CN214651952U - Grabbing jig - Google Patents

Abstract

The utility model provides a grabbing jig, which comprises a jig mounting plate, a clamping mechanism arranged on the jig mounting plate and a clamping driving mechanism used for driving the clamping mechanism to move; the fixture includes: an upper fixing plate: is arranged on the jig mounting plate; a clamping jaw: the number of the fixing plates is a plurality of, the fixing plates are arranged along the circumference of the upper fixing plate, are connected with the upper fixing plate through shafts and can rotate relative to the upper fixing plate; a driving plate: the second end of the pull rod is connected with the jig mounting plate at intervals; the switching pole: the number of the clamping claws is the same as that of the clamping claws, the first end of the clamping claw is connected with the drive plate in a shaft mode, and the second end of the clamping claw is connected with the clamping claw in a shaft mode; the clamping driving mechanism is connected with the driving plate, so that the driving plate moves towards the direction close to or far away from the jig mounting plate. The drive structure who snatchs the tool has been improved, the cooperation of switching pole and drive plate, through the movement distance of control switching pole and drive plate, the size of opening of steerable gripper jaw to the not unidimensional product of adaptation centre gripping.

Description

Grabbing jig

Technical Field

The utility model relates to a transport machinery technical field, concretely relates to snatch tool.

Background

In the prior art, an electric cylinder or an air cylinder is generally adopted for driving the grabbing jig. The electric cylinder and the air cylinder are used as power sources to be directly connected with and drive the clamping jaws of the grabbing jig, or the clamping jaws are driven through a rod switching structure.

The grabbing jig and the driving structure in the prior art have the following defects:

(1) the opening and closing degree of the clamping jaws is determined by the telescopic distance between the electric cylinder and the air cylinder, so that the opening and closing size of the clamping jaws is difficult to control.

(2) The electric cylinder, the air cylinder and the clamping claw are directly connected, so that the whole length of the jig is large, and the occupied space is large.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the aforesaid technical problem, improve the interlock structure who snatchs the tool.

In order to achieve the above object, the utility model adopts the following technical scheme:

a grabbing jig comprises a jig mounting plate, a clamping mechanism arranged on the jig mounting plate and a clamping driving mechanism used for driving the clamping mechanism to move;

the fixture includes:

an upper fixing plate: is arranged on the jig mounting plate;

a clamping jaw: the number of the fixing plates is a plurality of, the fixing plates are arranged along the circumference of the upper fixing plate, are connected with the upper fixing plate through shafts and can rotate relative to the upper fixing plate;

a driving plate: the second end of the pull rod is connected with the jig mounting plate at intervals;

the switching pole: the number of the clamping claws is the same as that of the clamping claws, the first end of the clamping claw is connected with the drive plate in a shaft mode, and the second end of the clamping claw is connected with the clamping claw in a shaft mode;

the clamping driving mechanism is connected with the driving plate, so that the driving plate moves towards the direction close to or far away from the jig mounting plate.

In some embodiments of the present invention, the clamping driving mechanism includes:

a clamping motor: the power output end of the upper fixing plate is arranged along the direction parallel to the jig mounting plate;

a cam: the first end of the clamping motor is connected with the power output end of the clamping motor;

the clamping mechanism further comprises a pull rod, and a first end of the pull rod is in shaft connection with a second end of the cam.

The utility model discloses in some embodiments, the centre gripping motor is installed on the upper fixed plate through the frame, is provided with the through-hole on upper fixed plate and the tool mounting panel, the pull rod passes the through-hole and is connected with the cam.

The utility model discloses in some embodiments, gripper jaw first end is articulated with the upper fixed plate, and the second tip of clamping jaw is the arc of indent to the direction that gripper jaw arranged the circumference center.

The utility model discloses in some embodiments, the top board includes the body and sets up the bulge that is the circumference range in the body periphery, every gripper jaw first end all with the bulge coupling of top board.

The utility model discloses in some embodiments, be provided with the hole that corresponds with gripper jaw quantity on the tool mounting panel, the gripper jaw passes through the hole, and the size in hole is configured to, is greater than the gripper jaw at the opening and shutting movement distance of hole position.

The utility model discloses in some embodiments, it further includes the frame plate to snatch the tool, the tool mounting panel is further connected lift actuating mechanism, installs on the frame plate for the drive braking mounting panel goes up and down.

