Gear type bending device

Abstract

The utility model discloses a gear type bending device which comprises an upper die base, a lower die base, a movable plate, a positioning mechanism and a side bending mechanism, the movable plate is arranged between the upper die base and the lower die base, the positioning mechanism comprises a supporting table and a positioning protruding block, the supporting table is installed on the movable plate, the positioning protruding block is installed on the bottom end face of the upper die base, and the side bending mechanism is arranged on the lower die base. The side bending mechanism comprises a gear, a bending block and a rack guide rail, the gear is rotationally installed on the side face of the supporting table, the bending block is fixedly connected to the side face of the gear, and the bottom of the rack guide rail penetrates through the movable plate and is installed on the lower die base; the side portion of the material is bent in the mode that the gear, the bending block and the rack guide rail structure are matched, the material piece and the bending block can be bent under the condition that motion friction does not exist, then the problem that material piece grinding cracks occur in the material piece bending process can be effectively solved, and compared with an existing bending device, the material piece bending device has the advantages of being simple in structure and convenient to use. The bending quality of the equipment is high, and the high-quality requirement of customers on products can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of bending equipment, in particular to a gear-type bending device. Background Art

[0002] The titanium alloy mobile phone metal frame is an indispensable accessory for mobile phone production. In the existing production process of titanium alloy mobile phone metal frames, most are processed and produced by a bending machine. As customers' quality requirements for products are getting higher and higher, there are abrasion marks on the appearance of the material during the processing of the existing bending machine, which cannot meet the high-quality requirements of customers for products. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a gear-type bending device, aiming to solve the problems mentioned above.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A gear-type bending device includes an upper die base and a lower die base located at the bottom of the upper die base, and further includes:

[0006] A movable plate is arranged between the upper die base and the lower die base. An elastic telescopic device is installed between the bottom end of the movable plate and the lower die base for the movable plate to move up and down.

[0007] A positioning mechanism includes a support table and a positioning convex block. The support table is installed on the top end surface of the movable plate, and the positioning convex block is installed on the bottom end surface of the upper die base.

[0008] A side bending mechanism includes a gear, a bending block, and a rack guide rail. The gear is rotatably installed on the side surface of the support table, the bending block is fixedly connected to the side surface of the gear, the bottom of the rack guide rail penetrates through the movable plate and is installed on the lower die base, and the gear meshes with the rack guide rail for transmission.

[0009] Wherein, the bending block is configured such that when the upper die base presses the movable plate down to the top position of the lower die base, the gear rotates along the rack guide rail to drive the bending block to rotate, and the bending block can complete the side bending of the material on the support table.

[0010] Preferably, the elastic telescopic device is a nitrogen spring cylinder.

[0011] Preferably, a lower support plate is installed on the bottom end surface of the lower die base. The bottom end surface of the nitrogen spring cylinder is installed on the top end surface of the lower support plate, and the top end surface of the nitrogen spring cylinder is installed on the bottom end surface of the movable plate.

[0012] Preferably, the number of the side bending mechanisms is at least two, and at least two side bending mechanisms are arranged on the side surface of the support table in a mirror image manner.

[0013] Preferably, the gear is a sector gear.

[0014] Preferably, an opening groove for the rack guide rail to pass through is formed on the movable plate, and the rack guide rail penetrates through the movable plate through the opening groove.

[0015] Preferably, a limiting column is installed on one side of the top end surface of the movable plate.

[0016] Preferably, a guiding column is installed on one side of the bottom end surface of the upper die base, a guiding hole adapted to the guiding column is formed on the movable plate, and the bottom end of the guiding column is inserted into the interior of the guiding hole.

[0017] Preferably, a guiding post is installed on one side of the top end surface of the lower die base, a guiding groove adapted to the guiding post is formed on the movable plate, and the top end of the guiding post is inserted into the interior of the guiding groove.

