Automatic crimping and bending mechanism

Abstract

The utility model provides an automatic crimping and bending mechanism, and belongs to the technical field of electric cooker production. The automatic crimping and bending mechanism comprises a support and a pressing driving device, a bearing part is arranged in the support, a placing position used for placing a workpiece to be pressed is arranged in the bearing part, and a pin to be pressed is arranged on the workpiece to be pressed. The pressing driving device is fixed on the bracket and is positioned above the bearing piece; the output end of the press-fit driving device is provided with a second press-fit structure, a first press-fit structure is arranged below the second press-fit structure, and the press-fit driving device drives the second press-fit structure and the first press-fit structure to move, so that the first press-fit structure performs primary press-fit on the pins, and the second press-fit structure performs secondary press-fit on the pins. According to the structure, the pins of the to-be-pressed product can be automatically pressed, the production efficiency can be improved, and the quality of the product is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric rice cooker production technical field especially, relates to a kind of automatic crimping bending mechanism. BACKGROUND

[0002] In the production process of electric rice cooker, the assembly of upper cover assembly is a key link. The upper cover assembly of a kind of existing electric rice cooker includes aluminum alloy decorative piece and plastic piece, and in the production process, the two need to be fixed to each other. In actual production, workers need to manually take plastic piece and aluminum alloy decorative piece first, and manually align the two. After completion of alignment, the combined material needs to be placed flat on the desktop, at which time the aluminum alloy pin is inserted through the plastic material upwards. Then, the worker needs to hold the metal bar, and pre-bend the eight aluminum alloy pins one by one, and then use the metal bar again to bend and press the pins on the plastic piece. In this process, the bending and pressing action needs to be repeated 8 times for each pin, and the operation is extremely tedious. This manual operation method consumes a lot of manpower and has extremely low production efficiency. Moreover, the uniformity of manual pressing is difficult to control. During the operation process, after the material is manually pre-bent and pressed, it is often not uniform due to uneven force, resulting in individual aluminum alloy pins being pressed tightly, leaving gaps. In order to ensure product quality, manual rework is required to press these unqualified products again, which undoubtedly increases production cost and further reduces production efficiency.

[0003] Therefore, it is urgent to improve the combination method of the aluminum alloy piece and the plastic piece of the existing upper cover assembly to overcome the defects of the prior art. SUMMARY

[0004] To overcome the problems in the related art, the purpose of the present utility model is to provide an automatic crimping and bending mechanism, which can automatically press the pins of the product to be pressed, thereby improving production efficiency and ensuring product quality.

[0005] An automatic crimping and bending mechanism, comprising:

[0006] A support is provided with a carrier, and the carrier is provided with a placement position for placing a workpiece to be pressed. The workpiece to be pressed is provided with pins to be pressed.

[0007] A pressing drive device is fixed to the support above the carrier. The output end of the pressing drive device is provided with a second pressing structure, and the lower side of the second pressing structure is provided with a first pressing structure. The pressing drive device drives the second pressing structure and the first pressing structure to move, so that the first pressing structure presses the pins once, and the second pressing structure presses the pins twice.

[0008] The device, in use, starts the pressing driving device, and the driving device output end drives the second pressing structure and the first pressing structure below to move downward synchronously. When the first pressing structure contacts the pin, the pin is pressed once with a set pressure and speed. In the process of the first pressing, the first pressing structure acts on each pin uniformly, so that the pin is preliminarily bent to a certain angle; after the first pressing is completed, the second pressing structure continues to descend. Since the pressing head of the second pressing structure is provided with a bending part with a specific angle, in the descending process, the bending part gradually contacts and acts on the pin preliminarily bent, and the pin is pressed twice. In the second pressing, the bending part further bends the pin and presses the pin on the workpiece to be pressed, so that the pin is tightly attached to the workpiece, and the pressing standard of the product design is reached.

[0009] The automatic pressing and bending mechanism can ensure that each pin is accurately and uniformly pressed each time by precisely controlling the pressure, speed and movement track of the first pressing structure and the second pressing structure. After the automatic pressing and bending mechanism is adopted, the operator only needs to perform feeding and discharging operations, and does not need to perform complicated pressing actions, so that the labor intensity is greatly reduced.

