Positioning and chamfering equipment for sheet metal part machining

Abstract

The utility model discloses positioning and chamfering equipment for sheet metal part machining, which relates to the technical field of sheet metal part chamfering and comprises a chamfering table, an angle-shaped positioning block is mounted on the chamfering table, an arc-shaped plate is arranged at the right upper end of the right-angle position of the angle-shaped positioning block, and an arc-shaped chamfering cutter with an integrally formed structure is arranged on the side wall of the arc-shaped plate. The lower end of the arc-shaped chamfering cutter is right opposite to the right-angle position of the angular positioning block, the lower end of the arc-shaped plate is fixedly connected with a rack plate, and a rack part is arranged on the rack plate. Two guide shafts are fixedly connected to the angle-shaped positioning block, the upper ends of the guide shafts movably penetrate through the arc-shaped plate, and the guide shafts are wrapped with reset springs. The right-angle end of the sheet metal part is cut through the arc-shaped chamfering cutter, chamfering of the sheet metal part is achieved in one step, and the arc-shaped chamfering cutter accurately controls the size of the chamfering radius. And a frosted layer arranged on the side wall of the arc-shaped chamfering cutter is used for polishing the chamfer, so that the chamfering quality of the sheet metal part is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of chamfering of sheet metal parts, and specifically relates to a positioning chamfering device for sheet metal part processing. Background Technique

[0002] Sheet metal is a comprehensive cold working process for metal sheets, including shearing, punching / cutting / combining, folding, welding, riveting, splicing, forming, etc. Sheet metal has the characteristics of light weight, high strength, electrical conductivity (can be used for electromagnetic shielding), low cost, and good mass production performance, and has been widely used in the fields of electronic appliances, communication, automotive industry, medical devices, etc. For example, in computer cases, mobile phones, and MP3 players, sheet metal is an essential component. With the increasingly wide application of sheet metal, the design of sheet metal parts has become a very important part of the product development process. Mechanical engineers must master the design techniques of sheet metal parts proficiently, so that the designed sheet metal not only meets the requirements of product functions and appearances, but also makes the stamping die manufacturing simple and low-cost;

[0003] According to the patent: A chamfering and grinding device for sheet metal parts, patent number: 202321186832.8, this patent includes a platform: a rectangular hole is opened in the middle of the upper side of the platform, a placing unit is arranged on the lower side of the platform, a fixing plate is fixedly connected to the upper side of the platform, an electric push rod I is fixedly connected to the lower side of the fixing plate, the lifting plate of the electric push rod I, an electric push rod II is fixedly connected to the front side of the lifting plate, a grinding block is fixedly connected to the front end of the electric push rod II, a conveyor belt is arranged on the upper side of the platform, and the placing unit includes a motor, the motor is arranged on the lower side of the platform, and a rotating shaft is fixedly connected to the upper output end of the motor. By setting the motor, the rotating shaft and the rotating plate, it is convenient to control the rotation of the sheet metal part on the rotating plate, and it is convenient to change the grinding position of the sheet metal part, so that the chamfers of the sheet metal part with multiple chamfers are ground, reducing the workload of the staff;

[0004] There are deficiencies: During the chamfering process of the sheet metal part of this patent, when chamfering and grinding the right-angle end, due to the requirements of the processing technology for the radius of the chamfer, it is difficult for manual operation to accurately control; and the chamfering and grinding takes a long time, and it is impossible to achieve one-step chamfering. To solve the above-mentioned problems, the utility model proposes a positioning chamfering device for sheet metal part processing. Content of the Utility Model

[0005] The purpose of the present utility model is to provide a positioning chamfering device for sheet metal parts processing. By using an arc chamfering cutter to cut the right-angle end of the sheet metal part, the chamfering of the sheet metal part can be achieved in one step, and the size of the chamfering radius can be accurately controlled by the arc chamfering cutter; and a frosted layer provided on the side wall of the arc chamfering cutter polishes the chamfer to ensure the chamfering quality of the sheet metal part, so as to solve the problems that in the process of chamfering the sheet metal part, when grinding and chamfering the right-angle end, due to the requirements of the processing technology for the radius of the chamfering part, it is difficult for manual operation to accurately control; and the grinding and chamfering takes a long time and the chamfering cannot be achieved in one step as mentioned in the above background technology.

