CN218082750U

CN218082750U - Variable-pitch clamping jaw mechanism

Info

Publication number: CN218082750U
Application number: CN202222491103.5U
Authority: CN
Inventors: 梁存; 皇剑
Original assignee: Suzhou Ruifengda Industrial Technology Co ltd
Current assignee: Suzhou Ruifengda Industrial Technology Co ltd
Priority date: 2022-09-20
Filing date: 2022-09-20
Publication date: 2022-12-20
Anticipated expiration: 2032-09-20

Abstract

The utility model relates to a displacement clamping jaw mechanism belongs to the automatic technical field of production. For solving current gripper mechanism clamping jaw stroke singleness, the compatibility is low, when getting to the clamp of unidimensional material, current mechanism can't carry out the problem that effectively the clamp was got. The mechanism comprises a bracket, a sliding device, a gear transmission device and a power device, wherein the bracket is provided with a through hole which penetrates up and down, and two opposite parallel slide rails are arranged on two sides of the through hole; the sliding device comprises two sliding blocks and two clamping jaws; the two sliding blocks are respectively arranged on the two sliding rails in a sliding manner, the two clamping jaws are respectively arranged on the two sliding blocks, and the two clamping jaws are oppositely arranged; the gear transmission device comprises a driving gear and two racks; the driving gear is rotatably arranged in the through hole, the two racks are respectively and fixedly arranged on the two sliding blocks, and the racks and the driving gear form gear transmission connection; the power device is fixedly arranged at the lower side of the bracket, and the power end of the power device is connected with the driving gear. The mechanism has strong compatibility, convenient adjustment and wide application range of products.

Description

Variable-pitch clamping jaw mechanism

Technical Field

The application relates to a variable-pitch clamping jaw mechanism, and belongs to the technical field of production automation.

Background

The automatic production line is a production organization form for realizing the product technological process by an automatic machine system. It is formed on the basis of further development of a continuous line. The method is characterized in that: the processing object is automatically transferred to another machine by one machine, and the machine automatically processes, loads, unloads, checks, etc.; workers only need to adjust, supervise and manage the production line and do not participate in direct operation; all the machine equipment runs at a uniform pace, and the production process is highly continuous.

On an automatic production line, clamping jaws in various forms are used for clamping materials, and according to different driving modes, air pressure and hydraulic driving are common. The existing clamping jaw mechanism has the defects that the clamping jaw clamping stroke is single, the mechanism compatibility is low, when materials with two or more sizes are clamped, the existing clamping jaw mechanism cannot be used for effectively clamping, a driving device and a limiting device need to be added to realize the stroke adjustment of the clamping jaw, and the production cost is increased. Meanwhile, when the existing clamping jaw mechanism is driven by air pressure, the rigidity of the clamping jaw is weak, the clamping force is small, and materials drop or clamping is unstable easily in the clamping process. The clamping force of the hydraulically-driven clamping jaw mechanism needs to be limited by increasing pressure limiting valves and other elements, so that overlarge or undersize clamping force is avoided, the production cost of the hydraulically-driven clamping jaw mechanism is high, and the later maintenance cost is high, so that the hydraulically-driven clamping jaw mechanism is not suitable for the requirement of an automatic production line.

SUMMERY OF THE UTILITY MODEL

To the problem and not enough that exist among the prior art, the application provides a displacement clamping jaw mechanism through setting up servo motor drive gear transmission to drive gear and two racks constitute gear drive and connect, drive two sliders and carry out in opposite directions or slip dorsad along the slide rail in step, drive two clamping jaws and carry out the work of material clamp. This application mechanism is compatible strong, and the material clamp that can compatible not unidimensional is got, and the mechanism adjustment is convenient, carries out the adjustment of clamping-force through servo motor cooperation speed reducer, and product application scope is wide.