In some embodiments of the present invention, the lift driving mechanism includes:

lifting the belt: the lifting device comprises a first lifting belt, a second lifting belt, a third lifting belt and a fourth lifting belt which are arranged on a jig mounting plate in a rectangular shape;

winding a belt wheel shaft: is mounted on the frame plate;

winding the belt wheel: the first lifting belt and the second lifting belt are arranged on the sides close to the first belt winding wheel and the second belt winding wheel and respectively wind the first belt winding wheel and the second belt winding wheel along the same side, and the third lifting belt and the fourth lifting belt are arranged on the sides close to the third belt winding wheel and the fourth belt winding wheel and respectively wind the third belt winding wheel and the fourth belt winding wheel along the same direction of the winding direction of the first lifting belt;

and the jig plate motor is arranged on the frame plate, and the power output end of the jig plate motor is connected with the belt winding wheel shaft.

In some embodiments of the utility model, install the tool counter weight on the tool mounting panel.

In some embodiments of the utility model, the centre gripping motor is the motor that just reverses.

The utility model provides a snatch tool, its beneficial effect lies in:

(1) the drive structure who snatchs the tool has been improved, the cooperation of switching pole and drive plate, through the movement distance of control switching pole and drive plate, the size of opening of steerable gripper jaw to the not unidimensional product of adaptation centre gripping. The clamping device is particularly suitable for clamping tires, and the opening and closing state of the clamping claws can be adjusted according to the sizes of the tire blank openings.

(2) In order to realize the technical effects, the cam structure is further designed, and the driving of different opening and closing states of the clamping claws can be realized by controlling the rotation angle of the cam.

(3) To the tool that snatchs from top to bottom, the technical scheme of this application can save installation space.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

FIG. 1 is a schematic structural view of an intelligent conveying trolley;

FIG. 2 is a schematic view of a road wheel mechanism and its mounting structure;

FIG. 3 is a schematic view of a driving wheel and its mounting structure;

FIG. 4 is a schematic diagram of a jig mounting plate;

FIG. 5 is a schematic view of a clamping mechanism;

FIG. 6 is a schematic view of the puller mechanism;

FIG. 7 is a schematic view of a winding pulley and its mounting structure;

FIG. 8 is a structural diagram illustrating a falling state of the hatch opening jig (not clamped);

FIG. 9 is a structural diagram of the falling state of the hatch opening jig (clamping the green tire);

FIG. 10 is a schematic view of the open position of the basket and its stop structure;

fig. 11 is a view showing the engagement of the lifting basket and the clamping mechanism.

Wherein, in the figures, the respective reference numerals:

1-control the electronic box;

2-a condenser;

3-a single-rail walking track;

401-frame plate, 4011-first through hole, 4012-second through hole, 402-lifting basket, 403-transverse protective frame, 404-longitudinal protective frame, 405-buffer block,

501-driving wheel, 502-driven wheel, 503-walking wheel servo motor,

6-bracket, 601-vertical part, 6021-first flat part, 6022-second flat part, 603-fixed seat, 604-detection piece, 6051-fixed wheel, 6052-eccentric adjusting wheel;

701-jig mounting plate, 7011-hole, 702-upper fixing plate, 7021-bulge, 7022-through hole, 703-clamping jaw, 704-adapter rod, 705-driving plate, 706-clamping motor, 707-cam, 708-pull rod, 709-jig plate motor, 710-lifting belt, 711-belt winding wheel shaft, 7121-first belt winding wheel, 7122-second belt winding wheel, 7023-third belt winding wheel, 7024-fourth belt winding wheel, 713-jig counterweight and 714-photosensitive reaction plate;

8-puller mechanism, 8011-first side fixing seat, 8012-second side fixing seat, 8021-first supporting plate, 8022-second supporting plate, 803-guide block, 804-inertia wheel, 805-detection shaft, 806-support piece and 807-arm component;

9-a balancing weight;

10-brake resistance;

11-a signal receiver;

12-a bobbin;

13-a conduit;

14-positioning blocks;

1501-first lift pulley, 1502-second lift pulley, 1503-tension pulley, 1504-drive shaft, 1505-basket lift motor;

16-a transmission belt;

17-a pipe;

18-hatch door switch detection switch;

19-protection plate;

20-an in-place detection switch;

21-belt breakage detection switch;

23-embryo.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "disposed on," "connected to" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present invention.

The utility model provides an intelligent conveying trolley can be used for the transport of product.

The intelligent conveying trolley comprises a frame mechanism, a control electronic box 1, a condenser 2, a traveling wheel system, a single-rail traveling track 3 and the like.

