Inner support clamping device for drilling

Abstract

The utility model discloses an inner support clamping device for drilling, and belongs to the technical field of clamping devices. The device mainly comprises a base, a punching mechanism is installed at the top of the base, a rotating table is rotationally connected to the top of the base, a pair of clamping mechanisms is installed at the top of the rotating table, a fixing ring is installed at the top of the base, and an inner gear ring is installed on the inner side wall of the fixing ring; the clamping mechanism comprises a supporting disc, a screw rod and a plurality of inner supporting plates, the multiple inner supporting plates are slidably connected with the top of the supporting disc, the screw rod is rotationally connected with the supporting disc, and the outer side wall of the screw rod is sleeved with a screw sleeve. According to the inner supporting and clamping device for drilling, by adopting double-station arrangement and 180-degree rotation of the rotating table, continuity of drilling operation is achieved, the downtime of the drilling mechanism is shortened, in addition, automatic clamping and releasing of workpieces are achieved through mutual cooperation of an inner gear ring and a transmission gear, the complexity of manual operation is reduced, and the working efficiency is improved. A worker only needs to place or dismount the workpiece after the rotating table rotates each time, and the drilling efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of clamping devices, in particular to an inner support clamping device for drilling. BACKGROUND

[0002] The motor in the crane is an important power equipment, and the motor is used for winding and unwinding the steel cable by rotating the rotor, so that the height of the roller connected with the steel cable and the hook is adjusted. When assembling the motor, the motor is usually arranged in the corresponding motor box, and the motor cover is an important part of the motor box. The clamping mechanism is used for drilling the motor cover during the production process.

[0003] At present, the traditional inner support clamping mechanism usually needs to place the workpiece to be drilled on the workbench first, and then clamps and fixes the workpiece from the inside by using the inner support clamping mechanism, and then drills the workpiece by using the drilling equipment. After the drilling is completed, the inner support clamping mechanism is used to release the limiting of the workpiece and take out the workpiece. In this series of steps, the placing and taking out of the workpiece are time-consuming, and the drilling equipment is in a shutdown state during the placing and taking process, which directly affects the efficiency of the whole drilling operation.

[0004] Therefore, it is necessary to provide an inner support clamping device for drilling to solve the above problems.

[0005] It should be noted that the above information disclosed in the background section is only used to understand the background of the application concept, and therefore, it can contain information that does not constitute prior art. CONTENT OF THE UTILITY MODEL

[0006] Based on the above problems existing in the prior art, the application solves the problem of providing an inner support clamping device for drilling. By adopting the double-station setting and the 180° rotation of the rotating table, the continuity of the drilling operation is realized, the downtime of the drilling mechanism is reduced, and the complexity of manual operation is reduced by the cooperation of the inner gear ring and the transmission gear. The workpiece is automatically clamped and released, and the workpiece is placed or removed after each rotation of the rotating table, thereby improving the drilling efficiency.

[0007] The technical scheme adopted by the application to solve the technical problem is: an inner support clamping device for drilling, comprising a base, a punching mechanism is installed on the top of the base, and a rotating table is rotatably connected to the top of the base, a pair of clamping mechanisms is installed on the top of the rotating table, a fixed ring is installed on the top of the base, and an inner gear ring is installed on the inner side wall of the fixed ring.

[0008] The clamping mechanism comprises a support disc, a screw rod and a plurality of inner support plates, the plurality of inner support plates are in sliding connection with the top of the support disc, the screw rod is in rotary connection with the support disc, a sleeve is arranged on the outer wall of the screw rod, a plurality of connecting rods are in rotary connection with the outer wall of the sleeve, and the plurality of connecting rods are in rotary connection with the plurality of inner support plates.

[0009] The top of the base is further provided with a driving mechanism for driving the rotary table to rotate.

[0010] Further, the bottom of each of the plurality of inner support plates is provided with a sliding block, and the top of the support disc is provided with a plurality of sliding grooves in sliding connection with the sliding blocks.

