A wrench assembly mechanism with a plastic spring

Abstract

The present invention belongs to the technical field of industrial automation, and particularly relates to a wrench assembly mechanism. A wrench assembly mechanism with a plastic spring includes a frame, on which a wrench assembly component is provided. The wrench assembly component includes: a top cylinder arranged on the frame, with the axial direction of its piston being vertical; a wrench support plate located above the top cylinder, provided with a top groove, and the piston of the top cylinder is below the top groove; at least one wrench assembly seat, having a base, a support seat and a wrench loading fixture. The base and the support seat are respectively and relatively fixed on two opposite sides of the top groove on the wrench support plate. One end of the wrench loading fixture is hinged to the base through a hinge shaft, and the bottom surface of the other end of the wrench loading fixture abuts against the support seat. The wrench loading fixture straddles above the top groove. The present invention simulates the manual assembly angle, the rotation angle is adjustable, which ensures the assembly consistency, the assembly is stable, and the labor intensity is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of industrial automation, and particularly relates to a wrench assembly mechanism. Background Art

[0002] In a continuous sprayer, a commonly used spring is made of stainless steel and can meet normal use. However, in sprayers that require foreign trade and high-quality products, the components in contact with the liquid cannot be made of metal. A plastic elastic piece is designed on the elastic wrench and clamped on the main body to form an elastic component, which is called a plastic spring. The plastic spring is outside the piston cavity and will not contact water. However, the plastic spring is very soft and easy to deform, and the connection between the plastic spring and the wrench is very thin and easy to break. When installing the wrench with the plastic spring into the sprayer main body, great care needs to be taken with the position of the plastic spring.

[0003] When installing the wrench into the main body product, an artificial method is usually adopted. Since the wrench needs to be installed at a specific angle during assembly, the worker needs to first insert the wrench into the main body product along the main body card slot, and then press the plastic spring into the main body limit slot. The artificial method has the following problems:

[0004] (1) For the artificial installation method, manual pressing results in high labor intensity.

[0005] (2) Fatigue caused by long-term pressing may lead to the wrench not being fully inserted into the card slot, which has a certain impact on the subsequent product quality.

[0006] (3) When the plastic spring is pressed into the limit later, the spring may break. Summary of the Invention

[0007] Aiming at the above technical problems, the present invention aims to provide a wrench assembly mechanism with a plastic spring.

[0008] A wrench assembly mechanism with a plastic spring includes a frame, and a wrench assembly component is arranged on the frame. The wrench assembly component includes:

[0009] An upper top cylinder is arranged on the frame, and the axial direction of its piston is vertical;

[0010] A wrench support plate is located above the upper top cylinder and is provided with an upper top groove. The piston of the upper top cylinder is below the upper top groove;

[0011] At least one wrench assembly seat has a base, a support seat and a wrench manual loading device. The base and the support seat are respectively fixedly arranged on two opposite sides of the upper top groove on the wrench support plate. One end of the wrench manual loading device is hinged to the base through a hinge shaft, and the bottom surface of the other end of the wrench manual loading device abuts against the support seat. The wrench manual loading device straddles above the upper top groove.

[0012] The wrench with a plastic spring of the present invention can place the wrench on the wrench loading fixture manually or through a wrench feeding mechanism. When assembling the wrench is required, since one end of the wrench loading fixture can rotate, after the piston of the upper lifting cylinder below extends upward, the wrench loading fixture can be lifted to a preset angle, providing a good assembling angle for the wrench assembling mechanism to pick up and assemble the wrench. The above method can simulate the manual assembling angle, providing a good assembling angle for the subsequent wrench assembling mechanism to assemble the wrench, greatly improving the assembling stability.

[0013] An articulated return spring is sleeved on the articulated shaft, and the wrench loading fixture is reset by the restoring force provided by the articulated return spring.