A frame mechanism: the lifting basket comprises a frame plate 401 and a lifting basket 402, wherein the lifting basket 402 is installed on the frame plate 401 and is matched with the frame plate 401 to form a frame space;

control electronic box 1: the control electrical box 1 is internally provided with power supply equipment and is arranged on the side edge of the lifting basket 402, and the control electrical box 1 is internally provided with a controller for controlling the travelling of the trolley, the lifting of the grabbing jig and the like;

a condenser 2: is arranged at the side of the control electric box 1; after long-term operation, the temperature of the control electric box 1 is too high, which may damage devices in the control electric box 1 and affect the operation of equipment, so that the condenser 2 is additionally arranged on the side surface of the control electric box 1 to cool the devices in the control electric box 1 and ensure that the control electric box 1 is in an optimal state during operation; the control electric box 1 and the condenser 2 are positioned below the frame plate 401, and the area of the frame plate 401 covers the cross sections of the lifting basket, the control electric box 1 and the condenser 2;

a traveling wheel system: the device comprises a driving wheel 501 and a driven wheel 502, wherein the driving wheel 501 and the driven wheel 502 are both arranged on a frame plate 4, and the driving wheel 501 is connected with a walking wheel servo motor 503 and used for providing driving force for the driving wheel 501; the traveling wheels adopt a precision planetary reducer to carry a high-performance servo system, can be started and stopped at any position during operation, and have high positioning precision and repeated positioning precision;

single walking track 3: the driving wheel 501 and the driven wheel 502 are both arranged on the walking track 3 and drive the whole conveying trolley to walk along the walking track 3; the walking track 3 is a single-row walking track, so that the whole space of a trolley system can be saved, and the carrying task can be finished effectively at a high speed.

The structure of the frame mechanism and the traveling wheel system will be described in detail below.

Taking the illustrated direction as an example, the direction of the parallel running rails 3 is defined as a transverse direction, the frame plate includes two transverse protective frames 403, and the frame plate 401 is disposed between the two transverse protective frames 403. To enhance the fixing structure of the frame structure, longitudinal protective frames 404 may be provided between the transverse frames, and a plurality of reinforcing ribs may be provided on the frame plate. The shield is mounted below the frame plate.

The frame mechanism is provided with a brake resistor 10 which can be specifically arranged on the side edge of the transverse protective frame 403 and connected with a circuit of the controller and the driving wheel servo motor 503, and redundant energy can be dissipated in the form of heat when the trolley runs and decelerates, so that the servo system is in the optimal running state.

Above the frame plate 401, a weight 9 and a signal receiver 11 are mounted. Wherein, the effect of counter weight 9 lies in the operation of stabilizing the dolly, and under the dolly high-speed running situation, can produce by the influence of gravity and acceleration and rock, increases the counter weight and reaches the equilibrium effect with the solid barycenter of dolly, overcomes the dolly and receives the gravity and rock with higher speed production when high-speed operation, and the dolly that makes stops also can the even running opening in the twinkling of an eye. The signal receiver 11 has a wireless communication function and can receive a remote control command.

The frame mechanism is built by high-strength aluminum alloy, the weight of the trolley can be reduced, energy consumption can be reduced, the whole frame cannot generate hard deformation in a high-speed running state, the running speed requirements of the 4.5/s speed and the 2.5m/s2 acceleration of the conveying system are met, high-speed running is completed, and the beat requirement is met.

The outer sides of the two longitudinal protective beams 404 are provided with buffer blocks 405 which can be made of rubber. When a plurality of trolleys run on the running track simultaneously, the buffer block 405 can effectively prevent the inertia force generated by sudden collision, and reduce the possibility of damage of the trolleys.

The following describes the structure of the running wheel system in detail.

Taking the driving wheel 501 as an example, the driving wheel 501 is a rubber covered wheel, and a walking wheel servo motor 503 and a speed reducer are installed on the shaft portion of the driving wheel 501.

The drive wheel 501 is mounted on a carrier mechanism comprising a carrier body comprising two spaced apart carriers, each carrier comprising a vertical portion 601 and two spaced apart flat portions on the vertical portion 601, defined as a first flat portion 6021 above and a second flat portion 6022 below. A driving wheel fixing seat 603 is arranged between the vertical parts 601 of the bracket, and the driving wheel 501 is arranged on the fixing seat 603, can rotate relative to the fixing seat 603 and can also stably run on the annular track. The fixing seat 603 is mounted on the bracket body through bolts, so that the disassembly and maintenance are convenient. The fixed seat 603 is provided with a detection piece 604, which can be a detection switch, a proximity switch, etc. The detection part 604 can be used for assisting in detecting the walking position of the trolley, facilitating the operation and controlling the actual working condition of the trolley, and increasing the safety.

