阅读说明：本技术 一种用于塑料制品的夹持转运装置 (A centre gripping transfer device for plastic products ) 是由 魏俊 于 2021-10-18 设计创作，主要内容包括：本发明涉及一种用于塑料制品的夹持转运装置,包括车体、夹持机构和升降机构,升降机构设置在车体上,夹持机构设置在升降机构上,夹持机构包括固定杆、夹持组件、推动组件和锁定组件,升降机构包括升降组件和限位组件,该用于塑料制品的夹持转运装置,通过夹持机构实现工件的夹持,通过升降机构实现夹持机构的升降,通过移动车体实现工件的转运,与现有的夹持机构相比,该机构通过设置多重夹持,对工件实现更好的夹紧效果,且该机构采用柔性夹持,避免了刚性夹持划花甚至损坏工件,对工件实现保护,与现有的升降机构相比,该机构通过限位单元对移动杆进行辅助支撑,从而避免丝杆承重过大造成螺纹受损,对丝杆实现保护,提高使用寿命。(The invention relates to a clamping and transferring device for plastic products, which comprises a vehicle body, a clamping mechanism and a lifting mechanism, wherein the lifting mechanism is arranged on the vehicle body, the clamping mechanism is arranged on the lifting mechanism, the clamping mechanism comprises a fixed rod, a clamping component, a pushing component and a locking component, the lifting mechanism comprises a lifting component and a limiting component, the clamping and transferring device for the plastic products realizes the clamping of workpieces through the clamping mechanism, the lifting of the clamping mechanism is realized through the lifting mechanism, the transferring of the workpieces is realized through moving the vehicle body, compared with the existing clamping mechanism, the clamping mechanism realizes better clamping effect on the workpieces through arranging multiple clamping, adopts flexible clamping, avoids rigid clamping and scratching even damages the workpieces, realizes the protection of the workpieces, and compared with the existing lifting mechanism, the clamping mechanism carries out auxiliary support on a moving rod through a limiting unit, thereby avoid the lead screw bearing too big to cause the screw thread impaired, realize the protection to the lead screw, improve life.)

1. The clamping and transferring device for the plastic products is characterized by comprising a vehicle body (1), a clamping mechanism and a lifting mechanism, wherein the lifting mechanism is arranged on the vehicle body (1), and the clamping mechanism is arranged on the lifting mechanism;

the clamping mechanism comprises a fixed rod (2), a clamping component, a pushing component and a locking component, the fixed rod (2) is arranged on the lifting mechanism, the clamping component comprises two clamping units, the two clamping units are respectively arranged at two ends of the fixed rod (2), the clamping units comprise a rotating rod (3), a pressure rod (4), a pressure plate (5), a pressing block (6) and a first spring (7), the middle part of the rotating rod (3) is hinged with the fixed rod (2), the pressure rod (4) is arranged at one end of the rotating rod (3), the pressure rod (4) penetrates through the rotating rod (3), the pressure rod (4) is in sliding connection with the rotating rod (3), the pressing plate (5) is arranged at one end of the pressure rod (4), the pressing plate (5) is hinged with the pressure rod (4), the two pressing plates (5) of the two clamping units are just opposite to each other, the pressing block (6) is arranged at one end, far away from the pressing plate (5), of the pressing rod (4), the push rod mechanism is characterized in that a first spring (7) is sleeved on a press rod (4), the first spring (7) is located between a rotating rod (3) and a pressing block (6), one end of the first spring (7) is connected with the rotating rod (3), the other end of the first spring (7) is connected with the pressing block (6), the pushing assembly comprises a pushing unit and a positioning unit, the pushing unit comprises a push plate (8), a push rod (9), a push block (10) and a second spring (11), the positioning unit comprises a positioning rod (12) and a third spring (13), a through hole is formed in the middle of a fixing rod (2), the push rod (9) penetrates through the through hole, the push rod (9) is connected with the through hole in a sliding mode, the push plate (8) is arranged at one end of the push rod (9), the push plate (8) is located between the two pressing plates (5), the push block (10) is arranged at one end, far away from the push plate (8), of the push rod (9), the second spring (11) is sleeved on the push rod (9), the second spring (11) is located between the push plate (8) and the fixed rod (2), one end of the second spring (11) is connected with the push plate (8), the other end of the second spring (11) is connected with the fixed rod (2), the push block (10) is arranged in a hollow mode, two positioning rods (12) are arranged, the two positioning rods (12) are respectively arranged at two ends of the push block (10), one end of each positioning rod (12) is located in the push block (10), the other end of each positioning rod (12) extends out of the push block (10), the positioning rods (12) are connected with the push block (10) in a sliding mode, one end, located outside the push block (10), of each positioning rod (12) abuts against the rotating rod (3), the third spring (13) is arranged in the push block (10), and two ends of the third spring (13) are respectively connected with the two positioning rods (12), the locking assembly is arranged in the through hole and comprises four locking units, an included angle formed by two adjacent locking units is 90 degrees, each locking unit comprises a shell (14), a locking ball (15) and a fourth spring (16), the shell (14) is arranged in the through hole, the top of the shell (14) is open, the locking ball (15) is arranged at the opening, two locking grooves are formed in the push rod (9), the two locking grooves are respectively formed in two ends of the push rod (9), the locking ball (15) is positioned in one of the locking grooves, the locking ball (15) abuts against the locking groove, the fourth spring (16) is arranged in the shell (14), one end of the fourth spring (16) is connected with the shell (14), and the other end of the fourth spring (16) is connected with the locking ball (15);