[0018] Preferably, a limiting member is installed on the top end surface of the lower die base.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of the present utility model are as follows:

[0020] In the present utility model, the side bending of the material is carried out by the cooperation of the gear, the bending block and the rack guide rail structure, so that the material sheet and the bending block can be bent without moving friction, thereby effectively solving the problem of abrasion marks on the material sheet during the bending process of the material sheet. Compared with the existing bending equipment, the bending quality of this equipment is higher and can meet the high-quality requirements of customers for products. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the present utility model;

[0022] Figure 2 is a schematic diagram of the gear in the present utility model;

[0023] Figure 3 is a schematic diagram of the gear rotating clockwise in the present utility model;

[0024] Figure 4 is a schematic working diagram of the upper die base pressing down to the top of the limiting column in the present utility model;

[0025] Figure 5 is a schematic working diagram of the movable plate pressing down to the top of the lower die base in the present utility model.

[0026] Markings in the figure: 1. Upper die holder; 2. Lower die holder; 3. Movable plate; 4. Elastic telescopic device; 5. Support platform; 6. Positioning bump; 7. Gear; 8. Bending block; 9. Rack guide; 10. Limit post; 11. Guide pin; 12. Guide post; 13. Limiting part; 14. Upper clamping plate; 15. Lower supporting plate; 16. Support cushion block; 17. Object workpiece; 18. Bent object workpiece. Detailed implementation

[0027] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0028] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0029] Refer to Figures 1 - 3 , a gear-type bending device for the processing of titanium alloy mobile phone metal frames. The bending device includes an upper die holder 1, a lower die holder 2, a movable plate 3, a positioning mechanism, a limit post 10, and a side bending mechanism, where:

[0030] A driving mechanism is provided at the top of the upper die holder 1, and an upper clamping plate 14 is provided at the bottom. The driving mechanism can drive the upper die holder 1 to move downward;

[0031] The lower die holder 2 is located at the bottom of the upper die holder 1. The downward-moving upper die holder 1 cooperates with the lower die holder 2 with a fixed bottom position to process the material;

[0032] The movable plate 3 is arranged between the upper die holder 1 and the lower die holder 2. The movable plate 3 changes its vertical position between the upper die holder 1 and the lower die holder 2 through an elastic device. For example, an elastic telescopic device 4 is installed between the bottom end of the movable plate 3 and the lower die holder 2, and the elastic telescopic device 4 can be a nitrogen spring cylinder. The number of elastic telescopic devices 4 is at least one ( Figure 1 the number of elastic telescopic devices 4 is shown as two in

[0033] The positioning mechanism is used to fix the position of the material. The positioning mechanism includes a support table 5 and a positioning convex block 6. The support table 5 is installed on the top surface of the movable plate 3. A support column body is fixedly connected to the bottom surface of the support table 5. The support table 5 is fixedly installed on the top surface of the movable plate 3 through the support column body. The positioning convex block 6 is installed on the bottom surface of the upper die base 1. The position of the positioning convex block 6 and the position of the support table 5 are in the same vertical orientation. When the upper die base 1 presses down towards the lower die base 2, the positioning convex block 6 can fall into the processing space on the top of the support table 5, so that the positioning convex block 6 can position the material on the support table 5, facilitating the subsequent bending processing operation;

[0034] The limit column 10 is installed on one side of the top surface of the movable plate 3, and the limit column 10 is also located between the lower die base 2 and the upper die base 1; when the upper die base 1 presses down, through the limiting action of the limit column 10, the bottom surface of the upper die base 1 can be abutted against the top surface of the limit column 10 (as Figure 4 shown). At this time, the positioning convex block 6 is located inside the support table 5, and the positioning of the material inside the support table 5 can be completed. Moreover, the limiting action of the limit column 10 plays a protective role for the support table 5, avoiding the situation of being crushed by the downward pressure; in addition, when the upper die base 1 continues to press down, the movable plate 3 and the overall equipment on the movable plate 3 can be moved downward through the limit column 10;

[0035] The side bending machine is used to bend the side part of the material. In order to be able to bend both sides of the material on the support table 5, the number of side bending mechanisms is set to at least two, and at least two side bending mechanisms are arranged in a mirror image on the side surface of the support table 5;

