A hinge trimming device

Abstract

The application discloses a hinge trimming device, which comprises a rack, a trimming mechanism, a top-pressing mechanism, a loading turntable, a feeding mechanism and a primary driving module, a plurality of loading grooves for fixing the hinge are arranged in a ring shape on the outer circumferential surface of the loading turntable, the top-pressing mechanism is used for top-pressing and fixing the hinge on the loading turntable, one side end of the loading turntable is provided with a driving gear arranged on the same shaft as the loading turntable, the primary driving module is used for driving the synchronous rotation of the loading turntable and the driving gear, the feeding mechanism is used for feeding the hinge to the loading groove of the loading turntable one by one, the trimming mechanism is used for trimming the hinge on the loading turntable, and the top-pressing mechanism comprises a driven gear, a top-pressing turntable, a top-pressing spring and a top-pressing block, the driven gear and the top-pressing turntable are arranged on the same shaft, the top-pressing spring is used for elastically pushing the connecting shaft through the top-pressing block, so that the top-pressing turntable on the connecting shaft can be top-pressed and fixed to the hinge on the loading turntable.

Description

Technical Field

[0001] This invention relates to the technical field of hinge trimming, and in particular to a hinge trimming device. Background Technology

[0002] After the forming process, hinges require a trimming process to remove excess waste material, ensuring the accuracy of subsequent assembly processes. However, the traditional trimming process is generally done manually, with operators grinding and trimming each formed hinge one by one using a belt sander. The degree of trimming usually relies entirely on the operator's experience. Furthermore, each hinge has processing errors during production, so the operator cannot guarantee that the trimming accuracy of each hinge is within the acceptable range. This results in inconsistent finished product quality and low processing efficiency.

[0003] Therefore, based on the above-mentioned technical problems, this application proposes a hinge trimming device with stable finished product quality and high processing efficiency. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a hinge trimming device with stable processing and high processing efficiency.

[0005] To achieve the above objectives, the present invention provides a hinge trimming device, comprising a frame, a trimming mechanism, and a pressing mechanism, a loading turntable, a feeding mechanism, and a primary drive module mounted on the frame. The loading turntable has a plurality of loading slots arranged annularly on its outer circumference for hinges to engage and fix. The pressing mechanism is used to press and fix the hinges at the processing station of the loading turntable. The loading turntable is rotatably connected to the frame via a pre-set rotating shaft, and one end of the rotating shaft is connected to the primary drive module. A drive gear is provided on one side of the loading turntable, arranged on the same axis as the loading turntable. The primary drive module is used to drive the synchronous rotation of the loading turntable and the drive gear via the rotating shaft. The feeding mechanism is used to feed the hinges one by one to the loading turntable. On the loading slot of the material turntable, the trimming mechanism is used to trim the hinges on the processing station of the material turntable. The pressing mechanism includes a driven gear, a pressing turntable, at least one pressing spring, and at least one pressing block. The driven gear and the pressing turntable are rotatably mounted on the frame via a pre-set connecting shaft, and the driven gear and the pressing turntable are arranged coaxially. The driven gear meshes with the driving gear, and the rotation centers of the driven gear and the driving gear are located on the same horizontal straight line. One end of the pressing spring is fixedly mounted on the frame, and the other end is connected to the pressing block. The pressing spring is used to elastically push the connecting shaft through the pressing block, so that the pressing turntable on the connecting shaft can press and fix the hinges on the processing station of the material turntable.

[0006] Furthermore, the frame consists of a base and two vertically arranged mounting plates. The mounting plates are formed with through-hole processing grooves, mounting grooves, and mounting holes. The processing grooves are used to expose the processing station of the loading turntable, so that the trimming mechanism can trim the hinges on the processing station of the loading turntable. The mounting grooves are used for positioning and mounting the top pressing mechanism, and the mounting holes are used for positioning and mounting the rotating shaft.

[0007] Furthermore, the mounting plate is also formed with a fixing groove for mounting the top pressing mechanism. Both the fixing groove and the top pressing block are T-shaped, and the length of the flat end of the fixing groove is greater than the length of the flat end of the top pressing block. The tail end of the fixing groove is connected to the top pressing spring, and the flat end of the top pressing block can slide back and forth horizontally within the flat end of the fixing groove.

[0008] Furthermore, a primary arc-shaped groove is formed on the flat end of the fixed groove, and a secondary arc-shaped groove is formed on the flat end of the top pressing block. The primary arc-shaped groove and the secondary arc-shaped groove together form a floating groove that matches the shape of the connecting shaft. The connecting shaft is rotatably mounted on the floating groove, and the diameter of the floating groove is slightly larger than or equal to the diameter of the connecting shaft.

