A new type of circulation mechanism

Abstract

The present invention discloses a novel circulation mechanism, which includes a bottom plate. A circulation conveying mechanism is arranged on the bottom plate and is used for reciprocatingly circulating and transporting tooling fixtures; a tooling hook component is arranged on the circulation conveying mechanism, and the tooling hook component can drive the tooling fixtures on the circulation conveying mechanism to move; a tooling switching mechanism is symmetrically arranged at both ends of the circulation conveying mechanism and is used for circularly switching the tooling fixtures on the circulation conveying mechanism; and a tooling return flow mechanism is arranged on the bottom plate and is used for providing a power source for the movement of the return flow tooling fixtures on the circulation conveying mechanism. The present invention has the characteristics of simple and reasonable structure, safe and reliable operation, high equipment compactness, low production cost, high production efficiency, etc. The production efficiency is increased to more than 2000 PCS / hour. In addition, the present invention can also be widely applied to the part assembly production in the hardware and electronics industries for popularization and use, and has a broad market prospect.

Description

Technical Field

[0001] The present invention relates to the technical field of relay production equipment, and particularly relates to a novel circulating mechanism for producing relays. Background Art

[0002] During the production process of relays, it is necessary to use a traveling fixture to transport them to a designated position before the relays can be produced and processed. In view of this, in the existing Chinese patent with the publication number CN208577044U, a traveling fixture pushing circulating mechanism based on a one-way ratchet mechanism is disclosed. It includes a slide rail bracket, a traveling fixture, a switching mechanism I, a switching mechanism II, a one-way ratchet pushing mechanism, a cylinder, an optical fiber seat, an inductive optical fiber, a slide rail, a cylinder seat, and a cylinder slideway; the bottom of the slide rail is installed with a slide rail bracket through screws; there are two slide rails, and they are arranged in parallel; the two ends of the slide rail are respectively fitted and installed with a switching mechanism I and a switching mechanism II. The above comparative patent has the following problems: 1) The "mouth"-shaped circulation occupies a large area, has low space utilization rate, and high cost; 2) When switching in the "mouth"-shaped circulation mode, the switching mechanism needs to move back and forth, and on the other side of each switch, a cylinder is also required to push out the fixture, and these two cylinders cannot operate simultaneously and must have a certain front-back sequence, making the entire structure relatively complex, difficult to maintain, and the process is also relatively complicated, with low production efficiency; 3) Using the way of the cylinder extending for positioning has high cost; 4) The noise is large during the production process (generated by the impact between the traveling fixture and the switching mechanism I, the switching mechanism II, and the slide rail bracket); 5) The traveling fixture moves at a high speed during the movement process, often causing damage to the sensor. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention provides a novel circulating mechanism. This circulating mechanism has a high degree of automation, a simple structure, convenient operation, and excellent comprehensive performance; this circulating mechanism improves the utilization rate of the plane space, reduces the occupied area of the machine table, and saves a large amount of cost; this circulating mechanism only needs to rotate unidirectionally to realize the switching of the fixture, and only one cylinder is required to complete the pushing out of the fixture when pushing out, greatly reducing the switching steps and improving the switching efficiency.

[0004] The present invention provides the following technical solutions: A novel circulating mechanism, including a bottom plate,

[0005] A circulating conveyor mechanism, arranged on the bottom plate, and two slideways are provided on the circulating conveyor mechanism for circulating the transportation of the fixture;

[0006] A fixture engaging component, arranged on the circulating conveyor mechanism, for providing a power source;

[0007] A tooling switching mechanism is symmetrically arranged at both ends of the circular conveying mechanism and is smoothly connected to the slideway. The tooling engaging component can drive the tooling switching mechanism to move, for pushing the tooling fixture on the circular conveying mechanism in and out; and

[0008] A tooling return mechanism is arranged on the bottom plate, for providing a power source for the movement of the return tooling fixture on the circular conveying mechanism;

[0009] Wherein, the working rotation directions of the symmetrically arranged tooling switching mechanisms are opposite. When the tooling engaging component drives to the left, the tooling fixture on the right-end tooling switching mechanism is pushed into the circular conveying mechanism, and at the same time, the original tooling fixture on the circular conveying mechanism is pushed into the left-end tooling switching mechanism; when the tooling engaging component drives to the right, the tooling fixture on the left-end tooling switching mechanism is pushed into the circular conveying mechanism, and at the same time, the original tooling fixture on the circular conveying mechanism is pushed into the right-end tooling switching mechanism, preparing for the next cycle.

