Cam feeding device

Abstract

The invention relates to the technical field of hardware machining equipment, and discloses a cam feeding device which comprises a feeding vibration disc, the feeding vibration disc communicates with a conveying channel used for conveying cams, a supporting base is arranged below the output end of the conveying channel, and a cam discharging positioning channel plate communicating with the conveying channel is installed at the upper end of the supporting base; a material pushing unit is arranged at one end of the cam discharging positioning channel plate, a cam positioning unit is arranged at the other end of the cam discharging positioning channel plate, a feeding seat is arranged on one side of the supporting seat, a cam clamping and pressing arm unit capable of moving up and down and left and right is arranged on the feeding seat and comprises a material taking plate assembly, and the lower end of the material taking plate assembly is positioned and pressed on the upper end face of a cam. Swinging hand clamping plates are arranged on the two sides of the material taking plate assembly. Middle arm positioning grooves are formed in the outer side faces of the lower ends of the hand clamping plates. According to the cam feeding device, manual alignment placement is not needed in the whole process, the production and assembly efficiency is greatly improved, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] This invention relates to the technical field of hardware processing equipment, and more specifically, to a cam-feeding device. Background Technology

[0002] The cabinet door hinge in the prior art is a connecting hardware for furniture doors. A cabinet door hinge typically includes a hinge middle arm 38 and a hinge forearm. The lower end of the hinge middle arm 38 has a cam positioning hole on one side, on which a cam 39 is positioned. The lower end of the cam 39 has a cam base 40, and the lower end of the cam base 40 has a positioning rib 41 corresponding to the cam positioning hole, as shown in the attached figure. Figure 7 As shown. This hinge structure connects the middle arm 38, cam 39 and hinge forearm by a pin. A spring is installed inside the hinge forearm, so that the spring abuts against the cam 39, thereby giving the hinge forearm a damping effect when it swings.

[0003] However, the aforementioned hinge structure usually requires manual assembly during the production and assembly process, especially in the process of positioning and installing the cam 39 within the hinge arm 38. However, the space within the hinge arm 38 is relatively small, making it difficult for a person's fingers to accurately place the cam 39 within the hinge arm 38. The cam 39 needs to be slowly pushed to allow the positioning rib 41 to embed into the cam positioning hole, resulting in a long assembly time for manual operation and very low efficiency. Summary of the Invention

[0004] In order to overcome the shortcomings of the existing technology, the present invention provides a cam-feeding device to solve the problems in the existing technology.

[0005] The technical solution adopted by the present invention to solve its technical problem is as follows: a cam feeding device, including a feeding vibratory plate, the feeding vibratory plate being connected to a feeding channel for conveying cams, a support base being provided below the output end of the feeding channel, a cam discharge positioning channel plate being installed on the upper end of the support base and connected to the feeding channel, a pushing unit being provided at one end of the cam discharge positioning channel plate and a cam positioning unit being provided at the other end, a feeding seat being provided on one side of the support base, a cam clamping arm unit being provided on the feeding seat that can move up, down, left, and right, the cam clamping arm unit including a picking plate assembly, the lower end of the picking plate assembly being positioned and pressed against the upper end face of the cam, swingable gripping plates being provided on both sides of the picking plate assembly, and a middle arm positioning groove being provided on the outer side of the lower end of the gripping plate.

[0006] The beneficial effects of this invention are that the cam is fed into the cam discharge positioning channel plate, and the cam is pushed to the cam positioning unit by the pushing unit. The cam is positioned in the cam discharge positioning channel plate by the cam positioning unit, so that the picking plate assembly can move over and press against the upper end face of the cam. At the same time, the cam is held by the clamps on both sides, so that the cam can be placed in the hinge arm at the designated position. At this time, it can be positioned on the hinge arm by the positioning groove of the arm, so that the cam can be accurately placed in the designated position in the hinge arm. The whole process does not require manual alignment and placement, which greatly improves the production assembly efficiency and reduces the labor intensity of manual labor.

[0007] Furthermore, a cam conveying groove is provided in the cam discharge positioning channel plate, and the middle part of one side of the cam discharge positioning channel plate is connected to the conveying channel. The conveying channel is connected to the cam conveying groove. The pushing unit includes a first cylinder installed on the support base. The cylinder shaft of the first cylinder is connected to a push rod, and the push rod passes through one end of the cam conveying groove.

[0008] With the above-mentioned further structure, the cam enters the cam conveying groove from the material conveying channel, and the push rod can easily push the cam to the cam positioning unit.