[0014] The wrench assembling component further includes:

[0015] An upper lifting block, with a hemispherical structure, the diameter of which is larger than the diameter of the upper lifting groove. The plane of the upper lifting block covers the upper lifting groove, and the arc surface of the upper lifting block abuts against the bottom surface of the wrench loading fixture.

[0016] An upper lifting rod, the top of which is integrally connected to the plane of the upper lifting block, and the bottom passes through the upper lifting groove and has a preset distance from the piston of the upper lifting cylinder.

[0017] The wrench assembling component further includes:

[0018] A rotating disk, rotatably arranged on the frame, the rotation axis being vertical, and fixed to the bottom surface of the wrench support plate, driving the wrench support plate to make a rotational movement by the rotating disk.

[0019] The rotating disk is connected to a servo motor, a stepping motor or a rotary cylinder, and is powered by the servo motor, the stepping motor or the rotary cylinder.

[0020] There are two wrench assembling seats, respectively arranged on both sides of the wrench support plate.

[0021] A wrench assembling mechanism is arranged on the frame, and the wrench assembling mechanism is located at the rear side of the wrench assembling component. The wrench assembling mechanism includes:

[0022] A transverse translation cylinder, arranged on the frame, the axis of its piston being transverse;

[0023] A vertical translation cylinder, the axis of its piston being vertical. The vertical translation cylinder is fixed on the piston of the transverse translation cylinder, and the transverse translation cylinder drives the vertical translation cylinder to make a transverse movement;

[0024] A wrench clamping jaw cylinder, fixed on the piston of the vertical translation cylinder, and driven by the vertical translation cylinder to make a vertical movement;

[0025] A wrench jaw is arranged on the wrench jaw cylinder, and the wrench jaw is driven by the wrench jaw cylinder to clamp or release the wrench.

[0026] Two mandrel receiving grooves are respectively arranged on the front side surface of the wrench jaw. The two mandrel receiving grooves are respectively located on the left and right sides of the wrench jaw. Each mandrel receiving groove is connected to an external air source through an air circuit.

[0027] The wrench assembling mechanism further includes:

[0028] Two movable mandrels, one end of which is restricted in a corresponding mandrel receiving groove by a return spring, and the other end can extend out of the mandrel receiving groove.

[0029] The wrench assembling mechanism further includes:

[0030] Two retaining edges, in an inverted L-shaped structure, are located below the movable mandrel. One section is fixed to the outer wall of the wrench jaw, and the other section is arranged in front of the front side surface of the wrench jaw with a preset distance.

[0031] The wrench assembling mechanism further includes:

[0032] At least one sensor is fixed to the frame through a sensor connecting rod. The sensing surface of the sensor faces the wrench loading fixture, and is used to sense whether there is a wrench with a good inclination angle. The number of sensors is the same as the number of wrench loading fixtures.

[0033] A wrench feeding mechanism is arranged on the frame. The wrench feeding mechanism is arranged on the side of the wrench assembly component. The wrench feeding mechanism includes:

[0034] A full-dish storage area for trays, provided with a stack storage frame for storing wrench trays. A tray separation mechanism for separating two adjacent wrench trays is respectively arranged on the left and right sides of the stack storage frame.

[0035] A first push plate transverse movement module is arranged below the stack storage frame. Its moving direction is the front-back direction, and a first push plate is arranged at its moving end. The first push plate is arranged at the rear side of the stack storage frame.

[0036] A conveyor belt temporary storage area is provided with a tray conveyor belt. The end of the tray conveyor belt is located at the front side of the stack storage frame to receive the wrench tray pushed out by the first push plate.

[0037] A second push plate transverse movement module is arranged in front of the tray conveyor belt. Its moving direction is the left-right direction, and a second push plate is arranged at its moving end. The second push plate is arranged at the front right side of the tray conveyor belt.