[0011] Further, the cross section of each of the plurality of inner support plates is in a fan shape.

[0012] Further, the outer wall of each of the plurality of inner support plates is provided with a rubber pad.

[0013] Further, the bottom of the rotary table is provided with a rotating shaft, and the end of the rotating shaft away from the rotary table is in rotary connection with the base.

[0014] Further, the driving mechanism comprises a motor and a driven gear, the motor is installed on the top of the base, the driven gear is fixedly sleeved on the outer wall of the rotating shaft, and the output end of the motor is in key connection with a driving gear in meshing connection with the driven gear.

[0015] The application has the advantages that the inner support clamping device for drilling provided by the application is provided with double stations, and the 180° rotation of the rotary table realizes the continuity of the drilling operation, reduces the downtime of the drilling mechanism, and through the cooperation of the inner gear ring and the transmission gear, the automatic clamping and releasing of the workpiece are realized, the complexity of manual operation is reduced, the worker only needs to place or remove the workpiece after each rotation of the rotary table, and the drilling efficiency is improved.

[0016] In addition to the objects, features and advantages described above, the application has other objects, features and advantages. The application will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings accompanying the specification of the application form a part of the application and serve to provide further understanding of the application, the illustrative embodiments of the application and its description serve to explain the application, and do not constitute an improper limitation on the application.

[0018] In the drawings:

[0019] Figure 1 is a schematic diagram of the overall structure;

[0020] Figure 2 is a schematic view of a partial cross-section structure;

[0021] Figure 3 is a schematic view of a bottom structure of a rotating table;

[0022] Figure 4 is a schematic view of a clamping mechanism.

[0023] In the drawings, various reference numbers refer to various features throughout the figures.

[0024] 1, base; 2, rotating table; 3, clamping mechanism; 31, support disc; 32, inner support plate; 33, screw rod; 34, screw sleeve; 35, connecting rod; 36, transmission gear; 4, punching mechanism; 5, driving mechanism; 51, motor; 52, driving gear; 53, driven gear; 6, fixed ring; 7, rotating shaft; 8, inner ring gear. DETAILED DESCRIPTION

[0025] It should be noted that the embodiments and features in the present application can be combined with each other without conflict. The technical solutions in the embodiments of the present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0026] In order for those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described in detail below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should be within the scope of protection of the present application.

[0027] As shown in Figures 1-4 The present application provides an inner support clamping device for drilling, which comprises a base 1, a punching mechanism 4 is installed on the top of the base 1, and a rotating table 2 is rotatably connected to the top of the base 1, a pair of clamping mechanisms 3 are installed on the top of the rotating table 2, a fixed ring 6 is installed on the top of the base 1, the fixed ring 6 is fixed to the top of the base 1 by bolts, and an inner ring gear 8 is installed on the inner side wall of the fixed ring 6.

[0028] The clamping mechanism 3 comprises a support disc 31, a screw rod 33 and a plurality of inner support plates 32, the support disc 31 is fixed to the top of the rotating table 2 by bolts, the plurality of inner support plates 32 are all in sliding connection with the top of the support disc 31, the screw rod 33 is in rotational connection with the support disc 31, and the screw rod 33 penetrates through the rotating table 2, a screw sleeve 34 is sleeved on the outer side wall of the screw rod 33, a plurality of connecting rods 35 are rotatably connected to the outer side wall of the screw sleeve 34, the plurality of connecting rods 35 are respectively in rotational connection with the plurality of inner support plates 32, a transmission gear 36 is installed at the bottom end of the support disc 31 and is in meshing connection with the inner ring gear 8, and the transmission gear 36 is fixed to the screw rod 33 by nut fastening.

[0029] The base 1 is further provided with a driving mechanism 5 for driving the rotating table 2 to rotate.