[0010] Preferably, the new circular mechanism further includes a tooling positioning mechanism; the tooling positioning mechanism is arranged on the circular conveying mechanism, for positioning the tooling fixture on the circular conveying mechanism.

[0011] Preferably, the circular conveying mechanism includes a first slideway, a second slideway and a support block; the first slideway and the second slideway are arranged perpendicular to each other; both the first slideway and the second slideway are installed on the support block.

[0012] Preferably, the tooling engaging component includes a bracket;

[0013] A first power source is arranged on the bracket, for providing power;

[0014] A moving element is slidably arranged on the bracket, and the first power source can drive the moving element to move back and forth, and

[0015] Link elements are symmetrically arranged on the left and right sides of the moving element, for guiding the movement of the moving element and driving the tooling switching mechanism to work at the same time.

[0016] Particularly, the first power source is a cylinder, the cylinder is fixed to the bracket through a mounting plate, and position sensors are arranged at both the initial position and the extended position of the telescopic rod corresponding to the cylinder.

[0017] Preferably, the tooling switching mechanism includes a mounting base;

[0018] A second power source is arranged at the bottom of the mounting base, for providing power;

[0019] A circulating roller shaft component, rotatably arranged on the mounting base, for transporting a tooling fixture, and the second power source can drive the circulating roller shaft component to rotate; and

[0020] A push ring component, coaxially arranged with the circulating roller shaft component, and a connecting rod element can drive the push ring component to reciprocate back and forth.

[0021] Specifically, the circulating roller shaft component is a hollow rotating body; a plurality of circulating guide rails are arrayed on the circumferential side of the circulating roller shaft component, and the adjacent circulating guide rails are arranged at right angles; the circulating guide rail is provided with a first long strip-shaped slot; the first long strip-shaped slot penetrates through the hollow rotating body.

[0022] Specifically, the push ring component includes a push ring, and a pull rod is arranged on the push ring; a driving rod is connected to the middle position of the pull rod, and a threaded hole is arranged at one end of the driving rod for screwing and connecting with the connecting rod element.

[0023] Preferably, the tooling return mechanism includes: a return mechanism mounting frame;

[0024] A third power source, arranged on the return mechanism mounting frame, for providing a power source; and

[0025] A belt transmission mechanism, arranged on the return mechanism mounting frame, and the third power source can drive the belt transmission mechanism to rotate, for providing a frictional power input for the movement of the tooling fixture.

[0026] Preferably, the tooling positioning mechanism includes a positioning bracket;

[0027] An elastic element, arranged on the positioning bracket, for providing a driving elastic force;

[0028] A positioning rod element, slidably arranged on the positioning bracket; the elastic element can drive the positioning rod element to move up and down; and

[0029] A guide wheel element, fixedly arranged at the top end of the positioning rod element, for cooperating with the groove on the tooling fixture for positioning.

[0030] Compared with the prior art, the present invention has the following advantages:

[0031] 1) During operation, place the relay component on the tooling fixture. The tooling switching mechanism pushes it into the circular conveyor mechanism. Immediately afterwards, the hook tooling component set on the circular conveyor mechanism precisely pushes it to the other end at a certain speed in an orderly manner to complete the pushing. When the hook tooling component is working, the tooling switching mechanisms symmetrically arranged on both sides work simultaneously, intermittently rotating 90° each time. One is used to push the tooling fixture with the newly installed relay back into the circular conveyor mechanism and at the same time receive the returned tooling fixture; the other is used to receive the empty tooling fixture after assembly and at the same time push it into the circular conveyor mechanism and send it back to the starting point for reuse. Since the tooling switching mechanisms symmetrically arranged on both sides work simultaneously, the time check of the action is eliminated, thereby shortening the usage cycle. Since the switching of the tooling fixture is effectively reduced by the tooling switching mechanism, the occupied area is reduced and the space utilization rate is improved. Since the tooling switching mechanism can change the direction of the tooling cycle, the structural change is reduced.