In order to achieve the above purpose, the present application provides the following technical solutions: a variable-pitch clamping jaw mechanism comprises a support, a sliding device, a gear transmission device and a power device, wherein the support is provided with a through hole which penetrates through the support from top to bottom, and two sides of the through hole are provided with two relatively parallel sliding rails; the sliding device comprises two sliding blocks and two clamping jaws; the two sliding blocks are respectively arranged on the two sliding rails in a sliding manner, the two clamping jaws are respectively arranged on the two sliding blocks, and the two clamping jaws are oppositely arranged; the gear transmission device comprises a driving gear and two racks; the driving gear is rotatably arranged in the through hole, the two racks are respectively and fixedly arranged on the two sliding blocks, and the racks and the driving gear form gear transmission connection; the power device is fixedly arranged at the lower side of the bracket, and the power end of the power device is connected with the driving gear; the power end of the power device makes reciprocating rotation movement to drive the driving gear to rotate, and the two racks are driven to slide on the sliding rail in the opposite direction or in the opposite direction, so that the two clamping jaws are driven to clamp materials.

Specifically, the bracket comprises a fixed plate, two slide rails and two slide block mounting plates; the middle part of the fixing plate is provided with a through hole which penetrates through the upper plate body and the lower plate body; the two sliding block mounting plates are slidably mounted on the two sliding rails; the two sliding blocks are respectively and fixedly arranged on the two sliding block mounting plates; the power device is fixedly arranged on the lower side of the fixing plate. The fixing plate is used as an installation carrier of the whole mechanism component, the whole mechanism is simple and compact in structure, the upper side of the fixing plate forms a working space for clamping the clamping jaw, the lower side of the fixing plate forms a component installation space, and the component is convenient to install and debug so as to be convenient for later maintenance.

Specifically, the sliding device further comprises two clamping jaw mounting plates; the two racks are respectively and fixedly arranged on the opposite inner sides of the two sliding blocks, and one sides of the two racks opposite to each other are respectively provided with a transmission gear; the two clamping jaw mounting plates are respectively and relatively fixedly mounted on the sliding block on the upper side of the rack; the two clamping jaws are respectively and fixedly arranged on the clamping jaw mounting plate. The clamping jaw mounting plate is arranged to serve as a mounting carrier of the clamping jaw and can be matched with the sliding block mounting plate, a clamping area of the clamping jaw is separated from a gear rotating area, and the phenomenon that materials enter a gear transmission area to cause damage when the materials are clamped is avoided.

Specifically, a rack adjusting cushion block is fixedly arranged between the rack and the sliding block. The position of installing at the slider to the rack can be realized adjusting through setting up rack adjustment cushion to the rack that realizes different specifications can both be installed, and through the adjustment of rack mounted position, can realize two clamping jaw initial position's adjustment simultaneously, can both press from both sides with the material of compatible different shapes size and get, improves the product suitability of mechanism.

Specifically, the driving gear comprises a driving gear body and a transmission shaft; the transmission shaft is rotatably arranged in the through hole through a bearing, and two ends of the transmission shaft respectively extend out of the upper opening and the lower opening of the through hole; the upper end of the transmission shaft is connected with the driving gear body, and the lower end of the transmission shaft is connected with the power device; the driving gear body is respectively meshed with the transmission gears of the two racks.

Specifically, the power device comprises a rotary motor and a speed reducer; the rotary motor and the speed reducer are connected into a whole and fixedly mounted on the lower side of the fixed plate, and the power end of the rotary motor is rotatably connected with the lower end of the transmission shaft through the speed reducer. Through setting up the speed reducer, realize that the drive power of rotary motor power end passes through the transmission shaft and through the speed reducer output that slows down, increase output torque.

Specifically, the rotary motor is a servomotor. By setting the servo motor as a power source, the rotating angle of the servo motor is adjusted in a parameterization mode, and then the rotating angle is converted into the adjustment of the sliding distance of the clamping jaw, so that the clamping stroke of the clamping jaw is controlled. The mechanism is convenient to adjust and simple to operate.

Compared with the prior art, the beneficial effect of this application lies in:

1. this application sets up the slider respectively through the both sides at the support through-hole, constitutes gear drive through setting up the rack and rotating the drive gear who installs in the through-hole on the slider and be connected to install the clamping jaw on the slider, can satisfy and carry out different centre gripping to not unidimensional product, need not to increase the part and carry out the clamping jaw and press from both sides the adjustment of getting the stroke, reduction in production cost, mechanism application scope is wide.

2. This application can carry out parameter adjustment to servo motor as the power supply through setting up servo motor to realize servo motor rotation angle's control, and then control two sliders and drive the clamping jaw and press from both sides the adjustment of getting the stroke, compare conventional clamping jaw mechanism and need set up spacing part and carry out the stroke restriction, this application part is small in quantity, low in production cost, and the mechanism's installation is convenient with the debugging, and production efficiency is high.

