Nut clamping and press-fitting mechanism and nut assembling machine

Abstract

The utility model relates to a nut clamping and press -fitting mechanism and nut assembling machine, and it relates to electronic component technical field, including fixed frame, connecting seat, mounting seat, nut clamping subassembly, nut press -fitting subassembly, nut clamping subassembly is used to clamping or releasing nut, including fixedly installed in the bottom side of mounting seat's rodless cylinder and two clamping jaws, nut press -fitting subassembly is used to press the nut of nut clamping subassembly clamping into the preset nut groove of product, including fixed seat fixedly installed on connecting seat and located above mounting seat, the lifting seat of activity between fixed seat and mounting seat, the press -fitting rod for press -fitting nut and the buffer structure for buffering lifting seat between fixed seat and lifting seat, the top of press -fitting rod is fixedly connected to lifting seat, and the bottom end extends downward and passes through mounting seat and then extends into between two clamping jaws, adopt above technical scheme, it can avoid the nut clamping and press -fitting mechanism and product to take place the impact when press -fitting nut, improves nut press -fitting precision and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of electronic component technology, specifically to a nut clamping and pressing mechanism and a nut assembly machine. Background Technology

[0002] In the field of electronic component manufacturing, the plastic bases of transformers and inductors usually require embedded nuts to enable subsequent component connections and fixation.

[0003] In existing technologies, the nut is usually installed manually by inserting it into a pre-set nut hole on the plastic base. This method is not only inefficient, but also prone to errors due to manual operation, which affects product quality.

[0004] Therefore, nut assembly machines capable of automatically assembling nuts have appeared on the market. For example, CN113649788B discloses an automatic pressing device for embedding nuts in products. It includes a nut gripping and pressing mechanism, which includes a nut suction head for adsorbing nuts and a nut upper pin mechanism for pressing the nuts on the nut suction head into the preset nut hole of the product. The nut upper pin mechanism includes an upper pin and an upper pin cylinder. The upper pin passes through the nut suction head from top to bottom. The bottom of the nut suction head is provided with a nut positioning pin that matches the inner diameter of the nut. During pressing, the nut suction head grips the nut and moves it above the product. The nut positioning pin is inserted into the nut embedding groove to play a guiding role. The upper pin cylinder drives the upper pin to move downward, thereby pressing the nut into the nut embedding groove.

[0005] However, although the nut gripping and pressing mechanism disclosed in CN113649788B can press the nut into the nut embedding groove, the nut positioning pin needs to be inserted into the nut embedding groove. During the pressing process, the nut positioning pin is prone to impact with the bottom wall of the nut embedding groove, which can cause the nut positioning pin to bend or break, affecting the nut pressing accuracy and efficiency. Utility Model Content

[0006] The purpose of this application is to provide a nut clamping and pressing mechanism and a nut assembly machine, which can prevent the nut clamping and pressing mechanism from colliding with the product when pressing nuts, thereby improving the nut pressing accuracy and efficiency.

[0007] This utility model provides a nut clamping and pressing mechanism. The technical solution adopted is: a nut clamping and pressing mechanism for clamping and pressing nuts into a preset nut groove of a product, including a fixed frame, a connecting seat, a mounting seat, a nut clamping assembly, and a nut pressing assembly. The connecting seat can move relative to the fixed frame in the horizontal and vertical directions, and the mounting seat is slidably disposed on the connecting seat and can move up and down relative to the connecting seat in the vertical direction. The nut clamping assembly is used to clamp or release a nut, including a rodless cylinder fixedly disposed on the bottom side of the mounting base and two jaws. The rodless cylinder has two sliders that can move closer or further apart from each other, and the two jaws are respectively connected to the sliders so that the two jaws can clamp or release the nut. The nut pressing assembly is used to press the nut clamped by the nut clamping assembly into the preset nut groove of the product. It includes a fixed seat fixed on the connecting seat and located above the mounting seat, a lifting seat movably disposed between the fixed seat and the mounting seat, a pressure rod for pressing the nut, and a buffer structure disposed between the fixed seat and the lifting seat for buffering the lifting seat. The top end of the pressure rod is fixedly connected to the lifting seat, and the bottom end extends downward and passes through the mounting seat and extends into the space between the two clamps.