[0010] In the preferable technical scheme of the utility model, the first pressing structure comprises a pressing support plate, first guide grooves and second guide grooves are arranged on the pressing support plate, a first pressing tongue slidable in the first guide groove is arranged in the first guide groove, and a second pressing tongue slidable in the second guide groove is arranged in the second guide groove.

[0011] When the pressing driving device drives the second pressing structure and the first pressing structure to move, the second pressing structure can extrude the first pressing structure, so that the first pressing tongue moves in a first direction and the second pressing tongue moves in a second direction, the first direction is from the center of the pressing support plate to the edge, and the second direction is opposite to the first direction.

[0012] Specifically, the first pressing tongue moves outward from the pressing support plate under the extrusion of the second pressing structure, and the second pressing tongue moves inward from the pressing support plate under the extrusion of the second pressing structure, so that the pin is pressed.

[0013] The first pressing tongue and the second pressing tongue move accurately in the set direction under the constraint of the guide groove, and act on the pin from two opposite directions. In this way, it can be ensured that each pin is uniformly pressed, and the bending angle and pressing force of the pin are highly consistent.

[0014] In the preferable technical scheme of the utility model, 3-8 first guide grooves are arranged on the pressing support plate, and one first pressing tongue is arranged in each first guide groove, and a first reset spring is connected between the first pressing tongue and the first guide groove.

[0015] Specifically, in the embodiment, the second pressing structure is driven by the output end of the pressing driving device to move downward. When the second pressing structure contacts the first pressing tongue of the first pressing structure, the first pressing tongue is pressed. Due to the design of the first guide groove and the first pressing tongue, and the initial state of the first reset spring, under the action of the pressure, the five first pressing tongues simultaneously slide along the respective first guide grooves to the edge direction of the pressing support plate. In the sliding process, the first pressing tongue exerts pressure on the pin of the product to be pressed to bend the pin, thereby realizing the pressing operation on the pin.

[0016] In the embodiment, the pin is pressed by the plurality of first pressing tongues simultaneously to complete a pressing operation, which can effectively improve the production efficiency, meet the demand of large-scale production, and speed up the production progress.

[0017] In the preferable embodiment, the number of the second guide grooves is the same as that of the first guide grooves, and the second guide grooves are arranged on one side of the first guide grooves to simultaneously bend the pins.

[0018] In the preferable technical scheme of the utility model, the second pressing structure comprises oppositely arranged lower pressing plates and upper pressing plates, the upper pressing plate is provided with a connecting bolt, the connecting bolt is fixedly connected with the output end of the pressing driving device, and the lower pressing plate is arranged on one side of the pressing support plate.

[0019] A first elastic member is arranged between the lower pressing plate and the upper pressing plate, a second elastic member is arranged on the top of the pressing support plate, and the elastic coefficient of the first elastic member is greater than that of the second elastic member.

[0020] A movable first jack and a second jack are arranged on the lower pressing plate, and the bottom of the first jack and the bottom of the second jack are both penetrated through the lower pressing plate and exposed outside the lower pressing plate.

[0021] A first abutting surface is arranged on the first pressing tongue, and a second abutting surface is arranged on the second pressing tongue; the bottom of the first jack is provided with a third abutting surface, and the bottom of the second jack is provided with a fourth abutting surface; when the second pressing structure extrudes the first pressing structure, the third abutting surface is in contact with the first abutting surface, so that the first pressing tongue moves in the first direction; and the fourth abutting surface is in contact with the second abutting surface, so that the second pressing tongue moves in the second direction.

[0022] In this embodiment, as the second pressing structure descends, the lower pressure plate gradually approaches the pressing support plate of the first pressing structure. When the third abutment surface at the bottom of the first push rod contacts the first abutment surface on the first pressing tongue, and the fourth abutment surface at the bottom of the second push rod contacts the second abutment surface on the second pressing tongue, because the elastic coefficient of the first elastic element is greater than that of the second elastic element, the lower pressure plate, under the action of the first elastic element, will first squeeze the first pressing tongue and the second pressing tongue.

[0023] Under pressure, the first pressure tongue slides along the first direction (from the center to the edge of the pressure support plate), and the second pressure tongue slides along the second direction (opposite to the first direction). The two gradually approach and press against the pins on the main board, achieving the first pressing of the pins. As the electric push rod continues to press down, the second elastic element is further compressed, and the second pressing structure applies greater pressure to the pins, completing the second pressing and ensuring a tight connection between the pins and the pressed product.