[0036] Regarding the specific structure of the side bending mechanism, since at least two side bending mechanisms are completely the same and arranged in a mirror image, only one of the side bending mechanisms is described in detail below, and the other side bending mechanism arranged in a mirror image will not be elaborated in detail;

[0037] The side bending mechanism includes a gear 7, a bending block 8 and a rack guide 9; the gear 7 is a sector gear, and the gear 7 is rotatably installed on the side surface of the support table 5. The bending block 8 is fixedly connected to the side surface of the gear 7. An opening groove for the rack guide 9 to pass through is formed on the movable plate 3. The rack guide 9 passes through the movable plate 3 through the opening groove. The bottom of the rack guide 9 passes through the movable plate 3 and is installed on the lower die base 2. The gear 7 is meshed with the rack guide 9 for transmission;

[0038] When the upper die base 1 presses down towards the lower die base 2 and bends the material on the support table 5, the upper die base 1 makes the movable plate 3 and the overall equipment including the support table 5 on the movable plate 3 move towards the lower die base 2 through the limit column 10. At this time, the gear 7 can rotate clockwise along the track direction of the rack guide 9 (refer toFigures 2 - 3 As shown, the clockwise rotating gear 7 can drive the bending block 8 to rotate clockwise; regarding the position setting of the bending block 8 on the gear 7, specifically, the bending block 8 can be configured such that when the upper die holder 1 presses the movable plate 3 down to the top position of the lower die holder 2, the gear 7 rotates along the rack guide 9 to drive the bending block 8 to rotate, and the bending block 8 can complete the side bending of the material on the support table 5; referring to Figure 5 As shown, when the bottom end surface of the movable plate 3 abuts against the top of the lower die holder 2, at this time, the gear 7 and the bending block 8 rotate clockwise to the maximum angle to complete the bending of the material on the support table 5 (referring to Figure 2 As shown, the object workpiece 17 is bent from a horizontal state into a U-shaped bent object workpiece 18);

[0039] In this embodiment, by means of the structural cooperation of the gear 7, the bending block 8 and the rack guide 9 for the side bending of the material, the material sheet can be bent with the bending block 8 without moving friction, thereby effectively solving the problem of material sheet abrasion marks during the bending process of the material sheet. Compared with the existing bending equipment, the bending quality of this equipment is higher, which can meet the high-quality requirements of customers, and the size of the processed material is stable, and the mass production is relatively reliable.

[0040] In a possible embodiment, as Figure 1 and Figure 4 As shown, in order to enable the positioning convex block 6 to accurately fall onto the support table 5 to ensure the accuracy of mold closing, a guiding post 11 is installed on one side of the bottom end surface of the upper die holder 1, a guiding hole adapted to the guiding post 11 is opened on the movable plate 3, and the bottom end of the guiding post 11 is inserted into the interior of the guiding hole, so as to realize the accuracy of mold closing between the upper die holder 1 and the movable plate 3 through the mutual cooperation and guiding of the guiding post 11 and the guiding hole.

[0041] In a possible embodiment, as Figure 1 As shown, a lower support plate 15 is installed on the bottom end surface of the lower die holder 2, a support cushion block 16 is installed on the top end of the lower support plate 15, the number of the support cushion blocks 16 is several, the top end surface of the support cushion block 16 is fixedly installed on the bottom end surface of the lower die holder 2, the bottom end surface of the nitrogen spring cylinder is installed on the top end surface of the lower support plate 15, and the top end surface of the nitrogen spring cylinder is installed on the bottom end surface of the movable plate 3;

[0042] In this embodiment, through the mutual cooperation of the lower support plate 15 and the support cushion block 16, the lower support plate 15 can support the lower die holder 2, and there is a space for installing the nitrogen spring cylinder between the lower support plate 15 and the lower die holder 2, which is convenient for the installation of the nitrogen spring cylinder.

