Automobile part grinding and milling equipment

Abstract

The utility model relates to automobile part grinding and milling equipment which comprises a workbench, a clamp and a machining head for machining a workpiece, the clamp comprises a base, a limiting block arranged above the base, a mounting frame arranged on the base, a first limiting pin arranged in a circular ring of the workpiece in a penetrating mode and a second limiting pin for limiting the position of the workpiece, a limiting groove for embedding the first part of the workpiece is formed in the upper end of the limiting block, the depth of the limiting groove is smaller than the thickness of the first part of the workpiece, the first limiting pin and the second limiting pin penetrate through the mounting frame, the first limiting pin abuts against the inner wall of the circular ring, and the second limiting pin abuts against the side wall, close to the first part, of the second part. The limiting groove and the first limiting pin are used for limiting the position of the first part of the workpiece and the position of the circular ring, so that four degrees of freedom of the workpiece in the horizontal direction are limited, the second limiting pin abuts against the second part of the workpiece, so that two degrees of freedom of the workpiece in the vertical direction are limited, and the workpiece can be stably fixed.

Description

Technical Field

[0001] The present application relates to the technical field of door hinge processing equipment, and in particular to an automobile parts grinding and milling equipment. Background Art

[0002] The automobile door hinge is a component used to connect the door to the body. Figure 1 As shown, it includes a first part 41, a second part 42 and a third part 43 connected in sequence, the second part 42 is a quarter arc, the third part 43 is arranged at one end of the second part 42 and coincides with the radius of the end of the second part 42, the first part 41 is arranged at one end of the second part 42 away from the third part 43, and the first part 41 is arranged perpendicular to the third part 43 and away from the third part 43, a ring 44 is also arranged at the end of the third part 43 away from the second part 42, and a plurality of assembly holes 45 are also penetrated on the surface of the first part 41.

[0003] During the processing, it is necessary to process the side wall of the first part in the protruding direction toward the second part, but the overall structure of the first part, the second part and the third part is relatively irregular. When directly clamping with a bench vise, it is difficult to stably limit the position of the first part, the second part and the third part.

[0004] Therefore, it is necessary to propose a new technical solution to solve the above problems. Utility Model Content

[0005] In order to enable a door hinge to obtain a stable limit position during processing, the present application provides an automobile parts grinding and milling equipment.

[0006] The present application provides an automobile parts grinding and milling equipment, which adopts the following technical solution:

[0007] A kind of automobile parts grinding and milling equipment includes a workbench, a fixture arranged on the workbench and a processing head for processing a workpiece, the fixture includes a base arranged on the workbench, a limit block arranged above the base, a mounting frame arranged on the base, a first limit pin passed through a circular ring of the workpiece and a second limit pin for limiting the position of the workpiece, a limit groove for embedding a first part of the workpiece is opened at the upper end of the limit block, the depth of the limit groove is less than the thickness of the first part of the workpiece, the first limit pin and the second limit pin are both passed through the mounting frame, the first limit pin abuts against the inner wall of the circular ring, and the second limit pin abuts against the side wall of the second part close to the first part.

[0008] By adopting the above technical solution, the position of the first part and the circular ring of the workpiece is limited by the limit groove and the first limit pin, so that the four degrees of freedom of the workpiece in the horizontal direction are limited, and the second limit pin is abutted against the second part of the workpiece to limit the two degrees of freedom of the workpiece in the vertical direction, so that the workpiece can be stably fixed.

[0009] Optionally: a positioning column for supporting the workpiece is also provided on the mounting frame, the positioning column is horizontally arranged on the mounting frame, and the upper end of the positioning column abuts against the lower end of the second part.

[0010] By adopting the above technical solution, when the workpiece is placed on the base, the positioning column is used to support the workpiece, so that when the first limit pin and the second limit pin have not yet limited the workpiece, the position of the workpiece is still not easy to change, making the subsequent fixation of the first limit pin and the second limit pin more convenient.

[0011] Optionally: a positioning block for limiting the horizontal position of the circular ring is further provided on the base, a plurality of positioning grooves are provided on the upper end of the positioning block, and the lower end of the circular ring is arranged in the positioning groove and abuts against the inner wall of the positioning groove.