[0024] In a preferred embodiment of this utility model, a lower guide bearing is provided on the lower pressure plate, an upper guide bearing is provided on the upper pressure plate, the lower guide bearing and the upper guide bearing are coaxially arranged, and a guide post is provided on the clamping support plate, one end of the guide post passing through the lower guide bearing and the upper guide bearing.

[0025] Due to the guiding effect of the guide post and guide bearing, the first and second pressure tongues can slide stably along the predetermined first and second directions when compressed, achieving precise pressing of the pins. During the pressing process, according to the pin material and pressing process requirements, the pressure and stroke of the electric cylinder are precisely adjusted by the control system to ensure that the pins are pressed evenly and firmly onto the motherboard.

[0026] In a preferred embodiment of this invention, a second elastic element is provided around the guide post, and the second elastic element coincides with the axis of the guide post.

[0027] When the pressing drive device drives the second pressing structure to rise and reset, the second elastic element provides additional elastic force, helping the first and second pressing structures return to their initial positions more quickly and stably.

[0028] During the pressing and lifting process of the second pressing structure, a certain amount of impact force and vibration will be generated. The second elastic element can buffer these forces and reduce the impact on the overall structure of the equipment.

[0029] In a preferred embodiment of this invention, a first limiting bolt is provided on the top of the clamping support plate, the axis of the first limiting bolt is perpendicular to the upper surface of the clamping support plate, and the first limiting bolt is threadedly connected to the clamping support plate.

[0030] The first limiting bolt is used for limiting the distance between the second pressing structure and the pressing support plate, preventing the second pressing structure from excessively pressing down to cause the excessive movement of the pressing fold tongue, thereby causing the damage of the product.

[0031] In the preferable technical scheme of the utility model, the upper pressing plate is provided with a second limiting bolt, and the bottom of the second limiting bolt penetrates the upper pressing plate and is arranged towards the lower pressing plate.

[0032] The second limiting bolt is used for limiting the distance between the upper pressing plate and the lower pressing plate, avoiding the excessive pressing down of the upper pressing plate to cause the excessive pressing down of the lower pressing plate, so that the lower pressing plate damages the workpiece.

[0033] In the preferable technical scheme of the utility model, the second reset spring is arranged between the first top rod, the second top rod and the upper pressing plate, and is used for resetting the top rod in the movement process of the top rod, so as to perform the next operation.

[0034] In the preferable technical scheme of the utility model, the bearing part is detachably arranged in the support, and the placing position is provided with a fool-proof positioning part.

[0035] The to-be-pressed workpiece is provided with a positioning groove matched with the fool-proof positioning part.

[0036] The fool-proof positioning part is matched with the positioning groove, and can ensure that the to-be-pressed workpiece is placed in the only correct position of the placing position of the bearing part each time. When the upper cover assembly of the electric rice cooker is produced, if the positioning groove of the upper cover assembly is accurately matched with the fool-proof positioning part of the bearing part, the pin of the upper cover assembly can be accurately aligned with the first pressing structure and the second pressing structure, the deviation of the pin pressing position caused by the incorrect placement of the workpiece is avoided, the stability of the pressing quality is ensured, and the unqualified rate of the product is effectively reduced.

[0037] The utility model has the advantages of:

[0038] The utility model provides an automatic pressure joint bending mechanism, the automatic pressure joint bending mechanism includes support and pressure combined drive arrangement, is provided with the bearing in the support, is provided with the placement position for placing the work piece of pressure combined in the bearing, is provided with the pin of pressure combined of waiting on the work piece of pressure combined. Pressure combined drive arrangement is fixed on the support and is located the top of bearing, the output of pressure combined drive arrangement is provided with second pressure combined structure, the below of second pressure combined structure is provided with first pressure combined structure, and pressure combined drive arrangement drives second pressure combined structure and first pressure combined structure moves, so that first pressure combined structure carries out once pressure combined to pin and makes second pressure combined structure carry out twice pressure combined to pin. In the use, the output of pressure combined drive arrangement is connected with second pressure combined structure. The first pressure combined structure below second pressure combined structure moves down along with drive arrangement output. First pressure combined structure contacts pin and carries out once pressure combined to pin with certain pressure and speed, makes pin preliminary bending. With second pressure combined structure continues to drop, its twice pressure combined to pin, and the pressure head of second pressure combined structure has the bending part of specific angle, can further bend the pin of pressure combined and press tightly on the work piece of pressure combined, completes whole pressure combined process. The device can effectively improve the efficiency of pin pressure combined through the automatic completion of pin pressure combined of first pressure combined structure and second pressure combined structure of pressure combined drive arrangement, and can ensure that each pin is accurately and uniformly pressure combined every time, makes pin and work piece of pressure combined closely, greatly reduces the unqualified rate of product. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 It is the perspective view of the automatic pressure joint bending mechanism provided in the embodiment of the utility model;

