Pneumatic opening observation cover of drilling and milling machine

Abstract

The utility model discloses a drilling and milling machine pneumatic opening observation cover which comprises a machine tool, the machine tool is installed on external equipment, a fixing mechanism is arranged on the machine tool, and the fixing mechanism comprises a movable cover, an air cylinder, an insertion rod, a fixing rod, a clamping pipe, a threaded section, a clamping block, a sliding mechanism, a tension spring, an attaching spring and a telescopic mechanism. The movable cover is slidably connected to the machine tool, the air cylinder is fixedly installed on the machine tool, the extending end of the air cylinder is connected to the movable cover, the inserting rod is installed on the fixing rod, and the fixing rod is in threaded connection to the machine tool. The observation cover is fixed on the machine tool, stability and sealing performance of the observation cover on the machine tool are guaranteed, the observation cover can be firmly kept at the set position in the operation process through the fixing mode, movement or dislocation possibly caused by machine vibration is reduced, and therefore operation safety and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatically opened observation covers for drilling and milling machines, and more specifically, to a pneumatically opened observation cover for drilling and milling machines. Background Art

[0002] In the prior art, pneumatically opened viewing hoods for drilling and milling machines are designed to protect operators from flying debris and dust while providing a clear line of sight to monitor the machining process. However, the pneumatic fixing system of such viewing hoods has certain limitations. In particular, the viewing hood is usually fixed on one side by a pneumatic device. Although this one-sided fixing method can achieve rapid opening and closing, it cannot provide uniform pressure across the entire edge of the hood, resulting in an inability to form an effective seal.

[0003] Due to the unevenness of this fixing method, small gaps may appear in the viewing hood during operation, especially at the edge parts away from the fixing point. These gaps not only reduce the protective effect and allow tiny debris and dust to escape, but may also cause noise and other working environment problems. In addition, the safety of the viewing hood that lacks effective sealing may also be questioned when facing high-speed rotating cutting tools, because poor sealing may increase risks in unexpected situations. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the problems existing in the prior art, the utility model provides a pneumatically opened observation cover for a drilling and milling machine to solve the technical problems mentioned in the background technology.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pneumatically opened observation cover of a drilling and milling machine, comprising a machine tool, which is installed on external equipment. A fixing mechanism is arranged on the machine tool, and the fixing mechanism comprises a movable cover, a cylinder, an insertion rod, a fixed rod, a clamping tube, a threaded section, a clamping block, a sliding mechanism, a tension spring, a fitting spring and a telescopic mechanism. The movable cover is slidably connected to the machine tool, the cylinder is fixedly installed on the machine tool, the protruding end of the cylinder is connected to the movable cover, the insertion rod is installed on the fixed rod, the fixed rod is threadedly connected to the machine tool, the threaded section is installed on the clamping tube, the threaded section is threadedly connected to the movable cover, the insertion rod and the clamping tube are coaxially arranged, the sliding mechanism is cooperatively connected to the clamping tube and the clamping block, the tension spring is connected to the clamping block, the fitting spring is installed on the surface of the clamping block, the fitting spring abuts against the side wall of the insertion rod, and the telescopic mechanism is cooperatively connected to the clamping tube.

[0008] The utility model is further configured that a plurality of friction grooves are equidistantly provided on the side wall of the insertion rod, the fitting spring abuts against the friction groove, and a rounded corner is provided on the insertion rod. The design of the friction groove ensures the stability of the clamping.

[0009] The utility model is further configured such that the sliding mechanism includes a contraction block and an intermediate spring, a plurality of contraction blocks are provided, and the plurality of contraction blocks are equidistantly installed on the inner wall of the card tube, each contraction block is provided with a contraction groove, the card block is slidably connected to the contraction groove, the intermediate spring is installed on the card block, and the design of the sliding mechanism ensures the continuity of sliding.

[0010] The utility model is further configured that a plurality of springs are equidistantly arranged on the upper end surface of the clamping block, each of the springs is respectively connected to a limiting ball, and the design of the springs ensures the subsequent movement of the clamping block.

[0011] The utility model is further configured such that a connecting sleeve is coaxially provided on the clamping tube, a plurality of limiting grooves are equidistantly provided on the lower end surface of the connecting sleeve, a plurality of springs are slidably connected in the limiting grooves, and the design of the connecting sleeve ensures the continuity of movement.

