High-integration power driving module for translation hollow electric clamping jaw

Abstract

The utility model discloses a high-integration power driving module for a translational hollow electric clamping jaw. The high-integration power driving module comprises a middle gear ring, a vertical duplicate gear, a worm and a rotary driving unit, the n vertical duplicate gears are arranged around the middle gear ring, and n is a natural number larger than or equal to 2; gear ring straight teeth and a gear ring worm gear are respectively arranged on the outer sides of the upper part and the lower part of the middle gear ring; the worm and the rotary driving unit are both arranged on the side portion of the gear ring worm gear, the rotary driving unit is connected with the worm and used for driving the worm to rotate, the worm is meshed with the gear ring worm gear, the vertical duplicate gear comprises a small gear and a large gear which are coaxial up and down and fixedly connected, and the large gear is arranged on the outer side of the gear ring straight teeth and meshed with the gear ring straight teeth; one side of each pinion is provided with a rack sliding clamping block which slides close to or far away from the center of the middle gear ring. Compared with the prior art, when the hollow electric clamping jaw is applied to the hollow electric clamping jaw, the requirements for miniaturization and high load capacity of the hollow electric clamping jaw can be met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hollow electric claw drive device technical field, especially relate to a kind of for high integration power drive module of translational hollow electric clamping jaw. BACKGROUND

[0002] Hollow electric claw is a kind of hollow structure electric clamping jaw, the electric clamping jaw is powered by motor, and the drive claw opens and closes, and its drive device is used to convert the rotary power of motor into the horizontal opening and closing action of clamping jaw.

[0003] In prior art, Chinese patent CN212094397U discloses a four-jaw double-motion hollow electric chuck, which comprises a mounting seat, a driving device, a clamping device and a dustproof device. The driving device comprises a driving assembly and a transmission assembly, and the transmission assembly comprises a driving gear plate and a driven gear plate. The clamping device comprises a rotating seat, a clamping assembly and a control assembly. The dustproof device is fixed on the rotating seat. The rotating seat is arranged on the mounting seat. The clamping assembly and the driving assembly are arranged at the front and rear ends of the rotating seat respectively. The driving assembly drives the rotating seat to rotate through the transmission mode of the driving gear plate and the driven gear plate, thereby realizing the rotation of the clamping assembly. At the same time, the four clamping jaws in the clamping assembly realize the clamping and fixing of the pipe material through the separately configured control assembly.

[0004] The driving structure of the hollow electric chuck is as follows: the motor drives the hollow gear set to rotate through a straight gear or bevel gear. The hollow gear set drives the multiple bevel gears arranged around its lower part to rotate synchronously, realizes the synchronous rotation of the multiple lead screws, and realizes the synchronous extension and retraction of the multiple clamping blocks through the screw-nut transmission of the nut seat and the lead screw.

[0005] The deficiency of the prior art is that the driving structure of the hollow electric chuck has a large transverse dimension, low space utilization, limited retraction stroke of the clamping block, and cannot clamp smaller objects. It lacks torque increase setting and has low overall load capacity. That is, the overall performance of the driving structure of the hollow electric chuck is poor, and it lacks market competitiveness. It cannot be applied to hollow electric claws with small size and high load capacity.

[0006] Therefore, it is necessary to provide a new high-integration power drive module for translational hollow electric clamping jaw to solve the above technical problems. SUMMARY

[0007] (I) Technical problem to be solved

[0008] Based on this, the utility model provides a kind of for high integration power drive module of translational hollow electric clamping jaw to solve the technical problems, such as poor performance, such as volume and insufficient load capacity of hollow electric clamping jaw in prior art.

[0009] (II) Technical scheme

[0010] To solve the above technical problems, the utility model provides a kind of high integration power drive module for translational hollow electric clamping jaw, including intermediate gear ring, vertical double gear, worm and rotary drive unit;The number of vertical double gear is n, and n The vertical double gear is arranged around the intermediate gear ring, and n is the natural number of ≥2;The upper and lower parts of the intermediate gear ring are respectively provided with gear ring straight teeth and gear ring worm gear;The worm and rotary drive unit are all arranged in the side of gear ring worm gear, and the rotary drive unit is connected with the worm and is used to drive the rotation of the worm, and the worm is engaged with gear ring worm gear, and the vertical double gear includes coaxially fixedly connected pinion and gear, and the gear is arranged outside gear ring straight teeth and is engaged with gear ring straight teeth;The side of each pinion is provided with a rack sliding clamp block engaged with the pinion, and the sliding direction of the rack sliding clamp block is close to or away from the center of the intermediate gear ring.

[0011] Preferably, n=3, 3 vertical double gears are evenly arranged around the hollow hole, the side of the rack sliding clamp block close to the pinion is provided with a rack, and the pinion is engaged with the rack sliding clamp block through the rack;The side of the rack sliding clamp block with rack is provided with a toothed surface, the side of the rack sliding clamp block opposite to the toothed surface is provided with a non-toothed surface, one end of the rack sliding clamp block close to the hollow hole is provided with a convex tooth extension block close to the toothed surface, the rack extends to the tooth extension block, the side of the toothed surface close to the non-toothed surface is provided with a recessed tooth avoiding notch, and the rack sliding clamp block includes opening limit state and closing limit state;When the rack sliding clamp block is in opening limit state, the pinion is engaged with the rack on the tooth extension block;When the rack sliding clamp block is in closing limit state, the tooth extension block in one rack sliding clamp block is opposite to the tooth avoiding notch in another rack sliding clamp block adjacent thereto.