elevating system includes lifting unit and spacing subassembly, lifting unit includes motor (17), lead screw (18), carriage release lever (19) and branch (20), vertical setting up of motor (17) is on automobile body (1), install on motor (17) lead screw (18), carriage release lever (19) cover is established on lead screw (18), carriage release lever (19) and locking lever threaded connection, branch (20) set up on automobile body (1), be equipped with the spout on branch (20), carriage release lever (19) pass the spout, carriage release lever (19) and spout sliding connection, dead lever (2) are connected with carriage release lever (19).

2. The clamping and transferring device for plastic products according to claim 1, wherein a strip-shaped groove is formed in the sliding groove, the limiting component is arranged in the strip-shaped groove, the limiting component comprises a plurality of limiting units, each limiting unit is arranged along the axis direction of the strip-shaped groove, the limiting units comprise a limiting rod (21), a fixing block (22), a walking rod (23), a sliding rod (24) and a fifth spring (25), one end of the limiting rod (21) is located in the strip-shaped groove, the other end of the limiting rod (21) extends into the sliding groove, the middle part of the limiting rod (21) is hinged to the strip-shaped groove, the fixing block (22) is arranged in the strip-shaped groove, the sliding rod (24) is arranged on the fixing block (22), the walking rod (23) is sleeved on the sliding rod (24), and the walking rod (23) is connected with the sliding rod (24) in a sliding manner, the one end that walking pole (23) and gag lever post (21) are located the spout leans on, fifth spring (25) cover is established on slide bar (24), the one end and the fixed block (22) of fifth spring (25) are connected, the other end and the walking pole (23) of fifth spring (25) are connected, and gag lever post (21) and carriage release lever (19) that are close to carriage release lever (19) lean on with carriage release lever (19) and lean on.

3. A holding and transferring device for plastic products as claimed in claim 2, wherein there are two strip-shaped grooves, two strip-shaped grooves are respectively disposed on both sides of the sliding groove, and there are two limit assemblies, two limit assemblies are respectively disposed in the two strip-shaped grooves.

4. The holding and transferring device for plastic products according to claim 1, wherein an end of the rotating rod (3) away from the pushing rod (9) is provided with an elastic band (26), and the elastic band (26) is sleeved on the two rotating rods (3).

5. A holding and transfer device for plastic products according to claim 4, characterized in that the turning bar (3) is provided with a groove, in which the elastic band (26) is located.

6. The clamping and transferring device for plastic products as claimed in claim 3, characterized in that the end of the walking rod (23) abutting against the limiting rod (21) is provided with a roller (27).