[0040] Figure 2 It is the front view of the automatic pressure joint bending mechanism provided in the embodiment of the utility model;

[0041] Figure 3 It is the perspective view of the first pressure combined structure provided in the embodiment of the utility model;

[0042] Figure 4 It is the front view of the first pressure combined structure in Figure 3 ;

[0043] Figure 5 It is the plan view of the first pressure combined structure in Figure 3 ;

[0044] Figure 6 It is the perspective view of the second pressure combined structure provided in the embodiment of the utility model;

[0045] Figure 7 It is the front view of the second pressure combined structure in Figure 6 ;

[0046] Figure 8is a first schematic view of a lower pressing plate provided in the embodiment of the utility model;

[0047] Figure 9 is a second schematic view of a lower pressing plate provided in the embodiment of the utility model;

[0048] Figure 10 is a perspective view of a bearing provided in the embodiment of the utility model;

[0049] Figure 11 is a top view of a bearing provided in the embodiment of the utility model;

[0050] Figure 12 is a top view of a workpiece to be pressed provided in the embodiment of the utility model.

[0051] Mark explanation:

[0052] 1, support;2, pressing driving device;3, bearing;4, first pressing structure;41, first guide groove;42, second guide groove;43, first pressing tongue;431, first abutting surface;44, second pressing tongue;441, second abutting surface;45, first limit bolt;46, second elastic piece;47, guide column;48, pressing support plate;5, second pressing structure;51, lower pressing plate;511, lower guide bearing;512, first jacking rod;5121, third abutting surface;513, second jacking rod;5131, fourth abutting surface;514, second reset spring;52, upper pressing plate;521, upper guide bearing;522, connecting bolt;523, second limit bolt;53, first elastic piece;6, workpiece to be pressed;61, pin;62, positioning groove. Specific implementation

[0053] The preferred embodiments of the utility model will be described in more detail below with reference to the drawings. Although the preferred embodiments of the utility model are shown in the drawings, it should be understood that the utility model can be implemented in various forms and should not be limited by the embodiments described here. On the contrary, these embodiments are provided to make the utility model more thorough and complete, and to fully convey the scope of the utility model to those skilled in the art.

[0054] In the production of rice cookers, the assembly of the lid assembly is a crucial step. One existing rice cooker lid assembly consists of an aluminum alloy decorative part and a plastic part, which need to be fixed together during production. In actual production, workers first manually pick up the plastic part and the aluminum alloy decorative part and manually align them. After alignment, the assembly is laid flat on a table, with the aluminum alloy leads passing through the plastic material and facing upwards. Next, workers use a metal rod to pre-bend each of the eight aluminum alloy leads, then use the metal rod again to bend the leads and press them firmly onto the plastic part. This bending and pressing process needs to be repeated eight times for each lead, making the operation extremely tedious. This manual operation method consumes a great deal of manpower and has extremely low production efficiency. Moreover, it is difficult to control the uniformity of manual pressing. During the operation, after the material is manually pre-bent and pressed, uneven force often results in some aluminum alloy leads not being pressed firmly, creating gaps. To ensure product quality, manual labor is required to rework and re-press these substandard products, which undoubtedly increases production costs and further reduces production efficiency.

[0055] Based on this, this application provides an automatic crimping and bending mechanism.

[0056] Example 1

[0057] like Figures 1-12 As shown, the automatic pressing and bending mechanism provided in this embodiment includes a bracket 1, in which a bearing member 3 is provided, and in which a placement position for placing the workpiece 6 to be pressed is provided, and the workpiece 6 to be pressed has pins 61 to be pressed; the bracket 1 serves as the main body of the entire device and is used to support the pressing drive device 2 and other mechanisms.