3. This application can realize passing through the speed reducer with servo motor's output power and will export the increase of torque through the speed reducer through setting up the speed reducer to realize the increase of clamping-force, improve the centre gripping stability of mechanism's clamping jaw, avoid among the clamping-process, the material drops or takes place the condition of displacement.

Drawings

FIG. 1 is a schematic structural view of a variable-pitch clamping jaw mechanism of the present embodiment;

FIG. 2 is a top view of the pitch clamp mechanism of the present embodiment;

FIG. 3 is a side view of the structure of the pitch clamp mechanism of the present embodiment (1);

fig. 4 is a structural side view (2) of the variable-pitch gripper mechanism of the present embodiment.

In the figure: 1. a slider; 2. a drive gear; 3. a rack; 4. a slide rail; 5. a fixing plate; 6. a slider mounting plate; 7. a clamping jaw mounting plate; 8. a rack adjusting cushion block; 9. a speed reducer; 10. a servo motor.

Detailed Description

The present application will be further explained with reference to the drawings in the embodiments of the present application.

Referring to fig. 1-4, the embodiment discloses a variable-pitch clamping jaw mechanism, which includes a bracket, a sliding device, a gear transmission device and a power device, wherein the bracket is provided with a through hole penetrating through the bracket from top to bottom, and two opposite parallel sliding rails 4 are arranged on two sides of the through hole; the sliding device comprises two sliders 1 and two jaws (not shown); the two sliding blocks are respectively arranged on the two sliding rails in a sliding manner, the two clamping jaws are respectively arranged on the two sliding blocks 1, and the two clamping jaws are oppositely arranged; the gear transmission device comprises a driving gear 2 and two racks 3; the driving gear 2 is rotatably arranged in the through hole, the two racks 3 are respectively and fixedly arranged on the two sliding blocks 1, and the racks 3 and the driving gear 2 form gear transmission connection; the power device is fixedly arranged at the lower side of the bracket, and the power end of the power device is connected with the driving gear 2; the power end of the power device makes reciprocating rotation movement to drive the driving gear 2 to rotate, and the two racks 3 are driven to slide oppositely or reversely on the sliding rail 4, so that the two clamping jaws are driven to clamp materials.

Further, the bracket comprises a fixed plate 5, two slide rails 4 and two slide block mounting plates 6; the middle part of the fixing plate 5 is provided with a through hole which penetrates through the upper plate body and the lower plate body; the two slide block mounting plates 6 are slidably mounted on the two slide rails 4; the two sliding blocks 1 are respectively and fixedly arranged on the two sliding block mounting plates 6; the power device is fixedly arranged at the lower side of the fixed plate 5. The construction of the stent is realized.

Further, the sliding device also comprises two clamping jaw mounting plates 7; the two racks 3 are respectively and fixedly arranged on the opposite inner sides of the two sliding blocks 1, and one opposite sides of the two racks 3 are respectively provided with a transmission gear; the two clamping jaw mounting plates 7 are respectively and relatively fixedly mounted on the sliding block 1 on the upper side of the rack 3; the two clamping jaws are respectively and fixedly arranged on the clamping jaw mounting plate 7. The construction of the sliding device is realized.

Further, a rack adjusting cushion block 8 is fixedly arranged between the rack 3 and the sliding block 1.

Further, the driving gear 2 includes a driving gear body and a transmission shaft; the transmission shaft is rotatably arranged in the through hole through a bearing, and two ends of the transmission shaft respectively extend out of the upper opening and the lower opening of the through hole; the upper end of the transmission shaft is connected with the driving gear body, and the lower end of the transmission shaft is connected with the power device; the driving gear body is respectively meshed with the transmission gears of the two racks 3. The construction of the drive gear is realized.

Further, the power device comprises a rotary motor and a speed reducer 9; the rotary motor and the speed reducer 9 are connected into a whole and fixedly arranged at the lower side of the fixed plate 5, and the power end of the rotary motor is rotatably connected with the lower end of the transmission shaft through the speed reducer 9. The structure of the power device is realized.

Further, the rotary motor is a servo motor 10.