Wheel sets are mounted on the first flat portion 6021 and the second flat portion 6022 of each bracket, and the wheel sets on the two flat portions are arranged oppositely. Each wheel set includes a fixed wheel 6051 fixedly mounted on the bracket, and an eccentric adjusting wheel 6056 arranged at an interval with the fixed wheel 6051, wherein the eccentric adjusting wheel 6056 can be adjusted in position in a direction approaching or departing from the fixed wheel 6051. The single traveling rail 3 is an i-shaped rail, when the trolley is installed on the single traveling rail, the driving wheel 501 and the driven wheel 502 are located on the upper end surface of the traveling rail 3, the lower end surface of the traveling rail 3 is clamped between the fixed wheel 6051 and the eccentric adjusting wheel 6052 of the lower straight portion, the upper end surface of the traveling rail is clamped between the fixed wheel 6051 and the eccentric adjusting wheel 6052 of the upper straight portion, and the distance between the upper straight portion and the lower straight portion corresponds to the height of the traveling rail. The position of the eccentric adjusting wheel 6052 is adjusted to ensure that the wheel set is stably matched with the wage structure of the walking track 3 to play a role in movement guiding and fixing.

The detection parts 604 are arranged on two sides of the fixed wheel 6051, and the position of the trolley is judged according to the walking position of the fixed wheel 6051.

A connecting plate 606 is further installed between the two straight portions of the brackets, and is arranged at an interval from top to bottom with the fixing seat 603. The connecting plate 606 is provided with a cable support 607, and the cable support 607 comprises a support plate parallel to the connecting plate and vertically below the side of the connecting plate. A shaft sleeve is arranged below the connecting plate. The carriage is mounted on the frame plate 401 of the frame mechanism by means of bushings.

Except for the fixed seat 603, all the parts of the driving wheel bracket mechanism can adopt welding structures, so that the hard deformation between the parts can be reduced.

The mounting structure of the driven wheel 502 is similar to that of the driving wheel 501, and the difference between the driving wheel and the driven wheel is that the driven wheel 502 is not connected with a servo motor and a speed reducer, and the description is omitted.

The structure of the grasping jig is described in detail below.

The grabbing jig comprises a jig mounting plate 701 and a clamping mechanism installed on the jig mounting plate 701, and the jig mounting plate 701 needs to be installed inside the frame structure due to the size.

The clamping mechanism comprises an upper fixing plate 702 arranged on the jig mounting plate 701, a plurality of clamping claws 703 are arranged on the upper fixing plate 702, and the clamping claws 703 are in shaft connection with the upper fixing plate and can rotate relative to the upper fixing plate 702. The upper fixing plate 702 may be fixedly mounted above the jig mounting plate 701, and the jig mounting plate 701 has holes 7011 corresponding to the number of the holding claws 703, and the holding claws 703 pass through the holes 7011. And the size of the hole 7011 is configured to be larger than the opening and closing movement distance of the holding claw 703 at the position of the hole 7011. A clamping driving mechanism is arranged above the jig mounting plate 401, is connected with the clamping mechanism and is used for driving the clamping claws 703 to move.

In the present embodiment, the structure of the gripper will be described by taking the application to the tire field as an example. A first end of each clamping jaw 703 is coupled to the upper fixing plate 702, and a plurality of clamping jaws 703 are circumferentially arranged on the upper fixing plate 702. The upper fixing plate 702 comprises a body and protrusions 7021 circumferentially arranged on the outer periphery of the body, and the first end of each clamping jaw is coupled to the protrusion 7021 of the upper fixing plate 702. The second end of the gripper 703 is in the shape of an arc that is concave towards the center of the circumference of the gripper 703, so that the gripper can be clamped in the tire ring in the open state.

The clamping mechanism further comprises an adapter rod 704, a drive plate 705 and the like. The drive board 705 is disposed at an interval from the jig mounting plate 701, and the drive board 705 is disposed below the jig mounting plate 701. The number of the switching rods 704 corresponds to the number of the clamping jaws 703, each switching rod 704 is hinged to the drive plate 705 and further hinged to the corresponding clamping jaw 703, specifically, a first end of each switching rod 704 is hinged to the drive plate, a second end of each switching rod 704 is hinged to the clamping jaw 703, and the switching rods 704 are circumferentially arranged due to the fact that the clamping jaws 703 are circumferentially arranged. The clamping drive mechanism is coupled to the drive plate to move the drive plate 705.