7. The holding and transferring device for plastic products according to claim 1, characterized in that the end of the positioning rod (12) against the rotating rod (3) is provided with a pulley (28).

Technical Field

The invention relates to a clamping and transferring device for plastic products.

Background

The plastic products are manufactured by using plastics as raw materials, and when the plastic products are processed in various workshops, a transfer device is usually needed, and the existing transfer device is a trolley, a flat car and the like.

Present transfer device does not generally set up better fixture, the work piece drops easily on transfer device, cause the work piece to damage, and present transfer device that has a clamping function, the comparatively simple of its fixture general setting, the centre gripping effect is not good, and generally adopt the rigidity centre gripping, draw colored work piece easily, cause the work piece to damage even, the lift of work piece is generally realized through the lead screw to the transfer device that has now simultaneously, when the lead screw bearing is too big, just cause the screw thread on the lead screw impaired easily, influence the life of lead screw.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, a clamping and transferring device for plastic products is provided.

The technical scheme adopted by the invention for solving the technical problems is as follows: a clamping and transferring device for plastic products comprises a vehicle body, a clamping mechanism and a lifting mechanism, wherein the lifting mechanism is arranged on the vehicle body;

the clamping mechanism comprises a fixed rod, a clamping assembly, a pushing assembly and a locking assembly, the fixed rod is arranged on the lifting mechanism, the clamping assembly comprises two clamping units, the two clamping units are respectively arranged at two ends of the fixed rod, each clamping unit comprises a rotating rod, a pressing plate, a pressing block and a first spring, the middle part of each rotating rod is hinged with the fixed rod, the pressing rod is arranged at one end of each rotating rod, the pressing rod penetrates through the rotating rod and is in sliding connection with the rotating rod, the pressing plate is arranged at one end of the pressing rod, the pressing plate is hinged with the pressing rod, the two pressing plates of the two clamping units are arranged right opposite to each other, the pressing block is arranged at one end of the pressing rod far away from the pressing plate, the first spring is sleeved on the pressing rod, the first spring is positioned between the rotating rod and the pressing block, one end of the first spring is connected with the rotating rod, and the other end of the first spring is connected with the pressing block, the pushing assembly comprises a pushing unit and a positioning unit, the pushing unit comprises a pushing plate, a pushing rod, a pushing block and a second spring, the positioning unit comprises a positioning rod and a third spring, a through hole is formed in the middle of the fixing rod, the pushing rod penetrates through the through hole and is in sliding connection with the through hole, the pushing plate is arranged at one end of the pushing rod, the pushing plate is arranged between two pressing plates, the pushing block is arranged at one end, away from the pushing plate, of the pushing rod, the second spring is sleeved on the pushing rod, the second spring is arranged between the pushing plate and the fixing rod, one end of the second spring is connected with the pushing plate, the other end of the second spring is connected with the fixing rod, the pushing block is hollow, the two positioning rods are respectively arranged at two ends of the pushing block, one end of each positioning rod is arranged in the pushing block, and the other end of each positioning rod extends out of the pushing block, the positioning rod is connected with the pushing block in a sliding way, one end of the positioning rod, which is positioned outside the pushing block, is abutted against the rotating rod, the third spring is arranged in the push block, two ends of the third spring are respectively connected with the two positioning rods, the locking assembly is arranged in the through hole and comprises four locking units, the included angle formed by two adjacent locking units is 90 degrees, the locking unit comprises a shell, a lock ball and a fourth spring, the shell is arranged in the through hole, the top of the shell is open, the lock ball is arranged at the opening, the push rod is provided with two lock grooves which are respectively arranged at the two ends of the push rod, the lock ball is positioned in one of the lock grooves and is abutted against the lock groove, the fourth spring is arranged in the shell, one end of the fourth spring is connected with the shell, and the other end of the fourth spring is connected with the lock ball;

elevating system includes elevating system and spacing subassembly, elevating system includes motor, lead screw, carriage release lever and branch, the vertical setting up of motor is on the automobile body, the lead screw is installed on the motor, the carriage release lever cover is established on the lead screw, carriage release lever and locking lever threaded connection, branch sets up on the automobile body, be equipped with the spout on the branch, the carriage release lever passes the spout, carriage release lever and spout sliding connection, the dead lever is connected with the carriage release lever.