[0008] Optionally, the buffer structure includes a plurality of first guide rods disposed between the fixed seat and the lifting seat, and a buffer spring disposed on the first guide rod. The lifting seat has a first guide groove that is inserted and engaged with the first guide rod. The top end of the first guide rod is fixedly connected to the fixed seat, and the bottom end extends vertically downward and is inserted into the first guide groove. The buffer spring is disposed along the length direction of the first guide rod, and the two ends of the buffer spring abut against the fixed seat and the lifting seat respectively.

[0009] Optionally, the buffer structure further includes multiple second guide rods disposed between the fixed seat and the lifting seat, and a limiting ring disposed on the second guide rods. The fixed seat has a second guide groove that is inserted and engaged with the second guide rod. The bottom end of the second guide rod is fixedly connected to the lifting seat, and the top end extends vertically upward through the second guide groove and out of the top surface of the fixed seat. The limiting ring is located between the fixed seat and the lifting seat, and the limiting ring is used to abut against the fixed seat to limit the lifting seat.

[0010] Optionally, a guide seat is also provided on the bottom side of the mounting base. The guide seat is located above the gripper. A vertical groove is provided on the guide seat. A guide sleeve is provided in the vertical groove. The bottom end of the pressure rod passes through the guide sleeve and extends into the space between the two grippers.

[0011] Optionally, the inner side of the guide sleeve is provided with a plurality of balls for rolling contact with the pressure rod along the vertical direction.

[0012] Optionally, the connecting seat includes a connecting plate and two side plates fixed on both sides of the vertical plate. The fixing seat is fixed on the connecting plate and located between the two side plates. The mounting seat is slidably disposed between the two side plates and can move up and down relative to the side plates in the vertical direction.

[0013] Optionally, sliding connection assemblies are provided between both sides of the mounting plate and the two side plates; the sliding connection assembly includes a slide rail fixedly mounted on the side plate, an upper limit block fixedly mounted on the side plate for limiting the top of the slide rail, a lower limit plate fixedly mounted on the side plate for limiting the bottom of the slide rail, a vertical plate fixedly mounted on the mounting base, a sliding block mounted on the vertical plate for sliding cooperation with the slide rail, and a vertical rod vertically mounted on the upper limit block. The upper limit block has a through hole for the vertical rod to pass through. The bottom end of the vertical rod is fixedly connected to the vertical plate, and the top end of the vertical rod passes vertically upward through the through hole and extends out of the top surface of the upper limit block. An abutment ring is fitted on the top end of the vertical rod, and the diameter of the abutment ring is larger than the diameter of the through hole.

[0014] Optionally, the fixing frame includes a horizontal bar arranged in the horizontal direction and two support rods symmetrically arranged on the bottom side of the horizontal bar for supporting the horizontal bar. The horizontal bar is slidably provided with a movable frame in the horizontal direction, and the horizontal bar is provided with a first drive module for driving the movable frame to move in the horizontal direction. The mobile frame is slidably equipped with a lifting plate in the vertical direction, the connecting seat is fixedly mounted on the lifting plate, and the mobile frame is equipped with a second drive module for driving the lifting plate to move in the vertical direction.

[0015] Optionally, the number of pressure rods in both the nut clamping assembly and the nut pressing assembly is four.

[0016] Another aspect of this application provides a nut assembly machine, including the nut clamping and pressing mechanism described above.

[0017] After adopting the above technical solution, the beneficial effects of this utility model are as follows: In operation, this application first uses the two jaws of the nut clamping assembly to clamp the nut. Then, the driving connecting seat moves to the product and descends, causing the mounting seat and nut clamping assembly to descend until they contact the product surface, aligning the nut with the preset nut groove. At this point, the connecting seat continues to descend. Because the mounting seat and connecting seat can slide relative to each other, and the nut clamping assembly cannot descend further due to contact with the product surface, the connecting seat causes the fixed seat, lifting seat, and pressure rod to descend relative to the mounting seat. This allows the pressure rod to press the nut into the preset nut groove, achieving nut pressing. Simultaneously, a buffer structure cushions the lifting seat, preventing the two jaws of the nut clamping assembly and the pressure rod of the nut pressing assembly from colliding with the product, extending the service life of the entire nut clamping and pressing mechanism, and ensuring pressing accuracy and efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this embodiment; Figure 2 This is a partial view of this embodiment; Figure 3 This is a partial sectional view of this embodiment; Figure 4 yes Figure 3 Enlarged view of section A; Figure 5 This is a cross-sectional view from another perspective of this embodiment.