The clamping driving mechanism comprises a clamping motor 706, a cam 707 and the like, and the clamping mechanism further comprises a pull rod 708; the clamping motor is mounted on the upper fixing plate 702, and the power output end of the clamping motor is arranged in the direction parallel to the jig mounting plate 701. Two wheel parts of the cam 707 are defined as a first end and a second end respectively, the power output end of the clamping motor is connected with the first end of the cam 707, and the first end of the pull rod is connected with the second end of the cam 707 through a shaft; the second end of the pull rod is connected to the drive plate. When the cam 707 rotates, the driving plate 705 is pulled to move toward or away from the jig mounting plate 701, and the pull rod 708 is driven to rotate, so as to drive the clamping claw 703 to open or close.

The clamping motor 706 is mounted on the upper fixing plate 702 through the base, through holes 7022 are formed in the upper fixing plate 702 and the jig mounting plate, and the pull rod 708 penetrates through the through holes to be connected with the cam 707.

In addition to the matching structure of the motor and the cam 707, a driving structure having a telescopic function, such as an air cylinder or an electric cylinder, may be used to control the relative movement between the driving plate and the jig mounting plate 701.

The jig plate motor 709 for driving the jig plate 701 to move is a forward and reverse rotating motor, when the motor is in forward transmission, the clamping claw 703 is retracted, and when the motor is in reverse rotation, the clamping claw 703 extends out and is clamped in the tire ring to grab the tire. The cam 707 mechanism controlled by the clamping motor 706 can automatically adjust the opening and closing size of the jig claw piece according to the opening and closing state of the jaws of different tire blanks, thereby effectively protecting the initial state of the tire blank jaws and effectively avoiding the situation that the tire blank jaws are expanded or the tire blanks are damaged due to different opening and closing states of the clamping claws 703 of different jigs of the tire blank jaws.

The whole grabbing jig can ascend and descend along the frame mechanism, and a jig lifting mechanism is further designed for solving the ascending and descending problem of the grabbing jig. In some embodiments of the present invention, the lifting mechanism is implemented by the following structure. The jig mounting plate 701 is provided with a lifting belt 710, the lifting belt 710 is provided with a driving mechanism, the driving mechanism is used for controlling the lifting of the lifting belt 710, the lifting belt 710 is lifted to drive the jig mounting plate 701 to lift, and then the lifting of the grabbing jig is driven. The lifting belts 710 are four in number, include a first lifting belt, a second lifting belt, a third lifting belt and a fourth lifting belt, and are arranged in a rectangular shape and mounted on the jig mounting plate 701.

Snatch tool actuating mechanism and install on frame structure's frame plate 401, include: jig plate motor 709, reel shaft 711, and reel. The grabbing jig motor is specifically arranged on a transverse protection plate of the frame plate; the winding wheel shaft is connected with the power output end of the grabbing jig motor, and two ends of the wheel shaft are respectively arranged on the transverse protection plates on two sides through bearings; the number of the belt winding wheels is 4, and the belt winding wheels comprise a first belt winding wheel 7121, a second belt winding wheel 7122, a third belt winding wheel and a fourth belt winding wheel (not visible in the figure), the first belt winding wheel 7021 and the second belt winding wheel 7122 are installed on the first end side (the end close to the first side transverse protection plate 403) of the belt winding wheel shaft 711, and the third belt winding wheel 7023 and the fourth belt winding wheel 7024 are installed on the second end side (the end close to the second side transverse protection plate 403) of the belt winding wheel shaft 711. Each of the pulleys is used for passing one lifting belt 710, two lifting belts 710 close to the first side transverse protection plate 403 are wound around one pulley on the side, and two lifting belts 710 close to the second side transverse protection plate 403 are wound around one pulley on the side; wherein, four lifting belts 710 respectively wind around the corresponding belt wheel from the same side of the belt wheel to ensure synchronous lifting. Specifically, the first lifting belt and the second lifting belt are disposed near the first pulley and the second pulley, and respectively wind around the first pulley and the second pulley along the same side, and the third lifting belt and the fourth lifting belt are disposed near the third pulley and the fourth pulley, and respectively wind around the third pulley 7023 and the fourth pulley 7024 in the same direction as the winding direction of the first lifting belt.

Furthermore, in order to improve the effect of anti-falling protection, the driving mechanism of the grabbing jig further comprises a brake and a grabbing jig speed reducer, wherein the brake is installed between the jig board motor and the grabbing jig speed reducer, the brake is opened when the lifting motion driving is operated, the lifting motion stops when the lifting motion stops, and when the lifting drive breaks down, the anti-falling safety protection effect except for the internal contracting brake of the jig board motor can be provided.