[0009] Furthermore, the frame is provided with a material support component, which is used to cooperate with the rotation of the loading turntable so that each hinge is fully engaged in the loading slot of the loading turntable.

[0010] Furthermore, the feeding mechanism includes a conveying slide and a vibrator. One end of the conveying slide is connected to the feeding station of the loading turntable, and the other end is connected to a pre-set feeder. The conveying slide is used to transport the hinges output by the feeder one by one to the feeding station of the loading turntable. The vibrator is set at the bottom of the conveying slide and is used to prevent the hinges on the conveying slide from becoming blocked.

[0011] The present invention adopts the above-described solution, and its beneficial effects are as follows: After the hinge has undergone the previous manufacturing process, one end of the hinge may have burrs, uncut edges, or other excess material. Traditionally, this is addressed by the operator using a belt sander or grinding tools to individually sand and trim the hinges. The degree of trimming largely depends on the operator's experience, resulting in low efficiency and low precision. In contrast, this embodiment incorporates a hinge trimming device. The hinges are engaged in a loading slot on the outer circumference of the loading turntable. A pressing mechanism, working at the processing station of the turntable, provides elastic pressing to fix the thickness of each hinge, ensuring stable processing in a relatively fixed state. Furthermore, the trimming mechanism trims the surfaces with excess material, ensuring that the processing degree of each hinge is within a preset range, improving finished product quality and precision, increasing processing efficiency, and reducing rework rates. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the hinge trimming device in this embodiment.

[0013] Figure 2 This is a front view of the hinge trimming device in this embodiment.

[0014] Figure 3 for Figure 2 A magnified schematic diagram of a portion of C in the image.

[0015] Figure 4 This is a front view of the hinge trimming device in this embodiment.

[0016] Figure 5 for Figure 4 A top-view diagram of point E in the diagram.

[0017] Figure 6 This is a schematic diagram of the frame structure in this embodiment.

[0018] Figure 7 This is a front view of the rack in this embodiment.

[0019] Figure 8 This is a schematic diagram of the hinge structure in this embodiment.

[0020] Among them, 1-frame, 11-base, 12-mounting plate, 121-fixing groove, 1211-first-stage arc groove, 122-processing groove, 123-mounting hole, 2-top pressing mechanism, 21-driven gear, 22-top pressing turntable, 23-top pressing spring, 24-top pressing block, 241-second-stage arc groove, 3-loading turntable, 31-loading groove, 4-drive gear, 5-feeding mechanism, 51-material conveying slide, 52-vibrator, 6-first-stage drive module, 7-material support component, 8-hinge, 9-free clearance. Detailed Implementation

[0021] To facilitate understanding of the present invention, a more complete description is given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0022] See appendix Figure 1-5 As shown, in this embodiment, a hinge trimming device includes a frame 1, a trimming mechanism, and a pressing mechanism 2, a loading turntable 3, a feeding mechanism 5, and a primary drive module 6 mounted on the frame 1. The outer circumferential surface of the loading turntable 3 has a plurality of loading slots 31 arranged in a ring for the hinges 8 to be engaged and fixed. The pressing mechanism 2 is used to process the loading turntable 3 (see attached diagram). Figure 3 The hinge 8 on the loading turntable 3 (as shown at point E) is fixed by top pressure. The loading turntable 3 is rotatably connected to the frame 1 via a pre-set rotating shaft, and one end of the rotating shaft is connected to the first-stage drive module 6. A drive gear 4 with the same shaft arrangement as the loading turntable 3 is provided on one side of the loading turntable 3 (the connection between the loading turntable 3 and the rotating shaft, and between the drive gear 4 and the rotating shaft, is preferably keyed). The first-stage drive module 6 is used to drive the synchronous rotation of the loading turntable 3 and the drive gear 4 via the rotating shaft. The feeding mechanism 5 is used to transport the hinges 8 one by one to the loading slot 31 of the loading turntable 3. The trimming mechanism is used to trim the hinges 8 on the processing station of the loading turntable 3 (see Appendix). Figure 2 (as shown at point D), specifically, after the hinge 8 has undergone the previous manufacturing process, point A of the hinge 8 (see Appendix) Figure 8 As shown, there may be burrs, uncut edges, and other excess material remaining on the hinges 8. The traditional approach is for the operator to use a belt sander or grinding tools to grind and trim each hinge 8 one by one. The degree of processing largely depends on the operator's experience, resulting in low processing efficiency and low processing accuracy. In contrast to the above-mentioned traditional method, this embodiment uses the hinge trimming device to engage the hinges 8 in the loading groove 31 on the outer circumference of the loading turntable 3. Furthermore, the pressing mechanism 2 works in conjunction with the processing station of the loading turntable 3 to press and fix the hinges 8, allowing the trimming mechanism to trim the surfaces of the hinges 8 with the aforementioned excess material. This ensures the degree of processing of each hinge 8 and improves processing accuracy.