[0012] Preferably, the near-center end face is inclined, and the side of the near-center end face close to the toothed surface is inclined to the direction close to the hollow hole to form the tooth extension block;The side of the near-center end face close to the non-toothed surface is inclined to the direction away from the hollow hole to form the tooth avoiding notch.

[0013] Preferably, the near-center end face is a stepped surface, the side of the near-center end face close to the toothed surface extends to the direction close to the hollow hole to form the tooth extension block, and the side of the near-center end face close to the non-toothed surface is recessed to the direction away from the hollow hole to form the tooth avoiding notch.

[0014] Preferably, the rotating driving unit comprises: a motor, a first bevel gear connected with the motor, a second bevel gear engaged with the first bevel gear, and the second bevel gear being connected with the worm, and the rotating axis of the motor being perpendicular to the rotating axis of the worm.

[0015] Preferably, the high-integration power driving module for the translational hollow electric clamping jaw further comprises a power mounting seat in the shape of a right-angle frame as a whole, the power mounting seat comprising a first right-angle mounting rack and a second right-angle mounting rack perpendicular to each other; the motor and the first bevel gear are both mounted on the first right-angle mounting rack, and the second bevel gear and the worm are both mounted on the second right-angle mounting rack; the power mounting seat further comprises a cover plate latched on the second right-angle mounting rack, the cover plate and the second right-angle mounting rack enclosing a rotating member receiving cavity, the worm being received in the rotating member receiving cavity, and the side of the cover plate close to the worm being provided with an engagement opening in communication with the rotating member receiving cavity, and the worm being engaged with the worm gear through the engagement opening.

[0016] Preferably, the high-integration power driving module for the translational hollow electric clamping jaw further comprises two pinion shaft support columns and one mounting rack plate, the three being evenly arranged around the intermediate gear ring; the upper part of each pinion shaft support column is provided with a recessed first mounting hole, and the upper part of the mounting rack plate is provided with a recessed second mounting hole; the lower part of the two vertical double gear wheels extends into the first mounting hole and is rotatably connected with the pinion shaft support column; the lower part of the other vertical double gear wheel extends into the second mounting hole and is rotatably connected with the mounting rack plate; the mounting rack plate is in the shape of a triangular plate as a whole, and is fixedly installed at the top right-angle part of the power mounting seat; the upper surface of the mounting rack plate is flush with the upper part of the pinion shaft support column; and the lower surface of the power mounting seat is flush with the lower part of the pinion shaft support column.

[0017] Preferably, the worm is further provided, at the end close to the second bevel gear, with a torque increasing gear train, the second bevel gear being connected with the worm through the torque increasing gear train; the torque increasing gear train comprises a first spur gear and a second spur gear, the first spur gear being fixed to the side of the second bevel gear away from the first bevel gear and coaxially arranged with the second bevel gear, the second spur gear being fixed to the end of the worm close to the second bevel gear and coaxially arranged with the worm, the first spur gear having Z1 teeth, the second spur gear having Z2 teeth, and Z1 < Z2; the number of teeth of the large gear and the gear ring spur gear is the same; the first spur gear and the second spur gear are also mounted on the second right-angle mounting rack and are both received in the rotating member receiving cavity.

[0018] Preferably, the upper part of the rack sliding clamp block is provided with a mounting step and a chuck mounting hole.

[0019] Preferably, the intermediate gear ring comprises a first circular ring body, a second circular ring body and a third circular ring body connected in sequence from top to bottom; the gear ring straight teeth are arranged on the outside of the first circular ring body, and the gear ring worm gear is arranged on the outside of the third circular ring body; the inner diameter of the second circular ring body is greater than the inner diameter of the first circular ring body, the inside of the intermediate gear ring is provided with a bearing mounting step, the bearing mounting step is located at the connection between the second circular ring body and the first circular ring body, the inside of the bottom of the third circular ring body is provided with a recessed flange mounting ring groove, and the high-integration power drive module for the translational hollow electric clamping jaw further comprises a first bearing, a bearing spacer, a second bearing and a flange ring arranged in sequence from top to bottom in the intermediate gear ring; the upper part of the first bearing is in abutment with the bearing mounting step, the inside of the upper part of the flange ring is in abutment with the lower part of the second bearing, the flange ring is fixedly installed in the flange mounting ring groove, and the bottom of the flange ring is flush with the bottom of the third circular ring body.

[0020] (Three) beneficial effects

[0021] Compared with the prior art, the overall transverse size is small, and the space on the outside of the intermediate gear ring is fully utilized. The rack sliding clamp block is located above the intermediate gear ring and can extend into the hollow hole when retracted. The rack sliding clamp block or the clamp fingers located directly above the rack sliding clamp block can meet the clamping requirements without the need to set the clamp fingers with the retracting structure, and the stress effect is good during clamping. Therefore, when the utility model is applied to the hollow electric clamping jaw, the market demand for miniaturization and high load capacity of the hollow electric jaw can be met, and the market competitiveness of the hollow electric jaw is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0023] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0024] Figure 2 It is a part structure schematic diagram (shelf cover plate moves out) of the utility model;

[0025] Figure 3 It is a top view schematic diagram of the utility model Figure 1 (The proximal end face is an inclined plane);

[0026] Figure 4The utility model discloses a top view schematic diagram Figure 2 (The proximal end surface is a step surface);

[0027] Figure 5 The utility model discloses an application state three -dimensional schematic diagram (rack slide clamp block is in open state);

[0028] Figure 6 The utility model discloses an application state sectional view schematic diagram.