[0032] 2) A new type of circular mechanism of the present invention has the characteristics of simple and reasonable structure, safe and reliable operation, high equipment compactness, low production cost, high production efficiency, etc. The production efficiency is increased to more than 2000 PCS / hour. In addition, the present invention can also be widely used in the parts assembly production of the hardware and electronics industries for popularization and use, and has a broad market prospect.

[0033] 3) When the new type of circular mechanism of the present invention works, it only needs to rotate unidirectionally, and when pushing out, it only needs one cylinder to complete the pushing, greatly reducing the switching steps and improving the switching efficiency.

[0034] 4) Structurally, the tooling positioning mechanism uses the compression force of the spring for positioning, which greatly reduces the cost compared with the method of using the cylinder to extend.

[0035] 5) Structurally, the circular conveyor mechanism, the hook tooling component, the tooling switching mechanism and the tooling return mechanism cooperate to work together, making the tooling fixture more stable during the movement process, making the noise generated during the whole process extremely small, further improving the stability of the whole circular mechanism and protecting the sensor at the same time, with a high overall service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a three-dimensional structure schematic diagram of an embodiment of the present invention;

[0037] Figure 2 It is an exploded structure schematic diagram of an embodiment of the present invention;

[0038] Figure 3 It is a three-dimensional structure schematic diagram of the hook tooling component of an embodiment of the present invention;

[0039] Figure 4This is a three-dimensional structural schematic diagram of the tooling switching mechanism according to an embodiment of the present invention;

[0040] Figure 5 This is a three-dimensional structural schematic diagram of the tooling positioning mechanism according to an embodiment of the present invention;

[0041] Figure 6 This is a three-dimensional structural schematic diagram of the tooling return mechanism according to an embodiment of the present invention. Detailed implementation manners

[0042] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0043] It should be noted that the terms used herein are only for describing specific implementation manners and are not intended to limit the exemplary implementation manners according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "include" and / or "comprise" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or their combinations.

[0044] It should be noted that the terms "first", "second", etc. in the description and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances so that the implementation manners of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those clearly listed steps or units, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0045] Now, the exemplary implementation manners according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary implementation manners can be implemented in many different forms and should not be construed as being limited only to the implementation manners set forth herein. It should be understood that these implementation manners are provided so that the disclosure of the present application is thorough and complete, and the concepts of these exemplary implementation manners are fully conveyed to those of ordinary skill in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and thus their descriptions will be omitted.

[0046] Please refer to Figures 1 to 2As shown in the figure: A new type of circulation mechanism, including a bottom plate 1, a circulation conveyor mechanism 2, a jig engaging component 3, a jig switching mechanism 4, a jig return mechanism 5, and a jig positioning mechanism 6. Among them, the bottom plate 1 mainly plays a supporting role, used to support components such as the circulation conveyor mechanism 2, the jig engaging component 3, the jig switching mechanism 4, the jig return mechanism 5, and the jig positioning mechanism 6. In this embodiment, the bottom plate 1 can be processed and made of metal materials such as aluminum alloy. There are several installation grooves 11 on the bottom plate 1, and the installation grooves are in a T shape. With such a design, when installing the circulation conveyor mechanism 2, the jig switching mechanism 4, and the jig return mechanism 5, just place them on the T-shaped installation groove 11 and screw on the fasteners, and the entire assembly or disassembly and maintenance process is extremely convenient. Among them, the circulation conveyor mechanism 2 is arranged on the bottom plate 1 and is used for circulating and transporting the jig fixtures; the jig engaging component 3 is arranged on the circulation conveyor mechanism 2 and is used to provide a power source; the jig switching mechanism 4 is symmetrically arranged at both ends of the circulation conveyor mechanism 2 and has a smooth transition. The jig engaging component 2 can drive the jig switching mechanism 4 to move, and is used to push and eject the jig fixtures on the circulation conveyor mechanism 2; the jig return mechanism 5 is arranged on the bottom plate 1 and is used to provide a power source for the movement of the return jig fixtures on the circulation conveyor mechanism 2; the jig positioning mechanism 6 is arranged on the circulation conveyor mechanism 2 and is used to position the jig fixtures on the circulation conveyor mechanism 2.