The working principle is as follows: the variable-pitch clamping jaw mechanism of this embodiment is before work, when the operator takes the product order, according to treating the shape of pressing from both sides the material of getting, the installation of the rack adjustment cushion on two sliders is carried out earlier, and then two slider initial position of predetermination, guarantee that two clamping jaws can correctly carry out effective clamp to the material and get, again according to the weight of material, adjust servo motor's parameter, in order to carry out motor rotation angle's adjustment, guarantee that the slider drives the clamping jaw and gets after getting the material, little stroke slip carries out again, fasten the centre gripping to the material, in-process of transferring after satisfying the material clamp and getting can not drop. After setting, an operator starts the mechanism, when the clamping jaw mechanism moves to a material taking station along with the material taking mechanism, the servo motor is started, the driving force is transmitted to a transmission shaft of the driving gear through the speed reducer to drive the driving gear body to rotate, the two racks are driven to slide in opposite directions after gear transmission, then the two sliding blocks are driven to slide in opposite directions along the sliding rail, and the material is clamped by the two clamping jaws. After the material is clamped, the material is transferred to a subsequent station by the material taking mechanism, and the material is clamped.

The embodiments of the present application have been described in detail with reference to the examples, but the present application is not limited to the embodiments, and those skilled in the art can make various equivalent changes and substitutions without departing from the principle of the present application after learning the content of the present application, and these equivalent changes and substitutions should be considered as belonging to the protection scope of the present application.

Claims

1. The utility model provides a variable pitch clamping jaw mechanism, includes support, slider, gear drive and power device, its characterized in that: the bracket is provided with a through hole which penetrates through the bracket from top to bottom, and two opposite parallel slide rails are arranged on two sides of the through hole; the sliding device comprises two sliding blocks and two clamping jaws; the two sliding blocks are respectively installed on the two sliding rails in a sliding mode, the two clamping jaws are respectively installed on the two sliding blocks, and the two clamping jaws are oppositely arranged; the gear transmission device comprises a driving gear and two racks; the driving gear is rotatably arranged in the through hole, the two racks are respectively and fixedly arranged on the two sliding blocks, and the racks and the driving gear form gear transmission connection; the power device is fixedly arranged on the lower side of the bracket, and the power end of the power device is connected with the driving gear; the power end of the power device makes reciprocating rotation movement to drive the driving gear to rotate, and the two racks are driven to slide oppositely or reversely on the sliding rail, so that the two clamping jaws are driven to clamp materials.

2. A variable pitch gripper mechanism according to claim 1, wherein: the bracket comprises a fixed plate, two sliding rails and two sliding block mounting plates; the middle part of the fixing plate is provided with the through hole which penetrates through the upper plate body and the lower plate body; the two sliding block mounting plates are slidably mounted on the two sliding rails; the two sliding blocks are respectively and fixedly arranged on the two sliding block mounting plates; the power device is fixedly arranged on the lower side of the fixing plate.

3. A variable pitch gripper mechanism according to claim 2, wherein: the sliding device further comprises two clamping jaw mounting plates; the two racks are respectively and fixedly arranged on the opposite inner sides of the two sliding blocks, and one opposite sides of the two racks are respectively provided with a transmission gear; the two clamping jaw mounting plates are respectively and relatively fixedly mounted on the sliding blocks on the upper side of the rack; the two clamping jaws are fixedly arranged on the clamping jaw mounting plate respectively.

4. A variable pitch gripper mechanism according to claim 3, wherein: and a rack adjusting cushion block is fixedly arranged between the rack and the sliding block.

5. A variable pitch gripper mechanism according to claim 3, wherein: the driving gear comprises a driving gear body and a transmission shaft; the transmission shaft is rotatably arranged in the through hole through a bearing, and two ends of the transmission shaft respectively extend out of the upper opening and the lower opening of the through hole; the upper end of the transmission shaft is connected with the driving gear body, and the lower end of the transmission shaft is connected with the power device; the driving gear body is respectively meshed with the transmission gears of the two racks.

6. A variable pitch gripper mechanism according to claim 5, wherein: the power device comprises a rotary motor and a speed reducer; the rotary motor and the speed reducer are connected into a whole and fixedly mounted on the lower side of the fixing plate, and the power end of the rotary motor is rotatably connected with the lower end of the transmission shaft through the speed reducer.

7. A variable pitch gripper mechanism according to claim 6, wherein: the rotary motor is a servo motor.