Positioning device for fixing tire blank

Abstract

The utility model relates to a positioning device for fixing a tire blank in the technical field of manipulator positioning. The positioning device comprises a clamping jaw unit, a radial telescopic mechanism, a driving unit and a fixing mechanism, the radial telescopic mechanism comprises four sets of sliding block-connecting rod assemblies symmetrically arranged along the circumference at 90 degrees, one ends of connecting rods are hinged to sliding blocks, and the other ends of the connecting rods are hinged to a rotary connecting base. The clamping jaw unit comprises four sets of clamping jaws symmetrically arranged along the circumference, and the clamping jaws are connected with the sliding blocks through clamping jaw fixing discs. The driving unit comprises two air cylinders, and the output ends of the air cylinders drive the four connecting rods to move synchronously through air cylinder connectors. One end of the fixing mechanism is fixedly connected with the clamping jaw fixing disc, and the other end is connected with the mechanical arm; the device is suitable for grabbing and conveying tire blanks, and has the advantages of being accurate in positioning and higher in automation.

Description

Technical Field

[0001] This utility model relates to the field of robotic arm positioning technology, and in particular to a positioning device for fixing a fetal embryo. Background Technology

[0002] In tire manufacturing, the tire forming and vulcanization processes are crucial to tire quality. In existing technologies, inaccurate positioning during tire transport and alignment often leads to deviations in subsequent vulcanization processes, affecting tire uniformity and overall quality. Traditional positioning methods often employ simple mechanical limits or manual assistance, which are not only inefficient but also fail to meet the demands of high-precision production. Summary of the Invention

[0003] In view of this, this application proposes a positioning device for fixing a fetal embryo, which has the advantages of precise positioning and higher automation, and solves the problems mentioned in the background art.

[0004] This utility model provides the following technical solution: a positioning device for fixing a fetal embryo, characterized in that it includes a fixing bracket, a claw fixing plate, a claw, and a driving unit;

[0005] The chuck fixing plate is a plate-shaped structure with a circular cross-section;

[0006] The fixed bracket is long and narrow, with one end suitable for connection to the robot arm and the other end fixedly connected to one side of the claw fixing plate;

[0007] The claws are disposed on the plate surface of the claw fixing plate and are located on the other side of the claw fixing plate relative to the fixing bracket. There are multiple claws, which are spaced apart along the circumferential direction of the claw fixing plate, and the multiple claws can move toward the center position of the claw fixing plate.

[0008] The drive unit is mounted on the jaw fixing plate, located on the other side of the jaw fixing plate, and is connected to the jaw drive, enabling multiple jaws to reciprocate toward the center of the jaw fixing plate.

[0009] In one embodiment of the utility model, there are four grippers, and the interval between each pair of grippers is the same.

[0010] In one embodiment of the utility model, the claw includes a latch and a toothed claw;

[0011] The buckle is embedded in the inner side of the toothed claw, with one end fixedly connected to the toothed claw and the other end connected to the drive unit. The toothed claw is located at the edge of the claw fixing plate.

[0012] In one embodiment of the utility model, the toothed claw has an arc-shaped structure, and the buckle is located on the inner side of the arc-shaped structure of the toothed claw;

[0013] The buckle is a rectangular metal body that protrudes from the inner side of the toothed claw arc structure.

[0014] In one embodiment of the utility model, the drive unit includes a cylinder, a connecting rod, and a rotary connecting seat;

[0015] The rotary connecting seat is located at the center of the jaw fixing plate, and is located on the other side of the jaw fixing plate opposite to the jaw;

[0016] The number of sliders is multiple, and each slider can drive the claw to move toward the center of the claw fixing plate;

[0017] There are multiple connecting rods, one end of each connecting rod is rotatably connected to the rotary connecting seat, and the other end is rotatably connected to the slider, and the driving cylinder drives the connecting rod to rotate.

[0018] In one embodiment of the utility model, the connecting rod is a metal connecting rod with an L-shaped cross-section, and the number of the connecting rod and the slider corresponds one-to-one with the number of the chucks.

[0019] In one embodiment of the utility model, the drive unit further includes a cylinder connector;

[0020] The cylinder connector is fixed to one of the sliders and is located on the movement path of the drive cylinder.

[0021] In one embodiment of the utility model, the fixing bracket includes a fixing plate and a fixing rod;

[0022] The number of fixed plates is two, and the two fixed plates are arranged in parallel. The driving cylinder is located between the two fixed plates.

[0023] The number of fixing rods is multiple, and the multiple fixing rods are arranged parallel to each other along the vertical direction of the fixing plate, and are fixedly connected to the two fixing plates.