[0009] Furthermore, a contour groove is provided at the end of the cam conveying groove away from the push rod. The contour groove and the cam conveying groove are distributed perpendicularly to each other in a top view. The inner wall shape of the contour groove matches the shape of the outer surface of the cam. The cam positioning unit is provided at one end of the contour groove, and a limit groove is provided at the other end of the contour groove.

[0010] With the above-mentioned further structure, the inner wall shape of the contour groove is the same as the outer shape of the cam, so that the cam can maintain the moving angle and direction when it moves in the contour groove, so as to facilitate accurate clamping later.

[0011] Furthermore, the cam positioning unit includes a second cylinder connected and mounted on a support base. The cylinder shaft of the second cylinder is connected to a push rod, which passes through a contour groove. A pressure head is provided on the side of the push rod near the contour groove, and the lower part of the pressure head is a clearance groove.

[0012] With the above-mentioned further structure, the second cylinder can drive the push rod to move, and the clearance groove can make the pressure head press on the cam base, further stabilizing and accurately controlling the movement angle of the cam, preventing deviation, and allowing the cam to be pushed into the limit groove at a specific angle to wait for the material pick-up plate assembly to pick it up.

[0013] Furthermore, a transverse plate seat is installed on the feeding seat, and a longitudinal plate seat is connected to the transverse plate seat via a first slide rail slider. The longitudinal plate seat is connected to a slider mounting plate via a second slide rail slider. A connecting plate is fixedly installed on the slider mounting plate. The material taking plate assembly is installed on the connecting plate. A third cylinder connected to the longitudinal plate seat is installed at one end of the transverse plate seat, and a fourth cylinder connected to the slide plate mounting plate is installed at the upper end of the longitudinal plate seat.

[0014] With the above-mentioned further structure, the longitudinal plate seat is pushed by the third cylinder, so that the longitudinal plate seat can move back and forth along the length direction of the transverse plate seat. The slide plate mounting plate can move back and forth along the length direction of the longitudinal plate seat under the drive of the fourth cylinder, so that the material picking plate assembly can move in multiple directions to pick up the cam in the limiting groove.

[0015] Furthermore, the material handling plate assembly includes a fixing block, one side of which is mounted on a connecting plate, and the other side is integrally provided with a pressure rod. A hinge hole is provided between the fixing block and the pressure rod. Both sides of the gripper plate are provided with hinge ears located in the hinge holes. A hinge shaft passes through the hinge ears and is disposed through the material handling plate assembly and the two gripper plates.

[0016] With the above-described further structure, the gripper plates on both sides can swing between the fixed block and the pressure bar, while the pressure bar can press on the cam to accurately grip the cam. This structure can better grip small parts.

[0017] Furthermore, a spring hole is provided at the lower part of the pressure rod, and a spring is installed through the spring hole. The two ends of the spring abut against the clamping plates on both sides.

[0018] With the above-described further structure, the lower ends of the grippers on both sides are open when the grippers are in the reset state, so that the grippers on both sides can be placed on both sides of the cam for gripping.

[0019] Furthermore, a cylinder connecting plate is provided above the connecting plate and mounted on the slider mounting plate. A fifth cylinder is mounted on the cylinder connecting plate, and a wedge is connected to the cylinder shaft at the lower end of the fifth cylinder. The wedge is located above the gripping plates on both sides.

[0020] With the above-mentioned further structure, by moving the wedge, the wedge presses against the space between the upper ends of the two clamping plates, so that the lower ends of the two clamping plates clamp the cam. Under the action of the wedge, after clamping the cam, it can prevent the two clamping plates from loosening. Moreover, the clamping force at the lower ends of the two clamping plates can be adjusted by adjusting the position of the wedge, which is more suitable for clamping small parts.

[0021] Furthermore, the lower end of the pressure rod is provided with an arc-shaped groove that can accommodate the upper end face of the cam, and one end of the arc-shaped groove is provided with a protruding abutment.

[0022] With the above-mentioned further structure, before clamping the cam, after the pressure rod is pressed down, the cam can be placed in the arc-shaped groove, and at the same time, the abutment joint presses against the cam base. Then, the fifth cylinder drives the wedge block to move, so that the clamping plates on both sides clamp the cam. After the cam is moved to the hinge middle arm, the cam is moved down, so that the middle arm positioning groove is locked on both sides of the hinge middle arm, so that the positioning rib is embedded in the cam positioning hole. At the same time, the wedge block moves up, and the clamping plates on both sides open under the action of the spring, so that the cam can be released. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the cam-feeding device in this embodiment.

[0024] Figure 2 This is a three-dimensional structural diagram of the support base, the pushing unit, and the cam positioning unit in this embodiment.