In order to support the moving rod, a strip-shaped groove is arranged in the sliding groove, a limiting assembly is arranged in the strip-shaped groove, the limiting assembly comprises a plurality of limiting units, each limiting unit is uniformly arranged along the axis direction of the strip-shaped groove, each limiting unit comprises a limiting rod, a fixing block, a walking rod, a sliding rod and a fifth spring, one end of each limiting rod is positioned in the strip-shaped groove, the other end of each limiting rod extends into the sliding groove, the middle part of each limiting rod is hinged to the strip-shaped groove, the fixing block is arranged in the strip-shaped groove, the sliding rod is arranged on the fixing block, the walking rod is sleeved on the sliding rod and is in sliding connection with the sliding rod, the walking rod is abutted against one end of each limiting rod in the sliding groove, the fifth spring is sleeved on the sliding rod, one end of the fifth spring is connected with the fixing block, and the other end of the fifth spring is connected with the walking rod, the limiting rod close to the moving rod is abutted against the moving rod.

In order to realize better supporting effect, the bar groove has two, and two bar grooves set up the both sides at the spout respectively, spacing subassembly has two, and two spacing subassemblies are located two bar inslots respectively.

In order to take down the workpiece conveniently, an elastic belt is arranged at one end of each rotating rod, which is far away from the push rod, and the elastic belts are sleeved on the two rotating rods.

In order to position the elastic belt, a groove is formed in the rotating rod, and the elastic belt is located in the groove.

In order to reduce friction, one end of the walking rod, which is abutted against the limiting rod, is provided with a roller.

In order to reduce friction, a pulley is arranged at one end of the positioning rod, which is abutted against the rotating rod.

The clamping and transferring device for the plastic products has the advantages that the clamping of the workpiece is realized through the clamping mechanism, the lifting of the clamping mechanism is realized through the lifting mechanism, the transferring of the workpiece is realized through the moving vehicle body, compared with the existing clamping mechanism, the clamping mechanism realizes a better clamping effect on the workpiece through setting multiple clamping, the mechanism adopts flexible clamping, rigid clamping scratching and even workpiece damage are avoided, the workpiece is protected, compared with the existing lifting mechanism, the mechanism carries out auxiliary supporting on the moving rod through the limiting unit, the thread damage caused by overlarge bearing of the screw rod is avoided, the screw rod is protected, and the service life is prolonged.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural view of a holding and transferring device for plastic products of the present invention;

FIG. 2 is a schematic structural view of a clamping mechanism of the clamping and transferring device for plastic products of the present invention;

FIG. 3 is a schematic view of a connection structure of a strut and a limiting component of the clamping and transferring device for plastic products;

FIG. 4 is a schematic structural diagram of a limiting unit of the holding and transferring device for plastic products of the present invention;

in the figure: 1. the automobile body, 2, a fixed rod, 3, a rotating rod, 4, a pressure rod, 5, a pressure plate, 6, a pressure block, 7, a first spring, 8, a push plate, 9, a push rod, 10, a push block, 11, a second spring, 12, a positioning rod, 13, a third spring, 14, a shell, 15, a locking ball, 16, a fourth spring, 17, a motor, 18, a screw rod, 19, a moving rod, 20, a supporting rod, 21, a limiting rod, 22, a fixed block, 23, a walking rod, 24, a sliding rod, 25, a fifth spring, 26, an elastic belt, 27, a roller and 28, wherein the fixed rod, the push block, the second spring, the positioning rod and the third spring are arranged in sequence.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

As shown in fig. 1, a clamping and transferring device for plastic products comprises a vehicle body 1, a clamping mechanism and a lifting mechanism, wherein the lifting mechanism is arranged on the vehicle body 1, and the clamping mechanism is arranged on the lifting mechanism;

when the device is used, the workpiece is clamped through the clamping mechanism, and the lifting of the clamping mechanism is realized through the lifting mechanism, so that the workpiece is lifted, and the workpiece is moved to a preset point through the vehicle body 1 to realize the transfer of the workpiece.