[0029] Mark explanation:

[0030] 01, upper shell, 02, lower shell, 03, hollow hole, 04, drive module contains cavity, 05, clamping finger, 06, sliding groove, 07, mounting ring,

[0031] 1, intermediate gear ring, 2, vertical double gear, 3, worm, 4, rotary drive unit, 5, first spur gear, 6, second spur gear, 7, rack slide clamp block, 8, power mounting seat, 10, mounting frame plate, 011, first bearing, 012, bearing spacer sleeve, 013, second bearing, 014, flange ring, 0121, fixed screw hole,

[0032] 11, first circular ring body, 12, second circular ring body, 13, third circular ring body, 14, bearing mounting step,

[0033] 21, pinion, 22, gear,

[0034] 41, motor, 42, first bevel gear, 43, second bevel gear,

[0035] 71, rack, 72, mounting step, 73, chuck mounting hole, 74, toothed surface, 75, toothless surface, 76, proximal end surface, 77, tooth part extension block, 78, tooth part avoidance notch,

[0036] 81, first right-angle mounting bracket, 82, second right-angle mounting bracket, 83, frame cover plate, 84, rotary part contains cavity, 85, meshing mouth,

[0037] 101, second mounting hole,

[0038] 111, gear ring straight teeth,

[0039] 121, tool probe hole,

[0040] 131, gear ring worm wheel, 132, flange mounting ring groove. DETAILED DESCRIPTION

[0041] For the above purposes, features and advantages of the present application to be more apparent and understandable, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, a number of specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different manners other than those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific implementation disclosed below.

[0042] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. Figures 1-6 The high-integration power drive module for the hollow electrically-driven clamping jaw is further described.

[0043] The utility model discloses a kind of high-integration power drive modules for hollow electrically-driven clamping jaw, including intermediate gear ring 1, vertical double gear 2, worm 3 and rotary drive unit 4;The number of vertical double gear 2 is n, and n vertical double gear 2 is arranged around intermediate gear ring 1, and n is natural number of ≥2;The upper and lower parts of intermediate gear ring 1 are respectively provided with gear ring straight teeth 111 and gear ring worm 131;Worm 3 and rotary drive unit 4 are all arranged in the side of gear ring worm 131, and rotary drive unit 4 is connected with worm 3 and is used to drive worm 3 rotation, worm 3 is engaged with gear ring worm 131, vertical double gear 2 includes coaxially and fixedly connected pinion 21 and gear 22, gear 22 is arranged on the outer side of gear ring straight teeth 111 and is engaged with gear ring straight teeth 111;One rack sliding clamp block engaged with pinion 21 is arranged on the side of each pinion 21, and the sliding direction of rack sliding clamp block is close to or away from the center of intermediate gear ring 1.

[0044] The technical problem to be solved by the present application is how to design the power drive device structure of the hollow electric claw to realize multi-center clamping while minimizing the size of the power drive device and ensuring the load capacity of the electric claw.

[0045] The high-integration power driving module for the translational hollow electric clamping jaw of the embodiment is installed in a shell for use, the upper part of the shell has guide grooves for guiding the sliding of the rack sliding clamping blocks, the center of the shell is provided with a hollow hole 03 penetrating through the shell in the up-down direction, the top of the shell is provided with n sliding grooves 06 arranged around the hollow hole 03 and respectively communicating with the hollow hole 03, and the shell is provided with a driving module accommodating cavity 04 arranged around the hollow hole 03. In the power driving device of the embodiment, the n rack sliding clamping blocks are arranged in the n sliding grooves 06 one by one; and other components are arranged in the driving module accommodating cavity 04. The driving module accommodating cavity 04 is provided with a raised mounting ring 07, the mounting ring 07 encloses the lower part of the hollow hole 03, the intermediate gear ring 1 is sleeved outside the mounting ring 07, and the intermediate gear ring 1 is rotationally connected with the mounting ring 07.

[0046] The appearance shape of the shell can be selected according to specific requirements, and can be a cylindrical shell or a polygonal shell, or a structure combining the two. The overall size of the shell matches the size of the power driving device, the larger the power driving device, the larger the volume of the shell; on the contrary, the smaller the volume of the shell. The size of the shell determines the overall volume of the utility model. Therefore, the focus of optimizing the volume of the utility model is how to design the structure of the power driving module to achieve the required functions and reduce the volume of the power driving module.

[0047] The sliding groove 06 is used for providing sliding guidance for the rack sliding clamping block 7 and ensuring that the rack sliding clamping block 7 slides in a preset direction. The rack sliding clamping block 7 can be directly used as a workpiece clamping jaw, and a clamping finger 05 matched with the workpiece to be clamped can be additionally installed on the upper part of the rack sliding clamping block 7 according to requirements.

[0048] The rotary driving unit 4 is used for providing rotary power to drive the worm 3 to rotate.