[0020] Explanation of reference numerals in the attached drawings: 10. Fixed frame; 11. Crossbar; 12. Support rod; 13. Moving frame; 14. First drive module; 15. Lifting plate; 16. Second drive module; 20. Connecting seat; 21. Vertical plate; 22. Side plate; 23. Sliding connection assembly; 231. Slide rail; 232. Upper limit block; 233. Lower limit plate; 234. Vertical plate; 235. Sliding block; 236. Vertical rod; 237. Abutment ring; 30. Mounting seat; 40. Nut clamping assembly; 41. Rodless cylinder; 42. Gripper; 50. Nut pressing assembly; 51. Fixed seat; 52. Lifting seat; 53. Pressure rod; 54. Buffer structure; 541. First guide rod; 542. Buffer spring; 543. Second guide rod; 544. Limiting ring; 60. Guide seat; 61. Vertical groove; 62. Guide sleeve; 621. Ball bearing. Detailed Implementation

[0021] The following will refer to the appendix in the embodiments of this utility model. Figures 1-5 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0022] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0023] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0024] This embodiment provides a nut clamping and pressing mechanism for clamping and pressing nuts into a pre-set nut groove in a product, thereby achieving automatic nut clamping and pressing. Specifically, refer to... Figures 1-5 The nut clamping and pressing mechanism includes a fixed frame 10, a connecting seat 20, a mounting seat 30, a nut clamping assembly 40, and a nut pressing assembly 50. The connecting seat 20 can move relative to the fixed frame 10 in the horizontal and vertical directions. The mounting seat 30 is slidably disposed on the connecting seat 20 and can move up and down relative to the connecting seat 20 in the vertical direction.

[0025] The nut clamping assembly 40 is used to clamp or release a nut, including a rodless cylinder 41 fixedly disposed on the bottom side of the mounting base 30 and two jaws 42. The rodless cylinder 41 has two sliders that can move closer or further away from each other, and the two jaws 42 are respectively connected to the sliders so that the two jaws 42 can clamp or release the nut. The nut pressing assembly 50 is used to press the nut clamped by the nut clamping assembly 40 into the preset nut groove of the product. It includes a fixed seat 51 fixedly mounted on the connecting seat 20 and located above the mounting seat 30, a lifting seat 52 movably disposed between the fixed seat 51 and the mounting seat 30, a pressing rod 53 for pressing the nut, and a buffer structure 54 disposed between the fixed seat 51 and the lifting seat 52 for buffering the lifting seat 52. The top end of the pressing rod 53 is fixedly connected to the lifting seat 52, and the bottom end extends downward and passes through the mounting seat 30 and extends into the space between the two grippers 42.

[0026] In this embodiment, the fixed frame 10 includes a horizontal bar 11 arranged in the horizontal direction and two support rods symmetrically arranged on the bottom side of the horizontal bar 11 for supporting the horizontal bar 11. A movable frame 13 is slidably arranged on the horizontal bar 11, and a first drive module 14 for driving the movable frame 13 to move in the horizontal direction is provided on the horizontal bar 11. A lifting plate 15 is slidably arranged on the movable frame 13 in the vertical direction, and a connecting seat 20 is fixedly arranged on the lifting plate 15. A second drive module 16 for driving the lifting plate 15 to move in the vertical direction is provided on the movable frame 13.