[0012] By adopting the above technical solution, the position of the circular ring of the workpiece is limited by the positioning block, so that the first limiting pin can be inserted into the circular ring more easily.

[0013] Optionally: a plurality of diamond blocks are arranged in the limiting groove, the upper ends of the diamond blocks are embedded in the assembly holes of the workpiece, and the upper end surfaces of the diamond blocks are flush with the upper end surface of the limiting blocks.

[0014] By adopting the above technical solution, the end position of the first part of the workpiece is limited by a diamond block, so that the workpiece is not easy to slide along the limit groove after being placed in the limit groove. The workpiece can remain stable after being placed in the limit groove, which is also convenient for subsequent limiting.

[0015] Optionally: the upper edge of the diamond block is provided with a chamfer.

[0016] By adopting the above technical solution, the area of ​​the upper end of the diamond block is reduced by chamfering, so that the diamond block is easier to insert into the assembly hole.

[0017] Optionally: One end of the first limit pin and the second limit pin passing through the mounting frame is provided with a threaded portion, and the threaded portion cooperates with the thread of the mounting frame.

[0018] By adopting the above technical solution, the first limiting pin and the second limiting pin are fixed to the mounting frame by using the threaded portion, so that the position of the workpiece can be stably limited.

[0019] Optionally: the diameter of the threaded portion is smaller than the diameters of the first limit pin and the second limit pin, and the connection between the threaded portion and the first limit pin and the second limit pin has a smooth transition.

[0020] By adopting the above technical solution, the diameter of the threaded portion is reduced, so that the threaded portion can pass through the ring more easily, thereby making the connection between the first limiting pin and the workpiece more stable.

[0021] Optionally: both the first limit pin and the second limit pin are provided with a handle at one end away from the threaded portion.

[0022] By adopting the above technical solution, the handle is used to rotate the first limit pin and the second limit pin, so that the rotation of the first limit pin and the second limit pin is more convenient.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Use the limiting groove and the positioning groove to limit the position of the first part and the circular ring of the workpiece, and then use the first limiting pin and the second limiting pin to limit the position of the workpiece, so that the six degrees of freedom of the workpiece are all limited, thereby making the workpiece more stable;

[0025] 2. Use the diamond block to define the position of the first part of the workpiece, thereby further defining the position of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of a product in the background technology;

[0027] Figure 2 This is a schematic diagram for illustrating the overall structure of an embodiment of the present application;

[0028] Figure 3 This is a schematic diagram for illustrating the structure of a clamp according to an embodiment of the present application.

[0029] In the figure, 1, workbench; 2, processing head; 3, fixture; 31, base; 32, limit block; 321, limit groove; 33, mounting frame; 34, first limit pin; 35, second limit pin; 351, threaded portion; 352, handle; 36, positioning block; 361, positioning groove; 37, positioning column; 38, diamond block; 381, chamfer; 41, first part; 42, second part; 43, third part; 44, ring; 45, assembly hole. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with the accompanying drawings.

[0031] The present application discloses an automobile parts grinding and milling equipment, such as Figure 2 and 3As shown, it includes a workbench 1, a fixture 3 arranged on the workbench 1, and a processing head 2 for processing a workpiece. The fixture 3 includes a base 31 fixed on the workbench 1 by bolts, a limit block 32 fixed on the base 31 by bolts, a mounting frame 33 arranged on the base 31, a first limit pin 34 passing through a circular ring 44 of the workpiece, and a second limit pin 35 for limiting the position of the workpiece. The mounting frame 33 is arranged in an inverted U-shape, part of the workpiece is arranged in the mounting frame 33, the first limit pin 34 and the second limit pin 35 are both detachably connected to the mounting frame 33, the first positioning groove 361 passes through the circular ring 44 of the workpiece, thereby limiting the position of one end of the workpiece, and the second limit pin 35 abuts against the side wall of the second part 42 close to the first part 41, thereby limiting the upward rotation of the workpiece, so that the four degrees of freedom of the workpiece are limited.