[0049] In the embodiment, the upper part of the intermediate gear ring 1 comprises gear ring straight teeth 111, and the lower part comprises a gear ring worm 131. With this structure, the worm 3 and the rotary driving unit 4 are arranged on the side of the gear ring worm 131, and the vertical double gear 2 is arranged outside the gear ring straight teeth 111. The finally formed overall structure is that the driving part (worm 3 and rotary driving unit 4) and the vertical double gear 2 are respectively arranged around the intermediate gear ring 1, and are arranged in an up-down manner. This structure layout is compact and reasonable, and can reduce the occupied space of the power driving device.

[0050] The lower part of the intermediate gear ring 1 is arranged as a gear ring worm 131, and is meshed with the worm 3 to form a worm and gear transmission structure. With this structure, the following beneficial effects are achieved:

[0051] First, since the worm 3 is in the shape of a rod, it is engaged on one side of the ring gear worm wheel 131, and when it is engaged with the ring gear worm wheel 131, the increased transverse space occupied by the power driving device is small.

[0052] Second, the transmission direction of the force can be changed, so that the rotary driving unit 4 can be arranged on one side of the ring gear worm wheel 131, without increasing the vertical space occupied by the power driving device. Therefore, the volume of the power driving device can be further reduced.

[0053] Third, according to the transmission ratio calculation formula of the worm gear transmission structure, the structure of using the worm 3 to drive the ring gear straight teeth 111 to rotate can obtain a larger reduction ratio, and through the structure, the rotational speed provided by the rotary driving unit 4 can be reduced, and the rotational torque of the intermediate ring gear 1 is increased. The torque is transmitted to the pinion 21 which rotates synchronously with the large gear 22, if the number of teeth of the large gear 22 is the same as that of the ring gear straight teeth 111, if the transmission loss is not considered, the torque obtained by the pinion 21 is the same as that obtained by the worm gear after the torque is increased. The pinion 21 obtains a larger torque and drives the rack sliding clamp 7 to slide, the rack sliding clamp 7 has a larger clamping force, and finally the high-integration power driving module for the translational hollow electric clamping jaw has a higher load capacity.

[0054] In the embodiment, the power of the lower ring gear straight teeth 111 is transmitted to the upper rack sliding clamp 7 by the vertical double gear 2. The outer diameter of the pinion 21 which is in the same horizontal plane as the rack sliding clamp 7 is smaller than the outer diameter of the lower large gear 22. Since the horizontal space occupied by the rack sliding clamp 7 and the pinion 21 directly affects the horizontal size of the upper part of the machine shell, the outer diameter of the pinion 21 is smaller, which is beneficial to reduce the horizontal size of the upper part of the machine shell, thereby further reducing the overall volume of the utility model.

[0055] The working process of the utility model will be described below: the rotary driving unit 4 rotates to drive the worm 3 to rotate, under the meshing action of the worm 3 and the ring gear worm wheel 131, the intermediate ring gear 1 rotates as a whole, the ring gear straight teeth 111 drive the plurality of large gears 22 on the outer side to rotate synchronously, and the pinion 21 rotates synchronously with the large gear 22, so that the plurality of rack sliding clamps 7 are synchronously contracted, and the workpiece is clamped and centered.

[0056] Compared with the prior art, the overall transverse size is small, and the outside space of the intermediate gear ring 1 is fully utilized. The rack sliding clamp block 7 is located above the intermediate gear ring 1 and can extend into the hollow hole 03 when retracted. The rack sliding clamp block 7 or the clamp fingers 05 located directly above the rack sliding clamp block 7 can meet the clamping requirement, and the clamp fingers 05 of the retracted structure do not need to be set, and the stress effect is good during clamping. Therefore, when the utility model is applied to the hollow electric clamping jaw, the market demand for miniaturization and high load capacity of the hollow electric claw can be met, and the market competitiveness of the hollow electric claw is greatly improved.

[0057] According to the specific embodiment of the utility model, n=3, the three vertical double gear wheels 2 are evenly arranged around the hollow hole 03, the rack sliding clamp block 7 is provided with a rack 71 on the side close to the pinion 21, and the pinion 21 is engaged with the rack sliding clamp block 7 through the rack 71;The side surface of the rack sliding clamp block 7 with the rack 71 is provided with a toothed surface 74, the side surface of the rack sliding clamp block 7 opposite to the toothed surface 74 is provided with a toothless surface 75, one end surface of the rack sliding clamp block 7 close to the hollow hole 03 is provided with a near-center end surface 76, the side of the near-center end surface 76 close to the toothed surface 74 is provided with a convex tooth part extension block 77, the rack 71 extends to the tooth part extension block 77, the side of the near-center end surface 76 close to the toothless surface 75 is provided with a concave tooth part avoiding notch 78, and the rack sliding clamp block 7 includes opening limit state and closing limit state;When the rack sliding clamp block 7 is in the opening limit state, the pinion 21 is engaged with the rack 71 on the tooth part extension block 77;When the rack sliding clamp block 7 is in the closing limit state, the tooth part extension block 77 in one rack sliding clamp block 7 is opposite to the tooth part avoiding notch 78 in the other rack sliding clamp block 7 adjacent to it.

[0058] When n=3, three specified center electric clamping jaws can be formed.

[0059] It should be noted that when considering how to obtain a larger opening and closing stroke structure, the following two limiting conditions need to be considered.