[0024] In one embodiment of the utility model, the claw fixing disc also includes a limit switch;

[0025] The limit switch is located on the other side of the jaw fixing plate, relative to the jaw.

[0026] In one embodiment of the utility model, the outer side of the toothed claw is provided with evenly spaced raised lines.

[0027] The beneficial effects of this utility model are as follows: By setting four circumferentially equidistant claws in conjunction with an L-shaped connecting rod and a cylinder-driven synchronous motion structure, high-precision four-point positioning is achieved. Specifically, when the cylinder-driven connecting rod rotates, it drives the claws to move towards the center of the claw fixing plate, realizing the tightening and loosening of the claws, and realizing the grasping and transport of the embryo. The interval convex texture on the outer side of the arc-shaped toothed claws enhances the gripping friction and prevents the embryo from slipping. The rectangular buckle is firmly connected to the toothed claws, improving the overall gripping stability. The fixed support structure composed of double fixing plates and multiple fixing rods is robust and can withstand the force during gripping. The limit switch realizes automated control, reduces manual intervention, and improves production efficiency.

[0028] Other features and aspects of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0029] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this application together with the specification and serve to explain the principles of this application.

[0030] Figure 1 This diagram shows the main structure of a positioning device for fixing a fetus according to an embodiment of this application;

[0031] Figure 2 This invention relates to a front view of a four-point positioning device for fixing a fetal embryo, according to an embodiment of this application.

[0032] Figure 3 Another front view of a four-point positioning device for fixing a fetal embryo, according to an embodiment of this application;

[0033] Figure 4 This is a top view of a four-point positioning device for fixing a fetus according to an embodiment of this application. Detailed Implementation

[0034] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0035] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0038] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0039] Specific references Figure 1 As a positioning device for fixing a tire blank according to the present invention, the device includes: a fixed bracket, a claw fixing plate 122, claws, and a drive unit; the claw fixing plate 122 is a plate-shaped structure with a circular cross-section; the fixed bracket is long and narrow, with one end suitable for connection to a robot arm 200, and the other end fixedly connected to one side of the claw fixing plate 122; the claws are disposed on the plate surface of the claw fixing plate 122, located on the other side of the claw fixing plate 122 relative to the fixed bracket, and there are multiple claws, which are spaced apart along the circumferential direction of the claw fixing plate 122, and the multiple claws can move toward the center position of the claw fixing plate 122; the drive unit is disposed on the claw fixing plate 122, located on the other side of the claw fixing plate 122 relative to the claws, and the drive unit is driven connected to the claws, and can drive the multiple claws to reciprocate toward the center position of the claw fixing plate.

[0040] In this example, there are four chucks, with each pair of chucks spaced equally apart, and they are equidistantly distributed along the circumferential direction of the chuck fixing plate 122 to ensure uniform clamping force on the tire blank and improve positioning stability.

[0041] In this example, the chuck includes a latch 121 and a toothed claw 123; the latch 121 is embedded inside the toothed claw 123, with one end fixedly connected to the toothed claw 123 and the other end connected to the drive unit, and the toothed claw 123 is located at the edge of the chuck fixing plate 122; specifically, the toothed claw 123 has an arc-shaped structure that matches the arc-shaped surface of the tire blank, and the latch 121 is a rectangular metal body that protrudes relative to the inner side of the arc-shaped structure of the toothed claw 123 to enhance the stability of the connection with the drive unit.

[0042] In this example, the toothed claw 123 has evenly spaced raised grooves on its outer side, which can increase the friction between the claw and the fetus, prevent the fetus from slipping during gripping and transportation, and improve gripping reliability.

[0043] In this example, the drive unit includes a cylinder 131, a connecting rod 112, a rotary connecting seat 113, and a slider 111. The rotary connecting seat 113 is located at the center of the jaw fixing plate 122, and is located on the other side of the jaw fixing plate 122 relative to the jaw. There are four sliders 111, corresponding one-to-one with the number of jaws. Each slider 111 can drive the corresponding jaw to move towards the center of the jaw fixing plate 122. There are four connecting rods 112, which are L-shaped metal connecting rods, corresponding one-to-one with the number of sliders 111. One end of each connecting rod 112 is rotatably connected to the rotary connecting seat 113, and the other end is rotatably connected to the slider 111. The drive cylinder 131 drives the connecting rod to rotate, thereby driving the slider and jaw to move synchronously.