[0047] Among them, the working rotation directions of the symmetrically arranged jig switching mechanisms 4 are opposite. When the jig engaging component drives to the left, the jig fixtures on the right-end jig switching mechanism 4 are pushed into the circulation conveyor mechanism 2, and at the same time, the original jig fixtures on the circulation conveyor mechanism 2 are pushed into the left-end jig switching mechanism 4; when the jig engaging component drives to the right, the jig fixtures on the left-end jig switching mechanism 4 are pushed into the circulation conveyor mechanism 2, and at the same time, the original jig fixtures on the circulation conveyor mechanism 2 are pushed into the right-end jig switching mechanism 4, preparing for the next cycle.

[0048] In summary, firstly, the mechanism of the present invention uses a rotating method to switch, which improves the utilization rate of horizontal space compared with the general "口"-shaped circulation method, and also reduces the occupied area of the machine, saving a lot of costs; secondly, when performing the switching operation, the present invention only needs the tooling switching mechanism 4 to rotate in one direction, and only one cylinder is needed to complete the pushing out, which greatly reduces the switching steps and improves the switching efficiency, thereby improving the productivity, and the production efficiency is increased to more than 2000 PCS / hour; finally, the present invention adopts different steering of the motor in the tooling switching mechanism 4 to change the direction of the tooling cycle, reducing the structural changes and reducing the noise generation. The following will describe the circulation transmission mechanism 2, the hook tooling component 3, the tooling switching mechanism 4, the tooling reflux mechanism 5 and the tooling positioning mechanism 6 in detail.

[0049] Based on the above examples, please refer to Figure 2 , the circulating transmission mechanism 2 includes a first slide 21, a second slide 22 and a support block 23; wherein the support block 23 mainly plays a supporting role, and is used to support the first slide 21 and the second slide 22. The first slide 21 and the second slide 22 are arranged parallel to each other, and the tooling fixtures arranged on the first slide 21 and the second slide 22 are arranged at a 90° angle during operation. Specifically, a step 231 is provided corresponding to the support block 23, and a mounting groove (not marked in the figure) is provided on the step for installing the first slide 21 and the second slide 22. Such a mounting groove (not marked in the figure) can facilitate the positioning of the first slide 21 and the second slide 22, and improve the installation efficiency. In the present invention, the first slide 21 and the second slide 22 used to provide a movement guide for the movement of the tooling fixture can adopt one or more structures in the form of a linear slide rail, a dovetail groove guide rail, a half-plate chain, etc., which are not limited here.

[0050] Based on the above examples, please refer to Figure 3 , the hook tooling component 3 includes a bracket 31;

[0051] A first power source 32, disposed on the bracket 31, for providing power;

[0052] The moving element 33 is slidably disposed on the bracket 31, and the first power source 32 can drive the moving element 33 to move back and forth, and

[0053] The connecting rod element 34 is symmetrically arranged on the left and right sides of the moving element 33 and is used to guide the movement of the moving element 33 while driving the tooling switching mechanism 4 to push the tooling fixture in and out. Both ends of the connecting rod element 34 are provided with second rotating joints 341, one end of which is rotatably connected to the moving element 33, and the other end is used to connect the tooling switching mechanism 4.

[0054] Based on the above embodiments, please refer to Figure 3 , the first power source 32 is a cylinder, and the cylinder is fixed to the bracket 31 through a mounting plate 322. Specifically, position sensors 321 are provided corresponding to the initial position and the extended position of the telescopic rod of the cylinder for sensing the telescopic state of the cylinder. The rotating joint 323 is connected to the free end of the telescopic rod of the cylinder, and a threaded joint is provided on the rotating joint 323. The threaded joint is rotatably connected to a threaded hole in the second moving element 33. Of course, in other embodiments, the first driving source 32 can also be electric or various forms of cylinder bodies or push-type power devices.

[0055] Based on the above embodiments, please refer to Figure 3 , the bracket 31 is used to support the first power source 32, the moving element 33, and the connecting rod element 34. Buffer mounting blocks 311 are symmetrically provided on the bracket 31; the buffer mounting blocks 311 are in a concave shape; buffer devices 312 are fixedly installed on the buffer mounting blocks 311 for decelerating the moving element 33 to prevent impact and affect the service life of the equipment. In addition, a linear slide rail mounting groove is provided on the bracket 31 for installing a linear slide rail to achieve rapid positioning and installation of the linear slide rail.