[0023] See appendix Figure 6-7As shown, the frame 1 further comprises a base 11 and two vertically arranged mounting plates 12. The mounting plates 12 are formed with through-hole processing grooves 122, mounting grooves, and mounting holes 123. The processing grooves 122 expose the processing station of the loading turntable 3, allowing the trimming mechanism to trim the hinge 8 at the processing station of the loading turntable 3. The mounting grooves are used for positioning and mounting the top-pressing mechanism 2, and the mounting holes 123 are used for positioning and mounting the rotating shaft. A bearing is provided between the rotating shaft and the mounting hole 123. The base 11 is formed with a vertically penetrating discharge port (located below the loading turntable 3). A collection box (not shown in the figure) is placed at the discharge port. After the hinge 8 at the processing station of the loading turntable 3 completes its trimming, it rotates to a position below the loading turntable 3 as the loading turntable 3 rotates (see Appendix for discharge station). Figure 3 As shown at point F, the hinge 8 that has completed the trimming process is dislodged from the loading trough 31 by the action of gravitational potential energy. After passing through the above-mentioned discharge port, it falls into the collection box, so that the operator can transport the hinge 8 that has completed the trimming process in a unified manner and ensure the orderly progress of production.

[0024] See appendix Figure 4 As shown (one of the mounting plates 12 is hidden for easier display of the internal structure), in this embodiment, the pressing mechanism 2 includes a driven gear 21, a pressing turntable 22, at least one, preferably two, pressing springs 23 (nitrogen springs are preferred here), and at least one, preferably two, pressing blocks 24. The driven gear 21 and the pressing turntable 22 are rotatably mounted on the frame 1 via a pre-set connecting shaft, and the driven gear 21 and the pressing turntable 22 are arranged coaxially. The driven gear 21 meshes with the driving gear 4, and the rotation centers of the driven gear 21 and the driving gear 4 are located on the same horizontal straight line, i.e., the pressing... The turntable 22 rotates along with the loading turntable 3 (preferably, the transmission ratio of the driven gear 21 to the driving gear 4 is 1:1), thereby enabling the top-pressing turntable 22 to press and fix each hinge 8 at the processing station of the loading turntable 3; one end of the top-pressing spring 23 is fixedly mounted on the frame 1, and the other end is connected to the top-pressing block 24. The top-pressing spring 23 is used to elastically push the connecting shaft through the top-pressing block 24, so that the top-pressing turntable 22 on the connecting shaft can press and fix the hinge 8 at the processing station of the loading turntable 3, ensuring that the hinge 8 at the processing station of the loading turntable 3 can be in a stable state for trimming (see Appendix). Figure 5 As shown, the hinge 8 is subjected to the force of the top pressure turntable 22 as indicated by the solid arrow, and the reaction force of the loading turntable 3 as indicated by the hollow arrow, thereby achieving top pressure fixation, ensuring processing quality, improving yield, and reducing production costs.

[0025] It should be noted that the aforementioned top pressure spring 23 and top pressure block 24 are respectively arranged on the fixing groove 121 of the mounting plate 12, and the connecting shaft is mounted between the two mounting plates 12; secondly, due to mechanical errors and other factors during the manufacturing process, some hinges 8 have defects at point B (see Appendix). Figure 8 As shown, there are variations in thickness. If a fixed structure is used to fix the hinge 8 at the processing position of the loading turntable 3, the thickness at point B of the hinge 8 may be too large, causing the loading turntable 3 and the top pressure turntable 22 to jam, affecting the orderly progress of the trimming process. Through the elastic tendency of the aforementioned top pressure spring 23, the top pressure turntable 22 can move horizontally relative to the thickness at point B of the hinge 8 (see Appendix for the specific direction of movement). Figure 4 (As indicated by the double-headed arrows), to achieve elastic pressing and fixing of hinge 8 (see appendix). Figure 5 As shown, Figure 5 The structure of the key top pressure turntable 22 and the top pressure hinge 8 of the loading turntable 3 is hidden, ensuring stable processing of the hinge 8 by the trimming mechanism and reducing the rework rate.