[0030] In the embodiment, the device is used for clamping the crane motor cover during drilling process. Specifically, the workpiece to be drilled is sleeved in the clamping mechanism 3, and the workpiece is punched by the punching mechanism 4. After the punching is completed, the rotating table 2 is controlled to rotate 180° by the driving mechanism 5, the positions of the clamping mechanisms 3 are changed, and the punched workpiece and the un-punched workpiece are exchanged with each other. Therefore, the punching mechanism 4 can punch another workpiece in time. During the punching process, the punched workpiece can be removed and the workpiece to be punched can be placed, and the above operation can be repeated to continuously punch the workpiece, shorten the downtime of the punching mechanism 4, and improve the punching efficiency.

[0031] During the counterclockwise 180° rotation of the rotating table 2, the transmission gear 36 can be engaged with the internal gear ring 8 inside the fixed ring 6, so as to control the screw rod 33 to rotate 180° with the rotating table 2 while rotating, drive the screw sleeve 34 to move vertically upward, and control the plurality of inner supporting plates 32 to move outward by the plurality of connecting rods 35, so as to clamp from the inside of the workpiece. When the workpiece to be drilled moves below the punching mechanism 4, the workpiece is in a clamped state. After the drilling is completed, the rotating table 2 is controlled to rotate clockwise 180° by the driving mechanism 5. The transmission gear 36 can be engaged with the internal gear ring 8 inside the fixed ring 6, so as to control the screw rod 33 to rotate 180° with the rotating table 2 while rotating, drive the screw sleeve 34 to move vertically downward, and control the plurality of inner supporting plates 32 to move to the center by the plurality of connecting rods 35, so as to release the workpiece, thereby facilitating the workpiece to be taken by the worker.

[0032] It should be noted that the driving mechanism 5 is used to drive the rotating table 2 to rotate 180°. After each rotation, the machine is stopped for a period of time to rotate the workpiece, and then the driving mechanism 5 is used to drive the rotating table 2 to rotate 180° again. The directions of adjacent two rotations are opposite.

[0033] It should be noted that when the clamping mechanism 3 moves below the punching mechanism 4, the plurality of inner supporting plates 32 are in an expanded state.

[0034] As shown in Figure 4 The bottom of each of the plurality of inner supporting plates 32 is provided with a sliding block, and the top of the supporting disc 31 is provided with a plurality of sliding grooves, and the sliding block is slidably connected with the sliding groove.

[0035] In the embodiment, the movement track of the inner supporting plate 32 is limited to ensure that the plurality of inner supporting plates 32 can expand or contract.

[0036] As shown in Figure 4As shown, the cross-sections of the multiple inner support plates 32 are all arranged in a fan shape.

[0037] In this embodiment, by setting the cross-section of the inner support plate 32 in a fan shape, the inner support plate 32 can fit more closely to the inner wall of the workpiece.

[0038] like Figure 4 As shown, rubber pads are installed on the outer walls of multiple inner support plates 32.

[0039] In this embodiment, by providing a rubber pad on the outer side wall of the inner support plate 32, the workpiece can be protected, avoiding damage to the inner side wall of the workpiece caused by excessive clamping force.

[0040] like Figure 3 As shown, a rotating shaft 7 is installed at the bottom of the rotating table 2. The rotating shaft 7 is fixed to the bottom of the rotating table 2 by welding. The end of the rotating shaft 7 away from the rotating table 2 is rotatably connected to the base 1. The drive mechanism 5 includes a motor 51 and a driven gear 53. The motor 51 is installed on the top of the base 1 and is fixed to the top of the base 1 by bolts. The driven gear 53 is fixedly sleeved on the outer wall of the rotating shaft 7. The output end of the motor 51 is keyed to a drive gear 52 that meshes with the driven gear 53.

[0041] In this embodiment, the drive gear 52 is rotated by starting the motor 51. Under the meshing connection between the drive gear 52 and the driven gear 53, the rotating shaft 7 and the top rotating table 2 can be driven to rotate 180°.