[0032] like Figure 3 As shown, a limiting groove 321 for limiting the first part 41 of the workpiece is provided on the limiting block 32, and the limiting groove 321 penetrates the side wall of the limiting block 32 close to the mounting frame 33 and away from the mounting frame 33. The first part 41 of the workpiece is embedded in the limiting groove 321, so that the movement of the first part 41 of the workpiece is limited by the limiting groove 321, so that the six degrees of freedom of the workpiece are all limited. In order to prevent the processing head 2 from directly contacting the limiting block 32 during the processing of the workpiece, the depth of the limiting groove 321 is less than the thickness of the first part 41 of the workpiece, so that after the first part 41 of the workpiece is placed in the limiting groove 321, the upper end of the first part 41 of the workpiece can protrude from the surface of the limiting groove 321, so that the working process of the processing head 2 is not easily affected.

[0033] In order to make it easier for the first limiting pin 34 to be inserted into the circular ring 44 of the workpiece, a positioning block 36 for limiting the position of the circular ring 44 of the workpiece is further provided on the base 31. The positioning block 36 is arranged in the notch of the mounting frame 33. A plurality of positioning grooves 361 are provided at the upper end of the positioning block 36. The positioning grooves 361 penetrate the end face of the positioning block 36 close to the limiting block 32 and the end face away from the limiting block 32. The circular ring 44 of the workpiece is embedded in the positioning grooves 361 and fits with the inner wall of the positioning grooves 361. The lower end of the inner wall of the circular ring 44 is arranged higher than the upper end of the positioning block 36. The positioning grooves 361 are used to limit the position of the circular ring 44 of the workpiece so that the axis of the circular ring 44 of the workpiece can be kept horizontal, thereby making it easier for the first limiting pin 34 to be inserted into the circular ring 44 of the workpiece.

[0034] In order to ensure that the workpiece can be stably placed in the mounting frame 33 and the limiting groove 321 when the first limiting pin 34 and the second limiting pin 35 are not used for limiting, a horizontally arranged positioning column 37 is also penetrated in the mounting frame 33. The positioning column 37 is arranged parallel to the axis of the circular ring 44 of the workpiece. The upper end of the positioning column 37 abuts against the lower end of the second part 42 of the workpiece, so that the workpiece can be suspended on the positioning column 37, and the positioning column 37 is used to keep the workpiece in a vertical state, thereby facilitating the subsequent limiting of the first limiting pin 34 and the second limiting pin 35.

[0035] In order to prevent the first part 41 of the workpiece from moving along the limiting groove 321 after being placed in the limiting groove 321, a plurality of rhombus blocks 38 are fixed in the limiting groove 321 by bolts, and the rhombus blocks 38 are inserted into the assembly hole 45 of the workpiece, and the intersection of the outer walls of the rhombus blocks 38 abuts against the inner wall of the assembly hole 45, and the upper end surface of the rhombus blocks 38 is set lower than the upper end surface of the limiting block 32. When the first part 41 is placed in the limiting groove 321, the rhombus blocks 38 are embedded in the assembly hole 45 to limit the position of the first part 41, so that the position of the workpiece remains stable.

[0036] In order to enable the diamond block 38 to easily enter the assembly hole 45 when the first part 41 of the workpiece moves toward the limiting groove 321, a chamfer 381 is further provided at the upper edge of the diamond block 38. The chamfer 381 reduces the area of ​​the upper end surface of the diamond block 38, thereby making it easier for the diamond block 38 to enter the assembly hole 45.

[0037] In order to ensure that the first limit pin 34 and the second limit groove 321 can be stably connected to the mounting frame 33, one end of the first limit pin 34 and the second limit pin 35 are provided with a threaded portion 351, and the threaded portion 351 is used to threadably cooperate with the mounting frame 33, so that the first limit pin 34 and the second limit pin 35 can be stably connected to the mounting frame 33, thereby achieving stable fixation of the workpiece.

[0038] In order to allow the threaded portion 351 to easily pass through the ring 44, the diameter of the threaded portion 351 is smaller than the diameters of the first limit pin 34 and the second limit pin 35, and the connection between the threaded portion 351 and the first limit pin 34 and the second limit pin 35 has a smooth transition, so that the first limit pin 34 can more easily pass through the ring 44, making the use of the first limit pin 34 more convenient.