[0027] The first drive module 14 drives the moving frame 13 to move horizontally, causing the connecting seat 20 to move horizontally relative to the fixed frame 10. The second drive module 16 drives the lifting plate 15 to move vertically, thus causing the connecting seat 20 to move horizontally relative to the fixed frame 10. In other words, the first drive module 14 and the second drive module 16 enable the connecting seat 20 to move in both horizontal and vertical directions. In this embodiment, both the first drive module 14 and the second drive module 16 are screw motor driven structures, which are well-known in the art and not improvements of this application, and will not be elaborated upon here. In other embodiments, the first drive module 14 and the second drive module 16 may also be linear motors or other linear drive mechanisms, which can be selected according to actual conditions, and will not be limited here.

[0028] After the two jaws 42 of the nut clamping assembly 40 clamp the nut, the connecting seat 20 is moved to directly above the product via the first drive module 14 and the second drive module 16. At this time, the nut clamped by the nut clamping assembly 40 is aligned with the preset nut groove on the product. Then, the connecting seat 20 is driven to move vertically, causing the nut clamping assembly 40 and the nut pressing assembly 50 to descend synchronously. When the two jaws 42 of the nut clamping assembly 40 come into contact with the product, the connecting seat 20 continues to descend. Since the mounting seat 30 is slidably connected to the connecting seat 20 and can move up and down relative to the connecting seat 20 in the vertical direction, when the two jaws 42 of the nut clamping assembly 40 come into contact with the product and cannot descend, the nut pressing assembly 50 can continue to descend relative to the nut clamping assembly 40, so that the pressure rod 53 of the nut pressing assembly 50 can press the clamped nut into the preset nut groove of the product. Meanwhile, the buffer structure 54 buffers the lifting seat 52, preventing the two grippers 42 of the nut clamping assembly 40 and the pressure rod 53 of the nut pressing assembly 50 from colliding with the product, thus extending the service life of the entire nut clamping and pressing mechanism and ensuring pressing accuracy and efficiency.

[0029] Furthermore, the buffer structure 54 includes a plurality of first guide rods 541 disposed between the fixed seat 51 and the lifting seat 52, and buffer springs 542 disposed on the first guide rods 541. The lifting seat 52 is provided with a first guide groove that is inserted and engaged with the first guide rods 541. The top end of the first guide rod 541 is fixedly connected to the fixed seat 51, and the bottom end extends vertically downward and is inserted into the first guide groove. The buffer springs 542 are arranged along the length direction of the first guide rods 541, and the two ends of the buffer springs 542 abut against the fixed seat 51 and the lifting seat 52 respectively.

[0030] When the two jaws 42 of the nut clamping assembly 40 abut against the product, the connecting seat 20 continues to descend, causing the fixed seat 51, lifting seat 52, and pressure rod 53 to descend synchronously. At this time, the first guide rod 541 slides in the first guide groove, playing a guiding role and making the descent of the lifting seat 52 and pressure rod 53 more stable. The buffer spring 542 can absorb the impact force of the nut clamping assembly 40 hitting the product, avoiding the two jaws 42 of the nut clamping assembly 40 directly impacting the product and causing damage to the nut clamping assembly 40. On the other hand, it can slow down the descent speed of the lifting seat 52 and the pressure rod 53, so that the pressure rod 53 can stably press the nut into the preset nut groove on the product, avoiding the situation where the pressure rod 53 descends rapidly and violently collides with the preset nut groove, protecting the integrity of the nut pressing mechanism, and ensuring the accuracy and efficiency of pressing.

[0031] Furthermore, the buffer structure 54 also includes a plurality of second guide rods 543 disposed between the fixed seat 51 and the lifting seat 52, and a limiting ring 544 disposed on the second guide rods 543. The fixed seat 51 is provided with a second guide groove that is inserted and engaged with the second guide rods 543. The bottom end of the second guide rod 543 is fixedly connected to the lifting seat 52, and the top end extends vertically upward through the second guide groove and out of the top surface of the fixed seat 51. The limiting ring 544 is located between the fixed seat 51 and the lifting seat 52, and the limiting ring 544 is used to abut against the fixed seat 51 to limit the lifting seat 52.

[0032] As the lifting seat 52 descends, the second guide rod 543 slides within the second guide groove, further enhancing the stability of the lifting seat 52's movement. Simultaneously, the limiting ring 544 ensures that the lifting seat 52 does not move excessively during descent. When the lifting seat 52 descends to a certain position, the limiting ring 544 abuts against the fixed seat 51, thereby restricting further descent of the lifting seat 52 and preventing the risk of damage to the nut clamping and pressing mechanism due to excessive descent.