[0006] To achieve the above object, the present utility model provides the following technical solution: A positioning chamfering device for sheet metal parts processing, including a chamfering table, an angular positioning block is installed on the chamfering table, an arc-shaped plate is provided directly above the right-angle position of the angular positioning block, an arc chamfering cutter with an integrally formed structure is provided on the side wall of the arc-shaped plate, and the lower end of the arc chamfering cutter is directly opposite to the right-angle position of the angular positioning block. The lower end of the arc-shaped plate is fixedly connected with a rack plate, and a rack portion is provided on the rack plate;

[0007] Two guide shafts are fixedly connected to the angular positioning block, and the upper ends of the guide shafts movably pass through the arc-shaped plate. A return spring is wrapped around the guide shafts, and the upper and lower ends of the return spring are respectively connected to the lower end of the arc-shaped plate and the upper end of the angular positioning block;

[0008] A rotating column is rotatably connected to the upper end of the angular positioning block. The upper end of the rotating column is fixedly connected with a mounting plate, and a hydraulic cylinder is installed at the lower end of the end of the mounting plate. The lower end of the piston rod of the hydraulic cylinder contacts the upper end of the arc-shaped plate;

[0009] A servo motor is installed on the angular positioning block, and a semi-gear is connected to the output shaft of the servo motor.

[0010] Preferably, a wedge-shaped groove is provided in the middle of the chamfering table, and a bidirectional lead screw is rotatably connected in the wedge-shaped groove. Two wedge-shaped blocks threadedly connected to the bidirectional lead screw are symmetrically provided in the wedge-shaped groove.

[0011] Preferably, a frosted layer is provided on the side wall of the arc chamfering cutter.

[0012] Preferably, a notch is provided on the side wall of the right-angle end of the angular positioning block.

[0013] Preferably, an arc-shaped corner groove is provided on the chamfering table, and the arc-shaped corner groove is located at the right-angle position of the angular positioning block.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model uses an arc chamfering cutter to cut the right-angle end of the sheet metal part, achieving one-step chamfering of the sheet metal part, and the arc chamfering cutter precisely controls the size of the chamfering radius; in addition, a frosted layer provided on the side wall of the arc chamfering cutter polishes the chamfer, ensuring the chamfer quality of the sheet metal part. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model Figure 1 ;

[0016] Figure 2 is a schematic structural diagram of the present utility model Figure 2 ;

[0017] Figure 3 is of the present utility model Figure 2 enlarged schematic structural diagram of part A;

[0018] Figure 4 is a schematic structural diagram of the arc plate of the present utility model;

[0019] Figure 5 is a schematic structural diagram of the angle-shaped positioning block of the present utility model;

[0020] Figure 6 is a schematic structural diagram of the polishing state of the present utility model.

[0021] In the figure: 1, chamfering table; 11, arc-shaped corner groove; 12, wedge-shaped groove; 13, bidirectional lead screw; 14, wedge-shaped block; 2, angle-shaped positioning block; 21, notch; 3, arc plate; 31, arc chamfering cutter; 32, rack plate; 321, rack portion; 4, guide shaft; 41, return spring; 5, rotating column; 51, mounting plate; 6, hydraulic cylinder; 7, servo motor; 71, half gear. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The present utility model provides a technical solution: As shown in Figure 1 and Figure 4 : A positioning and chamfering device for sheet metal part processing includes a chamfering table 1, an angle-shaped positioning block 2 is installed on the chamfering table 1, an arc plate 3 is provided at the upper right angle position of the angle-shaped positioning block 2, an arc chamfering cutter 31 with an integrally formed structure is provided on the side wall of the arc plate 3, and the lower end of the arc chamfering cutter 31 is directly opposite to the right angle position of the angle-shaped positioning block 2. The lower end of the arc plate 3 is fixedly connected to a rack plate 32, and a rack portion 321 is provided on the rack plate 32. The arc chamfering cutter 31 is used to cut and chamfer the right-angle end of the sheet metal part, precisely controlling the chamfering radius of the sheet metal part.