[0012] The utility model is further configured that the telescopic mechanism includes a threaded sleeve and a push tube, the threaded sleeve is threadedly connected to the side wall of the clamping tube, and the push tube is coaxially installed on the threaded sleeve. The design of the telescopic mechanism ensures the subsequent movement of the clamping block.

[0013] The utility model is further configured that an intermediate sleeve is coaxially arranged on the connecting sleeve, a thrust bearing is sleeved on the intermediate sleeve, two ends of the thrust bearing respectively abut against the connecting sleeve and the thrust tube, and the design of the thrust bearing ensures vertical transmission of thrust.

[0014] The utility model is further configured that a hexagonal sleeve is threadedly provided on the intermediate sleeve, a receiving sleeve is sleeved on the intermediate sleeve, two ends of the receiving sleeve respectively abut against the push tube and the hexagonal sleeve, a hexagonal groove is provided on the hexagonal sleeve, and the design of the hexagonal sleeve ensures the limiting of the push tube.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a pneumatically opened observation cover for a drilling and milling machine, which has the following beneficial effects:

[0017] 1. The fixing mechanism can provide strong locking ability. Through the coordinated use of the cylinder and the movable cover, and the combination of the insertion rod and the fixing rod, the stability and sealing of the observation cover on the machine tool are ensured. This fixing method enables the observation cover to be firmly maintained in the set position during operation, reducing the movement or dislocation that may be caused by machine vibration, thereby improving the safety and efficiency of operation.

[0018] 2. The sliding mechanism provides flexible movement and adjustment functions. Through the cooperation between the card tube and the sliding mechanism, the card block can be precisely adjusted when needed. This design not only facilitates the rapid deployment and disassembly of the device, but also increases the ability of the mechanism to adapt to different working conditions, such as adjusting the sealing degree to cope with materials of different thicknesses or materials, thereby improving the versatility and convenience of use.

[0019] 3. The telescopic mechanism can accurately control the position and clamping force of the clamping block. Through the fine adjustment of the threaded sleeve and the push tube, the position of the clamping block can be fine-tuned. The existence of this mechanism allows users to adjust the pressure and position according to actual needs, ensuring the optimization of the sealing effect, while avoiding potential problems caused by excessive or insufficient force, further improving the accuracy and reliability of the machine tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of a pneumatically opened observation cover of a drilling and milling machine in the utility model;

[0021] Figure 2 For the utility model Figure 1 A partial enlarged view of middle A;

[0022] Figure 3 For the utility model Figure 1 A partial enlarged view of B in the middle;

[0023] Figure 4 It is a cross-sectional structural schematic diagram of the middle clamping pipe of the utility model;

[0024] Figure 5 It is a structural schematic diagram of the clamping block in the utility model.

[0025] In the figure: 1. machine tool; 2. moving cover; 3. cylinder; 4. insertion rod; 5. fixing rod; 6. clamping tube; 7. threaded section; 8. clamping block; 9. tension spring; 10. fitting spring; 11. friction groove; 12. fillet; 13. shrinkage block; 14. intermediate spring; 15. shrinkage groove; 16. spring; 17. connecting sleeve; 18. limiting groove; 19. threaded sleeve; 20. push tube; 21. intermediate sleeve; 22. thrust bearing; 23. hexagonal sleeve; 24. receiving sleeve; 25. hexagonal groove; 101. limiting ball. DETAILED DESCRIPTION

[0026] 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.

[0027] 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.

[0028] 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.

[0029] See also Figure 1-5 A pneumatically opened observation cover for a drilling and milling machine comprises a machine tool 1, which is mounted on an external device. A fixing mechanism is arranged on the machine tool 1, and the fixing mechanism comprises a moving cover 2, a cylinder 3, an insert rod 4, a fixing rod 5, a clamping tube 6, a threaded section 7, a clamping block 8, a sliding mechanism, a tension spring 9, a fitting spring 10 and a telescopic mechanism. The moving cover 2 is slidably connected to the machine tool 1, the cylinder 3 is fixedly mounted on the machine tool 1, the extended end of the cylinder 3 is connected to the moving cover 2, the insert rod 4 is mounted on the fixing rod 5, the fixing rod 5 is threadedly connected to the machine tool 1, the threaded section 7 is mounted on the clamping tube 6, the threaded section 7 is threadedly connected to the moving cover 2, the insert rod 4 and the clamping tube 6 are coaxially arranged, the sliding mechanism is cooperatively connected to the clamping tube 6 and the clamping block 8, the tension spring is connected to the clamping block 8, the fitting spring 10 is mounted on the surface of the clamping block 8, and the fitting spring 10 It abuts against the side wall of the insertion rod 4, and the telescopic mechanism is connected to the card tube 6. A plurality of friction grooves 11 are equidistantly provided on the side wall of the insertion rod 4, and the fitting spring 10 abuts against the friction groove 11. A fillet 12 is provided on the insertion rod 4. The sliding mechanism includes a contraction block 13 and an intermediate spring 14. A plurality of contraction blocks 13 are provided, and the plurality of contraction blocks 13 are respectively and equidistantly installed on the inner wall of the card tube 6. A contraction groove 15 is provided on each contraction block 13, and the card block 8 is slidably connected to the contraction groove 15. The intermediate spring 14 is installed on the card block 8. A plurality of springs 16 are equidistantly provided on the upper end surface of the card block 8, and a limiting ball 101 is respectively connected to each spring 16. A connecting sleeve 17 is coaxially provided on the card tube 6, and a plurality of limiting grooves 18 are equidistantly provided on the lower end surface of the connecting sleeve 17, and a plurality of springs 16 are slidably connected in the limiting groove 18.