[0038] A positioning work area, provided with a positioning support plate, the positioning support plate is located on the front left side of the material tray conveyor belt, the positioning support plate is provided with two positioning support grooves, the length direction of the positioning support groove is the front-to-back direction, the two positioning support grooves are arranged side by side along the left-to-right direction, and an auxiliary support groove is arranged at the rear between the two positioning support grooves;

[0039] A third push plate transverse movement module is arranged below the positioning support plate, and its moving direction is the front-back direction. Two third push plates are arranged at its moving end, and the two third push plates extend out of the corresponding positioning support grooves respectively;

[0040] A push plate auxiliary cylinder is fixed under the positioning support plate, the axial direction of its piston is the front-to-back direction, the piston is connected to a straight rack, the straight rack meshes with a gear, the gear is connected to a rotating shaft, an auxiliary guide block is covered and fixed on the rotating shaft, the upper surface of the auxiliary guide block is an arc surface and is located in the auxiliary support groove, and the top surface of the auxiliary guide block is flush with the surface of the positioning support plate or not higher than the surface of the positioning support plate;

[0041] An empty tray area is provided with an empty tray support plate, the empty tray support plate is located behind the positioning support plate, and receives the empty wrench tray pushed out from the positioning support plate;

[0042] An XY moving module has a moving direction of left and right and front and back, and a moving range located in a positioning work area. A material picking claw cylinder is provided at its moving end, and a material picking claw is provided on the material picking claw cylinder.

[0043] Beneficial effects: The present invention has the following advantages:

[0044] 1. Simulate the manual assembly angle, the rotation angle can be adjusted to ensure assembly consistency, stable assembly and reduce labor intensity.

[0045] 2. The plastic spring and the wrench are assembled in place at the same time, and the spring will not break or cause product damage, while also ensuring the stability of the insertion.

[0046] 3. Mechanical positioning can ensure that each wrench can be inserted into the slot.

[0047] 4. The rotating disc can effectively improve work efficiency and ensure the timeliness of material feeding.

[0048] 5. The reciprocating mandrels are installed on both sides of the wrench jaws, and the external rib design of the plastic spring can well control the angle of the spring.

[0049] 6. The wrench is fed by a wrench feeding mechanism, which will not damage the surface, ensuring that the product appearance is not scratched, and can feed without stopping the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 Schematic diagram of a positional relationship between a wrench assembly component and a wrench assembly mechanism of the present invention;

[0051] Figure 2 For Figure 1 Another perspective schematic diagram;

[0052] Figure 3 Schematic diagram of a structure of a wrench assembly component of the present invention;

[0053] Figure 4 Schematic diagram of a structure of a wrench assembly mechanism of the present invention;

[0054] Figure 5 Partial structure schematic diagram of a wrench assembly mechanism of the present invention;

[0055] Figure 6 Schematic diagram of a structure of a wrench feeding mechanism of the present invention. Detailed implementation manners

[0056] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below with reference to specific illustrations.

[0057] Refer to Figure 1 And Figure 2 , a wrench assembly mechanism with a plastic spring, including a frame, on which a wrench assembly component 1 and a wrench assembly mechanism 2 are provided. The wrench assembly component 1 is located on the front side of the wrench assembly mechanism 2. The wrench assembly component 1 is used to adjust the wrench 4 to be assembled to a preset inclination angle. The wrench assembly mechanism 2 is used to install the wrench 4 with the adjusted angle into the main body slot of the main body product, and at the same time install the plastic spring on the wrench 4 into the main body limiting slot of the main body product.

[0058] Refer to Figure 1 To refer to Figure 3 , the wrench assembly component 1 includes an upper lifting cylinder 11, a wrench support plate 12, at least one wrench assembly seat 13, an upper lifting block 14, an upper lifting rod 15, and a rotating disk 16. Among them, a single wrench assembly seat 13 includes a base 131, a support seat 132, a manual wrench placement 133, and a hinge shaft 134.

[0059] The upper lifting cylinder 11 is arranged on the frame, and the axial direction of the piston of the upper lifting cylinder 11 is vertical.