[0060] Limiting condition 1: the extension direction of each rack sliding clamp block 7 is opposite to the center of the hollow hole 03, that is, the arrangement direction of the rack sliding clamp block 7 is limited.

[0061] The second limitation condition is that the large gear 22 is determined, and the pinion 21 is coaxial with the large gear 22, that is, the center of the pinion 21 is also determined. It should be noted that, in order to meet the requirement that the pinion 21 is always in meshing with the rack 71, a conventional scheme is to adjust the pinion 21 to a position farther away from the hollow hole 03 than in the above embodiment, and since the pinion 21 and the large gear 22 are coaxial, in order to ensure that the large gear 22 is in meshing with the straight teeth 111 of the gear ring, the outer diameter of the large gear 22 must be increased. Therefore, the conventional scheme (adjusting the pinion 21 to be away from the hollow hole 03) will increase the transverse size of the power drive module, and the overall volume of the device is increased.

[0062] On the basis of the above first and second limitation conditions, in order to obtain a larger opening and closing stroke, the present application adopts the following scheme: the tooth extension block 77 and the tooth avoiding notch 78 are arranged on the near-end face 76. This structure is one of the main points of the present application, through which the length of the rack 71 can be extended, thereby increasing the stroke of the rack sliding clamp block 7, ensuring a long enough opening stroke and closing stroke, and ingeniously solving the above problems through a simple structure. The specific description is as follows:

[0063] When the rack sliding clamp block 7 is in the opening state, the pinion 21 can continue to mesh with the rack 71 on the tooth extension block 77, so as to ensure the opening stroke of the rack sliding clamp block 7. When the rack sliding clamp block 7 is in the closing limit state, the tooth extension block 77 in one rack sliding clamp block 7 is arranged opposite to the tooth avoiding notch 78 in the adjacent other rack sliding clamp block 7, so as to avoid interference and extend the closing stroke.

[0064] Compared with the above conventional scheme of adjusting the pinion 21 to be away from the hollow hole 03, the structure of the present embodiment will not increase the size of the power drive module. Moreover, the opening stroke of the rack sliding clamp block 7 can be extended, and compared with the conventional structure without the tooth avoiding notch 78, the scheme of the present embodiment can extend the retracting stroke of the rack sliding clamp block 7, and can clamp smaller workpieces under the same conditions.

[0065] Please refer to Figure 3 According to the specific embodiment of the present application, the near-end face 76 is an inclined surface, the side of the near-end face 76 close to the toothed surface 74 is inclined to the direction close to the hollow hole 03, so as to form the tooth extension block 77, and the side of the near-end face 76 close to the non-toothed surface 75 is inclined to the direction away from the hollow hole 03, so as to form the tooth avoiding notch 78.

[0066] In the present embodiment, a structure of the rack sliding clamp block 7 is provided, in which the near-end face 76 is arranged as an inclined surface, which is easy to be formed and can form the tooth extension block 77 and the tooth avoiding notch 78 at the same time, and has little influence on the mechanical properties of the rack sliding clamp block 7.

[0067] Please refer to Figure 4 According to the specific embodiment of the utility model, the proximal end face 76 is a stepped face, the proximal end face 76 extends towards the direction close to the hollow hole 03 from the side close to the toothed face 74 to form a tooth portion extension block 77; the proximal end face 76 is recessed from the side close to the non-toothed face 75 towards the direction away from the hollow hole 03 to form a tooth portion avoiding gap 78.

[0068] Another structure of the rack sliding clamping block 7 is provided in the embodiment, in which the proximal end face 76 is a stepped face, the stepped protruding part is the tooth portion extension block 77, and the stepped recessed part is the tooth portion avoiding gap 78. The right-angle connection of the step is rounded to improve the mechanical properties.

[0069] According to the specific embodiment of the utility model, the rotary driving unit 4 comprises: a motor 41, a first bevel gear 42 connected with the motor 41, a second bevel gear 43 meshed with the first bevel gear 42, the second bevel gear 43 being connected with the worm 3, and the rotation axis of the motor 41 being perpendicular to the rotation axis of the worm 3.

[0070] In the embodiment, the motor 41 drives the worm 3 to rotate through a pair of bevel gears, so that the motor 41 and the worm 3 are arranged along two sides of the same right angle and closely surround the side of the gear ring worm wheel 131. By adopting the structure, the space in the circular ring-shaped driving module receiving cavity 04 can be fully utilized, the compactness of the structure is improved, and the volume of the utility model is further reduced.

[0071] According to the specific embodiment of the utility model, the high-integration power driving module for the translational hollow electric clamping jaw further comprises a power mounting seat 8 which is a right-angle frame as a whole, the power mounting seat 8 comprises a first right-angle mounting frame 81 and a second right-angle mounting frame 82 which are perpendicular to each other; the motor 41 and the first bevel gear 42 are both mounted on the first right-angle mounting frame 81, the second bevel gear 43 and the worm 3 are both mounted on the second right-angle mounting frame 82, the power mounting seat 8 further comprises a frame cover plate 83 which is buckled on the second right-angle mounting frame 82, the frame cover plate 83 and the second right-angle mounting frame 82 enclose a rotary piece receiving cavity 84, the worm 3 is received in the rotary piece receiving cavity 84, the side close to the worm wheel of the frame cover plate 83 is provided with an engagement opening 85 which is in communication with the rotary piece receiving cavity 84, and the worm 3 is engaged with the worm wheel through the engagement opening 85.

