.
[0018] 3. In the utility model, a first protective shell is provided on one side of the fixed plate, which can shield the guide rod, the pull rod, the first movable frame and the second movable frame to prevent waste chips from splashing onto the guide rod and the pull rod. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the overall structure of a clamping device for a boring and milling machine;
[0020] Figure 2 The schematic diagram of the overall structure without the discharge chute;
[0021] Figure 3 The schematic diagram of the overall structure without the discharge chute and bellows bellows;
[0022] Figure 4 It is a structural schematic diagram of the movable plate and the positioning plate in the unconnected state;
[0023] Figure 5 It is a schematic diagram of the structure of the second protective shell.
[0024] In the figure: 1. workbench; 2. fixed plate; 3. movable plate; 4. bellows telescopic cover; 5. pull rod; 6. guide rod; 7. first movable frame; 8. second movable frame; 9. telescopic cylinder; 10. fixed shaft; 11. gear; 12. first rack; 13. second rack; 14. positioning plate; 15. connecting screw; 16. through hole; 17. connecting nut; 18. first protective shell; 19. second protective shell; 20. through groove; 21. discharge chute. DETAILED DESCRIPTION
[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.
[0027] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.
[0028] See also Figure 1-5A boring and milling machine clamping device comprises a workbench 1, on which a protective device and a driving device are provided, the protective device comprising a fixed plate 2, a movable plate 3, an accordion telescopic cover 4, a pull rod 5 and a guide rod 6, the fixed plate 2 is fixedly arranged on the workbench 1, one end of the pull rod 5 and the guide rod 6 are fixedly connected to the movable plate 3, and the other end both penetrates the fixed plate 2 and slides with the fixed plate 2, the accordion telescopic cover 4 is sleeved outside the pull rod 5 and the guide rod 6, and the two ends of the accordion telescopic cover 4 are respectively fixedly connected to the fixed plate 2 and the movable plate 3, the driving device comprises a first movable frame 7, a second movable frame 8, a telescopic cylinder 9 and a linkage mechanism, the protective device is provided with two groups, and is symmetrically arranged on the workbench 1, the pull rods 5 in the two groups of protective devices are respectively connected to the first movable frame 7 and the second movable frame 8, the telescopic section of the telescopic cylinder 9 is connected to the first movable frame 7, and the first movable frame 7 and the second movable frame 8 are connected through a linkage mechanism.
[0029] In this embodiment, when the pull rod 5 moves outward, the movable plate 3 approaches the fixed plate 2 along the direction of the guide rod 6, and the two movable plates 3 move away from each other, releasing the workpiece to facilitate the picking up of the workpiece. In this process, the accordion telescopic cover 4 contracts to always cover the area between the fixed plate 2 and the movable plate 3 to prevent waste chips from splashing. When the pull rod 5 is pushed inward, the movable plate 3 moves away from the fixed plate 2 along the direction of the guide rod 6, and the two movable plates 3 move close to each other to center and clamp the workpiece.
[0030] More specifically, the telescopic cylinder 9 is started, and when it extends, it drives the first movable frame 7 to move outward, and drives the pull rod 5 to move outward, and drives the second movable frame 8 and the pull rod 5 in another set of protective devices to move outward through the linkage mechanism. When the telescopic cylinder 9 contracts, it drives the first movable frame 7 and the second movable frame 8 to move closer to each other, so as to clamp the workpiece.
[0031] See also Figure 1-5 As an implementation of the linkage mechanism: the linkage mechanism includes a fixed shaft 10, a gear 11, a first rack 12 and a second rack 13. The fixed shaft 10 is arranged on the lower surface of the workbench 1, the gear 11 is rotatably sleeved outside the fixed shaft 10, the first rack 12 and the second rack 13 are both slidably connected to the lower surface of the workbench 1, and the gear 11 is meshed with the first rack 12 and the second rack 13. There are two linkage mechanisms, and both are arranged on the lower surface of the workbench 1. The first rack 12 in the two linkage mechanisms is connected to the first mobile frame 7, and the second rack 13 in the two linkage mechanisms is connected to the second mobile frame 8. A second protective shell 19 is provided on the lower surface of the workbench 1, the linkage mechanism and the telescopic cylinder 9 are both arranged in the second protective shell 19, and through grooves 20 that cooperate with the telescopic end of the telescopic cylinder 9, the first rack 12 and the second rack 13 are provided on both sides of the second protective shell 19.
[0032] Specifically, when the first movable frame 7 moves outward, the first rack 12 is driven to move. When the first rack 12 moves, the gear 11 is driven to rotate, and the second rack 13 is driven to move in the opposite direction, thereby driving the second movable frame 8 to move outward.
[0033] See also Figure 1-5 As a further implementation of the movable plate 3: a positioning plate 14 is provided on one side of the movable plate 3, a connecting screw 15 is provided on the positioning plate 14, a through hole 16 is provided on the movable plate 3, the connecting screw 15 passes through the through hole 16, and a connecting nut 17 is threadedly sleeved on one end of the connecting screw 15 away from the positioning plate 14.
[0034] Specifically, the connecting screw 15 on the positioning plate 14 is passed through the through hole 16 , the connecting nut 17 is threadedly sleeved on the outside of the connecting screw 15 , and the connecting nut 17 is tightened to connect and fix the moving plate 3 and the positioning plate 14 .