[0030] In this embodiment, when it is necessary to drive the movable cover 2 to move, the movable cover 2 is first driven to slide along the machine tool 1 under the action of the cylinder 3, and then the clamping tube 6 can be sleeved on the insertion rod 4. Since the inner wall of the clamping tube 6 is provided with multiple clamping blocks 8, and multiple intermediate springs 14 and fitting springs 10 are installed on the clamping block 8, the insertion tube is clamped on the side walls of the intermediate spring 14 and the fitting spring 10, so it can be fixed and clamped. When it is necessary to adjust the clamping force, the clamping block 8 is driven to move along the shrinking block 13 through the threaded sleeve 19, so that the multiple clamping blocks 8 slide along the shrinking groove 15, so that the positions of the multiple clamping blocks 8 along the axis can be changed, and then the clamping force is adjusted to ensure the sealing effect.

[0031] See also Figure 4 and Figure 5 As an implementation of the telescopic mechanism: the telescopic mechanism includes a threaded sleeve 19 and a push tube 20, the threaded sleeve 19 is threadedly connected to the side wall of the clamping tube 6, the push tube 20 is coaxially installed on the threaded sleeve 19, an intermediate sleeve 21 is coaxially provided on the connecting sleeve 17, a thrust bearing 22 is sleeved on the intermediate sleeve 21, and the two ends of the thrust bearing 22 respectively abut on the connecting sleeve 17 and the push tube 20, a hexagonal sleeve 23 is threaded on the intermediate sleeve 21, and a receiving sleeve 24 is sleeved on the intermediate sleeve 21, and the two ends of the receiving sleeve 24 respectively abut on the push tube 20 and the hexagonal sleeve 23, and a hexagonal groove 25 is opened on the hexagonal sleeve 23.

[0032] More specifically, when the position of the clamping block 8 needs to be adjusted, since the threaded sleeve 19 is threadedly connected to the clamping tube 6, the push tube 20 can be driven to move. Since thrust bearings 22 and receiving sleeves 24 are respectively installed at both ends of the push tube 20, and one end of the receiving sleeve 24 is limited by a hexagonal sleeve 23, the connecting sleeve 17 can move with the threaded sleeve 19 without rotating. Since the limiting ball 101 is slidably connected in the limiting groove 18 and is connected between the clamping block 8 and the limiting ball 101 through the spring 16, it can be ensured that the clamping block 8 moves accordingly, thereby ensuring the adjustment of the clamping force.

[0033] In summary, when the overall equipment is in use or running: when it is necessary to drive the movable hood 2 to move, the movable hood 2 is first driven to slide along the machine tool 1 under the action of the cylinder 3, and then the clamping tube 6 can be sleeved on the insertion rod 4. Since the inner wall of the clamping tube 6 is provided with multiple clamping blocks 8, and multiple intermediate springs 14 and fitting springs 10 are installed on the clamping block 8, the insertion tube is clamped on the side walls of the intermediate spring 14 and the fitting spring 10, so it can be fixed and clamped. When it is necessary to adjust the clamping force, the clamping block 8 is driven to move along the shrinkage block 13 through the threaded sleeve 19, so that the multiple clamping blocks 8 slide along the shrinkage groove 15, so that the positions of the multiple clamping blocks 8 along the axis can be changed, and then the clamping force is adjusted to ensure the sealing effect.