[0072] In the embodiment, the right-angle frame-shaped power mount 8 provides two vertical direction support bases and a rotating installation base for realizing smooth installation of the motor 41, the first bevel gear 42, the second bevel gear 43, the first spur gear 5, the second spur gear 6 and the worm 3. The motor 41 and the first bevel gear 42 are integrated on the first right-angle mount 81, and the second bevel gear 43 and the worm 3 are installed on the second right-angle mount 82, which is beneficial to form a modular structure. In use, the first right-angle mount 81 and the second right-angle mount 82 are each provided with an installation hole at the bottom, which facilitates fixed installation of the power mount 8. The worm 3 is accommodated in the rotating part accommodating cavity 84, which can provide protection for the rotating part and is beneficial to accommodate lubricating grease.

[0073] According to the specific embodiment of the utility model, the high-integration power drive module for the translational hollow electric clamping jaw further comprises two tooth shaft support columns (not shown in the figure) and one mounting plate 10, the three are uniformly arranged around the middle gear ring 1, the upper part of each tooth shaft support column (not shown in the figure) is respectively provided with a recessed first mounting hole, and the upper part of the mounting plate 10 is respectively provided with one recessed second mounting hole 101; wherein the lower part of the two vertical double gears 2 extends into the first mounting hole, and the lower part of the vertical double gear 2 is rotationally connected with the tooth shaft support column (not shown in the figure); the lower part of the other vertical double gear 2 extends into the second mounting hole 101, and is rotationally connected with the mounting plate 10; the mounting plate 10 is in the shape of a triangular plate as a whole, and is fixedly installed at the top right angle of the power mount 8; the upper surface of the mounting plate 10 is flush with the upper part of the tooth shaft support column (not shown in the figure); and the lower surface of the power mount 8 is flush with the lower part of the tooth shaft support column (not shown in the figure).

[0074] In the embodiment, the upper parts of the three vertical double gears 2 are rotationally connected with the shell respectively; the upper parts of the three vertical double gears 2 are rotationally connected with the shell through the mounting plate 10 and the two tooth shaft support columns (not shown in the figure) respectively.

[0075] The mounting plate 10 is in the shape of a plate, on the one hand, the overall thickness thereof is relatively small, which provides space for the lower part of the power mount 8, and the mounting plate 10 is in the shape of a triangular plate, which is beneficial to stably install at the top right angle of the power mount 8.

[0076] In the embodiment, the power mount 8 also serves as a support base of the mounting plate 10. When the lower part of one vertical double gear 2 is supported on the mounting plate 10, the power mount 8 can be provided with vertical pressure through the mounting plate 10, which can improve the stability of the position of the power mount 8.

[0077] When in use, the power mounting seat 8 and the pinion shaft support column (not shown in the figure) are respectively fixed to the inner bottom wall of the drive module receiving cavity 04; the lower surface of the power mounting seat 8 is flush with the lower part of the pinion shaft support column (not shown in the figure) and corresponds to the horizontal inner bottom wall of the drive module receiving cavity 04. It should be noted that the casing can be a split structure composed of the upper casing 01 and the lower casing 02, and the pinion shaft support column (not shown in the figure) can be integrally formed with the lower casing 02, so that the stability is better.

[0078] According to the specific embodiment of the utility model, the worm 3 is further provided with a torque increasing train at one end close to the second bevel gear 43, and the second bevel gear 43 is connected with the worm 3 through the torque increasing train; the torque increasing train comprises a first spur gear 5 and a second spur gear 6, the first spur gear 5 is fixed to one side of the second bevel gear 43 away from the first bevel gear 42, and the first spur gear 5 is coaxially arranged with the second bevel gear 43, the second spur gear 6 is fixed to one end of the worm 3 close to the second bevel gear 43, and the second spur gear 6 is coaxially arranged with the worm 3, the number of teeth of the first spur gear 5 is Z1, the number of teeth of the second spur gear 6 is Z2, and Z1 < Z2; the number of teeth of the gear 22 and the gear ring spur gear 111 is the same; the first spur gear 5 and the second spur gear 6 are also mounted on the second right-angle mounting frame 82, and the first spur gear 5 and the second spur gear 6 are also accommodated in the rotating part receiving cavity 84.

[0079] In the embodiment, the first spur gear 5 rotates synchronously with the second bevel gear 43, the second spur gear 6 rotates synchronously with the worm 3, and the torque increasing train is used to realize speed reduction and torque increase. The meshing structure of the worm 3 and the gear ring worm gear 131 in the above embodiment is a one-stage speed reduction and torque increase structure, so that the torque increasing train in the embodiment is a two-stage speed reduction and torque increase structure, and the speed reduction ratio can be further improved by arranging the torque increasing train, so that the rotation speed of the rotating drive unit 4 is finally converted into a lower rotation speed of the pinion gear 21, and the pinion gear 21 obtains a larger torque, so that the utility model has a higher load capacity.