[0035] See also Figure 1-5 As a further implementation of the fixed plate 2 , a first protective shell 18 is provided on the side of the fixed plate 2 away from the movable plate 3 , and the guide rod 6 , the pull rod 5 , the first movable frame 7 and the second movable frame 8 are all arranged below the first protective shell 18 .
[0036] Specifically, when the first protective shell 18 is installed on one side of the fixed plate 2 , the guide rod 6 , the pull rod 5 , the first movable frame 7 and the second movable frame 8 are shielded by the first protective shell 18 .
[0037] See also Figure 1-5 As a further embodiment of the workbench 1 : a discharge trough 21 is provided under the workbench 1 .
[0038] Specifically, the waste chips generated during the processing are swept into the discharge trough 21 for discharge.
[0039] In summary, when the overall equipment is in use:
[0040] When the pull rod 5 moves outward, the movable plate 3 approaches the fixed plate 2 along the direction of the guide rod 6, and the two movable plates 3 move away from each other, releasing the workpiece to facilitate the picking up of the workpiece. In this process, the accordion telescopic cover 4 contracts to always cover the area between the fixed plate 2 and the movable plate 3 to prevent waste chips from splashing. When the pull rod 5 is pushed inward, the movable plate 3 moves away from the fixed plate 2 along the direction of the guide rod 6, and the two movable plates 3 move close to each other to center and clamp the workpiece.
[0041] Start the telescopic cylinder 9. When it extends, it drives the first movable frame 7 to move outward, and drives the pull rod 5 to move outward. Through the linkage mechanism, it drives the second movable frame 8 and the pull rod 5 in another set of protective devices to move outward. When the telescopic cylinder 9 contracts, it drives the first movable frame 7 and the second movable frame 8 to move closer to each other to clamp the workpiece.
[0042] When the first movable frame 7 moves outward, the first rack 12 is driven to move. When the first rack 12 moves, the gear 11 is driven to rotate, and the second rack 13 is driven to move in the opposite direction, thereby driving the second movable frame 8 to move outward.
[0043] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.
Claims
1. A clamping device for a boring and milling machine, comprising a workbench (1), Its characteristics are: The workbench (1) is provided with a protective device and a driving device, and the protective device comprises a fixed plate (2), a movable plate (3), a bellows telescopic cover (4), a pull rod (5) and a guide rod (6); the fixed plate (2) is fixedly arranged on the workbench (1); one end of the pull rod (5) and the guide rod (6) are fixedly connected to the movable plate (3); the other end of each of the pull rod (5) and the guide rod (6) passes through the fixed plate (2) and is slidably matched with the fixed plate (2); the bellows telescopic cover (4) is sleeved outside the pull rod (5) and the guide rod (6), and the two ends of the bellows telescopic cover (4) are respectively The protective device is fixedly connected to the fixed plate (2) and the movable plate (3), respectively. The driving device comprises a first movable frame (7), a second movable frame (8), a telescopic cylinder (9) and a linkage mechanism. The protective device is provided in two groups and is symmetrically arranged on the workbench (1). The pull rods (5) in the two groups of the protective devices are respectively connected to the first movable frame (7) and the second movable frame (8). The telescopic section of the telescopic cylinder (9) is connected to the first movable frame (7). The first movable frame (7) and the second movable frame (8) are connected via the linkage mechanism.
2. A boring and milling machine clamping device according to claim 1, Its characteristics are: The linkage mechanism comprises a fixed shaft (10), a gear (11), a first rack (12) and a second rack (13); the fixed shaft (10) is arranged on the lower surface of the workbench (1); the gear (11) is rotatably sleeved outside the fixed shaft (10); the first rack (12) and the second rack (13) are both slidably connected to the lower surface of the workbench (1), and the gear (11) is meshed with the first rack (12) and the second rack (13).
3. A boring and milling machine clamping device according to claim 2, Its characteristics are: There are two linkage mechanisms, both of which are arranged on the lower surface of the workbench (1).
4. A boring and milling machine clamping device according to claim 3, Its characteristics are: The first racks (12) in the two linkage mechanisms are both connected to the first moving frame (7), and the second racks (13) in the two linkage mechanisms are both connected to the second moving frame (8).
5. A boring and milling machine clamping device according to claim 1, Its characteristics are: A positioning plate (14) is provided on one side of the movable plate (3), a connecting screw (15) is provided on the positioning plate (14), a through hole (16) is provided on the movable plate (3), the connecting screw (15) passes through the through hole (16), and a connecting nut (17) is threadedly sleeved on one end of the connecting screw (15) away from the positioning plate (14).
6. A boring and milling machine clamping device according to any one of claims 1 to 5, Its characteristics are: A first protective shell (18) is provided on the side of the fixed plate (2) away from the movable plate (3), and the guide rod (6), the pull rod (5), the first movable frame (7) and the second movable frame (8) are all arranged below the first protective shell (18).
7. A boring and milling machine clamping device according to claim 4, Its characteristics are: A second protective shell (19) is provided on the lower surface of the workbench (1), the linkage mechanism and the telescopic cylinder (9) are both arranged in the second protective shell (19), and through grooves (20) are provided on both sides of the second protective shell (19) for matching with the telescopic end of the telescopic cylinder (9), the first rack (12) and the second rack (13).
8. A boring and milling machine clamping device according to claim 1, Its characteristics are: A discharge trough (21) is provided below the workbench (1).