Furthermore, the lifting belt is easy to overturn and bend during lifting, which affects the normal lifting of the grabbing jig. To solve this problem, in some embodiments of the present invention, a puller mechanism 11 is also designed. The puller mechanism 11 is mounted above the frame plate 401 and comprises two sets, each set corresponding to two pulleys parallel to the direction of the transverse fender. The puller mechanism 11 includes a puller fixing base 1101, a puller supporting plate, and the like.

A puller fixing seat: including first side fixing base 8011 and second side fixing base 8012 that the interval set up for fix puller mechanism to frame 401, first side fixing base 8011 and the parallel direction of transversal guard plate 403 of the extending direction of second side fixing base 8012.

A puller supporting plate: the connecting device is arranged between the first side fixing seat 8011 and the second side fixing seat 8012, is connected with the first side fixing seat 8011 and the second side fixing seat 8012, and comprises a first supporting plate 8021 and a second supporting plate 8022 which are arranged in a gap; an inertia wheel 804 is arranged between the first support plate 8021 and the second support plate 8022, and a guide block 803 is arranged on the side of the inertia wheel; the idler wheel can rotate relative to the first support plate 8021 and the second support plate 8022, the guide block 803 is concave and comprises a rectangular through groove, after the guide block 803 is installed, the rectangular through groove is spaced from the idler wheel 804, and the lifting belt 710 can pass through the rectangular through groove. The rectangular through groove structure of the guide block 803 can guide the lifting belt, and the bending of the lifting belt is avoided.

Further, in some embodiments, the puller mechanism 8 further comprises a detection shaft 805 mounted between the first support plate 8021 and the second support plate 8022. The detection shaft 805 is attached to the exit side of the lifting belt via the guide block 803, and the lifting belt 710 further contacts the detection shaft 805 and is led out via the detection shaft 805. To solve the problem of mounting the detection shaft 805, a support 806 and an arm assembly 807 are further designed, and the detection shaft 805 is hinged on the support 806. The arm assembly 807 is connected with the gap between the first support plate 8021 and the second support plate 8022, the support member is in a concave shape and comprises a rectangular through groove, the rectangular through groove is arranged between the first support plate 8021 and the second support plate 8022 and is arranged in a gap with the arm assembly, and the detection shaft 805 is arranged at the second end of the support member 806 and is positioned at one end relatively far away from the guide block. The lift belt passes out of the guide block, passes through a gap between the first end of the support member 806 and the arm assembly 807, and is led out at several detection axes 805. The structure can further solve the problem of reverse rotation of the lifting belt and ensure that the lifting process of the jig tends to be stable.

Because the lifting and descending speeds of the jig during lifting are high, the traditional wiring mode can not meet the use requirements of cables and signal wires. In order to solve the problem of conveniently walking the line the utility model discloses some embodiments can set up in the outside of elevator belt and walk the line structure. In this embodiment, a bobbin 12 is provided outside the two lifting belts 710, and a spool 13 is provided around the bobbin 12, and is spirally wound in the direction of the height of the bobbin 12. Solenoid 13 is customized for tool end servo motor cable and signal line, and the free extension of solenoid 13 can satisfy the reciprocating motion that the cable was done along with the lift of tool mounting panel 701 to can protect the normal communication of cable and signal line. The number of the routing structures can be determined according to specific requirements, and is not limited to two groups.

During the process on the jig, the bobbin 12 may interfere with the frame plate. To solve this problem, a first through hole 4011 is formed in the frame plate 401 at a position corresponding to the bobbin 12, and when the grasping jig is raised to the frame plate 401, the bobbin passes through the first through hole 4011. The structure can assist the motion positioning of the grabbing jig, and avoids the shaking caused by high-speed motion.

Further, in order to solve the positioning guide problem of the ascending motion of snatching rocking of tool and snatching the tool that the high-speed motion brought the utility model discloses some embodiments are provided with locating piece 4 on tool mounting panel 701, and quantity demand is seen, has further opened second through-hole 4012 on frame plate 401, and quantity corresponds with the quantity of locating piece, and the position corresponds with the position of locating piece, makes tool mounting panel 701 rise to frame plate position time, and locating piece 14 can pass second through-hole 4012. Furthermore, the positioning block 4 may be made of rubber, and is tapered, and one end of the tapered vertex angle faces the second through hole 4012, so as to facilitate insertion. The locating piece can assist and snatch the tool board because of the inertia force that produces at high-speed lift in-process, makes and snatch the tool and stop according to established position, and the toper location can overcome even the tool board skew establishes the parking position and also can force tool mounting panel 701 playback through the toper, arrives and establishes the parking position.