[0056] Based on the above embodiments, please refer to Figure 4 , the tooling switching mechanism 4 includes a mounting base 41;

[0057] A second power source 42, arranged at the bottom of the mounting base 41, for providing power;

[0058] A circulating roller shaft component 43, rotatably arranged on the mounting base 41, for transporting the tooling fixture, and the second power source 42 can drive the circulating roller shaft component 43 to rotate; and

[0059] A push ring component 44, coaxially arranged with the circulating roller shaft component 43, and the connecting rod element 34 can drive the push ring component 44 to move back and forth reciprocally.

[0060] Symmetric side plates 412 are provided on the mounting base 41. Through holes are provided on the side plates 412 for placing bearings to reduce the frictional force generated by the rotation of the circulating roller shaft component 43 during operation. A second strip-shaped hole 411 is formed on the mounting base 41, and then fasteners are sequentially passed through the second strip-shaped hole 411 to mount the mounting base 41 on the bottom plate 1. The number of the second strip-shaped holes 411 can be multiple. When replacing similar workpieces, the overall structure can be used with almost no modification, especially when the circulating conveyor mechanism 2 is updated relatively quickly, the effect is more significant.

[0061] The second power source 42 is a servo motor, and the servo motor is fixed to the bottom plate 1 through a motor mounting plate 421. Specifically, an angle sensor 423 is provided at the output end corresponding to the servo motor for sensing the angle rotated by the servo motor. The output end of the servo motor is in transmission connection with the circulating roller shaft component 43 through a belt transmission device. Of course, in other embodiments, the second power source 42 can also be a pneumatic rotary cylinder or a hydraulic rotary cylinder or a gear-rack push-type power device. Specifically, the motor mounting plate 421 is provided with a third long strip-shaped hole 422 for adjusting the position of the servo motor to ensure that the belt transmission device is in a tensioned state and prevent slipping.

[0062] The circulating roller shaft component 43 is a hollow rotating body; a plurality of circulating guide rails 431 are arrayed on the circumferential side of the circulating roller shaft component 43 for storing tooling fixtures. A plurality of circulating guide rail mounting grooves (not marked in the figure) are arrayed on the circumferential side of the circulating roller shaft component 43. In this embodiment, both the circulating guide rails 431 and the circulating guide rail mounting grooves (not marked in the figure) are provided with 4. The circulating guide rails 431 are placed in the circulating guide rail mounting grooves (not marked in the figure), and the adjacent circulating guide rails 431 are installed at right angles to each other; the circulating guide rail 431 is provided with a first long strip-shaped slot hole 432 for providing a moving space for the push ring component 44 to move; the first long strip-shaped slot hole 432 penetrates through the hollow rotating body.

[0063] The push ring component 44 includes a push ring 441. A pull rod placement groove (not marked in the figure) is provided on one side of the push ring 441, and a pull rod 442 is fixedly provided in the pull rod placement groove (not marked in the figure); a driving rod 443 is connected to the middle position of the pull rod 442. One end of the driving rod 443 is provided with a threaded hole for screwing and connecting a connecting rod element 34. During use, the push ring component 44 is driven to reciprocate back and forth by the first power source 32.

[0064] Based on the above embodiments, please refer to Figure 5, the tooling return mechanism 5 includes: a return mechanism mounting frame 51, on which there are a first baffle 511 and a second baffle 512, and the adjacent first baffle 511 and second baffle 512 are connected by a synchronous pulley; a synchronous belt groove 513 is formed between the first baffle 511 and the second baffle 512. During use, the synchronous belt is located in the synchronous belt groove 513 and its height is lower than the upper surfaces of the first baffle 511 and the second baffle 512.

[0065] A third power source 52, which is arranged on the return mechanism mounting frame 51 and is used to provide a power source. The third power source 52 is a servo motor. Of course, in other embodiments, the third power source 52 can also be a pneumatic rotary cylinder or a hydraulic rotary cylinder or a gear-rack push-type power device.