[0058] A pressing drive device 2 is fixed on the bracket 1 and located above the carrier 3. The output end of the pressing drive device 2 is provided with a second pressing structure 5, and a first pressing structure 4 is provided below the second pressing structure 5. The pressing drive device 2 drives the second pressing structure 5 and the first pressing structure 4 to move, so that the first pressing structure 4 presses the pin 61 once, and the second pressing structure 5 presses the pin 61 a second time.

[0059] Specifically, the pressing drive device 2 of this application can be an electric push rod or a cylinder. The linear motion of the output end of the electric push rod or the cylinder drives the linear motion of the second pressing structure 5 and the first pressing structure 4, so that the second pressing structure 5 and the first pressing structure 4 move closer to or further away from the workpiece 6 to be pressed, thereby realizing the pressing of the pins 61 on the workpiece 6 to be pressed.

[0060] In the aforementioned automatic crimping and bending mechanism, the output end of the crimping drive device 2 is connected to the second crimping structure 5. The first crimping structure 4 below the second crimping structure 5 moves downwards along with the output end of the drive device. After the first crimping structure 4 contacts the pin 61, it performs a first crimp on the pin 61 with a certain pressure and speed, causing the pin 61 to be initially bent. As the second crimping structure 5 continues to descend, it performs a second crimp on the pin 61. The pressure head of the second crimping structure 5 has a bending section with a specific angle, which can further bend the pin 61 to be crimped and press it firmly onto the workpiece 6 to be crimped, completing the entire crimping process. This device automatically completes the crimping of the pin 61 by driving the first crimping structure 4 and the second crimping structure 5 through the crimping drive device 2. Multiple pins 61 can be crimped in one operation, greatly saving time compared to manual operation. Furthermore, each crimp ensures that each pin 61 is accurately and uniformly crimped, making the pin 61 tightly adhere to the workpiece 6 to be crimped, greatly reducing the product defect rate. In this embodiment, the first pressing structure 4 includes a pressing support plate 48, on which a first guide groove 41 and a second guide groove 42 are provided. A slidable first pressing tongue 43 is provided in the first guide groove 41, and a slidable second pressing tongue 44 is provided in the second guide groove 42.

[0061] When the pressing drive device 2 drives the second pressing structure 5 and the first pressing structure 4 to move, the second pressing structure 5 can squeeze the first pressing structure 4, thereby causing the first pressing tongue 43 to move along the first direction and the second pressing tongue 44 to move along the second direction. The first direction is the direction from the center to the edge of the pressing support plate 48, and the second direction is opposite to the first direction.

[0062] Specifically, the device can be used in the assembly process of the top cover assembly of a rice cooker to automatically press the pins of the top cover assembly, thereby improving production efficiency.

[0063] Example 2

[0064] This embodiment is an improvement on embodiment 1.

[0065] like Figures 1-12 As shown, in this embodiment, the first pressing structure 4 includes a pressing support plate 48, on which a first guide groove 41 and a second guide groove 42 are provided. A slidable first pressing tongue 43 is provided in the first guide groove 41, and a slidable second pressing tongue 44 is provided in the second guide groove 42.

[0066] When the pressing drive device 2 drives the second pressing structure 5 and the first pressing structure 4 to move, the second pressing structure 5 can squeeze the first pressing structure 4, thereby causing the first pressing tongue 43 to move along the first direction and the second pressing tongue 44 to move along the second direction. The first direction is the direction from the center to the edge of the pressing support plate 48, and the second direction is opposite to the first direction.

[0067] Specifically, the first pressing tongue 43 moves outward from the pressing support plate 48 under the pressure of the second pressing structure 5, while the second pressing tongue 44 moves inward from the pressing support plate 48 under the pressure of the second pressing structure 5, thereby achieving the pressing of the pin 61.

[0068] Under the constraint of the guide groove, the first and second pressing tongues 43 and 44 move precisely in the set direction, acting on the pins 61 simultaneously from two opposite directions. In this way, it can be ensured that each pin 61 is pressed evenly, and the bending angle and pressing force of the pins 61 are highly consistent.