[0034] When the position of the clamping block 8 needs to be adjusted, since the threaded sleeve 19 is threadedly connected to the clamping tube 6, the push tube 20 can be driven to move. Since thrust bearings 22 and receiving sleeves 24 are respectively installed at both ends of the push tube 20, and one end of the receiving sleeve 24 is limited by a hexagonal sleeve 23, the connecting sleeve 17 can move with the threaded sleeve 19 without rotating. Since the limiting ball 101 is slidably connected in the limiting groove 18 and is connected between the clamping block 8 and the limiting ball 101 through the spring 16, it can be ensured that the clamping block 8 moves accordingly, thereby ensuring the adjustment of the clamping force.

[0035] 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 pneumatically opened observation cover for a drilling and milling machine, comprising a machine tool (1), the machine tool (1) being mounted on an external device, and characterized in that: The machine tool (1) is provided with a fixing mechanism, which comprises a moving cover (2), a cylinder (3), an insertion rod (4), a fixing rod (5), a clamping tube (6), a threaded section (7), a clamping block (8), a sliding mechanism, a tension spring (9), a fitting spring (10) and a telescopic mechanism. The moving cover (2) is slidably connected to the machine tool (1), the cylinder (3) is fixedly mounted on the machine tool (1), the extended end of the cylinder (3) is connected to the moving cover (2), the insertion rod (4) is mounted on the fixing rod (5), The fixed rod (5) is threadedly connected to the machine tool (1), the threaded section (7) is installed on the clamping tube (6), the threaded section (7) is threadedly connected to the movable cover (2), the insertion rod (4) and the clamping tube (6) are coaxially arranged, the sliding mechanism is cooperatively connected to the clamping tube (6) and the clamping block (8), the tension spring is connected to the clamping block (8), the fitting spring (10) is installed on the surface of the clamping block (8), the fitting spring (10) abuts against the side wall of the insertion rod (4), and the telescopic mechanism is cooperatively connected to the clamping tube (6).

2. The pneumatically opened observation cover of a drilling and milling machine according to claim 1 is characterized in that: A plurality of friction grooves (11) are equidistantly provided on the side wall of the insertion rod (4), the fitting spring (10) abuts against the friction groove (11), and a rounded corner (12) is provided on the insertion rod (4).

3. The pneumatically opened observation cover of a drilling and milling machine according to claim 2 is characterized in that: The sliding mechanism comprises a contraction block (13) and an intermediate spring (14). A plurality of the contraction blocks (13) are provided, and the plurality of contraction blocks (13) are respectively and equidistantly mounted on the inner wall of the clamping tube (6). A contraction groove (15) is provided on each of the contraction blocks (13). The clamping block (8) is slidably connected to the contraction groove (15), and the intermediate spring (14) is mounted on the clamping block (8).

4. The pneumatically opened observation cover of a drilling and milling machine according to claim 3 is characterized by: A plurality of springs (16) are equidistantly arranged on the upper end surface of the clamping block (8), and each of the springs (16) is respectively connected to a limiting ball (101).

5. The pneumatically opened observation cover of a drilling and milling machine according to claim 4 is characterized in that: A connecting sleeve (17) is coaxially arranged on the clamping tube (6), a plurality of limiting grooves (18) are equidistantly arranged on the lower end surface of the connecting sleeve (17), and a plurality of springs (16) are slidably connected in the limiting grooves (18).

6. The pneumatically opened observation cover of a drilling and milling machine according to claim 5 is characterized by: The telescopic mechanism comprises a threaded sleeve (19) and a push tube (20), wherein the threaded sleeve (19) is threadedly connected to the side wall of the clamping tube (6), and the push tube (20) is coaxially mounted on the threaded sleeve (19).

7. The pneumatically opened observation cover of a drilling and milling machine according to claim 6 is characterized by: An intermediate sleeve (21) is coaxially arranged on the connecting sleeve (17), a thrust bearing (22) is sleeved on the intermediate sleeve (21), and two ends of the thrust bearing (22) respectively contact the connecting sleeve (17) and the thrust pipe (20).

8. The pneumatically opened observation cover of a drilling and milling machine according to claim 7 is characterized in that: The middle sleeve (21) is threadedly provided with a hexagonal sleeve (23), the middle sleeve (21) is sleeved with a receiving sleeve (24), the two ends of the receiving sleeve (24) respectively abut against the push tube (20) and the hexagonal sleeve (23), and the hexagonal sleeve (23) is provided with a hexagonal groove (25).

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