[0080] The number of teeth of the gear 22 and the gear ring spur gear 111 is the same, so that the transmission ratio of the two is 1, and the structure has two advantages. On the one hand, the transmission ratio of 1 makes the meshing at this position not reduce the load capacity of the utility model. On the other hand, it is beneficial to the further optimization of the volume of the utility model. Specifically, the lateral dimension value of the gear 22 increasing in the direction away from the center of the hollow hole 03 is the same as or basically the same as the lateral dimension value of the lower power drive module increasing in the direction away from the center of the hollow hole 03, and when the lower part of the casing adopts a regular cylindrical shell shape, the structure can maximize the use of space and will not increase the volume of the casing due to the accommodation of the gear 22.

[0081] According to the specific embodiment of the utility model, the upper part of the rack sliding clamp block 7 is provided with a mounting step 72 and a chuck mounting hole 73.

[0082] In this embodiment, the mounting step 72 and the chuck mounting hole 73 are used to realize the quick positioning and mounting of the clamping fingers 05. The mounting step 72 is beneficial to the positioning clamping of the clamping fingers 05, and the chuck mounting hole 73 is used for the detachable connection of the clamping fingers 05.

[0083] According to the specific embodiment of the utility model, the intermediate gear ring 1 comprises a first circular ring body 11, a second circular ring body 12 and a third circular ring body 13 connected in sequence from top to bottom; the gear ring straight teeth 111 are arranged on the outer side of the first circular ring body 11, and the gear ring worm wheel 131 is arranged on the outer side of the third circular ring body 13; the inner diameter of the second circular ring body 12 is greater than the inner diameter of the first circular ring body 11, the inner side of the intermediate gear ring 1 is provided with a bearing mounting step 14, the bearing mounting step 14 is located at the connecting position of the second circular ring body 12 and the first circular ring body 11, the bottom inner side of the third circular ring body 13 is provided with a recessed flange mounting ring groove 132, and the high-integration power drive module for the translational hollow electric clamping jaw further comprises a first bearing 011, a bearing spacer sleeve 012, a second bearing 013 and a flange ring 014 arranged in the intermediate gear ring 1 in sequence from top to bottom; the upper part of the first bearing 011 abuts against the bearing mounting step 14, the inner side of the upper part of the flange ring 014 abuts against the lower part of the second bearing 013, the flange ring 014 is fixedly installed in the flange mounting ring groove 132, and the bottom of the flange ring 014 is flush with the bottom of the third circular ring body 13.

[0084] In use, the mounting ring 07 is arranged in the shell, and the intermediate gear ring 1 is sleeved outside the mounting ring 07. In this embodiment, the first bearing 011 and the second bearing 013 are added, so that the intermediate gear ring 1 forms a flexible rotary connection structure. The intermediate gear ring 1 is a stepped ring as a whole, so that the bearing mounting step 14 and the flange mounting ring groove 132 are formed, so that the positioning and mounting of the bearing are realized. The bearing spacer sleeve 012 is used for positioning the first bearing 011 and the second bearing 013, the flange ring 014 is fixedly arranged on the inner side of the lower part of the intermediate gear ring 1 and is used for limiting the second bearing 013, and the bottom of the flange ring 014 is flush with the bottom of the third circular ring body 13, so that the height of the device is not additionally increased, and the structure is compact.

[0085] According to the specific embodiment of the utility model, the side wall of the bearing spacer sleeve 012 is provided with a fixed screw hole 0121 penetrating through the same, and the position corresponding to the fixed screw hole 0121 of the side wall of the second circular ring body 12 is provided with a tool insertion hole 121 penetrating through the same.

[0086] In this embodiment, the tool insertion hole 121 is arranged on the intermediate gear ring 1, so that the threaded connecting piece can smoothly pass through the intermediate gear ring 1 and extend into the fixing screw hole 0121. In use, the threaded connecting piece penetrates through the fixing screw hole 0121 and extends into the mounting ring 07, thereby achieving the fixed connection between the bearing spacer 012 and the mounting ring 07. The inner rings of the bearing spacer 012 and the two bearings (the first bearing 011 and the second bearing 013) are fixed to the shell, and the outer rings of the two bearings (the first bearing 011 and the second bearing 013) and the flange ring 014 rotate synchronously with the intermediate gear ring 1.

[0087] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the term "connection" should be understood broadly, for example, it can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, also can be indirectly connected through intermediate medium, can be the communication inside two elements, also can be "driven connection", that is, through various suitable ways such as belt drive, gear drive or chain wheel drive to carry out power connection. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to specific circumstances.

Claims

1. A high-integrated power drive module for translational movement of hollow electrically powered grippers, characterized in that, The application relates to a high-integration power drive module for a hollow electrically-driven clamping jaw.

2. The high-integrated power drive module for translational hollow electric clamping jaw according to claim 1, characterized in that, The high-integration power drive module for the hollow electrically-driven clamping jaw is installed in a shell, the center of the shell is provided with a hollow hole penetrating through the shell, n=3, three vertical double gear wheels are uniformly arranged around the hollow hole, the side of the rack sliding clamp block close to the pinion is provided with a rack, the pinion is engaged with the rack sliding clamp block through the rack, the side of the rack sliding clamp block with the rack is provided with a toothed surface, the side of the rack sliding clamp block opposite to the toothed surface is provided with a non-toothed surface, the end of the rack sliding clamp block close to the hollow hole is provided with a convex tooth part extension block, the rack extends to the tooth part extension block, the side of the end of the rack sliding clamp block close to the non-toothed surface is provided with a concave tooth part avoiding notch, the rack sliding clamp block comprises an opening limit state and a closing limit state, when the rack sliding clamp block is in the opening limit state, the pinion is engaged with the rack on the tooth part extension block, when the rack sliding clamp block is in the closing limit state, the tooth part extension block in one rack sliding clamp block is opposite to the tooth part avoiding notch in another rack sliding clamp block adjacent to the one rack sliding clamp block.