As shown in fig. 2, the clamping mechanism comprises a fixed rod 2, a clamping assembly, a pushing assembly and a locking assembly, the fixed rod 2 is arranged on the lifting mechanism, the clamping assembly comprises two clamping units, the two clamping units are respectively arranged at two ends of the fixed rod 2, the clamping units comprise a rotating rod 3, a pressure rod 4, a pressure plate 5, a pressure block 6 and a first spring 7, the middle part of the rotating rod 3 is hinged with the fixed rod 2, the pressure rod 4 is arranged at one end of the rotating rod 3, the pressure rod 4 penetrates through the rotating rod 3, the pressure rod 4 is in sliding connection with the rotating rod 3, the pressure plate 5 is arranged at one end of the pressure rod 4, the pressure plate 5 is hinged with the pressure rod 4, the two pressure plates 5 of the two clamping units are arranged right opposite, the pressure block 6 is arranged at one end of the pressure rod 4 far away from the pressure plate 5, the first spring 7 is sleeved on the pressure rod 4, the first spring 7 is arranged between the rotating rod 3 and the pressure block 6, one end of the first spring 7 is connected with the rotating rod 3, the other end of the first spring 7 is connected with the pressing block 6, the pushing assembly comprises a pushing unit and a positioning unit, the pushing unit comprises a pushing plate 8, a pushing rod 9, a pushing block 10 and a second spring 11, the positioning unit comprises a positioning rod 12 and a third spring 13, a through hole is formed in the middle of the fixing rod 2, the pushing rod 9 penetrates through the through hole, the pushing rod 9 is connected with the through hole in a sliding mode, the pushing plate 8 is arranged at one end of the pushing rod 9, the pushing plate 8 is located between the two pressing plates 5, the pushing block 10 is arranged at one end, far away from the pushing plate 8, of the pushing rod 9, the second spring 11 is sleeved on the pushing rod 9, the second spring 11 is located between the pushing plate 8 and the fixing rod 2, one end of the second spring 11 is connected with the pushing plate 8, the other end of the second spring 11 is connected with the fixing rod 2, and the pushing block 10 is hollow, the number of the positioning rods 12 is two, the two positioning rods 12 are respectively arranged at two ends of the push block 10, one end of each positioning rod 12 is located in the push block 10, the other end of each positioning rod 12 extends out of the push block 10, the positioning rods 12 are connected with the push block 10 in a sliding mode, one end, located outside the push block 10, of each positioning rod 12 is abutted to the rotating rod 3, the third spring 13 is arranged in the push block 10, two ends of the third spring 13 are respectively connected with the two positioning rods 12, the locking assembly is arranged in the through hole and comprises four locking units, an included angle formed by the two adjacent locking units is 90 degrees, each locking unit comprises a shell 14, a locking ball 15 and a fourth spring 16, the shell 14 is arranged in the through hole, the top of the shell 14 is opened, the locking ball 15 is arranged at the opening, two locking grooves are formed in the push rod 9 and are respectively arranged at two ends of the push rod 9, the lock ball 15 is positioned in one of the lock grooves, the lock ball 15 abuts against the lock groove, the fourth spring 16 is arranged in the shell 14, one end of the fourth spring 16 is connected with the shell 14, and the other end of the fourth spring 16 is connected with the lock ball 15;