[0026] See appendix Figure 3 , 6 As shown in Figure 7, the mounting plate 12 is further provided with a fixing groove 121 for mounting the top pressing mechanism 2. Both the fixing groove 121 and the top pressing block 24 have a T-shaped structure, and the fixing groove 121 has a flat end (see Appendix 7). Figure 7 The length of the top pressure block (as shown at b1) is greater than the flat end of the 24-piece top pressure block (see Appendix). Figure 3 The length dimension (as shown at b2) is designed to provide a clearance 9 (i.e., a moving distance for the top pressure block 24) for the elastic pushing of the top pressure spring 23; the tail end of the fixing groove 121 (see Appendix) Figure 7 (as shown at a1) is connected to one end of the top pressure spring 23, and the tail end of the top pressure block 24 (see Appendix) Figure 3 The top pressure block 24 (as shown at a2) is connected to the other end of the top pressure spring 23. The flat end of the top pressure block 24 can slide back and forth horizontally within the flat end of the fixed groove 121. A primary arc groove 1211 is formed on the flat end of the fixed groove 121, and a secondary arc groove 241 is formed on the flat end of the top pressure block 24. The primary arc groove 1211 and the secondary arc groove 241 together form a floating groove that matches the shape of the connecting shaft. The connecting shaft is rotatably mounted on the floating groove (a bearing is provided between the connecting shaft and the floating groove), and the diameter of the floating groove is slightly larger than or equal to the diameter of the connecting shaft. The floating groove increases the contact area with the connecting shaft, allowing the top pressure spring 23 to better push the connecting shaft with its elastic potential energy. This enables the top pressure turntable 22 to elastically press and fix the thickness at point B of each hinge 8, improving the stability of the trimming process.

[0027] See appendix Figure 4 As shown, furthermore, a material support component 7 is provided on the frame 1. The material support component 7 is used to cooperate with the rotation of the loading turntable 3, so that each hinge 8 is fully engaged in the loading slot 31 of the loading turntable 3. Specifically, when the feeding mechanism 5 conveys the hinges 8 one by one to the feeding station of the loading turntable 3 (see Appendix), Figure 4 When the material is in the loading groove 31 (as shown at point G) and without the aforementioned material support 7, there may still be a gap 9 between the hinge 8 and the bottom surface of the loading groove 31 (see Appendix). Figure 3 As shown, the presence of the clearance 9 causes the part of the hinge 8 that needs to be processed to exceed the cutting range of the trimming mechanism, affecting the normal trimming processing of the hinge 8 by the trimming mechanism. This results in the output hinge 8 being of unqualified quality and requiring rework, reducing production efficiency and increasing production costs. By setting the above-mentioned material support 7 in conjunction with the rotation of the loading turntable 3, each hinge 8 is completely engaged in the loading slot 31 of the loading turntable 3. This ensures that when the hinge 8 rotates to the processing position of the loading turntable 3, the cutting range of the trimming mechanism can cover the surface of the hinge 8 that needs to be processed, completing the trimming processing of the hinge 8, reducing rework rate and production costs, and improving production efficiency.

[0028] The trimming mechanism in this embodiment is not specifically described, but please refer to the appendix. Figure 2 Point D indicates the working position of the tool module of the trimming mechanism. The trimming mechanism is also equipped with a secondary drive module for driving the tool module to rotate and a bracket. The tool module is used to trim the hinge 8 on the processing station of the loading turntable 3. The secondary drive module is connected to the tool module through a preset output shaft. Both the tool module and the secondary drive module are mounted on the bracket. The operator can adjust the degree of trimming of the hinge 8 on the processing station of the loading turntable 3 by the tool module according to the relative position of the bracket set according to the actual situation, so as to adapt to different specifications of hinge 8 and improve the processing adaptability range of the hinge trimming device in this embodiment.

[0029] See appendix Figure 1 , 2 As shown, the feeding mechanism 5 further includes a conveying slide 51 and a vibrator 52. One end of the conveying slide 51 is connected to the feeding station of the loading turntable 3, and the other end is connected to a pre-set feeder. The conveying slide 51 is used to convey the hinges 8 output by the feeder to the feeding station of the loading turntable 3 one by one. The vibrator 52 is set at the bottom of the conveying slide 51. The vibrator 52 is used to prevent the hinges 8 from getting blocked on the conveying slide 51, thereby ensuring that the hinges 8 can be neatly arranged on the conveying slide 51 and can be conveyed to the feeding station of the loading turntable 3 in an orderly manner, avoiding the impact on processing efficiency due to the blockage of some hinges 8.