[0044] In this example, the drive unit also includes a cylinder connector 132, which is fixed on one of the sliders 111 and located on the movement path of the drive cylinder 131. When the cylinder 131 extends or retracts, it pushes the slider 111 through the cylinder connector 132, and then through the linkage of the connecting rod 112 and the rotating connecting seat 113, the synchronous reciprocating movement of the four sliders 111 and the chuck is realized.

[0045] In this example, the fixed support includes a fixed plate 151 and a fixed rod 152; there are two fixed plates 151 arranged in parallel, and the drive cylinder 131 is located between the two fixed plates 151; there are multiple fixed rods 152 arranged in parallel along the vertical direction of the fixed plates 151, which fix the two fixed plates 151 to form a stable support structure and ensure the overall stability of the device when gripping and transporting the tire blank.

[0046] In this example, the chuck fixing plate 122 also includes a limit switch 141. The limit switch 141 is located on the other side of the chuck fixing plate 122 relative to the chuck, and can control the movement stroke of the connecting rod, thereby precisely controlling the movement distance of the chuck and achieving accurate positioning of the tire blank.

[0047] In this example, the chuck fixing plate 122 is a disc-shaped structure with four rectangular grooves symmetrically opened at 90 degrees along the circumference. The slider 111 is driven to move in the grooves by the connecting rod 112 to ensure the stability of the movement of the slider 111 and the chuck.

[0048] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A positioning device for fixing a fetal embryo, suitable for installation on a robotic arm, characterized in that, include: Fixed bracket, chuck fixing plate, chuck and drive unit; The claw fixing plate is a plate-shaped structure with a circular cross-section; The fixed bracket is long and narrow, with one end suitable for connection to the robot arm and the other end fixedly connected to one side of the claw fixing plate; The claws are disposed on the plate surface of the claw fixing disk and are located on the other side of the claw fixing disk relative to the fixing bracket. There are multiple claws, which are spaced apart along the circumferential direction of the claw fixing disk, and the multiple claws can move toward the center position of the claw fixing disk. The drive unit is mounted on the jaw fixing plate, located on the other side of the jaw fixing plate relative to the jaw, and the drive unit is connected to the jaw drive, enabling multiple jaws to reciprocate towards the center of the jaw fixing plate.

2. The positioning device for fixing the embryo according to claim 1, characterized in that, The number of grippers is 4, and the interval between any two grippers is the same.

3. The positioning device for fixing the embryo according to claim 1, characterized in that, The jaw includes a latch and a toothed jaw; The buckle is embedded in the inner side of the toothed claw, with one end fixedly connected to the toothed claw and the other end connected to the drive unit. The toothed claw is located at the edge of the claw fixing plate.

4. The positioning device for fixing the embryo according to claim 3, characterized in that, The toothed claw has an arc-shaped structure, and the buckle is located on the inner side of the arc-shaped structure of the toothed claw; The buckle is a rectangular metal body that protrudes from the inner side of the toothed claw arc structure.

5. The positioning device for fixing the embryo according to claim 1, characterized in that, The drive unit includes a cylinder, a connecting rod, and a rotary connecting seat; The rotary connecting seat is located at the center of the jaw fixing plate, and is located on the other side of the jaw fixing plate opposite to the jaw; There are multiple sliders, and each slider can drive the claw to move toward the center of the claw fixing plate; There are multiple connecting rods, one end of each connecting rod is rotatably connected to the rotary connecting seat, and the other end is rotatably connected to the slider, and the driving cylinder drives the connecting rod to rotate.

6. The positioning device for fixing the embryo according to claim 5, characterized in that, The connecting rod is a metal connecting rod with an L-shaped cross-section, and the number of the connecting rod and the slider corresponds one-to-one with the number of the chucks.

7. The positioning device for fixing the embryo according to claim 5, characterized in that, The drive unit also includes a cylinder connector; The cylinder connector is fixed to one of the sliders and is located on the movement path of the drive cylinder.

8. The positioning device for fixing the embryo according to claim 1, characterized in that, The fixed bracket includes a fixed plate and a fixed rod; There are two fixing plates, which are arranged in parallel, and the driving cylinder is located between the two fixing plates. The number of fixing rods is multiple, and the multiple fixing rods are arranged parallel to each other along the vertical direction of the fixing plate, and are fixedly connected to the two fixing plates.

9. The positioning device for fixing the embryo according to claim 1, characterized in that, The jaw fixing plate also includes a limit switch; The limit switch is located on the other side of the jaw fixing plate, relative to the jaw.

10. The positioning device for fixing the embryo according to claim 4, characterized in that, The outer side of the toothed claw is provided with evenly spaced raised lines.

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