3. The high-integrated power drive module for translating hollow electrically powered jaws according to claim 2, characterized in that, The end close to the toothed surface of the end close to the hollow hole is inclined to the direction close to the hollow hole to form the tooth part extension block, and the end close to the non-toothed surface of the end close to the hollow hole is inclined to the direction away from the hollow hole to form the tooth part avoiding notch.

4. The high-integrated power drive module for translating hollow electrically powered jaws according to claim 2, characterized in that, The end close to the toothed surface of the end close to the hollow hole is extended to the direction close to the hollow hole to form the tooth part extension block, and the end close to the non-toothed surface of the end close to the hollow hole is recessed to the direction away from the hollow hole to form the tooth part avoiding notch.

5. The high-integrated power drive module for translational hollow electric clamping jaw according to claim 3 or 4, characterized in that, The rotating drive unit comprises a motor, a first bevel gear connected with the motor, a second bevel gear engaged with the first bevel gear, and the second bevel gear is connected with the worm, and the rotating axis of the motor is perpendicular to the rotating axis of the worm.

6. The high-integrated power drive module for translating hollow electrically powered jaws according to claim 5, characterized in that, The high-integration power drive module for the translational hollow electric clamping jaw further comprises a power mounting seat which is a right-angle frame as a whole, the power mounting seat comprises a first right-angle mounting frame and a second right-angle mounting frame which are perpendicular to each other, the motor and the first bevel gear are mounted on the first right-angle mounting frame, the second bevel gear and the worm are mounted on the second right-angle mounting frame, the power mounting seat further comprises a cover plate which is buckled on the second right-angle mounting frame, the cover plate and the second right-angle mounting frame enclose a rotating part receiving cavity, the worm is received in the rotating part receiving cavity, the side of the cover plate close to the worm gear is provided with an engagement opening which is in communication with the rotating part receiving cavity, and the worm is engaged with the worm gear through the engagement opening.

7. The high-integrated power drive module for translating hollow electrically powered jaws according to claim 6, characterized in that, The high-integration power drive module for the translational hollow electric clamping jaw further comprises two tooth shaft support columns and one mounting plate, the three are evenly arranged around the intermediate gear ring, the upper part of each tooth shaft support column is provided with a recessed first mounting hole, and the upper part of the mounting plate is provided with a recessed second mounting hole; wherein the lower part of the two vertical double gears extends into the first mounting hole and is rotatably connected with the tooth shaft support column, the lower part of the other vertical double gear extends into the second mounting hole and is rotatably connected with the mounting plate, the mounting plate is a triangular plate as a whole, and is fixedly installed at the top right angle of the power mounting seat, the upper surface of the mounting plate is flush with the upper part of the tooth shaft support column, and the lower surface of the power mounting seat is flush with the lower part of the tooth shaft support column.

8. The high-integrated power drive module for translating hollow electrically powered jaws according to claim 7, characterized in that, The end of the worm close to the second bevel gear is further provided with a torque increasing gear train, the second bevel gear is connected with the worm through the torque increasing gear train, the torque increasing gear train comprises a first spur gear and a second spur gear, the first spur gear is fixed to the side of the second bevel gear away from the first bevel gear and is coaxially arranged with the second bevel gear, the second spur gear is fixed to the end of the worm close to the second bevel gear and is coaxially arranged with the worm, the number of teeth of the first spur gear is Z1, the number of teeth of the second spur gear is Z2, and Z1 < Z2, the number of teeth of the large gear and the gear ring spur gear is the same, the first spur gear and the second spur gear are also mounted on the second right-angle mounting frame, and the first spur gear and the second spur gear are also received in the rotating part receiving cavity.

9. The high-integrated power drive module for translating hollow power-driven clamping jaws according to claim 8, characterized in that, The upper part of the rack sliding clamping block is provided with a mounting step and a chuck mounting hole.

10. The high-integrated power drive module for translating hollow power-driven clamping jaws according to claim 9, characterized in that, The intermediate gear ring comprises a first circular ring body, a second circular ring body and a third circular ring body connected in sequence from top to bottom; the straight teeth of the gear ring are arranged outside the first circular ring body, and the worm gear of the gear ring is arranged outside the third circular ring body; the inner diameter of the second circular ring body is greater than the inner diameter of the first circular ring body, the inner side of the intermediate gear ring is provided with a bearing mounting step, the bearing mounting step is located at the connection between the second circular ring body and the first circular ring body, the bottom inner side of the third circular ring body is provided with a recessed flange mounting ring groove, the high-integration power drive module for the translational hollow electric clamping jaw further comprises a first bearing, a bearing spacer, a second bearing and a flange ring arranged in the intermediate gear ring in sequence from top to bottom; the upper part of the first bearing is in abutment with the bearing mounting step, the inner side of the upper part of the flange ring is in abutment with the lower part of the second bearing, the flange ring is fixedly installed in the flange mounting ring groove, and the bottom of the flange ring is flush with the bottom of the third circular ring body.

Images