[0025] Figure 3 This is a three-dimensional structural diagram of the cam-driven material discharge positioning channel plate in this embodiment.

[0026] Figure 4 This is a three-dimensional structural diagram of the clamping cam pressure arm unit in this embodiment.

[0027] Figure 5 This is an exploded structural diagram of the clamping cam pressure arm unit in this embodiment.

[0028] Figure 6 This is a three-dimensional structural diagram of the material handling plate assembly in this embodiment.

[0029] Figure 7 This is a three-dimensional structural diagram of the hinge arm and cam in a hinge in the prior art.

[0030] In the diagram: 1. Feeding vibratory feeder; 2. Conveying channel; 3. Support seat; 4. Pushing unit; 5. Cam positioning unit; 6. Cam clamping arm unit; 7. Cam discharge positioning channel plate; 8. First cylinder; 9. Push rod; 10. Cam conveying groove; 11. Contouring groove; 12. Limiting groove; 13. Push rod; 14. Press head; 15. Second cylinder; 16. Feeding seat; 17. Horizontal plate seat; 18. Vertical plate seat; 19. Slider mounting plate; 20. Third cylinder; 21. Fourth cylinder. 22. Connecting plate 23. Material picking plate assembly 24. Clamping plate 25. Hinge ear 26. Spring 27. Cylinder connecting plate 28. Fifth cylinder 29. Wedge block 20. Fixing block 30. Pressure rod 31. Hinge hole 32. Hinge shaft 33. Spring hole 34. Arc groove 35. Abutment joint 36. Middle arm positioning groove 37. Hinge middle arm 38. Cam 39. Cam base 40. Positioning rib 41. First slide rail slider 42. Second slide rail slider 43. Detailed Implementation

[0031] The specific embodiments of the present invention 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 the present invention, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] Combination Figures 1 to 7 The illustrated cam feeding device includes a feeding vibratory plate 1, which is connected to a feeding channel 2 for conveying a cam 39. A support base 3 is provided below the output end of the feeding channel 2. A cam discharge positioning channel plate 7, which is connected to the feeding channel 2, is installed on the upper end of the support base 3. A pushing unit 4 is provided at one end of the cam discharge positioning channel plate 7, and a cam positioning unit 5 is provided at the other end. A feeding seat 16 is provided on one side of the support base 3. A cam clamping arm unit 6, which can move up, down, left, and right, is provided on the feeding seat 16. The cam clamping arm unit 6 includes a picking plate assembly 23. The lower end of the picking plate assembly 23 is positioned and pressed against the upper end face of the cam 39. Swinging gripper plates 24 are provided on both sides of the picking plate assembly 23. The outer side of the end is provided with a middle arm positioning groove 37; in this embodiment, the cam 39 is fed into the cam discharge positioning channel plate 7, and the cam 39 is pushed to the cam positioning unit 5 by the pushing unit 4. The cam positioning unit 5 positions the cam 39 in the cam discharge positioning channel plate 7 so that the picking plate assembly 23 can move over and press against the upper end face of the cam 39. At the same time, the cam 39 is clamped by the grippers on both sides, so that the cam 39 can be placed in the hinge middle arm 38 at the designated position. At this time, it can be positioned on the hinge middle arm 38 by the middle arm positioning groove 37, so that the cam 39 can be accurately placed in the designated position in the hinge middle arm 38. The whole process does not require manual alignment and placement, which greatly improves the production assembly efficiency and reduces the labor intensity of manual labor.

[0033] It is worth noting that the hinge arm 38 in this embodiment can be fixed to the fixture.

[0034] In this embodiment, a cam conveying groove 10 is provided in the cam discharge positioning channel plate 7. The middle part of one side of the cam discharge positioning channel plate 7 is connected to the conveying channel 2. The conveying channel 2 is connected to the cam conveying groove 10. The pushing unit 4 includes a first cylinder 8 installed on the support base 3. The cylinder shaft of the first cylinder 8 is connected to a push rod 9. The push rod 9 passes through one end of the cam conveying groove 10. The cam 39 enters the cam conveying groove 10 from the conveying channel 2. The push rod 9 can easily push the cam 39 to the cam positioning unit 5.

[0035] Specifically, a contouring groove 11 is provided at the end of the cam conveying groove 10 away from the push rod 9. The contouring groove 11 and the cam conveying groove 10 are distributed perpendicularly to each other in the top view. The inner wall shape of the contouring groove 11 matches the shape of the outer surface of the cam 39. The cam positioning unit 5 is provided at one end of the contouring groove 11, and a limit groove 12 is provided at the other end of the contouring groove 11. The inner wall shape of the contouring groove 11 is the same as the outer shape of the cam 39, so that when the cam 39 moves in the contouring groove 11, it can maintain the moving angle and direction, so as to accurately clamp it later.

