A nail-connecting device for hinged forearm and middle arm

Abstract

This utility model relates to the technical field of hardware processing equipment and discloses a nailing connection device for a hinge forearm and middle arm. It includes a hinge forearm conveying channel located on one side of a hinge fixture, a hinge middle arm placed inside the hinge fixture, a hinge forearm transfer unit on one side of the hinge forearm conveying channel, a retractable positioning pin unit on one side of the hinge fixture near the hinge forearm conveying channel, and a pin insertion unit on the other side. This nailing connection device facilitates the pin insertion unit to insert pins into two connecting holes for series connection, thereby facilitating subsequent riveting. It has a relatively simple structure, is easy to maintain, provides accurate positioning, and has relatively lower equipment costs and higher work efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of hardware processing equipment, specifically, a nailing connection device for a hinged forearm and middle arm. Background Technology

[0002] Existing cabinet door hinges are mechanical structures used to allow furniture doors to rotate, as shown in the attached diagram. Figure 7 The schematic diagram of the three-dimensional structure of the hinge shown includes a hinge middle arm 38 and a hinge small arm 39. One end of the hinge small arm 39 is inserted into one end of the hinge middle arm 38, so that the two connecting holes correspond to each other, and then a pin 37 is inserted to rivet the pin 37.

[0003] However, since the two connecting holes of the hinge middle arm 38 and hinge small arm 39 are relatively small, the efficiency of manually inserting the pin is relatively slow. Using equipment to automatically insert the pin requires larger and more complex equipment, which requires a more precise positioning structure, thus increasing the equipment cost.

[0004] Therefore, a nailing connection device with a relatively simple structure and the ability to accurately position and insert the pin is needed. Utility Model Content

[0005] In order to overcome the defects of the existing technology, this utility model provides a nailing connection device for the hinge forearm and middle arm to solve the problems in the existing technology.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a nailing connection device for a hinge forearm and a middle arm, including a hinge forearm conveying channel located on one side of the hinge fixture, a hinge middle arm placed inside the hinge fixture, a hinge forearm transfer unit provided on one side of the hinge forearm conveying channel, a retractable positioning pin unit provided on one side of the hinge fixture near the hinge forearm conveying channel, and a pin insertion unit provided on the other side.

[0007] In the aforementioned nailing connection device for a hinged forearm and a middle arm, the hinged forearm transfer unit includes a support base, a connecting plate is mounted on the support base, a sliding seat is mounted on the connecting plate via a first slide rail slider, a finger cylinder seat is mounted on the sliding seat via a second slide rail slider, and a finger cylinder is mounted on the finger cylinder seat.

[0008] In the aforementioned nailing connection device for a hinged forearm and middle arm, the finger cylinder has two grippers, and a filling block is provided between the two grippers. The upper end of the filling block is fixedly connected to the finger cylinder.

[0009] In the aforementioned nailing connection device for a hinged forearm and middle arm, a first cylinder connected to a finger cylinder seat is installed at the upper end of the sliding seat, and a second cylinder connected to the sliding seat is installed at one end of the connecting plate.

[0010] In the aforementioned nailing connection device for hinge forearm and middle arm, the positioning pin unit includes a connecting seat, a base is installed at the upper end of the connecting seat, a reciprocating pressure block is provided on the base, a pressure head is provided at the end of the pressure block near the hinge fixture, and a movable pin is provided inside the pressure block, the pin moving within the pressure head.

[0011] In the aforementioned nailing connection device for a hinged forearm and middle arm, a guide plate is provided inside the base, and an arc-shaped guide groove is provided on the guide plate. A guide rod is installed on the pressure block, with the lower end of the guide rod located in the arc-shaped guide groove. A guide groove is provided at the upper end of the base. The guide rod passes through the pressure block, the guide plate, and the base from top to bottom, so that the pressure block and the guide plate reciprocate. A third cylinder connected to the guide plate is installed on one side of the upper end of the connecting seat.

[0012] In the aforementioned nailing connection device for a hinged forearm and middle arm, the end of the guide pin away from the pressure head is connected to a push arm, and the push arm is connected to a fourth cylinder mounted on the connecting seat.

[0013] The pin insertion unit in the aforementioned pinning connection device for a hinged forearm and middle arm includes a mounting plate. A slide block is mounted on one side of the upper end of the mounting plate via a third slide rail slider. A pin channel is provided on the upper end of the slide block. A pin inlet tube is provided at one end of the pin channel, and a pin outlet is provided at the other end. Pin clamps are provided on both sides of the pin channel. A pin is provided at the lower end of the pin inlet tube. The pin passes through the pin channel and can move within the pin outlet.

