A feeding mechanism of an automatic milling device for vehicle door welds

Abstract

The utility model relates to a kind of feeding mechanism of car door weld joint automatic milling equipment in the field of car door pre-processing equipment, especially;Including: first guide seat, the projection of first guide seat is along X direction linear sliding;First drive mechanism, for driving first guide seat sliding;Second guide seat, second guide seat is set along Z direction sliding, and first guide seat is set on second guide seat;Cam, cam is rotatably connected in the bottom of first guide seat, cam below is equipped with the adjusting pad block compatible with cam, when cam rolls on adjusting pad block, milling cutter mechanism is fed along the surface of car door and cuts;The utility model is limited by hard contact, pushes first guide seat to make milling cutter mechanism milling weld joint and move to weld joint end, is supported by adjusting pad block, makes the cutting path of milling cutter mechanism same with the walking path of cam on adjusting pad block, and this path makes milling cutter mechanism can be fed along the surface of car door and cuts, so that feeding path is more stable.

Description

Technical Field

[0001] This utility model relates to the field of car door pre-processing equipment, and more particularly to a feeding mechanism of an automatic milling equipment for car door welds. Background Technology

[0002] The structure of a car door consists of different outer panels and an internal frame. The internal frame is generally made of high-strength steel. When producing the internal frame, different parts need to be assembled and welded. The welds formed by the weld joints need to be milled, ground and other processes. The surface of the car door can be flat or curved. It is usually cut using a robotic arm with positioning programming. The operation is cumbersome and the initial position of the robotic arm is easily affected.

[0003] Therefore, there is an urgent need to provide an improved technical solution to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned technical problems by providing a milling equipment with a simple structure, stable operation, high milling quality, and the ability to automatically mill weld seams.

[0005] In view of this, the present invention provides a feed mechanism for an automatic milling equipment for car door welds, comprising: The first guide seat, the projection of the first guide seat slides along the X-direction in a straight line; The first driving mechanism is used to drive the first guide seat to slide. The second guide seat is slidably disposed along the Z direction, and the first guide seat is disposed on the second guide seat; The cam is rotatably connected to the bottom of the first guide seat. An adjusting pad adapted to the cam is provided below the cam. When the cam rolls on the adjusting pad, the milling cutter mechanism feeds and cuts along the surface of the door.

[0006] Furthermore, it includes fine-tuning components, which include: The limiting slide block and the adjusting pad are slidably set on the limiting slide block and the sliding direction is consistent with the sliding direction of the second guide seat; An adjusting wedge has a first inclined surface on its upper end and a second inclined surface that abuts against the first inclined surface under the adjusting pad. The fine-tuning lever adjusts the height of the adjusting pad by adjusting the relative position of the first and second inclined planes.

[0007] Furthermore, the first drive mechanism includes: The nut is fixedly mounted on the first guide seat; A lead screw, which fits into a nut; The first servo motor is used to drive the lead screw to rotate.

[0008] Furthermore, it also includes: An auxiliary cylinder, the output rod of which abuts against a second guide seat, and an auxiliary cam 14 abuts against an adjusting pad.

[0009] Also includes: A baffle, used to prevent milling chips from falling onto the adjusting pad, is positioned between the milling cutter and the adjusting pad. The beneficial effects of this utility model are: This invention uses hard contact limiting to push the first guide seat when performing the feed cutting action, causing the milling cutter mechanism to mill the weld and move towards the end of the weld. Supported by the adjusting pad, the cutting path of the milling cutter mechanism is the same as the travel path of the cam on the adjusting pad. This path allows the milling cutter mechanism to feed and cut along the surface of the door, making the feed path more stable.

[0010] This invention uses a lead screw drive to achieve precise adjustment of the pad height down to the micrometer, making it suitable for car doors of varying thicknesses. Attached Figure Description

[0011] Figure 1 A three-dimensional structural diagram of a milling machine including this utility model; Figure 2 for Figure 1 A schematic diagram of the structure of region A in the diagram; Figure 3 for Figure 1 A structural diagram of region B in the diagram; Figure 4 This is a three-dimensional structural diagram of the present invention.

[0012] The markings in the diagram are as follows: 2. Worktable; 6. Milling cutter mechanism; 9. Headstock; 10. First guide seat; 11. Second guide seat; 12. First servo motor; 14. Cam; 16. Adjusting pad; 17. Limit slide; 18. Adjusting wedge; 19. Fine adjustment rod; 27. Auxiliary cylinder; 28. Baffle. Detailed Implementation

[0013] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0014] Example 1: This embodiment provides a feed mechanism for an automatic milling equipment for car door welds, including: First guide seat 10, first guide seat 10 slides linearly along the X direction; The first driving mechanism is used to drive the first guide seat 10 to slide; The second guide seat 11 is slidably disposed along the Z direction, and the first guide seat 10 is disposed on the second guide seat 11; Cam 14 is rotatably connected to the bottom of the first guide seat 10. An adjusting pad 16 adapted to cam 14 is provided below cam 14. When cam 14 rolls on the adjusting pad 16, the milling cutter mechanism 6 feeds and cuts along the surface of the door.