[0066] A belt transmission mechanism 53, which is arranged on the return mechanism mounting frame 51. The third power source 52 can drive the belt transmission mechanism 53 to rotate and is used to provide frictional power input for the movement of the tooling fixture.

[0067] Based on the above embodiments, please refer to Figure 6 , the tooling positioning mechanism 6 includes a positioning bracket 61, on which there is a blind hole (not marked in the figure) for placing an elastic element 62; a U-shaped groove 611 is provided on the positioning bracket 61 for making way for the movement of the link element 34. Such a design can make the whole structure more delicate and further improve the space utilization rate;

[0068] An elastic element 62, which is arranged on the positioning bracket 61 and is used to provide driving elastic force. The elastic element 62 adopts a spring or elastic rubber;

[0069] A positioning rod element 63, which is slidably arranged on the positioning bracket 61; the elastic element 63 can drive the positioning rod element 63 to move up and down. One side of the positioning rod element 63 is connected to a limit block 631 through a fastener for limiting the positioning rod element 63; and

[0070] A guide wheel element 64, which is fixedly arranged at the top of the positioning rod element 63 and is used to cooperate with the groove on the tooling fixture for positioning.

[0071] The specific working process of a novel circulating mechanism of the present invention is as follows: At the beginning, the cylinder on the hook tooling component 3 extends, the left connecting rod in the moving element 33 moves leftward, pushing the push ring 441 of the left-end tooling switching mechanism 4 to move leftward, enabling the tooling fixture to smoothly enter the left-end tooling switching mechanism 4. When the cylinder extends, it drives the right connecting rod in the moving element 33 to move leftward, and then drives the push ring 441 of the right-end tooling switching mechanism 4 to extend, causing the tooling fixture to move leftward and enter the first slideway 21 of the circulating conveyor mechanism 2, and blocking the tooling fixture on the return guide rail from entering the right-end tooling switching mechanism 4; Subsequently, the servo motor rotates, and under the detection of the angle sensor 423, it precisely rotates 90°, enabling the tooling fixture to be accurately docked with the return guide rail; After that, the cylinder of the hook tooling component 3 retracts, the right connecting rod moves rightward, pushing the push ring 441 of the right-end tooling switching mechanism 4 to move rightward, enabling the tooling fixture to enter the right-end tooling switching mechanism 4. At the same time, it also drives the left connecting rod to move rightward, and the tooling fixture in the left-end tooling switching mechanism 4 is pushed out by the push ring 441 and enters the first slideway 21 (return guide rail) of the circulating conveyor mechanism 2. Under the action of the belt drive mechanism 53 in the return mechanism mounting frame 51, the tooling fixture at the right end of the return guide rail moves leftward and enters the right-end tooling switching mechanism 4. When the right-end tooling switching mechanism 4 rotates 90°, the tooling returns to the starting position, completing a cycle.

[0072] In summary: This mechanism of the present invention uses a rotating method for switching. Compared with the existing "square" - shaped circulating method, it improves the utilization rate of horizontal space, increases the production efficiency to more than 2000 PCS / hour, reduces the occupied area of the machine tool, and saves a large amount of costs; The present invention only needs to rotate unidirectionally, and only one cylinder is required to complete the extension during the extension process. Compared with the existing "square" - shaped circulating method (during switching, the switching mechanism needs to perform reciprocating motion, and on the other side of each switching, a cylinder is also required to push out the tooling, and these two cylinders cannot operate simultaneously and must have a certain sequence), it greatly reduces the switching steps, shortens the switching time, and improves the switching efficiency; By using different rotation directions of the servo motor, the present invention can change the direction of the tooling cycle, reducing the structural modification. Compared with the "square" - shaped circulating method, it has a simple and reasonable structure, safe and reliable operation, and high equipment compactness; The tooling positioning mechanism of the present invention uses the compression force of the spring for positioning, which further reduces the cost compared with the method of using the extension of the cylinder. Therefore, it has a broad market prospect and is suitable for popularization and use.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that after reading the specification of this application, they can still modify the specific implementation manners of the present invention or make equivalent replacements. However, these modifications or changes do not depart from the protection scope of the pending claims of the present invention application.