[0014] In the aforementioned nailing connection device for hinged forearm and middle arm, a nail groove is provided on the inner side of the end of each nail clamp.

[0015] In the aforementioned nailing connection device for a hinged forearm and middle arm, the end of the ejector pin away from the pin channel is connected to a fifth cylinder via an ejector pin seat, and a sixth cylinder is provided on one side of the fifth cylinder, with the cylinder shaft of the sixth cylinder connected to a slide block.

[0016] The beneficial effects of this utility model are as follows: the hinge arm conveying channel arranges and conveys the hinge arms through a vibrator; the hinge arm transfer unit clamps the hinge arms in the conveying channel onto the hinge fixture and inserts the hinge arms into one end of the hinge middle arm; then, the positioning pin unit extends and retracts to connect the two connecting holes of the hinge arm and the hinge middle arm together for positioning, so that the pin insertion unit can insert the pins into the two connecting holes for series connection, thereby facilitating subsequent riveting. The structure is relatively simple, maintenance is convenient, positioning is accurate, and the equipment cost is relatively low, with high work efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the nailing connection device in this embodiment.

[0018] Figure 2 This is a three-dimensional structural diagram of the hinged forearm transfer unit in this embodiment.

[0019] Figure 3 This is a three-dimensional structural diagram of the positioning pin unit and the pin insertion unit in this embodiment.

[0020] Figure 4 This is a three-dimensional structural diagram of the positioning pin unit in this embodiment.

[0021] Figure 5 This is a three-dimensional structural diagram of the pin insertion unit in this embodiment.

[0022] Figure 6 This is an exploded view of the pin insertion unit in this embodiment.

[0023] Figure 7 This is a three-dimensional structural diagram of a hinge in the prior art.

[0024] In the diagram: 1. Hinge fixture; 2. Hinge forearm conveying channel; 3. Hinge forearm transfer unit; 4. Positioning pin unit; 5. Pin insertion unit; 6. Support seat; 7. Connecting plate; 8. Sliding seat; 9. Finger cylinder seat; 10. Finger cylinder; 11. Gripper; 12. Filling block; 13. First cylinder; 14. Second cylinder; 15. Connecting seat; 16. Base; 17. Guide plate; 18. Arc-shaped guide groove; 19. Pressure block; 20. Guide rod; 21. Third cylinder. 22. Fourth cylinder, push arm, pin, pressure head, mounting plate, slide block, pin channel, pin clamp, pin outlet, pin groove, pin inlet tube, ejector pin, ejector pin seat, fifth cylinder, sixth cylinder, pin, hinge middle arm, hinge small arm, first slide rail slider, second slide rail slider, third slide rail slider. Detailed Implementation

[0025] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0026] Combination Figures 1 to 7 The device shown is a nailing connection device for a hinge forearm and a middle arm. It includes a hinge forearm conveying channel 2 located on one side of the hinge fixture 1. The hinge fixture 1 contains a hinge middle arm 38. The hinge fixture 1 is mainly used to position the hinge middle arm 38. A hinge forearm transfer unit 3 is provided on one side of the hinge forearm conveying channel 2. A retractable positioning pin unit 4 is provided on the side of the hinge fixture 1 near the hinge forearm conveying channel 2. A pin insertion unit 5 is provided on the other side. In this embodiment, the hinge arm conveying channel 2 arranges and conveys the hinge arms 39 via a vibrator. The hinge arm transfer unit 3 clamps the hinge arms 39 in the hinge arm conveying channel 2 onto the hinge fixture 1 and inserts the hinge arms 39 into one end of the hinge middle arm 38. Then, the positioning pin unit 4 extends and retracts to connect the two connecting holes of the hinge arms 39 and the hinge middle arm 38 together for positioning. This allows the pin insertion unit 5 to insert the pins 37 into the two connecting holes for series connection, facilitating subsequent riveting. The structure is relatively simple, maintenance is convenient, positioning is accurate, equipment cost is relatively low, and work efficiency is high.