[0060] The wrench support plate 12 is located above the upper lifting cylinder 11. An upper lifting groove that communicates up and down is provided on the wrench support plate 12, and the piston of the upper lifting cylinder 11 is below the upper lifting groove. The upper lifting groove is preferably a circular groove, and the center of the upper lifting groove is preferably concentric with the axis of the piston.

[0061] The wrench assembly base 13 can be one, preferably two. The two wrench assembly bases 13 are respectively arranged on both sides of the wrench support plate 12. When there are two wrench assembly bases 13, there are also two upper top grooves on the wrench support plate 12. The double-station wrench assembly base 13 can place a new wrench 4 during the assembly process, saving assembly time.

[0062] In a single wrench assembly base 13, the base 131 and the support base 132 are respectively fixed on opposite sides of the upper top groove on the wrench support plate 12. As Figure 3 shown in the figure, the base 131 and the support base 132 are respectively arranged along the front and back on the wrench support plate 12, and the corresponding upper top groove is located between the base 131 and the support base 132. The wrench placing fixture 133 straddles above the upper top groove. One end of the wrench placing fixture 133 is hingedly connected to the base 131 via a hinge shaft 134, and the bottom surface of the other end of the wrench placing fixture abuts against the support base 132. In order to enable the wrench assembly base 13 to return stably after being jacked up, it is preferably that a hinge return spring is sleeved on the hinge shaft 134, and the wrench placing fixture 133 is reset by the restoring force provided by the hinge return spring.

[0063] The upper top block 14 is of a hemispherical structure. The diameter of the upper top block 14 is larger than the diameter of the upper top groove. The plane of the upper top block 14 covers the upper top groove, and the arc surface of the upper top block 14 abuts against the bottom surface of the wrench placing fixture 133.

[0064] The top of the upper top rod 15 is integrally connected to the plane of the upper top block 14. The bottom of the upper top rod 15 passes through the upper top groove and has a preset distance from the piston of the upper top cylinder 11. That is, the upper top rod 15 is located at a preset distance above the upper top cylinder 11. When there are two wrench assembly bases 13, one upper top rod 15, the upper top block 14 and the wrench assembly base 13 above it are docked with the upper top cylinder 11, and the other upper top rod 15, the upper top block 14 and the wrench assembly base 13 above it are away from the upper top cylinder 11.

[0065] The rotating disk 16 is rotatably arranged on the frame. The rotation axis of the rotating disk 16 is vertical. The rotating disk 16 is fixed to the bottom surface of the wrench support plate 12, and drives the wrench support plate 12 to rotate, thereby driving the wrench assembly base 13 on the wrench support plate 12 to dock with or away from the upper top cylinder 11. The rotating disk 16 is connected to a servo motor, a stepping motor or a rotating cylinder, and the power is provided by the servo motor, the stepping motor or the rotating cylinder. As Figure 3 shown in the figure, the servo motor 17 is used to provide power for the rotating disk 16. The connection method between the servo motor 17 and the rotating disk 16 adopts the structure in the prior art and will not be elaborated here.

[0066] The wrench 4 with a plastic spring of the present invention can place the wrench 4 on the wrench loading fixture 133 manually or through a wrench feeding mechanism. By rotating the rotating disk 16, the wrench loading fixture 133 is rotated to the side close to the wrench assembling mechanism 2. When the wrench 4 needs to be assembled, since one end of the wrench loading fixture 133 can rotate, after the piston of the upper pushing cylinder 11 extends upward, it pushes against the bottom of the upper pushing rod 15 to drive the upper pushing rod 15 to rise together. Then, through the upper pushing block 14, the wrench loading fixture 133 is pushed up to a preset angle for the wrench assembling mechanism 2 to pick up and assemble. The arc surface design of the upper pushing block 14 can avoid hard wear of the wrench loading fixture 133. After the material is picked up, the upper pushing cylinder 11 descends and resets, the wrench loading fixture 133 descends and resets, and the rotating disk 16 rotates to rotate the wrench loading fixture 133 to the side away from the wrench assembling mechanism 2. Again, the wrench 4 is placed on the empty wrench loading fixture 133 manually or through a wrench feeding mechanism. The above method can simulate the manual assembling angle, provide a good assembling angle for the subsequent wrench assembling mechanism 2 to assemble the wrench 4, and greatly improve the assembling stability.