[0036] It is worth noting that the cam positioning unit 5 includes a second cylinder 15 connected and installed on the support base 3. The cylinder shaft of the second cylinder 15 is connected to a push rod 13, which passes through the contour groove 11. A pressure head 14 is provided on the side of the push rod 13 near the contour groove 11. The lower part of the pressure head 14 is a clearance groove. The second cylinder 15 can drive the push rod 13 to move. The clearance groove allows the pressure head 14 to press on the cam base 40, which further stabilizes and accurately moves the cam 39, preventing deviation. This allows the cam 39 to be pushed into the limiting groove 12 at a specific angle to wait for the material pick-up plate assembly 23 to pick it up.

[0037] A transverse plate seat 17 is installed on the feeding seat 16. The transverse plate seat 17 is connected to a longitudinal plate seat 18 via a first slide rail slider 42. The longitudinal plate seat 18 is connected to a slider mounting plate 19 via a second slide rail slider 43. A connecting plate 22 is fixedly installed on the slider mounting plate 19. The picking plate assembly 23 is installed on the connecting plate 22. A third cylinder 20 connected to the longitudinal plate seat 18 is installed at one end of the transverse plate seat 17. A fourth cylinder 21 connected to the slide plate mounting plate 19 is installed at the upper end of the longitudinal plate seat 18. The third cylinder 20 pushes the longitudinal plate seat 18, so that the longitudinal plate seat 18 can reciprocate along the length direction of the transverse plate seat 17. The slide plate mounting plate 19 can reciprocate along the length direction of the longitudinal plate seat 18 under the drive of the fourth cylinder 21, so that the picking plate assembly 23 can move in multiple directions to pick up the cam 39 in the limiting groove 12.

[0038] Preferably, the material handling plate assembly 23 includes a fixing block 30. One side of the fixing block 30 is mounted on the connecting plate 22, and the other side is integrally provided with a pressure rod 31. A hinge hole 32 is provided between the fixing block 30 and the pressure rod 31. Both sides of the gripper plate 24 are provided with hinge ears 25 located in the hinge holes 32. A hinge shaft 33 passes through the hinge ears 25. The hinge shaft 33 passes through the material handling plate assembly 23 and the two gripper plates 24. The gripper plates 24 on both sides can swing between the fixing block 30 and the pressure rod 31. At the same time, the pressure rod 31 can press on the cam 39 to accurately grip the cam 39. This structure can better grip small parts.

[0039] It is worth noting that a spring hole 34 is provided at the lower part of the pressure rod 31, and a spring 26 is installed inside the spring hole 34. The two ends of the spring 26 abut against the clamping plates 24 on both sides respectively. This allows the lower ends of the clamping plates 24 on both sides to be open when the clamping plates 24 are in the reset state, so that the clamping plates 24 on both sides can be placed on both sides of the cam 39 for clamping.

[0040] Specifically, a cylinder connecting plate 27 is installed above the connecting plate 22 and mounted on the slider mounting plate 19. A fifth cylinder 28 is installed on the cylinder connecting plate 27. A wedge block 29 is connected to the cylinder shaft at the lower end of the fifth cylinder 28. The wedge block 29 is located above the space between the two clamping plates 24. By moving the wedge block 29, the wedge block 29 presses against the space between the upper ends of the two clamping plates 24, so that the lower ends of the two clamping plates 24 clamp the cam 39. Under the action of the wedge block 29, after clamping the cam 39, the two clamping plates 24 can be prevented from loosening. Moreover, the clamping force at the lower end of the two clamping plates 24 can be adjusted by adjusting the position of the wedge block 29, which is more suitable for clamping small parts.

[0041] In this embodiment, the lower end of the pressure rod 31 is provided with an arc-shaped groove 35 that can accommodate the upper end face of the cam 39. One end of the arc-shaped groove 35 is provided with a protruding abutment 36. Before clamping the cam 39, after the pressure rod 31 is pressed down, the cam 39 can be placed in the arc-shaped groove 35, and the abutment 36 presses against the cam base 40. Then, the fifth cylinder 28 drives the wedge block 29 to move, so that the two clamping plates 24 clamp the cam 39. After the cam 39 is moved to the hinge middle arm 38, the cam 39 is moved down, so that the middle arm positioning groove 37 is locked on both sides of the hinge middle arm 38, so that the positioning rib 41 is embedded in the cam positioning hole. At the same time, the wedge block 29 moves up, and the two clamping plates 24 open under the action of the spring 26, so that the cam 39 can be released.