the vehicle body 1 is moved, the device is moved to the position of a workpiece, the push plate 8 is positioned right above the workpiece, then the lifting mechanism is operated, the lifting mechanism drives the clamping mechanism to move downwards, so that the push plate 8 moves downwards to be abutted against the top of the workpiece, the two press plates 5 move to two sides of the workpiece, along with the continuous operation of the lifting mechanism, the push plate 8 is abutted against the top of the workpiece and cannot move, the fixed rod 2 continues to move downwards, the rotating rod 3 moves downwards, the rotating rod 3 rotates outwards under the blockage of the positioning rod 12, under the action of the lever principle, the other end of the rotating rod 3 rotates reversely, so that the rotating rod 3 drives the first spring 7 to move, the first spring 7 pulls the press block 6 to move, the press block 6 drives the press rod 4 to move, the press rod 4 drives the press plates 5 to move, so that the press plates 5 are abutted against the side faces of the workpiece, so that two sides of the workpiece are clamped, along with the continuous movement of the fixed rod 2, one end of the rotating rod 3, which is close to the positioning rod 12, continues to rotate outwards, so that one end of the rotating rod 3, which is close to the pressing plate 5, continues to move towards the workpiece, the pressing plate 5 and the workpiece are abutted against each other and cannot move, so that the distance between the rotating rod 3 and the pressing block 6 is increased, the first spring 7 is stretched, the restoring force of the first spring 7 generates pulling force on the pressing block 6, the pressing block 6 generates pushing force on the pressing rod 4, the pressing rod 4 generates pushing force on the pressing plate 5, so that the pressing plate 5 can better clamp the workpiece, a better clamping effect is realized, when the first spring 7 is stretched to the limit, the rotating rod 3 cannot rotate, along with the continuous movement of the fixed rod 2, the rotating rod 3 presses the positioning rod 12 downwards, the positioning rod 12 compresses the third spring 13, the restoring force of the third spring 13 generates outward pushing force on the positioning rod 12, and the positioning rod 12 generates outward pushing force on the rotating rod 3, thereby continuously applying pressure towards the workpiece direction to one end of the rotating rod 3 close to the pressing plate 5, thereby realizing better clamping effect, wherein the fixed rod 2 moves along the axial direction of the push rod 9, thereby enabling the locking unit to move downwards, when the locking ball 15 moves to the locking groove close to the push plate 8, the locking ball 15 is not blocked, under the action of the restoring force pair of the fourth spring 16, the locking ball can pop out and be clamped into the locking groove, thereby locking the push rod 9 and the fixed rod 2, at the moment, the restoring force of the fourth spring 16 is larger than the sum of the restoring forces of the first spring 7, the second spring 11 and the third spring 13, thereby enabling the fixed rod 2 and the push rod 9 to keep a locking state, thereby keeping the clamping state of the workpiece, at the moment, the restoring force of the springs is used as the clamping force, flexible clamping is adopted, rigid clamping is avoided, the workpiece is protected, and then the lifting mechanism is reversely operated, make fixture reverse movement, thereby make the work piece break away from ground, then remove automobile body 1, make the device remove to preset the point, operation elevating system, make the work piece place subaerially, then continue to operate elevating system, thereby make dead lever 2 continue to move, thereby make lock ball 15 shift out the locked groove, make second spring 11 further compress simultaneously, the restoring force of second spring 11 increases the thrust of push pedal 8, thereby make push pedal 8 release the work piece, thereby take off the work piece, realize the transportation of work piece.

As shown in fig. 1, elevating system includes lifting unit and spacing subassembly, lifting unit includes motor 17, lead screw 18, carriage release lever 19 and branch 20, motor 17 is vertical to be set up on automobile body 1, lead screw 18 is installed on motor 17, 19 covers of carriage release lever are established on lead screw 18, carriage release lever 19 and locking lever threaded connection, branch 20 sets up on automobile body 1, be equipped with the spout on branch 20, carriage release lever 19 passes the spout, carriage release lever 19 and spout sliding connection, dead lever 2 is connected with carriage release lever 19.

The motor 17 is operated, the motor 17 drives the screw rod 18 to rotate, the screw rod 18 drives the movable rod 19 to move, the movable rod 19 drives the fixed rod 2 to move, so that the clamping mechanism moves, the movable rod 19 is located in the sliding groove, the movable rod 19 can only move along the axis direction of the sliding groove, and therefore the movement of the movable rod 19 is limited.