[0043] In a possible embodiment, as Figure 1As shown, a guide post 12 is installed on one side of the top surface of the lower die base 2, and a guide groove adapted to the guide post 12 is formed on the movable plate 3. The top end of the guide post 12 is inserted into the interior of the guide groove;

[0044] In this embodiment, through the mutual cooperation of the guide post 12 and the guide groove, the movable plate 3 moving towards the lower die base 2 can be guided.

[0045] In a possible embodiment, as Figure 4 and Figure 5 shown, a limiting member 13 is installed on the top surface of the lower die base 2. When the upper die base 1 presses down towards the lower die base 2, the upper die base 1 drives the movable plate 3 and the overall equipment on the movable plate 3 to move towards the lower die base 2. At this time, the limiting member 13 is located between the movable plate 3 and the lower die base 2, and can play a role in limiting the downward movement of the movable plate 3.

Claims

1. A gear-type bending device, comprising an upper die base (1) and a lower die base (2) located at the bottom of the upper die base (1), characterized in that: Also includes: A movable plate (3) is arranged between the upper die base (1) and the lower die base (2); an elastic telescopic device (4) is installed between the bottom end of the movable plate (3) and the lower die base (2) for allowing the movable plate (3) to move up and down; A positioning mechanism, comprising a support platform (5) and a positioning protrusion (6), wherein the support platform (5) is mounted on the top end surface of the movable plate (3), and the positioning protrusion (6) is mounted on the bottom end surface of the upper die seat (1); The side bending mechanism comprises a gear (7), a bending block (8) and a rack guide rail (9), wherein the gear (7) is rotatably mounted on the side of the support platform (5), the bending block (8) is fixedly connected to the side of the gear (7), the bottom of the rack guide rail (9) passes through the movable plate (3) and is mounted on the lower die base (2), and the gear (7) and the rack guide rail (9) are meshed and transmitted; The bending block (8) is configured such that when the upper die base (1) presses the movable plate (3) down to the top position of the lower die base (2), the gear (7) rotates along the rack guide rail (9) to drive the bending block (8) to rotate, and the bending block (8) can complete the side bending of the material on the support platform (5).

2. The gear-type bending device according to claim 1, characterized in that: The elastic expansion and contraction device is a nitrogen spring cylinder.

3. The gear-type bending device according to claim 2, characterized in that: A lower support plate (15) is mounted on the bottom end surface of the lower die base (2), the bottom end surface of the nitrogen spring cylinder is mounted to the top end surface of the lower support plate (15), and the top end surface of the nitrogen spring cylinder is mounted to the bottom end surface of the movable plate (3).

4. The gear-type bending device according to claim 1, characterized in that: The number of the side bending mechanisms is at least two, and at least two of the side bending mechanisms are arranged on the side surface of the support platform (5) in a mirror-image manner.

5. The gear-type bending device according to claim 4, characterized in that: The gear (7) is a sector gear.

6. The gear-type bending device according to any one of claims 1 to 4, characterized in that: The movable plate (3) is provided with an open slot for the rack guide rail (9) to pass through, and the rack guide rail (9) passes through the movable plate (3) through the open slot.

7. The gear-type bending device according to any one of claims 1 to 4, characterized in that: A limiting column (10) is installed on one side of the top end surface of the movable plate (3).

8. The gear-type bending device according to any one of claims 1 to 4, characterized in that: A guide column (11) is installed on one side of the bottom end surface of the upper die seat (1), and a guide opening matched with the guide column (11) is opened on the movable plate (3), and the bottom end of the guide column (11) is inserted into the inside of the guide opening.

9. The gear-type bending device according to any one of claims 1 to 4, characterized in that: A guide column (12) is installed on one side of the top end surface of the lower die base (2), and a guide groove matched with the guide column (12) is opened on the movable plate (3), and the top end of the guide column (12) is inserted into the inside of the guide groove.

10. The gear-type bending device according to any one of claims 1 to 4, characterized in that: A limiting member (13) is installed on the top end surface of the lower die base (2).

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