[0069] More preferably, in this embodiment, 3-8 first guide grooves 41 are provided on the pressing support plate 48, and each first guide groove 41 is provided with a first pressing tongue 43, and a first reset spring is connected between the first pressing tongue 43 and the first guide groove 41.

[0070] Specifically, in this embodiment, the output end of the pressing drive device 2 drives the second pressing structure 5 to move downward. When the second pressing structure 5 contacts the first pressing tongue 43 of the first pressing structure 4, pressure is applied to the first pressing tongue 43. Due to the design of the first guide groove 41 and the first pressing tongue 43, as well as the initial state of the first return spring, under the action of pressure, the five first pressing tongues 43 simultaneously slide along their respective first guide grooves 41 toward the edge of the pressing support plate 48. During the sliding process, the first pressing tongues 43 apply pressure to the pins 61 of the product to be pressed, bending the pins 61 to achieve the pressing operation of the pins 61.

[0071] In this embodiment, a pressing operation is completed by pressing the pin 61 simultaneously with multiple first pressing tongues 43, which can effectively improve production efficiency, meet the needs of large-scale production, and speed up the production process.

[0072] In a preferred embodiment of this invention, the number of second guide grooves 42 is the same as the number of first guide grooves 41, and the second guide grooves 42 are disposed on one side of the first guide grooves 41 so as to bend the pins 61 simultaneously.

[0073] Example 3

[0074] This embodiment is an improvement on embodiment 2.

[0075] like Figures 1-12 As shown, in this embodiment, the second pressing structure 5 includes a lower pressing plate 51 and an upper pressing plate 52 arranged opposite to each other. The upper pressing plate 52 is provided with a connecting bolt 522, which is fixedly connected to the output end of the pressing drive device 2. The lower pressing plate 51 is disposed on one side of the pressing support plate 48.

[0076] A first elastic element 53 is provided between the lower pressure plate 51 and the upper pressure plate 52, and a second elastic element 46 is provided on the top of the pressing support plate 48. The elastic coefficient of the first elastic element 53 is greater than that of the second elastic element 46.

[0077] The lower pressure plate 51 is provided with a movable first push rod 512 and a second push rod 513. The bottom of the first push rod 512 and the second push rod 513 both penetrate the lower pressure plate 51 and are exposed outside the lower pressure plate 51.

[0078] The first pressing tongue 43 is provided with a first abutting surface 431, and the second pressing tongue 44 is provided with a second abutting surface 441; the bottom of the first push rod 512 is provided with a third abutting surface 5121, and the bottom of the second push rod 513 is provided with a fourth abutting surface 5131; when the second pressing structure 5 presses the first pressing structure 4, the third abutting surface 5121 contacts the first abutting surface 431, thereby causing the first pressing tongue 43 to move in a first direction; the fourth abutting surface 5131 contacts the second abutting surface 441, thereby causing the second pressing tongue 44 to move in a second direction. Specifically, the lower pressure plate 51 is provided with a mounting groove for mounting the push rod. Both the first push rod 512 and the second push rod 513 can be slidably mounted in the mounting groove, and the upper part of the push rod is located close to the upper pressure plate 52. When the upper pressure plate 52 is pressed down, the first push rod 512 and the second push rod 513 can be pressed together by the pressure block on the upper pressure plate 52, thereby causing the first push rod 512 to move along the first direction, and thus causing the second push rod 513 to move along the second direction.

[0079] In this embodiment, as the second pressing structure 5 descends, the lower pressure plate 51 gradually approaches the pressing support plate 48 of the first pressing structure 4. When the third abutment surface 5121 at the bottom of the first push rod 512 contacts the first abutment surface 431 on the first pressing tongue 43, and the fourth abutment surface 5131 at the bottom of the second push rod 513 contacts the second abutment surface 441 on the second pressing tongue 44, since the elastic coefficient of the first elastic element 53 is greater than that of the second elastic element 46, the lower pressure plate 51, under the action of the first elastic element 53, will first squeeze the first pressing tongue 43 and the second pressing tongue 44. Under pressure, the first pressing tongue 43 slides along the first direction (from the center to the edge of the pressing support plate 48), and the second pressing tongue 44 slides along the second direction (opposite to the first direction). The two gradually approach and press the pin 61 on the main board, realizing one pressing of the pin 61. As the electric push rod continues to press down, the second elastic element 46 is further compressed, and the second pressing structure 5 applies greater pressure to the pin 61, completing the secondary pressing and ensuring that the pin 61 is tightly connected to the pressed product.