[0067] Referring to Figure 1 、 Figure 2 、 Figure 4 and Figure 5 ,the wrench assembling mechanism 2 is located at the rear side of the wrench assembling component 1. The wrench assembling mechanism 2 includes a transverse movement cylinder 21, a vertical movement cylinder 22, a wrench clamping jaw cylinder 23, wrench clamping jaws 24, two movable mandrels 25, two retaining edges 26, and at least one inductor 27.

[0068] The transverse movement cylinder 21 is arranged on the frame, and the axial direction of the piston of the transverse movement cylinder 21 is transverse.

[0069] The axial direction of the piston of the vertical movement cylinder 22 is vertical. The vertical movement cylinder 22 is fixed on the piston of the transverse movement cylinder 21, and the transverse movement cylinder 21 drives the vertical movement cylinder 22 to perform transverse movement.

[0070] The wrench clamping jaw cylinder 23 is fixed on the piston of the vertical movement cylinder 22, and the vertical movement cylinder 22 drives the wrench clamping jaw cylinder 23 to perform vertical movement.

[0071] The wrench clamping jaws 24 are arranged on the wrench clamping jaw cylinder 23, and the wrench clamping jaw cylinder 23 drives the wrench clamping jaws 24 to clamp or release the wrench 4. The wrench clamping jaws 24 are preferably made of stainless steel and are polished by mirror polishing before use to ensure that the wrench 4 is not scratched when the two sides of the wrench 4 are clamped.

[0072] When it is necessary to assemble the wrench 4 and the manual wrench loading fixture 133 is lifted to a preset angle, the horizontal translation cylinder 21 and the vertical translation cylinder 22 cooperate to move the wrench jaw cylinder 23 and the wrench jaw 24 above the manual wrench loading fixture 133. The wrench jaw cylinder 23 drives the wrench jaw 24 to clamp and pick up the wrench 4 at the inclined angle, and then the horizontal translation cylinder 21 and the vertical translation cylinder 22 cooperate to move the wrench jaw cylinder 23 and the wrench jaw 24 to the main product to assemble the wrench 4. Through the wrench assembly mechanism 2, the wrench 4 and the spring can be simultaneously inserted into the main body slot of the main product without causing damage to the product.

[0073] On the front side surfaces of the wrench jaws 24, two mandrel receiving grooves are respectively provided. The two mandrel receiving grooves are respectively located on the left and right sides of the wrench jaw 24. Each mandrel receiving groove is connected to an external air source through an air path. When manufacturing the wrench jaw 24, it is necessary to ensure the airtightness of the processing so as not to leak air after connecting to the external air source and to realize the reciprocating movement of the movable mandrel 25.

[0074] Refer to Figure 5 , one end of the movable mandrel 25 is restricted in a corresponding mandrel receiving groove by a return spring, and the other end of the movable mandrel 25 can extend out of the mandrel receiving groove. Before the wrench jaw 24 clamps the wrench 4 and assembles it into the main body slot of the main product, the movable mandrel 25 can be pushed out by the air source, so as to push the plastic spring on the wrench 4 clamped by the wrench jaw 24, so that the angle of the plastic spring can smoothly enter the limit slot.

[0075] Refer to Figure 5 , the retaining edge 26 adopts an inverted L-shaped structure. The retaining edge 26 is located below the movable mandrel 25. One section of the two retaining edges is respectively arranged on the left and right sides of the outer wall of the wrench jaw 24, and the other section of the two retaining edges is respectively arranged in front of the front side surface of the wrench jaw 24 at a preset distance. As a result, the two retaining edges 26 are arranged opposite to each other left and right. The design of the L-shaped retaining edge 26 does not affect the wrench jaw 24 from clamping the wrench 4 and can be used as a limit. After the movable mandrel 25 is pushed out, when assembling the wrench 4 and the plastic spring, it can prevent the plastic spring from popping out of the limit slot. After the assembly is completed, both the plastic spring and the wrench 4 are clamped into the corresponding slots.