Further, in order to further stabilize the lifting movement of the gripping jig, the jig may be mounted on the jig mounting plate 701. The jig counterweight 713 is configured for a jig end servo motor, and can effectively overcome the shaking caused by the gravity center shift in order to prevent the lifting jig plate from shaking caused by the gravity center shift of the jig mounting plate 701, so that the effect of gravity center balance is achieved.

Further, in order to detect and assist in controlling the lifting distance of the gripping jig, a photoreaction plate 714 is mounted on the upper end surface of the jig mounting plate 701, and a distance sensing detection device is mounted on the frame plate 401. The photosensitive reaction plate 714 and the distance sensing detection device are matched for use, so that the movement displacement of any point of the Z axis can be detected in real time in the lifting process of the Z axis, and the position displacement and the use working condition data of the grabbing jig can be monitored and recorded conveniently.

Further, to protect the gripping jig, in some embodiments, the frame mechanism further comprises a lifting basket mechanism.

Hereinafter, the structure of the lifting basket is described in detail.

The lifting basket 402 is a cubic structure, which may be a cuboid or cube, with the top connected to the frame plate; the grabbing jig can be accommodated in a cuboid or cubic space formed by the lifting basket; in order not to hinder the lifting of the grabbing jig, one side of the bottom of the lifting basket is in an opening shape to form a cabin door, and the grabbing jig can pass through the bottom 402 of the lifting basket without obstacles in the lifting process.

In some embodiments of the present invention, a protective structure for a lifting basket is further provided. Specifically, the lifting basket 402 is a frame structure including four longitudinal beams and two transverse beams to be a first longitudinal beam, a second longitudinal beam, a third longitudinal beam, a fourth longitudinal beam, a first transverse beam and a second transverse beam. Two transverse beams are arranged at one end of the lifting basket 402 close to the frame plate 401, a first transverse beam and a second transverse beam are oppositely arranged, the first transverse beam is connected with the first longitudinal beam and the second longitudinal beam, and the second transverse beam is connected with the third longitudinal beam and the fourth longitudinal beam. Every transverse beam place side all is provided with the lifting wheel group, encircles the lifting wheel group and is provided with drive belt 16.

Each set of lifting wheels comprises a first lifting wheel 1501, a second lifting wheel 1502, a third lifting wheel and a fourth lifting wheel (wherein the third lifting wheel and the fourth lifting wheel are not visible in the figure), and the four lifting wheels are arranged on the lifting basket frame structure in a rectangular distribution, and in this embodiment, one lifting wheel is arranged at the position of each of the two ends of each longitudinal beam. The first lifting wheels on both sides are connected by a transmission shaft 1504, and the first lifting wheel on one side is connected with a basket lifting motor 1505 as a driving wheel. The first 1501, second 1502, third and fourth lifting wheels surrounding each side are provided with a belt 16, forming a closed surrounding belt 16 structure. A stop structure is arranged between the transmission belts on the two sides, can move along with the transmission belts, and can close the cabin door when moving to the cabin door.

In some embodiments of the present invention, the stop structure is a pipe spaced between the two-sided belt 16, and the number of pipes 17 is configured to close the hatch opening at the bottom of the lifting basket 402 when the section of belt with the pipes 17 moves to the bottom. The spacing between the tubes 17 is configured to stop the object being grasped by the grasping jig when the hatch is closed. For example, if the product to be gripped is of a smaller volume, the tubes 17 need to be arranged more densely, and if the product to be gripped is of a larger volume, the tubes 17 can be arranged at a larger pitch. The structure can seal the lifting basket when the grabbing jig is positioned inside the lifting basket, and avoids the grabbing of the product which falls accidentally.

Further, in order to adjust the tension of the belt, a tension pulley 1503 may be provided between the first lifting pulley and the second lifting pulley.

Further, in some embodiments of the present invention, a hatch switch detection switch 18 is disposed on the protection plate in the direction of the rotation of the transmission belt 16, and a detection signal of the hatch switch detection switch 18 is fed back to the control system, and the opening and closing of the hatch at the bottom of the lifting basket 402 is determined by combining the movement position of the transmission belt pipe 17.