[0039] In order to make the rotation and movement of the first limit pin 34 and the second limit pin 35 easier, a cylindrical handle 352 is coaxially fixed to one end of the first limit pin 34 and the second limit pin 35 away from the threaded portion 351, and the diameter of the handle 352 is larger than the diameter of the first limit pin 34 and the second limit pin 35, so that when the first limit pin 34 and the second limit pin 35 need to be rotated, they can be rotated by the handle 352, thereby making the rotation of the first limit pin 34 and the second limit pin 35 more convenient.

[0040] The implementation principle of this embodiment is: remove the first limit pin 34 and the second limit pin 35 from the mounting bracket 33, then place the workpiece above the positioning column 37, so that the first part 41 of the workpiece is set in the limit groove 321 and the diamond block 38 is embedded in the assembly hole 45, so that the ring 44 of the workpiece is set in the positioning groove 361, then pass the first limit pin through the ring 44 of the workpiece and threadedly connect it with the mounting bracket 33, pass the second limit pin from above the workpiece and abut against the upper end of the workpiece, thread the second limit pin and the mounting bracket 33, and then descend the processing head 2 to mill the upper surface of the first part 41 of the workpiece.

[0041] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automobile parts grinding and milling equipment, characterized in that: The invention comprises a workbench (1), a fixture (3) arranged on the workbench (1), and a processing head (2) for processing a workpiece. The fixture (3) comprises a base (31) arranged on the workbench (1), a limit block (32) arranged above the base (31), a mounting frame (33) arranged on the base (31), a first limit pin (34) inserted into a workpiece ring (44), and a second limit pin (35) for limiting the position of the workpiece. A limit groove (321) for embedding a first part (41) of the workpiece is provided at the upper end of the limit block (32). The depth of the limit groove (321) is less than the thickness of the first part (41) of the workpiece. The first limit pin (34) and the second limit pin (35) are both inserted into the mounting frame (33). The first limit pin (34) abuts against the inner wall of the ring (44), and the second limit pin (35) abuts against the side wall of the second part (42) close to the first part (41).

2. The automobile parts grinding and milling equipment according to claim 1, characterized in that: The mounting frame (33) is also provided with a positioning column (37) for supporting the workpiece. The positioning column (37) is horizontally arranged on the mounting frame (33), and the upper end of the positioning column (37) abuts against the lower end of the second part (42).

3. The automobile parts grinding and milling equipment according to claim 1, characterized in that: The base (31) is also provided with a positioning block (36) for limiting the horizontal position of the circular ring (44); a plurality of positioning grooves (361) are provided at the upper end of the positioning block (36); the lower end of the circular ring (44) is arranged in the positioning groove (361) and abuts against the inner wall of the positioning groove (361).

4. The automobile parts grinding and milling equipment according to claim 2, characterized in that: A plurality of rhombus blocks (38) are arranged in the limiting groove (321), the upper ends of the rhombus blocks (38) are embedded in the assembly holes (45) of the workpiece, and the upper end surfaces of the rhombus blocks (38) are flush with the upper end surfaces of the limiting blocks (32).

5. The automobile parts grinding and milling equipment according to claim 4, characterized in that: The upper edge of the diamond block (38) is provided with a chamfer (381).

6. The automobile parts grinding and milling equipment according to claim 1, characterized in that: One end of the first limiting pin (34) and the second limiting pin (35) passing through the mounting frame (33) is provided with a threaded portion (351), and the threaded portion (351) is threadably matched with the mounting frame (33).

7. The automobile parts grinding and milling equipment according to claim 6, characterized in that: The diameter of the threaded portion (351) is smaller than the diameters of the first limiting pin (34) and the second limiting pin (35), and the connection between the threaded portion (351) and the first limiting pin (34) and the second limiting pin (35) is smoothly transitioned.

8. The automobile parts grinding and milling equipment according to claim 6, characterized in that: A handle (352) is provided on one end of the first limiting pin (34) and the second limiting pin (35) away from the threaded portion (351).

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