[0076] The number of the sensors 27 is the same as the number of the manual wrench loading fixtures 133. The sensors 27 are fixed to the frame through the sensor 27 connecting rods. The sensing surfaces of the sensors 27 face the manual wrench loading fixtures 133 and are used to sense whether there is a wrench 4 at the inclined angle. The sensors 27 are preferably proximity switches. When the manual wrench loading fixture 133 is tilted to the preset angle, the sensing surface of the sensor 27 can sense the wrench 4 at the inclined preset angle. At this time, it is considered that the wrench 4 can be clamped by the wrench jaw 24.

[0077] Refer to Figure 6, a wrench feeding mechanism 3 is arranged on the rack. The wrench feeding mechanism 3 is arranged on the side of the wrench assembly component 1. The wrench 4 is placed on the manual wrench loading position 133 far from the wrench jaw 24 by the wrench feeding mechanism 3 to achieve feeding without stopping the machine. The wrench feeding mechanism 3 includes a full tray storage area, a conveyor belt temporary storage area, a positioning working area, and an empty tray area. These four areas enclose a wrench feeding area with a mutually connected right-angled U-shaped structure.

[0078] A stack storage frame 312 for storing the wrench trays 311 is arranged in the full tray storage area. A tray separation mechanism 313 for separating two adjacent wrench trays 311 is respectively arranged on the left and right sides of the stack storage frame 312. The stack storage frame 312 and the tray separation mechanism 313 can adopt the structures for stack storage and separation of trays in the prior art. Therefore, it will not be elaborated here.

[0079] A first push tray transverse movement module 321 is arranged below the stack storage frame 312. The moving direction of the first push tray transverse movement module 321 is the front-back direction. A first push plate 322 is arranged at the moving end of the first push tray transverse movement module 321. The first push plate 322 is arranged at the rear side of the stack storage frame 312. The first push plate 322 is used to push the separated wrench tray 311 forward. The separated wrench tray 311 from the stack storage frame 312 can be sent from the full tray storage area to the conveyor belt temporary storage area through the first push tray transverse movement module 321.

[0080] A tray conveyor belt 331 is arranged in the conveyor belt temporary storage area. The end of the tray conveyor belt 331 is located at the front side of the stack storage frame 312. The tray conveyor belt 331 receives the wrench tray 311 pushed out by the first push plate 322.

[0081] A second push tray transverse movement module 341 is arranged at the front side of the tray conveyor belt 331. The moving direction of the second push tray transverse movement module 341 is the left-right direction. A second push plate 342 is arranged at the moving end of the second push tray transverse movement module 341. The second push plate 342 is arranged at the front right side of the tray conveyor belt 331. The second push plate 342 is used to push the wrench tray 311 conveyed to the front side by the tray conveyor belt 331 to the left.

[0082] A positioning support plate 351 is arranged in the positioning working area. The positioning support plate 351 is located at the front left side of the tray conveyor belt 331. Two positioning support grooves 352 are arranged on the positioning support plate 351. The length direction of the positioning support grooves 352 is the front-back direction. The two positioning support grooves 352 are arranged side by side in the left-right direction. An auxiliary support groove 353 is arranged behind the two positioning support grooves 352.

[0083] A third push plate transverse movement module 361 is arranged below the positioning support plate 351. The moving direction of the third push plate transverse movement module 361 is the front-back direction. Two third push plates 362 are arranged on the moving end of the third push plate transverse movement module 361. The two third push plates 362 respectively extend out of the corresponding positioning support grooves 352. The third push plate 362 is used to push the wrench tray 311 above the positioning support plate 351 backward.