[0023] As shown in Figure 5As shown in the figure: Two guiding shafts 4 are fixedly connected to the angular positioning block 2, and the upper ends of the guiding shafts 4 movably pass through the arc-shaped plate 3. A return spring 41 is wrapped around the guiding shafts 4, and the upper and lower ends of the return spring 41 are respectively connected to the lower end of the arc-shaped plate 3 and the upper end of the angular positioning block 2. The guiding shafts 4 are used for the arc-shaped plate 3 to slide downwards and rise and reset through the elastic force of the return spring 41.

[0024] As Figure 1 shown in the figure: A rotating column 5 is rotatably connected to the upper end of the angular positioning block 2. The upper end of the rotating column 5 is fixedly connected with a mounting plate 51, and a hydraulic cylinder 6 is installed at the lower end of the end part of the mounting plate 51. The lower end of the piston rod of the hydraulic cylinder 6 contacts the upper end of the arc-shaped plate 3. The rotating column 5 is used for the hydraulic cylinder 6 to rotate and move away, so as to facilitate the grinding of the next chamfering position after the chamfering of the sheet metal part is completed.

[0025] As Figure 6 shown in the figure: A servo motor 7 is installed on the angular positioning block 2, and a half gear 71 is connected to the output shaft of the servo motor 7. When the half gear 71 meshes with the rack part 321, it drives the arc-shaped chamfering cutter 31 to descend, and when not meshing, it rises and resets through the elastic force of the return spring 41, thereby realizing the reciprocating up and down movement of the arc-shaped chamfering cutter 31.

[0026] As Figure 2 shown in the figure: A wedge-shaped groove 12 is provided in the middle of the chamfering table 1, and a bidirectional lead screw 13 is rotatably connected to the wedge-shaped groove 12. Two wedge-shaped blocks 14 symmetrically provided in the wedge-shaped groove 12 are threadedly connected to the bidirectional lead screw 13. By rotating the turntable connected to the end of the bidirectional lead screw 13, the wedge-shaped blocks 14 are driven to move towards each other, thereby clamping and positioning the sheet metal part, facilitating the arc-shaped chamfering cutter 31 to cut and chamfer the corners of the sheet metal part.

[0027] As Figure 4 shown in the figure: A grinding layer is provided on the side wall of the arc-shaped chamfering cutter 31. After the arc-shaped chamfering cutter 31 finishes cutting, the rack part 321 on the rack plate 32 meshes with the half gear 71. Driven by the start of the servo motor 7 and the elastic force of the return spring 41, the rack plate 32 reciprocates up and down, thereby polishing the cutting and chamfering part of the sheet metal part through the grinding layer.

[0028] As Figure 3 shown in the figure: A notch 21 is provided on the side wall of the right-angle end of the angular positioning block 2. When the arc-shaped chamfering cutter 31 descends to cut the sheet metal part for chamfering, the arc-shaped chamfering cutter 31 passes through the notch 21. The design of the notch 21 does not affect the descent and cutting of the arc-shaped chamfering cutter 31; an arc-shaped corner groove 11 is provided on the chamfering table 1, and the arc-shaped corner groove 11 is located at the right-angle position of the angular positioning block 2. The arc-shaped corner groove 11 is located directly below the notch 21, and the arc-shaped corner groove 11 satisfies the stroke of the arc-shaped chamfering cutter 31 for reciprocating up and down movement during polishing.