[0042] Working principle:

[0043] The workpiece to be drilled is first placed in the clamping mechanism 3. During the 180° counterclockwise rotation of the rotary table 2, the transmission gear 36 meshes with the internal gear ring 8 inside the fixed ring 6. This meshing causes the screw 33 to rotate simultaneously with the rotary table 2. The rotation of the screw 33 drives the screw sleeve 34 to move vertically upwards. The movement of the screw sleeve 34 controls multiple inner support plates 32 to move outwards via multiple connecting rods 35, thereby clamping the workpiece from the inside. After the workpiece is clamped, the drilling mechanism 4 begins drilling the workpiece. After drilling is completed, the drive mechanism 5 controls the rotary table 2 to rotate 180° clockwise. The meshing of the transmission gear 36 with the internal gear ring 8 causes the screw 33 to rotate and drive the screw sleeve 34 to move vertically downward. The movement of the screw sleeve 34 causes the inner support plate 32 to move towards the center through the connecting rod 35, thereby releasing the clamping of the workpiece and making it easier for the operator to pick it up. While one workpiece is being clamped and punched, another unpunched workpiece can be placed in another clamping mechanism 3. The 180° rotation of the rotary table 2 allows the punched workpiece and the unpunched workpiece to exchange positions. The punching mechanism 4 can immediately punch the new workpiece, while the operator can remove the punched workpiece and place the new workpiece to be punched.

[0044] The above descriptions are only the preferred embodiments of the present application, and are not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An internal bolster clamping device for drilling, comprising a base (1), characterised in that: The base (1) top is provided with a punching mechanism (4), and the base (1) top is rotatably connected with a rotating table (2), the rotating table (2) top is provided with a pair of clamping mechanisms (3), the base (1) top is provided with a fixed ring (6), the inner side wall of the fixed ring (6) is provided with an inner gear ring (8); The clamping mechanism (3) comprises a support disc (31), a screw rod (33) and a plurality of inner support plates (32), a plurality of the inner support plates (32) are slidably connected with the top of the support disc (31), the screw rod (33) is rotatably connected with the support disc (31), and the outer side wall of the screw rod (33) is provided with a screw sleeve (34), the outer side wall of the screw sleeve (34) is rotatably connected with a plurality of connecting rods (35), a plurality of the connecting rods (35) are rotatably connected with a plurality of inner support plates (32), and the bottom of the support disc (31) is provided with a transmission gear (36) which is meshedly connected with the inner gear ring (8). Wherein, the top of the base (1) is also provided with a driving mechanism (5) for driving the rotating table (2) to rotate.

2. A back-up clamping device for use in drilling according to claim 1, characterized in that: The bottom of each of the plurality of inner support plates (32) is provided with a sliding block, and the top of the support disc (31) is provided with a plurality of sliding grooves, and the sliding block is slidably connected with the sliding groove.

3. A back-up clamping device for use in drilling according to claim 1, characterized in that: The cross section of each of the plurality of inner support plates (32) is fan-shaped.

4. The inside support clamping device for drilling according to claim 1, characterized in that: The outer side wall of each of the plurality of inner support plates (32) is provided with a rubber pad.

5. The inside support clamping device for drilling according to claim 1, characterized in that: The bottom of the rotating table (2) is provided with a rotating shaft (7), and the end of the rotating shaft (7) away from the rotating table (2) is rotatably connected with the base (1).

6. An internal bolster clamping device for use in drilling according to claim 1, characterized in that: The driving mechanism (5) comprises a motor (51) and a driven gear (53), the motor (51) is installed to the top of the base (1), the driven gear (53) is fixedly sleeved on the outer side wall of the rotating shaft (7), and the output end of the motor (51) is key-connected with a driving gear (52) which is meshedly connected with the driven gear (53).

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