[0033] Furthermore, a guide seat 60 is provided on the bottom side of the mounting base 30. The guide seat 60 is located above the gripper 42. A vertical groove 61 is provided on the guide seat 60. A guide sleeve 62 is provided in the vertical groove 61. The bottom end of the pressure rod 53 passes through the guide sleeve 62 and extends into the space between the two grippers 42.

[0034] The guide sleeve 62 further ensures the stability of the pressure rod 53 during descent, preventing unnecessary friction or collision between the pressure rod 53 and the gripper 42 due to misalignment. Simultaneously, the design of the guide seat 60 and the vertical groove 61 allows the guide sleeve 62 to be securely mounted on the mounting base 30, preventing it from easily falling off or wobbling. When the pressure rod 53 passes through the guide sleeve 62, the guide sleeve 62 guides and supports the pressure rod 53, enabling it to be accurately pressed into the preset nut groove, improving the accuracy and reliability of the pressing process. Furthermore, the combination of the guide seat 60 and the guide sleeve 62 enhances the stability and durability of the entire nut clamping and pressing mechanism, extending the service life of the equipment.

[0035] Furthermore, the inner side of the guide sleeve 62 is provided with a plurality of balls 621 for rolling contact with the pressure rod 53 along the vertical direction.

[0036] The ball bearings 621 further reduce the frictional resistance of the pressure rod 53 within the guide sleeve 62, making the descent of the pressure rod 53 smoother and more stable. Simultaneously, the rolling contact of the ball bearings 621 effectively disperses the pressure of the pressure rod 53 on the guide sleeve 62, preventing wear or deformation of the guide sleeve 62 due to excessive local pressure.

[0037] Furthermore, the connecting seat 20 includes a connecting plate 21 and two side plates 22 fixedly disposed on both sides of the connecting plate 21. The fixing seat 51 is fixedly disposed on the connecting plate 21 and located between the two side plates 22. The mounting seat 30 is slidably disposed between the two side plates 22 and can move up and down relative to the side plates 22 in the vertical direction.

[0038] The connecting plate 21, as the main part of the connecting seat 20, connects the two side plates 22, which in turn firmly fix the fixing seat 51 and provide guidance for the sliding of the mounting seat 30. The sliding design of the mounting seat 30 between the two side plates 22 allows the mounting seat 30 to move freely up and down in the vertical direction as needed, improving the flexibility of the entire nut clamping and pressing mechanism and ensuring precise matching between the components during the pressing process.

[0039] Furthermore, sliding connection components 23 are provided between both sides of the mounting base 30 and the two side plates 22.

[0040] Specifically, the sliding connection assembly 23 includes a slide rail 231 fixedly mounted on the side plate 22, an upper limit block 232 fixedly mounted on the side plate 22 for limiting the top of the slide rail 231, a lower limit plate 233 fixedly mounted on the side plate 22 for limiting the bottom of the slide rail 231, a vertical plate 234 fixedly mounted on the mounting base 30, a sliding block 235 mounted on the vertical plate 234 for sliding cooperation with the slide rail 231, and a vertical rod 236 vertically mounted on the upper limit block 232. The upper limit block 232 has a through hole for the vertical rod 236 to pass through. The bottom end of the vertical rod 236 is fixedly connected to the vertical plate 234, and the top end of the vertical rod 236 passes vertically upward through the through hole and extends out of the top surface of the upper limit block 232. The top end of the vertical rod 236 is fitted with an abutment ring 237, and the diameter of the abutment ring 237 is larger than the diameter of the through hole.

[0041] When the connecting seat 20 and the mounting seat 30 descend synchronously to a certain height, the two jaws 42 of the nut clamping assembly 40 contact the product. At this point, the connecting seat 20 continues to descend, that is, the connecting seat 20 descends relative to the mounting seat 30, which in turn drives the nut pressing assembly 50 to descend relative to the nut clamping assembly 40, thereby pressing the nut onto the product. This ensures the stability and accuracy of the pressing process and greatly improves the pressing efficiency. In addition, the fit design between the slide rail 231 and the slider makes the sliding process smoother, reduces friction and wear, and extends the service life of the equipment.