[0029] Specifically, first place the right-angle end of the sheet metal part aligned with the right-angle end of the angle-shaped positioning block 2, and then rotate the bidirectional lead screw 13 to drive the two wedge blocks 14 to move towards each other to clamp and position the sheet metal part;

[0030] Then start the hydraulic cylinder 6. Press down the arc-shaped plate 3 through the piston rod, and then drive the arc-shaped chamfering cutter 31 to cut and chamfer the right-angle part of the sheet metal part. The arc-shaped chamfering cutter 31 will pass through the notch 21, and the rack part 321 on the rack plate 32 meshes with the half gear 71. At this time, close the hydraulic cylinder 6, rotate the rotating column 5 to separate the piston rod from the contact with the arc-shaped plate 3, and then start the servo motor 7 to drive the half gear 71 to rotate, and then drive the engaged rack part 321 and the rack plate 32 to move downward. Due to the setting of the half gear 71, the half gear 71 rotates 180 degrees to disengage from the engagement, and the arc-shaped plate 3 is lifted under the elastic force of the return spring 41. Then, with the continuous rotation of the half gear 71, the up-and-down reciprocating movement of the arc-shaped plate 3 and the arc-shaped chamfering cutter 31 is realized. The chamfered part of the sheet metal part is polished by the abrasive layer provided on the side wall of the arc-shaped chamfering cutter 31. The present invention uses the cutting of the arc-shaped chamfering cutter 31 to achieve one-step chamfering of the sheet metal part, and the size of the chamfering radius can be accurately controlled by the arc-shaped chamfering cutter 31; and the abrasive layer provided on the side wall of the arc-shaped chamfering cutter 31 polishes the chamfer to ensure the chamfering quality of the sheet metal part.

Claims

1. A device for processing, positioning and chamfering of sheet metal parts, comprising a chamfering table (1), characterized in that: The chamfering platform (1) is installed with an angle positioning block (2), an arc plate (3) is provided at the upper end of the right angle position of the angle positioning block (2), an arc chamfering cutter (31) of an integrally formed structure is provided on the side wall of the arc plate (3), and the lower end of the arc chamfering cutter (31) is directly opposite to the right angle position of the angle positioning block (2), and the lower end of the arc plate (3) is fixedly connected with a rack plate (32), and the rack plate (32) is provided with a rack portion (321); Two guide shafts (4) are fixedly connected to the angle positioning block (2), and the upper ends of the guide shafts (4) movably pass through the arc plate (3). A return spring (41) is wrapped on the guide shaft (4), and the upper and lower ends of the return spring (41) are respectively connected to the lower end of the arc plate (3) and the upper end of the angle positioning block (2); The upper end of the angle positioning block (2) is rotatably connected to a rotating column (5), the upper end of the rotating column (5) is fixedly connected to a mounting plate (51), and a hydraulic cylinder (6) is mounted at the lower end of the end of the mounting plate (51), and the lower end of the piston rod of the hydraulic cylinder (6) contacts the upper end of the arc plate (3); A servo motor (7) is installed on the angle positioning block (2), and a half gear (71) is connected to the output shaft of the servo motor (7).

2. The device for positioning and chamfering sheet metal parts according to claim 1, characterized in that: A wedge-shaped groove (12) is provided in the middle of the chamfering platform (1), and the wedge-shaped groove (12) is rotatably connected to a bidirectional screw rod (13). Two wedge-shaped blocks (14) threadedly connected to the bidirectional screw rod (13) are symmetrically provided in the wedge-shaped groove (12).

3. The device for positioning and chamfering sheet metal parts according to claim 1, characterized in that: A frosted layer is provided on the side wall of the arc-shaped chamfering cutter (31).

4. According to the sheet metal processing positioning and chamfering equipment described in claim 1, a notch (21) is provided on the side wall of the right-angle end of the angle positioning block (2).

5. The device for positioning and chamfering sheet metal parts according to claim 2, characterized in that: The chamfering platform (1) is provided with an arc-shaped corner groove (11), and the arc-shaped corner groove (11) is located at a right angle to the corner positioning block (2).

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