[0015] First guide seat 10, the first guide seat 10 is slidably disposed along the X direction; When the weld is a straight line, the X direction refers to the direction of the weld. Since the directions of the welds are all different, they are not shown in the figure. When the weld is a curve, the X direction refers to the projection of the weld on the horizontal plane and the weld feed direction. The Z direction refers to the direction perpendicular to the X direction (vertical direction).

[0016] It also includes a second guide seat 11, which is slidably mounted on the headstock 9 along the Z direction, and the first guide seat 10 of the upper milling device is slidably mounted on the second guide seat 11 along the X direction.

[0017] The head frame 9 is a frame for mounting the feeding mechanism. The head frame 9 is a hollow frame structure to reduce weight and material costs. The head frame 9 has a vertical mounting plane.

[0018] The second guide seat 11 is slidably connected to the headstock 9 along the Z direction, and the first guide seat 10 is slidably connected to the second guide seat 11 along the X direction. The sliding configuration of the first guide seat 10 and the second guide seat 11 is a connection configuration of a slide rail and a slider that cooperates with the slide rail. Multiple slide rails and sliders can be provided to enhance stability. The movement of the first guide seat 10 and the second guide seat 11 in two vertical directions allows the milling cutter mechanism 6 to move to any point on the plane formed by these two directions, so that the milling cutter mechanism 6 can mill along the weld seam of the curved surface.

[0019] It should be noted that the positions of the first guide seat 10 and the second guide seat can be reversed. The positional relationship is that the first guide seat 10 is installed on the head frame 9, and the second guide seat 11 is installed on the first guide seat 10.

[0020] Cam 14 is rotatably connected to the bottom of the first guide seat 10. The mounting platform 2 is provided with an adjusting pad 16 that is adapted to cam 14. When cam 14 rolls on the adjusting pad 16, the milling cutter mechanism 6 feeds and cuts along the surface of the door.

[0021] A cam 14 is rotatably connected to the first guide seat 10. An adjusting pad 16 adapted to the cam 14 is provided on the mounting platform 2 below the cam 14. When the cam 14 rolls on the adjusting pad 16, the milling cutter mechanism 6 feeds and cuts along the surface of the car door.

[0022] A rolling cam 14 is provided under the first guide seat 10, and an adjusting pad 16 is provided under the cam 14. The adjusting pad 16 is installed on the mounting platform 2. When the feed cutting action is performed, the first guide seat 10 is pushed to make the milling cutter mechanism 6 mill the weld and move towards the end of the weld. Supported by the adjusting pad 16, the cutting path of the milling cutter mechanism 6 is the same as the travel path of the cam 14 on the adjusting pad 16. This path allows the milling cutter mechanism 6 to feed and cut along the surface of the door. The above structure makes the feed path more stable.

[0023] Depending on the thickness of the car door, a higher adjusting shim 16 can be replaced, or a height-adjusting shim of different height can be added under the adjusting shim 16.

[0024] Also includes: The auxiliary cylinder 27 has its output rod abutting against the second guide seat 11, and the auxiliary pressing cam 14 abutting against the adjusting pad 16.

[0025] The auxiliary cylinder 27 is installed on the upper end face of the headstock 9, and the output rod of the auxiliary cylinder 27 abuts against the second guide seat 11. It should be noted that the output direction of the output rod of the auxiliary cylinder 27 is parallel or collinear with the guiding direction of the second guide seat 11. The auxiliary cylinder 27 applies pressure to the second guide seat 11, so that the cam 14 abuts tightly against the adjusting pad 16. When cutting, the cutter will jump. The auxiliary cylinder 27 prevents the cutter from jumping and forces the milling cutter to jump, so that the milling surface is flat and the milling quality is higher.

[0026] Example 2: This embodiment provides a feeding mechanism for an automatic milling equipment for car door welds. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0027] It also includes fine-tuning components, which include: The limiting slide 17 and the adjusting pad 16 are slidably disposed on the limiting slide 17 and the sliding direction is consistent with the sliding direction of the second guide seat 11. Adjusting wedge 18, the upper end surface of adjusting wedge 18 is a first inclined surface, and a second inclined surface that abuts against the first inclined surface is provided under adjusting pad 16; The fine-tuning lever 19 adjusts the height of the adjusting pad 16 by adjusting the relative position of the first inclined plane and the second inclined plane.