[0042] Furthermore, in this embodiment, the number of pressure rods 53 in both the nut clamping assembly 40 and the nut pressing assembly 50 is four sets.

[0043] By adopting the above settings, each set of nut clamping components 40 can accurately clamp the nut, and the four sets of pressure rods 53 can apply force simultaneously to press the nut evenly onto the product, thereby greatly improving the nut assembly efficiency.

[0044] In addition, this application also provides a nut assembly machine, which includes a machine body, a product conveying mechanism, a nut supply mechanism, a nut clamping and pressing mechanism as described above, and a control mechanism. The product conveying mechanism is used to convey the product to a preset position, the nut supply mechanism is used to continuously supply nuts, and the nut clamping and pressing mechanism is used to clamp the nuts provided by the nut supply mechanism and press the nuts into a preset nut groove on the product.

[0045] Working Principle: When a nut needs to be pressed onto a product, the product conveying mechanism first transports the product to a preset position, and then the nut supply mechanism continuously supplies nuts. Next, the two grippers 42 of the nut clamping assembly 40 approach each other under the drive of the rodless cylinder 41, thereby clamping the nut provided by the nut supply mechanism. Subsequently, the connecting seat 20 is driven to move directly above the product by the first drive module 14 and the second drive module 16, aligning the nut clamped by the nut clamping assembly 40 with the preset nut groove on the product. Afterward, the connecting seat 20 continues to descend, causing the nut clamping assembly 40 and the nut pressing assembly 50 to descend synchronously. When the two grippers 42 of the nut clamping assembly 40 contact the product, the nut clamping assembly 40 stops descending because the mounting seat 30 can move vertically up and down relative to the connecting seat 20, while the nut pressing assembly 50 continues to descend, pressing the nut into the preset nut groove of the product through the pressure rod 53. During this process, the buffer structure 54 acts as a buffer to prevent the nut clamping assembly 40 and the nut pressing assembly 50 from colliding with the product, thus extending the service life of the entire nut clamping and pressing mechanism and ensuring pressing accuracy and efficiency.

[0046] The above is only used to illustrate the technical solution of this utility model and not to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A nut clamping and pressing mechanism for clamping and pressing a nut into a pre-set nut groove in a product, characterized in that, It includes a fixed frame (10), a connecting seat (20), a mounting seat (30), a nut clamping assembly (40), and a nut pressing assembly (50). The connecting seat (20) can move relative to the fixed frame (10) in the horizontal and vertical directions. The mounting seat (30) is slidably disposed on the connecting seat (20) and can move up and down relative to the connecting seat (20) in the vertical direction. The nut clamping assembly (40) is used to clamp or release a nut, including a rodless cylinder (41) fixedly disposed on the bottom side of the mounting base (30) and two jaws (42). The rodless cylinder (41) has two sliders that can move closer or further away from each other. The two jaws (42) are respectively connected to the sliders so that the two jaws (42) can clamp or release the nut. The nut pressing assembly (50) is used to press the nut clamped by the nut clamping assembly (40) into the preset nut groove of the product. It includes a fixed seat (51) fixed on the connecting seat (20) and located above the mounting seat (30), a lifting seat (52) movably disposed between the fixed seat (51) and the mounting seat (30), a pressing rod (53) for pressing the nut, and a buffer structure (54) disposed between the fixed seat (51) and the lifting seat (52) for buffering the lifting seat (52). The top end of the pressing rod (53) is fixedly connected to the lifting seat (52), and the bottom end extends downward and passes through the mounting seat (30) and then extends into the space between the two clamps (42).

2. The nut clamping and pressing mechanism according to claim 1, characterized in that, The buffer structure (54) includes a plurality of first guide rods (541) disposed between the fixed seat (51) and the lifting seat (52) and buffer springs (542) disposed on the first guide rods (541). The lifting seat (52) has a first guide groove that is inserted and cooperates with the first guide rods (541). The top end of the first guide rod (541) is fixedly connected to the fixed seat (51), and the bottom end extends vertically downward and is inserted into the first guide groove. The buffer springs (542) are arranged along the length direction of the first guide rods (541), and the two ends of the buffer springs (542) abut against the fixed seat (51) and the lifting seat (52) respectively.