[0027] In this embodiment, the hinged forearm transfer unit 3 includes a support base 6, a connecting plate 7 is horizontally mounted on the support base 6, a sliding seat 8 is vertically mounted on the connecting plate 7 via a first slide rail slider 40, a finger cylinder seat 9 is mounted on the sliding seat 8 via a second slide rail slider 41, a finger cylinder 10 is mounted on the finger cylinder seat 9, a first cylinder 13 connected to the finger cylinder seat 9 is mounted on the upper end of the sliding seat 8, and a second cylinder 14 connected to the sliding seat 8 is mounted on one end of the connecting plate 7; by moving the finger cylinder 10 left and right and up and down, the hinged forearm 39 can be clamped and transferred to a different position.

[0028] The finger cylinder 10 has two grippers 11, and a filling block 12 is provided between the two grippers 11. The upper end of the filling block 12 is fixedly connected to the finger cylinder 10. Since the center of the hinge arm 39 is hollow, in order to prevent the hinge arm 39 from being deformed during the gripping process of the finger cylinder 10, the filling block 12 can be inserted into the hinge arm 39 before the finger cylinder 10 moves down to grip, so as to prevent the hinge arm 39 from being deformed.

[0029] The positioning pin unit 4 in this embodiment includes a connecting seat 15, a base 16 is installed on the upper end of the connecting seat 15, a reciprocating pressure block 19 is provided on the base 16, a pressure head 25 is provided at the end of the pressure block 19 near the hinge fixture 1, and a movable pin 24 is provided inside the pressure block 19. The pin 24 moves within the pressure head 25. After the hinge arm 39 is inserted into one end of the hinge middle arm 38, in order to prevent the hinge arm 39 from deviating in position, the pin 24 is moved so that the pin 24 passes into two corresponding holes on the hinge middle arm 38 and the hinge arm 39, so that the holes between the hinge middle arm 38 and the hinge arm 39 will not deviate, so as to facilitate the subsequent insertion of the pin 37.

[0030] Specifically, a guide plate 17 is inserted into the base 16, and an arc-shaped guide groove 18 is formed on the guide plate 17. A guide rod 20 is installed on the pressure block 19, with the lower end of the guide rod 20 located in the arc-shaped guide groove 18. A guide groove is provided at the upper end of the base 16, and a guide rail is provided at the lower end of the pressure block 19, with the guide rail located in the guide groove. The guide rod 20 passes through the pressure block 19, the guide plate 17, and the base 16 from top to bottom, causing the pressure block 19 and the guide plate 17 to reciprocate. A connecting seat 15 is installed on one side of the upper end, which is connected to the guide plate 17. The third cylinder 21 is connected to the guide plate 17, which moves the guide rod 20 under the guidance of the arc-shaped guide groove 18, causing the pressure block 19 to move back and forth. This facilitates the pressing of the hinge middle arm 38 and hinge small arm 39 during the subsequent insertion of the pin 37, improving the stability of the pin insertion. The guide needle 24 moves within the pressure head 25, allowing it to penetrate the connecting hole of the hinge middle arm 38 and hinge small arm 39, preparing for the subsequent installation of the pin 37 in the pin insertion unit 5.

[0031] It is worth noting that the end of the needle 24 away from the pressure head 25 is connected to a push arm 23, and the push arm 23 is connected to a fourth cylinder 22 mounted on the connecting seat 15; the fourth cylinder 22 drives the push arm 23, thereby driving the needle 24 to move back and forth, so as to pass into the connecting hole of the hinge middle arm 38 and the hinge small arm 39.

[0032] The pin insertion unit 5 in this embodiment includes a mounting plate 26. A slide block 27 is mounted on one side of the upper end of the mounting plate 26 via a third slide rail slider 42. A pin channel 28 is provided on the upper end of the slide block 27. A pin inlet tube 32 is provided at one end of the pin channel 28, and a pin outlet 30 is provided at the other end. Pin clips 29 are provided on both sides of the pin channel 28. A ejector pin 33 is provided at the lower end of the pin inlet tube 32. The ejector pin 33 passes through the pin channel 28 and... 3. The slide 27 can move within the pin outlet 30; the slide 27 moves, bringing the pin clamp 29 close to the outside of the connection hole between the hinge middle arm 38 and the hinge small arm 39. The pin 37 enters the pin channel 28 from the pin inlet tube 32. The pin 37 is pushed out by the ejector pin 33, thereby inserting the pin 37 into the connection hole between the hinge middle arm 38 and the hinge small arm 39. At the same time, the guide pin 24 gradually withdraws to ensure that the position between the hinge middle arm 38 and the hinge small arm 39 does not shift.

[0033] The inner side of the end of the pin clip 29 is provided with a pin groove 31, so that the connection hole of the hinge middle arm 38 and the hinge small arm 39 corresponds to the pin groove 31.