As shown in fig. 3-4, in order to support the moving rod 19, a strip groove is arranged in the sliding groove, the limiting component is arranged in the strip groove, the limiting component comprises a plurality of limiting units, each limiting unit is arranged along the axis direction of the strip groove, the limiting units comprise a limiting rod 21, a fixed block 22, a walking rod 23, a sliding rod 24 and a fifth spring 25, one end of the limiting rod 21 is located in the strip groove, the other end of the limiting rod 21 extends into the sliding groove, the middle part of the limiting rod 21 is hinged with the strip groove, the fixed block 22 is arranged in the strip groove, the sliding rod 24 is arranged on the fixed block 22, the walking rod 23 is sleeved on the sliding rod 24, the walking rod 23 is connected with the sliding rod 24 in a sliding manner, the walking rod 23 is abutted against one end of the limiting rod 21 in the sliding groove, the fifth spring 25 is sleeved on the sliding rod 24, one end of the fifth spring 25 is connected with the fixed block 22, the other end of the fifth spring 25 is connected with the walking rod 23, and the limiting rod 21 close to the moving rod 19 is abutted against the moving rod 19.

Here, the fifth spring 25 is in a deformed state, restoring force of the fifth spring 25 generates outward thrust to the walking rod 23, thereby making the walking rod 23 abut against below the limiting rod 21, thereby supporting the limiting rod 21, the moving rod 19 abuts against on the limiting rod 21, thereby performing auxiliary support on the moving rod 19 through the limiting rod 21, thereby avoiding too large bearing of the moving rod 19, causing thread sliding in the screw rod 18 and the moving rod 19, thereby protecting the screw rod 18, when the motor 17 operates, driving force of the screw rod 18 to the moving rod 19 is greater than restoring force of the fifth spring 25, thereby making the moving rod 19 capable of pressing down the limiting rod 21, and making the limiting rod 21 rotate into the strip-shaped groove.

In order to realize better supporting effect, the bar groove has two, and two bar grooves set up the both sides at the spout respectively, spacing subassembly has two, and two spacing subassemblies are located two bar inslots respectively.

In order to take down the workpiece conveniently, an elastic belt 26 is arranged at one end of each rotating rod 3, which is far away from the push rod 9, and the elastic belt 26 is sleeved on the two rotating rods 3.

In order to position the elastic band 26, a groove is provided on the rotating rod 3, and the elastic band 26 is located in the groove.

In order to reduce friction, a roller 27 is arranged at one end of the walking rod 23, which is abutted against the limiting rod 21.

In order to reduce friction, the end of the positioning rod 12 against the rotating rod 3 is provided with a pulley 28.