[0080] Example 4

[0081] This embodiment is an improvement on embodiment 2.

[0082] like Figures 1-12 As shown, in this embodiment, a lower guide bearing 511 is provided on the lower pressure plate 51, and an upper guide bearing 521 is provided on the upper pressure plate 52. The lower guide bearing 511 and the upper guide bearing 521 are coaxially arranged. A guide post 47 is provided on the pressing support plate 48, and one end of the guide post 47 passes through the lower guide bearing 511 and the upper guide bearing 521.

[0083] Due to the guiding effect of the guide post 47 and the guide bearing, the first pressing tongue 43 and the second pressing tongue 44 can slide stably along the predetermined first and second directions when pressed, achieving precise pressing of the pin 61. During the pressing process, according to the material of the pin 61 and the pressing process requirements, the pressure and stroke of the electric cylinder are precisely adjusted by the control system to ensure that the pin 61 is pressed evenly and firmly onto the motherboard.

[0084] In practical applications, multiple guide posts 47 can be installed, and multiple upper guide bearings 521 and lower guide bearings 511 can be matched with the guide posts 47. Through the cooperation of the guide bearings, the lower pressure plate 51 and the upper pressure plate 52 can be effectively guided, thereby ensuring that the mutual movement between the two can be effectively and smoothly.

[0085] Example 5

[0086] This embodiment is an improvement on embodiment 2.

[0087] likeFigures 1-12 As shown, in this embodiment, a second elastic element 46 is provided around the guide post 47, and the second elastic element 46 coincides with the axis of the guide post 47.

[0088] When the pressing drive device 2 drives the second pressing structure 5 to rise and reset, the second elastic element 46 provides additional elastic force to help the first pressing structure 4 and the second pressing structure 5 return to their initial positions more quickly and stably.

[0089] During the pressing and lifting process of the second pressing structure 5, a certain amount of impact force and vibration will be generated. The second elastic element 46 can buffer these forces and reduce the impact on the overall structure of the equipment.

[0090] Furthermore, in this embodiment, a second return spring 514 is provided between the first push rod 512, the second push rod 513, and the upper pressure plate 52. The second return spring 514 is used to reset the push rod during its movement so as to perform the next operation. Specifically, the second return spring 514 is provided in the mounting groove corresponding to the push rod, and the end of the spring can be fixed to the side wall of the mounting groove.

[0091] Example 6

[0092] This embodiment is an improvement on embodiment 5.

[0093] like Figures 1-12 As shown, in this embodiment, a first limiting bolt 45 is provided on the top of the pressing support plate 48. The axis of the first limiting bolt 45 is perpendicular to the upper surface of the pressing support plate 48, and the first limiting bolt 45 is threadedly connected to the pressing support plate 48.

[0094] The first limiting bolt 45 is used to limit the distance between the second pressing structure 5 and the pressing support plate 48, so as to prevent the second pressing structure 5 from being pressed down too much and causing the upper pressing tongue to move excessively, thereby causing product damage.

[0095] Furthermore, in this embodiment, a second limiting bolt 523 is provided on the upper pressure plate 52, and the bottom of the second limiting bolt 523 passes through the upper pressure plate 52 and is disposed towards the lower pressure plate 51.

[0096] The second limiting bolt 523 is used to limit the distance between the upper pressure plate 52 and the lower pressure plate 51, so as to prevent the upper pressure plate 52 from pressing down too much, causing the lower pressure plate 51 to also press down too much, which would damage the workpiece.

[0097] In this embodiment, the carrier 3 is detachably disposed in the bracket 1, and a foolproof positioning component is provided in the placement position;

[0098] The workpiece 6 to be pressed is provided with a positioning groove that matches the anti-foolproof positioning component. 62

[0099] The foolproof positioning component matches the positioning groove, ensuring that the workpiece 6 to be pressed is always placed in the correct position on the carrier 3. During the production of the rice cooker's top cover assembly, if the positioning groove of the top cover assembly accurately matches the foolproof positioning component of the carrier 3, the pins 61 of the top cover assembly can be precisely aligned with the first pressing structure 4 and the second pressing structure 5. This avoids deviations in the pressing position of the pins 61 due to incorrect workpiece placement, ensuring the stability of the pressing quality and effectively reducing the product defect rate.