Further, to enhance the shielding, a shielding plate 19 is disposed between any two adjacent longitudinal beams, at an end near the bottom of the lifting basket 402. A protective plate 19 is arranged on the outside of the lifting wheel in order to influence the movement of the drive belt. An on-position detection switch 20 is arranged on any one of the protection plates 19 and used for detecting whether the grabbing jig grabs the product to ascend to the inside of the lifting basket 402 at a specified station. The detection signal of the detection switch 20 is fed back to the control system. And if the product slides downwards or falls, the control system controls the trolley to stop walking.

Further, a belt breakage detecting switch 21 is provided at the first lifting wheel for detecting belt breakage. And a detection signal of the belt breakage detection switch is fed back to the control system, and when the belt breakage exists, the trolley is controlled to stop walking.

The specific work flow is as follows: after the trolley travels to the designated station, the driving belt is controlled to rotate until the pipe fittings move to the side edge of the lifting basket, and the cabin door at the bottom of the lifting basket is opened. And controlling the grabbing jig to fall. After grabbing the product, control is grabbed the tool and is risen, and control drive belt rotates to the pipe fitting and seals the hatch door of promotion basket bottom. And controlling the trolley to walk to the next station.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A grabbing jig is characterized by comprising a jig mounting plate, a clamping mechanism and a clamping driving mechanism, wherein the clamping mechanism is mounted on the jig mounting plate;

the fixture includes:

an upper fixing plate: is arranged on the jig mounting plate;

a clamping jaw: the number of the fixing plates is a plurality of, the fixing plates are arranged along the circumference of the upper fixing plate, are connected with the upper fixing plate through shafts and can rotate relative to the upper fixing plate;

a driving plate: the second end of the pull rod is connected with the jig mounting plate at intervals;

the switching pole: the number of the clamping claws is the same as that of the clamping claws, the first end of the clamping claw is connected with the drive plate in a shaft mode, and the second end of the clamping claw is connected with the clamping claw in a shaft mode;

the clamping driving mechanism is connected with the driving plate, so that the driving plate moves towards the direction close to or far away from the jig mounting plate.

2. The grasping jig according to claim 1, wherein the gripping drive mechanism includes:

a clamping motor: the power output end of the upper fixing plate is arranged along the direction parallel to the jig mounting plate;

a cam: the first end of the clamping motor is connected with the power output end of the clamping motor;

the clamping mechanism further comprises a pull rod, and a first end of the pull rod is in shaft connection with a second end of the cam.

3. The grasping jig according to claim 2, wherein the holding motor is mounted on the upper fixing plate via the base, through holes are provided on the upper fixing plate and the jig mounting plate, and the pull rod passes through the through holes to connect with the cam.

4. The grasping jig according to claim 1, wherein the first end of the gripping claw is hinged to the upper fixing plate, and the second end of the gripping claw is concavely curved toward the center of the arrangement circumference of the gripping claws.

5. The grasping jig according to claim 1, wherein the upper fixing plate includes a body and projections circumferentially arranged on an outer periphery of the body, and the first end of each of the holding claws is coupled to the projections of the upper fixing plate.

6. The grasping jig according to claim 1, wherein the jig mounting plate is provided with holes corresponding to the number of the gripper claws, the gripper claws pass through the holes, and the size of the holes is configured to be larger than the opening and closing movement distance of the gripper claws at the positions of the holes.

7. The grasping jig according to claim 1, wherein the grasping jig further comprises a frame plate, and the jig mounting plate is further connected to a lifting drive mechanism, mounted on the frame plate, for driving the brake mounting plate to lift.

8. The grasping jig according to claim 7, wherein the elevating drive mechanism includes:

lifting the belt: the lifting device comprises a first lifting belt, a second lifting belt, a third lifting belt and a fourth lifting belt which are arranged on a jig mounting plate in a rectangular shape;

winding a belt wheel shaft: is mounted on the frame plate;

winding the belt wheel: the first lifting belt and the second lifting belt are arranged on the sides close to the first belt winding wheel and the second belt winding wheel and respectively wind the first belt winding wheel and the second belt winding wheel along the same side, and the third lifting belt and the fourth lifting belt are arranged on the sides close to the third belt winding wheel and the fourth belt winding wheel and respectively wind the third belt winding wheel and the fourth belt winding wheel along the same direction of the winding direction of the first lifting belt;

and the jig plate motor is arranged on the frame plate, and the power output end of the jig plate motor is connected with the belt winding wheel shaft.

9. The grasping jig according to claim 8, wherein a jig weight is mounted on the jig mounting plate.

10. The grasping jig according to claim 2, wherein the holding motor is a counter-rotating motor.

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