Claims

1. A cyclic mechanism, comprising a bottom plate (1), characterized in that, The loop mechanism further includes: a loop conveyor mechanism (2) disposed on the base plate (1), the loop conveyor mechanism having two slideways for loop transporting the tooling fixtures; a tooling engaging component (3) disposed on the loop conveyor mechanism (2) for providing a power source; and a tooling switching mechanism (4) symmetrically disposed at both ends of the loop conveyor mechanism (2) and connected to the slideways, the tooling engaging component (3) driving the tooling switching mechanism (4) to move; The tooling engaging component (3) includes a bracket (31), a first power source (32), a moving element (33), and a link element (34); The first power source (32) is disposed on the bracket (31) for providing power; The moving element (33) is slidably disposed on the bracket (31), and the first power source (32) drives the moving element (33) to reciprocate back and forth, The link elements (34) are symmetrically disposed on the left and right sides of the moving element (33) for guiding the movement of the moving element (33) and at the same time driving the tooling switching mechanism (4) to work; The tooling switching mechanism (4) includes a mounting base (41), a second power source (42), a loop roller component (43), and a push ring component (44); The second power source (42) is disposed at the bottom of the mounting base (41) for providing power; The loop roller component (43) is rotatably disposed on the mounting base (41) for transporting the tooling fixtures, and the second power source (42) drives the loop roller component (43) to rotate; The push ring component (44) is coaxially disposed with the loop roller component (43), and the link element (34) drives the push ring component (44) to reciprocate back and forth; The push ring component (44) includes a push ring (441), and a pull rod (442) is provided on the push ring (441); a driving rod (443) is connected to the middle position of the pull rod (442), and a threaded hole is provided at one end of the driving rod (443) for screwing the link element (34); Wherein, the tooling switching mechanism (4) receives the tooling fixtures on one slideway, rotates the tooling fixtures by 90°, and then re-transports the tooling fixtures to the other slideway; the action directions of the two slideways are opposite.

2. The circulating mechanism according to claim 1, wherein, The loop mechanism further includes: a tooling positioning mechanism (6) disposed on the loop conveyor mechanism (2) for positioning the tooling fixtures on the loop conveyor mechanism (2); and a tooling return mechanism (5) disposed on the base plate (1) for providing a power source for the movement of the return tooling fixtures on the loop conveyor mechanism (2).

3. The circulating mechanism according to claim 1, characterized in that, The loop conveyor mechanism (2) includes a first slideway (21), a second slideway (22), and a support block (23); the first slideway (21) and the second slideway (22) are arranged perpendicular to each other; the first slideway (21) and the second slideway (22) are both mounted on the support block (23).

4. A circulation mechanism according to claim 1, characterized in that, The first power source (32) is a cylinder, which is fixed to the bracket (31) through a mounting plate, and position sensors (321) are provided corresponding to the initial position and the extended position of the telescopic rod of the cylinder.

5. A cyclic mechanism according to claim 1, characterized in that, The circulating roller shaft component (43) is a hollow rotating body; a plurality of circulating guide rails (431) are arranged in an array on the circumferential side of the circulating roller shaft component (43), and adjacent circulating guide rails (431) are arranged at right angles; the circulating guide rail (431) is provided with a first long strip-shaped slot hole (432); the first long strip-shaped slot hole (432) penetrates through the hollow rotating body.

6. A circulation mechanism according to claim 2, characterized in that, The tooling return mechanism (5) includes: a return mechanism mounting frame (51); a third power source (52), which is arranged on the return mechanism mounting frame (51) and is used to provide a power source; and a belt transmission mechanism (53), which is arranged on the return mechanism mounting frame (51), and the third power source (52) drives the belt transmission mechanism (53) to rotate, and is used to provide frictional power input for the movement of the tooling fixture.

7. A circulating mechanism according to claim 2, characterized in that, The tooling positioning mechanism (6) includes a positioning bracket (61); an elastic element (62), which is arranged on the positioning bracket (61) and is used to provide driving elastic force; a positioning rod element (63), which is slidably arranged on the positioning bracket (61); the elastic element (62) drives the positioning rod element (63) to move up and down; and a guide wheel element (64), which is fixedly arranged at the top end of the positioning rod element (63) and is used to cooperate with the groove on the tooling fixture for positioning.

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