When the device is used, the vehicle body 1 is moved, the device is moved to a workpiece, the push plate 8 is positioned right above the workpiece, the motor 17 is operated, the motor 17 drives the screw rod 18 to rotate, the screw rod 18 drives the moving rod 19 to move, the moving rod 19 drives the fixed rod 2 to move, so that the clamping mechanism moves, the moving rod 19 is positioned in the chute, so that the moving rod 19 can only move along the axis direction of the chute, the movement of the moving rod 19 is limited, the moving rod 19 drives the clamping mechanism to move downwards, so that the push plate 8 moves downwards to be abutted against the top of the workpiece, the two press plates 5 move to two sides of the workpiece, along with the continuous operation of the lifting mechanism, the push plate 8 is abutted against the top of the workpiece and cannot move, the fixed rod 2 continues to move downwards, so that the rotating rod 3 moves downwards, the rotating rod 3 is blocked by the positioning rod 12 to rotate outwards, under the action of a lever principle, the other end of the rotating rod 3 rotates reversely, so that the rotating rod 3 drives the first spring 7 to move, the first spring 7 pulls the pressing block 6 to move, the pressing block 6 drives the pressing rod 4 to move, the pressing rod 4 drives the pressing plate 5 to move, and the pressing plate 5 is attached to the side surface of a workpiece tightly, so that two sides of the workpiece are clamped tightly, along with the continuous movement of the fixing rod 2, one end of the rotating rod 3, which is close to the positioning rod 12, continues to rotate outwards, so that one end of the rotating rod 3, which is close to the pressing plate 5, continues to move towards the direction of the workpiece, the pressing plate 5 is abutted against the workpiece and cannot move, so that the distance between the rotating rod 3 and the pressing block 6 is increased, so that the first spring 7 is stretched, the restoring force of the first spring 7 generates pulling force on the pressing block 6, the pressing block 6 generates pushing force on the pressing rod 4, the pressing rod 4 generates pushing force on the pressing plate 5, so that the pressing plate 5 can better clamp the workpiece, and realize better clamping effect, when the first spring 7 is stretched to the limit, so that the rotating rod 3 cannot rotate, along with the continuous movement of the fixed rod 2, the rotating rod 3 presses the positioning rod 12, the positioning rod 12 compresses the third spring 13, the restoring force of the third spring 13 generates outward thrust to the positioning rod 12, the positioning rod 12 generates outward thrust to the rotating rod 3, so that the pressure towards the workpiece direction is continuously applied to one end, close to the pressing plate 5, of the rotating rod 3, so that a better clamping effect is realized, here, the fixed rod 2 moves along the axial direction of the push rod 9, so that the locking unit moves downwards, when the locking ball 15 moves to the locking groove position close to the push plate 8, the locking ball 15 is not blocked, under the action of the restoring force of the fourth spring 16, the locking ball pops up and is clamped into the locking groove, so that the push rod 9 and the fixed rod 2 are locked, and the restoring force of the fourth spring 16 is greater than that of the first spring 7, The sum of the restoring forces of the second spring 11 and the third spring 13, so that the fixed rod 2 and the push rod 9 can be kept in a locked state, so that a clamping state of a workpiece is kept, the restoring force of the springs is used as a clamping force, flexible clamping is adopted, rigid clamping is prevented from damaging the workpiece, the workpiece is protected, then the motor 17 is operated in a reverse direction, the screw rod 18 is rotated in a reverse direction, the screw rod 18 drives the moving rod 19 to move in a reverse direction, so that the clamping mechanism moves in a reverse direction, so that the workpiece is separated from the ground, then the vehicle body 1 is moved, the device is moved to a preset point, the motor 17 is operated again, so that the screw rod 18 drives the moving rod 19 to move downwards, so that the workpiece is placed on the ground, then the lifting mechanism is operated continuously, so that the fixed rod 2 is moved continuously, so that the locking ball 15 is moved out of the locking groove, the second spring 11 is further compressed, the pushing force of the restoring force of the second spring 11 on the push plate 8 is increased, thereby make push pedal 8 release the work piece, thereby take off the work piece, realize the transportation of work piece, here fifth spring 25 is in deformation state, the restoring force of fifth spring 25 produces outside thrust to walking position pole 23, thereby make walking position pole 23 support and lean on gag lever post 21 below, thereby support gag lever post 21, carriage release lever 19 supports and leans on gag lever post 21, thereby carry out the auxiliary stay through gag lever post 21 to carriage release lever post 19, thereby avoid carriage release lever post 19 bearing too big, cause the smooth silk of screw 18 and the interior screw thread of carriage release lever 19, thereby realize the protection to lead screw 18, when motor 17 operation, lead screw 18 is to the drive power of carriage release lever 19, be greater than fifth spring 25's restoring force, thereby make carriage release lever 19 can push down gag lever post 21, make gag lever post 21 rotatory income bar inslot.

Compared with the prior art, this a centre gripping transfer device for plastic products, the centre gripping of work piece is realized through fixture, realize fixture's lift through elevating system, realize the transportation of work piece through removing automobile body 1, compare with current fixture, this mechanism is through setting up multiple centre gripping, realize better tight effect of clamp to the work piece, and this mechanism adopts flexible centre gripping, the rigidity centre gripping is avoided drawing the flower and even damage the work piece, realize the protection to the work piece, compare with current elevating system, this mechanism carries out the auxiliary stay through spacing unit to carriage release lever 19, thereby it is impaired to avoid the too big screw thread that causes of lead screw 18 bearing, 18 realize the protection to the lead screw, and service life is prolonged.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.