[0100] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings. In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0101] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0102] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application. The above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. For those skilled in the art, this utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An automatic pressing and bending mechanism, characterized in that, include: A support frame is provided with a support member, and the support member is provided with a placement position for placing the workpiece to be pressed, and the workpiece to be pressed has pins to be pressed. A pressing drive device is fixed on the bracket and located above the carrier; the output end of the pressing drive device is provided with a second pressing structure, and a first pressing structure is provided below the second pressing structure; the pressing drive device drives the second pressing structure and the first pressing structure to move, so that the first pressing structure presses the pin once and the second pressing structure presses the pin a second time.

2. The automatic pressing and bending mechanism according to claim 1, characterized in that: The first pressing structure includes a pressing support plate, on which a first guide groove and a second guide groove are provided. A slidable first pressing tongue is provided in the first guide groove, and a slidable second pressing tongue is provided in the second guide groove. When the pressing drive device drives the second pressing structure and the first pressing structure to move, the second pressing structure can squeeze the first pressing structure, thereby causing the first pressing tongue to move along the first direction and the second pressing tongue to move along the second direction. The first direction is the direction from the center to the edge of the pressing support plate, and the second direction is opposite to the first direction.

3. The automatic pressing and bending mechanism according to claim 2, characterized in that: The first guide groove is provided with 3-8 of them on the pressing support plate. Each first guide groove is provided with a first pressing tongue. A first return spring is connected between the first pressing tongue and the first guide groove.

4. The automatic pressing and bending mechanism according to claim 2, characterized in that: The second pressing structure includes a lower pressing plate and an upper pressing plate arranged opposite to each other. The upper pressing plate is provided with a connecting bolt, which is fixedly connected to the output end of the pressing drive device. The lower pressing plate is located on one side of the pressing support plate. A first elastic element is provided between the lower pressure plate and the upper pressure plate, and a second elastic element is provided on the top of the clamping support plate. The elastic coefficient of the first elastic element is greater than that of the second elastic element. The lower pressure plate is provided with a movable first push rod and a second push rod, the bottom of which both penetrate the lower pressure plate and protrude outside the lower pressure plate; The first pressing tongue is provided with a first abutting surface, and the second pressing tongue is provided with a second abutting surface; the bottom of the first push rod is provided with a third abutting surface, and the bottom of the second push rod is provided with a fourth abutting surface; when the second pressing structure presses the first pressing structure, the third abutting surface contacts the first abutting surface, thereby causing the first pressing tongue to move in a first direction; the fourth abutting surface contacts the second abutting surface, thereby causing the second pressing tongue to move in a second direction.

5. The automatic pressing and bending mechanism according to claim 4, characterized in that: The lower pressure plate is provided with a lower guide bearing, the upper pressure plate is provided with an upper guide bearing, the lower guide bearing and the upper guide bearing are coaxially arranged, and the clamping support plate is provided with a guide post, one end of the guide post passing through the lower guide bearing and the upper guide bearing.

6. The automatic pressing and bending mechanism according to claim 5, characterized in that: A second elastic element is provided around the guide post, and the second elastic element coincides with the axis of the guide post.

7. The automatic pressing and bending mechanism according to claim 5, characterized in that: The top of the clamping support plate is provided with a first limiting bolt, the axis of the first limiting bolt is perpendicular to the upper surface of the clamping support plate, and the first limiting bolt is threadedly connected to the clamping support plate.

8. The automatic pressing and bending mechanism according to claim 4, characterized in that: The upper pressure plate is provided with a second limiting bolt, the bottom of which penetrates the upper pressure plate and faces the lower pressure plate.

9. The automatic pressing and bending mechanism according to claim 4, characterized in that: A second return spring is provided between the first push rod, the second push rod and the upper pressure plate.

10. The automatic pressing and bending mechanism according to any one of claims 1-9, characterized in that: The support member is detachably installed in the bracket, and the placement position is provided with a foolproof positioning member; The workpiece to be pressed is provided with a positioning groove that is compatible with the anti-foolproof positioning component.

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