[0084] A push plate auxiliary cylinder is fixed below the positioning support plate 351. The axial direction of the piston of the push plate auxiliary cylinder is the front-back direction. The piston of the push plate auxiliary cylinder is connected to a straight rack. The straight rack meshes with a gear. The gear is connected to a rotating shaft. An auxiliary guide block 363 is fixedly wrapped on the rotating shaft. The upper surface of the auxiliary guide block 363 is an arc surface and is located in the auxiliary support groove 353. The top surface of the auxiliary guide block 363 is flush with the plate surface of the positioning support plate 351 or is not higher than the plate surface of the positioning support plate 351.

[0085] An empty tray area is provided with an empty tray support plate 371. The empty tray support plate 371 is located behind the positioning support plate 351. The empty tray support plate 371 receives the empty wrench tray 311 pushed out from the positioning support plate 351.

[0086] The XY movement module 381 has its moving directions as the left-right direction and the front-back direction. The moving stroke range of the XY movement module 381 is located in the positioning working area. A material taking gripper cylinder 382 is arranged on the moving end of the XY movement module 381. A material taking gripper 383 is arranged on the material taking gripper cylinder 382. The XY movement module 381 drives the material taking gripper cylinder 382 to move above the wrench tray 311 in the positioning working area. The material taking gripper cylinder 382 drives the material taking gripper 383 to clamp or release the wrench 4 in the wrench tray 311. The XY movement module 381 sends the wrench 4 to the wrench placing manual fixture 133 away from the wrench gripper 24, realizing the automatic feeding of the wrench.

[0087] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A wrench assembly mechanism with a plastic spring, comprising a frame, characterized in that, A wrench assembly component is provided on the frame, and the wrench assembly component includes: An upward pushing cylinder is provided on the frame, and the axial direction of its piston is vertical; A wrench support plate is located above the upward pushing cylinder and is provided with an upward pushing groove. Below the upward pushing groove is the piston of the upward pushing cylinder; At least one wrench assembly seat, which has a base, a wrench placing fixture, and a support seat. The base is fixed on the wrench support plate. One end of the wrench placing fixture is hingedly connected to the base through a hinge shaft. The wrench placing fixture straddles above the upward pushing groove. The support seat and the base are respectively fixed on two opposite sides of the upward pushing groove on the wrench support plate. The top surface of the support seat abuts against the bottom surface of the other end of the wrench placing fixture. A hinge return spring is sleeved on the hinge shaft, and the wrench placing fixture is reset by the restoring force provided by the hinge return spring; An upward pushing block, having a hemispherical structure with a diameter larger than the diameter of the upward pushing groove. The flat surface of the upward pushing block covers the upward pushing groove, and the arc surface of the upward pushing block abuts against the bottom surface of the wrench placing fixture; An upward pushing rod, whose top is integrally connected to the flat surface of the upward pushing block, and whose bottom passes through the upward pushing groove and has a preset distance from the piston of the upward pushing cylinder; A wrench assembling mechanism is provided on the frame, and the wrench assembling mechanism is located at the rear side of the wrench assembly component. The wrench assembling mechanism includes: A transverse moving cylinder is provided on the frame, and the axial direction of its piston is horizontal; A vertical moving cylinder, whose axial direction of the piston is vertical. The vertical moving cylinder is fixed on the piston of the transverse moving cylinder, and the transverse moving cylinder drives the vertical moving cylinder to perform a transverse movement; A wrench clamping jaw cylinder is fixed on the piston of the vertical moving cylinder and is driven by the vertical moving cylinder to perform a vertical movement; A wrench clamping jaw is provided on the wrench clamping jaw cylinder. The wrench clamping jaw cylinder drives the wrench clamping jaw to clamp or loosen a wrench. Two mandrel accommodating grooves are respectively provided on the front side surface of the wrench clamping jaw. The two mandrel accommodating grooves are respectively located on the left and right sides of the wrench clamping jaw. Each mandrel accommodating groove is connected to an external air source through an air circuit; Two movable mandrels, one end of which is restricted in a corresponding mandrel accommodating groove by a return spring, and the other end can extend out of the mandrel accommodating groove.