[0042] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention 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 the present invention, and these variations still fall within the protection scope of the present invention.

Claims

1. A cam feeding device, comprising a feeding vibratory plate (1), wherein the feeding vibratory plate (1) is connected to a feeding channel (2) for feeding a cam (39), and a support base (3) is provided below the output end of the feeding channel (2), characterized in that, The upper end of the support base (3) is equipped with a cam discharge positioning channel plate (7) that is connected to the material conveying channel (2). One end of the cam discharge positioning channel plate (7) is provided with a pushing unit (4) and the other end is provided with a cam positioning unit (5). A feeding seat (16) is provided on one side of the support base (3). A cam clamping arm unit (6) that can move up, down, left and right is provided on the feeding seat (16). The cam clamping arm unit (6) includes a picking plate assembly (23). The lower end of the picking plate assembly (23) is positioned and pressed against the upper end surface of the cam (39). Swingable gripper plates (24) are provided on both sides of the picking plate assembly (23). A middle arm positioning groove (37) is provided on the outer side of the lower end of the gripper plate (24).

2. The cam-feeding device according to claim 1, characterized in that, The cam discharge positioning channel plate (7) is provided with a cam conveying groove (10). The middle part of one side of the cam discharge positioning channel plate (7) is connected to the conveying channel (2). The conveying channel (2) is connected to the cam conveying groove (10). The pushing unit (4) includes a first cylinder (8) installed on the support base (3). The cylinder shaft of the first cylinder (8) is connected to a push rod (9). The push rod (9) passes through one end of the cam conveying groove (10).

3. The cam-feeding device according to claim 2, characterized in that, The cam conveying groove (10) is provided with a contour groove (11) at one end away from the push rod (9). The contour groove (11) and the cam conveying groove (10) are distributed perpendicularly to each other in the top view. The inner wall shape of the contour groove (11) matches the shape of the outer surface of the cam (39). The cam positioning unit (5) is provided at one end of the contour groove (11), and the other end of the contour groove (11) is provided with a limit groove (12).

4. The cam-feeding device according to claim 3, characterized in that, The cam positioning unit (5) includes a second cylinder (15) connected to the support base (3). The cylinder shaft of the second cylinder (15) is connected to a push rod (13). The push rod (13) passes through the contour groove (11). A pressure head (14) is provided on the side of the push rod (13) near the contour groove (11). The lower part of the pressure head (14) is a clearance groove.

5. The cam-feeding device according to claim 1, characterized in that, A transverse plate seat (17) is installed on the feeding seat (16). The transverse plate seat (17) is connected to a longitudinal plate seat (18) via a first slide rail slider (42). The longitudinal plate seat (18) is connected to a slider mounting plate (19) via a second slide rail slider (43). A connecting plate (22) is fixedly installed on the slider mounting plate (19). The material taking plate assembly (23) is installed on the connecting plate (22). A third cylinder (20) connected to the longitudinal plate seat (18) is installed at one end of the transverse plate seat (17). A fourth cylinder (21) connected to the slide plate mounting plate (19) is installed at the upper end of the longitudinal plate seat (18).

6. The cam-feeding device according to claim 5, characterized in that, The material handling plate assembly (23) includes a fixing block (30). One side of the fixing block (30) is mounted on the connecting plate (22), and the other side is integrally provided with a pressure rod (31). A hinge hole (32) is provided between the fixing block (30) and the pressure rod (31). Both sides of the clamping plate (24) are provided with hinge ears (25) located in the hinge holes (32). A hinge shaft (33) is passed through the hinge ears (25). The hinge shaft (33) is disposed through the material handling plate assembly (23) and the two clamping plates (24).

7. The cam-feeding device according to claim 6, characterized in that, The lower part of the pressure rod (31) is provided with a spring hole (34), and a spring (26) is installed in the spring hole (34). The two ends of the spring (26) abut against the clamping plates (24) on both sides respectively.

8. A cam-feeding device according to claim 6, characterized in that, Above the connecting plate (22) is a cylinder connecting plate (27) mounted on the slider mounting plate (19). A fifth cylinder (28) is mounted on the cylinder connecting plate (27). A wedge (29) is connected to the cylinder shaft at the lower end of the fifth cylinder (28). The wedge (29) is located above the clamping plates (24) on both sides.

9. A cam-feeding device according to claim 8, characterized in that, The lower end of the pressure rod (31) is provided with an arc groove (35) that can accommodate the upper end face of the cam (39), and one end of the arc groove (35) is provided with a protruding abutment (36).

Images