3. The nut clamping and pressing mechanism according to claim 2, characterized in that, The buffer structure (54) further includes a plurality of second guide rods (543) disposed between the fixed seat (51) and the lifting seat (52) and a limiting ring (544) disposed on the second guide rods (543). The fixed seat (51) is provided with a second guide groove that is inserted and engaged with the second guide rods (543). The bottom end of the second guide rod (543) is fixedly connected to the lifting seat (52), and the top end extends vertically upward through the second guide groove and out of the top surface of the fixed seat (51). The limiting ring (544) is located between the fixed seat (51) and the lifting seat (52), and the limiting ring (544) is used to abut against the fixed seat (51) to limit the lifting seat (52).

4. The nut clamping and pressing mechanism according to claim 1, characterized in that, The mounting base (30) is also provided with a guide seat (60) on its bottom side. The guide seat (60) is located above the gripper (42). A vertical groove (61) is provided on the guide seat (60). A guide sleeve (62) is provided in the vertical groove (61). The bottom end of the pressure rod (53) passes through the guide sleeve (62) and extends into the space between the two grippers (42).

5. The nut clamping and pressing mechanism according to claim 4, characterized in that, The inner side of the guide sleeve (62) is provided with a plurality of balls (621) for rolling contact with the pressure rod (53) along the vertical direction.

6. The nut clamping and pressing mechanism according to claim 1, characterized in that, The connecting seat (20) includes a connecting plate (21) and two side plates (22) fixed on both sides of the connecting plate (21). The fixing seat (51) is fixed on the connecting plate (21) and located between the two side plates (22). The mounting seat (30) is slidably disposed between the two side plates (22) and can move up and down relative to the side plates (22) in the vertical direction.

7. The nut clamping and pressing mechanism according to claim 6, characterized in that, Sliding connection components (23) are provided between both sides of the mounting base (30) and the two side plates (22); The sliding connection assembly (23) includes a slide rail (231) fixedly mounted on the side plate (22), an upper limit block (232) fixedly mounted on the side plate (22) for limiting the top of the slide rail (231), a lower limit plate (233) fixedly mounted on the side plate (22) for limiting the bottom of the slide rail (231), a vertical plate (234) fixedly mounted on the mounting base (30), and a sliding block (234) mounted on the vertical plate (234) for sliding cooperation with the slide rail (231). 5) and a vertical rod (236) vertically mounted on the upper limit block (232), wherein the upper limit block (232) has a through hole for the vertical rod (236) to pass through, the bottom end of the vertical rod (236) is fixedly connected to the connecting plate (21), the top end of the vertical rod (236) vertically upward passes through the through hole and extends out of the top surface of the upper limit block (232), and the top end of the vertical rod (236) is fitted with an abutment ring (237), and the diameter of the abutment ring (237) is larger than the diameter of the through hole.

8. The nut clamping and pressing mechanism according to claim 1, characterized in that, The fixed frame (10) includes a horizontal bar (11) arranged in the horizontal direction and two support rods (12) symmetrically arranged on the bottom side of the horizontal bar (11) for supporting the horizontal bar (11). The horizontal bar (11) is slidably provided with a movable frame (13) in the horizontal direction. The horizontal bar (11) is provided with a first drive module (14) for driving the movable frame (13) to move in the horizontal direction. The movable frame (13) is slidably provided with a lifting plate (15) in the vertical direction, the connecting seat (20) is fixedly provided on the lifting plate (15), and the movable frame (13) is provided with a second driving module (16) for driving the lifting plate (15) to move in the vertical direction.

9. The nut clamping and pressing mechanism according to claim 1, characterized in that, The number of pressure rods (53) of both the nut clamping assembly (40) and the nut pressing assembly (50) is four.

10. A nut assembly machine, characterized in that, Includes the nut clamping and pressing mechanism as described in any one of claims 1-9.

Images