2. The wrench assembly mechanism with a plastic spring according to claim 1, characterized in that, The wrench assembly component further includes: A rotating disk is rotatably provided on the frame, with the rotation axis being vertical and fixed to the bottom surface of the wrench support plate. The rotating disk drives the wrench support plate to perform a rotating movement.

3. The wrench assembly mechanism with a plastic spring according to claim 1, characterized in that, There are two wrench assembly seats, which are respectively arranged on both sides of the wrench support plate.

4. The wrench assembly mechanism with a plastic spring according to claim 1, characterized in that, The wrench assembling mechanism further includes: Two edge guards, having an inverted L-shaped structure, are located below the movable mandrels. One section is fixed to the outer wall of the wrench clamping jaw, and the other section is arranged in front of the front side surface of the wrench clamping jaw with a preset distance.

5. The wrench assembly mechanism with a plastic spring according to claim 1, characterized in that The wrench assembling mechanism further includes: At least one sensor is fixed on the frame through a sensor connecting rod. The sensing surface of the sensor faces the wrench placing fixture and is used to sense whether there is a wrench with a good inclination angle. The number of sensors is the same as the number of wrench placing fixtures.

6. The wrench assembly mechanism with a plastic spring according to claim 1, characterized in that A wrench feeding mechanism is provided on the frame. The wrench feeding mechanism is arranged on the side of the wrench assembly component and includes: A full tray storage area, which is provided with a stack storage frame for storing wrench trays. A tray separation mechanism for separating two adjacent wrench trays is respectively arranged on the left and right sides of the stack storage frame; A first push plate transverse movement module, which is arranged below the stack storage frame, and its movement direction is the front-back direction. A first push plate is arranged at the mobile end of the first push plate transverse movement module, and the first push plate is arranged at the rear side of the stack storage frame; A conveyor belt temporary storage area, which is provided with a tray conveyor belt. The end of the tray conveyor belt is located at the front side of the stack storage frame to receive the wrench tray pushed out by the first push plate; A second push plate transverse movement module, which is arranged in front of the tray conveyor belt, and its movement direction is the left-right direction. A second push plate is arranged at the mobile end of the second push plate transverse movement module, and the second push plate is arranged at the front right side of the tray conveyor belt; A positioning working area, which is provided with a positioning support plate. The positioning support plate is located at the front left side of the tray conveyor belt. Two positioning support grooves are arranged on the positioning support plate. The length direction of the positioning support grooves is the front-back direction. The two positioning support grooves are arranged side by side in the left-right direction. An auxiliary support groove is arranged at the rear between the two positioning support grooves; A third push plate transverse movement module, which is arranged below the positioning support plate, and its movement direction is the front-back direction. Two third push plates are arranged at the mobile end of the third push plate transverse movement module, and the two third push plates respectively extend out of the corresponding positioning support grooves; A push plate auxiliary cylinder, which is fixed below the positioning support plate. The axial direction of the piston of the push plate auxiliary cylinder is the front-back direction. The piston is connected with a straight rack. The straight rack meshes with a gear. The gear is connected with a rotating shaft. An auxiliary guide block is covered and fixed on the rotating shaft. The upper surface of the auxiliary guide block is an arc surface and is located in the auxiliary support groove. The top surface of the auxiliary guide block is flush with the plate surface of the positioning support plate or not higher than the plate surface of the positioning support plate; An empty tray area, which is provided with an empty tray support plate. The empty tray support plate is located behind the positioning support plate to receive the empty wrench tray pushed out by the positioning support plate; An XY movement module, whose movement directions are the left-right direction and the front-back direction. The movement stroke range of the XY movement module is located in the positioning working area. A material taking gripper cylinder is arranged at the mobile end of the XY movement module. A material taking gripper is arranged on the material taking gripper cylinder.

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