[0028] The fine-tuning component is a control component used to fine-tune the height of the limiting slide 17. It includes the limiting slide 17, which specifically comprises: a fixed base mounted on the mounting platform 2, with four guide rods on its upper surface; two sliding mounting seats that slide up and down on the fixed base; and an adjusting pad 16 fixedly installed between the sliding mounting seats. The sliding mounting seats have guide holes adapted to the guide rods. Through the cooperation of the guide rods and guide holes, the sliding mounting seats can slide on the fixed base. The sliding direction, i.e., the forward and backward direction, must be consistent with the sliding direction of the second guide seat 11. This means the adjusting pad 16 can only adjust its position and height in the sliding direction to prevent path deviation. The upper end of the adjusting wedge 18... The first inclined surface is provided on the lower end surface of the adjusting pad 16, and the second inclined surface is provided on the lower end surface of the adjusting pad 16 to abut against the first inclined surface. The position of the adjusting wedge 18 is changed by the fine-tuning rod 19, so that the adjusting pad 16 moves up or down, thereby fine-tuning the height of the milling path. The moving of the adjusting wedge 18 can be driven by various driving methods, such as pneumatic, hydraulic or gear and rack transmission. In this embodiment, the screw transmission is used. The fine-tuning rod 19 is rotatably set on the fixed base. One end of the fine-tuning rod 19 is provided with an adjusting nut, and the other end is provided with a thread and is threaded to the screw hole provided in the adjusting wedge 18. When the adjusting nut is rotated to rotate the fine-tuning rod 19, the adjusting wedge 18 moves along the fine-tuning rod 19. The height of the adjusting pad 16 can be finely adjusted to a few microns by the screw transmission.

[0029] The first drive mechanism includes: The nut is fixedly mounted on the first guide seat 10; A lead screw, which fits into a nut; The first servo motor 12 is used to drive the lead screw to rotate.

[0030] The first servo motor 12 drives the lead screw to rotate, and the first guide seat 10 is driven by the cooperation of the lead screw and nut, thus executing the feed cutting of the milling cutter mechanism 6; the feed cutting speed of the milling cutter mechanism 6 is controlled by controlling the speed of the servo motor.

[0031] Also includes: The baffle 28 is used to prevent milling chips from falling onto the adjusting pad 16. The baffle 28 is fixedly installed on the worktable 2 and is positioned between the milling cutter and the adjusting pad 16.

[0032] The baffle 28 is fixedly installed on the worktable 2 by screws. The baffle 28 is used to block the metal chips generated during milling and prevent the chips from falling onto the adjusting pad 16. It should be noted that the methods for preventing milling chips from falling onto the adjusting pad 16 include, but are not limited to, the methods described above.

[0033] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms fall within the scope of protection of this application.

Claims

1. A feeding mechanism for an automatic milling machine for car door welds, characterized in that, include: The first guide seat (10) slides linearly along the X direction; The first driving mechanism is used to drive the first guide seat (10) to slide; The second guide seat (11) is slidably disposed along the Z direction, and the first guide seat (10) is disposed on the second guide seat (11); Cam (14) is rotatably connected to the bottom of the first guide seat (10). An adjusting pad (16) adapted to the cam (14) is provided below the cam (14). When the cam (14) rolls on the adjusting pad (16), the milling cutter mechanism (6) feeds and cuts along the surface of the door.

2. The feeding mechanism of an automatic milling equipment for car door welds according to claim 1, characterized in that: It also includes fine-tuning components, which include: The limiting slide (17) and the adjusting pad (16) are slidably set on the limiting slide (17) and the sliding direction is consistent with the sliding direction of the second guide seat (11); Adjusting wedge (18), the upper end surface of the adjusting wedge (18) is a first inclined surface, and a second inclined surface that abuts against the first inclined surface is provided under the adjusting pad (16); The fine adjustment lever (19) adjusts the height of the adjusting pad (16) by adjusting the relative position of the first inclined plane and the second inclined plane.

3. The feeding mechanism of an automatic milling equipment for car door welds according to claim 1, characterized in that, The first drive mechanism includes: Nut, which is fixedly mounted on the first guide seat (10); A lead screw, which fits into a nut; The first servo motor (12) is used to drive the lead screw to rotate.

4. The feeding mechanism of an automatic milling equipment for car door welds according to claim 1, characterized in that, Also includes: The output rod of the auxiliary cylinder (27) abuts against the second guide seat (11), and the auxiliary cam (14) 14 abuts against the adjusting pad (16).

5. The feeding mechanism of an automatic milling equipment for car door welds according to claim 1, characterized in that, Also includes: A baffle (28) is provided to prevent milling chips from falling onto the adjusting pad (16) and is positioned between the milling cutter and the adjusting pad (16).

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