[0030] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Any modifications or variations made by those skilled in the art, without departing from the scope of the present invention, using the disclosed technical content, are equivalent embodiments of the present invention. Therefore, all equivalent changes made based on the concept of the present invention without departing from the scope of the present invention should be covered within the protection scope of the present invention.

Claims

1. A hinge trimming device, characterized in that: The assembly includes a frame (1), a trimming mechanism, and a pressing mechanism (2), a loading turntable (3), a feeding mechanism (5), and a primary drive module (6) mounted on the frame (1). The loading turntable (3) has several loading slots (31) arranged in a ring on its outer circumference for hinges (8) to engage and fix. The pressing mechanism (2) is used to press and fix the hinges (8) on the processing station of the loading turntable (3). The loading turntable (3) rotates via a pre-set rotating shaft. The rotating shaft is attached to the frame (1) and one end of the rotating shaft is connected to the first-stage drive module (6). A drive gear (4) with the same shaft arrangement as the loading turntable (3) is provided on one side of the loading turntable (3). The first-stage drive module (6) is used to drive the loading turntable (3) and the drive gear (4) to rotate synchronously via the rotating shaft. The feeding mechanism (5) is used to transport the hinges (8) one by one to the loading slot (31) of the loading turntable (3). The trimming mechanism is used to trim the hinges. The hinge (8) at the processing station of the loading turntable (3) is trimmed. The top pressing mechanism (2) includes a driven gear (21), a top pressing turntable (22), at least one top pressing spring (23), and at least one top pressing block (24). The driven gear (21) and the top pressing turntable (22) are rotatably mounted on the frame (1) through a preset connecting shaft, and the driven gear (21) and the top pressing turntable (22) are arranged on the same axis. The driven gear (21) meshes with the driving gear (4) and the rotation center of the driven gear (4) is located on the same horizontal straight line. One end of the top pressure spring (23) is fixedly installed on the frame (1) and the other end is connected to the top pressure block (24). The top pressure spring (23) is used to elastically push the connecting shaft through the top pressure block (24) so ​​that the top pressure turntable (22) on the connecting shaft can press and fix the hinge (8) on the processing station of the loading turntable (3).

2. The hinge trimming device according to claim 1, characterized in that: The frame (1) consists of a base (11) and two vertically arranged mounting plates (12). The mounting plates (12) are formed with through processing grooves (122), mounting grooves and mounting holes (123). The processing grooves (122) are used to expose the processing position of the loading turntable (3) so that the trimming mechanism can trim the hinges (8) on the processing position of the loading turntable (3). The mounting grooves are used for positioning and mounting of the top pressing mechanism (2), and the mounting holes (123) are used for positioning and mounting of the rotating shaft.

3. A hinge trimming device according to claim 2, characterized in that: The mounting plate (12) is also formed with a fixing groove (121) for mounting the top pressing mechanism (2). The fixing groove (121) and the top pressing block (24) are both T-shaped, and the length of the flat end of the fixing groove (121) is greater than the length of the flat end of the top pressing block (24). The tail end of the fixing groove (121) is connected to the top pressing spring (23), and the flat end of the top pressing block (24) can slide back and forth in the horizontal direction within the flat end of the fixing groove (121).

4. A hinge trimming device according to claim 3, characterized in that: The fixed groove (121) has a first-level arc groove (1211) formed on its flat end, and the top pressure block (24) has a second-level arc groove (241) formed on its flat end. The first-level arc groove (1211) and the second-level arc groove (241) together form a floating groove that matches the shape of the connecting shaft. The connecting shaft is rotatably mounted on the floating groove, and the diameter of the floating groove is slightly larger than or equal to the diameter of the connecting shaft.

5. A hinge trimming device according to claim 1, characterized in that: The frame (1) is provided with a material support component (7), which is used to cooperate with the rotation of the loading turntable (3) so that each hinge (8) is fully engaged in the loading slot (31) of the loading turntable (3).

6. A hinge trimming device according to claim 1, characterized in that: The feeding mechanism (5) includes a conveying slide (51) and a vibrator (52). One end of the conveying slide (51) is connected to the feeding station of the loading turntable (3), and the other end is connected to a pre-set feeder. The conveying slide (51) is used to convey the hinges (8) output by the feeder to the feeding station of the loading turntable (3) one by one. The vibrator (52) is set at the bottom of the conveying slide (51). The vibrator (52) is used to prevent the hinges (8) on the conveying slide (51) from getting blocked.

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