[0034] It is worth noting that the end of the ejector pin 33 away from the pin channel 28 is connected to the fifth cylinder 35 through the ejector pin seat 34. A sixth cylinder 36 is provided on one side of the fifth cylinder 35. The cylinder shaft of the sixth cylinder 36 is connected to the slide 27. The ejector pin 33 can be driven by the fifth cylinder 35, and the sixth cylinder 36 can drive the slide 27 to move, thereby facilitating the insertion of the pin 37.

[0035] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A nailing connecting device of a hinge small arm and a middle arm, comprising a hinge small arm conveying channel (2) on one side of a hinge jig (1), a hinge middle arm (38) is placed in the hinge jig (1), characterized in that, A hinge arm transfer unit (3) is provided on one side of the hinge arm conveying channel (2), and a retractable positioning pin unit (4) is provided on the side of the hinge fixture (1) near the hinge arm conveying channel (2), and a pin insertion unit (5) is provided on the other side.

2. The nailing connection device for a hinged forearm and middle arm according to claim 1, characterized in that, The hinged forearm transfer unit (3) includes a support base (6), a connecting plate (7) is mounted on the support base (6), a sliding seat (8) is mounted on the connecting plate (7) via a first slide rail slider (40), a finger cylinder seat (9) is mounted on the sliding seat (8) via a second slide rail slider (41), and a finger cylinder (10) is mounted on the finger cylinder seat (9).

3. The nailing connection device for a hinged forearm and middle arm according to claim 2, characterized in that, The finger cylinder (10) has two grippers (11), and a filling block (12) is provided between the two grippers (11). The upper end of the filling block (12) is fixedly connected to the finger cylinder (10).

4. The nailing connection device for a hinged forearm and middle arm according to claim 2, characterized in that, The upper end of the sliding seat (8) is equipped with a first cylinder (13) connected to the finger cylinder seat (9), and one end of the connecting plate (7) is equipped with a second cylinder (14) connected to the sliding seat (8).

5. The nailing connection device for a hinged forearm and middle arm according to claim 2, characterized in that, The positioning pin unit (4) includes a connecting seat (15), and a base (16) is installed on the upper end of the connecting seat (15). A reciprocating pressure block (19) is provided on the base (16). A pressure head (25) is provided at one end of the pressure block (19) near the hinge fixture (1). A movable pin (24) is provided inside the pressure block (19), and the pin (24) moves inside the pressure head (25).

6. The nailing connection device for a hinged forearm and middle arm according to claim 5, characterized in that, A guide plate (17) is inserted inside the base (16). An arc-shaped guide groove (18) is provided on the guide plate (17). A guide rod (20) is installed on the pressure block (19). The lower end of the guide rod (20) is located in the arc-shaped guide groove (18). A guide groove is provided at the upper end of the base (16). The guide rod (20) passes through the pressure block (19), the guide plate (17) and the base (16) from top to bottom, so that the pressure block (19) and the guide plate (17) move back and forth in coordination. A third cylinder (21) connected to the guide plate (17) is installed on one side of the upper end of the connecting seat (15).

7. The nailing connection device for a hinged forearm and middle arm according to claim 6, characterized in that, The end of the needle (24) away from the pressure head (25) is connected to a push arm (23), and the push arm (23) is connected to a fourth cylinder (22) mounted on the connecting seat (15).

8. The nailing connection device for a hinged forearm and middle arm according to claim 7, characterized in that, The pin insertion unit (5) includes a mounting plate (26). A slide block (27) is mounted on one side of the upper end of the mounting plate (26) via a third slide rail slider (42). A pin channel (28) is provided on the upper end of the slide block (27). A pin inlet tube (32) is provided at one end of the pin channel (28), and a pin outlet (30) is provided at the other end. Pin clips (29) are provided on both sides of the pin channel (28). A pin (33) is provided at the lower end of the pin inlet tube (32). The pin (33) passes through the pin channel (28) and can move within the pin outlet (30).

9. The nailing connection device for a hinged forearm and middle arm according to claim 8, characterized in that, The pin clip (29) has a pin groove (31) on the inner side of its end.

10. The nailing connection device for a hinged forearm and middle arm according to claim 8, characterized in that, The end of the ejector pin (33) away from the pin channel (28) is connected to the fifth cylinder (35) through the ejector pin seat (34). A sixth cylinder (36) is provided on one side of the fifth cylinder (35), and the cylinder shaft of the sixth cylinder (36) is connected to the slide (27).

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